CN1702208B - Pressure rod and spinning preparation machine with the pressure rod - Google Patents
Pressure rod and spinning preparation machine with the pressure rod Download PDFInfo
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- CN1702208B CN1702208B CN 200510076078 CN200510076078A CN1702208B CN 1702208 B CN1702208 B CN 1702208B CN 200510076078 CN200510076078 CN 200510076078 CN 200510076078 A CN200510076078 A CN 200510076078A CN 1702208 B CN1702208 B CN 1702208B
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Abstract
The pressure rod (20), to deflect a sliver (FB') between two clamping lines in a drafting field (HF), is across the whole width of a sliver drawing unit (4) for a spinner. The pressure rod is characterized in that at least a connection device (29) for connecting an external pressure air or suction air connecting to at least a connection device (29) via at least a hollow section (30), and connecting to external circumstance via at least an opening (30) of at least a hollow section, such that the fiber waste and/or dust absorbed in the air cleaning drafting field (HF) can be eliminated with pressure air or suction air. Meantime a method is proposed for eliminating fiber waste and/or dust absorbed in the air cleaning drafting field (HF) of a spinning preparing machine.
Description
Technical field
The present invention relates to a kind of pressure bar, a fiber web can proofreaied and correct or turn to this pressure bar between two jaw lines of draw zone in the width range of a drafting system draw zone.In addition, the invention still further relates to the spinning preparation machine that has this pressure bar, and from draw zone, remove the method for fiber and dirt.
Background technology
When pressure bar particularly uses, be used for guiding so-called floating fiber on adjustable and uncontrollable drawing frame.Floating fiber short-term through in the drafting system course of conveying, by up roller to descending roller to the draw zone that constitutes in, neither can be by descending roller to clamping, also can be by up roller to clamping.In most of the cases, draw zone be by middle roller to the main drawing area of front roller to constituting.But also it is contemplated that by rear roller to a pressure bar being placed in the preliminary draft district that constitutes with middle roller.
But when the working pressure rod, run into problem, particularly the upper surface at it has deposited some fibers and other particulate that combine strip to branch away by fiber.Its reason is, derives from fiber skein and rests in the drafting system scope at main drawing area staple fibre and the dirt that comes that raise up, and major part drops on the pressure bar, even falls back on the fiber skein.Both of these case does not hope to take place, because at interval necessary at regular intervals on the one hand cleaning pressure rod, the result of dirt falling can damage the quality of drafted fiber skein on the other hand.According to the prior art level, suggestion utilizes the suction pipe that stretches to main drawing area from above to absorb as solution, because can reach bigger air mass flow and higher air velocity like this.But such result who reaches seldom can be satisfactory.
Summary of the invention
Task of the present invention is the problem that eliminating or the draw zone that reduces drafting system are at least stain.This task solves through pressure bar according to the present invention and spinning preparation machine.Pressure bar of the present invention can turn to a fiber to combine strip in the draw zone width range of drafting system between two jaw lines of draw zone; Wherein, The jockey that has a connection external compression or suction air source at least; Through at least one hollow section that is connected with at least one jockey; And, fiber waste-material and dirt are removed in the scope of draw zone (HF) so that utilize compressed air or suck air through at least one opening that at least one hollow section is connected with external environment condition.
Can find out advantage of the present invention particularly in; Utilize pressure bar to influence the liquidity ratio in the draw zone; Take other measure (from top absorption) according to the present art in case of necessity; To reduce to rest on fiber and dirt the size and/or the quantity of the turbulent flow of draw zone, reduce to cause fiber and dirt to be deposited on the flow dead in the draw zone, reach higher dirt and transport rate.According to two measures of the present invention, be to utilize pressure bar to add compressed air and suction air on the one hand, be the moulding of optimizing pressure bar on the other hand, can be used alternatingly, under the situation of having only a unique pressure bar, also can use together.
According to a first aspect of the invention; Pressure bar has a jockey that connects the external compression air source or suck air source at least; Whereby; Perhaps fiber, dirt and the hot-air that will stay in the draw zone are in case of necessity excluded, perhaps they are sucked, and transport through a jockey through at least one opening through the compressed air that from least one opening, flows out.Wherein the first string is directly compressed air to be sent into main drawing area, and strengthens the air-flow that comes out from main drawing area.
According to a preferable enforcement pattern, have at least a hollow section to be designed to tubular wall extending therebetween in pressure bar.Preferably, on the next door of pressure bar, preset an opening simultaneously at least, in order to connect cavity and external environment condition.Pressure bar thereby a kind of hollow section shapes is just arranged not only is very suitable for bearing known fiber control, and is very beneficial for being used for a fiber and dirt and transports.
As alternative scheme, on pressure bar,, a hollow lath (for example on the gummed) with hollow section function is installed for example in its longitudinal extension section, this lath has a jockey on the one hand at least, has an opening on the other hand at least.
According to the enforcement pattern of an excellence, its hollow section is in the section configuration that a kind of variation is vertically arranged.Whereby, can be compensated, particularly increase gradually along with the distance of leaving jockey and when attenuating when the section configuration of hollow section along with the pressure that occurs under certain condition away from jockey gradually descends.
Additional or alternative design respectively is provided with a jockey on two end faces of its pressure bar according to another, uses compressed air and sucks air through these two jockeys respectively.
On pressure bar according to the present invention, can design a plurality of hollow section and replace a unique hollow section, hollow section can be for example from the end face of pressure bar to the middle part, and separate them each other with one intermediate bulkheads in the centre.
In view of having an opening at least, opening can preferentially design conglobate, polygonal or microscler (slit-shaped openings).In addition, a plurality of adjacent openings preferentially are distributed in the width range of draw zone basically, so that remove fiber and dirt as far as possible effectively.If adopt one or more gap openings, same principle also suits to follow.
At least one opening is paid the utmost attention to directed with respect to the draw zone of needs cleaning, guarantee fiber and dirt are carried out the best removing.In a flexible program, at least one opening upwards (in other words, leaving fiber skein) is directed.In another flexible program, at least one opening is directed facing to descending top roller (front roller on main drawing area is), thereby can raise up and transport the free-fiber that produces near in wedge place and the wedge.
Also can predesignate preset two parallel longitudinal slot openings; Gap opening also can interrupt; Perhaps preset a plurality of openings are lined up two row or multiple rows, and wherein a row opening can be directed facing to said roller, and the direction that another row gap opening then goes to leave fiber skein is directed.Perhaps a row opening is oriented in the wedge of two front rollers formations, and another row opening is facing to last front roller.Also can predesignate, two row or multiple row slit or opening are by constituting at the some slits or the opening that vertically are staggeredly arranged.
A kind of preferable design according to the present invention, at least two openings have the different cross-sectional areas size, in the hope of in draw zone, realizing the optimal flow ratio.Particularly, if the cross sectional dimensions that several openings at least arranged has confirmed that according to a kind of pattern of implementing that relates to these characteristics this is favourable from the work that the end face of pressure bar successively decreases to the pressure bar middle part successively.According to a corresponding design, (under the situation that adopts circular open successively) centre from the outer surface to the pressure bar, the diameter of open cross-section is followed successively by 4mm, 3.5mm, 3mm, 2.5mm, or the like.
In addition, if having at least several openings a chamfering or rounding to be arranged, then be favourable at its outlet side, because can realize uniform air-distribution at draw zone like this, and can avoid occurring the dead band effectively.
In a preferred configuration according to the pressure bar of root invention, having several openings at least is centroclinal towards pressure bar from inside to outside.And verified, through this measure, draw zone can obtain more uniform air-distribution.
Useful is; At least can adjust the orientation of an opening with respect to drafting system, so that, stretch and draw type of material according to the physical dimension of drafting system (for example two straight lines adjustment length between vices that roller is right); Rate of delivery; And the liquidity ratio in the relevant therewith draw zone, the coating of top roller and/or other parameter, it is directed to carry out a suboptimization.For this purpose, pressure bar can use bearing material at its end face, rotates so that can be bearing on the drafting system.
In addition, at least one opening is preferably 0 ° to 90 ° to the air-supply angle α of horizontal plane, and wherein angle α should open facing to descending roller.In the time of 0 °, in the wedge of front roller, blow, facing to last front roller air-supply, upwards blow in the time of 90 ° and blow between supreme middle roller and the last front roller in the time of 45 °.
As indicated above, pressure bar also can have a suction opening at least, and this opening is connected surrounding environment and hollow section.Like this, fiber and dirt can pass through on the pressure bar and the hollow section in the pressure bar is got rid of, but are noted that at least one opening, at least one hollow section and at least one jockey must not stop up.At least one suction opening preferably can be directed on the fiber web of drafting system.Under the situation of a plurality of suction openings, suction opening can be at the zones of different interior orientation of draw zone.
In another specific design, pressure bar adopts the mode of water jet pump to work.During work, when at least one hollow section is carried out the compressed air loading.Air and fiber can suck through at least one the air-breathing opening on the pressure bar or in the pressure bar, and can be discharged into the external environment condition from draw zone through at least one exhaust port on the pressure bar or in the pressure bar and remove.
According to a second aspect of the invention; Pressure bar is characterised in that to have a kind of section configuration; This section configuration can influence the liquidity ratio in the draw zone, and the quantity of the flow dead between the draw zone top roller and/or size (comparing with the known pressure rod) are reduced relatively.Through the pressure bar of this shape, can reach the purpose that improves air velocity through optimizing.Turbulent flow position in the draw zone possibly be shifted, and perhaps possibly partly thoroughly avoid the formation of turbulent flow.The flow velocity of the air that will take away dirt from draw zone possibly be improved, thereby or improves the effect of removing.
In the embodiment of a crosssection shape design through optimization, pressure bar has one along its longitudinally extending surface, matches with the aspectant circumferential surface of adjacent descending top roller in this surface.Wherein, particularly the surface of said pressure bar is imitated according to the part drum surface of top roller basically.
To have the pressure bar of optimizing section configuration another surface of designing in order contacting with fiber web can also to be arranged, this surface is made up of a plane basically, can be parallel to fibroreticulate the trend and arrange.
As the replacement scheme of said characteristic or replenish, the cross section of said preferable pressure bar along down direction (being the direction of travel of fiber skein) be tapered to.
In a preferable flexible program, the lower surface of pressure bar has a recessed arc curve.Simultaneously, lower surface narrows down along descending pointed edge gradually, points to the wedge of two descending rollers of draw zone.The advantage of recessed arc curve is; Up edge guides fiber to combine strip in the conventional mode; But aduncate part does not combine strip to contact with fiber; Therefore can not produce interference, and descending edge works to optimize liquidity ratio between pressure bar and last front roller, to the almost not influence of drawing-off state of fiber skein.
In order further to improve the flow condition of draw zone, pressure bar does not have perhaps almost not pass through the edge of rounding on the upper surface of fiber skein at it, so that in this scope, reduce the dead band.
The cross section of said various pressure bars each cross section in its length range is preferably identical.But do not get rid of the cross section that slightly changes yet.
The present invention also comprises a kind of spinning preparation machine; Particularly a kind of drawing frame; Combing machine, combing preparation machine or carding machine, and be furnished with drafting system; This drafting system has at least one to constitute two draw zones that roller is right, and machine has a pressure bar that is arranged in the draw zone according to the invention at least simultaneously.
Have the further design of superiority according to the present invention, machine has a kind of device, is used for regulating the degree that compressed air loads, so that can regulate the removing to fiber and dirt more accurately.Simultaneously, the degree of compressed air loading can adapt with the speed of producing and/or the dirty degree of machined material.
According to another preferable Machinery Design, pressure bar arranges with respect to middle roller that at main drawing area it can move thereupon when the draw zone change width under situation about keeping the middle roller same distance.In this case, pressure bar can be connected with the stand-off of for example going up middle roller.
In addition, when above draw zone, presetting a suction apparatus, suction apparatus assists to transport fiber waste-material and/or the dirt that produces at draw zone, and fiber waste-material and/or dirt utilize pressure bar of the present invention to raise up and be transported to the direction of suction apparatus.
The present invention also comprises and utilizes above-mentioned pressure bar to remove the method for fiber and/or dirt from the draw zone of drafting system, wherein compressed air is sent into draw zone, in the scope of draw zone, obtains and take away fiber waste-material and/or dirt.
Description of drawings
Below, according to accompanying drawing the present invention is described further.Among the figure:
Fig. 1 representes the side view (not having regulator) of a drawing frame with sketch map;
Flow simulating figure when Fig. 2 representes to adopt a circular cross-section pressure bar with side view;
Flow simulating figure when Fig. 3 is the conventional pressure rod;
Flow simulating figure when Fig. 4 optimizes the pressure bar of shape of cross section for using employing of the present invention;
Fig. 5 implements the flow simulating figure of pattern for using the another kind of optimizing the shape of cross section pressure bar;
Fig. 6 is according to the drafting system of Fig. 1 diagrammatic side view when pressure bar loads with compressed air;
Fig. 7 is the vertical view according to the drafting system of Fig. 6;
Fig. 8 is the pressure bar after amplifying according to Fig. 7;
Fig. 9 is another enforcement pattern with pressure bar of air-breathing and exhaust port;
The flow simulating figure of Figure 10 during for the pressure bar that adopts non-compressed air and load;
The same Figure 10 of Figure 11, but have compressed air to load;
Figure 12 is the cross-sectional view of Figure 11;
The same Figure 12 of Figure 13, but its pressure bar can rotate around the longitudinal axis;
Figure 14 is that the another kind when adopting the pressure bar that the compressed air loading is arranged is implemented pattern;
Figure 15 a)-f) for having the different pressures rod that compressed air loads, representes with side view and front view respectively; And
Figure 16 representes with front view and another embodiment of the pressure bar seen from end face.
The specific embodiment
Shown in Figure 1 is the diagrammatic side view of a drawing frame, and this drawing frame is as shown in the embodiment of spinning preparing machine (spinning preparation machine of here more definitely saying so).According to this example, many untwisted basically fiber skein FB (having only these fiber skein to process in front here) are arranged and be emitted on the front of drawing frame.Also might only introduce a fiber skein FB, this fiber skein FB is placed directly in the front of preposition carding machine or combing machine to drawing frame.Have a head of the trumpet 12 to be arranged in the porch of drawing frame, it is with the fiber skein compacting.As replacement scheme, also can use other compaction apparatus.Pass a scanning means 2,3, it constitutes drawing frame core component drafting system 4 to the conpressed fibers strip FB ' introducing of being made up of many single fiber skein FB as a part of charging detector.Drafting system generally has three drafters or roller right, two rollers between carry out drawing-off.They be rear roller to 5a, 5b, middle roller to 6a, 6b and output or front roller to 7a, 7b.They rotate with the peripheral speed that improves gradually in this order.Because the right peripheral speed of roller do not wait, the fiber skein FB ' that in drafting system, is processed to web-like is stretched according to the corresponding proportion of peripheral speed.Rear roller constitutes so-called preliminary draft district VF to 5a, 5b and middle roller to 6a, 6b, and middle roller constitutes so-called main drawing area HF to 6a, 6b and front roller to 7a, 7b.
In addition, in main drawing area, arranged a pressure bar 20, pressure bar is used for making fiber skein FB ' to proofread and correct or turns to, and carries out fibre guide better, particularly for be not sandwiched in two rollers between fiber (so-called floating fiber).The fiber skein FB ' that is stretched is by means of turning to top roller 9 and become strip device 10 to join, and through pressure roller to 13,14 be arranged in fiber skein passage 16 in the rotating disk 17 that rotates with angular velocity omega with v
LSpeed be placed in the bar tube 18.
Fig. 2 with shown in Figure 3 be two different computer flow simulating figure among the main drawing area HF, wherein, Fig. 2 shows the pressure bar 20 of a circular cross section.Show among the figure that (German: Todzone), that is to say almost do not have streamline to exist, dirt particles can be deposited on the pressure bar 20 before pressure bar 20, to have formed a dead band.Under the situation that adopts the normal pressure rod 20 with oval cross section shown in Figure 3, though also there is such dead band to occur, distinct much less, because go up space between middle roller 6b and the pressure bar 20 2mm that only has an appointment.
Can find out that according to simulation drawing the cross sectional shape of pressure bar 20 is to the very big influence of being formed with of air turbulence (closed line).Through the shape of improving pressure bar 20 position of turbulent flow is shifted, perhaps partly avoids the formation of turbulent flow.The pressure bar of adopt optimizing also can improve the flow velocity of the air of dirt being taken away from draw zone, thereby also can improve the efficient of removing contamination.
When adopting Fig. 4 and pressure bar 20 of the present invention shown in Figure 5, the circular camber line (see figure 3) on oval normal pressure rod top is replaced by the edge line 21 of the pressure bar limit wall of the vertical mutual butt joint of twice.Shown in flow simulating figure, original in this case dead band of causing almost all disappears.
Be in the one side in downstream at pressure bar 20, turbulent flow appears near the fiber skein FB '.Employing such turbulent flow (German: Wirbel sees the mark among Fig. 4) all occurs during according to Fig. 2, all three kinds of pressure bars of 3 and 4.According to the present invention; The remedial measure of taking is, the lower surface 22 of the pressure bar shown in Fig. 5 20 extended to the wedge Z that constitutes near by two roller 7a, 7b, and hospitalizing with wedge Z opposed edges line 26 places; With edge line 26 roundings, and be bent upwards slightly.Utilize such shape-designing can limit the turbulent flow on the fiber skein FB ' effectively, thereby can take away the dirt that discharges at main drawing area from wedge district and main drawing area HF through refluxing.This effect will could realize that this surface play the guiding role for fiber that comes from main drawing area and dirt by the surface 24 adjacent with top roller 7b that is elongated equally.
All pressure bars 20 shown in Fig. 6-15 all load with compressed air.Pressure bar 20 shown in Fig. 6 has illustrated detail drawing in Fig. 8, the same with traditional pressure bar (see figure 3), and its hollow section 30 has an oval external cross section, and inner at pressure bar, hollow section is stretched over its whole length range.According to the present invention,, be designed to gap opening according to this opening of Fig. 7 at the preset opening 40 of the upper surface of pressure bar 20.
In addition, can find out from the vertical view of Fig. 7 that two end faces of pressure bar 20 are provided with a jockey 29, are respectively connecting a compressed air source 90 on each jockey.Can adjust the intensity (for for simplicity, not being shown being connected between this device 91 and another compressed air source) of compressed air stream through a device 91 of representing with sketch map.Two jockeys 29 also can only use a unique compressed air source 90.In addition, also can only on the end face of pressure bar 20, preset a jockey 29.
The compressed air of compressed air source 90 gets into hollow section 30 through jockey 29, and gets into the periphery of main drawing area HF through opening 40 by hollow section.At this place, compressed air is the upwards pulling of fiber, dirt and heat in main drawing area.
Arranged a traditional absorption device 80 on the top of drafting system 4, siphoned away the fiber in the drafting system scope, dirt and heat by this device and (see arrow f
1).Moulding according to pressure bar 20 of the present invention can impel fiber, dirt and heat to absorbing device 80 effectively.
In an enforcement pattern according to Fig. 9, preset another opening 50, it makes pressure bar have the function of similar water jet pump.Compressed air that kind when using pressure bar shown in Figure 8 is imported into hollow section 30, outwards derives through opening 40 then.The structure of hollow section 30 can guarantee that air is sucked through opening 50 by zone line, upwards leaves pressure bar 20 through opening 40 then again.
Flow simulating result when being to use open circles pressure bar 20 shown in Figure 10 and 11, wherein, compressed air is sucked main drawing area HF vertically upward, the compressed air among Figure 10 is turned off then, among Figure 11 by open-minded.As can be seen from Figure 10, similar with the situation of Fig. 2, around pressure bar 20, formed several turbulent flows and dead band.When not having air to get into, in the middle of last and between the last front roller 6b, 7b, also formed a dead band (Todzone) (seeing mark), this be since generally speaking the cleaning rod 60 (being used to clean the clad of top roller) of use impel and cause.The particle of from fiber skein FB ', separating out rests in this dead band, and is deposited on the cleaning rod 60.It is pointed out that experimental study and simulation are not arrange (though this device is generally all arranged) of carrying out under the situation of absorbing device on drafting system top on drawing frame.Therefore, problem is at least in order to get rid of the dead band that under the situation that does not have air inlet between the cleaning rod, produces, whether resorption is abundant.
On the contrary; Can find out in Figure 11 how said dead band is excluded; Because the air velocity between last middle roller and last front roller 6b, the 7b in the gap obviously increases, the entering feeding is then separated with higher probability with fiber and dust particle in the airflow flowing that makes progress.This situation is shown in the detail drawing of Figure 12.
The airintake direction that gets into main drawing area HF tilts, and shown in figure 13, like this, the boundary layer of last front roller 7b directly becomes a mandarin and also can improve the separation of dirt, because air-flow can be collected more particle.Should be noted in the discussion above that in this case through changing air inlet angle, do not produce new dead band as far as possible, avoid dirt possibly deposit on the pressure bar 20.
Can clearly be seen that from Figure 11 to 13 when air got into main drawing area HF, pressure bar 20 all was clean with cleaning rod 60.If air gets into main drawing area HF through hollow pressure bar 20, then can not form the dead band.Particle is by carried away by air movement.The cleaning rod 60 (seeing Figure 11) of last middle roller 6b, is not had particle and deposits around purge by air ring, and drafting system keeps clean.Such air flow condition helps absorbing the System Cleaning dirt with drafting system.
Shown in the flow simulating result among Fig. 2-5 and Figure 10-13, not only pass through the geometry design of pressure bar 20, and utilize pressure bar 20 to get into main drawing area HF through air, can improve air and flow.Pressure bar 20 according to the viewpoint optimization of flow imaging is avoided in whole flow region, forming the dead band as far as possible.Shown in Figure 14 is a kind of corresponding possible pressure bar embodiment.The elongated shape of pressure bar 20, the particularly lower surface of its length can reduce directly on fibrous material, to form turbulent flow.The outflow direction of pressure air tilts, and direction is facing to last front roller 7b.In addition, the surface 24 adjacent with last front roller 7b is complementary with its cross section of part circular basically.Therefore produce a kind of windstream that helps separate particles generally.Air gets into main drawing area HF and improves approach stream velocity, and improve proton with kinetic force.Thereby avoid forming the dead band at the position that particle possibly deposit.
Shown in Figure 15 for the varying cross-section of pressure bar 20 of the present invention and corresponding front view.The position of pressure bar 20 is with identical shown in the prior figures.Enforcement pattern among Figure 15 a), c), e) and f), air (representing with arrow) gets into main drawing area HF with a flow inlet angle α (with respect to the horizontal plane being 45 ° here) through several openings side by side.Flow through front roller 7b after the entering especially.Implementing pattern b) in, flow inlet angle is 90 °, and is implementing pattern d) in, the directed air inlet of horizontal plane is to realize through a plurality of openings arranged side by side 41 in addition.
Have only and implement pattern and opening 40 has been shown in a) and has different designs.Seven circular opens arranged side by side 40 are arranged in the diagram of on the left side, three long openings 40 are then arranged in the diagram on the right.Certainly, also can only establish a long opening (see figure 7).For for simplicity, these replacement schemes that can supply select for use are at the enforcement pattern b of Figure 15)-do not illustrate in f).
Implement pattern a) in, top edge is a rounding, and is implementing pattern b)-still keep acute angle in f), as stated, this is favourable on flow imaging.
In addition, according to implementing pattern c), d) and the lower surface of pressure bar f) a recessed arc curve 23 is arranged, it preferably is stretched in the whole length range of pressure bar 20.(should be noted that as if the pressure bar shown in all figure all has identical cross section in its whole length range).On the contrary, according to e) 20 of pressure bars the lower surface 22 of level trend is arranged.The advantage of arc curve 23 is, can obtain long pressure bar shape on the one hand, will reach this advantage of being discussed in the enforcement pattern that combines Fig. 5 of flow section shape preferably like this.Can accomplish also that on the other hand original main drawing area can not shorten because a recessed arc curve 23 is arranged, because that kind possibly brought other shortcoming on the textile technology.Pressure bar 20 followed the function of getting off originally by 25 acceptance of the upstream edge on the lower surface 22 of pressure bar 20.26 of following right hand edges are used for constituting the cross sectional shape of the pressure bar 20 of the wedge that points to front roller 7a, 7b.
The longitudinal section of implementing pattern according to the another kind of pressure bar 20 of the present invention has been shown in Figure 16, the same with Figure 15, for for simplicity, do not provide jockey.A plurality of openings are arranged on the surface above that, and its cross-sectional area terminal point to pressure bar more is more little.In addition, opening has the inclination angle of tending to the pressure bar centre from inside to outside.As another characteristics, opening 40 side of giving vent to anger of (towards draw zone) outwardly has a chamfering 44.Above-mentioned measure has at draw zone and realizes the uniform air-distribution advantage of (air-flow is represented with arrow), thereby can avoid the dead band effectively, and proof can be improved fiber and discharges from draw zone with other particle and hot-air.Above-mentioned measure according to the enforcement pattern of Figure 16 also can realize on a single pressure bar according to the present invention.The cross section of the pressure bar 20 of Figure 16 can adopt different designs according to various embodiment among the figure mentioned above.
In the pressure bar shown in the different figure 20 can concentrate on according to a kind of spinning preparation machine of the present invention (at preliminary draft district or main drawing area), but also can be used as single part,, constitute a part of the present invention particularly as spare part.
Claims (21)
1. in the width range of the draw zone (HF) of a drafting system (4), can turn to a fiber to combine the pressure bar of strip (FB ') between the two jaw lines at draw zone (FB '); It is characterized in that; The jockey (29) that has a connection external compression air source (90) at least; Through at least one hollow section (30) that is connected with at least one jockey (29); And through at least one opening (40) that at least one hollow section (30) is connected with external environment condition, so that utilize compressed air that fiber waste-material and dirt are removed in the scope of draw zone (HF).
2. pressure bar according to claim 1 is characterized in that, at least one hollow section (30) is designed to longitudinally extending cavity in pressure bar (20).
3. pressure bar according to claim 1 and 2 is characterized in that, on the wall of pressure bar (20), is provided with an opening (40) at least, and hollow section (30) is linked to each other with external environment condition.
4. pressure bar according to claim 3 is characterized in that, hollow section (30) cross sectional shape is along vertical variation of pressure bar (20).
5. pressure bar according to claim 4 is characterized in that, the cross sectional shape of hollow section (30) is along with from the increase of the distance of jockey (29) and attenuate.
6. pressure bar according to claim 1 is characterized in that, on its two end faces, respectively establishes a jockey (29), can use compressed air through these two jockeys respectively.
7. pressure bar according to claim 1 is characterized in that, opening (40) can be designed conglobate, polygonal or slot-shaped.
8. pressure bar according to claim 1 is characterized in that, a plurality of adjacent openings (40) are arranged in the width range of draw zone (HF) basically.
9. pressure bar according to claim 1 is characterized in that, has at least two openings (40) to have the different cross-sectional areas area.
10. pressure bar according to claim 1 is characterized in that, the centre of the cross-sectional area that has several openings (40) at least from the end face of pressure bar to pressure bar diminishes gradually.
11. pressure bar according to claim 1 is characterized in that, has at least several openings (40) in the side of giving vent to anger a chamfering (44) or rounded to be arranged.
12. pressure bar according to claim 1 is characterized in that, has several openings at least from inside to outside towards the intermediate, inclined of pressure bar.
13. pressure bar according to claim 1 is characterized in that, opening (40) stretches in the whole width range of draw zone (HF).
14. pressure bar according to claim 1 is characterized in that, having an opening (40) at least is adjustable on the orientation with respect to drafting system (4).
15. pressure bar according to claim 1 is characterized in that, at least one opening (40) flow inlet angle (α) of horizontal plane relatively is 0 ° to 90 °, and wherein angle (α) opens descending roller (7b).
16. spinning preparation machine is furnished with a drafting system (4), this drafting system have at least one by two rollers to (6a, 6b; 7a, 7b) draw zone (HF) that constitutes, it is characterized in that, in draw zone (HF), arrange a pressure bar (20) that meets one of above-mentioned all claim at least.
17., it is characterized in that having a device (91) to be used for adjusting the intensity that compressed air loads according to 16 described spinning preparation machines in the claim.
18., it is characterized in that the intensity that compressed air loads can adapt with the speed of producing and/or the pollution level of machined material according to 17 described spinning preparation machines in the claim.
19. according at least one described spinning preparation machine of claim in the claim 16 to 18; It is characterized in that; Pressure bar (20) is to arrange like this in main drawing area (HF); Promptly when the width of draw zone changed, under the equidistant situation that is retained to middle roller (6a, 6b), pressure bar together moved.
20. spinning preparation machine according to claim 16 is characterized in that, above draw zone, absorbs device (80) for preset one, is used for absorbing fiber waste-material and/or the dirt that in draw zone (HF), generates.
21. be used for getting rid of in the draw zone of spinning preparation machine the method for fiber and/or dirt, wherein this spinning preparation machine comprises a drafting system (4), this drafting system have at least one by two rollers to (6a, 6b; 7a, 7b) draw zone (HF) that constitutes; It is characterized in that; In draw zone (HF), be furnished with pressure bar (20) according to one of claim 1 to 15; Through at least one opening (40) on the said pressure bar (20) compressed air is sent in the draw zone (HF), in the scope of draw zone (HF), obtained and take away fiber waste-material and/or dirt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004026758.8 | 2004-05-29 | ||
| DE102004026758 | 2004-05-29 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110330319.7A Division CN102443888B (en) | 2004-05-29 | 2005-05-30 | Pressure rod and spinning preparation machine with the pressure rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1702208A CN1702208A (en) | 2005-11-30 |
| CN1702208B true CN1702208B (en) | 2012-01-04 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510076078 Expired - Fee Related CN1702208B (en) | 2004-05-29 | 2005-05-30 | Pressure rod and spinning preparation machine with the pressure rod |
| CN201110330319.7A Expired - Fee Related CN102443888B (en) | 2004-05-29 | 2005-05-30 | Pressure rod and spinning preparation machine with the pressure rod |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110330319.7A Expired - Fee Related CN102443888B (en) | 2004-05-29 | 2005-05-30 | Pressure rod and spinning preparation machine with the pressure rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1702208B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104911756A (en) * | 2015-06-09 | 2015-09-16 | 安徽华茂纺织股份有限公司 | Fore-trench rear-wheel type spinning back-drafting-zone pressure bar |
| CN110172760B (en) * | 2019-03-08 | 2020-11-10 | 东华大学 | Combing spinning method with combing parallel process |
| CN116163038B (en) * | 2023-03-27 | 2023-07-25 | 无锡万诺智能科技有限公司 | Aggregation spinning device and spinning method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3016409A1 (en) * | 1980-04-29 | 1981-11-05 | W. Schlafhorst & Co, 4050 Mönchengladbach | Sliver drafting system - has suction channel in main draft zone to extract dust and short fibres |
| CN87208807U (en) * | 1987-06-04 | 1988-04-06 | 中国纺机总公司设计研究所 | Dustproof pressure bar |
| CN2075661U (en) * | 1989-02-21 | 1991-04-24 | 葛估兴 | Radius curve pressure stick of drawing frame graduated curvature |
| EP0602388A1 (en) * | 1992-12-17 | 1994-06-22 | Rieter Ingolstadt Spinnereimaschinenbau AG | Pressing rod |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3304584A (en) * | 1964-10-07 | 1967-02-21 | Maremont Corp | Drafting mechanism |
| CN85201569U (en) * | 1985-05-13 | 1986-11-26 | 江苏省纺织研究所 | Pressure stick pulling device with combined pressing for cotton drawing frame |
| CN2070303U (en) * | 1990-06-09 | 1991-01-30 | 陈乃族 | Drawing frame |
| CN2139942Y (en) * | 1992-10-23 | 1993-08-11 | 柳志强 | Pressure stick |
| DE50101978D1 (en) * | 2000-11-28 | 2004-05-19 | Truetzschler Gmbh & Co Kg | Method and device on a spinning machine for drawing a textile fiber structure, e.g. made of cotton, chemical fibers and. like. |
-
2005
- 2005-05-30 CN CN 200510076078 patent/CN1702208B/en not_active Expired - Fee Related
- 2005-05-30 CN CN201110330319.7A patent/CN102443888B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3016409A1 (en) * | 1980-04-29 | 1981-11-05 | W. Schlafhorst & Co, 4050 Mönchengladbach | Sliver drafting system - has suction channel in main draft zone to extract dust and short fibres |
| CN87208807U (en) * | 1987-06-04 | 1988-04-06 | 中国纺机总公司设计研究所 | Dustproof pressure bar |
| CN2075661U (en) * | 1989-02-21 | 1991-04-24 | 葛估兴 | Radius curve pressure stick of drawing frame graduated curvature |
| EP0602388A1 (en) * | 1992-12-17 | 1994-06-22 | Rieter Ingolstadt Spinnereimaschinenbau AG | Pressing rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1702208A (en) | 2005-11-30 |
| CN102443888A (en) | 2012-05-09 |
| CN102443888B (en) | 2015-06-10 |
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Granted publication date: 20120104 Termination date: 20190530 |