CN1776039A - Yarn-withdrawing funnel of spinning machine - Google Patents
Yarn-withdrawing funnel of spinning machine Download PDFInfo
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- CN1776039A CN1776039A CN 200510120178 CN200510120178A CN1776039A CN 1776039 A CN1776039 A CN 1776039A CN 200510120178 CN200510120178 CN 200510120178 CN 200510120178 A CN200510120178 A CN 200510120178A CN 1776039 A CN1776039 A CN 1776039A
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- doffing tube
- doffing
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention relates to a thread take-off nozzle (1) for spinning machines, especially rotor type open-end spinning machines, used for guiding a spun yarn while taking off the yarn from the spinning part, and a manufacturing method of the thread take-off nozzle (1). The thread take-off nozzle (1) is characterized by consisting of at least two sections (2, 3), the first section (2) having a thread guiding surface and the second section (3) being a holder for the first section. When connecting two sections (2, 3), at least one section is connected by molding onto the other with direct, large-area, heat-conducting contact between the sections.
Description
Technical field
It is used to the present invention relates to spinning machine, and particularly the used a kind of doffing tube of rotor spinning machine is used for guiding the yarn that spun from employed spinning bobbin when doffing.In addition, it is used to the invention still further relates to a kind of spinning machine, particularly the manufacture method of the used doffing tube of rotor spinning machine.
Background technology
The doffing tube that spinning machine is used particularly is used in the used doffing tube of rotor spinning machine, is employed high load capacity member on the current spinning machine.On rotor spinning machine, the yarn speed of drawing of 150,000 rev/mins rotational speed of rotor and 250 meters/minute is very common, under a stable condition even substantially exceed this numeral.The result is, is used for doffing tube that resultant yarn is pulled out, born very large load.Just because of this, according to existing technical merit, for having use up diversified effort the service life that prolongs doffing tube.But all known measures have reached its limit mostly, further prolong the service life of doffing tube, have brought pressure for the spinning process characteristic.When increasing the service life each time, require the spinning process characteristic to remain unchanged as far as possible, or even may improve to some extent.Therefore the design of a lot of different ceramic doffing tubes just arranged, wherein had for example integrally-builtly, combining structure has also been arranged.In combining structure, ceramic segment generally have one bonding or be pressed into the Nanel of steel or aluminium supporter.In addition, the known version that also has other, wherein, bonding or be pressed into ceramic sleeve or steel bushing in addition at the shank of nozzle supporter, for example the disclosed version of patent documentation EP0445554B1 is exactly like this.
The shortcoming of these known workarounds is that for example, for some fibrous material and process velocity, the capacity of heat transmission of this method is always too little.Therefore, the heat that produces in spinning process can not fully be derived by the surface of doffing tube, thereby higher temperature occurs at this place.Such temperatures involved spinning process and processed fiber had a negative impact, high temperature does not wish to take place.
Another shortcoming that several in addition enforcement patterns are displayed is, forms certain clearance between Nanel and the nozzle supporter, may gather scale in these gaps.Therefore spinning process may break down, and the yarn qualities of producing is degenerated.
At last, the method for known manufacturing doffing tube, for example bonding or be pressed into the method for Nanel, its production cost is higher relatively.
Summary of the invention
Therefore, task of the present invention is to propose a kind of doffing tube and manufacture method thereof, and this doffing tube not only has sufficient capacity of heat transmission, and structure is very close to each other, and cheap for manufacturing cost.
In order to solve above-mentioned task, doffing tube according to the present invention is characterised in that, it has two sections at least, wherein first section has yarn guiding surface, second section supporter that is designed to first section, and when connecting two sections, there is in two sections one section contacting of direct, large-area and energy heat conduction arranged during with another section bonding and molding at least.Wherein importantly, adopt a kind of soft material or pass through to heat the material of after-tack, another kind of material is coated, thereby form complete doffing tube.Usually, the section that contacts with yarn is hard section, with another section of its bonding and molding be soft section.Do not have separation layer when therefore directly contact takes place, for example more is the adhesive separation layer.Therefore can realize the heat conduction well.
By a section in two sections is casted on its that section to usefulness, can form connection very close to each other.Therefore, can not dirt take place on doffing tube or in its gap or fiber gathers.Except seldom having dirt, another very important advantage is, to capacity of heat transmission or heat conduction to another section of usefulness tangible improvement arranged from a section.By existing technical merit, or adopt method of press-fitting between two sections, to form the slit, or adopt the bonding connection method between two sections, to cause isolation accordingly; Different therewith is that the present invention can reach good especially heat-conducting effect by the directly contact of surface with two sections big of doffing tubes.
Particularly second section is cast on first section.Like this, for example the Nanel with yarn guiding surface can constitute first section, will be casted into as second section supporter on this first section.In this case, be convenient to especially make first section with resistant to elevated temperatures especially ceramic material, the liquid material with supporter successfully is casted on first section then, can not cause that resistant to elevated temperatures first section changes.
Mainly be that second section is adopted a kind of material of casting, for example adopt plastics or a kind of cast metal in this respect.Now known have a lot of plastics to be particularly suitable for pressure injection-moulded method processing.For example, can process like this, promptly earlier make Nanel, and it is put into a model as the inserts clamping, carry out pressure injection-moulded sealing then with pottery.Pressure injection-moulded sealing also can adopt the cast metal to replace, for example with the alloy that contains aluminium, zinc or copper.In addition, first section also can be adopted different Heat Conduction Materials to make, for example can be made of a steel.For example aluminium oxide, carborundum or aluminium nitride etc. have the ceramic material of good capacity of heat transmission, are suitable for a lot of application scenarios.
Usually, if the material that adopts has high capacity of heat transmission, advantageous particularly then is because so can obviously reduce the temperature of doffing tube upper surface.Reduce temperature can be correspondingly to the spinning process characteristic generation favorable influence of doffing tube, because processed fiber thereby obtain better protection.
Predesignate in another preferable enforcement pattern of the present invention, first section is combining structure, second section at least in part with first section all part bonding and molding.This is meaningful especially in doffing tube for anti-wear of for example very long handle shape.In this case, Nanel and anti-wear can be prefabricated into two independent parts.According to this enforcement pattern of the present invention, two parts can relative fixed be at least on the single supporter.In advance mutually after the relative positioning, bonding and molding on two parts of supporter and first section for example adopts casting, plastic-blasting or sintering method bonding and molding.Its constitutes second section, and two parts of first section are not sealed with not staying the slit, thereby each section or all parts is combined into the doffing tube of an integral body.
In order to guarantee that each section is firm especially in conjunction with getting each other, predesignate at least one section one or more grooves are set, groove particularly is set diametrically, rigidly fix to cause.Radially be for the longitudinal axis of doffing tube.By designing protuberance diametrically, can be first section or its part by on second section that is rigidly fixed in as support designs.Wherein, protuberance can be arranged selectively diametrically outwardly or inwardly.Under each situation, protuberance is coated or tamps by employed casting section fluent material all in casting forward or backwards, and constitutes one and rigidly fix.If protuberance is in circumferential interruption forward or backwards, promptly adopt circulation and with contact-making surface in the corresponding design of this direction, then can hinder first section axial rotatablely moving around its longitudinal axis.
If have at least a section to adopt thin-walled design in two sections, proved to the thermal conductivity advantageous particularly.Generally speaking, the advantage of thin-wall construction is that heat is easier can derive by member.Particularly, this point is not only applicable to first section thin-wall construction, and is applicable to second section thin-wall construction.But particularly advantageous is first section employing thin-wall construction because first section since yarn fast through producing a large amount of heats.These heats are by adopting first section of thin-walled to be delivered to second section rapidly, and in this section of doffing tube heat can not take place and accumulate.In addition, can also design the thin-walled of second section or supporter thinlyyer according to doffing tube of the present invention than hitherto known doffing tube.She Ji doffing tube is not only saved material and is improved thermal conductivity like this, and the cost of foundry goods is starkly lower than known bonding or press fit joining method.
Another preferable enforcement pattern of the present invention has adopted improves heat conducting design, has a section to be provided with fin in two sections.Predesignate simultaneously, for example fin is arranged on first section, and extends to second section direction.When second section of plastic-blasting, fin is got up by second section coating, has increased utilizable area of dissipation significantly.Fin also can be arranged on second section in contrast.
In order to optimize the function of doffing tube, that is to say that for the heat conductivity that improves member with improve the spinning process characteristic, if the contact-making surface between each section of assembled state does not have the slit, this has proved very favorable.If second section be cast in or plastic-blasting on first section, just relate to the contact-making surface between first section and second section, realize that above-mentioned requirements is relatively easy.In described enforcement pattern, can be with simple especially method, the casting by being fluid state at first or the material of plastic-blasting section are realized seamless state.But,, need then at first to guarantee that two contact-making surfaces between the part accomplish seamless if first section for example is to be made of two prefabricated parts.This point can for example be accomplished like this, is promptly sealing before first section with second section plastic-blasting, with two parts of first section of pressure (being preferably in axially) mutual extrusion.
In addition, start the sort of method of mentioning at this paper, it is characterized in that, at first make a section of the doffing tube of a plurality of sections formations, then by a casting process, by mutual plastic-blasting, by a sintering circuit or pass through cold machine-shaping, another section is connected on first section, is joined together with the section of making earlier.
Another kind of favourable continuation shaping scheme regulation according to the inventive method, at least one section at first prefabricated each section that constitutes by a plurality of parts, the mutual relative positioning of each part, then with bonding and molding on first section at least the another one section mutually combine.
Description of drawings
Below, the embodiments of the invention shown in further specify above-mentioned and some other advantage and feature of the present invention with reference to the accompanying drawings.In the accompanying drawing:
Fig. 1 is the oblique shaft side figure according to doffing tube of the present invention;
Fig. 2 is the axial, cross-sectional view according to Fig. 1 doffing tube of the present invention;
Fig. 3 is second axial, cross-sectional view of implementing pattern of doffing tube of the present invention; And
Fig. 4 is the longitudinal section view according to Fig. 3 doffing tube of the present invention.
The detailed description of preferred embodiment
It shown in Fig. 1 the oblique shaft side figure of seeing from the front upper place according to doffing tube 1 of the present invention.The front end that doffing tube 1 does not illustrate in figure has a Nanel 2, is supporter 3 around it.In the rear end of doffing tube 1, can see one anti-wear 4.Between Nanel 2 and anti-wear 4, show first edge section 5.On this edge section 5, the Nanel 2 that constitutes first section meets with the supporter 3 that constitutes second section.Second edge section 6 is in supporter 3 and anti-wear 4 intermediate location.In addition, Nanel 2 is provided with groove 7, and it is used to controlledly influence the motion of the yarn of crossing.
Show the axial, cross-sectional view of the doffing tube of mistake described above among Fig. 2 once more.Its left side is a Nanel 2, and it adopts a kind of pottery to make in this enforcement pattern.This pottery mainly is energy heat conduction especially, that is to say that it has extra high thermal conductivity factor.In addition, Nanel 2 should be designed to thin-walled as far as possible, to guarantee to realize the optimal heat conduction.In sectional view, can obviously see the groove 7 that designs for the spinning process characteristic that produces doffing tube.Nanel 2 is used as foundry goods and the supporter 3 that designs is sealed.In this enforcement pattern, selected the material of a kind of cast metal for use as supporter 3.Also can use plastics to substitute the cast metal at this place.Here also be that the good plastics of heat conduction are especially for good.In this enforcement pattern, the factor that the capacity of heat transmission of doffing tube is had especially positive influences is, on the contact-making surface 8 between supporter 3 and the Nanel 2, exist large-area with directly contact.There are not harmful space or separation layer (for example bond layer) to hinder the heat conduction.When needing, the fin 9 that dots among the figure can be set also,,, increase heat conducting surface area after Nanel 2 injection mouldings are sealed because fin extend in the supporter 3 with the conduction of further improvement heat.
The invention process pattern showed and thought highly of the doffing tube that constitutes with a plurality of parts, and wherein, first section is made of Nanel 2 and anti-wear 4 of being connected on this horn mouth.In this enforcement pattern, second section of doffing tube 1 is made of supporter 3.When making the doffing tube 1 that constitutes with a plurality of parts, at first make Nanel 2 and anti-wear 4, and location relative to each other, then in one procedure, the liquid material by use supporter 3 carries out injection moulding and seals or cast to seal and be bonded into a unit.In order to realize Nanel 2 and anti-wear 4 correct each other relative positioning, the two respectively has a flat end face 10, can guarantee correct location in the axial direction.In addition, in order to guarantee, for example in casting or injection moulding operation, can be fastened to two parts on the plug in radial location.Particularly in casting or injection moulding operation, should apply corresponding axial compressive force to Nanel 2 or supporter 3, so that two parts are compressed and guarantee seamless bearing-surface mutually.For unexpected disengaging the after making anti-wear 4 to be unlikely to connects, can groove 11 be set radially, allow the material of supporter 3 when injection moulding is sealed or cast, be filled in the groove.Between supporter 3 and anti-wear 4, produce whereby and be rigidly connected.Except the structure that first section is made of a plurality of parts shown in the figure, also might be designed to an integrated member to Nanel 2 and anti-wear 4 fully.According to the present invention, implement also can correspondingly be injection molded into or be cast as supporter 3 again on the pattern at such one.In addition, on the enforcement pattern according to Fig. 2, anti-wear 4 slightly larger in diameter in stenosis be in the minimum diameter of Nanel 2, with in the case of necessary, guarantees that derivative yarn can not run on a certain protuberance in the doffing tube scope.In addition, in the scope of end face 10, be provided with the hypotenuse 12 of a rotation, equally also can avoid any protuberance of anti-wear 4 to be inserted in the yarn path.
Embodiment according to Fig. 3 is second axial, cross-sectional view implementing pattern of doffing tube 1 of the present invention, and cross-sectional layout is equivalent to the A-A cutaway view among Fig. 4.This doffing tube 1 is made up of three parts, and wherein, Nanel 2 and anti-wear 4 constitute first section, and supporter 3 constitutes second section.Implement in the pattern at this, anti-wear 4 is designed to short sleeve, is provided with four blades 13 in sleeve, every 90 ° one.Blade 13 is to guarantee that certain yarn qualities is necessary.Under other application scenario, it is rational that use does not have the doffing tube of blade 13.Such doffing tube has correspondingly been installed anti-wear 4 an of polishing.Keep reliably having opened the groove 11 of a notch shape respectively anti-wear 4 upper and lower in the supporter 3 shown in the figure in order to make anti-wear 4, this groove tamps fully with the supporter 3 of casting.Combine with the slope 14 that is located at anti-wear 4 right side, can guarantee that in the supporter 3 anti-wear 4 avoids the motion that takes place not wish to take place, both comprised axially-movable, also comprise circumferential movement.Supporter 3 shown in the figure almost is stretched over the whole length range of doffing tube 1, and two parts of first section of seamless combination.Combine with a top embodiment, obviously as seen, the geometry of each section counts up to entirely with the part of each section can satisfy relevant requirement, can not limit or obliterate every advantage of the present invention.
At last, Fig. 4 is a longitudinal section view according to Fig. 3 doffing tube of the present invention.In this view, can find out significantly again, in the design of anti-wear 4 notch shape groove 11 and the effect that prevents axial rotation that interrelates therewith.Can also find out significantly that anti-wear 4 seamless combination in supporter 3 formed a king-sized effective heat-conducting area at second edge section, 6 places thus.She Ji doffing tube 1 has outstanding heat conductivility like this, thereby also has good especially spinning process characteristic and long especially service life.
In addition, the present invention is not limited to illustrated embodiment.The present invention can have diversified variation in the scope of every claim.Can adopt multiple can the casting to make supporter 3 with the alloy material of compression casting.In addition, also can select for use multiple suitable plastics to make supporter 3.In addition, can also use diversified method, rigidly connected quantity and mode between conversion supporter 3 and Nanel 2 or anti-wear 4.The part of doffing tube 1, for example anti-wear 4 also can be designed to nozzle shank sleeve, and makes with the steel that quenches so that can bear fully subsequently for generate that another section cast or the operation of injection moulding in the high temperature that produced.
Claims (16)
1. spinning machine, the used a kind of doffing tube (1) of rotor spinning machine particularly, be used for when doffing, drawing resultant yarn from employed spinning member, it is characterized in that, doffing tube (1) has two sections (2,3) at least, wherein, first section (2) have yarn guiding surface, second section supporter (3) that is designed to first section, and when connecting two sections (2,3), contacting of direct, large-area and energy heat conduction when being arranged in two sections (2,3) at least with another section (2,3) bonding and molding, a section arranged.
2. require described doffing tube (1) according to aforesaid right, it is characterized in that, have a section to be cast in another section (3,2) in two sections (2,3), particularly second section (3) are cast on first section (2).
3. according to the described doffing tube of one of above-mentioned all claim (1), it is characterized in that second section (3) are made of a kind of material of casting, particularly constitute by a kind of plastics or a kind of cast metal.
4. according to the described doffing tube of one of above-mentioned all claim (1), it is characterized in that employed material has high capacity of heat transmission.
5. according to the described doffing tube of one of above-mentioned all claim (1), it is characterized in that first section (2,4) are made of a plurality of parts, second section (3) at least in part with all part bonding and moldings of first section (2,4).
6. according to the described doffing tube of one of above-mentioned all claim (1), it is characterized in that, go up design one or more grooves (11), rigidly fix, particularly rigidly fixing radially to cause at least one section (2,3,4).
7. according to the described doffing tube of one of above-mentioned all claim (1), it is characterized in that at least one section employing thin-wall construction in each section (2,3,4).
8. according to the described doffing tube of one of above-mentioned all claim (1), it is characterized in that having a section to be provided with fin (9) in each section (2,3,4).
9. according to the described doffing tube of one of above-mentioned all claim (1), it is characterized in that under assembled state, the contact-making surface (8) between each section (2,3,4) is seamless.
10. it is used to make spinning machine, and particularly the method for the used doffing tube of rotor spinning machine (1) is characterized in that, at first makes the section (2,4) by a plurality of sections doffing tubes that constitute (1), then with on another section (3) bonding and molding to the first section (2,4).
11. require described method, it is characterized in that another section (3) engages with the section of at first making (2,4) through one casting process according to aforesaid right power.
12. according to one of above-mentioned every right power requirement described method, it is characterized in that, make a section in each section (2,3,4) that constitutes by a plurality of parts (2,4) in advance, and, interconnect with other at least one section (3) then the mutual relative positioning of relevant section (2,4).
13., it is characterized in that the synthetic relevant section of casting (2,3,4) wherein particularly is casted into a section (3) on another section (2,4) according to one of above-mentioned every right power requirement described method.
14., it is characterized in that the synthetic relevant section of injection moulding (2,3,4) wherein particularly is injected into a section (3) on another section (2,4) according to one of above-mentioned every right power requirement described method.
15. according to one of above-mentioned every right power requirement described method, it is characterized in that, relevant section (2,3,4) mutually combined with a kind of sintering process.
16. according to one of above-mentioned every right power requirement described method, it is characterized in that,, each section (2,3,4) mutually combined by at least one section in each section (2,3,4) is carried out cold machine-shaping.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004055484 | 2004-11-17 | ||
| DE102004055484.6 | 2004-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1776039A true CN1776039A (en) | 2006-05-24 |
Family
ID=36578717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510120178 Pending CN1776039A (en) | 2004-11-17 | 2005-11-10 | Yarn-withdrawing funnel of spinning machine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1776039A (en) |
| AT (1) | AT501063A2 (en) |
| CZ (1) | CZ302105B6 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296395A (en) * | 2010-06-25 | 2011-12-28 | 立达英格尔斯塔特有限公司 | Thread draw-off nozzle |
| CN104114757A (en) * | 2012-02-08 | 2014-10-22 | 里特机械公司 | Yarn draw-off unit of a rotor spinning machine and method for producing a yarn with the aid of a rotor spinning machine |
| CN107338522A (en) * | 2016-08-26 | 2017-11-10 | 桐乡守敬应用技术研究院有限公司 | A kind of rotor spinning Yarn guide device |
| CN114703569A (en) * | 2022-04-24 | 2022-07-05 | 南通佳利园纺织品有限公司 | Yarn drawing nozzle for open-end spinning device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3419300A1 (en) * | 1984-05-24 | 1985-11-28 | Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt | Yarn draw-off tube |
| DE4007517A1 (en) * | 1990-03-09 | 1991-09-12 | Schubert & Salzer Maschinen | OPENING SPINNING DEVICE |
| US5265406A (en) * | 1990-03-09 | 1993-11-30 | Schubert & Salzer Maschinenfabrik Ag | Open-end spinning device |
| DE19738382B4 (en) * | 1997-09-03 | 2006-03-09 | Saurer Gmbh & Co. Kg | off nozzle |
| DE10224205A1 (en) * | 2002-05-31 | 2003-12-11 | Schlafhorst & Co W | Channel plate adapter for an open-end spinning device |
-
2005
- 2005-09-27 AT AT15862005A patent/AT501063A2/en not_active Application Discontinuation
- 2005-11-10 CN CN 200510120178 patent/CN1776039A/en active Pending
- 2005-11-14 CZ CZ20050707A patent/CZ302105B6/en not_active IP Right Cessation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296395A (en) * | 2010-06-25 | 2011-12-28 | 立达英格尔斯塔特有限公司 | Thread draw-off nozzle |
| CN102296395B (en) * | 2010-06-25 | 2016-05-25 | 立达英格尔斯塔特有限公司 | Thread draw-off nozzle |
| CN104114757A (en) * | 2012-02-08 | 2014-10-22 | 里特机械公司 | Yarn draw-off unit of a rotor spinning machine and method for producing a yarn with the aid of a rotor spinning machine |
| CN104114757B (en) * | 2012-02-08 | 2017-02-22 | 里特机械公司 | Yarn draw-off unit of a rotor spinning machine and method for producing a yarn with the aid of a rotor spinning machine |
| CN107338522A (en) * | 2016-08-26 | 2017-11-10 | 桐乡守敬应用技术研究院有限公司 | A kind of rotor spinning Yarn guide device |
| CN114703569A (en) * | 2022-04-24 | 2022-07-05 | 南通佳利园纺织品有限公司 | Yarn drawing nozzle for open-end spinning device |
| CN114703569B (en) * | 2022-04-24 | 2022-12-23 | 南通佳利园纺织品有限公司 | Yarn drawing nozzle for open-end spinning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ302105B6 (en) | 2010-10-13 |
| CZ2005707A3 (en) | 2006-07-12 |
| AT501063A2 (en) | 2006-06-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20060524 |