EP1526194A2 - Spinnmaschine mit einer Verdichtungseinrichtung - Google Patents
Spinnmaschine mit einer Verdichtungseinrichtung Download PDFInfo
- Publication number
- EP1526194A2 EP1526194A2 EP04018817A EP04018817A EP1526194A2 EP 1526194 A2 EP1526194 A2 EP 1526194A2 EP 04018817 A EP04018817 A EP 04018817A EP 04018817 A EP04018817 A EP 04018817A EP 1526194 A2 EP1526194 A2 EP 1526194A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- spinning machine
- roller
- rollers
- compression element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/56—Supports for drafting elements
- D01H5/565—Top roller arms
Definitions
- the invention is concerned with the spinning of yarn or threads during compression the fiber flow just prior to the imparting of the rotation, i. with the so-called Compaction spiders.
- Compaction spiders There are in particular new components or assemblies proposed for use in a compaction spinning process.
- the invention comprises a method, a spinning machine, assemblies of such a machine and components thereof, in particular spare parts or retrofit parts, regardless of whether expressly claimed below or not.
- Compaction spinning also called compact spinning
- ring spinning is now part of the business or further development of ring spinning, to the basic knowledge of the expert - see e.g. Melliand Textile Reports 1-2 / 2003, page 40 "Uster Statistics for compact yarns”.
- the Procedure is not fundamentally limited to ring spinning, but so far only been practically introduced in this area.
- the problem is the effort to Creating an optimal product. Therefore, ways are sought to at least to achieve a partial result with reduced effort. In particular, it is investigated whether it is "mechanical" without the creation of additional pneumatic compression forces, can cause a certain compaction effect.
- a material template 100 according to FIG. 1 consists of a conventional spinning machine either from a jug or roving bobbin.
- the jug becomes a fiber structure 120 fed to the drafting system.
- roving is from Extracted circumference of the spool.
- Via a deflecting device 130 comes the fiber strand, namely the roving or sliver, in the region of a drafting system 140th
- the drafting system comprises several pairs of rollers partly equipped with straps.
- the fiber strand 120 is sandwiched between the first and second roll pairs 115a and 115b only weak and between the second and subsequent pair of rollers 115c strongly distorted on a pinch roller 170 and a compression element 160, the default ratio can exceed 100 in total.
- the drafting unit 140 leaving fiber structure has a width, the decreases during compaction.
- a compression zone 190 of the device 180 may be an air guide 110, preferably in the form of a screen, according to DE 4426249 B are provided.
- a blocking roller 111 is provided at the end of the compression zone, which is pressed against the compression element 160 and so the rotation distribution limited by a spinning device 112 forth against the material flow direction.
- a suction element 113 which at a suction device 114 is connected.
- the compression element 160 is preferably a perforated rotating drum, while the suction member 113 has a suction opening in the region of the perforation.
- the diameter of the drum considerably greater than the diameter of the inlet cylinder in the inlet pair 115a and the Middle cylinder in the 115b in the drafting system 140. It follows that to carry out the pneumatic compression according to the principle shown in Figure 1 the Drafting unit 140 specially designed for this purpose and with suitable additional equipment (a suction system) must be provided.
- thread guide 150, 150 ' which in the case of a ring spinning device according to the yarn balloon of the yarn 161 Limit figure 1 to the top.
- the top rollers (also called pressure rollers) of the drafting system can alone alone or in combination with other elements, such as, for example, the suction element 113, perform traversing movements.
- the yarn 161 by means of a rotor 117th on a ring which is mounted on a ring frame 118, by the rotation of a Spindle 119 wound on a yarn package 201 with drive.
- the height of the yarn package is determined by the range of movement of a ring frame drive, the Ring frame 118 offset in the vertical direction according to Figure 1 up and down.
- the compression element 160 has a lateral surface as a moving surface 121, with openings 122 leading into the interior of the compression element 160.
- the fiber structure 120 is guided between the compression element 160 and the pinch roller 170, wherein the pinch roller 170 runs on the moving surface 121. It forms with the moving surface a contact line (also called nip line) 123.
- the pinch roller 170 follows the locking roller 111, which also rolls on the moving surface 121. It also forms a contact line (clamping line) 124 with the moving surface 121. There is a predetermined distance x between the two clamping lines 123 and 124.
- the upper rollers of the drafting system 140 and the locking roller 111 are in practice from a so-called loading arm (not shown in Figs. 1 and 2). Low-load arms are very well known in spinning machine construction for many years - a Example is shown in SKF, DE 4419125 A.
- FIG. 3 is a stretching device with only one default field.
- the intake device consists of the cylinder 1 and the pressure roller 2, which together form a gap which is closed on all sides, through which the fiber structure 11 move in the default field (zone a, Figure 4) got to.
- the fiber structure is between the collection device of a trigger device, consisting of the cylinder 3 and the pressure roller 4 stretched, wherein the fibers be pulled by a compressor 10,12,13.
- the stretching device obviously works without fiber guide straps.
- An additional pressure roller 5 cooperates with the cylinder 3 to form a nip line B form.
- the surfaces of the pressure rollers 4 and 5 are elastic Coating provided.
- a compressor 14 Between the pressure rollers 4 and 5 is a compressor 14. If the fiber material is detected by the trigger, it receives their Speed and gets stretched. The stretched fiber strand winds around the Cylinder 3 and enters the compression region (zone b, Fig. 4), where during transport via the compressor 14, the compression takes place. This compression takes place between the Points A, B where the pressure rollers contact the cylinder 3. The compacted material arrives at the delivery device, consisting of the cylinder 3 and pressure roller. 5
- FIG. 5 schematically shows a first embodiment of the present invention, wherein FIG the embodiment according to Figures 1 and 2 adapted to the concept of Figures 3 and 4 has been. Because the diameter of the cylinder 166 is relatively large and the distance x is correspondingly long, the arrangement of the elements on the delivery roller 3 in the figure 3 are taken virtually unchanged in the figure 5 - the compressor between the outlet roller 170 and the locking roller 111 is therefore also in the figure 5 with the reference numeral 14 has been indicated.
- the loading arm 141 is indicated schematically.
- supports 142 carries the arm 141, the upper or pressure roller 115 of the roller pair 115b (see Fig. 1), the Pinch roller 170 and the locking roller 111.
- the arm 141 also carries the compressor 14 and keeps it in contact with the surface 216 of the cylinder 166.
- This cylinder has no suction 113 or breakthroughs 122 (see Fig. 2) on, but he is to be formed as a solid cylinder, which can be provided with a corrugation (Kannelur) 226.
- the pinch roller 170 and the locking roller 111 form with the surface 216 each have a nip 123 and 124th
- FIG. 1 requires a special one Drawing frame construction. It is correspondingly difficult to existing ring spinning machines to retrofit with the necessary elements - it's more of a machine rebuild required to the existing machine for performing compaction spinning adapt. Therefore, an alternative system has already been developed which more suitable for retrofitting. This system will first be described with reference to FIGS. 6 and 7 explains.
- the pressure roller unit 303 consists of two Druckwalzenzwillingen 305 and 306 and a the Pressure roller twins 305 and 306 supporting bracket 304.
- Each of the two pressure roller twins 305 and 306 includes a common axis 307 or 308 for two pressure rollers 309 and 310 or 311 and 312 arranged thereon
- Axes 307 and 308 are rotatably mounted, each pressure rollers arranged thereon 309, 310 and 311, 312 rotate together with their axes 307 and 308, respectively.
- Each pair of printing rollers 305, 306 is thus two mutually adjacent spinning stations assigned, so that in each case a pressure roller unit 303 two adjacent Spinning positions is assigned.
- In the machine longitudinal direction is a variety of spinning stations and thus pressure roll units arranged side by side.
- the drafting device 301 is limited by a pair of output rollers, which in addition to the aforementioned pressure roller 309 and 310 in the machine longitudinal direction continuous driven sub-cylinder 316 contains.
- the lower cylinder 316 is thus together with the pressure roller 309 of the spinning station 13, with the pressure roller 310, however, associated with the spinning station 14.
- the delay zone 18 is followed by a so-called compression zone 20 downstream Leaving only the spin rotation introduced into the resulting thread 27 becomes.
- compression zone 20 is the stretched, but still spin-rotation-free Fiber structure 19 laterally summarized, so that he after passing through a Compaction zone 20 in the direction of transport A delimiting supply terminal line 321 no Spider triangle forms.
- the delivery nip 321 acts against the one to be issued Spin rotation as a spin stop.
- the resulting thread 27 in the delivery direction B a swirl member, not shown, for example, a ring spindle fed, which gives the thread 27 the required spin twist.
- the delivery nip 321 is formed by pressing the respective second pressure roller 311 or 312 to a stationary suction channel 322, as standing under negative pressure Hollow profile is formed and over a plurality of spinning stations, for example extends over a machine section. In the machine longitudinal direction is thus a variety arranged by suction channels 322 side by side. Each suction channel 322 is over a Vacuum port 323 connected to a vacuum source, not shown.
- the suction channel 322 includes a substantially in the transport direction A extending suction slot 324, which advantageously slightly oblique to the transport direction A is arranged.
- the suction channel 322 In the region of the respective suction slot 324 is the outer contour the suction channel 322 as a sliding surface for a circulating, air-permeable Conveyor belt 325 is formed.
- the air permeability is conveniently generated by that the conveyor belt 325 is formed as a thin, fine-meshed fabric band is.
- the conveyor belt 325 transports the fiber structure 19 to be compacted through the compression zone 20 and thereby slides on the suction channel 322, with Except an area facing away from the suction slot 324, where it by a clamping element 326 tensioned and guided sideways.
- the support 304 carrying the pressure roller twins 305 and 306 is considered to be a closed one Housing 328 is formed, which is sealed by the axes 307 and 308 is penetrated. As a result, the interior of the housing 328 is protected against fiber fly.
- the housing 328 suitably consists of two sub-housings 329 and 330, which are interconnected by a pivot axis 331.
- the parting line 332 is thereby defined in the area of a plane defined by the axes 307 and 308, so that the axes 307 and 308 carrying stationary sleeves 333 and 334 between the two sub-housings 329 and 330 can be clamped.
- the housing 328 includes elements for transmitting drive forces to the pressure rollers 311, 312. A description of these elements is omitted here, since they are for the present invention does not matter.
- the rotatable axes 307 and 308 of Pressure roller twins 305 and 306 are by way of bearings 335 in the stationary sleeves 333 and 334 stored.
- a strong loading spring 341 is arranged, which together with an additional clamping spring 342 a resilient receptacle 343 for the Axis 307 of the first pressure roll twin 305 forms. This is done by clamping the stationary sleeve 333, in which the axis 307 is rotatably mounted.
- the loading spring At the same time, 344 transmits the loading pressure to the first pressure rollers 309 and 310, which yes form the output pressure rollers of the respective drafting system 301.
- the ratio diameter delivery cylinder 316 ./. diameter other drafting cylinder not visible.
- the cylinder 316 can but through a standard design formed by the outlet cylinder of a ring spinning drafting system are hardly different, as far as the diameter is concerned, from the others Cylinder of the drafting system i. the diameter of the cylinder 316 is considerably smaller as the diameter of the drum 166 ( Figure 5).
- FIGS. 8 and 9 show schematically, the system according to FIGS 6/7 be adapted to the use of a compressor 14 according to the figure 3.
- the Druckwalzenzwilllinge 305, 306 itself remain virtually unchanged. It is but now required, the pressure rollers 311 and 312 also in contact with the Subcylinder 316 to bring, but the holder 304 (Fig. 6/7) considerably simplified can be, because in this embodiment no additional drive for the delivery rollers 311, 312 is necessary.
- the loading spring 341 or 342, 344 according to the figure 7/6 are retained and are still used as a receptacle for axis 307 of the first print twins.
- a secondary one Spring 341 b between the spring 341 a and the compressor ensures its contact pressure to the roller 316.
- the spring end of the spring 341a at 823 may be longitudinal and Transverse guide (radial and axial) are used for the compressor.
- FIG. 8 The compressor 14 is shown in dashed lines in FIG. 8 and in FIG its position between the rollers 309, 311 shown. About details of a possible Holder will be discussed below with reference to FIG. The compressor 14 will in any case directly or indirectly from the load carrier or load arm 302 worn.
- the holder must be so either be designed to apply a pressure force in the direction of the cylinder 316 generated, or at least the exercise of such force by another means allows.
- a compressor 14 may not be in constant contact with the two associated with it Pressure rollers 309, 311 and 310, 312 remain because the pressure rollers are ground periodically must be so that they each have a cylindrical surface. The distance between the surfaces of the pressure rollers will therefore change in operation.
- the compressor should not "hop” and certainly not “tilt” around an edge.
- the bracket should therefore be for a safe guidance in the radial direction and preferably also for a predetermined Angular position relative to the cylinder 316 provide.
- the compressor 14 can thus be without contact with the associated pressure rollers or kept in contact with a given pressure roller. According to the principles listed in DE 3841346, the compressor should be in contact with it held with the pressure roller 309 and 310 (on the inlet side of the compressor field) become. But since the present arrangement is fundamentally different from the arrangement differs according to the old DE font, it may prove advantageous, the Compressor 14 but to keep in contact with the pressure roller 311 and 312. The holder should, if possible, allow all permissible arrangements.
- FIG. 10 An example of a possible mounting according to FIG. 10 comprises a spring-elastic Joch 380, which is arcuate before assembly in the drafting and in the Middle is provided with a fastening means (for example a screw) 381, whereby the Yoke on the arm 823 (FIG. 8) can be attached.
- the yoke 380 has end portions 382 and 383 received in respective receptacles 384 and 385, respectively at the end faces of the compressor bodies 386, 387 remote from the cylinder 316 or are attached.
- the end parts 382, 383 may be e.g. with the cans 384, 385 one each Form snap connection and / or it can additionally locking elements (not shown) are provided, which depending on a positive but preferably detachable connection between the end portions 382, 383 and the bushes 384, 385 effect.
- the arm When using a spring-loaded bracket, such as the yoke 380, the arm must 823 are loaded in the direction of the operating position, that, despite the tension of the yoke 380, the pressure rollers 311, 312 securely in contact with the cylinder 316 are held.
- a suitable loading means (not shown) may be used using various means (pneumatic, magnetic and also mechanical) the person skilled in the art are well known.
- the arm 823 must also be loaded in this way be that the required contact pressure between the pressure rollers and the Cylinder 316 is generated. It may be advisable to reduce the burden on you Separate pressure rollers 311, 312 from the load of the compressor 14.
- the compressors 14 could z. B. be loaded by resilient means, directly between the Compressor 14 and the load arm 302 act.
- the compressors do not necessarily have to be separable from the holder.
- the yoke 380 could e.g. be formed in one piece with the compressor, so that a module consisting must be replaced simultaneously from the yoke and compressor pair.
- the compressor body 386 or 387 is basically made of ceramic, Plastic or of a metal, optionally of an alloy or composite material from two or more components. But the compressor could also be one Sintered body are formed.
- the body could z. B., with mounting parts, such as. the cans 384 and 385 can be poured.
- the body 386 and 387 may be on at least one particular surface with a coating be provided, for example, at the contact surface 388 or 389 and / or at a Side surface that is in contact with a pressure roller in operation.
- the design of the body 386 or 387, the formation of the compression groove 390th ( Figure 11).
- the inner surface 391 (FIG. 10), which defines the shape of this groove, together with the surface of the cylinder 316 forms the compression channel.
- the groove has at the inlet end a relatively mouth with a relatively wide width E (Fig. 11) and at the outlet end a relatively narrow width e.
- the width E is chosen such that the fibers emerging from the main drafting zone safely into the compression channel enter.
- This width can z. B. 5 to 10 mm. depending on the processed Material amount.
- the width e can be chosen such that the compressed Fiber structure downstream of the pressure roller 311 or 312 substantially without Forming a so-called spinning triangle is twisted into a yarn.
- To this Purpose can be the width e z. B. 1 to 3 mm. depending on the desired yarn number to get voted.
- the groove can therefore be a bit of something have wider spout, z. B. with a width e in the range 3 to 5 mm depending from the width of the fiber composite in the main drafting field. It might even be beneficial be in a batch change and replace the compressor to the Nutenform to adapt to the new material.
- FIGS. 11, 11a and 11b show three different cross sections.
- the groove tapers Groove 390 steadily from the inlet to the outlet end, in the variant according to the figure 11 a, the groove has a discharge portion with substantially parallel side surfaces, while in the variant according to the figure 11 b, the compression work in a, in the Transport direction considered, short inlet section 392 in front of the center of the channel is done so that the fibers are then performed in parallel.
- the fiber-bearing inner surface 390 can be provided with a coating to (in comparison to the material of the main body) to increase the wear resistance and / or the adhesion tendency (eg from dirt).
- the compressor body can also be provided with a "lip" which during the Operating in contact with a pressure roller is.
- a "lip" which during the Operating in contact with a pressure roller is.
- FIG. 10 for the compressor body 387 has been schematically indicated where the lip 393 at the Inlet mouth to the groove 390 is shown.
- the lip does not have to reach the bottom edge of the body 387, because only the middle part of the lip (approximately at the top Edge of the groove) can effectively come into contact with the pressure roller.
- the outlet cylinder 316 still has its function in the drafting system 302 meet.
- the cylinder surface is now formed such that the Compressor body so that essentially can remain in continuous contact.
- FIG 12 shows an example of this DE document where the cylinder 316 at least substantially Has parallel to the cylinder axis extending channel 422 whose radial outer surfaces 423 to the cylinder axis concentric circular cylindrical, smooth and in the circumferential direction are longer than the intermediate recesses 424 (claim 1, DE font).
- Figure 10 also shows a small modification useful for embodiments of this invention Can bring benefits.
- To the right of the vertical plane V in Figure 10 remains the channel compared to the representation in the DE font unchanged - this channel has pronounced Edges 425 on.
- Left of the plane V the edges 426 are rather "broken", i.e. be clear. Such a rounding is only possible on the leading edge, viewed in the transport direction required. She helps that Calm down "run" of the compressor 14 on the channel.
- the cylinder does not necessarily have to be provided with a channel.
- a smooth surface is rather unusual, though not excluded - the
- cylindrical surface can be subjected to a post-treatment, for example by plasma coating or sandblasting.
- the arrangement according to FIG. 3 has a condenser 10 in the drafting zone.
- One modern drafting system of a ring spinning machine points in the main drafting zone, in front of the Drafting system spout, a pair of straps on which to ensure fiber guidance up to a point as close as possible to the terminal line closing the default field is provided. It is still possible between the discharge line of the pair of straps and the nip line of the exit rollers to provide a condenser, such as (among others) from DE -A-4230314.
- the condenser 526 At the Front side is the condenser 526 with a leg of a substantially rectangular bent bracket 531 provided, which is guided to a Achslager Gla 528, on wherein the elastic top roller 515 is rotatably mounted.
- the bracket 531 surrounds with his tail 532 the axle bearing 528 partially and is on this Achslager Federation 528 within a predetermined range (not visible in FIG. 13) axially displaceable.
- the condenser 526 is therefore parallel to the axis of the roller 515 herverschiebbar, so that the fiber structure (not shown) in such Drawframes can follow usual traversing motion.
- the housing 328 with the twins 305 or 306 form an assembly that can be handled as a unit or as a module, which is the Assembly or replacement concerns.
- This concept has advantages that also apply to an execution can be transmitted according to the figure 5 and / or the figure 8/9.
- the assembly according to FIG. 5 consists of the loading arm or load carrier, which can be considered as a unit or module - this unit can have one replace existing arm in an existing ring spinning machine, with the replacement
- the conventional discharge cylinder would also be required to complete the conversion.
- the assembly according to FIG. 8 consists of the twin roller pair 305, 306, the compressor 14 (including the carrier) and the suspension, which the unit with connects to the load carrier 302.
- the individual elements could, however, by a suitable Carrier, similar to the housing 328 in Figure 6, converted to a unit which carrier could be connected to the loading arm.
- the Force-generating elements that generate the contact pressure are not necessarily To add to the unit - they could be separated between the load arm and the too loading elements are attached.
- the distance between the clamping lines is preferably selected such that it is 0.5 to 1.5 times the average staple length of the fibers to be processed.
- the overall arrangement is preferably made such that the thread does not over the Pressure roller of the delivery roller pair is deducted.
- the invention further relates to a spinning machine with a multi-stage drafting system according to the preamble of claim 15.
- Such a spinning machine with a multi-stage drafting system is for example off DE-A-44 26 278 known. Following is a condensation stage with a suction roll and counter-rolls provided, which is followed by a ring spinning device. In the area of the path where the condensation takes place is at a distance provided by the outer surface of the suction roll a screen. The suction zone has a width when using a traversing device at the beginning, the greater as the traverse stroke is. Following this, the suction zone tapers in the conveying direction.
- the present invention is based on the object, a spinning device of to improve the above-mentioned type so that with simpler means an equal Result in the yarn quality is achieved.
- FIGS. 1 a and 2 a of a roving bobbin 12 arranged at the top is a flyer fly 11 via a deflecting element 28 in a three-cylinder drafting system 13 with a Input roller pair 37, 37 'having Vorverzugsfeld 23 and a main drafting zone 24 introduced.
- the pair of rollers 29, 29 'at the end of the Vorverzugsfeldes 23 and at the beginning of the main drafting zone 24 is in a known manner with only schematically indicated Riemchen 30, 30 'fitted, up to the nip of a pair of delivery rollers 25, 26 extend.
- the lower roller of the output roller pair is considered to be a much larger diameter as the remaining rollers having perforated suction roll 25 with a rotation axis 36 formed with a counter-drafting roller exit roller 26 together forms the last nip 14 of the drafting system 13.
- the lower roller 25 is formed as a smooth or fluted cylinder.
- the run through the drafting system 13 fiber strand is followed by the output gap 14 along a curved path 15 over a part of the Circumference of the suction roller 25 led around, up to a rotation locking counter roll 27, which together with the suction roller 25 a rotation locking gap 16 for forms the fiber structure.
- the perforation 35 of the suction roller 25 extends according to Fig. 2a over the entire Scope, but only over a small width of the peripheral wall of the suction roll 25, which but also taking into account any traversing movement of the fiber strand 22 is so large that the fiber strand 22 is always in contact with the perforation 35 is located.
- a concentric screen 32 which is in the region of the path piece 15 is interrupted, arranged so that due to a in the interior of the Umbrella 32 maintained negative pressure through the perforation 35 of the suction roll 25 in the direction of the arrows 34, an air flow is generated radially from outside to inside.
- the fiber structure passes under rotation distribution in a classic ring spinning device 17, with ring rail 18, ring 19, rotor 20, spindle bank 38 and spindle 21 is equipped and from the out of the Rotation locking gap 16 emerging compact fiber strand 22 the ring spun yarn 39th manufactures.
- the total delay in the drafting system 13 is preferably 25 to 80, in particular to 100, wherein the delay in Vorverzugsfeld 23 only within the usual limits of 1.1 to 1.3 times.
- the multistage drafting system 13 is shown again purely schematically, wherein according to the invention instead of a suction roll, a lower roll 25 with a smooth Cylinder surface provided and instead of the Umlenkles 40 in the gusset between the output roller 26 and the rotation lock counter roll or pinch roller 27, a mechanical compression element 45 is arranged.
- the pinch roller 27 is provided with a (not shown) braking device, so that this slower runs as the output roller 26.
- the output roller 26 has a larger Rotational speed than the lower roller 25 have, so that a slip of 0.5% 5%, resulting in a distortion of the fiber structure.
- the slip of the Pinch roller 27 amounts to about 0.5% to 3%.
- the compression element 45 is in perspective in FIG. 4a and in cross section in FIG. 5a shown along the line A-A of Figure 4 and has a waisted shape with a cone-shaped recess 46 on the lower side wall 47, which on the lower roller 26 rests (see Figure 3a).
- the mechanical compression element 45 is preferably made of a suitable metal, plastic or ceramic, the Surface is designed so that fibers can not adhere to it, i. E. fiber-free remains.
- the compression element 45 made of a magnetic metal, so that the compression element 45 in position between the output roller 26 and the pinch roller 27 is held. on the other hand can also be provided a pressure spring.
- the output roller 26 and the pinch roller 27 on a common carrier 48 on the guide arm 49 attached, so that the ratio of the contact pressures of the two rollers 26 and 27th is constant when changing the total pressure.
- the Pinch roller 27 via an additional (not shown here) lever arm on the guide arm 49 is fixed, so that the contact pressure for the pinch roller 27 individually can be adjusted.
- the contact pressure of the pinch roller 27 should be at least 3 to 4 kg and is usually between 15 and 20 kg.
- the cone angle ⁇ is between 30 ° and 120 °.
- the compression element 45 a minimal support on the surfaces of the Output roller 26 and the pinch roller 27 may, the surfaces 50 and 51 be slightly domed, which rest against the output roller 26 and the pinch roller 27 or be provided with small nubs or ribs. Furthermore, the larger lower roller 25 provided with a herringbone ribbing or an axial straight Kannelur be so that no compression forces acting on the compression element 45, it from can push its axial position.
- Fig. 6a another variant of the conical recess 46 is shown, wherein a semi-conical section 52 and then a semicircular cylindrical Section 53 are provided.
- the diameter D of the section 53 is between 0.3 and 5.0 mm, and the distance d to the lower edge 54 is from 0 to 6 mm. It understands It is obvious to a person skilled in the art that the conical recess is not only circular but also elliptical, rectangular or polygonal can be formed.
- the axial distance of the rollers 26 and 27 is preferably 25 to 46 mm.
- FIG. 6 b shows an enlarged detail in the vicinity of the recess 46 an axis F, which parallel to the material flow direction of the fiber structure through the Recess is located.
- the axis F does not necessarily need the axis of symmetry the geometric figure, which is the boundary of the recess 46 for Compression element 45 out represents. If you put a section through the compression element 45 in a plane in which the axis F is, results in a meridian section line M of the boundary surface of the recess 46 toward the compression element 45, while in a section transverse to the axis F an arcuate section line Q is formed.
- Both Cutting lines, the meridional section line M and the cross-section line Q can be circular, be oval, elliptical or polygonal.
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Abstract
Description
- Fig. 1
- einen schematischen Querschnitt durch eine Spinnmaschine mit einer pneumatischen Verdichtungseinrichtung zum Verdichten eines Faserverbandes;
- Fig. 2
- eine Ausführung des Verdichtungselementes gemäss DE 10051410 A;
- Fig. 3
- eine Kopie der Fig. 1 aus der russischen Patentschrift Nr. 160973;
- Fig. 4
- eine Kopie der Fig. 5 aus der gleichen russischen Patentschrift;
- Fig. 5
- eine schematische Darstellung einer Ausführung der vorliegenden Erfindung, wobei diese Ausführung durch das Kombinieren von Merkmalen aus den Fig. 2 und 3 gebildet wird;
- Fig. 6
- eine Kopie der Fig. 1 aus US 6,434,923;
- Fig. 7
- eine Kopie der Fig. 2 aus der US Schrift;
- Fig. 8
- eine schematische Darstellung bestimmter Teile einer Ausführung der vorliegenden Erfindung, wobei diese Ausführung durch das Kombinieren von Merkmalen aus den Fig. 3 und 6 gebildet wird;
- Fig. 9
- eine schematische Darstellung der Ausführung gemäss der Fig. 8 von oben (in Richtung des Pfeils P, Fig. 8) betrachtet, wobei auch andere Elemente gezeigt sind;
- Fig. 10
- eine schematische Darstellung einer Halterung für den Verdichter in der Fig. 9;
- Fig. 11
- einen Schnitt in der Ebene II-II der Figur 10, wobei die Fig. 11a und 11 b mögliche Alternativen zeigen;
- Fig. 12
- eine Kopie der Fig. 4 aus DE-A-4230316 mit schematischen Ergänzungen zum Anpassen an der vorliegenden Erfindung, und
- Fig. 13
- eine Kopie der Fig. 1 aus DE-A-4230314.
Der Klemmwalze 170 folgt die Sperrwalze 111 nach, die ebenfalls auf der bewegten Fläche 121 abrollt. Auch sie bildet mit der bewegten Fläche 121 eine Kontaktlinie (Klemmlinie) 124. Es ist ein vorgegebener Abstand x zwischen den beiden Klemmlinien 123 und 124 vorhanden.
- durch eine Erweiterung der Breite E (Fig. 11), oder
- dadurch, dass der Verdichter auf seine Halterung in einem begrenzten Bereich frei beweglich ist (nicht gezeigt).
- Fig. 1 a
- eine schematische Seitenansicht einer einzigen Spinnstelle einer Ringspinnmaschine,
- Fig. 2 a
- eine Vorderansicht der gleichen Spinnstelle,
- Fig. 3a
- eine schematische Darstellung des Streckwerks der Spinnstelle,
- Fig. 4a
- ein Verdichtungselement in perspektivischer Ansicht,
- Fig. 5a
- dasselbe Verdichtungselement im Querschnitt,
- Fig. 6a
- einen Ausschnitt einer Variante des Verdichtungselementes, und
- Fig. 6b
- ein vergrössertes Detail der Darstellung in Fig. 6a mit einer mehrfach gekrümmten Einlaufkontur der Ausnehmung im Verdichtungselement.
Claims (26)
- Streckwerk (140, 301) mit einem Auslaufzylinder (316) und einem Belastungsarm (141, 302), dadurch gekennzeichnet, dasszwei Druckwalzen mit dem Auslaufzylinder (316) je eine Klemmlinie (123, 124, 317, 375) bilden, wobei die Klemmlinien (123, 124, 317, 375) in der Materialflussrichtung einen vorzugsweise vorgegebenen Abstand aufweisen, undzwischen den Klemmlinien (123, 124, 317, 375) ein Führungskörper angeordnet ist und insbesondere mit dem Zylinder (1, 3, 166) in Berührung steht und zusammen mit der Oberfläche 216 des Zylinders (1, 3, 166) einen Faserführungskanal bildet, der sich in der Materialflussrichtung verjüngt.
- Streckwerk (140, 301) gemäss Anspruch 1, dadurch gekennzeichnet, dass der Belastungsarm (141, 302) Trägermittel umfasst, welche die genannten Druckwalzen (2, 4, 5, 115, 309, 310, 311, 312) derart tragen, dass sie die erforderlichen Stellungen gegenüber dem Auslaufzylinder (316) einnehmen, wenn der Belastungsarm (141, 302) in seine Betriebsstellung bewegt wird.
- Streckwerk (140, 301) gemäss Anspruch 1 oder 2, gekennzeichnet durch eine Halterung (142, 304), welche den Führungskörper im Streckwerk (140, 301) führt.
- Streckwerk (140, 301) gemäss Anspruch 3, dadurch gekennzeichnet, dass der Führungskörper durch seine Halterung (142, 304) derart geführt wird, dass eine bestimmte Fläche des Körpers mit derjenigen Fläche des Zylinders (1, 3, 166) in Berührung steht, welche in Betrieb die Fasern fördert.
- Streckwerk (140, 301) gemäss Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Trägermittel und die Halterung (142, 304) zusammen eine gemeinsam auswechselbare Baugruppe bilden.
- Streckwerk (140, 301) gemäss einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass Belastungsmittel vorgesehen sind, um den Führungskörper an die Zylinderoberfläche (216) anzupressen.
- Streckwerk (140, 301) gemäss einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Oberfläche (216) des Zylinders (1, 3, 166) derart gebildet wird, dass zumindest im Bereich, wo die Verdichtungsarbeit geleistet wird, der Führungskörper im wesentlichen kontinuierlich in Berührung mit der Zylinderoberfläche (216) bleibt.
- Streckwerk (140, 301) gemäss einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Führungskörper in axialer Richtung des Zylinders (1, 3, 166) in einem begrenzten Bereich frei beweglich ist.
- Streckwerk (140, 301) gemäss einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Führungskörper gegen Bewegungen in axialer Richtung des Zylinders (1, 3, 166) geführt wird.
- Streckwerk (140, 301) gemäss einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass ein Kondensor (10, 526) im Hauptverzugsfeld (24) vorgesehen ist.
- Belastungsarm (141, 823), gekennzeichnet durch ein Druckwalzenpaar und einen Führungskörper, die derart vom Arm (141, 823) getragen werden, dass beide Walzen mit dem Auslaufzylinder (316) eines Streckwerks (140, 301) zusammenarbeiten können, um mit dem Zylinder (1, 3, 166) zwei Klemmstellen zu bilden, die in der Materialflussrichtung einen vorgegebenen Abstand aufweisen, wobei der Führungskörper mit dem Zylinder zwischen den Klemmstellen in Berührung tritt und zusammen mit der Oberfläche (216) des Zylinders (1, 3, 166) einen Faserführungskanal bildet, der sich in der Materialflussrichtung verjüngt.
- Baugruppe zur Verwendung in einem Arm (141, 823) gemäss Anspruch 11, gekennzeichnet durch einen Träger, der sowohl eine Aufhängung für die Druckwalzen (4, 5) des Paares wie auch eine Aufnahme für den Führungskörper aufweist, wobei der Träger mit Verbindungsmittel versehen ist, um den Träger derart mit dem Arm (141, 823) zu verbinden, dass die Baugruppe als eine Einheit auswechselbar ist.
- Führungskörper mit einer Führungsfläche, die für die Zusammenarbeit mit einer beweglichen Fläche eines Streckwerkes (140, 301) zur Bildung eines Verdichtungskanals ausgebildet ist, dadurch gekennzeichnet, dass der Führungskörper mit Befestigungsmittel zum Verbinden des Körpers mit einem Belastungsarm (141, 823) versehen ist.
- Spinnmaschine, insbesondere aber nicht ausschliesslich Ringspinnmaschine, gekennzeichnet durch ein Streckwerk (140, 301) gemäss einem der Ansprüche 1 bis 10, einen Belastungsarm (141, 823) gemäss Anspruch 11, eine Baugruppe gemäss Anspruch 12 und/oder ein Führungskörper gemäss Anspruch 13.
- Spinnmaschine, insbesondere, Ringspinnmaschine, mit einem Mehrstufen-Streckwerk (13), welches ein Einzugswalzenpaar (37, 37'), ein Riemchenwalzenpaar (29, 29') und darauffolgende Auslaufwalzen aufweist, die eine grössere Unterwalze (25) und dieser gegenüberliegende Oberwalzen (26, 27) aufweist, dadurch gekennzeichnet, dass ein im Zwickel zwischen den beiden Oberwalzen (26, 27) hineinpassendes mechanisches Verdichtungselement (45) angeordnet ist und dass das Verdichtungselement (45) eine taillierte Form und eine konusförmige Ausnehmung (46) im auf der Unterwalze aufliegenden Randbereich (47) aufweist und dass die konusförmige Ausnehmung (46) ein konusförmiges Teilstück (52) und ein daran anschliessendes halbkreiszylindrisches Teilstück (53) aufweist.
- Spinnmaschine nach Anspruch 15, dadurch gekennzeichnet, dass der Konuswinkel (α) der konusförmigen Ausnehmung (46) zwischen 30° und 120° liegt.
- Spinnmaschine nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass eine Ausnehumng (46) im Verdichtungselement (45), welche eine Führung für einen zu verdichtenden Faserverband bildet, wenigstens einlaufsseitig des Faserverbandes so gestaltet ist, dass ein Schnitt durch das Verdichtungselement längs oder quer zur Fasermaterialflussrichtung eine Schnittkontur der Begrenzungsfläche der Ausnehmung (46) zum Körper des Verdichtungselement (45) hin ergibt, welche ein Teil einer Ellipse oder eines Kreises oder allgemein eines Ovals oder eines mehreckigen Linienzuges (M, Q) mit dazwischen liegenden geraden Stücken oder auch gebogenen Stücken ist.
- Streckwerk nach einem der Ansprüche 15 bis 17, dadurch gekennzeichnet, dass die zylindrische Oberfläche der Unterwalze (25) mit einer axialen geraden Kannelur oder mit einem Fischgrat-Riffelung versehen oder als glatter Zylinder ausgebildet ist.
- Spinnmaschine nach einem der Ansprüche 15 bis 18, dadurch gekennzeichnet, dass das Verdichtungselement (45) mehrere vorstehende Rippen oder Noppen aufweist, die auf der an der Ausgangswalze (26) und/oder Klemmwalze (27) anliegenden Seite vorgesehen sind, um lediglich eine linienförmige oder punktuelle Berührung mit der Ausgangswalze (26) und/oder Klemmwalze (27) zuzulassen.
- Spinnmaschine nach einem der Ansprüche 15 bis 19, dadurch gekennzeichnet, dass das Verdichtungselement (45) seitliche Führungen aufweist, die dazu bestimmt sind, das Verdichtungselement in axialer Richtung Oberwalzen (26, 27) zu halten.
- Spinnmaschine nach einem der Ansprüche 15 bis 20, dadurch gekennzeichnet, dass das Verdichtungselement (45) zumindest teilweise aus einem magnetischen Werkstoff gefertigt ist, um das Verdichtungselement bezüglich der Oberwalzen (26, 27) in seiner festgelegten Position zu halten.
- Spinnmaschine nach einem der Ansprüche 15 bis 21, dadurch gekennzeichnet, dass eine Anpressfeder das Verdichtungselement (45) in seiner vorbestimmten Position hält.
- Spinnmaschine nach einem der Ansprüche 15 bis 22, dadurch gekennzeichnet, dass die Oberfläche und der Werkstoff des Verdichtungselement (45) so gewählt sind, dass keine Fasern an die Oberfläche haften bleiben, insbesondere Kunststoff mit Eigenschaften zur Vermeidung elektrostatischer Aufladung.
- Spinnmaschine nach Anspruch 15, dadurch gekennzeichnet, dass die Oberwalzen eine Ausgangswalze (26) und eine Klemmwalze (27) sind, welche mittels eines am Führungsarm (49) angeordneten Trägers (48) gegen die Unterwalze (25) gedrückt wird.
- Spinnmaschine nach Anspruch 24, dadurch gekennzeichnet, dass die zumindest die Klemmwalze (27) mit einem Anpressdruck von 1 bis 20 kg gegen die Unterwalze (25) gedrückt wird.
- Spinnmaschine nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Achsabstand der Walzen (26 und 27) zwischen 15 und 46mm beträgt.
Applications Claiming Priority (2)
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CH17962003 | 2003-10-21 | ||
CH17962003 | 2003-10-21 |
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EP1526194A2 true EP1526194A2 (de) | 2005-04-27 |
EP1526194A3 EP1526194A3 (de) | 2006-06-21 |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1930488A1 (de) * | 2006-12-09 | 2008-06-11 | Maschinenfabrik Rieter Ag | Spinnmaschine mit Verdichtungsvorrichtungen |
CN100547133C (zh) * | 2008-01-25 | 2009-10-07 | 朱爱萍 | 上置式弹性盘片立体紧密纺纱装置 |
WO2010016808A1 (en) * | 2008-08-04 | 2010-02-11 | Ozdilek Alisveris Merkezleri Ve Tekstil Sanayi Anonim Sirketi | Compact yarn manufacturing system |
WO2010143098A1 (en) | 2009-06-08 | 2010-12-16 | Cengiz Ulusoy | A compactor to be used in compact yarn machines |
EP2314742A2 (de) | 2009-10-24 | 2011-04-27 | Oerlikon Textile Components GmbH | Compaktierungsaggregat für ein Streckwerk zum Verziehen von Stapelfasern |
CN102704080A (zh) * | 2012-07-06 | 2012-10-03 | 常熟市天豪机械有限公司 | 纺织用多功能罗拉 |
EP3095898A1 (de) * | 2015-05-18 | 2016-11-23 | Maschinenfabrik Rieter Ag | Belastungsträger für oberwalzen eines streckwerks und druckfeder |
DE102015009500A1 (de) | 2015-07-22 | 2017-01-26 | Saurer Germany Gmbh & Co. Kg | Verfahren zum Betreiben einer Ringspinnmaschine, Ringspinnmaschine und Streckwerk |
CN107177910A (zh) * | 2017-07-21 | 2017-09-19 | 宁夏如意科技时尚产业有限公司 | 一种赛络纺纱装置 |
Families Citing this family (9)
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DE102006015825B4 (de) * | 2006-04-03 | 2021-07-08 | Holding für Industriebeteiligungen AG | Compactor-Abstützung |
DE102006041770A1 (de) * | 2006-09-04 | 2008-03-06 | Maschinenfabrik Rieter Ag | Faserverdichtungsvorrichtung in einem Steckwerk einer Spinnmaschine |
DE102008057667A1 (de) * | 2008-04-24 | 2009-10-29 | Wilhelm Stahlecker Gmbh | Verdichtereinheit für ein Streckwerk einer Textilmaschine |
CN101435121B (zh) * | 2008-12-11 | 2012-07-18 | 朱爱萍 | 带控纱的紧密纺纱器 |
WO2010114503A1 (en) * | 2009-03-31 | 2010-10-07 | Ozdilek Alisveris Merkezleri Ve Tekstil Sanayi Anonim Sirketi | In yarn production, apron cladding mechanism and method to the rollers coated with elastic material and found in the drafting and guding zone, having shift structure and pre-tensioning mechanism |
DE102013107353A1 (de) * | 2013-07-11 | 2015-01-15 | Maschinenfabrik Rieter Ag | Elektrisch leitendes Transportband mit Füllstoffobjekten mit einer Nanostruktur |
JP2015178688A (ja) * | 2014-03-19 | 2015-10-08 | 村田機械株式会社 | 繊維制御部材、ドラフト装置、及び紡績機 |
DE102015109269A1 (de) * | 2015-05-18 | 2016-11-24 | Maschinenfabrik Rieter Ag | Belastungsträger für Oberwalzen eines Streckwerks und Druckfeder |
CN105063822A (zh) * | 2015-08-14 | 2015-11-18 | 吴江金叶织造有限公司 | 一种用于纺织的罗拉 |
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GB577094A (en) * | 1944-05-26 | 1946-05-03 | Howard & Bullough Ltd | Improvements in drafting apparatus for drawing, spinning and like textile machines |
FR1310600A (fr) * | 1961-10-16 | 1962-11-30 | Alsacienne Constr Meca | Dispositif de contrôle des fibres dans les systèmes de laminage de mèches de fibres textiles |
DE10051410A1 (de) * | 2000-09-01 | 2002-03-14 | Rieter Ag Maschf | Spinnmaschine mit einer Verdichtungseinrichtung |
DE10344009A1 (de) * | 2003-09-15 | 2005-04-07 | Wilhelm Stahlecker Gmbh | Vorrichtung zum mechanischen Verdichten eines Faserverbandes |
-
2004
- 2004-08-09 EP EP04018817A patent/EP1526194A3/de not_active Withdrawn
- 2004-10-20 CN CN 200410086937 patent/CN1609294A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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GB577094A (en) * | 1944-05-26 | 1946-05-03 | Howard & Bullough Ltd | Improvements in drafting apparatus for drawing, spinning and like textile machines |
FR1310600A (fr) * | 1961-10-16 | 1962-11-30 | Alsacienne Constr Meca | Dispositif de contrôle des fibres dans les systèmes de laminage de mèches de fibres textiles |
DE10051410A1 (de) * | 2000-09-01 | 2002-03-14 | Rieter Ag Maschf | Spinnmaschine mit einer Verdichtungseinrichtung |
DE10344009A1 (de) * | 2003-09-15 | 2005-04-07 | Wilhelm Stahlecker Gmbh | Vorrichtung zum mechanischen Verdichten eines Faserverbandes |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1930488A1 (de) * | 2006-12-09 | 2008-06-11 | Maschinenfabrik Rieter Ag | Spinnmaschine mit Verdichtungsvorrichtungen |
CN100547133C (zh) * | 2008-01-25 | 2009-10-07 | 朱爱萍 | 上置式弹性盘片立体紧密纺纱装置 |
WO2010016808A1 (en) * | 2008-08-04 | 2010-02-11 | Ozdilek Alisveris Merkezleri Ve Tekstil Sanayi Anonim Sirketi | Compact yarn manufacturing system |
WO2010143098A1 (en) | 2009-06-08 | 2010-12-16 | Cengiz Ulusoy | A compactor to be used in compact yarn machines |
EP2314742A2 (de) | 2009-10-24 | 2011-04-27 | Oerlikon Textile Components GmbH | Compaktierungsaggregat für ein Streckwerk zum Verziehen von Stapelfasern |
DE102009050581A1 (de) | 2009-10-24 | 2011-04-28 | Oerlikon Textile Components Gmbh | Compaktierungsaggregat für ein Streckwerk zum Verziehen von Stapelfasern |
CN102704080A (zh) * | 2012-07-06 | 2012-10-03 | 常熟市天豪机械有限公司 | 纺织用多功能罗拉 |
EP3095898A1 (de) * | 2015-05-18 | 2016-11-23 | Maschinenfabrik Rieter Ag | Belastungsträger für oberwalzen eines streckwerks und druckfeder |
DE102015009500A1 (de) | 2015-07-22 | 2017-01-26 | Saurer Germany Gmbh & Co. Kg | Verfahren zum Betreiben einer Ringspinnmaschine, Ringspinnmaschine und Streckwerk |
CN107177910A (zh) * | 2017-07-21 | 2017-09-19 | 宁夏如意科技时尚产业有限公司 | 一种赛络纺纱装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1526194A3 (de) | 2006-06-21 |
CN1609294A (zh) | 2005-04-27 |
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