EP1207225A2 - Spinnvorrichtung - Google Patents

Spinnvorrichtung Download PDF

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Publication number
EP1207225A2
EP1207225A2 EP01125805A EP01125805A EP1207225A2 EP 1207225 A2 EP1207225 A2 EP 1207225A2 EP 01125805 A EP01125805 A EP 01125805A EP 01125805 A EP01125805 A EP 01125805A EP 1207225 A2 EP1207225 A2 EP 1207225A2
Authority
EP
European Patent Office
Prior art keywords
yarn
spinning
guide shaft
nozzle
hollow guide
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.)
Granted
Application number
EP01125805A
Other languages
English (en)
French (fr)
Other versions
EP1207225A3 (de
EP1207225B1 (de
EP1207225B2 (de
Inventor
Harutoshi Murata Kikai Shataku Sawada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Machinery Ltd
Original Assignee
Murata Machinery Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority claimed from JP2000348975A external-priority patent/JP2002155432A/ja
Priority claimed from JP2000348974A external-priority patent/JP3536810B2/ja
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Priority to DE60120082T priority Critical patent/DE60120082T9/de
Publication of EP1207225A2 publication Critical patent/EP1207225A2/de
Publication of EP1207225A3 publication Critical patent/EP1207225A3/de
Publication of EP1207225B1 publication Critical patent/EP1207225B1/de
Application granted granted Critical
Publication of EP1207225B2 publication Critical patent/EP1207225B2/de
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means
    • 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
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons

Definitions

  • the present invention relates to a spinning device, wherein a plurality of yarns is produced by that a plurality of fiber bundles is supplied to a drafting device and a plurality of the drafted fiber bundles is twisted respectively by the action of revolving airflow, and after that, a doubled yarn is produced by uniting a plurality of yarns.
  • the conventional spinning device such that doubled yarn is produced by that two confused yarn produced by the yarn producing units installed in parallel are united by passing the doubled-yarn guide, the entertaining yarn is produced by ballooning the fiber bundle and giving the fiber bundle false-twisted by the revolving airflow from the second nozzle that is the downstream-side nozzle of the yarn producing unit. Therefore, the yarn discharged from the yarn producing unit balloons between the yarn producing unit and the doubled-yarn guide, so that two pieces of yarn discharged from the adjacent two yarn producing units respectively interfere with each other and some problems happened such that the yarn breakage is generated and the quality of doubled yarn deteriorates.
  • the spinning member is comprised by arranging a plurality of the yarn producing units whose spinning member has the hollow guide shaft that the yarn passage is formed extended to the axis direction and the air jet nozzle that the revolving airflow is generated in the spinning room that is in the tip part of the hollow guide shaft, and the doubled-yarn guide is provided between the spinning member and the winding part, and the single yarns produced by a plurality of the yarn producing units is united in the doubled-yarn guide and is wound to the winding package as the doubled yarn in the winding part.
  • a plurality of the fiber bundles introduced from the drafting device to the spinning member is discharged from the spinning member as a plurality of the spun yarns, and after united in the doubled-yarn guide, the spun yarn is wound to the winding package as a doubled yarn in the winding part.
  • the yarn producing unit of the spinning member after the back end of the fiber comprising the fiber bundle is reversed by the revolving airflow acted to the tip part of the hollow guide shaft, it is wound around the tip part of the trailing fiber and is sucked into the yarn passage by running the fiber bundle (the spun yarn).
  • the truly twisted-like spun yarn that the twining fiber is existed to the whole of the longitudinal direction is produced respectively in each yarn-producing unit.
  • the spun yarn is produced based on this fundamental, the single yarn discharged from each yarn-producing unit does not balloon between the spinning member and the doubled-yarn guide. Therefore, the problem such that a plurality of single yarns is interlaced, broken or the yarn quality deteriorates by ballooning is not happened, like the conventional spinning device using two revolving airflows that revolve in the reverse directions.
  • each yarn-producing unit has a suction power generating means which generates suction power from the yarn-passage inlet to the yarn discharging outlet of the hollow guide shaft respectively, and in the yarn discharging spinning at the start of spinning, the spun yarn is discharged respectively from each yarn producing unit by operating both the air jet nozzle and the suction power generating means, and a control device, switching to the normal spinning by stopping the operation of the suction power generating means with keeping the operation of the air jet nozzle as the yarn discharging spinning ends, is provided.
  • yarn discharging spinning is implemented by operating both the air jet nozzle and the suction-power generating means.
  • the fiber bundle supplied from the drafting device is discharged from the yarn producing unit as the spun yarn in the state of having intensity that can be drawn by the yarn drawing means without being stuck in the yarn producing unit.
  • the restarting of the spinning device that produces the doubled yarn winding package can be surely implemented by the simple composition.
  • the operation of the suction-power generating device is stopped with keeping the operation of the air jet nozzle, and the operation is switched to the normal spinning.
  • the switching from the yarn discharging spinning to the normal spinning can be implemented smoothly, only by stopping the operation of the suction-power generating means.
  • the suction-power generating means having the inner air passage formed in the outer side of the yarn passage in the hollow guide shaft and the assistant nozzle connecting the inner air passage and the yarn passage, jets compressed air from the inner air passage into the yarn passage through the assistant nozzle.
  • the composition of the suction-power generating means can be simpler and the powerful suction-power can be generated in the yarn passage of the hollow guide shaft.
  • the jet pressure of the air jet nozzle can be freely changeable, and the control device keeps the jet pressure of the air jet nozzle low in the prescribed time period from the beginning of the yarn discharging spinning.
  • the fiber bundle supplied from the drafting device can be prevented from being twirled by the revolving airflow in the tip part of the hollow guide shaft by keeping the jet pressure of the air jet nozzle low in the first prescribed time period, and the fiber bundle can be surely sucked into the yarn passage of the hollow guide shaft by the suction-power of the suction-power generating means (the assistant nozzle). Therefore, the reliability of the yarn discharging spinning is improved.
  • the yarn piecing part, the spinning-side yarn end guide means which leads the spinning-side yarn end discharged from the yarn producing unit to the yarn piecing part by the yarn discharging spinning and the winding-side yarn end guide means which leads the winding-side yarn end unwinded from the winding package to the yarn piecing part are provided, and in the yarn piecing operation, the spinning-side yarn end guide means and the winding-side yarn end guide means are operated and the yarn piecing process between the spinning-side yarn end and the winding-side yarn end is implemented in the yarn piecing part, and the spun yarn produced by the yarn discharging spinning is all eliminated and the spun yarn after switching to the normal spinning is pieced in the yarn piecing operation.
  • the spun yarn at the yarn discharging spinning is not mixed into the winding package. Accordingly, the quality of the spun yarn of the winding package can be even.
  • the spinning member in the spinning device having the drafting device which drafts the fiber bundle, the spinning member positioned in the downstream side of the drafting device and the winding part which winds the spun yarn produced by the spinning member, the spinning member is comprised by arranging a plurality of the yarn producing units having the hollow guide shaft part and the spinning nozzle part, and the hollow guide shaft part has the hollow guide shaft that the yarn passage extended to the axis direction is formed, and the spinning nozzle part has the air jet nozzle which generates the revolving airflow in the spinning room which is in the tip of the hollow guide shaft, and a plurality of the hollow guide shaft parts and a plurality of the spinning nozzle parts is comprised that they can be freely contacted by the common drive means, and the doubled-yarn guide is provided between the spinning member and the winding part, and the single yarns produced by a plurality of the yarn producing units are united in the doubled-yarn guide, and the yarn is wound to the winding package as the doubled yarn in the winding part.
  • a plurality of the fiber bundles introduced from the drafting device to the spinning member is discharged from the spinning member as a plurality of the spun yarns and they are wound to the winding package as the doubled yarn in the winding part after united in the doubled-yarn guide.
  • the yarn producing unit of the spinning member after the back end of the fiber composing the fiber bundle is reversed by the revolving airflow acted to the tip part of the hollow guide shaft, it is wound around the tip part of the trailing fiber and is sucked into the yarn passage by running the fiber bundle (the spun yarn).
  • the truly twisted-like spun yarn that the twining fiber is existed to the whole of the longitudinal direction in each yarn producing unit is produced respectively like this.
  • the spun yarn is produced by the fundamental like this, the single yarn discharged from each yarn producing unit does not balloon between the spinning member and the doubled-yarn guide. Therefore, the problems such that the yarn is broken and the yarn quality is deteriorated as a plurality of single yarns is interlaced by ballooning are not happened like the conventional spinning device using two revolving airflows that rotate to the reverse directions.
  • the automatic elimination can be surely implemented even in the case that the spinning is implemented in the state that the hollow guide shaft part and the spinning nozzle part are united and the fiber is stuck in the spinning room between the hollow guide shaft part and the spinning nozzle part or the surroundings by separating the hollow guide shaft part and the spinning nozzle part at the yarn breakage (at the halt of spinning).
  • the structure can be simpler and the unite and the separating operation of a plurality of the hollow guide shaft parts and a plurality of the spinning nozzle parts can be surely implemented.
  • the shield part shielding the spinning room in each yarn producing unit each other is provided, and in spinning, it is comprised such that the revolving air in each spinning room by the air jet nozzle does not interfere with each other.
  • the turbulence of the revolving airflow by the interference is not generated and the yarn discharging spinning and the normal spinning can be implemented in good condition as the revolving airflow in each spinning room by the air jet nozzle does not interfere with each other. Therefore, the success ratio of the yarn discharging spinning can be improved, and the quality deterioration of the spun yarn produced in the normal spinning can be prevented.
  • the first arm having a plurality of inserting holes corresponded to each spinning nozzle part, which a plurality of the spinning nozzle parts are installed and the second arm, comprised of contacting freely to the first arm, that a plurality of the installing blocks is installed are provided, and the hollow guide shaft is installed in a plurality of the installing blocks, and a part of a plurality of the installing blocks installed in the second arm is inserted into a plurality of the inserting holes formed in the first arm respectively and the positioning of the hollow guide shaft to the air jet nozzle is implemented.
  • the positioning is implemented by that the installing block installed the hollow guide shaft is inserted into the inserting hole, the positioning can be implemented correctly to the positional relation when each hollow guide shaft is in the spinning condition to each air jet nozzle in uniting the hollow guide shaft part and the spinning nozzle part by the simple structure.
  • the ninth invention as a plurality of the installing blocks is supported through the elastic body in order to freely adjusting the core separately to the second arm and a part of the installing block is inserted into the inserting hole as both arms come close, it is comprised such that the core of each installing block is adjusted separately to each inserting hole and the installing block is pressured to the spinning nozzle part by the energization power of the aforementioned elastic body.
  • each hollow guide shaft can be positioned correctly to each air jet nozzle separately.
  • the installing block is pressured to the spinning nozzle part by the energization power of the elastic body, the air leak between the installing block and the spinning nozzle part (the inserting hole) can be surely prevented, and spinning can be implemented with discharging air from the air jet nozzle to the spinning room in good condition all the time.
  • 1a and 1b are fiber bundles (slivers) stored respectively in cans 2a, 2b.
  • 3a and 3b are the cylinder-shaped guides for the fiber bundles position in the inlet of a drafting device D.
  • the drafting device D is an example of the four-line type drafting device comprising a back roller 4, a third roller 5, a second roller 6 added to install an apron belt 6'and a front roller 7.
  • the drafting device D drafts the fiber bundles 1a, 1b using the peripheral-speed difference between rollers.
  • An after-mentioned spinning member P is positioned in just the downstream side of the drafting device D and two pairs of the yarn producing units are built-in.
  • a yarn delivering member comprising a nip roller 9a and a delivery roller 9b.
  • the doubled-yarn guide 8 is positioned between the spinning member P and the yarn delivering member 9.
  • 10 is a slack tube (a yarn storing member) for storing the doubled yarn discharged from the spinning member P that the spinning is restarted temporarily in the piecing operation, and 11 is a yarn clearer (a detector of yarn thickness).
  • 12 is a package wound to a bobbin 13 supported by the bobbin holder (not shown in the drawings), and the package 12 is comprised of rotating by a friction roller 14 abutting against the surface of the package 12.
  • 15 is a traverse guide of the traverse device (not shown in the drawings).
  • a winding part W is comprised of the bobbin 13 supported by the bobbin holder, the friction roller 14 and the traverse guide 15 etc..
  • the fiber bundles 1a, 1b pulled respectively extruded from the cans 2a, 2b are drafted by the common drafting device D, they are entered into two pairs of the yarn producing units comprising the spinning member P and two pieces of yarn Ya, Yb are produced by the respective yarn producing unit, and after that, the produced two pieces of yarn Ya, Yb become the doubled yarn Y, united by the doubled-yarn guide 8. After that, the doubled yarn Y is nipped by the nip roller 9a and the delivery roller 9b and is transferred to the winding part W direction.
  • the winding part W it is comprised such that the doubled yarn Y is wound to the package 12 that rotates by being abut against the friction roller 14 while traversed by the traverse guide 15.
  • the yarn Ya, Yb are called the single yarns Ya, Yb, for clearly discriminating two pieces of yarn Ya, Yb produced respectively and the doubled yarn Y formed by uniting these yarn Ya, Yb by two pairs of the yarn producing units.
  • the spinning device is formed by installing the numerous spinning units in parallel comprising the drafting device D, the spinning member P, the yarn delivering member 9, the slack tube 10, the yarn clearer 11 and the winding part W etc. as mentioned above.
  • the yarn producing unit U is mainly comprised of a spinning nozzle part N fixed in the after-mentioned first swinging arm and a hollow guide shaft part S which can be united or separated to the spinning nozzle part N.
  • the spinning nozzle part N has a needle holder 18, comprising a guide hole 16 that the drafted fiber bundle 1 by the drafting device D is introduced and a needle 17 installed on the passage of the fiber bundle 1 discharged from the guide hole 16, and the needle holder 18 is installed in a nozzle block 19.
  • the nozzle block 19 formed in the abbreviated cylindrical shape has a spinning room 20 in it, and has a plurality of air jet nozzles 21 for generating the revolving airflow in the spinning room 20.
  • the air jet nozzle 21 is open towards the tangent direction, to the spinning room 20 whose cross section is formed circular.
  • the tip part of the needle holder 18 is inserted into an opening 22' of a housing 22, and the nozzle block 19 positioned in the housing 22 is installed by inserting into an opening 24' formed in a first swinging arm 24 through an intermediate board 23 having an opening 23' that the nozzle block 19 can be freely inserted.
  • 25 is an air reservoir formed in the housing 22 such as to surround the compressed-air introduction hole of the air jet nozzle 21, and the reservoir 25 is communicated to a compressed-air passage 26 and a shell 27 that the compressed-air passage 26 is formed is connected to the compressed-air supply source (not shown in the drawings).
  • a solenoid valve for switching the jet/halt of the compressed air from thenozzle 21 is provided between the air jet nozzle 21 and the compressed air supply source, and the solenoid valve is switched by the switching signal from the after-mentioned control device.
  • the compressed air supplied to the air reservoir 25 through the compressed-air passage 26 and the like is jet from the air jet nozzle 21 to the tip part 29 direction of the after-mentioned hollow guide shaft 28, and the revolving air is generated in the spinning room 20 and the airflow to the spinning room 20 direction is generated in the guide hole 16 of the needle holder 18, and the suction airflow is generated in the vicinity of the fiber bundle introduction hole positioned in the front roller 7 side of the guide hole 16.
  • the fiber bundle 1 coming from the front roller 7 becomes easier to introduce to the guide hole 16 of the needle holder 18.
  • a hollow guide shaft 28 comprising the hollow guide shaft part S has a frustum-cone shape tip part 29 and a barrel part 31 having a circular-shaped inner air passage 30, and a yarn passage 32 is formed in the central part along the axis of the hollow guide shaft 28.
  • the inner air passage 30 and a yarn passage 32 is connected by an assistant nozzle 33, and a pipe 36 connected to the compressed air supply source (not shown in the drawings) is also connected to the inner air passage 30 through a connection tool 35 connected to an eyehole 34 formed in the barrel part 31.
  • the assistance nozzle 33 is comprised such as to be positioned in the tip part 29 side, compared with the eyehole 34 formed in the barrel part 31.
  • the shaft installing block 37 is a shaft installing block that the hollow guide shaft 28 is installed, and the shaft installing block 37 has a base part 38 whose shape is that a part of the disc is eliminated along by the string, a frustum cone 39 positioned in the center of the base part 38, a cylinder part 40 positioned in the center of the base part 38 to the frustum cone 39 and a leg part 42 that is installed in the base part 38 of the cylinder part 40 side in a protrusion manner and a screw hole 41 is formed, and it is comprised such that the hollow guide shaft 28 is attached by inserting to an eyehole 43 formed along the axis of the shaft installing block 37 and the tip part 29 of the hollow guide shaft 28 is protruded over the frustum cone part 39.
  • a leg part attachment hole 47 attached by inserting the leg part 42 formed in the shaft installing block 37 is made around two installing holes 46 formed in the installing pedestal part 45.
  • the example that six leg part attachment holes 47 is made in the installing pedestal part 45 is showed.
  • a space part 49 whose inside diameter is larger than the one of the leg part attachment part 47 is formed in the part that the leg part 42 of the leg part attachment hole 47 formed in the pedestal part 45 is positioned in the opposite side of the attachment side, in order that a head part 48' of a bolt 48 can be inserted.
  • a ring-shape convex part 50 is installed in a protrusion manner in the inner surface of the leg part attachment hole 47 adjacent to the border between the leg part attachment hole 47 and the space part 49.
  • the inner diameter of the space part 49 can be same as the inner diameter of the leg part attachment hole 47 or can be smaller depending on the sizeof the head part 48' of the bolt 48, and the above-mentioned ring-shape convex part 50 formed for the after-mentioned object can be abbreviated as the step partis formed in the border between the leg part attachment hole 47 and the space part 49 in case that the inner diameter of the space part 49 becomes smaller that the one of the leg part attachment hole 47.
  • the cylinder part 40 of the shaft installing block 37 that the hollow guide shaft 28 is installed is attached by inserting to the installing hole 46 formed in the installing pedestal part 45 of the second swinging arm 44, and a coil spring 51 is inserted in advance.
  • the leg part 42 formed in the shaft installing block 37 is attached by inserting to the leg part attachment hole 47 formed in the installing pedestal part 45. It is comprised that the edge part of the space part 49 side of the coil spring 51 inserted into the leg part attachment hole 47 is abut against the ring-shape convex part 50 which is installed in a protrusion manner in the inner surface of the leg part attachment hole 47.
  • the shaft installing block 37 that the hollow guide shaft 28 is attached is installed in the installing pedestal part 45 of the second swinging arm 44 by that the bolt 48 is inserted from the space part 49 side formed in the installing pedestal part 45 of the second swinging arm 44 into the inside of the coil spring 51 inserted into the leg part attachment hole 47 and the tip part of the bolt 48 is screwed into the screw hole 41 of the leg part 42 formed in the shaft installing block 37.
  • Two shaft installing blocks are comprised to be attached to the installing pedestal part 45 of the second swinging arm 44 in an embodiment of the present invention, however, two shaft installing blocks 37 are positioned such that straight line parts 38a', 38b' formed in the edge part of the base part 38 of the shaft installing block 37 become relative to a parallel state.
  • the leg part 42 of the shaft installing block 37 is attached by insertion to the leg part attachment hole 47 formed in the installing pedestal part 45, and the edge part of the space part 49 of the coil spring 51 inserted into the leg part attachment hole 47 is abut against the ring-shape convex part 50 installed in a protrusion manner in the inner surface of the leg part attachment hole 47.
  • another edge part of the coil spring 51 is comprised of abutting against the bottom surface of the leg part 42, so that the shaft installing block 37 is energized to the direction that the leg part 42 is exited from the leg part attachment hole 47 formed in the installing pedestal part 45 by the energization power of the coil spring 51.
  • the head part 48' of the bolt 48 is comprised of being abut against the step part 52 formed in the border between the leg part attachment hole 47 and the space part 49 before the leg part 42 of the shaft installing block 37 is exited from the leg part attachment hole 47 formed in the installing pedestal part 45, in order that the leg part 42 of the shaft installing block 37 is not fully exited from the leg attachment hole 47 formed in the installing pedestal part 45.
  • An opening 22' that the above-mentioned needle holder 18 can be inserted is formed in the housing 22 attached in the tip part of the above-mentioned first swinging arm 24, and in an embodiment of the present invention, as the spinning device having two pairs of the yarn producing units Ua, Ub is shown, two openings 22' are formed in a horizontal relation such that two needle holders 18 can be inserted.
  • two inserting holes 53 are formed in the tip part of the first swinging arm 24 corresponding to the two openings 22' formed in the housing 22.
  • the inserting hole 53 is comprised such that the frustum cone part 39 of the shaft installing block 37 that the hollow guide shaft 28 positioned in the installing pedestal part 45 of the second swinging arm 44 is attached is inserted.
  • a cavity part 55 having an opening 54 in the down end of the tip part of the first swinging arm 24 is formed along the longitudinal direction in the first swinging arm 24, and the cavity part 55 are separated into two along the way and one branch passage 56 is connected to one inserting hole 53 in the two inserting holes 53 formed in the tip part of the first swinging arm 24, and the other branch passage 56 is connected to the other inserting hole 53 in the two inserting holes 53 formed in the tip part of the first swinging arm 24.
  • the opening 54 formed in the down side of the tip part of the first swinging arm 24 is connected to a pipe 57 connected to the air suction source (not shown in the drawings).
  • the floating fiber and the dust in spinning is comprised of being sucked and eliminated by generating the weak suction airflow in the inserting hole 53 through the pipe 57 and the branch passage 56, and of functioning as the escape of the compressed air which is jetted from the air jet nozzle 21 of the nozzle block 19.
  • a horizontal shaft 59 installed in a suitable machine body F of the spinning device is inserted into a horizontal-axis hole 58 formed in the down end part of the second swinging arm 44, and a piston rod 61 of a cylinder 60 installed in the suitable machine body F of the spinning device is pivoted in a branch arm 44' of the second swinging arm 44, so that it is comprised such that the operation of the cylinder 60 can make the piston rod 61 move back and forward.
  • the first swinging arm 24 and the second swinging arm 44 can be swung by the cylinder 60 that is a common drive source, and by the swing of the first swinging arm 24 and the second swinging arm 44, the spinning nozzle part N and the hollow guide shaft 28 can be moved respectively between the spinning position and the evacuating position.
  • the first swinging arm 24 and the second swinging arm 44 are swinging together to the halfway, and the swing of the first swinging arm 24 is controlled by the stopper (not shown in the drawings) attached in the suitable position of the machine body F at the prescribed position, and after that, only the second swinging arm 44 is swung to the evacuation position.
  • the stopper not shown in the drawings
  • the prescribed space will be formed both between the drafting device D and the spinning nozzle part N, and between the spinning nozzle part N and the hollow guide shaft part S.
  • the base part 38 of the shaft installing block 37 installed in the second swinging arm 44 is comprised to pressure to the flat aspect 24" of the tip part of the first swinging arm 24 by the energization power of the coil spring 51 inserted in the leg part attachment hole 47 formed in the installing pedestal part 45.
  • the spinning nozzle part N positioned in the first swingingarm 24 and the hollow guide shaft part S positioned in the second swinging arm 44 are comprised to be separate finally.
  • the tip part 29 of the hollow guide shaft 28 comprising the hollow guide shaft part S is comprised to position.
  • the hollow guide shaft 28 is positioned in the prescribed position to the air jet nozzle 21 and the needle 17.
  • the first swinging arm 24, that bifurcates from the tip part, has two diverging arms 62, and the horizontal shaft 59 positioned in the suitable machine body F of the above-mentioned spinning device is inserted and installed in a horizontal shaft hole 62' made in the diverging arm 62. Moreover, according to the first swinging arm 24, it is positioned in the down part of the front roller 7 of the drafting device D and the needle holder 18 and a suction mouse 63 having the opening in the upper part is installed, and the suction mouse 63 is connected to an air suction source (not shown in the drawings) through a pipe 64 connected to the suction mouse63.
  • the suction mouse 63 has the function that the floating fiber and the dust in this vicinity are sucked in and eliminated.
  • the spinning that is the yarn producing process is implemented in the state that the spinning nozzle part N and the hollow guide shaft part S are in the spinning position respectively, however in this state, the frustum cone part 39 of the shaft installing block 37 is inserted into the inserting hole 53 formed in the first swinging arm 24.
  • the spinning nozzle part N and the hollow guide shaft part S are united in the yarn producing process like this, and after the fiber bundles 1 supplied to the drafting device D pulled out from the cans 2 is drafted by the drafting device D respectively, the fiber bundle 1 is entered into the guide hole 16 by the suction airflow in the vicinity of the guide hole 16 of the needle holder 18 generated in the action of the jet air jetted from the air jet nozzle 21, and after that, it is transferred along the surrounding area of the needle 17 and entered into the spinning room 20.
  • the fiber that comprising the fiber bundle 1 sucked into the spinning room 20 is affected by the action of the revolving airflow which revolves in high speed in the vicinity of the tip part 29 of the hollow guide shaft 28 jetted from the air jet nozzle 21, and the back end is reversed to the downstream side while diverging from the fiber bundle 1 and is twisted to the direction of the revolving airflow.
  • the above-mentioned twisted fiber is produced into the truly twisted-like single yarns Ya, Yb major part of which becomes the twined fiber sequentially, and it is passed through the yarn passage 32 of the hollow guide shaft 28 and is discharged from the yarn discharging outlet 28'.
  • the compressed air passes through the pipe 36 and the connecting tool 35 from the compressed air supply source but is not supplied to theinner air passage 30 of the hollow guide shaft 28, so that the compressed air is not supplied into the yarn passage 32 from the assistant nozzle 33.
  • two pieces of single yarns Ya, Yb are produced by the yarn producing process mentioned above.
  • the single yarns Ya, Yb produced by the respective yarn producing units Ua, Ub are united by passing the doubled-yarn guide 8 and formed into the doubled yarn Y, and after that, it is nipped by the nip roller 9a and the delivery roller 9b comprised the yarn delivering member 9 and transferred to the package 12 direction, and after that, it is wound to the package 12 which rotates by being abut against the friction roller 14.
  • the draft roller Before the starting of the spinning device or in generating the yarn breakage, a part of the draft roller is stopped and the compressed air is not jetted from the air jet nozzle 21 and the assistant nozzle 33, so that the air jet nozzle 21 and the assistant nozzle 33 is not in the operating condition.
  • the fiber bundle 1 whose tip is gripped by the third roller 5 in the stopping condition is delivered by the rotating drive of the back roller 4 and the third roller 5, and is supplied to the yarn producing unit U of the spinning member P through the second roller 6 and the front roller 7.
  • the compressed air is jetted from the air jet nozzle 21 and the assistant nozzle 33.
  • the compressed air is jetted from the air jet nozzle 21 and the compressed air is supplied from the compressed air supply source to the inner air passage 30 of the hollow guide shaft 28 through the pipe 36 and the connecting tool 35, so that compressed air is also jetted from the assistant nozzle 33 into the yarn passage 32.
  • the fiber bundle 1 introduced to the guide hole 16 of the needle holder 18 is delivered to the vicinity of a yarn passage inlet 28" formed in the tip of the hollow guide shaft 28 through the needle 17 with making the fiber false twisted loosely by the revolving airflow.
  • the compressed air jetted from the assistant nozzle 33 is flowed along the surface of the internal circumference in the yarn passage 32 formed in the hollow guide shaft 28, and the airflow to the suction direction (the direction into the hollow guide shaft 28) is generated in the yarn passage inlet 28" formed in the tip of the hollow guide shaft 28 with forming the revolving airflow. Therefore, the fiber bundle 1 can be drawn to the yarn passage 32 of the hollow guide shaft 28 successively.
  • the false twisted fiber bundle 1 delivered to the vicinity of the yarn passage inlet 28" formed in the tip of the hollow guide shaft 28 is sucked from the yarn passage inlet 28" into the yarn passage 32 by the suction airflow from the yarn passage inlet 28". Moreover, the fiber bundle 1 is exposed to the revolving airflow generated by the compressed air jetted from the assistant nozzle 33 in the yarn passage 32.
  • the loosely false twisted fiber bundle 1 is pieced to the yarn in the facinated state and is discharged from the yarn discharging outlet 28' of the hollow guide shaft 28.
  • the yarn spinning condition of the yarn in the facinated state (the annoyed yarn) by the air jet nozzle 21 and the assistant nozzle 33 like this is called a yarn discharging spinning.
  • the machine body of the spinning device is comprised by setting a plurality of the spinning units mentioned above side by side, and the yarn piecing device 80 is disposed along the direction of setting the spinning units side by side in the state that the device can freely run.
  • the yarn piecing device 80 is run to the yarn breakage generating unit by receiving the yarn piecing request, and the yarn piecing of the spinning-side doubled yarn Y and the winding-side doubled yarn Y is implemented.
  • the yarn piecing device 80 comprises a yarn piecing part 81 pieced the introduced spinning-side doubled yarn Y and winding-side doubled yarn Y, a spinning-side yarn end guide member 82 grasping the doubled yarn Y discharged from the spinning member P and introduced to the yarn piecing part 81 and a winding-side yarn end guide member 84 grasping the doubled yarn Y delivered by reversing the winding package 12 and introduced to the yarn piecing part 81.
  • an air-type device (the air splicer) that both yarn ends are spliced by the revolving airflow or a device (the mechanical-type knotter) that both yarn ends are knotted and pieced by the rotation of the knotter head can be used in the yarn piecing part 81.
  • the spinning-side yarn end guide member 82 that the suction pipe which can freely revolve upwards and downwards is used, grasps a plurality of the yarns Ya, Yb discharged from the spinning member P in the state of revolving to the yarn grasping position in the upper part, and the yarn Ya, Yb can be introduced to the yarn piecing part 81 by revolving to the lower-yarn guide position in the state.
  • a plurality of the yarns Ya, Yb discharged from a plurality of the yarn producing units is grasped and guided respectively at the same time by one suction pipe comprising the spinning-side yarn end guide member 82. That is to say that the suction pipe comprising the spinning-side yarn end guide member 82, equipped with a suction hole 83 whose size is as big as covering the yarn discharging outlets 28', 28' of a plurality of the yarn producing units at the same time, can graspa plurality of the yarns Ya, Yb discharged from the spinning member P by a common suction hole 83 in the state of being in the yarn grasping position.
  • the yarn piecing movement is implemented by that the yarn piecing device 80 runs to the yarn breakage-generating unit as the yarn breakage is generated in a spinning unit.
  • the spinning-side yarn end guide member 82 revolves to the yarn grasping position that the suction hole 83 is opposed to the yarn discharging outlets 28', 28' of the spinning member P, and in the state, the yarn discharging spinning is implemented and the spun yarn Ya and Yb discharged from the spinning member P by the yarn discharging spinning is sucked and grasped to the spinning-side yarn end guide member 82.
  • the yarn discharging spinning will be described in more detail with reference to Figure 8. Moreover, the yarn delivering spinning described later controls the movement of the air jet nozzle 21, the assistant nozzle 33 and the back roller 4 (the third roller 5) by the control device (not shown in the drawings).
  • the yarn discharging spinning first in a time T0, the supply of the fiber bundle 1 (1a, 1b) is started by redriving the halt draft roller (the back roller 4, the third roller 5), and the air jet nozzle 21 and the assistant nozzle 33 of each yarn producing unit are activated and the twining spun yarns Ya, Yb are produced from the fiber bundle 1 (1a, 1b) using two revolving airflows which revolve to the reverse direction.
  • the spun yarns Ya, Yb which have the intensity of being able to be drawn by the revolution to the downward of the spinning-side yarn end guide member 82. Moreover, the yarn discharging spinning like this is implemented respectively at the same time by each yarn producing unit of the spinning member P.
  • the jet pressure of the air jet nozzle 21 keeps low pressure PL in a prescribed time ⁇ T from the start (the time T0) of the yarn descharging spinning, and after the prescribed time ⁇ T is passed, the jet pressure of the air jet nozzle 21 is switched to high pressure PH at a time T1.
  • the pressure of the air jet nozzle 21 low just after starting the yarn discharging spinning, the whirl of the fiber bundle 1 by the revolving airflow is controlled and the fiber bundle 1 supplied from the guide hole 16 can be surely taken into the yarn passage 32 of the hollow guide shaft 28. That is why the success ratio of the yarn discharging spinning can be improved.
  • the spinning-side yarn end guide member 82 revolves to the lower yarn guide position in the state of sucking and grasping the yarns Ya, Yb discharged from each yarn producing unit, the respective yarns Ya, Yb, which pass through the doubled-yarn guide 8 and become the doubled yarn Y, is nipped between the rollers 9a, 9b of the yarn delivering member 9 at a time T2 and is introduced to the yarn piecing part 81.
  • the control device stops the work of only the assistant nozzle 33 out of the nozzles 21, 33, and switches to the normal spinning that the hollow guide shaft 28 and the air jet nozzle 21 are used.
  • the switching from the yarn discharging spinning to the normal spinning can be implemented smoothly by switching from the yarn discharging spinning to the normal spinning after starting the stable delivery of the doubled yarn Y by the yarn delivering member 9 and by switching only to stop the work of the assistant nozzle 33 with working the air jet nozzle 21 continuously.
  • the winding-side yarn end (the doubled yarn Y) which is already winded to the winding package 12 by the winding-side yarn end guide member 84 is also introduced to the yarn piecing part 81.
  • the piecing that both doubled yarns Y are connected is implemented by driving the yarn piecing part 81.
  • the doubled yarn Y that is spun from the spinning member P during the yarn piecing process in the yarn piecing part 81 is stored in the yarn storing member (the slack tube 10) which is in the downstream side of the yarn delivering member 9.
  • the twining spun yarn produced by the yarn discharging spinning is all sucked into the spinning-side yarn end guide member 82 and eliminated, and the truly twisted-like spun yarn (the doubled yarn Y) produced after switching to the normal spinning is pieced to the winding-side yarn end (the doubled yarn Y) in the yarn piecing part 81. Therefore, only the doubled yarn Y that the truly twisted-like spun yarns Ya, Yb produced by the normal spinning are united can be winded in the winding package 12.
  • the spinning-side fiber bundle 1 can be easily drawn into the hollow guide shaft 28 in the yarn piecing operation as the means to generate the airflow to the suction direction (the direction into the hollow guide shaft 28) is provided in the yarn passage inlet 28" formed in the tip of the hollow guide shaft 28 in the yarn piecing operation at the yarn breakage or at the start of spinning in order that the fiber bundle 1 revolved in the spinning room 20 is sucked and introduced into the yarn passage 32 of the hollow guide shaft 28, and the sure and speedy yarn piecing operation can be implemented as the annoyed yarn which has the intensity that can be drawn by the spinning-side yarn end guide member can be charged from the yarn discharging outlet 28' of the hollow guide shaft 28.
  • the assistant nozzle 33 generated the revolving airflow in the yarn passage 32 is provided as the means to generate the airflow to the direction into the hollow guide shaft 28, however, this is not alwaysconfined to the thing to generate the revolving airflow and the things to generate the direct airflow from the yarn passage inlet 28" to the yarn discharging outlet 28' can be also used.
  • the following piecing method is publicly known such that the yarn wound from the separately prepared package or the winding package (hereafter it is called the parent yarn) is passed reversely from the yarn discharging outlet 28' of the hollow guide shaft 28 to the yarn passage 34 of the hollow guide shaft 30 and after that, the fiber bundle 1 and the parent yarn are pieced by that the supply of the fiber bundle into the spinning room 20 is restarted by restarting the drive of the halt third roller 5 and the parent yarn is taken into the package direction, however in this method, piecing is going to fail as the timing that the parent yarn is taken into the package direction, particularly the timing with the drive of the halt third roller 5 grasping the fiber bundle 1 is different.
  • the start and restarting of the easy and sure spinning device can be implemented as there is no need to consider the timing like the timing of receiving the parent yarn or the timing of restarting the transfer of the fiber bundle as in the yarn piecing method using the parent yarn.
  • the doubled yarn Y is cut by the cutter built-in the yarn clearer 11 and the above mentioned spinning restarting operation will be implemented after the hollow guide shaft part S and the spinning nozzle part N are separated once as mentioned below.
  • the first swinging arm 24 and the second swinging arm 44 are swung centering the horizontal shaft 59 when the cylinder 60 works from the spinning state that both the hollow guide shaft part S and the spinning nozzle part N are united and the piston rod 61 is retreated, and after that the swing of the first swinging arm 24 is regulated by the stopper as mentioned above, and after that only the second swinging arm 44 is swung to the escape position and the hollow guide shaft part S installed in the second swinging arm 44 is separated from the spinning nozzle part N.
  • the fluff and the like attached in the vicinity can be surely eliminated by jetting the compressed air (the air shower) to the vicinity of the fiber bundle introducing inlet of the guide hole 16 of the spinning nozzle part N in the state that the spinning nozzle part N and the hollow guide shaft part S are separated (the state that the spinning nozzle part N is separated from the front roller 7).
  • the second swinging arm 44 rotates to the first swinging arm 24 direction, centering the horizontal shaft 59 and the hollow guide shaft part S installed in the second swinging arm 44 is united to the spinning nozzle part N.
  • a coil spring 67 is installed between a short shaft 65 installed in the diverging arm 44' of the second nozzle swinging arm 44 and a pin 66 installed in the first swinging arm 24, and the second swinging arm 44 is comprised to be always energized to the first swinging arm 24 direction by the energization power of the coil spring 67. Accordingly, after the spinning nozzle part N and the hollow guide shaft part S are united, the unite state of the spinning nozzle part N and the hollow guide shaft part S is surely maintained even if the supply of the fluid like the air to the cylinder 60 is stopped.
  • the frustum cone part 39 of the shaft installing block 37 installed in the installing pedestal part 45 of the second swinging arm 44 is comprised to be inserted into the inserting hole 53 formed in the tip of the first swinging arm 24, and the flat side surface 24" in the second swinging arm 44 side of the tip part of the first swinging arm 24 and a side surface 38" in the first swinging arm 24 side of the base part 38 of the shaft installing block 37 installed in the installing pedestal part 45 of the second swinging arm 44 are comprised to contact face to face.
  • the side surface 38" in the first swinging arm 24 side of the base part 38 of the shaft installing block 37 installed in the installing pedestal part 45 of the second swinging arm 44 is abut against the flat side surface 24" in the second swinging arm 44 side of the tip part of the first swinging arm 24, but furthermore, asthe second swinging arm 44 rotates to the first swinging arm 24 direction, the leg part 42 of the shaft installing block 37 is entered into the leg part attachment hole 47, and is compressed the coil spring 51 against the energization power of the coil spring 51 stored in the leg part attachment hole 47 of the installing pedestal part 45 of the second swinging arm 44, therefore, the shaft installing block 37 installed in the second swinging arm 44 is pressed to the tip part of the first swinging arm 24 by the repulsion power of the coil spring 51.
  • the flat side surface 24" in the second swinging arm 44 side of the tip part of the first swinging arm 24 and the side surface 38" in the first swinging arm 24 side of the base part 38 of the shaftinstalling block 37 installed in the installing pedestal part 45 of the second swinging arm 44 are contacted face to face in the pressed condition, and the generation like the air leakage can be prevented without forming the gap between the aforementioned side surfaces 24", 38".
  • the yarn producing unit comprising the spinning nozzle part N equipped with the nozzle block 19 having the air jet nozzle 21 generating the revolving airflow and the hollow guide shaft part S equipped with the hollow guide shaft 28 are utilized as two pairs of the yarn producing units Ua, Ub built-in the spinning member P, the produced single yarns Ya, Yb do not ballooned between the yarn discharging outlet 28' of the hollow guide shaft part S and the doubled-yarn guide 8, so that the troubles like the yarn breakage by the ballooning in the above-mentioned conventional doubled yarn spinning device are not generated and the quality of the doubled yarn is not deteriorated.
  • the core adjustment of the hollow guide shaft 28 installed in the hollow guide shaft part S and the nozzle block 19 installed in the spinning nozzle part N can be implemented surely and speedy.
  • the compressed air is jetted from the assistant nozzles 33 of the respective hollow guide shafts 28 of two pairs of the yarn producing units Ua, Ub at the same time in restarting the spinning
  • the pipes 36a, 36b connected to the barrel part 31 of each hollow guide shaft 28 through the connecting tool 35 are connected to one main part 71 in the way and the jet of the compressed air from the assistant nozzle 33 of two pairs of the yarn producing units Ua, Ub is implemented at the same time by the common switching means like the electro-solenoid valve 72 installed in the way of the main pipe 71 (see Figure 4).
  • each inserting hole 53 formed in the first swinging arm 24 is respectively connected to each spinning room 20 and the wall (the shield wall) dividing among each inserting hole 53 is provided in the first swinging arm 24.
  • each inserting hole 53 is open to outside respectively, but a plurality of the installing blocks 37 of the hollow guide shaft 28 is surely fitted into each inserting hole 53 respectively and each spinning room 20 is completely shielded by the core adjusting work and the presswork of the coil spring 51, so that the revolving airflows in each spinning room 20 do not interfere with each other, and the quality deterioration of the single yarns Ya, Yb by the interference of the revolving airflow can be prevented.
  • the spinning that cannot be realized in the conventional doubled yarn spinning device can be implemented even in the case that the fiber bundle 1 is 100% short-fibered cotton, and the high speed spinning more than 300 meter/minute can be also implemented, for example.
  • the present invention demonstrates the following advantages.
  • the spinning member is comprised of arranging a plurality of the yarn producing units having the hollow guide shaft formed in the yarn passage extended to the axis direction and the air jet nozzle generating the revolving airflow in the spinning room in the tip of the hollow guide shaft, and the doubled-yarn guide is equipped between the spinning member and the winding part and the single yarns produced in a plurality of the yarn producing units are united in the doubled-yarn guide, the single yarn produced in the spinning member does not balloon between the spinning member and the doubled-yarn guide, so that, like the conventional spinning device, the trouble like the yarn breakage by ballooning is not generated and the quality of the doubled yarn is not deteriorated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP01125805A 2000-11-16 2001-10-29 Spinnvorrichtung Expired - Lifetime EP1207225B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE60120082T DE60120082T9 (de) 2000-11-16 2001-10-29 Spinnvorrichtung

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2000348975A JP2002155432A (ja) 2000-11-16 2000-11-16 紡績装置
JP2000348974A JP3536810B2 (ja) 2000-11-16 2000-11-16 紡績装置
JP2000348975 2000-11-16
JP2000348974 2000-11-16

Publications (4)

Publication Number Publication Date
EP1207225A2 true EP1207225A2 (de) 2002-05-22
EP1207225A3 EP1207225A3 (de) 2003-01-08
EP1207225B1 EP1207225B1 (de) 2006-05-31
EP1207225B2 EP1207225B2 (de) 2011-08-31

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EP01125805A Expired - Lifetime EP1207225B2 (de) 2000-11-16 2001-10-29 Spinnvorrichtung

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EP (1) EP1207225B2 (de)
CN (1) CN100434576C (de)
DE (1) DE60120082T9 (de)

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WO2004081268A1 (de) * 2003-03-13 2004-09-23 Maschinenfabrik Rieter Ag Vorrichtung zum herstellen eines gesponnenen fadens
WO2005061765A1 (de) * 2003-12-11 2005-07-07 Maschinenfabrik Rieter Ag Vorrichtung zum herstellen eines gesponnenen fadens aus einem stapelfaserverband
WO2006027216A1 (de) * 2004-09-09 2006-03-16 Maschinenfabrik Rieter Ag Luftdüsenspinnvorrichtung
DE102005055717A1 (de) * 2005-11-23 2007-05-24 Saurer Gmbh & Co. Kg Saugluftdüse für eine Textilmaschine
EP3009540A3 (de) * 2014-10-16 2016-11-02 Murata Machinery, Ltd. Garnwicklungsmaschine
CN107460566B (zh) * 2016-06-03 2021-07-06 里特机械公司 形式为并条机的纺纱准备机器及其运行方法
US11384454B2 (en) * 2018-10-09 2022-07-12 Savio Macchine Tessili S.P.A. Drawing and spinning apparatus and method of mixed yarns for air spinning machines with multiple feeds

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DE102007006674A1 (de) * 2007-02-10 2008-08-14 Oerlikon Textile Gmbh & Co. Kg Luftspinnvorrichtung
CN101608368B (zh) * 2009-07-09 2011-04-13 朱爱萍 超细锦纶弹力丝的加捻装置
JP2011084854A (ja) * 2009-09-18 2011-04-28 Murata Machinery Ltd 紡績機
JP2012127009A (ja) * 2010-12-13 2012-07-05 Murata Mach Ltd 空気紡績装置及び空気紡績装置を備えた紡績機械
JP2013002023A (ja) * 2011-06-20 2013-01-07 Murata Mach Ltd 中空ガイド軸体ユニット、空気紡績装置及び紡績機
CH705221A1 (de) * 2011-07-01 2013-01-15 Rieter Ag Maschf Vorspinnmaschine zur Herstellung eines Vorgarns sowie Verfahren zum Anspinnen eines Faserverbands.
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JP2019108629A (ja) * 2017-12-19 2019-07-04 村田機械株式会社 紡績機及び糸捕捉方法

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Publication number Priority date Publication date Assignee Title
WO2004081268A1 (de) * 2003-03-13 2004-09-23 Maschinenfabrik Rieter Ag Vorrichtung zum herstellen eines gesponnenen fadens
US7281366B2 (en) 2003-03-13 2007-10-16 Maschinenfabrik Rieter Ag Arrangement device for producing a spun thread
WO2005061765A1 (de) * 2003-12-11 2005-07-07 Maschinenfabrik Rieter Ag Vorrichtung zum herstellen eines gesponnenen fadens aus einem stapelfaserverband
US7328569B2 (en) 2003-12-11 2008-02-12 Maschinenfabrik Rieter Ag Arrangement for producing a spun thread from a staple fiber strand
WO2006027216A1 (de) * 2004-09-09 2006-03-16 Maschinenfabrik Rieter Ag Luftdüsenspinnvorrichtung
DE102005055717A1 (de) * 2005-11-23 2007-05-24 Saurer Gmbh & Co. Kg Saugluftdüse für eine Textilmaschine
US7681389B2 (en) 2005-11-23 2010-03-23 Oerlikon Textile Gmbh & Co. Kg Suction air nozzle for a textile machine
EP3009540A3 (de) * 2014-10-16 2016-11-02 Murata Machinery, Ltd. Garnwicklungsmaschine
CN107460566B (zh) * 2016-06-03 2021-07-06 里特机械公司 形式为并条机的纺纱准备机器及其运行方法
US11384454B2 (en) * 2018-10-09 2022-07-12 Savio Macchine Tessili S.P.A. Drawing and spinning apparatus and method of mixed yarns for air spinning machines with multiple feeds

Also Published As

Publication number Publication date
DE60120082D1 (de) 2006-07-06
EP1207225A3 (de) 2003-01-08
DE60120082T2 (de) 2007-01-04
CN100434576C (zh) 2008-11-19
EP1207225B1 (de) 2006-05-31
CN1354294A (zh) 2002-06-19
DE60120082T3 (de) 2012-01-05
EP1207225B2 (de) 2011-08-31
DE60120082T9 (de) 2012-04-26

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