EP0565878B1 - Absaugeinrichtung für eine Vielzahl von kontinuierlich anlaufenden Fäden - Google Patents

Absaugeinrichtung für eine Vielzahl von kontinuierlich anlaufenden Fäden Download PDF

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Publication number
EP0565878B1
EP0565878B1 EP93104208A EP93104208A EP0565878B1 EP 0565878 B1 EP0565878 B1 EP 0565878B1 EP 93104208 A EP93104208 A EP 93104208A EP 93104208 A EP93104208 A EP 93104208A EP 0565878 B1 EP0565878 B1 EP 0565878B1
Authority
EP
European Patent Office
Prior art keywords
suction
thread
tube
suction pipe
inside diameter
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.)
Expired - Lifetime
Application number
EP93104208A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0565878A1 (de
Inventor
Peter Dammann
Klaus Bartkowiak
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik AG
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
Application filed by Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0565878A1 publication Critical patent/EP0565878A1/de
Application granted granted Critical
Publication of EP0565878B1 publication Critical patent/EP0565878B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H11/00—Arrangements for confining or removing dust, fly or the like
    • D01H11/005—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices
    • D01H11/006—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices travelling along the machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/34—Traversing devices; Package-shaping arrangements for laying subsidiary winding, e.g. transfer tails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/71—Arrangements for severing filamentary materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/86—Arrangements for taking-up waste material before or after winding or depositing
    • B65H54/88—Arrangements for taking-up waste material before or after winding or depositing by means of pneumatic arrangements, e.g. suction guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/145—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements set on carriages travelling along the machines; Warning or safety devices pulled along the working unit by a band or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a suction device for a plurality of continuously starting threads according to the preamble of claim 1, known from FR-A-2 203 374.
  • the suction pipe in which, for. B. a negative pressure is generated by a fan.
  • the suction pipe has a large number of inlet openings, which can be closed if necessary.
  • a continuously running thread is guided in the area of each opening. The thread is sucked through the inlet opening as soon as it is behind the inlet opening, i.e. H. is cut off between the inlet opening and the winder.
  • the number of threads that can be sucked through the suction pipe at the same time depends on the suction power and on the suction speed generated in the suction pipe.
  • Another suction device is e.g. B. known from EP 0 404 045.
  • the task is to eliminate the relationship between the speed of the suction flow in the suction tube and the thread speed and to enable that when operating the machine by several people or by machines, the greatest possible number of threads in spite of high thread speed and little effort in suction power can be safely caught and simultaneously conveyed away.
  • the solution results from the characterizing part of claim 1 and offers the advantage that the thread tension is built up in two stages.
  • the viewed suction tubes offer the advantage that the flow and pressure conditions in the suction tube are no longer exclusively decisive for the suction effect the mouths of the inlet tubes. Rather, there are suction and conveying effects on the thread with good use of the suction power of the blower.
  • Several suction tubes can always be open without impairing the suction effect.
  • the thread tension is so great that there is no danger of the thread twisting and the formation of the winder.
  • the flow in the suction channel itself only has the effect of washing off the threads or a thread bulge.
  • the high-speed line that then follows builds up a further thread pulling force on the thread before it reaches the waste container.
  • the axis of the suction tube is inclined in the mouth region into the suction tube relative to the axis of the suction tube in such a way that the thread has a component of movement in the suction direction.
  • the suction tube can be constructed on the inside as a straight cylinder.
  • the axis of the suction tube can also be continuously or abruptly bent with its axis from the mouth area to the suction opening.
  • the thread can be guided in the center of the suction flow that arises in the suction tube and exert a higher tensile force.
  • Each tube can be connected to a closing device in order to "idle" - d. H. if no thread has to be sucked in - to avoid pressure losses in the suction flow.
  • these pressure losses are low anyway, since the suction tube is formed with a multiple of the diameter of the suction tube.
  • the suction pipe is cylindrical. It has an inner diameter of z. B. 40 mm.
  • the suction pipe is equipped on its free end with a closing valve 5, 6. At its other end, the suction pipe 1 is connected to a waste container.
  • the waste container is connected to a vacuum blower. A negative pressure of z. B. 0.7 bar.
  • the suction pipe 1 is populated on a surface line with a large number of suction tubes.
  • Each suction pipe 3 is placed airtight on the jacket of the suction pipe 1.
  • the axis of the suction pipe 3 is inclined to the axis of the suction pipe 1, in such a way that the thread guided through the suction pipe 3 has a movement component in the direction of the suction flow 7, which is generated in the suction pipe 1.
  • Each intake pipe 3 is in turn straight cylindrical and has a length of 100 mm.
  • the inner diameter is small and is z. B. 5 mm.
  • the vacuum or vacuum generated by the vacuum pump vacuum blower
  • a suction flow with the direction of arrow 7 is generated in the suction pipe 1.
  • This also creates an air flow in each intake tube 3.
  • this air flow is substantially larger than the air flow in the suction pipe 1.
  • the narrow diameter of the suction pipe 3 becomes 5 to 20 times Larger inner diameter of the suction pipe 1 is adjusted so that a high pressure difference over the channel length of the suction pipe 3 is established. This creates high flow velocities at the inlet of the intake pipe. With this high flow speed, it is possible to catch the thread safely after the cut and to form such a large thread tension that the thread is guided through the channel of the suction pipe and into the suction pipe.
  • FIG. 2 shows the suction pipe in longitudinal section.
  • FIG. 1 shows the suction pipe in longitudinal section.
  • Some suction tubes 3 are kinked approximately in their central area; other suction tubes, which can alternatively be used, are curved over their entire length.
  • the kink angle or the curvature are selected such that a thread which is guided over the length of the suction tube is only slightly, preferably not at all, deflected by the kink or the curvature.
  • Each intake pipe can be opened and closed by a valve 15, a magnet 25 is used to actuate the valve.
  • the magnet 25 is controlled by the machine control 17 and position control 19.
  • the control is synchronized with the control for the thread cutter 21, by means of which the thread is cut off at the end of the winding travel.
  • the magnet 25 is activated again in the closing sense when the thread has been put back on the winding head at the beginning of a new winding trip and has been cut off between the winding and the suction tube.
  • the suction pipe 1 opens into a so-called "high-speed line” 23.
  • This is a tube which has a smaller diameter and which is connected to the suction tube by a nozzle-like taper 31 in an airtight manner.
  • the high-speed line 23 is connected to the waste container 29.
  • the waste container 29 serves to collect the thread waste. It is connected to a suction fan 27, which causes a vacuum or suction flow in the waste container and thus also in the high-speed line, the suction pipe and the suction tube.
  • An auxiliary valve 5 is provided at the other end of the suction pipe 1.
  • the auxiliary valve can be set up as in FIG. 1.
  • the auxiliary valve allows additional air to be admitted if it turns out that the amount of air let in through the suction tube is not sufficient for the safe transport of the thread in the suction tube 1.
  • the auxiliary valve consists of three additional inlet openings which can be opened and closed separately from one another.
  • a vacuum is generated in the waste container 29 by the suction fan 27.
  • the waste container 29 is hermetically sealed.
  • air is drawn in via the high-speed line 23, the suction pipe 1 and the suction tubes 3 (insofar as they are open).
  • This pressure drop translates into a corresponding increase in speed.
  • a pressure drop occurs within the suction tube 3.
  • each thread not only reaches the edge zone of the air flow but also the central areas of the air flow.
  • the curvature of the high-speed section 23 also serves the purpose of guiding the thread at least in sections into the central region of the air flow.
  • the associated suction tube 3 is closed by the valve 15.
  • a thread cutter 21 is actuated, which is arranged between the suction tube and the bobbin.
  • the magnet 25 of the valve 15 is also activated and the valve is opened. As a result, the thread running in front of the suction mouth of the suction tube 3 is gripped by the suction flow and drawn into the suction tube.
  • a certain amount of air is required. This air volume is automatically provided if several winding units are operated at the same time, i. H. several suction tubes are open. In the exemplary embodiment it is assumed as an example that four suction tubes must always be open at the same time. If this condition is not met, a number of auxiliary valves 5 can be opened to supplement the air flow, so that there are always four openings for the air inlet. If only one thread has to be sucked off, all three auxiliary valves are additionally opened. If three threads are sucked off, only one of the auxiliary valves has to be opened.
  • Fig. 3 shows an alternative for an auxiliary valve 5.
  • the valve body is attached to a pressure-loaded membrane.
  • auxiliary valve looks as follows: The end of the suction pipe 1 is closed by a membrane 60.
  • This membrane 60 has a central inlet opening 61.
  • the inlet opening is closed by a valve cone 62 which is fixedly attached to the suction pipe 1.
  • the membrane In its rest position, the membrane is pressed in the closing direction by a spring 63, so that the opening 61 is completely or partially closed.
  • the suction fan 27 If e.g. B. only one thread is sucked off, the suction fan 27 generates a strong negative pressure in the suction pipe 1. Therefore, the membrane of the auxiliary valve 5 is loaded with a large pressure difference against the spring force acting on the membrane. This opens it Auxiliary valve 5. If two or more threads are sucked in, the negative pressure which arises in the suction pipe 1 is correspondingly lower. This also reduces the deflection of the membrane and the opening roller of the auxiliary valve 5.
  • FIG. 4 shows a winding device in which the payoff device according to the invention is used.
  • This winding device is also the subject of priority application DE-A-4212241.
  • the winding machine is described here again as follows:
  • the thread running through the fixed thread guide 40 and the rear sight 34 of the traversing thread guide 30 is wound as a cross winding on the rotating bobbin 14 as a result of the reciprocating movement of the traversing thread guide 30. It runs above the thread lifter 42, the knife 50 and the centering device 52 and sweeps over an essentially triangular surface (traversing triangle) which is bent around the thread overflow rod.
  • a signal indicating the end of the winding travel is triggered by a device (not shown here).
  • This signal is fed to the drive 48 of the bracket 42.
  • the signal triggers a movement of the drive 48 in the sense that the Bracket 42 is pivoted into its upright position. He lifts the thread 36 out of the rear sight 34 of the traversing thread guide 30. As a result of its tension and the inclination of the arms 42c and 42d of the bracket 42, the thread 36 slides along the bracket arm 42c or 42d lying beneath it, possibly over the projection 46 and through the gap in the rear sight 44. It comes under the projection 46. Since the bobbin continues to rotate in the meantime, the thread 36 is directed to a circumferential location of the bobbin 14, which lies essentially in the same vertical plane as the bow rear sight 44, the Centerer 50 and the fixed thread guide 40.
  • the cross winding is wrapped by a final winding 58 consisting of several thread turns.
  • the drive 48 is actuated again, this time in the sense of pivoting the bracket 42 back into its position below the traversing triangle.
  • the solenoid valve 15 (FIG. 2) is opened.
  • the thread 36 is held by the projection 46, guided against the knife edge 50a and cut thereon, ie the thread 36 is guided essentially in the aforementioned vertical plane.
  • the bracket 42 and its drive 48 is therefore identical to the thread cutter according to FIG. 2, which is only shown symbolically there.
  • the end of the thread 36 coming from the fixed thread guide 40 is guided in front of the suction pipe 3 of the suction device, is grasped by the suction flow and is guided into the waste container (see FIG. 2).
  • the other end of the thread 36 is received in the final winding 58.
  • the coil can then be removed from the holder 24 in a known manner by loosening the centering plate and replaced by an empty coil.
  • the device according to the invention is also suitable for producing yarn packages without a final winding, as may be desired under certain conditions.
  • the bracket 42 only needs to be raised so far that the thread 36 is gripped by the rear sight 44 of the bracket 42 and, when the bracket 42 is pivoted back into its lower position for cutting in the knife 50 and in front of the mouth of the suction pipe 3 becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP93104208A 1992-04-11 1993-03-16 Absaugeinrichtung für eine Vielzahl von kontinuierlich anlaufenden Fäden Expired - Lifetime EP0565878B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4212241 1992-04-11
DE4212241 1992-04-11
DE4241291 1992-12-08
DE4241291 1992-12-08

Publications (2)

Publication Number Publication Date
EP0565878A1 EP0565878A1 (de) 1993-10-20
EP0565878B1 true EP0565878B1 (de) 1995-08-30

Family

ID=25913877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104208A Expired - Lifetime EP0565878B1 (de) 1992-04-11 1993-03-16 Absaugeinrichtung für eine Vielzahl von kontinuierlich anlaufenden Fäden

Country Status (8)

Country Link
US (1) US5423170A (es)
EP (1) EP0565878B1 (es)
JP (1) JPH0640661A (es)
KR (1) KR950014146B1 (es)
CN (1) CN1028629C (es)
DE (1) DE59300517D1 (es)
ES (1) ES2076805T3 (es)
TW (1) TW231315B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4343042A1 (en) * 2022-09-13 2024-03-27 TMT Machinery, Inc. Fiber waste collection device

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Publication number Priority date Publication date Assignee Title
IT1265443B1 (it) * 1993-12-24 1996-11-22 Menegatto Srl Dispositivo di aspirazione di filato in macchine tessili
US6154569A (en) * 1995-03-16 2000-11-28 Kabushiki Kaisha Toshiba System and method for coding and/or decoding image including bit-map of different levels
EP1004534A3 (en) * 1998-11-26 2000-12-06 Murata Kikai Kabushiki Kaisha Yarn suction device and yarn suction and cut device
JP2001268565A (ja) 2000-03-15 2001-09-28 Fuji Xerox Co Ltd 画像符号化装置および画像復号装置
US6402436B1 (en) * 2000-04-28 2002-06-11 Eastman Chemical Company Method and device for conveying planar ribbon of crimped fiber using air jets
US6588056B2 (en) * 2001-10-05 2003-07-08 Pitney Bowes Inc. Web trim collection system
TWI279462B (en) * 2002-04-24 2007-04-21 Barmag Barmer Maschf Textile yarn processing apparatus having a waste collection system
WO2005049464A1 (de) * 2003-11-19 2005-06-02 Saurer Gmbh & Co. Kg Falschdralltexturiermaschine
CN102139821A (zh) * 2011-01-27 2011-08-03 上海交通大学 自动络筒机用变截面导流风道
CN102285555A (zh) * 2011-04-30 2011-12-21 上海交通大学 弯管导流通风装置
CN102704068B (zh) * 2012-06-25 2014-07-30 常德纺织机械有限公司摇架分公司 粗纱管的尾纱自动清理系统
WO2014028438A1 (en) * 2012-08-14 2014-02-20 Invista Technologies S.A.R.L. Yarn packaging and delivery system
CN104150284A (zh) * 2014-08-11 2014-11-19 张家港市华源染织有限公司 一种纺织机械的筒管
EP3268519A1 (en) * 2015-03-11 2018-01-17 Sanko Tekstil Isletmeleri Sanayi Ve Ticaret Anonim Sirketi Air-jet fancy yarn spinning system
CN105040166B (zh) * 2015-08-05 2017-07-07 管伟 一种吸收式抓棉打手
CN107090651A (zh) * 2017-04-21 2017-08-25 东华大学 喷气织机纬向停台时的纬纱去除装置
EP3838823A1 (en) * 2019-12-19 2021-06-23 Aladdin Manufacturing Corporation Yarn storage container and yarn storage system
CN111778630A (zh) * 2020-07-31 2020-10-16 常州市新创智能科技有限公司 一种碳纤维经编机吸废丝装置及使用方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4343042A1 (en) * 2022-09-13 2024-03-27 TMT Machinery, Inc. Fiber waste collection device

Also Published As

Publication number Publication date
EP0565878A1 (de) 1993-10-20
DE59300517D1 (de) 1995-10-05
US5423170A (en) 1995-06-13
KR950014146B1 (ko) 1995-11-22
KR930021841A (ko) 1993-11-23
CN1079711A (zh) 1993-12-22
TW231315B (es) 1994-10-01
CN1028629C (zh) 1995-05-31
ES2076805T3 (es) 1995-11-01
JPH0640661A (ja) 1994-02-15

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