EP0721911A1 - Vorrichtung zum automatischen Handhaben von Spulen in einer automatischen Wickelmaschine für konische Spulen - Google Patents

Vorrichtung zum automatischen Handhaben von Spulen in einer automatischen Wickelmaschine für konische Spulen Download PDF

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Publication number
EP0721911A1
EP0721911A1 EP96200007A EP96200007A EP0721911A1 EP 0721911 A1 EP0721911 A1 EP 0721911A1 EP 96200007 A EP96200007 A EP 96200007A EP 96200007 A EP96200007 A EP 96200007A EP 0721911 A1 EP0721911 A1 EP 0721911A1
Authority
EP
European Patent Office
Prior art keywords
spools
spool
carrier disk
coning
spool carrier
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Withdrawn
Application number
EP96200007A
Other languages
English (en)
French (fr)
Inventor
Roberto Badiali
Giorgio Colomberotto
Luciano Bertoli
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.)
Savio Macchine Tessili SpA
Original Assignee
Savio Macchine Tessili SpA
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 Savio Macchine Tessili SpA filed Critical Savio Macchine Tessili SpA
Publication of EP0721911A1 publication Critical patent/EP0721911A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
    • 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 present invention relates to the manufacture of high quality threads by means of the combined spinning-coning process.
  • the thread is produced and in the second step said thread is coned or rewound in order to deprive the thread of possible faulty or irregular portions from both viewpoints of aesthetical characteristics and mechanical strength, thus yielding a high-quality product.
  • the coning, or rewinding, step is generally carried out at much higher speeds than the spinning process; thus, a small number of coning stations can process the thread produced by a much larger number of spinning stations, which produce a large number of spools of wound thread which are unwound and rewound into a smaller number of cones having a by far larger size.
  • the difference between the productivity of both steps is so large that a same coning machine can be used in order to process simultaneously the threads produced by a plurality of spinning frames, and even different types of threads produced by different spinning frames.
  • the available processing capacity in the coning step is generally installed with a meaningful margin over the spinning step, so that the coning machine may process the product from the spinning frame, without getting flooded.
  • the handling requirements do not relate only to the spools filled with wound thread (i.e., the cop) and the empty tubes, but also a small, but meaningful, number of irregular spools, i.e., tubes from which the thread was not completely unwound, but for which the coning station is no longer capable of recovering additional thread amounts, because their respective thread end cannot be recovered with the means the same station is equipped with.
  • irregular spools are discharged and recycled to the spool preparation devices for thread end location and are then fed again to the coning machine, in order to exhaust the thread still wound on their tube.
  • the spools from which even such an operation is incapable of recovering the thread end are, on the contrary, discharged and submitted to separate treatments.
  • the spools produced by the spinning step are prepared again with their thread end at a predetermined position, in general with said thread end slid through the upper opening of the tube on which the thread is wound to form the spool.
  • the automatic coning unit will thus be capable of automatically catching said thread end from the spools ***as these are fed to it, and of starting the coning thereof, thus continuing the production of the cones.
  • each coming station is capable of processing thirty spools per hour, or even more, so that the overall spool handling needs relate to some thousand pieces per hour.
  • Such an amount of handling requirement is very burdensome and in the most modern facilities it is committed, as far as possible, to automatic devices, with the interventions by the attending operators being only reserved to supervision and malfunctioning addressing.
  • a different technical solution is of transferring the spools onto supporting carrier means provided with a central vertical pin and of keeping them on such carrier means also during the unwinding step, such as, e.g., according to Japanese patent JP-A-49-12128 to Kanebo, or German patents 3,213,253; 3,249,583 and 3,235,442 to Murata.
  • Such a contrivance makes it possible the spools to be transferred and processed practically without touching them and only acting on such carrier means, generally having a disk shape (i.e., a plate of circular shape).
  • the spool type can be furthermore identified by instrumental means, when a plurality of thread batches are processed simultaneously, from the carrier disk means it is supported by.
  • the handling of the spool carrier disk means is generally carried out by moving the surface on which they rest, e.g., with conveyor belts in case of rectilinear motions and revolutionary disks for circular motions.
  • the advantages for the processed spools are achieved at the cost of some drawbacks, such as, e.g., the considerable complexities as relates to the motion driving and conveyor organs.
  • a large amount of dirt is developed from the dusts and short fibers which are released by the threads, and can cause blockages or malfunctioning of the motion driving organs.
  • the matter of fact that the carrier disk means simply rests on the conveyor belt implies the risk that any motion irregularities may cause the carrier disk means to overturn and the spools to fall down.
  • the present invention relates to an apparatus for feeding the spools to an automatic coning machine and handling them inside said coning machine by using said carrier disk means, as regards both the delivery handling of spools fed to the coning stations, and the spool handling at the coming stations in order to move them between their stand-by positions, cop unwinding positions and exhausted spool tube discharging positions.
  • the purpose of the present invention is of providing an improved device for transferring and handling the spools and tubes supported on spool carrier disk means, which is free from the drawbacks displayed by the analogous devices and processes known from the prior art.
  • the spool carrier disk means (1) is constituted by a circular base (2), and a spool supporting pin constituted by a collar (3), on which the tube of the spool to be conveyed rests, and a pin (4) which engages the bottom opening of the tube (5) of the spool.
  • the diameter of the collar (3) is consequently substantially longer than of the tube, and the diameter of the pin (4) is slightly shorter than the diameter of the bore of the tube (5), so as to constrain said tube in vertical position on said pin.
  • the carrier disk means destined to support the spools to transport them are made from materials, and with such a finish degree of their bottom base, as to secure that said bottom base will display low adhesion to the flat surfaces onto which it comes to rest, so that it can be caused to slide on said surfaces by means of a very small force applied.
  • the spool to be unwound is positioned on a spool carrier disk by means of per sè known devices and methods.
  • the handling device is installed for handling the full spools to be fed to the coning stations which constitute the automatic coning machine.
  • Said device is constituted by a drive means (10), which can be realized as a belt or a chain, and is caused to run according to a horizontal closed path, i.e., loop, between two vertical-axis guide/drive means (11).
  • a drive means (10) which can be realized as a belt or a chain, and is caused to run according to a horizontal closed path, i.e., loop, between two vertical-axis guide/drive means (11).
  • the drive means (10) is constituted by a smooth or toothed belt
  • its drive means (11) can be normal pulleys.
  • the drive means (10) is constituted by a toothed belt or a chain
  • its guide means (11) can be sprockets.
  • One of both guide means (11) is provided with drive motor means (12), e.g., an electrical motor with a suitable reduction gear means.
  • pushing means (13) are fastened, which are arranged at the level of the base (2) of the spool carrier disk means and push said carrier disk means to move in the direction of said arrows.
  • Said pushing means (13) can be advantageously constituted by brackets and be rigidly constrained to the belt (10), so as to perpendicularly protrude from it, as schematically indicated in Figure 1.
  • the spool carrier disk means (1) are caused to circulate flanked by the drive means (10), resting and sliding on a support plane (14), owing to the effect of the push applied to them by the pushing means (13) and guided by a pair of guides (15) which constrain them to move on the horizontal plane according to an endless trajectory (loop) as shown in Figure 2.
  • a system for charging spool carrier disk means bearing full spools to the free positions of the conveyor system is schematically indicated.
  • the support plane (14) is advantageously realized from such materials and with such a finish degree, as to secure that it will offer a low adhesion force for the disk means which are charged onto it, so that said disk means can be caused to slide on it with a very small force.
  • the guides (15) have only been shown portionwise in order to allow the support plane (14) to be freely seen.
  • said guides (15) are installed in such a way as to lay above the base (2) of the carrier disk means and are arranged at a distance from the support plane which is slightly larger than the thickness of the base (2) of the spool carrier disk means and at a mutual cross distance which is slightly larger than the diameter of the collar (3).
  • the track constituted by the guide has, on its inner side towards said station, a branch (16) and a diverting organ constituted by a pin or blade (17), which can be commanded to protrude as an obstacle hindering the passage of the spool carrier disk means, but not of the brackets (13), along the support surface (14), with said diverting organ being commanded by means of a drive means of conventional type not indicated in figure, following a request for a spool sent by the overhanging winding unit.
  • the spool carrier disk means Owing to the combined effect of the push applied by the bracket (13), which continues to move rightwards, and of the hindrance constituted by the blade (17), the spool carrier disk means is pushed to move towards the winding station running along a portion of circular path relatively to the end of the blade (17), until it gets disengaged from the push applied by the bracket (13) and reaches the stand-by position (A) along the straight path of the spools inside the interior of the winding station.
  • a sensor means When the new spool comes to said stand-by position (A), a sensor means, not indicated in figure, signals the event and commands the diverting blade (17) to get released to its resting position.
  • the rectilinear trajectory for spool processing inside the interior of the coning station is realized with similar means to the spool handling loop, with a support plane (18), with stationary guides (19) and with pushing means. It contains at least three working positions.
  • a first position referred to as the "(A) position” is the position reached by the spool as soon as it is delivered by the transport system and waiting for being brought to the unwinding step, which takes place in the second position, i.e., the "(D) position".
  • the unwound spool which by now no longer contains its cop, or which cannot be further unwound, is brought to the "(S) position" in order to be discharged to the conveyor system designed to handle the exhausted ("empty") spools.
  • a spool in stand-by state is displayed, with its thread end (31) placed inside the top opening of the tube.
  • the reference numeral (33) indicates the suction mouth for the spool thread end, in its position (33A) in which said suction mouth delivers the thread to the suction mouth of the knotting device, and in its position (33B) in which said suction mouth takes the thread end from the spool (32).
  • the sensor of thread presence on the spool side is indicated with (34) and the thread tightener is indicated with (35).
  • the reference numeral (36) indicates the thread end suction mouth of the knotting device on spool side, in its position (36A) in which it delivers the thread end to the knotting device (37), and in its position (36B) in which it takes the thread end from the suction mouth (33).
  • the slub catcher is indicated with (38) and (39) is the suction mouth for the thread end from the cone (40), in its positions (39A) in which it catches the thread end from the cone and (39B) in which it delivers said thread end to the knotting device (37).
  • the cone drive roller is indicated with (41) and the cone carrier arm is indicated with (42).
  • the trajectory (43) of the thread between the spool and the cone is indicated in chain line.
  • the motion of the spools between (A), (D) and (S) positions is determined by the commands emitted by the coning station.
  • the spool which is being unwound (32) is considered as being exhausted by the organs of the coning machine, either because it was completely unwound, or because a certain number of thread ends search, catching and knotting attempts were unsuccessful: in that case, the coning machine pilot unit commands the change of the spool which is being unwound.
  • the command of unwound spool change is then integrated by the pilot unit both with the command for calling a new reserve spool from its stand-by position (A), which got liberated during the spool change, and with the command for exhausted spool removal.
  • the call for the new spool is implemented by causing the diverting blade (17) to get moved upwards.
  • the exhausted spool which is in (S) position must be removed at once in order to let said position free; said removal must take place at the first signal of removal path free.
  • the motion of the spools inside the interior of the coning station is caused to take place by a push action.
  • said levers (50) and (51) are realized -- at least as regards the lever (51) -- with their far ends relatively to hinges (52) and (53), respectively, with articulated joints which remain rigid when they push downwards, i.e., towards the discharge path, the collar of the spool carrier disk means with the spools on the plane of Figure 1, by being caused to revolve counterclockwise; and which, on the contrary, fold on themselves when, during their return movement back to their rest positions, they are revolved clockwise and interfere with the obstacle constituted by the collar of the spool carrier disk carrying the new spool which is being unwound and, possibly, also constituted by the collar of the new spool in stand-by position. Said articulated joints return back to their extended position after overcoming said obstacles, owing to the action of a spring of conventional type, not indicated in figure.
  • the system for handling the exhausted spools in Figure 1 is illustrated with an identical device to the handling device for the spools delivered to the coning station, and is substantially constituted by a support surface (14'), guide organs (15') and pushing organs (13') analogous to the same organs as disclosed hereinabove.
  • Such a system is installed on the front side of the coning machine which is opposite to the side of the handling system for full spools and is designed to receive the exhausted spools from the plurality of coning stations which constitute the coning machine.
  • the operations of delivery of the exhausted spools to the transport system for exhausted spools is commanded by the machine pilot unit and is conditioned by a sensor (60) of conventional type, e.g., a double-position optical sensor, which signals, with a suitable advance warning, that a bracket (13') without a spool carrier disk means is approaching.
  • the removal takes place by means of a push lever system analogous to the preceding one and constituted by a push lever (61) which pivots around the hinge (62). Said push lever is caused to revolve according to a limited revolution stroke in clockwise and counterclockwise direction, by the double acting cylinder (63).
  • the lever (61) is caused to return back to its rest position.
  • FIG 4 an alternative embodiment of the system for discharging the exhausted spools from the coning machine is shown, which adopts the transport on a conveyor tape installed along the front side of the coning machine to receive the exhausted spools removed from the plurality of coning stations which compose the machine.
  • a conveyor belt (70) is used, the width of which is substantially exceeding the cross size of the spool carrier disk means.
  • the shift of the lever (51) to its position (51') brings the spool carrier disk means with the exhausted spool, at least for a large portion thereof, already on the belt (70).
  • both guides (19) are shaped with a wider taper towards the outlet, so the discharge path for the exhausted spools is smoothly radiused with the guides (15'), with no risks that blockages may occur.
  • the scheme of Figure 4 can also be realized with a narrower conveyor tape.
  • the system for discharging the spools onto the conveyor belt uses a supplementary push device, like the lever (61) illustrated in Figure 1, which pushes the spool carrier disk means with the exhausted spool onto the conveyor belt.
  • the spool handling system disclosed up to here offers considerable advantages over the systems known from the prior art. Among them, we regard the following as being worth being mentioned.
  • the full spool feed loop can be kept continuously moving and with all, or most, of its transport positions being full with ready-to-unwind spools, so as to meet very rapidly the request for spools coming from the coning stations, and to constitute a reserve (magazine) of ready-to-unwind spools for request peaks.
  • the spools present in the loop are kept at a certain distance from each other, so as to avoid jammings and collisions during the handling.
  • Such a closed loop is kept moving by means of one single drive system, whilst the conveyor belts known from the prior art require that the guide means and the drive means are changed at each change in running direction.
  • the presence of the upper guides (15) secures that the spool carrier disk means remains always resting on the support plane and that the spool is always standing in vertical position, also when running speed and direction are changed. Therefore, no substantial limits exist for spool handling speed.
  • the support surfaces (14) and (18) can be provided with openings for removing dirt and impurities developed during the unwinding step.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP96200007A 1995-01-10 1996-01-03 Vorrichtung zum automatischen Handhaben von Spulen in einer automatischen Wickelmaschine für konische Spulen Withdrawn EP0721911A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI950028 1995-01-10
ITMI950028A IT1272876B (it) 1995-01-10 1995-01-10 Dispositivo per la movimentazione delle spole in una roccatrice automatica

Publications (1)

Publication Number Publication Date
EP0721911A1 true EP0721911A1 (de) 1996-07-17

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Application Number Title Priority Date Filing Date
EP96200007A Withdrawn EP0721911A1 (de) 1995-01-10 1996-01-03 Vorrichtung zum automatischen Handhaben von Spulen in einer automatischen Wickelmaschine für konische Spulen

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EP (1) EP0721911A1 (de)
CN (1) CN1138642A (de)
IT (1) IT1272876B (de)

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* Cited by examiner, † Cited by third party
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CN103668601B (zh) * 2013-11-30 2015-12-02 天津宏大纺织机械有限公司 用于粗细联输送***的活动纱架
CN103708291B (zh) * 2013-12-30 2017-02-15 浙江日发纺织机械股份有限公司 络筒机纸管输送机构
CN106938793B (zh) * 2016-01-04 2024-03-19 佛山市宝索机械制造有限公司 高效的纸卷分配装置
JP2018065644A (ja) * 2016-10-18 2018-04-26 村田機械株式会社 トレイ搬送装置、糸巻取設備、糸巻取システム、トレイ搬送装置の駆動方法、及び、糸巻取システムの起動方法
CN109368402B (zh) * 2018-10-15 2024-01-30 江阴市凯业纺织机械制造有限公司 一种自动络筒机用投纱***
CN110386508B (zh) * 2019-07-19 2023-07-21 青岛宏大纺织机械有限责任公司 一种自动络筒机管纱处理输送装置及输送方法
CN110386506B (zh) * 2019-07-19 2023-12-19 青岛宏大纺织机械有限责任公司 一种细络联管纱输送***及输送方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1571158A (de) * 1967-07-01 1969-06-13
DE3637172A1 (de) * 1986-10-31 1988-05-05 Schlafhorst & Co W Verfahren und vorrichtung zum erhoehen der spulgeschwindigkeit eines spulautomaten
WO1990003460A1 (de) * 1988-09-24 1990-04-05 Maschinenfabrik Rieter Ag Spinnmaschine mit einem endlosförderer
DE4116083A1 (de) * 1990-05-16 1991-11-21 Murata Machinery Ltd Transportanlage fuer garnvorlagespulen
DE4116555A1 (de) * 1990-05-21 1991-11-28 Murata Machinery Ltd Foerdervorrichtung fuer garnlieferspulen in einer dubliereinrichtung
DE4317266A1 (de) * 1992-05-22 1993-11-25 Murata Machinery Ltd Vorrichtung zum Zuführen von Spinnspulen
CH684009A5 (de) * 1991-01-29 1994-06-30 Isidor Fritschi Katharina Buec Textilmaschine.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1571158A (de) * 1967-07-01 1969-06-13
DE3637172A1 (de) * 1986-10-31 1988-05-05 Schlafhorst & Co W Verfahren und vorrichtung zum erhoehen der spulgeschwindigkeit eines spulautomaten
WO1990003460A1 (de) * 1988-09-24 1990-04-05 Maschinenfabrik Rieter Ag Spinnmaschine mit einem endlosförderer
DE4116083A1 (de) * 1990-05-16 1991-11-21 Murata Machinery Ltd Transportanlage fuer garnvorlagespulen
DE4116555A1 (de) * 1990-05-21 1991-11-28 Murata Machinery Ltd Foerdervorrichtung fuer garnlieferspulen in einer dubliereinrichtung
CH684009A5 (de) * 1991-01-29 1994-06-30 Isidor Fritschi Katharina Buec Textilmaschine.
DE4317266A1 (de) * 1992-05-22 1993-11-25 Murata Machinery Ltd Vorrichtung zum Zuführen von Spinnspulen

Also Published As

Publication number Publication date
ITMI950028A1 (it) 1996-07-10
IT1272876B (it) 1997-07-01
CN1138642A (zh) 1996-12-25
ITMI950028A0 (it) 1995-01-10

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