EP0067118B1 - Dispositif de fixation automatique de l'extrémité terminale du fil d'une pelote pour machines à enrouler les fils en pelote - Google Patents

Dispositif de fixation automatique de l'extrémité terminale du fil d'une pelote pour machines à enrouler les fils en pelote Download PDF

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Publication number
EP0067118B1
EP0067118B1 EP82810198A EP82810198A EP0067118B1 EP 0067118 B1 EP0067118 B1 EP 0067118B1 EP 82810198 A EP82810198 A EP 82810198A EP 82810198 A EP82810198 A EP 82810198A EP 0067118 B1 EP0067118 B1 EP 0067118B1
Authority
EP
European Patent Office
Prior art keywords
thread
mandrel
winding
rotary shaft
channels
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
Application number
EP82810198A
Other languages
German (de)
English (en)
Other versions
EP0067118A1 (fr
Inventor
Rudolf Knecht
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.)
G AND W MASCHINEN AG
Original Assignee
G AND W MASCHINEN 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 G AND W MASCHINEN AG filed Critical G AND W MASCHINEN AG
Publication of EP0067118A1 publication Critical patent/EP0067118A1/fr
Application granted granted Critical
Publication of EP0067118B1 publication Critical patent/EP0067118B1/fr
Expired 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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/64—Winding of balls
    • B65H54/66—Winding yarns into balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H65/00—Securing material to cores or formers
    • B65H65/005—Securing end of yarn in the wound or completed package
    • 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 device for automatically setting the outer thread end of balls on automatic ball winding machines with at least one winding mandrel, a winding arm, a thread guide and a cutting device for the thread to be wound, and a thread guide means at the front end of the winding mandrel, which has several radially extending from the center, has thread channels formed on the front surface of the front end of the winding mandrel.
  • DE-C-2 513 144 and FR-A-1 057920 shows a shield mandrel for known automatic coil winding machines, which can have a number of horizontally or obliquely arranged winding mandrels as spindles. Each winding mandrel is assigned a rotating winding arm, a cutting device, a thread guide and gripping devices for pulling the balls from the winding mandrels.
  • the thread is guided through the winding arm and the thread guides in front of the front end of the winding mandrel, separated by the cutting device, and the thread end is sucked into a suction tube arranged inside the mandrel and thereby held or fixed.
  • the suction tube extends through the entire winding mandrel and is simultaneously designed as a plunger for actuating the shield struts of the shield mandrel.
  • a vacuum pump which provides the suction power required to fix the thread end.
  • the energy required to generate the suction flow in the suction tube can be significantly higher than the energy required to drive the winding mandrel.
  • the thread end can be sucked more or less well into the suction tube, which results in considerable differences in the workflow and operation of the winding device. This requires frequent adaptation of the winding device to the different types of yarn or thread, or malfunctions in the system have to be accepted, which leads to undesired interruptions in operation.
  • DE-C-2 513144 describes a winding mandrel which is equipped with a mechanical thread gripping means instead of a suction tube.
  • the thread gripping means consists of a number of hooks, which are arranged at the front end of the winding mandrel and concentrically around its axis. The hooks are aligned radially to the center of the mandrel.
  • the thread is passed over the front end of the winding mandrel after the winding process is complete and should catch in the hook. The thread often falls out of the hooks again, or it is not caught by any of the hooks from the beginning if it is parallel to them. From this point of view, this device does not guarantee proper functioning.
  • fibers and lint remain in the hook, which after a certain time hinders or completely prevents the thread end from being fixed.
  • the thread end itself can also get caught on the hook, particularly when the thread is roughened, as a result of which the ball is damaged or gets stuck when it is pulled off.
  • FR-A-1 057 920 also shows an umbrella mandrel with a winding arm and a cutting device.
  • the cut end of the thread is fixed in that the winding thread is inserted through the winding arm into a hook at the front end of the winding mandrel.
  • This hook is drawn with the inserted thread end through a pull rod into the inner cavity of the core of the winding mandrel designed as a tube.
  • the thread is thereby fixed and drawn into the inside of the ball when the ball is pulled off the umbrella mandrel.
  • a disadvantage of this device is that the winding thread can get caught in the hook and, as a result, the skein cannot be completely pulled off.
  • the invention is based on the object of avoiding the disadvantages of the known prior art and of specifying a solution in which no additional drive power is required for the secure fixing of the thread end, the thread end after it has been passed over the front end of the winding mandrel , can be fixed in any position and the thread cannot get caught on the thread gripping means.
  • the invention is also intended to enable all thread thicknesses and thread types to be treated in the same way.
  • the invention solves this problem of a closure arranged in front of the front surface and assigned to each channel and movable relative to the front surface, wherein one closure part at least partially covers the openings of the thread channels in the region of the front surface when the thread end is fixed in the thread channel.
  • the closure parts form an annular closing crown which has the same number of thread channels as the front end of the Winding mandrel, this front end being formed by an end cap and the closing crown being connected to an axis of rotation arranged inside the winding mandrel. This axis of rotation and the closing crown can be pivoted about the longitudinal axis of the axis of rotation or the winding mandrel relative to the end cap and the outer parts of the winding mandrel.
  • the thread channels in the closing crown have different dimensions in the direction of the longitudinal axis of the winding mandrel and are the same width in the forward-facing part and at least twice as wide at the foot as the thread channels in the end cap at the front end of the mandrel.
  • the closing crown and the axis of rotation can further be pivoted by at least the angle which is formed by the side surfaces of a thread channel on the end cap and by the central axis of the axis of rotation as a corner point.
  • the axis of rotation is arranged within this plunger and the plunger is surrounded by a rotary guide.
  • This rotary guide is firmly connected to the sleeve and the guide hub of the winding mandrel and rotates with the entire winding mandrel.
  • a guide track is arranged in the rotary guide, in which a cam connected to the axis of rotation engages.
  • This cam is guided through the wall of the tappet, this passage having the shape of an elongated hole through the wall of the tappet in the direction of the circumference of the tappet, and thus the opening is larger than the diameter of the cam.
  • the device according to the invention is operated in such a way that, during the winding process, one thread channel each of the closing crown and the end cap are aligned with one another at the front end of the winding mandrel and form a common thread channel.
  • the ball is released and at the same time the axis of rotation in the winding mandrel is pivoted and thus the closing parts of the closing crown are pushed in front of the openings of the thread channels on the end cap.
  • the thread is then cut, the ball is pulled off the mandrel, and the end of the thread is drawn into the ball and then pulled out of the pair of thread channels on the end cap and closing crown.
  • the shield struts are opened and closed by a plunger that is axially displaceable in the winding mandrel, it is advantageous to move the axis of rotation with the plunger in the longitudinal direction and at the same time to pivot it relative to the plunger, whereby the closing crown opposite the end cap at the front end of the Winding mandrel rotated and the closing parts of the closing crown are pushed in front of the openings of the thread channels.
  • the advantages achieved by the invention are essentially to be seen in the fact that in addition to the drive for the winding mandrel and winding arm, no additional drives and energy consumers are required for fixing the thread end.
  • the winding process can be interrupted in any position and the thread with the thread guide brought to the front end of the winding mandrel and fixed there. A fixation of the holding position of the mandrel and the winding arm is not necessary, which results in a significant simplification of the operation.
  • the arrangement and design of the thread channels in the closing crown and the end cap can be varied over a wide range and adapted to the different operating conditions. Threads with different diameters and with thickening as well as roughened or not roughened yarns can be determined or held with the same device without changes and disturbances.
  • the shield mandrel 1 shown in Figure 1 consists of a sleeve 12, a guide hub 11 and longitudinal struts 2 and side struts 3, 4 and 5.
  • the sleeve 12 is connected via the flange 13 to a bearing and drive unit, not shown.
  • the entire winding mandrel 1 can be rotated via this drive and bearing unit, and thus a thread can be wound onto the struts 2, 3, 5.
  • a tubular plunger 7, which extends through the entire winding mandrel 1, is arranged in the interior of the mandrel 1. This plunger 7 can be moved back and forth in the guide hub 11 in the direction of the arrow 28 along the longitudinal axis 22.
  • the plunger 7 is actuated by an auxiliary device, not shown, located at the rear end of the winding mandrel 1.
  • strut holders 14, 15 are arranged, which are fixed in position by locking rings 32, 33 and 34.
  • the longitudinal struts 2 are connected to the guide hub 11 and the strut holders 14, 15 via the side struts 3, 4 and 5 connected.
  • the front end of the plunger 7 is firmly connected to an end cap 10 shown in FIG. 2.
  • This end cap 10 forms the front surface 19 of the mandrel 1, and is provided in the rear area with guide slots 35 for the side struts 3.
  • Thread channels 18 are machined into the front surface 19 and run radially outward from the axis 22. In the example shown, six such thread channels 18 are attached.
  • a closing crown 9 is located in the cavity 36 of the end cap 10.
  • FIG. 3 shows a frontal view of the front end of the winding mandrel 1, consisting of the closing crown 9, end cap 10, axis of rotation 6 and plunger 7 is shown with an inserted thread 30.
  • FIG. 4 shows a frontal view of the front end of the winding mandrel 1 shown in FIG. 3.
  • the closing crown 9 has an inner cavity 37 and a cylindrical jacket 38. This jacket 38 has a collar 39 in the front area, which has the same outer diameter as the end cap 10.
  • thread channels 21 are also incorporated in the direction of the longitudinal axis 22 and are open towards the front. The same number of thread channels 21 is arranged in the closing crown 9 as the end cap 10 has thread channels 18.
  • the thread channels 21 are the same width in the front part 23 as the thread channels 18 and in the rear part 24 behind the collar 39 at least twice as wide as the thread channels 18 in the end cap 10. This forms closure parts 20 on the collar 39, which along the front surface 19 can be pushed over the openings of the thread channels 18 in the end cap 10. Due to the widened rear part 24 of the thread channels 21 in the closing crown 9, the full opening width of the channels 18 is still retained.
  • the closure parts 20 are rounded and inclined on all sides in the region of the front surface 40, so that a thread 30 stretched over the front surface 40 slips in any case into a pair of thread channels 21 or 18.
  • the closing crown 9 is fixed to an axis of rotation 6.
  • This axis of rotation 6 is arranged in the center of the plunger 7 and extends into the rear region of the guide hub 11.
  • a rotary guide 8, which surrounds the plunger 7, is firmly connected to the guide hub 11 via the connecting pin 17.
  • a curved guide track 25 is machined into the wall of the rotary guide 8.
  • a cam 26 slides in this guideway 25, which cam is firmly connected to the rear end of the axis of rotation 6.
  • This cam 26 is guided through an opening 27 in the wall of the plunger 7.
  • This opening 27 has the shape of an elongated hole and is designed in such a way that the cam 26 can execute the desired pivoting movement when it is displaced in the guideway 25.
  • the plunger 7 remains in its position since it is fixed relative to the guide hub 11 and the sleeve 12 via the end cap 10 and the struts 2, 3, 4 and 5.
  • the guide hub 11 and the sleeve 12 are firmly connected to one another via a connecting pin 16.
  • the thread end 30 is fixed in such a way that after completion of the winding process, the thread 30 is guided by a thread guide (not shown) in front of the front surface 40 of the closing crown 9 and the front surface 19 of the end cap 10 and placed over the front end of the winding mandrel 1.
  • a thread guide (not shown) in front of the front surface 40 of the closing crown 9 and the front surface 19 of the end cap 10 and placed over the front end of the winding mandrel 1.
  • a thread guide (not shown) in front of the front surface 40 of the closing crown 9 and the front surface 19 of the end cap 10 and placed over the front end of the winding mandrel 1.
  • the fixed thread end 30 is initially drawn into the interior of the ball and pulled out of the thread channels 18 and 21 when the ball is further pulled off the winding mandrel 1.
  • the plunger 7 is pulled back into the winding mandrel 1, thereby pivoting the axis of rotation 6 and the closing crown 9 against the direction of the arrow 29 and opening the openings of the thread channels 18 again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Sewing Machines And Sewing (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Winding Filamentary Materials (AREA)

Claims (5)

1. Dispositif de fixation automatique de l'extrémité de fil externe de pelotes sur des pelotonneuses automatiques, comprenant au moins un mandrin d'enroulement (1), un bras d'enroulement, un guide-fil et un dispositif de coupage ainsi qu'un moyen de guidage de fil à l'extrémité avant du mandrin d'enroulement (1) qui présente plusieurs canaux pour fil qui s'étendent radialement depuis le centre et qui sont formés sur la surface frontale (19) de l'extrémité avant (10) du mandrin d'enroulement (1), caractérisé par une fermeture qui est agencée devant la surface frontale (19) et est adjointe à chaque canal (18) et qui est déplaçable par rapport à la surface frontale (19), une pièce de fermeture (20) recouvrant chaque fois au moins partiellement les ouvertures des canaux pour fil (18) dans la zone de la surface frontale (19) lorsqu'une extrémité de fil (30) est fixée dans le canal pour fil (18).
2. Dispositif suivant la revendication 1, caractérisé en ce que les pièces de fermeture (20) sont des parties d'une couronne de fermeture annulaire (9) qui présente au moins trois canaux pour fil (21), en ce que cette couronne de fermeture (9) présente le même nombre de canaux pour fil (21) que le capuchon de fermeture (10) formant l'extrémité avant du mandrin (1), en ce que la couronne de fermeture (9) est reliée à un axe de pivotement (6) agencé à l'intérieur du mandrin (1) et en ce que l'axe de pivotement (6) et la couronne de fermeture (9) sont capables de pivoter par rapport au capuchon de fermeture (10) du mandrin d'enroulement (1), autour de l'axe longitudinal (22) de l'axe de pivotement (6).
3. Dispositif suivant la revendication 2, caractérisé en ce que les canaux pour fil (21) de la couronne de fermeture (9) sont, dans leur partie dirigée vers l'avant (23), de même largeur que les canaux pour fil (18) du capuchon de fermeture (10) de l'extrémité avant du mandrin (6) et, à leur base (24), au moins-deux fois aussi larges que lesdits canaux pour fil (18).
4. Dispositif suivant l'une des revendications 2 et 3, caractérisé en ce que la couronne de fermeture (9) et l'axe de pivotement (6) sont capables de pivoter d'au moins l'angle (31) qui est déterminé par les faces latérales d'un canal pour fil (18) du capuchon de fermeture (10) et par l'axe (22) de l'axe de pivotement (6), comme sommet de l'angle.
5. Dispositif suivant l'une des revendications 1 à 4, comprenant en particulier un mandrin de protection ou extensible (1) et un poussoir (7) capable de coulisser d'une manière connue dans le mandrin (1) suivant la direction longitudinale, pour ouvrir et pour fermer les branches de protection ou branches extensibles (3, 4, 5) caractérisé en ce qu'un guidage de pivotement (8), relié au moyeu de guidage (11) et à la douille (12) du mandrin (1) et présentant une voie de guidage (25) incurvée, est agencé autour de l'axe de pivotement (6), en ce qu'une saillie (26) agencée sur l'axe de pivotement (6) pénètre dans cette voie de guidage (25), en ce que cette saillie (26) est guidée à travers une ouverture (27) de la paroi du poussoir (7) et en ce que l'ouverture (27) de la paroi du poussoir est, dans le sens de la périphérie du poussoir (7), plus grande que le diamètre de la saillie (26).
EP82810198A 1981-06-05 1982-05-12 Dispositif de fixation automatique de l'extrémité terminale du fil d'une pelote pour machines à enrouler les fils en pelote Expired EP0067118B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3699/81 1981-06-05
CH3699/81A CH650224A5 (de) 1981-06-05 1981-06-05 Vorrichtung und verfahren zum automatischen festlegen des aeusseren fadenendes von knaeueln an knaeuelwickelautomaten.

Publications (2)

Publication Number Publication Date
EP0067118A1 EP0067118A1 (fr) 1982-12-15
EP0067118B1 true EP0067118B1 (fr) 1986-11-12

Family

ID=4261621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82810198A Expired EP0067118B1 (fr) 1981-06-05 1982-05-12 Dispositif de fixation automatique de l'extrémité terminale du fil d'une pelote pour machines à enrouler les fils en pelote

Country Status (4)

Country Link
US (1) US4483489A (fr)
EP (1) EP0067118B1 (fr)
CH (1) CH650224A5 (fr)
DE (1) DE3274231D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH667068A5 (de) * 1985-06-11 1988-09-15 Gw Maschinen Ag Verfahren zum automatischen festlegen der fadenenden von knaeueln.
US5007594A (en) * 1987-05-26 1991-04-16 Acushnet Company Preparation of wound golf ball cores
US5133509A (en) * 1987-05-26 1992-07-28 Acushnet Company Preparation of wound golf ball cores
US4995569A (en) * 1989-01-20 1991-02-26 Alexander James L Package adapter
CN2344362Y (zh) * 1998-11-13 1999-10-20 刘克余 多球无接头绒线球及其成球装置
CN110407033A (zh) * 2019-07-18 2019-11-05 郑州四维新材料技术研究院有限公司 一种可变直径的收丝筒架

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH282330A (de) * 1950-07-10 1952-04-30 Buechi Geb Knäuelwickelvorrichtung für Garn und Strickwolle.
FR1057920A (fr) * 1951-12-20 1954-03-11 Ryo Catteau Sa Ets Dispositif de rentrage des fils sur machines à pelotonner
CH584648A5 (fr) * 1974-09-30 1977-02-15 Gw Maschinen Ag
DE2643747A1 (de) * 1976-09-29 1978-03-30 Croon Lucke Maschinen Kontraktibler wickeldorn
US4300727A (en) * 1979-06-28 1981-11-17 G & W Machinery Inc. Mandrel for a ball winding machine
DE3023040A1 (de) * 1979-09-08 1982-01-14 Ott & Kolbus GmbH & Co Textilmaschinen KG, 8960 Kempten Schirmdorn fuer knaeuel-wickelautomaten

Also Published As

Publication number Publication date
EP0067118A1 (fr) 1982-12-15
US4483489A (en) 1984-11-20
CH650224A5 (de) 1985-07-15
DE3274231D1 (en) 1987-01-02

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