WO2017103773A1 - Dispositif de verrouillage annulaire simplifié pour l'enroulement de bobines - Google Patents

Dispositif de verrouillage annulaire simplifié pour l'enroulement de bobines Download PDF

Info

Publication number
WO2017103773A1
WO2017103773A1 PCT/IB2016/057562 IB2016057562W WO2017103773A1 WO 2017103773 A1 WO2017103773 A1 WO 2017103773A1 IB 2016057562 W IB2016057562 W IB 2016057562W WO 2017103773 A1 WO2017103773 A1 WO 2017103773A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
engaging elements
inner ring
outer ring
locking device
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.)
Ceased
Application number
PCT/IB2016/057562
Other languages
English (en)
Inventor
Fulvio CINQUETTI
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.)
HTFS High Tech Friction Shafts Srl
Original Assignee
HTFS High Tech Friction Shafts Srl
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 HTFS High Tech Friction Shafts Srl filed Critical HTFS High Tech Friction Shafts Srl
Publication of WO2017103773A1 publication Critical patent/WO2017103773A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/246—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by relative rotation around the supporting spindle or core axis
    • B65H75/247—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by relative rotation around the supporting spindle or core axis using rollers or rods moving relative to a wedge or cam surface

Definitions

  • the present invention relates to an annular device of the type used for locking and allowing the winding of reels of tape in multiple winding machines.
  • the annular devices are provided with engaging elements which project radially in a controlled manner from the peripheral surface of the annular devices.
  • the annular devices each comprise two rings which are coaxial and radially superimposed, with the inner ring which is mounted on a rotational spindle and the outer ring which has projecting engaging elements (for example in the form of spheres or rolling cylinders).
  • the outer ring is rotatable through a certain angle on the inner ring, so as to move between a first angular rest position, in which the engaging elements are retracted or elastically retractable towards the inside of the outer ring, and a second angular locking position, in which the engaging elements are pushed outwards.
  • the cores of the reels may easily slide along the shaft so as to be able for example to be mounted or removed, while in the second position the cores of the reels are locked by the engaging elements so as to rotate together with the shaft.
  • a same shaft may be provided with as many as fifty or so annular devices, each with the outer ring rotatable independently of the other ones and a more or less large number of reel cores may be mounted on the friction shaft thus composed.
  • the cores When the devices have the outer ring in the rest position, the cores may be mounted on the shaft and slid along it until they reach they their correct position along the shaft.
  • a small rotation of the cores causes the rotation towards the locking position of the outer ring of all the devices which are situated inside the cores on which winding is to be performed.
  • the reel may in turn rotate with friction relative to the shaft. As a result it is thus possible to obtain variations in the pulling force of the single reels while using the same winding shaft.
  • a suitable reverse rotation of the reels causes the rotation, back towards the rest position, of the outer ring of all the devices on which a reel is mounted, so as to allow the removal of the reels by axially sliding them along the shaft as far as their free end.
  • the grooves must be suitably spaced from each other, the number of engaging elements is limited and the grooves must often be arranged alternating in two rows in order to avoid limiting excessively the angle of rotation of the rings, said angle of rotation depending on the length of the grooves.
  • the general object of the present invention is to provide a locking device which is simple to construct and assemble and has several satisfactory characteristics during use.
  • an annular locking device for the winding of reels, comprising an inner ring and an outer ring coaxial with each other and radially superimposed so as to be rotatable relative to each other, between inner ring and outer ring there being arranged engaging elements which protrude radially from openings in the outer ring, the outer ring being rotatable on the inner ring between a first angular rest position and a second annular locking position, in the first angular rest position the engaging elements being elastically retractable against the action of elastic means by a greater amount than in the second angular locking position, characterized in that the inner ring has a circumferential groove which houses engaging elements and which has a bottom shaped so as to vary the depth of the groove along its extension around the inner ring with an alternation of deeper zones and shallower zones arranged so that, upon rotation of the outer ring between the angular rest position and the angular locking position, the engaging elements in the groove all
  • a rotational shaft with a plurality of these devices is also claimed.
  • FIG. 1 shows a partial schematic perspective view of a shaft provided with annular devices according to the invention
  • FIG. 2 shows a cross-sectional view of an annular device provided according to the invention, along the line II- II of Figure 3;
  • FIG. 3 is a cross-sectional view of the device according to the invention along the line III- III of Figure 2;
  • FIG. 4 is a schematic side view of a part of the device.
  • Figure 1 shows in schematic form devices 10 according to the invention which are mounted side-by-side on a rotational shaft 11 of a known multiple winding machine (not shown).
  • the devices will obviously be used in a variable number depending on whether longer or shorter shafts are to be provided or a greater or smaller number of adjacent reels are to be wound (a reel, denoted by 30, is schematically shown in cross-section in Figure 1), as will be obvious to the person skilled in the art.
  • the device 10 comprises two superimposed coaxial rings 12 and 13.
  • the innermost ring 12 is intended to be mounted on the rotational shaft, optionally with the arrangement, in between, of known friction elements (for example a layer of felt or the like) and, if required, with known controlled friction adjustment means (such as pneumatic chambers or the like) which may be easily imagined by the person skilled in the art and therefore are not further described or shown here.
  • known friction elements for example a layer of felt or the like
  • known controlled friction adjustment means such as pneumatic chambers or the like
  • Engaging elements 14 project radially at intervals along the periphery through holes in the outermost ring 13.
  • the dimensions of the holes are such as to prevent the engaging elements from coming out completely.
  • the rings and the engaging elements are advantageously made of metal.
  • the outer ring is rotatable axially relative to the inner ring so as to move between a first angular rest position, in which the engaging elements project elastically by means of suitable elastic means, and a second locking position, in which the elements may retract elastically less than in the rest position so as to lock the core of a reel 30 fitted on a rotational shaft provided with the device.
  • This smaller degree of retraction may also be reduced to zero and the engaging elements pushed outwards in a substantially rigid manner.
  • the rotation of the outer ring on the inner ring is limited between the angular rest position and the locking position.
  • the engaging elements 14 are preferably realized as rolling elements and, advantageously, are in the form of spheres. Rolling cylinders may also be used if required.
  • the engaging elements project in an equidistant manner along the circumference of the device. They are for example arranged along five generatrices of the outer ring, spaced at intervals of 72° from each other. Obviously, it is understood that the number of engaging elements may be different from that shown, depending on the specific requirements, as will also become clear below.
  • the engaging elements protrude from the outer ring 13 in pairs arranged side-by-side on the same generatrix of the outer ring.
  • the engaging elements may therefore be for example ten in number.
  • Figure 2 shows a cross-sectional view of the device in a plane perpendicular to the axis of rotation of the rings.
  • the engaging elements 14 are housed so as to slide inside a circumferential groove 15 which may also extend over most of the circumference of the inner ring 12.
  • the groove advantageously extends over all or nearly all the circumference and is interrupted in only one zone 29 of the circumference.
  • the bottom 16 of the groove is shaped so as to vary the depth of the groove along its extension around the ring with alternating deeper zones and shallower zones, thus forming a cam surface.
  • the passage between deeper zones has a continuous progression.
  • the alternating arrangement has the same interval as the engaging elements around the ring.
  • the engaging elements 14 Upon rotation of the outer ring, the engaging elements 14 all pass simultaneously from a deeper zone which corresponds to the angular rest position of the device (shown in solid lines in Figure 2) to a shallower position which corresponds to the angular locking position of the device (shown in broken lines in Figure 2).
  • an elastic plate segment 17 (for example made of spring steel) is provided on the bottom of the groove 15.
  • the plate is fastened inside the groove at its two ends.
  • two pins transverse to the groove may be used, the two ends of the plate being arranged underneath said pins.
  • the ends may also be wound at least partially around the pins.
  • the ends of the plate must preferably have a certain amount of sliding play. Therefore the ends of the plate are rolled up at a certain distance after the plate has passed underneath the pins.
  • the plate has a substantially circular progression inside the groove, advantageously resting on the bottom of the groove inside the shallower zones.
  • one end of the plate 17 is close to a shallower zone, corresponding to an angular locking position for an engaging element 14 (at the top on the left in Figure 2), while the other end of the plate is close to a zone of the groove which is deeper, corresponding to an angular rest position of an engaging element 14 (at the top on the right in Figure 2) which is circumferentially close to the first engaging element.
  • the end-of-travel during rotation of the outer ring on the inner ring may consist of the pins 18 and 19 on which two engaging elements 14 alternately rest so as to determine respectively the two locking and rest positions.
  • each engaging element slides on the plate 17 between its rest position (shown in solid lines in Figure 2), where the plate is further removed from the bottom of the groove, and the engaging element, if pushed from the outside, may retract elastically towards the inside of the ring, and its locking position (shown in broken lines in Figure 2), where the plate is less removed from the bottom of the groove, or substantially resting on the bottom of the groove and the engaging element is substantially in its locking position without any (or with less) possibility of retracting elastically.
  • the engaging elements may be arranged side-by-side in pairs on the same plate along two circumferential lines. Alternatively, they may be arranged in a single row or be arranged alternately staggered on two circumferential lines. In the even of elements arranged side-by-side or staggered, two parallel elastic plates may also provided, i.e. one for each circumferential line of engaging elements 14. Other combinations of engaging elements may be easily provided by suitably positioning the holes on the outer ring through which the engaging elements protrude.
  • a device 20 for elastically coupling together the two rings in the rest position has also been provided.
  • This coupling device is advantageously located in the interrupted zone of the groove 15 at the two ends of the plate 17 and preferably comprises a coupling element 21 (for example a small sphere) which is pushed by a spring 22 (for example a helical spring housed inside a suitable seat in the inner ring) so as to project radially from the inner ring and engage inside a matching seat 23 (for example a small hole) in the outer ring.
  • a suitable rotational torque applied to the rings disengages the coupling element 21 from the seat and allows the normal relative rotation of the rings.
  • the coupling element 21 With the return of the outer ring into the rest position the coupling element 21 returns elastically into its seat in the outer ring and the rings are again elastically engaged so as to prevent their free relative rotation.
  • the elastic thrust of the spring 22 will be chosen depending on the desired rotational torque necessary for moving the outer ring from the rest position on the inner ring. This torque will be preferably chosen so that it may be overcome at the start of the winding operations for a reel on the device 10, but such that at the same time it cannot be overcome by the normal forces which during use act on the devices 10 which do not support any reels and which therefore would otherwise be able to rotate freely.
  • the elastic coupling device 20 as illustrated has been found to be particularly advantageous, it may also be realized with a different elastic element, for example an elastic plate, and the coupling element may have a different form, as may be now easily imagined by the person skilled in the art.
  • the coupling element may also be a pin with a rounded head which is fixed onto the plate itself so as to project towards a matching engaging seat on the ring. Assembly of the device may also be reversed as regards the inner ring and outer ring, namely with the engaging seat in the inner ring and the elastic element and coupling element on the outer ring.
  • the inner ring in order to block the axial displacement of the outer ring on the inner ring during use of the device, allowing at the same time the desired angular rotation, the inner ring has advantageously, on one side, a step 24 along a circumferential edge thereof, while a locking insert 25 with wall transverse to the axis of the rings is engaged with the inner ring on the other side.
  • the locking insert 25 may be realized in the form of a flat ring fastened to the side wall of the inner ring (for example by means of a force-fit onto a suitable circumferential side edge 26 of the inner ring).
  • the locking element could comprise a suitable tubular portion which is force- fitted inside the inner ring.
  • the outermost peripheral edge of the locking insert and the opposite step 24 of the inner ring form a channel inside which the outer ring is rotatably seated.
  • each engaging element is provided with a transverse passage 31 inside the groove 15 which connects the inside of the groove to the side wall of the inner ring.
  • the dimensions and the position of the passage which is realized advantageously as an open channel radially in relation to the ring, are such as to allow the engaging element (or two adjacent engaging elements) to pass through towards the groove when the outer ring, together with the engaging elements, is slid axially on top of the inner ring.
  • the elastic coupling device 20 is inserted on the inner ring before mounting the outer ring.
  • an annular device of the type used for locking and allowing winding of reels of tape which has a simple and reliable structure and which allows a suitable elastic force to be exerted on the engaging elements.
  • the long plate furthermore allows more precise adjustment of the elastic pressing force of the plate during the whole movement of the engaging elements.
  • the plate is moreover curved elastically around the inner ring, thus providing a leaf spring effect.
  • the device may reduce or also eliminate the problem of the devices according to the prior art which have an unstable rest position.
  • the device may also have a large number of engaging elements without substantially increasing the complexity.
  • the groove 15 may also be divided into one or more parts, so as to have for example a series of plates 17, each of which acts on a certain series of engaging elements along the circumference of the annular device.

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Winding Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne un dispositif de verrouillage annulaire (10) pour l'enroulement de bobines, comprenant une bague interne (12) et une bague externe (13) coaxiales l'une avec l'autre et superposées sur le plan radial de manière à pouvoir tourner l'une par rapport à l'autre. Entre la bague interne (12) et la bague externe (13) sont disposés des éléments de mise en prise (14) qui font saillie au plan radial à partir d'ouvertures dans la bague externe, la bague externe pouvant tourner sur la bague interne entre une première position de repos angulaire et une seconde position de verrouillage angulaire. Dans la première position de repos angulaire, les éléments de mise en prise (14) peuvent être rétractés de manière élastique contre l'action d'un moyen élastique d'une quantité supérieure par rapport à dans la seconde position de verrouillage angulaire. La bague interne présente une rainure circonférentielle (15) qui loge les éléments de mise en prise (14) et qui présente un fond (16) formé pour modifier la profondeur de la rainure le long de son extension autour de la bague interne avec une alternance entre les zones plus profondes et les zones moins profondes disposées de sorte que, lors de la rotation de la bague externe entre la position de repos angulaire et la position de verrouillage angulaire, les éléments de mise en prise (14) dans la rainure passent tous simultanément d'une zone plus profonde à une zone moins profonde. Une plaque élastique (17) qui constitue ledit moyen élastique est prévue entre le fond de la rainure (15) et les éléments de mise en prise (14) logés à l'intérieur.
PCT/IB2016/057562 2015-12-16 2016-12-13 Dispositif de verrouillage annulaire simplifié pour l'enroulement de bobines Ceased WO2017103773A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102015000083706 2015-12-16
ITUB2015A009556A ITUB20159556A1 (it) 2015-12-16 2015-12-16 Dispositivo anulare semplificato di blocco per l'avvolgimento di bobine

Publications (1)

Publication Number Publication Date
WO2017103773A1 true WO2017103773A1 (fr) 2017-06-22

Family

ID=55642738

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/057562 Ceased WO2017103773A1 (fr) 2015-12-16 2016-12-13 Dispositif de verrouillage annulaire simplifié pour l'enroulement de bobines

Country Status (2)

Country Link
IT (1) ITUB20159556A1 (fr)
WO (1) WO2017103773A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115594023A (zh) * 2022-10-10 2023-01-13 北京中丽制机工程技术有限公司（Cn） 一种长丝卷绕机的管筒的固定装置
WO2024085817A1 (fr) 2022-10-17 2024-04-25 Reymak Maki̇ne Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Bague de frottement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2300460A (en) * 1995-05-03 1996-11-06 Kampf Gmbh & Co Maschf Friction coupled core support device
EP2345614A1 (fr) * 2010-01-15 2011-07-20 I.E.S International Expanding Shafts S.R.L. Bague de frottement pour arbres de frottement, en particulier pour enrouler des bobines
JP2011213488A (ja) * 2010-03-19 2011-10-27 Kataoka Mach Co Ltd 巻取カラー
JP2012111628A (ja) * 2010-11-26 2012-06-14 Kataoka Mach Co Ltd 巻取カラー
JP2012153519A (ja) * 2011-01-28 2012-08-16 Kataoka Mach Co Ltd 巻取カラー
JP2012166860A (ja) * 2011-02-09 2012-09-06 Kataoka Mach Co Ltd 巻取カラー

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2300460A (en) * 1995-05-03 1996-11-06 Kampf Gmbh & Co Maschf Friction coupled core support device
EP2345614A1 (fr) * 2010-01-15 2011-07-20 I.E.S International Expanding Shafts S.R.L. Bague de frottement pour arbres de frottement, en particulier pour enrouler des bobines
JP2011213488A (ja) * 2010-03-19 2011-10-27 Kataoka Mach Co Ltd 巻取カラー
JP2012111628A (ja) * 2010-11-26 2012-06-14 Kataoka Mach Co Ltd 巻取カラー
JP2012153519A (ja) * 2011-01-28 2012-08-16 Kataoka Mach Co Ltd 巻取カラー
JP2012166860A (ja) * 2011-02-09 2012-09-06 Kataoka Mach Co Ltd 巻取カラー

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115594023A (zh) * 2022-10-10 2023-01-13 北京中丽制机工程技术有限公司（Cn） 一种长丝卷绕机的管筒的固定装置
WO2024085817A1 (fr) 2022-10-17 2024-04-25 Reymak Maki̇ne Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Bague de frottement
US20250289684A1 (en) * 2022-10-17 2025-09-18 Reymak Makine Sanayi Ve Ticaret Anonim Sirketi Friction ring

Also Published As

Publication number Publication date
ITUB20159556A1 (it) 2017-06-16

Similar Documents

Publication Publication Date Title
US20240165450A1 (en) Weight apparatus including weight adjustment arrangement
US8276237B2 (en) Paint roller cover support with expandable sleeve segments
US8814748B2 (en) Planetary roller gear drive
WO2017103773A1 (fr) Dispositif de verrouillage annulaire simplifié pour l'enroulement de bobines
EP2345614B1 (fr) Bague de frottement pour arbres de frottement, en particulier pour enrouler des bobines
JP6613678B2 (ja) スラスト軸受及びその製造方法
WO2017103771A1 (fr) Dispositif de verrouillage annulaire amélioré pour l'enroulement de bobines
WO2013128479A1 (fr) Arbre extensible pour supporter des bobines et des dispositifs similaires
IE922119A1 (en) Winding mandrel tensioning means
JP2012166860A5 (fr)
EP3272690A1 (fr) Dispositif annulaire pour arbres dans des machines d'enroulement et arbre équipé de celui-ci
EP3705432B1 (fr) Dispositif annulaire à performance améliorée pour arbres de machines d'enroulement
EP3553010B1 (fr) Dispositif annulaire pour arbres dans des machines d'enroulement et arbre équipé de celui-ci
JP6990770B2 (ja) 両方向クラッチ
JP2016013914A (ja) 巻芯支持装置
JP2013194805A (ja) スラスト針状ころ軸受装置
EP2985253B1 (fr) Bague de frottement pour arbres de frottement, en particulier pour des bobines de rembobinage
US4102170A (en) Method for making a spiral coil having spaced turns
JP7836305B2 (ja) 回転防止機構付きリニアアクチュエータ
JP5559167B2 (ja) 切換可能な締結体型フリーホイールのための締結体、切換可能な締結体型フリーホイール及びクランクｃｖｔ伝動装置
JP2009162271A5 (fr)
JP2003097663A (ja) ボールねじ装置
KR20060021251A (ko) 일렬 양방향 클러치 베어링 유니트

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16823341

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16823341

Country of ref document: EP

Kind code of ref document: A1