US3346160A - Roller for strip feeding means - Google Patents

Roller for strip feeding means Download PDF

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Publication number
US3346160A
US3346160A US511879A US51187965A US3346160A US 3346160 A US3346160 A US 3346160A US 511879 A US511879 A US 511879A US 51187965 A US51187965 A US 51187965A US 3346160 A US3346160 A US 3346160A
Authority
US
United States
Prior art keywords
annular member
hub
feed roll
outer annular
hub member
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
US511879A
Other languages
English (en)
Inventor
Roger D Toft
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
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
Priority to NL132258D priority Critical patent/NL132258C/xx
Application filed by NCR Corp filed Critical NCR Corp
Priority to US511879A priority patent/US3346160A/en
Priority to GB47761/66A priority patent/GB1127289A/en
Priority to SE15760/66A priority patent/SE324073B/xx
Priority to FR86085A priority patent/FR1503214A/fr
Priority to CH1741666A priority patent/CH441914A/fr
Priority to DE19661499084 priority patent/DE1499084B2/de
Priority to NL6617138A priority patent/NL6617138A/xx
Application granted granted Critical
Publication of US3346160A publication Critical patent/US3346160A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • G11B15/29—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal through pinch-rollers or tape rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3466—Feeding or guiding devices not specially adapted to a particular type of apparatus by using specific means
    • B21C47/3483—Magnetic field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B65H20/04—Advancing webs by friction roller to effect step-by-step advancement of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/18—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier being longitudinally extended, e.g. punched tape
    • G06K13/20—Details
    • G06K13/22—Capstans; Pinch rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/115—Details of cross-section or profile other
    • B65H2404/1152—Markings, patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/17—Details of bearings

Definitions

  • this novel feed roll includes a central axial member or hub which is journal'ed in a support member of the feeding means and is driven in rotational movement; an outer annular member or ring having at least a portion of magnetic material, which outer member is normally located concentrically of the axial member during rotation, but which may be shifted in a direction perpendicular to the axial member by magnetic attraction in order to cause the record media to be fed; coupling means loosely connecting the annular member to the axial member in such a manner as to cause the axial member to drive the annular member while at the same time permitting radial movement of the annular member with respect to the axial member under the influence of a shifting force, such as magnetic attraction; and centering means including members which act under the influence of centrifugal force to urge the annular member to return to its concentric position from a non-centered position when the shifting force onthe annular member is terminated.
  • Another object is to provide a feed roll for use in a strip feeding device, said roll including a central axial member, an annular member normally concentric with the axial member during rotation, means for loosely coupling the annular member to the axial member in such fashion that the annular member rotates with the axial member but is free for a limited radial movement with respect to the axis of rotation, and means for urging the annular memberinto a concentric position with respec to the axial member.
  • a further object is to provide a feed roll for use in a strip feeding device, said roll having an inner hub member, an outer annular member, coupling means including a plurality ofspherical members for loosely coupling the inner hub member and the annular member, and centering means also including a plurality of spherical members for constantly urging the annular member into atent concentric relation with the axial member during rotation.
  • An additional object is to provide a feed roll for use with a strip feeding device, said roll having an outer cylindrical surface which is driven in rotational movement and which is also capable of eccentric movement with respect to the axis of rotation of the feed roll.
  • the invention includes certain novel features of construction and combinations of parts, a preferred form or embodiment of which is hereinafter described with reference to the drawing which accompanies and forms a part of this specification.
  • FIG. 1 is a fragmentary side elevation of a tape handling apparatus, showing the tape feeding means.
  • FIG. 2 is a sectional view taken on line 2-2 of FIG. 1,' showing the feed roll which forms a part of the tape feeding means.
  • FIG. '3 is a sectional view taken on line 33 of FIG. 2, showing the coupling means which form a driving connection between the inner axial member and the outer annular member of the feed roll.
  • FIG. 4 is a sectional view of the annular outer member of the feed roll.
  • FIG. 5 is a sectional view taken on line 5-5 of FIG. 2,
  • FIG. 6 is an enlarged sectional view showing one of the spherical elements, and the manner in which it is loosely retained in the inner axial member or hub of the feed roll.
  • FIG. 7 is a sectional view similar to FIGS, but showing the outer annular member in an eccentric position with-respect to the inner axial member or hub.
  • FIG. 8 is a partial elevation of a modified form of the inner axial member, showing a different arrangement for location of the spherical elements therein.
  • a strip feeding means having three basic element; namely, a capstan 12, an electromagnetic member 14, and a feed roll 16. These three elements are mounted on a support member 18 by suitable means, the capstan 12 and the feed roll 16 being mounted in bearings for rotational movement, while the electromagnetic member 14 is fixed to the support member 18.
  • An electric motor or other appropriate means (not shown) is provided to drive the capstan and the feed roll in constant rotational movement in opposite directions of rotation during operation of the strip feeding means.
  • the strip 10 which is to be fed is positioned between the capstan 12 and the feed roll 16.
  • the capstan 12 includes two annular rings 20, one of which is shown. These rings are of magnetic material, and are separated by an annular spacer (not shown) of non-magnetic material.
  • the electromagnetic member 14 which consists of a pair of pole pieces 22 (only one being shown) of suitable magnetic material, connected by a member 24, on which is wound an electromagnetic coil 26.
  • the pole pieces 22 are shaped in a configuration which extends around the greater portion of the circumference of the capstan 12, and each of said pole pieces is positioned in alignment with one of the annular magnetic rings 20 of said capstan.
  • the feed roll 16 includes a central axial member or hub 30 having at one end an integral enlarged retaining portion 32 and having at the other end an integral shaft 34 of reduced diameter, which cooperates with a bearing assembly 36 for rotatably mounting the feed roll in the support member 18.
  • the end portion of the shaft 34 is provided with flat surfaces 38 to enable it to be securely'connected to a suitable driving means.
  • annular member 40 Positioned around the circumference of the hub 30 is an annular member 40, shown separately in FIG. 4, which consists of an outer ring 42 of a suitable magnetic material and an inner ring 44 of a suitable material, such as a synthetic polymer, of the type commonly used for bearings.
  • suitable synthetic polymers include Delrin, a polyformaldehyde resin of the formula produced by E. I. du Pont. de Nemours and Company; nylon, which is a long-chain polymeric amide having recurring amide groups -CONH-- as an integral part of the polymer chain; and Teflon, which may be either a poly-tetrafiuoroethylene resin or a fluorinated ethylenepropylene resin (see Condensed Chemical Dictionary).
  • the inner surface of the ring 44 contains a plurality of grooves 46, which are parallel to the axis of rotation of the ring.
  • the purpose of the grooves will subsequently be disclosed.
  • the inner and outer rings 44 and 42 could be formed as one integral ring of magnetic material, but the use of two rings permits different materials to be used for each and is therefore somewhat more desirable, since the inner ring should ideally possess properties of hardness and sound deadening that the soft magnetic steel of the outer ring cannot normally provide.
  • Means are provided for coupling the annular member 40 to the hub 30 so that the two are driven together, such means being in the form of a plurality of small spherical elements or balls 48, which may be ball bearings. As may best be seen in FIGS. 2 and 3, the balls 48 rest loosely in bores 50 equally spaced about the circumference of the hub 30 midway between its ends. When the annular member 40 is placed upon the hub 30, the protruding portions of the balls 48 ride in the previously-mentioned grooves 46, and thus couple the hub 30 and the annular member 40 for unitary driving movement. It may be noted that a retaining plate 52, secured to one end of the hub 30, is provided to prevent lateral movement of the annular member 40 with respect to the hub 30.
  • Centering means are employed between the hub 30 and the annular member 40 and function to maintain the member 40 in concentric relation to the hub 30 when the feed roll is being driven in rotational movement, but is not functioning to feed the strip which is positioned between the capstan 12 and the feed roll 16. Said means also function to return the member 40 to such concentric position after it has been urged to an eccentric strip-feeding position under control of the electromagnetic member 14, or by other means, and then released.
  • a plurality of spherical elements or balls 54 which may be in the form of ball bearings, are located in two groups of bores 56 in the hub 30. Each group of bores is equally spaced in a line about the circumference of the hub and located adjacent to one end of the hub. Each ball 54 is free for limited movement within its bore 56, but is restricted in its extent of outward movement by a cap 58, which is secured by a pressed fit or other suitable means in the opening of each bore 56, as may be best seen in FIG. 6,- A circular opening in each can 53 permits its associated ball 54 to protrude slightly beyond the outer circumferential surface of the hub 30.
  • the outer surface of the annular member 40 of the feed roll 16 is adjacent to and engageable with one side of the strip 10 at a point opposite where the outer surface of the capstan 12 engages the other side of said strip.
  • each ball 54 rests against the internal surface of the inner ring 44 of the annular element 40, as shown in FIG. 5, and the centrifugal force exerted upon the balls as a result of rotation of the feed roll is transmitted equally to all areas of the annular member 40.
  • the balls 54 on the side of the hub 30 away from the direction of the shift continue to exert pressure against the inner surface of the annular member 40 by virtue of the centrifugal force generated by the rotation of the feed roll 16, thus urging the member 40 to return to a centered position, which it will do as soon as the shifting force is removed.
  • the balls 54 act under the influence of centrifugal force to resist automatically any force which tends to move the outer annular member 40 from a position in which it is concentric with the hub 30.
  • the outer annular member 40 is thus permitted to be shifted against the yielding centering means comprising the balls 54, and is urged to return to its centered position immediately following the removal of the shifting force.
  • FIG. 8 Shown in FIG. 8 is a modified form 30' of the hub 3b which varies from the form shown in FIG. 2 in that the bores holding the balls 54 are in a staggered formation rather than being placed in line, as they are in FIG. 2. Both arrangements function satisfactorily.
  • One advantage of the staggered configuration of FIG. 8 is that greater spacing between adjacent bores is achieved, thus permitting the use of larger balls and bores if desired in certain applications, such as in devices designed for relatively owpeed ope ation-.111 addition, the staggered format on provides a slightly more even distribution of forces of the balls 54' on the inside surface of the annular element 40.
  • a feed roll comprising, in combination,
  • coupling means for coupling the outer annular member to the hub member for unitary rotational movement in such manner that the outer annular member can be shifted radially with respect to the axis of rotation of the hub member;
  • centering means for yieldably maintaining the outer annular member in concentric relation to the hub member during rotation of the feed roll in the absence of an external shifting force, and capable of returning the outer annular member to such concentric relation after a shifting force has been terminated, including a plurality of rigid centering elements associated with the hub member and capatale of limited movement to engage adjacent areas of the inner surface of the outer annular member under the influence of centrifugal force, the areas of engagement being determined by the position of the outer annular member with respect to the hub member.
  • outer annular member includes an outer ring element of magnetic material and an inner ring element.
  • the coupling means includes a plurality of coupling elements partially seated in recesses in the hub member and cooperating with grooves in the inner surface of the outer annular memher.
  • each of the centering elements is loosely retained for limited movement in a bore in the hub member, from which it may protrude to a limited extent under the influence of centrifugal force for engagement with an adjacent area of the inner surface of the outer annular member.
  • each of the spherical centering elements is retained in its bore in the hub member by means of a cap having a circular aperture therein through which a portion of the spherical element may protrude.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US511879A 1965-12-06 1965-12-06 Roller for strip feeding means Expired - Lifetime US3346160A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL132258D NL132258C (nl) 1965-12-06
US511879A US3346160A (en) 1965-12-06 1965-12-06 Roller for strip feeding means
GB47761/66A GB1127289A (en) 1965-12-06 1966-10-25 A strip feeding device
SE15760/66A SE324073B (nl) 1965-12-06 1966-11-17
FR86085A FR1503214A (fr) 1965-12-06 1966-12-05 Dispositif d'avancement pour bandes ou rubans
CH1741666A CH441914A (fr) 1965-12-06 1966-12-05 Dispositif d'avancement pour bandes, rubans ou objets analogues
DE19661499084 DE1499084B2 (de) 1965-12-06 1966-12-05 Aufzeichnungsträgerfördervorrichtung
NL6617138A NL6617138A (nl) 1965-12-06 1966-12-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US511879A US3346160A (en) 1965-12-06 1965-12-06 Roller for strip feeding means

Publications (1)

Publication Number Publication Date
US3346160A true US3346160A (en) 1967-10-10

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ID=24036832

Family Applications (1)

Application Number Title Priority Date Filing Date
US511879A Expired - Lifetime US3346160A (en) 1965-12-06 1965-12-06 Roller for strip feeding means

Country Status (7)

Country Link
US (1) US3346160A (nl)
CH (1) CH441914A (nl)
DE (1) DE1499084B2 (nl)
FR (1) FR1503214A (nl)
GB (1) GB1127289A (nl)
NL (2) NL6617138A (nl)
SE (1) SE324073B (nl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428308A (en) * 1967-01-03 1969-02-18 Honeywell Inc Flexure-mounted magnetic pinch roll
EP3473571A1 (de) * 2017-10-23 2019-04-24 DVI GmbH Vorrichtung zum führen zumindest einer materialbahn

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166523B (de) * 1962-01-02 1964-03-26 Olympia Werke Ag Elektromagnetische Andrueckvorrichtung fuer eine Andrueckrolle
US3261523A (en) * 1964-05-04 1966-07-19 Gen Electric Transport device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166523B (de) * 1962-01-02 1964-03-26 Olympia Werke Ag Elektromagnetische Andrueckvorrichtung fuer eine Andrueckrolle
US3261523A (en) * 1964-05-04 1966-07-19 Gen Electric Transport device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428308A (en) * 1967-01-03 1969-02-18 Honeywell Inc Flexure-mounted magnetic pinch roll
EP3473571A1 (de) * 2017-10-23 2019-04-24 DVI GmbH Vorrichtung zum führen zumindest einer materialbahn

Also Published As

Publication number Publication date
NL132258C (nl)
SE324073B (nl) 1970-05-19
GB1127289A (en) 1968-09-18
NL6617138A (nl) 1967-06-07
CH441914A (fr) 1967-08-15
FR1503214A (fr) 1967-11-24
DE1499084B2 (de) 1970-06-25
DE1499084A1 (de) 1969-11-06

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