US3530556A - Yarn crinkling machine - Google Patents

Yarn crinkling machine Download PDF

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Publication number
US3530556A
US3530556A US758746A US3530556DA US3530556A US 3530556 A US3530556 A US 3530556A US 758746 A US758746 A US 758746A US 3530556D A US3530556D A US 3530556DA US 3530556 A US3530556 A US 3530556A
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United States
Prior art keywords
sinker
elements
yarn
blocks
head
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
US758746A
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English (en)
Inventor
Frederick William Hole
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.)
John Heathcoat and Co Ltd
Original Assignee
John Heathcoat and Co Ltd
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Filing date
Publication date
Priority claimed from GB2738064A external-priority patent/GB1088935A/en
Application filed by John Heathcoat and Co Ltd filed Critical John Heathcoat and Co Ltd
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Publication of US3530556A publication Critical patent/US3530556A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics

Definitions

  • FIGQ6 is a diagrammatic representation of FIG.
  • the apparatus includes a rotatable crimping head With a plurality of fixed sinker blocks spaced from each other in a circular row and a plurality of movable sinker elements each of which is movable in a space between two adjacent sinker blocks so that yarn is entrapped between the blocks and elements as it is passed through the rotating head.
  • Cam means engage the sinker elements to move when between the blocks.
  • the sinker blocks and the spaces between them are inclned so as to face towards the direction from which the cam means engage the sinker elements.
  • the present appli cant describes an apparatus for crinkling yarns including a rotatable crimping head which comprises a plurality of sinker blocks spaced from each other in a circular row; a plurality of sinker elements each of which is arranged in one of the spaces between the sinker blocks, each of the elements being mounted in a pivot for movement between an open position in which its free end is disengaged from the space and a closed position in which its free end is engaged in the space; cam means with which the pivoted sinker elements are engaged so that the elements are, as the head rotates each in turn opened at a fixed angular position of the head to permit a yarn or ribbon to be introduced between the sinker elements and sinker blocks, closed to entrap the yarn in the spaces between the elements and the blocks and then at a second angular :position of the head opened to release the entrapped yarn; means for introducing yarn between the sinker elements
  • the present invention provides a modification of apparatus of Pat. No. 3,335,475 in which the said sinker elements and the spaces between the said sinker blocks are inclned so as to face towards the direction from which the cam means engage the sinker elements.
  • the present invention prevents the movable sinkers becoming the subject of so much side thrust from the cam means that they tend to jam against the adjacent fixed sinker blocks. It has also been found that for different deniers of yarn, or for yarns in the undrawn or semi- 3,530,556 Patented Sept. 29, 1'970 drawn state, it is desirable to be closing a greater or smaller number of sinker elements simultaneously and this has lead to the development of a series of cams for different purposes.
  • the present invention provides a way of avoidng such overshooting.
  • the invention also permits higher speeds of operation.
  • FIGS. 1(a) and 1(b) are schematic endelevations of part of a crimping head showing angled sinker blocks and elements according to the invention
  • FIG. 2 is a View of a cam device opposing movement of the sinker elements, I
  • FIG. 3 is a detail view of a crimped or bent sinker element
  • FIGS. 4(a) through 4(b) are diagrams illustrating a plurality of possible profiles of closing cams for the sinker elements
  • FIG. 5 is a perspective View of a crimping head
  • FIG. 6 is an exploded view illustrating a thread line fore drawing and texturing a yarn.
  • a crimping head is constructed generally as described in the specification of the aforesaid parent Pat. No. 3,335,47'S.
  • yarn Y composed of thermoplastic textile fibres is, in an apparatus according to this invention, drawn off from a creel (not shown) and passed through a yarn tensioning device 1. It then passes via a guide 2 to a rotatable crimpng head C. The yarn Y approaches the cri-mping head C via an inlet guide 3 and then passes round the head. The yarn is crimped or crnkled as it travels round the head and it leaves the head and passes round a roller 4 to a take up device 5.
  • the crimping head C comprises a plurality of sinker blocks 6 (FIGS. 1 and 2) fixed on a block 7 so that they are rotatable with the head.
  • the sinker blocks are arranged in a circuit to provide a plurality of radial spaces.
  • a plurality of movable sinker elements 8 have inner ends which are pivotally mounted in the spaces between the fixed elements so that the free ends of the elements can move to and from the plane containing the fixed sinker blocks between a closed position in which the free ends of the sinker elements are engaged in the spaces between the fixed blocks 6 and an open position in which they are disengaged from the spaces.
  • These movable elements are also rotatable with the head C, and as the head ro- .tates they are caused to move between their open and closed positions by cam means 9 and 16 fully described in the parent specification so that no description is herein required.
  • each sinker element 8 as it approaches one angular position of the head C, it is caused by an opening cam 16 to swing to its open position to permit yarn to enter between that element and the adjacent fixed blocks.
  • the element continues movement of the head then causes the element to be moved to its closed position by the cam means 9 thereby to entrap the yarn in the space between the element and the sinker block on each side of it.
  • the elements remain in the closed position for a desired period of dwell after which they are again opened by the opening cam to permit the yarn to be released. While the yarn is 3 in its entrapped state, it is heated by an electric heater, the temperature of which is controlled by a temperature sensing element.
  • An opposing cam 10 (FIG. 2) is provided to oppose the closing action of the movable sinker elements 8. 'Ihis opposing cam limits the amount by which each sinker element 8 can overshoot the depth at which the closing cam 9 is still in contact with it.
  • the device 10 is arranged so that the overshoot may be controlled from nothing up to any desired value.
  • the opposing cam is loaded by a spring 11 into engagement with the elements 8.
  • the engaging surface of the cam is a ball race 12 but can be another moving surface or it can -be a fixed surface.
  • the loading of the spring 11 is adjustable by rota- -tion of a nut 13 which can screw on a cam supporting rod 14.
  • the fixed sinker blocks 6 may be crimped or bent with respect to the head C as shown in FIG. 3 so that they are stable when standing on one edge with the working portion angled to the surface of a mounting plate of the blocks.
  • the closing cam 9 can have a variety of profiles giving various degrees of contact with the hinged sinker elements so as to be closing from one to a very large number of sinker elements at any one instant in time and with various acceleration patterns. A pluralty of typical profiles are shown in FIGS. 4(a) through 4(d).
  • the roller 4 (FIG. 6) is disposed between the crimping head C and a take-up unit so as partly to isolate the winding tension from the crimping tension and rapidly to lower the yarn temperature to a level at which the winding tension does not damage the crimp.
  • An apparatus for crinkling yarns including a rotatable crimping head which comprises a plurality of sinker blocks spaced from each other in a circular row; a plurality of sinker elements each of which is arranged in one of the spaces between the sinker blocks, each of the elements being mounted on a pivot for movement 'between an open position in which its free end is disengaged from the space and a closed position in which its free end is engaged in the space; first cam means with which the pivoted sinker elements are engaged so that the elements are, as the head rotates each in turn opened at a fixed angula' position of the head to permit a yam or ribbon to be introduced between the sinker elements and sinker blocks, and closed to entrap the yarn or ribbon in the spaces wherein the said sinker elements and the spaces between the said sinker blocks are inclined so as to face towards the direction from which the cam means engage the sinker elements, and second cam means is provided to oppose movement of the sinker elements into the spaces between the sinker blocks, the said second cam means being

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Contacts (AREA)
  • Knitting Machines (AREA)
US758746A 1964-07-02 1968-09-10 Yarn crinkling machine Expired - Lifetime US3530556A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2738064A GB1088935A (en) 1964-07-02 1964-07-02 Crinkle yarn machine
GB42808/67A GB1206445A (en) 1964-07-02 1967-09-20 Crinkle yarn apparatus

Publications (1)

Publication Number Publication Date
US3530556A true US3530556A (en) 1970-09-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
US758746A Expired - Lifetime US3530556A (en) 1964-07-02 1968-09-10 Yarn crinkling machine

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US (1) US3530556A (enrdf_load_html_response)
BE (1) BE720905A (enrdf_load_html_response)
DE (1) DE1785399A1 (enrdf_load_html_response)
DK (1) DK120306B (enrdf_load_html_response)
ES (1) ES358287A2 (enrdf_load_html_response)
FR (1) FR95749E (enrdf_load_html_response)
GB (1) GB1206445A (enrdf_load_html_response)
NL (1) NL6813383A (enrdf_load_html_response)
NO (1) NO120891B (enrdf_load_html_response)
SE (1) SE337277B (enrdf_load_html_response)
SU (1) SU383319A3 (enrdf_load_html_response)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641884A (en) * 1969-07-07 1972-02-15 Anton Jivoin Manufacturing flexible drinking straws
US3768128A (en) * 1970-04-03 1973-10-30 Heathcoat & Co Ltd Apparatus for crimping yarn
US4391025A (en) * 1979-08-22 1983-07-05 Hoechst Aktiengesellschaft Process for laying down continuous material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696034A (en) * 1953-02-03 1954-12-07 Wildman And Swartz Inc Mechanical device for crimping nylon or other yarn
US2812569A (en) * 1954-10-08 1957-11-12 Scott & Williams Inc Apparatus for crinkling yarn
US3256134A (en) * 1963-10-09 1966-06-14 American Enka Corp Yarn treating process and product
US3335475A (en) * 1965-06-30 1967-08-15 Heathcoat & Co Ltd Method and apparatus for crinkling yarn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696034A (en) * 1953-02-03 1954-12-07 Wildman And Swartz Inc Mechanical device for crimping nylon or other yarn
US2812569A (en) * 1954-10-08 1957-11-12 Scott & Williams Inc Apparatus for crinkling yarn
US3256134A (en) * 1963-10-09 1966-06-14 American Enka Corp Yarn treating process and product
US3335475A (en) * 1965-06-30 1967-08-15 Heathcoat & Co Ltd Method and apparatus for crinkling yarn

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641884A (en) * 1969-07-07 1972-02-15 Anton Jivoin Manufacturing flexible drinking straws
US3768128A (en) * 1970-04-03 1973-10-30 Heathcoat & Co Ltd Apparatus for crimping yarn
US4391025A (en) * 1979-08-22 1983-07-05 Hoechst Aktiengesellschaft Process for laying down continuous material

Also Published As

Publication number Publication date
BE720905A (enrdf_load_html_response) 1969-03-03
GB1206445A (en) 1970-09-23
SU383319A3 (enrdf_load_html_response) 1973-05-25
SE337277B (enrdf_load_html_response) 1971-08-02
NO120891B (enrdf_load_html_response) 1970-12-21
ES358287A2 (es) 1970-04-16
DK120306B (da) 1971-05-10
NL6813383A (enrdf_load_html_response) 1969-03-24
FR95749E (fr) 1971-06-04
DE1785399A1 (de) 1971-05-13

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