EP0094503B1 - Yarn bobbin winding machine - Google Patents

Yarn bobbin winding machine Download PDF

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Publication number
EP0094503B1
EP0094503B1 EP19830103390 EP83103390A EP0094503B1 EP 0094503 B1 EP0094503 B1 EP 0094503B1 EP 19830103390 EP19830103390 EP 19830103390 EP 83103390 A EP83103390 A EP 83103390A EP 0094503 B1 EP0094503 B1 EP 0094503B1
Authority
EP
European Patent Office
Prior art keywords
cam
yarn
bell crank
carriage
machine according
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
EP19830103390
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0094503A1 (en
Inventor
Vincent A. Iannucci
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.)
Boeing North American Inc
Original Assignee
Rockwell International 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
Application filed by Rockwell International Corp filed Critical Rockwell International Corp
Publication of EP0094503A1 publication Critical patent/EP0094503A1/en
Application granted granted Critical
Publication of EP0094503B1 publication Critical patent/EP0094503B1/en
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
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/026—Doubling winders, i.e. for winding two or more parallel yarns on a bobbin, e.g. in preparation for twisting or weaving
    • 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
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/32—Traversing devices; Package-shaping arrangements with thread guides reciprocating or oscillating with variable stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/16—Guides for filamentary materials; Supports therefor formed to maintain a plurality of filaments in spaced relation
    • 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
    • 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
    • B65H2701/38—Thread sheet, e.g. sheet of parallel yarns or wires

Definitions

  • This invention relates to machines for winding yarns on bobbins.
  • the invention relates particularly to a yarn bobbin winding machine having a traverse cam, a traverse cam follower and a yarn guide driven by the cam follower.
  • a machine of this kind is known from DE-A-3 016 662.
  • this machine comprises a friction roller driven at variable speed, the yarn contacting the periphery of this roller.
  • each yarn end be under the same tension and have the same length as the other ends of yarn in the group.
  • a yarn guide carrying the group of yarn ends is moved by a traverse mechanism back and forth in a reciprocating manner relative to the bobbin axis.
  • the yarn package on the bobbin tends to build up to a greater extent at each end of the bobbin than in the area therebetween, resulting in a yarn package which has an increasingly larger diameter at each end.
  • the yarn package on the bobbin may not fill in completely at each end of the bobbin resulting in a yarn package which has a smaller diameter at each end.
  • such as yarn package will be flat in the central portion but will either slope upwardly or downwardly in a curving manner at each end.
  • An object of the invention is to provide a mechanism for avoiding build-up or fall-off of yarn at the opposite ends of the package which, unless avoided, produces a yarn package having a larger or smaller diameter at each of its ends than it has in the areas therebetween.
  • the traversing mechanism will produce a yarn package of constant diameter.
  • the winding machine includes a slide bracket which is carried by the traverse cam back and forth across the length of the bobbin.
  • the pivot point of a bell crank is connected to and carried by the slide bracket.
  • Supported for sliding movement in the slide bracket is an adjustment rod which is pivotally connected to one end of the bell crank.
  • the other end of the bell crank is provided with a cam follower which rides in a fixed cam tract which is inclined in one direction, for example, upwardly from left to right.
  • a yarn guide beak is mounted on and carried by the adjusting rod. In the preferred embodiment, the yarn guide beak extends all the way to the package so that there is no opportunity for the yarn ends to stray from their intended location on the package.
  • the slide bracket As the slide bracket is moved back and forth in a reciprocating manner, it carries with it the bell crank.
  • the cam follower riding in the fixed upwardly inclined track causes the bell crank to pivot continuously in a counterclockwise direction about its pivot point. This causes the upper end of the bell crank to move continuously to the left, thereby pushing the slidable adjustment rod continuously to the left relative to the slide bracket. This moves the guide beak continuously to the left relative to the slide bracket which is moving continuously to the right.
  • a similar result is obtained when the slide bracket traverses from right to left.
  • the cam follower moving along the fixed downwardly inclined cam track, causes the bell crank to move continuously about its pivot point in the clockwise direction, thereby pushing the adjustment rod continuously to the right relative to the slide bracket which is moving continuously from right to left.
  • the angle of inclination or slope of the cam track is adjustable so as to accommodate for different winding conditions and resulting yarn displacement behavior.
  • a plurality of ends of yarns Y which for discussion will be assumed to be eight ends but which could be some other number, are pulled from a drum or other source of supply (not shown) through a yarn-end separator 11 and under a yarn support pin 12, as shown in detail in Figure 2.
  • the eight ends of yarn Y are pulled in a downwardly inclined direction, protected by a cover or guide 13, and, as shown in Figure 3, pass through a porcelain eyelet separator 14 mounted in a bracket.
  • the yarn ends than pass under, around, and over a pair of Godet wheels 16 mounted for rotation on skewed shafts 17.
  • the Godet wheels are under adjustable tension by a mechanism shown in Figure 5, which will be described later.
  • the eight yarn ends then travel upwardly, protected by a cover or guard 18, to a yarn bobbin 20 which is driven rotationally by a drive mechanism assembly identified generally by reference numeral 21.
  • the bobbin drive assembly 21 includes a drive motor which may preferably be a variable speed DC motor.
  • the drive mechanism, and the manner in which it drives the yarn bobbin 20, is well known and will not be described in detail.
  • Figure 4 is a side elevational view of the machine which is shown to be supported on adjustable feet 25.
  • Figure 4 shows in dotted line the pair of Godet wheels 16 about which the yarn ends are drawn and the shafts 17 on which the Godet wheels 16 are supported.
  • the shafts 17 are mounted in bearing 28 in a plate 27 secured to frame 26.
  • the function of the Godet rolls is to keep the individual yarn ends separate from each other and to provide the desired tension to the yarn ends.
  • the yarn traverse assembly includes a yarn bobbin 20, a beak guide 70, a beak guide holder 71, a yarn guide roller 61, a bracket 60, a traverse cam shaft 31, a traverse cam 32, and a cam track plate 54.
  • FIG. 5 which is a view along the line 5-5 of Figure 4 looking in the direction of the arrows, shows the means for adjusting the tension on the Godet wheels 16.
  • a brake band 81 which may be of fabric, or rawhide, or other suitable material, is drawn.
  • the brake band is connected at its two ends to a pair of brackets 82 and is tensioned by means comprising a roller 83, a spring 84, an adjustment stud 85, and an adjustment knob 86.
  • cam track plate 54 secured to fixed support base 29 is a cam track plate 54 having a cam track 53 which is inclined upwardly from left to right. Riding in cam track 53 is a cam-follower roller 52 which is connected to and carried by one end of a bell crank 50.
  • bell crank 50 is pivoted about a pivot stud 44 located at the lower end of an L-shaped mounting bracket 43, the upper end of which is secured to slide bracket 40.
  • slide bracket 40 is secured to a stud 134 which is integral with and projects laterally from a cam shoe 34, which rides in the cam track of the traverse cam 32.
  • Traverse cam 32 is mounted on traverse cam shaft 31 which is driven by the main drive assembly.
  • Mounted on stud 134 is a cam roller 33 and a guide piece 36 which rides in a guide plate 35.
  • adjustment rod 41 Supported for sliding movement in slide bracket 40 is an adjustment rod 41 which is pivotally connected at 51 to the upper end of bell crank 50.
  • adjustment rod 41 is carried along with it.
  • a bracket 60 on which a guide beak 70 is mounted Secured to and carried by adjustment rod 41 is a bracket 60 on which a guide beak 70 is mounted. This will be discussed in more detail later in connection with the description of Figures 7 and 8. At this time, it will merely be pointed out that the yarn guide beak is secured to bracket 60 which is secured to adjustment rod 41 as a collar 45, the position of which on rod 41 is adjustable as by a set screw 46.
  • Figure 11 illustrates the condition of the adjustment mechanism when the traverse mechanism has reached the right end of its travel. It will be seen that at the right-end limit of its travel, cam roller 52 has reached its most elevated position, i.e., the upper end of the upwardly inclined cam track 53. As a result, bell crank 50 has moved pivotally in a counterclockwise direction about pivot point 44 and has moved adjustment rod 41 to the left to its leftmost position. This may be seen by comparing the position of bracket 60 in Figure 11 with its position in Figure 10. In other words, as slide bracket 40 is carried by the traverse mechanism toward the right end of the bobbin, the bell crank 50 continuously moves adjustment rod 41 to the left, thereby slowing down the rate at which the guide beak 70 is moved to the right relative to the traverse mechanism.
  • Bracket 60 is a generally triangular bracket having an extension 160 on which a pair of rollers 60 are mounted.
  • an anti- rotation rod 120 Located between rollers 69 is an anti- rotation rod 120, the ends of which are mounted in frame side plates 38, as by screws 39, as seen in Figure 4.
  • Bracket 60 is mounted on and supported by adjustment rod 41 for movement therewith in the axial direction of the bobbin.
  • Mounted at the apex of bracket 60 is a yarn guide roller 61 over which the group of eight yarn ends pass on their way to the channelled front end 170 of yarn guide beak 70, as illustrated in Figure 6.
  • bracket 60 Mounted in bracket 60 is a shoulder screw 90 on which are mounted a full-bobbin stop plate 91 and a holder plate 95 for the yarn guide beak 70.
  • the position of the stop plate 91 is adjustable, as by screws 92 in slot 93. It will be seen that as the end 170 of yarn guide beak 70 rises as the yarn builds up on the bobbin, the apex of the stop plate 91 will come into engagement with stop rod 94 and this will be effective, as by electrical means, to shut off the drive to the bobbin.
  • the yarn guide beak 70 is mounted adjustably, as by screws 74, to the beak holder plate 95 which is an angle plate, as seen best in Figure 8.
  • Mounted in plate 95 is a pivot stud 96 on which is pivotally mounted a spring-biased lock plate 97 having therein an L-shaped slot 98.
  • a stud 68, mounted in bracket 60, is ordinarily positioned within the longer leg of slot 98.
  • a cam track and beel crank have been used, not for the purpose of assuring a yarn package of constant diameter as is the purpose of the present invention, but rather for the purpose of providing a tapered yarn package, i.e., a package having inwardly inclined edges.
  • Tapered yarn packages have been formed in the prior art by using a bell crank having a cam follower which rides in a cam track, the slope of which is constantly changed during traverse in response to sensing a diameter of the package.
  • the angle of inclination of the cam track is increased in such manner that traverse of the yarn guide beak is stopped and reversed at a limit position which is constantly changing, such limit occurring at an ever increasing distance from the end of package.
  • the purpose in the present invention is to achieve a yarn package of constant diameter, During the winding of any particular bobbin with the yarn selected, the cam track is fixed. Its slope is, however, adjustable manually to accommodate for different yarn winding conditions.
  • the yarn guide beak extends all the way to the package.
  • the yarn guide beak is different from that of the usual prior art winding machine.
  • the yarn guide beak does not extend inside the imaginary line drawn between the outer edges of the two flanges of the bobbins parallel with the bobbin axis.
  • the yarn guide beak does not extend all the way to the package, there is the danger that the yarn ends will stray from their intended location on the package. This possibility is avoided in the mechanism of the present invention by having the yarn guide beak extend all the way to, and ride on, the yarn package as it is built up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP19830103390 1982-05-19 1983-04-07 Yarn bobbin winding machine Expired EP0094503B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37952482A 1982-05-19 1982-05-19
US379524 1982-05-19

Publications (2)

Publication Number Publication Date
EP0094503A1 EP0094503A1 (en) 1983-11-23
EP0094503B1 true EP0094503B1 (en) 1987-08-19

Family

ID=23497609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830103390 Expired EP0094503B1 (en) 1982-05-19 1983-04-07 Yarn bobbin winding machine

Country Status (4)

Country Link
EP (1) EP0094503B1 (enrdf_load_stackoverflow)
JP (1) JPS58216867A (enrdf_load_stackoverflow)
CA (1) CA1204419A (enrdf_load_stackoverflow)
DE (2) DE94503T1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107244589A (zh) * 2017-06-29 2017-10-13 嘉兴正联纺织有限公司 一种纺织机械用导纱装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5058818A (en) * 1990-02-08 1991-10-22 Magnatech International, Inc. Multi-strand bobbin winding apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731889A (en) * 1971-02-01 1973-05-08 Alexeff Snyder Ets Tensioning apparatus
DE2314888A1 (de) * 1973-03-26 1974-10-10 Uniroyal Luxembourg Vorrichtung zum gesteuerten abziehen eines oder mehrerer faeden von einer spule
US4130248A (en) * 1977-05-20 1978-12-19 Owens-Corning Fiberglas Corporation Method and apparatus for packaging multistrand roving
US4232838A (en) * 1979-03-19 1980-11-11 Dynamex Corporation Positive self-orienting traverse apparatus in wire take-up machine
DE3016662C2 (de) * 1980-04-30 1982-02-11 F.M.N. Schuster GmbH & Co KG, 5030 Hürth Vorrichtung zum Steuern der Fadenspannung zwischen Kehrgewindewalze und Fadenspule an einer Spulmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107244589A (zh) * 2017-06-29 2017-10-13 嘉兴正联纺织有限公司 一种纺织机械用导纱装置

Also Published As

Publication number Publication date
JPH0349867B2 (enrdf_load_stackoverflow) 1991-07-30
EP0094503A1 (en) 1983-11-23
DE3373087D1 (en) 1987-09-24
JPS58216867A (ja) 1983-12-16
CA1204419A (en) 1986-05-13
DE94503T1 (de) 1984-02-16

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