US3300962A - Yarn severing mechanism - Google Patents
Yarn severing mechanism Download PDFInfo
- Publication number
- US3300962A US3300962A US444262A US44426265A US3300962A US 3300962 A US3300962 A US 3300962A US 444262 A US444262 A US 444262A US 44426265 A US44426265 A US 44426265A US 3300962 A US3300962 A US 3300962A
- Authority
- US
- United States
- Prior art keywords
- yarn
- spindles
- bobbins
- bobbin
- carriage
- 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
Links
- 230000007246 mechanism Effects 0.000 title claims description 30
- 239000000463 material Substances 0.000 claims description 21
- 238000009987 spinning Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 3
- 241001589086 Bellapiscis medius Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
- D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
- D01H9/16—Yarn-severing arrangements, e.g. for cutting transfer tails; Separating of roving in flyer
Definitions
- the present invention relates to a mechanism for removing full ybobbins from spindles of spinning frames, twisters, or the like and, more particularly, to a means yfor severing the ends of yarn or strand material extending from the bobbins.
- a further and more specific object is to provide such a means which will sever the strand ends from a bobbin prior to its being acted upon by the mechanism for removing it from its respective spindle.
- the present invention is applicable to a doffing and donning machine such as that disclosed in United States Patent No. 3,077,725, and since this patent may be referred to for a more detailed description of such a machine, it is considered unnecessary at this point to insert herein the details of the general aspects of construction and operation of this unit.
- the doing mechanism to which the present invention is applicable comprises a carriage with a means for mounting the same on machines such as spinning frames, twisters, or the like which support a row of spindles that are utilized in a known manner during the processing of textile yarns.
- This carriage is adapted to move on such machines along a path parallel to the spindles and to raise and remove the bobbins carried thereon,
- the means utilized for doffing full bobbins as disclosed in the above-mentioned patent includes a drive breaking cam and in close proximity therewith a flexible inclined lifting guide member for raising the bobbins to a position where they are guided into a receptacle ⁇ adapted to receive the bobbins as they 4are doffed.
- a filling or yarn package ⁇ on a bobbin is Wound to a predetermined size and as well known to those conversant in the art, the final wind of yarn is carried rapidly downwardly from the upper portion of the package forming somewhat of a helix wind about the .package ⁇ and as it leaves the bobbin the filling thread is wrapped about the base of the spindle where it is held in preparation for the next bobbin.
- the usual form of ring and traveler arrangement guides the yarn during the winding process and as described above the final wind of yarn being around the base of a spindle leaves two lengths of yarn extending from said nal wind to the ibobbin package.
- One length of yarn is that which is carried upwardly to commence the winding of a new package and the second length is that of the final wind.
- the mechanism according to the instant invention provides a positive means of severing the yarn which interconnects a bobbin with its spindle immediately prior to said bobbins engagement with the doffing mechanism.
- the invention comprises a unit mounted on the carriage which supports the doffing mechanism and being movable therewith it is so disposed as to perform its intended function in advance of said dofling mechanism.
- This unit is retractable to and from operating position and includes a lifting cam which is adapted to raise the bobbins from a fixed position on the spindles to a rotatable position thereon.
- a wheel member rotatably mounted on the unit engages each spindle to clamp and bind the final wind of yarn thereto.
- a vertically disposed spring biased plate-like member is positioned above and in general alignment with the lifting cam and when in operating position is yieldably engageable with the yarn package of the raised bobbins.
- FIG. l is a perspective view showing the mechanism according to the invention and its relation to the bobbins and spindles o-f a spinning frame with which it cooperates in performing its intended function;
- FIG. 2 is a perspective view of a portion of a dofling and donning apparatus mounted on the rail of a spinning frame showing the mechanism according to the invention applied thereto in extended or operating position;
- FIG. 3 is a perspective view of a portion of the apparatus shown in FIG. 2 and showing the mechanism according to the invention in a withdrawn or non-operating position;
- FIG. 4 is a perspective view and partially in section of the supporting means for the spring -biased lrotatable wheel adapted to clamp and hold the end winds of yarn.
- FIG. l shows a portion of a spinning frame with which the yarn severing mechanism is caused to cooperate having a ring rail 10, a plurality of spinning rings 11, and an equal number of spindles 12 (the lower portion of one only being shown in FIG, l).
- the spindles are supported in a known manner below the ring rail 10 and extend upwardly through the latter and the spinning rings affixed thereto to support a bobbin 13 as shown in FIG. 1.
- FIGS. 2 and 3 show a rail or track 14 that forms the forward portion of a spinning frame which is adapted to support the dofiing and donning apparatus generally indicated in these figures of drawing by numeral 15.
- This apparatus attaches to the rail 14 of the spinning frame and is caused to roll there along in a path parallel to the row of spindles by means of wheel-like members 16 (one only shown in FIGS. 2 and 3).
- a carriage 17 partially shown in FIGS. 2 and 3 forms a part of the dofiing and donning apparatus and is caused to move therewith in the direction of the indicating arrows 18 shown in said figures of drawing.
- the carriage 17 supports the bobbin dofiing mechanism which is partially shown in FIGS. 2 and 3 and is depicted generally by numeral 19.
- the yarn severing mechanism according to the instant invention is also supported by the carriage 17 and is so disposed thereon so as t-o perform its intended function in advance of the dofiing mechanisms function.
- the yarn severing mechanism is depicted generally in FIGS. l, 2 and 3 by numeral 20 and includes a base portion 21 which is fixedly attached to the carriage 17 by any suitable means.
- Support brackets 22 and 23 having a cross sectional configuration that is generally L-shaped are attached to the upper surface of the base portion 21 by means of cap screws 24 (only those cap screws in bracket 23, FIG. 3, are illustrated). These brackets are disposed in spaced relation and in general alignment on the base member 21 and are adapted to support the various components comprising the invention for selective movement to and from operating position therebetween.
- a mounting bracket 25 having a generally U-shaped configuration is supported intermediate the support brackets 22 and 23, and by linkage elements to be lmore fully described it is selectively movable in a lateral direction to and away from the row of spindles on the spinning frame.
- leg portions of this U-shaped mounting bracket 25 extend in a lateral direction with respect to the rail 14 and are identified in FIGS. 2 and 3 by numerals 26 and 27.
- the upper portion of the leg elements 26 and 27 have secured on that surface most remote from the rail 14 aligned ear-like projections 28 and 29, respectively, which extend in a direction away from and like that of said leg elements.
- Adjustable connecting links 30 and 31 have one end thereof .pivotally attached to the ear-like projections 28 and 29 as at 32 and 33, respectively.
- the opposite ends of these adjustable connecting links are attached in a similar manner to the upper ends of the support brackets 22 and 23 -as at 34 and 35, respectively (FIG. 2).
- leg portions 26 and 27 thereof Adjacent the lower end of the U-shaped mounting bracket the leg portions 26 and 27 thereof are provided with link arms 36 and 37 which are pivotally attached at one end to said leg portions as at 38 and 39 (FIGS. 1 and 2). The opposite end of these link arms are attached in a similar manner to the lower portion of the support brackets 22 and 23 as at 40 and 41 in FIG. 3.
- the cooperating combination of the adjustable connecting links 30 and 31 and the link arms 36 and 37 allow the ymounting bracket 25 to be selectively moved through an arc of travel which will place it in either an inoperative or operating position relative to the row of spindles on the spinning frame.
- a tie bar 42 interconnects the -link arms 36 and 37 and is provided with a centrally disposed and integrally formed lug member 43 (FIG. l), in which adjusting screws 44 are adapted to assemble (one only shown in FIG. l). Adjusting screws 44 assemble in tapped holes provided in the lug member 43 and are maintained in the position desired by means of lock nuts 45. The heads of these adjusting screws 44 (not shown) are caused to bear against .that portion of the mounting bracket 25 intermediate the leg elements 26 and 27, thereby making its operating position an adjustable one.
- this bracket When this bracket is swung to an inoperative position like that depicted in FIG. 3, it is moved beyond the vertical center of the pivot points and by means of a manual releasable latching arrangement not shown it is maintained in the inoperative position.
- the forward vertically disposed surface of the mounting bracket 25 or that surface identified by numeral 46 in FIG. l supports a spring biased camming plate 47 by means of stud members 48 (FIG. 1).
- the stud members 48 are fixedly attached at one end to the inner vertical surface of the camming plate 47 and extending in a horizontal plane from the latter they are adapted to enter aligned apertures in the forward vertically disposed surface of the mounting bracket 25.
- Each of the stud members 48 has a coil spring 49 (FIG. l) assembled on the shank portions thereof intermediate the mounting bracket 25 and the camming plate 47.
- the outermost surface of the camming plate 47 is covered with a sheet material having rubber-like frictional qualities that is identified by numeral 51 and as illustrated in FIG. l is yieldably urged into contact with the yarn package on a bobbin 13.
- the frictional contact between this sheet material and the yarn package is effective in causing the bobbin to rotate on its spindle to sever the final wind of yarn and will be more fully described hereinafter.
- a bobbin raising cam 52 (FIGS. 2 and 3) is attached by any suitable means to the lower forward portion of the mounting bracket 25 and the camming surface extends forwardly of said bracket and in general alignment with the camming plate 47.
- This bobbin raising cam 52 is adapted to move beneath and to contact the butt portion of each bobbin 13 to break the hold between said bobbin and its respective spindle.
- a rotating yarn holder generally indicated by numeral 53 is mounted for rotary movement beneath the camming plate 47 and the bobbin raising cam 52.
- This yarn holder is horizontally disposed and is in the form of a Wheel having a plurality of equally spaced cog members 54 disposed about the peripheral extent thereof.
- the individual cog members 54 have a surface disposed therebetween which curves inwardly toward the axis of the yarn holder and is identified vby numeral 55 (FIGS. l and 5). As illustrated in FIG. l these inwardly curved surfaces 55 are adapted to mesh with the base portion of the spindles 12 as the yarn severing mechanism according to the invention is caused to move along a path parallel to the row of said spindles.
- the yarn holder itself besides being rotatably mounted, is spring biased in the direction of the spindles thereby causing a clamping action to the final wind of yarn which is wrapped about the base of each spindle ⁇ and is effective in preventing rotation of the spindle itself.
- the biasing means by which the yarn holder is urged into contact with the spindles includes a pivotable mounting arm 56 (FIG. 4) which is supported for swinging movement from the lower side of a bracket member 57.
- This bracket member is fixedly attached to the mounting bracket 25 adjacent its lower side and intermediate the leg portions 26 and 27 by means of cap screws 58.
- One end of the arm 56 supports the yarn holder 53 for rotary movement in a horizontal plane by means of a stud 59 and nut 6).
- the opposite end of this arm 56 is pivotably attached to the underside of the bracket member 57 by means of a stud member 61 which is fixedly positioned by means of set screws 62 in said bracket member.
- a leaf spring 63 (FIG. 4) is lattached lat one end to the lower and side portion of the bracket member 57 as at 64 and the opposite end thereof is in pressing contact with the nut 60 thereby continually urging the yarn holder 53 in the direction of the spindles with which it is adapted to cooperate.
- FIGS. 2 and 3 illustrate a means for automatically retracting the yarn severing mechanism to an inactive position or that position shown in Fifi. 3 and includes a pivotable retracting arm 65 having a pair of cylindrical roller members 66 and 67 disposed in spaced relation and extending ⁇ laterally from said retracting arm.
- Roller member 66 is positioned above roller 67 and is in contact with the underside of the link arm .as shown in FlG. 2.
- the roller 67 is in contact with an integrally formed protruding shelf 68 (FG. 3) which extends from a vertically disposed plunger 69 which is guided for vertical movement within a guide bracket 7G.
- the lower end of the plunger 69 is provided with a follower 71 (FIG.
- the mechanism In operation, the mechanism is moved to the position depitced in FIGS. l and 2 'and as the mechanism is caused to move along a path parallel to the row of spindles, the bobbin raising cani is caused to move beneath the butts of the bobbins carried on said spindles to break the hold between these members. As the bobbin is caused to rise the yarn package thereon makes frictional contact with the covering 51 on the camming plate d'7 thereby causing said bobbin to rotate as the mechanism is advanced. At this time one of the inwardly curved surfaces 55 of the rotating yarn holder S3 is in mesh with the base portion of the particular spindle involved and is effective in clamping the final wind of yarn wrapped therearound.
- a yarn control mechanism adapted to sever the ends of strand material wound on bobbins disposed on a row of spindles supported on a machine which comprises:
- a yarn control mechanism adapted to sever the ends of strand material wound on bobbins disposed on a row of spindles supported on a machine which comprises:
- said plate member includes a biasing means for yieldingly urging the salme into contact with the strand material wound on said bobbins.
- a vmethod of severing the end winds of strand material wound on bobbins disposed on a row of spindles supported on a machine which includes the steps of:
- a method of severing the end winds of strand material wound on bobbins disposed on a row of spindles supported on a machine which includes the steps of:
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US444262A US3300962A (en) | 1965-03-31 | 1965-03-31 | Yarn severing mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US444262A US3300962A (en) | 1965-03-31 | 1965-03-31 | Yarn severing mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
US3300962A true US3300962A (en) | 1967-01-31 |
Family
ID=23764156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US444262A Expired - Lifetime US3300962A (en) | 1965-03-31 | 1965-03-31 | Yarn severing mechanism |
Country Status (1)
Country | Link |
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US (1) | US3300962A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3546870A (en) * | 1967-02-13 | 1970-12-15 | Barber Colman Co | Method and machine for automatically relocating spinning frame travelers |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653440A (en) * | 1949-01-15 | 1953-09-29 | Partington Harold | Means for doffing ring frames |
US2886940A (en) * | 1956-06-16 | 1959-05-19 | Kanegafuchi Spinning Co Ltd | Apparatus for automatically mounting and dismounting a bobbin for a spinning machine, a twister and the like |
US3116587A (en) * | 1962-12-19 | 1964-01-07 | Willcox & Gibbs Sewing Machine | Doffing mechanism |
US3176458A (en) * | 1962-11-13 | 1965-04-06 | Draper Corp | Bobbin doffing mechanism |
US3204397A (en) * | 1963-07-05 | 1965-09-07 | Draper Corp | Doffing mechanism |
-
1965
- 1965-03-31 US US444262A patent/US3300962A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653440A (en) * | 1949-01-15 | 1953-09-29 | Partington Harold | Means for doffing ring frames |
US2886940A (en) * | 1956-06-16 | 1959-05-19 | Kanegafuchi Spinning Co Ltd | Apparatus for automatically mounting and dismounting a bobbin for a spinning machine, a twister and the like |
US3176458A (en) * | 1962-11-13 | 1965-04-06 | Draper Corp | Bobbin doffing mechanism |
US3116587A (en) * | 1962-12-19 | 1964-01-07 | Willcox & Gibbs Sewing Machine | Doffing mechanism |
US3204397A (en) * | 1963-07-05 | 1965-09-07 | Draper Corp | Doffing mechanism |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3546870A (en) * | 1967-02-13 | 1970-12-15 | Barber Colman Co | Method and machine for automatically relocating spinning frame travelers |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DELTA ACQUISTION CORPORATION; HORNADAY RD., GREENS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ROCKWELL INTERNATIONAL CORPORATION;REEL/FRAME:004113/0020 Effective date: 19820321 Owner name: DRAPER CORPORATION, Free format text: CHANGE OF NAME;ASSIGNOR:DELTA ACQUISITION CORPORATION,;REEL/FRAME:004097/0735 Effective date: 19820920 |
|
AS | Assignment |
Owner name: CITICORP INDUSTRIAL CREDIT INC., A CORP. OF DE Free format text: SECURITY INTEREST;ASSIGNOR:DRAPER CORPORATION A CORP. OF GA F/K/A DELTA ACQUISITION CORPORATION;REEL/FRAME:004070/0533 Effective date: 19821021 |
|
AS | Assignment |
Owner name: DRAPER CORPORATION, GREENSBORO, NORTH CAROLINA A C Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP INDUSTRIAL CREDIT, INC.;REEL/FRAME:004664/0583 Effective date: 19860331 |