US3290872A - Yarn severing device - Google Patents
Yarn severing device Download PDFInfo
- Publication number
- US3290872A US3290872A US526464A US52646466A US3290872A US 3290872 A US3290872 A US 3290872A US 526464 A US526464 A US 526464A US 52646466 A US52646466 A US 52646466A US 3290872 A US3290872 A US 3290872A
- Authority
- US
- United States
- Prior art keywords
- bobbin
- yarn
- spindles
- machine
- track
- 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
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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
- This invention pertains to a dofiin-g mechanism for removing fully wound bob-bins from the spindles of spinning or twisting frames or other similar machines and pertains more particularly to a device for severing the strand of yarn or like material which will extend from the surface of the wound bobbin to the base of the spindle.
- FIG. 1 is a rear elevation of a dofling and donning machine having a severing device attached and showing that side of the machine which faces a spinning frame;
- FIG. 2 is an enlarged portion of FIG. 1 in perspective as viewed through a row of spindles;
- FIG. 3 is a front elevation, in perspective, of the severing device in position upon a dofiing machine
- FIG. 4 is a modification of a portion of the device shown in FIG. 3.
- FIGS. 1 and 2 a doffing and donning machine, generally designed 20, is shown with the instant invention applied thereto. It will be understood that only the dofling operation is involved with the device of this application so that a machine for that purpose alone might be used with satisfactory results.
- the machine 20 is adapted to move horizontally by wheels 21 and 22 rolling upon a spinning frame rail (not shown) in a known manner.
- a fragmental portion of a spinning frame is shown as a row of spindles 23 extending upward- 3,290,872 Patented Dec. 13, 1966 1y through a ring rail 24 with a series of wound bobbins 25 in the various positions assumed during a dotf.
- a loosening cam 26 and a bobbin raising cam 27 are movably fixed to the machine 20 in such a manner that they may both be moved toward and away from the row of bobbins 25.
- the two cams 26 and 27 are moved toward the row of spindles 23 to be in line with the butts of the filled bobbins.
- the cam 26 will loosen each bobbin on its spindle 23 and each will ride up the edge 28 of the cam 27.
- a yarn severing device generally designated 29 (FIG. 3), is fixed to the machine 20 to be movable therewith and so as to be movable with the cams 26 and 27 toward and away from the row of spindles 23.
- a bobbin supporting track 30 having enclosing side members 31 and 32 is fastened to form a continuing path from that of the raising cam edge 28.
- the track 30 curves forwardly of the machine 20 with its width being sufficient to allow bobbin butts to slide freely therethrough.
- a front guiding Wall 34 is fastened in an upright position generally above the side member 311 and a rear guiding wall '35 is fixed opposing wall 34 and generally above the side 32.
- the walls 34 and 35 form a passageway through which the intermediate body of a wound bobbin may pass.
- the wall 35 is fastened to a supporting arm 36 (FIG. 3) as by screws 37.
- a leaf spring 38 is fastened to the arm 36 so that its free and 39 extends flexibly into the passageway between walls 34 and 35.
- the free end 39 will reduce the width of the passageway by pressing the bobbins forwardly against the wall 34.
- Fixed to the free end 39 is a pad 40 of any suitable high friction material which may be of rubber, leather or of a similarly acting plastic material. The purpose of the pad is to restrain each bobbin from rotating or unwinding the yarn as it passes through the guiding channel.
- the supporting track 30 has a notched shoulder 41 upon its rearwardly facing edge as seen in FIG. 3.
- the shoulder 41 will trap the yarn as the machine 20 moves along the row of spindles.
- the pad 40 together with the subsequent bobbins will restrain each bobbin from rotating or unwinding yarn and, as each is moved away from its spindle, the tension on the yarn will cause it to break.
- the bobbins are. urged along the passageway and the track 30 by the subsequent bobbins being forced up the raising cam 27 and each will drop into a receiving container (not shown) placed in position for that purpose.
- FIG. 4 a yarn severing shoulder having a knife-like edge 43 is shown as a modification which may be substituted where yarn of exceptional strength is being dolfed.
- the invention provides a simplified means for severing the strand of yarn which may still connect the wound bobbin with the base of its spindle after having being dotted by mechanical means.
- a yarn severing device comprising (a) a bobbin butt supporting track disposed generally as a continuation of said raising cam,
- said supporting track includes a yarn severing shoulder for positioning the end of yarn to be severed which extends from the dotted bobbin to the base of a spindle.
- said guiding channel comprises a pair of opposing upright walls forming a passageway therebetween, and said bobbin engaging member being secured between said pair of Walls thereby reducing the extent of passageway therethrough.
- said bobbin engaging member includes a leaf spring having one end fastened to one wall of said pair of walls and a second end flexibly extending into said passageway.
- said bobbin engaging member includes a contacting surface of high friction material for holding a bobbin from rotation during its movement through said passageway.
- Mechanism as defined in claim 1 which further comprises (a) a yarn severing shoulder for positioning the end of yarn to be severed which extends from the dotted bobbin to the base of a spindle,
- said guiding channel including a pair of opposing upright walls forming a passageway therebetween,
- said member including (1) a leaf spring having One end fastened to one wall of said pair of walls,
- said supporting track includes a bobbin slide-back guard for retaining the dotted bobbin upon the said supporting track.
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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 |
---|---|---|---|
US526464A US3290872A (en) | 1966-02-10 | 1966-02-10 | Yarn severing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US526464A US3290872A (en) | 1966-02-10 | 1966-02-10 | Yarn severing device |
Publications (1)
Publication Number | Publication Date |
---|---|
US3290872A true US3290872A (en) | 1966-12-13 |
Family
ID=24097457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US526464A Expired - Lifetime US3290872A (en) | 1966-02-10 | 1966-02-10 | Yarn severing device |
Country Status (1)
Country | Link |
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US (1) | US3290872A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3444678A (en) * | 1968-03-25 | 1969-05-20 | Marshall John D | Yarn severing mechanism |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653440A (en) * | 1949-01-15 | 1953-09-29 | Partington Harold | Means for doffing ring frames |
US3077725A (en) * | 1961-11-15 | 1963-02-19 | Willcox & Gibbs Sewing Machine | Doffing and donning machine |
US3175349A (en) * | 1957-01-05 | 1965-03-30 | Escursell-Prat Roberto | Doffing and donning apparatus for spinning machines |
US3176458A (en) * | 1962-11-13 | 1965-04-06 | Draper Corp | Bobbin doffing mechanism |
-
1966
- 1966-02-10 US US526464A patent/US3290872A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653440A (en) * | 1949-01-15 | 1953-09-29 | Partington Harold | Means for doffing ring frames |
US3175349A (en) * | 1957-01-05 | 1965-03-30 | Escursell-Prat Roberto | Doffing and donning apparatus for spinning machines |
US3077725A (en) * | 1961-11-15 | 1963-02-19 | Willcox & Gibbs Sewing Machine | Doffing and donning machine |
US3176458A (en) * | 1962-11-13 | 1965-04-06 | Draper Corp | Bobbin doffing mechanism |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3444678A (en) * | 1968-03-25 | 1969-05-20 | Marshall John D | Yarn severing mechanism |
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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 |