US2732683A - Hoffmann - Google Patents

Hoffmann Download PDF

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Publication number
US2732683A
US2732683A US2732683DA US2732683A US 2732683 A US2732683 A US 2732683A US 2732683D A US2732683D A US 2732683DA US 2732683 A US2732683 A US 2732683A
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Prior art keywords
rail
ring
chain
pulley
thread
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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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English (en)
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/36—Package-shaping arrangements, e.g. building motions, e.g. control for the traversing stroke of ring rails; Stopping ring rails in a predetermined position

Definitions

  • means are-interposed in the conventional chain connection for actuating the ring rail, which means are actuated by the moving spindle rail and responsive to the position thereof for controlling the movement of the ring rail in the manner specified in the paragraph next above.
  • Fig. 1 is a perspective diagrammatic view of the drive head of a ring-spinning machine equipped according to the invention
  • Fig. 2 is a diagram illustrating the operation of a modified mechanism according to the invention
  • Fig. 3 is an end view, partly in section, of means according to the invention interposed in the chain drive of the ring rail.
  • Fig. 4 is a longitudinal part sectional view of the means shown in Fig. 3.
  • Fig. 5 is a diagram illustrating a modification of a portion of the apparatus shown in Fig. 2.
  • numeral 1 designates an end wall supporting the drive mechanism of a ring-spinning machine, a frame 2 being connected with Wall 1. From frame 2 extends a spindle rail 3, a ring rail 4, a thread guide rail 40, and a cylinder rail 6. Wall 1 supports gears 7 for driving a conventional drawing frame, not illustrated, and a cam 8. The latter engages a cam follower 11 mounted on a swing lever 10 swinging on pin 9.
  • One end of a chain 13 is connected with a roller 12 at the free end of lever 10.
  • the other end of the chain extends partly around and is connected with roller 14 of a two-roller or pulley transmission 14, 15.
  • a chain 24 extends partly around and has one end connected with pulley 15, the other end of chain 24 extending partly around and being connected with pulley 25 of a double pulley arrangement 25, 26.
  • a chain 27 is laid partly around and is connected with pulley 26 and extends along the whole side of the machine. Chain 27' connected with chain 27 extends over a pulley 28 and carries a transverse member 29 supporting ring rail 4, for example as shown in my Patent Number 2,614,382.
  • the double pulley arrangement 14, 15 (Figs. 1, 3 and 4) comprises a sleeve portion 16" extending from pulley 15 and being rotatable on shaft or pin 16 and being rotatably mounted in the upper arm of two-arm lever 18.
  • Pin 16 has a cut-out 16'.
  • Roller or pulley 14, which is shrunk on or otherwise rigidly connected with sleeve 16" has a recess or cut-out 30 adapted to receive a cam member or dog 17 which is swingable on pin 31 parallel to the rotation axis of pin 16 and extending into the recess.
  • Cam member 17 has a part, preferably in the form of a follower roller 32, resting against the shaft 16.
  • the chain 13 is laid over the cam member 17 and is made fast on the pulley 14.
  • Roller 15 which is rigidly and coaxially connected with pulley 14 by means of the sleeve 16 carries a cam 33 displaceable on its circumference and adapted to be fixed in the desired position by means of a screw 33' (Fig. 3).
  • Chain 24 is laid over cam 33 and has an end connected with pulley 15.
  • Cam 33 has an inclined surface 34 changing the extent of movement of chain 24 upon rotation of pulley 15
  • Shaft or pin 16 is connected with a plate 23 fixed to spindle rail 3, by means of rod 22 whose upper end is slidably connected with a crank arm 21 extending from shaft 16.
  • the connection between rod 22 and plate-23 may be swingable as shown in Fig. l or rigid as shown in Fig. 2.
  • a two-arm lever 18 swings on a stationary pin 3 19.
  • the lower arm of the lever is provided with a pin 20 sliding in a slot in plate 23.
  • Plate 23 has a configuration to suit the structure of the spinning machine with which it is used. Two different forms are shown in
  • the rail 41 carrying thread guides 5 is supported by rods 35 which extend slidably through stationary transverse members 36 and through bores 37 in the spindle rail 3.
  • rods 35 which extend slidably through stationary transverse members 36 and through bores 37 in the spindle rail 3.
  • One only of the rods 35 is shown in Pig. 1.
  • An abutment ring 39 on rod 35 rests on the spindle rail 3 when the latter is in its upper positions causing thread guide rail 41 to move therewith, whereas an abutment ring 38 on rod 35 rests on the transverse member 36 and prevents further lowering of rail 40 when the spindle rail is lowered below a predetermined level.
  • the aforedescribed device operates as follows:
  • the power-driven cam 3 is continuously rotated and the follower roller 11 pressed thereto, causing oscillation of swing lever 1-0 whose movements are transmitted through chain 13 to the pulley arrangement 14, 15, therefrom through chain 2 1, roller pair 25, 26, chain 27, and chain 27 to the ring rail 4, raising and lowering the latter.
  • Several pulleys 28 and chains 27 may be provided and the chain 27 may be laid over a pulley 28 and hold a member 29 at the far right end of the machine, not shown.
  • Spindle rail 3 is in uppermost position when the base of the cop is formed. At that time pin 21) is at the lower end of the slot in plate 23 and shaft 16 which is supported by the upper arm of the lever 18 is in its lowest position.
  • Rod 22 lifts crank arm 21 and shaft 16 is in the position shown in Fig. 3 pressing cam member 17 out of recess 30 so that chain 13 is on a greater diameter than that of pulley 14.
  • the angular movement of the latter, upon depression of lever 10, is therefore smaller and the ring rail 4 is lifted less when the base of the cop is formed than if cam member 17 is in recess 30.
  • the spindle rail 3 is continuously lowered by conventional means, not shown. Because of the lowering of the spindle rail, rod 22 connected therewith pulls arm 21 down turning shaft 16 clockwise, so that the follower roller 32 on cam member 17 enters the recess .16 on shaft 16 and member 17 moves deeper into the recess 30.
  • Chain 13 is now on the surface of pulley 14 causing a greater angular movement thereof upon a down-swing of lever and a greater lift of the ring rail after formation of the cop base. Pin moves simultaneously to the left in the slot of plate 23,
  • Fig. 2 includes a diagrammatic showing of the relation of movements according to the invention: Ordinate r indicates the downward movement of the spindle rail 3, ordinate s indicates the concurrent upward movement of the ring rail 4, and ordinate 2 indicates the movement of the thread guides 5.
  • the winding stroke changes from a maximum H to a minimum h.
  • the abscissae of the diagrams in Fig. 2 represent the time during which the cop is formed.
  • Line F indicates the time during which the thread guide rail '40 is actuated; its vertical movement is nil after the base of the cop is completed;
  • line AC indicates the upward movement of the ring rail 4, the zigzag line representing the concurrent winding strokes;
  • line R indicates the downward movement of the spindle rail 3.
  • the advantage obtained by the method and device according to the invention resides in the fact that the length of the balloon formed by the thread during winding of the cop changes only from a value L to a value I at the beginning of the operation, and to a value L when the cop is completed.
  • the size of .the balloon diminishes quickly at the beginning of the formation of the cop, as long as the thread guides are moved downward with the spindle rail and the thread tension is reduced accordingly.
  • the balloon remains sufficiently .large to provide the desired slack in the thread up to completion of the cop.
  • the conditions are favorable during most of the time in which the cop is formed. Since the thread guides are moved only to the extent of the length of the base of the cop, no unfavorable conditions are produced in the thread running above the thread guide.
  • a vertically movable spindle rail a vertically movable thread guide rail, means connecting both said rails for simultaneous vertical movement thereof, a swing lever having a free end, a power-driven cam engaging said lever for actuation thereof, a vertically movable ring rail, a shaft, a first pulley, a second pulley rigidly and coaxially connected with the first pulley, said pulleys being rotatably supported by said shaft, a first chain having one end connected with the free end of said swing lever, the other end of said chain being connected with said first pulley and said chain being laid over said first pulley for rotating said pulleys upon movement of said swing lever, a second chain laid over the second pulley and having an end connected therewith, a mechanism connected with said second chain for actuation thereby and being connected with said ring rail for moving it vertically upon winding and unwinding of the second chain on and from said second pulley, and
  • said means supporting said shaft consisting of a two-arm lever swingable about a fixed fulcrum, said pulleys being rotatably supported by one arm of said two-arm lever, the other arm of said two-arm lever being slidably connected with said spindle rail.
  • a cam movable on the circumference of said second pulley and means for fixing said cam in the desired position, said second chain extending over said cam for moving said ring rail at a speed depending on the angular position of said cam, a cut-out in said first pulley, said shaft having a recessed and a cylindrical surface portion, and a cam member receivable in said cut-out and swingably connected with said first roller and having a part engaging the surface of said shaft, means connecting said shaft with said spindle rail for rotating said shaft in accordance with the movements of said spindle rail for changing the relative position of said cam member and of said shaft for swinging said cam member into said cut-out when said cam member engages said recessed surface portion of said shaft and for swinging said cam member out of said cut-out when said cam member engages the cylindrical surface portion of said shaft, said first chain extending over said cam member and rotating said pulleys at speeds depending on the position of said cam member.
  • said means connecting said shaft with said spindle rail comprising a crank arm extending from said shaft and a rod connecting said arm with said spindle rail.
  • ring-spinning and ring-doubling machines having a vertically movable spindle rail, a vertically movable thread guide rail, and a vertically movable ring rail: stationary guide means disposed below said guide rail, a vertical rod supporting said thread guide rail and slidably extending through said guide means and through said spindle rail, an abutment on said rod between said stationary guide means and said spindle rail to be abutted by the latter for carrying said rod and thread guide rail when said spindle rail is in its upper positions, an abutment on said rod between said thread guide rail and said stationary guide means for resting said rod on the latter when said spindle rail is moved below a predetermined level.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US2732683D 1950-06-29 Hoffmann Expired - Lifetime US2732683A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH688446X 1950-06-29

Publications (1)

Publication Number Publication Date
US2732683A true US2732683A (en) 1956-01-31

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ID=4529047

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US2732683D Expired - Lifetime US2732683A (en) 1950-06-29 Hoffmann

Country Status (5)

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US (1) US2732683A (de)
CH (1) CH283385A (de)
DE (1) DE866167C (de)
FR (1) FR1039053A (de)
GB (1) GB688446A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770093A (en) * 1951-10-04 1956-11-13 Saco Lowell Shops Spinning frame
US3203163A (en) * 1963-05-31 1965-08-31 Shuford Mills Inc Traverse and tension control for winding machines
US3447300A (en) * 1966-09-08 1969-06-03 Schlumberger Cie N Mechanism for effecting rising and falling movements of spindles for textile bobbins

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU32966A1 (de) * 1954-06-29
DE1078025B (de) * 1955-04-05 1960-03-17 Prince Smith & Stells Ltd Aufwindevorrichtung fuer Spinn- und Zwirnmaschinen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US624148A (en) * 1899-05-02 Spinning-frame attachment
US647656A (en) * 1899-07-31 1900-04-17 Fred M Garcelon Ring-spinning machine.
US1913616A (en) * 1931-06-26 1933-06-13 Sailer Adolf Ring spinning and twisting machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE566824C (de) * 1931-06-26 1932-12-22 Adolf Sailer Ringspinn- und Ringzwirnmaschine fuer die Bildung von Koetzern aussergewoehnlich grosser Laenge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US624148A (en) * 1899-05-02 Spinning-frame attachment
US647656A (en) * 1899-07-31 1900-04-17 Fred M Garcelon Ring-spinning machine.
US1913616A (en) * 1931-06-26 1933-06-13 Sailer Adolf Ring spinning and twisting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770093A (en) * 1951-10-04 1956-11-13 Saco Lowell Shops Spinning frame
US3203163A (en) * 1963-05-31 1965-08-31 Shuford Mills Inc Traverse and tension control for winding machines
US3447300A (en) * 1966-09-08 1969-06-03 Schlumberger Cie N Mechanism for effecting rising and falling movements of spindles for textile bobbins

Also Published As

Publication number Publication date
DE866167C (de) 1953-02-09
FR1039053A (fr) 1953-10-05
GB688446A (en) 1953-03-04
CH283385A (de) 1952-06-15

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