US1979509A - Driving mechanism for revolving needle bars of combing and gilling machines - Google Patents

Driving mechanism for revolving needle bars of combing and gilling machines Download PDF

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Publication number
US1979509A
US1979509A US731951A US73195134A US1979509A US 1979509 A US1979509 A US 1979509A US 731951 A US731951 A US 731951A US 73195134 A US73195134 A US 73195134A US 1979509 A US1979509 A US 1979509A
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US
United States
Prior art keywords
combing
needle bars
needles
bars
driving mechanism
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
US731951A
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English (en)
Inventor
Pierre Van Hille
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.)
FIRM OF ATELIERS SAINT ELOI
FIRM OF ATELIERS SAINT-ELOI
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FIRM OF ATELIERS SAINT ELOI
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 FIRM OF ATELIERS SAINT ELOI filed Critical FIRM OF ATELIERS SAINT ELOI
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Publication of US1979509A publication Critical patent/US1979509A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/02—Gill boxes or other drafting machines employing fallers or like pinned bars

Definitions

  • the object of the present invention a differential mechanism for driving revolving needlebars of combing machines and gill boxes used in the combing and drawing fibrous materials.
  • this mechanism overcomes the disadvantages of the present combing or preparing machines, particularly those with needle bars traversing a circular path (the so called sun machines) and the ordinary gill boxes with screw operated needle bars.
  • the ends of the needle bars engage in more or less radial grooves in the adjacent faces of two discs or suns, the bars also sliding upon cams.
  • the needles being guided by the bars engaging in the grooves in the discs are constrained constantly to change their inclination so that owing to their radial direction they do not properly penetrate the material to be combed and drawn, but pass through it at angles which constantly change, and disengage it too soon.
  • the operation is therefore defective and rather slow owing to the friction of the needle bars in the grooves and on the cams, this friction leading moreover to considerable wear.
  • crank shaft or eccentric provided with levers carrying the said bar at one end and two hinge joints at the other.
  • the crank gives the bar an ellipsoidal motion which it is difficult to balance. Further, since there is but a single needle bar, the output is low.
  • the improved driving mechanism consists of a kind, of diiferential gear. prises. a main driving shaft, a toothed wheel having a journal for each needle bar and arranged to impart thereto a rotary movement around a central axis so as to cause the bar needles to penetrate into, to comb and to be withdrawn from the material to be worked, a stationary shaft carrying said toothed wheel loose thereon, a couple of different pinions loosely mounted on said shaft, a pinion fixed on the driving shaft and meshing with one of the pinions of said couple and a pinion fixed on the needle bar and meshing with the other pinion of said couple, the different gears having such ratios that the bar needles in revolving remain parallel with themselves throughout their translation.
  • Figure 1 is a sectional elevation through a set of three needle bars revolving around a central axis and provided with material feeding and evacuating means.
  • FIG. 1 is a fragmentary section on the line IIII of Figure 1.
  • the material M to be drawn and combed is fed by an endless band or belt 1 moved in the direction of the arrow 1 by the rotation of two rollers 2, 3.
  • the material as it advances, is then seized between two feed rollers l, 5 of known type which rotate in opposite directions, and carried thereby into the region of operation of the needles 6 set in bars 7 of which three are shown in the drawing as constituting the combing or gilling system.
  • the needle bars 7 move in a Specifically it complanetary path about the geometric axis 0 of the system in such a manner that the needles 6 remain constantly parallel with themselves (vertical in the example illustrated).
  • the rotation of the needle bar set is indicated by the 1 arrow g.
  • the material is seized between an evacuating roller 8 and an endless belt 9 moved in the direction of the arrow f by means of driving rollers.
  • the treated material can now be collected in any convenient manner.
  • the rollers 4 and 5 can have a peripheral speed of 10 meters
  • the needle bars '7 may have a speed of 36 meters
  • the differential mechanism, maintaining the constant angular position of the needles is diagrammatically shown in Figure 2.
  • the ends of the bars '7, the number of which may vary and in which the needles 6 are set, turn in bearings in supporting sun wheels 11 which rotating about the geometric axis of wheel 11 give the bars a bodily rotation about this axis.
  • On one end of each bar 7 is keyed a pinion 12 meshing with a common pinion 13 rigid with a pinion 14.
  • These pinions 13 and 14 and the pinion 11 are loosely mounted upon a shaft 20 coaxial with the axis and which is fixed in side plates 15 forming part of the frame of the machine.
  • such a driving gear is arranged at both ends of the needle bars in order to avoid twisting; on the right hand in Figure 2, for sake of simplicity, only one part of the gear is represented.
  • the arrangement of the differential planetary gearing can obviously be varied without departing from the invention.
  • the pinions 13 could be replaced by hollow internally toothed pinions meshing with the pinions 12 which would then be located within said hollow pinions.
  • the invention is applicable to textile machines designed to operate upon the most various fibl. es, for example for opening, sorting, drawing, parallelization or combing, wherever comb needles have to penetrate a lap or mass of fibres What I claim is:-
  • a driving mechanism for revolving needle bars of combing and gilling machines comprising a main driving shaft, a toothed wheel having a journal for each needle bar and arranged to impart thereto a rotary movement around a central axis so as to cause the bar needles to penetrate into, to comb and to be Withdrawn from the material to be worked, a stationary shaft carrying said toothed wheel loose thereon, a couple of different pinions loosely mounted on said shaft, a pinion fixed on the driving shaft and meshing with one of the pinions of said couple and a pinion fixed on the needle bar and meshing with the other pinion of said couple, the different gears having such ratios that the bar needles in revolving remain parallel with themselves throughout their translation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US731951A 1933-06-30 1934-06-22 Driving mechanism for revolving needle bars of combing and gilling machines Expired - Lifetime US1979509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1979509X 1933-06-30

Publications (1)

Publication Number Publication Date
US1979509A true US1979509A (en) 1934-11-06

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ID=9682750

Family Applications (1)

Application Number Title Priority Date Filing Date
US731951A Expired - Lifetime US1979509A (en) 1933-06-30 1934-06-22 Driving mechanism for revolving needle bars of combing and gilling machines

Country Status (3)

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US (1) US1979509A (enrdf_load_html_response)
BE (1) BE403770A (enrdf_load_html_response)
FR (1) FR771377A (enrdf_load_html_response)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694836A (en) * 1950-10-07 1954-11-23 Pento Renato Apparatus for drawing textile roving
US3302759A (en) * 1962-05-23 1967-02-07 Whitin Machine Works Transmission and brake
US5509178A (en) * 1993-12-14 1996-04-23 Staedtler & Uhl Feed comb arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694836A (en) * 1950-10-07 1954-11-23 Pento Renato Apparatus for drawing textile roving
US3302759A (en) * 1962-05-23 1967-02-07 Whitin Machine Works Transmission and brake
US5509178A (en) * 1993-12-14 1996-04-23 Staedtler & Uhl Feed comb arrangement
AU675015B2 (en) * 1993-12-14 1997-01-16 Staedtler & Uhl Feed comb arrangement

Also Published As

Publication number Publication date
BE403770A (enrdf_load_html_response)
FR771377A (fr) 1934-10-06

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