US2075571A - Mechanism for drawing textile rovings - Google Patents

Mechanism for drawing textile rovings Download PDF

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Publication number
US2075571A
US2075571A US113928A US11392836A US2075571A US 2075571 A US2075571 A US 2075571A US 113928 A US113928 A US 113928A US 11392836 A US11392836 A US 11392836A US 2075571 A US2075571 A US 2075571A
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US
United States
Prior art keywords
shaped member
arms
belts
side plates
frame
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
US113928A
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English (en)
Inventor
Casablancas Fernando
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.)
Individual
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Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US2075571A publication Critical patent/US2075571A/en
Anticipated expiration legal-status Critical
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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
    • D01H5/88—Cradles; Tensors

Definitions

  • the two guide rods which guide internally the front loops of the belts are constructed in ⁇ the form of a single U shaped member which is removably mounted in the frame of the mechanism.
  • the two arms of the U-shaped member which are of approximately flat shape and are inclined or convergent in cross section, and the profile of the front part of the side plates. of the frame are so formed that the lower arm of the U-shaped member is supported by the side plates both at its front edge and at its rear edge and is at the same time engaged by a stop or projection on the side plates, which prevents the rocking of the U-shaped member in the forward direction.
  • any sliding movement of the U-shaped member in the forward direction is also prevented owing to the inclined position of the two limbs thereof.
  • the upward movement of the U-shaped member is 50 prevented or limited by the same arrangement of the lower arms, or a small projection may be formed on the side plates to engage the upper arm of the U-shaped member, thus preventing the raising thereof.
  • Figure l is a sectional view of a drawing mechanism constructed in accordance with the invention showing the guide frame, the endless belts and the cylinders operating the belts,
  • Figure 2 is a front view of the frame and the member guiding the belts seen .ink the direction of the arrow II of Figure 1.
  • Figure 3 is a view in perspective on a larger scale of the U-shaped member guiding the belts.
  • Figure 4 isa detail view on a larger scale of one of the side plates of the frame showing the manner in which the U-shaped member is fitted therein.
  • Figure 5 shows a modification" in which the side plates are formed with a projection for retaining the upper limb of the U--shaped member in position.
  • Figure 6 is a detail view showing the form of the U-shaped member in cross section if it be desired to reduce the distance between its two limbs with the object of increasing the pressure exerted by the belts on the roving.
  • Figure 7 is a sectional view of a second constructlonal form of drawing mechanism according to the invention showing the guide frame, the belts and the cylinders.
  • Figure 8 is a detail view on a larger scale showing the form of the side plates of the frame shown in Figure 7.
  • Figure 9 shows a modification in which the side plates have a projection for retaining the upper limb of the U-shaped member in place.
  • the two belts I and 2 of the drawing mechanism are actuated by two cylinders 3 and 4 in the known manner and are guided in the lateral direction by a frame formed of two side plates 5 suitably connected together by transverse members 6 and 1.
  • one or both ends of the arms 9 and I0 are formed with l0 a widened portion in which is a recess II the edge of which is adapted to engage the side plate 5.
  • the widened part of the arms 8 and I0 in which the recess II is formed preferably constitutes an inclined edge I2 to facilitate th correct positioning of the member 8.
  • the U-shaped member 8 is fitted in the frame in such a manner that it cannot be displaced from its proper position during the operation of the mechanism even when the tension on the upper belt is below its correct value.
  • the member 8 may readily be Withdrawn by hand when necessary merely by grasping it by the part connecting the two arms and moving it slightly forward to disengage the recesses II from the edge of the plate 5, whereupon it may be withdrawn laterally from the mechanism.
  • the arrangement illustrated in Figure 5 may be adopted, in which the side plate 5 of the frame has, in addition to the recess I3, a projection I 4 which retains the upper arm of the member 8. These projections also ensure that the two arms of the member 8 cannot be bent apart, as sometimes occurs when the belts are very wide and the limbs of the U-shaped member are of relatively great length.
  • the lower arm 9 of the U-shaped member 8 rests on the part I5 of the edges of the side plates 5, so that it is also supported at its front and rearvedges, but in addition the plates 5 are each formed with a projection I6 which defines the position of the member 8 and prevents it from being displaced or fromjrocking forward.
  • the member 8 may readily be withdrawn and replaced by another similar member the arms of which are a different distance apart at the edges at which they touch the belts, with the object of varying,
  • the distance between the two arms 9 and I0 of the member 8 may be made bigger or smaller without varying the relative inclination of the arms, while it is also possible to give these arms the section illustrated in Figure 6, in which ⁇ each of them has at the edge at which it exerts friction on the belt,
  • a widened portion or flange I9 thus reducing the distance between the edges of the two limbs without varying, on the other hand, the distance apart or relative position of the body of these limbs.
  • a drawing mechanism for textile rovings utilizing a pair of endless belts
  • a frame comprising a pair of spaced apart side plates connected together and each formed at its front edge with a recess and a projection
  • a pair of rolls driving the said belts and a U-shaped member removably supported in said recesses with the arms of the said U-shaped member guiding internally the front loops of the said belts
  • said arms being parallel longitudinally, of flat shape and convergent in cross-section and being so vformed in conjunction with the said side plates that the lower of the said arms is supported adjacent both its front and rear edges in the said y projections on their front faces
  • a pair of rolls l driving the said belts and supported by the said frame
  • a U-shaped member removably supported in the said frame with the arms of the said U-shaped member guiding internally the front loops of the said belts, said arms being parallel longitudinally, of iiat shape and convergent in cross-section and being so formed in conjunction
  • a frame comprising a pair of spaced apart side plates connected together and each formed at its front edge with a recess and a projection, a pair of rolls driving the said belts and a U-shaped member removably supported .
  • said recesses with the arms of the said U-shaped member guiding internally the front loops of the said belts, said arms being parallel longitudinally, of fiat shape and convergent in cross-section and being so formed in conjunction with the said side plates that the lower of the said arms is supported adjacent both its front and rear edges in the said recesses and the upper of Said arms vis engaged at its upper face by the said projections to prevent rocking movement of the U-shaped member.
  • a drawing mechanism for textile rovings utilizing a pair of endless belts the combination of a frame comprising a pair of spaced apart side plates connected together and each formed at its front edge with a recess anrd a pairof projections, a pair of rolls driving the said belts and a U-shaped member removably supported in said recesses with the arms of the said U-shaped member guiding internally the front loops of the said belts, said arms being parallel longitudinally, 5 of ilat shape and convergent in cross-section and being so formed in conjunction with the said side plates that the lower of the said arms is supported adjacent both its front and rear edges in the said recesses and is engaged at its upper face by the l lower of said projections, and the upper of said arms is engaged at its upper face by the upper of said projections to prevent both rocking and forward movement of the U-shaped member.
  • a frame comprising a pair of spaced apart side plates connected together and each formed at its front edge with a pair of projections, a pair of rolls driving the said belts and supported 20 by the said frame, and a U-shaped member removably supported in the said frame with the arms of the said U-shaped member guiding internally the front loops of the said belts, said arms being parallel longitudinally, of at shape and 25 convergent in cross-section and being so formed in conjunction with the said side plates that the lower of the said arms is supported adjacent both its front and rear edges by the side plates and is engaged at its front edge by the lower of said 30 projections, and the upper of said arms is engaged at its upper face by the upper of said projections to prevent both rocking and forward movement of the U-shaped member.
  • a frame comprising a pair of spaced apart side plates connected together and formed with projections on their front faces, a pair of rolls driving the said belts and supported by the said frame, and a U-shaped member removably supported in the said frame with the arms of the said U-shaped member guiding internally the front loops of the said belts, said arms being parallel longitudinally, of fiat shape and convergent in cross-section and being so formed in conjunction with the said side plates that the lower of the said arms is supported adjacent' both its front and rear edges by the side plates and is engaged by the said projections to prevent rocking movement of the U-shaped member, said arms also being formed with recesses adjacent one of their ends and adapted to engage one of said side plates to prevent lateral movement of the U-shaped member.
  • a frame comprising a pair of spaced apart side plates connected together and formed with projections on their front faces, a pair of rolls driving the said belts and supported by the said frame, and a U-shaped member removably supported in the said frame with the arms of the said U-shaped member guiding internally the front loops of the said belts, said arms being parallel longitudinally, of at shape and convergent in cross-section and being so formed in conjunction with the said side plates that the lower of the said arms is supported adjacent both its front and rear edges by the Side plates and is engaged by the said projections to prevent rocking movement of the U-shaped member, said arms also being formed with recesses adjacent each of their ends and adapted to engage said side plates to prevent lateral movement of the U-shaped member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US113928A 1935-12-13 1936-12-02 Mechanism for drawing textile rovings Expired - Lifetime US2075571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES2075571X 1935-12-13

Publications (1)

Publication Number Publication Date
US2075571A true US2075571A (en) 1937-03-30

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US113928A Expired - Lifetime US2075571A (en) 1935-12-13 1936-12-02 Mechanism for drawing textile rovings

Country Status (4)

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US (1) US2075571A (enrdf_load_stackoverflow)
BE (1) BE418917A (enrdf_load_stackoverflow)
DE (1) DE668321C (enrdf_load_stackoverflow)
GB (1) GB470446A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536884A (en) * 1944-09-28 1951-01-02 Casablancas High Draft Co Ltd Drafting mechanism for textile fibers
US2905977A (en) * 1956-10-24 1959-09-29 Bouligny Inc R H Cradle pin for textile fiber drafting apparatus
US2944300A (en) * 1958-11-19 1960-07-12 Kenneth P Swanson Top roll cradle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908590C (de) * 1942-04-12 1954-04-08 Hermann Kluftinger Dipl Ing Riemchen-Streckwerk
DE915192C (de) * 1942-07-16 1954-07-15 Hermann Kluftinger Dipl Ing Riemchenfuehrung fuer Streckwerke
DE929471C (de) * 1950-12-23 1955-06-27 Deutscher Spinnereimaschb Ingo Doppelriemchen-Streckwerk fuer Spinnereimaschinen
US3429010A (en) * 1964-08-19 1969-02-25 Goffredo Fusaroli Drawing device for textile fiber preparation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536884A (en) * 1944-09-28 1951-01-02 Casablancas High Draft Co Ltd Drafting mechanism for textile fibers
US2905977A (en) * 1956-10-24 1959-09-29 Bouligny Inc R H Cradle pin for textile fiber drafting apparatus
US2944300A (en) * 1958-11-19 1960-07-12 Kenneth P Swanson Top roll cradle

Also Published As

Publication number Publication date
DE668321C (de) 1938-12-01
BE418917A (enrdf_load_stackoverflow) 1937-01-30
GB470446A (enrdf_load_stackoverflow) 1937-08-16

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