US2735540A - Lacing-up device - Google Patents

Lacing-up device Download PDF

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Publication number
US2735540A
US2735540A US2735540DA US2735540A US 2735540 A US2735540 A US 2735540A US 2735540D A US2735540D A US 2735540DA US 2735540 A US2735540 A US 2735540A
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US
United States
Prior art keywords
tow
feed rollers
lacing
nip
rollers
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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English (en)
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4637—With means to guide, position, or present work to work-feed means

Definitions

  • This invention relates to a lacing-up device. More particularly the invention is concerned with a device for quickly and easily feedinga running tow, sliver, strand, or the like, into the nip of a pair of feedrollers, rotating at a high velocity.
  • the present invention is applicable to the handling. of a running tow, sliver, strand, filament, yarn, thread, bundle of filaments, film, ribbon, band, fabric,,,or the like, whether made from natural, artificial, cellulosic', or synthetic materials.
  • the invention will be described as-it is'applicable to the handling of a running tow or bundle of filaments, it being understood that this is merely intended in an illustrative sense.
  • Threading and lacing-up a tow treating or forming apparatus at the start of operation may, under certain circumstances, be accomplished by hand since the apparatus, but not always the oncoming tow, may be run at a very slow speed at the start, but when the apparatus is in full scale-operation and operating at high speeds and a break in the tow should occur, it is impractical and wasteful to stop the apparatus and start again or to slow the apparatus down to such a speed that the apparatus may be safely rethreaded or relaced by hand. Therefore, it is desirable to have some sort of mechanism or device which will enable one to readily and easily thread a tow or a broken tow through a tow treating apparatus, tow forming apparatus and/or the like.
  • a running tow, sliver, strand, or the like, etc. may be quickly and easily fed into a tow feeding device, such as a pair of feed rollers, etc., without the danger of injury to the operator and without danger of damage to the tow, and the like.
  • Another object of the present invention is to provide a lacing-up device which is simple in construction and which reduces waste of the material being handled.
  • Another specific object of the present invention is to provide a lacing-up device which is pneumatically or hynite States Patent C ice draulically operated and contains a minimum number of movable mechanicalparts which are subject to wear.
  • a further object of the present invention is to provide a lacing-up device which can be'employed while the mechanism, with which it is associated, is in full operation at top speed.
  • the objectsvof'the present invention are accomplished by providing a piston positioned adjacent the path of travel of" a running tow or a bundle of filaments and also adjacent to the nip of afeeding'mechanism, such asv a. pair of feed rollers, and the like, into which the tow must be fed.
  • Attached to one end of the piston rod is a member having arcuate or curved sides, said sides converging toward the nip'of the feed rollers. The curvature of the sides ofthe member is approximately equal. to the curvature on the periphery of the feed rollers.
  • Figure l is a diagrammatic side elevation view of one embodiment of the. invention.
  • Figure 2 is an enlarged view of the lacing-up device shownin Figure 1 inoperative position
  • Figure 3 is a side elevation view of the lacing-up device as the same is employed in connection with a filament crimping. device, and
  • Figure 4 is a. view taken along the line IV- IV of Figure 1.
  • a tow or bundle of filaments. 3 is passed under a suitable guide' roller 4 and then above a pairof feed rollers 5 and 6.
  • a pairof feed rollers 5 and 6 When it is desired to thread the tow into the nip formed by the feed rollers 5 and 6, the tow is drawn across the top of the rollers and across the V-shaped knife-blade 7 positioned adjacent the rollers.
  • Any other type knifeblade or tow cutting device may be. employed if desired, such. as a straight knife-blade, rotary cutter, and the like.
  • an air cylinder 8 Positioned above the nip formed by the rollers 5 and 6 is an air cylinder 8 having a. piston 9 therein. Any other gas or, liquid, or mechanical means may be employed to actuate the piston 9 if desired.
  • the piston-rod lit extends downwardly toward the feed rollers and has a member 11 attached to the lower end thereof.
  • the member 11 acts as a tow positioning member to direct the tow into the nip when it is actuated.
  • the member 11 has two arcuate or curved lower surfaces 12 and 13 which converge toward the nip of the rollers-5 and 6, the curvature thereof being approximately equal to the curvature on the periphery of the rollers 5 and 6 respectively.
  • the lower end of member 11 is grooved at 11:: so as to fit around the tow 3 when the member 11 is actuated.
  • Mounted. on the member 11' at the ends thereof are the small freely rotatable rollers 14 and 15 which, when the piston has been lowered, rest upon the surfaces. of the rollers 5 and 6 or upon the tow-when the same is disposed therebetween.
  • an air line 16 Attached to the cylinder 8, adjacent the upper end thereof, is an air line 16 which is connected to a main air supply (not shown). Air is admitted to cylinder 8 through the line or conduit 16 by means of a hand valve, foot valve, and/or the like of conventional design, not shown. It is preferred to employ a foot operated valve to admit the air to cylinder 8 since this enables the operator to have both hands free to handle the tow 3 in directing the same across the top of the feed rollers 5 and 6 and the knife 7. While it is preferred to employ an air actuated piston, a liquid actuated piston may be employed if desired, or a mechanical lever apparatus.
  • an arcuate ring or stop 18 which limits the upward movement of the piston 9.
  • a compression spring 17 which serves to return the piston 9 against the stop 18, as shown in Figure 1, upon a release in the air pressure in the cylinder 8.
  • the tow 3 is directed by hand, or any other suitable means, across the top surface of the feed rollers 5 and 6 and across the knife-blade 7.
  • air is admitted to the cylinder 8 thus causing the member 11, and its associated parts, to be forced downwardly into the nip of the feed rollers 5 and 6 and at the same time carrying the tow 3 into the nip therewith.
  • the force of directing the tow 3 downwardly into the nip of the feed rollers causes the tow 3 to be gripped firmly in the V-shaped knife 7 and the same is thereby cut so that the tow is then free to pass between the feed rollers 5 and 6.
  • the action of lowering the piston and member takes place quickly, the time being approximately one second or less.
  • the lacing-up device is shown in operative position.
  • the rollers on the member 11 serve a two-fold purpose. Not only do they prevent the member 11 from contacting the surfaces of the rollers 5 and 6 but more important, they assist in feeding the tow into the nip of the feed rollers. That is, they are rotated by the feed rollers 5 and 6 in the feeding direction and consequently the tow 3 cannot move in any direction but into the nip of the rollers.
  • the lacing-up device of the present invention is shown as it is employed in feeding a tow into the nip of the feed rollers of a crimping device.
  • the crimping and relaxing chamber 20 is formed by the feed rollers 50, 6a, a panel 21, a removable cover plate 22, the diverging doctor blades 23, 24 and the downwardly inclined strip 25 which is one arm of a lever pivoted at 25a, the other arm 26 of which terminates in an enlarged portion 27.
  • the removable cover plate 22 may be screwed to the doctor blades which in turn are screwed to the panel 21.
  • the total weight of 26 and 27 must be lighter than arm 25.
  • doctor blades 23 and 24 are fixed to panel 21 in diverging relation with their upper ends abutting against rollers 5a, 6a, below the nip of the rollers, to control the deflection of the tow leaving the nip.
  • the lacing-up device shown and described in Figures 1 and 2, is positioned above the nip of rollers 5a, 6a.
  • lacing-up device of the present invention has proved extremely useful in connection with the crimping device as shown in Figure 3 and all danger of burns is thereby alleviated.
  • the present invention enables one to handle a running tow moving at high speeds, for example 500 feet per minute or more, and direct the same into the nip of feed rollers and the like, without danger or injury to the operator, and without danger of damage to the material.
  • the present device reduces the waste of the material being handled by a considerable amount, for example, about A, i. e. 10 to 6% down to 4 to 1%.
  • the lacing-up device of the present invention is easy to install in existing tow forming and treating apparatus and in addition is simple in construction and has a minimum number of movable mechanical parts which are subject to wear.
  • a lacing-up device for directing a running length of material into a feeding mechanism comprising material feeding means, material positioning means mounted adjacent the feeding means, said positioning means comprising a material-positioning member having curved sides converging toward the feeding means, rollers mounted on either side of the member at a point adjacent the curved sides thereof farthest removed from the feeding means, said rollers being positioned to contact the material when the material-positioning means is actuated, means for moving the positioning means toward and away from the feeding means, and material cutting means positioned adjacent the feeding means.
  • a lacing-up device for directing a running length of a material into a feeding mechanism, comprising a pair of rotatably mounted feed rollers, material positioning means mounted adjacent the nip of the feed rollers, and positioning means comprising a piston, a piston-rod attached to the piston, said piston-rod having a materialpositioning mmeber atached to the end thereof, said member having curved sides converging toward the nip of the feed rollers, rollers mounted on either side of the memher at a point adjacent the curved sides thereof farthest removed from the nip of the feed rollers, said rollers being positioned to rest upon the feed rollers when the material positioning means is actuated, means for moving the material positioning means toward and away from the nip, and material cutting means, positioned adjacent the feed rollers.
  • a lacing-up device for directing a running length of a material into a feeding mechanism, comprising a pair of rotatably mounted feed rollers, material positioning means mounted adjacent the nip of the feed rollers, said positioning means comprising a piston, a piston-rod attached to the piston, said piston-rod having a materialpositioning member attached to the end thereof, said member having curved sides converging toward the nip of the feed rollers, rollers mounted on either side of the member at a point adjacent the curved sides thereof farthest removed from the nip of the feed rollers, said rollers being positioned to rest upon the feed rollers when the material positioning means is actuated, pneumatic means for moving the material-positioning means toward and away from the nip, and a V-shaped knife-blade positioned adjacent the feed rollers for cutting the material when the material-positioning means is actuated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US2735540D 1951-11-14 Lacing-up device Expired - Lifetime US2735540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US307589XA 1951-11-14 1951-11-14

Publications (1)

Publication Number Publication Date
US2735540A true US2735540A (en) 1956-02-21

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ID=21855869

Family Applications (1)

Application Number Title Priority Date Filing Date
US2735540D Expired - Lifetime US2735540A (en) 1951-11-14 Lacing-up device

Country Status (4)

Country Link
US (1) US2735540A (enrdf_load_stackoverflow)
CH (1) CH307589A (enrdf_load_stackoverflow)
DE (1) DE1032472B (enrdf_load_stackoverflow)
NL (1) NL97156C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835836A (en) * 1986-07-04 1989-06-06 Uitert Johannes H Van Device for the cutting and removal of the strapping bands from an object
US5634385A (en) * 1993-03-12 1997-06-03 Sumitomo Wiring Systems, Ltd. Electric cable guiding device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0633130B2 (ja) * 1985-07-09 1994-05-02 デユプロ製造株式会社 紙折り装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2311174A (en) * 1940-12-06 1943-02-16 Du Pont Textile crinkler
US2326671A (en) * 1943-02-04 1943-08-10 Jr Joseph C Patterson Sheave and pressure rider
US2346194A (en) * 1941-03-17 1944-04-11 Robert L Sjostrom Sheet tearing device
US2481197A (en) * 1944-09-08 1949-09-06 Sulzer Ag Device for catching broken threads
US2505618A (en) * 1948-07-15 1950-04-25 Alfred T Hammerle Means for treating woolen slivers and the like
US2514557A (en) * 1948-08-07 1950-07-11 Alexander Smith & Sons Carpet Crimping apparatus
US2534459A (en) * 1945-04-23 1950-12-19 Scott & Williams Inc Strand feeding mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2311174A (en) * 1940-12-06 1943-02-16 Du Pont Textile crinkler
US2346194A (en) * 1941-03-17 1944-04-11 Robert L Sjostrom Sheet tearing device
US2326671A (en) * 1943-02-04 1943-08-10 Jr Joseph C Patterson Sheave and pressure rider
US2481197A (en) * 1944-09-08 1949-09-06 Sulzer Ag Device for catching broken threads
US2534459A (en) * 1945-04-23 1950-12-19 Scott & Williams Inc Strand feeding mechanism
US2505618A (en) * 1948-07-15 1950-04-25 Alfred T Hammerle Means for treating woolen slivers and the like
US2514557A (en) * 1948-08-07 1950-07-11 Alexander Smith & Sons Carpet Crimping apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835836A (en) * 1986-07-04 1989-06-06 Uitert Johannes H Van Device for the cutting and removal of the strapping bands from an object
US5634385A (en) * 1993-03-12 1997-06-03 Sumitomo Wiring Systems, Ltd. Electric cable guiding device
US5819621A (en) * 1993-03-12 1998-10-13 Sumitomo Wiring Systems, Ltd. Electric cable guiding device

Also Published As

Publication number Publication date
NL97156C (enrdf_load_stackoverflow) 1900-01-01
CH307589A (fr) 1955-06-15
DE1032472B (de) 1958-06-19

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