US3665568A - Thread gauging apparatus - Google Patents

Thread gauging apparatus Download PDF

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Publication number
US3665568A
US3665568A US106846A US3665568DA US3665568A US 3665568 A US3665568 A US 3665568A US 106846 A US106846 A US 106846A US 3665568D A US3665568D A US 3665568DA US 3665568 A US3665568 A US 3665568A
Authority
US
United States
Prior art keywords
knife
knife blade
thread
slider
movement
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
US106846A
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English (en)
Inventor
Jakob Stapfer
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.)
Machinenfabrik Schweiter AG
Original Assignee
Machinenfabrik Schweiter AG
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 Machinenfabrik Schweiter AG filed Critical Machinenfabrik Schweiter AG
Application granted granted Critical
Publication of US3665568A publication Critical patent/US3665568A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B65H63/061—Mechanical slub catcher and detector
    • 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

Definitions

  • the blade is made movable in a path back and forth by a camming member which has a large distance of movement with respect to the movement of the knife blade, so that widely spaced markings can be used to easily identify the accurate position of the knife blade with respect to the pin.
  • Thread gauging apparatus for use with thread spooling machines in which thread is carried over a pin and beneath a knife blade which accurately determines the thickness of the thread passing over the pin, to clear the thread of imperfections or excess thicknesses.
  • Thread gauging apparatus in which a knife blade is placed by a predetermined distance from a thread guide pin has been previously proposed. The distance between the blade and the pin is a measure of the yarn number and the quality of the yarn of the thread being engaged. To accurately determine the position of the knife blade with respect to the circumference of the thread guiding pin, it has previously been proposed to use calipers or other similar measuring instruments and then directly move the knife blade into proper adjustment.
  • Readjustment and possible checking of the distance of the knife blade from the circumference of the thread guiding pin can be carried out only when themachine is stopped, and the thread removed therefrom; it is thus difficult to supervise the position of the knife blade, and, additionally, changes in position of the knife blade with respect to the circumference of the pin cannot be readily detected.
  • the knife blade is arranged to travel in a predetermined adjustment path.
  • a motion transmission element such as a cam engages the knife blade (or a pin or other projection formed thereon) to move the knife blade in the adjustment path.
  • the movement thereof can be very much larger than the movement of the knife itself, so that accurate positioning of the knife blade can be easily indicated on an expanded, readily legible scale.
  • the gap between the edge of the thread guide pin and the knife edge can be accurately adjusted by using the expanded scale on the adjustment element, in combination with a bench mark on the apparatus, the ratio of distances moved by the adjustment element and the knife providing for a large movement by the adjustment element, with a very small movement of the knife, so that a fine positioning of the knife, and hence accurate adjustment of the gap becomes possible.
  • the single drawing is a perspective view of a thread gauging apparatus in accordance with the present invention.
  • a housing body 1 is arranged to be secured to a spooling machine, not further shown, for example by screws being passed through screw holes S.
  • a carrier 2 extends from housing 1 on which a thread guide-pin 3 is secured.
  • Thread guide pin 3 is of material which is highly wear resistant.
  • the edge of a knife blade 4 extends parallel to thread guide pin 3. Knife 4 is connected to a guide rail 5 running in a slide groove or track 6 formed in the housing body 1. Knife 4 can be moved in an adjustment path by motion of rail 5, towards or away from pin 3, and transverse thereto.
  • the distance d between the edge of the knife 4 and the circumference of guide pin 3 provides a measure for the degree of clearing and freedom from defects, that is the qualitative cleanliness of thread passing between pin 3 and the edge of the knife 4, given a thread with a predetermined yarn number.
  • the knife 4 is secured in position relative to the pin 3 by means of a screw 7, which passes through an elongated slot 8 in the guide rail 5, and which can be screwed into a suitable threaded opening in housing 1.
  • Element 9 in form of a slider, is located approximately in the middle of guide rail 5, transverse thereto, and arranged above guide rail 5. Slider 9 slides in grooves 10 formed in housing 1. A cover plate, removed in the figure and not shown completes the entire assembly. It may likewise be secured to screw holes S, and is preferably formed with a small projection fitting into track 6 to positively guide rail 5.
  • Slider 9 is formed with a constricted region in the zone overlying the rail 5, to form a pair of parallel control surfaces 1 l, sliding, without clearance and play, between a pair of pins 12 formed on the upper surface of rail 5.
  • transverse movement of the slider 9 causes sliding of rail 5, and with it of knife 4 to change the distance d between knife 4 and the thread guide 3.
  • the angle formed by the surface 11 with the adjustment path determined by rail 5 and tracks 6 determines the transmission ratio of movement of slider 9 and the distance of movement of knife rail 5.
  • a bench mark 13 is formed on the housing body 1, to cooperate with an indicator scale 4 on the slider, which can directly indicate the distance d in a suitable unit, the scale 14 being greatly enlarged with respect to the actual change of distance d.
  • slider 9 is formed with a thumb pressure plate 15 at its remote end, and biased into an extreme position, for example zero position of the gap, be means of a spring 16.
  • the slider itself can be arranged to move in a direction at an angle with respect to the path of displacement of the knife 4.
  • the slider itself can be moved by spindles, worm gears, rack and pinion arrangements, or the like.
  • the present invention has been illustrated particularly in connection with a thread gauging apparatus in which a slider has a camming surface moving at an angle with respect to the path of displacement of the knife blade.
  • a slider has a camming surface moving at an angle with respect to the path of displacement of the knife blade.
  • Various changes and modifications may be made within the inventive concept.
  • the camming arrangement formed of surfaces 11 and pins 12 can be considered a developed surface of a circular cam; thus, slider 9 can be replaced by a disk with a slot therein, forming a camming surface and, upon rotation of the disk, moving the knife rail 5, and with it knife 4, back and forth.
  • a slot may, for example, be a slot formed eccentrically with respect to the axis of rotation of the disk.
  • a disk having a pair of eccentric surfaces can be arranged between a pair of pins, such a pin 12, 12, rotation of the disk displacing the pins, and hence knife rail 5 and knife 4 as previously described.
  • Thread gauging apparatus having a thread guide pin (3) over which the thread is passed;
  • Apparatus according to claim 1 including knife blade guide means (5, 6) guiding said knife blade in an adjustment path towards and away from said pin;
  • said movable means engaging said knife blade comprises a camming means (1 l) engaging (12) said knife to move said knife in said path.
  • Apparatus according to claim 1 including a knife blade guide track (6) formed on said apparatus, guiding said knife blade in an adjustment path towards and away from said pin wherein said movable means engaging said knife blade comprises a slider (9) movable in a direction transverse to said path;
  • said knife is formed with a pair of pins, one each engaging one of said surfaces.
  • Apparatus according to claim 2 including a fixed bench mark formed on said apparatus adjacent said camming means, said camming means being formed with a scale cooperating with said bench mark.
  • Apparatus according to claim 2 including spring biasing means engaging said camming means to a rest position in which said predetermined distance is an extreme value;
  • Apparatus according to claim 2 including means retaining said camming means in a predetermined position on said apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Sewing Machines And Sewing (AREA)
  • Surgical Instruments (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US106846A 1970-01-27 1971-01-15 Thread gauging apparatus Expired - Lifetime US3665568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH111670A CH502946A (de) 1970-01-27 1970-01-27 Fadenreiniger

Publications (1)

Publication Number Publication Date
US3665568A true US3665568A (en) 1972-05-30

Family

ID=4202854

Family Applications (1)

Application Number Title Priority Date Filing Date
US106846A Expired - Lifetime US3665568A (en) 1970-01-27 1971-01-15 Thread gauging apparatus

Country Status (6)

Country Link
US (1) US3665568A (OSRAM)
JP (1) JPS4940340Y1 (OSRAM)
CH (1) CH502946A (OSRAM)
DE (1) DE7007745U (OSRAM)
FR (1) FR2075446A5 (OSRAM)
GB (1) GB1309334A (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4554742A (en) * 1983-09-16 1985-11-26 Ford Motor Company Dimensional checking tool
DE3710345A1 (de) * 1987-03-28 1988-10-13 Sipra Patent Beteiligung Knotenwaechter fuer garne und faeden

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1565853A (en) * 1923-10-30 1925-12-15 Eclipse Textile Devices Inc Device for operating on traveling yarns
US1716452A (en) * 1928-06-19 1929-06-11 Albert A Maino Slub catcher
US2002843A (en) * 1932-11-17 1935-05-28 Arthur E Truesdell Thread or yarn cleaner
US3321818A (en) * 1965-03-30 1967-05-30 Deering Milliken Res Corp Slub catcher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1565853A (en) * 1923-10-30 1925-12-15 Eclipse Textile Devices Inc Device for operating on traveling yarns
US1716452A (en) * 1928-06-19 1929-06-11 Albert A Maino Slub catcher
US2002843A (en) * 1932-11-17 1935-05-28 Arthur E Truesdell Thread or yarn cleaner
US3321818A (en) * 1965-03-30 1967-05-30 Deering Milliken Res Corp Slub catcher

Also Published As

Publication number Publication date
GB1309334A (en) 1973-03-07
JPS4940340Y1 (OSRAM) 1974-11-06
DE7007745U (de) 1970-12-17
FR2075446A5 (OSRAM) 1971-10-08
CH502946A (de) 1971-02-15

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