US3138396A - Device in a warp tying machine - Google Patents

Device in a warp tying machine Download PDF

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Publication number
US3138396A
US3138396A US199037A US19903762A US3138396A US 3138396 A US3138396 A US 3138396A US 199037 A US199037 A US 199037A US 19903762 A US19903762 A US 19903762A US 3138396 A US3138396 A US 3138396A
Authority
US
United States
Prior art keywords
indexing
rotation
sun gear
knotting
mandrel
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
US199037A
Other languages
English (en)
Inventor
Gronert Paul
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.)
Knotex Maschinenbau GmbH
Original Assignee
Knotex Maschinenbau GmbH
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 Knotex Maschinenbau GmbH filed Critical Knotex Maschinenbau GmbH
Application granted granted Critical
Publication of US3138396A publication Critical patent/US3138396A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/16—Apparatus for joining warp ends

Definitions

  • the invention relates to a device for an optional singleor double-tying of two warp threads in a warp tying machine.
  • Such devices have been developed in order to enable the operator, depending on the kind of the thread, to tie threads together with single or double knots, the latter being desirable when a particular elasticity and smoothness of the thread requires it for the purpose of obtaining a fast tie.
  • the invention solves this problem by providing a knotting mandrel driven over a planetary gearing, the planet pinion being pivoted to a Geneva Wheel or other star Wheel which revolves about the same axis as the sun Wheel and which engages one or more indexing pins pertaining to an indexing mechanism acting as a singlerevolution shaft to be coupled to the main drive at will and, during half a revolution, rotating the Geneva wheel in such a manner that double speed is imparted tothe knotting mandrel.
  • the invention provides that the revolving indexing element is cam-shaped to control the movement of a lock via another cam, this lock acting on the Geneva wheel whilst it stands still.
  • the invention provides a recess on the revolving indexing element engaging a locking pawl arranged on a clutch shift lever which is pivoted to the machine frame.
  • FIG. 1 is a side elevation
  • FIG. 2 is a top View of FIG. l
  • FIG. 3 is a view across FIG. l, along the plane I-I.
  • the main driving shaft 1 carries a planetary gearing comprising an internal gear rim or sun gear 2 meshing with a pinion 3 engaging a gear 4 secured to a hollow shaft 5 whose axis coincides with shaft 1 and which revolves easily independent of shaft 1.
  • This hollow shaft 5 carries a gear 6 revolving the knotting mandrel 7 about its longitudinal axis via a helical gearing.
  • the pinion 3 is on the Geneva wheel 8 which is capable of revolving freely about an axis coinciding with the axis of shaft 1 in which connection a needle bearing 9 is spaced between this Geneva wheel and the hollow shaft 5.
  • the indexing pins 10 of an indexing element 11 engage the grooves 8a of the Geneva wheel, the indexing element 11 thereby acting as single-revolution shaft which means that it performs one revolution per knotting operation after it has been connected with the shaft 13 revolving with the main driving shaft 1 by means of the clutch 12.
  • the shifting sleeve 12 of the clutch 12 is put in motion by a fork-shaped arm 14 which is on a lever pivoted at 15 to the machine frame, the arm 14 includes a locking nose 14 cooperating with a recess 16 in the cam 11. This cooperation is such that the clutch 12 may be disengaged only when the locking pawl 14 can drop into the recess 16.
  • the lever which carries the locking pawl 14 also carries a pin 1S to be grasped in an operators hand.
  • a handle sleeve 19 having a tapered end 198L is reciprocally received on pin 18.
  • a compression spring 20 draws this handle towards the lever. It is made to engage recesses 21 in a machine bracket 22 with its tapered end.
  • the sleeve handle 19 rst needs to be withdrawn along the pin 18 in a direction away from the bracket 22 out of recess 21, and only then it will be possible to displace the lever 14.
  • the circumference of the cam 11 of the single-revolution indexing element 11 acts on the roller 23 on a swivel arm 25 pivoted at 24.
  • the arm 25 has on its outer end a locking block 26 which drops into a recess 27 on the Geneva wheel 8 to lock it in position.
  • This lock becomes eifective when the indexing pins 10 do not act on the Geneva wheel so that, with the clutch 12 disengaged, i.e. when a single knot needs to be tied, the pinion 3 is retained against rotation.
  • the clutch is engaged.
  • the indexing pins 10 act on the Geneva wheel in such a manner that the pinion 3 imparts twice the original speed to the double gear block 4, 5, 6, enabling the knotter to perform two revolutions instead of one during the effective half revolution of the single-revolution shaft.
  • the Geneva wheel remains at a standstill, to permit the two thread ends to be put through the double sling at the same speed as with single knotting.
  • Operating mechanism for a warp tying machine to alternatively tie single or double warp threads comprising a knotting mandrel mounted on an axis of rotation, planetary gearing operatively connected to said knotting mandrel, said planetary gearing comprising a sun gear, a pinion gear meshed with said sun gear and a drive gear meshed with said pinion gear and journaled on an axis of rotation common with that of said sun gear and independently rotatable with respect to said sun gear, an indexing wheel journaled on the axis of rotation of said sun gear and having said pinion gear journaled thereon, said indexing wheel including spaced, radial indexing grooves opening into the outer periphery thereof, indexing means mounted on a one-revolution shaft parallel to the axis of rotation of said sun gear, said indexing means including an indexing element journaled on said one-revolution shaft and having portions engageable in said indexing wheel grooves, said indexing means including a clutch engageable between said indexing element and
  • indexing element comprises a cam having a peripheral control edge
  • said second displaceable abutment including a cam follower engaged on said peripheral control edge, said control edge determining periodic engagement of said second displaceable abutment with said wheel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Sewing Machines And Sewing (AREA)
US199037A 1961-06-14 1962-05-31 Device in a warp tying machine Expired - Lifetime US3138396A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK43990A DE1285958B (de) 1961-06-14 1961-06-14 Mit einem Knuepferdorn arbeitende Einrichtung zum wahlweisen einfachen oder doppelten Verknoten der beiden Kettenfaeden in einer Webkettenknuepfmaschine

Publications (1)

Publication Number Publication Date
US3138396A true US3138396A (en) 1964-06-23

Family

ID=7223299

Family Applications (1)

Application Number Title Priority Date Filing Date
US199037A Expired - Lifetime US3138396A (en) 1961-06-14 1962-05-31 Device in a warp tying machine

Country Status (4)

Country Link
US (1) US3138396A (da)
CH (1) CH397557A (da)
DE (1) DE1285958B (da)
DK (1) DK102730C (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974551A (en) * 1974-10-29 1976-08-17 Knotex Maschinenbau Gmbh Thread clamp for warp end tying-in machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707623C1 (de) * 1997-02-26 1998-05-28 Oskar Fischer Gmbh Maschf Webkettenanknüpfmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1099128A (en) * 1913-10-16 1914-06-02 Max Poege Jr Knotting appliance.
US2608426A (en) * 1947-05-02 1952-08-26 H V Mckay Massey Harris Propri Knot tying mechanism
US2678229A (en) * 1951-06-25 1954-05-11 Mcllor Bromley & Co Ltd Knot tier

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE289740C (da) *

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1099128A (en) * 1913-10-16 1914-06-02 Max Poege Jr Knotting appliance.
US2608426A (en) * 1947-05-02 1952-08-26 H V Mckay Massey Harris Propri Knot tying mechanism
US2678229A (en) * 1951-06-25 1954-05-11 Mcllor Bromley & Co Ltd Knot tier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974551A (en) * 1974-10-29 1976-08-17 Knotex Maschinenbau Gmbh Thread clamp for warp end tying-in machines

Also Published As

Publication number Publication date
CH397557A (de) 1965-08-15
DE1285958B (de) 1968-12-19
DK102730C (da) 1965-09-27

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