US3680598A - Drive arrangement for a feed roller on a loom - Google Patents

Drive arrangement for a feed roller on a loom Download PDF

Info

Publication number
US3680598A
US3680598A US881385A US3680598DA US3680598A US 3680598 A US3680598 A US 3680598A US 881385 A US881385 A US 881385A US 3680598D A US3680598D A US 3680598DA US 3680598 A US3680598 A US 3680598A
Authority
US
United States
Prior art keywords
arm
clutch
lever
drive arrangement
brake
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
US881385A
Other languages
English (en)
Inventor
Max Kunz
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.)
Ruti Machinery Works Ltd
Maschinenfabrik Rueti AG
Original Assignee
Maschinenfabrik Rueti 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 Maschinenfabrik Rueti AG filed Critical Maschinenfabrik Rueti AG
Application granted granted Critical
Publication of US3680598A publication Critical patent/US3680598A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms

Definitions

  • ABSTRACT A drive arrangement for the feed roller used to advance the warp threads required in the weaving process on a loom, which comprises brake means for halting the feed roller, an alternately engageable clutch transmitting rotary movements to the feed roller, drive means for alternately driving the clutch, and a transmission means having a transmission ratio that may be adjusted for connecting the drive means to the clutch.
  • This invention relates to a drive arrangement or apparatus for a feed roller of a weaving machine or loom for advancing the warp threads required in the weaving process, and more particularly to a drive arrangement which incorporates a brake for stopping the feed roller.
  • this invention contemplates a drive arrangement for a feed roller capable of achieving this result by providing an alternately engageable clutch that transmits rotary movements to the feed roller, by providing drive means for alternately driving the driving half of the clutch, and by connecting the drive means to the clutch through a transmission arrangement or means having a transmission ratio which can be adjusted as required.
  • FIG. 1 is a side view of a drive arrangement or apparatus of this invention.
  • FIG. 2 is a plan view, partly in section, taken along line II ll of FIG. 1.
  • a feed roller 11 having a retentive surface, is used to advance the warp threads by precisely predetermined amounts.
  • the feed roller 11 is firmly connected to the driven half or portion 13 of a clutch 12.
  • the driving half or portion 14 of the clutch 12 can be brought into engagement with the half 13 by means of the clutch linings 15.
  • the plate 14 is moved perpendicularly to its plane for the purpose of engaging and disengaging the clutch. This movement takes place with the help of the lever-arms 16 which can be swung about the fixed pivot 17.
  • the arms 16 are firmly connected to the arm 18 which can likewise be swung about the pivot 17 and which is, in turn, linked to the rod 19.
  • the free ends of the arms 16 are adapted to slide in the groove 20.
  • a brake comprising a brake strip 21 is for holding the position of the feed roller 11.
  • the brake strip 21 engages half 13 of the clutch 12. It is biased by a spring 22.
  • the spring 22 presses on the lever 23, which is rotatable about a pivot and which is secured to one end of the brake strip 21. The other end of the strip is held by a fixed part of the frame of the loom.
  • a three-armed lever having arms 24, and 26, is provided for actuating the rod 19 and therefore the clutch plate 14 as well as the brake strip 21.
  • This lever can be swung about the pivot 27.
  • the free end of the arm 24 is guided in the eccentric groove 28 and, when the eccentric element in which the groove is formed rotates, a swinging movement is imparted to arm 24.
  • the arm 26 strikes the lever 23 and thereby removes the tension from the brake strip 21 by applying pressure to the spring 22.
  • the arm 25, strikes the spring 29, so that the rod 19 moves to the right and engages the clutch 12 by swinging the arm 18.
  • the arm 25 presses against element which can be secured at any position along the rod 19, the clutch 12 is released or disengaged.
  • a three-armed lever comprising the arms 31, 32 and 33.
  • This lever can be swung about the pivot 34.
  • the arm 31 is guided by the eccentric cam 35 and is constantly urged against this cam 35 by the compression spring 36.
  • the arm 32 has a slot 37 in which a slide member 38 is slidably fitted.
  • the slide member 38 is detachably secured to the arm 39 which, in turn, is firmly connected to the plate 14 of the clutch 12.
  • the arm 39 is thus likewise swung, the member 38 sliding in the slot 37, so that the plate 14 executes part-revolutions about the shaft 44.
  • the eccentric arrangement 28, 35 executes one revolution for each revolution of the main shaft of the loom.
  • the lever 24, 25, 26 executes a full swing.
  • the clutch 12 is initially engaged, since in the first place the arm 25 presses against the spring 29.
  • the levers l8 and 16, by pressing the spring 29 and pulling on the bar 19, are caused to rotate once about the pivot 17, so that the plate 14 moves into contact with the plate 13 and is engaged therewith. 1n the meantime, the arm 26 has also moved towards the lever 23.
  • the lever 24, 25, 26 continues to swing, the lever 23 swings in the clockwise direction and the brake strip 21 is thus released from the brake drum, so that the braking action ceases.
  • the feed roller is then held only by the clutch 12.
  • the illustrated arrangement is particularly suitable for terry looms, i.e. it is particularly suitable for actuating the pile warp threads.
  • the stop .40 there is additionally provided the stop .40. If necessary two stops 40 and 41, or still more, can be provided. These stops can be swung about the pivot 42.
  • the arm 31 moves on to the zone where the cam 35 is of reduced radius, it swings, together with the arm 33, in the anti-clockwise direction. If the stop 40 is then disposed in the pathof the end portion 43 of arm 33, the end portion strikes the stop 40. This causes the free end of the arm 31 to lift from the guide cam 35, and the pivoting of the lever 31, 32 and 33 is smaller than when arm 31 remains constantly in contact with the cam 35. Thus, when the arm 31 is lifted again by the cam 35 the rotation of the feed roller 11, and thus the amount of warp thread advanced also become smaller.
  • the move ment of the stop 40 into and out of the path of the end portion 43 is preferably achieved by means of the shedforming mechanism of the loom.
  • further stops e.g. of the additional stop 41, which can likewise be moved at choice into the path over which the end portion 43 swings, offers the possibility of adjusting the equipment to give a further predetermined warp feed incremenLSuch method of operation is used, for example, if different pile levels are to be formed in the fabric to be produced.
  • the stop 40 determines the feed for plain weaving and the stop 41 determines the feed for when the pile is short, whereas no stop is used in the case of a large pile.
  • the stop 41 is also advantageously actuated by the shed-forming mechanism of the loom.
  • a drive arrangement for the feed roller for advancing the warp threads required in the weaving process on a loom comprising brake means for halting the feed roller, an alternately engageable clutch control means for transmitting rotary movements to the feed roller, said clutch control means having a driven portion and a driving portion and brake actuating means operatively connected to said brake ments linked to the feed roller take place, a drive means for alternately driving the driving portion of the clutch control means, and a transmission means having a transmission ratio that may be adjusted as required for connecting the drive means to the driving portion of the clutch control means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US881385A 1968-12-09 1969-12-02 Drive arrangement for a feed roller on a loom Expired - Lifetime US3680598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1833268A CH492812A (de) 1968-12-09 1968-12-09 Antriebsvorrichtung für eine Förderwalze

Publications (1)

Publication Number Publication Date
US3680598A true US3680598A (en) 1972-08-01

Family

ID=4432210

Family Applications (1)

Application Number Title Priority Date Filing Date
US881385A Expired - Lifetime US3680598A (en) 1968-12-09 1969-12-02 Drive arrangement for a feed roller on a loom

Country Status (6)

Country Link
US (1) US3680598A (enrdf_load_stackoverflow)
BE (1) BE742780A (enrdf_load_stackoverflow)
CH (1) CH492812A (enrdf_load_stackoverflow)
CS (1) CS166249B2 (enrdf_load_stackoverflow)
FR (1) FR2025654A1 (enrdf_load_stackoverflow)
GB (1) GB1232380A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090293982A1 (en) * 2008-05-29 2009-12-03 Skaflestad Kristine K Beading loom with removable warp thread cartridge
CN101736498B (zh) * 2009-12-31 2011-08-10 王勇 毛纱加张力机构

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1125843A (en) * 1914-04-18 1915-01-19 Ernest Hall Attachment for looms.
US1322671A (en) * 1919-11-25 davis
GB601257A (en) * 1945-06-13 1948-05-03 William Bradley An improved speed and torque regulating device
GB649032A (en) * 1943-05-12 1951-01-17 Guillaume Diederichs Fils De Reversing gear for weaving looms
US2645250A (en) * 1950-09-22 1953-07-14 Marshall Field And Company Pattern controlled variable beat-up and pile warp feed mechanisms
SU116251A1 (ru) * 1958-02-22 1958-11-30 А.М. Кампус Позитивный основный регул тор периодического действи
US2888044A (en) * 1955-12-17 1959-05-26 Picanol Jaime Clutching means for weaving looms
GB1084430A (en) * 1965-04-09 1967-09-20 Albert Ernest Moessinger Improvements in or relating to looms
CH464111A (de) * 1966-10-03 1968-10-15 Sulzer Ag Frottierstoffwebmaschine
US3422860A (en) * 1967-07-18 1969-01-21 Callaway Mills Co Unidirectional braking means for terry loom pile warp let-off mechanism

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1322671A (en) * 1919-11-25 davis
US1125843A (en) * 1914-04-18 1915-01-19 Ernest Hall Attachment for looms.
GB649032A (en) * 1943-05-12 1951-01-17 Guillaume Diederichs Fils De Reversing gear for weaving looms
GB601257A (en) * 1945-06-13 1948-05-03 William Bradley An improved speed and torque regulating device
US2645250A (en) * 1950-09-22 1953-07-14 Marshall Field And Company Pattern controlled variable beat-up and pile warp feed mechanisms
US2888044A (en) * 1955-12-17 1959-05-26 Picanol Jaime Clutching means for weaving looms
SU116251A1 (ru) * 1958-02-22 1958-11-30 А.М. Кампус Позитивный основный регул тор периодического действи
GB1084430A (en) * 1965-04-09 1967-09-20 Albert Ernest Moessinger Improvements in or relating to looms
CH464111A (de) * 1966-10-03 1968-10-15 Sulzer Ag Frottierstoffwebmaschine
US3422860A (en) * 1967-07-18 1969-01-21 Callaway Mills Co Unidirectional braking means for terry loom pile warp let-off mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090293982A1 (en) * 2008-05-29 2009-12-03 Skaflestad Kristine K Beading loom with removable warp thread cartridge
US7677273B2 (en) * 2008-05-29 2010-03-16 Skaflestad Kristine K Beading loom with removable warp thread cartridge
CN101736498B (zh) * 2009-12-31 2011-08-10 王勇 毛纱加张力机构

Also Published As

Publication number Publication date
DE1960985A1 (de) 1970-06-18
CS166249B2 (enrdf_load_stackoverflow) 1976-02-27
DE1960985B2 (de) 1976-01-02
GB1232380A (enrdf_load_stackoverflow) 1971-05-19
CH492812A (de) 1970-06-30
BE742780A (enrdf_load_stackoverflow) 1970-05-14
FR2025654A1 (enrdf_load_stackoverflow) 1970-09-11

Similar Documents

Publication Publication Date Title
US3446250A (en) Temple for looms
US2749946A (en) Weft thread control in looms for weaving
US2817367A (en) Weaving machine
US3125127A (en) Locher
US3680598A (en) Drive arrangement for a feed roller on a loom
US2375316A (en) Warp letoff device
EP0626476B1 (en) Improved control system for tuck-in selvedge forming devices in a loom, in particular in a loom for terry cloth, formed by varying the reed beat-up position
US3565121A (en) Weft selecting and presenting apparatus
US3851679A (en) Device for retaining the end of a weft thread in looms
US2639732A (en) Weaving machinery and control
US3900051A (en) Apparatus and method for supplying pile warp threads in a loom for weaving terry cloth
US3339589A (en) Sley motion for terry loom
US2956588A (en) Method and means for controlling the operating of a weaving machine
US3612109A (en) Weaving machine
US2990854A (en) Selvage forming on fabrics
US3493013A (en) Manufacture of a leno interlacing
US2271202A (en) Warp control in power looms
US3875974A (en) Device for controlling gripper shuttles in looms
US3378041A (en) Shuttle drive
US3920052A (en) Terry warp feeding apparatus
US1747883A (en) Crossbar and open-weave loom
US3376900A (en) Looms operating with multi-color stationary weft supplies
US2918946A (en) Filling or weft thread detection in weaving machines
US2974688A (en) Method and means for stopping a weaving machine
US2722950A (en) Looms