EP0682129A1 - Rotierende schaftmaschine - Google Patents

Rotierende schaftmaschine Download PDF

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Publication number
EP0682129A1
EP0682129A1 EP93911541A EP93911541A EP0682129A1 EP 0682129 A1 EP0682129 A1 EP 0682129A1 EP 93911541 A EP93911541 A EP 93911541A EP 93911541 A EP93911541 A EP 93911541A EP 0682129 A1 EP0682129 A1 EP 0682129A1
Authority
EP
European Patent Office
Prior art keywords
locking means
driving shaft
common driving
loom
speed
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.)
Withdrawn
Application number
EP93911541A
Other languages
English (en)
French (fr)
Other versions
EP0682129A4 (de
Inventor
Stanislav Viketievich Toritsyn
Mikhail Ivanivich Zelensky
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
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0682129A1 publication Critical patent/EP0682129A1/de
Publication of EP0682129A4 publication Critical patent/EP0682129A4/xx
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds

Definitions

  • the present invention relates to the art of textile machine building and is particularly concerned with the construction of a loom dobby.
  • the instantaneous stoppage of the cranks causes an increase in the dwelling period of the healds in the open shed (up to 120 deg of the loom main shaft angle) and respectively causes a decrease in movement of the healds and leads to their inertial overloading.
  • the speed of known dobbies provided with a speed modulator is limited by a number of weft threads laid in a minute and amounts to 500 min ⁇ 1.
  • the pneumatic looms operating at a rotational speed of the main shaft of up to 1000 min ⁇ 1 are provided with hook-type dobbies which need no speed modulation at the input.
  • a rotary dobby comprising a common driving shaft associated with a loom main shaft through a kinematic transmission and provided with planetary engaging clutches the number of which corresponds to the number of heald frames, and which cooperate with a programmable device and cranks of lever motions of the heald frames by means of sun gears, pinion carriers, crown gears and locking means installed on pivots (SU, AF, 1647049, 1991).
  • a device for controlling the movement of a heald frame (US, A, 3568724, 1971) by means of a lever the upper portion of which controls the movement of the heald frames by way of lifting, lowering and keeping them at rest in compliance with the work cycle.
  • the main disadvantage of the known rotary dobbies resides in the use of a deep modulation of the speed at the input which limits the operating speed of the dobby on the loom to 500 cycles of laying weft threads per minute.
  • the kinematic and dynamic characteristics of such dobbies give way to the respective characteristics of a shedding motion with the heald frames driven by uniformly rotating cranks: with respect to design maximum operating speeds of the heald frames - by 1.5 times, with respect to accelerations - by 1.7 times and with respect to loads on the crank - by 2.4 times.
  • the dynamic characteristics they will be even much higher as it has been proved by experiments.
  • the basis of the present invention is the task of stepping up the operating speed of a rotary dobby on a loom by improving the kinematic and dynamic characteristics of the movement of heald frames.
  • a rotary dobby comprising a common driving shaft kinematically associated with a loom main shaft, a planetary engaging clutch for each heald frame cooperating by means of a sun gear, a pinion carrier, a crown gear and swivel locking means installed on pivots with a programmable device and with a crank of a lever motion of the heald frame
  • the common driving shaft of the rotary dobby is provided with cams operating by means of rollers, correspondingly associated via rockers and links with rockers freely installed on the common driving shaft, to which are attached the pivots with rotating locking means cooperating with the programmable device through the medium of a link gear.
  • Another alternative embodiment of the present invention may also be in the form of a dobby wherein the rocking axis of the rockers may be displaced relatively to the centre line of the driving shaft.
  • the link gear may be in another form.
  • a rotary dobby comprises a common driving shaft 1 associated by a kinematic transmission 2 with a main shaft 3 of a loom 4.
  • the common driving shaft 1 is provided with planetary engaging clutches 6 the number of which corresponds to the number of heald frames 5 of the loom 4, and each of which cooperates with a programmable device 12 and with a crank 13 of a lever motion of the heald frame 5 by means of a sun gear 7 secured on the common driving shaft 1, a pinion carrier 8, a crown gear 9 and locking means 10 and 11 intended respectively for locking the pinion carrier 8 and the crown gear 9.
  • the locking means 10, 11 are hingedly installed on pivots 15, 16.
  • Fig.3 illustrates the position of the cam mechanism at a moment when the heald frame 5 is dwelling in the open shed and the planetary engaging clutches 6 are being changed over.
  • the locking means 10 and 11 are connected with rocking bars 29 and 30 of the programmable device 12, associated with each other by means of a connecting rod 31 and preloaded by springs 32 and 33 disposed on rods 34 and 35.
  • the rod 35 is hingedly associated with a signaling means 36 which cooperates with a program carrier (not shown in the drawing) of the heald frame and also cooperates by its projection 37 with a knife blade 38 of a rocking bar 39 connected to the lever motion 14 and kept in constant contact with a knife 40.
  • the rotary dobby operates in the following manner.
  • the position of the signaling means 36 preset by the signal received from the program carrier in the preceding work cycle of the loom is reproduced by the heald frame in the subsequent cycle.
  • Fig.1 illustrates the heald frame 5 in the downward position and the signaling means 36 in a position corresponding to the downward position of the heald frame 5 in a subsequent work cycle of the loom.
  • An angular speed ⁇ i of the sun gear 7 is equal in magnitude and coincident in direction with an angular speed ⁇ m.s of the main shaft 3 of the loom 4 (Fig.1).
  • the rockers 17 and 18 transmit their speeds of turning to the locked pinion carriers 8 and the crown gears 9 of the planetary engaging clutches.
  • the pinion carriers 8 or the crown gears 9 locked by the locking means 10, 11 impart the additional speeds through the planetary mechanisms to the crown gears 9 or the pinion carriers 8 which are not locked by the locking means 10, 11.
  • Absolute speeds of the free (not locked by the locking means) pinion carrier 8 or crown gear 9 are formed by algebraic addition of components of speeds from two sources of motion: firstly, from the sun gear 7 and secondly, from the rocker 17 of 18 engaged by its locking means 10 or 11 with the planetary engaging clutch 6.
  • Rotation of the pinion carrier 8 at a speed of is accompanied in the process of the change-over of the planetary engaging clutch 6 by turning of the rocker 17 at the same speed
  • Movement of the rockers 17, 18 is smoothly retarded after the planetary engaging clutch is completely locked by the respective locking means which provides for a smooth acceleration of the unlocked crown wheel 9 or the pinion carrier 8 up to a constant speed maintained in the mainphase interval of the heald movement.
  • phase angle T (2) through which the locking means 10 accompanies the crown gear 9 is also equal to 30 deg.
  • the angle of rocking of the rocker on a section of movement at a constant speed: ⁇ m.s /6 - for the locking means 11 of the crown gears 9 and at a speed of ⁇ m.s /8 - for the pinion carriers 8 is equal to: - for the rocker 18 of the locking means 11 of the crown gears 9, - for the rocker 17 of the locking means 10 of the pinion carriers 8.
  • the complete phase period T of the turn of the rockers 17, 18 is equal to 90 deg and complete angles of rocking S are respectively equal to: 10 deg - for the rocker 18 of the locking means 11 of the crown gears 9 and 7.55 deg - for the rocker 17 of the locking means 10 of the pinion carriers 8.
  • the change-over and blocking of the locking means 10 of the pinion carrier 8 is accomplished at an angle of turn of the crank 13 equal to the doubled angle of turn of the rocker of the locking means of the pinion carriers 8 (15.1 deg) - within the limits of the heald frame dwelling in the open shed.
  • An advantage of the proposed invention resides in that in the period of the shed main movement the heald frame is actuated by means of the crank rotating at a uniform speed and for obtaining a shockless change-over effected in a short period of the open shed dwelling the pivots of the locking means are accompanying the rotary motion of the pinion carriers and crown gears of the planetary engaging clutch.
  • the shockless change-over of the pinion carriers and the crown gears of the planetary engaging clutches by the locking means is insured by the combined action of four factors: (1) accompaniment of the rotating lockable tooth spaces of the crown gear or the pinion carrier by the free locking means, (2) reduction of the speed of the lockable tooth spaces at the expense of turning the lockable tooth spaces by the locking means, (3) reduction of the angular speed of the common driving shaft effected on the pinion carriers and the crown gears, (4) installation of the cams for driving the pivots of the locking means on the high-speed common driving shaft.
  • a rotary dobby with a planetary principle of the change-over and without a speed modulator at the input is designed for use on all main types of shuttleless looms for production of fabrics of wide assortment from all kinds of fibres.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Transmission Devices (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
EP93911541A 1992-10-02 1993-02-04 Rotierende schaftmaschine Withdrawn EP0682129A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU5063881 1992-10-02
SU925063881A RU2001169C1 (ru) 1992-10-02 1992-10-02 Ротационна ремизоподъемна каретка
PCT/RU1993/000028 WO1994008081A1 (en) 1992-10-02 1993-02-04 Rotary heddle take-up carriage

Publications (2)

Publication Number Publication Date
EP0682129A1 true EP0682129A1 (de) 1995-11-15
EP0682129A4 EP0682129A4 (de) 1995-12-20

Family

ID=21614084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93911541A Withdrawn EP0682129A1 (de) 1992-10-02 1993-02-04 Rotierende schaftmaschine

Country Status (6)

Country Link
EP (1) EP0682129A1 (de)
JP (1) JPH08503743A (de)
KR (1) KR950703676A (de)
AU (1) AU4043193A (de)
RU (1) RU2001169C1 (de)
WO (1) WO1994008081A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103422214A (zh) * 2012-05-24 2013-12-04 史陶比尔法万举 梭口成型装置及安装有该装置的织布机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980019504A (ko) * 1998-03-16 1998-06-05 김기호 직기용 캠의 설계방법(planing method for double cam)
RU2167964C1 (ru) * 2000-03-10 2001-05-27 Торицын Станислав Викентьевич Привод ремизных рам ремизоподъемной каретки

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE735916A (de) * 1968-07-17 1969-12-16
SU681125A1 (ru) * 1973-03-15 1979-08-25 Всесоюзный Научно-Исследовательский Институт Текстильного И Легкого Машиностроения Привод ремизоподъемной каретки ткацкого станка
SU787500A2 (ru) * 1976-04-05 1980-12-15 Предприятие П/Я А-1450 Привод ремизоподъемной каретки ткацкого станка
SU1331920A1 (ru) * 1986-01-30 1987-08-23 Завод "Сибтекстильмаш" Ремизоподъемна каретка ткацкого станка
SU1647049A1 (ru) * 1986-04-16 1991-05-07 Новосибирский Завод "Сибтекстильмаш" Ротационна ремизоподъемна каретка ткацкого станка
SU1602893A1 (ru) * 1988-05-11 1990-10-30 Всесоюзный Научно-Исследовательский Институт Легкого И Текстильного Машиностроения Механизм управлени ремизоподъемной каретки ткацкого станка

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO9408081A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103422214A (zh) * 2012-05-24 2013-12-04 史陶比尔法万举 梭口成型装置及安装有该装置的织布机
CN103422214B (zh) * 2012-05-24 2016-04-20 史陶比尔法万举 梭口成型装置及安装有该装置的织布机

Also Published As

Publication number Publication date
EP0682129A4 (de) 1995-12-20
AU4043193A (en) 1994-04-26
JPH08503743A (ja) 1996-04-23
WO1994008081A1 (en) 1994-04-14
KR950703676A (ko) 1995-09-20
RU2001169C1 (ru) 1993-10-15

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