US3499473A - Jacquard machine with electromagnetically controlled healds - Google Patents

Jacquard machine with electromagnetically controlled healds Download PDF

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Publication number
US3499473A
US3499473A US714162A US3499473DA US3499473A US 3499473 A US3499473 A US 3499473A US 714162 A US714162 A US 714162A US 3499473D A US3499473D A US 3499473DA US 3499473 A US3499473 A US 3499473A
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US
United States
Prior art keywords
healds
heald
leaf spring
hook
knife
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
US714162A
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English (en)
Inventor
Heinrich Fend
Ferenc V Nemethy
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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Publication date
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Publication of US3499473A publication Critical patent/US3499473A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards

Definitions

  • Each heald comprises at its upper end a hook-shaped stop which can be brought into engagement with a stationary knife by means of an electromagnet when the heald is in the upper position so that the heald drive can no longer lower the heald into its lower position.
  • the upper portion of the heald is constructed in the form of a leaf spring and, when the magnet is energised bends, with the stop, within range of the knife and, when the electromagnet is not energised, the stop describes a path of movement out of range of the knife.
  • the invention relates to a Jacquard machine having healds which comp-rise a stop and are movable between two end positions by means of a drive, having a holding member to hold each of the individual healds in the one end position and having an electromagnet to control the connection between heald and holding member in this end position.
  • the arrangement is such that the maximum possible number of magnets can be accommodated in a given space, since the magnets are disposed above the healds.
  • a further object of the invention is to provide a holding member which serves for a plurality of healds, as a result of which the construction of the device is simplified considerably because a separate holding member is not necessary for each heald.
  • a further object of the invention is to provide a device wherein the holding member holds the heald in a position which is in the path of movement of the heald in order to prevent a bending moment on the heald.
  • a further object of the invention is to provide a device in which the healds are held in guides but in which the friction between heald and guide is as low as possible.
  • the heald should be as easy as possible to produce.
  • FIGURE 1 shows a Jacquard machine diagrammatically in side elevation
  • FIGURES 2 to 8 show different embodiments of a leaf spring with holding member and electromagnet for the device illustrated in FIGURE 1 on a larger scale;
  • FIGURE 9 shows a further embodiment of the leaf spring in front elevation
  • FIGURE 10 shows the leaf spring illustrated in FIG- URE 9 with the holding member in side elevation
  • FIGURE 11 shows another embodiment of the leaf spring with holding member inside elevation.
  • a warp 11 is wound on a Warp beam 10.
  • This Warp 11 runs over a tension beam 12 and has a large number of warp threads of which only two warp threads 17 and 18 are illustrated in FIGURE 1. All the warp threads are guided in heald eyes.
  • the upper warp thread 17 is guided in the eye 15 of a heald 13 and the lower warp thread 18 is guided in the eye 16 of a further heald 14.
  • the warp threads 17, 18 pass to the edge 19 of the cloth from which the finished cloth 20 is wound onto a cloth beam 22 after having passed over a breast beam 21.
  • a shuttle 23 is conveyed in known manner through the shed 46 formed by the warp threads 17, 18.
  • Tension springs 25 and 26, which are secured by their free ends to the healds 13 and 14 and tend to pull the healds 13, 14 downwards, are attached to a stationary support 24.
  • leaf springs 29 Secured to the upper ends of the healds 13, 14 are leaf springs 29 which in turn each comprise a hook 45 at their upper end.
  • holding members in the form of stationary knives 39 by means of which the healds 13, 14 can be held in their upper position.
  • electromagnets 40, 47 through which the hooks 45 of the healds 13, 14 can be brought into engagement with the knives 39.
  • the stationary knife 39 is adapted in such a manner that when the magnet is not energised the path of movement of the heald 13 with the hook is beside the knife 39 and when the magnet 40 is energised the path of movement of the hook 45 comes within range of the knife 39 and the hook 45 can come into engagement with the knife 39.
  • the warip threads 17, 18 are under tension between tension beam 12 and breast beam 21, and the shed 46 is formed in the usual manner by raising and lowering the healds 13 and 14.
  • the shuttle 23 travels through this shed 46 to introduce the weft thread.
  • the warp thread 17 is at the top in its basic position while the warp thread 18 is in its lowest position.
  • the shuttle 23 can pass between the two threads 17 and 18.
  • the lowered warp threads 18 return upwards to the basic position and for the next passage of the shuttle, the warp thread .17 may be left in the basic position or lowered according to the pattern required.
  • the change of shed is effected by said drive for moving the healds.
  • the slide bar 30 is raised and lowered by this drive for each change of shed.
  • the hook 45 at the upper end of the leaf spring 29, which bends slightly, is bent so far towards the left (in FIGURE 2) towards the magnet head 43 that the path of movement of the hook 45 comes within range of the knife 39, and when the heald 13 is lowered by the slide bar 30, the hook 45 comes into engagement with the knife 39 and so cannot be lowered any further.
  • the slide bar 30 then travels down without the heald 13 as a result of which the pin 33 comes out of engagement with the hook 37.
  • the heald 13 is in this basic position. The spring is extended, the pin 33 below the hook 35 of the heald 13 is not in engagement with the hook 37.
  • the holding member 39 and the magnet 40, 47 determine in the manner described which healds are to be lowered with the slide bar 30 under the action of the springs 25, 26.
  • the slide bar 30 can remain in the end positions for a short time if the passage of the shuttle 23 requires it. This is necessary, in particular, in Jacquard machines having a single shuttle in order that the shuttle may pass completely through the shed extending over the whole width of the cloth before the change of shed is effected.
  • Jacquard machines with a travelling shed in which there are a plurality of sheds extending over the whole width of the cloth, the shed opens immediately in front of a shuttle and can change into the next position immediately behind the shuttle.
  • the strength of the magnets 40, 47 on the one hand and the strength of the leaf springs on the other hand may be adapted to one another in such a manner that contact between magnet 40, 47 and hook 45 takes place scarcely or not at all when the hook 45 passes out of the position shown in FIGURE 2 into the position shown in FIGURE 3.
  • the inclination of the face 44 and of the hook 45 may be appropriately selected in such a manner that bending out of the leaf spring 29 when the magnet 40 is energised is achieved with the minimum possible expenditure of energy so that the hook comes reliably into engagement with the knife 39 whereas the hook 45 travels reliably past the knife 39 when the magnet is not energised.
  • the tension present when the leaf spring 29 is in this position produces a component of force which tends to urge the heald 13 against the guide 38 while on the other hand the position of the knife 39 is selected in such a manner that, under the tension of the spring 25 at the lower end of the heald 13, a component of force which tends to urge the leaf spring 29 against the pin 33 is produced at the leaf spring 29 suspended on the knife 39. Said two components cancel each other out so that the leaf spring 29 is pressed neither against the guide 38 nor against the pin 33.
  • FIGURES 6 and 7 differs from the embodiments described hitherto firstly in that the upper end of the leaf spring 50 is of T-shaped construction and secondly by a different shape of the knife 51.
  • This T-shaped part forms a stop 52 co-operating with the knife 51.
  • the knife 51 comprises a recess 53 in which the upper end of the leaf spring 50 can penetrate under the action of the magnet 40 in such a manner that the T-shaped stop 52 bears against the knife 51.
  • the stop edge of the stop 52 which comes into contact with the knife 51, is situated in the plane formed by the leaf spring 50. As a result of this arrangement, no torque is produced on the leaf spring 50 by the force exerted on the heald 13 by the spring 25.
  • a bent hook is provided as a stop 62 at the upper end of the leaf spring 60.
  • the bending of this hook is selected in such a manner that the contact point between hook 62- and knife 61 lies in the plane formed by the leaf spring 60 in order to avoid torque on the leaf spring.
  • the mode of operation of this form is the same as in the examples previously described.
  • the T-shaped hook 72 illustrated at the upper end of the leaf spring 70 in FIGURES 9 and 10 essentially has the advantage that it is easier to produce. Whereas the hooks on the leaf springs in examples previously described have to be bent before the leaf spring is hardened, this hook can still be bent when the leaf 'spring has already been hardened without the hardened leaf spring breaking because the bending necessary is considerably less than with the other hooks.
  • a Jacquard machine comprising healds displaceable into a first and into a second end position, a heald drive, a stop constructed in the form of an armature on each heald, a holding member constructed in the form of a stationary knife to hold the individual healds in said first end position, an energisable electromagnet to control the connection between a heald and said holding member, said electromagnet, in the energised state, pulling said stop within range of said knife against a spring force as a result of which a movement of the heald towards said second end position by said heald drive is prevented, said spring force pulling said stop out of range of said knife when said electromagnet is not energised as a result of which a movement of the heald by said drive towards said second end position is rendered possible.
  • a Jacquard machine as claimed in claim 1 wherein a guide and a tension spring is provided for each heald, said tension spring tending to pull the associated heald into said second end position.
  • a Jacquard machine as claimed in claim 4 wherein said stop is constructed in the form of a T-shaped hook on the heald and said knife has a recess into which said portion of the heald constructed in the formof a leaf spring can penetrate.
  • T-shaped hook has an edge which can be brought into engagement with said knife, said edge being situated outside the plane in which said leaf spring lies.
US714162A 1967-03-10 1968-03-08 Jacquard machine with electromagnetically controlled healds Expired - Lifetime US3499473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH349067A CH471256A (de) 1967-03-10 1967-03-10 Jacquardmaschine mit elektromagnetisch gesteuerten Litzen

Publications (1)

Publication Number Publication Date
US3499473A true US3499473A (en) 1970-03-10

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Application Number Title Priority Date Filing Date
US714162A Expired - Lifetime US3499473A (en) 1967-03-10 1968-03-08 Jacquard machine with electromagnetically controlled healds

Country Status (11)

Country Link
US (1) US3499473A (de)
AT (1) AT281709B (de)
BE (1) BE711538A (de)
BR (1) BR6897484D0 (de)
CH (1) CH471256A (de)
DE (1) DE1710185B1 (de)
ES (1) ES351409A1 (de)
FR (1) FR1554517A (de)
GB (1) GB1219012A (de)
NL (1) NL6803457A (de)
SE (1) SE325837B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835894A (en) * 1972-01-25 1974-09-17 Muller J Apparatus for moving thread guide devices of textile machines
US3865148A (en) * 1972-05-19 1975-02-11 Sulzer Ag Jacquard machine
US3867966A (en) * 1971-10-16 1975-02-25 Sulzer Ag Electro-mechanical device for forming a shed in a weaving machine
US3871415A (en) * 1972-05-19 1975-03-18 Sulzer Ag Jacquard mechanism
US3884272A (en) * 1972-05-19 1975-05-20 Sulzer Ag Double-lift open-shed jacquard machine
US4072175A (en) * 1975-03-28 1978-02-07 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Loom with means for shed forming
CN106435911A (zh) * 2016-11-29 2017-02-22 江苏悦达家纺有限公司 一种带调节装置能防止竖针脱落的提花机
CN106560537A (zh) * 2016-05-26 2017-04-12 东华大学 音乐提花装置
CN109371525A (zh) * 2018-11-14 2019-02-22 南京云锦研究所有限公司 云锦拽手电子化织机
CN109853105A (zh) * 2018-12-16 2019-06-07 昆山高斯特电磁科技有限公司 可自动检测异常的智能提花机

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476694A1 (fr) * 1980-02-22 1981-08-28 Verdol Sa Dispositif perfectionne d'ouverture du pas sur un metier a tisser
JPS5823935A (ja) * 1981-07-28 1983-02-12 村田機械株式会社 織機のタテ糸開口装置
CH657162A5 (de) * 1982-07-01 1986-08-15 Textilma Ag Fachbildevorrichtung fuer eine webmaschine.
GB8306813D0 (en) * 1983-03-11 1983-04-20 Bonas Machine Co Heald control apparatus
GB8432476D0 (en) * 1984-12-21 1985-02-06 Bonas Machine Co Heald rod retention device
SE8503794L (sv) * 1985-08-14 1987-02-15 William E N Lauritsen Anordning for individuell styrning av oscillerande rorelser hos platiner, solv, nalar eller liknande tradforingsorgan i en snabbgaende textilmaskin
DE3713832C1 (de) * 1987-04-24 1988-06-23 Grosse Webereimaschinen Gmbh Platinen-Steuervorrichtung fuer Offenfach-Jacquardmaschine
DE3730695A1 (de) * 1987-09-12 1989-03-30 Wolfgang Herold Einzellitzensteuervorrichtung fuer eine webmaschine
IL119727A (en) * 1996-12-01 2000-06-29 Shenkar College Textile Tech Electrically controlled warp selection apparatus in looms
AT406965B (de) * 1998-09-17 2000-11-27 Wis Engineering Gmbh & Co Kg Vorrichtung zur fachbildung für eine jacquardmaschine
KR100902304B1 (ko) 2002-05-10 2009-06-10 텍스틸마 악티엔게젤샤프트 무선 실 제어장치
CN112210864A (zh) * 2020-09-18 2021-01-12 西安工程大学 一种织机开口装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2204891A (en) * 1939-02-15 1940-06-18 Hamilton Dev Corp Electrically controlled shedding mechanism for looms
FR1048906A (fr) * 1951-11-07 1953-12-24 Mécanique d'armure électrique
DE925279C (de) * 1952-01-06 1955-03-17 Neumag Geschlossenfach-Schaftmaschine
US2714901A (en) * 1949-08-12 1955-08-09 Electrotex Corp Electrical control system and apparatus
US2942626A (en) * 1955-02-10 1960-06-28 Cyril T Dracup Jacquard machines
US3103953A (en) * 1961-03-13 1963-09-17 Lauritsen William Shedding mechanisms
US3265096A (en) * 1963-02-13 1966-08-09 Oerlikon Buehrle Holding Ag Jacquard machine with individual electromagnetically controlled heddles
FR1476526A (fr) * 1965-03-31 1967-04-14 Webstuhlbau Karl Marx Stadt Métier jacquard à mouvement forcé

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2204891A (en) * 1939-02-15 1940-06-18 Hamilton Dev Corp Electrically controlled shedding mechanism for looms
US2714901A (en) * 1949-08-12 1955-08-09 Electrotex Corp Electrical control system and apparatus
FR1048906A (fr) * 1951-11-07 1953-12-24 Mécanique d'armure électrique
DE925279C (de) * 1952-01-06 1955-03-17 Neumag Geschlossenfach-Schaftmaschine
US2942626A (en) * 1955-02-10 1960-06-28 Cyril T Dracup Jacquard machines
US3103953A (en) * 1961-03-13 1963-09-17 Lauritsen William Shedding mechanisms
US3265096A (en) * 1963-02-13 1966-08-09 Oerlikon Buehrle Holding Ag Jacquard machine with individual electromagnetically controlled heddles
FR1476526A (fr) * 1965-03-31 1967-04-14 Webstuhlbau Karl Marx Stadt Métier jacquard à mouvement forcé

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867966A (en) * 1971-10-16 1975-02-25 Sulzer Ag Electro-mechanical device for forming a shed in a weaving machine
US3835894A (en) * 1972-01-25 1974-09-17 Muller J Apparatus for moving thread guide devices of textile machines
US3865148A (en) * 1972-05-19 1975-02-11 Sulzer Ag Jacquard machine
US3871415A (en) * 1972-05-19 1975-03-18 Sulzer Ag Jacquard mechanism
US3884272A (en) * 1972-05-19 1975-05-20 Sulzer Ag Double-lift open-shed jacquard machine
US4072175A (en) * 1975-03-28 1978-02-07 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Loom with means for shed forming
CN106560537A (zh) * 2016-05-26 2017-04-12 东华大学 音乐提花装置
CN106560537B (zh) * 2016-05-26 2018-06-12 东华大学 音乐提花装置
CN106435911A (zh) * 2016-11-29 2017-02-22 江苏悦达家纺有限公司 一种带调节装置能防止竖针脱落的提花机
CN109371525A (zh) * 2018-11-14 2019-02-22 南京云锦研究所有限公司 云锦拽手电子化织机
CN109371525B (zh) * 2018-11-14 2024-05-14 南京云锦研究所有限公司 云锦拽手电子化织机
CN109853105A (zh) * 2018-12-16 2019-06-07 昆山高斯特电磁科技有限公司 可自动检测异常的智能提花机

Also Published As

Publication number Publication date
CH471256A (de) 1969-04-15
ES351409A1 (es) 1969-06-01
BR6897484D0 (pt) 1973-04-26
NL6803457A (de) 1968-09-11
DE1710185B1 (de) 1970-11-19
BE711538A (de) 1968-07-15
SE325837B (de) 1970-07-06
GB1219012A (en) 1971-01-13
FR1554517A (de) 1969-01-17
AT281709B (de) 1970-05-25

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