US3499473A - Jacquard machine with electromagnetically controlled healds - Google Patents
Jacquard machine with electromagnetically controlled healds Download PDFInfo
- 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
- Authority
- 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
Links
- 238000005452 bending Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 210000000481 breast Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 241000218652 Larix Species 0.000 description 1
- 235000005590 Larix decidua Nutrition 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Electromagnets (AREA)
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 |
Family
ID=4257115
Family Applications (1)
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)
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)
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 |
RU2299935C2 (ru) * | 2002-05-10 | 2007-05-27 | Текстильма АГ | Бесшнуровое устройство управления нитями |
CN112210864A (zh) * | 2020-09-18 | 2021-01-12 | 西安工程大学 | 一种织机开口装置 |
Citations (8)
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 |
-
1967
- 1967-03-10 CH CH349067A patent/CH471256A/de not_active IP Right Cessation
-
1968
- 1968-02-08 SE SE01643/68A patent/SE325837B/xx unknown
- 1968-02-09 DE DE19681710185 patent/DE1710185B1/de active Pending
- 1968-02-13 AT AT133468A patent/AT281709B/de not_active IP Right Cessation
- 1968-02-23 FR FR1554517D patent/FR1554517A/fr not_active Expired
- 1968-03-01 BE BE711538D patent/BE711538A/xx unknown
- 1968-03-06 GB GB01000/68A patent/GB1219012A/en not_active Expired
- 1968-03-08 BR BR197484/68A patent/BR6897484D0/pt unknown
- 1968-03-08 US US714162A patent/US3499473A/en not_active Expired - Lifetime
- 1968-03-09 ES ES351409A patent/ES351409A1/es not_active Expired
- 1968-03-11 NL NL6803457A patent/NL6803457A/xx unknown
Patent Citations (8)
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)
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 |
---|---|
NL6803457A (de) | 1968-09-11 |
BR6897484D0 (pt) | 1973-04-26 |
DE1710185B1 (de) | 1970-11-19 |
CH471256A (de) | 1969-04-15 |
GB1219012A (en) | 1971-01-13 |
AT281709B (de) | 1970-05-25 |
ES351409A1 (es) | 1969-06-01 |
SE325837B (de) | 1970-07-06 |
BE711538A (de) | 1968-07-15 |
FR1554517A (de) | 1969-01-17 |
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