EP0039651A1 - Electromagnetic control block for actuating the shedding mechanisms for looms - Google Patents

Electromagnetic control block for actuating the shedding mechanisms for looms Download PDF

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Publication number
EP0039651A1
EP0039651A1 EP81420065A EP81420065A EP0039651A1 EP 0039651 A1 EP0039651 A1 EP 0039651A1 EP 81420065 A EP81420065 A EP 81420065A EP 81420065 A EP81420065 A EP 81420065A EP 0039651 A1 EP0039651 A1 EP 0039651A1
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EP
European Patent Office
Prior art keywords
frame
cores
cover
electromagnets
control block
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Withdrawn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
EP81420065A
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German (de)
French (fr)
Inventor
Jean-Paul Froment
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.)
Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
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 Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP0039651A1 publication Critical patent/EP0039651A1/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures

Definitions

  • Control unit with electromagnets in particular for actuating the dobbies for weaving machines.
  • the present invention relates to a control device comprising a series of electromagnets intended for the selective actuation of a corresponding number of movable members arranged in superposition or side by side at a regular interval, in particular elements of a dobby for weaving machine
  • the frame preferably made of aluminum in order to have great rigidity while ensuring good thermal conduction for the evacuation of heat, is profiled along the wings of its U-shaped transverse profile so that the cover, provided with longitudinal bosses, can be fixed to said frame by simple snap-fastening.
  • the reference 1 designates a metal frame, of aluminum or of cast aluminum alloy, the length of which is equal to that of the control block to be produced and therefore depends on the number of electromagnets thereof.
  • this frame 1 has a U-shaped profile in cross section, the inner face of each branch being hollowed out with a longitudinal depression la.
  • the transverse edges of the bottom of the frame 1 are arranged to allow easy attachment of the entire control unit; in the exemplary embodiment envisaged, it has been assumed that these edges were pierced with holes Ib for the passage of screws or bolts.
  • the frame 1 is provided with reinforcing ribs which improve its rigidity and which determine ventilation channels facilitating the evacuation of the heat in the ambient air.
  • a cover 2 also made of aluminum or a light alloy based on aluminum.
  • Each of the side walls of this cover 2 has an external boss 2a which extends longitudinally to snap into place, by means of momentary elastic deformation, inside the corresponding depression 1a of the frame 1.
  • the bottom of the cover 1 is cut out. of two parallel rows of openings 2b, established with a flattened rectangular profile oriented transversely with respect to the axis of the cover; into each pair of transversely aligned openings 2b are introduced the ends, forming poles 3a, of the two branches of a soft iron core 3, with the usual U-shaped profile.
  • each core 3 On one of the branches of each core 3 is engaged the tubular support 4 of a coil 5; the lateral cheeks of this support 4 bear against the bottom of the core 3 and against the internal face of the cover 2, thus opposing the movement of said core towards the outside, while its movement towards the inside is limited by bearing against a positioning plate 6.
  • the latter is fixed against the edges of the cover 2 and it extends over the entire length of the base thereof; it will be noted that this plate 6 is cut out from a series of central windows 6a with a rectangular profile elongated transversely, in each of which is housed a boss 3b formed on each of the cores 3. '
  • each coil 5 is connected by connections 7 to a printed circuit 8 applied against the underside of the positioning plate 6; this circuit 8 is itself electrically connected to a common power cable 9 housed between said circuit and the bottom of the frame 1.
  • the fixing of the printed circuit 8 against the plate 6 and of the latter against the open base of the cover 2 is advantageously ensured by the pins 7, the protruding ends of which are welded against the aforementioned circuit after crossing it and the plate.
  • the free interior space of said carcass is filled with a mass 10 of resin synthetic injected through appropriate openings, said mass 10 filling all the voids left between the cores 3, the coils 5, the plate 6, the cable 9, etc.
  • a compact block is therefore finally obtained, having perfect rigidity while being capable of dissipating in a particularly effective manner the heat released following an intensive operation of the windings 5.
  • the constituent elements are positioned precisely, so that the filling operation cannot disturb the construction.
  • the invention makes it possible to produce a unit of monobloc, independent and waterproof electromagnets, connected to an electronic control panel by a single cable, so that in the event of a breakdown, it suffices to disconnect this cable and remove the device to replace it Maintenance of the equipment is thus considerably simplified.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)

Abstract

Le capot (2) encliqueté dans l'armature (1) renferme une série de noyaux (3) maintenus en place par appui des bobines porte-bobinage (4) et par une plaque (6). Cette dernière supporte un circuit imprimé (8) relié aux bobinages (5) et au câble (9). L'ensemble de la carcasse (1-2) est rempli d'une masse (10) de résine injectée.The cover (2) snapped into the frame (1) contains a series of cores (3) held in place by support of the winding reels (4) and by a plate (6). The latter supports a printed circuit (8) connected to the windings (5) and the cable (9). The entire carcass (1-2) is filled with a mass (10) of injected resin.

Description

Bloc de commande à électro-aimants, notamment pour l'actionnement des ratières pour machines à tisser.'Control unit with electromagnets, in particular for actuating the dobbies for weaving machines. '

La présente invention a pour objet un dispositif de commande comprenant une série d'électro-aimants destinés à l'actionnement sélectif d'un nombre correspondant d'organes mobiles disposés en superposition ou côte à côte à un intervalle régulier, notamment des éléments d'une ratière pour machine à tisseraThe present invention relates to a control device comprising a series of electromagnets intended for the selective actuation of a corresponding number of movable members arranged in superposition or side by side at a regular interval, in particular elements of a dobby for weaving machine

L'invention a plus spécialement pour but de permettre la réalisation d'un bloc de commande du type sus-visé qui soit de construction simple et robuste et dans lequel les électro-aimants d'actionnement sont susceptibles d'être prévus à un écartement très réduit, tout en étant aptes à fournir une puissance maximale:

  • Le bloc suivant l'invention est principalement remarquable en ce qu'il comprend en combinaison une armature à section transversale en forme de U, un capot de protection fixé par sa base ouverte dans l'armature et découpé de deux séries parallèles d'ouvertures établies au profil des pôles des électro-aimants, une pluralité de noyaux en nombre égal à celui des ouvertures de chaque série, des bobinages avantageusement montés de manière alternée sur l'une ou l'autre des branches des noyaux et dont le support à joues latérales porte contre la face intérieure du capot et contre le fond du noyau envisagé, une plaque de positionnement qui ferme la base de ce capot et qui présente une rangée de fenêtres pour le centrage de bossages prévus sur les noyaux, un circuit imprimé associé à un câble d'alimentation et maintenu contre la face intérieure de la plaque de positionnement, et une masse d'enrobage en résine synthétique, injectée de manière à remplir intégralement l'espace intérieur libre de l'armature et du capota
The invention more specifically aims to allow the realization of a control block of the above type which is simple and robust construction and in which the actuating electromagnets are likely to be provided at a spacing very reduced, while being able to provide maximum power:
  • The block according to the invention is mainly remarkable in that it comprises in combination an armature with a U-shaped cross section, a protective cover fixed by its open base in the armature and cut out from two parallel series of established openings. to the profile of the poles of the electromagnets, a plurality of cores in a number equal to that of the openings in each series, windings advantageously mounted alternately on one or the other of the branches of the cores and whose support with lateral cheeks door against the inner face of the cover and against the bottom of the envisaged core, a positioning plate which closes the base of this cover and which has a row of windows for centering bosses provided on the cores, a printed circuit associated with a cable supply and held against the inner face of the positioning plate, and a coating mass of synthetic resin, injected so as to completely fill the free interior space of the frame and capota

L'armature, préférablement réalisée en aluminium afin de comporter une grande rigidité tout en assurant une bonne conduction thermique pour l'évacuation de la chaleur, est profilée le long des ailes de son profil transversal en forme de U pour que le capot, pourvu de bossages longitudinaux, puisse se fixer à ladite armature par simple encliquetage.'The frame, preferably made of aluminum in order to have great rigidity while ensuring good thermal conduction for the evacuation of heat, is profiled along the wings of its U-shaped transverse profile so that the cover, provided with longitudinal bosses, can be fixed to said frame by simple snap-fastening. '

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer

  • Fig.1 1 est une vue en plan partielle montrant un bloc de commande à électro-aimants établi conformément à l'invention.
  • Fig. 2 en est une coupe transversale schématique suivant le plan indiqué en II-II en fig.1.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing.
  • Fig. 1 1 is a partial plan view showing an electromagnet control block established in accordance with the invention.
  • Fig. 2 is a schematic cross-section along the plane indicated in II-II in fig.1.

Sur ce dessin la référence 1 désigne une armature métallique, en aluminium ou en alliage d'aluminium coulé, dont la longueur est égale à celle du bloc de commande à réaliser et dépend donc du nombre d'électro-aimants de celui-ci Comme montré en fig.' 2 cette armature 1 présente en section transversale un profil en forme de U, la face intérieure de chaque branche étant creusée d'une dépression longitudinale la.' Les bords transversaux du fond de l'armature 1 sont agencés pour permettre la fixation aisée de l'ensemble du bloc de commande ; dans l'exemple de réalisation envisagé on a supposé que ces bords étaient percés de trous Ib pour le passage de vis ou boulons. Il convient encore d'observer que l'armature 1 est pourvue de nervures de renfort qui améliorent sa rigidité et qui déterminent des canaux d'aération facilitant l'évacuation de la chaleur dans l'air ambiant.In this drawing, the reference 1 designates a metal frame, of aluminum or of cast aluminum alloy, the length of which is equal to that of the control block to be produced and therefore depends on the number of electromagnets thereof. As shown in fig. ' 2 this frame 1 has a U-shaped profile in cross section, the inner face of each branch being hollowed out with a longitudinal depression la. ' The transverse edges of the bottom of the frame 1 are arranged to allow easy attachment of the entire control unit; in the exemplary embodiment envisaged, it has been assumed that these edges were pierced with holes Ib for the passage of screws or bolts. It should also be observed that the frame 1 is provided with reinforcing ribs which improve its rigidity and which determine ventilation channels facilitating the evacuation of the heat in the ambient air.

Dans l'armature 1 est engagée la base ouverte d'un capot 2, également réalisé en aluminium ou en alliage léger à base d'aluminum.' Chacune des parois latérales de ce capot 2 présente un bossage extérieur 2a qui s'étend longitudinalement pour venir s'encliqueter, moyennant déformation élastique momentanée, à l'intérieur de la dépression correspondante la de l'armature 1.' Par ailleurs le fond du capot 1 est découpé de deux rangées parallèles d'ouvertures 2b, établies à un profil rectangulaire aplati orienté transversalement par rapport à l'axe du capot ; dans chaque paire d'ouvertures 2b alignées transversalement sont introduites les extrémités, formant pôles 3a, des deux branches d'un noyau 3 en fer doux, à profil usuel en forme de U.'In the frame 1 is engaged the open base of a cover 2, also made of aluminum or a light alloy based on aluminum. ' Each of the side walls of this cover 2 has an external boss 2a which extends longitudinally to snap into place, by means of momentary elastic deformation, inside the corresponding depression 1a of the frame 1. ' Furthermore, the bottom of the cover 1 is cut out. of two parallel rows of openings 2b, established with a flattened rectangular profile oriented transversely with respect to the axis of the cover; into each pair of transversely aligned openings 2b are introduced the ends, forming poles 3a, of the two branches of a soft iron core 3, with the usual U-shaped profile. '

Sur l'une des branches de chaque noyau 3 est engagé le support tubulaire 4 d'un bobinage 5 ; les joues latérales de ce support 4 prennent appui contre le fond du noyau 3 et contre la face interne du capot 2 en s'opposant ainsi au déplacement dudit noyau vers l'extérieur, tandis que son déplacement vers l'intérieur est limité par portée contre une plaque de positionnement 6.' Cette dernière est fixée contre les bords du capot 2 et elle s'étend sur toute la longueur de la base de celui-ci ; on notera que cette plaque 6 est découpée d'une série de fenêtres centrales 6a à profil rectangulaire allongé transversalement, dans chacune desquelles vient se loger un bossage 3b ménagé sur chacun des noyaux 3.'On one of the branches of each core 3 is engaged the tubular support 4 of a coil 5; the lateral cheeks of this support 4 bear against the bottom of the core 3 and against the internal face of the cover 2, thus opposing the movement of said core towards the outside, while its movement towards the inside is limited by bearing against a positioning plate 6. ' The latter is fixed against the edges of the cover 2 and it extends over the entire length of the base thereof; it will be noted that this plate 6 is cut out from a series of central windows 6a with a rectangular profile elongated transversely, in each of which is housed a boss 3b formed on each of the cores 3. '

On remarquera qu'afin de limiter au strict minimum l'écartement réciproque des noyaux 3 en dépit de la surépaisseur formée par les bobinages 5, ceux-ci et leurs supports 4 sont disposés de manière alternée sur les noyaux, comme le fait bien apparaître le tracé interrompu de fig. 1.' Chaque bobinage 5 est relié par des branchements 7 à un circuit imprimé 8 appliqué contre la face inférieure de la plaque de positionnement 6 ; ce circuit 8 est lui-même relié électriquement à un câble commun d'alimentation 9 logé entre ledit circuit et le fond de l'armature 1.' La fixation du circuit imprimé 8 contre la plaque 6 et de cette dernière contre la base ouverte du capot 2 est avantageusement assurée par les broches 7 dont les extrémités dépassantes sont soudées contre le circuit précité après traversée de celui-ci et de la plaque.' En tout état de cause une fois les différents éléments du bloc introduits et montés dans la carcasse constituée par l'armature 1 et le capot 2, l'espace intérieur libre de ladite carcasse est rempli d'une masse 10 de résine synthétique injectée à travers des ouvertures appropriées, ladite masse 10 comblant intégralement tous les vides laissés entre les noyaux 3, les bobinages 5, la plaque 6, le câble 9, etc...It will be noted that in order to limit the reciprocal spacing of the cores 3 to the strict minimum despite the extra thickness formed by the coils 5, these and their supports 4 are arranged alternately on the cores, as can be seen from the broken line in fig. 1. ' Each coil 5 is connected by connections 7 to a printed circuit 8 applied against the underside of the positioning plate 6; this circuit 8 is itself electrically connected to a common power cable 9 housed between said circuit and the bottom of the frame 1. ' The fixing of the printed circuit 8 against the plate 6 and of the latter against the open base of the cover 2 is advantageously ensured by the pins 7, the protruding ends of which are welded against the aforementioned circuit after crossing it and the plate. ' In any event, once the various elements of the block have been introduced and mounted in the carcass constituted by the frame 1 and the cover 2, the free interior space of said carcass is filled with a mass 10 of resin synthetic injected through appropriate openings, said mass 10 filling all the voids left between the cores 3, the coils 5, the plate 6, the cable 9, etc.

On obtient donc finalement un bloc compact, présentant une rigidité parfaite tout en étant susceptible d'évacuer de manière particulièrement efficace la chaleur dégagée à la suite d'un fonctionnement intensif des bobinages 5.1 Avant l'injection de la masse de matière d'enrobage 10 les éléments constitutifs sont positionnés de manière précise, de telle sorte que l'opération de remplissage ne peut perturber la construction.' On notera que l'invention permet de réaliser une unité d'électro-aimants monoblocs, indépendants et étanches, reliés à un tableau de contrôle électronique par un câble unique, si bien qu'en cas de panne il suffit de déconnecter ce câble et de sortir le dispositif pour le remplacera La maintenance du matériel est ainsi considérablement simplifiée.A compact block is therefore finally obtained, having perfect rigidity while being capable of dissipating in a particularly effective manner the heat released following an intensive operation of the windings 5. 1 Before the injection of the mass of material coating 10 the constituent elements are positioned precisely, so that the filling operation cannot disturb the construction. It will be noted that the invention makes it possible to produce a unit of monobloc, independent and waterproof electromagnets, connected to an electronic control panel by a single cable, so that in the event of a breakdown, it suffices to disconnect this cable and remove the device to replace it Maintenance of the equipment is thus considerably simplified.

Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents.' Il va de soi que le nombre des électro-aimants peut être quelconque.It should moreover be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents. ' It goes without saying that the number of electromagnets can be arbitrary.

Claims (3)

1.1 Bloc de commande à électro-aimants, notamment pour l'actionnement des organes mobiles d'une ratière pour machine à tisser, caractérisé en ce qu'il comprend en combinaison une armature à section transversale en forme de U, un capot de protection fixé par sa base ouverte dans l'armature et découpé de deux séries parallèles d'ouvertures établies au profil des pôles des électro-aimants, une pluralité de noyaux en nombre égal à celui des ouvertures de chaque série, des bobinages dont le support à joues latérales, engagé sur l'une des branches de chaque noyau, porte contre le fond de celui-ci et contre la face intérieure du capot, une plaque de positionnement qui ferme la base de ce dernier et qui présente une rangée de fenêtres pour le centrage de bossages prévus sur les noyaux , un circuit imprimé associé à un câble d'alimentation et maintenu contre la face intérieure de la plaque de positionnement, et une masse d'enrobage en résine synthétique, injectée de manière à remplir intégralement l'espace intérieur libre de l'armature et du capot.1. 1 control block with electromagnets, in particular for the actuation of the movable members of a dobby for a weaving machine, characterized in that it comprises in combination an armature with a U-shaped cross section, a cover protection fixed by its open base in the frame and cut from two parallel series of openings established in the profile of the poles of the electromagnets, a plurality of cores in number equal to that of the openings of each series, of the windings whose support side cheeks, engaged on one of the branches of each core, carries against the bottom of the latter and against the inner face of the hood, a positioning plate which closes the base of the latter and which has a row of windows for the centering of bosses provided on the cores, a printed circuit associated with a power cable and held against the inner face of the positioning plate, and a coating mass of synthetic resin, injected so as to completely fill the free interior space of the frame and the cover. 2.1 Bloc de commande suivant la revendication 1, caractérisé en que les supports à joues et les bobinages sont disposés de manière alternée sur l'une ou l'autre des deux branches des noyaux afin de réduire l'écartement de ceux-ci.2. 1 control unit according to claim 1, characterized in that the cheek supports and the coils are arranged alternately on one or the other of the two branches of the cores in order to reduce the spacing thereof. 3.1 Bloc de commande suivant l'une ou l'autre des revendications 1 et 2, caractérisé en ce que les ailes intérieures de l'armature et les parois latérales du capot sont profilées pour que ce dernier soit fixé en place par encliquetage élastique.'3. 1 control unit according to either of claims 1 and 2, characterized in that the inner wings of the frame and the side walls of the cover are profiled so that the latter is fixed in place by elastic snap-fastening . '
EP81420065A 1980-05-06 1981-05-04 Electromagnetic control block for actuating the shedding mechanisms for looms Withdrawn EP0039651A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8010548 1980-05-06
FR8010548A FR2482359A1 (en) 1980-05-06 1980-05-06 ELECTRO-MAGNET CONTROL BLOCK, IN PARTICULAR FOR THE ACTUATION OF RAIN FOR WEAVING MACHINES

Publications (1)

Publication Number Publication Date
EP0039651A1 true EP0039651A1 (en) 1981-11-11

Family

ID=9241843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81420065A Withdrawn EP0039651A1 (en) 1980-05-06 1981-05-04 Electromagnetic control block for actuating the shedding mechanisms for looms

Country Status (4)

Country Link
US (1) US4377799A (en)
EP (1) EP0039651A1 (en)
JP (1) JPS6236872Y2 (en)
FR (1) FR2482359A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777875A (en) * 1984-03-30 1988-10-18 Nec Home Electronics Ltd. Printer head bank and method of manufacturing the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3479643D1 (en) * 1984-09-10 1989-10-12 Ibm Deutschland Print hammer bank of modular construction
JPS61197861A (en) * 1985-02-27 1986-09-02 Diesel Kiki Co Ltd Electromagnetic actuator and manufacture thereof
IT1265200B1 (en) * 1993-11-19 1996-10-31 Nuovo Pignone Spa PERFECTED SYSTEM OF ELECTROMAGNETS-PICKING RODS FOR THE DEVICE OF A ROTARY RACK

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327264A (en) * 1965-04-23 1967-06-20 Keith S Rodaway Alternating current solenoid construction
FR1557034A (en) * 1967-01-28 1969-02-14
DE1295690B (en) * 1963-06-07 1969-05-22 Eks Elektromagnetik Dr Kniel & Electromagnet housing
DE2018167A1 (en) * 1970-04-16 1971-11-04 Harting Elektro W Magnetic block with several holding magnets

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763448A (en) * 1971-04-02 1973-10-02 J Walters Electromagnetic relays

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1295690B (en) * 1963-06-07 1969-05-22 Eks Elektromagnetik Dr Kniel & Electromagnet housing
US3327264A (en) * 1965-04-23 1967-06-20 Keith S Rodaway Alternating current solenoid construction
FR1557034A (en) * 1967-01-28 1969-02-14
DE2018167A1 (en) * 1970-04-16 1971-11-04 Harting Elektro W Magnetic block with several holding magnets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777875A (en) * 1984-03-30 1988-10-18 Nec Home Electronics Ltd. Printer head bank and method of manufacturing the same

Also Published As

Publication number Publication date
FR2482359A1 (en) 1981-11-13
FR2482359B3 (en) 1982-06-25
JPS56165079U (en) 1981-12-07
US4377799A (en) 1983-03-22
JPS6236872Y2 (en) 1987-09-19

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