EP3585536B1 - Device for installing an injection piston in or removing same from a moulding machine - Google Patents

Device for installing an injection piston in or removing same from a moulding machine Download PDF

Info

Publication number
EP3585536B1
EP3585536B1 EP18704273.4A EP18704273A EP3585536B1 EP 3585536 B1 EP3585536 B1 EP 3585536B1 EP 18704273 A EP18704273 A EP 18704273A EP 3585536 B1 EP3585536 B1 EP 3585536B1
Authority
EP
European Patent Office
Prior art keywords
piston
injection piston
injection
machine
face
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.)
Active
Application number
EP18704273.4A
Other languages
German (de)
French (fr)
Other versions
EP3585536A1 (en
Inventor
Bruno BARZASI
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.)
PSA Automobiles SA
Original Assignee
PSA Automobiles SA
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 PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3585536A1 publication Critical patent/EP3585536A1/en
Application granted granted Critical
Publication of EP3585536B1 publication Critical patent/EP3585536B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration

Definitions

  • the invention relates to a device for placing or removing an injection piston in or out of a molding machine, respectively.
  • the patent FR-A-2 424 777 describes an installation for the manufacture of foundry cores which comprises an injection plunger.
  • the actuator of the injection and displacement mechanisms of the metering chamber is a double-stroke cylinder comprising an internal rod rigidly linked to the injection plunger piston.
  • a device for adjusting the position of the injection plunger is mounted on the inner rod.
  • a device for adjusting the position of this chamber In the upper flange of the actuator of the injection and displacement mechanisms of the metering chamber is incorporated a device for adjusting the position of this chamber, the upper part thereof comprising an opening for access to the metering chamber. device for adjusting the position of the injection plunger.
  • This document essentially shows the characteristics of a positioning of a plunger in a foundry machine but gives no information as to the installation or removal of the plunger.
  • an injection piston removable from the machine and which must be removed from the machine for reasons of maintenance or replacement.
  • Such an injection piston may have a weight of about 250 kg and as access to such a molding machine is often limited, a problem arises when fitting or removing this injection piston in or out of the machine. to be molded.
  • the injection piston extends substantially horizontally and has a non-negligible length. There are therefore difficulties in pulling it during its extraction, which should preferably be done along the longitudinal axis of the piston, the molding machine having an opening corresponding substantially to the dimensions of the injection piston.
  • the overhead crane should be replaced by another device for installing or removing the injection piston in the molding machine.
  • the document DE-A1-10 2005 048717 discloses an injection piston for the casting of metals under pressure, which despite the piston having a large size, can be easily replaced and this by forming a multi-piece piston which can be easily disassembled during its replacement.
  • the solution cannot be applied to solve our problem of replacing the injection piston because such a piston is necessarily made in a single piece.
  • the problem underlying the invention is to design a device for placing or removing an injection piston in a molding machine which can make it possible to place or extract the piston in or from the injection machine. 'a simple way without risk of damaging the injection piston.
  • a device for installing or removing an injection piston respectively in or out of a molding machine characterized in that the device comprises a lifting table supporting a system of injection molding. 'hooking up of one end of the injection piston, the hooking system being mounted on a movable carriage in translation on the lifting table in two opposite directions, the movable carriage having drive means cooperating with drive means complementary carried by the lifting table, the mobile carriage driving means being effective by action of an operator on the actuating means of said driving means.
  • the technical effect is to obtain one or removal of the injection piston by a device exerting a thrust or a traction along the longitudinal axis of the injection piston.
  • the drive means of the carriage are in the form of a toothed pinion meshing with a rack as complementary drive means carried by the lifting table, the actuating means being under the in the form of a first flywheel actuating a rotation of the toothed pinion, a reduction member being operational between the first flywheel and the toothed pinion.
  • the reducer with a ratio of 1/10 allows to reduce the pushing and pulling force. When the piston is put in place, the force is therefore reduced by 10 times.
  • the reduction gear transmits the force to the rack, via the toothed pinion, which moves the carriage forward or backward and the hooking system on which the piston is attached.
  • the lifting table comprises a work surface carrying the complementary drive means, the carriage being movable along a length of the work surface.
  • a worktop is less expensive and easier to manufacture than a lifting table.
  • the lifting table is a table of adjustable height with, on each of two opposite sides of the table, two articulated arms crossing at least once in X and bringing together an upper portion and a lower portion of the lifting table, a jack maneuvering associated with the articulated arms bringing the upper portion closer to or away from the lower portion, the lower portion of the height-adjustable table being supported by a frame mounted on casters, an actuation of the operating cylinder being effected by the action of an operator on a lever.
  • the carriage is in the form of a square with two branches inclined with respect to one another, a first branch of the square extending parallel to the lifting table carrying the drive means and the means. actuator and a second branch of the bracket carrying, towards a free end opposite the first branch, the hooking system comprising a hooking member of the injection piston provided with a body in which is inserted a tail of a lifting ring delimiting an internal opening receiving a fastening means suitable for fitting into the injection piston, the tail of the lifting ring being locked in position in the body by means of locking in position of the tail of the lifting ring.
  • the invention also relates to an assembly of an injection piston and such a device, in which one end of the piston facing the device has a threaded recess in which is inserted a fastening means secured to the device. the attachment system of the device.
  • the device comprises at least two guide supports, inclined towards each other and arranged symmetrically with respect to a longitudinal axis of the injection piston, the guide supports having free ends pointing towards the injection piston with means for adjusting a spacing between the two guide supports so that the free ends of the guide supports abut a respective portion of the outer periphery of the piston.
  • the injection piston could be cantilevered on the carriage, since the latter is then located. remote from the molding machine.
  • the guide supports carry the end portion of the injection piston that is furthest from the carriage and therefore prevent the injection piston from tilting downward through this end portion.
  • the piston is of elongated shape and has at an end opposite the end secured to the attachment system of the device a removable guide cone pointing in a direction opposite to the device.
  • the invention also relates to a molding machine housing an injection piston which has been part of such an assembly, the device having been detached from the injection piston and the end of the injection piston having the threaded recess flush with the injection piston.
  • a first face of the machine via an inlet opening made in this face, characterized in that the guide cone projects outside the injection machine through an outlet opening on a second face of the opposite machine on the first side.
  • the present invention relates to a device 1 for fitting or removing an injection piston 2 respectively in or out of a molding machine 3.
  • the name of molding machine 3 is to be taken in its broad sense and includes all machine 3 with an injection piston 2 passing therethrough, this injection piston 2 capable of weighing more than 100 kg and frequently around 250 kg.
  • the installation or removal device 1 comprises a table 4 elevator supporting a hooking system 5 of one end 2a of the injection piston 2.
  • the hooking system 5 is mounted on a carriage 6 movable in translation on the lifting table 4 in two opposite directions, this to exert a thrust to introduce the injection piston 2 into the molding machine 3 during installation or to exert traction to extract the injection piston 2 from the machine 3 during removal.
  • the push or pull is advantageously carried out along the longitudinal axis of the piston 2 to avoid blocking the movement of the piston 2 by jamming with the extraction or inlet face of the molding machine 3.
  • the mobile carriage 6 has drive means 7 cooperating with complementary drive means 8 carried by the lifting table 4.
  • the drive means 7 of the mobile carriage 6 are effective by action of an operator on the actuating means 9 of said drive means 7.
  • the drive means 7 of the carriage 6 may be in the form of a toothed pinion 7 meshing with a rack 8 as complementary drive means 8 carried by the table 4 elevator.
  • the actuating means 9 can be in the form of a first flywheel 9 actuating a rotation of the toothed pinion 7.
  • a reduction member is operational between the first flywheel 9 and the toothed pinion 7. The reduction can have a ratio of 1. out of 10.
  • the lifting table 4 can include a work surface 11 carrying the complementary drive means 8, the carriage 6 being movable in a length of the work surface 11.
  • the work surface 11 can be longer than the lifting table 4, this which represents a saving in material, a work surface 11 requiring less material than a lifting table 4 and being simpler to construct.
  • the work plan 11 can be secured at several points by means of attachment with the lifting table 4 which it covers in order to be firm in position on this lifting table.
  • a table 4 of adjustable height with, on each of two opposite sides of the table 4, two articulated arms 12 crossing at least once in X and joining an upper portion 4a and a lower portion. 4b of the lifting table 4.
  • an operating cylinder associated with the articulated arms 12 can bring the upper portion 4a closer or apart from the lower portion 4b.
  • An actuation of the operating cylinder can be carried out by action of an operator on a lever, advantageously by action of his foot on the lever.
  • the lifting table 4 of adjustable height can, by its lower portion 4b, be supported by a frame 14 mounted on casters and rolling on the ground.
  • the lifting table 4 can be an X-shaped table 4 having a hydraulic cylinder and supporting a load of 500 kg.
  • Such lifting tables 4 are available in workshops and do not require any specific criteria for the support of the piston 2 apart from their lifting capacities and carrying relatively heavy loads of more than 250 kg.
  • a table 4 in X is particularly clearly visible at figures 1 to 3 and 7 and partly to the figure 2 .
  • the carriage 6 can be in the form of a square with two branches 6a, 6b inclined with respect to one another, advantageously at 90 °.
  • a first branch 6a of the square, substantially horizontal can extend parallel to the lifting table 4 by resting on the lifting table 4 or on the work surface 11 by carrying the drive means 7 and the means of actuation 9.
  • a second branch 6b of the square can carry, towards a free end opposite to its junction with the first branch 6a, the hooking system 5.
  • Support spacers 13 can be provided between the two branches 6a and 6b to join them together and thus strengthen the carriage 6.
  • the hooking system 5 can include a hooking member of the injection piston 2 provided with a body 15 in which is inserted a tail of a lifting ring 16.
  • the lifting ring 16 can have a head delimiting in its interior an internal opening intended to be applied against a longitudinal end 2a of the injection piston 2. Through this internal opening of the lifting ring 16 passes a fastening means capable of being inserted into the injection piston 2.
  • the tail of the lifting ring 16 can be locked in position in the body 15 by a locking means 17 in position, advantageously a pin 17 passing through the body 15 and the tail of the lifting ring 16.
  • the present invention also relates to an assembly of an injection piston 2 and of a device 1 as described above.
  • one end 2a of the piston 2 facing the device 1 may have a threaded recess 20 into which is inserted the fixing means integral with the hooking system 5 of the device 1.
  • the fixing means is then advantageously in the form of a screw or a threaded rod. This threaded recess 20 internal to the injection piston 2 is visible in dotted lines at the figure 4 .
  • the device 1 can include at least two guide supports 18.
  • These guide supports 18 can be inclined towards one another and arranged symmetrically with respect to a longitudinal axis of the injection piston 2, therefore in opposition with respect to a point along the length of the injection piston 2.
  • the guide supports 18 may be in the form of bars inclined towards the injection piston 2, having free ends 18a pointing towards the injection piston 2 and coming into contact with the periphery of the injection piston 2.
  • means 19 are provided for adjusting a spacing between the two guide supports 18 so that the free ends 18a of the guide supports 18 abut a respective portion of the outer periphery of the piston 2.
  • These adjustment means 19 may be in the form of a second adjustment wheel 19.
  • the guide supports 18 abut, after adjusting the spacing between them, by their free ends. 18a against the periphery of the injection piston 2.
  • the second flywheel 19 is used when extracting or installing the injection piston 2 to compensate for the difference in diameter that may occur on the same piston 2 or between two different pistons 2 of two different molding machines 3.
  • the guide supports keep the piston 2 horizontal while avoiding any jamming of the piston 2 with the molding machine 3 or any excessive sagging of the injection piston 2 downwards.
  • the two guide supports 18, advantageously made of steel, can move closer or further apart thanks to a system of inverted screws, forming a vice to hold the injection piston 2 between them.
  • the free ends 18a, visible in particular at the figure 2 guide supports 18 are advantageously each coated with a respective pad, advantageously with a bronze pad.
  • These bronze pads help reduce the pushing or pulling force exerted on the injection piston 2.
  • Another advantageously lubricated material can also be used.
  • These guide supports 18 are very advantageous when a large part of the injection piston 2 is located outside the machine 3, for example half or more of the injection piston 2 and especially when the entire injection piston 2 was taken out of the molding machine 3.
  • the first and second flywheels 9 and 19 can be provided with a crank to facilitate their rotation by the operator.
  • the injection piston 2 of elongated and advantageously cylindrical shape, may have at a longitudinal end 2b opposite the longitudinal end 2a secured to the attachment system 5 of the device 1 a removable guide cone 21 pointing in one direction opposed to device 1.
  • This guide cone 21 serves to ensure a progression without jamming of this opposite longitudinal end 2b and therefore of the injection piston 2 inside the molding machine 3, advantageously during a pushing of the injection piston 2 in the molding machine 3.
  • this opposite longitudinal end 2b then the front end, taking as a reference the path of the carriage 6 towards the molding machine 3, may strike elements located inside the molding machine 3.
  • the guide cone 21 assists in the progressive repositioning of the opposite end while passing through said elements forming obstacles.
  • the guide cone 21 is used during the installation of the injection piston 2 to pass the shoulder 24 of the injection cylinder of the molding machine 3.
  • the guide cone 21 may preferably be made of steel.
  • the guide cone 21 may have passages 21a open on its periphery or its tip to allow its mounting on the opposite longitudinal end 2b of the injection piston 2 which carries it.
  • a threaded pin is introduced into each passage 21 and is screwed into the injection piston 2 joining the guide cone 21 with the injection piston 2.
  • the guide cone 21 may have an auxiliary function, this when the injection piston 2 protrudes slightly from the molding machine 3 on the second opposite face 3b from the machine 3 to the first face 3a via which the injection piston 2 was introduced.
  • the present invention therefore relates to a molding machine 3 housing an injection piston 2 having been part of an assembly as described above.
  • the installation and removal device 1 has been detached from the injection piston 2.
  • the longitudinal end 2a of the injection piston 2 having the threaded recess 20 previously facing the attachment system 5 of the device 1 is then flush with a first face 3a of the machine 3 via an inlet opening 22 practiced in this face.
  • the guide cone 21 can project outside the injection machine 3 through an outlet opening 23 on the second face 3b of the machine 3 opposite to the first face 3a.
  • the present invention finally relates to a method for fitting or removing an injection piston 2 respectively in or out of a molding machine 3 by such a device 1.
  • the molding machine 3 has a first face 3a provided with an inlet opening 22 through which the injection piston 2 is to be introduced or extracted.

Description

L'invention porte sur un dispositif de pose ou dépose d'un piston d'injection respectivement dans ou hors d'une machine à mouler.The invention relates to a device for placing or removing an injection piston in or out of a molding machine, respectively.

Par exemple, le brevet FR-A-2 424 777 décrit une installation pour la fabrication de noyaux de fonderie qui comprend un piston-plongeur d'injection. L'actionneur des mécanismes d'injection et de déplacement de la chambre de dosage est un vérin à double course comportant une tige intérieure rigidement liée au piston-plongeur d'injection. Sur la tige intérieure est monté un dispositif pour le réglage de la position du piston-plongeur d'injection. Dans le flasque supérieur de l'actionneur des mécanismes d'injection et de déplacement de la chambre de dosage est incorporé un dispositif pour le réglage de la position de cette chambre, la partie supérieure de celle-ci comportant une ouverture pour l'accès au dispositif de réglage de la position du piston-plongeur d'injection.For example, the patent FR-A-2 424 777 describes an installation for the manufacture of foundry cores which comprises an injection plunger. The actuator of the injection and displacement mechanisms of the metering chamber is a double-stroke cylinder comprising an internal rod rigidly linked to the injection plunger piston. A device for adjusting the position of the injection plunger is mounted on the inner rod. In the upper flange of the actuator of the injection and displacement mechanisms of the metering chamber is incorporated a device for adjusting the position of this chamber, the upper part thereof comprising an opening for access to the metering chamber. device for adjusting the position of the injection plunger.

Ce document montre essentiellement les caractéristiques d'un positionnement d'un piston plongeur dans une machine de fonderie mais ne donne aucun renseignement quant à la pose ou la dépose du piston plongeur.This document essentially shows the characteristics of a positioning of a plunger in a foundry machine but gives no information as to the installation or removal of the plunger.

Or, dans une machine à mouler, il est connu d'utiliser un piston d'injection amovible de la machine et qui doit être retiré de la machine pour des raisons d'entretien ou de remplacement. Un tel piston d'injection peut présenter un poids d'environ 250kg et comme l'accès à une telle machine à mouler est souvent limité il survient un problème lors de pose ou la dépose de ce piston d'injection dans ou hors de la machine à mouler.However, in a molding machine, it is known to use an injection piston removable from the machine and which must be removed from the machine for reasons of maintenance or replacement. Such an injection piston may have a weight of about 250 kg and as access to such a molding machine is often limited, a problem arises when fitting or removing this injection piston in or out of the machine. to be molded.

Il est ainsi souvent utilisé un transport par pont roulant pour le piston d'injection. Le piston d'injection s'étend sensiblement horizontalement et présente une longueur non négligeable. Il y a donc des difficultés à le tirer lors de son extraction qui doit se faire préférentiellement selon l'axe longitudinal du piston, la machine à mouler présentant une ouverture correspondant sensiblement aux dimensions du piston d'injection.It is thus often used a transport by overhead crane for the injection piston. The injection piston extends substantially horizontally and has a non-negligible length. There are therefore difficulties in pulling it during its extraction, which should preferably be done along the longitudinal axis of the piston, the molding machine having an opening corresponding substantially to the dimensions of the injection piston.

Ceci peut générer des blocages quand le piston d'injection est tiré ou poussé avec une force non confondue avec son axe longitudinal ou nécessiter de multiples manœuvres. Dans le cas d'un pont roulant, le pont roulant ne peut pas exercer une force de traction sensiblement horizontale sur le piston d'injection lors de sa dépose ou une force de poussée sensiblement horizontale sur le piston d'injection lors de sa pose.This can generate blockages when the injection piston is pulled or pushed with a force not confused with its longitudinal axis or require multiple maneuvers. In the case of an overhead crane, the overhead crane cannot exert a force substantially horizontal traction on the injection piston during its removal or a substantially horizontal thrust force on the injection piston during its installation.

Il conviendrait de remplacer le pont roulant par un autre dispositif de pose ou dépose du piston d'injection dans la machine à mouler.The overhead crane should be replaced by another device for installing or removing the injection piston in the molding machine.

Le document DE-A1-10 2005 048717 divulgue un piston d'injection pour la coulée des métaux sous pression, qui malgré que le piston présente une taille importante, peut être facilement remplacé et cela en formant un piston multi-pièces qui peut être démonté facilement lors de son remplacement. La solution ne peut être appliqué pour résoudre notre problème de remplacement du piston d'injection car un tel piston est forcément réalisé en une pièce unique.The document DE-A1-10 2005 048717 discloses an injection piston for the casting of metals under pressure, which despite the piston having a large size, can be easily replaced and this by forming a multi-piece piston which can be easily disassembled during its replacement. The solution cannot be applied to solve our problem of replacing the injection piston because such a piston is necessarily made in a single piece.

Par conséquent, le problème à la base de l'invention est de concevoir un dispositif de pose ou dépose d'un piston d'injection dans une machine à mouler qui puisse permettre de placer ou d'extraire le piston dans ou de la machine d'une manière simple sans risque d'endommagement du piston d'injection.Consequently, the problem underlying the invention is to design a device for placing or removing an injection piston in a molding machine which can make it possible to place or extract the piston in or from the injection machine. 'a simple way without risk of damaging the injection piston.

Pour atteindre cet objectif, il est prévu selon l'invention un dispositif de pose ou dépose d'un piston d'injection respectivement dans ou hors d'une machine à mouler, caractérisé en ce que le dispositif comprend une table élévatrice supportant un système d'accrochage d'une extrémité du piston d'injection, le système d'accrochage étant monté sur un chariot mobile en translation sur la table élévatrice dans deux directions opposées, le chariot mobile présentant des moyens d'entraînement coopérant avec des moyens d'entraînement complémentaires portés par la table élévatrice, les moyens d'entraînement du chariot mobile étant effectifs par action d'un opérateur sur des moyens d'actionnement desdits moyens d'entraînement.To achieve this objective, there is provided according to the invention a device for installing or removing an injection piston respectively in or out of a molding machine, characterized in that the device comprises a lifting table supporting a system of injection molding. 'hooking up of one end of the injection piston, the hooking system being mounted on a movable carriage in translation on the lifting table in two opposite directions, the movable carriage having drive means cooperating with drive means complementary carried by the lifting table, the mobile carriage driving means being effective by action of an operator on the actuating means of said driving means.

L'effet technique est d'obtenir une ou dépose du piston d'injection par un dispositif exerçant une poussée ou une traction selon l'axe longitudinal du piston d'injection. Le risque de coincement du piston dans la machine et même de déformation du piston d'injection. La pose et la dépose se font donc sans demander un effort supplémentaire dû à une force de traction ou de poussée non alignée avec le piston d'injection.The technical effect is to obtain one or removal of the injection piston by a device exerting a thrust or a traction along the longitudinal axis of the injection piston. The risk of the piston jamming in the machine and even of deformation of the injection piston. Installation and removal are therefore done without requiring additional effort due to a pulling or pushing force not aligned with the injection piston.

Avantageusement, les moyens d'entraînement du chariot sont sous la forme d'un pignon denté engrenant dans une crémaillère en tant que moyens d'entraînement complémentaires portés par la table élévatrice, les moyens d'actionnement étant sous la forme d'un premier volant actionnant une rotation du pignon denté, un organe de réduction étant opérationnel entre le premier volant et le pignon denté.Advantageously, the drive means of the carriage are in the form of a toothed pinion meshing with a rack as complementary drive means carried by the lifting table, the actuating means being under the in the form of a first flywheel actuating a rotation of the toothed pinion, a reduction member being operational between the first flywheel and the toothed pinion.

Le réducteur avec un rapport de 1/10 permet de réduire l'effort de poussée et de traction. Au moment de la mise en place du piston, l'effort est donc réduit de 10 fois. Lors d'une action d'un opérateur sur le premier volant, le réducteur transmet l'effort sur la crémaillère, via le pignon denté, ce qui fait avancer ou reculer le chariot et le système d'accrochage sur lequel est attaché le piston.The reducer with a ratio of 1/10 allows to reduce the pushing and pulling force. When the piston is put in place, the force is therefore reduced by 10 times. When an operator acts on the first flywheel, the reduction gear transmits the force to the rack, via the toothed pinion, which moves the carriage forward or backward and the hooking system on which the piston is attached.

Avantageusement, la table élévatrice comprend un plan de travail portant les moyens d'entraînement complémentaires, le chariot étant mobile dans une longueur du plan de travail. Un plan de travail est moins coûteux et de fabrication plus simple qu'une table élévatrice.Advantageously, the lifting table comprises a work surface carrying the complementary drive means, the carriage being movable along a length of the work surface. A worktop is less expensive and easier to manufacture than a lifting table.

Avantageusement, la table élévatrice est une table de hauteur réglable avec, sur chacun de deux côtés opposés de la table, deux bras articulés se croisant au moins une fois en X et réunissant une portion supérieure et une portion inférieure de la table élévatrice, un vérin de manœuvre associé aux bras articulés rapprochant ou écartant la portion supérieure de la portion inférieure, la portion inférieure de la table de hauteur réglable étant supportée par un cadre monté sur roulettes, un actionnement du vérin de manœuvre étant effectué par action d'un opérateur sur un levier.Advantageously, the lifting table is a table of adjustable height with, on each of two opposite sides of the table, two articulated arms crossing at least once in X and bringing together an upper portion and a lower portion of the lifting table, a jack maneuvering associated with the articulated arms bringing the upper portion closer to or away from the lower portion, the lower portion of the height-adjustable table being supported by a frame mounted on casters, an actuation of the operating cylinder being effected by the action of an operator on a lever.

Toutes les machines à mouler ne portent pas leur piston injecteur au même niveau, d'où la nécessité de prévoir un réglage en hauteur de la table élévatrice. De même quand le piston d'injection est complètement retiré de la machine à mouler et transporté dans un autre atelier, il n'est pas nécessaire que ce piston d'injection soit maintenu précisément à la hauteur qu'il occupait dans la machine à mouler.Not all molding machines have their injector piston at the same level, hence the need to provide height adjustment of the lifting table. Likewise, when the injection piston is completely withdrawn from the molding machine and transported to another workshop, it is not necessary for this injection piston to be kept precisely at the height it occupied in the molding machine. .

Avantageusement, le chariot est sous forme d'une équerre avec deux branches inclinées l'une par rapport à l'autre, une première branche de l'équerre s'étendant parallèlement à la table élévatrice en portant les moyens d'entraînement et les moyens d'actionnement et une deuxième branche de l'équerre portant, vers une extrémité libre opposée à la première branche, le système d'accrochage comportant un organe d'accrochage du piston d'injection muni d'un corps dans lequel s'insère une queue d'un anneau de levage délimitant une ouverture interne recevant un moyen de fixation apte à s'insérer dans le piston d'injection, la queue de l'anneau de levage étant bloquée en position dans le corps par un moyen de blocage en position de la queue de l'anneau de levage.Advantageously, the carriage is in the form of a square with two branches inclined with respect to one another, a first branch of the square extending parallel to the lifting table carrying the drive means and the means. actuator and a second branch of the bracket carrying, towards a free end opposite the first branch, the hooking system comprising a hooking member of the injection piston provided with a body in which is inserted a tail of a lifting ring delimiting an internal opening receiving a fastening means suitable for fitting into the injection piston, the tail of the lifting ring being locked in position in the body by means of locking in position of the tail of the lifting ring.

L'invention concerne aussi un ensemble d'un piston d'injection et d'un tel dispositif, dans lequel une extrémité du piston en vis-à-vis du dispositif présente un évidement fileté dans lequel s'insère un moyen de fixation solidarisé avec le système d'accrochage du dispositif.The invention also relates to an assembly of an injection piston and such a device, in which one end of the piston facing the device has a threaded recess in which is inserted a fastening means secured to the device. the attachment system of the device.

Avantageusement, le dispositif comporte au moins deux supports guides, inclinés l'un vers l'autre et disposés symétriquement par rapport à un axe longitudinal du piston d'injection, les supports guides présentant des extrémités libres pointant vers le piston d'injection avec des moyens de réglage d'un espacement entre les deux supports guides afin que les extrémités libres des supports guides abutent une portion respective de la périphérie externe du piston.Advantageously, the device comprises at least two guide supports, inclined towards each other and arranged symmetrically with respect to a longitudinal axis of the injection piston, the guide supports having free ends pointing towards the injection piston with means for adjusting a spacing between the two guide supports so that the free ends of the guide supports abut a respective portion of the outer periphery of the piston.

Quand une grande partie du piston d'injection ou que tout le piston d'injection est extrait hors de la machine à mouler, le piston d'injection pourrait être en porte à faux sur le chariot, étant donné que celui-ci se trouve alors à distance de la machine à mouler. Pour éviter cela, les supports guides portent la portion d'extrémité du piston d'injection la plus éloignée du chariot et donc évite que le piston d'injection ne penche vers le bas par cette portion d'extrémité.When a large part of the injection piston or the entire injection piston is pulled out of the molding machine, the injection piston could be cantilevered on the carriage, since the latter is then located. remote from the molding machine. To avoid this, the guide supports carry the end portion of the injection piston that is furthest from the carriage and therefore prevent the injection piston from tilting downward through this end portion.

Avantageusement, le piston est de forme allongée et présente à une extrémité opposée à l'extrémité solidarisée avec le système d'accrochage du dispositif un cône de guidage amovible pointant dans une direction opposée au dispositif.Advantageously, the piston is of elongated shape and has at an end opposite the end secured to the attachment system of the device a removable guide cone pointing in a direction opposite to the device.

L'invention concerne aussi une machine à mouler logeant un piston d'injection ayant fait partie d'un tel ensemble, le dispositif ayant été détaché du piston d'injection et l'extrémité du piston d'injection présentant l'évidement fileté affleurant sur une première face de la machine par une ouverture d'entrée pratiquée dans cette face, caractérisée en ce que le cône de guidage fait saillie à l'extérieur de la machine d'injection par une ouverture de sortie sur une deuxième face de la machine opposée à la première face.The invention also relates to a molding machine housing an injection piston which has been part of such an assembly, the device having been detached from the injection piston and the end of the injection piston having the threaded recess flush with the injection piston. a first face of the machine via an inlet opening made in this face, characterized in that the guide cone projects outside the injection machine through an outlet opening on a second face of the opposite machine on the first side.

L'invention concerne aussi un procédé de pose ou dépose d'un piston d'injection respectivement dans ou hors d'une machine à mouler par un tel dispositif, la machine à mouler présentant une première face munie d'une ouverture d'entrée par laquelle le piston d'injection est à introduire ou à extraire, caractérisé en ce qu'il comprend les étapes suivantes pour une pose :

  • positionnement du dispositif vis-à-vis de la première face de la machine présentant l'ouverture d'entrée, le piston d'injection reposant sur une table élévatrice et ayant été solidarisé avec un système d'accrochage monté sur un chariot mobile en translation sur la table élévatrice,
  • réglage d'une hauteur de la table élévatrice afin que le système d'accrochage et le piston qu'il supporte soit en face de l'ouverture d'entrée de la machine,
  • avancée du chariot mobile du système d'accrochage supportant le piston vers la première face et introduction du piston dans la machine à mouler par action de l'opérateur jusqu'à ce que l'extrémité du piston d'injection solidarisée au système d'accrochage affleure de l'ouverture d'entrée, le piston d'injection étant guidé par appui sur son profil extérieur pendant cette avancée,
  • désolidarisation du piston d'injection avec le dispositif,
ou en ce qu'il comprend les étapes suivantes pour une dépose :
  • positionnement du dispositif vis-à-vis de la première face de la machine présentant l'ouverture d'entrée, le piston d'injection étant alors inséré dans la machine à mouler avec une extrémité du piston affleurant de la première face,
  • réglage d'une hauteur de la table élévatrice afin que le système d'accrochage du dispositif soit en face de l'ouverture d'entrée,
  • solidarisation du système d'accrochage avec l'extrémité affleurant du piston et extraction du piston de la machine à mouler par action de l'opérateur jusqu'à ce que tout le piston d'injection soit retiré de la machine, le piston d'injection étant guidé par appui sur son profil extérieur pendant cette extraction,
  • déplacement du dispositif et du piston d'injection toujours solidarisé au système d'accrochage.
The invention also relates to a method for placing or removing an injection piston respectively in or out of a molding machine by such a device, the molding machine having a first face provided with an inlet opening through in which the injection piston is to be inserted or extracted, characterized in that it comprises the following steps for installation:
  • positioning of the device vis-à-vis the first face of the machine having the inlet opening, the injection piston resting on a lifting table and having been secured to a hooking system mounted on a movable trolley in translation on the lifting table,
  • adjustment of a height of the lifting table so that the hooking system and the piston it supports are in front of the inlet opening of the machine,
  • advancement of the mobile carriage of the attachment system supporting the piston towards the first face and introduction of the piston into the molding machine by action of the operator until the end of the injection piston secured to the attachment system flush with the inlet opening, the injection piston being guided by pressing on its outer profile during this advance,
  • separation of the injection piston from the device,
or in that it comprises the following steps for a removal:
  • positioning of the device vis-à-vis the first face of the machine having the inlet opening, the injection piston then being inserted into the molding machine with one end of the piston flush with the first face,
  • adjustment of a height of the lifting table so that the hooking system of the device is in front of the inlet opening,
  • securing of the hooking system with the flush end of the piston and extraction of the piston from the molding machine by action of the operator until the entire injection piston is withdrawn from the machine, the injection piston being guided by resting on its external profile during this extraction,
  • displacement of the device and of the injection piston still secured to the attachment system.

D'autres caractéristiques, buts et avantages de la présente invention apparaîtront à la lecture de la description détaillée qui va suivre et au regard des dessins annexés donnés à titre d'exemples non limitatifs et sur lesquels :

  • la figure 1 est une représentation schématique d'une vue de dessus en perspective d'une machine à mouler, d'un piston d'injection et d'un dispositif de pose ou de dépose du piston d'injection selon la présente invention,
  • la figure 2 est une représentation schématique d'une vue dessous en perspective d'une portion du dispositif de pose ou de dépose selon la présente invention montrant notamment une table élévatrice, un chariot et un système d'accrochage, la figure 2 étant agrandie par rapport à la figure 1,
  • la figure 3 est une représentation schématique d'une vue de dessus en perspective de l'autre face longitudinale opposée à la face longitudinale montrée à la figure 1 de la machine à mouler, du piston d'injection et du dispositif de pose ou de dépose selon la présente invention,
  • la figure 4 est une représentation schématique d'une vue de dessous en perspective d'une portion du piston d'injection et du dispositif de pose ou de dépose selon la présente invention montrant notamment le plan de travail de la table élévatrice, le chariot et le système d'accrochage, la figure 4 étant agrandie par rapport aux figures 1 et 3,
  • la figure 5 est une représentation schématique d'une vue en perspective d'une portion du piston d'injection et du dispositif de pose ou de dépose selon la présente invention sous un autre angle de vue que celui montré à la figure 4, la figure 5 étant agrandie par rapport aux figures 1 et 3,
  • la figure 6 est une représentation schématique d'une vue en perspective d'une demi-coupe longitudinale de la machine à mouler avec une portion du piston d'injection introduit partiellement en son intérieur, l'extrémité avant du piston d'injection portant un cône de guidage, la figure 6 étant agrandie par rapport aux figures 1 et 3,
  • la figure 7 est une représentation schématique d'une vue de dessus en perspective sous un autre angle de vue de la même face longitudinale de la machine à mouler que celle montrée à la figure 1.
Other characteristics, aims and advantages of the present invention will emerge on reading the detailed description which follows and with regard to the appended drawings given by way of non-limiting examples and in which:
  • the figure 1 is a schematic representation of a top perspective view of a molding machine, an injection piston and a device for installing or removing the injection piston according to the present invention,
  • the figure 2 is a schematic representation of a bottom perspective view of a portion of the installation or removal device according to the present invention showing in particular a lifting table, a carriage and a hooking system, the figure 2 being enlarged compared to the figure 1 ,
  • the figure 3 is a schematic representation of a top perspective view of the other longitudinal face opposite the longitudinal face shown in figure 1 of the molding machine, of the injection piston and of the installation or removal device according to the present invention,
  • the figure 4 is a schematic representation of a bottom perspective view of a portion of the injection piston and of the installation or removal device according to the present invention showing in particular the work surface of the lifting table, the carriage and the system of 'hanging, the figure 4 being enlarged compared to figures 1 and 3 ,
  • the figure 5 is a schematic representation of a perspective view of a portion of the injection piston and of the fitting or removal device according to the present invention from a different viewing angle than that shown in FIG. figure 4 , the figure 5 being enlarged compared to figures 1 and 3 ,
  • the figure 6 is a schematic representation of a perspective view of a longitudinal half-section of the molding machine with a portion of the injection piston partially inserted inside it, the front end of the injection piston carrying a guide cone , the figure 6 being enlarged compared to figures 1 and 3 ,
  • the figure 7 is a schematic representation of a top perspective view from another viewing angle of the same longitudinal face of the molding machine as shown in figure 1 .

Il est à garder à l'esprit que les figures sont données à titre d'exemples et ne sont pas limitatives de l'invention. Elles constituent des représentations schématiques de principe destinées à faciliter la compréhension de l'invention et ne sont pas nécessairement à l'échelle des applications pratiques. En particulier, les dimensions des différents éléments illustrés ne sont pas représentatives de la réalité.It should be kept in mind that the figures are given by way of example and are not limiting of the invention. They constitute schematic representations of principle intended to facilitate understanding of the invention and are not necessarily on the scale of practical applications. In particular, the dimensions of the various elements illustrated are not representative of reality.

Dans ce qui va suivre, il est fait référence à toutes les figures prises en combinaison. Quand il est fait référence à une ou des figures spécifiques, ces figures sont à prendre en combinaison avec les autres figures pour la reconnaissance des références numériques désignées.In what follows, reference is made to all the figures taken in combination. When reference is made to one or more specific figures, these figures are to be taken in combination with the other figures for the recognition of the designated reference numerals.

Dans ce qui va suivre, on comprend les termes « supérieur », « inférieur », et autres références à des positionnements spatiaux en référence aux composants positionnés dans leur position de fonctionnement et d'usage normal, notamment quand la machine à mouler et le dispositif de pose et de dépose sont disposés verticalement en reposant sur le sol, le piston d'injection s'étendant alors sensiblement horizontalement.In what follows, the terms “upper”, “lower” and other references to spatial positioning are understood with reference to the components positioned in their position of operation and normal use, in particular when the molding machine and the device. installation and removal are arranged vertically resting on the ground, the injection piston then extending substantially horizontally.

En se référant à toutes les figures et notamment aux figures 1, 3 et 7, la présente invention, selon un premier aspect, concerne un dispositif 1 de pose ou de dépose d'un piston 2 d'injection respectivement dans ou hors d'une machine 3 à mouler. La dénomination de machine 3 à mouler est à prendre dans son sens large et regroupe toute machine 3 avec un piston 2 d'injection la traversant, ce piston 2 d'injection pouvant peser plus de 100 kg et fréquemment environ 250 kg.With reference to all the figures and in particular to figures 1 , 3 and 7 , the present invention, according to a first aspect, relates to a device 1 for fitting or removing an injection piston 2 respectively in or out of a molding machine 3. The name of molding machine 3 is to be taken in its broad sense and includes all machine 3 with an injection piston 2 passing therethrough, this injection piston 2 capable of weighing more than 100 kg and frequently around 250 kg.

Au lieu d'un pont roulant, dans l'incapacité d'exercer sur le piston 2 une force de traction ou de poussée selon son axe longitudinal avantageusement horizontal ou proche de l'horizontal, le dispositif 1 de pose ou de dépose comprend une table 4 élévatrice supportant un système d'accrochage 5 d'une extrémité 2a du piston 2 d'injection.Instead of an overhead crane, unable to exert on the piston 2 a pulling or pushing force along its longitudinal axis, which is advantageously horizontal or close to the horizontal, the installation or removal device 1 comprises a table 4 elevator supporting a hooking system 5 of one end 2a of the injection piston 2.

En se référant à toutes les figures et plus particulièrement aux figures 2, 4 et 5 prises en combinaison avec les figures 1, 3 et 7, le système d'accrochage 5 est monté sur un chariot 6 mobile en translation sur la table 4 élévatrice dans deux directions opposées, ceci pour exercer une poussée pour introduire le piston 2 d'injection dans la machine 3 à mouler lors d'une pose ou pour exercer une traction pour extraire le piston 2 d'injection hors de la machine 3 lors d'une dépose. La poussée ou la traction s'effectuent avantageusement selon l'axe longitudinal du piston 2 pour éviter des blocages du mouvement du piston 2 par coincement avec la face d'extraction ou d'entrée de la machine 3 à mouler.With reference to all the figures and more particularly to figures 2 , 4 and 5 taken in combination with figures 1 , 3 and 7 , the hooking system 5 is mounted on a carriage 6 movable in translation on the lifting table 4 in two opposite directions, this to exert a thrust to introduce the injection piston 2 into the molding machine 3 during installation or to exert traction to extract the injection piston 2 from the machine 3 during removal. The push or pull is advantageously carried out along the longitudinal axis of the piston 2 to avoid blocking the movement of the piston 2 by jamming with the extraction or inlet face of the molding machine 3.

Le chariot 6 mobile présente des moyens d'entraînement 7 coopérant avec des moyens d'entraînement complémentaires 8 portés par la table 4 élévatrice. Les moyens d'entraînement 7 du chariot 6 mobile sont effectifs par action d'un opérateur sur des moyens d'actionnement 9 desdits moyens d'entraînement 7.The mobile carriage 6 has drive means 7 cooperating with complementary drive means 8 carried by the lifting table 4. The drive means 7 of the mobile carriage 6 are effective by action of an operator on the actuating means 9 of said drive means 7.

Dans une forme de réalisation préférentielle de l'invention, les moyens d'entraînement 7 du chariot 6 peuvent être sous la forme d'un pignon denté 7 engrenant dans une crémaillère 8 en tant que moyens d'entraînement complémentaires 8 portés par la table 4 élévatrice. Les moyens d'actionnement 9 peuvent être sous la forme d'un premier volant 9 actionnant une rotation du pignon denté 7. Un organe de réduction est opérationnel entre le premier volant 9 et le pignon denté 7. La réduction peut présenter un rapport de 1 sur 10.In a preferred embodiment of the invention, the drive means 7 of the carriage 6 may be in the form of a toothed pinion 7 meshing with a rack 8 as complementary drive means 8 carried by the table 4 elevator. The actuating means 9 can be in the form of a first flywheel 9 actuating a rotation of the toothed pinion 7. A reduction member is operational between the first flywheel 9 and the toothed pinion 7. The reduction can have a ratio of 1. out of 10.

La table 4 élévatrice peut comprendre un plan de travail 11 portant les moyens d'entraînement complémentaires 8, le chariot 6 étant mobile dans une longueur du plan de travail 11. Le plan de travail 11 peut être plus long que la table 4 élévatrice, ce qui représente une économie de matière, un plan de travail 11 nécessitant moins de matière qu'une table 4 élévatrice et étant plus simple de construction. Le plan de travail 11 peut être solidarisé en plusieurs points par des moyens de fixation avec la table 4 élévatrice qu'il recouvre pour être ferme en position sur cette table élévatrice.The lifting table 4 can include a work surface 11 carrying the complementary drive means 8, the carriage 6 being movable in a length of the work surface 11. The work surface 11 can be longer than the lifting table 4, this which represents a saving in material, a work surface 11 requiring less material than a lifting table 4 and being simpler to construct. The work plan 11 can be secured at several points by means of attachment with the lifting table 4 which it covers in order to be firm in position on this lifting table.

Comme table 4 élévatrice, il peut être choisi une table 4 de hauteur réglable avec, sur chacun de deux côtés opposés de la table 4, deux bras 12 articulés se croisant au moins une fois en X et réunissant une portion supérieure 4a et une portion inférieure 4b de la table 4 élévatrice. Pour la montée ou la descente de la table 4 élévatrice, un vérin de manœuvre associé aux bras 12 articulés peut rapprocher ou écarter la portion supérieure 4a de la portion inférieure 4b. Un actionnement du vérin de manœuvre peut être effectué par action d'un opérateur sur un levier, avantageusement par action de son pied sur le levier.As a lifting table 4, it is possible to choose a table 4 of adjustable height with, on each of two opposite sides of the table 4, two articulated arms 12 crossing at least once in X and joining an upper portion 4a and a lower portion. 4b of the lifting table 4. For raising or lowering the lifting table 4, an operating cylinder associated with the articulated arms 12 can bring the upper portion 4a closer or apart from the lower portion 4b. An actuation of the operating cylinder can be carried out by action of an operator on a lever, advantageously by action of his foot on the lever.

De plus, la table 4 élévatrice de hauteur réglable peut, par sa portion inférieure 4b, être supportée par un cadre 14 monté sur roulettes et roulant sur le sol. A titre d'exemple, la table 4 élévatrice peut être une table 4 en X présentant un vérin hydraulique et supportant une charge de 500 kg. De telles tables 4 élévatrices sont disponibles dans les ateliers et ne requièrent aucun critère spécifique pour le support du piston 2 à part leurs capacités d'élévation et de support de charge relativement lourde de plus de 250 kg. Une table 4 en X est particulièrement bien visible aux figures 1 à 3 et 7 et en partie à la figure 2.In addition, the lifting table 4 of adjustable height can, by its lower portion 4b, be supported by a frame 14 mounted on casters and rolling on the ground. By way of example, the lifting table 4 can be an X-shaped table 4 having a hydraulic cylinder and supporting a load of 500 kg. Such lifting tables 4 are available in workshops and do not require any specific criteria for the support of the piston 2 apart from their lifting capacities and carrying relatively heavy loads of more than 250 kg. A table 4 in X is particularly clearly visible at figures 1 to 3 and 7 and partly to the figure 2 .

Comme particulièrement bien visible aux figures 4 et 5, le chariot 6 peut être sous forme d'une équerre avec deux branches 6a, 6b inclinées l'une par rapport à l'autre, avantageusement à 90°. Une première branche 6a de l'équerre, sensiblement horizontale peut s'étendre parallèlement à la table 4 élévatrice en étant en appui sur la table 4 élévatrice ou sur le plan de travail 11 en portant les moyens d'entraînement 7 et les moyens d'actionnement 9.As particularly visible to figures 4 and 5 , the carriage 6 can be in the form of a square with two branches 6a, 6b inclined with respect to one another, advantageously at 90 °. A first branch 6a of the square, substantially horizontal can extend parallel to the lifting table 4 by resting on the lifting table 4 or on the work surface 11 by carrying the drive means 7 and the means of actuation 9.

Une deuxième branche 6b de l'équerre, sensiblement verticale mais ceci n'est pas limitatif, peut porter, vers une extrémité libre opposée à sa jonction avec la première branche 6a, le système d'accrochage 5. Des entretoises 13 de support peuvent être prévues entre les deux branches 6a et 6b pour les solidariser et renforcer ainsi le chariot 6.A second branch 6b of the square, substantially vertical but this is not limiting, can carry, towards a free end opposite to its junction with the first branch 6a, the hooking system 5. Support spacers 13 can be provided between the two branches 6a and 6b to join them together and thus strengthen the carriage 6.

Comme notamment visible à la figure 5, le système d'accrochage 5 peut comporter un organe d'accrochage du piston 2 d'injection muni d'un corps 15 dans lequel s'insère une queue d'un anneau de levage 16. L'anneau de levage 16 peut présenter une tête délimitant en son intérieur une ouverture interne destinée à être appliquée contre une extrémité 2a longitudinale du piston 2 d'injection. Par cette ouverture interne de l'anneau de levage 16 passe un moyen de fixation apte à s'insérer dans le piston 2 d'injection. La queue de l'anneau de levage 16 peut être bloquée en position dans le corps 15 par un moyen de blocage 17 en position, avantageusement une goupille 17 traversant le corps 15 et la queue de l'anneau de levage 16.As notably visible at the figure 5 , the hooking system 5 can include a hooking member of the injection piston 2 provided with a body 15 in which is inserted a tail of a lifting ring 16. The lifting ring 16 can have a head delimiting in its interior an internal opening intended to be applied against a longitudinal end 2a of the injection piston 2. Through this internal opening of the lifting ring 16 passes a fastening means capable of being inserted into the injection piston 2. The tail of the lifting ring 16 can be locked in position in the body 15 by a locking means 17 in position, advantageously a pin 17 passing through the body 15 and the tail of the lifting ring 16.

En se référant à toutes les figures, la présente invention, selon un deuxième aspect, concerne aussi un ensemble d'un piston 2 d'injection et d'un dispositif 1 tel que précédemment décrit. Pour la réception du moyen de fixation pénétrant par l'ouverture pratiquée dans la tête de l'anneau de levage 16, une extrémité 2a du piston 2 en vis-à-vis du dispositif 1 peut présenter un évidement fileté 20 dans lequel s'insère le moyen de fixation solidarisé avec le système d'accrochage 5 du dispositif 1. Le moyen de fixation est alors avantageusement sous la forme d'une vis ou d'une tige filetée. Cet évidement fileté 20 interne au piston 2 d'injection est visible en pointillés à la figure 4.With reference to all the figures, the present invention, according to a second aspect, also relates to an assembly of an injection piston 2 and of a device 1 as described above. For the reception of the fastening means penetrating through the opening made in the head of the lifting ring 16, one end 2a of the piston 2 facing the device 1 may have a threaded recess 20 into which is inserted the fixing means integral with the hooking system 5 of the device 1. The fixing means is then advantageously in the form of a screw or a threaded rod. This threaded recess 20 internal to the injection piston 2 is visible in dotted lines at the figure 4 .

Particulièrement utile, quand le chariot 6 et le système d'accrochage 5 se trouve à distance d'une première face 3a de la machine 3 à mouler par laquelle pénètre ou sort le piston 2 d'injection ou quand le piston 2 d'injection est complètement sorti de la machine 3 à mouler, le dispositif 1 peut comporter au moins deux supports guides 18.Particularly useful, when the carriage 6 and the hooking system 5 are located at a distance from a first face 3a of the molding machine 3 through which the injection piston 2 enters or exits or when the injection piston 2 is completely out of the molding machine 3, the device 1 can include at least two guide supports 18.

Ces supports guides 18 peuvent être inclinés l'un vers l'autre et disposés symétriquement par rapport à un axe longitudinal du piston 2 d'injection, donc en opposition par rapport à un point de la longueur du piston 2 d'injection. Les supports guides 18 peuvent être sous la forme de barres inclinées vers le piston 2 d'injection en présentant des extrémités libres 18a pointant vers le piston 2 d'injection et rentrant en contact avec la périphérie du piston 2 d'injection.These guide supports 18 can be inclined towards one another and arranged symmetrically with respect to a longitudinal axis of the injection piston 2, therefore in opposition with respect to a point along the length of the injection piston 2. The guide supports 18 may be in the form of bars inclined towards the injection piston 2, having free ends 18a pointing towards the injection piston 2 and coming into contact with the periphery of the injection piston 2.

Comme les dimensions du piston 2 d'injection peuvent changer sur sa longueur ou pour adapter le dispositif 1 à plusieurs types de piston 2 d'injection, il est prévu des moyens de réglage 19 d'un espacement entre les deux supports guides 18 afin que les extrémités libres 18a des supports guides 18 abutent une portion respective de la périphérie externe du piston 2.As the dimensions of the injection piston 2 can change along its length or to adapt the device 1 to several types of injection piston 2, means 19 are provided for adjusting a spacing between the two guide supports 18 so that the free ends 18a of the guide supports 18 abut a respective portion of the outer periphery of the piston 2.

Ces moyens de réglage 19 peuvent être sous la forme d'un deuxième volant 19 de réglage. Comme les pistons 2 d'injection sont sensiblement de forme cylindrique avec cependant un diamètre pouvant varier du fait de collerettes ou autres formes à leur périphérie, les supports guides 18 s'abutent, après réglage de l'espacement les séparant, par leurs extrémités libres 18a contre la périphérie du piston 2 d'injection.These adjustment means 19 may be in the form of a second adjustment wheel 19. As the injection pistons 2 are substantially cylindrical in shape with, however, a diameter which may vary due to flanges or other shapes at their periphery, the guide supports 18 abut, after adjusting the spacing between them, by their free ends. 18a against the periphery of the injection piston 2.

Le deuxième volant 19 sert au moment de l'extraction ou de la pose du piston 2 d'injection à compenser la différence de diamètre pouvant survenir sur un même piston 2 ou entre deux pistons 2 différents de deux machines 3 à mouler différentes. Les supports guides gardent le piston 2 bien horizontal tout en évitant tout coincement du piston 2 avec la machine 3 à mouler ou tout fléchissement excessif du piston 2 d'injection vers le bas.The second flywheel 19 is used when extracting or installing the injection piston 2 to compensate for the difference in diameter that may occur on the same piston 2 or between two different pistons 2 of two different molding machines 3. The guide supports keep the piston 2 horizontal while avoiding any jamming of the piston 2 with the molding machine 3 or any excessive sagging of the injection piston 2 downwards.

Par rotation du deuxième volant 19, les deux supports guides 18, avantageusement en acier, peuvent se rapprocher ou s'éloigner grâce à un système de vis inversée en faisant étau pour tenir le piston 2 d'injection entre eux. Les extrémités libres 18a, visibles notamment à la figure 2, des supports guides 18 sont avantageusement revêtues chacune d'un patin respectif, avantageusement d'un patin en bronze.By rotating the second flywheel 19, the two guide supports 18, advantageously made of steel, can move closer or further apart thanks to a system of inverted screws, forming a vice to hold the injection piston 2 between them. The free ends 18a, visible in particular at the figure 2 , guide supports 18 are advantageously each coated with a respective pad, advantageously with a bronze pad.

Ces patins en bronze contribuent à réduire l'effort de poussée ou de traction exercé sur le piston 2 d'injection. Une autre matière avantageusement lubrifiée peut être aussi utilisée. Ces supports guides 18 sont très avantageux quand une grande partie du piston 2 d'injection se trouve à l'extérieur de la machine 3, par exemple la moitié ou plus du piston 2 d'injection et surtout quand tout le piston 2 d'injection a été extrait de la machine 3 à mouler.These bronze pads help reduce the pushing or pulling force exerted on the injection piston 2. Another advantageously lubricated material can also be used. These guide supports 18 are very advantageous when a large part of the injection piston 2 is located outside the machine 3, for example half or more of the injection piston 2 and especially when the entire injection piston 2 was taken out of the molding machine 3.

Les premier et deuxième volants 9 et 19 peuvent être munis d'une manivelle pour faciliter leur rotation par l'opérateur.The first and second flywheels 9 and 19 can be provided with a crank to facilitate their rotation by the operator.

Comme notamment montré à la figure 6, le piston 2 d'injection, de forme allongée et avantageusement cylindrique, peut présenter à une extrémité longitudinale opposée 2b à l'extrémité longitudinale 2a solidarisée avec le système d'accrochage 5 du dispositif 1 un cône 21 de guidage amovible pointant dans une direction opposée au dispositif 1.As shown in particular at figure 6 , the injection piston 2, of elongated and advantageously cylindrical shape, may have at a longitudinal end 2b opposite the longitudinal end 2a secured to the attachment system 5 of the device 1 a removable guide cone 21 pointing in one direction opposed to device 1.

Ce cône 21 de guidage sert à assurer une progression sans coincement de cette extrémité longitudinale opposée 2b et donc du piston 2 d'injection à l'intérieur de la machine 3 à mouler, avantageusement lors d'une poussée du piston 2 d'injection dans la machine 3 à mouler. En effet, cette extrémité longitudinale opposée 2b, alors extrémité avant en prenant comme référence le parcours du chariot 6 en rapprochement de la machine 3 à mouler peut heurter des éléments se trouvant à l'intérieur de la machine 3 à mouler. Le cône 21 de guidage aide au repositionnement progressif de l'extrémité opposée en passant à travers lesdits éléments formant obstacles.This guide cone 21 serves to ensure a progression without jamming of this opposite longitudinal end 2b and therefore of the injection piston 2 inside the molding machine 3, advantageously during a pushing of the injection piston 2 in the molding machine 3. In fact, this opposite longitudinal end 2b, then the front end, taking as a reference the path of the carriage 6 towards the molding machine 3, may strike elements located inside the molding machine 3. The guide cone 21 assists in the progressive repositioning of the opposite end while passing through said elements forming obstacles.

Par exemple, le cône 21 de guidage sert pendant la pose du piston 2 d'injection à passer l'épaulement 24 du vérin d'injection de la machine 3 à mouler. Le cône 21 de guidage peut être de préférence en acier. Le cône 21 de guidage peut présenter des passages 21a ouverts sur sa périphérie ou sa pointe pour permettre son montage sur l'extrémité longitudinale opposée 2b du piston 2 d'injection qui le porte. Un axe fileté est introduit dans chaque passage 21 et se visse dans le piston 2 d'injection solidarisant le cône 21 de guidage avec le piston 2 d'injection.For example, the guide cone 21 is used during the installation of the injection piston 2 to pass the shoulder 24 of the injection cylinder of the molding machine 3. The guide cone 21 may preferably be made of steel. The guide cone 21 may have passages 21a open on its periphery or its tip to allow its mounting on the opposite longitudinal end 2b of the injection piston 2 which carries it. A threaded pin is introduced into each passage 21 and is screwed into the injection piston 2 joining the guide cone 21 with the injection piston 2.

Le cône 21 de guidage peut présenter une fonction auxiliaire, ceci quand le piston 2 d'injection dépasse légèrement de la machine 3 à mouler sur la deuxième face opposée 3b de la machine 3 à la première face 3a par laquelle le piston 2 d'injection a été introduit.The guide cone 21 may have an auxiliary function, this when the injection piston 2 protrudes slightly from the molding machine 3 on the second opposite face 3b from the machine 3 to the first face 3a via which the injection piston 2 was introduced.

En se référant plus particulièrement aux figures 1, 3 et 7, la présente invention, selon un troisième aspect, concerne donc une machine 3 à mouler logeant un piston 2 d'injection ayant fait partie d'un ensemble tel que décrit précédemment. Le dispositif 1 de pose et de dépose a été détaché du piston 2 d'injection. L'extrémité longitudinale 2a du piston 2 d'injection présentant l'évidement fileté 20 précédemment en vis-à-vis du système d'accrochage 5 du dispositif 1 affleure alors sur une première face 3a de la machine 3 par une ouverture d'entrée 22 pratiquée dans cette face.With particular reference to figures 1 , 3 and 7 , the present invention, according to a third aspect, therefore relates to a molding machine 3 housing an injection piston 2 having been part of an assembly as described above. The installation and removal device 1 has been detached from the injection piston 2. The longitudinal end 2a of the injection piston 2 having the threaded recess 20 previously facing the attachment system 5 of the device 1 is then flush with a first face 3a of the machine 3 via an inlet opening 22 practiced in this face.

Dans cette configuration, le cône 21 de guidage peut faire saillie à l'extérieur de la machine 3 d'injection par une ouverture de sortie 23 sur la deuxième face 3b de la machine 3 opposée à la première face 3a.In this configuration, the guide cone 21 can project outside the injection machine 3 through an outlet opening 23 on the second face 3b of the machine 3 opposite to the first face 3a.

En se référant à toutes les figures, selon un quatrième aspect, la présente invention concerne enfin un procédé de pose ou de dépose d'un piston 2 d'injection respectivement dans ou hors d'une machine 3 à mouler par un tel dispositif 1. La machine 3 à mouler présente une première face 3a munie d'une ouverture d'entrée 22 par laquelle le piston 2 d'injection est à introduire ou à extraire.Referring to all the figures, according to a fourth aspect, the present invention finally relates to a method for fitting or removing an injection piston 2 respectively in or out of a molding machine 3 by such a device 1. The molding machine 3 has a first face 3a provided with an inlet opening 22 through which the injection piston 2 is to be introduced or extracted.

Le procédé de pose présente les étapes suivantes:

  • positionnement du dispositif 1 vis-à-vis de la première face 3a de la machine 3 présentant l'ouverture d'entrée 22, le piston 2 d'injection reposant sur une table 4 élévatrice et ayant été solidarisé avec un système d'accrochage 5 monté sur un chariot 6 mobile en translation sur la table 4 élévatrice, des guides supports 18 supportant avantageusement le piston 2 d'injection vers sa portion d'extrémité longitudinale opposée 2b à l'extrémité longitudinale 2a reliée au système d'accrochage 5,
  • éventuellement, déverrouillage du blocage en position du piston 2 sur la table 4 élévatrice quand le piston 2 d'injection était maintenu en position sur cette table 4 par exemple par un cadenas et une chaîne et, avantageusement, une solidarisation du dispositif 1 avec la machine 3 à mouler, ceci par exemple à l'aide d'une barre 10, visible notamment à la figure 2. La barre 10 est solidarisée à une extrémité avec la machine 3 à mouler et solidarisée de manière amovible à son autre extrémité avec la table 4 élévatrice ou le plan de travail 11 superposé à la table 4 élévatrice,
  • réglage d'une hauteur de la table 4 élévatrice afin que le système d'accrochage 5 et le piston 2 qu'il supporte soit en face de l'ouverture d'entrée 22 de la machine 3 par son extrémité longitudinale opposée 2b à celle solidarisée au système d'accrochage 5, ceci, le cas échéant, par action de l'opérateur sur le levier d'un vérin associé à la table 4 élévatrice,
  • avancée du chariot 6 mobile du système d'accrochage 5 supportant le piston 2 vers la première face 3a, avantageusement par action d'un opérateur sur le premier volant 9, et
  • introduction du piston 2 dans la machine 3 à mouler par action de l'opérateur et déplacement du chariot 6 mobile vers la machine 3 à mouler jusqu'à ce que l'extrémité 2a du piston 2 d'injection solidarisée au système d'accrochage 5 affleure de l'ouverture d'entrée 22 sur la première face 3a de la machine à mouler 3, le piston 2 d'injection étant guidé et supporté par appui sur son profil extérieur pendant cette avancée du chariot 6, avantageusement par des supports guides 18 précédemment décrits réglables par action de l'opérateur sur le deuxième volant 19,
  • désolidarisation du piston 2 d'injection avec le dispositif 1, le cas échéant par dévissage du moyen de fixation passant par l'anneau de levage 16 et, éventuellement désolidarisation du dispositif 1 de la machine 3 à mouler.
The installation process has the following steps:
  • positioning of the device 1 vis-à-vis the first face 3a of the machine 3 having the inlet opening 22, the injection piston 2 resting on a lifting table 4 and having been secured with a hooking system 5 mounted on a carriage 6 movable in translation on the lifting table 4, support guides 18 advantageously supporting the injection piston 2 towards its longitudinal end portion 2b opposite the longitudinal end 2a connected to the attachment system 5,
  • possibly, unlocking of the locking in position of the piston 2 on the lifting table 4 when the injection piston 2 was held in position on this table 4, for example by a padlock and a chain and, advantageously, a securing of the device 1 with the machine 3 to be molded, for example using a bar 10, visible in particular at the figure 2 . The bar 10 is secured at one end with the machine 3 to molded and removably secured at its other end with the lifting table 4 or the work surface 11 superimposed on the lifting table 4,
  • adjustment of a height of the lifting table 4 so that the hooking system 5 and the piston 2 that it supports is opposite the inlet opening 22 of the machine 3 by its longitudinal end 2b opposite to that attached to the attachment system 5, this, where appropriate, by action by the operator on the lever of a jack associated with the lifting table 4,
  • advance of the mobile carriage 6 of the attachment system 5 supporting the piston 2 towards the first face 3a, advantageously by action of an operator on the first flywheel 9, and
  • introduction of the piston 2 into the molding machine 3 by action of the operator and movement of the mobile carriage 6 towards the molding machine 3 until the end 2a of the injection piston 2 is secured to the attachment system 5 flush with the inlet opening 22 on the first face 3a of the molding machine 3, the injection piston 2 being guided and supported by resting on its outer profile during this advance of the carriage 6, advantageously by guide supports 18 previously described adjustable by action of the operator on the second handwheel 19,
  • separation of the injection piston 2 from the device 1, where appropriate by unscrewing the fixing means passing through the lifting ring 16 and, optionally, separation of the device 1 from the molding machine 3.

Le procédé de dépose présente les étapes suivantes:

  • positionnement du dispositif 1 vis-à-vis de la première face 3a de la machine 3 présentant l'ouverture d'entrée 22, le piston 2 d'injection étant initialement inséré dans la machine 3 à mouler avec une extrémité longitudinale 2a du piston 2 affleurant de la première face 3a à l'ouverture d'entrée 22, avec éventuellement solidarisation du dispositif 1 avec la machine 3 à mouler,
  • réglage d'une hauteur de la table 4 élévatrice afin que le système d'accrochage 5 du dispositif 1 soit en face de l'ouverture d'entrée 22, ceci, le cas échéant, par action de l'opérateur sur le levier d'un vérin associé à la table 4 élévatrice,
  • solidarisation du système d'accrochage 5 avec l'extrémité longitudinale 2a affleurante du piston 2, le cas échéant par vissage du moyen de fixation passant par un anneau de levage 16,
  • extraction du piston 2 de la machine 3 à mouler, avantageusement par action d'un opérateur sur le premier volant 9, jusqu'à ce que tout le piston 2 d'injection soit retiré de la machine 3, le piston 2 d'injection étant guidé par appui sur son profil extérieur pendant cette extraction, avantageusement par des supports guides 18 précédemment décrits réglables par action de l'opérateur sur le deuxième volant 19,
  • déplacement du dispositif 1 et du piston 2 d'injection toujours solidarisé au système d'accrochage 5, avantageusement après désolidarisation du dispositif 1 de la machine 3 à mouler,
  • le cas échéant, blocage en position du piston 2 d'injection sur le dispositif 1 par des moyens de verrouillage tels que l'association d'un cadenas et d'une chaîne.
The removal process has the following steps:
  • positioning of the device 1 vis-à-vis the first face 3a of the machine 3 having the inlet opening 22, the injection piston 2 being initially inserted into the molding machine 3 with a longitudinal end 2a of the piston 2 flush with the first face 3a at the inlet opening 22, possibly with the device 1 being secured to the molding machine 3,
  • adjustment of a height of the lifting table 4 so that the hooking system 5 of the device 1 is in front of the inlet opening 22, this, if necessary, by action of the operator on the lever of a jack associated with the lifting table 4,
  • securing of the attachment system 5 with the longitudinal end 2a flush with the piston 2, if necessary by screwing the fixing means passing through a lifting ring 16,
  • extraction of the piston 2 from the molding machine 3, advantageously by action of an operator on the first flywheel 9, until all of the injection piston 2 is withdrawn from the machine 3, the injection piston 2 being guided by pressing on its external profile during this extraction, advantageously by guide supports 18 previously described adjustable by action of the operator on the second handwheel 19,
  • displacement of the device 1 and of the injection piston 2 still secured to the attachment system 5, advantageously after separation of the device 1 from the molding machine 3,
  • where appropriate, locking in position of the injection piston 2 on the device 1 by locking means such as the association of a padlock and a chain.

Claims (10)

  1. Device (1) for fitting or removing an injection piston (2) respectively in or out of a molding machine (3), characterized in that the device (1) comprises a lifting table (4) supporting a hooking system (5) of one end (2a) of the injection piston (2), the hooking system (5) being mounted on a carriage (6) movable in translation on the table (4) elevator in two opposite directions, the mobile carriage (6) having drive means (7) cooperating with complementary drive means (8) carried by the lifting table (4), the drive means (7) of the mobile carriage (6) being effective by action of an operator on actuation means (9) of said drive means (7).
  2. Device (1) according to claim 1, wherein the drive means (7) of the carriage (6) are in the form of a toothed pinion (7) meshing with a rack (8) as drive means complementary (8) carried by the lifting table (4), the actuating means (9) being in the form of a first flywheel (9) actuating a rotation of the toothed pinion (7), a reduction member being operational between the first flywheel (9) and the toothed pinion (7).
  3. Device (1) according to any one of the preceding claims, in which the lifting table (4) comprises a work surface (11) carrying the complementary drive means (8), the carriage (6) being movable in a length of the work plan (11).
  4. Device (1) according to any one of the preceding claims, wherein the lifting table (4) is a height adjustable table (4) with, on each of two opposite sides of the table (4), two arms (12) articulated crossing at least once in X and bringing together an upper portion (4a) and a lower portion (4b) of the lifting table (4), a maneuvering jack associated with the articulated arms (12) bringing the upper portion (4a) of the lower portion (4b), the lower portion (4b) of the height-adjustable table (4) being supported by a frame (14) mounted on casters, an actuation of the operating cylinder being effected by the action of a operator on a lever.
  5. Device (1) according to any one of the preceding claims, in which the carriage (6) is in the form of a square with two branches (6a, 6b) inclined with respect to one another, a first branch (6a) of the square extending parallel to the lifting table (4) carrying the drive means (7) and the actuating means (9) and a second branch (6b) of the bearing square, towards a free end opposite to the first branch (6a), the hooking system (5) comprising a hooking member of the injection piston (2) provided with a body (15) in which is inserted a tail a lifting ring (16) delimiting an internal opening receiving a fastening means adapted to fit into the injection piston (2), the tail of the lifting ring (16) being locked in position in the body (15) by a locking means (17) in position of the tail of the lifting ring (16).
  6. An assembly of an injection piston (2) and a device (1) according to any one of the preceding claims, in which one end (2a) of the piston (2) facing the device (1) has a threaded recess (20) into which is inserted a fastening means integral with the attachment system (5) of the device (1).
  7. Assembly according to the preceding claim, in which the device (1) comprises at least two guide supports (18), inclined towards each other and arranged symmetrically with respect to a longitudinal axis of the injection piston (2), the guide supports (18) having free ends (18a) pointing towards the injection piston (2) with means (19) for adjusting a spacing between the two guide supports (18) so that the free ends (18a) guide supports (18) abut a respective portion of the outer periphery of the piston (2).
  8. Assembly according to any one of claims 6 or 7, in which the piston (2) is of elongated shape and has at an end opposite (2b) to the end (2a) secured with the attachment system (5) of the device (1) a removable guide cone (21) pointing in a direction opposite to the device (1).
  9. Molding machine (3) housing an injection piston (2) having been part of the assembly according to the preceding claim, the device (1) having been detached from the injection piston (2) and the end (2a) of the injection piston (2) having the threaded recess (20) flush with a first face (3a) of the machine (3) via an inlet opening (22) made in this first face (3a), characterized in that the guide cone (21) projects outside the injection machine (3) through an outlet opening (23) on a second face (3b) of the machine (3) opposite the first face (3a).
  10. A method of fitting or removing an injection piston (2) respectively in or out of a molding machine (3) by a device (1) according to any one of claims 1 to 5, the machine (3) to be molded having a first face (3a) provided with an inlet opening (22) through which the injection piston (2) is to be introduced or extracted, characterized in that it comprises the following steps for a pose :
    - positioning of the device (1) vis-à-vis the first face (3a) of the machine (3) having the inlet opening (22), the injection piston (2) resting on a table (4) lifting device and having been secured to a hooking system (5) mounted on a carriage (6) movable in translation on the lifting table (4),
    - adjustment of a height of the lifting table (4) so that the hooking system (5) and the piston (2) that it supports is opposite the inlet opening (22) of the machine (3),
    - advance of the mobile carriage (6) of the hooking system (5) supporting the piston (2) towards the first face (3a) and introduction of the piston (2) into the molding machine (3) by action of the operator until the end (2a) of the injection piston (2) secured to the attachment system (5) is flush with the inlet opening (22), the injection piston (2) being guided by pressing on its external profile during this advance,
    - separation of the injection piston (2) from the device (1),
    or in that it comprises the following steps for a removal :
    - positioning of the device (1) vis-à-vis the first face (3a) of the machine (3) having the inlet opening (22), the injection piston (2) then being inserted into the machine (3) to be molded with one end (2a) of the piston (2) flush with the first face (3a),
    - adjustment of a height of the lifting table (4) so that the attachment system (5) of the device (1) is opposite the inlet opening (22),
    - securing of the attachment system (5) with the flush end of the piston (2) and extraction of the piston (2) from the molding machine (3) by action of the operator until the entire piston (2) injection is withdrawn from the machine (3), the injection piston (2) being guided by pressing on its outer profile during this extraction,
    - displacement of the device (1) and of the injection piston (2) still secured to the attachment system (5).
EP18704273.4A 2017-02-21 2018-01-16 Device for installing an injection piston in or removing same from a moulding machine Active EP3585536B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1751357A FR3063028B1 (en) 2017-02-21 2017-02-21 DEVICE FOR PLACING OR REMOVING AN INJECTION PISTON IN OR OUT OF A MOLDING MACHINE
PCT/FR2018/050098 WO2018154200A1 (en) 2017-02-21 2018-01-16 Device for installing an injection piston in or removing same from a moulding machine

Publications (2)

Publication Number Publication Date
EP3585536A1 EP3585536A1 (en) 2020-01-01
EP3585536B1 true EP3585536B1 (en) 2021-08-25

Family

ID=58401908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18704273.4A Active EP3585536B1 (en) 2017-02-21 2018-01-16 Device for installing an injection piston in or removing same from a moulding machine

Country Status (4)

Country Link
EP (1) EP3585536B1 (en)
FR (1) FR3063028B1 (en)
MA (1) MA47582A (en)
WO (1) WO2018154200A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1188769B (en) * 1978-05-04 1988-01-28 Ts Pk I T Bjuro Glavantekh FOUNDRY SOULS MANUFACTURING PLANT
JPH0215983A (en) * 1988-06-30 1990-01-19 Aichi Steel Works Ltd Work mounting and demounting device
FR2886190B1 (en) * 2005-05-25 2008-12-26 Peugeot Citroen Automobiles Sa AUTONOMOUS MOBILE LIFTING TABLE FOR THE POWER SUPPLY OF WORKSTATIONS
KR100619877B1 (en) * 2005-08-04 2006-09-06 (주)태진이엔지 Manual driving type work table
DE102005048717A1 (en) * 2005-10-12 2007-04-19 Allper Ag Multi-part piston for a cold chamber casting machine
AT510516B1 (en) * 2010-09-21 2013-10-15 Trumpf Maschinen Austria Gmbh MANUFACTURING CELL WITH A COMPONENT TRANSFER DEVICE AND TRANSPORT DEVICE FOR PARTS AND SPACERS
CN203498020U (en) * 2013-10-11 2014-03-26 福州台捷液压机械有限公司 Detection lifting table
CN204434166U (en) * 2014-12-12 2015-07-01 国家电网公司 A kind of lifting table for electrical equipment

Also Published As

Publication number Publication date
EP3585536A1 (en) 2020-01-01
MA47582A (en) 2020-01-01
FR3063028B1 (en) 2019-03-22
WO2018154200A1 (en) 2018-08-30
FR3063028A1 (en) 2018-08-24

Similar Documents

Publication Publication Date Title
FR2922875A1 (en) METHOD FOR LIFTING A CRANE ARROW
FR2774639A1 (en) Lorry mounted skip handling frame
EP3247610B1 (en) Cart for transporting or storing a bicycle
FR2540279A1 (en) SCREWDRIVER APPARATUS, IN PARTICULAR FOR SCREWING-DISCHARGING THE FASTENERS OF THE COVER OF THE TANK OF A NUCLEAR REACTOR
FR3074205A1 (en) BANK, BANK ASSEMBLY, AND ASSEMBLY METHOD
EP3585536B1 (en) Device for installing an injection piston in or removing same from a moulding machine
EP1626893B1 (en) Device comprising a quick-action clamping mechanism and used to fix a bicycle wheel to a frame, with an overhang
FR2512101A1 (en) CYLINDER MECHANISM FOR DRILLING TOW
EP0722413B1 (en) Device for fitting shop windows
EP2211001B1 (en) Shuttering for forming a concrete wall, group of formworks assembled to each other
FR2718777A1 (en) Shuttering with stop ends
WO2009147359A1 (en) Device for mounting a mandrel in a mill, mill equipped with such a device and mandrel for such a mill
FR2501575A1 (en) APPARATUS FOR THE ADVANCE AND ORIENTATION OF PARTS IN A PRESS
CA1240822A (en) Socket core holder for centrifugal hub and spigot pipe casting machine
FR2857899A1 (en) Compacting press, especially for nuclear waste, comprises support with moving compacter, and guide assembly with jacket, hoop and cradle
FR2853892A1 (en) LIFTING TABLE FOR VEHICLES
EP3617131A1 (en) Yoke, system for lifting and setting down comprising such a yoke and method for lifting and setting down of a vehicle
FR2916013A1 (en) DEVICE FOR THE ROTATIONAL DRIVE OF A TUBULAR ELEMENT PROVIDED FOR RECEIVING AND VEHICULATING A PRESSURIZED FLUID
FR2904596A1 (en) Load e.g. construction material, transporting motor vehicle i.e. lorry, has controlling cabin controlling motor assembly, and longitudinal jacks removably fixed to chassis and displacing cabin outside chassis
FR2879488A1 (en) BROCHING DEVICE
FR2583678A1 (en) TENSION TYPE PRESS
FR2677004A1 (en) Device ensuring the gripping of a vertical cask (drum, barrel) in order to lift it, tilt in into a horizontal position and apply to it a rotation of a half-turn in the horizontal plane before putting it down again
FR2936238A1 (en) Handling device e.g. handling jack, for lifting vehicle for wheel replacement, has support units arranged on engagement units, respectively, where one of engagement units is fixed to one of support units by reversible fixation unit
FR3036661A1 (en) DEVICE FOR BRIDING ON A VEHICLE A CONTAINER WHICH ALLOWS IT TO PROVIDE ENERGY
FR2533482A1 (en) Machine for the placing, removal and returning to store of dies for pelleting machines

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190709

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
RAV Requested validation state of the european patent: fee paid

Extension state: MA

Effective date: 20190709

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PSA AUTOMOBILES SA

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210518

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 602018022349

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

Ref country code: AT

Ref legal event code: REF

Ref document number: 1423273

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210915

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602018022349

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20211101

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210825

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1423273

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210825

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211227

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211125

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211125

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602018022349

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

26N No opposition filed

Effective date: 20220527

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210825

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220116

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20221220

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231219

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231219

Year of fee payment: 7

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602018022349

Country of ref document: DE

Owner name: STELLANTIS AUTO SAS, FR

Free format text: FORMER OWNER: PSA AUTOMOBILES SA, POISSY, FR