EP0809602A1 - Method and apparatus for making, delivering and positioning packing elements for parts made of an electrically non-conductive material - Google Patents

Method and apparatus for making, delivering and positioning packing elements for parts made of an electrically non-conductive material

Info

Publication number
EP0809602A1
EP0809602A1 EP96904132A EP96904132A EP0809602A1 EP 0809602 A1 EP0809602 A1 EP 0809602A1 EP 96904132 A EP96904132 A EP 96904132A EP 96904132 A EP96904132 A EP 96904132A EP 0809602 A1 EP0809602 A1 EP 0809602A1
Authority
EP
European Patent Office
Prior art keywords
hot
melt
face
melt material
installation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96904132A
Other languages
German (de)
French (fr)
Inventor
Dominique Thomas
Frédéric BIERDEL
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.)
SEVA SA
Original Assignee
SEVA 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 SEVA SA filed Critical SEVA SA
Publication of EP0809602A1 publication Critical patent/EP0809602A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/80—Arrangements of heating or cooling devices for liquids to be transferred
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/58—Arrangements of pumps
    • B67D7/62—Arrangements of pumps power operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • B29C31/042—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds
    • B29C31/047—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds combined with moving moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • B29C31/06—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting
    • B29C31/065—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting using volumetric measuring chambers moving between a charging station and a discharge station
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • B29C43/06—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts
    • B29C43/08—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts with circular movement, e.g. mounted on rolls, turntables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3433—Feeding the material to the mould or the compression means using dispensing heads, e.g. extruders, placed over or apart from the moulds
    • B29C2043/3438—Feeding the material to the mould or the compression means using dispensing heads, e.g. extruders, placed over or apart from the moulds moving during dispensing over the moulds, e.g. laying up
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C2043/3676—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions
    • B29C2043/3689—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions on a support table, e.g. flat disk-like tables having moulds on the periphery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • B29C31/06—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0097—Glues or adhesives, e.g. hot melts or thermofusible adhesives

Definitions

  • the present invention relates to the manufacture, installation and installation of wedging elements.
  • Said elements constitute spacers for parts made of electrically non-conductive material.
  • cork discs on which an adhesive material has been stuck on one side. These tablets have the drawback of being made of two materials. In addition, cork can only be shaped once.
  • the invention relates to a process for manufacturing, installing and installing elements produced by following the successive steps. following:
  • the step of liquefying the face opposite to the marked face is carried out by adding molten hot-melt material.
  • the molten hot-melt material is the same as that of the element;
  • a final step consists in placing another piece on the marked face of the element secured to the previous piece.
  • the invention also relates to an installation of the type comprising a barrel emptying device receiving a tank of hot-melt product, said tank being connected to a volumetric spray gun for laying hot-melt material in the at least one imprint of a mold, the installation comprising at least one marking means coming into contact with the material in the imprint, a cooling means and a transfer means for removing the element in order to bring it to the station of the liquid side.
  • the installation comprises a means, in particular a nozzle for depositing on said element cooled with a drop of liquid hot-melt product, said means for depositing connected to the barrel emitter being located upstream of the volumetric gun.
  • the invention also relates to a device according to which the mold comprises at least a second imprint in the form of a bar making it possible to manufacture bars of hot-melt product intended to supply a manual gun for placing liquid product on one side of the 'element.
  • the mold and the cooling means are constituted by a rotary table comprising cavities arranged along a trajectory circular, the table comprising means for advancing in stepwise rotation corresponding to the spacing of each imprint, the marking means consisting of the shape of the bottom of the imprint or the shape of the surface of a pusher coming form
  • the transfer means is a suction cup.
  • FIG. 1 schematically shows in vertical section a manufacturing installation for installing and installing wedging elements according to the invention and the manufacturing devices.
  • FIG. 1 schematically represents in vertical section, the devices for setting up and placing an installation according to the invention supplementing FIG. 1.
  • - Fig. 3 shows in top view, the indexing table according to FIGS. 1 and 2.
  • - Figs. 4, 5 and 6 are partial schematic sectional views illustrating phases of shaping of the wedging elements.
  • - Fig. 7 schematically represents an installation part according to the invention allowing the manufacture of wedging elements for manual laying seen in vertical section.
  • Fig. 8 shows a gun for manual installation of the liquid face.
  • FIG. 9 shows a variant of a device for manufacturing an installation according to the invention.
  • FIG. 10 shows a variant of the step of the method for producing the liquid face.
  • the installation shown in FIG. 1 includes a barrel emptying device 1.
  • This device 1 comprises a chassis 2 on which a tank or barrel 3 filled is placed of hot-melt product 4, a pumping group 5 is arranged above the barrel 3.
  • Cylinders 66 adjust the pumping group 5 according to the level of the surface of the hot-melt product 4 contained in the barrel 5.
  • the pumping group 5 is connected by a pipe 6 to a gear gun 7 for distributing the hot product, that is to say in liquid form.
  • the gun 7 comprises a housing 8 delimited by six flat walls 9.
  • a wall has a supply opening 10; the facing wall has an outlet 11 opening into a nozzle 12.
  • An electric motor 13 controlled by an electronic variator is fixed to a wall 9.
  • the nozzle 12 and the motor 13 are positioned on the housing 8 by means of a heating support element 14.
  • the piping 6 for supplying hot-melt product 4 is linked to the supply opening 10.
  • a pipe 15 connects the outlet orifice 11 at the nozzle 12.
  • Two pressure taps 16, 17 are mounted respectively at the feed opening 10 and at the pipe outlet 15 in the nozzle 12.
  • the nozzle 12 comprises an extrusion orifice 18 hollow conical sealable by a rod 19 forming a valve and integral with a pneumatic actuating cylinder 20.
  • the housing 8 contains a gear formed by two pinions 21 and 22. The pinions 21 and 22 parallel to each other are mounted perpendicular to the orifice of exit 11.
  • the gun 7 supplies product with an indexing table 23.
  • the table 23 includes indentations 24 for molding and a cooling means 25.
  • the table 23 which includes a device 26 for setting in motion step by step is circular as shown Fig. 3 and the imprints 24 are arranged near the edge along a circular trajectory.
  • a pusher 27 makes it possible to form the imprints 2.
  • the gun 7, the pusher 27 and the gripper 28, all being movable relative to the surface 29 of the table 23, are arranged above the path of the imprints 24.
  • the installation according to the invention also comprises a gripper 28 with suction cups 29 by air suction 30, as shown in FIG. 2.
  • the gripper 28 is manipulated by a robot 31 to an articulated mechanism 32 comprising a plate 33 for receiving the element 34.
  • the articulated plate 32 being placed under an extrusion nozzle 35 connected to the piping 6.
  • a jack 36 pushes mechanism 32 to glass volumes stacked on a pallet 38.
  • the operation of the installation is as follows, the product 4 is pumped into the barrel 3 by the pumping unit 5 which supplies the gun 7 through the conduit 6.
  • the product 4 is driven towards the extrusion orifice 18 by the rotation of the pinions 21, 22 of the gear.
  • the pinions 21, 22 are driven and controlled in rotation by the motor, so the motor controls the flow.
  • the robot 31 gives the authorization to start the engine and to open the nozzle when the gun 7 is in the working position above an imprint 24, the product flows at a regulated flow rate, which allows to obtain repetitive filling of an imprint.
  • the indexing table 23 rotates one step so as to bring the impression 24 which has just been filled under the pusher 27 and the following impression under the gun 7.
  • the pusher 27 the bearing face of which can be marked, descends as shown in FIG. 4.
  • This pusher descends to the level of the impression or in the impression 24 shown in FIG. 5.
  • the pusher withdraws and the hot element 39 shown in FIG. 6, is formed.
  • the cycle ends with the closure of the nozzle and the simultaneous stop of the motor controlled by the robot and the table.
  • the cooled elements are taken out of the impressions 24 by the gripper 28 and brought to the nozzle 35 for depositing liquid product on the smooth face of the element 34; then the jack 36 pushes until the liquid face sticks the element 34 on the glass volumes.
  • the robot 31 positions and moves the gripper 28, the pusher 27 and the nozzle 35.
  • the bottom of the imprint 24 is marked in low relief and the pusher is smooth.
  • the barrel emptying device comprises a fixed pumping group 5 and a movable barrel placed on a elevating chair in accordance with the German utility model G 9420028.9 in the name of the
  • FIG. 7 differs from that of FIGS. 1 and 2 in that it does not include an automatic nozzle for depositing liquid product 4 on the elements 34, nor means for automatic transfer of these elements to the volumes 37.
  • the table 23 includes a very deep circular imprint 40 so as to form a bar of hot-melt product.
  • the installation in FIG. 7 comprises a box 41 which the robot fills with elements 34.
  • FIG. 8 shows a known glue gun 42. The bar from the imprint 40 is introduced into the glue gun 42, which allows the liquid face to be deposited on the elements 34 by melting the end of the bar.
  • Fig. 9 shows another variant of an installation for manufacturing elements according to the method of the invention.
  • This installation comprises a barrel 3 of hot-melt product 4 pumped by a pumping group 5 in a pipe 6 which fills the metal cooling tube 43, the outlet of which emerges under the stroke 44 of a serrated knife 45 so as to cut out product pellets 4 to form the elements 39 according to the invention.
  • Fig. 10 shows a variant of the step of producing the liquid face of the element 34.
  • the element 34 is brought close to a heat source 46 whose radiation 47 melts the closest face , the element 34 being made of a hot-melt material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

An apparatus including a supply (3) of hot-melt material (4), and a pump unit (5) for feeding hot-melt material (4) to a volumetric gun (7) which in turn feeds the material into a mould cavity (24) including a cooling and transfer means (28). The apparatus is useful for making packing elements (39) for parts (37) made of a non-conductive material.

Description

Procédé et installation de fabrication, de mise en place et de pose d'éléments de calage pour pièces en matériau non conducteur électriquement. Method and installation for manufacturing, installing and installing wedging elements for parts made of electrically non-conductive material.
La présente invention est relative à la fabrication, la mise en place et la pose d'éléments de calage.The present invention relates to the manufacture, installation and installation of wedging elements.
Elle concerne en premier lieu un procédé pour fabriquer, mettre en place et poser de tels éléments, en particulier du type intercalaire. Lesdits éléments constituent des intercalaires pour des pièces réalisées en matériau non conducteur électriquement.It relates firstly to a method for manufacturing, installing and installing such elements, in particular of the interlayer type. Said elements constitute spacers for parts made of electrically non-conductive material.
On connaît comme éléments intercalaires des pastilles de liège sur lesquelles il a été collé un matériau adhésif sur une face. Ces pastilles présentent l'inconvénient d'être composé de deux matériaux. De plus, le liège ne peut être mis en forme qu'une seule fois.Known as intermediate elements are cork discs on which an adhesive material has been stuck on one side. These tablets have the drawback of being made of two materials. In addition, cork can only be shaped once.
En conséquence, elles ne sont pas recyclables après usure. En outre, l'automatisation de la fabrication est difficile.Consequently, they cannot be recycled after wear. In addition, manufacturing automation is difficult.
Pour remédier à ces inconvénients et obtenir une pièce adhésive sur une face, non adhésive sur la face opposée et recyclable, l'invention a pour objet un procédé de fabrication, de mise en place et de pose d'éléments réalisés en suivant les étapes successives suivantes :To overcome these drawbacks and obtain an adhesive piece on one side, non-adhesive on the opposite side and recyclable, the invention relates to a process for manufacturing, installing and installing elements produced by following the successive steps. following:
- remplir un réservoir d'un matériau thermofusible,- fill a tank with a hot-melt material,
- fondre le matériau thermofusible,- melt the hot-melt material,
- pomper le matériau thermofusible,- pump the hot-melt material,
- extruder ledit matériau en contrôlant son débit volumétrique,- extruding said material by controlling its volumetric flow,
- remplir avec dudit matériau thermofusible au moins une empreinte de moule servant à former l'élément,filling with said hot-melt material at least one mold imprint used to form the element,
- marquer en bas-relief au moins une face de l'élément, - refroidir le matériau thermofusible de l'élément pour le solidifier,- mark in bas-relief at least one face of the element, - cool the hot-melt material of the element to solidify it,
- démouler ledit élément,- unmolding said element,
- rendre liquide la face opposée à la face marquée en bas-relief, - appliquer la face liquide de l'élément pour le faire adhérer par collage sur ladite pièce. Dans le but de supprimer l'inertie et de contrôler l'épaisseur de fusion de la face rendue liquide, l'étape de liquéfaction de la face opposée à la face marquée est réalisée par apport de matériau thermofusible fondu. Suivant d'autres caractéristiques :- make the face opposite to the face marked in low relief liquid, - apply the liquid face of the element to make it adhere by bonding to said part. With the aim of eliminating the inertia and controlling the thickness of melting of the face made liquid, the step of liquefying the face opposite to the marked face is carried out by adding molten hot-melt material. According to other characteristics:
- Le matériau thermofusible fondu est le même que celui de l'élément ;- The molten hot-melt material is the same as that of the element;
- L'étape de liquéfaction de la face opposée à la face marquée est réalisée par chauffage ; - Une dernière étape consiste à poser une autre pièce sur la face marquée de l'élément solidaire de la pièce précédente.- The liquefaction step of the face opposite to the marked face is carried out by heating; - A final step consists in placing another piece on the marked face of the element secured to the previous piece.
Pour permettre d'automatiser le procédé ci-dessus, l'invention a encore pour objet une installation du type comprenant un dispositif vide-fût recevant un réservoir de produit thermofusible, ledit réservoir étant relié à un pistolet volumétrique de pose de matériau thermofusible dans au moins une empreinte d'un moule, l'installation comportant au moins un moyen de marquage venant au contact du matériau dans l'empreinte, un moyen de refroidissement et un moyen de transfert pour sortir l'élément en vue de l'apporter au poste de réalisation de la face liquide.To allow the above process to be automated, the invention also relates to an installation of the type comprising a barrel emptying device receiving a tank of hot-melt product, said tank being connected to a volumetric spray gun for laying hot-melt material in the at least one imprint of a mold, the installation comprising at least one marking means coming into contact with the material in the imprint, a cooling means and a transfer means for removing the element in order to bring it to the station of the liquid side.
Suivant une autre caractéristique, l'installation comprend un moyen, en particulier une buse de dépose sur ledit élément refroidi d'une goutte de produit thermofusible liquide, ledit moyen de dépose relié au vide- fût étant situé en amont du pistolet volumétrique.According to another characteristic, the installation comprises a means, in particular a nozzle for depositing on said element cooled with a drop of liquid hot-melt product, said means for depositing connected to the barrel emitter being located upstream of the volumetric gun.
L'invention a également pour objet un dispositif selon lequel le moule comporte au moins une deuxième empreinte de la forme d'un barreau permettant de fabriquer des barreaux de produit thermofusible destinés à alimenter un pistolet manuel de pose de produit liquide sur une face de l'élément.The invention also relates to a device according to which the mold comprises at least a second imprint in the form of a bar making it possible to manufacture bars of hot-melt product intended to supply a manual gun for placing liquid product on one side of the 'element.
Suivant d'autres caractéristiques du dispositif : - le moule et le moyen de refroidissement sont constitués par une table tournante comprenant des empreintes disposées suivant une trajectoire circulaire, la table comportant un moyen d'avance en rotation pas à pas correspondant à 1 'espacement de chaque empreinte, le moyen de marquage étant constitué par la forme du fond de l'empreinte ou la forme de la surface d'un pousseur venant formerAccording to other characteristics of the device: - the mold and the cooling means are constituted by a rotary table comprising cavities arranged along a trajectory circular, the table comprising means for advancing in stepwise rotation corresponding to the spacing of each imprint, the marking means consisting of the shape of the bottom of the imprint or the shape of the surface of a pusher coming form
1 'empreinte ;1 fingerprint;
- le moyen de transfert est une ventouse par aspiration.- The transfer means is a suction cup.
Un exemple non limitatif de l'invention va maintenant être décrit en regard des dessins annexés sur lesquels :A nonlimiting example of the invention will now be described with reference to the appended drawings in which:
- La Fig. 1 représente schématiquement en coupe verticale une installation de fabrication de mise en place et de pose d'éléments de calage selon l'invention et les dispositifs de fabrication.- Fig. 1 schematically shows in vertical section a manufacturing installation for installing and installing wedging elements according to the invention and the manufacturing devices.
- La Fig. 2 représente schématiquement en coupe verticale, les dispositifs de mise en place et de pose d'une installation selon l'invention complétant la Fig. 1. - La Fig. 3 représente en vue de dessus, la table d'indexage selon les Fig. 1 et 2.- Fig. 2 schematically represents in vertical section, the devices for setting up and placing an installation according to the invention supplementing FIG. 1. - Fig. 3 shows in top view, the indexing table according to FIGS. 1 and 2.
- Les Fig. 4, 5 et 6 sont des vues partielles schématiques en coupe illustrant des phases de mise en forme des éléments de calage. - La Fig. 7 représente schématiquement une partie d'installation selon l'invention permettant la fabrication d'éléments de calage pour la pose manuelle vue en coupe verticale.- Figs. 4, 5 and 6 are partial schematic sectional views illustrating phases of shaping of the wedging elements. - Fig. 7 schematically represents an installation part according to the invention allowing the manufacture of wedging elements for manual laying seen in vertical section.
- La Fig. 8 représente un pistolet pour la pose manuelle de la face liquide.- Fig. 8 shows a gun for manual installation of the liquid face.
- La Fig. 9 représente une variante de dispositif de fabrication d'une installation selon l'invention.- Fig. 9 shows a variant of a device for manufacturing an installation according to the invention.
- La Fig. 10 représente une variante de l'étape du procédé de réalisation de la face liquide. L'installation représentée à la Fig. 1 comporte un dispositif vide-fût 1. Ce dispositif 1 comprend un châssis 2 sur lequel est posé un réservoir ou fût 3 rempli de produit thermofusible 4, un groupe de pompage 5 est disposé au-dessus du fût 3. Des vérins 66 ajustent le groupe de pompage 5 en fonction du niveau de la surface du produit thermofusible 4 contenu dans le fût 5. Le groupe de pompage 5 est relié par une tuyauterie 6 à un pistolet à engrenage 7 de distribution du produit chaud, c'est-à-dire sous forme liquide.- Fig. 10 shows a variant of the step of the method for producing the liquid face. The installation shown in FIG. 1 includes a barrel emptying device 1. This device 1 comprises a chassis 2 on which a tank or barrel 3 filled is placed of hot-melt product 4, a pumping group 5 is arranged above the barrel 3. Cylinders 66 adjust the pumping group 5 according to the level of the surface of the hot-melt product 4 contained in the barrel 5. The pumping group 5 is connected by a pipe 6 to a gear gun 7 for distributing the hot product, that is to say in liquid form.
Le pistolet 7 comprend un boîtier 8 délimité par six parois planes 9. Une paroi présente une ouverture d'alimentation 10 ; la paroi en vis-à-vis comporte un orifice de sortie 11 débouchant dans une buse 12. Un moteur électrique 13 commandé par un variateur électronique est fixé sur une paroi 9.The gun 7 comprises a housing 8 delimited by six flat walls 9. A wall has a supply opening 10; the facing wall has an outlet 11 opening into a nozzle 12. An electric motor 13 controlled by an electronic variator is fixed to a wall 9.
La buse 12 et le moteur 13 sont positionnés sur le boîtier 8 par l'intermédiaire d'un élément support chauffant 14. La tuyauterie 6 d'amenée de produit thermofusible 4 est liée à l'ouverture d'alimentation 10. Une canalisation 15 relie l'orifice de sortie 11 à la buse 12. Deux prises de pression 16, 17 sont montées respectivement à l'ouverture d'alimentation 10 et à la sortie canalisation 15 dans la buse 12. La buse 12 comprend un orifice d'extrusion 18 conique creux obturable par une tige 19 formant clapet et solidaire d'un vérin de manoeuvre pneumatique 20. Le boîtier 8 contient un engrenage formé de deux pignons 21 et 22. Les pignons 21 et 22 parallèles entre eux sont montés perpendiculairement à l'orifice de sortie 11.The nozzle 12 and the motor 13 are positioned on the housing 8 by means of a heating support element 14. The piping 6 for supplying hot-melt product 4 is linked to the supply opening 10. A pipe 15 connects the outlet orifice 11 at the nozzle 12. Two pressure taps 16, 17 are mounted respectively at the feed opening 10 and at the pipe outlet 15 in the nozzle 12. The nozzle 12 comprises an extrusion orifice 18 hollow conical sealable by a rod 19 forming a valve and integral with a pneumatic actuating cylinder 20. The housing 8 contains a gear formed by two pinions 21 and 22. The pinions 21 and 22 parallel to each other are mounted perpendicular to the orifice of exit 11.
Le pistolet 7 alimente en produit une table d'indexage 23. La table 23 comprend des empreintes 24 pour le moulage et un moyen de refroidissement 25. La table 23 qui comprend un dispositif 26 de mise en mouvement pas à pas est circulaire comme le représente la Fig. 3 et les empreintes 24 sont disposées près du bord selon une trajectoire circulaire. Un pousseur 27 permet de former les empreintes 2 .The gun 7 supplies product with an indexing table 23. The table 23 includes indentations 24 for molding and a cooling means 25. The table 23 which includes a device 26 for setting in motion step by step is circular as shown Fig. 3 and the imprints 24 are arranged near the edge along a circular trajectory. A pusher 27 makes it possible to form the imprints 2.
Le pistolet 7, le pousseur 27 et le préhenseur 28, tous étant mobiles par rapport à la surface 29 de la table 23, sont disposés au-dessus de la trajectoire des empreintes 24.The gun 7, the pusher 27 and the gripper 28, all being movable relative to the surface 29 of the table 23, are arranged above the path of the imprints 24.
L'installation selon l'invention comprend également un préhenseur 28 à ventouses 29 par aspiration d'air 30, comme le représente la Fig. 2. Le préhenseur 28 est manipulé par un robot 31 jusqu'à un mécanisme articulé 32 comportant un plateau 33 de réception de l'élément 34. Le plateau articulé 32 étant placé sous une buse d'extrusion 35 reliée à la tuyauterie 6. Un vérin 36 pousse le mécanisme 32 jusqu'à des volumes en verre empilés sur une palette 38.The installation according to the invention also comprises a gripper 28 with suction cups 29 by air suction 30, as shown in FIG. 2. The gripper 28 is manipulated by a robot 31 to an articulated mechanism 32 comprising a plate 33 for receiving the element 34. The articulated plate 32 being placed under an extrusion nozzle 35 connected to the piping 6. A jack 36 pushes mechanism 32 to glass volumes stacked on a pallet 38.
Le fonctionnement de l'installation est le suivant, le produit 4 est pompé dans le fût 3 par le groupe de pompage 5 qui alimente le pistolet 7 par le conduit 6. Le produit 4 est entraîné vers l'orifice d'extrusion 18 par la rotation des pignons 21, 22 de l'engrenage. Les pignons 21, 22 sont entraînés et contrôlés en rotation par le moteur, donc le moteur contrôle le débit. Le robot 31 donne l'autorisation de mise en route du moteur et d'ouverture de la buse quand le pistolet 7 est en position de travail au-dessus d'une empreinte 24, le produit s'écoule à débit régulé, ce qui permet d'obtenir le remplissage répétitif d'une empreinte. Puis la table d'indexage 23 tourne d'un pas de manière à amener l'empreinte 24 qui vient d'être remplie sous le pousseur 27 et l'empreinte suivante sous le pistolet 7.The operation of the installation is as follows, the product 4 is pumped into the barrel 3 by the pumping unit 5 which supplies the gun 7 through the conduit 6. The product 4 is driven towards the extrusion orifice 18 by the rotation of the pinions 21, 22 of the gear. The pinions 21, 22 are driven and controlled in rotation by the motor, so the motor controls the flow. The robot 31 gives the authorization to start the engine and to open the nozzle when the gun 7 is in the working position above an imprint 24, the product flows at a regulated flow rate, which allows to obtain repetitive filling of an imprint. Then the indexing table 23 rotates one step so as to bring the impression 24 which has just been filled under the pusher 27 and the following impression under the gun 7.
A ce moment le pousseur 27 dont la face d'appui peut être marquée, descend comme le représente la Fig. 4. Ce pousseur descend à l'affleurement de l'empreinte ou dans l'empreinte 24 représentée à la Fig. 5. Ensuite le pousseur se retire et l'élément chaud 39 représenté à la Fig. 6, est formé. Le cycle se termine par la fermeture de la buse et l'arrêt simultané du moteur commandé par le robot et de la table. Après plusieurs étapes du mouvement pas à pas de la table 23, les éléments refroidis sont sortis des empreintes 24 par le préhenseur 28 et apportés jusqu'à la buse 35 de dépose de produit liquide sur la face lisse de l'élément 34 ; puis le vérin 36 pousse jusqu'à collage de la face liquide l'élément 34 sur les volumes de verre.At this moment the pusher 27, the bearing face of which can be marked, descends as shown in FIG. 4. This pusher descends to the level of the impression or in the impression 24 shown in FIG. 5. Then the pusher withdraws and the hot element 39 shown in FIG. 6, is formed. The cycle ends with the closure of the nozzle and the simultaneous stop of the motor controlled by the robot and the table. After several stages of the step-by-step movement of the table 23, the cooled elements are taken out of the impressions 24 by the gripper 28 and brought to the nozzle 35 for depositing liquid product on the smooth face of the element 34; then the jack 36 pushes until the liquid face sticks the element 34 on the glass volumes.
Le robot 31 positionne et déplace le préhenseur 28, le pousseur 27 et la buse 35.The robot 31 positions and moves the gripper 28, the pusher 27 and the nozzle 35.
En variante le fond de l'empreinte 24 est marqué en bas relief et le pousseur est lisse.As a variant, the bottom of the imprint 24 is marked in low relief and the pusher is smooth.
Dans une deuxième variante le dispositif vide-fût comporte un groupe de pompage 5 fixe et un fût mobile disposé sur une chaise élévatπce de manière conforme au modèle d'utilité allemand G 9420028.9 au nom de laIn a second variant, the barrel emptying device comprises a fixed pumping group 5 and a movable barrel placed on a elevating chair in accordance with the German utility model G 9420028.9 in the name of the
Demanderesse.Applicant.
L'installation représentée à la Fig. 7 diffère de celle des Fig. 1 et 2 en ce qu'elle ne comporte pas de buse automatique de dépôt de produit liquide 4 sur les éléments 34 , ni des moyens de transfert automatique de ces éléments sur les volumes 37.The installation shown in FIG. 7 differs from that of FIGS. 1 and 2 in that it does not include an automatic nozzle for depositing liquid product 4 on the elements 34, nor means for automatic transfer of these elements to the volumes 37.
Les références correspondantes à celles des figures précédentes ont été conservées sur la Fig. 7. La table 23 comprend une empreinte circulaire très profonde 40 de manière à former un barreau de produit thermofusible. A la différence de l'installation précédente, l'installation de la Fig. 7 comprend une caisse 41 que le robot remplit d'éléments 34. La Fig. 8 représente un pistolet à colle 42 connu. Le barreau provenant de l'empreinte 40 est introduit dans le pistolet à colle 42, ce qui permet de déposer la face liquide sur les éléments 34 en faisant fondre l'extrémité du barreau.The references corresponding to those of the preceding figures have been preserved in FIG. 7. The table 23 includes a very deep circular imprint 40 so as to form a bar of hot-melt product. Unlike the previous installation, the installation in FIG. 7 comprises a box 41 which the robot fills with elements 34. FIG. 8 shows a known glue gun 42. The bar from the imprint 40 is introduced into the glue gun 42, which allows the liquid face to be deposited on the elements 34 by melting the end of the bar.
La Fig. 9 représente une autre variante d'installation de fabrication d'éléments selon le procédé de 1 'invention.Fig. 9 shows another variant of an installation for manufacturing elements according to the method of the invention.
Cette installation comprend un fût 3 de produit thermofusible 4 pompé par un groupe de pompage 5 dans une tuyauterie 6 qui remplit le tube métallique de refroidissement 43 dont la sortie débouche sous la course 44 d'un couteau cranté 45 de manière à découper des pastilles de produit 4 pour former les éléments 39 selon l'invention.This installation comprises a barrel 3 of hot-melt product 4 pumped by a pumping group 5 in a pipe 6 which fills the metal cooling tube 43, the outlet of which emerges under the stroke 44 of a serrated knife 45 so as to cut out product pellets 4 to form the elements 39 according to the invention.
La Fig. 10 représente une variante de l'étape de réalisation de la face liquide de l'élément 34. Dans cette variante, l'élément 34 est apporté à proximité d'une source de chaleur 46 dont le rayonnement 47 fait fondre la face la plus proche, l'élément 34 étant constitué d'un matériau thermofusible. Fig. 10 shows a variant of the step of producing the liquid face of the element 34. In this variant, the element 34 is brought close to a heat source 46 whose radiation 47 melts the closest face , the element 34 being made of a hot-melt material.

Claims

REVENDICATIONS
1.- Procédé de fabrication, de mise en place et de pose d'élément de calage (34) pour pièces (37) en matériau non conducteur électriquement, ledit élément étant particulièrement du type intercalaire, caractérisé en ce qu'il comprend les étapes successives suivantes :1.- A method of manufacturing, placing and installing a wedging element (34) for parts (37) made of electrically non-conductive material, said element being particularly of the intermediate type, characterized in that it comprises the steps following successive:
- remplir un réservoir (3) d'un matériau thermofusible (4) ,- fill a reservoir (3) with a hot-melt material (4),
- fondre le matériau thermofusible,- melt the hot-melt material,
- pomper le matériau thermofusible, - extruder ledit matériau en contrôlant son débit volumétrique,- pumping the hot-melt material, - extruding said material by controlling its volumetric flow,
- remplir avec dudit matériau thermofusible au moins une empreinte (24) de moule servant à former l'élément (39) , - marquer en bas-relief au moins une face de 1 'élément,- fill with said hot-melt material at least one mold imprint (24) used to form the element (39), - mark in bas-relief at least one face of the element,
- refroidir le matériau thermofusible (4) de l'élément pour le solidifier,- cooling the hot-melt material (4) of the element to solidify it,
- démouler ledit élément, - rendre liquide la face opposée à la face marquée en bas-relief,- unmolding said element, - rendering liquid the face opposite to the face marked in bas-relief,
- appliquer la face liquide de l'élément pour le faire adhérer par collage sur ladite pièce (37) .- Apply the liquid side of the element to make it adhere by gluing on said part (37).
2. - Procédé selon la revendication 1 , dans lequel l'étape de liquéfaction de la face opposée à la face marquée est réalisée par apport de matériau thermofusible fondu.2. - Method according to claim 1, wherein the step of liquefying the face opposite the marked face is carried out by adding molten hot melt material.
3.- Procédé selon la revendication précédente, dans lequel le matériau thermofusible fondu (4) est le même que celui de l'élément (39) .3.- Method according to the preceding claim, wherein the molten hot-melt material (4) is the same as that of the element (39).
4.- Procédé selon la revendication 1 dans lequel l'étape de liquéfaction de la face opposée à la face marquée est réalisée par chauffage.4.- Method according to claim 1 wherein the step of liquefying the face opposite to the marked face is carried out by heating.
5.- Procédé selon l'une des revendications précédentes, comprenant une dernière étape consistant à poser une autre pièce sur la face marquée de l'élément solidaire de la pièce précédente. 5.- Method according to one of the preceding claims, comprising a last step of placing another piece on the marked face of the element integral with the previous piece.
6.- Installation permettant la mise en oeuvre du procédé selon l'une des revendications précédentes, du type comprenant un dispositif vide-fût (1) recevant un réservoir (3) de produit thermofusible (4) , ledit réservoir étant relié à un pistolet volumétrique (7) de pose de matériau thermofusible (4) dans au moins une empreinte (24) d'un moule, l'installation comportant au moins un moyen de marquage venant au contact du matériau dans l'empreinte, un moyen de refroidissement (25) et un moyen de transfert (28) pour sortir l'élément en vue de l'apporter au poste de réalisation de la face liquide.6.- Installation allowing the implementation of the method according to one of the preceding claims, of the type comprising a barrel emptying device (1) receiving a reservoir (3) of hot-melt product (4), said reservoir being connected to a gun volumetric (7) for laying hot-melt material (4) in at least one cavity (24) of a mold, the installation comprising at least one marking means coming into contact with the material in the cavity, a cooling means ( 25) and a transfer means (28) for removing the element in order to bring it to the station for producing the liquid face.
7.- Installation selon la revendication 6, comprenant un moyen, en particulier une buse (35) de dépose sur ledit élément refroidi d'une goutte de produit thermofusible liquide, ledit moyen de dépose relié au vide- fût étant situé en amont du pistolet volumétrique.7.- Installation according to claim 6, comprising means, in particular a nozzle (35) for depositing on said cooled element a drop of liquid hot-melt product, said depositing means connected to the barrel being located upstream of the gun volumetric.
8.- Installation selon la revendication 6 ou 7 dans laquelle le moule comporte au moins une deuxième empreinte (40) de la forme d'un barreau permettant de fabriquer des barreaux de produit thermofusible destinés à alimenter un pistolet manuel (42) de pose de produit liquide sur une face de l'élément.8.- Installation according to claim 6 or 7 wherein the mold comprises at least a second cavity (40) in the form of a bar for manufacturing bars of hot melt product intended to feed a manual gun (42) for laying liquid product on one side of the element.
9.- Installation selon l'une quelconque des revendications 6 à 8 dans laquelle le moule et le moyen de refroidissement sont constitués par une table tournante (23) comprenant des empreintes (24) disposées suivant une trajectoire circulaire, la table comportant un moyen d'avance en rotation pas à pas correspondant à l'espacement de chaque empreinte, le moyen de marquage étant constitué par la forme du fond de l'empreinte (24) ou la forme de la surface d'un pousseur venant former 1 'empreinte.9.- Installation according to any one of claims 6 to 8 wherein the mold and the cooling means are constituted by a rotary table (23) comprising cavities (24) arranged in a circular path, the table comprising a means d 'stepwise rotation advance corresponding to the spacing of each imprint, the marking means consisting of the shape of the bottom of the imprint (24) or the shape of the surface of a pusher coming to form the imprint.
10.- Installation selon l'une quelconque des revendications 6 à 9 dans laquelle le moyen de transfert (28) est au moins une ventouse (29) par aspiration. 10.- Installation according to any one of claims 6 to 9 wherein the transfer means (28) is at least one suction cup (29) by suction.
EP96904132A 1995-02-17 1996-02-13 Method and apparatus for making, delivering and positioning packing elements for parts made of an electrically non-conductive material Withdrawn EP0809602A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9502019A FR2730664B1 (en) 1995-02-17 1995-02-17 PROCESS AND INSTALLATION FOR MANUFACTURING, PLACING AND LAYING SETTING ELEMENTS FOR PARTS OF ELECTRICALLY NON-CONDUCTIVE MATERIAL
FR9502019 1995-02-17
PCT/FR1996/000234 WO1996025357A1 (en) 1995-02-17 1996-02-13 Method and apparatus for making, delivering and positioning packing elements for parts made of an electrically non-conductive material

Publications (1)

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EP0809602A1 true EP0809602A1 (en) 1997-12-03

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EP96904132A Withdrawn EP0809602A1 (en) 1995-02-17 1996-02-13 Method and apparatus for making, delivering and positioning packing elements for parts made of an electrically non-conductive material

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EP (1) EP0809602A1 (en)
JP (1) JPH10504249A (en)
KR (1) KR19980702194A (en)
AU (1) AU4834396A (en)
FR (1) FR2730664B1 (en)
WO (1) WO1996025357A1 (en)

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Publication number Priority date Publication date Assignee Title
EP0999024A1 (en) * 1998-11-06 2000-05-10 Christopher James Whiteley Improvements in and relating to compression moulding

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Publication number Priority date Publication date Assignee Title
NL126305C (en) * 1962-07-19 1900-01-01
NL7208789A (en) * 1971-07-05 1973-01-09
DE3911741C2 (en) * 1989-04-11 1994-09-22 Licentia Gmbh Cooling unit
JPH05154859A (en) * 1991-12-06 1993-06-22 Japan Crown Cork Co Ltd Synthetic resin material feeder and sealing linear forming system
DE9420028U1 (en) * 1994-12-14 1995-02-09 Seva, Chalon-Sur-Saone Drum lifter for products to be processed

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Title
See references of WO9625357A1 *

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FR2730664A1 (en) 1996-08-23
FR2730664B1 (en) 1997-05-30
WO1996025357A1 (en) 1996-08-22
AU4834396A (en) 1996-09-04
JPH10504249A (en) 1998-04-28
KR19980702194A (en) 1998-07-15

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