EP0016680A1 - Automatic sand-blasting device for the interior of large objects and equipment comprising such a device - Google Patents

Automatic sand-blasting device for the interior of large objects and equipment comprising such a device Download PDF

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Publication number
EP0016680A1
EP0016680A1 EP80400301A EP80400301A EP0016680A1 EP 0016680 A1 EP0016680 A1 EP 0016680A1 EP 80400301 A EP80400301 A EP 80400301A EP 80400301 A EP80400301 A EP 80400301A EP 0016680 A1 EP0016680 A1 EP 0016680A1
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EP
European Patent Office
Prior art keywords
vehicle
projection
movement
projection members
treated
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.)
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EP80400301A
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German (de)
French (fr)
Inventor
Bernard Sandillon
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.)
LUTELEC LUCHAIRE EQUIPEMENT
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LUTELEC LUCHAIRE EQUIPEMENT
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Publication date
Priority claimed from FR7905960A external-priority patent/FR2450668A1/en
Application filed by LUTELEC LUCHAIRE EQUIPEMENT filed Critical LUTELEC LUCHAIRE EQUIPEMENT
Publication of EP0016680A1 publication Critical patent/EP0016680A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks

Definitions

  • the invention relates to an automatic shot blasting device for the interior of large parts comprising projection members driven by an oscillating movement and means for relative displacement of the projection members and the part to be treated, and an installation implement such a device.
  • French Patent No. 2,001,398 describes a machine comprising a shot blasting head capable of moving along two axes of coordinates and also of moving away from or approaching the surface to adjust the degree of shot blasting.
  • a machine only allows the treatment of free surfaces, that is to say of surfaces allowing the approach of the overhead crane or of the lifting machine from which the machine is suspended.
  • the interiors are therefore necessarily treated in a conventional manner, that is to say by operators, provided with lan these shot blasting, working at the same time.
  • the invention aims to produce a device and an automatic shot blasting installation capable of treating the interior walls of large pieces, such as containers or storage volumes preferably having a long length relative to their section.
  • the automatic shot peening device for the interior of large parts comprising projection members driven by an oscillating movement and means for relative movement of the projection members and the surface to be treated, is remarkable in that the means of displacement carrying the projection members, consist of a set of at least two vehicles capable of moving orthogonally to one another.
  • FIG. 1 represents a shot peening installation using a device according to the invention
  • Figure 2 is a sectional view of the installation according to Figure 1
  • Figures 3 and 4 are schematic top and side views of the device in a shot peening position of a wall perpendicular to its longitudinal movement
  • Figures 5 and 6 are schematic top and side views of the device in a blasting position of side walls
  • Figure 7 is a front view of the device in the position of Figures 5 and 6
  • Figure 8 is an elevational view of a second embodiment of a blasting device according to the invention
  • Figure 9 is a top view of the device of Figure 8
  • FIG. 10 is a right view of the device in FIG. 8.
  • FIG. 1 represents a shot peening installation using the internal peening device 1 according to the invention.
  • the part to be treated 2 is placed in a dust-tight enclosure 3.
  • the part is introduced by one or other of the end doors 4, 5, using support and displacement means consisting, for example, of a carriage on rail (not shown).
  • the installation can also be equipped with an external shot blasting device 6, consisting, for example, of a gantry fitted with shot blasting nozzles moving in front of the walls of the room.
  • the device is more particularly suited to the treatment of containers for the transport of goods, these containers being in the form of a rectangular enclosure (FIG.
  • the floor consists of longitudinal members connecting the lateral sides, angles 11 arranged longitudinally on the ends of the longitudinal members and a platform held by angles.
  • the walls and ceilings are generally formed of panels carrying stiffening corrugations.
  • the internal shot blasting device 1 comprises displacement means consisting inter alia of a set of two vehicles 12 and 13 with orthogonal movements.
  • the vehicle 12 moves longitudinally in the container along the angles 11 acting as a raceway.
  • This vehicle 12 carries means 14 allowing the orthogonal movement of the second vehicle 13.
  • these means 14 consist of a guide device supported by the frame 15 containing the vehicle advance mechanism 12 and optionally the vehicle movement control 13.
  • this device guide consists of cooperating rails and rollers.
  • the power supply and shot blasting nozzles are provided by flexible conduits in a manner known per se.
  • the vehicle 13 ( Figures 3 to 7) carries the projection members consisting of at least two columns 16 and 17 of shot blasting nozzles 18 and 19.
  • the nozzles are connected to angular displacement means producing an alternating oscillatory movement in a plane vertical.
  • These means can be similar to those described in the aforementioned patent application, and consist at least in part of a crank connecting rod mechanism acting directly or indirectly on the end of levers integral with the nozzles.
  • the neighboring nozzles are connected to each other by articulated levers driven by a crank rod mechanism, which allows synchronization of the movement of the projection members with respect to each other.
  • the distance from the nozzles to the wall is such that the zone swept vertically by the jet of abrasive from a nozzle, partially covers the zone swept by the jet from the nozzle situated just above or below.
  • the device shown in position A shot peening of the bottoms, shows the vehicle 12 placed at a determined distance from the bottom corresponding to satisfactory treatment.
  • the vehicle 13 carrying the projection members is placed at one end of the device 14 for guiding the orthogonal movement carried by the vehicle 12, that is to say to effect a transverse movement relative to the axis of the part to be treated .
  • the speed of the vehicle 13 is synchronized with the vertical oscillation movement of the nozzles for obtain an overlap of the scanned areas.
  • each of the passes being made with a different orientation of the nozzles in the horizontal plane, or to use nozzles with two jets, the angle between the jets being a function of the profile to be shot blasted.
  • the device shown in position B ( Figures 1, 5 and 6) has been advanced near the bottom and the nozzle columns 16 and 17 have been rotated in a position approximately orthogonal to that of position A, so as to present themselves in front of the side panels at an angle close to 90 °.
  • the vehicle 13 carrying the columns is brought into a fixed position in the center of the vehicle 12.
  • the position of the vehicle 12 is defined relative to the bottom 7, so that the axis of the jets is centered in the angle formed by the bottom and the side panels.
  • the means for orienting the nozzles are constituted, for example, by jacks 20 acting directly or indirectly on the projection members grouped in columns 16 and 17 containing the means for vertical angular displacement of the nozzles and mounted movable in a horizontal plane.
  • the columns are in the form of an elongated volume movable in rotation about a vertical axis disposed at each end of the vehicle 13.
  • Ceiling gearing is made possible by the utility sation of nozzles 21 and 22 with a substantially vertical axis carried, for example, by the chassis 15 of the vehicle 12.
  • the nozzles are connected to angular displacement means producing an oscillatory movement in a plane substantially perpendicular to the panel forming the ceiling and to longitudinal displacement means 23 arranged in the frame 15 and represented by a rail and roller device.
  • the displacement means 23 are put into action after placing the vehicle 13 in the middle position of the vehicle 12.
  • the nozzles 18, 19, 21 and 22 are fixed so that the axis of the abrasive jets meet the panels to be treated according to lines located in the same plane.
  • Figure 7 gives the average positions of the nozzles for a device comprising two columns 16 and 17 of two nozzles 18 and 19 working on the side panels and two nozzles 21 and 22 working on the ceiling panel.
  • the extreme positions of the axes of the nozzles have been shown in dashed lines.
  • Means for controlling the speed of movement of the vehicle 12 with respect to the wall to be treated and with respect to the speed of angular displacement of the shot blasting members are provided in the frame 15 and act on the motor ensuring the longitudinal movement of the vehicle.
  • FIGS. 1 and 2 comprises on one of its sides a lateral extension 3B capable of receiving means for positioning the device 1.
  • These means consist of a carriage 24 moving on rails 25 substantially perpendicular to the rails forming track 27 of the carriage 28 supporting the container to be treated.
  • the carriage 24 carries perpendicularly to its direction of movement of the guide members 26 on which the blasting device 1 is placed.
  • the movement of the carriage 24 is ensured by any suitable means.
  • Positioning means (not shown) stop the stroke of the carriage 24 and locks it in a position such that the guide members 26 are in the extension of the raceway 11 provided in the part to be treated and along which the device moves shot blasting 1.
  • the locking of the carriage 24 controls the longitudinal movement of movement of the device 1 which, depending on the program of operations chosen, can execute a first shot blasting pass by going towards the bottom 7 of the container, where it will stop before return to the fixed distance provided for shot peening the bottom, the vehicle 13 then moving perpendicular to the raceway 11.
  • a second pass can be provided at the end of which the vehicle 12 resumes the position shown in B near the bottom and sets out again towards the carriage 24 on which it is placed at the end of the operation.
  • FIG. 8 A second exemplary embodiment of an internal shot blasting device according to the invention is shown in FIG. 8.
  • the vehicle moving longitudinally in the part to be shot blasted consists of a box 29 fitted with wheels 30 moving on a raceway constituted, for example, by angles fixed on the plane expensive container or part of the floor.
  • the movement of the vehicle is controlled by a self-propelled group (not shown) acting on the wheels and carried by the box.
  • a second motor also arranged in or on the box, allows the control of the second vehicle 31.
  • the end of the first vehicle 29 carries a vertical axis which, in the embodiment shown, is formed by a frame 32 on which are fixed two bearings 33 and 34 carrying a shaft 35.
  • the lower end of this shaft carries drive means 36, for example a toothed wheel, cooperating with control means, for example a chain 37 driven by the second previously cited engine.
  • the upper end of the shaft is fixed to the second vehicle 31 which consists of a frame carrying at its ends two parallel branches.
  • the second vehicle has the shape of an H with uneven branches offset in the plane of the figure, and consists of a central frame 38, carrying the clamping rings 39 of the shaft 35 , to ends of which are fixed two self-supporting boxes 40 and 41.
  • the box 40 carries projection members whose mean axis is directed horizontally and the box 41, projection members whose mean axis is directed vertically.
  • the box 40 carries two groups 42 and 43 of projection members made up of two double jet nozzles 44.
  • nozzles are fixed to the end of a shaft 45, perpendicular to the axis of the box 40, which can rotate in two bearings 46 fixed in the upper part of the box.
  • fixed motion transmission means consisting of a toothed wheel 47 cooperating with a chain 48 itself meshing with means 49 provided at the end of a shaft 50 carrying the second group 43 of nozzles 44 and rotating in a first bearing 51A, disposed at the bottom of the box.
  • the shaft 50 extends towards the second branch 41 in which it is held by a second bearing 51B.
  • the end of the shaft 50 entering the box 41 carries motion transmission means consisting, like the others, of a toothed wheel 52 meshing with a chain 53 which transmits the movement to a toothed wheel 54 fixed to the end of an axis 55 movable in rotation in the bearings 56 fixed to the upper part of the box 41.
  • the end of the axis 55 carries projection members whose mean axis is directed vertically. These members consist of a group 57 of two nozzles 44 with double jet. The angular displacement movement of these three groups of nozzles is obtained by means producing an alternating oscillatory movement in a vertical plane.
  • the device consist of a pneumatic cylinder 58 with alternating stroke arranged in the box 40 whose piston rod drives, for example, a cam 59 secured to the shaft 45.
  • the movement is transmitted to all of the nozzles via wheel 47, chain 48, wheel 49, shaft 50, wheel 52, chain 53, wheel 54 and shaft 55.
  • the mean axes of the projection members of the two branches of the vehicle 31 are substantially perpendicular and contained in planes parallel to each other.
  • the device allows shot blasting only on one side of the container and half of the ceiling.
  • the operating mode of this device is as follows: the vehicle 29 is introduced, as described for vehicle 1 of the previous example, into the container, the second vehicle 31 being rotated so that the axis of its horizontal branch is in the axis of the container, and shot blasting is triggered.
  • the vehicle 29 stops and the vehicle 31 turns around the axis 35 while the jets of abrasives from the nozzles sweep the bottom.
  • the scanning time is sufficient for the shot peening to be properly carried out during the movement.
  • the vehicle 31 has come into a 180 ° position by relative to its starting position, the vehicle 29 moves back towards the entrance of the container, the nozzles blasting the other side of the container and the remaining half of the ceiling.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Spray Control Apparatus (AREA)

Abstract

Device for shot blasting of the inside of large pieces which is formed from two vehicles (12, 13). One (12) of the vehicles is displaced longitudinally in the piece, whilst the second (13), carried by the first, is capable of being displaced perpendicularly. The second vehicle carries the lateral blasting nozzles (4) which oscillate in a vertical plane. These nozzles form columns which can be oriented into positions which are orthogonal to the surface to be treated. Vertically directed nozzles make it possible to blast the ceiling. A carriage (24) positions the device in front of the piece (2) to be treated. The movements of the vehicles and of the nozzles are synchronised. <IMAGE>

Description

L'invention concerne un dispositif de grenaillage automatique pour l'intérieur de pièces de grandes dimensions comportant des organes de projection animés d'un mouvement oscillant et des moyens de déplacement relatif des organes de projection et de la pièce à traiter, et une installation mettant en oeuvre un tel dispositif.The invention relates to an automatic shot blasting device for the interior of large parts comprising projection members driven by an oscillating movement and means for relative displacement of the projection members and the part to be treated, and an installation implement such a device.

On connaît des dispositifs de grenaillage automatique adaptés au traitement de surfaces de grandes dimensions, telles que les faces externes des carénages de bateaux, de grands réservoirs.Automatic peening devices are known which are suitable for treating large surfaces, such as the external faces of boat fairings and large tanks.

Le brevet français n° 2 001 398 décrit une machine comprenant une tête de grenaillage susceptible de se déplacer selon deux axes de coordonnées et aussi de s'éloigner ou de s'approcher de la surface pour régler le degré de grenaillage. Une telle machine ne permet que le traitement de surfaces libres, c'est-à-dire de surfaces permettant l'approche du pont roulant ou de l'engin de levage auquel est suspendue la machine.French Patent No. 2,001,398 describes a machine comprising a shot blasting head capable of moving along two axes of coordinates and also of moving away from or approaching the surface to adjust the degree of shot blasting. Such a machine only allows the treatment of free surfaces, that is to say of surfaces allowing the approach of the overhead crane or of the lifting machine from which the machine is suspended.

Les intérieurs sont donc nécessairement traités de manière classique, c'est-à-dire par des opérateurs, munis de lances de grenaillage, travaillant en même temps.The interiors are therefore necessarily treated in a conventional manner, that is to say by operators, provided with lan these shot blasting, working at the same time.

L'invention vise à la réalisation d'un dispositif et d'une installation de grenaillage automatique susceptible de traiter les parois intérieures de pièces de grandes dimensions, telles que conteneurs ou volumes de stockage présentant de préférence une longueur importante par rapport à leur section.The invention aims to produce a device and an automatic shot blasting installation capable of treating the interior walls of large pieces, such as containers or storage volumes preferably having a long length relative to their section.

Le dispositif de grenaillage automatique pour l'intérieur de pièces de grandes dimensions comportant des organes de projection animés d'un mouvement oscillant et des moyens de déplacement relatif des organes de projection et de la surface à traiter, est remarquable en ce que les moyens de déplacement portant les organes de projection, sont constitués d'un ensemble d'au moins deux véhicules susceptibles de se déplacer orthogonalement l'un par rapport à l'autre.The automatic shot peening device for the interior of large parts comprising projection members driven by an oscillating movement and means for relative movement of the projection members and the surface to be treated, is remarkable in that the means of displacement carrying the projection members, consist of a set of at least two vehicles capable of moving orthogonally to one another.

La description et les figures données ci-après à titre d'exemple permettront de comprendre comment l'invention peut être réalisée.The description and the figures given below by way of example will make it possible to understand how the invention can be implemented.

La figure 1 représente une installation de grenaillage mettant en oeuvre un dispositif selon l'invention; la figure 2 est une vue en coupe de l'installation selon la figure 1; les figures 3 et 4 sont des vues schématiques de dessus et de côté du dispositif dans une position de grenaillage d'une paroi perpendiculaire à son déplacement longitudinal; les figures 5 et 6 sont des vues schématiques de dessus et de côté du dispositif dans une position de grenaillage de parois latérales; la figure 7 est une vue de face du dispositif dans la position des figures 5 et 6; la figure 8 est une vue en élévation d'une deuxième forme de réalisation d'un dispositif de grenaillage selon l'invention; la figure 9 est une vue de dessus du dispositif de la figure 8; la figure 10 est une vue de droite du dispositif de la figure 8.FIG. 1 represents a shot peening installation using a device according to the invention; Figure 2 is a sectional view of the installation according to Figure 1; Figures 3 and 4 are schematic top and side views of the device in a shot peening position of a wall perpendicular to its longitudinal movement; Figures 5 and 6 are schematic top and side views of the device in a blasting position of side walls; Figure 7 is a front view of the device in the position of Figures 5 and 6; Figure 8 is an elevational view of a second embodiment of a blasting device according to the invention; Figure 9 is a top view of the device of Figure 8; FIG. 10 is a right view of the device in FIG. 8.

La figure 1 représente une installation de grenaillage mettant en oeuvre le dispositif de grenaillage intérieur 1 selon l'invention. Comme il est classique dans les installations de sablage ou de grenaillage, la pièce à traiter 2 est placée dans une enceinte 3 étanche aux poussières. La pièce est introduite par l'une ou l'autre des portes d'extrémité 4, 5, à l'aide de moyens supports et de déplacement constitués, par exemple,d'un chariot sur rail (non représenté). L'installation peut être équipée, en outre, d'un dispositif de grenaillage extérieur 6, constitué, par exemple, d'un portique équipé de buses de grenaillage se déplaçant devant les parois de la pièce. Selon la forme de réalisation qui va être décrite, le dispositif est plus particulièrement adapté au traitement des conteneurs pour le transport des marchandises, ces conteneurs se présentant sous la forme d'une enceinte parallélépipédique (figure 2) constituée d'un fond 7, de deux côtés latéraux 8, 9 et d'un plafond 10. Le plancher est constitué de longerons reliant les côtés latéraux, de cornières 11 disposées longitudinalement sur les extrémités des longerons et d'une plate-forme maintenue par des cornières. Les parois et plafonds sont formés généralement de panneaux portant des ondulations de raidissage.FIG. 1 represents a shot peening installation using the internal peening device 1 according to the invention. As is conventional in sandblasting or shot blasting installations, the part to be treated 2 is placed in a dust-tight enclosure 3. The part is introduced by one or other of the end doors 4, 5, using support and displacement means consisting, for example, of a carriage on rail (not shown). The installation can also be equipped with an external shot blasting device 6, consisting, for example, of a gantry fitted with shot blasting nozzles moving in front of the walls of the room. According to the embodiment which will be described, the device is more particularly suited to the treatment of containers for the transport of goods, these containers being in the form of a rectangular enclosure (FIG. 2) consisting of a bottom 7, of two lateral sides 8, 9 and a ceiling 10. The floor consists of longitudinal members connecting the lateral sides, angles 11 arranged longitudinally on the ends of the longitudinal members and a platform held by angles. The walls and ceilings are generally formed of panels carrying stiffening corrugations.

Le dispositif de grenaillage intérieur 1, selon un premier exemple de réalisation, comporte des moyens de déplacement constitués entre autres d'un ensemble de deux véhicules 12 et 13 à mouvements orthogonaux. Le véhicule 12 se déplace longitudinalement dans le conteneur le long des cornières 11 faisant office de chemin de roulement. Ce véhicule 12 porte des moyens 14 permettant le déplacement orthogonal du deuxième véhicule 13. Selon l'exem- ple représenté figures 1 et 2, ces moyens 14 consistent en un dispositif de guidage supporté par le bâti 15 contenant le mécanisme d'avance du véhicule 12 et éventuellement de commande de déplacement du véhicule 13. Selon un exemple de réalisation, ce dispositif de guidage est constitué de rails et de galets coopérants. L'alimentation électrique et des buses de grenaillage est assurée par des conduits souples d'une manière en soi connue. Le véhicule 13 (figures 3 à 7) porte les organes de projection constitués d'au moins deux colonnes 16 et 17 de buses de grenaillage 18 et 19. Les buses sont reliées à des moyens de déplacement angulaire produisant un mouvement oscillatoire alternatif dans un plan vertical. Ces moyens peuvent être semblables à ceux décrits dans la demande de brevet précédemment citée, et être constitués au moins en partie d'un mécanisme bielle manivelle agissant directement ou indirectement sur l'extrémité de leviers solidaires des buses. Les buses voisines.sont reliées entre elles par des leviers articulés entraînés par un mécanisme bielle manivelle, ce qui permet une synchronisation du déplacement des organes de projection les uns par rapport aux autres. La distance des buses à la paroi est telle que la zone balayée verticalement par le jet d'abrasif d'une buse, recouvre partiellement la zone balayée par le jet de la buse située juste au-dessus ou au-dessous.The internal shot blasting device 1, according to a first embodiment, comprises displacement means consisting inter alia of a set of two vehicles 12 and 13 with orthogonal movements. The vehicle 12 moves longitudinally in the container along the angles 11 acting as a raceway. This vehicle 12 carries means 14 allowing the orthogonal movement of the second vehicle 13. According to the example- p l e shown in Figures 1 and 2, these means 14 consist of a guide device supported by the frame 15 containing the vehicle advance mechanism 12 and optionally the vehicle movement control 13. According to an exemplary embodiment, this device guide consists of cooperating rails and rollers. The power supply and shot blasting nozzles are provided by flexible conduits in a manner known per se. The vehicle 13 (Figures 3 to 7) carries the projection members consisting of at least two columns 16 and 17 of shot blasting nozzles 18 and 19. The nozzles are connected to angular displacement means producing an alternating oscillatory movement in a plane vertical. These means can be similar to those described in the aforementioned patent application, and consist at least in part of a crank connecting rod mechanism acting directly or indirectly on the end of levers integral with the nozzles. The neighboring nozzles are connected to each other by articulated levers driven by a crank rod mechanism, which allows synchronization of the movement of the projection members with respect to each other. The distance from the nozzles to the wall is such that the zone swept vertically by the jet of abrasive from a nozzle, partially covers the zone swept by the jet from the nozzle situated just above or below.

Dans les figures 1, 3 et 4, le dispositif, représenté dans la position A de grenaillage des fonds, montre le véhicule 12 placé à une distance déterminée du fond correspondant à un traitement satisfaisant. Le véhicule 13 portant les organes de projection est placé à une extrémité du dispositif de guidage 14 du mouvement orthogonal porté par le véhicule 12, c'est-à-dire pour effectuer un déplacement transversal par rapport à l'axe de la pièce à traiter. La vitesse du véhicule 13 est synchronisée avec le mouvement d'oscillation vertical des buses pour obtenir un recouvrement des zones-balayées. Lorsque les panneaux à traiter présentent des ondulations ou gaufrages perpendiculairement à la direction du déplacement relatif des buses et de la surface, il est préférable de faire deux passes de grenaillage, chacune des passes étant faite avec une orientation différente des buses dans le plan horizontal, ou d'utiliser des buses à deux jets, l'angle entre les jets étant fonction du profil à grenailler.In Figures 1, 3 and 4, the device, shown in position A shot peening of the bottoms, shows the vehicle 12 placed at a determined distance from the bottom corresponding to satisfactory treatment. The vehicle 13 carrying the projection members is placed at one end of the device 14 for guiding the orthogonal movement carried by the vehicle 12, that is to say to effect a transverse movement relative to the axis of the part to be treated . The speed of the vehicle 13 is synchronized with the vertical oscillation movement of the nozzles for obtain an overlap of the scanned areas. When the panels to be treated have corrugations or embossments perpendicular to the direction of relative movement of the nozzles and the surface, it is preferable to make two blasting passes, each of the passes being made with a different orientation of the nozzles in the horizontal plane, or to use nozzles with two jets, the angle between the jets being a function of the profile to be shot blasted.

Le dispositif, représenté dans la position B (figures 1, 5 et 6) a été avancé près du fond et les colonnes de buses 16 et 17 ont été tournées dans une position approximativement orthogonale par rapport à celle de la position A, de manière à se présenter devant les panneaux latéraux sous un angle proche de 90°.The device, shown in position B (Figures 1, 5 and 6) has been advanced near the bottom and the nozzle columns 16 and 17 have been rotated in a position approximately orthogonal to that of position A, so as to present themselves in front of the side panels at an angle close to 90 °.

Le véhicule 13 portant les colonnes est amené dans une position fixe au centre du véhicule 12. La position du véhicule 12 est définie par rapport au fond 7, de manière que l'axe des jets soit centré dans l'angle formé par le fond et les panneaux latéraux. Les moyens d'orientation des buses sont constitués, par exemple, par des vérins 20 agissant directement ou indirectement sur les organes de projection groupés selon des colonnes 16 et 17 contenant les moyens de déplacement angulaire vertical des buses et montés mobiles dans un plan horizontal. Selon une forme de réalisation, les colonnes se présentent sous forme d'un volume allongé mobile en rotation selon un axe vertical disposé à chaque extrémité du véhicule 13. Ces mêmes moyens d'orientation peuvent être utilisés pour orienter les buses dans un plan horizontal selon un angle déterminé par rapport à la surface à traiter, notamment dans la phase de grenaillage des fonds lorsque les panneaux sont ondulés ou nervurés.The vehicle 13 carrying the columns is brought into a fixed position in the center of the vehicle 12. The position of the vehicle 12 is defined relative to the bottom 7, so that the axis of the jets is centered in the angle formed by the bottom and the side panels. The means for orienting the nozzles are constituted, for example, by jacks 20 acting directly or indirectly on the projection members grouped in columns 16 and 17 containing the means for vertical angular displacement of the nozzles and mounted movable in a horizontal plane. According to one embodiment, the columns are in the form of an elongated volume movable in rotation about a vertical axis disposed at each end of the vehicle 13. These same orientation means can be used to orient the nozzles in a horizontal plane according to a determined angle with respect to the surface to be treated, in particular in the shot peening phase of the bottoms when the panels are wavy or ribbed.

Legrenaillage du plafond est rendu possible par l'utilisation de buses 21 et 22 à axe sensiblement vertical portées, par exemple, par le châssis 15 du véhicule 12. Selon la forme de réalisation représentée sur les figures 4 et 6, les buses sont reliées à des moyens de déplacement angulaire produisant un mouvement oscillatoire dans un plan sensiblement perpendiculaire au panneau formant le plafond et à des moyens de déplacement longitudinal 23 disposés dans le châssis 15 et représentés par un dispositif à rail et galet. Les moyens de déplacement 23 sont mis en action après avoir placé le véhicule 13 dans la position médiane du véhicule 12. Les buses 18, 19, 21 et 22 sont fixées de manière que l'axe des jets d'abrasif rencontrent les panneaux à traiter selon des droites situées dans un même plan.Ceiling gearing is made possible by the utility sation of nozzles 21 and 22 with a substantially vertical axis carried, for example, by the chassis 15 of the vehicle 12. According to the embodiment shown in Figures 4 and 6, the nozzles are connected to angular displacement means producing an oscillatory movement in a plane substantially perpendicular to the panel forming the ceiling and to longitudinal displacement means 23 arranged in the frame 15 and represented by a rail and roller device. The displacement means 23 are put into action after placing the vehicle 13 in the middle position of the vehicle 12. The nozzles 18, 19, 21 and 22 are fixed so that the axis of the abrasive jets meet the panels to be treated according to lines located in the same plane.

La figure 7 donne les positions moyennes des buses pour un dispositif comprenant deux colonnes 16 et 17 de deux buses 18 et 19 travaillant sur les panneaux latéraux et de deux buses 21 et 22 travaillant sur le panneau du plafond. On a représenté en traits mixtes les positions extrêmes des axes des buses.Figure 7 gives the average positions of the nozzles for a device comprising two columns 16 and 17 of two nozzles 18 and 19 working on the side panels and two nozzles 21 and 22 working on the ceiling panel. The extreme positions of the axes of the nozzles have been shown in dashed lines.

Des moyens de contrôle de la vitesse de déplacement du véhicule 12 par rapport à la paroi à traiter et par rapport à la vitesse de déplacement angulaire des organes de grenaillage sont prévus dans le bâti 15 et agissent sur le moteur assurant le déplacement longitudinal du véhicule.Means for controlling the speed of movement of the vehicle 12 with respect to the wall to be treated and with respect to the speed of angular displacement of the shot blasting members are provided in the frame 15 and act on the motor ensuring the longitudinal movement of the vehicle.

L'installation représentée figures 1 et 2 comporte sur un de ses côtés un prolongement latéral 3B susceptible de recevoir des moyens de mise en place du dispositif 1. Ces moyens sont constitués par un chariot 24 se déplaçant sur des rails 25 sensiblement perpendiculaires aux rails formant la voie 27 de roulement du chariot 28 supportant le conteneur à traiter.The installation shown in FIGS. 1 and 2 comprises on one of its sides a lateral extension 3B capable of receiving means for positioning the device 1. These means consist of a carriage 24 moving on rails 25 substantially perpendicular to the rails forming track 27 of the carriage 28 supporting the container to be treated.

Le chariot 24 porte perpendiculairement à sa direction de déplacement des organes de guidage 26 sur lesquels est placé le dispositif de grenaillage 1. Le déplacement du chariot 24 est assuré par tout moyen convenable. Des moyens de positionnement (non représentés) arrêtent la course du chariot 24 et le verrouille dans une position telle que les organes de guidage 26 sont dans le prolongement du chemin de roulement 11 prévu dans la pièce à traiter et le long duquel se déplace le dispositif de grenaillage 1. Le verrouillage du chariot 24 commande le mouvement de déplacement longitudinal du dispositif 1 qui, selon le programme des opérations choisi, peut exécuter une première passe de grenaillage en allant vers le fond 7 du conteneur, où il s'arrêtera avant de se remettre à la distance fixe prévue pour le grenaillage du fond, le véhicule 13 se déplaçant alors perpendiculairement au chemin de roulement 11. Une deuxième passe peut être prévue à la fin de laquelle le véhicule 12 reprend la position montrée en B proche du fond et repart vers le chariot 24 sur lequel il vient se placer en fin d'opération.The carriage 24 carries perpendicularly to its direction of movement of the guide members 26 on which the blasting device 1 is placed. The movement of the carriage 24 is ensured by any suitable means. Positioning means (not shown) stop the stroke of the carriage 24 and locks it in a position such that the guide members 26 are in the extension of the raceway 11 provided in the part to be treated and along which the device moves shot blasting 1. The locking of the carriage 24 controls the longitudinal movement of movement of the device 1 which, depending on the program of operations chosen, can execute a first shot blasting pass by going towards the bottom 7 of the container, where it will stop before return to the fixed distance provided for shot peening the bottom, the vehicle 13 then moving perpendicular to the raceway 11. A second pass can be provided at the end of which the vehicle 12 resumes the position shown in B near the bottom and sets out again towards the carriage 24 on which it is placed at the end of the operation.

Il est compréhensible que les moyens de mise en place du dispositif peuvent se présenter différemment de ceux précédemment décrits, mais la forme simple donnée leur permet de rentrer facilement dans l'automatisation de l'opération de grenaillage effectuée à l'aide d'un dispositif conforme à l'invention.It is understandable that the means of setting up the device can be presented differently from those previously described, but the simple form given allows them to easily enter into the automation of the peening operation carried out using a device. according to the invention.

Un deuxième exemple de réalisation d'un dispositif de grenaillage intérieur, selon l'invention, est représenté figure 8.A second exemplary embodiment of an internal shot blasting device according to the invention is shown in FIG. 8.

Le véhicule se déplaçant longitudinalement dans la pièce à grenailler, est constitué d'un caisson 29 équipé de roues 30 se déplaçant sur un chemin de roulement constitué, par exemple, par des cornières fixées sur le plancher du conteneur ou faisant partie du plancher. Le déplacement du véhicule est commandé par un groupe automoteur (non représenté) agissant sur les roues et porté par le caisson. Un s.econd moteur, également disposé dans ou sur le caisson permet la commande du deuxième véhicule 31. L'extrémité du premier véhicule 29 porte un axe vertical qui, dans l'exemple de réalisation montré, est formé d'un bâti 32 sur lequel sont fixés deux paliers 33 et 34 portant un arbre 35. L'extrémité inférieure de cet arbre porte des moyens d'entraînement 36, par exemple une roue dentée, coopérant avec des moyens de commande, par exemple une chaîne 37 entraînée par le second moteur précédemment cité. L'extrémité supérieure de l'arbre est fixée au deuxième véhicule 31 qui est constitué d'un bâti portant à ses extrémités deux branches parallèles. Selon l'exemple représenté, le deuxième véhicule présente la forme d'un H à branches inégales décalées dans le plan de la figure, et est constitué d'un bâti central 38, portant les bagues de serrage 39 de l'arbre 35, aux extrémités duquel sont fixés deux caissons 40 et 41 auto-portants. Le caisson 40 porte des organes de projection dont l'axe moyen est dirigé horizontalement et le caisson 41, des organes de projection dont l'axe moyen est dirigé verticalement. Le caisson 40 porte deux groupes 42 et 43 d'organes de projection constitués de deux buses à double jet 44. Ces buses sont fixées à l'extrémité d'un arbre 45, perpendiculaire à l'axe du caisson 40, mobile en rotation dans deux paliers 46 fixés dans la partie haute du caisson. A l'autre extrémité de l'arbre sont fixés des moyens de transmission de mouvement constitués d'une roue dentée 47 coopérant avec une chaîne 48 engrenant elle-même avec des moyens 49 prévus à l'extrémité d'un arbre 50 portant le deuxième groupe 43 de buses 44 et tournant dans un premier palier 51A, disposé à la partie basse du caisson. L'arbre 50 se prolonge vers la deuxième branche 41 dans laquelle il est maintenu par un deuxième palier 51B. L'extrémité de l'arbr'3 50 pénétrant dans le caisson 41 porte des moyens de transmission de mouvement constitués, comme les autres, d'une roue dentée 52 engrenant une chaîne 53 qui transmet le mouvement à une roue dentée 54 fixée à l'extrémité d'un axe 55 mobile en rotation dans les paliers 56 fixés à la partie haute du caisson 41. L'extrémité de l'axe 55 porte des organes de projection dont l'axe moyen est dirigé verticalement. Ces organes sont constitués d'un groupe 57 de deux buses 44 à double jet. Le mouvement de déplacement angulaire de ces trois groupes de buses est obtenu par des moyens produisant un mouvement oscillatoire alternatif dans un plan vertical. Ils sont constitués par un vérin pneumatique 58 à course alternative disposé dans le caisson 40 dont la tige de piston entraîne, par exemple, une came 59 solidaire de l'arbre 45. Le mouvement est transmis à l'ensemble des buses par l'intermédiaire de la roue 47, de la chaîne 48, de la roue 49, de l'arbre 50, de la roue 52, de la chaîne 53, de la roue 54 et de l'arbre 55. Les axes moyens des organes de projection des deux branches du véhicule 31 sont sensiblement perpendiculaires et contenus dans des plans parallèles entre eux. Comme le montrent clairement les figures 9 et 10, le dispositif, selon la seconde forme de réalisation, permet le grenaillage que d'un seul côté du conteneur et de la moitié du plafond. Le mode de fonctionnement de ce dispositif est le suivant : le véhicule 29 est introduit, comme décrit pour le véhicule 1 de l'exemple précédent, dans le conteneur, le deuxième véhicule 31 étant tourné de manière que l'axe de sa branche horizontale soit dans l'axe du conteneur, et le grenaillage est déclenché. Lorsque le dispositif arrive à une certaine distance prédéterminée du fond, le véhicule 29 s'arrête et le véhicule 31 tourne autour de l'axe 35 pendant que les jets d'abrasifs des buses balaient le fond. Le temps de balayage est suffisant pour que le grenaillage soit convenablement effectué lors du déplacement. Lorsque le véhicule 31 est venu dans une position à 180° par rapport à sa position de départ, le véhicule 29 recule vers l'entrée du conteneur, les buses faisant le grenaillage de l'autre côté du conteneur et de la moitié restante du plafond.The vehicle moving longitudinally in the part to be shot blasted, consists of a box 29 fitted with wheels 30 moving on a raceway constituted, for example, by angles fixed on the plane expensive container or part of the floor. The movement of the vehicle is controlled by a self-propelled group (not shown) acting on the wheels and carried by the box. A second motor, also arranged in or on the box, allows the control of the second vehicle 31. The end of the first vehicle 29 carries a vertical axis which, in the embodiment shown, is formed by a frame 32 on which are fixed two bearings 33 and 34 carrying a shaft 35. The lower end of this shaft carries drive means 36, for example a toothed wheel, cooperating with control means, for example a chain 37 driven by the second previously cited engine. The upper end of the shaft is fixed to the second vehicle 31 which consists of a frame carrying at its ends two parallel branches. According to the example shown, the second vehicle has the shape of an H with uneven branches offset in the plane of the figure, and consists of a central frame 38, carrying the clamping rings 39 of the shaft 35 , to ends of which are fixed two self-supporting boxes 40 and 41. The box 40 carries projection members whose mean axis is directed horizontally and the box 41, projection members whose mean axis is directed vertically. The box 40 carries two groups 42 and 43 of projection members made up of two double jet nozzles 44. These nozzles are fixed to the end of a shaft 45, perpendicular to the axis of the box 40, which can rotate in two bearings 46 fixed in the upper part of the box. At the other end of the shaft are fixed motion transmission means consisting of a toothed wheel 47 cooperating with a chain 48 itself meshing with means 49 provided at the end of a shaft 50 carrying the second group 43 of nozzles 44 and rotating in a first bearing 51A, disposed at the bottom of the box. The shaft 50 extends towards the second branch 41 in which it is held by a second bearing 51B. The end of the shaft 50 entering the box 41 carries motion transmission means consisting, like the others, of a toothed wheel 52 meshing with a chain 53 which transmits the movement to a toothed wheel 54 fixed to the end of an axis 55 movable in rotation in the bearings 56 fixed to the upper part of the box 41. The end of the axis 55 carries projection members whose mean axis is directed vertically. These members consist of a group 57 of two nozzles 44 with double jet. The angular displacement movement of these three groups of nozzles is obtained by means producing an alternating oscillatory movement in a vertical plane. They consist of a pneumatic cylinder 58 with alternating stroke arranged in the box 40 whose piston rod drives, for example, a cam 59 secured to the shaft 45. The movement is transmitted to all of the nozzles via wheel 47, chain 48, wheel 49, shaft 50, wheel 52, chain 53, wheel 54 and shaft 55. The mean axes of the projection members of the two branches of the vehicle 31 are substantially perpendicular and contained in planes parallel to each other. As clearly shown in Figures 9 and 10, the device, according to the second embodiment, allows shot blasting only on one side of the container and half of the ceiling. The operating mode of this device is as follows: the vehicle 29 is introduced, as described for vehicle 1 of the previous example, into the container, the second vehicle 31 being rotated so that the axis of its horizontal branch is in the axis of the container, and shot blasting is triggered. When the device arrives at a certain predetermined distance from the bottom, the vehicle 29 stops and the vehicle 31 turns around the axis 35 while the jets of abrasives from the nozzles sweep the bottom. The scanning time is sufficient for the shot peening to be properly carried out during the movement. When the vehicle 31 has come into a 180 ° position by relative to its starting position, the vehicle 29 moves back towards the entrance of the container, the nozzles blasting the other side of the container and the remaining half of the ceiling.

Claims (17)

1. Dispositif de grenaillage automatique pour l'intérieur de pièces de grandes dimensions comportant des organes de projection animés d'un mouvement oscillant et des moyens de déplacement relatif des organes de projéc- tion et de la surface à traiter,
caractérisé en ce que les moyens de déplacement, portant les organes de projection, sont constitués d'un ensemble d'au moins deux véhicules (12, 13; 29, 31) susceptibles de se déplacer orthogonalement l'un par rapport à l'autre.1. Automatic shot blasting device for the interior of large pieces comprising projection members driven by an oscillating movement and means for relative displacement of the projection members and of the surface to be treated,
characterized in that the displacement means, carrying the projection members, consist of a set of at least two vehicles (12, 13; 29, 31) capable of moving orthogonally to one another . 2. Dispositif selon la revendication 1, caractérisé en ce que l'un des véhicules (12, 29) porte au moins une partie des moyens (14, 35) permettant le déplacement orthogonal du deuxième véhicule (13, 31).2. Device according to claim 1, characterized in that one of the vehicles (12, 29) carries at least part of the means (14, 35) allowing the orthogonal movement of the second vehicle (13, 31). 3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le deuxième véhicule (13, 31) porte des moyens d'orientation des organes de projection dans un plan perpendiculaire à leur plan d'oscillation.3. Device according to claim 1 or 2, characterized in that the second vehicle (13, 31) carries means for orienting the projection members in a plane perpendicular to their plane of oscillation. 4. Dispositif selon la revendication 3, caractérisé en ce que les moyens d'orientation sont prévus pour amener les organes de projection (18, 19) d'une première position (A) à une deuxième position (B) approximativement orthogonale.4. Device according to claim 3, characterized in that the orientation means are provided for bringing the projection members (18, 19) from a first position (A) to a second position (B) approximately orthogonal. 5. Dispositif selon la revendication 3 ou 4, caractérisé en ce que les moyens d'orientation comprennent des moyens agissant directement ou indirectement sur les organes de projection groupés selon au moins une colonne .(16, 17) contenant les moyens de déplacement angulaire vertical, et montés mobiles dans un plan horizontal.5. Device according to claim 3 or 4, characterized in that the orientation means comprise means acting directly or indirectly on the projection members grouped in at least one column. (16, 17) containing the means for vertical angular displacement , and mounted movable in a horizontal plane. 6. Dispositif selon la revendication 5, caractérisé en ce que la colonne (16, 17) contenant les moyens de déplacement angulaire vertical est montée mobile autour d'un axe vertical.6. Device according to claim 5, characterized in that the column (16, 17) containing the means for vertical angular displacement is mounted mobile around a vertical axis. 7. Dispositif selon l'une des revendications précéden- tes, caractérisé en ce qu'il comporte au moins un organe de projection (21, 22) dirigé verticalement et oscillant dans un plan vertical, ledit plan étant confondu avec le plan vertical dans lequel oscillent les organes de projection groupés en colonnes.7. Device according to one of the preceding claims - tes, characterized in that it comprises at least one projection member (21, 22) directed vertically and oscillating in a vertical plane, said plane being coincident with the vertical plane in which the projection members oscillate grouped in columns. 8. Dispositif selon la revendication 7, caractérisé en ce que des moyens de déplacement longitudinal (23) sont prévus sur le premier véhicule (12) pour amener l'organe de projection dirigé verticalement en position lors du grenaillage des surfaces latérales.8. Device according to claim 7, characterized in that longitudinal displacement means (23) are provided on the first vehicle (12) to bring the projection member directed vertically into position during shot peening of the lateral surfaces. 9. Dispositif selon la revendication 1 ou 3, caractérisé en ce que lé deuxième véhicule portant les moyens de projection est constitué d'un bâti (31), mobile autour d'un axe vertical (35) fixé sur le premier véhicule (29) se déplaçant longitudinalement par rapport à la pièce à traiter, portant à ses extrémités deux branches parallèles (40, 41) audit axe vertical, l'une des branches (40) portant des organes de projection (44) dont l'axe moyen est dirigé horizontalement et l'autre branche (41), des organes de projection (44) dont l'axe moyen est dirigé verticalement.9. Device according to claim 1 or 3, characterized in that the second vehicle carrying the projection means consists of a frame (31), movable around a vertical axis (35) fixed on the first vehicle (29) moving longitudinally with respect to the part to be treated, carrying at its ends two parallel branches (40, 41) to said vertical axis, one of the branches (40) carrying projection members (44) whose mean axis is directed horizontally and the other branch (41), projection members (44) whose mean axis is directed vertically. 10. Dispositif selon la revendication 9, caractérisé en ce que le deuxième véhicule (31) comporte un bâti en forme de H tournant autour d'un axe vertical (35) fixé sur la branche horizontale (38), l'axe étant maintenu par des paliers (33, 34) fixés sur le premier véhicule et portant des moyens de commande en rotation (37).10. Device according to claim 9, characterized in that the second vehicle (31) comprises an H-shaped frame rotating around a vertical axis (35) fixed on the horizontal branch (38), the axis being held by bearings (33, 34) fixed on the first vehicle and carrying rotation control means (37). 11. Dispositif selon la revendication 9 ou 10, caractérisé en ce que les organes de projection (44) sont fixés sur des arbres mobiles en rotation (45, 55) dans des paliers (46, 56) portés par les branches verticales (40, 41), des moyens de transmission (47, 48, 49; 52, 53, 54) étant prévus aux extrémités des arbres pour transmettre le mouvement oscillatoire.11. Device according to claim 9 or 10, character risé in that the projection members (44) are fixed on shafts movable in rotation (45, 55) in bearings (46, 56) carried by the vertical branches (40, 41), transmission means (47, 48, 49; 52, 53, 54) being provided at the ends of the shafts to transmit the oscillatory movement. 12. Dispositif selon la revendication 11, caractérisé en ce que l'axe des arbres portant les organes de projection est horizontal.12. Device according to claim 11, characterized in that the axis of the trees carrying the projection members is horizontal. 13. Dispositif selon la revendication 11 ou 12, caractérisé en ce que l'un des arbres (45) porte une came (59) à l'extrémité de laquelle sont fixés les moyens (58) produisant le mouvement oscillatoire.13. Device according to claim 11 or 12, characterized in that one of the shafts (45) carries a cam (59) at the end of which are fixed the means (58) producing the oscillatory movement. 14. Dispositif selon la revendication 13, caractérisé en ce que les moyens produisant le mouvement oscillatoire sont formés d'au moins un vérin (58) à course alternative.14. Device according to claim 13, characterized in that the means producing the oscillatory movement are formed of at least one cylinder (58) with alternating stroke. 15. Dispositif selon l'une des revendications 9 à 14, caractérisé en ce que chaque branche porte au moins un. arbre mobile (45, 55) en rotation auquel est fixé au moins un organe de projection (44), et en ce qu'au moins un arbre mobile (50) est commun aux deux branches (40, 41).15. Device according to one of claims 9 to 14, characterized in that each branch carries at least one. movable shaft (45, 55) in rotation to which is fixed at least one projection member (44), and in that at least one movable shaft (50) is common to the two branches (40, 41). 16. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comporte des moyens de contrôle de la vitesse de déplacement des véhicules par rapport à la surface à traiter et par rapport à la vitesse de déplacement angulaire d'oscillation des organes de projection.16. Device according to one of the preceding claims, characterized in that it comprises means for controlling the speed of movement of the vehicles with respect to the surface to be treated and with respect to the speed of angular displacement of oscillation of the members. projection. 17. Installation de grenaillage automatique mettant en oeuvre un dispositif selon l'une des revendications précédentes comprenant au moins une enceinte étanche aux poussières, des moyens de support et de déplacement de la pièce à traiter, caractérisée en ce qu'elle comporte des moyens de mise en place (24) du dispositif logés dans un prolongement latéral (3B) de l'enceinte, lesdits moyens étant susceptibles de se déplacer perpendiculairement à la direction de déplacement des moyens supports et de déplacement (28) portant la pièce à traiter, les moyens de mise en place étant munis, perpendiculairement à leur direction de déplacement, de moyens de guidage (26) coopérant avec le premier véhicule (1, 29) du dispositif, des moyens de verrouillage fixant les moyens de mise en place dans une position telle que les moyens de guidage soient dans le prolongement d'un chemin de roulement (11) disposé dans la pièce à traiter (2), des moyens de commande du déplacement des moyens de mise en place du dispositif, des moyens de verrouillage et des mouvements du dispositif de grenaillage.17. Automatic shot blasting installation using a device according to one of the preceding claims comprising at least one dust-tight enclosure, support and displacement means for the part to be treated, characterized in that it comprises means for positioning (24) of the device housed in a lateral extension (3B) of the enclosure, said means being capable of moving perpendicular to the direction of movement of the support and displacement means (28) carrying the part to be treated, the positioning means being provided, perpendicular to their direction of displacement, with guide means (26) cooperating with the first vehicle (1, 29) of the device, locking means fixing the positioning means in a position such that the guide means are in the extension of a raceway (11) disposed in the part to be treated (2), means for controlling the movement of the means for positioning the device, locking means and movements of the shot blasting device.
EP80400301A 1979-03-08 1980-03-04 Automatic sand-blasting device for the interior of large objects and equipment comprising such a device Withdrawn EP0016680A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7905960A FR2450668A1 (en) 1979-03-08 1979-03-08 Automatic sand-blasting equipment for transport container interiors - consists of wheeled carriage with blasting jet control section to treat all surfaces
FR7905960 1979-03-08
FR7918230A FR2460754A2 (en) 1979-03-08 1979-07-13 AUTOMATIC SCRATCHING DEVICE FOR INTERIOR OF HIGH-DIMENSIONAL PARTS AND INSTALLATION COMPRISING SUCH A DEVICE
FR7918230 1979-07-13

Publications (1)

Publication Number Publication Date
EP0016680A1 true EP0016680A1 (en) 1980-10-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400301A Withdrawn EP0016680A1 (en) 1979-03-08 1980-03-04 Automatic sand-blasting device for the interior of large objects and equipment comprising such a device

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Country Link
EP (1) EP0016680A1 (en)
BR (1) BR8001379A (en)
ES (1) ES489347A0 (en)
FR (1) FR2460754A2 (en)

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US5081800A (en) * 1988-10-25 1992-01-21 Heinrich Schlick Gmbh Vehicular device designed to operate in enclosed canals

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US1605730A (en) * 1921-12-24 1926-11-02 Herman F Hoevel Spraying device
US1883917A (en) * 1928-08-18 1932-10-25 Pangborn Corp Sand blast nozzle wiggler
US1935956A (en) * 1931-06-09 1933-11-21 William L Schulenberg Sand blasting apparatus
US3151418A (en) * 1963-07-16 1964-10-06 Pangborn Corp Pipe cleaning apparatus
GB1145147A (en) * 1965-08-25 1969-03-12 Henri Jean Daussan Method of and device for preparing the interior surface of foundry receptacles
US3531964A (en) * 1967-08-31 1970-10-06 Nasa Controlled glass bead peening
US3902276A (en) * 1974-12-03 1975-09-02 Harold F Jarvis Spin-blast apparatus
DE2525761A1 (en) * 1975-06-10 1976-12-23 Gutmann Ges Fuer Maschinenbau DEVICE FOR BLASTING LARGE-SCALE AND LARGE-AREA WORKPIECES
US4016681A (en) * 1975-12-11 1977-04-12 Wheelabrator-Frye, Inc. Surface treatment device for large diameter pipe sections
US4081930A (en) * 1975-12-15 1978-04-04 Intra-Pipe, Inc. Arrangement for cleaning a conduit

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Publication number Priority date Publication date Assignee Title
US1605730A (en) * 1921-12-24 1926-11-02 Herman F Hoevel Spraying device
US1883917A (en) * 1928-08-18 1932-10-25 Pangborn Corp Sand blast nozzle wiggler
US1935956A (en) * 1931-06-09 1933-11-21 William L Schulenberg Sand blasting apparatus
US3151418A (en) * 1963-07-16 1964-10-06 Pangborn Corp Pipe cleaning apparatus
GB1145147A (en) * 1965-08-25 1969-03-12 Henri Jean Daussan Method of and device for preparing the interior surface of foundry receptacles
US3531964A (en) * 1967-08-31 1970-10-06 Nasa Controlled glass bead peening
US3902276A (en) * 1974-12-03 1975-09-02 Harold F Jarvis Spin-blast apparatus
DE2525761A1 (en) * 1975-06-10 1976-12-23 Gutmann Ges Fuer Maschinenbau DEVICE FOR BLASTING LARGE-SCALE AND LARGE-AREA WORKPIECES
US4016681A (en) * 1975-12-11 1977-04-12 Wheelabrator-Frye, Inc. Surface treatment device for large diameter pipe sections
US4081930A (en) * 1975-12-15 1978-04-04 Intra-Pipe, Inc. Arrangement for cleaning a conduit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081800A (en) * 1988-10-25 1992-01-21 Heinrich Schlick Gmbh Vehicular device designed to operate in enclosed canals

Also Published As

Publication number Publication date
ES8200035A1 (en) 1981-10-16
FR2460754A2 (en) 1981-01-30
BR8001379A (en) 1980-11-11
ES489347A0 (en) 1981-10-16

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