FR2565878A2 - STACKING PLANT OF ANY SHAPED PIECES BY MEANS OF AN ORIENTABLE LANCE - Google Patents

Abstract

INSTALLATION ACCORDING TO CLAIM 1 OF THE MAIN PATENT FOR SHOT BLASTING OF PARTS OF ANY SHAPES BY MEANS OF A MOBILE LANCE, MOUNTED ON A PLATFORM THAT CAN RECEIVE THE OPERATOR AND WHICH IS MOVABLE VERTICALLY ON A VERTICAL BASE. IN THE PRESENT INSTALLATION, THIS VERTICAL BUILDING 2 IS MOBILE MOUNTED ALONG A HORIZONTAL GUIDING PATH 14 AND, ON EACH OTHER OF THIS BUILDING, TWO CURTAIN WALLS 13 ATTACHED TO ITS CORRESPONDING VERTICAL SIDES AND ALSO MOUNTED MOBILE ALONG A HORIZONTAL GUIDING PATH 20 PARALLEL TO THE ONE GUIDING THE CONTAINER 2 CARRYING THE PLATFORM 1. A DRIVING DEVICE IS PROVIDED TO ENSURE THE MOVEMENT, IN ONE DIRECTION OR THE OTHER, OF THE ASSEMBLY MOBILE THUS CONSTITUTES. THE GUIDE PATH 20 OF THE CURTAIN WALLS 13 EXTENDS BEYOND THE ENDS OF THE GUIDE PATH 14 OF THE VERTICAL BUILDING 2, BY CURVED ENDS TO CONSTITUTE GARAGE TRACKS FOR THE CURTAIN WALLS, WHEN THIS ASSEMBLY IS MOVED MOBILE IN ONE SENSE OR THE OTHER. THIS INSTALLATION IS INTENDED TO BE USED FOR SHOT BLASTING OF PARTS OF ANY SHAPE.

Description

The present invention relates to the installation of

  naillage which is the subject of the Principal Patent.

  This installation comprises a nacelle that can receive an operator and on which is mounted a directional lance capable of projecting a jet of shot, the operator being protected by a vertical wall pierced with a glazed opening.

  to control the work done. This facility

  lation is characterized in that this nacelle is moved

  vertically on a support frame, while the

  projection lance is slid axially axially

  towards the vertical wall of the nacelle while being

  It is possible to articulate on the latter by means of a ball joint, a steerable nozzle being furthermore provided at the end of this lance. Thanks to this arrangement it is possible to perform a complete shot blasting of the entire surface of the piece

  to blast, even if this piece has a particular shape

  complex. For this purpose the operator can both play on a possibility of modifying the level of the lance by vertical displacement of the nacelle, on a possibility of displacement of the end of the lance relative to the nacelle through a movement of axial sliding, on a possibility of orientation of the lance by articulation on the wall which serves as a support, and finally on a possibility of articulation of the end terminal projection relative

  to the very body of the spear. These various possibilities for de-

  placement are further supplemented by the fact that the spear

  can turn on itself in rotation.

  The pieces to be blasted are then arranged on a carriage in order to scroll through their entire length in the area swept by the projection lance. In these

  the length of the parts to be treated must be less than

  than half the length of the shot blasting cabin.

  Moreover, the arrangement of the parts to be blasted on a carriage involves ensuring a perfect fit of these parts thereon. But this raises difficulties in the case

pieces of complex shapes.

  This is why the present invention relates to a new embodiment of the installation in question,

  which is designed to increase significantly

  te, the length of the scanning area of the projection spear

  In order to be able to shot relatively long pieces without having to move them on a cart. However, this installation is also designed so that its

  floor space is nevertheless reduced to the strict minimum.

  For this purpose the installation according to the invention is

  characterized in that the vertical frame, carrying the nacelle, is mounted mobile along a horizontal guide path and in that, on either side of this frame, there are two curtain walls attached one and the other at its corresponding vertical sides and also movably mounted along a horizontal guide path, a driving device being

  intended to provide for movement in one direction or in the

  of the set consisting of the vertical frame and the

curtain walls attached to it.

  Thus it is now possible to combine the various possibilities of movements, mentioned above, with a translational movement of the nacelle, and consequently the projection lance, in the horizontal direction. Of course during such a translation movement, one of the walls

  curtains is pulled by the frame carrying the basket

as long as the other is pushed.

  According to another characteristic of the installation according to the invention, each of its curtain walls is constituted by a series of relatively narrow vertical panels, articulated one after the other and suspended, by means of rollers, on

  a horizontal guide rail whose ends are bent on them

  same to reduce the clutter of this irsmta drdnslese-sd the kngunr.

  However, other features and advantages of the

  according to the invention will appear during the course of

  following description of an exemplary embodiment thereof.

  This description is given with reference to the appended drawing

  for information only, and in which: Figure 1 is a perspective view of a shot blasting installation according to the invention; Figures 2 and 3 are partial sectional views

  transverse along the line II-II of Figure 1, respectively

  the upper and lower portions of one of the curtain walls and supporting and guiding elements therefor; FIG. 4 is a partial plan view from above of a

  curtain wall, with a cut-out corresponding to a hori-

  horizontal section along the line IV-IV of Figure 3; FIG. 5 is a perspective view in section of

  two successive panels of one of the curtain walls.

  The installation shown comprises a nacelle 1 mounted mobile, in the vertical direction, on a support frame 2 of the same

  the nacelle of the installation described in the main patent

  cipal. This nacelle has a horizontal platform 3 intended to support the operator and has a wall

  vertical 4 crossed by a projection lance 5.

  In this regard, it is not necessary to explain in detail the method of mounting this lance in this wall, because it is

  already described in the main patent. It is therefore sufficient to remind

  ler that this lance is orientable by articulation in a

  ball joint carried by this wall, that it can slide axially-

  through it and that it is also likely to turn on itself. In addition, this lance carries at the end a projection nozzle 6 which is articulated in the manner described.

in the main patent.

  How to mount the nacelle 1 on the vertical frame

  2 is also the same as that described in the main patent.

  cipal. As a result this nacelle, which can slide vertically

  between the uprights 7 of this frame, is suspended from a curtain 8 attached to a winding drum 9 whose shaft can be driven by a motor 10. Thus the raising of this nacelle is controlled by winding the curtain 8 on

  the drum 9, while its descent is obtained by unfolding

  this curtain. As provided in the main patent, this

  The curtain also extends below platform 1 for

  sea space left free by it when it is in

  raised position, the lower end of this curtain

  lant on another drum provided at the base of frame 2.

  In its upper part the vertical wall 4 of the nacelle comprises an opening provided with a window 11 for controlling the orientation of the end nozzle of the lance and monitoring the working conditions. The outer face of this window is protected from shot bouncing by a turbine 12, as well as in the installation according to

the main patent.

  However, the present installation differs from

  ci in that the vertical frame 2 is mounted movably along a horizontal guide path and in that it is

  on both sides of it, two curtain walls

  characterized by the general reference 13, these being attached to the corresponding vertical sides of this frame and also mounted movably

  along a horizontal guide path.

  In the example embodiment shown, the frame

  2 is suspended from a horizontal beam 14 on which

  it is supported by two rollers 15, one of which can be rotated by a motor 16 to serve as a driving means of this

  built, one way or the other, along the beam 14.

  This is carried by uprights 17 resting on the ground

  and which can be part of the overall chassis of the present

the installation.

  At its lower part the frame 2 is supported on a guide section 18 may also be part of the frame of the assembly. This support is done through

of pebbles 19.

  The two curtain walls 13 are suspended from a horizontal rail

  tal 20 disposed at the beam 14 and parallel thereto. In

  the case shown, this rail is fixed on this beam by the in-

  intermediary of supports 21. However the ends 22 of

  This rail extends beyond the beam 14 and is

  inwardly, as shown in Figure 1, so as to each constitute a kind of siding for the respective end of the curtain wall 13 corresponding. In this

  effect the ends of this rail are attached to arms

  support 23 themselves carried by the beam 14. At their part

  lower the two curtain walls are engaged in a slide

  horizontal rail 24 which has the same shape as the rail

20.

  Each of these curtain walls is constituted by a series of panels 25, relatively narrow, arranged one after the other and which articulate with each other along vertical axes. As shown in Figures 4 and 5, each of the panels 25 is constituted by a metal box 26 closed on the inside by a plate 27 of cladding and which contains a seal 28 soundproofing. The outer face of each of these panels, that is to say that facing the direction of projection of the shot, carries a plate

  29 shielding to protect it from rebounds of shot.

  A seal cover 30 is also disposed on the outer side at the location of the joint existing between two successive panels 25. Each of these joints is made of elastic material and has, on the inner side, a tongue 31 fixed to the edge of one corresponding panels. The inner plates 27 have, on their vertical sides, flanges 32 and 33 nested one inside the other. The profile of these edges

  is such that they ensure the tightness of the curtain wall corres-

  laying against the risk of passing bounces of shot, while allowing the articulation of the panels

  in relation to each other for the curving of the curtain walls.

  This articulation is provided by means of a number of connecting hinges 34a, 34b and 34c distributed over the height of the panels, for example three. In addition, as shown in Figure 2, the axes 35 of the hinges 34a, provided at the top, serve to ensure the suspension of the two curtain walls 13. Indeed on each of these axes is articulated a yoke 36 carrying a roller 37 taking support

on the suspension rail 20.

  As for the axis 38 of the hinges 34c, provided at the bottom, it is extended downwards by a portion carrying a wheel 39 engaged inside the lower slideway

24 guide (see Figure 3).

  The two curtain walls 13 are attached to the vertical uprights

  corresponding shims 7 of the frame 2 by means of two panels 40 may have a similar structure to that of the panels 25. Thus these two curtain walls form, with the frame 2, an assembly that can be moved in one piece in the horizontal direction by sliding along the beam 14 and along the rail 20. This translational movement is controlled by the operator by operating the motor 16 in one direction or the other. In such a case one of the curtain walls is pushed by the frame 2, while the other

is pulled by this one.

  The frame 2 can then be moved from one of the ends

  beams 14 to the other, between the drawn position 2a

  in phantom lines on the left side of Figure 1 and the posi-

  symmetrical right. In each of these extreme positions

  the curtain wall 13, located on the side of the end near which is placed the frame 2, is wound on the corresponding curved end 22 of the rail 20 and on the respective end of the slide 24. In Figure 1 this is the

  case for the curtain wall on the right. Thus, the ends

  20 of the rail 20 and slide 24 constitute

  sort of sidings reducing the overall clutter

  ble of the installation in the direction of the length.

  In this regard it should be noted that the sliding of the two curtain walls 13 on these recurved garage tracks is

  made possible by the fact that these curtain walls can be

  curver on their face turned inward. This results from the realization of these curtain walls by means of the narrow panels 25 articulated one after the other and the fact that the yokes 36, carrying the suspension rollers of these panels, can freely pivot about the axes 35 their

serving as a support.

  The length of the curtain walls 13 obviously depends on

  the total length planned for the installation. The upper rail

  10 and the lower slide 14 therefore extend,

  beyond the ends of the beam 14, by parties

  whose length may be greater or smaller depending on the case. The corresponding ends of this rail and slide may be simply bent as provided in the accompanying drawing or spirally wound to allow the curtain walls to be wound on themselves. However these curved ends can also be a kind of way back for the curtain walls, behind the area

of displacement of the nacelle 1.

  As already indicated, the translation of the assembly formed by the frame 2 and the two curtain walls is controlled by the motor 16. However, in the case of a very long installation, one or more motors may be provided.

  additional parts for the curtain walls themselves.

  same. The main advantage of the installation according to the invention lies in the fact that the mobile nacelle 1 carrying the projection lance can be moved not only in the vertical direction, but also in the horizontal direction. Under these conditions, this lance can scan an area of great length corresponding to the length of the parts to be treated, which avoids the need to arrange them on trolleys to scroll in front of the projection lance. Of course

  the length of the installation may be more or less

  following you the length of the parts to be treated.

  In the case of blasting of a series of identical pieces

  or a series of important parts, it is possible to predict the programming of the horizontal displacements of the frame 2 and the vertical displacements of the nacelle 1 according to a determined cycle. In such a case it is possible to also provide a mechanized manipulator to print the lance the various successive movements required and this, according to a programming that can then be combined with that of the horizontal and vertical movements of the nacelle. This makes it possible to transform the present installation into a

sort of shot blasting robot.

  The necessary seals in the lower part and in the upper part, on both sides of the curtain walls, are provided by sheets arranged in a baffle. In this respect it is advisable

  to recall that the particular structure of

  The abutments of these curtain walls also provide

  Wanted to avoid the passage of bounces of shot.

  In addition, the structure of these panels has the advantage of providing the necessary soundproofing thanks to the insulating gasket

  28 provided inside the caissons 26.

  However, the installation according to the invention is not limited to the single embodiment described above because it is merely an example. Thus, instead of being constituted by a series of articulated slats or panels,

  the curtain walls 13 could consist of flexible elements

  continuous wipes having an abrasion-resistant surface on the side facing the shot blasting cabin. For its part

  the frame of the installation could be realized differently.

  Moreover, instead of being suspended from a horizontal beam, the mobile frame 2 could be supported on the ground by being

  movably mounted on one or more guide rails.

Claims (7)

  1 - Installation according to claim 1 of the Patent Prin-   for blasting pieces of any shape by means of a movable lance, mounted on a pod that can receive the operator and which is movable vertically on a vertical frame, characterized in that this vertical frame   cal (2) is movably mounted along a horizontal guide path   zontal and in that, on either side of this frame, there are provided two curtain walls (13) attached to its corresponding vertical sides and also mounted movable along a horizontal guide path parallel to that providing guidance   of the frame (2) carrying the basket (1), a training device   being provided for moving in one direction   or in the other, of the mobile assembly thus formed.   2 - Installation according to claim 1, characterized   in that the two curtain walls (13) are flexible or articulated   curved so as to be curved and their guide path   horizontally, extends in one direction or the other,   beyond the ends of the guide path of the vertical frame (2), by curved ends on the opposite side of the shot blasting cabin to form sidings of the curtain walls,   in order to limit the size of this installation.   3 - Installation according to claim 2, characterized in that each curtain wall (13) is constituted by a series of vertical slats or vertical panels (25) relatively narrow, articulated one after the other and which are suspended by   intermediate rollers (37) to a horizontal rail   tal (20) constituting their horizontal guiding path.   4 - Installation according to claim 3, characterized in that the lower edge of the two curtain walls (13) is   engaged in a horizontal guide rail (24) parallel the upper rail (20).   - Installation according to one of claims 3 and   4, characterized in that the slats or hinged panels (25) of the two curtain walls each consist of a metal box (26) whose side facing the projection of shot carries a shield plate (29), while the vertical sides of its opposite face (27)   have covering edges (32, 33) suitable for   the curving of each curtain wall on its correspon-   dante. 6 - Installation according to claim 5, characterized   in that, on their face turned towards the direction of pro-   the curtain walls comprise a series of resilient covers (30) arranged at the intervals between the various successive vertical panels. (25).   7 - Installation according to one of the preceding claims   characterized in that the horizontal guide path of the vertical frame (2) carrying the nacelle (1) consists of a horizontal beam (14) to which it is suspended by means of rollers (15), the lower part of this casting taking support, via   of rollers, on a guide section (18).   8 - Installation according to claim 8, characterized in that the drive, in horizontal translation, of the   vertical frame (2) and curtain walls (13) attached thereto   it is ensured by a motor roller (15) placed in contact with   the beam (14) to which this frame is suspended.   9 - Installation according to one of claims 1 to 6,   characterized in that the movable frame (2) carrying the nacelle (1) bears on the ground while being movably mounted on one or several guide rails.