WO2010112681A1

WO2010112681A1 - Locking device for a vibrocompacting device, and compacting device provided with such a locking device

Info

Publication number: WO2010112681A1
Application number: PCT/FR2009/050536
Authority: WO
Inventors: Jean-François Andre; Sylvain Taxonera
Original assignee: Solios Carbone
Priority date: 2009-03-30
Filing date: 2009-03-30
Publication date: 2010-10-07

Abstract

The invention relates to a vibrocompacting device, in particular for forming molded carbon blocks, including: at least one tubular mold (1) with vertical axis and which is securable to a vibrating table (2) that forms the bottom of the mold, and which is capable of being vibrated by an actuating means (5); a pressing weight (3) capable of being inserted into the mold (1) through the top end thereof; and a cover (13) capable of closing said mold (1) at the top end thereof. Said device is characterized in that it comprises a means for controlling and locking the mold (1) onto the vibrating table (2) and a means for locking the cover (13) onto the mold (1), said means being combined and consisting of at least one actuating means (100) including a stationary portion (101) secured to the vibrating table (2) and a mobile portion (102), one end of which engages with a mobile member (103, 118) capable of engaging with a stationary member (110; 121) secured to the cover (13), and with a stationary member (107) secured to the mold (1).

Description

LOCKING DEVICE FOR COMPACTION DEVICE BY VIBROTASSING, AND COMPACTION DEVICE EQUIPPED WITH SUCH A DEVICE

LOCKING DEVICE

FIELD OF THE INVENTION

The present invention relates to a vibrocompaction compaction device, particularly for forming carbonaceous blocks molded from a liquid pitch paste and crushed coke to produce electrodes, in particular anodes for the electrolysis of aluminum, and invention relates more particularly to combined means of maneuvering and locking a mold with respect to a vibrating table, and locking a cover on the mold of said compaction device, these means being arranged in a locking device for the compaction device.

BACKGROUND OF THE INVENTION

It is well known compaction devices by vibrocompaction essentially comprising a tubular mold removably mounted on a vibrating table constituting the bottom of the mold and an pressing mass adapted to be introduced axially into said mold by an axial end of the mold. The vibrating table is secured to a frame by means of suspension means and is subjected to vibrations in a direction substantially along the axis of the mold, under the effect of vibration actuating means.

This is the case, for example, of US Pat. No. 3,767,351, which describes a device for manufacturing blocks, and more particularly block anodes, from granules. The device consists of a table mounted on springs and receiving a mold, said mold being removably secured to said table. The shaking table comprises at least two unbalanced rotating parts, which are mounted and rotated so that the transverse components (relative to the axis of the mold), oscillations they generate in the table, s 'cancel. The rotation of said unbalanced parts causes a substantially harmonic and axial oscillation of the shaking table, the granules introduced into the mold thus being compressed by vibration in the form of a compact block. Numerous improvements have been made to this type of device which now includes, in the usual manner, a vacuum system and / or a so-called "back-pressure" device.

Such a known improved device, represented in FIGS. 1 to 3 of the present application, is then essentially constituted by a tubular mold 1 of substantially vertical axis, of generally parallelepipedal shape, movable vertically and removably mounted on a vibrating table 2 and a pressing mass 3. After introduction into the mold 1 of a paste 4 composed of liquid pitch and crushed coke, and closure of the mold 1 by a removable cover 13 which is locked on the mold 1, the pasty mixture is compacted under the effect of the hammering of the pressing mass 3. For this purpose, the bent trees 5 rotate in opposite directions and induce an excitation in the table 2 which then takes a vertical sinusoidal movement. Usually, the table 2 is installed on an elastic suspension 6 to limit vibration transmissions to the ground 7 and / or in the vicinity of the device. The lower end of the pressing mass 3, called the impression 8, penetrates inside the mold 1 to give the shape of the top of the molded block. Under the effect of the vertical movements that the table 2 communicates with the dough 4, the pressing mass 3 bounces on top of the block being formed.

Said mold 1 is conventionally mounted on vertically sliding guides 9a in sleeves 2a, secured to the table 2 and is actuated by hydraulic cylinders 10 connected by the free end of their rod to the mold 1 and by the lower end of their cylinder at the table 2, said hydraulic cylinders 10 providing the clamping functions of the mold 1 on the table 2 and demolding by lifting the mold 1 above the table 2 to allow the lateral removal of a molded block from above the table 2. Moreover, the compaction device comprises a so-called backpressure device

12 secured to the lid 13 sealingly closing the upper part of the mold 1 by means of mechanisms 15 for releasably closing the lid 13 on the mold 1 (see Fig. 1), and displaceable vertically with the pressing mass 3 relative to the mold 1 by external means such as a winch or a hydraulic cylinder 11, combined with a vacuum system and secured to a frame (not shown), being guided by vertical guides 9b of the cover 13 in sleeves Ib secured to the mold 1. Said cover 13 ensures the tight closure of the mold 1 and provides a support for the counter-pressure device 12 which pushes the pressing mass 3 towards the paste 4 and the table 2. The back pressure device 12 comprises at least one expansible device, generally at least one pneumatic cylinder 14 which is installed between the cover 13, against which it bears and the pressing mass 3, which pushes down. Each pneumatic jack 14 has its upper and lower bottoms respectively secured to the cover 13 and to the pressing mass 3 and is inflated with compressed air during all or part of the compaction phase, the source of compressed air not being shown in the figures.

In this way, a vertical downward force is generated on the pressing mass 3 during said compaction phase. This force opposes, on the one hand, the rebound of the pressing mass 3 on the paste 4, and, on the other hand, increases the energy developed at the impact of the pressing mass 3 on said paste 4. This back pressure device 12 significantly improves the results of compaction and stabilize the movements of the pressing mass 3 during compaction.

Moreover, with reference to FIGS. 1 and 3, the compaction device comprises mechanisms 15 for sealing the cover 13 on the upper end of the mold 1 in such a way that the cover 13 is clamped on the mold 1 during the compaction and that said lid 13 can be removed with the pressing mass 3 to allow the filling of the mold 1 with the paste.

The clamping means of the cover 13 on the mold 1 consist of a plurality of hook locks 15, generally four hook locks, two hook locks secured to each of two opposite sides of the mold 1. Each hook lock 15 is constituted, with reference to FIG. 3, a link 16 whose first end is articulated to the mold 1 and whose opposite end is articulated in the middle part of a lever 17. One of the ends of the lever 17 is free and forms a hook 18 adapted to cooperate with one of lugs 19 forming a latch and secured to the lid 13, and the other end of the lever 17 is articulated to the rod 20 of a hydraulic cylinder 21 whose body 22 is articulated to the mold 1, the articulation point of the body 22 of the hydraulic cylinder 21 being positioned below the articulation of the rod 16 to the mold 1. The hydraulic cylinder 21 of each hook latch 15 is powered by a hydraulic motor not shown in the figures. The retraction of the rod 20 in the body 22 of the jack 21 controls the pivoting of the lever 17 whose hook 18 releases the lug 19 and disengages the lid 13 of the mold 1. Conversely, the outlet of the rod 20 out of the body 22 of the cylinder 21 controls the pivoting in the opposite direction of the lever 17, whose hook 18 clings to the lug 19 and secures (or flanges) the lid 13 to the mold 1. This type of device comprises a large number of onboard accessories, such as hydraulic cylinders, sensors and position controllers, or other actuators, which constitute a dead mass that must be set in motion, the means generating the vibrations being then unnecessarily oversized to get enough vibration levels.

Moreover, all these embedded accessories undergo the same stresses as the mold 1, the cover 13 and the pressing mass 3, that is to say intense vibrations and shocks, so that these embedded accessories are more fragile than the structures of the device, these embedded accessories alter the reliability of the device, especially as they are numerous.

BRIEF DESCRIPTION OF THE INVENTION

One of the aims of the invention is therefore to remedy these drawbacks by proposing a vibrocompaction compaction device of simple design, inexpensive and comprising means which ensure the lifting of the mold relative to the table and the clamping of the mold on the table and lid on the mold by means of a limited number of identical components each fulfilling these different functions.

Another object of the invention is to allow the clamping and lifting operations of the mold quickly by performing them in a single maneuver.

Yet another object is to provide a compaction device whose mechanical structures are lightened by appropriate placement of said lifting and clamping means and requiring only a minimum of attachment points, while facilitating maintenance and maintenance, with a device easy to install as to disassemble. For this purpose, according to the invention, there is provided a device for compaction by vibrotassage, for the forming of carbonaceous blocks in particular molded, comprising at least one tubular mold of substantially vertical axis, adapted to be removably secured to a vibrating table constituting the bottom of the mold and adapted to be subjected to vibrations by actuating means, a pressing mass capable of being introduced axially into the mold, by the axial upper end of the mold, a cover adapted to close with sealing said upper end of said mold, means for maneuvering, for lifting and lowering the mold relative to the table, and locking the mold on the vibrating table, and lid locking means on the mold, characterized in that said maneuvering and locking means of the mold and the cover are combined and constituted by at least one actuating means comprising a fixed part integral with the vibrating table and a movable part whose end cooperates with a movable member adapted to cooperate with a fixed member integral with the lid and a fixed member integral with the mold.

Advantageously, said at least one actuating means consists of a jack whose body is integral with the vibrating table and whose rod cooperates with the movable member of a lock also comprising said fixed members of the mold and / or the cover.

In a first embodiment, the jack comprises means for driving the rod about its axis in rotation.

According to an advantageously simple arrangement, the jack comprises a helical ramp formed in a tube integral with the body of the jack and in which slides a lug integral with the rod and / or the piston of said jack.

In this case, the rod of the cylinder is preferably hollow and the tube comprising the helical ramp extends inside the rod coaxially with the latter.

In addition, the device may advantageously comprise, at the free end of the cylinder rod, a bolt constituted by a cylinder provided at its free end with at least one radial protrusion, said bolt being, on the one hand, engaged in a first day practiced in a flange secured to the mold and of circular section slightly greater than the circular section of the cylinder of the bolt, said flange comprising at least one hollow extending radially from the first day and adapted to receive the radial protuberance of the bolt, and secondly, adapted to engage in a second day practiced in a flange secured to the lid, the second day having a central circular hole of diameter slightly greater than the outer diameter of the cylinder of the bolt and at least one lateral hole extending radially from said central hole of the second day to allow passage of said at least one radial protuberance. In addition, and advantageously, the substantially rectangular shaped hole of the second day of the lid flange is angularly offset with the also substantially rectangular shaped hollow extending radially from the first day of the flange of the mold at an angle of about 90 °, so that by a rotation of 90 °, one can go from a locking position of one of the cover and the mold to an unlocked position. Advantageously, the bolt may comprise two diametrically opposed radial protuberances, and said first and second days respectively have two diametrically opposite recesses and two radial holes from said first day or central circular hole of the second day, and, furthermore, each radial protrusion may present a parallelepipedic shape. Finally, the device may advantageously furthermore comprise a ring secured to the free end of the jack rod and having a cross section greater than the cross section of the central hole of the first day, and constituting a stop for lifting the mold by its flange. using the cylinder. In a second embodiment, the lock of the compaction device comprises a hook comprising a body, one end of which is terminated by a bent portion adapted to catch on a rod integral with a flange of the cover and the other end of which is articulated at the free end of the cylinder rod about an axis projecting from either side of the body of the hook, the projections of the axis sliding in rectilinear grooves extending substantially parallel to the rod of the cylinder and made in wings projecting outwardly from one of the walls of the mold, near the upper edge of said mold.

The hook may further comprise a second axis substantially parallel to the first axis and projecting from either side of the body of the hook, the projections of said second axis sliding in curvilinear grooves also formed in said wings of the mold. In this case, it is advantageous that each curvilinear groove has two rectilinear segments extending respectively parallel and perpendicular to the rectilinear groove in the corresponding wing of the mold and a curvilinear part connecting the two rectilinear segments and whose convexity is oriented towards the the upper end of the mold, and, in addition, each curvilinear groove may extend between the rectilinear groove and the distal end of the corresponding flange of the mold, and, in addition, each curvilinear groove may extend substantially to half -Height of the rectilinear groove.

The subject of the invention is also a locking device intended for a vibro-compaction compaction device, for forming molded carbonaceous blocks in particular, comprising at least one tubular mold with a substantially vertical axis, able to be removably attached to a vibrating table. constituting the bottom of the mold and adapted to be subjected to vibrations by actuating means, a pressing mass capable of being introduced axially into the mold by the upper axial end of the mold and a cover able to close with sealing said end upper part of said mold, characterized in that it consists of at least one actuating means comprising a fixed part integral with the vibrating table and a movable part whose end cooperates with a movable member adapted to cooperate with a fixed integral member the lid and a fixed member secured to the mold so as to allow the locking, on the one hand, of the mold on the table vi brante, and, secondly, the lid on the mold.

According to a first embodiment of this locking device, the latter comprises, at the free end of a rod of a jack whose body is integral with the vibrating table, a bolt consisting of a cylinder provided at its end. free of at least one radial protrusion, said bolt being, on the one hand, engaged in a first day practiced in a flange integral with the mold and of circular section slightly greater than the cross section of the cylinder of the bolt, said flange comprising at least a hollow extending radially from the first day and adapted to receive said radial protuberance of the bolt, and secondly, adapted to engage in a second day practiced in a flange integral with the lid, the second day having a central circular hole of diameter slightly greater than the outer diameter of the cylinder of the bolt and at least one lateral hole extending radially from the central hole of the first day to allow the passage of said radial protrusion. Alternatively, according to a second embodiment of this locking device, the latter comprises a hook having a body whose end is terminated by a bent portion adapted to hook on a rod integral with a lid flange and of which the other end is articulated to the free end of a rod of a jack, whose body is integral with the vibrating table, about an axis projecting from either side of the body of the hook, the projecting parts the axis sliding in rectilinear grooves extending substantially parallel to the cylinder rod and formed in flanges projecting outwardly from one of the walls of the mold, close to the upper edge of said mold, the hook having a second axis substantially parallel to the first axis and projecting from either side of the body of the hook, the projections of said second axis sliding in curvilinear grooves also practiced in the said mold wings and convexity facing the upper end of the mold and extending between the rectilinear grooves and the distal ends of the mold wings.

BRIEF DESCRIPTION OF THE DRAWINGS

Other advantages and characteristics of the invention will emerge more clearly from the following description of several variant embodiments, given by way of non-limiting examples, of the vibrotassage compaction device according to the invention, with reference to the drawings. attached, in which: - Figure 1 is a perspective view of a vibrocompaction compaction device of the prior art,

FIG. 2 is a view in side elevation and vertical section of the vibrocompaction compaction device of the prior art shown in FIG. 1;

FIG. 3 is a sagittal sectional view of the means for clamping the lid of the device on the mold of a device of the prior art as represented in FIGS. 1 and 2, FIGS. 1 to 3 being already described below; above,

FIG. 4 is a perspective view of the vibro-compaction compaction device according to the invention, FIG. 5 is a perspective view of the mold locking means on the vibrating table, and of the lid on the mold of the vibrotassage compaction device according to the invention,

FIG. 6 is a view partly in vertical section and partly in elevation of the jack and bolt of the locking means of the vibro-compaction device according to the invention,

FIG. 7 is a vertical sectional view of the jack carrying the locking bolt of the vibro-compaction compaction device according to the invention; FIGS. 8A to 8E are partial perspective views of the various stages of locking the mold on the vibrating table and cover on the mold of the device according to the invention,

FIG. 9 is an exploded sagittal sectional view of an alternative embodiment of the mold locking means on the table and of the cover on the mold of the vibrocompaction compaction device according to the invention,

FIG. 10 is a schematic side view of the locking means of the vibro-compaction compaction device shown in FIG. 9, and

1A to 11D are partial perspective views of the means of FIGS. 9 and 10 of locking the mold on the vibrating table and the lid on the mold during the various locking steps.

DETAILED DESCRIPTION OF THE INVENTION

A vertical vibrocompaction compaction device for forming molded anode blocks, in particular from a paste composed of liquid pitch and crushed coke, is described below by way of non-limiting example; nevertheless, the locking means of the device according to the invention can be adapted to any other compaction device by vertical vibrotassage, from granules or any other material, without departing from the scope of the invention.

With reference to FIG. 4, the vibrocompaction compaction device according to the invention comprises, in the usual manner and as already described with reference to FIGS. 1 and 2, a tubular mold 1 removably fixed on a vibrating table 2 and an pressing mass 3 supported under a cover 13 of removable and waterproof closure of the upper end of the mold 1, with the interposition of a back-pressure device between the cover 13 and the pressing mass 3, which is introduced and can be moved vertically in the mold 1, of generally parallelepipedal shape with a vertical axis . Said machine furthermore comprises two opposing rotary-action shafts 5 which induce an excitation in the table 2 which then takes a vertical sinusoidal movement. Incidentally, the table 2 is installed on an elastic suspension 6 intended to limit vibratory transitions to the ground 7 and / or in the vicinity of the device.

Furthermore, the device comprises a system 11 for vertical displacement and evacuation secured to the cover 13 and the pressing mass 3. It is observed that the device (not shown in FIG. 4), known as "against-pressure", can consist of at least one inflatable cylinder positioned against the underside of the lid 11 and the upper face of the pressing mass 3.

In addition, the compaction device comprises releasable locking means, on the one hand, of the mold 1 on the vibrating table 2, and, on the other hand, of the cover 13 on the mold 1.

According to the invention, with reference to FIGS. 4, 5 and 6, the locking means consist, on each of the two long sides of the mold 1, of a jack 100 for maneuvering the mold 1, for its lifting and lowering relative to at the table 2, and whose body 101 is secured by its lower end of the vibrating table 2 and / or the chassis carrying the vibrating table 2, and whose free end of the rod 102 cooperates with a movable member 103 of a lock 104. The movable member 103 of the lock 104, with reference to Figures 5 and 6, consists of a cylindrical bolt articulated about an axis 105 at the upper end of the rod 102 of the cylinder 100, said cylindrical bolt 103 , having, at its opposite free end, two diametrically opposed radial protuberances 106, each of the protuberances having a substantially parallelepiped shape. Said bolt 103 is axially or vertically engaged in a day 107 of circular section formed in a substantially horizontal flange 108 integral with the mold 1, and projecting outwardly thereof. Said flange 108 comprises two rectangular recesses 109 extending radially on either side of the day 107, and since that day 107, and opening in the upper face of the flange 108 delimiting two parallelepipedal recesses able to receive the excrescences radial radial 106 of the bolt 103, the depth of the recesses 109 being substantially equal to the height of the radial protuberances 106. Said bolt 103 is also adapted to engage in a second day 110 formed in a substantially horizontal flange 111 secured to the cover 13 and protruding towards the outside of the latter, the second day 1 10 having a central circular hole 110a of diameter slightly greater than the outside diameter of the cylindrical bolt 103 and two rectangular lateral holes HOb extending radially and diametrically opposite on both sides of the central hole 110a and from the latter to allow the axial or vertical passage of the radial protuberances 106. us rectangular 10b of the second day 110 of the flange 111 of the cover 13 are angularly offset with the rectangular recesses 109 extending radially on either side of the day 107 of the flange 108 of the mold 1. In this particular embodiment, the rectangular holes 1 10b of the second day 1 10 of the flange 1 11 of the cover 13 are angularly offset with the rectangular recesses 109 extending radially on either side of the day 107 of the flange 108 of the mold 1 at an angle d about 90 °.

The bolt 103, with reference to FIGS. 5 and 6, has at its proximal end

(or lower), a ring 112, at the axis of articulation 105 of the bolt 103 on the free end (upper) of the rod 102 of the cylinder 100, said ring 105 having an outer diameter greater than the outer diameter of the cylinder of the bolt 103 and the corresponding day 107 of the flange 108 of the mold 1.

It is obvious that other forms of bolt 103 and days 107, 110 forming strike can be envisaged without departing from the scope of the invention.

Furthermore, with reference to FIG. 7, the jack 100 includes means for rotating its rod 102 about its longitudinal axis, which is substantially vertical in order to allow the bolt 103 to rotate about this longitudinal axis of the rod.

102 and the jack 100, simultaneously with the vertical displacement of the rod 102 of the jack 100. The latter comprises a body 101, a piston 113 sliding inside the cylindrical body 101 of the jack 100, and a cylindrical hollow rod 102 projecting from said body 101, said hollow rod 102 being integral with the piston 113. Said cylinder 100 further comprises a cylindrical tube 114 integral with the body 101 of the cylinder 100 and extending coaxially with the body 101 and the rod 102, inside. of said rod 102. This cylindrical tube 114 comprises a ramp or helical groove 115 in which extends a lug 116 secured to the piston

113 and the rod 102. Thus, the axial displacement of the rod 102 also causes its rotation about its axis of displacement. Indeed, during the axial displacement of the piston 113 and the rod 102 in the body 101, the lug 116 slides in the helical ramp 115 inducing a rotation of the rod 102 about its axis of revolution.

It goes without saying that the position of the helical ramp 115 inside the body 101 of the jack 100, its length and its angle of inclination, the beginning and the end of the rotation, its speed and its amplitude can be easily adjusted. by the skilled person.

Moreover, it goes without saying that the helical ramp 115 can be arranged in a member extending outside the body 101 of the jack 100 and / or can be substituted for said jack 100 any actuating means for simultaneously or successively a translation and rotation of the bolt 103 of the locking means without departing from the scope of the invention.

Incidentally, the cylinder 100 has at its proximal end (or lower), that is to say on the bottom of the body 101 of said cylinder 100, a position sensor 117 adapted to control the position of the rod 102 of the cylinder 100 in his body 101 and to provide information on the position of the latch bolt 103 (and therefore the angular position of the protrusions 106 relative to the recesses 109 of the flange 108 of the mold 1 and the side holes 1 10b of the flange 1 1 1 of the cover 13) for the purpose of enslavement for example.

The operation of the locking means of the vibro-compaction compaction device is now explained with reference to FIGS. 8A to 8 E.

With reference to FIG. 8A, the jack 100 is in the retracted position, that is to say that the piston 1 13 is in the lower position in the body 101 of the jack 100, and the radial protuberances 106 of the bolt 103 hinged to the rod 102 of the cylinder 100 are housed and bear in the recesses 109 of the flange 108 of the mold 1. In this way, said mold 1 is clamped on the table 2 of the compaction device by vibrocompaction. At the beginning of the extension stroke of the jack 100, thus the output of the rod 102, with reference to FIG. 8B, the radial protuberances 106 of the bolt 103 come out of the recesses 109 of the flange 108 of the mold 1, thus making it possible to unclamp the mold 1 relative to the table 2. During the advancement of the stroke of the rod 102 of the cylinder 100, with reference to FIG. 8C, said rod 102 pivots about its longitudinal axis in a quarter of a turn, that is to say 90 °, rotating the bolt 103 of the locking means. At the same time, the ring 112 secured to the free end of the rod 102 of the jack 100 forms a stop that bears on the lower face of the flange 108 of the mold 1 to lift the latter relative to the table 2. Next , the cover 13 is positioned above the mold 1 by an external device 11 such as a cylinder or a hook winch in the environment of the machine, to cover the mold 1 so that the days 110 of the flange 111 the lid 13 extend opposite the days 107 of the flange 108 of the mold 1. When capping the cover 13 on the mold 1, for each cylinder 100, the bolt 103 passes through the day 110 facing the flange 111 cover 13 (Figure 8D). Then, with reference to FIG. 8E, under the effect of the gravitational forces, the rod 102 of the hydraulic jack 100 enters its body 101 and the mold 1 and the lid 13 descend. Upon retraction of the rod 102 of the cylinder 100 in the body 101, said rod 102 is rotated in the opposite direction at an angle of 90 °, so that the protrusions 106 of the bolt 103 of the locking means are based on the upper face of the flange 111 of the cover 13 thus making it possible to clamp the mold 1 and simultaneously the cover 13 on the table 2.

According to an alternative embodiment shown in FIGS. 9 to 1 ID, the two sets of latch and latch locking means (one set per large side of the mold 1) are replaced by two sets of hook locking means, each of which together comprises a double-acting jack, such as the jack 100 of the preceding figures, partially shown in Figures HA to HD, whose body 101 is integral with the vibrating table 2 and / or the frame of this table, and whose rod 102 cooperates with a movable member 18 in the form of a hook. Said locking means comprise a hook January 18 having a body January 19, one end is terminated by a bent portion 120 adapted to cooperate with a rod 121 integral with a flange 122 of the cover 13, so as to hook on the rod 121, and whose other end is articulated to the free upper end of the rod 102 of the cylinder 100 about an axis 123 projecting on either side of the body 119 of the hook 118, the projecting parts of the axis 123 extending and sliding in rectilinear grooves 124 extending substantially parallel to the rod 102 of the cylinder 100 and formed in wings 125, substantially parallel to each other and vertical plane, extending perpendicularly to one of the walls of the mold 1, near the upper edge of said mold 1.

Furthermore, the hook 118 has a second axis 126 projecting from either side of the body 119 of the hook 118, said second axis 126 being offset (upwardly and outwardly of the mold 1) relative to the first axis 123 and the projections of said second axis 126 extending and sliding respectively in second branches 127 of substantially curvilinear shape formed in the wings 125 of the mold 1. Each second curvilinear groove 127 has two straight segments 128a and 128 ^ extending respectively parallel and perpendicular to the rectilinear groove 124, and a curvilinear portion 129 connecting the two straight portions 128a, 128b and whose convexity is oriented towards the upper end of the mold 1. Each segment 128a, 128b of curvilinear groove 127 extends, in the corresponding wing 125, between the rectilinear groove 124 and the distal (or external) end of the flange 125, substantially at mid-height of the straight groove Rticale 124.

The operation of this alternative embodiment of the locking means of the vibrocompaction compaction device according to the invention is now explained with reference to FIGS. When the rod 102 of the cylinder 100 is in the lower position, with reference to FIG. 1A1, the first axis 123 of the hook 118 is positioned at the lower end of the vertical rectilinear grooves 124 and the second axis 126 of the hook 118 is positioned at the lower end of the curvilinear grooves 127 forcing the hook 118 in the vertical position so that the curved portion 120 forming a hook clings to the rod 121 secured to the flange 122 of the cover 13. In this position, the hook 118 allows clamping the cover 13 on the mold 1 and said mold 1 on the table 2. When raising the rod 102 of the jack 100, with reference to FIG HB, the first axis 123 of the hook 118 moves upwards in the vertical rectilinear grooves 124 and the second axis 126 moves in the curvilinear grooves 127 until the first axis 123 extends to the upper end of the vertical rectilinear grooves 124 and the second axis 12 6 extends to the distal end of the second curvilinear grooves 127. In this way, the hook 118 is tilted horizontally, releasing the curved portion 120 forming a hook of the rod 121 secured to the flange 122 of the lid 13 of such way that the lid 13 is unbridled of the mold 1, itself unrestrained from the table 2. By continuing the rise of the rod 102 of the cylinder 100, with reference to Figure HC, the first axis 123 and the second axis 126 are abutted respectively at the upper end rectilinear vertical grooves 124 and the distal end of the curvilinear grooves 127 thus allowing the lifting of the mold 1 relative to the table 2 and / or the frame. To allow the clamping of the lid 13 on the mold 1 and the mold 1 on the table 2, with reference to FIG. 1 ID, the lid 13 is positioned on the mold 1, then the rod 102 of the jack 100 is lowered causing the translation downward from the axis 123 of the hook in the vertical rectilinear grooves 124. The downward movement of the axis 123 in the vertical rectilinear grooves 124 causes the hook 118 to rotate and then, when the axis 123 of the hook is below the second axis 126 of said hook 118, the downward translation of the rod 102 of the jack provides the displacement of the second axis 126 of the hook 118 in the curvilinear grooves 127 to engage the curved portion 120 forming a hook with the rod 121 integral with the flange 122 of the cover 13.

It goes without saying that the vibro-compaction compaction device may have neither a vacuum system nor a back-pressure device, without departing from the scope of the invention.

Finally, it is obvious that the examples that have just been given are only particular illustrations, in no way limiting as to the field of application of the invention.

Claims

1. Device for compaction by vibrotassage, for the forming of carbonaceous molded blocks in particular, comprising at least one tubular mold (1) of substantially vertical axis, adapted to be removably secured to a vibrating table (2) constituting the bottom of the mold and capable of being subjected to vibrations by actuating means (5), an pressing mass (3) capable of being introduced axially into the mold (1), by the axial upper end of the mold (1), a cover (13) capable of sealing said upper end of said mold (1), means for maneuvering, for lifting and lowering the mold (1) with respect to the table (2), and for locking the mold (1 ) on the vibrating table (2), and locking means of the lid (13) on the mold (1), characterized in that said means for maneuvering and locking the mold (1) and the lid (13) are combined and consisting of at least one actuating means (100) comprising a portion xe (101) secured to the vibrating table (2) and a movable portion (102) whose one end cooperates with a movable member (103,118) adapted to cooperate with a fixed member (110; 121) secured to the cover (13) and a fixed member (107) integral with the mold (1).

2. Device according to the preceding claim characterized in that said at least one actuating means consists of a jack (100) whose body (101) is integral with the vibrating table (2) and whose rod (102) cooperates with the movable organ

(103,118) a lock also comprising said fixed members (107 and 110; 121) of the mold

(1) and / or cover (13).

3. Device according to claim 2 characterized in that the cylinder (100) comprises means (114, 115, 116) for rotating the rod (102) about its axis.

4. Device according to claim 3 characterized in that the cylinder (100) comprises a helical ramp (115) formed in a tube (114) integral with the body

(101) of the cylinder and in which slides a lug (116) integral with the rod (102) and / or the piston (113) of said cylinder (100).

5. Device according to claim 4 characterized in that the rod (102) of the jack is hollow and in that the tube (114) comprising the helical ramp (115) extends inside the rod (102) coaxially to this last.

6. Device according to any one of claims 3 to 5 characterized in that it comprises, at the free end of the rod (102) of the cylinder (100), a bolt (103) consisting of a cylinder provided with its free end of at least one radial protuberance (106), said bolt (103) being, on the one hand, engaged in a first day (107) formed in a flange (108) secured to the mold (1) and section circularly slightly greater than the circular section of the cylinder of the bolt (103), said flange (108) having at least one hollow (109) extending radially from the first day (107) and adapted to receive the radial protuberance (106) bolt (103), and secondly, adapted to engage in a second day (110) made in a flange (111) integral with the lid (13), the second day (110) having a central circular hole of diameter slightly greater than the outer diameter of the cylinder of the bolt (103) and at least one lateral hole extending radially from the said central hole of the second day to allow the passage of said at least one radial protuberance (106).

7. Device according to claim 6 characterized in that the hole of substantially rectangular shape (109) of the second day (110) of the flange (111) of the cover (13) is angularly offset with the hollow also substantially rectangular shape (109). ) extending radially from the first day (107) of the flange (108) of the mold (1) at an angle of about 90 °.

8. Device according to any one of claims 6 and 7 characterized in that the bolt (103) comprises two diametrically opposed radial projections (106), and said first and second days (107, 110) have two recesses (109) respectively. and two diametrically opposed radial holes from said first day or central circular hole of the second day.

9. Device according to any one of claims 6 to 8 characterized in that each radial protrusion (106) has a parallelepiped shape.

10. Apparatus according to any one of claims 6 to 9 characterized in that it comprises a ring (112) secured to the free end of the rod (102) of the cylinder (100) and of greater cross section to the section transverse of the central hole of the first day (107), and constituting an abutment of lifting of the mold (1) by its flange (108) by means of the jack (100).

11. Device according to claim 2 characterized in that the lock comprises a hook (1 18) having a body (119), one end is terminated by a bent portion (120) adapted to hook on a rod (121) solidaire a flange (122) of the cover (13) and whose other end is articulated to the free end of the rod (102) of the cylinder (100) about an axis (123) protruding from both sides of the body (119) of the hook (118), the projections of the axis (123) sliding in rectilinear grooves (124) s extending substantially parallel to the rod (102) of the jack (100) and formed in wings (125) projecting out of one of the walls of the mold (1), close to the upper edge of said mold (1).

12. Device according to claim 11 characterized in that the hook (1 18) has a second axis (126) substantially parallel to the first axis (123) and projecting from either side of the body (119) of the hook (1). 18), the projecting portions of said second axis (126) sliding in curvilinear grooves (127) also formed in said wings (125) of the mold (1).

13. Apparatus according to claim 12 characterized in that each curvilinear groove (127) has two straight segments (128a, 128b) extending respectively parallel and perpendicular to the rectilinear groove (124) in the corresponding wing (125) of the mold (1) and a curvilinear portion (129) connecting the two rectilinear segments (128a, 128b) and whose convexity is oriented towards the upper end of the mold (1).

14. Device according to any one of claims 12 and 13 characterized in that each curvilinear groove (127) extends between the rectilinear groove (124) and the distal end of the corresponding flange (125) of the mold (1). ).

15. Device according to any one of claims 12 to 14 characterized in that each curvilinear groove (127) extends substantially mid-height of the rectilinear groove (124).

16. Locking device intended for a compaction device by vibrotassage, for forming molded carbonaceous blocks in particular, comprising at least one mold (1) tubular substantially vertical axis, adapted to be removably secured to a vibrating table (2) constituting the bottom of the mold and capable of being subjected to vibrations by actuating means (5), an pressing mass (3) able to be introduced axially into the mold (1) by the upper axial end of the mold ( 1) and a cover (13) able to seal said upper end of said mold (1), characterized in that it consists of at least one actuating means (100) comprising a fixed part (101) integral with of the vibrating table (2) and a movable part (102), one end of which cooperates with a movable member (103, 118) adapted to cooperate with a fixed member (110; 121) secured to the cover (13) and a fixed member (107) integral with the mold (1) so as to to allow locking, on the one hand, of the mold (1) on the vibrating table (2), and, on the other hand, of the lid (13) on the mold (1).

17. Locking device according to claim 16 characterized in that it comprises, at the free end of a rod (102) of a jack (100) whose body (101) is integral with the vibrating table (2). ), a bolt (103) consisting of a cylinder provided at its free end with at least one radial protrusion (106), said bolt (103) being, on the one hand, engaged in a first day (107) practiced in a flange (108) integral with the mold (1) and of circular section slightly greater than the cross section of the cylinder of the bolt (103), said flange (108) having at least one hollow (109) extending radially from the first day (107) and adapted to receive said radial protuberance (106) of the bolt (103), and secondly, adapted to engage in a second day (110) formed in a flange (111) integral with the lid (13) the second day (110) having a central circular hole of diameter slightly greater than the outer diameter of the bolt cylinder (103) and at least one lateral hole extending radially from the central hole of the second day to allow passage of said radial protuberance (106).

18. Locking device according to claim 16 characterized in that it comprises a hook (118) having a body (119) whose end is terminated by a bent portion (120) adapted to hook on a rod (121). secured to a flange (122) of the cover (13) and whose other end is articulated to the free end of a rod (102) of a jack (100), whose body (101) is integral with the vibrating table (2), about an axis (123) protruding from either side of the body (119) of the hook (118), the projections of the axis (123) sliding in straight grooves ( 124) sliding substantially parallel to the rod (102) of the cylinder (100) and formed in wings (125) projecting out of one of the walls of the mold (1), near the upper edge said mold (1), the hook (118) having a second axis (126) substantially parallel to the first axis (123) and projecting from either side of the body (11). 9) of the hook (118), the projections of said second axis (126) sliding in curvilinear grooves (127) also formed in said wings (125) of the mold (1) and convex towards the upper end of the mold ( 1) and extending between the rectilinear grooves (124) and the distal ends of the wings (125) of the mold (1)