FR2516099A1 - MACHINE FOR CLEANING ANODES OF ELECTRICAL METAL PRODUCTION - Google Patents

Abstract

THE INVENTION RELATES TO AN ANODA CLEANING MACHINE FOR CLEARING AND POLISHING THE SIX FACES OF PARALLELEPIPEDIC ANODE BLOCKS 15. THE MACHINE ACCORDING TO THE INVENTION INCLUDES IN A CONTAINER 10 A CONVEYOR TRACK FORMING A RIGHT ANGLE AND INTENDED FOR INDIVIDUAL BLOCK-ANODES, A PART OF THE PAIRS OF TOOLS MOUNTING ON ONE OF SECTIONS 13 OF THE TRACK AS WELL AS THE OTHER PART OF THE PAIRS OF TOOLS IS MOUNTED ON THE OTHER SECTION 14 OF THE TRACK. THE TRANSPORT OF THE ANODE BLOCKS 15 ON SECTIONS 13, 14 OF THE SQUARE TRACK IS CARRIED OUT BY MEANS OF SPECIAL PUSH DEVICES 27, 35. PAIRS OF TOOLS MAY BE REGULATED ON THE VARIOUS DIMENSIONS OF THE BLOCKS CONSTITUTING THE ANODES.

Description

Anode cleaning machine.

  The present invention relates to an anode cleaning machine, comprising tools for treating the opposite surfaces of the anode blocks and a conveyor device

  allowing the anode blocks to pass between the tools.

  The anode blocks are used for the electrical production of metals, and in particular of aluminum. Due to the fact that significant inlays or the like are present on the surface of the raw anode blocks, it is necessary to

  clean or polish the surfaces of the blocks.

  Document DE-OS 20 51 288 discloses an installation

  anode cleaning tion in which the charging blocks

  good constituting the anodes are treated or polished precisely on their opposite surfaces, to avoid mutual contact between blocks placed side by side in the melt The device comprises a table on which are arranged the individual anode blocks which are advanced in view of the treatment of their surfaces opposite to

  means of fixed treatment tools But such an installation

  tion can only treat two opposite surfaces of

  anode blocks during each operation.

  The object of the invention is to provide an anode cleaning machine of the type mentioned in the preamble and making it possible to treat or remove incrustations or

  - analogues of the six surfaces of the anode blocks of para- form

  elepepedic, and this in a precise and fast way, and in

step by step.

  According to the invention, this problem is solved by the fact that the anode blocks are placed by a conveyor device on a square track and in that a part of the pairs of tools is mounted on one of the sections of the track. while the other part of the pairs of tools is mounted on the other section of the track at an angle. Advantageously, the assembly is provided so that to treat the three pairs of surfaces of the anode blocks, a single pair of tools in the entry section of the square track, and two pairs of tools in the exit section of the track

square.

  According to one embodiment of the machine, the blocks-

  anodes are treated during two successive sequences and in particular so that during the first sequence, that is to say during the movement of the anode blocks in the entry section of the square track, the one of the pairs of surfaces is treated, while during the

  second sequence immediately following the first, that is

  Read say during the movement of the anode blocks in the exit section of the square track, it is the two other pairs of surfaces of the blockanode of parallelepiped shape which are treated During the treatment, the blocks forming the anodes are advanced as far as stationary tools, and for this purpose preferably knife blocks or the like are used. For transporting the anode blocks through the cleaning machine and towards the pairs of tools, advantageously, according to another development of

  the invention, pushing devices, one of these

  sitives being associated with the entry section of the track, while the other device is associated with the exit section of the track at a right angle The lifting device associated with the entry section of the track is advantageously constituted by at least one push lever or the like which is mounted on a carriage or sled which can run in the direction of the entry section of the runway and which can be moved in height When using a push lever which can be pivoted in height, the blocks of anodes to be worked can be introduced without hindrance into the treatment device. The transport of the blocks on the entry section of the track at right angles is then carried out by moving the carriage or sled along this section of track, the lever- pusher then being lowered and coming to bear against the rear part of the anode block concerned The carriage

  or sled is advantageously guided in the upper part

  of the machine frame in a guide device.

  For the transport of the anode blocks to the exit section of the square track, it is possible to use a pushing device comprising at least one pusher or the like,

moving linearly.

  To adapt the pairs of tools to the various dimensions of the anode blocks, it is advantageous, when the machine is equipped with at least two pairs of tools, that the distance of one of the tools from the other can be adjusted, which is advantageously achieved by mounting the mo Dile tool

  on oscillating rods in parallelogram or the like.

  To precisely treat block surfaces-

  anodes, it is also recommended to have on one side 1 U of the two sections of the track at right angles a guide rail which laterally guides the anode blocks. It is then advantageously provided in the entry section of the track in

  square an alignment device which presses the blocks

  anodes against the guide rail and aligns them against the

tools.

  All the pairs of tools of the cleaning machine according to the invention are advantageously arranged in a

  common frame, which includes the square track and which presents

  te along its sections arranged at right angles to the

  sliding or rolling tracks for anode blocks.

  The control of the pushing devices which move the

  blocks constituting the anodes in the machine according to the invention

  tion can be achieved by means of simple limit switches or the like, by means of which a

  automatic operation of the cleaning machine.

  The invention will now be explained in more detail using an embodiment shown in the accompanying drawings in which:

  Figure 1 is a simplified and schematic plan view

  the anode cleaning machine according to the invention (in the direction of the arrow I in FIG. 2), FIG. 2 is a sectional view along the line II-II of FIG. 1, FIG. 3 is a sectional view along line III-III

of figure 1.

  The anode processing device, or cleaning machine, which is shown, comprises a frame 10 of approximately square shape, which is supported by supports 11 on the ground or on a foundation 12 The frame 10 of the

  machine includes a square track with two sec-

  13 and 14 forming a right angle with each other.

  The carbon blocks 15 forming the anodes which must be treated and whose shape is approximately parallelepepedic circulate on the square track during their treatment They are brought to the cleaning machine in the direction of arrow A on a roller conveyor 16 The roller conveyor 16 extends from the inlet into the frame 10 of the machine, that is to say over a length of the section 13 of the square track which is in the direction of the arrow A To the roller conveyor 16 is connected inside a sliding passage 17 which extends as close as possible to a guide bar 18 at the rear end of the entry side of section 13 of the square track The guide bar 18 is perpendicular to section 13 of the square track which is located on the entry side, that is to say in the longitudinal direction of section 14 of the square track which is located on the exit side Another guide rail 19 is fixed to one side of the section ion 13 of the square track, on the machine frame. To pass the anode block 15 in the section 14 of the square track which is located on the side of the outlet, that is to say in the direction of arrow B, there is provided in the frame of the machine a corridor slip 20 at which

  connects a roller conveyor 21 on the outlet side.

  In section 13 of the square track which is located on the entrance side is associated a pair of tools including

  knife blocks 22 and 23 arranged at a certain distance

  side tance of each other The knife block 22 is disposed at the rear of the guide rail 19 fixedly on the machine frame, while the knife block 23 is mounted so that it can be adjusted related to

  fixed knife block 22 facing it by means of biel-

  the parallelograms 24 fixed to a tool holder-25 of the frame of the machine, so that it is possible to adjust the distance from the fixed knife block 22 This is obtained by means of an adjustment cylinder 26 mounted

  articulated between the knife block 23 and the holder

  knives 25 Using the adjusting cylinder 26 and the support of the knife block 23 by the rods in parallelogram 24, it is therefore possible to adjust the distance between the two knife blocks 22 and 23 according to the variable dimensions of the

blocks forming the anodes 15.

  To transport the anode block 15 on section 13 of

  the square track, a pushing device 27 is provided.

  This consists of a carriage or sled 28 which can be moved by means of wheels 29 on rails of

  guide 30 in the upper part of the frame 10 of the machine

  ne, in the direction of arrow A On the carriage 28 are mounted two push levers 31 constituted in the form of bent levers and pivotally mounted in height on a hinge 32 In order to pivot the push levers 31, a cylinder is provided. pivoting 33 which is articulated on the carriage 28 With the aid of this jack 33, the push levers 31 can be pivoted from the lowered working position shown in solid lines in FIG. 2 to the raised position indicated by mixed lines The carriage 28 comprising the push levers 31 can be moved using a long-stroke cylinder 34 along the

  section 13 of the trail located on the entrance side, that is

  say in the direction of arrow A The cylinder 34 rests on a projecting part of the frame 10 of the machine and is

  connected by its piston rod to the carriage 28.

  A second pushing device 35 is associated with the outlet section 14 of the square track of the frame 10 of the machine. This pushing device is constituted by a pusher 36 which can be moved by means of a mechanism

  long stroke thrust piston (not shown) in direction

  tion of arrow B and in the opposite direction.

  On the side of the section 13 of the track which is opposite the guide rail 19 is provided an alignment device

  37 in the frame 10 of the machine This device is

  held by a pusher 38 which can be moved by means of a push piston mechanism 39 resting on the Dâti of the machine, in the direction of the guide rail 19 and in the opposite direction. At the exit end of section 14 of the square track are mounted two pairs of tools 40, 41 and 42, 43 formed by knife blocks The knife block 40 which is mounted at a certain lateral distance from the block opposite and fixed knife 41 is mounted on parallelogram connecting rods 44 analogously to knife block 23, and its distance from the fixed knife block 41 can be adjusted by an adjustment cylinder 45 The knife blocks 42 and 43 on the other pair of tools which work the upper and lower sides of the blocks forming the

  anodes can be fixedly mounted on the machine frame.

  The anode blocks 15 to be worked are brought into the cleaning machine, according to FIG. 1, via the conveyor with driven rollers. When the anode blocks 15 enter the section 13 of the square track, the levers pushers 31 are raised enough with the pivoting cylinder 33 so that they do not obstruct the entry

  of the anode unit in the cleaning machine As soon as the

  working anode 15 is in working position

  'of Figures 1 and 2, the push levers 31 are lowered

  located at the back of the anode block, as shown in the figure

  2 Due to the outlet stroke of the pusher 38 of the device

  alignment 37, the aniode block 15 'is pushed against the guide rail 19 and thereby aligned with respect to the

  tools or knife blocks 22 and 23 Then the knife

  riot 28 is moved in the direction of arrow A using the jack 34, the pushers 31 driving the zloc-anode 15 'in

  passing it through the frame between tools 22 and 23.

  The opposite side faces 15 a, 15 b of the anode block are then freed from encrustations or the like which they

  presented, and they are polished The 15 'anode block by

  comes at the rear of tools 22, 23 in position 15 "

  in which it is applied against the guide rail 18.

  Then, the carriage 28 can be brought back to its starting position, the push levers 31 being pivoted in height. The anode block 15 ′ which is in contact with the sliding passage 20 of the track section 14 is then

-2516099

  pushed by the pushing device 35 in the direction of arrow B, that is to say perpendicular to the direction of arrow A, and therefore in the space between the pairs of tools 40, 41 and 42, 43, so that the other four faces 15 c, 15 d or 15 e, 15 f are cleaned and polished. The anode block 15 "whose surfaces are cleaned and polished reaches the rear of the pairs of tools 40, 41 and 42, 43 on the output roller conveyor 21, and by which it is evacuated from the treatment device This east position

indicated in 15 "'in figure 1.

  The operation of the anode cleaning machine described above can be automatic, this result can be obtained using limit switches. To do this, we can first provide on or near the rail

  guide 19 a limit switch which is connected

  ché by the alignment device 37 during the tranvsersal movement of the anode block against the guide rail 19, which determines the lowering of the push levers 31 in the working position, then the movement of the carriage in the direction of arrow A to move the anode block from position 15 'to position 15 "In position 15", a

  other limit switch is actuated by the block

  anode, which determines the return movement of the carriage 28 to its starting position and simultaneously the triggering of the pushing device 35, which means that the anode block is

  transferred from position 15 "to the exit of the installation

tion, in position 15 "'.

  In practice, many carbon anode blocks are used inside the installation, which have different length and width dimensions but which have the same height. The adjustment of the treatment device on different anode blocks of this type can be achieved

  using adjustable tools 23 and 40

  The heads of these tools which are mounted on the connecting rods in parallelogram can be adjusted using the adjustment cylinders 26, 45 in two different working positions in which they are pressed against the frame of the machine frame, so that the fo rsotioa are absorbed by the frame of the machine without the oscillating elements of the tools being stressed by these forces. The adjustable tools 23 and 40 can be adjusted automatically by exploring the course of the alignment device. The machine frame is advantageously provided with a

  dust-tight coating and vacuum cleaner

  dust ration Particulate matter can be collected

  blocked in a funnel chute 46 and evacuated by

  example using a worm conveyor 47.

  REV Eii DICATIONS 1 Anode cleaning machine, comprising tools for treating the opposite surfaces of the anode blocks and a conveyor device for passing the anode blocks between the tools, characterized in that the anode blocks (15) are placed by the conveyor device on a square track (13, 14) and in that a part of the pairs of tools (22, 23; 40, 41; 42, 43) is mounted on one of the sections ( 13) of the track while the other part of the tool pairs is mounted on the other section (14) of

read the square track.

  2 Machine according to claim 1, characterized in that

  that the conveyor device is constituted by arrangements

  pushing devices (27, 35), a pushing device (27)

  being associated with the inlet section (13) and the other arrangement

  tif of thrust (35) at the exit section (14) of the runway

square.

  3 Machine according to claim 2, characterized in that the pushing device (27) associated with the entry section (13) of the track consists of at least one

  push lever (31) which is mounted on a carriage or

  neau (28), towards the entry section (13) of the track. 4 Machine according to claim 3, characterized in that a guide device (30) for the carriage or sled (28) is disposed in the upper part of the frame

(10) of the machine.

  Machine according to one of claims 1 to 4, charac-

  terized in that to treat the three pairs of surfaces of the anode blocks (15), a pair of tools (22, 23) is provided in the entry section (13) of the square track and a pair of tools ( 40, 41 and 42, 43) in the section of

  exit (14) from the square track.

  6 Machine according to one of claims 1 to 5, charac-

  terized in that it is expected that for at least two pairs of tools (22, 23; 40, 41), the distance of one of the tools

  (23, 40) is adjustable relative to the other tool (22, 41).

  7 machine according to claim 6, characterized in that the adjustable tools (23, 40) are mounted on connecting rods

in parallelogram (24, 44).

  8 Machine according to one of claims 1 to 7, charac-

  characterized in that guide rails (19, 18) which guide

  laterally the anode blocks (15) are mounted respectively-

  on one side of the two sections (13, 14) of the square track. 9 Machine according to claim 8, characterized in that in the entry section (13) of the square track is

  provided an alignment device (37) which presses the blocks

  anodes (15) against the guide rail (19) and which aligns them

relative to the tools (22, 23).

  Machine according to one of claims 2 to 9, charac-

  characterized in that the thrust device associated with the exit section (14) of the square track is constituted

by at least one pusher (36).

  11 Machine according to one of claims 1 to 10,

  characterized in that the pairs of tools (22, 23; 40, 41; 42, 43) are mounted in a common frame (10) of the machine which incorporates the track (13, 14) and comprises a passage of

  sliding or rolling (16, 17; 20, 21) for the trans-

  wearing of anode blocks (15) along its track sections (13, 14) which are arranged at right angles

  12 Machine according to one of claims 2 to 11,

  characterized in that it comprises limit switches which control the pushing devices (27,) -

  13 Machine according to one of claims 1 to 12,

  characterized in that the pairs of tools are formed

by knife blocks.