EP2656969A1 - Assembly for machining at least one concrete block for bonding and grinding station including such an assembly - Google Patents

Assembly for machining at least one concrete block for bonding and grinding station including such an assembly Download PDF

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Publication number
EP2656969A1
EP2656969A1 EP13163581.5A EP13163581A EP2656969A1 EP 2656969 A1 EP2656969 A1 EP 2656969A1 EP 13163581 A EP13163581 A EP 13163581A EP 2656969 A1 EP2656969 A1 EP 2656969A1
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EP
European Patent Office
Prior art keywords
carriage
assembly
machining
concrete block
machined
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.)
Granted
Application number
EP13163581.5A
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German (de)
French (fr)
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EP2656969B1 (en
Inventor
Daniel Ancrenaz
Christophe Ancrenaz
Jean Marie Lemaire
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.)
Quadra 1 SAS
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Quadra 1 SAS
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Publication date
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Publication of EP2656969A1 publication Critical patent/EP2656969A1/en
Application granted granted Critical
Publication of EP2656969B1 publication Critical patent/EP2656969B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/006—Machines or devices using grinding or polishing belts; Accessories therefor for special purposes, e.g. for television tubes, car bumpers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/008—Machines comprising two or more tools or having several working posts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/12—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a contact wheel or roller pressing the belt against the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/02—Frames; Beds; Carriages

Definitions

  • the present invention relates to the construction sector. More specifically, the present invention relates to an assembly for machining concrete blocks to be bonded.
  • the present invention also relates to a grinding station comprising such an assembly.
  • the concrete blocks to be glued are intended to be laid by gluing using a roller and eliminates the need for mortar.
  • the mortar requires the supply of cement, sand, water, a concrete mixer and energy to the concrete mixer.
  • Concrete blocks to be bonded have the advantage of having a perfect geometry and require only a lower qualification of the operator, which can overcome a shortage of manpower in the building sector.
  • concrete blocks to be glued are faster to install, which saves time during installation.
  • the first calibration or rectification systems concerned the brick market, a competing market to that of concrete.
  • the manufacturers had the idea of machining this material to ensure a better quality assembly, faster by gluing.
  • the processes used for brick can not simply be transposed to concrete.
  • the concrete blocks to be bonded are produced in series by molding using vibrating presses, said concrete blocks to be glued being arranged on molding panels.
  • the concrete blocks to be bonded produced by these vibrating presses can not be considered as having a surface condition and geometric qualities satisfactory in terms of precision which could satisfy in themselves the geometric qualities necessary for the use of concrete blocks. to stick on.
  • This arrangement makes it possible to provide a simple solution to the machining of concrete blocks to be bonded which requires an investment in lessened material and which can be easily integrated into a new line or on an existing production line while modifying the material as little as possible. in place and for which rectification was not foreseen from the beginning of the project.
  • This arrangement also makes it possible to have a machining tool whose preventive or curative maintenance operation is simple to perform with a quick change of a low-cost abrasive belt which is thus akin to a consumable for the whole of the machine. .
  • This arrangement allows to position the machining tool at any point in a plane transverse to the plane in which the surface to be machined and defining the scope of the machining tool in the assembly for machining.
  • the first moving means and the second moving means are arranged to respectively move the first carriage and the second carriage in two substantially parallel directions
  • the third moving means are arranged to move respectively the first carriage or the second carriage, and the third carriage in two substantially transverse directions.
  • This arrangement helps to move the machining tool between its first position, its second and third position.
  • the first moving means of the first carriage relative to the chassis or the second moving means of the second carriage relative to the first carriage are arranged to respectively give the first carriage or the second carriage a movement. translation substantially transverse to a plane in which the surface to be machined of the at least one block of concrete to be bonded.
  • This arrangement makes it possible to move the machining tool between its second position and its third position and can also contribute to moving the machining tool between its first position and its second or third position.
  • the third moving means of the third carriage with respect to the second carriage are arranged to give the third carriage a translational movement substantially parallel to the plane in which the surface to be machined of the at least a block of concrete to stick.
  • the first carriage comprises at least one stop arranged to limit the movement of the first carriage relative to the frame so as to limit the movement of the machining tool relative to the surface to be machined. at least one block of concrete to be bonded.
  • the first carriage comprises crosspieces for limiting a forward movement of a concrete block to be bonded which can be driven by the machining device or a conveying device.
  • the assembly comprises a cowling partly covering the machining tool.
  • This arrangement makes it possible to confine in a restricted volume the dust resulting from the machining of the concrete blocks by the machining tool.
  • this arrangement helps to reduce the noise generated by the friction of the machining tool on the at least one block of concrete to be machined.
  • the assembly comprises suction means arranged to collect at least dust in an interior volume defined by the cowling.
  • This arrangement makes it possible to treat the dust resulting from the machining of the concrete blocks.
  • the machining device comprises means for holding the abrasive belt of the at least one machining tool on drive means comprising a first roller and a second roller.
  • This arrangement makes it possible to maintain the abrasive belt on the machining device by preventing the abrasive belt from sliding off the rollers when it comes into contact with the at least one concrete block.
  • the holding means comprise means for tensioning the abrasive belt of the at least one machining tool.
  • This arrangement makes it possible to rapidly replace the abrasive belt.
  • the tensioning means comprise a jack comprising a rectilinear stroke.
  • the tensioning means are disposed between the first roll and the second roll so as to move the first roll and the second roll relatively far apart or close together.
  • This arrangement makes it possible to automate the tension of the abrasive belt.
  • the means for holding the abrasive belt of the at least one machining tool on the drive means comprise oscillating movement cylinders arranged to vary in a plane substantially transverse to the direction. of the rectilinear stroke of the cylinder, the orientation of the axis of rotation of the first roller relative to the orientation of the axis of rotation of the second roller around a position in which the axis of rotation of the first roller and the axis of rotation of the second roller are substantially in the same plane.
  • This arrangement makes it possible to prevent the abrasive belt from escaping rollers while avoiding the use of mechanical means, such as a flange, which would prevent the band from sliding off the rollers but which would generate friction on the edge of the roll. abrasive belt on which the flange acts.
  • the present invention also relates to a grinding station comprising a conveying device arranged to convey at least one concrete block disposed on a molding panel to a set as previously described in a direction of advancement of the at least one block of concrete to be bonded substantially parallel to the surface of the concrete block to be machined.
  • This arrangement allows the deburring of concrete products on one side and therefore allows the use of a set as described above.
  • this arrangement allows the concrete blocks to be glued to be conveyed to the machining assembly without the need for additional handling steps of the concrete blocks to be bonded before or after their passage into the concrete. machining assembly.
  • said conveying device gives the at least one concrete block a forward movement comprising a rest phase.
  • This arrangement makes it possible to perform the machining of the concrete block when it is immobile on the conveyor device during its rest phase.
  • the movements of the machining tool are synchronized with the movements of the conveying device so that the machining tool mills the surface to be machined of a concrete block to be glued. when the conveying device is in a rest phase.
  • This arrangement makes it possible to perform the machining of the concrete blocks to be glued at a rate close to the production rate on the vibrating press on which the concrete blocks to be glued are molded.
  • a concrete block 5 comprises a first edge 7 and a second edge 8 opposite to the first edge 7 and between which extends a surface to be machined 6.
  • the concrete blocks 5 to be bonded, requiring the machining of one of their surface 6, are conveyed together with their molding panel 70 by means of a conveying device 60 to an assembly 1 for machining.
  • an assembly 1 for machining at least one concrete block 5 to be bonded comprises a frame 2.
  • This frame 2 comprises metal beams interconnected so as to form a rigid structure with a generally parallelepiped shape comprising feet with metal soles ensuring its maintenance on a support 3.
  • the support 3 is generally provided by the ground which must be strong enough to support the weight of the assembly.
  • the floor is usually flat, which gives a regular shape to the frame 2.
  • the support 3 could be provided by any surface.
  • the frame 2 could then adapt to the geometry of the support 3 so as to maintain a balance and stability of the frame on the support 3.
  • the assembly 1 comprises at least one machining device 40 connected to the frame 2 and comprising a machining tool 41 movable relative to the frame 2.
  • This machining tool 41 comprises an abrasive belt 41 'whose specificities are detailed later in the text.
  • the assembly 1 comprises a displacement device 4 of the machining tool 41.
  • the machining tool 41 can pass through several intermediate positions P1 ', P2', P3 'during a cycle comprising the three positions P1, P2, P3.
  • Such intermediate positions P1 ', P2', P3 ' are also illustrated by way of example in figure 9 .
  • the abrasive belt 41 'of the machining tool 41 moves transversely to the plane in which is inscribed the surface to be machined 6 of the concrete block 5 to be machined to reach an intermediate position P2' in which the abrasive belt 41 'of the machining tool 41 reaches the same plane.
  • the abrasive belt 41 'of the machining tool 41 then moves in this plane to successively reach the position P2 and then the position P3.
  • the abrasive belt 41 'of the machining tool 41 thus continues its displacement in the same plane to an intermediate position P3' in which the abrasive belt 41 'of the machining tool 41 is still in this plane but is remote from the machining surface 6 of the concrete block 5 to be machined.
  • the abrasive belt 41 'of the machining tool 41 then moves transversely to the plane in which is inscribed the surface to be machined 6 of the concrete block 5 to be machined to reach an intermediate position P1' in which the abrasive belt 41 'of the machining tool 41 moves away from this plane.
  • the abrasive belt 41 'of the machining tool 41 returns to its position P1 by moving in a plane substantially parallel to the plane in which is inscribed the surface to be machined 6 of the concrete block 5 to be machined.
  • the displacement device 4 of the machining tool 40 comprises inter alia a first mobile carriage 10 movably connected to the frame 2 and first moving means 11 of the first mobile carriage 10 relative to the chassis 2.
  • the first carriage 10 is arranged to move in a direction substantially transverse to the surface to be machined 6.
  • the first moving means 11 of the first mobile carriage 10 comprise a motor 12 integral with an upper part of the frame 2, and transmission means 13 arranged between the motor 12 and the first mobile carriage 10 so as to convert the rotary movement of the motor 12 in a translation movement of the first mobile carriage 10 relative to the chassis 2.
  • the maximum translational movement that can thus be performed the first mobile carriage 10 defines the stroke of the first mobile carriage 10.
  • the axis of rotation of the motor 12 is substantially transverse to the direction of travel of the first mobile carriage 10.
  • the first transmission means 13 comprise a gearbox backed to the motor 12 thus forming a geared motor and two axial transmission shafts connected on the one hand to the gearbox and on the other hand to two bearings disposed on two opposite sides on the upper part of the frame 2 .
  • Each transmission shaft comprises a toothed wheel on which is engaged a chain 14a, 14b also meshing with an idle gear 15a, 15b disposed on a lower portion of the frame 2 substantially perpendicular to the gear wheel.
  • the first mobile carriage 10 is connected on either side to each of the chains 14a, 14b at a relatively fixed point so that the rotation of the motor 12 in a first direction of rotation moves the first movable carriage 10 towards the part upper frame 2 and a rotation of motor 12 in a second direction of rotation moves the first movable carriage 10 towards the lower part of the frame 2.
  • first displacement means 11 comprise guide rails 16 disposed on the first movable carriage 10 as well as guide bearings 17 mounted idle on the frame 2 so as to give the first mobile carriage 10 a substantially rectilinear movement during the moving the chains 14a, 14b.
  • the first displacement means 11 comprise a stop 18 mounted on the carriage 10.
  • This abutment 18 limits the downward movement of the first mobile carriage 10 in a position in which the abrasive belt 41 'of the machining tool 41 is close to the plane in which the surface to be machined 6 of the concrete block 5 fits. .
  • the first movable carriage 10 comprises one or more sleepers 19 disposed on a lower portion of the first movable carriage 10 transversely to a direction of advancement of the concrete blocks 5 to be machined.
  • This position ensures that the abrasive belt 41 'of the machining tool 41, whose travel in the direction of travel of the concrete blocks 5 to be machined is limited, can reach the second position P2 and the third position P3. .
  • the sleepers 19 also make it possible to wedge at the same predetermined position the concrete blocks 5 so as to prevent their movement on the conveying device 60 during the action of the abrasive belt 41 'which is rotatable of the machining tool 41 of the machining device 40 on their surface to be machined 6.
  • the stroke of the first mobile carriage 10 is equal to the distance separating the first position P1 from the intermediate position P2 'of the machining tool 41 or equivalent to the distance separating the intermediate position P3' of the intermediate position P1 'of the machining tool 41.
  • the displacement device 4 comprises a second mobile carriage 20 connected to the first mobile carriage 10 as well as second displacement means 21 of the second carriage 20 with respect to the first carriage 10.
  • the second mobile carriage 20 is also arranged to move in a direction substantially transverse to the surface to be machined 6.
  • the second moving means 21 of the second mobile carriage 20 comprise a motor 22 integral with the first mobile carriage 10, and second transmission means 23 arranged between the motor 22 and the second mobile carriage 20.
  • the second transmission means 23 are arranged to convert the rotary movement of the motor 22 into a translation movement of the second mobile carriage 20 relative to the first mobile carriage 10.
  • the maximum translational movement that can thus be performed the second mobile carriage 20 defines the stroke of the second mobile carriage 20.
  • the axis of rotation of the motor 22 is disposed substantially transversely to the direction of travel of the second mobile carriage 20.
  • the transmission means 23 comprise a return shaft connected to the motor 22 and which distributes the movement of the motor 22 to a device of the ball screw type.
  • the ball screw device comprises a screw connected to the countershaft and a nut connected to the second mobile carriage 20.
  • the ball screw type device converts the rotational movement of the motor 22 into a translation movement of the second mobile carriage 20.
  • the axis of rotation of the ball screw is substantially longitudinal to the direction of travel of the second mobile carriage 20.
  • the second displacement means 21 comprise guide rails 26 arranged on the first mobile carriage 10 as well as pads 27 arranged on the second mobile carriage 20.
  • the guide rails 26 and the pads 27 are arranged longitudinally in the direction of travel of the second movable carriage 20 so as to give the second movable carriage 20 a substantially rectilinear movement during the movement of the screw of the ball screw type device.
  • first displacement means 11 and the second displacement means 21 are arranged to respectively move the first carriage 10 and the second carriage 20 in two longitudinal directions with one another, these two directions being also transverse to the plane in which the working surface 6 of the concrete block 5.
  • the function of the second mobile carriage 20 then appears to be a fine adjustment of the displacement imparted by the first mobile carriage 10, especially when the latter is in the low position against the stop 18.
  • the second mobile carriage 20 is fixedly fitted so that the abrasive belt 41 'of the machining tool 41 can reach precisely the plane in which the surface to be machined 6 of the concrete blocks 5 to machining when the first mobile carriage 10 is in the low position against the stop 18.
  • the displacement device 4 comprises a third mobile carriage 30 connected on the one hand to the second mobile carriage 20 and, on the other hand, integral with the machining device 40, as well as third moving means 31 of the third carriage 30 relative to the second movable carriage 20.
  • the third mobile carriage 30 is arranged to move in a substantially longitudinal direction to the surface to be machined 6.
  • this displacement is carried out in a direction substantially parallel to the advancement direction of the concrete blocks 5 to be machined by the conveying device 60.
  • the third moving means 31 of the third mobile carriage 30 comprise a motor 32 integral with the second mobile carriage 20, and third transmission means 33 arranged between the motor 32 and the third mobile carriage 30.
  • the motor 32 is disposed near a first lateral side of the second mobile carriage 20.
  • the third transmission means 33 are arranged to convert the rotary movement of the motor 32 into a translation movement of the third mobile carriage 30 relative to the second mobile carriage 20.
  • the maximum translational movement that can thus be performed by the third mobile carriage 30 defines the stroke of the third mobile carriage 30.
  • the axis of rotation of the motor 32 is substantially transverse to the direction of travel of the third mobile carriage 30.
  • the third transmission means 33 comprise a transmission shaft.
  • the transmission shaft comprises a pulley on which is engaged a belt 34 also engaged on an idler pulley disposed near the second lateral side of the second movable carriage 20 opposite the first lateral side near which the engine 32 is located.
  • the third movable carriage 30 is connected to the belt 34 at a relatively fixed point so that the rotation of the motor 32 in a first direction of rotation displaces the third movable carriage 30 towards the front of the frame 2 and a rotation of the motor 32 in a second direction of rotation moves the third movable carriage 30 towards the rear of the frame 2 relative to the direction of advancement of the concrete blocks 5.
  • the third displacement means 31 comprise guide rails 36 disposed on the second mobile carriage 20 as well as pads 37 arranged on the machining device 40 so as to give the machining device 40 a substantially rectilinear movement when the movement of the belt 34.
  • the stroke of the third mobile carriage 30 is equal to the distance separating the intermediate position P2 'from the intermediate position P3' of the machining tool 41.
  • the machining of a concrete block 5 to be bonded by a set 1 requires the displacement of the first carriage 10 and the third carriage 30 of the displacement device 4.
  • the displacement of the second carriage 20 is necessary only during the initial configuration of the assembly 1 to machine in order to calibrate the relative position of the abrasive belt 41 'with the surface to be machined 6 of the concrete block 5 to be machined when the first mobile carriage 10 is in the lower position on its stop 18.
  • the machining device 40 comprises drive means 43 comprising a first roller 44 and a second roller 45 whose axes of rotation 53, 56 are on the one hand substantially parallel to each other and part are substantially parallel to the surface to be machined 6 and oriented substantially transversely to the direction of advancement of the conveying device 60.
  • the first roller 44 and the second roller 45 are held on their axis of rotation 53, 56 respectively by a first crossbar 52 and a second crossbar 55, both shaped "U".
  • the first roller 44 is driven and is driven by a belt connected to a motor 42 integral with the third mobile carriage 30.
  • the first roller 44 is made of steel and comprises a rubber coating with ridges contributing to prevent sliding of the abrasive belt 41 'on the first roller 44.
  • the second roller 45 is smooth steel and is mounted so as to be driven by the action of the abrasive belt 41 '.
  • the machining device 40 comprises holding means 50 of the abrasive belt 41 'of the machining tool 41 on the drive means 43.
  • These holding means 50 comprise tensioning means 51 of the abrasive belt 41 'which themselves comprise a jack 51 disposed in a central position between the first spreader 52 of the first roller 44 and the second spreader 55 of the second roller 45.
  • This jack 51 has a rectilinear stroke which makes it possible to bring the first roller 44 and the second roller 45 closer or more relatively apart, which respectively has the effect of tensioning or relaxing the abrasive belt 41 'on the two rollers 44, 45, especially with a view to its replacement during a maintenance operation.
  • the position of the cylinder 51 is central between the first beam 52 of the first roller 44 and the second beam 55 of the second roller 45 so as to balance the force exerted by the cylinder 51 on the length of the rollers 44, 45.
  • the holding means 50 also comprise oscillating movement cylinders 57 arranged to vary in a plane substantially transverse to the direction of the straight stroke of the cylinder 51, the orientation of the axis of rotation 53 of the first roller 44. relative to the orientation of the axis of rotation 56 of the second roller 45 about a position in which the axis of rotation 53 of the first roller 44 and the axis of rotation 56 of the second roller 45 are substantially in one plan.
  • the movement of these oscillating movement cylinders 57 is coordinated with data from a non-contact sensor (not shown) arranged to detect the relative position of the abrasive belt 41 'on at least one of the two rollers. 44, 45.
  • the abrasive belt 41 includes technical specifications specific to the machining application that is made of it.
  • the abrasive belt 41 ' is made from a support made of cotton or polyester fabric on which are glued grains of silicon carbide, corundum or zirconium having an open or closed grain distribution with different ranges of abrasive belt 41 'to another.
  • the abrasive belt 41 ' also includes a width sufficient to enable it to simultaneously machine a series of concrete blocks 5 having a plurality of concrete blocks 5.
  • the machining of the concrete blocks to be machined 5 is carried out dry with an abrasive belt use speed 41 'of less than 20 m / s.
  • the machining device 40 may further comprise a second abrasive belt 41 'in order to increase the machining efficiency.
  • This second abrasive belt 41 ' may follow the same cycle as the first abrasive belt 41' presented above or a cycle in the opposite direction.
  • the direction of rotation of the abrasive belts 41 ' can also be identical or reversed depending on the desired configuration.
  • the machining device 40 of the assembly 1 also comprises a cowling 46 partially surrounding the abrasive belt 41 '.
  • This cowling 46 defines an interior volume inside which is projected the majority of the dust resulting from the machining of the concrete blocks 5 by the abrasive belt 41 '.
  • the assembly 1 comprises suction means (not shown) arranged to collect at least dust in the interior volume defined by the cowling 46.
  • the present invention also relates to a grinding station 100 comprising the conveying device 60 mentioned previously and which routes the concrete blocks 5 to be bonded and previously machined and their molding panel 70 to the assembly 1.
  • the conveying device 60 conveys the blocks of concrete 5 to be machined in a forward motion comprising a rest phase, for example a stepwise movement successively alternating a rest phase and a forward phase.
  • the concrete blocks 5 and their molding panel 70 are arranged on the conveying device 60 so that the surface to be machined 6 is opposed to the contact surface of the concrete blocks 5 with their molding panel 70 and in such a way that the first edge 7 and the second edge 8 of each concrete block 5 are arranged transversely to the direction of advance of the conveying device 60.
  • the rest phase of the forward movement of the conveying device 60 makes it possible to position a first series of concrete blocks 5 under the first abrasive belt 41 'and a second series of concrete blocks 5 under the second abrasive belt 41'.
  • the conveyor device 60 is then immobile and each of the abrasive belts 41 'is disposed above its respective series of concrete block 5 to be machined in the first position P1 illustrated in FIG. figure 9 .
  • the displacement device 4 then starts a cycle as described above.
  • the movements of the machining tool 41 are synchronized with the movements of the conveying device 60 so that the abrasive belt 41 'machines the surface to be machined. concrete blocks 5 to be bonded when the conveying device 60 is in a rest phase.
  • a production line will preferably incorporate a rectification station 100 above the output transfer of a descender so as to perform the rectification operation in masked time during stopping of the transfer.
  • the conveying device 60 conveys the concrete blocks 5 to be machined from the descender to the assembly 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The assembly (1) has a machining surface that includes an edge and another edge that is opposed to the former edge. A frame (2) is intended to be fixed with regard to a support (3). A machining device is connected to the frame, and includes a machining tool (41) comprising an abrasive band (41'). A displacement device (4) moves the band to three positions, where the band is in contact with the latter edge of the machining surface to machine a concrete block in one position. The displacement device is arranged with a trolley (10). An independent claim is also included for a correction post.

Description

La présente invention concerne le secteur de la construction. Plus précisément, la présente invention a pour objet un ensemble pour usiner des blocs de béton à coller.The present invention relates to the construction sector. More specifically, the present invention relates to an assembly for machining concrete blocks to be bonded.

Par ailleurs, la présente invention concerne également un poste de rectification comprenant un tel ensemble.Furthermore, the present invention also relates to a grinding station comprising such an assembly.

Les blocs de béton à coller sont destinés à être posés par collage à l'aide d'un rouleau et supprime le besoin de mortier.The concrete blocks to be glued are intended to be laid by gluing using a roller and eliminates the need for mortar.

Le mortier nécessite l'approvisionnement sur le chantier de ciment, de sable, d'eau, d'une bétonnière ainsi que d'énergie pour faire fonctionner la bétonnière.The mortar requires the supply of cement, sand, water, a concrete mixer and energy to the concrete mixer.

Les blocs de béton à coller ont pour avantage de présenter une géométrie parfaite et ne nécessitent qu'une qualification moindre de l'opérateur, ce qui peut palier à une pénurie de main d'oeuvre dans le secteur du bâtiment.Concrete blocks to be bonded have the advantage of having a perfect geometry and require only a lower qualification of the operator, which can overcome a shortage of manpower in the building sector.

De plus, les blocs de béton à coller sont plus rapides à poser, ce qui entraine un gain de temps lors de leur pose.In addition, concrete blocks to be glued are faster to install, which saves time during installation.

Enfin, les blocs de béton à coller améliorent l'isolation de la construction par la diminution des ponts thermiques.Finally, the concrete blocks to be bonded improve the insulation of the construction by reducing the thermal bridges.

Compte tenu de ces avantages, plusieurs industriels se sont intéressés à la fabrication de blocs de béton à coller.Given these advantages, several manufacturers have been interested in the manufacture of concrete blocks to glue.

Cependant, de tels blocs de béton à coller nécessitent des exigences particulières, notamment en termes de qualités géométriques.However, such concrete blocks to glue require special requirements, particularly in terms of geometric qualities.

Ces qualités géométriques sont la plus part du temps obtenues à l'aide d'une rectifieuse ou d'une ébavureuse qui exécute une étape d'usinage sur le bloc de béton à coller lors de son passage par un poste de rectification.These geometric qualities are most of the time obtained using a grinding machine or a deburrer that performs a machining step on the concrete block to be bonded during its passage through a grinding station.

Les premiers systèmes de calibrage ou rectification ont concerné le marché de la brique, marché concurrent à celui du béton. Les fabricants ont eu l'idée d'usiner ce matériau afin d'assurer un montage de meilleur qualité, plus rapide par collage. Cependant, compte tenu des spécificités du béton, les procédés employés pour la brique ne peuvent pas simplement être transposés au béton.The first calibration or rectification systems concerned the brick market, a competing market to that of concrete. The manufacturers had the idea of machining this material to ensure a better quality assembly, faster by gluing. However, given the specificities of concrete, the processes used for brick can not simply be transposed to concrete.

Ainsi, des recherches ont été entreprises par certains fabricants, notamment de presses vibrantes, pour développer des matériels adaptés aux produits en béton.Thus, research has been undertaken by some manufacturers, including vibrating presses, to develop materials adapted to concrete products.

Les blocs de béton à coller sont fabriqués en série par moulage à l'aide de presses vibrantes, lesdits blocs de béton à coller étant disposés sur des panneaux de moulage.The concrete blocks to be bonded are produced in series by molding using vibrating presses, said concrete blocks to be glued being arranged on molding panels.

Cependant, les blocs de béton à coller produits par ces presses vibrantes ne peuvent être considérés comme ayant un état de surface et des qualités géométriques satisfaisantes en terme de précision qui pourraient satisfaire à eux seuls les qualités géométriques nécessaires à l'utilisation de blocs de béton à coller.However, the concrete blocks to be bonded produced by these vibrating presses can not be considered as having a surface condition and geometric qualities satisfactory in terms of precision which could satisfy in themselves the geometric qualities necessary for the use of concrete blocks. to stick on.

Il est donc nécessaire de procéder à une rectification des blocs de béton suite à leur fabrication.It is therefore necessary to rectify the concrete blocks after their manufacture.

Il est connu à cet effet d'utiliser des rectifieuses capables de rectifier des bétons constitués d'agrégats très variés comprenant des outils d'usinage tournants circulaires de grand diamètre.It is known for this purpose to use grinding machines capable of grinding concretes made of very varied aggregates including rotary machining tools of large diameter.

Cependant, il est souhaitable de fournir une solution présentant un encombrement réduit et permettant un remplacement facilité de l'outil d'usinage.However, it is desirable to provide a solution having a small footprint and allowing easy replacement of the machining tool.

A cet effet, la présente invention a pour objet un ensemble pour usiner au moins un bloc de béton à coller comportant une surface à usiner, ladite surface à usiner comprenant une première arête et une deuxième arête opposée à la première arête, ledit ensemble pour usiner étant caractérisé en ce qu'il comprend :

  • un châssis destiné à être fixe par rapport à un support,
  • au moins un dispositif d'usinage relié au châssis et comprenant un outil d'usinage comportant une bande abrasive, le dispositif d'usinage étant mobile par rapport au châssis,
  • un dispositif de déplacement de la bande abrasive de l'outil d'usinage relativement à l'au moins un bloc de béton à usiner,
le dispositif de déplacement étant agencé pour déplacer la bande abrasive de l'outil d'usinage selon un cycle comprenant au moins :
  • une première position dans laquelle la bande abrasive de l'outil d'usinage est éloignée de ladite surface à usiner de l'au moins un bloc de béton,
  • une deuxième position dans laquelle la bande abrasive de l'outil d'usinage est en contact avec la première arête de ladite surface à usiner de l'au moins un bloc de béton,
  • une troisième position dans laquelle la bande abrasive de l'outil d'usinage est en contact avec la deuxième arête de ladite surface à usiner de l'au moins un bloc de béton.
For this purpose, the subject of the present invention is an assembly for machining at least one block of concrete to be bonded comprising a surface to be machined, said surface to be machined comprising a first edge and a second edge opposite to the first edge, said assembly for machining characterized in that it comprises:
  • a frame intended to be fixed relative to a support,
  • at least one machining device connected to the chassis and comprising a machining tool comprising an abrasive belt, the machining device being movable relative to the chassis,
  • a device for moving the abrasive belt of the machining tool relative to the at least one block of concrete to be machined,
the displacement device being arranged to move the abrasive belt of the machining tool in a cycle comprising at least:
  • a first position in which the abrasive belt of the machining tool is remote from said surface to be machined of the at least one concrete block,
  • a second position in which the abrasive belt of the machining tool is in contact with the first edge of said surface to be machined of the at least one concrete block,
  • a third position in which the abrasive belt of the machining tool is in contact with the second edge of said surface to be machined of the at least one concrete block.

Cette disposition permet de fournir une solution simple à l'usinage des blocs de béton à coller qui nécessite un investissement en matériel amoindri et qui peut s'intégrer facilement dans une nouvelle ligne ou sur une ligne de production existante en modifiant le moins possible le matériel en place et pour laquelle la rectification n'a pas été prévue dès l'origine du projet.This arrangement makes it possible to provide a simple solution to the machining of concrete blocks to be bonded which requires an investment in lessened material and which can be easily integrated into a new line or on an existing production line while modifying the material as little as possible. in place and for which rectification was not foreseen from the beginning of the project.

Cette disposition permet également de disposer d'un outil d'usinage dont l'opération de maintenance préventive ou curative est simple à réaliser avec un changement rapide d'une bande abrasive à faible coût qui s'apparente ainsi à un consommable pour l'ensemble.This arrangement also makes it possible to have a machining tool whose preventive or curative maintenance operation is simple to perform with a quick change of a low-cost abrasive belt which is thus akin to a consumable for the whole of the machine. .

Selon un aspect de l'invention, le dispositif de déplacement comprend :

  • un premier chariot relié de façon mobile au châssis,
  • des premiers moyens de déplacement du premier chariot par rapport au châssis,
  • un deuxième chariot relié de façon mobile au premier chariot,
  • des deuxièmes moyens de déplacement du deuxième chariot par rapport au premier chariot,
  • un troisième chariot relié d'une part de façon mobile au deuxième chariot et relié d'autre part de façon solidairement au dispositif d'usinage,
  • des troisièmes moyens de déplacement du troisième chariot par rapport au deuxième chariot.
According to one aspect of the invention, the displacement device comprises:
  • a first carriage movably connected to the frame,
  • first means for moving the first carriage relative to the chassis,
  • a second carriage movably connected to the first carriage,
  • second moving means of the second carriage with respect to the first carriage,
  • a third carriage connected on the one hand movably to the second carriage and further connected integrally with the machining device,
  • third means for moving the third carriage relative to the second carriage.

Cette disposition permet de positionner l'outil d'usinage en un point quelconque d'un plan transversal au plan dans lequel s'inscrit la surface à usiner et définissant la portée de l'outil d'usinage dans l'ensemble pour usiner.This arrangement allows to position the machining tool at any point in a plane transverse to the plane in which the surface to be machined and defining the scope of the machining tool in the assembly for machining.

Selon un aspect de l'invention, les premiers moyens de déplacement et les deuxièmes moyens de déplacement sont agencés pour déplacer respectivement le premier chariot et le deuxième chariot selon deux directions sensiblement parallèles, et les premiers moyens de déplacement ou les deuxièmes moyens de déplacement, et les troisièmes moyens de déplacement sont agencés pour déplacer respectivement le premier chariot ou le deuxième chariot, et le troisième chariot selon deux directions sensiblement transversales.According to one aspect of the invention, the first moving means and the second moving means are arranged to respectively move the first carriage and the second carriage in two substantially parallel directions, and the first moving means or the second moving means, and the third moving means are arranged to move respectively the first carriage or the second carriage, and the third carriage in two substantially transverse directions.

Cette disposition contribue à déplacer l'outil d'usinage entre sa première position, sa deuxième et sa troisième position.This arrangement helps to move the machining tool between its first position, its second and third position.

Selon un aspect de l'invention, les premiers moyens de déplacement du premier chariot par rapport au châssis ou les deuxièmes moyens de déplacement du deuxième chariot par rapport au premier chariot sont agencés pour conférer respectivement au premier chariot ou au deuxième chariot, un mouvement de translation sensiblement transversal à un plan dans lequel s'inscrit la surface à usiner de l'au moins un bloc de béton à coller.According to one aspect of the invention, the first moving means of the first carriage relative to the chassis or the second moving means of the second carriage relative to the first carriage are arranged to respectively give the first carriage or the second carriage a movement. translation substantially transverse to a plane in which the surface to be machined of the at least one block of concrete to be bonded.

Cette disposition permet de déplacer l'outil d'usinage entre sa deuxième position et sa troisième position et peut contribuer également à déplacer l'outil d'usinage entre sa première position et sa deuxième ou troisième position.This arrangement makes it possible to move the machining tool between its second position and its third position and can also contribute to moving the machining tool between its first position and its second or third position.

Selon un aspect de l'invention, les troisièmes moyens de déplacement du troisième chariot par rapport au deuxième chariot sont agencés pour conférer au troisième chariot un mouvement de translation sensiblement parallèle au plan dans lequel s'inscrit la surface à usiner de l'au moins un bloc de béton à coller.According to one aspect of the invention, the third moving means of the third carriage with respect to the second carriage are arranged to give the third carriage a translational movement substantially parallel to the plane in which the surface to be machined of the at least a block of concrete to stick.

Selon un aspect de l'invention, le premier chariot comprend au moins une butée agencée pour limiter le mouvement du premier chariot par rapport au châssis de manière à limiter le mouvement de l'outil d'usinage par rapport à la surface à usiner de l'au moins un bloc de béton à coller.According to one aspect of the invention, the first carriage comprises at least one stop arranged to limit the movement of the first carriage relative to the frame so as to limit the movement of the machining tool relative to the surface to be machined. at least one block of concrete to be bonded.

Selon un aspect de l'invention, le premier chariot comprend des traverses destinées à limiter un mouvement d'avancement d'un bloc de béton à coller pouvant être entrainé par le dispositif d'usinage ou un dispositif de convoyage.According to one aspect of the invention, the first carriage comprises crosspieces for limiting a forward movement of a concrete block to be bonded which can be driven by the machining device or a conveying device.

Selon un aspect de l'invention, l'ensemble comprend un capotage recouvrant en partie l'outil d'usinage.According to one aspect of the invention, the assembly comprises a cowling partly covering the machining tool.

Cette disposition permet de confiner dans un volume restreint les poussières résultant de l'usinage des blocs de béton par l'outil d'usinage.This arrangement makes it possible to confine in a restricted volume the dust resulting from the machining of the concrete blocks by the machining tool.

De plus, cette disposition contribue à réduire le bruit généré par le frottement de l'outil d'usinage sur l'au moins un bloc de béton à usiner.In addition, this arrangement helps to reduce the noise generated by the friction of the machining tool on the at least one block of concrete to be machined.

Selon un aspect de l'invention, l'ensemble comprend des moyens d'aspiration agencés pour recueillir au moins des poussières se trouvant dans un volume intérieur délimité par le capotage.According to one aspect of the invention, the assembly comprises suction means arranged to collect at least dust in an interior volume defined by the cowling.

Cette disposition permet de traiter les poussières résultant de l'usinage des blocs de béton.This arrangement makes it possible to treat the dust resulting from the machining of the concrete blocks.

Selon un aspect de l'invention, le dispositif d'usinage comprend des moyens de maintien de la bande abrasive de l'au moins un outil d'usinage sur des moyens d'entrainement comprenant un premier rouleau et un deuxième rouleau.According to one aspect of the invention, the machining device comprises means for holding the abrasive belt of the at least one machining tool on drive means comprising a first roller and a second roller.

Cette disposition permet d'assurer le maintien de la bande abrasive sur le dispositif d'usinage en empêchant la bande abrasive de glisser hors des rouleaux lors de son contact avec l'au moins un bloc de béton.This arrangement makes it possible to maintain the abrasive belt on the machining device by preventing the abrasive belt from sliding off the rollers when it comes into contact with the at least one concrete block.

Selon un aspect de l'invention, les moyens de maintien comprennent des moyens de tension de la bande abrasive de l'au moins un outil d'usinage.According to one aspect of the invention, the holding means comprise means for tensioning the abrasive belt of the at least one machining tool.

Cette disposition permet d'effectuer rapidement le remplacement de la bande abrasive.This arrangement makes it possible to rapidly replace the abrasive belt.

Selon un aspect de l'invention, les moyens de tension comprennent un vérin comprenant une course rectiligne.According to one aspect of the invention, the tensioning means comprise a jack comprising a rectilinear stroke.

Selon un aspect de l'invention, les moyens de tension sont disposés entre le premier rouleau et le deuxième rouleau de manière à écarter ou à rapprocher relativement le premier rouleau et le deuxième rouleau.According to one aspect of the invention, the tensioning means are disposed between the first roll and the second roll so as to move the first roll and the second roll relatively far apart or close together.

Cette disposition permet d'automatiser la tension de la bande abrasive.This arrangement makes it possible to automate the tension of the abrasive belt.

Selon un aspect de l'invention, les moyens de maintien de la bande abrasive de l'au moins un outil d'usinage sur les moyens d'entrainement comprennent des vérins à mouvement oscillant agencés pour faire varier dans un plan sensiblement transversal à la direction de la course rectiligne du vérin, l'orientation de l'axe de rotation du premier rouleau par rapport à l'orientation de l'axe de rotation du deuxième rouleau autour d'une position dans laquelle l'axe de rotation du premier rouleau et l'axe de rotation du deuxième rouleau sont sensiblement dans un même plan.According to one aspect of the invention, the means for holding the abrasive belt of the at least one machining tool on the drive means comprise oscillating movement cylinders arranged to vary in a plane substantially transverse to the direction. of the rectilinear stroke of the cylinder, the orientation of the axis of rotation of the first roller relative to the orientation of the axis of rotation of the second roller around a position in which the axis of rotation of the first roller and the axis of rotation of the second roller are substantially in the same plane.

Cette disposition permet d'éviter que la bande abrasive n'échappe des rouleaux tout en évitant d'employer des moyens mécaniques, tel un flasque, qui empêcherait à la bande de glisser en dehors des rouleaux mais qui générerait des frottements sur la bordure de la bande abrasive sur laquelle le flasque agit.This arrangement makes it possible to prevent the abrasive belt from escaping rollers while avoiding the use of mechanical means, such as a flange, which would prevent the band from sliding off the rollers but which would generate friction on the edge of the roll. abrasive belt on which the flange acts.

La présente invention a également pour objet un poste de rectification comprenant un dispositif de convoyage agencé pour convoyer au moins un bloc de béton disposé sur un panneau de moulage vers un ensemble tel que décrit précédemment selon une direction d'avancement de l'au moins un bloc de béton à coller sensiblement parallèle à la surface du bloc de béton à usiner.The present invention also relates to a grinding station comprising a conveying device arranged to convey at least one concrete block disposed on a molding panel to a set as previously described in a direction of advancement of the at least one block of concrete to be bonded substantially parallel to the surface of the concrete block to be machined.

Cette disposition permet l'ébavurage des produits béton sur une face et permet donc l'utilisation d'un ensemble tel que décrit précédemment.This arrangement allows the deburring of concrete products on one side and therefore allows the use of a set as described above.

De plus, cette disposition permet l'acheminement des blocs de béton à coller vers l'ensemble d'usinage sans qu'il ne soit nécessaire d'effectuer des étapes de manutention supplémentaires des blocs de béton à coller avant ou après leur passage dans l'ensemble d'usinage.Moreover, this arrangement allows the concrete blocks to be glued to be conveyed to the machining assembly without the need for additional handling steps of the concrete blocks to be bonded before or after their passage into the concrete. machining assembly.

Selon un aspect de l'invention, ledit dispositif de convoyage confère à l'au moins un bloc de béton un mouvement d'avance comprenant une phase de repos.According to one aspect of the invention, said conveying device gives the at least one concrete block a forward movement comprising a rest phase.

Cette disposition permet de réaliser l'usinage du bloc de béton au moment où celui-ci est immobile sur le dispositif de convoyage lors de sa phase de repos.This arrangement makes it possible to perform the machining of the concrete block when it is immobile on the conveyor device during its rest phase.

Selon un aspect de l'invention, les déplacements de l'outil d'usinage sont synchronisés sur les mouvements du dispositif de convoyage de manière à ce que l'outil d'usinage usine la surface à usiner d'un bloc de béton à coller lorsque le dispositif de convoyage est dans une phase de repos.According to one aspect of the invention, the movements of the machining tool are synchronized with the movements of the conveying device so that the machining tool mills the surface to be machined of a concrete block to be glued. when the conveying device is in a rest phase.

Cette disposition permet d'effectuer l'usinage des blocs de béton à coller à une cadence proche de la cadence de fabrication sur la presse vibrante sur laquelle sont moulés les blocs de béton à coller.This arrangement makes it possible to perform the machining of the concrete blocks to be glued at a rate close to the production rate on the vibrating press on which the concrete blocks to be glued are molded.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, un ensemble et un poste de rectification selon l'invention.

  • La figure 1 est une première vue globale de l'ensemble pour usiner par rapport à un dispositif de convoyage.
  • La figure 2 est une deuxième vue globale de l'ensemble pour usiner par rapport à un dispositif de convoyage.
  • La figure 3 est une troisième vue globale de l'ensemble pour usiner par rapport à un dispositif de convoyage.
  • La figure 4 est une première vue d'une partie de l'ensemble pour usiner des figures 1 à 3.
  • La figure 5 est une deuxième vue de la partie de l'ensemble pour usiner des figures 1 à 3.
  • La figure 6 est une deuxième vue de la partie de l'ensemble pour usiner des figures 1 à 3.
  • La figure 7 est une deuxième vue de la partie de l'ensemble pour usiner des figures 1 à 3.
  • La figure 8 est une deuxième vue de la partie de l'ensemble pour usiner des figures 1 à 3.
  • La figure 9 est vue illustrant diverses positions pouvant être occupées par l'outil d'usinage de l'ensemble selon l'invention par rapport à un bloc de béton à usiner.
  • La figure 10 illustre un bloc de béton à usiner.
In any case, the invention will be better understood from the description which follows, with reference to the attached schematic drawing showing, by way of non-limiting example, a set and a grinding station according to the invention.
  • The figure 1 is a first overall view of the assembly for machining with respect to a conveying device.
  • The figure 2 is a second overall view of the assembly for machining with respect to a conveying device.
  • The figure 3 is a third overall view of the assembly for machining with respect to a conveying device.
  • The figure 4 is a first view of a part of the whole for machining Figures 1 to 3 .
  • The figure 5 is a second view of the part of the set to machine Figures 1 to 3 .
  • The figure 6 is a second view of the part of the set to machine Figures 1 to 3 .
  • The figure 7 is a second view of the part of the set to machine Figures 1 to 3 .
  • The figure 8 is a second view of the part of the set to machine Figures 1 to 3 .
  • The figure 9 is shown illustrating various positions that can be occupied by the machining tool of the assembly according to the invention with respect to a concrete block to be machined.
  • The figure 10 illustrates a concrete block to be machined.

Comme illustré à la figure 10, un bloc de béton 5 comprend une une première arête 7 et une deuxième arête 8 opposée à la première arête 7 et entre lesquelles s'étend une surface à usiner 6.As illustrated in figure 10 , a concrete block 5 comprises a first edge 7 and a second edge 8 opposite to the first edge 7 and between which extends a surface to be machined 6.

Les blocs de béton 5 à coller, nécessitant l'usinage d'une de leur surface 6, sont acheminés conjointement à leur panneau de moulage 70 par l'intermédiaire d'un dispositif de convoyage 60 vers un ensemble 1 pour usiner.The concrete blocks 5 to be bonded, requiring the machining of one of their surface 6, are conveyed together with their molding panel 70 by means of a conveying device 60 to an assembly 1 for machining.

Comme illustré aux figures 1 à 3, un ensemble 1 pour usiner au moins un bloc de béton 5 à coller comprend un châssis 2.As illustrated in Figures 1 to 3 , an assembly 1 for machining at least one concrete block 5 to be bonded comprises a frame 2.

Ce châssis 2 comprend des poutres métalliques reliées entre elles de manière à former une structure rigide avec une forme générale en parallélélipède comportant des pieds avec des semelles métalliques assurant son maintien sur un support 3.This frame 2 comprises metal beams interconnected so as to form a rigid structure with a generally parallelepiped shape comprising feet with metal soles ensuring its maintenance on a support 3.

Le support 3 est généralement assuré par le sol qui doit être assez solide pour supporter le poids de l'ensemble.The support 3 is generally provided by the ground which must be strong enough to support the weight of the assembly.

Généralement, aucun génie civil spécifique n'est à prévoir.Generally, no specific civil engineering is to be expected.

Le sol est habituellement plat, ce qui donne une forme régulière au châssis 2.The floor is usually flat, which gives a regular shape to the frame 2.

Bien entendu, le support 3 pourrait être assuré par une surface quelconque. Le châssis 2 pourrait alors s'adapter à la géométrie du support 3 de manière à conserver un équilibre et une stabilité du châssis sur le support 3.Of course, the support 3 could be provided by any surface. The frame 2 could then adapt to the geometry of the support 3 so as to maintain a balance and stability of the frame on the support 3.

En outre, l'ensemble 1 comprend au moins un dispositif d'usinage 40 relié au châssis 2 et comprenant un outil d'usinage 41 mobile par rapport au châssis 2.In addition, the assembly 1 comprises at least one machining device 40 connected to the frame 2 and comprising a machining tool 41 movable relative to the frame 2.

Cet outil d'usinage 41 comprend une bande abrasive 41' dont les spécificités sont détaillées plus loin dans le texte.This machining tool 41 comprises an abrasive belt 41 'whose specificities are detailed later in the text.

Selon une caractéristique de l'invention, l'ensemble 1 comprend un dispositif de déplacement 4 de l'outil d'usinage 41.According to one characteristic of the invention, the assembly 1 comprises a displacement device 4 of the machining tool 41.

Comme illustré à la figure 9, ce dispositif de déplacement 4 est agencé pour déplacer l'outil d'usinage 41 selon un cycle comprenant au moins :

  • une première position P1 dans laquelle la bande abrasive 41' de l'outil d'usinage 41 est éloignée de ladite surface 6 à usiner du bloc de béton 5,
  • une deuxième position P2 dans laquelle la bande abrasive 41' de l'outil d'usinage 41 est en contact avec la première arête 7 de ladite surface 6 à usiner du bloc de béton 5, et
  • une troisième position P3 dans laquelle la bande abrasive 41' de l'outil d'usinage 41 est en contact avec de la deuxième arête 8 de ladite surface 6 à usiner du bloc de béton 5.
As illustrated in figure 9 this displacement device 4 is arranged to move the machining tool 41 in a cycle comprising at least:
  • a first position P1 in which the abrasive belt 41 'of the machining tool 41 is remote from said surface 6 to be machined of the concrete block 5,
  • a second position P2 in which the abrasive belt 41 'of the machining tool 41 is in contact with the first edge 7 of said surface 6 to be machined of the concrete block 5, and
  • a third position P3 in which the abrasive belt 41 'of the machining tool 41 is in contact with the second edge 8 of said surface 6 to be machined of the concrete block 5.

Bien entendu, l'outil d'usinage 41 peut passer par plusieurs positions intermédiaires P1', P2', P3' au cours d'un cycle comprenant les trois positions P1, P2, P3.Of course, the machining tool 41 can pass through several intermediate positions P1 ', P2', P3 'during a cycle comprising the three positions P1, P2, P3.

De telles positions intermédiaires P1', P2', P3' sont également illustrées à titre d'exemple à la figure 9.Such intermediate positions P1 ', P2', P3 'are also illustrated by way of example in figure 9 .

C'est ainsi qu'au cours d'un cycle, en partant d'une position P1 dans laquelle la bande abrasive 41' de l'outil d'usinage 41 est éloigné de la surface à usiner 6 du bloc de béton 5 à usiner, la bande abrasive 41' de l'outil d'usinage 41 se déplace transversalement au plan dans lequel est inscrit la surface à usiner 6 du bloc de béton 5 à usiner pour atteindre une position P2' intermédiaire dans laquelle la bande abrasive 41' de l'outil d'usinage 41 atteint ce même plan.Thus, during a cycle, starting from a position P1 in which the abrasive belt 41 'of the machining tool 41 is moved away from the surface to be machined 6 of the concrete block 5 to be machined , the abrasive belt 41 'of the machining tool 41 moves transversely to the plane in which is inscribed the surface to be machined 6 of the concrete block 5 to be machined to reach an intermediate position P2' in which the abrasive belt 41 'of the machining tool 41 reaches the same plane.

La bande abrasive 41' de l'outil d'usinage 41 se déplace ensuite dans ce plan pour atteindre successivement la position P2 puis la position P3.The abrasive belt 41 'of the machining tool 41 then moves in this plane to successively reach the position P2 and then the position P3.

La bande abrasive 41' de l'outil d'usinage 41 continue ainsi son déplacement dans ce même plan jusqu'à une position intermédiaire P3' dans laquelle la bande abrasive 41' de l'outil d'usinage 41 est toujours dans ce plan mais est éloignée de la surface à usiner 6 du bloc de béton 5 à usiner.The abrasive belt 41 'of the machining tool 41 thus continues its displacement in the same plane to an intermediate position P3' in which the abrasive belt 41 'of the machining tool 41 is still in this plane but is remote from the machining surface 6 of the concrete block 5 to be machined.

La bande abrasive 41' de l'outil d'usinage 41 se déplace ensuite transversalement au plan dans lequel est inscrit la surface à usiner 6 du bloc de béton 5 à usiner pour atteindre une position intermédiaire P1' dans laquelle la bande abrasive 41' de l'outil d'usinage 41 s'éloigne de ce plan.The abrasive belt 41 'of the machining tool 41 then moves transversely to the plane in which is inscribed the surface to be machined 6 of the concrete block 5 to be machined to reach an intermediate position P1' in which the abrasive belt 41 'of the machining tool 41 moves away from this plane.

Enfin, la bande abrasive 41' de l'outil d'usinage 41 revient à sa position P1 en se déplaçant selon un plan sensiblement parallèle au plan dans lequel est inscrit la surface à usiner 6 du bloc de béton 5 à usiner.Finally, the abrasive belt 41 'of the machining tool 41 returns to its position P1 by moving in a plane substantially parallel to the plane in which is inscribed the surface to be machined 6 of the concrete block 5 to be machined.

Plusieurs variantes à ce cycle peuvent être envisagées sans pour autant sortir de la portée de l'invention.Several variants of this cycle can be envisaged without departing from the scope of the invention.

C'est ainsi qu'il est possible de réaliser plusieurs passes sur la surface à usiner 6 entre la deuxième position P2 et la troisième position P3 ou bien de réaliser ce cycle en sens inverse.Thus it is possible to make several passes on the surface to be machined 6 between the second position P2 and the third position P3 or to perform this cycle in the opposite direction.

Pour pouvoir réaliser un tel cycle, le dispositif de déplacement 4 de l'outil d'usinage 40 comprend entre autres un premier chariot mobile 10 relié de façon mobile au châssis 2 et des premiers moyens de déplacement 11 du premier chariot mobile 10 par rapport au châssis 2.In order to be able to carry out such a cycle, the displacement device 4 of the machining tool 40 comprises inter alia a first mobile carriage 10 movably connected to the frame 2 and first moving means 11 of the first mobile carriage 10 relative to the chassis 2.

Le premier chariot 10 est agencé pour se déplacer selon une direction sensiblement transversale à la surface à usiner 6.The first carriage 10 is arranged to move in a direction substantially transverse to the surface to be machined 6.

A cet effet, les premiers moyens de déplacement 11 du premier chariot mobile 10 comprennent un moteur 12 solidaire d'une partie supérieure du châssis 2, et des moyens de transmission 13 disposés entre le moteur 12 et le premier chariot mobile 10 de manière à convertir le mouvement rotatif du moteur 12 en un mouvement de translation du premier chariot mobile 10 relativement au châssis 2.For this purpose, the first moving means 11 of the first mobile carriage 10 comprise a motor 12 integral with an upper part of the frame 2, and transmission means 13 arranged between the motor 12 and the first mobile carriage 10 so as to convert the rotary movement of the motor 12 in a translation movement of the first mobile carriage 10 relative to the chassis 2.

Le mouvement de translation maximal que peut ainsi effectuer le premier chariot mobile 10 définie la course du premier chariot mobile 10.The maximum translational movement that can thus be performed the first mobile carriage 10 defines the stroke of the first mobile carriage 10.

L'axe de rotation du moteur 12 est sensiblement transversal à la direction de la course du premier chariot mobile 10.The axis of rotation of the motor 12 is substantially transverse to the direction of travel of the first mobile carriage 10.

Les premiers moyens de transmission 13 comprennent un réducteur adossé au moteur 12 formant ainsi un motoréducteur et deux arbres de transmission axiaux reliés d'une part au réducteur et d'autre part à deux paliers disposés sur deux côtés opposés sur la partie supérieure du châssis 2.The first transmission means 13 comprise a gearbox backed to the motor 12 thus forming a geared motor and two axial transmission shafts connected on the one hand to the gearbox and on the other hand to two bearings disposed on two opposite sides on the upper part of the frame 2 .

Chaque arbre de transmission comprend une roue dentée sur laquelle est engrenée une chaine 14a, 14b également engrenée sur un pignon fou 15a, 15b disposé sur une partie inférieure du châssis 2 sensiblement à l'aplomb de la roue dentée.Each transmission shaft comprises a toothed wheel on which is engaged a chain 14a, 14b also meshing with an idle gear 15a, 15b disposed on a lower portion of the frame 2 substantially perpendicular to the gear wheel.

Le premier chariot mobile 10 est relié de part et d'autre à chacune des chaînes 14a, 14b en un point relativement fixe de manière à ce que la rotation du moteur 12 dans un premier sens de rotation déplace le premier chariot mobile 10 vers la partie supérieure du châssis 2 et une rotation du moteur 12 dans un deuxième sens de rotation déplace le premier chariot mobile 10 vers la partie inférieure du châssis 2.The first mobile carriage 10 is connected on either side to each of the chains 14a, 14b at a relatively fixed point so that the rotation of the motor 12 in a first direction of rotation moves the first movable carriage 10 towards the part upper frame 2 and a rotation of motor 12 in a second direction of rotation moves the first movable carriage 10 towards the lower part of the frame 2.

En outre, les premiers moyens de déplacement 11 comprennent des rails de guidage 16 disposés sur le premier chariot mobile 10 ainsi que des roulements de guidage 17 montés fous sur le châssis 2 de manière à conférer au premier chariot mobile 10 un mouvement sensiblement rectiligne lors du déplacement des chaînes 14a, 14b.In addition, the first displacement means 11 comprise guide rails 16 disposed on the first movable carriage 10 as well as guide bearings 17 mounted idle on the frame 2 so as to give the first mobile carriage 10 a substantially rectilinear movement during the moving the chains 14a, 14b.

De plus, comme illustré à la figure 4, les premiers moyens de déplacement 11 comprennent une butée 18 montée sur le chariot 10.In addition, as illustrated in figure 4 , the first displacement means 11 comprise a stop 18 mounted on the carriage 10.

Cette butée 18 limite le mouvement descendant du premier chariot mobile 10 dans une position dans laquelle la bande abrasive 41' de l'outil d'usinage 41 est à proximité du plan dans lequel s'inscrit la surface à usiner 6 du bloc de béton 5.This abutment 18 limits the downward movement of the first mobile carriage 10 in a position in which the abrasive belt 41 'of the machining tool 41 is close to the plane in which the surface to be machined 6 of the concrete block 5 fits. .

Enfin, comme illustré sur cette même figure 4, le premier chariot mobile 10 comprend une ou plusieurs traverses 19 disposés sur une partie inférieure du premier chariot mobile 10 transversalement à une direction d'avancement des blocs de béton 5 à usiner.Finally, as illustrated on this same figure 4 , the first movable carriage 10 comprises one or more sleepers 19 disposed on a lower portion of the first movable carriage 10 transversely to a direction of advancement of the concrete blocks 5 to be machined.

Lorsque le premier chariot mobile 10 se trouve dans une position basse, c'est-à-dire lorsque la bande abrasive 41' de l'outil d'usinage 41 atteint approximativement le plan dans lequel s'inscrit la surface 6 à usiner des blocs de béton 5 à usiner, ces traverses 19 empêchent les blocs de béton 5 à usiner d'avancer sur le dispositif de convoyage 60 au-delà d'une position déterminée.When the first mobile carriage 10 is in a low position, that is to say when the abrasive belt 41 'of the machining tool 41 reaches approximately the plane in which the surface 6 to be machined blocks of concrete 5 to be machined, these crosspieces 19 prevent the concrete blocks 5 to be machined from advancing on the conveying device 60 beyond a predetermined position.

Cette position assure à la bande abrasive 41' de l'outil d'usinage 41, dont la course selon la direction d'avancement des blocs de béton 5 à usiner est limitée, de pouvoir atteindre la deuxième position P2 et de la troisième position P3.This position ensures that the abrasive belt 41 'of the machining tool 41, whose travel in the direction of travel of the concrete blocks 5 to be machined is limited, can reach the second position P2 and the third position P3. .

Les traverses 19 permettent également de caler à cette même position prédéterminée les blocs de béton 5 de manière à empêcher leur déplacement sur le dispositif de convoyage 60 lors de l'action de la bande abrasive 41' rotative de l'outil d'usinage 41 du dispositif d'usinage 40 sur leur surface à usiner 6.The sleepers 19 also make it possible to wedge at the same predetermined position the concrete blocks 5 so as to prevent their movement on the conveying device 60 during the action of the abrasive belt 41 'which is rotatable of the machining tool 41 of the machining device 40 on their surface to be machined 6.

Dans l'exemple précité, la course du premier chariot mobile 10 est égale à la distance séparant la première position P1 de la position intermédiaire P2' de l'outil d'usinage 41 ou de manière équivalente à la distance séparant la position intermédiaire P3' de la position intermédiaire P1' de l'outil d'usinage 41.In the aforementioned example, the stroke of the first mobile carriage 10 is equal to the distance separating the first position P1 from the intermediate position P2 'of the machining tool 41 or equivalent to the distance separating the intermediate position P3' of the intermediate position P1 'of the machining tool 41.

Le dispositif de déplacement 4 comprend un deuxième chariot mobile 20 relié au premier chariot mobile 10 ainsi que des deuxièmes moyens de déplacement 21 du deuxième chariot 20 par rapport au premier chariot 10.The displacement device 4 comprises a second mobile carriage 20 connected to the first mobile carriage 10 as well as second displacement means 21 of the second carriage 20 with respect to the first carriage 10.

Le deuxième chariot mobile 20 est agencé lui aussi pour se déplacer selon une direction sensiblement transversale à la surface à usiner 6.The second mobile carriage 20 is also arranged to move in a direction substantially transverse to the surface to be machined 6.

A cet effet, comme illustré en particulier à la figure 6, les deuxièmes moyens de déplacement 21 du deuxième chariot mobile 20 comprennent un moteur 22 solidaire du premier chariot mobile 10, et des deuxièmes moyens de transmission 23 disposés entre le moteur 22 et le deuxième chariot mobile 20.For this purpose, as illustrated in particular in figure 6 , the second moving means 21 of the second mobile carriage 20 comprise a motor 22 integral with the first mobile carriage 10, and second transmission means 23 arranged between the motor 22 and the second mobile carriage 20.

Les deuxièmes moyens de transmission 23 sont agencés pour convertir le mouvement rotatif du moteur 22 en un mouvement de translation du deuxième chariot mobile 20 relativement au premier chariot mobile 10.The second transmission means 23 are arranged to convert the rotary movement of the motor 22 into a translation movement of the second mobile carriage 20 relative to the first mobile carriage 10.

Le mouvement de translation maximal que peut ainsi effectuer le deuxième chariot mobile 20 définie la course du deuxième chariot mobile 20.The maximum translational movement that can thus be performed the second mobile carriage 20 defines the stroke of the second mobile carriage 20.

L'axe de rotation du moteur 22 est disposé sensiblement transversalement à la direction de la course du deuxième chariot mobile 20.The axis of rotation of the motor 22 is disposed substantially transversely to the direction of travel of the second mobile carriage 20.

Les moyens de transmission 23 comprennent un arbre de renvoi relié au moteur 22 et qui distribue le mouvement du moteur 22 à un dispositif du type vis à bille.The transmission means 23 comprise a return shaft connected to the motor 22 and which distributes the movement of the motor 22 to a device of the ball screw type.

Le dispositif du type vis à bille comprend une vis relié à l'arbre de renvoi et un écrou relié au deuxième chariot mobile 20.The ball screw device comprises a screw connected to the countershaft and a nut connected to the second mobile carriage 20.

Le dispositif du type vis à bille assure la conversion du mouvement de rotation du moteur 22 en un mouvement de translation du deuxième chariot mobile 20.The ball screw type device converts the rotational movement of the motor 22 into a translation movement of the second mobile carriage 20.

L'axe de rotation de la vis à bille est sensiblement longitudinal à la direction de la course du deuxième chariot mobile 20.The axis of rotation of the ball screw is substantially longitudinal to the direction of travel of the second mobile carriage 20.

En outre, les deuxième moyens de déplacement 21 comprennent des rails de guidage 26 disposés sur le premier chariot mobile 10 ainsi que des patins 27 disposés sur le deuxième chariot mobile 20.In addition, the second displacement means 21 comprise guide rails 26 arranged on the first mobile carriage 10 as well as pads 27 arranged on the second mobile carriage 20.

Les rails de guidage 26 et les patins 27 sont disposés longitudianlement à la direction de la course du deuxième chariot mobile 20 de manière à conférer au deuxième chariot mobile 20 un mouvement sensiblement rectiligne lors du déplacement de la vis du dispositif du type vis à bille.The guide rails 26 and the pads 27 are arranged longitudinally in the direction of travel of the second movable carriage 20 so as to give the second movable carriage 20 a substantially rectilinear movement during the movement of the screw of the ball screw type device.

Ainsi, les premiers moyens de déplacement 11 et les deuxièmes moyens de déplacement 21 sont agencés pour déplacer respectivement le premier chariot 10 et le deuxième chariot 20 selon deux directions longitudinales entre elles, ces deux directions étant également transversales au plan dans lequel s'inscrit la surface à usiner 6 du bloc de béton 5.Thus, the first displacement means 11 and the second displacement means 21 are arranged to respectively move the first carriage 10 and the second carriage 20 in two longitudinal directions with one another, these two directions being also transverse to the plane in which the working surface 6 of the concrete block 5.

La fonction du deuxième chariot mobile 20 apparait alors comme étant de réaliser un réglage fin du déplacement conféré par le premier chariot mobile 10, notamment lorsque celui-ci est dans s position basse contre la butée 18.The function of the second mobile carriage 20 then appears to be a fine adjustment of the displacement imparted by the first mobile carriage 10, especially when the latter is in the low position against the stop 18.

La précision de ce réglage dépend directement du pas du dispositif du type vis à bille.The accuracy of this adjustment depends directly on the pitch of the device of the ball screw type.

En particulier, le deuxième chariot mobile 20 est ajusté fixement de manière à ce que la bande abrasive 41' de l'outil d'usinage 41 puisse atteindre précisément le plan dans lequel s'inscrit la surface à usiner 6 des blocs de béton 5 à usiner lorsque le premier chariot mobile 10 est en position basse contre la butée 18.In particular, the second mobile carriage 20 is fixedly fitted so that the abrasive belt 41 'of the machining tool 41 can reach precisely the plane in which the surface to be machined 6 of the concrete blocks 5 to machining when the first mobile carriage 10 is in the low position against the stop 18.

Enfin, le dispositif de déplacement 4 comprend un troisième chariot mobile 30 relié d'une part au deuxième chariot mobile 20 et relié d'autre part de façon solidaire au dispositif d'usinage 40, ainsi que des troisièmes moyens de déplacement 31 du troisième chariot 30 par rapport au deuxième chariot mobile 20.Finally, the displacement device 4 comprises a third mobile carriage 30 connected on the one hand to the second mobile carriage 20 and, on the other hand, integral with the machining device 40, as well as third moving means 31 of the third carriage 30 relative to the second movable carriage 20.

Contrairement au premier chariot mobile 10 et au deuxième chariot mobile 20, le troisième chariot mobile 30 est quant à lui agencé pour se déplacer selon une direction sensiblement longitudinale à la surface à usiner 6.Unlike the first mobile carriage 10 and the second mobile carriage 20, the third mobile carriage 30 is arranged to move in a substantially longitudinal direction to the surface to be machined 6.

Plus précisément, ce déplacement est réalisé selon une direction sensiblement parallèle à direction d'avancement des blocs de béton 5 à usiner par le dispositif de convoyage 60.More precisely, this displacement is carried out in a direction substantially parallel to the advancement direction of the concrete blocks 5 to be machined by the conveying device 60.

A cet effet, les troisièmes moyens de déplacement 31 du troisième chariot mobile 30 comprennent un moteur 32 solidaire du deuxième chariot mobile 20, et des troisièmes moyens de transmission 33 disposés entre le moteur 32 et le troisième chariot mobile 30.For this purpose, the third moving means 31 of the third mobile carriage 30 comprise a motor 32 integral with the second mobile carriage 20, and third transmission means 33 arranged between the motor 32 and the third mobile carriage 30.

Le moteur 32 est disposé à proximité d'un premier côté latéral du deuxième chariot mobile 20.The motor 32 is disposed near a first lateral side of the second mobile carriage 20.

Les troisièmes moyens de transmission 33 sont agencés pour convertir le mouvement rotatif du moteur 32 en un mouvement de translation du troisième chariot mobile 30 relativement au deuxième chariot mobile 20.The third transmission means 33 are arranged to convert the rotary movement of the motor 32 into a translation movement of the third mobile carriage 30 relative to the second mobile carriage 20.

Le mouvement de translation maximal que peut ainsi effectuer le troisième chariot mobile 30 définie la course du troisième chariot mobile 30.The maximum translational movement that can thus be performed by the third mobile carriage 30 defines the stroke of the third mobile carriage 30.

L'axe de rotation du moteur 32 est sensiblement transversal à la direction de la course du troisième chariot mobile 30.The axis of rotation of the motor 32 is substantially transverse to the direction of travel of the third mobile carriage 30.

Les troisièmes moyens de transmission 33 comprennent un arbre de transmission.The third transmission means 33 comprise a transmission shaft.

L'arbre de transmission comprend une poulie sur laquelle est engagée une courroie 34 également engagée sur une poulie folle 35 disposée à proximité du deuxième côté latéral du deuxième chariot mobile 20 opposé au premier côté latéral à proximité duquel se trouve le moteur 32.The transmission shaft comprises a pulley on which is engaged a belt 34 also engaged on an idler pulley disposed near the second lateral side of the second movable carriage 20 opposite the first lateral side near which the engine 32 is located.

Le troisième chariot mobile 30 est relié à la courroie 34 en un point relativement fixe de manière à ce que la rotation du moteur 32 dans un premier sens de rotation déplace le troisième chariot mobile 30 vers l'avant du châssis 2 et une rotation du moteur 32 dans un deuxième sens de rotation déplace le troisième chariot mobile 30 vers l'arrière du châssis 2 relativement à la direction d'avancement des blocs de béton 5.The third movable carriage 30 is connected to the belt 34 at a relatively fixed point so that the rotation of the motor 32 in a first direction of rotation displaces the third movable carriage 30 towards the front of the frame 2 and a rotation of the motor 32 in a second direction of rotation moves the third movable carriage 30 towards the rear of the frame 2 relative to the direction of advancement of the concrete blocks 5.

En outre, les troisièmes moyens de déplacement 31 comprennent des rails de guidage 36 disposés sur le deuxième chariot mobile 20 ainsi que des patins 37 disposés sur le dispositif d'usinage 40 de manière à conférer au dispositif d'usinage 40 un mouvement sensiblement rectiligne lors du déplacement de la courroie 34.In addition, the third displacement means 31 comprise guide rails 36 disposed on the second mobile carriage 20 as well as pads 37 arranged on the machining device 40 so as to give the machining device 40 a substantially rectilinear movement when the movement of the belt 34.

Dans l'exemple précité, la course du troisième chariot mobile 30 est égale à la distance séparant la position intermédiaire P2' de la position intermédiaire P3' de l'outil d'usinage 41.In the aforementioned example, the stroke of the third mobile carriage 30 is equal to the distance separating the intermediate position P2 'from the intermediate position P3' of the machining tool 41.

Ainsi, l'usinage d'un bloc de béton 5 à coller par un ensemble 1 selon l'invention nécessite le déplacement du premier chariot 10 et du troisième chariot 30 du dispositif de déplacement 4.Thus, the machining of a concrete block 5 to be bonded by a set 1 according to the invention requires the displacement of the first carriage 10 and the third carriage 30 of the displacement device 4.

Le déplacement du deuxième chariot 20 est quant à lui nécessaire uniquement lors de la configuration initiale de l'ensemble 1 pour usiner afin de calibrer la position relative de la bande abrasive 41' avec la surface à usiner 6 du bloc de béton 5 à usiner lorsque le premier chariot mobile 10 est en position basse sur sa butée 18.The displacement of the second carriage 20 is necessary only during the initial configuration of the assembly 1 to machine in order to calibrate the relative position of the abrasive belt 41 'with the surface to be machined 6 of the concrete block 5 to be machined when the first mobile carriage 10 is in the lower position on its stop 18.

Pour assurer la rotation de la bande abrasive 41' de l'outil d'usinage 41, le dispositif d'usinage 40 comprend des moyens d'entrainement 43 comportant un premier rouleau 44 et un deuxième rouleau 45 dont les axes de rotation 53, 56 sont d'une part sensiblement parallèles entre eux et d'autre part sont sensiblement parrallèles à la surface à usiner 6 et orientés sensiblement transversalement à la direction d'avancement du dispositif de convoyage 60.To ensure the rotation of the abrasive belt 41 'of the machining tool 41, the machining device 40 comprises drive means 43 comprising a first roller 44 and a second roller 45 whose axes of rotation 53, 56 are on the one hand substantially parallel to each other and part are substantially parallel to the surface to be machined 6 and oriented substantially transversely to the direction of advancement of the conveying device 60.

Le premier rouleau 44 et le deuxième rouleau 45 sont maintenus sur leur axe de rotation 53, 56 respectivement par un premier palonnier 52 et par un deuxième palonnier 55, tous deux en forme de « U ».The first roller 44 and the second roller 45 are held on their axis of rotation 53, 56 respectively by a first crossbar 52 and a second crossbar 55, both shaped "U".

Le premier rouleau 44 est moteur et est entrainé par une courroie relié à un moteur 42 solidaire du troisième chariot mobile 30.The first roller 44 is driven and is driven by a belt connected to a motor 42 integral with the third mobile carriage 30.

En outre, le premier rouleau 44 est en acier et comprend un revêtement en caoutchouc avec des stries contribuant à empêcher le glissement de la bande abrasive 41' sur le premier rouleau 44.In addition, the first roller 44 is made of steel and comprises a rubber coating with ridges contributing to prevent sliding of the abrasive belt 41 'on the first roller 44.

Le deuxième rouleau 45 est en acier lisse et est monté fou de manière à être entrainé par l'action de la bande abrasive 41'.The second roller 45 is smooth steel and is mounted so as to be driven by the action of the abrasive belt 41 '.

En outre, le dispositif d'usinage 40 comprend des moyens de maintien 50 de la bande abrasive 41' de l'outil d'usinage 41 sur les moyens d'entrainement 43.In addition, the machining device 40 comprises holding means 50 of the abrasive belt 41 'of the machining tool 41 on the drive means 43.

Ces moyens de maintien 50 comportent des moyens de tension 51 de la bande abrasive 41' qui comportent eux même un vérin 51 disposé dans une position centrale entre le premier palonnier 52 du premier rouleau 44 et le deuxième palonnier 55 du deuxième rouleau 45.These holding means 50 comprise tensioning means 51 of the abrasive belt 41 'which themselves comprise a jack 51 disposed in a central position between the first spreader 52 of the first roller 44 and the second spreader 55 of the second roller 45.

Ce vérin 51 possède une course rectiligne qui permet de rapprocher ou d'écarter relativement le premier rouleau 44 et le deuxième rouleau 45, ce qui a respectivement pour effet de tendre ou de détendre la bande abrasive 41' sur les deux rouleaux 44, 45, notamment en vue de son remplacement lors d'une opération de maintenance.This jack 51 has a rectilinear stroke which makes it possible to bring the first roller 44 and the second roller 45 closer or more relatively apart, which respectively has the effect of tensioning or relaxing the abrasive belt 41 'on the two rollers 44, 45, especially with a view to its replacement during a maintenance operation.

La position du vérin 51 est centrale entre le premier palonnier 52 du premier rouleau 44 et le deuxième palonnier 55 du deuxième rouleau 45 de manière à équilibrer la force exercée par le vérin 51 sur la longueur des rouleaux 44, 45.The position of the cylinder 51 is central between the first beam 52 of the first roller 44 and the second beam 55 of the second roller 45 so as to balance the force exerted by the cylinder 51 on the length of the rollers 44, 45.

En outre, les moyens de maintien 50 comprennent également des vérins à mouvement oscillant 57 agencés pour faire varier dans un plan sensiblement transversal à la direction de la course rectiligne du vérin 51, l'orientation de l'axe de rotation 53 du premier rouleau 44 par rapport à l'orientation de l'axe de rotation 56 du deuxième rouleau 45 autour d'une position dans laquelle l'axe de rotation 53 du premier rouleau 44 et l'axe de rotation 56 du deuxième rouleau 45 sont sensiblement dans un même plan.In addition, the holding means 50 also comprise oscillating movement cylinders 57 arranged to vary in a plane substantially transverse to the direction of the straight stroke of the cylinder 51, the orientation of the axis of rotation 53 of the first roller 44. relative to the orientation of the axis of rotation 56 of the second roller 45 about a position in which the axis of rotation 53 of the first roller 44 and the axis of rotation 56 of the second roller 45 are substantially in one plan.

Dans un mode de réalisation avantageux, le mouvement de ces vérins à mouvement oscillant 57 est coordonnée avec des données d'un capteur sans contact (non illustré) agencé pour détecter la position relative de la bande abrasive 41' sur au moins un des deux rouleaux 44, 45.In an advantageous embodiment, the movement of these oscillating movement cylinders 57 is coordinated with data from a non-contact sensor (not shown) arranged to detect the relative position of the abrasive belt 41 'on at least one of the two rollers. 44, 45.

La bande abrasive 41' comprend des spécifications techniques propres à l'application d'usinage qui en est faite.The abrasive belt 41 'includes technical specifications specific to the machining application that is made of it.

C'est ainsi que la bande abrasive 41' est réalisée à partir d'un support en toile de coton ou de polyester sur lequel sont encollés des grains de carbure de silicium, de corindon ou de zirconium ayant une distribution de grain ouverte ou fermée avec des gammes différentes d'une bande abrasive 41' à l'autre.Thus, the abrasive belt 41 'is made from a support made of cotton or polyester fabric on which are glued grains of silicon carbide, corundum or zirconium having an open or closed grain distribution with different ranges of abrasive belt 41 'to another.

La bande abrasive 41' comprend également une largeur suffisante pour lui permettre d'usiner simultanément une série de blocs de béton 5 comportant plusieurs blocs de béton 5.The abrasive belt 41 'also includes a width sufficient to enable it to simultaneously machine a series of concrete blocks 5 having a plurality of concrete blocks 5.

L'usinage des blocs de béton à usiner 5 est réalisé à sec avec une vitesse d'utilisation de bande abrasive 41' inférieure à 20 m/s.The machining of the concrete blocks to be machined 5 is carried out dry with an abrasive belt use speed 41 'of less than 20 m / s.

Comme illustré sur les figures 1 à 8, le dispositif d'usinage 40 peut en outre comprendre une deuxième bande abrasive 41' afin d'augmenter le rendement d'usinage.As illustrated on Figures 1 to 8 , the machining device 40 may further comprise a second abrasive belt 41 'in order to increase the machining efficiency.

Cette deuxième bande abrasive 41' peut suivre le même cycle que la première bande abrasive 41' présenté précédemment ou bien un cycle en sens inverse.This second abrasive belt 41 'may follow the same cycle as the first abrasive belt 41' presented above or a cycle in the opposite direction.

Le sens de rotation des bandes abrasives 41' peut également être identique ou inversé selon la configuration souhaitée.The direction of rotation of the abrasive belts 41 'can also be identical or reversed depending on the desired configuration.

Le dispositif d'usinage 40 de l'ensemble 1 comprend également un capotage 46 entourant en partie la bande abrasive 41'.The machining device 40 of the assembly 1 also comprises a cowling 46 partially surrounding the abrasive belt 41 '.

Sur les figures 1 à 6, le capotage 46 d'une ou des bandes abrasives 41' a été retiré pour plus de visibilité.On the Figures 1 to 6 , the cowling 46 of one or more abrasive belts 41 'has been removed for greater visibility.

Ce capotage 46 délimite un volume intérieur à l'intérieur duquel est projetée la majorité des poussières résultant de l'usinage des blocs de béton 5 par la bande abrasive 41'.This cowling 46 defines an interior volume inside which is projected the majority of the dust resulting from the machining of the concrete blocks 5 by the abrasive belt 41 '.

En outre, l'ensemble 1 comprend des moyens d'aspiration (non illustrés) agencés pour recueillir au moins des poussières se trouvant dans le volume intérieur délimité par le capotage 46.In addition, the assembly 1 comprises suction means (not shown) arranged to collect at least dust in the interior volume defined by the cowling 46.

La présente invention a également pour objet un poste de rectification 100 comprenant le dispositif de convoyage 60 mentionné précédemment et qui achemine les blocs de béton 5 à coller et au préalable à usiner ainsi que leur panneau de moulage 70 vers l'ensemble 1.The present invention also relates to a grinding station 100 comprising the conveying device 60 mentioned previously and which routes the concrete blocks 5 to be bonded and previously machined and their molding panel 70 to the assembly 1.

Le dispositif de convoyage 60 achemine les blocs de béton 5 à usiner selon un mouvement d'avance comprenant une phase de repos, par exemple un mouvement pas à pas alternant successivement une phase de repos et une phase d'avancement.The conveying device 60 conveys the blocks of concrete 5 to be machined in a forward motion comprising a rest phase, for example a stepwise movement successively alternating a rest phase and a forward phase.

Les blocs de béton 5 ainsi que leur panneau de moulage 70 sont disposés sur le dispositif de convoyage 60 de manière à ce que la surface à usiner 6 soit opposée à la surface de contact des blocs de béton 5 avec leur panneau de moulage 70 et de manière à ce que la première arête 7 et la deuxième arête 8 de chaque bloc de béton 5 soient disposées transversalement à la direction d'avancement du dispositif de convoyage 60.The concrete blocks 5 and their molding panel 70 are arranged on the conveying device 60 so that the surface to be machined 6 is opposed to the contact surface of the concrete blocks 5 with their molding panel 70 and in such a way that the first edge 7 and the second edge 8 of each concrete block 5 are arranged transversely to the direction of advance of the conveying device 60.

Comme mentionné précédemment, l'utilisation de deux bandes abrasives 41' permet d'usiner simultanément deux séries de blocs de béton 5.As mentioned above, the use of two abrasive belts 41 'makes it possible to machine simultaneously two sets of concrete blocks 5.

La phase de repos du mouvement d'avance du dispositif de convoyage 60 permet de positionner une première série de blocs de béton 5 sous la première bande abrasive 41' et une deuxième série de blocs de béton 5 sous la deuxième bande abrasive 41'.The rest phase of the forward movement of the conveying device 60 makes it possible to position a first series of concrete blocks 5 under the first abrasive belt 41 'and a second series of concrete blocks 5 under the second abrasive belt 41'.

Le dispositif de convoyage 60 est alors immobile et chacune des bandes abrasives 41' se trouve disposée au dessus respectivement de sa série de bloc de béton 5 à usiner dans la première position P1 illustrée à la figure 9.The conveyor device 60 is then immobile and each of the abrasive belts 41 'is disposed above its respective series of concrete block 5 to be machined in the first position P1 illustrated in FIG. figure 9 .

Le dispositif de déplacement 4 entame alors un cycle tel que décrit précédemment.The displacement device 4 then starts a cycle as described above.

Afin de garantir l'usinage en série des blocs de béton 5, les déplacements de l'outil d'usinage 41 sont synchronisés sur les mouvements du dispositif de convoyage 60 de manière à ce que la bande abrasive 41' usine la surface à usiner 6 des blocs de béton 5 à coller lorsque le dispositif de convoyage 60 est dans une phase de repos.In order to guarantee the series machining of the concrete blocks 5, the movements of the machining tool 41 are synchronized with the movements of the conveying device 60 so that the abrasive belt 41 'machines the surface to be machined. concrete blocks 5 to be bonded when the conveying device 60 is in a rest phase.

Une ligne de production intégrera de préférence un poste de rectification 100 au dessus du transfert de sortie d'un descenseur de manière à réaliser l'opération de rectification en temps masqué pendant l'arrêt du transfert.A production line will preferably incorporate a rectification station 100 above the output transfer of a descender so as to perform the rectification operation in masked time during stopping of the transfer.

Ainsi, le dispositif de convoyage 60 achemine les blocs de béton 5 à usiner depuis le descenseur vers l'ensemble 1.Thus, the conveying device 60 conveys the concrete blocks 5 to be machined from the descender to the assembly 1.

Bien que l'invention ait été décrite en liaison avec des exemples particuliers de réalisation, il est bien évident qu'elle n'y est nullement limitée et qu'elle comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons.Although the invention has been described in connection with particular examples of embodiment, it is obvious that it is in no way limited and it includes all the technical equivalents of the means described and their combinations.

Claims (17)

Ensemble (1) pour usiner au moins un bloc de béton (5) à coller comportant une surface (6) à usiner, ladite surface (6) à usiner comprenant une première arête (7) et une deuxième arête (8) opposée à la première arête (7), ledit ensemble (1) pour usiner étant caractérisé en ce qu'il comprend : - un châssis (2) destiné à être fixe par rapport à un support (3), - au moins un dispositif d'usinage (40) relié au châssis (2) et comprenant un outil d'usinage (41) comportant une bande abrasive (41'), le dispositif d'usinage (40) étant mobile par rapport au châssis (2), - un dispositif de déplacement (4) de la bande abrasive (41') de l'outil d'usinage (41) relativement à l'au moins un bloc de béton (5) à usiner, le dispositif de déplacement (4) étant agencé pour déplacer la bande abrasive (41') de l'outil d'usinage (41) selon un cycle comprenant au moins : - une première position (P1) dans laquelle la bande abrasive (41') de l'outil d'usinage (41) est éloignée de ladite surface à usiner (6) de l'au moins un bloc de béton (5), - une deuxième position (P2) dans laquelle la bande abrasive (41') de l'outil d'usinage (41) est en contact avec la première arête (7) de ladite surface à usiner (6) de l'au moins un bloc de béton (5), - une troisième position (P3) dans laquelle la bande abrasive (41') de l'outil d'usinage (41) est en contact avec la deuxième arête (8) de ladite surface (6) à usiner de l'au moins un bloc de béton (5). Assembly (1) for machining at least one concrete block (5) to be bonded having a surface (6) to be machined, said surface (6) to be machined comprising a first edge (7) and a second edge (8) opposite to the first edge (7), said assembly (1) for machining being characterized in that it comprises: a frame (2) intended to be fixed with respect to a support (3), - At least one machining device (40) connected to the frame (2) and comprising a machining tool (41) having an abrasive belt (41 '), the machining device (40) being movable relative to the frame (2) a device (4) for moving the abrasive belt (41 ') of the machining tool (41) relative to the at least one concrete block (5) to be machined, the displacement device (4) being arranged to move the abrasive belt (41 ') of the machining tool (41) in a cycle comprising at least: a first position (P1) in which the abrasive belt (41 ') of the machining tool (41) is remote from said surface to be machined (6) of the at least one concrete block (5), a second position (P2) in which the abrasive belt (41 ') of the machining tool (41) is in contact with the first edge (7) of said machining surface (6) of the at least one concrete block (5), a third position (P3) in which the abrasive belt (41 ') of the machining tool (41) is in contact with the second edge (8) of the said surface (6) to be machined by the at least one concrete block (5). Ensemble (1) selon la revendication 1, dans lequel le dispositif de déplacement (9) comprend : - un premier chariot (10) relié de façon mobile au châssis (2), - des premiers moyens de déplacement (11) du premier chariot (10) par rapport au châssis (2), - un deuxième chariot (20) relié de façon mobile au premier chariot (10), - des deuxièmes moyens de déplacement (21) du deuxième chariot (20) par rapport au premier chariot (10), - un troisième chariot (30) relié d'une part de façon mobile au deuxième chariot (20) et relié d'autre part de façon solidairement au dispositif d'usinage (40), - des troisièmes moyens de déplacement (31) du troisième chariot (30) par rapport au deuxième chariot (20). Assembly (1) according to claim 1, wherein the displacement device (9) comprises: a first carriage (10) movably connected to the frame (2), first moving means (11) of the first carriage (10) relative to the frame (2), a second carriage (20) movably connected to the first carriage (10), second displacement means (21) of the second carriage (20) with respect to the first carriage (10), a third carriage (30) movably connected to the second carriage (20) and connected to the machining device (40) on the other hand, - Third moving means (31) of the third carriage (30) relative to the second carriage (20). Ensemble (1) selon la revendication 2, dans lequel : - les premiers moyens de déplacement (11) et les deuxièmes moyens de déplacement (31) sont agencés pour déplacer respectivement le premier chariot (10) et le deuxième chariot (20) selon deux directions sensiblement parallèles, et - les premiers moyens de déplacement (11) ou les deuxièmes moyens de déplacement (21), et les troisièmes moyens de déplacement (31) sont agencés pour déplacer respectivement le premier chariot (10) ou le deuxième chariot (20), et le troisième chariot (30) selon deux directions sensiblement transversales. Assembly (1) according to claim 2, wherein: the first displacement means (11) and the second displacement means (31) are arranged to respectively move the first carriage (10) and the second carriage (20) in two substantially parallel directions, and the first moving means (11) or the second moving means (21), and the third moving means (31) are arranged to move respectively the first carriage (10) or the second carriage (20), and the third carriage (30) in two substantially transverse directions. Ensemble (1) selon l'une des revendications 2 ou 3, dans lequel les premiers moyens de déplacement (11) du premier chariot (10) par rapport au châssis (2) ou les deuxièmes moyens de déplacement (21) du deuxième chariot (20) par rapport au premier chariot (10) sont agencés pour conférer respectivement au premier chariot (10) ou au deuxième chariot (20), un mouvement de translation sensiblement transversal à un plan dans lequel s'inscrit la surface (6) à usiner de l'au moins un bloc de béton (5) à coller.Assembly (1) according to one of claims 2 or 3, wherein the first moving means (11) of the first carriage (10) relative to the frame (2) or the second moving means (21) of the second carriage ( 20) relative to the first carriage (10) are arranged to respectively give the first carriage (10) or the second carriage (20) a translational movement substantially transverse to a plane in which the surface (6) to be machined is inscribed. at least one concrete block (5) to be glued. Ensemble (1) selon la revendication 4, dans lequel les troisièmes moyens de déplacement (31) du troisième chariot (30) par rapport au deuxième chariot (20) sont agencés pour conférer au troisième chariot (20) un mouvement de translation sensiblement parallèle au plan dans lequel s'inscrit la surface (6) à usiner de l'au moins un bloc de béton (5) à coller.Assembly (1) according to claim 4, wherein the third moving means (31) of the third carriage (30) relative to the second carriage (20) are arranged to give the third carriage (20) a translational movement substantially parallel to the plane in which is inscribed the surface (6) to be machined of the at least one concrete block (5) to be bonded. Ensemble (1) selon la revendication 5, dans lequel le premier chariot (10) comprend au moins une butée (18) agencée pour limiter le mouvement du premier chariot (10) par rapport au châssis (2) de manière à limiter le mouvement de l'outil d'usinage (41) par rapport à la surface à usiner (6) de l'au moins un bloc de béton (5) à coller.Assembly (1) according to claim 5, wherein the first carriage (10) comprises at least one stop (18) arranged to limit the movement of the first carriage (10) relative to the frame (2) so as to limit the movement of the machining tool (41) with respect to the surface to be machined (6) of the at least one concrete block (5) to be bonded. Ensemble (1) selon l'une des revendications 2 à 6, dans lequel le premier chariot (10) comprend des traverses (19) destinées à limiter un mouvement d'avancement d'un bloc de béton (5) à coller pouvant être entrainé par le dispositif d'usinage (40) ou un dispositif de convoyage (60).Assembly (1) according to one of claims 2 to 6, wherein the first carriage (10) comprises sleepers (19) for limiting a forward movement of a concrete block (5) to be bonded to be drivable by the machining device (40) or a conveying device (60). Ensemble (1) selon l'une des revendications 1 à 7, comportant un capotage (46) recouvrant en partie l'outil d'usinage (41).Assembly (1) according to one of claims 1 to 7, comprising a cowling (46) partially covering the machining tool (41). Ensemble (1) selon la revendication 8, comprenant des moyens d'aspiration agencés pour recueillir au moins des poussières se trouvant dans un volume intérieur délimité par le capotage (46).Assembly (1) according to claim 8, comprising suction means arranged to collect at least dust in an interior volume defined by the cowling (46). Ensemble (1) selon l'une des revendications 1 à 9, dans lequel le dispositif d'usinage (40) comprend des moyens de maintien (50) de la bande abrasive (41') de l'au moins un outil d'usinage (41) sur des moyens d'entrainement (43) comprenant un premier rouleau (44) et un deuxième rouleau (45).Assembly (1) according to one of claims 1 to 9, wherein the machining device (40) comprises means (50) for holding the abrasive belt (41 ') of the at least one machining tool (41) on drive means (43) comprising a first roller (44) and a second roller (45). Ensemble (1) selon la revendication 10, dans lequel les moyens de maintien (50) comprennent des moyens de tension (51) de la bande abrasive (41') de l'au moins un outil d'usinage (41).Assembly (1) according to claim 10, wherein the holding means (50) comprise tensioning means (51) of the abrasive belt (41 ') of the at least one machining tool (41). Ensemble (1) selon la revendication 11, dans lequel les moyens de tension (51) comprennent un vérin (51) comprenant une course rectiligne.Assembly (1) according to claim 11, wherein the tensioning means (51) comprise a jack (51) comprising a rectilinear stroke. Ensemble (1) selon l'une des revendications 11 ou 12, dans lequel les moyens de tension (51) sont disposés entre le premier rouleau (44) et le deuxième rouleau (45) de manière à écarter ou à rapprocher relativement le premier rouleau (44) et le deuxième rouleau (45).Assembly (1) according to one of claims 11 or 12, wherein the tensioning means (51) are arranged between the first roller (44) and the second roller (45) so as to move relative or relatively relatively to the first roller (44) and the second roller (45). Ensemble (1) selon l'une des revendications 12 ou 13, dans lequel les moyens de maintien (50) de la bande abrasive (41') de l'au moins un outil d'usinage (41) sur les moyens d'entrainement (43) comprennent des vérins à mouvement oscillant (57) agencés pour faire varier dans un plan sensiblement transversal à la direction de la course rectiligne du vérin (51), l'orientation de l'axe de rotation (53) du premier rouleau (44) par rapport à l'orientation de l'axe de rotation (56) du deuxième rouleau (45) autour d'une position dans laquelle l'axe de rotation (53) du premier rouleau (44) et l'axe de rotation (56) du deuxième rouleau (45) sont sensiblement dans un même plan.Assembly (1) according to one of claims 12 or 13, wherein the means (50) for holding the abrasive belt (41 ') of the at least one machining tool (41) on the drive means (43) comprise oscillating movement cylinders (57) arranged to vary in a plane substantially transverse to the direction of the straight stroke of the jack (51), the orientation of the axis of rotation (53) of the first roller ( 44) relative to the orientation of the axis of rotation (56) of the second roller (45) about a position in which the axis of rotation (53) of the first roller (44) and the axis of rotation (56) of the second roller (45) are substantially in the same plane. Poste de rectification (100) comprenant un dispositif de convoyage (60) agencé pour convoyer au moins un bloc de béton (5) disposé sur un panneau de moulage (70) vers un ensemble (1) selon l'une des revendications 1 à 14 selon une direction d'avancement de l'au moins un bloc de béton (5) à coller sensiblement parallèle à la surface (6) du bloc de béton (5) à usiner.Grinding station (100) comprising a conveying device (60) arranged to convey at least one concrete block (5) disposed on a molding panel (70) to an assembly (1) according to one of Claims 1 to 14 in a direction of advancement of the at least one concrete block (5) to be bonded substantially parallel to the surface (6) of the concrete block (5) to be machined. Poste de rectification (100) selon la revendication 15, dans lequel ledit dispositif de convoyage (60) confère à l'au moins un bloc de béton (5) un mouvement d'avance comprenant une phase de repos.The grinding station (100) according to claim 15, wherein said conveying device (60) imparts to the at least one concrete block (5) a forward movement comprising a rest phase. Poste de rectification (100) selon la revendication 16, dans lequel les déplacements de l'outil d'usinage (41) sont synchronisés sur les mouvements du dispositif de convoyage (60) de manière à ce que l'outil d'usinage (41) usine la surface (6) à usiner d'un bloc de béton (5) à coller lorsque le dispositif de convoyage (60) est dans une phase de repos.The grinding station (100) according to claim 16, wherein the movements of the machining tool (41) are synchronized with the movements of the conveying device (60) so that the machining tool (41) ) mills the surface (6) to be machined of a concrete block (5) to be glued when the conveying device (60) is in a rest phase.
EP13163581.5A 2012-04-23 2013-04-12 Grinding station for machining at least one concrete block to be glued. Active EP2656969B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1253697A FR2989615B1 (en) 2012-04-23 2012-04-23 ASSEMBLY FOR MACHINING AT LEAST ONE BLOCK OF BONDED CONCRETE AND RECTIFICATION STATION COMPRISING SUCH AN ASSEMBLY

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EP2656969A1 true EP2656969A1 (en) 2013-10-30
EP2656969B1 EP2656969B1 (en) 2017-06-21

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN104002219A (en) * 2014-06-18 2014-08-27 青岛建诚伟业机械制造有限公司 Wide belt sanding machine
CN106166700A (en) * 2016-08-31 2016-11-30 励泰家具（清远）有限公司 The double end sand sponge equipment that a kind of sanding is respond well
BE1024541B1 (en) * 2016-11-28 2018-04-03 Dou-Beton METHOD AND DEVICE FOR MANUFACTURING PREFAB CONCRETE BLOCKS
CN112091781A (en) * 2020-09-01 2020-12-18 韩娜 Planar wire drawing equipment is used in production of mechanical numerical control machining center blade disc

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US3603041A (en) * 1969-04-23 1971-09-07 Minnesota Mining & Mfg Block-grinding apparatus
DE8900099U1 (en) * 1989-01-05 1989-03-30 Nelles, Willy, 5067 Kürten brick
EP1088636A2 (en) * 1999-09-28 2001-04-04 Vasco Benassati Apparatus for deburring ceramic products, particularly glazed tiles
EP1990133A2 (en) * 2007-05-11 2008-11-12 Jürgen Heesemann Grinder as tool for a processing device

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US3603041A (en) * 1969-04-23 1971-09-07 Minnesota Mining & Mfg Block-grinding apparatus
DE8900099U1 (en) * 1989-01-05 1989-03-30 Nelles, Willy, 5067 Kürten brick
EP1088636A2 (en) * 1999-09-28 2001-04-04 Vasco Benassati Apparatus for deburring ceramic products, particularly glazed tiles
EP1990133A2 (en) * 2007-05-11 2008-11-12 Jürgen Heesemann Grinder as tool for a processing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104002219A (en) * 2014-06-18 2014-08-27 青岛建诚伟业机械制造有限公司 Wide belt sanding machine
CN106166700A (en) * 2016-08-31 2016-11-30 励泰家具（清远）有限公司 The double end sand sponge equipment that a kind of sanding is respond well
BE1024541B1 (en) * 2016-11-28 2018-04-03 Dou-Beton METHOD AND DEVICE FOR MANUFACTURING PREFAB CONCRETE BLOCKS
CN112091781A (en) * 2020-09-01 2020-12-18 韩娜 Planar wire drawing equipment is used in production of mechanical numerical control machining center blade disc
CN112091781B (en) * 2020-09-01 2021-07-13 江西浩丞精密科技有限公司 Planar wire drawing equipment is used in production of mechanical numerical control machining center blade disc

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EP2656969B1 (en) 2017-06-21
FR2989615A1 (en) 2013-10-25
FR2989615B1 (en) 2014-04-11

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