• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a processing plant (1) of workpieces (P), such as wood boards, plastics, metals and the like, comprising a receiving frame (13), a conveyor belt (15) for conveying such workpieces (P) to be machined, and at least one grinding unit (U ) of said work piece (P) to be machined, said plant (1) being characterized in that said at least one grinding unit (U) is disposed within said receiving frame (13), and said grinding unit (U) comprises at least one grinding group (15). 3) detecting means (4) of the position on said conveyor belt (15) and the shape of the profile of said workpiece (P) to be machined, actuator means (5) for handling said at least one grinding group (3) with respect to said workpiece to be machined (P), and a logic control unit connected to said detection means (4) and actuator means (5), wherein said a logical control unit detects the position and shape of the profile of the workpiece (P) to be machined by said detecting means (4), and arranges said at least one grinding group (3) through said actuator means (5) for grinding said workpiece (P) to be machined The present invention also relates to a grinding unit (U).
    公开号:AT514262A2
    申请号:T347/2014
    申请日:2014-05-13
    公开日:2014-11-15
    发明作者:
    申请人:Scm Group Spa；
    IPC主号:
    专利说明:

    1 • · · · · · · • · · · • · · · · • · · · • · · · · ·· ·· ··
    The present invention relates to a processing plant and a grinding unit.
    In more detail, the invention relates to a plant and a grinding unit, which is designed and built in particular for the processing of boards made of wood and also of other materials, such as metals, plastics and the like.
    In the following, the description will relate to the grinding of wood, and in particular window profiles, but it will be understood that it need not be construed to be limited to this specific example.
    As is well known, sanding is one of the typical phases of woodworking.
    For example, in the manufacture of window profiles, especially for the domestic market, the window profiles are subjected to a grinding step after they are processed before they are painted.
    There are currently a variety of woodworking equipment on the market equipped with a sanding station.
    A typical in the known manner execution of a plant equipped with a grinding station, comprising a receiving frame with an inlet opening of the workpiece to be machined, and an outlet opening of the machined workpiece.
    In said receiving frame a conveyor belt is provided, on which slides the workpiece to be machined, and different 2/31
    equipped with appropriate woodworking tools stations. At the inlet opening, one or more grinding groups are provided, which form the grinding station and are arranged movably on a transverse guide with respect to the conveying direction of the workpiece to be machined. Thus, such abrasive groups are able to adapt to the position of the workpiece to be machined.
    The grinding station is located upstream of the other processing stations of the plant. A plant of this type has several disadvantages. In particular, the grinding groups are located outside the receiving frame to allow the operator to position them correctly with respect to the workpiece to be machined, by suitable electrical controls provided by a suitable board, with which the machine is equipped. As can be easily understood, such a design is very cumbersome for the safety of the plant, by the fact that the processing groups are arranged outside the receiving frame, both for reasons of efficiency and processing speed. In fact, whenever the dimension of the workpiece is changed, the operation of the equipment must be interrupted to allow the operator to change the position of the grinding group.
    Plants of this kind are also very difficult to change. In other words, such investments are very "rigid". from the technical point of view.
    In view of the foregoing, therefore, it is an object of the present invention to propose a plant having a grinding unit which can operate automatically. 3/31 3 • · · ·
    Another object of the invention is that the above-mentioned grinding unit can be installed or turned off in a processing facility.
    Specific object of the present invention is therefore a system for processing workpieces, such as wood panels, plastics, metals and the like, comprising a receiving frame, a conveyor belt for conveying said machined workpieces, and at least one grinding unit of said workpiece to be machined, said Plant characterized in that said at least one grinding unit is disposed within said receiving frame, and said grinding unit comprises at least one grinding group, means for determining the position on said conveyor and the shape of the profile of said workpiece to be machined, actuating means for conveying said at least one grinding group with respect to said workpiece to be machined, and a logical control unit connected to said detection means and said actuator means, said logic control unit the position and the shape of the profile of the workpiece to be machined are detected by detecting means, and said at least one grinding group is controlled by said actuator means for grinding said workpiece to be machined.
    Also in accordance with the invention, said grinding unit may comprise a support frame having an upper transverse bar aligned substantially transverse to the direction of conveyance of the workpiece to be processed along the conveyor belt, and said grinding group horizontally, along said upper transverse bar, and vertically, through the said 4/31 «·
    ··· «··« • · · · · · · · · · · · · · · · · · · · · · · ··································································
    Actuator can be movable, and comprises a grinding device having a rotating vibratory grinding tool.
    Still according to the invention, said supporting frame may comprise two vertical uprights coupled at the top to said upper transverse bar and a guide disposed along said upper transverse bar, said grinding group having a body slidable along said guide coupled, and may comprise a support slidably coupled to said body to move vertically with respect thereto, and wherein said grinding means may comprise a receptacle in which a motor is received which is adapted to the said rotating grinding tool move, and a protection of said rotating grinding tool comprises, said
    Grinding device with respect to said support can swing so that it is able to rotate with respect to a substantially parallel to the conveying direction of said workpiece to be machined axis.
    Still according to the invention, such actuator means for each abrasive group may comprise a first ball screw disposed on said upper crossbar, and a corresponding first, preferably brushless, type and / or stepper motor for moving said abrasive group along said upper crossbar second ball screw vertically disposed on a respective pedestal and substantially perpendicular to said conveyor belt, and comprising a corresponding second, preferably brushless, type and / or stepper motor and a third motor or actuator capable of performing said 5 / 31
    To rotate grinding device with respect to a corresponding stand.
    Still according to the invention, such detection means may be of the optical type.
    According to the invention, preferably such
    Detecting means at least a first photocell integral with said conveyor belt or said support frame and adapted to detect the position on the conveyor belt of said workpiece to be machined, and comprising a second photocell which is vertically movable and capable of Profile of said workpiece to be machined to capture.
    Always according to the invention, each grinding unit may comprise two grinding groups arranged substantially on opposite sides of said conveyor belt.
    Still according to the invention, said plant may comprise a plurality, preferably two, grinding units arranged in cascade with each other with respect to the conveying direction of the workpiece to be processed on said conveyor belt, and containing corresponding counter-rotating grinding tools.
    Further according to the invention, said installation may comprise an inlet opening of the workpiece to be machined and a detection rod operatively connected to said logic control unit to detect the dimension in the plan of said workpiece to be machined. 6/31 ·························································································································································
    Another object of the present invention is a grinding unit for grinding workpieces, such as wood panels, plastics, metals or the like, which is arranged at least one grinding group, means for detecting the position on the plane on which the said workpiece to be machined, and the shape of the side Profiles of said workpiece to be machined,
    Actuator means for handling said at least one grinding group with respect to the workpiece to be machined, and a logical control unit connected to said detection means and said actuator means, said logic control unit determining the position and shape of the workpiece to be machined detected by said detecting means, and arranging said grinding group by said actuator means for grinding said workpiece to be machined.
    Always in accordance with the invention, such a unit may comprise a support frame comprising an upper crossbar directed substantially transverse to the direction of conveyance of the workpiece to be machined, two vertical uprights coupled at the top to said upper crossbar, and a guide which are longitudinal said upper crossbar is arranged, said abrasive group may comprise a body slidably coupled along said guide, a support slidably coupled to said body so as to be able to move vertically with respect thereto, and said grinding means may comprise a seat in which a motor, a rotating grinding tool, preferably provided with serrated brushes, is mounted, driven by said motor, said grinding means being able to oscillate with respect to said support, so as to move with respect to one of the 7/31 7 ·· ·· · · «
    Substantially parallel to a conveying direction of said workpiece to be machined direction can rotate.
    Still according to the invention, such detection means may be of the optical type and comprise a first fixed photocell suitable with respect to said support frame adapted to detect the position of said workpiece to be machined, and a second photocell movable along one of the Plane is vertical direction, on which said workpiece to be machined is arranged, and which is adapted to determine the profile of said workpiece to be machined.
    The present invention will now be described by way of illustration, not limitation, according to its preferred embodiments and in particular with reference to the figures of the accompanying drawings, in which: - Figure 1 is a perspective view of a processing plant according to the present invention; - Figure 2 is a perspective view of an open system of Figure 1; - Figure 3 is a side view of an open system of Figure 1; Figure 4 is a perspective view of a grinding unit according to the present invention; FIG. 5 is an exploded view of the grinding unit according to FIG. 4; 8/31 - Figure 6 is a front view of the grinding unit of Figure 4; FIG. 7 shows a view from below of the grinding unit according to FIG. 4; FIG. 8 shows a side view of the grinding unit according to FIG. 4; FIG. 9 shows a perspective view of a section of the grinding unit according to FIG. 4; FIG. 10 shows an operating configuration of the grinding unit according to FIG. 4; FIG. 11 shows a further operating configuration of the grinding unit according to FIG. 4; FIG. 12 shows an opened processing installation; and Figure 13 shows the machining of a workpiece by a grinding group according to the invention.
    In the various figures, similar parts are identified with the same reference numbers.
    With reference to Figs. 1-3, there is shown a processing plant of wood elements 1 according to the present invention.
    The processing plant 1 has an inlet opening 11 of the workpieces to be machined and an outlet opening 12 of the machined workpieces. ···· • · · · · ► · · ···· ► * · ♦ · · ♦ 4 * | ♦ ·
    Said plant 1 comprises a receiving frame 13, a stand 13 arranged inside said receiving frame, and a conveyor belt 15 arranged on said stand 14 and handled by a suitable motor.
    The plant 1 also comprises a detection rod 19 of the plan of the workpiece to be machined, which is provided with a plurality of small vertically oscillating levers to engage the workpiece, to plan its dimension and map the information to a sensor disposed on the same rod 19 transmit, which transmits a signal to the processing unit of the system.
    Said plant 1 internally comprises two grinding units U which are arranged in cascade with one another at the inlet opening 11, but it may also be arranged equally at the said outlet opening 12 or in an intermediate position of the plant 1.
    Each of the said grinding units U comprises mainly, also with reference to FIGS. 4-11, according to the present embodiment, a support frame 2, two grinding groups 3, detection means 4 of the position of the workpiece to be machined and actuator means 5 for the handling of said grinding groups 3.
    Said supporting frame 2 consists of two vertical uprights 21 'and 21 "arranged on opposite sides of the conveyor belt 15 and an upper transverse bar 23, along which a guide 23 is fastened, the operation of which will be better described below. Said upper transverse bar 23 is above the conveyor belt 15 10/31 10 '• • • • • • • • • • • • • • • • • • • • • • • • • • · · · · · ··· · And transversely to the conveying direction of the workpiece to be machined, along said conveyor belt arranged.
    Each of said abrasive groups 3 comprises a body 31 which is connected and slidably movable along said guide so as to be able to move along said upper crossbar 22 through said actuator means 5 comprising for each abrasive group 3 a first ball screw 51 which is disposed on said upper cross bar 22 and comprises a corresponding first brushless or stepping motor 52, which in the present embodiment is mounted on the stand 21 'or 21 " the corresponding grinding unit U are installed.
    Said grinding group 3 also comprises a support with two arms. The said support 32 is slidably coupled to the said body 31 so as to be able to move vertically (along the axis z) with respect thereto, also in this case by said actuator means 5 equal to each grinding group 3 of each grinding unit U consist of a second recirculating ball screw 53, which in this case is vertical and parallel to a stand 21 'or 21 " (i.e., perpendicular to said conveyor belt 15) and from a corresponding second brushless or stepper motor 54.
    The said abrasive group 3 also includes a
    Grinder 33, which has a seat 34 in which a motor is mounted, and a rotating grinding tool 35, which is equipped with serrated brushes and driven by said motor and protected by a protection. 11/31
    Μ ·· ····· ···············
    The said grinding device 33 is arranged so as to oscillate with respect to said arms of said support 32 so as to be movable with respect to the axis R arranged parallel to the axis x, by the action of a suitable third motor or actuator, not shown in the figures, rotates.
    The said grinding group 3, when at rest, is parallel to a respective stand 21 'or 21 " On the contrary, when said grinding group 3 is in an operating position, it is capable of being disposed along said guide 21, i. along said beam 22 to oscillate with respect to the axis R as described above, in particular with reference to Figure 6, and vertically and parallel to the axis z, according to the relative movement of said support 32 with respect to said Body 31, by said actuator means 5, to move.
    The detecting means 4, which are of the optical type in the considered embodiment, and for each grinding group 3, a pair of photocells, and in particular a first fixed photocell 41, i. integral with said conveyor belt 15, adapted to grip the position on the conveyor belt 15 of the workpiece to be processed, as better explained below, and comprising a second vertically movable photocell 42 (ie along the axis z) suitable is the course variable profile of the workpiece to be machined to capture.
    The plant 1 also comprises a central control unit, not shown in the figures, to which the said photocells 41 and 42 of each grinding device 33 are connected. 12/31 12 • · • # # Φ · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
    Each grinding unit 1 is completed by suitable cable trays 61 and pipes for the detection of the chips.
    The rest of the space within the support frame, generically indicated by V, accommodates other tools or processing groups which have not been shown in the preceding figures for the sake of simplicity. Figure 12 shows for the sake of completeness a complete view of an open processing plant 1 comprising various processing units, indicated as a whole by 17, arranged within said receiving frame 13, downwards from said two grinding units U.
    Said grinding plant also comprises a control panel 18 for the operator.
    Preferably, the rotation of the brushes or rotating tools 35 of the grinding groups 3 of the different grinding units U may preferably be counter-rotating in such a way that the grinding of the surface of the workpiece to be machined is optimized.
    It must also be emphasized that the grinding units U can be modular, i. the grinding plant 1 can be equipped with one or more grinding unit (s) U, which would in any case be arranged inside the receiving frame 13.
    The operation of the above processing equipment 1 is as follows. 13/31
    With reference also to Figure 13, when a workpiece to be machined, such as a complete profile of a window or window leaf, enters the entrance opening 11, it is ground by said grinding units and then conveyed through said conveyor 15 within the installation 1, and further processed by the various processing units 17.
    When said workpiece P enters said assembly, said detection rod 19 determines its position on the conveyor belt 15. Then, said workpiece P is located at each grinding unit U. The fixed photocell 41 detects by transmission / reception of an optical beam, preferably a laser, the removal of the base of the workpiece to be machined. The logical control unit is thus able to position the rotary tool 35 at a suitable distance from the two elongate stops of the sheet or generally the workpiece P to be machined, depending on the length and its orientation with respect to the conveyor belt 15. This operation is performed in a dynamic manner, i. constantly, performed so that one uses the position of the two lateral stops of the workpiece to be machined P constantly, and then monitors the transverse position of said rotating tools 35. On the contrary, the photocell 42 is constantly moved vertically (i.e., along the axis z) to detect the shape of the lateral profile (i.e., flank) of the workpiece P to be processed.
    The information obtained from said photocells 41 and 42, as stated, is sent to said central control unit, which controls each abrasive group 3, and in particular both the brushless and stepper motors 52 e 54, which rotate the ball screws 51 and 53, the abrading means in FIG suitably with respect to the workpiece P to be machined, along the axes y and z, both the motor that allows pivoting of said grinding device 33, as the rotating grinding tool 35, handle such that allow optimized grinding of the lateral surface of the workpiece P. ,
    In particular, the timed entry of the rotating tools or brush 35 on the sheet or workpiece P is accomplished such that the last run of travel (a run equal to the dimension of the stop) when the edge of the sheet P is the centerline of the brush 35 reached.
    The vertical position and inclination of the brush 35 are determined by the software interface installed in the control unit. The specifications of each grinding group corresponding to these two parameters for each brush (left or right) must be independent.
    The fast control for the maintenance operations carries on the two ends of the transverse stroke the two brushes 35 of the two abrasive groups 3 (direction of the axis y), with the axis e.g. in a position parallel to z.
    From the interface of Appendix 1 (i.e., the control panel 18), the values of the following parameters can be obtained: inclination a on the; Brush with respect to the workpiece to be machined; - working depth of the brush p; - working distance from level h.
    There are also two operating modes, a manual mode and an automatic mode.
    When operating in automatic mode, the rotating tool or brush 35 is automatically positioned in the transverse direction y by the signal sent from the photocells 41 and 42. The positioning is calculated on the basis of the above-mentioned parameters, which are entered by the operator in particular as p and h.
    When operating in manual mode, the inclination of the brush is fixed and defined by the parameter a, but the brush is automatically positioned in the transverse direction y by the signal sent by the photocells 41 and 42. The positioning is calculated on the basis of the above-mentioned parameters, which are entered by the operator in particular as a, p and h.
    The said photocells 41 and 42 merely monitor the compatibility of the inserted workpieces with the position of the brush 35.
    An advantage of the grinding system according to the present invention is that it has a compact construction, such that it is possible to apply it in an installation in any position, in distinction from the groups known in the art, outside the grinding machines or in specific machines for machining profiles of beams and windows are attached.
    A further advantage of the present invention is that the machinable materials are of various types, 16........... It can be anything but wood, raw or painted material, plastics, ferrous and non-ferrous metals.
    The present invention has been described by way of illustration but not limitation as to its preferred embodiments, but it is to be understood that changes or modifications may be made by those skilled in the art without departing from the scope of protection as defined by the appended claims. 17/31
    权利要求:
    Claims (13)
    [1]
    17 · «* · ·» ································································································.

    1. Processing plant (1) of workpieces (P), such as wood boards, plastics, metals and the like, comprising a receiving frame (13), a conveyor belt (15) for conveying the said workpieces to be machined (P). and at least one grinding unit (U) of said workpiece (P) to be machined, said tool being characterized in that said at least one grinding unit (U) is disposed within said receiving frame (13) and that said grinding unit (15) U) at least one grinding group (3), means for detecting the position on said conveyor belt (15) and the shape of the profile of said workpiece to be machined, actuator means (5) for handling the at least one grinding group (3) with respect to said workpiece to be machined (P), and a logical control unit connected to said detection means (4) and said actuator means (5) in that said logical control unit detects the position and shape of the profile of the workpiece (P) to be machined by said detecting means (4) and said at least one grinding group (3) by said actuator means (5) for grinding said one machining workpiece (P) are arranged.
    [2]
    2. Processing plant (1) according to claim 1, characterized in that said grinding unit (U) a support frame (22) having an upper substantially transversely to the conveying direction 18/31 • · • · · · · · · · · · · ·

    Of the workpiece (P) to be machined along the conveyor belt directed transverse bar (22) comprises, and that. English:. German: v3.espacenet.com/textdoc said grinding group (3) being movable horizontally along said upper crossbar (22) and vertically through said actuator means (5), and comprising a grinder (33) with a rotating grinding tool (35) capable of swing.
    [3]
    Machining equipment (1) according to claim 2, characterized in that said supporting frame (2) comprises two vertical uprights (21 ', 21 ") connected at the top to said upper transverse bar (22) and a guide (23) comprising, disposed along said upper crossbar (22), said abrasive group (3) comprising a body (31) slidably coupled along said guide, a support slidably connected to said body to be vertical with respect to it and in that said grinding device (33) comprises a seat (34) in which is embedded a motor capable of handling said rotating grinding tool (36) and a guard (36) of said rotating grinding tool (33). 35), said grinding means being also oscillating with respect to said support, with respect to a substantially parallel to the conveying direction of said workpiece to be machined (R) may rotate ckes axis.
    [4]
    4. processing plant (1) according to claim 3, characterized in that said actuator means (5) for each grinding group (3), a first on the said upper crossbar (22) arranged recirculating ball screw (51), and a corresponding 19/31 • First, preferably brushless and / or stepping motor (52) for handling said grinding group (3) along said upper crossbar (22), a second vertically on a respective stator (52) 21 ', 21 ") arranged substantially perpendicularly to said conveyor belt (15) and comprising a corresponding second, preferably brushless and / or stepping motor (54), and comprising a third motor or actuator comprising is able to rotate said grinding means (33) with respect to a respective stand (21 ', 21 ").
    [5]
    Machining equipment (1) according to any one of the preceding claims, characterized in that said detection means (4) are of the optical type.
    [6]
    Machining equipment (1) according to claim 5, characterized in that said detecting means (4) comprise at least one first photocell (41) arranged and capable of being integral with said conveyor belt (15) or said supporting frame (2) is to detect the position on the conveyor belt (15) of said work piece (P) to be machined, and a second vertically movable photocell (42) capable of acquiring the profile of said work piece (P) to be machined to capture.
    [7]
    7. Processing plant (1) according to one of the preceding claims, characterized in that each grinding unit (U) comprises two grinding groups, which are arranged substantially on opposite sides of said conveyor belt (15). 20/31 20 • • • • • • • • • • · · ·
    [8]
    8. processing plant (1) according to one of the preceding claims, characterized in that it comprises a plurality, preferably two grinding units (U) in cascade next to each other with respect to the conveying direction of the workpiece to be machined (P) on said conveyor belt (15 ), and respectively having rotary counter-grinding tools (35).
    [9]
    Machining equipment (1) according to any one of the preceding claims, characterized in that it comprises an input (11) of the workpiece (P) to be machined, and comprises a detection rod (19) operatively connected to said logic control unit the dimensions in the plan of said workpiece to be machined (P) ·
    [10]
    10. A grinding unit (ü) for grinding workpieces (P), such as wood boards, plastics, metals and the like, comprising at least one grinding group (3), position detecting means (4) on which the said workpiece to be machined (P ) and the shape of the lateral profile of said work piece (P) to be machined, actuator means (5) for handling said at least one grinding group (3) with respect to said work piece (P) to be machined, and a logical control unit comprising is connected to said detecting means (4) and said actuator means (5), said logical control unit detecting the position and shape of the profile of the workpiece (P) to be machined by said detecting means (4), and said grinding group (3 ) by said actuator means (5) for grinding said workpiece to be machined. 21/31 21 • ··· ····· • · · · · · ·
    [11]
    11. grinding unit (U) according to claim 10, characterized in that it comprises a support frame (2) with an upper crossbar (22) which is aligned substantially transversely to the conveying direction of the workpiece to be machined (P), two vertical top with the and a guide (23) disposed along said upper crossbar (22), said sliding group (3) slidably coupled along said guide (23) A body (31) comprising a support (32) slidably coupled to said body (31) for vertical movement therewith and said grinding means (33) including a seat (34) in which a motor is mounted is a rotating abrasive tool driven by said motor, preferably equipped with serrated abrasive brushes, said oscillating means (33) also oscillating with respect to said St cap (32) is such that it rotates axis (R) with respect to a workpiece substantially parallel to a conveying direction of said workpiece to be machined.
    [12]
    A grinding unit (10) according to any one of claims 10 or 11, characterized in that said detecting means (4) are of the optical type and a first photocell (41) which is fixed with respect to said supporting frame (2) and which is suitable Position of said workpiece (P) to be machined, and comprising a second photocell (42) movable along a plane perpendicular to the plane on which said workpiece (P) to be machined is located, 22/31 22 ♦ • · which is suitable for detecting the profile of said workpiece (P) to be machined. Vienna, am
    [13]
    May 13, 2014 SCM GROUP S.P.A. by: Haffner and Keschmann Patentanwälte GmbH 23/31
    类似技术:
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    同族专利:
    公开号 | 公开日
    ITRM20130282A1|2014-11-14|
    AT514262A3|2015-07-15|
    AT514262B1|2017-07-15|
    DE102014006955A1|2014-11-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2740696A1|1977-09-09|1979-03-15|Steinbearbeitungs Maschinenfab|Grinder or polisher for faces stones - has work face on table moved with circular movement superimposed on linear feed|
    US20010031614A1|1999-07-07|2001-10-18|Wolfgang Morkvenas|Random orbital finishing apparatus|
    US6602118B1|1999-11-15|2003-08-05|Chad Johnson|Orbital finishing sander|
    WO2001068320A1|2000-03-15|2001-09-20|Luigi Pedrini|Polishing machine for stone materials, having multiple grinding heads aligned on two oscillating and parallel beams with variable offset|CN112247714A|2020-09-29|2021-01-22|杭州姝珵家具有限公司|A remove bits device of polishing for furniture intelligent manufacturing|FR2480173A1|1980-04-15|1981-10-16|Virelec|Machine for polishing monumental stone - uses grinders on slide traversing beam which travels on rails and uses detectors to control movement|
    DK178219B1|2003-05-12|2015-08-31|Slipcon Holding Internat Aps|Rotary abrasive grinder moving in a reciprocating movement across the workpiece|CN110877245B|2019-12-03|2022-02-01|新沂市大自然木业有限公司|Fiberboard sanding machine capable of improving smoothness and working method thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT000282A|ITRM20130282A1|2013-05-13|2013-05-13|PROCESSING PLANT AND SANDING UNIT.|
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