• 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:
    Machine and method for manufacturing sand cores, the machine (100) comprising a molding box (1), a blow chamber (2), a gassing element (3) and a blowing assembly (4) that is adapted for inject air against the blow chamber (2) and to suck it, through a filter plate. The blowing chamber (2) is filled with sand and disposed in a discharge position between the blowing assembly (4) and the molding box (1) to discharge the sand into the molding box (1); and subsequently the gassing element (3) is arranged between the blower assembly (4) and the molding box (1). The machine (100) further comprises cleaning means (6) adapted to clean the filter plate once the blow chamber (2) has left the discharge position. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2542894A2
    申请号:ES201430184
    申请日:2014-02-11
    公开日:2015-08-12
    发明作者:Luis Alfonso FERNANDEZ ORIVE；Alesander OLEA ABARRATEGI；Ekaitz BARRASA ARTAMENDI
    申请人:Loramendi S Coop；
    IPC主号:
    专利说明:

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    P201430184
    02-11-2014
    -Once the discharge time has elapsed, the blow chamber 2 is moved to the loading position P2 where the commented process begins again.
    -Once the discharge time has elapsed, at the same time that the blowing chamber 2 is moved to the loading position P2, the gaseous element 3 is moved from a rest position P (figure 2) to a working position Pg in which it faces the one facing the molding box 1 (figure 1), arranged between said molding box 1 and the blow assembly 4.
    -With the gassing element 3 in the working position Pg, by means of the gassing element 3, the molding box 1 (the inner hollow 10) is hardened to harden the sand, during a predetermined gassing time.
    -After the gassing time has elapsed, the gassing element 3 moves to its resting position P, and the blowing chamber 2 can move back to its discharge position P2 (if the sand load has ended).
    All the operations mentioned are preferably performed automatically.
    In the method of the invention, in addition to the aforementioned operations, when the blowing chamber 2 is moved to leave the discharge position P2, cleaning means 6 are arranged facing the filtering plate 5 and a cleaning agent is injected against said filter plate 5 by means of cleaning means 6. In this way, after each sand discharge operation in the molding box 1, the filter plate 5 can be cleaned of possible sand that has adhered to it due mainly to the aspiration, decreasing the frequency with which said filter plate 5 has to be replaced by a new one (or at least a clean one), thus increasing the productivity of the machine 100. Preferably a cleaning operation is performed every time A sand discharge operation is performed, although it could have a different frequency if required. The cleaning agent is preferably injected under pressure, and it can be a gas or other material such as dry ice for example, although it preferably corresponds to compressed air.
    In a preferred embodiment of the method of the invention, the blow chamber 2 and the gas element 3 are linked together by a common structure 7, such that they move simultaneously and together. The cleaning means 6 are connected to said common structure 7 at a point between the blow chamber 2 and the gas element
    P201430184
    02-11-2014
    3, also moving in solidarity with the blowing chamber 2 and the gaseous element 3. In the preferred embodiment the displacement of the gaseous element 3 from the resting position P to the working position Pg (and therefore the displacement of the chamber Blowing 2 from the discharge position P2 to the loading position P1) can be done continuously or discontinuously. During this change of position of the blow chamber 2 and the gas element 3 (and of the cleaning means 6), the cleaning means 6 inject the cleaning agent acting against the filter plate 5 when said cleaning means 6 are faced with it (the moment in which the injection of the cleaning agent is activated is not relevant, simply make sure that when the cleaning means 6 passes under the filter plate 5 said injection is active in order to perform Cleaning). If, with the time that the cleaning means 6 acts on the filter plate 5, it is sufficient to clean it, the displacement is done continuously, otherwise it is done discontinuously, the displacement being interrupted during a predetermined cleaning time while said means cleaning 6 inject the cleaning agent against the filter plate 5, said cleaning time being equal to or greater than what was previously considered necessary.
    In a second embodiment of the method of the invention, the cleaning means 6 are fixed to the gas element 3 and are arranged on said gas element 3, such that they move in solidarity with said gas element 3. Thus, the operation Cleaning can be done while the sand in the molding box 1 is being gassed with the gas element 3, which is usually sufficient time for the required cleaning of the filter plate 5, since while it is being gassing the cleaning means 6 are facing the filter plate 5. The cleaning means 6 are positioned under the filter plate 5 at the same time that the gas element 3 is positioned in the working position Pg.
    In a third embodiment of the method the cleaning means 6 are freely connected to the blow assembly 4, and when the blowing chamber 2 is moved to leave the discharge position P2 the cleaning means 6 rotate to position itself in front of the filter plate 5 and thus perform the cleaning operation. This embodiment has the drawback mentioned above for the first embodiment in terms of having to delay or interrupt the movement of the gas element 3 towards its working position Pg. Once the cleaning operation has been carried out said cleaning means 6 returns
    P201430184
    02-11-2014
    to its original position to allow the gas element 3 to be positioned in the working position Pg.
    In any of the embodiments of the method the cleaning means 6 may comprise
    5 a structure 61 and a plurality of nozzles 60 fixed to said structure 61, such that the nozzles 60 remain static during the cleaning operation; or they can comprise at least one nozzle 60 connected with freedom of movement to the structure 61. In the latter case, during the cleaning operation of the method of the invention the repetitive displacement of said nozzle 60 is caused, in both directions,
    10 to cover the total width of the filter plate 5 at the same time that the cleaning agent is injected against said filter plate 5 by said nozzle 60.
    In any of its embodiments, during the method of the invention at least the sand that is detached or cleaned from the filter plate 5 can be sucked due to the performance of the cleaning means 6, by means of suction means. This operation can be carried out continuously, although preferably it is activated during the time in which the cleaning means 6 are acting on the filter plate 5. The suction means comprise means responsible for generating the aspiration (not shown in the figures) , a suction duct 90 for through which said sand reaches its destination
    20 (a tank for evacuation for example) and a suction valve 91 to open or close the passage through the suction duct 90, and when required, said suction valve 91 is actuated to allow or not said suction and over the means responsible for generating the aspiration.
    25
    权利要求:
    Claims (1)
    [1]
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    类似技术:
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    JP2017160787A5|2019-02-14|
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    KR101470284B1|2014-12-08|Apparatus for Removing by Air Injecting and Air Inhaling having Conveyor
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    ES2543448T3|2015-08-19|Sheet, procedure for mounting a sheet, injection molding mold and procedure for manufacturing a component of a sheet
    ES2839284T3|2021-07-05|Sand core making machine
    AR117276A1|2021-07-21|NOZZLE UNIT, LIQUID DISPENSER SUPPLIED WITH SUCH NOZZLE UNIT AND PROCEDURE FOR MANUFACTURING SUCH NOZZLE UNITS
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    US885069A|1908-04-21|Sanding-machine.
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    JP6317941B2|2018-04-25|Cutting equipment
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    JP2016001075A|2016-01-07|Space shield device and corner unit
    同族专利:
    公开号 | 公开日
    EP2907601B1|2019-04-10|
    ES2542894R1|2015-10-27|
    EP2907601A1|2015-08-19|
    ES2720476T3|2019-07-22|
    ES2542894B1|2016-08-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3059294A|1959-05-04|1962-10-23|Gen Motors Corp|Apparatus for making foundry cores and molds|
    CH593109A5|1975-06-03|1977-11-30|Hitachi Metals Ltd|Core-blowing machine using the hot box process - for high speed automatic prodn. of sand cores|
    JPS6048263B2|1982-03-24|1985-10-26|Toyota Motor Co Ltd|
    US4572273A|1983-10-26|1986-02-25|Naniwa Products Co. Ltd.|Blow plate and/or blow nozzle automatic cleaning device|
    DE3726197A1|1986-08-08|1988-02-11|Erana Agustin Arana|Cleaning device for the sand residues in pattern-core shooting machines|
    ES2009255A6|1988-03-25|1989-09-16|Erana Agustin Arana|System for changing and cleaning blowing plates in core blowing machines|
    JPH0780037B2|1990-02-23|1995-08-30|株式会社浪速製作所|Lower mold fixed horizontal split mold making machine|
    DE4322986C1|1993-07-09|1994-07-07|Hottinger Adolf Masch|Device and method for cleaning the bonnet in the manufacture of ready-to-cast masks or core packages|
    DE4327041C1|1993-08-12|1994-06-30|Hottinger Adolf Masch|Tool cleaning appts. for foundry machine esp. in core or mask making plant|
    ES2126449B1|1995-08-02|1999-11-16|Loramendi Sa|SYSTEM FOR THE EXCHANGE AND CLEANING OF BLOWING PLATES IN MALE BLOWING MACHINES.|
    CH704842B1|2011-04-16|2014-12-31|Lüber GmbH|A method for replacing a filter plate of a core shooting range.|ES2839284T3|2016-07-19|2021-07-05|Loramendi S Coop|Sand core making machine|
    EP3473351A1|2017-10-17|2019-04-24|MAGMA Giessereitechnologie GmbH|Core shooting apparatus and method for controlling core shooting apparatus|
    ES2880408T3|2018-06-13|2021-11-24|Loramendi S Coop|Method and installation for the manufacture of sand cores|
    法律状态:
    2016-08-03| FG2A| Definitive protection|Ref document number: 2542894 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160803 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201430184A|ES2542894B1|2014-02-11|2014-02-11|Machine and method for manufacturing sand males|ES201430184A| ES2542894B1|2014-02-11|2014-02-11|Machine and method for manufacturing sand males|
    EP15382044.4A| EP2907601B1|2014-02-11|2015-02-10|Machine and method for manufacturing sand cores|
    ES15382044T| ES2720476T3|2014-02-11|2015-02-10|Machine and method for manufacturing sand males|
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