• 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:
    In a method for actuating a mould closing and locking arrangement of an injection moulding machine or a metal pressure casting machine, having a movable mould mounting platen and a fixed mould mounting platen, the movable platen is moved into the closure position by means of pressure cylinders, locking being effected simultaneously with the traverse stroke into the closure position. During the traverse stroke into the closure position, when the end of each of four columns (29) attached to the movable platen abuts a cover (34) of a clamping bush (31), a hydraulic locking cylinder (14) is pressurised after the displacement of the opening piston 46 inside a cylinder 7 has displaced working fluid in the direction of the locking cylinder (14). On completion of the locking stroke the mould closure stroke is caused by a cam, attached to the piston rod of the locking cylinder 14, actuating a switch so that the pressure chamber 17 of a closure cylinder (47) is pressurised. For the removal of the moulding the opening cylinder 7 and the locking cylinder 14 are simultaneously actuated. <IMAGE>
    公开号:SU1287975A1
    申请号:SU807771466
    申请日:1980-11-10
    公开日:1987-02-07
    发明作者:Лотар Элснер；Клаус Фюллер；Фолкер Шолц；Клаус Ваббелс
    申请人:Феб Комбинат Умфермтехник "Херберг Варнке" (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to foundry, in particular to injection molding.
    The closest to the proposed technical essence and the achieved result is the machine's mechanism for locking an injection molding machine containing movable and fixed plates for fastening half-molds, moving cylinders for moving plate, half-mold closing cylinders mounted on plates mounted in a movable plate with cam lobes at the ends with which they enter the fixed plate and interact with the clamping bushes. Clamping bushings
    ten
    at least the rod of one of the cylinders is provided with a cam 51 interacting with a limit switch 50 located on the body of the opening cylinder 7, in the hydraulic control system the solenoid valve 1 is installed behind the hydraulic pump 3 and is connected to the main solenoid valve 9 and the auxiliary solenoid valve 10 the valve 11, and the pipeline 4 - with the drain 5, while the cavities of the cylinder 14 are locked with the solenoid valve 1 through the auxiliary solenoid valve 11 and the pipeline dy 12 and 13, cavity 17 cylinder 47 closures
    act as locking elements and is coupled to the cavity 6 of the cylinder 7, is dispersed by the cam system. Canine through the pipelines 8 and 22 and the main During the movement of the movable plate solenoid valve 9, with the cylinder towards the closure, annular cam 47 closures are connected on one side by the columns of the columns enter the internal pipe 19 through the electromagnet of the sleeve and move the sleeve to The valve 20 is connected with the 5th direction connected to the drain. During the movement, by adjusting the leveling tank 21 and on the other with the cam-guided raon guides through pipe 22, the main mechanism is the bushing moves in the axial solenoid valve 9, pipe 48 and the direction for the length of the circuit and the check valve 24 with the drain 5, while the radial direction is turned on the electromagnets of the valves 1 and 9, the electrical-defined angle required for the recording is connected to the switch 50.
    In addition, the locking mechanism is provided with a lever mechanism 41 connected by means of a hinge 42 to the locking cylinder 14 and interconnecting the sleeves 31.
    FIG. Figure 1 shows the mechanism for locking the machine under pressure, a general view; in fig. 2 - section A - A in FIG. one; in fig. 3 - section bb on FIG. 2; in fig. 4 - hydraulic sisterani external and internal cam projections. After this, the closing cylinders are connected without interrupting the closing movement. The locking mechanism is controlled by a hydraulic system that includes a hydraulic pump and solenoid valves (Para 30 of the GDR no. 133635, cl. B 22 D 17/26, 1978).
    The disadvantages of the known mechanism are the large wear of the cam guide mechanism, as well as the long stroke of the closing mechanism, which acts only during the locking of the mold, which requires a large flow of working fluid, and this leads to a strong deceleration of the movement of the movable plate in the last part of the piston stroke.
    Purpose of the invention
    actions and increase the reliability of the mechanism.
    35
    ma mechanism locking; in fig. 5 shows a lever mechanism for connecting locking elements.
    The machine locking mechanism of the injection molding contains a movable plate 26 mounted on the frame 25 for fastening the mold 40, moving with the help of the fast-28 quick-drive cylinder providing 28. In mobile
    the plate 26 are the columns 29, made in the form of pin studs and moving in the longitudinal direction with the help
    This goal is achieved by the fact that nuts 36 for setting the necessary mon- locking mechanism of the machine are cast at a 45 mold height. Columns 29 are pressurized, containing movable and annular segmented outer cams.
    movable plates of fastening the moving cylinders of the movable plate, semi-molds closing cylinders fixed to the plates, cam columns with cam lugs interacting with clamping sleeves mounted rotatably in the fixed semi-mold and fixed on the pistons of the closing cylinders, hydraulic control system including
    The lugs 30 are at the end where the fixed plate 27 is located. The columns 29 have a parallel key 44, which moves along the groove of the sleeve 43 and fixes the columns against rotation. The sleeve 43 is rigidly connected to the movable plate 26. In the fixed plate 27, clamping bushes 31 are installed, which cause the process
    lock the mechanism. They are equipped
    hydraulic pump and solenoid valves, 55 internal teeth 38. On clamping
    the sleeve 31 has a support ring 32, which is connected to the cover 34 by a screw connection, the cover 34 is provided with locking cylinders 14, the rods 35 of which are connected to the clamping sleeves 31, and the cylinder 7 is opened, and
    at least the rod of one of the cylinders is provided with a cam 51 interacting with a limit switch 50 located on the body of the opening cylinder 7, in the hydraulic control system the solenoid valve 1 is installed behind the hydraulic pump 3 and is connected to the main solenoid valve 9 and the auxiliary solenoid valve 10 the valve 11, and the pipeline 4 - with the drain 5, while the cavities of the cylinder 14 are locked with the solenoid valve 1 through the auxiliary solenoid valve 11 and the pipeline dy 12 and 13, cavity 17 cylinder 47 closures
    35
    ma mechanism locking; in fig. 5 shows a lever mechanism for connecting locking elements.
    nuts 36 to establish the required mounting height of the mold. Columns 29 have annular segmented outer cam projections 30 at the end where the stationary plate 27 is located. Columns 29 have a parallel key 44 moving along the groove of sleeve 43 and securing the columns against rotation. The sleeve 43 is rigidly connected to the movable plate 26. In the fixed plate 27, clamping sleeves 31 are installed, which cause the process
    lock the mechanism. They are equipped
    It goes to the clamping in the ulka 31. The segment annular cover 34 forms, together with the supporting ring 32, the clamping sleeve 31 and the piston 18, a single functional unit. A cover 35 of the hydraulic cylinder 14 is locked on the cover 34 in the area of the missing segment. Cylinder 14 is locked and column 29 forms a right angle. The rod transmits the force to the clamping sleeve 31, and the force acts in an eccentric direction. A cam 51 is fixed on the rod 35, which actuates the limit switch 50 depending on the stroke of the piston, and the switch 50 is mounted on the body of the opening cylinder 7. Directly behind the closing piston 18 is a piston 46, which is subjected to one-sided pressure in the pressure chamber 6 of the opening cylinder 7. The piston 18 and piston 46 are interconnected by means of a cover 34, a clamping sleeve 31 and a support ring 32. The pressure pipe 8 of the pressure cavity 6 of the opening cylinder 7 is connected either directly or to the cylinder 14 of locking or the hydraulic pump 3 by means of a set of solenoid valves 11, 9, 1 and through pipelines 3, 8, 10, 12 and 13. The pressure chamber 17 of the cylinder 47 is optionally connected either via pipelines 22, 10 and 2 and a set of solenoid valves 9 and 1 directly with hydraulic pump 3 or through pipelines 19 or electromagnetic cl pan 20 to the equalizing reservoir 21.
    The locking mechanism works as follows.
    When the mold is opened, the casting is removed. The movable plate 26 and the fixed plate 27 thus have the greatest distance between them. In this position, the rest of the closing unit of the hydraulic pump 3 sucks the working fluid from the drain tank 5 and transports it via pipelines 2 and 4 and through valve 1 (position 1) back to the drain into vessel 5 without pressure. The pressure chamber 17 of the closing cylinder 47 is connected by means of the pipeline 19 and the intermediate electromagnetic valve 20 (position 1) to the leveling tank 21 and for this reason is not subjected to pressure. The presence of a check valve 24 prevents the working fluid from flowing out of the cavity 17 through pipelines 22 and 48 through valve 9 (position 1) into tank 5. The discharge chamber 6 of the opening cylinder 7 and the pressure chamber 40 of the cylinder 14 are locked to the tank 5 by means of pipelines 8 , 10, 12, and 16, valve set 1 (position 1), 9 (position 1), and 11 (position 1), and with the aid of a common pressure limiting valve 15. Thus, cavities 6 and 40 are pre-exposed.
    5 0 5 0
    5 5 j
    0
    The target pressure is created by a certain opening force corresponding to the preliminary pressure of the pressure limiting valve 15.
    The subsequent casting cycle is accompanied by the action of pressure in the accelerated cylinders 28, the movable plate 26 together with the columns 29 fixed to it moves towards the fixed plate 27. In this case the annular sections of the columns 29 enter the fixed plate 27 and the annular segment outer cams 30 enter into the clamping sleeve 31. The cams 30 move axially along the grooves 33 of the clamping sleeve 31. Thereafter, the side surfaces of the columns 29 strike the inner plane of the lid 34, which is adjacent to the clamping sleeve 31, The inertial energy of the movable plate 26 causes a certain force that is transmitted from the sides of the columns 29 to the cover 34, the piston 46 of the opening cylinder 7 is adjacent to the cover 34, the pressure fluid is displaced from the pressure cavity 6 and flows through the pipeline 8 through the valve 9 (position 1) and enters the pipeline 10. Next, the working fluid flows through the valve 11 (position 2) and through the pipelines 12 and 13 directly to the cylinder 14 is locked.
    The valve 11 is connected to the cylinder with a single-sided piston rod. The rods 35 come out of the cylinder 14 and are locked. They are connected to the clamping sleeve 31 and rotate it by a certain angle of rotation. Therefore, the outer cams 30 of the columns 29 and the internal teeth 38 of the clamping sleeve 31 are arranged one behind the other. Thus, during one working stroke, the movable plate 26 moves synchronously to the closing side and locks it with the fixed plate 27. Excess working fluid that is not needed for the implementation of this working stroke flows through pipelines 8, 10 and 16 through the valve set 9 (position 1) and 1 (position 1) and through the valve 15 to limit the pressure in the tank 5. The locking sleeve 31 and the cams 30 of the columns 29 are securely locked by the action of the locking cylinders 14. Moving the movable plate is not interrupted, ensuring a gradual transition to increased closing force. This process is implemented as follows: fixed on the rod 35 of the cylinder 14, locking the cam 51 actuates the limit switch 50 immediately after the end of the locking stroke. Limit switch 50 is electrically connected to valves I and 9, valves 1 and 9 are switched to position 2. Piston 18 may be subjected to pressure from one side. Its pressure chamber 17 is connected to the leveling tank 21 by means of a pipe 19 and a valve 20 (position 1). A pipe 49 establishes a connection between the leveling tank 21 and the tank 5, a constant leveling of the variable volume of the working fluid takes place.
    The increase in closure pressure is realized as follows. The hydraulic pump 3 transports the hydraulic fluid through the klatsilindra 14 lock. The clamping sleeve 31 is rotated to the initial position and the cams 30 of the columns 29 move along the axial grooves 33 of the clamping sleeve 31 to the initial position. Thus, during one working cycle, the clamping sleeve is simultaneously released and the node is opened without additional time costs. When released from locking cylinder 14, the working
    Pan 1 in the pipeline 10. It gets from one to 10 liquid. It flows without pressure on the pipe side into the pressure cavity 17 of the cylinder 47 through the valve 9 and the pipe 22, and on the other side in the pressure cavity 37 and 40 of the cylinder 14 is locked through the valve 11 and the pipes 12 and 13. The pressure created by the hydraulic pump 3 is limited pressure limiting valve 23. Displaced from the pressure cavity b of the cylinder 7, the volume of working fluid flows through the pipeline 8 to the duct 13 and through the valve 11 to the tank 5. To reduce the technical costs, the locking mechanism uses a lever mechanism 41. All four locking mechanisms 5 are connected and simultaneously driven in action one common lever mechanism 41 (Fig. 5). The required locking devices, for example, the clamping sleeve 31, are actuated simultaneously under the influence of the cylinder 14 of the locking using
    cut the valve 9 into the pipeline 48 and through the lever lever mechanism 41. The cylinder 14 has a gate valve 24 into the tank 5. The check valve 24 holds back a certain amount of working fluid in the cylinder 47 of the circuit.
    After casting and cooling of the casting, the working cavity 6 of the opening cylinder 7 is subjected to pressure by means of a hydraulic pump 3 by means of pipes 2, 10 and 8 and a set of valves 1 (position 2) and 9 (position 1). At the same time in
    The pyrani is connected to the lever mechanism 41 via the axis 42 and locks or unlocks (unlocks) all four clamping sleeves 31 and columns 29. It should be noted that in describing the invention only one locking mechanism is taken into account, i.e. one clamping sleeve 31 and one column 29 with corresponding closing and closing cylinders 47 and opening 7. This invention relates to the erasing of one working stroke to the 30th overall construction of injection molding machines
    The release of the mechanism, the working cavity 40 of the cylinder 14 is locked and subjected to pressure by means of pipelines 2, 10 and 12 and a set of valves 1 (position 2) and 11 (position 1). The hydraulic pump 3 starts to pump working fluid through the pipeline 2 and the valve 1 (position 2) into the pipeline 10. The pipeline 10 is connected on one side with the cavity 6 of the cylinder 7 to open with valve 9 (position 1) and pipeline 8 and on the other side with cylinder 14, lock through valve 11 (position 1) and pipeline 12. By this switching, the piston 18 is switched to the extreme left position under the influence of piston 46 and at the same time the mechanism is unlocked by the action of the elements.
    with four columns. According to the number of columns 29, there are four opening cylinders 7 and four closing cylinders 47, as well as four clamping sleeves 31, respectively, preferably driven by one common cylinder 14 of locking. All four cylinders of the uncoupling 7 and the closures 47 are included in parallel operation. Each of these is associated with one clamping sleeve, which outlines the function of the locking element. Thus, the invention ensures reliable synchronous operation of all four opening cylinders 7 and closing 47, as well as the corresponding clamping sleeves 31, which perform the function of locking
    cylinder 14 lock up. The clamping sleeve 31 is rotated to the initial position and the cams 30 of the columns 29 move along the axial grooves 33 of the clamping sleeve 31 to the initial position. Thus, during one working cycle, the clamping sleeve is simultaneously released and the node is opened without additional time costs. When released from locking cylinder 14, the working
    liquid. It flows without pressure through conduit 13 and through valve 11 into tank 5. A lever mechanism 41 is used to reduce technical costs in the locking mechanism. All four locking mechanisms are connected and simultaneously actuated by one common lever mechanism 41 (Fig. 5) . The required locking devices, for example, the clamping sleeve 31, are actuated simultaneously under the influence of the cylinder 14 of the locking using
    lever mechanism 41. Cylinder 14 is locked with lever mechanism 41 through axis 42 and locks or unlocks (unlocks) all four clamping sleeves 31 and columns 29. It should be noted that the description of the invention takes into account only one locking mechanism, i.e. one clamping sleeve 31 and one column 29 with corresponding closing and closing cylinders 47 and opening 7. This invention relates to the overall overall construction of casting machines
    items.
    with four columns. According to the number of columns 29, there are four opening cylinders 7 and four closing cylinders 47, as well as four clamping sleeves 31, respectively, preferably driven by one common cylinder 14 of locking. All four cylinders of the uncoupling 7 and the closures 47 are included in parallel operation. Each of them is associated with one clamping sleeve, which fulfills the function of the locking element. Thus, the invention ensures reliable synchronous operation of all four opening cylinders 7 and closing 47, as well as the corresponding clamping sleeves 31, which perform the function of locking
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    权利要求:
    Claims (2)
    [1]
    1. LOCKING MECHANISM
    PRESSURE CASTING MACHINES, comprising movable and fixed half-plate attachment plates, movable plate movement cylinders, half-form closure cylinders fixed to the plates, cam tabs interacting with clamping sleeves mounted rotatably in the fixed half-form and fixed to the lock cylinder pistons, a hydraulic system control, including a hydraulic pump and solenoid valves, characterized in that, in order to ensure speed and increase reliability, it is equipped with a the locking cylinders 14, the rods 35 of which are connected with the clamping sleeves 31, and the opening cylinder 7, and at least the rod of one of the locking cylinders is equipped with a cam 51, interconnecting with the limit switch 50 located on the body of the opening cylinder 7, in the hydraulic control system valve 1 is installed behind the hydraulic pump 3 and is connected by a branching pipe 10 with the main solenoid valve 9 and the auxiliary solenoid valve 11, and the pipe 4 with a drain 5, while the cavity of the cylinder 14 abnormalities are connected to the solenoid valve 1 through the auxiliary solenoid valve 11 and pipelines 12 and 13, the cavity 17 of the closing cylinder 47 is connected to the cavity 6 of the opening cylinder 7 through the pipes 8 and 22 and the main solenoid valve 9, and the closing cylinder 47 is connected on one side by a pipeline 19 through the solenoid valve 20 with the leveling tank 21 connected to the drain 5 and, on the other hand, through the pipe 22, the main solenoid valve 9, the pipe 48 and the check valve 24 with the drain 5, while romagnity valves 1 and 9 are electrically connected with the limit switch 50.
    locking by π. 1, different. equipped with a lever mesoconnected by
    [2]
    2. Mechanized by the fact that by a mechanism 41, of a hinge 42 with a locking cylinder 14 and connecting sleeves 31.
    >
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1287975A1|1987-02-07|Locking mechanism of die casting machine
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    US3482284A|1969-12-09|Dual injection-molding machine
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    US3104433A|1963-09-24|Die casting and pressure molding machines
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    US3788794A|1974-01-29|Clamping unit with a turning plate for an injection molding machine
    CA1119376A|1982-03-09|Die-casting machine
    US2335807A|1943-11-30|Mold locking mechanism
    US3588957A|1971-06-29|Injection molding machine
    SU1152706A1|1985-04-30|Hydraulic system for controlling the locking mechanism of die casting machine
    JP2005527397A|2005-09-15|Closure device for plastic injection molding machine
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    KR920700808A|1992-08-10|Die casting machine
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    GB1383156A|1975-02-05|Die-casting machines
    SU749560A1|1980-07-23|Pressure die casting machine
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    SU1377169A1|1988-02-28|Apparatus for pressure casting of electric motor rotors
    SU831308A1|1981-05-23|Pressure die casting machine
    SU391902A1|1973-07-27|CHICKEN MACHINE
    同族专利:
    公开号 | 公开日
    FR2470674A1|1981-06-12|
    SE8008383L|1981-05-30|
    DE3034024A1|1981-06-04|
    IT8050255D0|1980-11-27|
    AT378500B|1985-08-12|
    IT1145296B|1986-11-05|
    ATA460580A|1985-01-15|
    CS268756B1|1990-04-11|
    GB2064415B|1983-04-07|
    DE3034024C2|1987-01-02|
    FR2470674B1|1986-02-07|
    DD146406A1|1981-02-11|
    GB2064415A|1981-06-17|
    BG37256A1|1985-05-15|
    SE434357B|1984-07-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2445209C2|2007-06-26|2012-03-20|Чэнь Сюн Ассет Менеджмент Лимитед|Injection moulding machine|DE1136799B|1955-03-19|1962-09-20|Iaindustrieia V H V Lohuizen &|Die casting machine|
    US3465387A|1967-06-12|1969-09-09|Improved Machinery Inc|Two-stage clamping machine|DE3503623C2|1985-02-02|1992-11-05|Hans 5428 Nastaetten De Erlenbach|
    US4874309A|1987-06-22|1989-10-17|Mitsubishi Jukogyo Kabushiki Kaisha|Die clamping apparatus|
    DE3934622C2|1988-11-24|1994-02-24|Hemscheidt Maschtech Schwerin|Rapid traverse drive for the clamping unit of an injection molding machine|
    DE3934359C2|1988-11-24|1994-02-17|Hemscheidt Maschtech Schwerin|Rapid traverse drive for clamping units of injection molding machines|
    FR2644391A1|1989-03-14|1990-09-21|Staubli Sa Ets|CLAMPING DEVICE FOR THE INTERCHANGEABLE FIXING OF CONFORMING MOLDS ON THE MOLDING PRESSES|
    JPH0730336Y2|1989-06-20|1995-07-12|宇部興産株式会社|Molding machine clamping device|
    DD291960A5|1990-02-15|1991-07-18|Plastmaschinenwerk Schwerin,De|INJECTION MOLDING MACHINE FOR PLASTIC PROCESSING|
    DE4431260C1|1994-09-02|1995-10-26|Hemscheidt Maschtech Schwerin|Hydraulic circuit for injection moulding machine|
    DE19516125C1|1995-05-03|1996-06-05|Battenfeld Fischer Blasform|Tool closure on plastics processing machine process equipment|
    CA2177950C|1995-06-07|2000-01-25|Pierre Glaesener|Injection molding machine with associated securing/clamping assembly and related control system and method|
    US5645875A|1995-06-07|1997-07-08|Husky Injection Molding Systems Ltd.|Securing/clamping assembly for injection molding machines|
    LU88624A1|1995-06-12|1997-01-03|Wurth Paul Sa|Hydraulic locking unit|
    LU88622A1|1995-06-12|1997-01-03|Wurth Paul Sa|Closing unit for an injection molding machine|
    LU88623A1|1995-06-12|1997-01-03|Wurth Paul Sa|Closing unit for an injection molding machine|
    US5753153A|1996-01-02|1998-05-19|Husky Injection Molding Systems Ltd.|Method for mold clamping units|
    DE19719870A1|1997-05-12|1998-11-19|Hemscheidt Maschinentechnik Gm|Closing unit for a plastic injection molding machine|
    BR9800139C1|1998-03-23|2000-03-14|Ind Romi S A Ind Romi S A|Development in mold locking mechanism|
    US6334768B1|1999-08-11|2002-01-01|Husky Injection Molding Systems Ltd.|Blow molding clamp arrangement|
    IT1309571B1|1999-10-28|2002-01-23|Polimate S R L|MACHINE FOR FORMING POLYSTYRENE ELEMENTS WITH MECHANICAL MOLD RELEASE SYSTEM|
    US6524091B2|2000-12-28|2003-02-25|Industrias Romi, S.A.|Pressure control mechanism for a molding apparatus|
    JP2003117646A|2001-10-11|2003-04-23|Toyota Industries Corp|Die holding device, and die holding method|
    US7479005B2|2007-04-24|2009-01-20|Husky Injection Molding Systems Ltd|Molding system having clamp actuator having actuator mount|
    US7497678B2|2007-07-05|2009-03-03|Husky Injection Molding Systems Ltd|Clamp piston assembly with mold break function|
    CN102239037B|2008-10-03|2014-04-30|雅典娜自动化股份有限公司|Mold motion control system for an injection molding machine|
    CN106626290A|2016-11-30|2017-05-10|宁波欧意莱机械制造有限公司|Mould opening/closing mechanism of injection moulding machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD21722979A|DD146406A1|1979-11-29|1979-11-29|METHOD AND HYDRAULIC CIRCUIT ARRANGEMENT FOR INJECTION MOLDING|
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