• 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:
    Forming machine, comprising an injection unit and a closing unit, wherein the closing unit comprises at least: a machine bed (1), two platens (2, 3), of which the first platen (2) is fixedly connected to the machine bed (1) and the second platen (3) is arranged movable relative to the first platen (2), a hydraulic Eilhubvorrichtung for moving the second platen (3) relative to the first platen (2), wherein the hydraulic Eilhubvorrichtung at least a first piston-cylinder assembly (4) and a second piston-cylinder arrangement (5), which are arranged independently in or on the closing unit, a conveying device (6) for conveying hydraulic fluid, wherein it is further provided with respect to the closing unit, that a cylinder (41) of the first Piston-cylinder assembly (4) with the first platen (2) is connected and a piston (42) of he Most piston-cylinder arrangement (4) via a piston rod (43) with the second platen (3) is connected, a cylinder (51) of the second piston-cylinder arrangement (5) with the machine bed (1) is connected and a Piston (52) of the second piston-cylinder assembly (5) via a piston rod (53) with the second platen (3) is connected, the closing unit comprises a first hydraulic line (7), which the conveyor device (6) in a hydraulic parallel connection with a rod side (44) of the cylinder (41) of the first piston-cylinder arrangement (4) and a piston side (55) of the cylinder (51) of the second piston-cylinder arrangement (5) connects and the closing unit a second hydraulic line ( 8), which the conveying device (6) in a hydraulic parallel connection with a piston side (45) of the cylinder (41) of the first piston-cylinder assembly (4) and a rod side (54) of the cylinder (51) of the second piston cylinder FORMATION ung (5) connects.
    公开号:AT520173A4
    申请号:T50044/2018
    申请日:2018-01-19
    公开日:2019-02-15
    发明作者:Ing Dipl (Fh) Günter Schott；Anton Lohnecker Ing
    申请人:Engel Austria Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a molding machine with the features of
    Preamble of claim 1.
    Generic shaping machines have independent piston-cylinder arrangements, with hydraulic fluid (usually hydraulic oil) always being applied to either the piston sides or the rod sides of the piston-cylinder arrangements to carry out the opening or closing process. The disadvantage is u. a. the space requirement of the piston rods of the piston-cylinder arrangements.
    A non-generic shaping machine emerges from the
    WO 2011/079 333 A2. It is a press that has no injection unit. The first piston-cylinder arrangement and the second piston-cylinder arrangement are not arranged independently of one another in or on the clamping unit, but rather as a common structural unit. An opposite arrangement of two piston-cylinder arrangements is shown. This is a special variant of a double arranged synchronous cylinder with a continuous piston rod, the two piston rods having different rod diameters. Piston-cylinder arrangements with a continuous piston rod have several disadvantages compared to cylinders with a simple piston rod (where the piston rod is only arranged on one side of the piston):
    - they build much longer
    - An additional sealing system is required, which the
    Leakage probability increased
    - They are significantly more complex to manufacture and therefore more expensive
    Especially when used in a clamping unit of a molding machine with an injection unit, there is the additional disadvantage that the outstanding, continuous piston rods towards the injection side would pose massive design problems.
    The object of the invention is to provide a generic molding machine in which the problems discussed above are avoided.
    / 18th
    83169 36/28
    This object is achieved by a shaping machine with the features of claim 1. Advantageous embodiments of the invention are defined in the dependent claims.
    In short, the invention provides a mutually mirrored arrangement of the first and the second piston-cylinder arrangements, a first variant according to claim 1 and a second variant according to claim 2 differing only in whether the second platen with the piston rods of the two Piston-cylinder arrangements is connected (claim 1) or with the cylinders of the two piston-cylinder arrangements (claim 2). The space required for the piston rods is reduced. It is possible to operate a closed hydraulic circuit.
    The piston-cylinder arrangements are preferably provided with single-acting cylinders (the first and second piston-cylinder arrangements are particularly preferably of the same construction).
    The piston-cylinder arrangements are very particularly preferably provided with simple piston rods, that is to say those piston rods which are arranged only on one side of a piston.
    The use of a constant pump for conveying the hydraulic fluid through the conveying device is particularly favorable in terms of energy.
    It is preferably provided that the molding machine is designed as a horizontal machine, so that the second platen can be moved in a horizontal direction relative to the first platen. Training as a vertical machine would also be conceivable.
    It is particularly preferably provided that the molding machine is designed as a plastic injection molding machine.
    It can preferably be provided that a third platen is provided in the form of a central plate. The middle plate can either use a / 18
    83169 36/28 any drive (as known from the prior art) or by a third and a fourth piston-cylinder arrangement. There are four options when using a third and a fourth piston-cylinder arrangement:
    - The cylinder of a third piston-cylinder arrangement is connected to the first platen, the piston rod of the third piston-cylinder arrangement is connected to the middle plate, the cylinder of a fourth piston-cylinder arrangement is connected to the machine bed and the piston rod of the fourth piston -Cylinder arrangement is connected to the center plate or
    - The cylinder of the third piston-cylinder arrangement is connected to the middle plate, the piston rod of the third piston-cylinder arrangement is connected to the first platen, the cylinder of the fourth piston-cylinder arrangement is connected to the middle plate and the piston rod of the fourth piston -Cylinder arrangement is connected to the machine bed or
    - The cylinder of the third piston-cylinder arrangement is connected to the second platen, the piston rod of the third piston-cylinder arrangement is connected to the middle plate, the cylinder of the fourth piston-cylinder arrangement is connected to the machine bed and the piston rod of the fourth piston-cylinder Arrangement is connected to the center plate, or
    - The cylinder of the third piston-cylinder arrangement is connected to the middle plate, the piston rod of the third piston-cylinder arrangement is connected to the second platen, the cylinder of the fourth piston-cylinder arrangement is connected to the middle plate and the piston rod of the fourth piston -Cylinder arrangement is connected to the machine bed.
    / 18th
    83169 36/28
    Exemplary embodiments of the invention are discussed on the basis of the figures. Show it:
    Fig. 1 shows a first embodiment of the invention during the closing process
    Fig. 2 shows the first embodiment of the invention in the opening process
    Fig. 3 shows a second embodiment of the invention during the closing process
    Fig. 4 shows the second embodiment of the invention in the opening process
    Fig. 5 shows a third embodiment of the invention, in which a third
    Platen is provided in the form of a central plate.
    1 shows the clamping unit of a shaping machine according to the invention (according to the first variant of the invention) in the form of a horizontal machine. The injection unit is not shown because it can be designed according to the prior art, but would be to the right of the first platen 2.
    Of course, further injection units can also be provided, which would have to be arranged at other positions, as is known from the prior art.
    Of course, another (movable or fixed) platen can also be provided, in contrast to the illustration.
    A first mold clamping plate 2 (which is fixedly connected to the machine bed 1) and a second mold clamping plate 3 (which can be moved along the machine bed 1 relative to the first mold clamping plate 2) are arranged on a machine bed 1.
    A rapid lifting device is provided for moving the second platen 3, which has at least one first piston-cylinder arrangement 4 and at least one second piston-cylinder arrangement 5 (in fact, a plurality of first and / or second piston-cylinder arrangements 4, 5 can be provided his).
    / 18th
    83169 36/28
    Hydraulic fluid can be conveyed by means of a conveying device 6, which is designed here as a motor-driven pump.
    A cylinder 41 of the first piston-cylinder arrangement 4 is connected to the first platen 2 and a piston 42 of the first piston-cylinder arrangement 4 is connected to the second platen 3 via a piston rod 43.
    A cylinder 51 of the second piston-cylinder arrangement 5 is connected to the machine bed 1 and a piston 52 of the second piston-cylinder arrangement 5 is connected to the second platen 3 via a piston rod 53. The connection of the cylinder 51 of the second piston-cylinder arrangement 5 to the machine bed 1 could also be made indirectly via a further mold mounting plate, not shown (which is fixed or displaceable relative to the first mold mounting plate 2).
    A first hydraulic line 7 is provided, which connects the conveying device 6 in a hydraulic parallel connection with a rod side 44 of the cylinder 41 of the first piston-cylinder arrangement 4 (via the first partial line 71 and the third partial line 73 of the first hydraulic line 7) and a piston side 55 of the cylinder 51 of the second piston-cylinder arrangement 5 (via the first partial line 71 and the second partial line 72 of the first hydraulic line 7).
    A second hydraulic line 8 is provided, which conveys the conveying device 6 in a hydraulic parallel connection with a piston side 45 of the cylinder 41 of the first piston-cylinder arrangement 4 (via the first partial line 81 and the second partial line 82 of the second hydraulic line 8) and a rod side 54 of the cylinder 51 of the second piston-cylinder arrangement 5 (via the first sub-line 81 and the third sub-line 83 of the second hydraulic line 8).
    The piston sides 45, 55 and the rod sides 44, 54 of the cylinders 41, 51 and the diameters of the pistons 42, 52 and the piston rods 43, 53 are dimensioned such that the delivery volume of hydraulic fluid conveyed by the delivery device 6 via the first hydraulic line 7 is at least essentially that by means of / 18
    83169 36/28
    Delivery device 6 corresponds to the delivery volume of hydraulic fluid delivered via the second hydraulic line 8. This enables a closed circuit for the hydraulic fluid. 1 and 2, the conditions for an overall delivery volume Q conveyed by the conveying device 6 are given by way of example.
    To compensate for different dimensions, at least one compensation reservoir for hydraulic fluid connected to the first hydraulic line 7 and / or to the second hydraulic line 8 can be provided (not shown). This can be designed, for example, as a bladder accumulator known per se.
    The conveying device 6 is designed to move hydraulic fluid via the first hydraulic line 7 simultaneously to the rod side 44 of the cylinder 41 of the first piston-cylinder arrangement 4 and to the piston side 55 for moving the second platen 3 in a first direction (here: closing direction) to promote the cylinder 51 of the second piston-cylinder arrangement 5 (see FIG. 1). The hydraulic fluid displaced in the closing direction from the piston side 45 of the first piston-cylinder arrangement 4 and the rod side 54 of the second piston-cylinder arrangement 5 when the second platen 3 is moved reaches the delivery device via the second hydraulic line 8.
    The conveying device 6 is designed to move the second platen 3 in a second direction (opening direction) opposite the first direction, hydraulic fluid via the second hydraulic line 8 simultaneously to the piston side 45 of the cylinder 41 of the first piston-cylinder arrangement 4 and to the rod side 54 to promote the cylinder 51 of the second piston-cylinder arrangement 5 (see FIG. 2). The hydraulic fluid displaced in the opening direction from the rod side 44 of the first piston-cylinder arrangement 4 and the piston side 55 of the second piston-cylinder arrangement 5 during the movement of the second platen 3 reaches the delivery device via the first hydraulic line 7.
    The second variant of the invention, which is shown in FIGS. 3 and 4, differs from the first variant shown in FIGS. 1 and 2 only in that not the piston rods 43, 53 with the second platen 3/18
    83169 36/28 and the cylinders 41, 51 are connected to the first platen 2, but an inverted design is provided.
    In the second variant of the invention, the conveying device 6 is designed for this purpose:
    - For moving the second platen 3 in a first direction (here: opening direction) hydraulic fluid via the first hydraulic line 7 simultaneously to the piston side 45 of the cylinder 41 of the first piston-cylinder arrangement 4 and to the rod side 54 of the cylinder 51 of the second piston -Cylinder arrangement 5 to be conveyed (cf. FIG. 4) and - for moving the second platen 3 in a second direction (closing direction) opposite the first direction, hydraulic fluid via the second hydraulic line 8 simultaneously to the rod side 44 of the cylinder 41 of the first piston -Cylinder arrangement 4 and to promote the piston side 55 of the cylinder 51 of the second piston-cylinder arrangement 5 (see. Fig. 3).
    Apart from the difference in construction discussed above, all of the statements made with reference to FIGS. 1 and 2 also apply to FIGS. 3 and 4.
    In the exemplary embodiment in FIG. 5, a third platen in the form of a central plate 9 is provided. Both variants of the invention can also be used here. This embodiment is particularly suitable for the use of a center plate 9, a rotating cube or the like. The middle plate 9 shown here can either be driven by any drive (as known from the prior art) or can be driven as in FIGS. 1 to 4.
    / 18th
    83169 36/28
    LIST OF REFERENCE NUMBERS
    Machine bed first platen (firmly connected to the machine bed) second platen (arranged movable relative to the first platen) first piston-cylinder arrangement
    Cylinder of the first piston-cylinder arrangement
    Piston of the first piston-cylinder arrangement
    Piston rod of the first piston-cylinder arrangement
    Rod side of the piston of the first piston-cylinder arrangement
    Piston side of the piston of the first piston-cylinder arrangement, second piston-cylinder arrangement
    Cylinder of the second piston-cylinder arrangement
    Piston of the second piston-cylinder arrangement
    Piston rod of the second piston-cylinder arrangement
    Rod side of the piston of the second piston-cylinder arrangement
    Piston side of the piston of the second piston-cylinder arrangement
    Conveying device first hydraulic line first partial line of the first hydraulic line second partial line of the first hydraulic line third partial line of the first hydraulic line second hydraulic line first partial line of the second hydraulic line second partial line of the second hydraulic line third partial line of the second hydraulic line
    center plate
    Q Delivery volume of the conveyor
    权利要求:
    Claims (14)
    [1]
    claims:
    1. Molding machine with an injection unit and a clamping unit, the clamping unit having at least:
    - a machine bed (1) - two mold mounting plates (2, 3), of which the first mold mounting plate (2) is firmly connected to the machine bed (1) and the second mold mounting plate (3) is arranged to be movable relative to the first mold mounting plate (2) - a hydraulic rapid lifting device for moving the second platen (3) relative to the first platen (2), the hydraulic rapid lifting device having at least a first piston-cylinder arrangement (4) and a second piston-cylinder arrangement (5), which are independent of each other in or are arranged on the clamping unit - a conveying device (6) for conveying hydraulic fluid, characterized in that, in relation to the clamping unit, it is further provided that:
    - A cylinder (41) of the first piston-cylinder arrangement (4) is connected to the first platen (2) and a piston (42) of the first piston-cylinder arrangement (4) via a piston rod (43) to the second platen ( 3) is connected
    - A cylinder (51) of the second piston-cylinder arrangement (5) is connected to the machine bed (1) and a piston (52) of the second piston-cylinder arrangement (5) via a piston rod (53) with the second platen (3 ) is connected - the clamping unit has a first hydraulic line (7), which conveys the conveying device (6) in a hydraulic parallel connection with a rod side (44) of the cylinder (41) of the first piston-cylinder arrangement (4) and a piston side (55 ) of the cylinder (51) of the second piston-cylinder arrangement (5)
    - The clamping unit has a second hydraulic line (8), which the conveying device (6) in a hydraulic parallel connection with a
    10/18
    83169 36/28
    Connects piston side (45) of the cylinder (41) of the first piston-cylinder arrangement (4) and a rod side (54) of the cylinder (51) of the second piston-cylinder arrangement (5).
    [2]
    2. Molding machine according to the preamble of claim 1, characterized in that it is further provided in relation to the clamping unit that:
    - A cylinder (41) of the first piston-cylinder arrangement (4) is connected to the second platen (3) and a piston (42) of the first piston-cylinder arrangement (4) via a piston rod (43) to the first platen ( 2) is connected
    - A cylinder (51) of the second piston-cylinder arrangement (5) is connected to the platen (2) and a cylinder (51) of the second piston-cylinder arrangement (5) via a piston rod (53) with the machine bed ( 1) is connected
    - The clamping unit has a first hydraulic line (7), which the conveying device (6) in a hydraulic parallel connection with a piston side (45) of the cylinder (41) of the first piston-cylinder arrangement (4) and a rod side (54) of the cylinder (51) of the second piston-cylinder arrangement (5) connects
    - The clamping unit has a second hydraulic line (8), which the conveying device (6) in a hydraulic parallel connection with a rod side (44) of the cylinder (41) of the first piston-cylinder arrangement (4) and a piston side (55) of the cylinder (51) of the second piston-cylinder arrangement (5) connects.
    [3]
    3. Molding machine according to claim 1 or 2, wherein the piston sides (45, 55) and the rod sides (44, 54) of the cylinders (41, 51) are dimensioned such that this is by means of the conveying device (6) via the first hydraulic line (7 ) conveyed volume of hydraulic fluid at least essentially corresponds to the conveyed volume of hydraulic fluid conveyed by means of the conveying device (6) via the second hydraulic line (8).
    11/18
    83169 36/28
    [4]
    4. Molding machine according to at least one of the preceding claims, wherein the conveyor device (6) is designed for this purpose:
    - For a method of the second platen (3) in a first direction hydraulic fluid via the first hydraulic line (7) simultaneously to the rod side (44) of the cylinder (41) of the first piston-cylinder arrangement (4) and to the piston side (55) of the Promote cylinder (51) of the second piston-cylinder arrangement (5) and
    - For a method of the second platen (3) in a direction opposite to the first, second direction hydraulic fluid via the second hydraulic line (8) simultaneously to the piston side (45) of the cylinder (41) of the first piston-cylinder arrangement (4) and to promote the rod side (54) of the cylinder (51) of the second piston-cylinder arrangement (5)
    [5]
    5. Molding machine according to claim 1 and claim 4, wherein the first direction is a closing direction of the clamping unit and the second direction is an opening direction of the clamping unit.
    [6]
    6. Molding machine according to claim 2 and claim 4, wherein the first direction is an opening direction of the clamping unit and the second direction is a closing direction of the clamping unit.
    [7]
    7. Molding machine according to at least one of the preceding claims, wherein at least one with the first hydraulic line (7) and / or with the second hydraulic line (8) connected to the accumulator for hydraulic fluid is provided.
    [8]
    8. Molding machine according to at least one of the preceding claims, wherein the conveying device (6), the first hydraulic line (7), the second hydraulic line (8), the first piston-cylinder arrangement (4) and the second piston-cylinder arrangement ( 5) form a closed hydraulic circuit.
    12/18
    83169 36/28
    [9]
    9. Molding machine according to at least one of the preceding claims, wherein the conveying device (6) has a motor-driven pump, preferably a constant pump.
    [10]
    10. Molding machine according to at least one of the preceding claims, wherein between the first platen (2) and the second platen (3) a third platen in the form of a central plate (9) is provided.
    [11]
    11. Molding machine according to at least one of the preceding claims, wherein the clamping unit is designed as a two-plate clamping unit.
    [12]
    12. Molding machine according to at least one of the preceding claims, wherein the piston rod (43) of the first piston-cylinder arrangement (4) is arranged only on one side of the piston (42) of the first piston-cylinder arrangement (4) and / or the piston rod (53) of the second piston-cylinder arrangement (5) is arranged only on one side of the piston (52) of the second piston-cylinder arrangement (5).
    [13]
    13. Molding machine according to at least one of the preceding claims, wherein the molding machine is designed as a horizontal machine, so that the second platen (3) can be moved in a horizontal direction relative to the first platen (2).
    [14]
    14. Molding machine, according to at least one of the preceding claims, wherein the molding machine is designed as a plastic injection molding machine.
    类似技术:
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    DE2041185B2|1975-01-30|Plastics processing machine, in particular injection molding machine or blow molding machine, with cooperating and synchronous strokes executing hydraulic piston-cylinder units
    DE2306566C2|1983-11-17|Hydraulic drive for forging machines
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    EP2479016A2|2012-07-25|Vertical two platens locking unit
    EP0043527B1|1983-10-12|Horizontal diecasting machine
    DE2345527A1|1975-03-20|HORIZONTAL HIGH SPEED FORGING PRESS
    DE4320430C2|2003-11-20|Transfer Press complex
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    EP2114587B1|2012-07-11|Forming press with a drawing cushion function integrated into the sliding table
    AT518645B1|2017-12-15|Cylinder plate for an injection unit
    DE102011001615A1|2012-10-04|Plastic blow mold receiving arrangement has driving piston that is supported on main piston, and main cylinder to apply closing force to mold when forming mold
    DD271083B5|2000-04-20|Device for connecting and disconnecting the printing cylinder
    EP3243645A1|2017-11-15|Forming tool and method of controlling a forming tool
    DE2819190A1|1979-11-15|Injection moulding machine with fixed and movable crossheads - has detachable tie rods widening scope, facilitating mould changes
    同族专利:
    公开号 | 公开日
    DE102019100287B4|2021-06-17|
    DE102019100287A1|2019-07-18|
    AT520173B1|2019-02-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2003084733A1|2002-04-05|2003-10-16|Billion S.A.|Hydraulic device for back and forth displacement of a machine piece and a closing unit on an injection moulding machine fitted with such a hydraulic device|
    AT502698A2|2005-10-24|2007-05-15|Horst Baltschun|HYDRAULIC CLOSING DEVICE FOR SPRAYING AND DIE CASTING MACHINES|
    GB2074928A|1980-03-06|1981-11-11|Tradesco Mold Ltd|Device for translating motion in one direction into proportional motion in the same direction|
    DE10143013A1|2001-09-03|2003-03-20|Bosch Rexroth Ag|Hydraulic assembly for injection molding machine closure and injection, includes reference instrument controlling compensation of internal leakage|
    DE102007007288A1|2007-02-14|2008-08-21|Robert Bosch Gmbh|Drive device, in particular for a movable component on a Kunststoffspritzgieß- or a blow molding machine|
    AT509239B1|2009-12-17|2013-03-15|Trumpf Maschinen Austria Gmbh|DRIVE DEVICE FOR A BEND PRESS|AT523856A1|2020-06-05|2021-12-15|Engel Austria Gmbh|Forming machine with a closed hydraulic drive system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT500372018|2018-01-18|DE102019100287.7A| DE102019100287B4|2018-01-18|2019-01-08|Forming machine|
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