• 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:
    Vertically closing closing unit for an injection molding machine (1) with a movable platen (2), - at least one spar (3) for guiding the movable platen (2), wherein a holding-up device (4) for locking the movable platen (2) with the at least one spar (3) is provided.
    公开号:AT513131A4
    申请号:T55/2013
    申请日:2013-01-28
    公开日:2014-02-15
    发明作者:Herbert Dipl Ing Zeidlhofer；Anton Ing Lohnecker
    申请人:Engel Austria Gmbh；
    IPC主号:
    专利说明:

    72866 32 / fr 72866 32 / fr * * ι Φ * * Μ
    The present invention relates to a vertically closing shooting unit for an injection molding machine with the features of the preamble of claim 1.
    For safety reasons, in vertically closing closing units of injection molding machines, holding devices must be provided which prevent a moving mold clamping plate from falling if there is a defect, for example the rapid traverse mechanism. These are attached to the rapid traverse devices in the prior art. In particular, in hydraulic rapid traversing devices, the holding-up devices are designed as clamping devices which, if necessary, act directly on the rapid traverse cylinders. A basic problem with such hold-up devices is that structural failure of certain components of the rapid traverse device or the holding devices - such as a breakage of fastening bolts - the mobile mold clamping plate still crashes. As a result, such components must be over-dimensioned in order to provide a certain safety cushion. Of course, this increases the manufacturing cost of such Schfießeinheiten in height.
    The object of the invention is to provide a vertically closing closing unit for an injection molding machine, which is equipped with a more cost-effective and safer holding device.
    This object is achieved with a vertically closing closing unit with the features of claim 1.
    This is done by a holding-up device is provided for locking the movable platen with the at least one spar. The fact that the spars are built in any case strong enough to hold the movable platen, resulting in a reduction of components that must be built with a safety margin. This leads to increased safety and reduced manufacturing costs.
    Further advantageous embodiments of the invention are defined in the dependent claims. 72866 32 / fr »'* # ι · · ♦ · · 2 · · ·
    ft ft · · · · · · · · · · · · · · · · · · · · · · Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für Für.
    It is preferably provided that the locking takes place by positive engagement of the holding-up device with a lying on the at least one spar at least one support surface. Force-fit hold-up devices such as redundant clamping devices are on the one hand expensive and must be regularly checked on the other hand - usually once a month. Of course, this is detrimental to productivity. Such disadvantages are avoided by a positive locking.
    Particularly preferred is an embodiment in which the hold-up device is formed by a locking mechanism which serves to lock the movable platen in a closing pressure build-up. Due to the double use of the locking mechanism, this represents a particularly cost-effective embodiment.
    This dual use is particularly easy to implement if the locking mechanism is designed as at least one - preferably split -locking nut.
    Particularly preferred is an embodiment in which, in the locked state, no force acting on unlocking the holding-up device acts when the locking drive is switched off, as this ensures safety even in the event of a failure of the locking drive.
    The positive locking can be realized particularly easily by the at least one support surface is formed by an upper side of the at least one spar.
    But it can also be provided that the at least one spar has an outer profile and the at least one support surface of at least one 72866 32 / fr
    Edge of the outer profile is formed. * §Esönders large machines can provide increased safety.
    It may be advantageous if the at least one spar is designed such that the retaining means with the at least one spar in each position of the movable platen is lockable, in particular that the outer profile extends so far over a length of the at least one spar that the hold-up device with the at least one spar in each position of the movable platen is lockable. For example, when assembling a new injection molding tool, this facilitates the work of the operator.
    The lock according to the invention can be provided for different positions of the movable platen, in particular for an upper maximum position of the movable platen. The upper maximum position can be defined by the maximum height of the platen, which can be achieved by means of the rapid traverse device.
    What type of rapid traverse device or the locking drive are not essential to the invention. For example, these may be hydraulic, electrical, magnetic or pneumatic.
    Protection is also desired for an injection molding machine with a closing unit according to the invention.
    Protection is further desired for a method of holding up a movable platen of a vertically closing clamping unit according to the invention, in order to guarantee safe access to the area of the closing unit for operating personnel. This can be achieved by locking the lifting device according to the invention, reducing a lifting force exerted by the rapid traverse device and outputting a signal which signals an access authorization to the operating personnel when a force limit value is exceeded by the lifting force, 72866 32 / fr
    It can be provided that hurry movable platen is locked in the upper maximum position or in any Zwischenstetlungen.
    It can further be provided that for carrying out the method, only one key on an operating unit must be actuated and the various method steps are then carried out by the machine control. However, it can also be provided that for carrying out the method by the machine control a key must remain actuated, that is, the operator must remain with his finger on the key.
    In order to provide as much space as possible for the operator, for example, it can be provided that the movable mold clamping plate is moved to an upper maximum position prior to the locking of the hold-up device.
    In order to realize a purely mechanical holding device in machines with movable bars, it can be provided that before the signal is output, the at least one bar is moved to a lowermost position of a calibrated stroke.
    For easy recognizability, it can be provided that this signal is output optically, this preferably being done at access doors to the closing area.
    Further advantages and details of the invention can be seen from the figures and the associated description of the figures. Showing:
    1a is a schematic Schnittdarsteilung by a vertical clamping unit according to the invention, which is locked in an upper maximum position,
    Fig. 1b is a detailed view of the positive locking of Figure 1a, Figure 2 is a schematic sectional view of a vertical clamping unit according to the invention, which is locked in a middle position, ............ 72866 32 / fr • ·· · ·························································································.
    Fig. 3 is a schematic sectional view of an inventive
    Closing unit, which is locked in an upper maximum position and
    4 shows an injection molding machine with a vertical clamping unit according to the invention.
    In the closing unit shown schematically in Figure 1a are first the fixed platen 12, the movable form chuck 2, the spars 3, the rapid traverse devices 9, the pressure pad 13 and the hold-4 to recognize. The high-holding device 4 consists here of a split locking nut 6 per spar and a locking drive 7 for two locking nuts 6, wherein the locking drive 7 is formed here hydraulically. The Verriegelungsmuttem 6 are attached to the movable platen 2.
    The at least one support surface 5 is in this case formed by the upper side of the spars 3.
    This can be better seen in the detail view of FIG. 1b, in which the resting of an edge of an inner profile of a locking nut 6 on the upper side of a spar 3 is shown.
    In this first embodiment, the rapid traverse 9 is in the upper maximum position.
    As shown in Figure 2, in this embodiment, the movable platen 2 can be locked in a middle position, since the spars 3 have outer profiles 8.
    Two halves of split locking nuts 6 are coupled in a motion-locking manner via linkages.
    The at least one support surface 5 is formed in this case by lower flanks of the outer profile 8 of the spars 3 All other reference numerals correspond to those of Figure 1 and are not further mentioned below.
    FIG. 3 shows a further embodiment in which, even in the upper maximum position (as illustrated), holding-up by engagement of the locking nuts 6 in an outer profile 8 of the spars 3 is realized. This embodiment represents a particularly safe but also more expensive, since the spars must be longer than in the previous embodiments.
    FIG. 4 shows an injection molding machine 1 with a vertical closing unit 10 according to the invention and an injection unit 11.
    The present invention is not limited to the embodiments shown here. For example, the holding-up device can also be executed by a separate locking device - for example by a bolt-shaped bolt, which rests on the upper side of the spars or engages through a passage opening in the spars. Although all drives are hydraulically designed in the present embodiments. However, this is irrelevant, because the invention is just as applicable for electric drives or any other types of drives.
    Innsbruck, January 25, 2013
    权利要求:
    Claims (17)
    [1]
    72866 32/32 • Claims: 1. vertically closing closing unit for an injection molding machine (1) with - a movable platen (2), - at least one spar (3) for guiding the movable platen (2), characterized in that a holding-up device (4) for locking the movable platen (2) with the at least one spar (3) is provided.
    [2]
    2. Closing unit according to claim 1, characterized in that the holding-up device (4) with the movable platen (2) is connected.
    [3]
    3. Closing unit according to claim 1 or 2, characterized in that the locking by positive engagement of the holding-up device (4) with a at least one spar (3) lying at least one support surface (5).
    [4]
    4. Closing unit according to at least one of claims 1 to 3, characterized in that the holding-up device (4) by a locking mechanism, which serves for locking the movable platen (2) at a closing pressure build-up, is formed.
    [5]
    5. Closing unit according to claim 4, characterized in that the locking mechanism as at least one - preferably split locking nut (6) is formed.
    [6]
    6. Closing unit according to at least one of claims 1 to 5, characterized in that a locking drive (7) is provided, through which the holding-up device (4) can be locked. • J * i 2 • 4 • '' * * * * * * * * * * * ft * ft * ft *··········~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ / 32 ft · ···
    [7]
    7. Closing unit according to claim 6, characterized in that, in the locked state, no force acting on unlocking the high-holding device (4) acts when the locking drive (7) is switched off.
    [8]
    8. Closing unit according to at least one of claims 1 to 7, characterized in that the at least one support surface (5) from an upper side of the at least one spar (3) is formed.
    [9]
    9. Closing unit according to at least one of claims 1 to 8, wherein the at least one spar (3) has an outer profile (8), characterized in that the at least one support surface (5) of at least one flank of the outer profile (8) is formed ,
    [10]
    10. Closing unit according to at least one of claims 1 to 9, characterized in that the at least one spar (3) is designed such that the holding-up device (4) with the at least one spar (3) in each position of the movable platen (2). can be locked, in particular that the outer profile (8) so far over a length of the at least one spar (3) extends, that the holding-up device (4) with the at least one spar (3) in each position of the movable platen (2) is lockable
    [11]
    11. Closing unit according to at least one of claims 1 to 10, wherein a rapid traction device (9) for moving the movable platen (2) is provided in an upper maximum position, characterized in that the holding-up device (4) is lockable when the movable platen ( 2) is in the upper maximum position.
    [12]
    12. Closing unit according to at least one of claims 1 to 11, characterized in that the rapid traverse device (9) and / or the locking drive (7) is designed hydraulically, electrically, magnetically or pneumatically. ..... * ...... 72866 32/32 • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ··· ··· «····· *« · ·
    [13]
    13. Injection molding machine with a closing unit (10) according to at least one of claims 1 to 12.
    [14]
    14. A method for holding up a movable mold clamping plate (2) of a vertically closing clamping unit (10) according to at least one of claims 1 to 12, characterized in that - the high-holding device (4) is locked, - one of the rapid traverse device (9) exerted Lifting force is reduced and - when falling below a force limit value by the lifting force, a signal which signals the operator an access release is issued.
    [15]
    15. The method according to claim 14, characterized in that the movable platen (2) is moved before the locking of the hold-up device (4) in an upper Maximaistellung.
    [16]
    16. The method of claim 14 or 15 for a closing unit, whose at least one spar (3) is movable, characterized in that before the signal is output, the at least one spar (3) is moved to a lowermost pitch of a calibrated stroke.
    [17]
    17. The method according to at least one of claims 14 to 16, characterized in that the signal is output optically, which is preferably done to access doors to the closing area. Innsbruck, January 25, 2013
    类似技术:
    公开号 | 公开日 | 专利标题
    AT513131B1|2014-02-15|Closing unit for an injection molding machine
    DE102018101930A1|2018-08-02|Two-platen clamping unit
    DE102013014264A1|2014-03-06|Closing unit for an injection molding machine
    DE19539752C2|1999-09-23|Tie-bar-less two-plate injection molding machine
    EP0365911B1|1993-12-08|Press, in particular an injection-moulding machine
    DE102014001207B4|2018-01-18|Closing unit of an injection molding machine
    AT13625U1|2014-05-15|Closing unit for an injection molding machine
    DE102016006108A1|2016-11-24|Vertical clamping unit for a molding machine
    DE2929676B1|1980-09-18|Mold closing unit of an injection molding machine
    EP1858682B1|2013-11-13|Arrangement for receiving a blow mold
    EP0720525A1|1996-07-10|Double closing unit for an injection moulding machine
    WO2013072459A2|2013-05-23|Locking device for pillars of a plastics processing machine
    EP0585630A1|1994-03-09|Injection moulding machine
    DE102011014783B4|2016-04-21|Locking device for spars of a plastic processing machine
    DE3800234A1|1988-07-21|Tyre vulcanising machine
    EP1321278B1|2005-03-02|Apparatus for securing the open clamping unit of an injection moulding machine
    DE102006026608A1|2007-12-13|Twin plate column drawing assembly for a press or injection molding assembly with column drive moves between closed and open presentations
    AT14944U1|2016-09-15|Closing unit of a molding machine
    EP0313035A2|1989-04-26|Closing device for an injection moulding machine
    DE1967106B2|1978-06-15|Molding press for plastic objects
    AT399843B|1995-07-25|Mould closing and locking device
    DE102018124608A1|2020-04-09|Mold clamping unit for an injection molding machine and method for locking a force transmission element
    DE102010048532B4|2012-10-04|Device for quick mounting of the tool halves of a mold
    DE2235758C3|1978-04-27|Mold clamping device of a plastic injection molding machine
    DE102011010953B4|2016-03-31|Vertical injection molding machine with mold plates arranged on magnetic clamping plates
    同族专利:
    公开号 | 公开日
    KR20140097038A|2014-08-06|
    US20140212531A1|2014-07-31|
    AT513131B1|2014-02-15|
    CN103963249B|2017-09-22|
    US9452559B2|2016-09-27|
    KR101737674B1|2017-05-18|
    CN103963249A|2014-08-06|
    DE102014000837A1|2014-07-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2926356B2|1990-07-11|1999-07-28|株式会社小松製作所|Overload prevention device for injection press molding machine|
    JP2005028634A|2003-07-08|2005-02-03|Toyo Mach & Metal Co Ltd|Vertical injection molding machine|
    AT12819U1|2011-01-19|2012-12-15|Engel Austria Gmbh|VERTICAL TWO-PLATE CLOSE UNIT|AT520593A1|2017-11-07|2019-05-15|Engel Austria Gmbh|Pull or push rod or locking nut for a molding machine|AT12819B|1902-11-22|1903-08-10|Fernand Hendrickx|
    US2689978A|1950-02-14|1954-09-28|Albert J Roger|Clamping apparatus for injection molding machine molds|
    US3561063A|1968-06-24|1971-02-09|Danly Machine Corp|Vertically oriented injection molding machine|
    FR2355647B1|1976-03-31|1978-10-13|Poncet Pierre|
    US4318682A|1980-09-05|1982-03-09|Ex-Cell-O Corporation|Press locking apparatus|
    US4304540A|1980-09-15|1981-12-08|Hammon Carl K|Hydraulic press|
    US4504208A|1982-07-14|1985-03-12|Kabushiki Kaisha Kobe Seiko Sho|Mold clamping device for injection molding machine|
    US4453902A|1983-08-04|1984-06-12|Mcneil-Akron, Inc.|Tire curing press|
    US4944669A|1989-03-03|1990-07-31|The Dow Chemical Company|High tonnage rim press|
    US5091124A|1989-03-03|1992-02-25|The Dow Chemical Company|High tonnage rim press|
    JP2738094B2|1989-12-22|1998-04-08|宇部興産株式会社|Mold clamping device of molding machine|
    US6722875B2|2002-04-17|2004-04-20|Van Dorn Demag Corporation|Vertical injection molding machine|
    CN202540665U|2012-01-31|2012-11-21|上海积健精密机械有限公司|Double-plate die-locking mechanism|JP6805405B2|2016-12-21|2020-12-23|宇部興産機械株式会社|Split nut switchgear|
    JP6830846B2|2017-03-30|2021-02-17|住友重機械工業株式会社|Injection molding machine|
    HUE051405T2|2017-11-17|2021-03-01|Nemak Sab De Cv|Casting apparatus for producing castings from a metallic melt|
    DE102018117586A1|2018-06-08|2019-12-12|Bbg Gmbh & Co. Kg|Mold carrier system|
    AT521382B1|2018-11-14|2020-01-15|Engel Austria Gmbh|Closing unit for a molding machine|
    CN112477034A|2019-09-12|2021-03-12|日精树脂工业株式会社|Mold clamping device with split nut and injection molding device|
    CN112140464A|2020-08-24|2020-12-29|佛山市宝塑精密机械有限公司|Sliding foot assembly and injection molding machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA55/2013A|AT513131B1|2013-01-28|2013-01-28|Closing unit for an injection molding machine|ATA55/2013A| AT513131B1|2013-01-28|2013-01-28|Closing unit for an injection molding machine|
    DE102014000837.1A| DE102014000837A1|2013-01-28|2014-01-22|Closing unit for an injection molding machine|
    US14/164,437| US9452559B2|2013-01-28|2014-01-27|Closure unit|
    KR1020140010731A| KR101737674B1|2013-01-28|2014-01-28|Closure unit|
    CN201410129579.1A| CN103963249B|2013-01-28|2014-01-28|Closing unit for injection machine|
    [返回顶部]