• 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:
    Closing unit of a forming machine with a movable platen (2), a pressure bar (3) connected to the movable platen (2) with an outer profile (7), a split, with an inner profile (5) provided locking nut (6) and a closing force mechanism for acting the movable platen with a closing force, wherein the push rod (3) in a closed position of the locking nut (6) by interaction of the inner profile (5) and the outer profile (7) with the closing force mechanism is lockable, wherein for moving the locking nut (6) between an open and closed position a rotary drive (9) for rotating a shaft (1 0) and at least one via a toothing (8) with the shaft (1 0) cooperating and with the locking nut (6) connected rack (11) is provided ,
    公开号:AT516849A4
    申请号:T353/2015
    申请日:2015-06-08
    公开日:2016-09-15
    发明作者:Franz Ing Dirneder；Stephan Eppich；Helmut Wiesinger
    申请人:Engel Austria Gmbh；
    IPC主号:
    专利说明:

    The present invention relates to a closing unit of a shaping machine having the features of the preamble of claim 1.
    Generic locking units have a movable platen, a plate with the movable chuck connected push rod with an outer profile, a split, provided with an inner profile locking nut and a closing force mechanism for acting on the movable platen with a closing force.
    The push rod is locked in the closed position of the locking nut by cooperation of the inner profile and the outer profile with the closing force mechanism.
    A generic closing unit is for example from the AT 13625 U1. In this case, the nut halves are moved by means attached to a driven shaft eccentric. It is worthy of improvement that the shaft and subsequently the drive must be aligned parallel to the longitudinal axis of the push rod in order to avoid the asymmetrical introduction of force (creates danger of jamming) in the split nut. The overall length of the clamping unit is thereby increased. If you try to align the drive by means of a deflection transversely, inevitably increases the number of moving parts and the unavoidable gear play reduces the accuracy of the control or regulation of the movement of the nut halves.
    Not generic are locking units with four bars. Here, the spars are not locked relative to the closing force mechanism, but relative to the movable platen. Due to the higher number of spars and the fact that the latches are arranged in this case at the end of the closing unit, there are completely different space conditions.
    The object of the invention is to provide a shorter compared to the prior art closing unit.
    This object is achieved by a clamping unit having the features of the preamble of claim 1.
    This is done by a rotary drive for rotating a shaft and at least one cooperating via a toothing with the shaft and connected to the locking nut rack is provided for moving the locking nut between an open and the closed position.
    By using racks, it is particularly easy to freely choose the orientation of the shaft or the rotary drive. As a result, the closing unit can be made shorter.
    Another advantage is the low number of moving parts and as a result longer maintenance intervals for the clamping unit.
    Further advantageous embodiments of the invention are defined in the dependent claims.
    The toothing can be carried out in a particularly simple manner by providing a toothed wheel fastened to the shaft, which is coupled in a motion-coupled manner via the toothing to the at least one toothed rack.
    Also, a simple construction, it may be beneficial to provide exactly two cooperating with the shaft and connected to the locking nut racks. In this case, each side of the gear can be used particularly advantageously, wherein a counter-rotating movement is generated in a natural way. This opposite movement is necessary to open the locking nut, since nut halves must be moved in opposite directions for opening and closing.
    It can then be connected to each rack with a nut half, which, as mentioned, represents a particularly simple construction.
    Preferably, it may be provided that the rotary drive as an electric drive - in particular as a servomotor - is formed. Electric drives, especially servomotors, are very precise to control or control and are therefore well suited to drive the nut halves.
    Furthermore, the simplicity of the construction can serve that a bypass element for bypassing the push rod is provided for connecting the at least one rack with the locking nut. It may be particularly preferred that the bypass element is designed as connected to the at least one rack bridge and two connected to the bridge and the locking nut rods.
    The bypass element, in particular the rods, can serve as a guide for those halves of the locking nut, with which the bypass element (in particular the rods) is not connected. A guide of the nut halves can be achieved in this way with very little design effort.
    The effect of the invention to reduce the overall length of the closing unit can be optimized by arranging the shaft in a plane which is substantially perpendicular to an axis of the push rod and / or the shaft is arranged substantially horizontally.
    The at least one rack may be arranged substantially vertically.
    In order to counteract the wear or the deterioration of the gear coupling between the shaft and the at least one rack, a housing may be provided, in which the toothing is arranged. This may be particularly effective when the housing is at least partially filled with a lubricant and has at least one seal against loss of the lubricant.
    The closing unit may preferably be designed hydraulically.
    The closing unit may preferably have exactly one push rod.
    Protection is also desired for a molding machine with a clamping unit according to the invention.
    Further advantages and details of the invention will become apparent from the figures and the associated description of the figures. Showing:
    1 is a shared nut according to the invention with rack drive in the closed position,
    2 is a split nut according to the invention with rack drive in the open position,
    3 shows a second embodiment of a split nut according to the invention with rack drive in the closed position,
    Fig. 4 shows a second embodiment of a split nut according to the invention with rack drive in the open position and Fig. 5 is a sectional view of a clamping unit according to the invention.
    Figure 1 shows a split nut 6, the halves 13 are each connected to a rack 11. The racks 11 are driven by a toothing 8 with the gear 12 through the shaft 10. The shaft 10 is rotated by the servo motor 9. It should be noted that the lower half of the picture 13 of the locking nut 6 is connected via a bypass element 14 with the corresponding rack 11. This bypass element 14 essentially consists of a bridge 15 and two rods 16. The rods 16 are partially guided by the upper half 13 of the locking nut 6 in the image. This produces an additional guidance of the upper half 13 of the locking nut 6. The gear 12, which interacts with the toothed racks 11 via the toothing 8, is arranged in a housing 17. The housing 17 is fastened to a collar 19. The collar 19 is connected to or attached to the piston part 23 of a closing force cylinder (see also FIG. 5).
    With this collar 19, a guide 18 is further connected, which cooperates with grooves on the nut halves 13.
    Figure 2 shows the embodiment of Figure 1, wherein the split locking nut 6 is opened.
    Figures 3 and 4 show a further embodiment of the invention (representations analogous to Figures 1 and 2). In this case, the serrations do not extend over the entire length of the racks 11. This allows a dense design of the housing 17, whereby the toothing 8 can run in oil.
    The housing 17 is thus filled with lubricant - in this case oil - and sealed by means of the seals 24 against loss of the lubricant. The fact that the racks 11 run in oil, the wear is reduced and soiling has no access.
    5 shows the split nut 6 according to the invention in a hydraulic closing unit 1 in this case.
    The collar 19 is connected to or attached to the piston part 23 of the closing force cylinder. By applying a chamber 21 with a hydraulic fluid (usually oil), a closing force on the piston part 23 of the closing force cylinder is acted upon. In this case, a cylinder part 22 of the closing force cylinder is fixedly connected to a machine frame 4 (or an end plate). If the split nut 6 is locked, the closing force can be transmitted from the piston part 23 of the closing force cylinder to the two halves 13 of the locking nut 6 and further via the inner profile 5 to the outer profile 7 of a push rod 3. The push rod 3 is connected to the movable platen 2. In this way, the closing force can be transmitted to a mold, one half of which is attached to the movable platen 2.
    Innsbruck, 3 June 2015
    权利要求:
    Claims (14)
    [1]
    claims
    1. Closing unit of a shaping machine with - a movable clamping plate (2), - one with the movable platen (2) connected push rod (3) with an outer profile (7), - a split, with an inner profile (5) provided locking nut (6) and - a closing force mechanism for acting on the movable platen with a closing force, wherein the push rod (3) in a closed position of the locking nut (6) by interaction of the inner profile (5) and the outer profile (7) with the closing force mechanism is locked, characterized in that for the movement of the locking nut (6) between an open and the closed position a rotary drive (9) for rotating a shaft (10) and at least one cooperating with the shaft (10) via a toothing (8) and with the locking nut (6) connected rack (11) is provided.
    [2]
    2. Closing unit according to claim 1, characterized in that on the shaft (10) fixed gear (12) is provided, which is coupled in motion via the toothing with the at least one rack (11).
    [3]
    3. Closing unit according to claim 1 or 2, characterized in that exactly two with the shaft (10) cooperating and with the locking nut (6) connected racks (11) are provided.
    [4]
    4. Closing unit according to one of claims 1 to 3, characterized in that the split locking nut (6) has two halves (13), wherein each half (13) is preferably connected to a rack (11).
    [5]
    5. Closing unit according to one of claims 1 to 4, characterized in that the rotary drive (9) as an electric drive - in particular as a servomotor - is formed.
    [6]
    6. Closing unit according to one of claims 1 to 5, characterized in that for connecting the at least one rack (11) with the locking nut (6), a bypass element (14) for bypassing the push rod (3) is provided.
    [7]
    7. Closing unit according to claim 6, characterized in that the bypass element (14) as connected to the at least one rack (11) connected bridge (15) and two with the bridge (15) and the locking nut (6) connected rods (16) is.
    [8]
    8. Closing unit according to claim 4 and according to claim 6 or 7, characterized in that the bypass element (14) - in particular the rods (16) - as a guide for that half (13) of the locking nut (6), with which the bypass element ( 14) - in particular the rods (16) - is not connected.
    [9]
    9. Closing unit according to one of claims 1 to 8, characterized in that the shaft (10) is arranged in a plane which is arranged substantially perpendicular to an axis of the push rod (3).
    [10]
    10. Closing unit according to one of claims 1 to 9, characterized in that the shaft (10) is arranged substantially horizontally.
    [11]
    11. Closing unit according to one of claims 1 to 10, characterized in that the at least one rack (11) is arranged substantially vertically.
    [12]
    12. Closing unit according to one of claims 1 to 11, characterized in that a housing (17) is provided, in which the toothing (8) is arranged.
    [13]
    13. Closing unit according to claim 12, characterized in that the housing (17) is at least partially filled with a lubricant and has at least one seal (24) against loss of the lubricant.
    [14]
    14. Forming machine with a clamping unit according to one of claims 1 to 13. Innsbruck, on 3 June 2015
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    同族专利:
    公开号 | 公开日
    DE102016006956A1|2016-12-08|
    CN106239781A|2016-12-21|
    US20160354952A1|2016-12-08|
    KR20160144326A|2016-12-16|
    CN106239781B|2018-06-26|
    US9914253B2|2018-03-13|
    KR101828680B1|2018-02-13|
    AT516849B1|2016-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2000185345A|1998-12-24|2000-07-04|Japan Steel Works Ltd:The|Tie bar locking device for composite straight-hydraulic mold clamping apparatus|
    AT13625U1|2012-09-03|2014-05-15|Engel Austria Gmbh|Closing unit for an injection molding machine|DE102016007981A1|2015-07-03|2017-01-05|Engel Austria Gmbh|closing unit|
    CN110239044A|2019-06-25|2019-09-17|易伟青|A kind of injection mold clamping structure|US6805827B2|1999-12-28|2004-10-19|Ube Machinery Corporation, Ltd.|Mold clamping device, method of increasing/decreasing pressure for such device, and mold releasing method|
    JP3881850B2|2001-03-09|2007-02-14|三菱重工プラスチックテクノロジー株式会社|Electric split nut opening and closing device in mold clamping device|
    KR100664877B1|2006-03-14|2007-01-04|주식회사 우진세렉스|Half nut locking position controlling apparatus of injection molding device|
    KR100901320B1|2007-11-08|2009-06-09|김태용|Horizontal and vertical injection molding machine|
    KR101509911B1|2012-09-03|2015-04-07|엥글 오스트리아 게엠베하|Closing unit of an injection molding machine|
    KR101448402B1|2013-09-13|2014-10-08|엘에스엠트론 주식회사|Injection molding machine and molding methods using it|JP6805405B2|2016-12-21|2020-12-23|宇部興産機械株式会社|Split nut switchgear|
    HUE051405T2|2017-11-17|2021-03-01|Nemak Sab De Cv|Casting apparatus for producing castings from a metallic melt|
    DE102017223822A1|2017-12-27|2019-06-27|Arburg Gmbh + Co. Kg|Mold-closing unit for an injection molding machine and method for locking a power transmission element|
    CN108327189A|2018-04-26|2018-07-27|杨传平|A kind of plastic product injection mold improving cooling efficiency|
    CN109291479A|2018-11-16|2019-02-01|华澳轮胎设备科技（苏州）股份有限公司|A kind of rod-pulling type vulcanizer|
    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|
    CN111331787A|2020-03-02|2020-06-26|罗永莉|Plastic injection mold and injection molding method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA353/2015A|AT516849B1|2015-06-08|2015-06-08|Closing unit of a molding machine|ATA353/2015A| AT516849B1|2015-06-08|2015-06-08|Closing unit of a molding machine|
    US15/175,424| US9914253B2|2015-06-08|2016-06-07|Closing unit of a shaping machine|
    KR1020160070322A| KR101828680B1|2015-06-08|2016-06-07|Closing unit of a shaping machine|
    CN201610662876.1A| CN106239781B|2015-06-08|2016-06-08|The closing unit of molding machine|
    DE102016006956.2A| DE102016006956A1|2015-06-08|2016-06-08|Closing unit of a molding machine|
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