• 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:
    Protective cover (1) for a plasticizing cylinder (2) of a shaping machine, having an elongated inner space (4) enclosed by at least one wall (3a, 3b, 3c), in which the plasticizing cylinder (2) can be arranged, a terminal box (5) being arranged for heating bands (6) arranged on the plasticizing cylinder (2) projects into the interior space (4) and one of the walls (3a, 3b, 3c) of the protective cover (1) has an opening (8) closed by an openable cover (7) in the open state access to the terminal box (5) or the interior of the terminal box (5) allowed.
    公开号:AT517960A4
    申请号:T50313/2016
    申请日:2016-04-12
    公开日:2017-06-15
    发明作者:Einfalt Richard；Ing Dr Friedrich Johannes Kilian Dipl；Ing Florian Porod Dipl；Dipl Ing Günter (Fh) Schott
    申请人:Engel Austria Gmbh；
    IPC主号:
    专利说明:

    The present invention relates to a protective cover for a plasticizing cylinder of a molding machine having the features of the preamble of claim 1, a plasticizing unit having such a protective cover, and a molding machine having such a plasticizing unit.
    From DE 37 42 403 C1 discloses a protective cover, in which a connector strip covers the front side of a protective cover in the area below the plasticizing.
    Protective covers are known in which a terminal box is externally attached to the protective cover.
    The object of the invention is to provide a protective cover with a more compact design, in which a simple and quick change of the plasticizing unit is possible, and to provide a plasticizing unit with such a protective cover and a forming machine with such a plasticizing unit.
    This object is achieved by a protective cover having the features of claim 1, a plasticizing unit with such a protective cover and a shaping machine with such a plasticizing unit. Advantageous embodiments of the invention are defined in the dependent claims.
    The at least one wall may be formed in various ways (in isolation or any combination), for example: as a single wall in a curved shape, enclosing an interior of at least about 90 ° to about 200 °, as two straight walls in L-shape. Configuration - as three straight walls in U configuration
    In the molding machine, it may, for. B. to act an injection molding machine.
    The invention has a number of advantages: It results in a very compact design. - The terminal box is easily accessible from the outside for servicing. - There are no more free hanging cables on the entire plasticizing unit required, whereby the handling when changing the plasticizing unit is much easier. - The wiring of the heating bands to the terminal box can be made fixed. When replacing the plasticizing unit thus no separation between heating bands and terminal box is necessary. - By combining several heating cable or heating cables on a plug in the terminal box a small number of connectors in the terminal box is achieved. - Due to the integration of the terminal box, only one interface is necessary for different screw diameters and ratios of length / diameter of the plasticizing units. This allows a simple and quick change of a plasticizing unit and the same cable with different plasticizing units can be used, which allows standardization of the cable lengths. - The integration of the terminal box on the plasticizing makes it possible to standardize the interface between a main cabinet of the molding machine and the plasticizing unit.
    It is particularly preferred that the terminal box has a side facing the plasticizing cylinder in the assembled state, which extends in the longitudinal direction of the interior and is of concave design. As a result, the terminal box can cling, so to speak, to the cylindrical contour of the plasticizing cylinder.
    It is according to the invention at least one terminal box per plasticizing available, however, several terminal boxes can be provided. The arrangement is preferably made on a side wall of the protective cover or a lateral portion of the at least one wall, but it is also an arrangement on the top or bottom of the plasticizing possible.
    The ratio between the distance of a side wall of the protective cover from the center axis of the plasticizing cylinder and the outer radius of the plasticizing cylinder is in a range from about 3 to about 1.1 (preferably from about equal to 2.5 to about 1.4), and is preferably less than 1.6.
    It can also be provided to arrange a control and / or power electronics for the heating strips in the interior of the protective cover, preferably in the terminal box. This allows a decentralized control and / or power supply for the control of the heating bands. This decentralization creates more space in the main control cabinet of the forming machine.
    Most preferably, it is provided that the openable lid is designed as a lid of the terminal box, wherein preferably the lid of the terminal box is flush with the wall having the opening, so that the terminal box is arranged completely in the interior except for the lid. In this embodiment, the terminal box fits optimally into the protective cover of the plasticizing unit. Since the terminal box does not protrude out of the protective cover, there are no pinch points between the nozzle guard and clamping loads. As a result, the ejection protection can be made tight fitting, which further improves operator safety.
    It can be provided that the interface connector of the terminal box are arranged so that the plug directions are parallel to the wall of the protective cover, which has the opening.
    Preferably, the interface connector are pluggable.
    Due to the integration of the terminal box on the heated plasticizing cylinder, a thermal decoupling of the terminal box from the heating bands may be required, in particular in the case of the conforming construction. This can be done in different ways (individually or in any combination): - Reduction of heat transfer by radiation by means of: • Attaching of jet protection plates between terminal box and plasticizing cylinder. • Use of blasting protection films on the terminal box. • Use of insulating mats on the terminal box. • Isolation of the plasticizing cylinder - Reduction of heat transfer by conduction through the use of thermal insulation elements in the mechanical connection of the terminal box to the plasticizing cylinder. - Reduction of heat transfer through line by arranging a defined air space between plasticizing and terminal box. - Use of a cooling device: • Active cooling (preferably controlled) of the terminal box by water or air cooling. • Cooling ribs arranged on the terminal box. • Use of the chimney effect resulting from a gap between the plasticizing cylinder and the terminal box (cooling effect due to natural convection).
    It can be provided that the plasticizing unit has a visualization and / or interface for an operator, for. For example: - display of status information on a display (eg defective heating tapes, current temperatures and temperature distributions, current switching status, remaining service life of the installed heating tapes) - integrated user interface on the plasticizing unit (eg possibility of setting the temperature (s) directly on the plasticizing unit) - Integrated interface on the plasticizing unit to an external user interface (eg wireless or wired for a mobile or stationary device)
    It is preferably provided that a cable harness, which connects the terminal box with the heating bands, is arranged above the plasticizing cylinder. If temperature-resistant cables are used, the cable harness can be arranged below the protective cover of the plasticizing cylinder without additional cable protection. The arrangement of the cable harness above the plasticizing brings
    Advantages in terms of accessibility during assembly or when replacing a defective heating tape. Alternatively, the cable harness can also be arranged laterally of the plasticizing cylinder or obliquely above the plasticizing cylinder.
    It is preferably provided that a nozzle heating band and an associated temperature sensor are connected to the terminal box via a plug connection. This can be done a very rapid exchange of the nozzle heating.
    The terminal box can have at least one information interface for connecting (eg plugging in) a sensor or data bus.
    The plug, which is closest to the filling opening of the plasticizing cylinder, ideally has a defined distance A for the same outside diameter of the plasticizing cylinder and a given size of the plasticizing unit. However, the size of the distance A can be chosen freely.
    The plugs are preferably arranged in a protected manner, so that they are not damaged during installation of the plasticizing unit by means of a leveling foot of the plasticizing unit and a plasticizing cylinder support.
    An embodiment of the invention will be discussed with reference to the figures. Show it:
    Fig. 1 is an isometric view of a plasticizing unit according to the invention
    Fig. 2 is a view of the front side of the plasticizing unit
    Fig. 3 is another view of the front side of the plasticizing unit
    Fig. 4 is a side view of the plasticizing unit
    Fig. 5 shows a protective cover according to the invention with the lid open
    Fig. 6 is an isometric view from below of the protective cover
    Fig. 1 shows a section of a plasticizing a molding machine according to the invention, which otherwise corresponds to the prior art. Visible is a protective cover 1 with two lateral walls 3a, 3b and a top wall 3c in U-configuration. Down the protective cover 1 is open. Visible is arranged in the interior 4 of the protective cover 1 plasticizing cylinder 2, on which heating bands 6 are arranged. The protective cover 1 has an opening 8 (see Fig. 5), which is closed in Fig. 1 with a cover 7. The cover 7 is formed in the embodiment shown as a lid of the terminal box 5 and is flush with the wall 3 a of the protective cover 1 at. After removing the screws to be recognized (six here), the contents of the terminal box 5 is accessible from the outside, without further parts of the protective cover 1 would have to be uninstalled. Of course, the revealability of the cover 7 can be designed in any desired manner. The plasticizing cylinder 2 is supported during operation via a plasticizing cylinder support 10 on the ground. After a successful disassembly of the plasticizing unit, it can be supported via the plasticizing cylinder support 10 and a further support 11 (eg has at least two support points) preferably at least in a three-point support.
    Fig. 2 shows that in this embodiment, the terminal box 5 has a plasticizing cylinder 2 facing side 9, which extends in the longitudinal direction of the interior 4 and is concave. The ratio between the distance Y of a side wall 3a, 3b of the protective cover 1 from the center axis of the plasticizing cylinder 2 and the outer radius R of the plasticizing cylinder 2 is in a range of Y / R about equal to 3 to about 1.1 - preferably from (Y / R) is about equal to about 2.5 to about 1.4 - and is preferably less than or equal to 1.6 (see Fig. 3).
    Fig. 4 shows a side view of the plasticizing unit shown in the preceding figures, wherein a distance A is drawn. This is the distance A between the filling opening of the plasticizing cylinder 2 and that plug which is closest to the filling opening of the plasticizing cylinder 2. He has ideally with the same outer diameter of the plasticizing 2 and a given size of the plasticizing a defined distance A. The size of the distance A, however, can be chosen freely.
    Figs. 6a to 6c show views into the empty protective cover 1, d. H. without arranged in the interior plasticizing 2, but with recognizable terminal box. 5
    Reference list: 1 protective cover 2 plasticizing cylinder 3a, 3b, 3c walls of the protective cover 4 interior of the protective cover 5 terminal box 6 heating tape 7 cover of the protective cover 8 opening in the protective cover 9 the plasticizing cylinder side facing the terminal box 10 plasticizing cylinder support 11 further support
    权利要求:
    Claims (17)
    [1]
    claims:
    1. A protective cover (1) for a plasticizing cylinder (2) of a forming machine, with an at least one wall (3a, 3b, 3c) enclosed, elongated interior (4), in which the plasticizing cylinder (2) can be arranged, characterized in that a terminal box (5) for heating bands (6) arranged on the plasticizing cylinder (2) projects into the interior space (4) and one of the walls (3a, 3b, 3c) of the protective cover (1) has an opening (7) closed by an openable lid (7). 8), which in the opened state allows access to the terminal box (5) or the interior of the terminal box (5).
    [2]
    2. Protective cover according to claim 1, wherein the terminal box (5) in the assembled state the plasticizing cylinder (2) facing side (9) which extends in the longitudinal direction of the interior (4) and is concave.
    [3]
    A protective cover according to the preceding claim, wherein the ratio between the distance (Y) of a lateral wall (3a, 3b) of the protective cover (1) or a lateral portion of the at least one wall (3a, 3b, 3c) from the central axis of the plasticizing cylinder (2) and the outer radius (R) of the plasticizing cylinder (2) is in a range of (Y / R) about 3 to about 1.1 - preferably from (Y / R) about equal to 2.5 to about 1.4 and is preferably less than or equal to 1.6.
    [4]
    4. A protective cover according to at least one of the preceding claims, wherein a control and / or power electronics for the heating strips (6) in the interior (4) of the protective cover (1), preferably in the terminal box (5) is arranged.
    [5]
    5. Protective cover according to at least one of the preceding claims, wherein the openable cover (7) is designed as a cover of the terminal box (5).
    [6]
    6. A protective cover according to the preceding claim, wherein the lid of the terminal box (5) flush with the opening (8) having wall (3a, 3b, 3c) connects, so that the terminal box (5) except for the lid completely in the interior (4 ) is arranged.
    [7]
    7. Protective cover according to at least one of the preceding claims, wherein interface plugs of the terminal box (5) are arranged so that the plug-in directions parallel to the wall (3a, 3b, 3c) of the protective cover (1), which has the opening (8).
    [8]
    A protective cover according to at least one of the preceding claims, wherein the opening (8) is arranged on a lateral wall (3a, 3b) or a lateral portion of the at least one wall (3a, 3b, 3c) of the protective cover (1).
    [9]
    9. Protective cover according to at least one of the preceding claims, wherein a cooling device for the terminal box (5) is provided.
    [10]
    10. plasticizing unit for a molding machine, comprising a protective cover (1) according to at least one of the preceding claims and a in the interior (4) of the protective cover (1) plasticizing cylinder (2).
    [11]
    11. plasticizing unit according to the preceding claim, wherein a cable harness which connects the terminal box (5) with the heating bands (6), above the plasticizing cylinder (2) is arranged.
    [12]
    12. plasticizing unit according to at least one of the preceding claims, wherein a nozzle heating band and an associated temperature sensor with the terminal box (5) are connected via a plug connection.
    [13]
    13. plasticizing unit according to at least one of the preceding claims, wherein the terminal box (5) has at least one information interface for connecting a sensor or a data bus.
    [14]
    14. plasticizing unit according to at least one of the preceding claims, wherein the terminal box (5) of the heating bands (6) and the plasticizing cylinder (2) is thermally insulated or decoupled.
    [15]
    15. plasticizing unit according to at least one of the preceding claims, wherein the plasticizing unit has a plasticizing cylinder support (10) and a further support (11).
    [16]
    16. plasticizing unit according to at least one of the preceding claims, wherein the plasticizing unit has a visualization and / or interface for an operator.
    [17]
    17. Forming machine, in particular injection molding machine, with a plasticizing unit according to at least one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    US10661490B2|2020-05-26|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0198410A2|1985-04-15|1986-10-22|Karl Hehl|Injection-moulding machine for plastics|
    US62A|1836-10-20|Cooking-stove |
    US3750134A|1971-02-11|1973-07-31|Package Machinery Co|Plastic injection molding machine monitor|
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    US7393199B2|2000-04-06|2008-07-01|Mgs Mfg. Group, Inc.|Multi-shot injection molding arrangement|
    JP2001315179A|2000-05-10|2001-11-13|Nissei Plastics Ind Co|Inputting device for injection molding machine|
    DE202006012268U1|2006-08-10|2007-03-01|Netstal-Maschinen Ag|Axially displaceable injection unit for injection molding machine, includes plasticization cylinder support in cylinder head region, allowing accurate positioning of cylinder tip|
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    JP5072038B2|2008-10-02|2012-11-14|スターテクノ株式会社|Thermal insulation jacket for injection cylinder in injection molding machine|
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    US20130287885A1|2012-04-27|2013-10-31|Athena Automation Ltd.|Two-platen hybrid injection molding machine|
    JP5770253B2|2013-12-05|2015-08-26|ファナック株式会社|Heating tube protective cover for injection molding machine|JP6882251B2|2018-12-13|2021-06-02|ファナック株式会社|Exhaust unit for injection molding machine|
    JP6882253B2|2018-12-21|2021-06-02|ファナック株式会社|Exhaust unit for injection molding machine|
    CN111844652A|2019-04-30|2020-10-30|安徽科瑞特模塑有限公司|Demoulding device for injection mould|
    KR102164648B1|2020-07-21|2020-10-12|흥가하이드로릭스코리아|Hydraulic cylinder motion detection device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50313/2016A|AT517960B1|2016-04-12|2016-04-12|Protective cover for a plasticizing cylinder|ATA50313/2016A| AT517960B1|2016-04-12|2016-04-12|Protective cover for a plasticizing cylinder|
    KR1020170046962A| KR101969639B1|2016-04-12|2017-04-11|Protective cover for a plasticising cylinder|
    US15/484,435| US10661490B2|2016-04-12|2017-04-11|Protective cover for a plasticizing cylinder|
    DE102017003595.4A| DE102017003595A1|2016-04-12|2017-04-12|Protective cover for a plasticizing cylinder|
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