公开(公告)号：EP1490205A4

公开(公告)日：2008-05-14

申请号：EP02719391

申请日：2002-03-29

申请人： DME CO

发明人： EIGLER FRANK J ,  STEIL FREDERICK G

IPC分类号： B29C45/28 ,  B29C45/23 ,  B29C45/27

CPC分类号： B29C45/2806 ,  B29C45/278 ,  B29C2045/2889

摘要： A molding nozzle (10) controls the flow of material from a source of plastic melt to an outlet that communicates with a gate (30) to a mold cavity (12). The nozzle (10) contains a valve pin (38) that includes a guide section (40) and a valve end (42), and is movable toward and away from the gate (30) to open and close the gate (30) selectively. The valve pin (38) is guided for movement by guide surfaces (64) on inwardly-extending vanes (62) within the nozzle (10), such that the guide surfaces (64) engage the guide section (40) of the valve pin (38). The valve end (42) of the valve pin (38) has a smaller diameter than that of the guide section (40), so that the valve section (42) is free-floating to allow annular flow in the guide surface region to minimize the likelihood of formation of flow lines in the molded part.

公开(公告)号：EP1301326A4

公开(公告)日：2005-01-05

申请号：EP01948346

申请日：2001-06-13

申请人： DME CO

发明人： STEIL FREDERICK G ,  NOVO RUI ,  EIGLER FRANK J

IPC分类号： B29C45/27 ,  B29C45/17 ,  B29C45/72

CPC分类号： B29C45/2725 ,  B29C2045/277

摘要： A thermal expansion compensation support (40) and method are used in a hot runner injection mold for maintaining liquid-tight relationships between parts that define a flow passageway. The support includes an annular housing (56) having an recess (64) that receives a spring (68), such as a Belleville washer, and a cover (70) that overlies the recess (64) in the housing (56). The housing (56) and the cover (70) are spring biased from each other to maintain a pressure force on the surfaces that are in contact with the outer faces of the cover (70) and housing (56). The support (40) imparts a holding force on the parts of the machine that define the molding material flow passageway to prevent leakage. The method involves holding the parts together at a first holding force level for an initial portion of a warm-up temperature range and holding the parts together at a second holding force level for the remainder of the temperature range.

摘要翻译： 在热流道注塑模具中使用热膨胀补偿支撑和方法，用于维持限定流动通道的部件之间的液密关系。 支撑件包括环形壳体，该环形壳体具有容纳弹簧的环形凹部，例如贝氏垫圈，以及覆盖壳体中的环形凹部的盖。 壳体和盖子彼此弹簧偏压，以保持与每个盖子和环形壳体的外表面接触的表面上的压力。 支撑件在机器的几个部分上施加保持力，其限定模制材料流动通道以防止泄漏。 该方法包括将第一保持力水平的部件保持在预热温度范围的初始部分，并在第二保持力水平下将部​​件保持在温度范围的其余部分。

公开(公告)号：EP1301327A4

公开(公告)日：2003-05-21

申请号：EP01946447

申请日：2001-06-15

申请人： DME CO

发明人： EIGLER FRANK J ,  NOVO RUI

IPC分类号： B29C45/20 ,  B29C45/27

CPC分类号： B29C45/278 ,  B29C45/27 ,  B29C2045/2761

摘要： A flow nozzle (10) that conveys plastic melt from an injection unit of a molding machine to a mold cavity (72) has an improved, removable seal design. The nozzle body (12) is designed to threadedly receive a nozzle tip (24) that includes an outlet (30) that communicates with the mold cavity. A thin-wall, cylindrical seal ring (40) includes a compression portion that is received between the nozzle body and nozzle tip and is compressed to create a seal between these two elements when the tip is assembled to the nozzle body. The seal ring further includes a sealing portion (50) that encircles the nozzle tip and has an outer diameter slightly larger than the outer diameter of the nozzle body.

摘要翻译： 将塑料熔体从成型机的注射单元输送到模腔（72）的流动喷嘴（10）具有改进的可移除的密封设计。 喷嘴体（12）被设计成螺纹接收喷嘴尖端（24），喷嘴尖端（24）包括与模腔连通的出口（30）。 薄壁的圆柱形密封环（40）包括压缩部分，该压缩部分容纳在喷嘴主体和喷嘴尖端之间，并且当尖端装配到喷嘴主体时被压缩以在这两个元件之间形成密封。 密封环还包括围绕喷嘴尖端的密封部分（50），其外径稍大于喷嘴体的外径。

公开(公告)号：EP1292436A4

公开(公告)日：2005-01-12

申请号：EP01946370

申请日：2001-06-15

申请人： DME CO

发明人： STEIL FREDERICK G ,  ADAS JAMES O ,  EIGLER FRANK J

IPC分类号： B29C45/26 ,  B29C33/30 ,  B29C45/17

CPC分类号： B29C45/2602 ,  B29C45/17 ,  B29C45/2673 ,  B29C2045/2793 ,  Y10T29/49815

摘要： A latching device (20) for a mold assembly (10) uses a cam action to hold the 'A' side plate against the hot runner system/nozzle plate (18) during operation. Preferably, a latch (20) is provided on each side of the mold to effectively hold the 'A' side plate against the nozzle plate (18) during the high pressure injection of plastic melt. For purposes of a mold insert change, each latch (20) is rotated to release the 'A' side plate from the nozzle plate (18), and hold the 'A' side plate against the 'B' side plate. This enables the 'A' (12) and 'B' (14) portions of the mold assembly to be moved away from the nozzle plate (18), thereby avoiding interference of the hot runner nozzles and 'A' side insert and enabling quick mold insert change.

摘要翻译： 用于模具组件（10）的锁定装置（20）使用凸轮动作来在操作期间将“A”侧板保持在热流道系统/喷嘴板（18）上。 优选地，在模具的每一侧设置有闩锁（20），以在高压注塑塑料熔体期间有效地将“A”侧板保持在喷嘴板（18）上。 为了模具插入件更换的目的，每个闩锁（20）旋转以从喷嘴板（18）释放“A”侧板，并且将“A”侧板保持抵靠“B”侧板。 这使得模具组件的“A”（12）和“B”（14）部分能够远离喷嘴板（18）移动，从而避免了热流道喷嘴和“A”侧插件的干扰，并使得能够快速 模插件更换。