公开(公告)号：US09776349B2

公开(公告)日：2017-10-03

申请号：US14762515

申请日：2014-01-28

Applicant: Husky Injection Molding Systems Ltd.

Inventor： James Osborne Plumpton ,  Sarah Kathleen Overfield ,  Abdeslam Bouti

IPC: B29C45/76 ,  B29C45/23 ,  B29C45/28 ,  B29C45/22 ,  B29C45/77 ,  B29K23/00

CPC classification number: B29C45/231 ,  B29C45/22 ,  B29C45/2806 ,  B29C45/76 ,  B29C45/77 ,  B29C2945/76598 ,  B29C2945/76755 ,  B29C2945/76862 ,  B29C2945/76943 ,  B29K2023/12

Abstract: Systems and methods for controlling the closing speed of valve gated nozzles are disclosed. In one embodiment, a hot runner have a valve gated nozzle including a valve stem movable between an open position and a closed position is provided. The valve stem is moved at a first speed for a first portion of valve stem closure and a second speed for a second end portion of the valve stem closure.

公开(公告)号：US11254039B2

公开(公告)日：2022-02-22

申请号：US16340398

申请日：2017-10-09

Applicant: HUSKY INJECTION MOLDING SYSTEMS, LTD.

Inventor： Sarah Kathleen Overfield ,  Edward Joseph Jenko ,  Brian Esser ,  David Albert Hurley

IPC: B29C45/27 ,  B29C45/78

Abstract: An injection molding machine includes an edge gate nozzle with a nozzle body having a primary melt channel and a nozzle head having first and second secondary melt channels that feed melt to first and second nozzle tips. First and second heaters are disposed in the nozzle head to provide heat to the secondary melt channels. In some embodiments, the heaters are positioned adjacent to the secondary melt channels, with first heater is closer to the first secondary melt channel than to the second secondary melt channel. In some embodiments, the heaters are positioned adjacent to the nozzle tips, with the first heater closer to the first nozzle tip than to the second nozzle tip. In some embodiments, each heater is adjacent to both the respective nozzle tip and secondary melt channel. In some embodiments, each heater is individually controllable.

公开(公告)号：US20140127348A1

公开(公告)日：2014-05-08

申请号：US14127556

申请日：2012-06-12

Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.

Inventor： Martin Baumann ,  John Knapp ,  Sarah Kathleen Overfield

IPC: B29C45/07

CPC classification number: B29C45/07 ,  B29C45/278 ,  B29C2045/2796

Abstract: The inventors have researched a problem associated with known molding systems that inadvertently manufacture bad-quality molded articles or parts. After much study, the inventors believe they have arrived at an understanding of the problem and its solution, which are stated below, and the inventors believe this understanding is not known to the public. During operation, the gate orifice and nozzle tip position are fixed. The inventors believe that there appears to be no known mechanism that allows optimization of the tip to gate relationship. Known methods of adjusting position of a nozzle tip, such as shimming between a cavity plate and a manifold plate, or replacing nozzle stack components, may be time consuming and difficult. The known hot runner assembly often must be removed from the molding machine to make the desired adjustments.

Abstract translation: 本发明人研究了与已知的模制系统相关的问题，该问题不经意地制造不良品质的模制品或部件。 经过深入研究，发明人相信他们已经了解了以下所述的问题及其解决方案，发明人认为，这种理解是公众不了解的。 在操作期间，闸口和喷嘴尖端位置是固定的。 发明人认为，似乎没有允许使尖端与栅极关系最优化的已知机制。 已知的调节喷嘴尖端的位置的方法，例如在腔板和歧管板之间的垫片，或者替换喷嘴堆叠部件，可能是耗时且困难的。 已知的热流道组件通常必须从成型机上移除以进行所需的调整。

公开(公告)号：US10160148B2

公开(公告)日：2018-12-25

申请号：US15120528

申请日：2015-03-03

Applicant: Husky Injection Molding Systems Ltd.

Inventor： Sarah Kathleen Overfield

IPC: B29C45/27 ,  B29C45/28 ,  B29C45/17

Abstract: A nozzle retention arrangement is provided for an injection molding manifold system, such as a hot runner manifold system. The nozzle retention arrangement couples an injection nozzle to a distribution manifold in a manner that locates the nozzle in its final operating position and applies an initial assembly load to retain the nozzle in position on the manifold to facilitate installation of a manifold system into a manifold plate. The nozzle retention arrangement may provide a compliant load application feature to limit sealing surface pressure between the nozzle and the manifold to prevent surface damage between the components, while also accommodating thermal expansion of the heated components during operation of the system. The nozzle retention arrangement may also provide a load control feature to prevent the machining quality of the nozzle bore in the manifold plate from determining the sealing load between the nozzle and the manifold.