公开(公告)号：US5334006A

公开(公告)日：1994-08-02

申请号：US993654

申请日：1992-12-21

申请人： Douglas C. Hepler ,  David L. Pursel

发明人： Douglas C. Hepler ,  David L. Pursel

IPC分类号： B29C45/27 ,  B29C45/20

CPC分类号： B29C45/27 ,  B29C45/2701 ,  B29C2045/2717

摘要： A highly reliable hot sprue bushing with an interchangeable tip having multiple edge gates for use in controlling the temperature of plasticized material while it flows from the injection nozzle to the gates of a multiple cavity mold. Advantageously, the hot sprue bushing is adjustable in length so that it can be used with a full range of standard or custom mold plate thicknesses or other required lengths and the interchangeable tip does not require separate heating and temperature control.

摘要翻译： 一种高可靠性的热浇注套管，其具有可互换的尖端，其具有多个边缘浇口，用于在从注射喷嘴流到多腔模具的浇口时控制塑化材料的温度。 有利地，热浇口衬套的长度可调节，使得其可以用于全范围的标准或定制模板厚度或其他所需长度，并且可互换的尖端不需要单独的加热和温度控制。

公开(公告)号：US5269676A

公开(公告)日：1993-12-14

申请号：US933817

申请日：1992-08-24

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/20 ,  B29C45/17 ,  B29C45/26 ,  B29C45/27 ,  B29C45/72

CPC分类号： B29C45/27 ,  B29C2045/2761 ,  B29C2045/277

摘要： A seating and sealing insert for mounting a heated injection molding nozzle in a well in a mold. The hollow insert has a cylindrical central portion extending between a rear seating portion and a forward sealing portion. The rear seating portion is outwardly flanged to seat in the well in the mold and forms an inner seat to receive a cylindrical support flange of the nozzle to accurately support the nozzle in the well in the mold. The forward sealing portion has a V - shaped forward face and inner and outer surfaces which are forced outwardly by melt pressure to seal against the nozzle and the mold. Thus, the seating and sealing insert provides an insulative air space between the heated nozzle and the surrounding mold and the forward sealing portion prevents the escape of pressurized melt into the insulative air space.

公开(公告)号：US5141155A

公开(公告)日：1992-08-25

申请号：US681546

申请日：1991-05-03

申请人： Per E. Jacobsen

发明人： Per E. Jacobsen

IPC分类号： B29C45/27

CPC分类号： B29C45/27 ,  B29C2045/274

摘要： The nozzle comprises a wear pipe (k) arranged in a supporting pipe (c) and comprising a nozzle tip (1) which by an external thread is screwed into an insert (e) at the outlet end of the nozzle housing (b). At the inlet end thereof, the wear pipe (k) carries a counter nut (m). The position of the nozzle tip (1) in the injection hole of a mould is adjusted by the nozzle tip being rotated in the thread of the insert (e), and after a fine adjustment the counter nut (m) is tightened against the back of the nozzle housing (a).

摘要翻译： PCT No.PCT / DK89 / 00261 Sec。 371日期1991年5月3日 102（e）日期1991年5月3日PCT提交1989年11月6日PCT公布。 出版物WO90 / 05056 日期1990年5月17日。喷嘴包括布置在支撑管（c）中的耐磨管（k），并且包括喷嘴尖端（1），其通过外螺纹被拧入插入件（e）的出口端 喷嘴外壳（b）。 在其入口端，耐磨管（k）承载反螺母（m）。 喷嘴尖端（1）在模具的注射孔中的位置是通过喷嘴头在插入件（e）的螺纹中旋转来调节的，并且在微调之后，反螺母（m）紧靠背 的喷嘴壳体（a）。

公开(公告)号：US4950154A

公开(公告)日：1990-08-21

申请号：US374927

申请日：1989-07-03

申请人： Clifford A. Moberg

发明人： Clifford A. Moberg

IPC分类号： B29C45/17 ,  B29C45/26 ,  B29C45/27

CPC分类号： B29C45/26 ,  B29C45/27 ,  B29C45/1781

摘要： A quick set sprue bushing for use in combination with injection molding apparatus. The bushing is made from a beryllium-free alloy that will rapidly dissipate heat. The alloy is of the copper, nickel type and reduces the cure time by between 15% and 20%. The significance of being beryllium-free is that it has been established that beryllium is a carcinogen and endangers workers. A bushing of this type results in the sprue or tail of the molten plastic type cooling as rapidly as possible for removal of the molded product from the mold. The bushing is elongated and has a generally conical passageway along its longitudinal centerline axis that diverges in the direction of the flow of material therethrough, and is further provided with a stainless steel bushing insert at the end that receives the injection mold apparatus nozzle such that the bushing will not conduct heat from the injection apparatus to the mold but will dissipate heat from the mold that comes from the molten material.

摘要翻译： 与注射成型设备结合使用的快速浇注套管。 衬套由无铍合金制成，将快速散热。 该合金为铜，镍型，固化时间缩短了15％〜20％。 无铍的意义在于确定铍是一种致癌物质，危害工人。 这种类型的衬套导致熔融塑料型冷却的直浇道或尾部尽可能快地从模具中移出模制产品。 衬套是细长的，并且具有沿其纵向中心线轴线的大致圆锥形的通道，其沿着材料流动的方向分叉，并且在端部处还设置有不锈钢衬套插入件，其接收注射模具装置喷嘴，使得 衬套不会将热量从注射装置传导到模具，而是会从熔融材料的模具中散发热量。

公开(公告)号：US4891001A

公开(公告)日：1990-01-02

申请号：US306159

申请日：1989-02-06

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/14 ,  B29C45/27 ,  B29C45/32

CPC分类号： B29C45/27 ,  B29C45/322

摘要： A stack injection molding system for conveying melt from an upstream heated nozzle seated in a fixed mold platen to an aligned downstream heated nozzle in a movable mold platen. The upstream dowstream nozzles each have a nose portion with a forward face which abuts against each other in the parting line in the closed position. The melt passage extends through aligned central melt bores in the nozzles which taper inwardly adjacent the forward faces to form a sprue gate where they join. While both nozzles have an integral electrical heating element, only the heating element of the upstream nozzle has a circular forward portion which is brazed in the nose portion to encircle the melt bore and provide more heat and better control adjacent the sprue gate. Before the mold is opened along the parting line for ejection during the injection cycle, power to the heating elements of the nozzles is turned off to avoid drooling of melt from the open sprue gate.

公开(公告)号：US4836766A

公开(公告)日：1989-06-06

申请号：US187445

申请日：1988-04-28

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/26 ,  B29C45/27 ,  B29C45/28 ,  B29C45/73

CPC分类号： B29C45/27 ,  B29C45/2806 ,  B29C2045/274

摘要： This invention relates to an injection molding system having an axially aligned forward and rearward heated nozzle mounted in tandem. The rearward nozzle is seated in a fixed position, while the forward nozzle reciprocates between a retracted open position and a forward closed position to provide valve gating. The forward nozzle has a rearwardly extending sleeve portion which projects into the rearward nozzle to connect the melt bores of the nozzles as the forward nozzle reciprocates. The forward nozzle has a heated nose portion with a tip which seats in the gate in the closed position. A pneumatically actuated piston bears against the rear end of the forward nozzle to drive it to the closed position. Injection melt pressure around the nose portion drives the forward nozzle back to the open position.

公开(公告)号：US4820147A

公开(公告)日：1989-04-11

申请号：US186551

申请日：1988-04-27

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/26 ,  B29C45/27 ,  B29C45/30 ,  B29C45/72 ,  B29C45/73 ,  B29C45/20

CPC分类号： B29C45/27 ,  B29C45/30 ,  B29C2045/274

摘要： This invention relates to a hot tip gated multicavity injection molding system wherein an elongated heated probe extends centrally in a straight portion of the melt passage leading to each gate in a position wherein a tip end of the probe is centrally aligned adjacent the gate. One part of the straight portion of the melt passage is formed by a locating sleeve which is seated in the cavity plate and has spaced pins which extend inwardly to contact the outer surface of the probe to accurately locate the probe with the tip end in central alignment with the gate. Each probe has a central heating element with a double thickness portion extending to provide additional heat where the pins contact the probe. One of the pins is hollow to receive a thermocouple to measure the temperature of the melt flowing past the pins. Another part of the straight portions of the melt passage is formed by a cylindrical spacer collar which extends between the manifold and each locating sleeve to provide an insulating space of a curtain width between the manifold and the cavity plate.

公开(公告)号：US4787840A

公开(公告)日：1988-11-29

申请号：US145969

申请日：1988-01-20

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/26 ,  B23Q1/48 ,  B29C45/27 ,  B29C45/28 ,  B29C45/73 ,  B29C45/20

CPC分类号： B29C45/27 ,  B23Q1/4828 ,  B29C45/28 ,  B29C2045/2759 ,  B29C2045/2761 ,  B29C2045/2796

摘要： The invention relates to a single nozzle injection molding system in which the nozzle is reciprocated longitudinally to valve gate the flow of melt to the cavity. The nozzle has a pointed tip which seats in the gate in the forward closed position and is retracted to the open position. The nozzle is secured against rotation, and an inner collar is secured to it. This inner collar threadably engages a surrounding outer collar which is free to rotate, but secured longitudinally. A pneumatic piston is connected to the outer collar to rotate it through a predetermined angle. Thus, when the outer collar is rotated in one direction, the inner collar and nozzle are driven to the forward closed position, and when the outer collar is rotated in the opposite direction the inner collar and nozzle are retracted to the open position.

公开(公告)号：US4702689A

公开(公告)日：1987-10-27

申请号：US941828

申请日：1986-12-15

申请人： Harald H. Schmidt ,  Rory McDowall

发明人： Harald H. Schmidt ,  Rory McDowall

IPC分类号： B29C45/20 ,  B29C45/27 ,  B29C45/28 ,  B29C45/22

CPC分类号： B29C45/2806 ,  B29C45/27 ,  B29C2045/2717

摘要： This invention relates to a valve gated injection molding system in which melt flows through an elongated manifold to a number of spaced nozzles to fill a single non-linear cavity. Each nozzle is mounted against a manifold offset block which is bolted to the side of the manifold. Pressurized melt from the manifold flows through a melt duct in each manifold block and through the central bore of the respective nozzle to a gate into the cavity. Actuating mechanism is mounted to reciprocate a valve pin extending through each manifold block and nozzle. Each manifold offset block can be mounted with a different orientation on the side of the manifold to properly space the gates along the non-linear cavity to ensure it completely fills as quickly as possible. Slight lateral movement of each manifold block relative to the manifold is permitted to avoid melt leakage due to misalignment of the nozzles as a result of thermal expansion of the manifold.

摘要翻译： 本发明涉及一种阀门浇注注塑系统，其中熔体通过细长歧管流动到多个间隔开的喷嘴以填充单个非线性腔。 每个喷嘴安装在歧管偏移块上，歧管偏移块螺栓固定在歧管的侧面。 来自歧管的加压熔体流过每个歧管块中的熔体管道并且穿过相应喷嘴的中心孔进入腔室。 驱动机构安装成使延伸穿过每个歧管块和喷嘴的阀销往复运动。 每个歧管偏移块可以在歧管侧面上具有不同的取向安装，以沿着非线性腔适当地定位门，以确保其尽可能快地完全填充。 允许每个歧管块相对于歧管的轻微横向运动，以避免由于歧管的热膨胀而导致的喷嘴不对准导致的熔体泄漏。

公开(公告)号：US4023770A

公开(公告)日：1977-05-17

申请号：US717917

申请日：1976-08-26

申请人： Anthony Z. Sedziak

发明人： Anthony Z. Sedziak

IPC分类号： B29C45/27 ,  B29C45/32 ,  B22C9/20

CPC分类号： B29C45/27 ,  B29C45/322

摘要： A transfer structure for a stacked injection molding die comprising:Two transfer tubes connected to a stack molding die and connected together by a knuckle joint so that molten plastic can flow from the runner in one of the parts of the stack molding die through the transfer tubes to the other dies, yet allow the die members to move freely toward and away from each other.

摘要翻译： 一种用于层叠注塑模具的转移结构，包括：