公开(公告)号：US5372496A

公开(公告)日：1994-12-13

申请号：US19219

申请日：1993-02-18

申请人： Yoshihiko Taniyama

发明人： Yoshihiko Taniyama

IPC分类号： B29C45/28 ,  B29C45/40 ,  B29C45/20

CPC分类号： B29C45/4005 ,  B29C45/2806 ,  B29C45/40 ,  Y10S425/227

摘要： A molding apparatus for plastic objects which includes a valve which allows ejector pins to be positioned in close proximity to the valve needle. The valve includes a valve body and a flange surrounding at least a portion of the valve body such that the outer edges of the valve body and/or the flange may have slots which extend lengthwise from the top to the bottom of the valve. Depressed portions in the side portions of the flange and corresponding outer edges of the valve body may also extend through the length of the valve. The slots and depressed portions may be utilized for positioning ejector pins in close proximity to the valve needle.

摘要翻译： 一种用于塑料物体的成型装置，其包括允许顶针定位在靠近阀针的阀门。 阀包括阀体和围绕阀体的至少一部分的凸缘，使得阀体和/或凸缘的外边缘可以具有从阀的顶部到底部纵向延伸的槽。 凸缘的侧部的凹陷部分和阀体的对应的外边缘也可延伸穿过阀的长度。 狭缝和凹陷部分可以用于将排出销定位在靠近阀针的位置。

公开(公告)号：US4648833A

公开(公告)日：1987-03-10

申请号：US788742

申请日：1985-10-17

申请人： Fujio Yamada

发明人： Fujio Yamada

IPC分类号： B29C45/27 ,  B29C45/03

CPC分类号： B29C45/2737 ,  Y10S425/224 ,  Y10S425/227

摘要： Disclosed herein is a hot nozzle for use with a mold for runnerless injection molding of plastic material. The hot nozzle includes a body formed of a conductive metal having a predetermined electrical resistance. The body has a nozzle portion and a base portion, and has a pair of diametrically disposed longitudinal slits extending substantially over the length thereof except at least a portion of the forward end of the nozzle portion in such a manner as to divide the nozzle portion substantially into two sections. The base portion has on opposite ends separated by the slits a pair of power receiving mechanisms for connection to an external source of power. With this arrangement, the nozzle portion itself, particularly at the front end thereof, is heated by voltage applied across the opposite ends of the base portion. Further, the outer surface of the nozzle body is covered with a dielectric and adiabatic film so as to prevent leakage of resin from the nozzle through the slits and ensure both electrical and thermal insulation of the heating nozzle portion.

摘要翻译： 本文公开了一种用于塑料材料的无浇注注射成型的模具的热喷嘴。 热喷嘴包括由具有预定电阻的导电金属形成的主体。 主体具有喷嘴部分和基部部分，并且具有基本上在其长度上延伸的一对直径布置的纵向狭缝，除了喷嘴部分的前端的至少一部分之外，以使喷嘴部分基本上分开 分为两部分。 底座部分在相对的两端分开狭缝一对电力接收机构，用于连接外部电源。 利用这种布置，喷嘴部分本身，特别是在其前端处，被施加在基部相对端上的电压加热。 此外，喷嘴体的外表面被绝缘绝热膜覆盖，以防止树脂从喷嘴通过狭缝泄漏，并确保加热喷嘴部分的电和热绝缘。

公开(公告)号：US4609032A

公开(公告)日：1986-09-02

申请号：US705941

申请日：1985-02-25

申请人： Guido Perrella

发明人： Guido Perrella

IPC分类号： B22D17/22 ,  B22D17/20 ,  B29C45/20 ,  B22D17/30

CPC分类号： B22D17/2023 ,  Y10S425/227

摘要： A nozzle for a die casting machine of the type having mold halves that move toward and away from the parting line and engage a nozzle located on the parting line. The nozzle is free to "float" a limited amount on its surface mounting so as to assume a correct location at every shot in response to the die inserts closing around it. The nozzle also has a frusto-conical surface on the exit end of its aperture to provide a clean breakaway after a shot is made and only a small contact area is provided on the nozzle for engagement by the molds to reduce heat transfer thereto from the nozzle, moreover the structure increases specific superficial pressure between the nozzle area and the mold insert area in order to crush any metal debris that accumulates during the casting operation.

摘要翻译： 一种用于压铸机的喷嘴，其具有朝向和离开分型线移动并接合位于分型线上的喷嘴的半模。 喷嘴可以在其表面安装上自由​​地“浮动”有限的数量，以便在每个镜头处采取正确的位置，以响应于其周围的模具插件。 喷嘴还在其孔口的出口端处具有截头圆锥形表面，以便在喷射之后提供清洁的分离，并且仅在喷嘴上提供小的接触区域以便由模具接合以减少从喷嘴的传热 而且，该结构增加了喷嘴区域和模具插入区域之间的特定表面压力，以便粉碎在铸造操作期间积聚的任何金属碎屑。

公开(公告)号：US3314105A

公开(公告)日：1967-04-18

申请号：US28820163

申请日：1963-06-17

申请人： OWENS ILLINOIS INC

发明人： AMSDEN DONALD L

IPC分类号： B29C45/28 ,  B29C45/36

CPC分类号： B29C45/28 ,  B29C45/36 ,  B29K2105/253 ,  Y10S425/227

公开(公告)号：US3010156A

公开(公告)日：1961-11-28

申请号：US79316459

申请日：1959-02-13

申请人： SMITH PAUL M

发明人： SMITH PAUL M

IPC分类号： B29C45/23 ,  B29C45/28

CPC分类号： B29C45/234 ,  B29C45/2806 ,  B29C2045/2882 ,  Y10S425/227 ,  Y10T137/7924

公开(公告)号：US20060134264A1

公开(公告)日：2006-06-22

申请号：US11017342

申请日：2004-12-20

申请人： John Hahn

发明人： John Hahn

IPC分类号： B29C45/18

CPC分类号： B29C45/541 ,  Y10S425/227

摘要： A screw for injection molding provides a coaxial piston that allows the effective cross-sectional area of the screw to be varied during the injection cycle permitting small shot metering with relatively large diameter injection molding screws.

摘要翻译： 用于注射成型的螺钉提供同轴活塞，其允许螺杆的有效截面积在注射循环期间变化，允许使用相对大直径的注射成型螺钉进行小射击计量。

公开(公告)号：US4798502A

公开(公告)日：1989-01-17

申请号：US88999

申请日：1987-08-21

申请人： John F. Trout

发明人： John F. Trout

IPC分类号： E04F21/165 ,  E04G23/02 ,  B65B3/04 ,  B29F1/00 ,  E02D5/18

CPC分类号： E04G23/0203 ,  E04F21/165 ,  E04F21/1655 ,  Y10S425/227

摘要： A nozzle utilized to grout or fill cold joints and cracks formed in or occuring at structural corners. The nozzle includes a tip which is defined by converging planar surfaces about an axial opening. The nozzle tip defining surfaces include a relatively large area which is separated from the nozzle axial opening for wall contact to permit the nozzle to be secured by an adhesive or bonding agent to the corner walls before injection of the grouting material or sealant.

摘要翻译： 用于灌注或填充冷接头的喷嘴和在结构拐角处形成或发生的裂纹。 喷嘴包括通过围绕轴向开口会聚平面而限定的尖端。 喷嘴尖端限定表面包括相对较大的区域，其与用于壁接触的喷嘴轴向开口分离，以允许喷嘴在注入灌浆材料或密封剂之前通过粘合剂或粘合剂固定到角壁。

公开(公告)号：US4674257A

公开(公告)日：1987-06-23

申请号：US918154

申请日：1986-10-14

申请人： Neil Rose

发明人： Neil Rose

IPC分类号： B05C17/005 ,  E04B1/41 ,  F16B13/14 ,  E04G21/00

CPC分类号： B05C17/00516 ,  B05C17/00523 ,  E04B1/4171 ,  F16B13/141 ,  Y10S411/907 ,  Y10S411/908 ,  Y10S425/227

摘要： A fixing in a wall is made by drilling a hole, inserting the pin of a nozzle mounted on a hot melt gun into the hole and injecting molten polypropylene into the space between the pin and the hole. The polypropylene is allowed to solidify and the nozzle is removed leaving a wall plug ready for the insertion of a screw.Three embodiments of a nozzle especially adapted for use in this process are described.

摘要翻译： 通过钻孔，将安装在热熔枪上的喷嘴的销插入孔中并将熔融聚丙烯注入到销和孔之间的空间中，从而制成壁上的固定。 允许聚丙烯固化并除去喷嘴，留下准备插入螺钉的壁塞。 描述了特别适用于该方法的喷嘴的三个实施例。

公开(公告)号：US3571856A

公开(公告)日：1971-03-23

申请号：US3571856D

申请日：1969-05-14

申请人： BISCHOFF CHEMICAL CORP

发明人： VOELKER WALTER D

IPC分类号： B29C44/42 ,  B29C45/13 ,  B29C45/46 ,  B23F1/04

CPC分类号： B29C45/13 ,  B29C44/427 ,  B29C45/46 ,  Y10S264/83 ,  Y10S425/225 ,  Y10S425/227

摘要： Giant articles of cellular plastic are molded in injection molding apparatus. Each of a plurality of injection nozzles comprises a bore in which an injection plunger reciprocates between a withdrawn position at which the tip of the injection plunger rests during the brief mold-filling step and an advanced position at which the tip rests during much of the prolonged step of cooling the molded article. As the plunger advances from its withdrawn position, it first acts as a valve to discontinue flow of the plastic into the nozzle bore and then during a principal portion of its advancing stroke, the injection plunger purges the residual cellular plastic between an inlet orifice and the nozzle tip and forces it into the mold. Only in the final stages of the withdrawing stroke does the tip of the injection plunger expose the inlet orifice to open the valve to renew the flow of cellular plastic to the mold. Power means such as a hydraulic cylinder for each injection plunger actuates the reciprocation. The improvement concerns means provided to each injection plunger as soon as it had completed a selected major amount of its withdrawing stroke so that it is temporarily braked at a position near the brink of valve-opening position. Sensors detect and provide signals while an injection plunger is thus braked at a brink of opening position. A simultaneity control system detects the signals and responds as soon as the signals establish that every injection plunger is at such brink of opening position, and then simultaneously releases the brake for each and all of the injection plungers, which then move to the fully withdrawn positions, thereby simultaneously opening all of the valves. More reproducible articles are molded when the plurality of nozzles are reliably opened with improved simultaneity than when the injection plungers withdrawn by the plurality of hydraulic cylinders by a single stage movement.

公开(公告)号：US3052925A

公开(公告)日：1962-09-11

申请号：US59003056

申请日：1956-06-07

申请人： BRONNENKANT PAUL H ,  FERREE CHARLES M

发明人： BRONNENKANT PAUL H ,  FERREE CHARLES M

IPC分类号： B29C45/23 ,  B29C45/46

CPC分类号： B29C45/23 ,  B29C45/46 ,  B29C2045/467 ,  Y10S425/226 ,  Y10S425/227