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1. 发明授权

US4390332A Apparatus for injection molding of parts from foam plastics material and/or from solid plastics material 失效
标题翻译：用于从泡沫塑料材料和/或固体塑料材料注射成型零件的装置
公开(公告)号：US4390332A
公开(公告)日：1983-06-28
申请号：US280598
申请日：1981-07-06
申请人： James W. Hendry
发明人： James W. Hendry
IPC分类号： B29C43/00 , B29C44/34 , B29C44/42 , B29C45/00 , B29C45/03 , B29C45/54 , B29K105/04 , B29D27/00 , B29F1/05 , B29F1/10
CPC分类号： B29C44/3442 , B29C44/424 , B29C45/03 , B29C45/54 , Y10S264/83
摘要： The apparatus molds during each cycle homogeneous plastic material and foam plastic material. It includes a barrel member, a main passageway therein in which is located the screw member. A pair of injecting means for filling molds are provided, one having a homogeneous plastic injection chamber and the other having a foam plastic injection chamber. The first injection means is connected to the screw and barrel member upstream of the place where the inert fluid is introduced into the main passageway whereby homogeneous plastic material is discharged from the main passageway into the first injection means. The apparatus includes means for introducing an inert fluid into the main passageway whereby the rotating screw member mixes the gas with the molten plastic as it moves towards the discharge port which is connected to the second injection means whereby foam plastic material is injected into the foam plastic injection chamber. Each injection means has one or more nozzles connected to a mold located in a press. The molds for both the homogeneous and foam plastics material may be located in different presses or in the same press so that upon each cycle of the screw and barrel assembly and after both injection means have injected the plastic materials into the respective molds, the press or presses close and form the homogeneous plastic parts and the foam plastic parts. The several injection means or devices may be operated simultaneously or sequentially. Thus, it is possible to mold and form homogeneous and foam plastic parts during the same cycle using only one screw member.
摘要翻译：该设备在每个循环期间模塑均匀的塑料材料和泡沫塑料材料。它包括桶构件，其中的主通道位于螺杆构件中。提供一对用于填充模具的注射装置，一个具有均匀的塑料注射室，另一个具有泡沫塑料注射室。第一注射装置连接到惰性流体被引入主通道的位置上游的螺杆和桶构件，由此均匀的塑料材料从主通道排出到第一注射装置中。该装置包括用于将惰性流体引入主通道的装置，由此旋转的螺杆构件在与连接到第二注射装置的排出口移动时将气体与熔融塑料混合，由此将泡沫塑料材料注入到泡沫塑料中注射室。每个注射装置具有连接到位于压机中的模具的一个或多个喷嘴。用于均质和泡沫塑料材料的模具可以位于不同的压力机中或在相同的压力机中，使得在螺杆和筒组件的每个循环上并且在两个喷射装置将塑料材料注入相应的模具中之后，压机或挤压密封，形成均匀的塑料部件和泡沫塑料部件。多个注射装置或装置可以同时或顺序地操作。因此，可以在仅使用一个螺钉构件的相同循环期间模制和形成均匀的泡沫塑料部件。

2. 发明授权

US4380426A Injection molding valve pin direct pneumatic actuator 失效
标题翻译：注塑阀针直接气动执行器
公开(公告)号：US4380426A
公开(公告)日：1983-04-19
申请号：US399730
申请日：1982-07-19
申请人： William J. Wiles
发明人： William J. Wiles
IPC分类号： B29C37/00 , B29C45/00 , B29C45/23 , B29C45/26 , B29C45/28 , B29F1/05
CPC分类号： B29C45/281 , B29C2045/2827 , B29C2045/2875
摘要： This invention relates to a valve gated injection molding system of the type where the melt passage enters the system on general alignment with the valve pin and cavity. The system has a novel valve pin actuating mechanism which is pneumatically operated according to a predetermined timed cycle. A piston which reciprocates in a cylinder has an outer collar portion from which a tongue portion extends inwardly to operatively engage the driven end of the valve pin. The melt passage extends through a portion of the back plate which, in turn, extends through the outer collar portion of the piston and is offset to leave room for the tongue portion of the piston to engage the driven end of the valve pin. Piston rings are located between the piston, back plate and cylinder to prevent excessive air leakage. This center entry system with a pneumatic actuating mechanism provides a more reliable mechanism which may be double acting.
摘要翻译：本发明涉及一种阀门浇注注射成型系统，其中熔体通道进入系统，与阀销和空腔大致对准。该系统具有新颖的阀销致动机构，其根据预定的定时循环气动操作。在气缸中往复运动的活塞具有外凸缘部分，舌部从该凸缘部向内延伸以可操作地接合阀销的从动端。熔体通道延伸穿过后板的一部分，该部分依次延伸穿过活塞的外套环部分并且被偏移以留下活塞的舌部接合阀销的从动端的空间。活塞环位于活塞，后板和气缸之间，以防止空气渗漏过多。这种具有气动执行机构的中心进入系统提供了更可靠的机构，其可以是双重作用。

3. 发明授权

US4279582A Method and apparatus for individual control of injection mold shut-off bushings 失效
标题翻译：注射模具封闭衬套的单独控制方法和装置
公开(公告)号：US4279582A
公开(公告)日：1981-07-21
申请号：US26607
申请日：1979-04-02
申请人： Jesus M. Osuna-Diaz
发明人： Jesus M. Osuna-Diaz
IPC分类号： B29C45/26 , B29C41/00 , B29C45/00 , B29C45/28 , B29C45/37 , B29C45/77 , B29F1/03 , B29F1/05
CPC分类号： B29C45/281 , B29C2045/2817 , B29C2045/2848
摘要： A method and apparatus for multiple cavity injection molding which permits individual variation of gate opening time for mold shut-off bushings. The gate pins for the shut-off bushings are controlled by individual double-acting fluid motor, the bushings being fed by a common manifold. Gate opening is thus not dependent upon attainment of a predetermined injection pressure. Closure of the gate for each cavity will permit material to be fed faster to the other cavities. Novel means is provided for securing each gate pin to its actuating cylinder, which minimizes heat transfer to the motor, accommodates expansion of the material manifold and permits gate opening adjustment. The fluid motors are end-mounted on an actuating fluid manifold, allowing close juxtaposition. A cycle counter may be used to control inventory.
摘要翻译：一种用于多腔注射成型的方法和装置，其允许模具关闭衬套的打开时间的单独变化。封闭衬套的浇口针由单独的双作用流体马达控制，衬套由普通歧管进给。因此，闸门开口不依赖于达到预定的注射压力。每个腔的门的闭合将允许材料被更快地馈送到其它空腔。提供了用于将每个闸销固定到其致动缸的新颖装置，其最小化对电动机的热传递最小化，容纳材料歧管的膨胀并且允许门开度调节。流体电动机端接安装在致动流体歧管上，允许并排。循环计数器可用于控制库存。

4. 发明授权

US4238181A Method and apparatus for runnerless injection-compression molding thermosetting materials 失效
公开(公告)号：US4238181A
公开(公告)日：1980-12-09
申请号：US972189
申请日：1978-12-21
申请人： W. Andrew Dannels , Robert W. Bainbridge
发明人： W. Andrew Dannels , Robert W. Bainbridge
IPC分类号： B29C43/00 , B29C33/00 , B29C41/00 , B29C45/00 , B29C45/27 , B29C45/28 , B29C45/30 , B29C45/37 , B29C45/56 , B29C45/64 , B29C45/73 , B29C45/77 , B29F1/03 , B29F1/05 , B29F1/08
CPC分类号： B29C45/2756 , B29C45/561 , B29K2101/10
摘要： A method and apparatus are described. A thermosetting molding material, suitably a synthetic resin composition such as a phenolic molding composition, is initially heated and plasticized. The plasticized mass is passed as a stream through an injection nozzle which is maintained at a temperature sufficiently high to keep the mass in a plasticized condition but sufficiently low to avoid any substantial curing or setting-up of the mass. The plasticized mass is next passed through a temperature-controlled manifold maintained at a temperature sufficiently high to keep the mass in a plasticized condition but sufficiently low to avoid any substantial curing or setting-up of the mass. In the manifold the plasticized stream is divided into two or more smaller streams which are passed through a plurality of outlets into a plurality of partially open, heated molds. The mold cavities are maintained at temperatures sufficiently high to cure the thermosetting molding material. When the partially open molds are full, the feed stream is interrupted, and the molds are then completely closed to press and cure the plasticized material enclosed within them. The cured, finished article is removed from the mold and the process repeated.The apparatus of the present invention includes a stationary assembly and a movable assembly. The stationary assembly is comprised of a support plate which has a heat plate mounted thereon, a temperature-controlled manifold mounted on the heat plate and a plurality of mold faces positioned on the heat plate surrounding the periphery of the manifold. The movable assembly is comprised of a support plate which has a heat plate mounted thereon and a plurality of mold faces, corresponding to, and adapted to be aligned with the mold faces on the stationary assembly. Means are provided to move the movable assembly into close proximity with the stationary assembly to form partially open mold cavities. Means are provided to feed a supply of thermosetting molding material through the manifold into the partially open mold cavities. Means are also provided to completely close the mold cavities and for subsequent retracting the movable assembly to allow access to the mold face areas.

5. 发明授权

US4412807A Offset flow injection nozzle 失效
标题翻译：胶流注射喷嘴
公开(公告)号：US4412807A
公开(公告)日：1983-11-01
申请号：US343148
申请日：1982-01-28
申请人： Stuart A. York
发明人： Stuart A. York
IPC分类号： B29C45/28 , B29F1/05
CPC分类号： B29C45/2806 , B29C2045/2855
摘要： This relates to an injection nozzle which is provided with a valve gate pin for selectively interrupting plastic flow therethrough. The internal construction of the nozzle is such that the plastic flowing therethrough for injection into an injection mold is uninterrupted and in no way divided so that there will be a separation of the plastic and a rejoining in a manner which will provide for a welded interface. The valve gate pin, notwithstanding the uninterrupted flow passage, is fully supported throughout its length.
摘要翻译：这涉及一种注射喷嘴，其具有用于选择性地中断穿过其中的塑性流动的阀门销。喷嘴的内部结构使得流过其中以注射到注射模具中的塑料不间断，并且绝不分割，使得将以提供焊接界面的方式存在塑料的分离和重新接合。阀门销尽管有不间断的流动通道，但在其整个长度上完全支撑。

6. 发明授权

US4289468A Hydrostatic mold gate 失效
标题翻译：静液压门
公开(公告)号：US4289468A
公开(公告)日：1981-09-15
申请号：US33905
申请日：1979-04-27
申请人： John W. von Holdt
发明人： John W. von Holdt
IPC分类号： B29C45/28 , B29F1/05
CPC分类号： B29C45/28
摘要： A gate for a mold comprises a molding compound inlet conduit for communication of molding compound to the mold cavity. A plunger member is slidably mounted adjacent the inlet conduit and adapted to prevent flow through the conduit in a first sliding position and to permit flow through the conduit in a second sliding position. The plunger defines a slidable shaft and an enlarged end proportioned to prevent the flow through the conduit in the first position. The enlarged end defines a mold cavity-facing surface of larger area than the opposed surface on the enlarged end, which opposed surface communicates with the conduit. Accordingly, pressurized molding compound presses against the opposed surface, to spontaneously open the plunger into a second sliding position to admit molding compound to the mold cavity. Upon essential equalization of the pressures in the mold cavity at the conduit, the plunger is spontaneously moved hydrostatically to its first closed sliding position.
摘要翻译：用于模具的浇口包括用于将模塑料与模腔连通的模塑料入口导管。柱塞构件可相对于入口导管可滑动地安装并且适于防止在第一滑动位置流过导管并允许在第二滑动位置流过导管。柱塞限定可滑动的轴和扩大的端部成比例，以防止在第一位置流过管道。扩大的端部限定了与扩大的端部上的相对表面相比更大面积的面向模腔的表面，该相对表面与导管连通。因此，加压模塑料压靠在相对的表面上，以将柱塞自发地打开到第二滑动位置以允许模塑料到模腔中。在管道上的模具腔中的压力基本均衡时，柱塞自动地被静态地移动到其第一闭合滑动位置。

7. 发明授权

US4004868A Injection mold for laminated article 失效
标题翻译：层压制品注塑模具
公开(公告)号：US4004868A
公开(公告)日：1977-01-25
申请号：US618229
申请日：1975-09-30
申请人： Keiki Ohdate
发明人： Keiki Ohdate
IPC分类号： B29C45/16 , B29F1/05
CPC分类号： B29C45/1635 , B29C2045/1687
摘要： To form a laminated plastic article having at least one thermoset layer, a first resin is injected into a mold from a first nozzle and solidified as usual. Then the dies are separated by a predetermined distance to create an additional cavity for a second resin layer on the solidified resin and at the same time provide a fluid passage, which connects the cavity to a second nozzle and is defined and sealed by opposite faces of the dies at their particularly shaped portions. The passage is unsealed by thoroughly separating the dies after injection of a second resin therethrough and solidification of the resin.
摘要翻译：为了形成具有至少一个热固性层的层压塑料制品，将第一树脂从第一喷嘴注入模具并像往常一样固化。然后将模具分开预定的距离，以在固化的树脂上产生用于第二树脂层的附加空腔，同时提供流体通道，其将空腔连接到第二喷嘴，并且通过相对的面在其特别形状的部分处模具。通过在注入第二树脂之后通过使模具完全分离并使树脂固化而将密封件开封。

8. 发明授权

US3847525A Apparatus for the injection molding of synthetic-resin articles 失效
标题翻译：注射成型合成树脂制品的装置
公开(公告)号：US3847525A
公开(公告)日：1974-11-12
申请号：US15479271
申请日：1971-06-21
申请人： KRAUSS MAFFEI AG
发明人： BIELFELDT F , RICHARDSEN R
IPC分类号： B29C45/12 , B29C45/46 , B29C45/57 , B29F1/05
CPC分类号： B29C45/125 , B29C45/46 , B29C45/572 , B29C2045/577 , Y10S425/229
摘要： An injection system for use with injection-molding machines wherein a storage chamber or accumulator is filled with the thermoplastic synthetic resin during the charging of the mold and, during shrinkage of the mass within the mold cavity, the contents of this reservoir are forced into the mold cavity to compensate for such contraction. Subsequent injection-molding operations are carried out as soon as the previous injectionmolding operation is terminated and the shrinkage or contraction of the mass within the previously-charged mold cavity begins.
摘要翻译：一种用于注射成型机的注射系统，其中在模具充填期间，储存室或蓄能器填充有热塑性合成树脂，并且在模腔内的质量收缩期间，将该储存器的内容物强制进入模腔以补偿这种收缩。一旦先前的注射成型操作终止并且预先充电的模腔内的质量的收缩或收缩开始，则随后的注射成型操作被执行。

9. 发明授权

US3530539A Gate valve for injection molding machines 失效
标题翻译：注射成型机门阀
公开(公告)号：US3530539A
公开(公告)日：1970-09-29
申请号：US3530539D
申请日：1968-02-02
申请人： GELLERT JOBST U
发明人： GELLERT JOBST ULRICH
IPC分类号： B29C45/28 , B29F1/05
CPC分类号： B29C45/2806 , B29C2045/2834 , B29C2045/2879

10. 发明授权

US3443001A Method and mechanism for severing the gate in injection-type molds 失效
标题翻译：用于在注射类型模型中识别闸门的方法和机构
公开(公告)号：US3443001A
公开(公告)日：1969-05-06
申请号：US3443001D
申请日：1966-02-17
申请人： WESTERN ELECTRIC CO
发明人： ADAIR FRANK M , BOO EMIL A DE
IPC分类号： B29C45/38 , B29F1/05
CPC分类号： B29C45/38 , Y10S425/051 , Y10S425/229

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