公开(公告)号：US5773038A

公开(公告)日：1998-06-30

申请号：US423797

申请日：1995-04-18

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B29C45/26 ,  B29C45/27 ,  B29C45/22

CPC分类号： B29C45/2703 ,  B29C45/26 ,  B29C2045/2691

摘要： An apparatus and method for sequentially molding a plurality of plastic articles within a single mold unit. A first mold section is provided with a runner system and a plurality of gates and a second mold section is provided with a plurality of recesses in operable alignment with the gates of the first mold section. When the second mold section is clamped into mating engagement with the first mold section, a plurality of discrete mold cavities are formed, each having at least one corresponding gate provided on the first mold section. A central processing unit signals an injection assembly as to the proper injection parameters for each discrete mold cavity. The central processing unit opens the gates sequentially, with each discrete mold cavity being filled according to its own set of injection parameters. By the present method, it is possible to mold a plurality of articles having different injection parameters, while using a single mold unit. The present method also makes it possible to mold the small articles without having to overfill the mold cavity, which could result in defective products or damage to the mold unit. Because the present method can be used to mold a plurality of small sets of small articles, more precision can be obtained than with the prior art method of filling one large set of small articles.

摘要翻译： 一种用于在单个模具单元内顺序地模制多个塑料制品的装置和方法。 第一模具部分设置有流道系统和多个浇口，并且第二模具部分设置有与第一模具部分的浇口可操作对准的多个凹部。 当第二模具部分被夹紧成与第一模具部分配合接合时，形成多个分立的模具腔，每个模腔具有设置在第一模具部分上的至少一个对应的浇口。 中央处理单元针对每个离散的模具空腔向适当的注入参数发出注射组件的信号。 中央处理单元依次打开门，每个离散的模具腔根据其自己的一套注入参数进行填充。 通过本方法，可以在使用单个模具单元的情况下模制具有不同注射参数的多个制品。 本方法也可以模制小物品而不必过度填充模腔，这可能导致不良产品或模具单元的损坏。 由于本方法可以用于模制多个小件小件物品，所以与现有技术的填充一大套小物品的方法相比，可以获得更高的精度。

公开(公告)号：US5762852A

公开(公告)日：1998-06-09

申请号：US284386

申请日：1994-08-02

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B29C45/14 ,  B29C45/04 ,  B29C45/16

CPC分类号： B29C45/14336 ,  B29L2031/22

摘要： A process for making a hinged plastic article wherein a hinge formed from a deformable lamina is integrated with first and second thermoplastic members during injection of the plastic material. The deformable lamina is placed between the first mold section and the second mold section of an injection mold unit before the first mold section and the second mold section are clamped together to form injection mold cavities for the first and second thermoplastic members. A mold cavity dividing member separates the mold cavities for the first and second thermoplastic members. The deformable lamina at least partially extends into the mold cavity for the first thermoplastic member and the mold cavity for the second thermoplastic member as well as therebetween to form a hinge. The first mold section and the second mold section are then clamped together and a plastic material is injected into the mold cavities and in bonding securement of the deformable lamina. The mold cavity dividing member prevents the plastic material from passing between the mold cavities and from contacting the hinge portion of the deformable lamina. The resultant article is then removed from the mold unit with the deformable lamina hinge integrated with the first and second thermoplastic members. The deformable lamina may extend over the entire exterior or interior surfaces of the first and second thermoplastic members to form a combined hinge and exterior covering or interior lining respectively.

摘要翻译： 一种用于制造铰链塑料制品的方法，其中由可变形层板形成的铰链在注塑塑料材料期间与第一和第二热塑性构件整合。 在将第一模具部分和第二模具部分夹在一起之前，可变形层被放置在注射模具单元的第一模具部分和第二模具部分之间，以形成用于第一和第二热塑性构件的注射模腔。 模腔分隔构件分离用于第一和第二热塑性构件的模腔。 可变形层至少部分地延伸到用于第一热塑性构件的模具腔和用于第二热塑性构件的模腔以及它们之间以形成铰链。 然后将第一模具部分和第二模具部分夹紧在一起，并将塑料材料注入到模具腔中并粘合固定可变形薄片。 模腔分隔构件防止塑料材料在模腔之间通过并且与可变形层的铰链部分接触。 然后将所得制品从模具单元中移除，其中可变形层板铰链与第一和第二热塑性构件成一体。 可变形层可以在第一和第二热塑性构件的整个外表面或内表面上延伸以分别形成组合的铰链和外覆盖物或内衬。

公开(公告)号：US5665405A

公开(公告)日：1997-09-09

申请号：US391591

申请日：1995-02-21

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B29C45/67 ,  B29C45/64

CPC分类号： B29C45/6714

摘要： A method and apparatus for clamping a plastic injection mold. The apparatus utilizes leader pins connected directly to a pair of mold sections. By directly connecting the leader pins to the mold sections, standard platens and housings can be eliminated, thereby reducing the overall weight and dimensions of the apparatus. An ejection assembly and runner assembly are bolted onto the mold sections, but are not subjected to clamping pressures during the molding process. Since these assemblies are not subject to clamping pressures, the standard housings usually provided on these assemblies may also be eliminated.

摘要翻译： 一种用于夹紧注塑模具的方法和装置。 该设备使用直接连接到一对模具部分的引导销。 通过将引导销直接连接到模具部分，可以消除标准压板和壳体，从而减小设备的整体重量和尺寸。 喷射组件和流道组件被螺栓连接到模具部分上，但是在模制过程中不会受到夹紧压力。 由于这些组件不受夹紧压力的影响，所以也可以消除通常设置在这些组件上的标准外壳。

公开(公告)号：US5380186A

公开(公告)日：1995-01-10

申请号：US836985

申请日：1992-02-14

申请人： Siebolt Hettinga ,  James K. Ober

发明人： Siebolt Hettinga ,  James K. Ober

IPC分类号： B29C45/53 ,  B29C45/58 ,  B29C45/02

CPC分类号： B29C45/532 ,  B29C45/586

摘要： A flow regulating assembly for restricting plastic material from flowing directly from a central chamber of an injection piston to an accumulator cavity of a plastic injection machine and instead directing the plastic material towards the wall of the accumulator cavity thereby providing a scouring effect and reducing build-up of the plastic material on the wall of the accumulator cavity. The flow regulating assembly includes a valve member having a central opening located proximate to and in corresponding alignment with the central chamber of the injection piston and four branch passageways extended from the central opening of the valve member to external openings in a circumferential groove in an outer edge of the valve member, the outer edge of the valve member which is concentric with and proximate to the wall of the accumulator cavity. Four channels are located on a conical-shaped head portion of the valve member proximate to the circumferential groove.

摘要翻译： 流动调节组件，用于限制塑料材料直接从注射活塞的中心腔流入塑料注射机的蓄能器空腔，而不是将塑料材料引导到蓄能器腔的壁上，从而提供冲刷效果， 在蓄能器腔的壁上的塑料材料。 流量调节组件包括阀构件，该阀构件具有邻近注射活塞的中心室并且与其对应的中心开口，以及从阀构件的中心开口延伸到外部开口的外部开口 阀构件的边缘，阀构​​件的外边缘与蓄能器腔的壁同心并且靠近蓄积器空腔的壁。 四个通道位于靠近圆周槽的阀构件的锥形头部。

公开(公告)号：US4743323A

公开(公告)日：1988-05-10

申请号：US926723

申请日：1986-11-04

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B68G7/02 ,  A47C7/02 ,  A47C7/16 ,  A47C31/02 ,  B29C45/14 ,  B29C45/16 ,  B29C45/26 ,  B29C70/48 ,  B29C70/54 ,  B29C70/74 ,  B29L9/00 ,  B29L31/44 ,  B29L31/58 ,  B32B5/18 ,  B32B27/12 ,  B60N2/90 ,  B68G7/00

CPC分类号： B29C70/48 ,  B29C45/1418 ,  B29C45/14336 ,  B29C70/541 ,  B29C70/74 ,  B29K2713/00 ,  B29L2031/58

摘要： The method of this invention provides for the molding of a composite article such as a woven seat for use in furniture or automobiles wherein a woven fabric material and a plastic frame structure coact to enhance their respective strength characteristics. The fabric material is maintained under tension during the molding operation concurrently with the perimetral portion thereof being imbedded in a bonded relation with the frame structure. The strength characteristics of the woven fabric material are thus increased due to the uniform load distribution over the total area of the fabric seat resulting from the bonded securement of the perimetral portion with the frame structure.

摘要翻译： 本发明的方法提供了用于家具或汽车的复合制品例如编织座的模制，其中机织织物材料和塑料框架结构共同加强其各自的强度特性。 织物材料在模制操作期间保持在张力下，与其周边部分以与框架结构结合的关系嵌入。 因此，织物材料的强度特性由于通过框架结构的周边部分的结合固定而导致的织物座位的总面积上的均匀的负荷分布而增加。

公开(公告)号：US4350193A

公开(公告)日：1982-09-21

申请号：US145423

申请日：1980-05-01

申请人： James McCambridge ,  Siebolt Hettinga

发明人： James McCambridge ,  Siebolt Hettinga

IPC分类号： B23D47/02 ,  B23D59/00 ,  B23Q1/74 ,  B25H1/00 ,  B25H1/14 ,  B27C9/00

CPC分类号： B23D59/007 ,  B23D47/025 ,  B23Q1/74 ,  B25H1/005 ,  B25H1/14 ,  Y10T83/773 ,  Y10T83/8763

摘要： A power tool accessory table for attaching portable power tools to convert them for use as table-mounted tools, consisting of a removable plate to which the power tool may be attached so that its cutting element projects above the plate's top surface, and a tabletop with an opening in which the plate and attached tool are supported when placed therein from above. The table also has detachable side panels for enlarging the work surface, a remote switch for controlling the tool, an easily removable safety guard, and a friction locked rip fence for guiding workpieces.

摘要翻译： 一种电动工具附件表，用于连接便携式电动工具，将其转换为桌面式工具，由可拆卸板组成，电动工具可附接到可移动板上，使其切割元件突出在板的顶部表面上方， 当从上方放置板和附接工具时，支撑该开口。 该工作台还具有用于放大工作表面的可拆卸侧面板，用于控制工具的远程开关，易于拆卸的安全防护装置和用于引导工件的摩擦锁定的防护栅栏。

公开(公告)号：US06217973B1

公开(公告)日：2001-04-17

申请号：US09368059

申请日：1999-08-03

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B32B300

CPC分类号： B29C44/04 ,  B29C53/066 ,  Y10T156/1002 ,  Y10T428/233 ,  Y10T428/24496 ,  Y10T428/2457 ,  Y10T428/24992 ,  Y10T428/249961 ,  Y10T428/249989

摘要： A method for forming an angled plastic article of varying density whereby a blowing agent is added to a plastic material and the material is injected into a mold cavity of a mold unit. The interior walls of the mold cavity are maintained at a temperature sufficient to prevent the outer skin of the hardening plastic article from producing gas bubbles. The volume of the mold cavity is increased to allow bubbles to produce and uniformly distribute themselves throughout the mold cavity and then a reconversion phase is instituted whereby the desired density of the finished plastic article is achieved without voids or aberrations appearing in the surface of the plastic article. The mold unit is provided with extensible beveled edges which extend and retract as the mold cavity is enlarged and compressed. By this method, a resulting plastic article of varying density is produced having grooves running the length of the article. After the molding process is complete, an adhesive is applied to the grooves and the molded article is bent whereafter the adhesive maintains the article in the angled orientation. By this method, a complex structure having a smooth outer skin and a lightweight interior may be produced quickly and efficiently.

摘要翻译： 一种用于形成具有不同密度的成角度的塑料制品的方法，其中将发泡剂添加到塑料材料中，并且将材料注入模具单元的模腔中。 模腔的内壁保持在足以防止硬化塑料制品的外表面产生气泡的温度。 模腔的体积增加以允许气泡产生并均匀地分布在整个模腔中，然后建立再转化阶段，从而实现成品塑料制品的期望密度，而在塑料表面出现空隙或像差 文章。 模具单元设置有可扩展的倾斜边缘，其随着模腔被扩大和压缩而延伸和缩回。 通过这种方法，产生具有不同密度的所得塑料制品，其具有延伸制品长度的凹槽。 在模制过程完成之后，将粘合剂施加到凹槽，并且模制品被弯曲，然后粘合剂将制品保持在倾斜的方向。 通过这种方法，可以快速且有效地制造具有光滑外皮和轻质内部的复杂结构。

公开(公告)号：US6146562A

公开(公告)日：2000-11-14

申请号：US42342

申请日：1998-03-13

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B29C44/04 ,  B29C44/08 ,  B29C44/06

CPC分类号： B29C44/086 ,  B29C44/0415

摘要： A method for producing an injection molded article with a gradually varying cellular density distribution, whereby the cellular density distribution varies between a first cellular structure of a high density and a second cellular structure of a relatively lower density. The method comprises forming a mold cavity be engaging a first mold section with a second mold section and injecting into the mold cavity an injection mixture which contains a blowing agent. A gradually varying density distribution is created according to a predetermined control function which depends on the mold cavity volume and the injection rate of the injection mixture.

摘要翻译： 一种具有逐渐变化的细胞密度分布的注塑制品的制备方法，其中细胞密度分布在高密度的第一细胞结构和密度相对较低的第二细胞结构之间变化。 该方法包括：形成模腔，其将第一模具部分与第二模具部分接合，并将包含发泡剂的注射混合物注入到模腔中。 根据取决于模腔体积和注射混合物的注射速率的预定控制功能，产生逐渐变化的密度分布。

公开(公告)号：US6139934A

公开(公告)日：2000-10-31

申请号：US42341

申请日：1998-03-13

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B29C44/04 ,  B29C44/08 ,  B32B5/18 ,  B32B7/02 ,  B65D39/00

CPC分类号： B65D39/00 ,  B29C44/0415 ,  B29C44/086 ,  B32B5/18 ,  B32B7/02 ,  B65D39/0011 ,  B29C2043/3615 ,  B29L2031/565 ,  Y10T428/214 ,  Y10T428/215 ,  Y10T428/24992

摘要： An injection molded bottle closure with a gradually varying cellular density distribution, whereby the cellular density distribution varies between a first cellular structure of a high density and a second cellular structure of a relatively lower density. The method of forming the injection molded bottle closure comprises forming a mold cavity be engaging a first mold section with a second mold section having a retractable portion, and injecting into the mold cavity an injection mixture which contains a blowing agent. A gradually varying density distribution is created according to a predetermined control function which depends on the mold cavity volume and the injection rate of the injection mixture.

摘要翻译： 具有逐渐变化的细胞密度分布的注射成型的瓶盖，其中细胞密度分布在高密度的第一细胞结构和相对较低密度的第二细胞结构之间变化。 形成注射成型的瓶盖的方法包括形成模具腔，其与第一模具部分接合，具有可缩回部分的第二模具部分，以及将包含发泡剂的注射混合物注入模腔中。 根据取决于模腔体积和注射混合物的注射速率的预定控制功能，产生逐渐变化的密度分布。

公开(公告)号：US6056902A

公开(公告)日：2000-05-02

申请号：US146603

申请日：1998-09-03

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B29C45/46 ,  B29C45/00 ,  B29C45/50 ,  B29C45/76 ,  B29C45/77 ,  B29K101/00

CPC分类号： B29C45/00 ,  B29C45/0046 ,  B29C45/76 ,  B29C45/7613 ,  B29C45/77

摘要： A method for injecting a plastic material into a mold cavity to precisely fill the mold cavity under low pressure and to avoid packing the mold cavity with plastic material. The plastic material is injected into the mold cavity at a rate sufficient to maintain an unbroken melt front and to avoid any spraying or splashing of the plastic material within the mold cavity. After an initial unbroken melt front is established, the rate at which the material is injected is increased in proportion to the size of the melt front. After a predetermined amount of the material has entered the mold cavity, the material is injected based upon a rate-dominated control algorithm which maintains the unbroken melt front. After detecting an indicia of a decrease in the surface area of the melt front, the material is injected based upon a pressure-dominated control algorithm where the injection rate is adjusted as needed so that an injection set limit is not exceeded in order to prevent overrunning the end point of the mold process and to eliminate splashing and associated backflow problems. The injection pressure is monitored and controlled until the mold cavity has been precisely filled, at which time the injection pressure is maintained until the plastic article has hardened within the mold cavity. By filling the mold cavity exactly, the prior art problems associated with packing, such as warping and flash, are eliminated in the present invention and a more uniform product is produced from less material.

摘要翻译： 一种用于将塑料材料注入模腔以在低压下精确填充模具腔并避免用塑料材料包装模腔的方法。 将塑料材料以足够的速度注入模腔中，以保持熔体前端不变，并避免塑料材料在模具腔内发生喷溅或飞溅。 在建立初始未破裂的熔体前沿之后，注入材料的速率与熔体前沿的尺寸成比例地增加。 在预定量的材料进入模腔之后，基于速率控制的控制算法注入材料，该算法保持不间断的熔体前沿。 在检测到熔体前面的表面积减小的标记之后，基于压力控制的控制算法注入材料，其中根据需要调整喷射速率，使得不超过喷射设定极限，以防止超程 模具过程的终点，并消除飞溅和相关的回流问题。 监测和控制注射压力，直到模具腔已被精确地填充，此时保持注射压力，直到塑料制品在模腔内硬化。 通过精确地填充模腔，在本发明中消除了与包装相关的现有技术问题，例如翘曲和闪光，并且由较少的材料制造更均匀的产品。