公开(公告)号：US5336460A

公开(公告)日：1994-08-09

申请号：US89617

申请日：1993-07-12

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B29C45/14 ,  B29K105/20 ,  B29L22/00 ,  B29C45/04 ,  B29C45/16

CPC分类号： B29C45/14336 ,  B29L2031/22

摘要： A hinged plastic housing and a process for making same wherein a hinge formed from a deformable lamina is integrated with first and second enclosing 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 enclosing members. The deformable lamina at least partially extends into the mold cavity for the first enclosing member and the mold cavity for the second enclosing member as well as therebetween. 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 resultant housing is then removed from the mold unit with the deformable lamina hinge integrated with the first and second enclosing members. The deformable lamina may extend over the entire exterior or interior surfaces of the first and second enclosing members to form a combined hinge and exterior covering or interior lining respectively.

摘要翻译： 铰链塑料外壳及其制造方法，其中由可变形薄片形成的铰链在注塑塑料材料期间与第一和第二封闭构件一体化。 在将第一模具部分和第二模具部分夹紧在一起之前，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封闭构件的注射模腔。 可变形层至少部分地延伸到用于第一封闭构件的模具腔和用于第二包封构件的模腔以及它们之间。 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。 然后将合成的壳体从模具单元移除，其中可变形的层板铰链与第一和第二封闭构件一体化。 可变形层可以在第一和第二封闭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部覆盖物或内衬。

公开(公告)号：US6060005A

公开(公告)日：2000-05-09

申请号：US148256

申请日：1998-09-04

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

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

CPC分类号： B29C45/7613 ,  B29C45/00 ,  B29C45/0046 ,  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. Once the mold cavity has reached a pre-determined level of fill, the rate-dominated control algorithm is changed to a pressure-dominated control algorithm 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。 一旦模腔已经达到预定的填充水平，则以速率为主的控制算法被改变为以压力为主的控制算法，以防止超越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。

公开(公告)号：US5972259A

公开(公告)日：1999-10-26

申请号：US534513

申请日：1995-09-27

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B29C44/04 ,  B29C53/06 ,  B29C44/06 ,  B29C53/36

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：US5788332A

公开(公告)日：1998-08-04

申请号：US639777

申请日：1996-04-29

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B60N2/70 ,  A47C7/02

CPC分类号： B60N2/7017 ,  Y10S5/952

摘要： A seat unit is provided comprising a base structure and at least one cushion layer comprised of a random mesh of plastic filament between the base structure and the cover layer. The cushion layer not only provides adequate firmness, but has adequate air circulation therethrough. The perimeter of the cushion may be molded in with a plastic base structure, and there may be multiple cushion layers where each layer has a different density. The multiple layers of cushioning where each layer has a different density further allow the seat to have both a specifically desired firmness and air circulation therethrough. Also provided is a method for molding in the cushioning with the base structure as well as molding in a spring layer and a cover layer.

摘要翻译： 提供了一种座椅单元，其包括基部结构和至少一个由在基底结构和覆盖层之间的塑料丝的无规网构成的缓冲层。 缓冲层不仅提供足够的坚固性，而且具有足够的空气循环。 衬垫的周边可以用塑料基底结构模制，并且可以存在多个缓冲层，其中每个层具有不同的密度。 每个层具有不同密度的多层缓冲进一步允许座具有特定期望的坚固性和通过其中的空气循环。 还提供了一种用于在基础结构的缓冲中模制的方法，以及在弹簧层和覆盖层中的模制。

公开(公告)号：US5618487A

公开(公告)日：1997-04-08

申请号：US391552

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： B29C45/6728

摘要： An apparatus and method for clamping a plastic injection mold. A first mold section is provided with a plurality of leader pins which protrude through apertures in a second mold section when the mold sections are brought into mating engagement to form a mold cavity. The second mold section is provided with cylindrical hydraulic cylinders having longitudinal passageways sufficient to accommodate the leader pins. Each hydraulic cylinder is provided with a locking assembly capable of engaging grooves provided in the ends of the leader pins. Once the leader pins have been moved through the second mold section and hydraulic cylinders the locking mechanisms engage the leader pins to allow the hydraulic cylinders to push against the locking mechanisms in an effort to clamp the mold sections together. By using a plurality of strategically placed leader pins and clamping assemblies, large clamping systems can be eliminated and more precise clamping pressures can be applied to the mold sections. Since large prior art clamping systems can be eliminated, the size and weight of the present invention clamping system is substantially decreased.

摘要翻译： 一种用于夹持注塑模具的装置和方法。 第一模具部分设置有多个引导销，当模具部分配合接合以形成模腔时，多个引导销突出穿过第二模具部分中的孔。 第二模具部分设置有具有足以容纳引导销的纵向通道的圆柱形液压缸。 每个液压缸设置有能够接合设置在引导销的端部中的槽的锁定组件。 一旦引导销已经移动通过第二模具部分和液压缸，锁定机构接合引导销，以允许液压缸推动锁定机构以努力将模具部分夹在一起。 通过使用多个策略性的引导销和夹紧组件，可以消除大的夹紧系统，并且可以对模具部分施加更精确的夹紧压力。 由于可以消除大型现有技术的夹紧系统，所以本发明夹紧系统的尺寸和重量显着降低。

公开(公告)号：US5496508A

公开(公告)日：1996-03-05

申请号：US350624

申请日：1994-12-07

申请人： Siebolt Hettinga ,  Peter J. Aretz

发明人： Siebolt Hettinga ,  Peter J. Aretz

IPC分类号： B29B11/06 ,  B29B17/00 ,  B29C43/22 ,  B29K105/26 ,  B29C45/17

CPC分类号： B29B17/0005 ,  B29B11/06 ,  B29C43/222 ,  Y02W30/62

摘要： A method and apparatus for recycling pure which is disgorged from a plastic injection molding machine. The apparatus has a hopper which is placed below the injection nozzle of an injection molding machine. Purge is released from the injection nozzle and falls into a hopper located on the apparatus. From the hopper the purge is drawn downward by two coacting compression rollers which have the dual function of compressing and forming the purge into a recyclable form. After compression and forming the purge is available for storage or reuse.

摘要翻译： 一种从塑料注射成型机中排出的纯净回收方法和装置。 该装置具有放置在注射成型机的喷嘴下方的料斗。 吹扫从注射喷嘴释放并落入位于设备上的料斗中。 从料斗中，吹扫通过两个共同作用的压缩辊向下拉，其具有将吹扫压缩并形成可回收形式的双重功能。 在压缩和形成吹扫之后可用于存储或再利用。

公开(公告)号：US5422059A

公开(公告)日：1995-06-06

申请号：US76185

申请日：1993-06-14

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B29C45/00 ,  B29C45/27 ,  B29C45/33

CPC分类号： B29C45/2701 ,  B29C45/33 ,  B29C2045/2714 ,  B29C2045/338 ,  B29C45/0025 ,  B29C45/2708 ,  Y10S425/051

摘要： A method and apparatus for injection molding a plastic part using a film gate. The film gate is constructed of a pair of tenon members which retract into a mortise tooled into a mold section. Because the tenon members extend to release the dross formed in the runner, the film gate may be placed in the center of the mold section to decrease the pressure gradient in the curing plastic and to allow the gate to be located where aesthetic aberrations, from the removal of the dross, will not be a problem in the finished article.

摘要翻译： 一种使用薄膜浇注模塑塑料部件的方法和装置。 电影门由一对榫头构件构成，榫形构件缩回到模具部分中的榫眼中。 因为榫头构件延伸以释放在流道中形成的浮渣，所以可将薄膜浇口放置在模具部分的中心，以降低固化塑料中的压力梯度，并允许浇口位于美观像差处 去除渣滓，在成品中不会有问题。

公开(公告)号：US4286731A

公开(公告)日：1981-09-01

申请号：US119639

申请日：1980-02-07

申请人： Siebolt Hettinga

发明人： Siebolt Hettinga

IPC分类号： B65H1/06 ,  B65H3/02 ,  B65G59/06

CPC分类号： B65H1/06 ,  B65H3/02

摘要： A device that is manually actuable by a user for dispensing a plurality of soap leaf sheets one at a time includes a housing with at least a back wall, a bottom wall with a central opening, and a front wall with a dispensing slot adjacent the bottom wall. Channels are located at opposite sides of the central opening, and a dispensing member rides in the channels for movement in a parallel relation to the soap leaf sheets. The dispensing member also has limited pivotal movement transversely of the channels from a rest position in which the dispensing member is spaced from the soap leaf sheets to a moved position in which the dispensing member engages the bottom one of the sheets. A bias spring is employed for normally holding the dispensing member in the rest position, but application of a dispensing force by a user upon the dispensing member concurrently pivots such member into engagement with the bottom soap leaf sheet and linearly moves such member toward the housing front wall to convey the bottom sheet through the housing dispensing slot.

摘要翻译： 由用户可手动地分配多个皂叶片的装置一次包括具有至少后壁的壳体，具有中心开口的底壁以及具有与底部相邻的分配槽的前壁 壁。 通道位于中央开口的相对侧，并且分配构件沿着与皂叶片平行的关系移动通道。 分配构件还具有从休止位置横向于通道的枢转运动，其中分配构件与肥皂叶片间隔开到移动位置，在该位置中分配构件接合底部的一个片材。 采用偏置弹簧来将分配构件正常地保持在静止位置，但是使用者在分配构件上施加分配力同时使该构件与底部肥皂叶片接合并将这种构件线性移动到壳体前部 壁通过壳体分配槽传送底部片材。

公开(公告)号：US5902525A

公开(公告)日：1999-05-11

申请号：US648221

申请日：1996-05-13

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。

公开(公告)号：US5437823A

公开(公告)日：1995-08-01

申请号：US82266

申请日：1993-06-23

申请人： Siebolt Hettinga ,  Harold J. Buehl

发明人： Siebolt Hettinga ,  Harold J. Buehl

IPC分类号： B29C44/04 ,  B29C44/06 ,  B29C44/10

CPC分类号： B29C44/0407

摘要： A method of molding a plastic part with a controlled 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 forming 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 recompression 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.

摘要翻译： 一种以可控制的密度模塑塑料部件的方法，其中将发泡剂加入到塑料材料中，并将该材料注入模具单元的模腔中。 模腔的内壁保持在足以防止成型塑料制品的外皮产生气泡的温度。 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，然后建立再压缩阶段，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。