公开(公告)号：US06347934B1

公开(公告)日：2002-02-19

申请号：US09568638

申请日：2000-05-10

Applicant: Per Just Andersen ,  Kristopher R. Turner ,  Matthew E. Laine ,  David A. Dellinger

Inventor： Per Just Andersen ,  Kristopher R. Turner ,  Matthew E. Laine ,  David A. Dellinger

IPC: B29C4543

CPC classification number: B29C31/063 ,  B29C45/0001 ,  B29C45/1808 ,  B29K2003/00 ,  B29K2995/006 ,  B29L2031/7162

Abstract: A system for providing a desired quantity of a mold material into a mold. The system includes an accumulation system and a metering and delivery system. The accumulation system is a temporary reservoir which accepts and stores mold material and then provides the mold material to the metering and deliver system under pressure on demand The accumulation system is exemplified by a cylinder and a pneumatically actuated piston within the cylinder which is capable of selectively withdrawing and advancing so as to accept and then supply mold material under pressure. The metering and delivery system is exemplified by a metering cylinder and a pneumatically actuated metering piston within the cylinder that has a stroke length that defines a volume that substantially corresponds to the volume of mold material that is delivered to the mold. Adjustments to the stroke length of the metering piston may be made in order to fine tune the quantity of mold material that is placed into the mold. The system is particularly well suited for metering and delivering a desired quantity of a Binghamian pseudo-plastic fluid, such as an aqueous starch-based composition used to manufacture foamed, starch-bound articles of manufacture.

Abstract translation: 一种用于将模具材料提供到模具中的所需数量的系统。 该系统包括一个积累系统和计量和传送系统。 积聚系统是临时储存器，其接受并存储模具材料，然后在压力下将模具材料提供给计量和输送系统。积聚系统的例子是气缸内的气动致动活塞，其能够选择性地 退出和推进，以便接受并在压力下供应模具材料。 计量和输送系统的例子是气缸内的计量气缸和气动计量活塞，其具有行程长度，该冲程长度限定基本对应于被输送到模具的模具材料的体积。 可以对计量活塞的行程长度进行调整，以便微调放入模具中的模具材料的数量。 该系统特别适用于计量和输送所需量的Binghamian假塑性流体，例如用于制造泡沫，淀粉结合制品的水性淀粉基组合物。