公开(公告)号：US5064120A

公开(公告)日：1991-11-12

申请号：US442596

申请日：1989-11-29

Applicant: Noel E. Luttrell, Jr.

Inventor： Noel E. Luttrell, Jr.

IPC: B29B7/74

CPC classification number: B05B12/008 ,  B29B7/7452 ,  Y10S239/08

Abstract: Apparatus for use in spray-up construction of a fiberglass article in an open mold includes a manually operable spray gun for spraying liquid resin and liquid catalyst, and for chopping and emitting fiberglass roving together with the resin. A positive displacement resin and catalyst pump operated by an airmotor pumps resin and catalyst to the spray gun. A pneumatic electrical switch on the air-motor monitors air exhaust therefrom and is closed upon each air-exhaust pulse. The number of air-exhaust pulses of the air-motor is proportional to the cumulative amount of resin pumped. An electronic counter electrically connected to the pneumatic switch counts the number of switch closings and drives an LCD numerical display which displays the number of pulses counted. The LCD display is located on the spray gun where it can be seen by the operator during operation of the spray gun, such that the operator is continually apprised of the amount of resin which has been dispensed. Thus, the operator can stop the spray-up operation when a predetermined amount of resin has been applied to the mold. An air driven fiberglass chopper on the spray gun is supplied with air from a compressed air supply. A flow meter in line with the compressed air supply is located proximate the spray gun in view of the operator to apprise him of the rate of flow of air to the chopper.

Abstract translation: 用于在开模中的玻璃纤维制品的喷涂构造中使用的装置包括用于喷射液体树脂和液体催化剂的手动操作的喷枪，以及用于将树脂与玻璃纤维粗纱一起切割和发射的装置。 由空气马达操作的正排量树脂和催化剂泵将树脂和催化剂泵送到喷枪。 气动马达上的气动电气开关监测从其排出的排气，并且在每个排气脉冲时关闭。 空气马达的排气脉冲数与泵送的树脂的累积量成比例。 与气动开关电连接的电子计数器对开关闭合次数进行计数，并驱动显示计数脉冲数的LCD数值显示。 LCD显示器位于喷枪上，操作者在喷枪操作期间可以看到喷枪，使得操作者不断地了解已经分配的树脂的量。 因此，当将预定量的树脂施加到模具时，操作者可以停止喷射操作。 喷枪上的空气驱动玻璃纤维切碎机从压缩空气源供应空气。 鉴于操作者，与压缩空气供应一致的流量计位于喷枪附近，以向他通知空气流向斩波器的速率。