公开(公告)号：US3773016A

公开(公告)日：1973-11-20

申请号：US3773016D

申请日：1972-01-31

Applicant: BABSON BROS CO

Inventor： NEEDHAM L ,  FITZPATRICK D

IPC: A01J5/00 ,  A01J5/017 ,  A01J5/04

CPC classification number: A01J5/017

Abstract: A control circuit for an automatic milker unit includes a circuit for sensing the flow of milk from each teat cup. When the flow ceases, the liquid sensing circuit actuates a time delay circuit which in turn operates to cause a pneumatic piston to remove the teat cup from the animal. A dribble or sloshing of milk during the time delay does not prevent teat cup removal. However, a resumption of steady milk flow for an extended period of time during the delay will prevent removal of the teat cup until a subsequent cessation of milk flow. A circuit is provided for disabling the sensing circuit for a period of time to permit the operator to attach the teat cups at the start of the milking operation. The four sensing circuits of the milker unit are connected with an output circuit which detects the absence of milk flow from all four quarters of the animal and produces a ''''not milking'''' signal for energizing indicators or other milking system devices. The output circuit also produces an inverse ''''milking'''' signal to energize a motor for supplying feed to the animal or operate other devices so long as milk is flowing.

Abstract translation: 用于自动挤奶机单元的控制电路包括用于感测来自每个奶杯的牛奶流的回路。 当流程停止时，液体感测电路致动延时电路，该延时电路依次操作以使气动活塞从动物中移除奶杯。 在延时期间运球或摇晃的牛奶不能防止奶杯脱脂。 然而，在延迟期间延长持续的牛奶流量恢复将阻止奶头杯的去除，直到牛奶继续停止流动。 提供了一个电路，用于禁用感测电路一段时间，以允许操作者在挤奶操作开始时附接奶杯。 挤奶器单元的四个感测回路与输出回路连接，该输出回路检测到动物的四分之四没有牛奶流动，并产生用于激励指示器或其他挤奶系统装置的“不挤奶”信号。 输出电路还产生反向“挤奶”信号，以激励马达供应动物饲料或操作其他装置，只要牛奶流动即可。