液体灌装设备原理
Principle of liquid filling equipment
灌装机的计量缸分别连接灌装头，通过主油缸的往复运动，吸人定量的液体，然后注入待装的容器中。在此过程中，需要及时地在 主油缸换向时，切换一个通阀，改变液体的流向。而且，在注入过程中．为加快灌装速度又不致使液体溢出，当灌装到满瓶的90%时，要开启 一个串接在注入通路中的节流阀，使注入的流量显著减小。然后，已装灌完毕的容器将顺序移出，新的空容器顺次移人，在此过程中，准确 和及时地控制安装在容器入口和出口的阻拦板，保证每次只移入和移出容器，同时要确保不管使用哪种形状的容器，使灌装头都能恰好能与容 器的瓶口完全吻合，否则输出报警信号，而且在故障未排除之前，不让灌装继续进行。 最后，灌装头在容器到位后能准确下移使灌装插入瓶口 ，灌装完毕后，灌装头应迅速上移，使容器能顺利移出。
The metering cylinder of the filling machine is connected with the filling head respectively. Through the reciprocating movement of the main oil cylinder, the quantitative liquid is sucked in, and then injected into the container to be filled. In this process, it is necessary to switch a through valve to change the flow direction of the liquid when the main cylinder changes direction. In addition, in order to speed up the filling process without causing liquid overflow, when filling to 90% of the full bottle, a throttle valve connected in series in the injection channel should be opened to reduce the injection flow significantly. Then, the filled containers will be moved out in sequence, and the new empty containers will be moved in sequence. In this process, the baffle plates installed at the inlet and outlet of the container should be controlled accurately and timely to ensure that only the container can be moved in and out of the container each time. At the same time, no matter what shape of container is used, the filling head can exactly match the capacity The bottle mouth of the device is completely consistent, otherwise, the alarm signal will be output, and the filling will not continue until the fault is eliminated. Finally, the filling head can move down accurately after the container is in place, so that the filling can be inserted into the bottle mouth. After filling, the filling head should be moved up quickly to make the container move out smoothly.