螺纹丝杠式剪切茶叶，原理如图3-3所示。刀片通过固定块连接在丝杠上，丝

The principle of threaded screw cutting tea leaves is shown in Figure 3-3. The blade is connected to the screw through a fixed block. The screw has a reverse thread. When the motor drives the threaded screw to rotate, the blade is moved in reverse. By controlling the screw, the tea picking action can be completed. The advantage of this structure is that the cutting effect is better, but in order to ensure that the blade is in an open state greater than or equal to the size of normal fresh leaves, the threaded screw will be longer, the structure size is large, and only the tea leaves in a fixed height horizontal plane can be picked. When the canopy surface is non-horizontal, picking efficiency cannot be guaranteed. Moreover, when the fresh tea leaves grow densely, it is easy to cause damage to the tea leaves around the target fresh leaves.

Threaded screw cut tea, the principle is shown in Figure 3-3. The blade is connected to the screw by a fixed block, the screw is a reverse thread, the motor drives the threaded screw rotation, drives the blade reverse motion, through the control screw can complete the tea picking action. The advantage of this structure is that the shearing effect is better, but in order to ensure that the blade opening state is greater than or equal to the general fresh leaf size, the thread edgy bar will be longer, the structure size is large, and can only pick the tea in the fixed height horizontal surface, when the surface of the teacan is a non-horizontal surface, there is no guarantee of picking efficiency. And when the tea leaves grow densely, it is easy to damage the tea leaves around the target fresh leaves.

The principle of thread lead screw type cutting tea is shown in Figure 3-3. The blade is connected to the lead screw through a fixed block, and the lead screw is a reverse thread. When the motor drives the screw screw to rotate, it drives the blade to move in reverse direction, and the tea picking action can be completed by controlling the lead screw. The advantage of this structure is that the shear effect is good, but in order to ensure that the blade opening state is greater than or equal to the general fresh leaf size, the threaded lead screw will be relatively long, the structure size is large, and only tea in the fixed height horizontal plane can be picked, when the surface of the tea canopy is non-horizontal plane, the picking efficiency cannot be guaranteed. Moreover, when the fresh tea leaves grow intensively, it is easy to damage the tea around the target fresh leaves.