Zebra mechanical pencil Limited Constellation _ Zebra Limited mechanical pencil Will Paint Fall?

Detective Conan Zebra defines how mechanical pencil can tell the truth from the false.

1. The genuine black spot is directly below, and the fake goods are a little outside.

2. The back of the genuine product is very long, about 0.6cm, and the fake product is a little shorter than the genuine product, which can be seen by this discerning person at a glance (I believe everyone is right).

3. The quality of the fake print is OK to tell the truth, but it is still flawed. There is something like a cutting line under the pen container font, while the original font is full and complete.

4. beeswax is different, too. The real thing is bigger and lighter in color, and the fake is smaller and darker in color.

Mechanical pencil, that is, a pencil whose spring returns to its original position after the pressure is released. According to the diameter of pencil lead, mechanical pencil is divided into coarse core and fine core mechanical pencil. According to the core-pulling method, it can be divided into core-dropping type, rotary type, pulsating type and automatic compensation type.

principle

Core-dropping type automatically discharges lead through the gravity of lead. Rotary conveying lead core. Pulse type (push type) conveys the lead core by pushing, and the structure has a push type, that is, pushing and discharging the lead core once. Two-step (two-step, commonly known as double tapping), the pen mouth is pressed out of the pen holder for the first time and the lead core is pressed out for the second time.

Double-head push type, adopting double-head structure, shortens the distance between the chuck and the tip of the pen, so that the last remaining 8 ~ 15 mm lead in the mechanical pencil can be ejected without pushing, and continuous writing can be performed. Automatic compensation (automatic core jacking) can automatically compensate the lead core and write continuously without rotating or pulsating devices. Front-lift type can directly press the pen tip to lead out.