Automatic tying machine for crops, bundles, or bundled products

An automatic tying machine, comprising:

• a case (100) having a front opening for inserting a crop, a bundle, or a bundled products;
• a tying string supply (200) provided behind the case;
• a feeder (300) providing a tying string of the tying string supply forward;
• a rotational tying string guide (400) winding the tying string supplied from the feeder around the crop, bundle, or bundled product as a rotating gear is rotated by a driving motor;
• a tying string cutter (500) cutting the tying string wound around the crop, bundle, or bundled product by the rotational tying string guide as the driving motor rotates reversely;
• and
• a tying string twister (600) receiving a rotational force from the driving motor to twist both ends of the tying string cut by the tying string cutter, wherein the rotational tying string guide (400) includes the rotating gear (420), the rotating gear (420) including a guide structure (410) which is an opening for positioning the crop, bundle, or bundled product inside the rotating gear, wherein a fastening slot (421) and a rotating slot (421′) are formed on the rotating gear in a direction opposite to the guide structure, and wherein when the crop, bundle, or bundled product is positioned in the guide structure (410), the fastening slot (421) and rotating slot (421′) of the rotating gear (420) rotate around the crop, bundle, or bundled product while biting the tying string, thereby tying the crop, bundle, or bundled product.