Tube inserting device capable of producing degradable telescopic straws with different lengths

The utility model discloses a tube inserting device capable of producing degradable telescopic straws with different lengths, which comprises a main body, a first groove is arranged at the top end of the main body, a first crawler belt and a second crawler belt are respectively arranged at the first groove of the main body, a plurality of traction blocks are arranged outside the first crawler belt, and the second crawler belt is arranged outside the second crawler belt. A plurality of limiting blocks are arranged outside the second track, a bearing body is arranged in the middle of the top end of the second track, and a feeding box is arranged on one side of the main body. By rotating the second screw rod, the second screw rod slides in the first cavity of the bearing body through the connecting plate, so that the limiting distance of the pressing plate to outer pipes of suction pipes with different heights is adjusted, and then the second crawler belt intermittently drives the limiting block and the bearing