Nylon tube automatic thermoforming apparatus and forming process

A nylon tube automatic thermoforming apparatus, comprising a main body, a conveying assembly, a heating assembly and a tube bending assembly, wherein, the heating assembly comprises an oven communicated with the conveying assembly and an electrically heated cylinder arranged between the oven and the tube bending assembly,

• a heating coil is arranged in the electrically heated cylinder, a nylon tube is conveyed from the conveying assembly and enters the tube bending assembly via the oven and the heating coil, the electrically heated cylinder and the tube bending assembly are arranged outside the main body, and an air cooling system and a cut-off device are arranged outside the tube bending assembly,
• wherein the tube bending assembly, which is arranged at an end of the electrically heated cylinder away from the main body, comprises a curved wheel component rotatably connected to the electrically heated cylinder, a first driving component driving the curved wheel component to rotate, an elbow component rotatably connected to the curved wheel component, and a second driving component driving the elbow component to rotate relative to the curved wheel component;
• the curved wheel component comprises a rectangular block, a sector block, a limiting block that are integrally connected together, the sector block is arranged at a first side of the rectangular block, the limiting block is arranged at a second side of the rectangular block, a bending groove is defined on the sector block along an arc surface, two ends of the bending groove extend to two surfaces of the rectangular block and penetrate through the rectangular block, a matching groove is defined on one side of the limiting block toward the rectangular block, the matching groove and a limiting groove are snap-fitted to form a circular channel, one end of the circular channel away from the sector block directly faces an outlet of the electrically heated cylinder, and is rotationally connected centering about a central axis of the circular channel, and a rotational circle center of the elbow assembly coincides with a circle center of a sector surface of the sector block.