Annealing and drawing device for oxygen-free copper tube used for mobile phone heat pipe with large diameter-wall thickness ratio

An annealing and drawing device for an oxygen-free copper tube used for a mobile phone heat pipe with a large diameter-wall thickness ratio, comprising a box body, wherein a drawing die is installed inside the box body at a middle of the box body, an annealing tube is installed between the drawing die and an inner wall of the box body, an induction heating wire is wound around the annealing tube, a fixing plate is disposed on a side of the drawing die away from the annealing tube, the fixing plate is installed at a bottom end of the box body, and a supporting roller is rotatably connected to the fixing plate;

• a tension adjusting mechanism is disposed on a side of the supporting roller away from the drawing die, an outer side of an end of the box body close to the tension adjusting mechanism is provided with a mounting plate, and the mounting plate is mounted on the ground;
• a supporting frame is fixed on a side of an upper end of the mounting plate, a servo motor is fixed at an upper end of the supporting frame, and a rotating shaft is fixed at an end of an output shaft of the servo motor;
• the rotating shaft is in key joint with a winding wheel, and an end of the rotating shaft away from the servo motor is provided with a supporting mechanism,
• wherein the tension adjusting mechanism comprises a mounting block, the mounting block is fixed inside the box body at the bottom end of the box body, and four supporting rods are fixed at four upper corners of the mounting block, respectively;
• two connecting blocks are disposed such that one of the two connecting blocks is provided between two of the four supporting rods at a same side and another one of the two connecting blocks is provided between the remaining two of the four supporting rods;
• an adjusting roller is rotatably connected between the two connecting blocks, an upper end of each connecting block is in threaded connection with a connecting bolt, an upper end of the connecting bolt passes through a push plate, an outer side of the connecting bolt is sleeved with a spring, the spring is located between the push plate and the connecting block, a middle of the push plate is rotatably connected with a lead screw through a bearing, an outer side of the lead screw is in threaded transmission connection with a transmission nut, and the transmission nut is embedded in a top end of the box body;
• wherein both sides of the connecting block are provided with sliding blocks respectively, the sliding blocks slide in sliding grooves, and the sliding grooves are disposed on the supporting rods.