The direct untwisted wire drawing machine and the untwisted roving wire drawing machine are respectively composed of a winding head, a wire arrangement device, a wire arrangement and separation device, a barrel changing device, an oil mist lubrication device, a pneumatic device, a spray device, and a head brake device. The joint part between the head spindle and the head itself adopts a conical surface body gearing positioning to maintain the head rotation accuracy. The head structure is a centrifugal expansion block type, which consists of the head itself, an expansion block, an expansion block key, a pressure spring, a head front cover, and a head rear cover. The entire head is made of aluminum alloy and stainless steel plates. When the head is running at high speed, the expansion block supports the wire winding drum under the influence of centripetal force, and the fiber is wound on the surface of the wire winding drum. When the winding is completed and the head stops rotating, the centripetal force disappears and the expansion block falls freely to unload the drum. The movement of the spiral wire arrangement shaft of the wire drawing machine is divided into rotational movement and repetitive movement: the rotational movement is achieved by the wire arrangement motor according to the synchronous belt drive, and the repetitive movement is achieved by the servo motor according to the synchronous belt, the flip screw component, and the linear bearing drive. The stroke of reciprocating movement is between 50 and 200 mm, and the stroke of reciprocating movement can be adjusted by changing the position of the two limit sensors. The function of the wire arranging device of the untwisted roving wire drawing machine is to move the wire arranging device to the head position at the beginning of winding, and to gradually move the wire arranging device to the right with the increase of time and the thickness of the wire cake during the winding process, so that the distance between the wire arranging wire and the surface of the wire cake is consistent, thereby ensuring the consistency of the tension of the inner surface of the wire cake. The barrel changing device of the wire drawing machine is driven by the barrel changing motor and the cylinder to facilitate the rotation to the appropriate winding position. The motor drives the rotating frame rotor through the reduction gear and chain until the head position detection sensor detects the stop; then the rotating frame positioning cylinder is activated to rotate the rotating frame rotor to the specified position and firmly clamp the stop block to ensure the normal operation of the wire drawing operation. The pneumatic device of the direct untwisted wire drawing machine and the untwisted roving wire drawing machine consists of a gas pressure switch, a gas pressure regulating valve, a solenoid valve, an actuator cylinder and a pneumatic pipe. Electromagnetic energy consumption braking is a non-contact and frictionless braking. The braking torque is large and the operation is reliable. The DC power after the step-down rectification is input into the stator winding of the motor, thereby generating an electromagnetic torque opposite to the direction of rotation to achieve electromagnetic energy consumption braking. The spray devices in the wire drawing machine include wire drawing spray and head change spray. The wire drawing spray is to atomize the deionized water into droplets with a diameter of 5 to 10 μm, and then spray it along the nozzle in a tangential direction. The function of the spray device is to clean the wire drawing wire to prevent the wetting agent from forming a film on the wire drawing wire. The head change spray is to prevent the hair from falling onto the wound wire drum when changing the drum.
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