To ensure the safe and efficient operation of straight thread rolling machines, it’s crucial to follow these comprehensive procedures:
Worker Training and Certification: All operators must complete technical training and pass a skill assessment before using straight thread rolling machines. Teams should be comprised of fixed personnel to ensure consistency and safety in operations.
Equipment Debugging and Testing: Before starting formal production, thoroughly debug and test the equipment. Production should only commence once all equipment is confirmed to be functioning correctly.
Steel Bar Cutting: Ensure that the end face of the steel bar is perpendicular to its axis, free from imperfections such as horseshoe shapes or arches. If the end is not straight, straighten it before cutting.
Steel Bar Head Roughening: Roughen the steel bar head before threading. Reset the roughening machine to zero before starting and ensure the steel bar is correctly inserted and tightened to reserve the proper length in the roughening section. Discard and re-roughen any unqualified roughened heads; avoid roughening the same head more than once.
Quality and Safety Checks: Inspect the roughening section for any transverse cracks. Use threading methods for processing threads and apply water-soluble cutting fluid. In temperatures below 0°C, take anti-freezing measures and avoid adding cutting fluid during thread processing.
Pre-Shift Equipment Check: Before each shift, run the machine empty to check its condition, including the normal rotation of the machine head, the adequacy of cutting fluid, electrical switch sensitivity, screw tightness, and the motor and reducer’s normal sounds.
Timely Maintenance: Address any equipment failures immediately. Do not operate malfunctioning equipment. Perform maintenance on high-pressure oil pumps indoors in a dust-free environment and prevent contamination of the oil system.
Post-Shift Maintenance: After each shift, clean iron filings from the pier head, fixtures, and molds. Clean the machine head and table, replace cutting fluid as needed, and lubricate the guide rod and rotating parts.
Training and Authorized Personnel: Only trained personnel are authorized to operate the equipment. Electrical faults should be addressed by qualified electricians only.
Personal Protective Equipment (PPE): Operators must wear safety helmets on-site. When operating threading machines, gloves are prohibited, and sleeves should be tightly secured with buttons fastened.
Compliance with Regulations: Adhere to all safety management regulations and site-specific rules.
Regular Safety Education: Project leaders should conduct regular safety education sessions to enhance safety awareness and inspect for potential hazards.
By adhering to these procedures, the operation of straight thread rolling machines will be carried out safely and effectively, minimizing risks and ensuring a secure working environment.
