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7-MOLD 7-PUNCH Cold Forming Machine

A cold former is a vital tool for fastener manufacturers, offering high production rates, precision, and cost-effectiveness. By investing in a cold former, companies can significantly enhance their production capabilities, ensuring they meet the demands of various industries with high-quality, consistent fasteners. Regular maintenance, proper training, and adherence to safety standards are key to maximizing the benefits of these machines.

Understanding the work principle of a bolt former is crucial for appreciating its efficiency and precision in manufacturing bolts and other fasteners.

Frame and Base

• Material: High-strength steel or cast iron.

• Design: Robust and rigid to withstand high forces and vibrations.

• Mounting: Vibration dampening feet or rubber mounts to isolate the machine from the floor.

Material Feeding System

• Coil Feeder:

• Capacity: Designed to hold large coils of wire or rod.

• Tension Control: Ensures consistent feeding without over-tensioning the material.

• Straightener:

• Rollers: Multiple pairs of rollers that straighten the wire.

• Adjustment: Adjustable rollers to accommodate different wire diameters.

Cutting System

• Shear Cutter:

• Blades: High-quality, durable blades that can withstand repeated cutting.

• Actuation: Hydraulic or mechanical actuation with precise control.

• Length Control:

• Encoder: Measures the length of the wire accurately.

• Sensor: Detects the end of the wire and signals the cutter.

Forming System

• Dies and Punches:

• Materials: High-grade tool steel for durability and precision.

• Design: Custom-designed for specific bolt sizes and shapes.

• Hydraulic System:

• Cylinders: Provide the high pressure needed for forming.

• Pumps and Valves: Control the flow and pressure of hydraulic fluid.

• Mechanical System:

• Presses: Driven by electric motors and gearboxes.

• Linkages: Transmit force from the motor to the forming tools.

Threading System

• Roll Threading Unit:

• Rolls: High-pressure rolls that deform the metal to form threads.

• Actuation: Hydraulic or mechanical actuation.

• Cut Threading Unit:

• Cutting Tool: Precision-cutting tool that removes material to form threads.

• Feed Mechanism: Controlled feed rate to ensure accurate threading.

Ejection and Collection System

• Part Ejector:

• Mechanism: Pneumatic or mechanical ejection.

• Timing: Precise timing to ensure the part is ejected without damage.

• Conveyor:

• Type: Belt or chain conveyor.

• Speed Control: Variable speed control to match the production rate.

Control System

• PLC:

• Programming: Customizable programs for different bolt sizes and shapes.

• Monitoring: Real-time monitoring of machine status and performance.

• CNC:

• Advanced Programming: Complex operations and customization.

• User Interface: Intuitive HMI for easy operation and diagnostics.

Safety Features

• Guards and Shields:

• Material: Transparent polycarbonate or metal.

• Design: Easy to open and close for maintenance.

• Emergency Stop Buttons:

• Placement: Strategically placed for quick access.

• Function: Immediate stop of all machine operations.

• Interlocks:

• Sensors: Detect the position of safety guards.

• Control: Prevents machine operation if guards are not in place.

Lubrication System

• Automatic Lubrication:

• Pumps: Distribute lubricant to critical points.

• Timers: Control the frequency of lubrication.

• Lubricant Reservoir:

• Capacity: Adequate to last for extended periods.

• Filter: Ensures clean lubricant is delivered to the machine.