Cutted can body tinplate automatic placed all over body forming device of the resistance welding machine, the vacuum feeder line will be sent one by one to the feeding roller, The tinplate slab through the feed roller to the deflection roller bending processing, then roll into the forming device into cylindrical body, body is fed into the resistance welding machine, After welding, the cans body is automatically sent to the material receiving frame of the welding line coating machine. There are two schemes for users to choose, spray type and roll coating type, which are mainly used to prevent the welding seam from contacting the air and causing rust.
When the can body is transported to the conical pail can body combination machine, and the cans body is in an upright state through the vertical tank device, and the screw moves back and forth, screw reciprocating.. The first operation is cans body expanding. When the cans reaches the place, the cans tray is controlled by the servo motor and the cans is fed into the expanding mold. The second process is pre-flanging The third process is curling. The upper flanging mold fixed on the machines, the lower mold in the cam under the action of the cans hold up the flanging and curling. The fourth process of expansion tendons. After completing the above four processes, the conveyor belt will send the can body to the sealing machine for sealing process.After the sealing is finished, it is pushed out to the automatic double-head spot welding machine, and through the automatic welding seam welding detection device, CAM conveyor belt transmission, mechanical broken paint, and equipped with automatic lug vibration plate, to complete the precise spot welding on the pails.