Copper Screening Line 300/72: Advanced Technology for Precision Screening

300/72 bobbins stranding cage with electric cover

4.2.1 Bobbin size in main cage: PN315

4.2.2 Motor power: 55kw (AC variable frequency motor)

4.2.3 Protection form: double wall type cover

4.2.4 The main box of the twisting cage adopts a motor direct drive reduction box, equipped with electronic control forward and reverse gear switching, an external independent motor oil supply system, and a hard tooth surface grinding gear box for the gears. The main shaft has a large aperture, and the overall bearing capacity of the box is large.

4.2.5 The twisting cage is driven by an AC variable frequency motor, and through PLC calculation, it can ensure stable pitch when 72 single-layer twists are twisted

4.2.6 The front bracket adopts a super large bearing seat, which is made of an integral lost foam casting process with no deformation, high bearing capacity, and smooth operation

4.2.7 The spindle adopts: a seamless thick walled tube with a whole center, which is processed with double top points on a large lathe, and has high concentricity,

4.2.8 The flat winch adopts Q235 thick steel plate CNC cutting, with added process weight reducing holes to ensure the geometric strength of the large winch. After being annealed at 850 degrees Celsius to eliminate stress, it is processed by a large CNC vertical lathe and finally bored as a whole by a large CNC gantry machining center.

4.2.9 Winch connection method: Each winch is connected to the main shaft through a flange or expansion sleeve, with good overall stiffness, high coaxiality of the winch, and balanced operation of the winch cage

4.2.10 The winch cage is equipped with two brake devices, with the action point relying on the front and rear box self-aligning bearings and the large diameter main shaft. Two air pressure butterfly brake devices are left empty to ensure the combination of the overall bearing capacity and brake braking effect, achieving smooth and reliable operation and braking.

4.2.11 The installation method for the disc is as follows: a string rod type wire laying shaft is equipped with bearings inside, the wire laying is smooth, and the sliding block is rotated; The tension adopts mechanical belt friction, and the tension magnitude is manually adjusted; After the wire reel is pushed in and locked, it is stopped by a mechanical protection device, which is safe and reliable.

4.2.12 Contact ring type wire breakage parking device: installed with copper rings at the wire end of the main shaft of the winch, monitoring the wire breakage status of each wire reel through wire core contact, and feedback the signal to the terminal control system to achieve automatic shutdown, replacing manual monitoring and reducing labor intensity.

4.2.13 Wiring method: After the wire is released from the reel, it changes direction through the universal guide wheel group, and then travels along the main shaft to the distribution board; The shaft is equipped with a tension wheel, and the tension belt adjusts the tension, which can keep the tension of the core wire released on each shaft stable and balanced; All straight through wire holes are embedded with ceramic wire sleeves to protect the wire from scratches and scratches.

4.2.14 The distribution board is equipped with 76 wire distribution wire plate, which are used to collect wires at a smooth angle and achieve uniform twisting of multiple single layers

4.2.15 The host base adopts a whole welded base, which uses profiles and plates to connect geometric shapes. After welding, it is processed in one go by a large gantry milling machine, with high flatness.

4.2.16 The front support frame of the host has jog and emergency stop functions for easy operation.