Equipment name: Copper strip longitudinal cutting unit

Specification and model: 2.0~7 0×400～650（mm）

preface

This longitudinal cutting unit is mainly used for longitudinal trimming or slitting of annealed copper and copper alloy plates and strips. Its components mainly include storage platform, feeding trolley, floating unwinding machine, paper receiving machine, CPC centering device, traction straight head cross cutting machine, guide platform, laminating device, disc cutter, quick tool changing device, edge crushing cutter (including waste collection trolley), loop device, tension platform (including seven roll leveling), coiler, unloading trolley (with pressure arm), cross unloader, winding auxiliary support, paper pad machine, hydraulic system, pneumatic system, electrical control system, accessories and random spare parts.

The seller guarantees that the equipment delivered to the buyer is brand new, functionally qualified, and material qualified, capable of meeting the buyer's stable production and long-term operation requirements, and ensuring that the structure, performance, parameters, and other indicators of this equipment fully meet the technical requirements of this agreement.

Attachment 1: Technical Description and Parameters

1、 Main production technology requirements

1. Main technical parameters

1.2 Process flow

Storage → Loading trolley → Unwinding (paper delivery) → Pinching → Cutting head → Guiding → Film covering → Longitudinal cutting and slitting → Edge wire breakage (chip removal) → Active sleeve → Tensioning (seven roll straightening, tail cutting) → Winding (lining paper) → Unloading trolley (cross arm) for unloading.

The cold-rolled and annealed strip coil is lifted by the workshop crane to the storage saddle, and the trolley transports the strip coil to the correct position on the unwinding machine shaft to assist in lifting;

The unwinding machine is an upper unwinding machine, which uses surface driven pressure rollers to rotate with the unwinding drum to unwind the strip material. The strip material enters the straightening machine of the traction machine through the material receiving plate, and the traction driven strip material is straightened by three rollers and enters the cutting head shear. The irregular head is cut off, and the cut material head will automatically fall into the waste material cart, which is manually emptied regularly;

After completing the cutting of the material, it continues to be fed forward. At this time, it passes through the material receiving platform and is fed into the disc cutting front guide device, entering the longitudinal cutting machine body. Start the longitudinal cutting, jog the longitudinal cutting strip, and guide the edge wire material head to the feeding port of the edge crusher. The finished strip material after slitting passes through the outlet sleeve material receiving plate to the hydraulic material receiving plate in front of the tension table, and then passes through the front distributor, tension device, seven rollers for leveling, reversing roller, lifting the winding movable distributor, feeding the strip material into the drum clamp, and then start the winding machine to rotate. Lower the blocking material distributor, and after the strip material wraps around the clamp, the unit can switch to linked operation and speed up for normal operation. The coiling machine adopts the downward coiling direction;

After the winding is completed, start the tail cutting machine to cut off the tail material, manually stick the material head, and transport the coil from the unloading trolley to the cross unloading arm for unloading, entering the packaging and next process.

1.3 Environmental Protection

The environmental indicators such as dust and noise of this unit are implemented in accordance with the relevant laws and regulations of the People's Republic of China on environmental protection.

1.4 Installation level

1) In response to the quality requirements of precision copper strips, the longitudinal cutting machine equipment has high precision, and the end face runout and axial clearance of the blade shaft are both below 0.008mm;

2) The tension mechanism adopts a pressure plate type tensioning method and is designed with a fast and automatic felt replacement device;

3) The vertical scissor shaft bearing adopts the NSK/P4 high-precision series, and the lubrication is automatic centralized lubrication;

4) The lifting and lowering of the blade shaft on both sides of the longitudinal cutting machine are adjusted by servo motors, and the cutting amount is detected by a grating ruler. The human-machine interface can display and adjust the gap between the left and right sides;

5) The secondary operation console for unwinding and unwinding is equipped with a human-machine interface computer for operation;

6) The unit is equipped with an industrial control computer and has the function of storing main working parameters;

7) High control accuracy, simple operation, interlocking actions to ensure the safety of operators;

8) The unit is wrapped with polyurethane rubber for roller protection of the board surface;

9) The main power of each individual machine adopts AC variable frequency control, which has low maintenance costs;

10) Unit unwinding, constant tension winding, and constant linear speed control;

11) Automatic alarm function for oil temperature, liquid level, cooling, and overload.

12) Automatic prompt function for unit linkage conditions;

13) Unit process monitoring screen function;

14) Data setting, display, and storage functions;

15) A comprehensive unit safety system;

16) Reserve secondary network interfaces for the unit's electrical control system.

2. Composition of each individual unit in the crew

The entire unit consists of a storage platform, a feeding trolley, a floating unwinding machine, a paper receiving machine, a CPC centering device, a traction straight head cross cutting machine, a guide platform, a film covering device, a disc cutter, a quick tool changing device, a broken edge cutter, a loop device, a tension platform, a winding machine, a unloading trolley, a cross unloading machine, a winding auxiliary support, a paper pad machine, a hydraulic system, a pneumatic system, an electrical control system, etc.