Slitting line

1. Introduction

This unit is a special equipment specially designed for round steel plate coils, which are divided into many strips by the circular blade of the disc cutter, and then automatically coiled into the original shape. The mechanical equipment, cutting process, operating system and accessories are described as follows:

2. General description

1. Raw material specifications:

1. Material: Q195, Q215, Q235 cold rolled plain sheet, galvanized sheet
2. Thickness: 0.3mm~2.5mm
3. Width: 800mm
4. Outer diameter: Φ1500mm
5. Inner diameter: Φ508mm.
6. Volume weight: ≤10t

2. Finished product specifications

1. Form: Q195, Q215, Q235 cold-rolled plain sheet, galvanized sheet and coil.

2.Thickness: 0.3mm~2.5mm

3. Inner diameter: Φ508mm

3. Main technical performance and parameters

1. The speed of the unit: 100m/min (overclocking can increase the speed)

2. Cutting method: passive cutting

3. The elevation of the unit: 900mm

4. The total capacity of the unit: 160kW

5. Feeding direction: to be determined

4. Technical process

Rolling trolley and saddle → uncoiler, pressure roller → vertical roller guide device → disc cutter → fixed separation and tension device → coiling machine → unloading trolley

5. The main equipment composition

6. Description of main machinery and equipment

1. Roll up trolley and saddle

1. Usage: The saddle is used to store the raw material coil; the coiling trolley is to send the steel coil to be slit to the decoiler.
2. Structural description: The trolley is a welded steel structure, which consists of two parts: a lifting saddle and a horizontally moving trolley. The saddle is formed by fixing a V-shaped seat on the top of the frame. The lifting saddle is a four-post guide rod type, and the saddle is lifted by an oil cylinder. The oil cylinder is fixed on the frame, and pressure oil is provided by a high-pressure hose attached to the towline. The traversing trolley is a steel structure, and the car body is equipped with 4 wheels. The trolley is driven by a hydraulic motor and walks along two steel rails fixed on the foundation.The main body of the saddle is a welded steel structure, and the saddle is installed on the foundation to form a seam.
3. Technical performance:

• Type: 400 hydraulic motor driving, hydraulic cylinder lifting
• Bearing capacity: ≤10t
• Lifting hydraulic cylinder: 1
• Car drive: Model 400 hydraulic motor

2. Uncoiler, pressure roller

1. Purpose: The decoiler supports the coil to be slit, and rotates and unfolds for slitting processing.
2. Structure description: The decoiler is mainly composed of reel, box, transmission device, braking device, etc. The reel of the decoiler is a fan-shaped plate. The decoiler is supported by two bearings on the box. One end of it is a reel that can be expanded and contracted, and the other end is connected to a expansion and contraction hydraulic cylinder. , Drives the inclined expansion and contraction sleeve to move axially, and drives the fan-shaped plate matched with the expansion and contraction sliding sleeve to move radially to complete the expansion and contraction of the diameter of the reel.The pressure roller of the uncoiler is used to hold down the coil at the beginning.The pressure roller of the decoiler is composed of a swing arm and a hydraulic cylinder frame. The swing arm is a welded part, the pressure roller is placed on it, and the swing arm is connected to the frame placed on the foundation through a bushing bearing. The hydraulic cylinder trunnion bracket is installed on the frame on the foundation. The piston rod end is hinged with the swing arm. Through the expansion and contraction of the piston rod of the hydraulic cylinder, the swing arm is driven to swing to realize the pressing and lifting of the pressing roller. In order to increase the rigidity of the unwinding shaft, an auxiliary support is provided on the non-drive side of the unwinding shaft.
3. Technical performance:

• Adapt to strip width: 850mm
• Adapt to the inner diameter of steel coil: Φ508mm
• Adapt to the outer diameter of steel coil: Φ1600mm
• Induction motor: 400 type motor 1 set
• Hydraulic cylinder:2
• Adapt to roll weight: ≤10t

3. Open hydraulic shears

1. Usage: This machine is used to cut the head and tail of the irregular steel strip, and it also has the function of subcontracting.
2. Structure description: This machine is hydraulic shearing machine.
3. Technical performance:

• Maximum cutting thickness: 0.3~2.5mm
• The effective cutting edge length is: 900mm
• Cutting blade material: cr12mov
• Walking power: 400 hydraulic motor driven walking
• Hydraulic cylinder: 1