Rewinding Inspection Machine
Description
The DBJP-400 Inspection Machine is designed for efficient rewinding and quality inspection of roll materials, featuring a single-station shaftless hydraulic unwinding and rewinding structure suitable for rolls up to 800mm in diameter and 1500kg in weight. Driven by a servo-controlled traction and rewinding system, it ensures stable web transport and precise tension control throughout operation. An integrated EPC web guiding system with ±50mm correction accuracy maintains consistent alignment, while aluminum guide rollers enable smooth, damage-free feeding. The machine is managed by a Siemens PLC with a full-color touch screen, offering automatic tension control, length counting, residual material detection, and preset stop functions. Built with a rigid steel frame and equipped with high-quality electrical components, the DBJP-400 delivers reliable performance, easy operation, and high inspection efficiency for industrial production environments.
Parameters
| Cutting speed |
10-300m/min |
| Maximum material width |
50-1100mm |
| Edge trimming | Not included by default, please contact the manufacturer |
| Rewind function | Default includes rewind function |
| Material receiving platform | One front and one back, pneumatic material receiving platform |
| Maximum unwinding diameter |
800mm |
| Maximum winding diameter |
800mm |
| Correction method | Optoelectronic or ultrasonic tracking |
| Tension control method | PLC control |
| Total power (KW) |
13KW |
| Machine weight | About 2100kg |
| Machine dimensions (mm) length x width x height | 3400×2850×2100mm |
| Working Voltage | Three box 380V |
Feature
1. Unwinding Unit
• Single-station unwinding structure with heavy-duty steel frame support.
• Shaftless hydraulic automatic loading, suitable for rolls up to 800mm diameter and 1500kg weight.
• Compatible with 3-inch core as standard; optional 6-inch core available.
• Motor-controlled unwinding with hydraulic up/down loading system.
• Integrated EPC system (Bat Technology) ensures accurate web alignment with ±50mm correction range.
• Aluminum guide rollers with optimized width ensure smooth web feeding.
• Pneumatic splicing platform with cylinder pressing for fast and convenient material changeover.
2. Traction & Transmission Unit
• Rigid machine structure made of high-quality steel plates (30–35mm thickness).
• Servo motor driven traction system ensures stable and precise material transport.
• Active traction with pneumatic pressing design for consistent web tension.
• Rubber pressure rollers combined with chrome-plated steel drive rollers for smooth, non-slip conveying.
• Pneumatic cylinder-controlled pressing system improves operational stability.
3. Rewinding Unit
• Shaftless hydraulic rewinding structure for efficient and safe roll handling.
• Servo motor driven rewinding system provides accurate tension control.
• Single rewinding station supports roll diameter up to 800mm.
• Standard 3-inch rewinding core; optional 6-inch core supported.
• Aluminum guide rollers ensure neat and even rewinding.
4. Intelligent Control System
• Centralized PLC control system with Siemens PLC for high precision and reliability.
• Full-color touch screen interface provides clear visualization and easy operation.
• Automatic tension control for both unwinding and rewinding processes.
• Integrated functions include:
– Residual material detection with automatic stop
– Total length and roll diameter display
– Working length counting
– Preset length auto deceleration and stop
• Operator-friendly parameter input: material thickness, width, density, diameter, and speed are automatically calculated by the system.
5. High-Quality Electrical & Mechanical Configuration
• Servo motors from Danma (Shanghai) and inverters from Bosch (Germany) ensure stable performance.
• EPC correction system supplied by Bat Technology for precise edge alignment.
• Aluminum guide rollers with hard anodized surface treatment improve durability.
• Schneider low-voltage electrical components enhance safety and reliability.
• Siemens modules and encoder ensure accurate signal feedback and system response.
6. Power Supply
• Three-phase 380V power supply, suitable for industrial production environments.
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