1. Intelligent Control System
Core Control Unit
PLC: Siemens S7-series programmable logic controller, providing stable and reliable logic control for the entire machine's operation.
Touchscreen: Siemens 10-inch HMI with intuitive graphical interface for easy parameter setup, real-time monitoring, and fault diagnosis Drive Control Frequency Converter: Wecon stepless variable frequency drive, enabling smooth speed adjustment from 0-180 m/min.
Encoder System: High-resolution rotary encoder for precise length measurement and speed feedback.
2. Precision Tension Management
Automatic Tension System
Tension Controller: Sino-US joint venture digital tension controller with PID algorithm for closed-loop control
Detection Method: Floating roller tension detection with precision load cells.
Damping System: Pneumatic tension damping cylinders (Airtac) for shock absorption during acceleration/deceleration.
3. High-Performance Mechanical Components
Cutting System
Upper Knives: 16 pcs high-carbon steel circular blades, hardness HRC58-62.
Lower Shaft: Chromium-plated steel shaft with precision ground surface.
Blade Adjustment: Micro-adjustment mechanism with 0.1mm precision scale.
Bearing & Transmission
Main Bearings: NSK deep groove ball bearings (6200/6300 series) for main shafts.
Gears: High-precision ground gears (Grade 6) with surface hardening treatment.
Shafts: Induction-hardened steel shafts with runout tolerance <0.02mm.
4. Coreless Rewinding Mechanism
Expanding Shaft System
Air Shaft: 3-inch diameter with polyurethane expanding elements.
Expansion Range: 70-85mm adjustable for different coreless roll requirements.
Pressure Control: Regulated air pressure system (0.4-0.6MPa) with Airtac pressure gauge.
Guide System
Banana Roller: Aluminum alloy convex roller with polyurethane coating.
Adjustment Range: ±15° angle adjustment for optimal web spreading.
Surface Finish: Mirror-polished surface (Ra≤0.8μm) to prevent marking. 5. Auxiliary Systems
Web Guiding & Measurement
Edge Guide: Pneumatic edge guiding system with infrared sensors.
Length Counter: 7-digit electronic counter with batch preset function.
Marking Device: Pneumatic inkless marking system with adjustable interval (1-9999m).
Waste Management
Waste Removal: Centrifugal fan system (2.2kW) with PVC suction pipes.
Collection Bag: 50L capacity dust collection bag with quick-release clamp.
Safety Features
Emergency Stop: Dual emergency stop buttons at operator stations.
Protective Guards: Interlocked safety doors with magnetic switches.
Overload Protection: Electronic torque limiter and mechanical shear pin protection.
6. Structural Foundation
Frame Construction
Material: Grade HT250 cast iron with ribbed reinforcement design.
all Thickness: Main wall 25mm, reinforcement ribs 15mm.
Surface Treatment: Sandblasting + epoxy primer + baking finish.
Base Design
Dimensions: 1800×1500mm welded steel base with leveling pads.
Weight Distribution: Low center of gravity design (1450mm height).
Anti-vibration: Rubber-damped motor mounts and isolation pads.
7. Electrical System
Power Distribution
Main Circuit: 3PH 380V/50Hz with main circuit breaker (32A).
Control Circuit: 24VDC isolated control power supply.
Wiring Standards: CE-compliant wiring with cable channels and labeling.
Sensors & Switches
Proximity Sensors: Omron NPN-type for position detection.
Limit Switches: Waterproof mechanical limit switches.
Push Buttons: Airtac illuminated buttons with IP65 rating. 8. Standard Accessories Package
Tool Kit
Special Tools: Blade mounting tools, shaft extractors, tension gauges.
Maintenance Tools: Complete set of hex keys, spanners (8-24mm), torque wrench.
Spare Parts
Consumables: 5 sets of upper/lower blades, 9 pcs mounting rings.
Hardware: 6 pcs machine leveling blocks, spare fuses, relay set.
Documentation
Technical Manuals: Multi-language operation manual (EN/ES/FR/RU).
Certificates: Factory test report, electrical schematic diagrams.
Training Materials: Video tutorials and maintenance checklist.
9. Optional Upgrades
Advanced Options
Web Inspection System: CCD camera for defect detection.
Automatic Unwinding: Motorized unwinding stand with tension control.
Data Logging: Ethernet connectivity for production data collection.
Dust Extraction: Integrated dust collection system with HEPA filter.
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