Product Overview
Automatic Turret Roll-Change Equipment is the winding section used in continuous slitting and rewinding lines to transfer production from a completed roll to a prepared winding position. The turret rotates the winding positions through a controlled changeover sequence while winding speed and web tension remain coordinated.
The configuration is determined by material type, web thickness, working width, finished-roll diameter, core diameter, roll weight, winding tension and required line speed.
Automatic Roll-Change System
A two-position turret configuration allows one position to complete the active roll while the next position is prepared for the following winding cycle.
Turret movement, winding speed and web handling are coordinated during roll changeover. The sequence is set according to finished-roll dimensions and material characteristics.
New cores are prepared before changeover. Core diameter, winding width and core arrangement are matched to the finished-roll specification.
Key Features
Automatic Changeover
The roll-change cycle is controlled through the machine operating system, reducing routine manual intervention during finished-roll replacement.
Servo Drive Control
Servo-controlled winding and turret movement provide coordinated speed and position control during normal running and roll transfer.
Tension Regulation
Adjustable web tension supports stable winding conditions across different material thicknesses, stiffness levels and surface characteristics.
Recipe Management
Operating parameters can be stored in the HMI for repeat production involving the same material and finished-roll format.
Winding and Tension Control
Roll Density
Winding tension affects the compactness and internal structure of the finished roll. The setting is adjusted according to material, roll diameter and winding requirements.
Edge Alignment
Web guiding and controlled winding movement help maintain consistent roll edges throughout the winding cycle.
Changeover Control
Winding speed, web tension and turret position are coordinated during transfer to maintain the defined winding condition.
Application Materials
Paper
The configuration can process kraft paper, coated paper, packaging paper, labelstock and other paper webs within the selected machine range.
Film
Plastic films, laminated films and other flexible webs can be processed when the tension and winding parameters match the material structure.
Foil
Aluminium foil requires controlled tension and accurate web handling because thickness and mechanical properties directly affect winding behaviour.
Flexible Packaging
The system can be integrated into packaging-material slitting lines producing multiple finished rolls from a parent roll.
Technical Parameters
|
Technical Parameter |
Reference Configuration & Typical Values |
|
Winding Positions |
2 positions (Dual-shaft turret structure) |
|
Roll-Change Mode |
Automatic high-speed transfer |
|
Control System |
1 PLC + 1 Color HMI Touch Screen |
|
Drive System |
Full Servo Drive Control |
|
Winding Mode |
Continuous turret center/surface winding |
|
Working Width |
1000 mm – 2000 mm (Customizable) |
|
Material Thickness |
12 μm – 500 μm (Depending on material) |
|
Finished Roll Diameter |
Max. 600 mm / 800 mm |
|
Core Diameter |
3 inches (76 mm) / 6 inches (152 mm) |
|
Finished Roll Weight |
Max. 300 kg / 500 kg |
|
Line Speed |
Up to 400 m/min – 600 m/min |
|
Winding Tension |
Servo closed-loop automatic tension regulation |
Selection Criteria
Material
Material thickness, tensile strength, stiffness, friction characteristics and web width determine the required tension range and winding configuration.
Finished Roll
Finished-roll diameter, width, core diameter and weight affect the winding position, shaft arrangement and unloading configuration.
Production Rate
Required line speed and roll-change frequency determine the response requirements for the winding drive, turret movement and tension system.
Line Interface
Existing unwinding, slitting, web guiding, tension control, drive and electrical interfaces should be reviewed before final machine integration.
Production Process
Web Slitting
The parent roll enters the slitting section and is divided into the specified finished widths.
Tension Control
The slit webs pass through the guiding and tension-control sections before entering the winding unit.
Turret Changeover
When the active roll reaches its programmed condition, the prepared winding position moves into production through the automatic turret sequence.
Finished Roll
The completed roll is transferred to the designated unloading position while the next winding cycle starts.
Suitable Production Requirements
The turret arrangement is suited to production where finished rolls reach their target diameter regularly and automatic transfer is required between winding cycles.
Several slit webs can be wound simultaneously according to the configured winding layout, finished-roll width and core arrangement.
The configuration fits converting lines where controlled web handling and repeatable automatic roll-change sequences are required during extended production runs.
Configuration Information
Material Data
Provide material type, thickness, width, tensile characteristics and surface condition.
Roll Data
Specify parent-roll diameter and width, finished-roll diameter and width, core diameter and maximum roll weight.
Production Data
Provide required line speed, slit-width range, winding tension and expected roll-change frequency.
Interface Data
Existing machine layout, web direction, drive configuration, control signals and unloading arrangement should be confirmed before final engineering.
FAQ
Q: What is automatic turret roll change?
A: It is a winding arrangement that uses rotating winding positions to transfer production from a completed roll to a prepared core through a controlled automatic sequence.
Q: What materials can the equipment process?
A: The configuration can be evaluated for paper, film, foil, labelstock and flexible packaging webs according to material properties, web dimensions and winding requirements.
Q: How many winding positions are used?
A: The reference configuration uses 2 winding positions. The final turret arrangement is confirmed according to the required roll-change sequence and machine configuration.
Q: What information is needed for equipment selection?
A: Material thickness, working width, parent-roll dimensions, finished-roll dimensions, core diameter, roll weight, line speed and winding tension are the main technical inputs.
Q: Can the equipment be integrated into an existing slitting line?
A: Integration can be engineered around the existing web path, drive system, tension control, electrical interface and available installation space.
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