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Bridge Auto Correction and Tension Devive
- Product Details
-
Product Overview
A corrugator bridge stores and transports single face corrugated webs between upstream production and downstream combining processes. During storage and transfer, the web can drift laterally, wrinkle or enter the next section with uneven tension. These conditions can cause poor alignment during laminating, increase trim loss and require repeated operator intervention.
This system combines web guiding and tension control in one bridge mounted assembly. The guiding section detects the web position without contact and moves the correction mechanism to maintain the selected reference. Depending on the ordered configuration, the operator can use center guiding or edge guiding. The tension section regulates drag on the moving web and includes threading assistance for web loading. The available configurations differ in working width, rated speed, tension control method and electrical components; select the configuration that matches the corrugator layout and number of board plies.
Technical Specifications
Parameter
2500 mm reference configuration
1800 mm five ply configuration
Configuration identity
No official model code stated in source
No official model code stated in source
Application
Corrugated bridge web guiding and tension control
Conveying bridge of a five ply corrugating line
Effective or working width
2500 mm
1800 mm
Design speed
250 m/min
Not stated
Rated working or suitable speed
220 m/min working speed
Maximum 300 m/min
Guiding accuracy
Not stated
Plus or minus 2 mm
Guiding range
Not stated
Plus or minus 60 mm
Position detection
SR full width infrared LED light curtain
AN6562 full width digital infrared sensor
Guiding modes
Center and edge guiding
Center and edge guiding
Control mode
Continuous closed loop control
Continuous closed loop control
Tension regulation
Manual pressure regulating valve
Automatic proportional valve
Working Principle
- A full width infrared detector or light curtain continuously reads the lateral position of the single face corrugated web.
- The controller compares the measured position with the selected center or edge reference.
- When the web moves away from the reference, the controller drives the transverse correction mechanism to restore alignment while the line continues to run.
- The tension section applies controlled resistance through the roller assembly. The 2500 mm reference configuration uses manual pressure regulation, while the 1800 mm five ply configuration uses automatic proportional valve control.
- An auxiliary threading motor assists web loading. A paper pass switch releases tension when a splice or connector passes through the unit.
Main Functions
Non contact detection of single face corrugated web position
Continuous closed loop lateral correction during production
Center guiding and edge guiding modes, subject to ordered control configuration
Stable web tension for downstream feeding and combining
Automatic or manually regulated tension control according to configuration
Auxiliary motor for threading a new web through the machine
Tension release when a splice or connector passes the paper pass switch
Automatic adaptation to normal web width changes within the detector coverage, without mechanical sensor repositioning
Product Advantages
Reduces lateral web drift before the downstream gluing and combining section
Helps maintain consistent alignment between multiple single face webs and the liner
Reduces routine manual correction during continuous production
Supports stable web travel when speed, roll diameter or bridge storage conditions change
Uses non contact infrared detection to avoid marking or mechanically loading the corrugated web
Supports continuous operation through closed loop position control
Provides threading assistance and splice pass tension release for faster, safer web handling
Can be configured for different corrugator widths and ply structures after application review
Applications
Corrugated cardboard production lines with overhead bridge storage
Three ply, five ply or seven ply corrugators after confirmation of the required number of guiding channels
Single face web alignment before preheating, gluing or final combining
New corrugator installations and bridge section upgradesLines that require center guiding, edge guiding or selectable guiding modes
- A full width infrared detector or light curtain continuously reads the lateral position of the single face corrugated web.
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