Web guiding controller function:






 






1. support three operation modes: edge-following, line-following and center-alignment.






2. support photoelectric sensor, ultrasonic transducer and CCD Sensor






3. detect sensor’s parameters intelligently, no need to correct the sensor under most circumstances






4. automatic travel measurement, no need to limit the switch mechanically.






5. no overshot integral variable PI algorithm, high accuracy, fast reaction and less error.

Tension control system






 






(1)     The menu function enables storage and reading of 4 types of operation data.






(2)     The optional memory cassette enables reading of operation data and writing of data in the other STC-858A tension controller.






(3)     The controller has a weak excitation function for powder clutch / powder brake.






This function will improve the torque rising operation in low-speed operation mode or during the initial start-up of machine.

Web Guide Control System for printing machine






Web guide system Product Features:






1. Brushless DC servo motor driving, maintenance free;






2. Accuracy ball screw bar and accuracy positioning;






3. With large guiding travel;






4. Roller length and width can be custom made;






5. Roller surface treatment can be anodized, rubber and cork leather;






6. Manual or air fixture of the cutting station is optional.















Model   No.





Roller Length L (mm)





Roller Dia. D(mm)





Roller Width C  (mm)





Slide Block Height B (mm)





Base Length Y (mm)





Web Guide range (degree¡ã)





Max.   Tension (N)









PG-200A





200





50





230





25





260





¡À17





300









PG-250A





250





50





230





25





260





¡À17





300









PG-300A





300





60





260





25





310





¡À17





300









PG-350A





350





60





260





25





360





¡À17





300









PG-400A





400





60





320





35





410





¡À17





500









PG-450A





450





60





320





35





460





¡À17





500









PG-500A





500





60





320





35





510





¡À17





500









PG-600A





600





60





320





35





610





¡À17





500

Quality and Quantity Assured Medical Mask and Mask Machine Use Deviation Control System Export





















All-In-One Web Guide Control System  PG Series Outline  :





Our Newly developed all-in-one web guide controller is applied to accurate correct the narrow range of materials. Especially for label printing, packaging and non-woven industries. All-in-one web guiding controller is with compact design, easy installation and saving space. Controller, driver and detector are integrated which help user to increase high efficiency during installation and debugging.



















New design for mask making machine application diagram:

Tension Controllers



Tension and Torque Controllers automatically compensate for changes in roll diameter, speed and other process variables.







What is Web Tension Control ?

Web tension control can be defined as the maintenance of a set amount of web tension (pull or force) for a material being processed. Often measured in oz, lbs, grams, kg, or newtons ¡ª proper tension must be maintained to prevent stretching, wrinkling, breaking or inconsistent registration of material during printing or converting processes.





Web tension control improves uniformity in coating applications and material lamination while decreasing the incidence of rewind defects such as crushed cores, starring and telescoping. When web tension is under control it can enable processes to run at higher speeds while reducing scrap, delivering a rapid return on investment that boosts producers' long term profitability.





Where is web tension control most commonly used?

Web tension control is most commonly used in three zones: Unwind (infeed), Intermediate (process), and Rewind (take up).

In the unwind zone, infeed roll hold-back torque is often controlled by an electric or pneumatic brake. The web strain or tension resulting from this torque is regulated by a closed-loop controller to prevent web drooping, stretching or wrap-up incidents ahead of transiting to the intermediate zone.

Proper maintenance of intermediate zone tension is often critical to ensuring the quality of coating, laminating, curing, treating or slitting processes. This zone is typically controlled by a set of driven nip rollers which dictate line speed to the entire system. This speed reference is matched in the unwind and rewind by virtue of having to accelerate or decelerate in order to maintain a desired tension set point.

Proper tension in the rewind zone ensures under or over-tight rolls and their associated defects are prevented. Rewind zone torque is often controlled by the motor drives of center or surface winders. Implementing progressive taper tension techniques during winding is an effective way to ensure finished rolls maintain spring tension stability and do not experience material shift and core deformation during handling and storage.

From process start to finish, it's clear that reliable web tension control is the key to ensuring maximum system efficiency and quality of finished products.











Typical tension control solutions incorporate:



Sunrise Automatic tension controller such as the LTC-858A,LTC-858A



Sunrise Tension sensor such as LS series or LC series tension sensor



Sunrise A Pneumatic Brake, Magnetic Particle Brake, Clutch