Web Guiding System







Guided Ball Nut adds reliability and long-term performance






Brushless motor for reduced maintenance and greater thrust




Color touch screen with options for mounting vertically or horizontally


Multiple languages and icons for easy setup, training and operation


Cost-effective solution for narrow web and nonwoven applications


Compact design fits easily in tight spaces




Optional splice table and fine adjustment mounting bracket

Pivot Frame Web Guiding Systems Series 


Re web guide model WG offset pivot frame




This system utilizes two parallel rolls positioned where maximum precision is required, with the sensor placed just after the output roll.Puts least amount of stress on the web material.Most precise.

SUNRISE High Class Web Guide Control System PG series






 






Steering Frame PG series outline:






PG series servo motors intermediate steering frame is driven by brushless DC servo motor with accuracy ball bar driven, compact structure, mechanical rigidity, low inertia, high precision which is suitable for high- speed and high-precision guiding during material processing.
















Steering Frame PG series Size:
































Steering Frame PG series material moving direction:

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

Web Guide Control system
















Sunrise Group web guide control system is

typically a mechanical structure that makes contact with the material and moves

the web material. Depending on the type of web guide, the shape and size of the

guide mechanism are varied. An actuator moves the web guide mechanism to guide

the web at the appropriate location.
















A web edge sensor or a web position sensor

detects the position of the web materials. This measurement is used to

determine and control the desired position of the materials.























The web guide controller is the brain of

the web guiding system. The controller uses the measurement from the sensor to determine

the necessary corrective action. The controller then command the actuator to

move the guide mechanism to actively control the web position.























Design of Web Guide Control System
















The design includes two rollers (or more)

on the web guide mechanism that rotate about an imaginary pivot point. Hence

they are also called an offset-pivot guide.













The two rollers guide platform enables pure

displacement of the web with minimal bending stresses on the web. This pure

displacement action enables web correction with minimal entry and exit span

requirements.























Sunrise will find the best web guide control system
















As we search for the most appropriate

equipment for our operation, we are faced with the task of selecting from

myriad options based on technical data and specs. Through these data,

measurements of accuracy, precision, linearity and resolution, we are trying to

present the benefits of their products based on the device’s performance profile.