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It is intended for operators, designers and engineers who would like a better These controllers are made in accordance with the set industry norms using the sturdy raw material. As mentioned, one of the key elements to improved productivity and profitability can be traced to the lack of effective tension control. So in a basic sense, by controlling the torque in a uniform manner in relation to the roll, we control tension. KEW series controls Unwind, Rewind and intermediate web tension automatically. Accurate and stable tension control ensures the highest product quality and productivity. ), Automated, consistent and continuous production. Our tension controllers are widely demanded in the market for various weighing and measurement purposes. Web Tension Controllers Web tension has an important role in the sectors of converting, paper and carton board, aluminium foil, textile, wire and cables. The SteadyWeb6™ Tension Controller combines a full-featured, automatic, closed-loop tension control unit with the most intuitive user interface ever developed for the web process industries. Buying Web Tension Controllers. In both closed loop and open loop, tension is managed by the torque applied to the center of the roll from a brake, clutch, or drive. Load Cells. The Cleveland-Kidder® WebPro Advanced Digital Web Tension Controller provides closed-loop control with tension transducer (load cell) feedback for a wide range of web tension applications. With a fixed torque in an unwind application, as the roll diameter decreases, the tension applied to the web will increase, and will increase more rapidly as the roll diameter gets closer to core. The measuring force is detected via a bi-directional strip to which the strain gauges are applied, as a result of which an analogue measured signal proportional to the web tension is output. All Rights Reserved. Tension Controller, Web Guiding Control System, Magnetic Powder Brake, Magnetic Powder Clutch, Tension Meter, Tension Loadcell, Power Supply, Transducer Company Introduction Wuhan True Engin Technology Development Co., Ltd is located in the coast of South Lake and surrounded by numerous colleges and universities. Because tension control is the outmost control loop, the response time is slow compared to that of torque control or speed control. Tension control is the process of maintaining a predetermined or set amount of stress or strain on a given material between two points to maintain its desired properties (such as form, appearance, etc) and quality. Controller compares actual tension to desired tension ! Web Tension Control The BXCTRL Web Tension Control is a solid state electronic control that receives a signal from dancer input sensors or two load cells (customer supplied). controller, the load cells will tell the controller if the desired tension was reached. unwind/payout, process (nip), and rewind/take up, Adjustments made via physical or visual inspection, Result in constant up and down tension changes, Material curl during laminating processes, Roll defects (telescoping, starring, etc. It adopts 32-bit high-precision AD sampling with 1us sampling time. Posted by Bryon Williams & filed under Article Library, Montalvo News, Web Tension Control Blog. Web tension control can be defined as the maintenance of a set amount of web tension (pull or force) for the material being processed, often measured in oz, lbs, grams, kg, or newtons. Quality tension control helps to eliminate these scrap producers by creating a uniform and consistent process. Web Tension Controller Providing you the best range of web tension controller for printing machine, torque web tension controller, web tension controller and manual tension controller with effective & … controller increases or decreases Signal processing and control are digital, resulting in excellent temperature and long-term stability behavior. Tension control and regulation are necessary to keep constant the desired web tension, avoiding the possibility of material breaks in any phase of web … • The web handling principal states a web will seek to align itself perpendicular to an idler or driven roll. The production of high quality laminates requires a precise detection and control of the tension of a web.The more influent parameter is the tension of the material, for this reason it’s necessary to have a tension regulator that ensures a correct and constant value during the whole working process. Customers can avail a wide range of Tension Controller from us. This means that as a roll diameter increases or decreases, torque must be adjusted to maintain tension at the optimal value, or setpoint. Maintaining proper tension gets increasingly difficult as roll diameters decrease and changes happen more frequently. Nexen’s web tension sensors include load cells for measuring the force applied to a sensor roller, roll diameter sensors, and rotary sensors used with dancer systems. The unit can be used stand-alone with color TP HMI or integrated into the user's logic system. And all of this happens automatically. Web tension and control sensors are the input devices used with tension control systems and web guide systems. We can help you with a web tension control system, tension indicators, tensions controllers, as well as rebuild or repair your older Comptrol web tension control products. Based on inputs into the controller, the controller uses any detected changes in roll diameter to regulate torque and maintain tension, as opposed to closed loop systems which receive tension feedback directly from the web of material. algorithm, which has been improved in speed and accuracy. The web must be “in traction” with all machine idler rolls and driven rolls to ensure proper web handling and control. Just set the desire tension and the controller maintain it by automatically compensating for various roll diameters, speed, web material etc. Tension controls manufacturer Dover Flexo Electronics (DFE) introduces the new, feature-packed SteadyWeb5 Digital Tension Controller.. In the following drawing, the Closed Loop is made by the following sequence: Brake puts tension on web ! This process often takes place in specific control zones: unwind/payout, process (nip), and rewind/take up, with each having unique tension control requirements. The entire range is tested completely before final delivery. T-one is a tension controller specifically designed for the web tension control in closed-loop and combined systems; extreme ease of use and compactness are the main features of the tension controller. actual tension and set tension is displayed on digital meter. In your current application could you double your speed without sacrificing end product quality? ✓Thank youThanks for sharing your contact infoWe will get back shortly, We will contact you soon for better understanding of your product requirement & specification, Proximity switch or Encoder NPN transistor, Max Freq. Web tension controller for sale, LCD display, high precision, multi-function, full digital intelligent automatic tension control, send 0-24VDC control voltage command for magnetic powder clutch/brake. Although not as precise as closed loop systems, open loop systems still provide an automated system of consistent tension control that outperform manual control. With manual tension control a web is subject to constant up and down spikes as an operator is always playing with correcting the tension. The web tension specialists CMC Controls is a manufacturer of web and wire tension control systems, web tension transducers / load cells, analogue and digital web tension indicators, web tension amplifiers and web tension controllers Web and wire tension control transducers / web tension load cells for rotating and fixed shaft rollers Open loop systems are generally less expensive than closed loop systems because you are not utilizing additional products, like load cells. In the sysem, dual tension signal was sent to the controller, the controller compares the target tension with the actual tension and calculates the output with a build-in PID algorithm, then output a compensating signal to a tensioning device such as a powder brake, clutch or a DC drive to get the accurate control of tension. Position and Diameter Sensors Measure the diameter of the roll and allow your core and full roll alarms to be adjusted to give your operator proper notification before reaching the end of the roll. Web Tension Measurement devices include load cells or a dancer position feedback sensor, that are constantly relaying tension changes directly from the web of material to the tension controller, which regulates the output of the torque device, which may be a tension brake, clutch, or drive to maintain the desired tension level. Tension Controllers automatically regulate this torque, making any necessary correction or adjustments, throughout the process, allowing for continuous production. If any changes in tension are detected the controller can instantly alter the torque device to maintain set tension. So tension control is the process of ensuring your material gets from point A to point B in a uniform and consistent manner without any loss to material quality. Automating the process, creating a continuous process and increasing productivity are all going to rely heavily on proper tension control to ensure consistent and high-quality results. This paper is a review of the fundamentals of web tension control, covering the following topics; Machine sections (unwinds, rewinds and driven m… It can be used either in rewinding or unwinding stations or as a brake controller or intermediate line drive. Narrow Web and Pulley Tension Sensors Tension sensors of the cantilever design measure tension forces in narrow webs, ribbons, filaments, wires, cables and ropes. When installed in place of a standard dead shaft idler roller, the MAGPOWR Tension Sensing Idler Rolls deliver precise web tension measurement. Other sources of scrap and lost productivity come from web breaks, and inconsistent end product. Tension is the pull or strain put on a web of material that tends to stretch it in the machine direction. These cantilever narrow web transducers are designed for measuring applications in conjunction with pulleys, sheaves or narrow web measuring rollers. Web Tension Controllers by Double E. Double E offers a variety of web tension control systems available using load cells, dancers, ultrasonic sensors, and amplifiers. Available in a full enclosure or panel-mount version, the SteadyWeb5 is an automated closed-loop tension controller that takes input signals from tension transducers (the machine’s web path) and supplies a compensated control signal to a tensioning … The sensor provides a high precision signal with high speed and can be applied in conjunction with magnetic powder brakes, pneumatic brakes, electric motors, etc. Function. The DGT300+ is a digital tension controller dedicated to web tension and torque control. TC950 can be used to form a closed-loop tension control system. Operators simply input the parameters of the production run (such as speed, tension, etc), press start/run and allow the controller to automatically manage production. The features like strain gauge based sensors, easy tension calibration and automatic as well as manual tension control make these products a preferred choice of many clients. So in a basic sense, by controlling the torque in a uniform manner in relation to the roll, we control tension. It integrates two separate Digital PID Controllers and two separate Open Loop controls. Web tension control refers to the process of controlling tension while transporting a web. We can replace other transducers / load cells on machines as well, try our web tension control system configurator, to choose a load cell that will work best for you. Some terms to familiarize yourself with when buying web tension control products include PID control, microcontroller, tension load cells, load cell amplifiers, and dancer control. frequency: 15kHz. The LCD and indicators make the user can opearate the controller easily without long time learning. There are three types of tension control: Just as it implies manual control is the process of visually or physically determining if tension is correct, and then making manual adjustments to maintain the desired tension level. Open Loop Torque Controller Web Tension Controllers. The TC818 tension controller, with a 128x96 pixel graphical lcd display, provides precision control of winding, unwinding zones in both web and strand processing applications. Web tension controller DC 62; Product description For use in the paper, film and textile industry ; Simple and fast commissioning of the web tension control ; Variable control structure for different application scenarios: "open loop" and "closed loop" Technical Specifications It can also output 0-10V voltage signal to control vfd, servo motor or other actuators to perform high-precision tension control on the coil material. Open loop systems utilize products such as ultrasonic sensors or proximity sensors to measure, or calculate roll diameter. This more or less is leaving money on the core, only to end up as scrap. Closed Loop Tension Control refers to a continuous flow of communication from a web tension measurement device, to a torque controller, to a torque device. This is the feedback. • It is impossible to control your web without proper tension being applied to it. Overall, installing a web tension controller can decrease the variation of tension significantly. 15k Hz, Dual 0~20 mA, 4~20 mA, PWM Phase- Shifting Output, 0-10V, 4-20 mA, 0-20 mA, which can be directed to a brake or a DC drive, Dual 24V/4A, drive magnetic power brake/clutch, Dual 0-20mA, drive inverter or electric pneumatic converter, 7 Segment LED & Graphic LCD (Dual) Display, Friendly interface, ease to use and configure, LED Indicators: OUT, OUTA, OUTB, COM, AUTO, etc, Bright LED for PV, output, diameter indication, Micro-displacement based tension sensor (signal range: 200mV, Power supply: 5 V DC, Strain gauge based tension sensor (signal range: 20mV, Power supply: 10V DC), Radius detection: Proximity switch or encoder, NPN sgnal, max. The latest of the tension controls’ family of IBD Wickeltechnik is web@tens, which adds new characteristics such as the compact dimensions and the easiness to use, to the basic functions that have allowed our MW.90.10 to be distributed worldwide. We like to use the term “set it and forget it” to describe how a high quality tension control system should operate. Features: Automatic/Manual tension control; Measured Tension transmission; Reel exchange function; Friendly user interface, easy to use; More cost efficient Accurate web tension measurement is a prerequisite for keeping the web tension constant within the desired range, during both acceleration and deceleration. ABB’s web tension system is the perfect choice for measuring web tension in paper mills or converting applications such as printing, laminating, coating, slipping, sheeting etc. Products such as ultrasonic sensors or proximity sensors to measure, or Rewind refers the... Rolls and driven rolls to ensure proper web handling principal states a tension! Compared to that of torque control uniform manner in relation to the lack of effective tension Blog!, wrinkling, breaking, or calculate roll diameter builds, with a torque... 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