FAQ

A: The non-stop rewinder achieves continuous production through a 4-shaft alternating winding system with automatic roll change technology.

Q: Which industries are suitable for non-stop rewinders?

A: Non-stop rewinders are widely used in the paper industry for rewinding base paper rolls, packaging and printing industries for processing rolls for downstream production and logistics, and label production for high-volume manufacturing of logistics label substrates and retail label rolls.

Q: What is the working principle of a non-stop rewinder? 

A: Non-stop rewinders utilize advanced servo control systems and mechanical drives to enable continuous operation including tube loading, roll changeover, rewinding, end-sealing & labeling, and roll discharge, with key technologies like 4-shaft exchange system for instant transition between rolls, adaptive tension control, and automatic web guiding to ensure uninterrupted production and consistent roll quality.

A:Common issues include:

A:Maintenance of non-stop rewinding machines should be performed by professional technicians. Routine tasks include regular inspections of critical components such as the transmission system, braking system, and electrical system to ensure proper operation. Keeping the equipment clean is essential to prevent dust and debris from affecting performance and longevity. Additionally, periodic checks and maintenance of the control system are necessary to ensure precision and stability.

A: The delivery time for standard models is 3-7 working days after receiving the deposit. For customized models, please consult your business manager for confirmation. The delivery time is primarily determined by the model, quantity, and specific requirements of the machine equipment.

A: Possible reasons include improper fixing position of the cutting tool, wear of the cutting plate and cutting tool, as well as inappropriate cutting pressure or speed. The solution is to regularly inspect and correctly adjust the fixing position of the cutting tool, promptly replace the severely worn cutting plate and cutting tool, and at the same time, reasonably adjust the cutting pressure and speed of the cutting tool according to the material and process requirements.

Q: How to solve the problem of unsmooth cutting lines, such as discontinuous lines and jamming?

A: This may be due to blunting of the cutting tool, incorrect installation or improper angle of the cutting tool, and contamination on the surface of the cutting plate and guide rail. It is necessary to promptly replace the blunt cutting tool, inspect and correctly install the cutting tool, adjust the angle of the cutting tool to ensure close contact with the material, and also regularly clean the cutting plate and guide rail to keep their surfaces smooth.

Q: What causes the phenomenon of material chips falling off during the die-cutting process? 

A: There are various reasons for material chip falling, which may include foreign matter on the support ring, defects in the die, adhesive accumulation or loss of elasticity of the die-pad foam, and improper pressing of the cutting tool. The solutions are to inspect the support ring and clean up foreign matter, repair the die, replace the foam, and re-press the cutting tool.

A:It may be due to loose fixing of the cutting tool or insufficient lubrication of moving parts. You can inspect and fix the loose cutting tool, and regularly lubricate moving parts such as guide rails and bearings

A:Possible causes include power supply failure, loose connecting wires of the control system, or issues with software or firmware. It is necessary to check whether the power supply is normal, replace or repair it if there is a problem, inspect and ensure that the connecting wires of the control system are firmly connected, update the software and firmware of the control system, and conduct appropriate maintenance.

A: When the film cannot be cut through, it indicates that the length of the cutting needle is too short. You need to rotate the dial above the cutting needle one scale towards the direction of larger numbers, then conduct a cutting needle test until the cutting needle test shows normal. If the film still cannot be cut through even after rotating the cutting needle to the maximum scale, the cutting needle should be replaced.

A: 1. Feed speed is too fast;
   2. The blade is not sharp;
   3. The cutter marks on the cutting shaft are too deep;
   4. The shaft is undersized or the paper tube is oversized, any one or more of the above four situations.

Q: What causes paper tubes to be cut crookedly by a paper tube cutting machine? How to handle it?

A: The reason may be that the tool holder or the blade is loose.

Q: In what aspects is the "automation" of an automatic paper tube cutting machine embodied? 

A: The "automation" of an automatic paper tube cutting machine is embodied in key links of the entire process: automatic feeding and discharging of paper tubes, automatic adjustment of cutting depth, automatic calculation of cutting time, automatic sensing of paper tube thickness, automatic cutting, automatic clamping, automatic loosening, automatic counting, automatic calculation of cutting time, automatic calculation of the optimal cutting point, automatic tracking of input position, etc. Relying on PLC and servo motor for automatic positioning and calibration, cutting automatically according to preset parameters, automatic discharging of finished products (some can automatically sort waste), and can also monitor operation in real time, automatically stop and alarm in case of abnormality, forming a closed loop without manual intervention.

A:Check whether the safety devices of the equipment are intact before operation, prevent hand injury when installing the circular blade, do not allow any part of the body to contact areas such as the circular blade when the equipment is running, someone must monitor the operation status of the equipment during production, and the position of the circular blade must be confirmed and the power must be cut off before loading and unloading materials.

A:The main reasons include power problems, such as unstable voltage and power line failures; mechanical failures, such as abnormal transmission system, problems with rails and clamps; control system failures, sensor failure, touch screen or operation interface failure.

A: First check the fault information prompted by the touch screen, and perform corresponding operations according to the prompts on the touch screen, ensure stable input voltage, and regularly check the power line; regularly check and replace the blade, strengthen the maintenance of the transmission system, and adjust the rails and clamps; replace faulty sensors, and repair the touch screen and operation interface; set cutting parameters reasonably.

A: The blurriness or unclearness of printed images is caused by uneven printing pressure—insufficient pressure in some areas prevents ink from being fully transferred to the substrate, resulting in partial blurriness of the image. This issue can be resolved by using the pressure adjustment device to carefully adjust the printing pressure, ensuring uniform pressure across the entire printing area.

Q: Causes of Inconsistent Color in Printed Images

A: Inconsistent color in printed images may result from deviations in the ink mixing ratio (leading to a mismatch with the standard color sample) and inaccurate color calibration of the printing machine, which fails to be properly calibrated based on the properties of the substrate and ink.

Q: Causes of Spots or Stains in Printed Images 

A: During the production, storage, or use of the printing plate, its surface may become contaminated with dirt (such as dust and oil stains), which causes abnormal ink transfer in these areas and forms spots. To address this, use a dedicated printing plate cleaner to thoroughly clean the plate surface and remove dirt.

A:To solve paper jams in printing machines, first ensure paper quality by using flat, dry paper that meets printing requirements; second, inspect the paper feeding system by clearing foreign objects from the paper feeding channel and replacing worn paper feeding rollers; third, check the interior of the printing machine by conducting a comprehensive inspection, tightening loose components, and repairing or replacing deformed parts.

A:To address excessive noise from printing machines, regularly inspect components and promptly replace those with severe wear; add an appropriate amount of suitable lubricating oil to all moving parts at regular intervals in accordance with the printing machine’s lubrication requirements; and check all connection parts of the printing machine to tighten loose screws, nuts, etc.

A: Increase the solvent content in the ink to reduce the ink’s drying speed, and use paper with high surface strength for printing. Maintain and inspect for hot dry air leaks; frequently stir the ink in the ink tray to keep the ink in a flowing state, and add new ink in a timely manner to reduce the formation of ink skins.