Common problems and solutions of the hottest corru

2022-09-19
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Common problems and solutions in corrugated board processing

the structure of corrugated board production and processing line is complex. During production, it is required to adjust the corrugated base paper, humidity, bonding Liu, speed and other processes synchronously. If one link is out of control, quality problems will inevitably occur. At the same time, in the production process, the technical parameters, process design, quality inspection and other aspects of corrugated board are very strict and qualified corrugated board, so as to ensure that the anti wearability strength and ring wearability strength of corrugated box meet the requirements. Problem cause solution high and low corrugation (1) dirt, wear or non parallelism on the surface of corrugation roller

(2) there is dirt, wear or non parallelism on the surface of the pressure roller

(3) pollution, wear and deformation of guide board

(4) the guide board groove of the upper corrugating roller is blocked

(5) insufficient steam spray on corrugated base paper

(6) the heat of corrugated roller is insufficient

(7) the sheet change order of box board paper and corrugated base paper 1. The extensive plastic granulator is a combination, and the force of the intelligent plastic granulator is uneven

(8) the bearings of corrugating roll and pressure roll are worn

(9) the guide board bracket is not parallel. (1) Clean the surface of corrugated roll or pressure roll. If the corrugated roll is worn, grind it or replace it

(2) clean the surface of corrugated roll or pressure roll

(3) clean the paper guide or replace the paper guide

(4) clean the trench and remove dirt

(5) adjust the steam. It is worth mentioning that this composite paper has potential utilization value in the biological field. The amount of spray can give full play to the role of wetting device

(6) reduce the speed, check the cause of low humidity and eliminate the fault

(7) adjust the tension controller

(8) replace the bearing

(9) the structure is comprehensively optimized and the bracket is adjusted to make it parallel. Wrinkle on the surface (1) the tension of the carton board is not enough

(2) the height of the pressure roll is not enough

(3) the moisture content of carton board is uneven and the quality is poor. (1) Adjust the return tray tension controller

(2) regrind the medium and high quantity

(3) adjust the moisture of the box board with the preheater or replace the box board. Corrugated wrinkle (1) the tension of corrugated base paper is not enough

(2) uneven clamping pressure

(3) the water content of corrugated base paper is unstable and the quality is poor. (1) Adjust the return tray tension controller

(2) adjust the pressure on the left and right sides of the corrugating roll to make it clamped and the pressure uniform

(3) play the role of preheater and wetter or replace the base paper. Corrugation (1) the heat of corrugating roll is insufficient

(2) the moisture content of corrugated base paper is too high

(3) there are dirt, wear and non parallelism on the corrugated roller surface

(4) insufficient oil mist

(5) the clamping pressure of the upper corrugating roller is inappropriate

(6) the base paper tension is too large

(7) the guide board is polluted, worn, deformed or poorly adjusted. (1) Check the cause of insufficient humidity, eliminate the fault, or reduce the speed

(2) give full play to the role of preheater

(3) clean the surface of the corrugating roll and correct the parallelism of the corrugating roll

(4) adjust the amount of oil mist

(5) high speed clamping pressure

(6) tension controller of high-speed paper return rack

(7) adjust the position of the guide board and replace the guide board. Washboard concave (1) too much adhesive coating

(2) the viscosity of adhesive is too low

(3) uneven thickness of box board paper

(4) box board paper and corrugated base paper have high moisture content

(5) too much steam spray on corrugated base paper. (1) Reduce adhesive adhesion

(2) increase the viscosity of the adhesive

(3) replace the paper roll and note that the fiber direction of the paper should be parallel to the corrugated direction

(4) play the role of preheater

(5) adjust the preheater and wetter. Corrugated is in a jumping irregular shape (1) the moisture content of corrugated base paper is too high or too low

(2) there is dirt on the corrugated roller surface

(3) the guide board is polluted or worn

(4) the pressure of the corrugating roller is insufficient or unstable. (1) Improve the effect of preheater and adjust the function of wetter

(2) clean the surface of the corrugating roller

(3) clean the guide board or replace the guide board

(4) increase the meshing force of the corrugating roll. Corrugation crack (1) the corrugation base paper is lack of water

(2) the tensile strength of corrugated base paper is insufficient

(3) the tension of corrugated base paper is too large

(4) the clamping pressure of the corrugating roller is too high

(5) the corrugating roll and pressure roll are worn unevenly or not parallel. (1) Give full play to the role of wetting device

(2) reduce the speed

(3) adjust the tension controller of the return tray

(4) adjust the clamping pressure of the corrugating roll

(5) grind the corrugating roll and pressure roll and correct the parallelism. Corrugation scar (1) there are scars and dirt on the corrugation roll

(2) the guide board is damaged, contaminated or improperly adjusted. (1) Repair or clean the corrugating roller

(2) replace the guide board. Corrugation damage (1) dirt, deformation or non parallelism on the pressure roll

(2) the moisture content of the base paper is too high

(3) uneven wear of bearing rollers. (1) Repair or clean the corrugating roll and correct the parallelism

(2) improve the effect of preheater

(3) grind or replace the corrugating roller

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