Corrugated board is the basic material for the manufacture of corrugated boxes. If the corrugated board is not complete, that is, there is a certain shortage of paper materials in each layer, such as the shortage of certain parts of the paper, liner or corrugated paper, it will become a defective board. Used to make cartons.
In order to reduce waste and defective products, improve the yield of finished products, and thus increase economic efficiency, carton factories must seriously study how to reduce the shortage of corrugated board.
The main reasons for the lack of material in corrugated board are as follows:
1, the operator is not skilled. Corrugated board production line is produced under the close cooperation of each stand-alone machine and double-sided machine. If the operator lacks experience and skill, it causes the position of the corrugated paper and the lining paper to be misaligned, and the position of the single-sided cardboard and the facing paper is not correct, and the phenomenon of misalignment of the layers of paper occurs. The corrugated cardboard cut by the cutter will have an out-of-texture on its outer edge.
2. Operators lack the idea of ​​being responsible for the end product. Some webs broke due to various reasons. Operators encounter this situation, in order to successfully run their own stand-alone, they will tear the next side to tear away. As a result, the base paper passed smoothly, but the paperboard produced had no material.
3, paper is not standardized. Sometimes, due to the shortage of paper, the paper is not standardized. Especially when the width of the paper is not enough, the cutting edge is tense. In the initial stage of production and when the paper holder is changed, the outer edges of the cardboard on both sides of the production line are likely to be affected. Insufficient material.
So, how can we reduce the shortage of corrugated board? Summarizing past practical experience, the author believes that the following measures should be taken in a targeted manner:
1. The corrugated paperboard production line should form a close cooperation with the two-sided machine as its core process. Mainly to double-sided machine, to ensure that single-sided cardboard and paper "aligned." If any layer of paper has deviations, it must be promptly corrected. The owner's operating hands cannot be easily replaced. If there are any changes to the personnel, they must undergo rigorous examination and cooperation in order to take up the job. In the lack of experience and technical inexperienced stages, it is possible to use the method of threading the paper support floor and the inlet of the double-sided machine, combined with the corrective control on the bridge, so that the operation of all paper rolls (cardboard) is maintained on a longitudinal axis. . With the accumulation of experience and skillful, single-sided machines, double-sided machines, and slitter operators, close cooperation on the issue of “alignment†can be handled with ease.
2, the production line operators should establish the idea of ​​responsible for the end product. Strive to reduce the shortage of corrugated board. For example, the edge of a web of paper breaks, and the direction of the break is in line with the direction of advancement of the base paper, and it can pass smoothly; if the direction of the break is opposite or transverse to the running direction of the base paper, it is generally treated. However, the method of “removing the next side of the breach to the back of the diagonal†must be changed to a method of “supporting one hand†on the next side to help it pass smoothly. Practice has proved that the method of "supporting one hand" is completely feasible. In doing so, although it is a little troublesome, it has greatly reduced the shortage of corrugated board.
3, use paper to strive to standardize. The corrugated paperboard production line must be scientifically calculated. The width of the web must meet the requirements. The width is too large to cause waste; and the width is too small to cause the paperboard to be out of material. The requirements for the normalization of the width, in the case of the existing equipment, are that both sides must have a 15-20mm cut edge, and at least not less than 10mm. In this way, under the meticulous operation of workers, the shortage of corrugated board will be greatly reduced.
4, the implementation of rigorous repair process. The repairing process is a science. Through rigorous and ingenious repairs, the corrugated board with some raw materials is no different from the normal board in appearance and internal quality.
5. Strengthen the management of loading and unloading of raw paper. The prevention of damage to the production and use caused by fork breakage, cracking, and wetting of the base paper during loading and unloading and storage is strictly prevented to maintain the integrity of the entire paper roll.
Production practice tells us that as long as the above measures are seriously implemented, the phenomenon of shortage of corrugated board will be greatly reduced, the rate of defective products will be reduced, the rate of finished products will increase, and the economic efficiency of enterprises will be significantly improved. (Yong Yingyong) ("China Packaging Newspaper·Paper Special Issue")
In order to reduce waste and defective products, improve the yield of finished products, and thus increase economic efficiency, carton factories must seriously study how to reduce the shortage of corrugated board.
The main reasons for the lack of material in corrugated board are as follows:
1, the operator is not skilled. Corrugated board production line is produced under the close cooperation of each stand-alone machine and double-sided machine. If the operator lacks experience and skill, it causes the position of the corrugated paper and the lining paper to be misaligned, and the position of the single-sided cardboard and the facing paper is not correct, and the phenomenon of misalignment of the layers of paper occurs. The corrugated cardboard cut by the cutter will have an out-of-texture on its outer edge.
2. Operators lack the idea of ​​being responsible for the end product. Some webs broke due to various reasons. Operators encounter this situation, in order to successfully run their own stand-alone, they will tear the next side to tear away. As a result, the base paper passed smoothly, but the paperboard produced had no material.
3, paper is not standardized. Sometimes, due to the shortage of paper, the paper is not standardized. Especially when the width of the paper is not enough, the cutting edge is tense. In the initial stage of production and when the paper holder is changed, the outer edges of the cardboard on both sides of the production line are likely to be affected. Insufficient material.
So, how can we reduce the shortage of corrugated board? Summarizing past practical experience, the author believes that the following measures should be taken in a targeted manner:
1. The corrugated paperboard production line should form a close cooperation with the two-sided machine as its core process. Mainly to double-sided machine, to ensure that single-sided cardboard and paper "aligned." If any layer of paper has deviations, it must be promptly corrected. The owner's operating hands cannot be easily replaced. If there are any changes to the personnel, they must undergo rigorous examination and cooperation in order to take up the job. In the lack of experience and technical inexperienced stages, it is possible to use the method of threading the paper support floor and the inlet of the double-sided machine, combined with the corrective control on the bridge, so that the operation of all paper rolls (cardboard) is maintained on a longitudinal axis. . With the accumulation of experience and skillful, single-sided machines, double-sided machines, and slitter operators, close cooperation on the issue of “alignment†can be handled with ease.
2, the production line operators should establish the idea of ​​responsible for the end product. Strive to reduce the shortage of corrugated board. For example, the edge of a web of paper breaks, and the direction of the break is in line with the direction of advancement of the base paper, and it can pass smoothly; if the direction of the break is opposite or transverse to the running direction of the base paper, it is generally treated. However, the method of “removing the next side of the breach to the back of the diagonal†must be changed to a method of “supporting one hand†on the next side to help it pass smoothly. Practice has proved that the method of "supporting one hand" is completely feasible. In doing so, although it is a little troublesome, it has greatly reduced the shortage of corrugated board.
3, use paper to strive to standardize. The corrugated paperboard production line must be scientifically calculated. The width of the web must meet the requirements. The width is too large to cause waste; and the width is too small to cause the paperboard to be out of material. The requirements for the normalization of the width, in the case of the existing equipment, are that both sides must have a 15-20mm cut edge, and at least not less than 10mm. In this way, under the meticulous operation of workers, the shortage of corrugated board will be greatly reduced.
4, the implementation of rigorous repair process. The repairing process is a science. Through rigorous and ingenious repairs, the corrugated board with some raw materials is no different from the normal board in appearance and internal quality.
5. Strengthen the management of loading and unloading of raw paper. The prevention of damage to the production and use caused by fork breakage, cracking, and wetting of the base paper during loading and unloading and storage is strictly prevented to maintain the integrity of the entire paper roll.
Production practice tells us that as long as the above measures are seriously implemented, the phenomenon of shortage of corrugated board will be greatly reduced, the rate of defective products will be reduced, the rate of finished products will increase, and the economic efficiency of enterprises will be significantly improved. (Yong Yingyong) ("China Packaging Newspaper·Paper Special Issue")
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