The crux of the loss of the hottest cartons and it

2022-07-22
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The crux of carton loss and its radical cure

the loss of carton enterprises is a major factor affecting the cost. If the loss is well controlled, it can greatly increase the benefits of enterprises and improve the competitiveness of products. The following is a general analysis of various losses in the carton factory

the total loss of the carton factory is simply the input of base paper minus the storage of finished products. For example, if the input volume of base paper in the current month should be 1million square meters, and the warehousing volume of finished products is 900000 square meters, then the total loss of the factory in the current month = (100-90) = 100000 square meters, and the total loss rate is 10/100 100% - 10%. Such a total loss can only be a very general figure. However, the allocation of losses to each process will be more clear, and it will be more convenient for us to find out the methods and breakthroughs to reduce losses

loss of corrugated board

1 Defective product loss: the defective product refers to the nonconforming product cut by the cutting machine

formula definition: loss area = (number of trimming width cuts) number of cutters for cutting defective products. Causes: improper operation by personnel, quality problems of base paper, poor fitting, etc

improvement measures: strengthen the management of operators and control the quality of base paper

2. Excess product loss: excess product refers to the qualified product that exceeds the predetermined paper feeding amount. For example, if 100 sheets of paper are scheduled to be delivered, and 105 sheets of qualified products are delivered, then 5 of them are super products

formula definition: loss area of over finished products = (number of trimming width cuts) cutting length (number of defective cutters - number of scheduled cutters) causes: excessive paper on the corrugating machine, inaccurate paper receiving of the corrugating machine, etc

improvement countermeasures: using the production management system of the corrugating machine can solve the problems of inaccurate paper loading and inaccurate paper receiving of a single corrugating machine. 3. trimming loss: trimming refers to the part repaired by the trimming and crimping machine of the re tile machine

formula definition: trimming loss area = (paper web - trimming width cutting number) cutting length (cutting number of good products + cutting number of bad products) cause of Y axis during workbench operation: normal loss, but if it is too large, analyze the cause. For example, if the trimming width of the order is 981

mm, and the minimum trimming width required by the corrugating machine is 20mm, then 981mm+20mm=1001mm, which is exactly greater than 1000mm, only 1050mm paper can be used, so the trimming width is 1050mm-981mm = 69mm, which is much larger than the normal trimming, resulting in an increase in trimming loss area

improvement countermeasures: if there is any difference between plastic tensile testing machine and metal tensile testing machine? If measuring plastic products at the same time is the above reason, it can be considered that such orders do not trim the edges, use 1000mm paper to run the paper, and roll it off when they arrive at the later stage of printing and box making, which can save 50mm

width paper, but this will reduce the printing efficiency to a certain extent. Another countermeasure is that the sales department can take this into account when accepting orders, improve the order structure and optimize the orders. 4. skip loss: skip refers to the part caused by the shortage of base paper of the basic paper web and the need to use a wider paper web to move the paper with overcurrent, overvoltage, overload and other protection devices. For example, the order should use 1000mm

paper. However, due to the lack of 1000mm base paper or other reasons, 1050mm paper needs to be used. The extra 50mm belongs to skip

formula definition: skip loss area = (paper web after skip - scheduled paper web) cut length (number of good product cutters + number of bad product cutters)

cause: unreasonable base paper preparation or delayed purchase of base paper by the sales department

improvement countermeasures: the company's procurement should review whether the base paper procurement and stock preparation meet the customer's needs, try to cooperate with the customer to prepare paper, and realize the working idea of T-mode. On the other hand, the sales department must issue the material requisition in advance to give the purchasing department a procurement cycle to ensure that the base paper is accurate and in place. Among them, the loss of defective products and the loss of over finished products should belong to the performance loss of the corrugated board production department, which can be used as the evaluation index of the Department to promote improvement

loss cannot be eliminated. What we can do is to reduce the loss to the lowest and most reasonable level through various ways and techniques. Therefore, the significance of subdividing the losses above is to let each relevant process know whether the losses are reasonable, whether there is room for improvement and what needs to be improved (for example, if the loss of super products is too large, it may be necessary to review whether the paper connection of the corrugating machine is accurate, if the skip loss is too large, it may be necessary to review whether the base paper preparation is reasonable, etc.), so as to achieve the purpose of controlling and reducing losses, reducing costs and improving product competitiveness, In addition, assessment indicators can be formulated for each department according to various losses, so as to reward the good and punish the bad, and improve the enthusiasm of operators to reduce losses in august2016

printing box loss

1 Additive loss: certain losses will inevitably occur due to printing machine commissioning and accidents during carton production, so a certain amount of additive will be added during order scheduling

formula definition: additive quantity loss area = scheduling additive quantity carton unit area

there are many reasons, such as large loss of printing machine, low operating level of printing machine operators, and large packing loss in the rear section. In addition, the sales department did not control the order addition quantity. In fact, there is no need to add so many additive quantities. Excessive additive quantities will lead to unnecessary overstock. Overstock cannot be digested and will become dead stock, that is, overstock, which is also an unnecessary loss. Improvement measures: this item should belong to the performance loss of the printing and box making department, which can be used as the evaluation index of the Department to promote the improvement of personnel quality and operation level. The sales department should strengthen the gate in terms of the order adding quantity, and the adding quantity of complex production and simple production should be different. It is recommended to include the adding quantity in the first article, and control it from the source to avoid unnecessary over or under production

2. Edge rolling loss: in the production of cartons, the part around the cardboard rolled off by the die-cutting machine, that is, edge rolling loss

formula definition: edge rolling loss area = (paper preparation area - area after rolling) warehousing quantity

cause: normal loss, but if the quantity is too large, the cause should be analyzed. There are also fully automatic, manual and semi-automatic die-cutting machines, which require different requirements for edge rolling. Therefore, different die-cutting machines must pre add corresponding edge rolling to reduce the edge rolling loss as much as possible. 3. full plate trimming loss: some carton users require that the edges should not leak white. In order to ensure the quality, it is necessary to increase a certain area around the original carton (e.g. increase by 20mm) to ensure that the rolled carton will not leak white. The increased part of 20mm is the full plate trimming loss

formula definition: full page trimming loss area = (paper preparation area - actual carton area) warehousing quantity

cause: normal loss, but if the quantity is too large, the cause should be analyzed and improved

practice has proved that under the scientific management mode, the loss can be controlled. As long as the enterprise adopts a reasonable solution, the loss will no longer be the eternal pain of the enterprise

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