Value of waste to produce corrugated board key

Corrugated board waste is a problem that cannot be neglected in the production of corrugated board. If we can save material as much as possible and reduce waste, we will save a lot of money. First of all, let's study what are the ways to produce corrugated board waste.

1 Defective cardboard produced in the corrugated board machine section; 2 Scrap caused during the handling of raw materials; 3 Cardboard produced when the machine is adjusted; 4 Paper jam due to warpage, electrical or mechanical reasons; Loads of cardboard that are glued together; 6 loaded protective cardboard (top and bottom); 7 excess to customers.

So how can we effectively solve these problems? An effective solution to avoid waste must be a comprehensive plan from the bottom up, including the entire plant owner. The value of waste should be emphasized to the whole plant, and the origin and reasons of the waste should be clarified. The implementation plan should be studied through factory research and try to reduce and eliminate controllable waste. Through these measures, if the waste is reduced by 2%, the annual savings will be US$403,000.

First, establish an accurate measurement system. Labeling the baskets and carts containing various wastes, indicating the source and weight of the lost papers, including the types of broke, solutions and corrective measures, etc.; At all levels, they are aware of the necessity of reducing waste; setting and posting impairment targets at various work stages; posting these targets on boards, sections, and companies; and publishing the progress of each department and plant on a weekly basis; In the weekly team meeting, the status of the progress is fully discussed; after reaching the goal, all employees’ efforts are encouraged in different forms.

Where should you start on roll storage (storage, handling and storage)? Receive any damaged paper roll and report the relevant person in charge before depositing it in the warehouse. Any obvious damage caused by transportation should be reported to the railway and automobile transportation company and claim for compensation. Remind railways, automakers and water transport companies of their responsibilities. Defective paper rolls in transit are marked after being damaged (spray color) and stored. Damaged paper rolls without any marks and other damaged paper rolls found in the factory are considered to be damaged in the factory. It is recommended that the paper roll received should have a maximum of 5 layers to 6 layers of outer wrapper, and together with the paper roll supplier, try to reduce the loss of arrival.

The correct roll handling procedure requires training. The code distribution equipment must be in the best condition. Check whether the fork lifting equipment is too sharp every day. The production manager should always pay attention to the working status of the forklift. Drivers should pay attention to safety, do not damage the goods, and do not damage the equipment while working; contact the regional sales manager to arrange the training of forklift drivers.

Make use of the following points to establish a lay plan of the paper roll in the warehouse.

(1) Use a hanging sign to indicate the width of each storage area and the type of goods. Marks may also be made on the ground.

(2) Install appropriate lighting in the roll storage area to see the stored goods.

(3) The paper roll is a set of squares arranged neatly and placed smoothly one by one.

(4) Brush different colors on columns, doorways, and any obstructions to distinguish them. This can prevent loss during handling.

(5) Do not let the paper roll out of the storage area into the aisle, this will certainly be met by the car. Another area of ​​special concern is the inside of the aisle turn. Consider using a corner guard 1/4′′×3′×6′ iron plate bent at 90° so that it is 3′ long on all sides of the corner. This board can be painted with yellow and black diagonal stripes, leaving holes for hand-carrying holes on both sides of the board to facilitate movement.

(6) Check the roof regularly for cracks after heavy rain and fix it before the next heavy rain.

(7) Place all corrugating medium and recycled boxboard paper on a 4" x 4" wooden plank to isolate the moisture on the ground.

(8) Conduct a daily tour inspection in the warehouse to check if there are any unsmooth, unsmooth or falling paper rolls in each storage area and re-locate them. Check if there are areas where the paper roll was misplaced, proper storage conditions, and the number of small rolls left.

(9) Before the roll is put into storage, the glue-opening part must be re-glued.

(10) The remaining small rolls must be used gradually. The warehouse driver should handle the remaining small rolls before using the full rolls, and ensure that the remaining small rolls are stored in appropriate Location so easy to find and use regularly.

(11) To inspect the various pipes above the corrugated paper storage area, if any leaks, repair it in time.

(12) To make warehouse drivers aware of how to prepare and collect labels, they should ensure that labels are not lost.

(13) Review these points regularly with the warehouse driver and make sure that they understand clearly and follow the requirements.

(14) Contact with the regional sales manager to review the warehouse arrangement and management procedures.

If the loss of paper roll storage is reduced by 0.5%, it is equivalent to saving $8,400 per month and saving $100,800 per year.

Corrugated Board Wet Operating Section Paper Roll Stripping Management: Operators are not allowed to remove the damaged packaging layer of the paper roll with a razor cutter; use a plastic stripping tool (remove 2 to 3 layers at one time); take all peeled off The paper is put into a separate paper waste car, which is easy to weigh, and the production supervisors check the conditions of each shift; put all unprocessed shafts into a separate paper waste car; pass the paper on the shaft core Unwinding, the operator immediately knows how much work to remove from the core. Although this work is simple, it can effectively use all the paper on the shaft.

How to deal with the loss of paper at the corrugated board machine? In fact, the corrugated board machine is the main place where each manufacturer produces broke. The implementation standards and procedures include at least the following: Determine the maximum width of the cutting edge, and use this as the standard. Standards should be reported to the factory manager for approval. The alignment of corrugating medium and linerboard paper will produce trimming scraps, equivalent to 0.5% scrap; annual project review will prevent downtime, misalignment, and quality problems. Bring the equipment into a good state of operation and increase production efficiency; must prioritize the maintenance, adjustment, and maintenance of the equipment; contact a regional sales manager to obtain a service plan for a technical service representative; ensure that prevention is done well every week Sexual maintenance inspections and proper handling; contact technical service representatives to obtain management forms; strengthen communication between cadres and wet departments through earphones or walkie-talkies; formulate in-plant training plans and conduct practical skills training. Operators and production supervisors have a thorough understanding of corrugated board machines and know how to solve the problem of waste generation.

Corrugated board machine dry work area is the largest area of ​​paper loss. When the paper is compounded in the wet work section, it is the first part that easily produces a large amount of waste products - the dry work board. The equipment must be in a good state of operation, and personnel of the team and maintenance personnel must be allowed to inspect, clean, and repair the machine. Warpage, uneven edges, too much starch, excessive temperature, and loosely bound edges can all be reduced and eliminated through good maintenance and operator training. Find out which parts of the paper broke up, determine how these defects occurred, and take steps to correct them.

First, the production of low-quality paperboard is reduced by preventive maintenance by each team; weekly temperature data (temperature, surface-to-surface temperature difference (edge ​​alignment/horizontal)) of the gluing machine, single-side machine, roll surface, and surface are recorded using various recording tables. Inspection; can ask technical service representatives for forms and requests for training; improve coordination between wet and cadres.

After careful analysis, the results were surprising. If the total waste was reduced by 0.5% to 1.5%, it would save $8,400 to $25,200 per month, saving $100,800 to $302,400 annually. This is no small sum of money. If they are put into production, they will bring greater economic benefits.