Corrugated box manufacturing process problems

The work that can be done by modern packaging machinery goes far beyond simply imitating human actions. It can even be said that in many cases, finished products packed with clever mechanical methods are mostly manually operated regardless of style, texture or precision. Incompetent and comparable. With the diversification of commodities, this has increasingly attracted people's attention. In addition, the use of robots instead of human hands is sufficient to minimize possible infections caused by direct contact between the operator and the product, thereby ensuring the cleanliness of food and medicine and the rust and corrosion protection of metal products. As for the need for long-term, frequent, repeated and other cumbersome packaging work, if it can achieve mechanization and automation, it can greatly reduce physical labor intensity, improve worker health and increase production efficiency.

With the continuous development of modern packaging machinery, higher and special requirements have been put forward for the design and manufacture of cartons. We need to have a deep and extensive understanding of modern mechanical packaging in order to meet the needs of users.

The cartons used in the packing equipment of automatic packaging lines are roughly divided into two categories. One is a complete carton that is nailed or pasted. The carton is in the form of a counterpart, and the automatic packaging line is used for product packaging. Through the box, box, packing, sealing, coding, transportation and other processes to complete the package. The other is to provide plates that are only printed and die-cut. The industry calls them machine bags and the entire packaging process is done by automated packaging lines. At present, the packaging lines for beverages, beer, and bottled drinking water are mostly in the form of machine bags.

An important point in the design and manufacture of carton boxes for automated cartoning equipment is the adaptability to automatic packaging lines. Therefore, we must have a full understanding of the customer's packaging production line before ordering. Several actions to be completed in the carton during the packaging process are key points. Pay attention to whether the carton or the plate is smooth after being fed into the packaging line, and there should be no jamming phenomenon. Therefore, after receiving such orders, the supplier's technicians must work with the user to in-depth production lines to participate in debugging and discover problems immediately improve the design to solve problems. Instead of using the usual way of receiving orders, according to the user's drawing requirements, after the sample box is produced, the samples are sent to the user for approval.

If it is a new line debugging is relatively good, because the customer is to take your box to debug, so that your carton and automatic packaging production line through debugging, after reaching mutual adaptability, to determine the automatic packaging line machine settings, at the same time Carton requirements adapted to the production line have also been determined. Under normal circumstances, the adjustment of the customer's packaging line will not be easily adjusted. Therefore, the consistency of the carton we provide is very important, otherwise it may cause the complaint to return and the customer will leave a bad influence.

If you are a newly-entered carton supplier, you must refer to the existing supplier's carton product when you proof and try to do the same. Because it has already been said that for the automatic packaging line, the adaptability of the carton is very important. The production speed of automatic packaging line is very high. If the cause of the production line suspension is caused by the carton box, the frequent interruption of production will cause the efficiency to drop and the loss increase. The consequence of this is that there is no chance for further testing, which means that you can no longer get the order.

To meet the requirements of automatic packaging production customers' cartons, in addition to the consistency of the determined size, the pressure line of the carton is an important link. The automatic packaging line is completed by many mechanical devices and robots, and the pressure lines are not in place. Or the depth of the pressure line is not enough, so that the carton can not be formed or molded in place, which will cause the failure of the packaging action and severely block the line and stop the line. In particular, the pressure line of the carton flap cover, because the automatic line packaging usually use hot melt adhesive to bond forming, if the pressure line does not meet the requirements of the automatic packaging line, the molding is not in place and poor adhesion, severe production of bulk Pass the production line.

Corrugated carton in the use of automatic packing equipment may occur in several situations and solutions

When the pressure line is too shallow and the manipulator folds, the molding is not at the position of the pressure line

Solution: We must ensure the quality of press lines in production and strengthen production and quality inspection. Machine bag products are mostly die-cut production, especially round-bore circular die-cutting, die-cutting department should always produce different wide-width products, the wear of the anvil pad is inconsistent, the horizontal depth is different and the pressure lines are deep and shallow. Therefore, the anvil pad should be inspected before production. If necessary, adjust the position of the anvil pad, repair the anvil pad, or replace the new anvil pad. There are extra creases on the flap, and when the robot is folded, the molding is not in the position of the crimp but in the crease.

There are creases on the flap, which may not matter for manual packaging, but it is absolutely not allowed for mechanical packaging.

Solution: There are two reasons for creases on the flap. First, the sheet has already existed during production. It must be controlled on the assembly line to avoid creases. The second is that the plates are produced during the handling process. The single-tiles, especially the B-single tiles, must be observed when hand-fed. When the plates are slightly larger, they are easily creased when lifted by two people. Remind training operators of this awareness, and not to move too much at one time, too heavy to easily grasp the cardboard easier to crease.

The form of the pressure line does not meet the requirements of the automatic packaging line

Solution: When designing with the characteristics of automatic packaging line, choose different pressure lines. When the standard type of knife can not meet the user's requirements, the knife must be reformed. In order to meet the flexible requirements of folding, point-line type crimping knife is more commonly used in automatic packaging products, but sometimes the commonly used point-knife can not meet the specific needs of a certain location, you can use a flat knife line cutting process The solution to this problem.

Fold back after folding

Solution: Improve the quality of the press line and use the above three methods. Adjusted to box size, box height and package height must match.

Poor adhesion

Solution: Avoid the printing at the joint when designing, otherwise it will affect the adhesive effect. At the same time, considering improving the reliability of bonding, a point knife can be installed at the ear and the cover to improve the bonding quality. There are also paper quality and affect the adhesion, bad adhesion should be treated differently, some seemingly like adhesion problems, in fact, caused by the delamination of the paper, should be submitted to the original paper supplier complaints or claims.

The size of the flaps are easily jammed with each other during the folding process

Solution: Take advantage of die cutting, design the beveled edge as a bevel edge, and even design the corner of each flap as a rounded corner, thus avoiding the collision between the flaps during folding.

Printing quality

The general volume of machine bag products is relatively large, tens of thousands or more than 100,000 are normal. In mass production, several products with poor printing quality may be unavoidably mixed, but they are sent to the end customer after packaging. Unqualified products will have a very bad effect, especially some well-known big companies pay great attention to brand image.

Solution: On the one hand, we must control every link in the production process. Production must be the first check against the sample box, and the sampling frequency should be increased. Quality control strengthens patrol inspection and warehousing inspection, and implements full inspection when necessary. Special attention should be paid to the fact that when the printing slotting die cutting machine is shut down and then turned on, the color of the first few new products that cannot meet the requirements must be singled out.

Loss and complaints caused by improper loading and unloading of products

Solution: Packaging products are usually packaged in trays, so it is important to choose the right tray. According to the product specifications and loading methods to determine a number of different specifications of the tray, one must consider the size of the product placed and the tray may be the same, large trays and small products are close to the gap between the two trays, the transport process is prone to tilt caused The product is damaged due to damage to the packaging, and large products with small trays cause damage to the bottom product. The second is to give consideration to the loading and unloading volume of transport vehicles. If the size of the pallets is determined to be unreasonable, the volume of loading and unloading will be reduced, which will increase transportation costs. In addition, it is necessary to make a thin film after the tray is opened. Although this will increase the cost, it can protect the product from damage and ensure that the goods are delivered to the user in an intact manner, which is considered overall or cost-effective.

Source: Huayin Carton Network