烟台丸木机械有限公司

The quality of corrugated cardboard reflects a company's production. The corrugated cardboard production line, as a key production process for corrugated boxes, plays a crucial role in the cost and quality of the products. It is also a variable and difficult-to-control link among all production processes. Only by systematically addressing the five factors of people, machines, materials, methods, and environment can the generation of waste in the corrugated cardboard production line be reduced, and high-quality products be manufactured.

People are the key factor and also an unstable factor. This emphasizes two main aspects: the team spirit of the operators on the corrugated cardboard production line and their individual operational skills.

The corrugated cardboard production line integrates steam, electricity, hydraulics, air, and machinery into a production line, involving several key processes such as single-sided machines, conveyor bridges, gluing composites, drying, pressing lines, and both longitudinal and transverse cutting. Any misalignment in one of these links can affect the operation of the entire production line, which requires operators to have a strong sense of teamwork and a spirit of cooperation.

Currently, most technical personnel operating the corrugated cardboard production line have gradually developed their skills through experience in production, lacking formal training in operational skills and knowledge of equipment management. They are not sufficiently adept at predicting and preventing potential hazards. Therefore, companies should prioritize skill training for personnel on the corrugated cardboard production line and provide training on the relevant basic knowledge of corrugated boxes. They should invest in bringing in experts or sending personnel out for learning, and focus on talent development, establishing a unique corporate culture to attract high-level technical talent for the corrugated cardboard production line, thereby enhancing the company's cohesion and employees' sense of identity.

Stable operation of equipment is the foundation of corrugated cardboard production. In this regard, companies should approach their work from the following angles:

1. Equipment maintenance and upkeep are the primary tasks.

Abnormal downtime of the corrugated cardboard production line can generate a large amount of waste, leading to reduced production efficiency and increased production costs. Maintenance and upkeep of equipment are methods to reduce downtime.

2. Daily maintenance.

Whether the equipment can operate normally largely depends on the adequacy of daily maintenance. The general principles of equipment maintenance are: sufficient lubrication, complete cleanliness, and careful attention to detail.

The corrugated cardboard production line has hundreds of lubrication points, which can be divided into oil-lubricated and grease-lubricated points based on the type of lubricant used. Different lubrication points should strictly use the corresponding lubricants and ensure they are adequately lubricated. For example, if the temperature of the corrugated rollers and pressure rollers is high, high-temperature grease should be used.

The cleaning of equipment also plays an important role in maintenance, closely related to the lubrication condition of the equipment. It should mainly ensure that there is no dust or debris, avoiding accelerated wear or damage to components due to dust and debris.

3. Repair work.

The equipment department should develop and implement detailed repair plans based on the problems encountered during equipment use to ensure stable operation.

4. Management of easily damaged parts.

Real-time monitoring of easily damaged parts is very important. Companies should establish tracking logs for the use of easily damaged parts, conduct real-time monitoring and analysis, identify the reasons for rapid wear of these parts, and develop countermeasures to enable proactive prevention, avoiding unplanned downtime due to damaged parts.

In general, the management of easily damaged parts should take the following two measures: first, change the material and manufacturing process of the easily damaged parts to extend their service life; second, use them in a reasonable environment to reduce damage caused by human and environmental factors. 5. Emphasize the new transformation of key components of the equipment.

In recent years, technological innovations in the corrugated cardboard production line have emerged one after another, with new technological highlights prompting companies to focus on the new transformation of key components of the corrugated cardboard production line.

6. Production management system.

Using a production management system for the corrugated cardboard production line to control production costs can accurately calculate the production efficiency of the corrugated cardboard production line and achieve synchronized speed across the entire production line. Generally, it can reduce the waste rate of corrugated cardboard by more than 5%, and the amount of starch used is also significantly reduced.

① Automatic paper feeder.

Using an automatic paper feeder to handle paper can avoid waste during paper handling, reduce downtime and quality issues in the corrugated cardboard production line, and ensure stable high production speed and high cardboard quality throughout the production line.

② Tungsten carbide corrugated rollers.

As the heart of the single-sided machine, the corrugated roller plays a decisive role in the quality of corrugated cardboard and directly affects economic benefits. Tungsten carbide corrugated rollers use thermal spraying technology to melt and spray tungsten carbide alloy powder onto the tooth surface of the corrugated roller, forming a tungsten carbide coating, which lasts 3 to 6 times longer than ordinary corrugated rollers. Throughout the lifespan of the roller, its corrugation height remains almost unchanged, stabilizing the quality of the corrugated cardboard and reducing the use of corrugated core paper and glue by 2% to 8%, thereby lowering waste generation.

③ Glue machine pressure rod.

The glue machine pressure rod is made of many wear-resistant arc-shaped plates connected with springs. The spring's elasticity keeps the arc-shaped plates evenly pressed against the glue roller, even if the glue roller wears and sinks, the spring plates will follow the sinking, ensuring that the corrugated core paper is evenly pressed against the glue roller. Additionally, the balanced spring will automatically adjust the height according to the thickness of the base paper and the change in corrugation shape, keeping the corrugation height of the core paper consistent when entering and exiting the glue machine, controlling the glue amount and greatly improving cardboard quality.

④ Hot plate pressure plate.

The hot plate pressure plate replaces the traditional gravity roller pressure heat transfer method. It is made of specially designed wear-resistant material plates, each equipped with a balanced spring, allowing each plate to press against the hot plate, increasing the heating area of the cardboard, improving heat transfer efficiency, thus increasing speed, maintaining good corrugation shape, enhancing the strength of the corrugated cardboard, and increasing its thickness. The cardboard does not delaminate, does not bubble, adheres well, and reduces the waste rate.

⑤ Automatic glue-making system.

The paste-making process is a key step in the entire production process that experiences significant fluctuations and has a critical impact on the quality of the cardboard. Traditional paste-making formulas are simple and can easily lead to inaccurate material addition due to human factors, resulting in unstable adhesive quality. The automatic paste-making system is a typical integrated system that combines processes, machinery, and automatic control. It can handle the formula functions, historical data, real-time data, dynamic monitoring functions, and human-machine dialogue within the paste-making system. The quality of the paste is stable and controlled, which can stabilize the operation of the production line, reduce human factors, solve quality issues such as cardboard bubbling, transparency, and softness, and lower the defect rate.