Production line of electromagnetic heating corrugated board

Abstract

The invention discloses a production line of an electromagnetic heating corrugated board. The electromagnetic heating corrugated board comprises a base paper support (1), a tissue paper preheater (2), a single-side machine (3), a core paper preheater (4) and a base paper support (70) which are sequentially arranged from front to back, wherein the upper ends of the base paper support (1) and the base paper support (70) are provided with a paper-passing platform bridge (63), the tissue paper preheater (2) and the core paper preheater (4) both comprise two parallel wallboards (12) between which a preheating roller (13) and a paper guiding roller (14) are arranged, an insulating layer (15), a coil (16) and a heat insulating layer (17) are sequentially arranged in the preheating roller (13) from outside to inside, and the coil (16) and a variable frequency power supply are connected to form a conducting loop. The invention has the advantages of energy saving, environmental protection, small influence on working environment, high heating speed, convenient control, long service life, low maintenance expense, stable production performance, safety and reliability and easy generalization and application.

Description

technical field [0001] The invention belongs to the technical field of corrugated cardboard box packaging, and in particular relates to an electromagnetic heating corrugated cardboard production line. Background technique [0002] The packaging machinery industry is one of the important pillar industries of my country's national economy. Corrugated cardboard is light and beautiful, suitable for large-scale production, especially easy to recycle and reuse. With the rapid development of the national economy, the scale and technical level of the domestic carton packaging industry have increased rapidly. [0003] my country's corrugated box packaging is an industry with large scale, high energy consumption and large pollution sources. At present, my country's annual production of corrugated cardboard exceeds 20 billion square meters, second only to the United States, and the output of corrugated cardboard boxes occupies the second place in the world. There are more than 7,000...

AI Technical Summary

Problems solved by technology

Among them, liquefied gas heating is also more polluting, and oil heating and resistance wire heating production lines also restrict their development due to problems such as low thermal efficiency, large heat loss, waste of electric energy, air pollution, short service life, and high maintenance costs.

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