Manufacturing device and manufacturing method of wavy sheet for steel structure of heat exchange system

Abstract

The invention provides a manufacturing device and a manufacturing method of a wavy sheet for a steel structure of a heat exchange system, and the device is structurally characterized in that an upper row and a lower row of wavy wheels in the same shape with the wavy sheet, two groups of positioning wheels, one group of leveling wheels, one group of shaping wheels and an adjusting frame are arranged, wherein the shape of each wavy wheel is gradually changed from a cylinder to the shape of the wavy sheet; the two groups of positioning wheels and the one group of leveling wheels are arranged at the front ends of the wavy wheels so as to ensure the correct relative positions of a wavy sheet material and the wavy wheels; and the one group of shaping wheels and the adjusting frame are arranged at the tail ends of the wavy wheels so as to ensure the correct shaping of the wavy sheet. By adopting the manufacturing device and the manufacturing method, the traditional processing mode is thoroughly changed, the complex die manufacturing is abandoned, the stability of the product quality is improved, and the shaping wheels and the adjusting frame can be suitable for different materials so as to enable the product quality to be stable and reliable. The cost is greatly reduced, and a strip-shaped steel coil of the preset fixed size is adopted for replacing the cutting of a steel plate in the traditional process, thereby avoiding the waste of working time and the waste of remnants caused by cutting of the plate.

Description

technical field [0001] The invention relates to a manufacturing device and a manufacturing method of a corrugated sheet for a steel structure of a heat exchange system, belonging to the technical field of mechanical manufacturing. Background technique [0002] The steel structure of the heat exchange system is mostly used in cooling systems such as power plants, and the corrugated sheets used in this structure are indispensable parts in the cooling system. It is made of steel plate of about 2mm, the length is usually about 2m, the width is generally about 220mm, and it is wavy. The cooling system of each power plant requires tens of thousands of pieces. The corrugated sheet has high technical requirements and a large quantity. It requires an angle error of 0.5mm and a flatness error of 2mm within 2m, which is a difficult point in the manufacturing process of the steel structure of the heat exchange system. For example, figure 1 shown. [0003] The manufacturing of corrugat...

AI Technical Summary

Problems solved by technology

The traditional process of pressing and forming corrugated sheets on a hydraulic press with a special mold has many insurmountable shortcomings: 1. Low production efficiency: the production process of the traditional production process is divided into: shearing (1min), punching (0.5min), pressing Forming (divided into mold opening, sheet metal positioning, pressing, setting, mold opening, mold ejection) (3min), shaping (1min) The production time is about 5.5min per piece

2. Difficulty in making molds: Using traditional manufacturing techniques, the corrugated sheet is deformed after being pressed and formed, so the mold must have an anti-deformation allowance, and this allowance is obtained based on the experimental results

Therefore, the mold must be repaired after the mold is manufactured, and the technology of repairing the mold is complicated and the operation is difficult. If there is no experience, the mold may be scrapped after the mold is repaired.

3. Unstable product quality: Since the material, thickness, and size of the wave sheet production are different in each batch, and the mold is fixed, the product quality is always unstable, and it must be reshaped to ensure the quality

Dies are prone to wear and tear, resulting in unstable product dimensions

4. High cost of materials: the shearing is carried out with plates of common sizes, with many spare parts and large loss

When domestic enterprises produce corrugated sheets, the production process still uses the traditional foreign manufacturing process. Due to its low production efficiency and unstable quality, it has become a bottleneck restricting the production of steel structures for heat exchange systems.

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