Vertical coil tongs having centering and guiding device

Abstract

The invention relates to vertical coil tongs having a centering and guiding device. The vertical coil tongs comprise a tong arm, an outer tong tooth located at the front end of the tong arm, and an inner tong tooth in movable connection with the tong arm, wherein the inner tong tooth is provided with the centering and guiding device, the centering and guiding device includes an integrally inverted-cone-shaped guide cylinder, a groove is disposed at the lower part of the guide cylinder, a laser emitter is arranged in the groove, and a light beam emitted from the laser emitter is coincident with the perpendicular bisector of the inner tong tooth. The invention has simple structure and convenient use, and can avoid damage to the coil core and the steel coil end face, improve yield, and reduce production costs and labor intensity. In addition, the guide cylinder has a hollow structure inside, which saves raw materials. Advantages of the invention also include simple manufacturing, low cost, convenient installation, strong practicability, and high generalization and application values.

Description

technical field [0001] The invention relates to a vertical roll clamp, in particular to a vertical roll clamp with a centering and guiding device. Background technique [0002] In the bell furnace annealing process, first of all, 3 to 5 or more vertically placed steel coils that need to be annealed must be arranged vertically, and then the furnace cover can be used for annealing. In the process of arranging steel coils, special vertical coil tongs must be used to stack and reverse the steel coils. The vertical coil clamp is a hoisting tool specially used for lifting and transporting the coiled plate in an upright state. The commonly used vertical coil clamp includes a clamp arm, an outer jaw located at the front end of the jaw, and an inner jaw corresponding to the outer jaw. Inlays, and a shutter that controls the vertical coil clamp to open the clamp or clamp the steel coil. In long-term use, it is found that the inner jaws of the vertical coil clamp often damage the co...

AI Technical Summary

Problems solved by technology

In long-term use, it is found that the inner teeth of the vertical coil clamp often damage the coil core and the end face of the steel coil, which causes unnecessary damage to the quality of the steel coil to a certain extent.

According to statistics, the quality damage rate of steel coils caused by vertical coil clamps is about 1 / 1000 every year, which seriously restricts the yield of cold-rolled products and indirectly leads to the increase of production costs. At the same time, the damaged steel coil core needs manual labor. Cutting can be used for normal production, which not only increases the workload of workers, but also consumes time, which is not conducive to the continuous production of the next process

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