Sewing machine for sewing ultra-wide thick plate belt materials

Abstract

A sewing machine for sewing ultra-wide thick plate belt materials comprises a frame, an upper punching shear device and a lower punching shear device mounted on the frame, the upper punching shear device comprises an upper bottom plate, an upper mould clamp plate fixedly mounted on the upper bottom plate, an upper pressure plate connected with the upper mould clamp plate by an upper elastic device, and an upper punch fixedly mounted on the upper mould clamp plate, the top of the upper punch is arranged into an upper guide hole aranged on the upper pressure plate; the lower punching shear device comprises a lower bottom plate, a lower mould clamp plate fixedly mounted on the lower bottom plate, a lower pressure plate connected with the lower mould clamp plate by a lower elastic device, and a lower punch fixedly mounted on s the lower mould clamp plate; a punching shear hydraulic cylinder is arranged between the lower bottom plate and the frame, the upper bottom plate is connected by the lower bottom plate by a guide shaft, the punching shear cutting edge curves of the upper punch and the lower punch are approximately circular curves fit by multiple points. The sewing machine for sewing ultra-wide thick plate belt materials of the invention can be suitable for punching and sewing thin and narrow belt materials and ultra-wide thick plate belt materials.

Description

technical field [0001] The invention relates to a device for connecting strips processed after cold rolling, in particular to a sewing machine for stitching ultra-wide and thick plates and strips. Background technique [0002] At present, the cold rolling of the strip and the subsequent finishing treatment technology of the cold rolling are an important and widely used technology in the modern strip production industry. The continuous production process of the strip is currently widely used in the world and has a large demand. A production technology, such as pickling continuous rolling unit, stretch bending straightening unit, continuous annealing unit and coating unit, etc. The common feature of each production unit in the strip cold rolling and the continuous finishing treatment line after cold rolling is that it is necessary to ensure the continuous production of the strip to avoid frequent and slow manual leading work, so these units should be equipped with Strip joint...

AI Technical Summary

Problems solved by technology

Therefore, for plates and strips of the same thickness, if the edge has more edges, the impact on the punching shear force will be greater, and the punching quality of the edge will be worse.

In addition, according to the existing use and related experiments, when the superimposed thickness of the punching and shearing plate reaches 6mm, the punching and shearing force will reach 600t~700t, and the punching and shearing edge has obvious fracture burrs, which is not conducive to the operation of the sewing machine and strip production

Therefore, the punching and shearing sewing technology for the existing plate and strip is far from meeting the requirements of punching and shearing for the production of ultra-wide and thick plate and strip.

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