Releasing mechanism and leveling apparatus

Abstract

A release mechanism for use in a leveling apparatus that performs a leveling process on a work object that has been wound in a coil configuration as a result of the work object being passed between a front side work roll in contact with the front side surface of the work object and a back side work roll that is in contact with the back side surface of the work, wherein the releasing mechanism switches between a work clamp state that allows performance of the leveling process and a release state that releases the work object from the clamp state by displacing a work roll support member that supports one of the work rolls relative to the another support member to change a distance between the work rolls by utilizing rotational movement of an electric motor.

Description

technical field [0001] The present invention relates to a workpiece release mechanism used in a straightening treatment device (leveler) for correcting (correcting) deformation of a workpiece such as winding wrinkles (defects), and a straightening treatment device provided with the release mechanism. Background technique [0002] For example, in the case of pressing a workpiece wound into a coil (e.g., a long plate-shaped metal material), it is necessary to transport it to a press processing device at a predetermined transport speed while correcting its winding wrinkles. As devices for this purpose, various so-called leveling feed devices have been proposed. [0003] In addition, when positioning the workpiece in the stamping processing device, from the perspective of seeking accurate positioning and preventing deformation of the workpiece, it is required that the leveling feed device move the workpiece from the above-mentioned position in the plane or at least in the direct...

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned devices described in Japanese Patent Laying-Open No. 10-94830 and Japanese Patent Laid-Open No. 5-70719 are released by the cylinder in conjunction with the stamping process carried out in a short cycle, so the switching of the solenoid valve The sound and the collision sound of the cylinder end are loud, so it is necessary to suppress the noise and improve the working environment

[0008] In addition, in the case of the cylinder, there is a long lag time from when the clamping signal for releasing and clamping the workpiece is issued to the leveling and feeding device until the actual working pressure rises to a specified value, so it cannot be used in practice. The release action satisfies the requirement of increasing the number of strokes per unit time (speeding up) during press processing

[0009] As described in Japanese Patent Application Laid-Open No. 5-88706, the device that rotates the eccentric shaft by the motor to perform the release action is preset to an eccentric amount commensurate with the release action, and because the eccentric amount needs to be replaced with an eccentric shaft in order to change the eccentric amount. Due to the different eccentric shafts, it is difficult to perform a large opening movement

Therefore, for example, when the roller is cleaned or the workpiece is passed through the leveling and feeding device, it is necessary to separately provide a mechanism for performing the opening operation separately from the release mechanism that rotates the eccentric shaft by the motor, thereby increasing the size and complexity of the device, and reducing the cost. , setup, assembly, maintainability, etc.

Images