Integral up-regulation type pre-bent rolled plate forming device and forming method

Abstract

The invention relates to an integral up-regulation type pre-bent rolled plate forming device and a forming method. The pre-bent rolled plate forming device comprises a plate rolling machine frame, a movable beam and a feeding bracket. A plate rolling main roller is installed on the plate rolling machine frame, one end of the plate rolling main roller is connected to an output shaft of an oil motor through a coupling, and the other end of the plate rolling main roller is connected to an output shaft of a swing oil cylinder through a swing bearing. The movable beam can move up and down in a reciprocating mode in the height direction of the plate rolling machine frame, two pre-bending rollers are installed on the top of the movable beam, the pre-bending rollers are symmetrically arranged on the two sides of the bottom of the plate rolling main roller, and segmented rollers in the pre-bending rollers are installed on the movable beam through roller supports. One end of the feeding bracket is installed on the plate rolling machine frame, and the feeding bracket is located below the plate rolling main roller. According to the provided pre-bent rolled plate forming device, the roller supports are used for blocking the front end of a material plate, so that centering of the plate material is achieved, and the centering mode has the advantages of being simple, convenient and reliable.

Description

technical field [0001] The invention relates to the technical field of coil forming, in particular to an overall upward adjustment type pre-bending coil forming device and a forming method thereof. Background technique [0002] Roll forming is a process of cold bending forming of sheet metal based on the principle of three points forming a circle, which can be used to form parts of different shapes such as cylindrical, elliptical, conical, arc, and U-shaped. [0003] The plate rolling machine is a device that rotates the work roll and bends the plate to form it through the action of external forces such as hydraulic pressure and mechanical force. In the above forming process, the plate is usually pre-bent on the plate rolling machine to prevent skewing In the past, the plates were first centered so that the longitudinal centerline of the plates was strictly perpendicular to the axis of the rollers. At present, the common centering methods are: using side rolls for centering ...

AI Technical Summary

Problems solved by technology

[0003] The plate rolling machine is a device that rotates the work roll and bends the plate to form it through the action of external forces such as hydraulic pressure and mechanical force. In the above forming process, the plate is usually pre-bent on the plate rolling machine to prevent skewing In the past, the plates were first centered so that the longitudinal centerline of the plates was strictly perpendicular to the axis of the rollers. At present, the common centering methods are: using side rolls for centering (on a four-roll plate rolling machine), and using stoppers for centering. Medium; at the same time, because there are remaining straight edges when the sheet is rolled, it is necessary to pre-bend the end of the sheet before rolling. The common pre-bending methods include press bending method and plate rolling machine rolling method, and press The bending method requires additional equipment, and the rolling method of the plate rolling machine is mainly completed by the auxiliary movement of the side rollers in the asymmetrical three-roll and four-roll forming. The existing centering and pre-bending methods not only increase the complexity of the equipment , and due to the added auxiliary motion, the efficiency is reduced

Images