Strip workpiece cutting device and cutting method

Abstract

The invention provides a strip-shaped disconnecting device of a workpiece and a disconnecting method of the workpiece. The device comprises a baseboard, a formwork, an upper cover plate, a fixed die block and a movable die block. The fixed die block and the movable die block are stacked up together and a workpiece passageway is arranged between the fixed die block and the movable die block. The fixed die block is fixedly installed inside the formwork. The movable die block is an entity extending along the intersecting surface of the movable die block. The intersecting surface of the movable die block comprises polygon equipped with at least four tilt working edges forming into four smooth working slopes. An upper left locating block, a lower right locating block, a lower left sliding block and an upper right sliding block are installed on the four smooth working slants which are fitted with each working slant. The lower left sliding block is connected with a pressed spring. The upper right sliding block penetrates through a gap of the upper cover plate. Regular octagon of the intersecting surface of the movable die block is the best. The disconnecting device is suitable for in-line disconnecting fashioned workpiece of sheet metal on line. The device has the advantages of being high in disconnecting precision, stable in disconnecting movement, high in operation efficiency, small in workpiece deformation, not producing disconnecting fragments and being particularly suitable for continuous disconnecting of the workpieces which are on the production line of the rolling depression of automobile frame.

Description

technical field [0001] The invention relates to a strip workpiece cutting device and a cutting method, in particular to a continuously moving workpiece cutting method on an automobile door frame rolling production line. Background technique [0002] The production line for continuous production of strip-shaped workpieces, such as automobile sealing strip extrusion production line, rolling production line, etc., needs to be equipped with a suitable strip-shaped workpiece cutting device; The workpiece shelving mechanism corresponding to the shape of the workpiece is generally driven by the cylinder to cut the workpiece downward; this cutter-type cutting device is suitable for strip-shaped workpieces that are easier to cut, such as for cutting on a pure press production line, all of which are made of organic elastomer materials. The sealing strip can also be used to cut the sealing strip made of organic elastomer material containing metal skeleton on the re-pressing production ...

AI Technical Summary

Problems solved by technology

[0002] The production line for continuous production of strip-shaped workpieces, such as automobile sealing strip extrusion production line, rolling production line, etc., needs to be equipped with a suitable strip-shaped workpiece cutting device; The workpiece shelving mechanism corresponding to the shape of the workpiece is generally driven by the cylinder to cut the workpiece downward; this cutter-type cutting device is suitable for strip-shaped workpieces that are easier to cut, such as for cutting on a pure press production line, all of which are made of organic elastomer materials. The sealing strip can also be used to cut the sealing strip made of organic elastomer material containing metal skeleton on the re-pressing production line; its advantage is that it has good versatility. Generally, as long as the cutting knife is wide enough, it can be used for sealing of various specifications. However, for the online workpieces such as automobile door frames that are completely rolled from hard metal sheets, this cutter-type cutting device is obviously not suitable.

There is also a saw wheel type cutting device, which uses the saw wheel to complete the cutting of the workpiece, which will generate sawing debris, take a long time for cutting, affect the work efficiency of the production line, and easily deform the cutting end.

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