Protective door device and sealing strip sawing machine

Abstract

A protective door device is located on an operative surface of machining equipment and comprises a moving door (1) capable of being moved up and down and a rotating door (2) capable of rotating along the upper edge of the operative surface, the moving door (1) and the rotating door (2) are driven by a moving door drive air cylinder (4) and a rotating door drive air cylinder (5) respectively, the rotating door drive air cylinder (5) is obliquely installed between a ceiling (8) and the rotating door (2), and the bottom end of the rotating door drive air cylinder (5) or the outer end of a piston rod (6) of the rotating door drive air cylinder (5) is fixedly connected with the ceiling (8) or the rotating door (2) respectively through a hinge pair (7). When the moving door (1) is located on the upper limitation position, the rotating door (2) is located at a vertical position, the lower edge of the rotating door (2) makes contact with the upper edge of the moving door (1), and the protective door device is in a closed state; when the moving door (1) is located on the lower limitation position, the rotating door (2) is located at a limit position of a tilt angle which swings inwards, and the protective door device is in an open limit state.

Description

technical field [0001] The invention relates to a protective door device suitable for machining equipment, and also relates to a sawing machine used for sawing sealing strips of automobiles. Background technique [0002] The safety of machining equipment is of paramount importance. At present, the machining equipment is generally equipped with a protective door device, which is opened when loading and unloading, and closed when starting to process. Since the protective door needs to accommodate the upper body of the operator and the workpiece to enter and exit conveniently, the protective door needs a large area; the traditional revolving door that rotates around the door shaft, whether it is a single door or a symmetrical double door, will seriously affect the operating space; the traditional A sliding door that moves horizontally requires a space next to the sliding door to accommodate the sliding door, and the opening area is at most only half of the operating surface of...

AI Technical Summary

Problems solved by technology

Since the protective door needs to accommodate the upper body of the operator and the workpiece to enter and exit conveniently, the protective door needs a large area; the traditional revolving door that rotates around the door shaft, whether it is a single door or a symmetrical double door, will seriously affect the operating space; the traditional The sliding door that moves horizontally requires a space to accommodate the sliding door, and the opening area is only half of the operating surface of the machining equipment at most, which is often difficult to meet the operating needs

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