Fast perforated sandpaper-replacing device

Abstract

The present invention discloses a fast-perforated sandpaper-replacing device, which is used to attach a perforated sandpaper to a grinder. The device of the present invention comprises a casing. The casing has a through-hole, an aligner installed on its surface, and a movable member installed thereinside. An elastic element is arranged between the movable member and the bottom of the casing. A perforated sandpaper alignment device, which penetrates the through-hole, is coupled to the movable member. A grinder is aligned to the fast-perforated sandpaper-replacing device with the aligner. When pressed by a force, the grinder further presses down the movable member and the elastic element and moves toward the perforated sandpapers accommodated by the alignment device. Thus, the grinding disc of the grinder can precisely stick onto the topmost perforated sandpaper.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a sandpaper-replacing device, particularly to a fast-perforated sandpaper-replacing device, whereby a grinder can be fast aligned to and stuck onto a perforated sandpaper.BACKGROUND OF THE INVENTION [0002]For a conventional grinder with autonomous dust suction function, refer to a R.O.C. patent of Publication No. 339717, which proposed “Grinding Device with Autonomous Dust Suction Function”. The conventional device comprises: a body, a cover, an intake pipe, an exhaust pipe, and dust-suck pipe. The body has a pneumatic motor, and the pneumatic motor is coupled to a grinding disc with multiple dust-suck holes, a perforated sandpaper is attached to the grinding disc. The cover surrounds the rim of the grinding disc and has an opening used to exhaust the dust generated in the grinding operation. The intake pipe is installed on the surface of the body and connected with a compressed-air pipe, and the compressed-air pipe is con...

AI Technical Summary

Benefits of technology

[0005]Another objective of the present invention is to provide a fast-perforated sandpaper-replacing device, wherein the fast-perforated sandpaper-replacing device of the present invention has an aligner; a grinder can be precisely aligned to the fast-perforated sandpaper-replacing device with the aligner, and then, the grinder is pressed against a perforated sandpaper alignment device and precisely attached to the perforated sandpaper put on the alignment device; thereby, the efficiency of replacing perforated sandpapers can be greatly promoted.

[0006]The present invention proposes a fast-perforated sandpaper-replacing device, which comprises a casing. The casing has a through-hole, an aligner installed in its surface, and a movable member installed thereinside. An elastic element is arranged between the movable member and the bottom of the casing. A perforated sandpaper alignment device is coupled to the movable member. A grinder is aligned to the fast-perforated sandpaper-replacing device with the aligner. When pressed by a force, the grinder further presses down the movable member and the elastic element and moves toward the perforated sandpapers accommodated by the alignment device. Thus, the grinding disc of the grinder can precisely stick onto the topmost perforated sandpaper.

Problems solved by technology

However, in practical operation, it is hard to exactly integrate the perforated sandpaper with the grinding disc of the grinder.

Therefore, the conventional technology not only obviously inconveniences the user but also greatly reduces the working efficiency.

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