Drum-type sander and sand cylinder suitable for drum-type sander

Drum-type sander and sand cylinder suitable for drum-type sander

  • CN 106,808,347 B
  • Filed: 06/29/2016
  • Issued: 08/27/2021
  • Est. Priority Date: 11/30/2015
  • Status: Active Grant
First Claim
Patent Images

1. A roller sander, comprising:

  • the sand cylinder is used for installing sand paper;

    the output piece is used for driving the sand cylinder to rotate around the central axis;

    the motor is used for driving the output piece to rotate around the central axis;

    a housing for accommodating the motor;

    wherein the sand cartridge is connected to the output, the output extending out of the housing, the housing forming a handle for gripping by a user;

    the method is characterized in that;

    the shell extends along the central axis and is in a straight-line structure;

    the sand section of thick bamboo includes;

    the fixed cylinder body is provided with a fixed arc surface and a fixed clamping part;

    the movable cylinder is provided with a movable arc surface and a movable clamping part;

    the movable cylinder body and the fixed cylinder body form rotary connection, so that the fixed clamping part and the movable clamping part are butted or separated to clamp or release the abrasive paper;

    the fixed clamping part is connected with a fixed contact element, the movable clamping part is connected with a movable contact element, and the fixed contact element and the movable contact element are respectively arranged at different radial positions of the sand cylinder;

    decide the clamping part and still include;

    a fixed guide plane for guiding the sandpaper into contact with one of the fixed contact member or the movable contact member;

    the movable clamping part further comprises;

    a movable guide plane for guiding the sandpaper into contact with one of the fixed contact member or the movable contact member;

    the output part drives the sand cylinder to rotate towards the direction pointed by the acute angle;

    when the fixed clamping part is in butt joint with the movable clamping part, the fixed arc surface and the movable arc surface are on the same cylindrical surface taking the central axis as the center, the fixed contact piece and the movable contact piece are positioned in the cylindrical surface, the fixed contact piece is in contact with the movable clamping part, and the movable contact piece is in contact with the fixed clamping part;

    when the movable cylinder rotates towards the direction in which the acute angle formed by the fixed guide plane and the fixed arc surface is pointed, the fixed clamping part is separated from the movable clamping part.

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