Belt sander with constant-tensity sanding belt

Abstract

The invention discloses a belt sander with a constant-tensity sanding belt. The belt sander comprises a base provided with a bracket and a sliding rail; a sliding clamp is arranged on the sliding rail; the bracket is provided with a support rod consisting of a sleeve and a telescopic rod; a sanding belt driving motor and a second air cylinder are respectively fixedly arranged on the telescopic rod and the sleeve; an output rod of the second air cylinder is fixedly connected with the sanding belt driving motor; the output end of the sanding belt driving motor is connected with a sanding belt wheel; a rotating shaft provided with an oscillating frame is rotatably connected to the bracket; the oscillating frame is provided with a sanding belt roller and an outline guide wheel, wherein the sanding belt roller is matched with the sanding belt wheel to arrange the sanding belt in a sleeving manner; a first connecting rod is fixed on the rotating shaft; a first air cylinder which is pivotally connected with the first connecting rod is pivotally connected to the bracket; the first air cylinder pushes the first connecting rod to drive the rotating shaft to rotate, so that the oscillating frame has a trend of oscillating downwards; a second connecting rod is pivotally connected with the first connecting rod through a transfer frame; the hole location for pivotal connection on the transfer frame is a strip-type groove; the other end of the second connecting rod is pivotally connected with the sanding belt driving motor.

Description

technical field [0001] The invention relates to an abrasive belt machine for sharpening knives and scissors, in particular to an abrasive belt machine with constant tension of the abrasive belt. Background technique [0002] For knives such as kitchen knives, scissors, etc., traditional manual sharpening is basically rare. Switching to a knife sharpener for automatic sharpening of the blade and knife surface not only greatly improves the sharpening efficiency, but also improves the consistency and stability of the quality of the knife. Easier to secure and control. [0003] However, the sharpening machine is mainly aimed at trimming the blade surface and blade of the knife, but cannot trim the back of the knife. In fact, the back of the knife often has some burrs or unevenness, which requires grinding after the knife is finished. The back of the knife is further processed and ground to improve the quality and appearance of the knife. [0004] However, in the prior art, the...

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Problems solved by technology

[0003] However, the sharpening machine is mainly aimed at trimming the blade surface and blade of the knife, but cannot trim the back of the knife. In fact, the back of the knife often has some burrs or unevenness, which requires grinding after the knife is finished. Further processing, grinding and trimming of the back of the knife can improve the quality and appearance of the knife

[0004] However, in the prior art, the position of the back of the knife still mainly relies on manual grinding and trimming. Manual operation not only makes the quality of the knife unable to be guaranteed in terms of consistency and stability, but also has low processing efficiency and cannot meet mass production.

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