Sand-belt finishing machine having dust clearing function

Abstract

A sand-belt finishing machine includes two opposite grinding devices arranged in parallel with each other and each including two opposite rollers and a sand belt reeved around the two rollers, and a dust clearing device mounted between the two grinding devices. Thus, the wooden board is placed on a single main frame and is processed by a single working procedure to synchronously obtain a double surface treatment, including the rough working treatment and the finishing treatment, thereby greatly simplifying the working process.

1 . A sand-belt finishing machine, comprising: 
 two opposite grinding devices arranged in parallel with each other and each including two opposite rollers, and a sand belt reeved around the two rollers.    
   
   
       2 . The sand-belt finishing machine in accordance with  claim 1 , further comprising a dust clearing device mounted between the two grinding devices.  
   
   
       3 . The sand-belt finishing machine in accordance with  claim 2 , wherein the dust clearing device includes a hood mounted between the two grinding devices, and a suction member mounted on the hood.  
   
   
       4 . The sand-belt finishing machine in accordance with  claim 1 , further comprising a wooden board mounted between a space between the two grinding devices and a delivery platform and being in contact with the sand belts of the two grinding devices, so that the contact position between the sand belts of the two grinding devices and the wooden board form a closed state.  
   
   
       5 . The sand-belt finishing machine in accordance with  claim 1 , wherein the sand belts of the two grinding devices have different thickness.  
   
   
       6 . The sand-belt finishing machine in accordance with  claim 1 , wherein the two rollers of each of the two grinding devices are spaced from each other and are arranged in parallel with each other.