Adjustment structure of upward-opening abrasive cloth rollers

Abstract

An upward-opening abrasive cloth roller has a roller below the abrasive cloth. The system has: a support frame mounted on a machine, a roller is disposed on the support frame, a hollow panel is mounted on the machine, and the first side of the panel is pivotally connected to the machine. The two ends of the support frame are respectively provided with individual height adjustment structures, and a panel level adjustment structure is mounted on the machine on below the second side of the panel. With the above two adjustment structures to adjust the level of the roller and the panel, the plate can be easily adjusted for different grinding depths and angles.

What is claimed is: 
     
         1 . An adjustment structure of upward-opening abrasive cloth rollers comprising:
 a supporting frame mounted on a machine, one end of the supporting frame provided with a first slot connected to a first through hole and another end provided with a second slot connected to a second through hole;   a first wedge block and a second wedge block respectively having a first containment space connected to a first screw hole and a second containment space connected to a second screw hole and disposed respectively in the first and second slots;   a roller having a first bearing and a second bearing at ends thereof;   a first positioning member and a second positioning member respectively mounted at an end of the first and second bearings and respectively disposed in the first and second slots;   a first returning spring and a second returning spring respectively disposed in the first and second containment spaces;   a first screw passing through the first through hole, the first returning spring, the first screw hole, and engaging with the first wedge block;   a second screw passing through the second through hole, the second returning spring, the second screw hole, and engaging with the second wedge block;   a first positioning block mounted above the first slot and having a first positioning groove;   a first positioning spring disposed in the first positioning groove and pushing against the first positioning member;   a second positioning block mounted above the second slot and having a second positioning groove; and   a second positioning spring disposed in the second positioning groove slot and pushing against the second positioning member.   
     
     
         2 . The adjustment structure of upward-opening abrasive cloth rollers as claimed in  claim 1 , wherein two sides of each of the first and second positioning members make contact with the first and second slots and both of the first and second positioning members have two parallel vertical sides and two curved ends. 
     
     
         3 . The adjustment structure of upward-opening abrasive cloth rollers as claimed in  claim 2 , wherein both of the first and second positioning blocks have more than one positioning groove for more than one positioning spring. 
     
     
         4 . The adjustment structure of upward-opening abrasive cloth rollers as claimed in  claim 1  further comprising:
 a hollow panel having a first end pivoted onto the machine and a second end capable of rotation; 
 a third through hole disposed at a sidewall of the machine below the second end of the panel; 
 a C-type fixing member disposed inside the sidewall of the machine and having an upper through aperture and a lower through aperture; 
 an adjustment disk disposed in the C-type fixing member and partially exposed from the third through hole and having an inner thread; 
 a screw passing through the upper through aperture, the adjustment disk, the lower through aperture, and engaging with the adjustment disk; and 
 a supporting member secured above the screw and supporting the second end of the panel. 
 
     
     
         5 . The adjustment structure of upward-opening abrasive cloth rollers as claimed in  claim 2  further comprising:
 a hollow panel having a first end pivoted onto the machine and a second end capable of rotation; 
 a third through hole disposed at a sidewall of the machine below the second end of the panel;
 a C-type fixing member disposed inside the sidewall of the machine and having an upper through aperture and a lower through aperture; 
 an adjustment disk disposed in the C-type fixing member and partially exposed from the third through hole and having an inner thread; 
 a screw passing the upper through aperture, the adjustment disk, the lower through aperture, and engaging with the adjustment disk; and 
 
 a supporting member secured above the screw and supporting the second end of the panel. 
 
     
     
         6 . The adjustment structure of upward-opening abrasive cloth rollers as claimed in  claim 3  further comprising:
 a hollow panel having a first end pivoted onto the machine and a second end capable of rotation; 
 a third through hole disposed at a sidewall of the machine below the second end of the panel; 
 a C-type fixing member disposed inside the sidewall of the machine and having an upper through aperture and a lower through aperture; 
 an adjustment disk disposed in the C-type fixing member and partially exposed from the third through hole and having an inner thread; 
 a screw passing the upper through aperture, the adjustment disk, the lower through aperture, and engaging with the adjustment disk; and 
 a supporting member secured above the screw and supporting the second end of the panel. 
 
     
     
         7 . The adjustment structure of upward-opening abrasive cloth rollers as claimed in  claim 4 , wherein a fourth through hole is disposed above the third through hole, the supporting member has a fifth through hole, and a screw passes through the fifth through hole and the fourth through hole and engages with a packing screw.