Automatic sandpaper replacement device for cnc production line

Abstract

The present invention discloses an automatic sandpaper replacement device for CNC production line, comprising an automatic sandpaper supply mechanism which comprises a bracket assembly, and a sandpaper receiving assembly and a sandpaper extracting plate disposed on bracket assembly; and an automatic sandpaper peeling mechanism that is mated with bracket assembly, and comprises a mounting plate, and a peeling drive assembly and a peeling assembly mounted on mounting plate; wherein peeling assembly is drivingly connected with peeling drive assembly, peeling assembly periodically peels off waste sandpaper on a sanding head under driving of peeling drive assembly, and sandpaper extracting plate periodically supplies new sandpaper to sanding head after peeling off sandpaper. The automatic sandpaper replacement device improves peeling efficiency, effectively solves problems of uncleanly peeling and peeling residue, saves cost, solves sandpaper jamming problem in a sandpaper supply process, and improves sandpaper replacement efficiency and success rate, thereby further improving productivity.

What is claimed is: 
     
         1 . An automatic sandpaper replacement device for CNC production line, being characterized in that it comprises:
 an automatic sandpaper supply mechanism, the automatic sandpaper supply mechanism comprising a bracket assembly, and a sandpaper receiving assembly and a sandpaper extracting plate disposed on the bracket assembly; and   an automatic sandpaper peeling mechanism that is mated with the bracket assembly, the automatic sandpaper peeling mechanism comprising a mounting plate, and a peeling drive assembly and a peeling assembly mounted on the mounting plate;   wherein the peeling assembly is drivingly connected with the peeling drive assembly, the peeling assembly periodically peels off waste sandpaper on a sanding head under driving of the peeling drive assembly, and the sandpaper extracting plate periodically supplies new sandpaper to the sanding head after peeling off sandpaper.   
     
     
         2 . The automatic sandpaper replacement device for CNC production line according to  claim 1 , being characterized in that, the bracket assembly comprises a base plate and a sandpaper extracting driving part, and the sandpaper receiving assembly and the sandpaper extracting plate are disposed on the base plate. 
     
     
         3 . The automatic sandpaper replacement device for CNC production line according to  claim 2 , being characterized in that, the sandpaper receiving assembly comprises a sandpaper receiving canister and a sandpaper pressing block, the sandpaper extracting plate is slidably connected to the base plate, and the sandpaper receiving canister is provided with a first through hole running through the upper and lower ends of the sandpaper receiving canister so that the upper end and the lower end of the sandpaper receiving canister are both open. 
     
     
         4 . The automatic sandpaper replacement device for CNC production line according to  claim 2 , being characterized in that, the bottom of the sandpaper receiving canister is provided with a second through hole running through the left and right sides of the sandpaper receiving canister so that the bottom of the sandpaper receiving canister is provided with a left through opening and a right through opening, the sandpaper pressing block is slidably disposed in the first through hole, the sandpaper extracting plate is passed through the second through hole, and the sandpaper extracting plate can be reciprocally slide along the base plate under driving of the sandpaper extracting driving part. 
     
     
         5 . The automatic sandpaper replacement device for CNC production line according to  claim 1 , being characterized in that, the mounting plate is mated with the bracket assembly and extends in a vertical direction, and the peeling assembly comprises a peeling mounting plate and a peeling plate fixedly mounted on the peeling mounting plate, wherein the peeling mounting plate extends in a vertical direction, the peeling mounting plate is drivingly connected to the peeling drive assembly, and the peeling plate can be reciprocated in a vertical plane with the peeling mounting plate under driving of the peeling drive assembly. 
     
     
         6 . The automatic sandpaper replacement device for CNC production line according to  claim 5 , being characterized in that, a fitting plate is fixedly mounted on the peeling mounting plate, and the fitting plate is located directly below the peeling plate. 
     
     
         7 . The automatic sandpaper replacement device for CNC production line according to  claim 6 , being characterized in that, the peeling plate and the fitting plate are located in the same vertical plane, and are spaced apart to form a sandpaper collecting space between them. 
     
     
         8 . The automatic sandpaper replacement device for CNC production line according to  claim 6 , being characterized in that, a lower edge of the peeling plate is provided with a peeling guide slope extending obliquely upward along the inner side of the peeling plate, and an angle θ between the peeling guide slope and the vertical plane is as follows:
 3°≤θ≤8°. 
 
     
     
         9 . The automatic sandpaper replacement device for CNC production line according to  claim 6 , being characterized in that, a sandpaper guiding structure having a mountain-shaped cross section is integrally formed at an upper edge of the fitting plate, and the sandpaper guiding structure comprises:
 a first guiding slope extending obliquely upward on the outer side of the fitting plate, the first guiding slope being inclined to the inner side of the fitting plate; and   a second guiding slope extending obliquely upward on the inner side of the fitting plate, the second guiding slope being inclined to the outer side of the fitting plate;   wherein an angle α between the first guiding slope and the vertical plane and an angle β between the second guiding slope and the vertical plane are as follows:   15°≤α≤30°, 5°≤β≤15°.   
     
     
         10 . The automatic sandpaper replacement device for CNC production line according to  claim 2 , being characterized in that, a sandpaper extracting groove is disposed on an upper surface of the sandpaper extracting plate, the sandpaper extracting groove is located at one end of the sandpaper extracting plate, and the sandpaper extracting groove is selectively mated with the first through hole in the process of reciprocally sliding of the sandpaper extracting plate along the base plate.