Method of removing backing adhesive of carpet and the device thereof

Abstract

Method of removing backing adhesive from a carpet by steps: (1) sorting collected waste carpet into various types according to the surface fiber materials, such as, nylon, PP, PET and wool, (2) removing PP mesh base from the sorted carpet, and (3) passing the carpet without the PP mesh base through an active feeding device to a grinding wheel to remove the backing adhesive.

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         11 . A device for removing backing adhesive from a carpet, comprising:
 (a) a grinder having a grinding wheel with a grinding surface,   (b) a feeding device, comprising an active roller and a passive roller having rotation axes parallel to each other, with the active roller in a fixed position and in contact with the grinding wheel of the grinder, and the passive roller being: movably coming in contact with the active roller and pressed against the active roller by a spring pressing mechanism; and   (c) a pressing wheel device on a frame, comprising a roller with a rotation axis parallel with the axis of the grinding wheel of the grinder, wherein the roller of the pressing wheel is for pressing against the grinding wheel a carpet running between the roller of the pressing device and the grinding wheel and the roller of the pressing device is slidably put in position at a prescribed distance relative to the grinding wheel and is acted on by a spring force urging towards the grinding wheel.   
     
     
         12 . The device according to  claim 11 , further comprising a feed guide plate provided behind the feeding device, a protective cover mounted over the grinding wheel, a dust outlet provided on the protective cover; a hopper provided under the grinding wheel, and a conveyor belt provided under the hopper. 
     
     
         13 . The device according to  claim 12 , further comprising a feed guide plate provided behind the feeding device, a protective cover mounted over the grinding wheel, a dust outlet provided on the protective cover; a hopper provided under the grinding wheel, and a conveyor belt provided under the hopper. 
     
     
         14 . The device according to  claim 13 , wherein the spring pressing mechanism comprising a slide bar, provided on a first T bearing of the passive roller of the feeding device, and a compression spring, mounted in the middle of the slide bar, with one end of the slide bar extending out of a guiding hole of a framework support base. 
     
     
         15 . The device according to  claim 14 , wherein the spring force is supplied by spring pressing position defining mechanism, which comprises a screw provided on a second bearing of the roller of the pressing wheel device, and a compression spring mounted in the middle of the screw, with one end of the screw extending out of the framework support base, on which a nut screwed. 
     
     
         16 . The device according to  claim 14 , wherein a driving force is transmitted from the active roller to the passive roller of the feeding device via a gear set.