Patent Publication Number: US-2007102550-A1

Title: Plastic grain cutting and transporting mechanism

Description:
FIELD OF THE INVENTION  
      The present invention relates to a plastic grain cutting and transporting mechanism.  
     BACKGROUND OF THE INVENTION  
      The prior plastic grain cutting and transporting mechanism, as  FIGS. 1 and 2  shown, employs a plastic grain-collector  1 , which is a circular-tank-shaped container, and a rotary cutter-holding base  9 , which is located at the bottom of the collector  1  and is driven by motor  8 . Three cutters  2  are installed on the rotary cutter holding base  9 . With the help from the anti-gliding cutters  13  that are installed on the inner wall of the plastic grain-collector, the performance of pulverization is greatly improved. The force induced by rotation of the rotary cutter holding base  9  smoothly pushes plastic grains into the inlet  4 . A pivot support  10  is installed at the left end of the inlet support  10  and is fastened onto the mounting base  11  of plastic grain-collector  1 . A pivot hole, which is installed on the pivot support, acts as a supporting point for the left axle of screw conveyor  5 , and makes the screw conveyor  5  stable during operation. A heating conduit  6 , which is installed at the right side of the inlet support  3 , heats up plastic grains. Meanwhile, the screw conveyor  5  that is connected to the outlet transports plastic grains.  
      But due to the defection of the prior mechanism design, the defects are described as the following:  
      First, the plastic grains in the main plastic grain-collector  14  need to be washed, therefore, most of the plastic grains contain moisture. As a result, the plastic grains can&#39;t be pulverized thoroughly only by the three cutters  2  and the anti-gliding cutters  3  and the moisture can&#39;t evaporate completely.  
      Second, since the moisture can&#39;t evaporate completely, the plastic grains heated to be sticky in the heating conduit still have moisture. As a result, the end products contain bubbles and miscellaneous quality. This will decrease the quality of the end quality.  
      Third, since the moisture can&#39;t evaporate completely, the heating conduit has to be prolonged to heat the plastic grains longer so that the moisture can evaporate completely. The whole process takes time, occupies space, and the high cost will be the result. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       FIG. 1  shows an elevation cross-sectional view of the prior art,  
       FIG. 2  shows a front cross-sectional view of the prior art,  
       FIG. 3  shows an elevation cross-sectional view of the present invention, and  
       FIG. 4  shows a front cross-sectional view of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION  
      One inlet support  17  is installed on the front side of the plastic grain-collector  14 . The inlet  18  is an opening located at the intersection between the inlet support  17  and the plastic grain-collector  14 . The plastic grain-collector  14  is a circular-tank-shape container that has one rotary cutter-holding base  23 , which is driven by one connected motor  22 , installed at the bottom of the plastic grain-collector. Three cutters  16  for pulverization are installed on the top of the rotary cutter-holding base  23 . With help from the anti-gliding cutters  21  that is installed on the inner wall of the plastic grain-collector  14 , the performance of pulverization is greatly improved. The force induced by rotation of the rotary cutter-holding base  23  smoothly pushes plastic grains into the inlet  18 . A pivot support  24  is installed at the left end of the inlet support  17  and is fastened onto the mounting base  11  of the plastic grain collector  14 . A pivot hole, which is located on the pivot support, acts as a supporting point for the left axle end of screw conveyor  19 , and makes the screw conveyor  19  stable during operation. A heating conduit  20 , which is installed at the right side of the inlet support  12 , heats up plastic grains. At the same time, the screw conveyor  19  that is connected to the outlet  25  transports plastic grains. The main feather is to install a tube on the right side of the main plastic grain-collector  14  connecting the second plastic grain-collector  15 ; the second plastic grain-collector  15  is also a circular-tank-shaped container that has one rotary cutter-holding base  28  driven by one connected motor  27 . Three cutters  29  for pulverization installed on the top of the cutter-holding base pulverize the plastic grains for the first time, the plastic grains are pulverized for the second time in the main plastic grain-collector  14 . The more the plastic grain-collector is, the better the cutting performance is, thus, the plastic grains are pulverized thoroughly and certainly, the quality of the end product is improved. The merit of this invention is described as the following:  
      First, the more the plastic grain-collector is, the better the cutting performance is. As a result, the thorough pulverization can be achieved and the moisture can be evaporated more completely. Certainly, the quality of the end product is improved  
      Second, since the moisture evaporates completely, the plastic grains are heated up in the heating conduit with less moisture. Moreover, the end product doesn&#39;t have any bubbles or miscellaneous quality, and certainly, the quality of the end product is improved.  
      Third, since the cutting performance is improved; the raw materials have less moisture. Thus, the heating conduit can be shortened half a length than the prior one. The moisture can be evaporated in the shorter heating conduit; therefore, the whole process is timesaving, economical and occupies less space.