Patent Document

BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The present disclosure relates to cleaning devices and, particularly, to a device for cleaning scrap blocking spiral slots of a grinding plate. 
         [0003]    2. Description of Related Art 
         [0004]    A grinding plate is disc-shaped, and includes a grinding surface for grinding workpieces. The grinding surface defines a spiral slot. Users clear scrap from the spiral slot using tweezers, which is time consuming. 
         [0005]    Therefore, it is desirable to provide a cleaning device that can overcome the above-mentioned limitations. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0006]    Many aspects of the embodiments should be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. 
           [0007]      FIG. 1  is a schematic view of a cleaning device, according to an exemplary embodiment. 
           [0008]      FIG. 2  is an exploded view of the cleaning device of  FIG. 1 . 
           [0009]      FIG. 3  is a schematic view of the cleaning device of  FIG. 1 , showing the cleaning device in a working state. 
       
    
    
     DETAILED DESCRIPTION 
       [0010]    Referring to  FIG. 1  and  FIG. 3 , a cleaning device  100  is used for clearing scrap from a spiral slot  211  in a grinding surface  210  of a grinding plate  200 . The device  100  includes a base  10 , a sliding device  30 , three knives  50 , and a dust collector  60 . 
         [0011]    Referring to  FIG. 2 , the base  10  includes two spaced and parallel supporting feet  11  and two parallel sliding poles  13 . Each sliding pole  13  includes two opposite ends respectively connected to the two feet  11 . 
         [0012]    The sliding device  30  includes a sliding plate  31 , three fixing plates  33 , and six screws  35 . The sliding plate  31  slidably sleeves on the two sliding poles  13 , and includes a cuboid first fixing portion  311 , an arc-shaped second fixing portion  312  opposite to the first fixing portion  311 , and a connecting portion  313  configured for connecting the first fixing portion  311  to the second fixing portion  312 . The first fixing portion  311  includes a first surface  315  and a second surface  316 . The first surface  315  is away from the second fixing portion  312 , and defines a receiving groove  315   a . The second surface  316  is substantially perpendicular to the first surface  315 , and parallel to the extending direction of the sliding pole  13 . The second fixing surface  316  defines a first through slot  316   a  communicated with the receiving groove  315   a . The connecting portion  313  defines two first through holes  313   a  for extension of corresponding sliding pole  13  therethrough. The second portion  312  defines a second through slot  312   a  along the direction substantially perpendicular to the grinding surface  210 . 
         [0013]    Each fixing plate  33  is cuboid, and includes a first end  331 , a second end  332  opposite to the first end  331 , and an end surface  333  away from the first end  331 . The first end  331  is received in the receiving groove  315   a . The second end  332  extends out from the receiving groove  315   a . The first end  331  defines a first screw hole  334  corresponding to the first through slot  316   a . The second end  332  defines a second through hole  335  along the direction substantially perpendicular to the extending direction of the sliding poles  13  and parallel to the end surface  333 . The end surface  333  defines a second screw hole  336  communicating with the second through hole  335 . 
         [0014]    Each blade  50  includes a main body  51  and a connecting arm  53  slantingly extending out from an end of the main body  51 . The main body  51  and the connecting arm  53  are each straight line shaped and cooperatively form an obtuse angle therebetween. 
         [0015]    The dust collector  60  is used for collecting any scrap in the grinding plate  200 , and includes a nozzle  61  formed opposite to the grinding plate  200 . The nozzle  61  extends through and interferingly fits with the second through slot  312   a.    
         [0016]    In assembly, each sliding pole  13  extends through a corresponding first through hole  313   a , the two opposite ends of each sliding pole  13  are fixed on the corresponding supporting foot  11 . The first end  331  of the fixing plate  33  is received in the receiving groove  315   a , and the first screw hole  334  is aligned with the through slot  316   a . Three of the six screws  35  pass through the through slot  316   a  and are respectively received in the three first screw holes  334 , thus the three fixing plates  33  are fixed on the sliding plate  31 . The connecting arms  53  of the three knives  50  extend through the corresponding second through holes  335 , until the main bodies  51  of the three knives  50  resist on the bottom of the spiral slot  211 . The other three screws  35  are received in the three second screw holes  336 , and screwed in until resisting on the corresponding connecting arms  53 , therefore, the three knives  50  are fixed on the fixing plates  33 . The nozzle  61  is fixed on the second through slot  312   a  and faces the grinding surface  210 . 
         [0017]    Referring to  FIG. 2  and  FIG. 3 , in use, the two supporting feet  11  are fixed on a lathe (not shown) to position the sliding poles  13  across the grinding plate  200 , the main bodies  51  of the three knives  50  are inserted into the spiral slot  211 , and resist on the bottom surface of the spiral slot  211 . The dust collector  60  is powered on, the grinding plate  200  is rotated to drive the main body  51  of the three knives  50  to slide in the spiral slot  211 , to shovel the scrap. A portion of the scrap is collected by the dust collector  60 . The main bodies  51  of the three knives  50  move travel out from the center of the grinding plate  200  in the spiral slot  211 , and drive the sliding plate  31  to slide along the extending direction of the sliding pole  13 , until the main bodies  51  of the three knives  50  slide away from the spiral slot  211 , and at this time, the scrap is shoveled out from the spiral slot  211 . 
         [0018]    In other embodiment, the knives  50  can be fixed on the sliding device  30  using some other suitable means. The fixing plate  33  can be integrated with the sliding plate  31 . The dust collector  60  can be omitted depending on application. 
         [0019]    In this embodiment, the number of the fixing plates  33  is equal to that of the knives  50 . In other embodiments, the number of the fixing plates  33  and the knives  50  also can be other than four according to practical need. 
         [0020]    It will be understood that the above particular embodiments are shown and described by way of illustration only. The principles and the features of the present disclosure may be employed in various and numerous embodiments thereof without departing from the scope of the disclosure as claimed. The above-described embodiments illustrate the scope of the disclosure but do not restrict the scope of the disclosure.

Technology Category: 7