Patent Publication Number: US-2012024225-A1

Title: Glue coating device

Description:
BACKGROUND 
     1. Technical Field 
     This disclosure relates to glue coating devices, particularly to glue coating devices used for coating fasteners with glue. 
     2. Description of Related Art 
     Sometimes, to prevent fasteners such as bolts or fasteners, such as screws, from backing out of holes, glue is applied on the threaded portions of the fastener. One way to apply glue onto fasteners is by dipping the fasteners into a container of glue. However, each time a fastener is coated the level of the glue will be reduced and need to be manually topped up to ensure proper depth for a complete coating of the next fastener. 
     Therefore, there is a room for improved in the art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of the embodiments can 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 exemplary glue coating device. Moreover, in the drawings like reference numerals designate corresponding parts throughout the several views. Wherever possible, the same reference numbers are used throughout the drawings to refer to the same or like elements of an embodiment. 
         FIG. 1  is an exploded view of an exemplary embodiment of a glue coating device. 
         FIG. 2  is another exploded view of the glue coating device shown in  FIG. 1 . 
         FIG. 3  is an assembled view of a glue coating device. 
         FIG. 4  is a cross-sectional view of the glue coating device taken along the line IV-IV of  FIG. 3 . 
         FIG. 5  is a schematic view of the glue coating device shown in  FIG. 4  in a working state. 
     
    
    
     DETAILED DESCRIPTION 
     Referring to  FIGS. 1-3 , an exemplary embodiment of a glue coating device  100  for coating a work piece, such as a fastener (not shown), with glue is shown. The glue coating device  100  includes a base  10 , a main body  20  mounted on the base  10 , a dipping board  30 , a container  40 , a cover  50 , and a buffer  60 . The main body  20  is mounted on the base  10 . The main body  20  further defines a first hole  22 , a second hole  24 , and a slot  26  between the first hole  22  and the second hole  24 . The slot  26  is for communicating the first hole  22  with the second hole  24 . Referring to  FIG. 4 , when the base  10  is mounted on the main body  20 , a mounting space  62  is formed between the first hole  22  and the base  10 , a dipping space  64  is formed between the second hole  24  and the base  10 , and a channel  66  is formed between the mounting space  62  and the dipping space  64 . The channel  66  is for communicating the mounting space  62  with the dipping space  66 . The dipping board  30  covers the main body  20  to shield the dipping space  64 . The dipping board  30  defines a plurality of dipping holes  32 . The container  40  defines a receptacle  42  in a first end  41  thereof for accommodating glue and a glue injecting hole  44  in a second end  43  thereof for injecting glue into the receptacle  42 . The first end  41  of the container  40  is located in the mounting space  62 . The cover  50  is for hermetically covering the glue injecting hole  44 . Referring to  FIG. 4 , the buffer  60  is mounted on the base  10  and accommodated in the mounting space  62 , and the buffer  60  is accommodated in the receptacle  42  when the container  40  is located in the mounting space  62 . The buffer  60  is for reducing the speed of the glue flowing out of the receptacle  42 . 
     The main body  20  further defines a plurality of vents  28  respectively communicating with the mounting space  62 . The container  40  is disposed such that when the container  40  is mounted on the main body  20 , there is a clearance/space formed between the container  40  and the mounting space  62 . The vents  28  allow air to circulate between the mounting space  62  and the atmosphere. The main body  20  further defines a threaded hole  29  communicating with the mounting space  62 . The hole  29  is for engaging with a fastener  70 . 
     Referring to  FIGS. 3 and 4 , in assembly, the buffer  60  is mounted on the base  10 . The main body  20  is hermetically mounted on the base  10  with the buffer  60  located in the mounting space  62 . The dipping board  30  is mounted to the main body  20  to cover the dipping space  64 . The first end  41  of the container  40  is inserted in the mounting space  62  until the buffer  60  is accommodated in the receptacle  42 . The fastener  70  is fastener in the fastener hole  29  until the fastener  70  resists the container  40  to hold the container  40  in the main body  20 . 
     Referring to  FIGS. 4 and 5 , in use, the cover  50  is removed from the container  40 . Glue is then injected into the receptacle  42  from the glue injecting hole  44 . The cover  50  covers on the container  40  again. The fastener  70  is adjusted to release the container  40  from the main body  20 . The container  40  is then lifted to separate from the base  10 , so that the glue in the receptacle  42  will flow into the mounting space  62 , the channel  66 , and the dipping space  64  under the force of gravity until the glue level in the mounting space  62  is level with the first end  41  of the container  40 . The glue will stop flowing out of the receptacle  42  when the glue level in the mounting space  62  is level with the first end  41  because once the glue level in the mounting space  62  is level with the first end  41 , the glue in the receptacle  42  is separated from the atmosphere by the glue in the mounting space  62 ; and the mounting space  62  communicates with the atmosphere by the vents  28 , so the glue in the receptacle  42  will stop flowing into the mounting space  62  because of the outside or atmospheric pressure. Additionally, the dipping space  64  is communicated with the mounting space  62  by the channel  66 , so the glue level B ( FIG. 5 ) in the dipping space  64  can be level with the glue level A ( FIG. 5 ) in the mounting space  62 . To coat fasteners with glue, the fastener is dipped into the glue in the dipping space  64  through one of the dipping holes  32 . The glue level B in the dipping space  64  will be reduced after coating the fastener, so the glue in the mounting space  62  will flow in the channel  66  into the dipping space  64 . As a result the glue level A in the mounting space  62  will separate from the first end  41  again, so the glue in the receptacle  42  will continue flowing into the mounting space  62 , the channel  66 , and the dipping space  64  under force of gravity until the glue level A in the mounting space  62  is level with the first end  41 . Thus, the glue level B in the dipping space  64  is level with the glue level A in the mounting space  62  again, and all is ready to coat the next fastener. 
     It is understood that the base  10  and the main body  20  can be integrated into one integrated element in which the mounting space  62 , the dipping space  64 , and the channel  66  are directly defined in the main body  20 . 
     It is to be further understood that even though numerous characteristics and advantages of the exemplary embodiments have been set forth in the foregoing description, together with details of structures and functions of various embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the exemplary invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.