Grinding disc structure
An improved grinding disc structure includes a support disc having first through holes and second through holes; a main disc body, with a distal surface connected onto the support disc, and having dust exhaust holes, a longitudinal guiding portion at the center, and a longitudinal guiding portion with outwardly extended transverse guiding portions and each dust exhaust hole corresponding to each first through hole, and each transverse guiding portion corresponding to each second through hole, and each transverse guiding portion being not interconnected with each dust exhaust hole; a grinding layer, disposed on another distal surface of the main disc body, and having through holes corresponding to each dust exhaust hole and the longitudinal guiding portion, such that each dust exhaust hole and the longitudinal guiding portion achieve the dust collection effect for the external portion and center of the grinding disc.
1. Field of the Invention
The present invention relates to a grinding machine, and more particularly to an improved grinding disc structure.
2. Description of the Related Art
When a grinding machine is used for grinding objects, debrises are usually produced after the objects are ground, and the debrises not only affects the health of workers, but also makes the working environment dirty and untidy. Therefore, it is an important subject for grinding machine manufacturers to find a way of collecting the debrises while grinding objects. In
In
Referring to
Therefore, it is a primary objective of the present invention to provide an improved grinding disc structure for achieving the dust collection effect for both the external portion and the center of the grinding disc.
To achieve the foregoing objective, the present invention provides an improved grinding disc structure, comprising: a support disc, coupled with a grinding machine having a vacuum hood, and the support disc having a plurality of first through holes and a plurality of second through holes thereon; a main disc body, with a distal surface coupled onto the support disc, and the distal surface of the main disc body having a plurality of dust exhaust holes, and each dust exhaust hole being interconnected with each corresponding first through hole on the support disc, and the center position of the main disc body having a longitudinal guiding portion, and the longitudinal guiding portion having a plurality of transverse guiding portions extended towards an external rim of the main disc body, and each transverse guiding portion being interconnected with each corresponding second through hole on the support disc, and a blocking portion being disposed between each transverse guiding portion and each dust exhaust hole, such that each transverse guiding portion is not interconnected with each dust exhaust hole; and a grinding layer, coupled to another distal surface of the main disc body, and having a plurality of through holes disposed on the grinding layer and interconnected with each dust exhaust hole corresponding to the longitudinal guiding portion.
Therefore, each dust exhaust hole and the longitudinal guiding portion can achieve the dust collection effect for the interior and the center of the grinding disc respectively.
The objective, technical measures and performance of the present invention will become apparent in the detailed description of the preferred embodiments with reference to the accompanying drawings as follows:
Referring to
The support disc 21 is coupled with a grinding machine 51 having a vacuum hood 52, and includes a connecting element 22 protruded from the center of the support disc 21 and connected to a main shaft 54 of the grinding machine 51 through the connecting element 22, and six first through holes 24 disposed around the top of the support disc 21, and the support disc 21 includes three second through holes 26 around the center of the support disc 21.
The top of the main disc body 31 is coupled to a distal surface of the support disc 21, and the distal surface of the main disc body 31 includes six penetrating dust exhaust holes 32, each interconnected with each first through hole 24 on the support disc 21, and each dust exhaust hole 32 includes a passage 34 interconnected externally with the periphery of the main disc body 31, and the center of the main disc body 31 has a longitudinal guiding portion 36 penetrating through the bottom of the main disc body 31, and the longitudinal guiding portion 36 includes three transverse guiding portions 38 extended towards the each disc body 31, and the external edge of the transverse guiding portion 38 is interconnected with each second through hole 26 on the support disc 21, and a blocking portion 39 is disposed between each transverse guiding portion 38 and each dust exhaust hole 32, such that each transverse guiding portion 38 is not interconnected with each dust exhaust hole 32.
The grinding layer 41 is formed by connecting an adhesive plate 42 and a grinding sand paper 44, and the grinding layer 41 is disposed at the bottom of the main disc body 31, and the grinding layer 41 includes seven through holes 46 corresponding to each dust exhaust hole 32 and the longitudinal guiding portion 36.
When the invention is in use as shown in
The present invention uses the blocking portion 39 to isolate each dust exhaust hole 32 from each transverse guiding portion 38, so that they are not interconnected, and each dust exhaust hole 32 and each transverse guiding portion 38 do not interfere with each other during the dust collection process. Therefore, each dust exhaust hole 32 and its corresponding passage 34 achieve the effect of collecting debrises at the external portion of the grinding disc 12, and the longitudinal guiding portion 36 and each transverse guiding portion 38 achieve the effect of collecting debrises at the center of the grinding disc 12. Since each transverse guiding portion 38 is very close to the center of the grinding disc 12, therefore the debrises at the center of the grinding disc 12 can be sucked successfully into the vacuum hood 52 to overcome the drawback of having debrises remained at the center of the grinding disc 12 due to an insufficient sucking force. Further, the transverse guiding portions 38 come with a sufficient space for containing the debrises, and thus there will be no clogging problem caused by the debrises.
Claims
1. An improved grinding disc structure, comprising:
- a support disc, coupled with a grinding machine having a vacuum hood, and said support disc having a plurality of first through holes and a plurality of second through holes thereon;
- a main disc body, with a distal surface coupled onto said support disc, and said distal surface of said main disc body having a plurality of dust exhaust holes, and said each dust exhaust hole being interconnected with said each corresponding first through hole on the support disc, and the center position of said main disc body having a longitudinal guiding portion, and said longitudinal guiding portion having a plurality of transverse guiding portions extended towards an external rim of said main disc body, and said each transverse guiding portion being interconnected with said each corresponding second through hole on said support disc, and a blocking portion being disposed between said each transverse guiding portion and said each dust exhaust hole, such that said each transverse guiding portion is not interconnected with said each dust exhaust hole; and
- a grinding layer, coupled to another distal surface of said main disc body, and having a plurality of through holes disposed on said grinding layer and interconnected with said each dust exhaust hole corresponding to said longitudinal guiding portion.
2. The improved grinding disc structure of claim 1, wherein said support disc includes a connecting element protruded from the center of said support disc, and said support disc is coupled to said grinding machine by said connecting element.
3. The improved grinding disc structure of claim 1, wherein said each dust exhaust hole includes a passage externally interconnected with the periphery of said main disc body.
4. The improved grinding disc structure of claim 1, wherein said each transverse guiding portion is interconnected with said each corresponding second through hole on said support disc by an external distal end of said transverse guiding portion.
5. The improved grinding disc structure of claim 1, wherein said grinding layer is comprised of an adhesive plate and a grinding sand paper.
6. An improved grinding disc structure, comprising:
- a support disc, coupled with a grinding machine having a vacuum hood, and said support disc having a plurality of through holes thereon;
- a main disc body, with a distal surface coupled onto said support disc, and the center position of said main disc body having a longitudinal guiding portion, and said longitudinal guiding portion having a plurality of transverse guiding portions extended in a direction towards an external rim of said main disc body, and said each transverse guiding portion being interconnected with said each corresponding second through hole on said support disc; and
- a grinding layer, coupled to another distal surface of said main disc body, and having a through hole disposed on said grinding layer and interconnected with said the longitudinal guiding portion.
7. The improved grinding disc structure of claim 6, wherein said support disc includes a connecting element protruded from the center of said support disc, and said support disc is coupled to said grinding machine by said connecting element.
8. The improved grinding disc structure of claim 6, wherein said main disc body further comprises a plurality of dust exhaust holes disposed on a distal surface of said main disc body, and said support disc further comprises a through hole interconnected with said each corresponding dust exhaust hole.
9. The improved grinding disc structure of claim 8, wherein said each dust exhaust hole includes a passage externally interconnected with the periphery of said main disc body.
10. The improved grinding disc structure of claim 8, further comprising a blocking portion disposed between said each dust exhaust hole and said each transverse guiding portion, such that said each transverse guiding portion is not interconnected with said each dust exhaust hole.
11. The improved grinding disc structure of claim 6, wherein said each transverse guiding portion is interconnected with said each corresponding through hole on said support disc by an external distal end of said transverse guiding portion.
Type: Application
Filed: Feb 12, 2008
Publication Date: Dec 23, 2010
Inventors: Yung-yung Sun (Dali City), Chuan-ching Cheng (Taichung City)
Application Number: 12/068,855
International Classification: B24B 41/00 (20060101);