High-efficiency dust collecting device with two gateways
A high-efficiency dust collecting device with two gateways is connected with exits of a cover of a sand grinder and above two sanding belt rollers., composed of a first gateway set and a second gateway set, which are both formed integrally with a metallic panel and provided respectively with a first and a second arc-like panel, a first and a second blocking plate, and two first and two second dust-guiding plates. A first and a second gateway are respectively formed between the arc-like panel and the blocking plate so as to suck in the dust or the wood flour generated while grinding a workpiece. The dust or the wood flour is then sucked further to pass through the exits to the collecting device, favored by the dust-guiding plates.
1. Field of the invention
This invention relates to a sand grinder, particularly to one installed with a high-efficiency dust-collecting device with two gateways, able to effectively collect dust or wood flour generated while grinding a wood workpiece.
2. Description of the Prior Art
Commonly, as shown in
The objective of this invention is to offer a high-efficiency dust-collecting device with two gateways for a sand grinder.
The main characteristics of the invention are a first gateway set and a second gateway set, which are both formed integrally with a metallic panel. The dust-collecting device is connected with exits of a cover of the sand grinder and above two sanding belt rollers. Each of the gateway sets is provided with an arc-like panel, a blocking plate, and two dust-guiding plates. A gateway is formed between the arc-like panel and the blocking plate so as to suck in the dust or the wood flour generated while grinding a workpiece. The dust or the wood flour is then sucked further to pass through the exits to the collecting device, favored by the dust-guiding plates. The collecting position of the dust collecting device is raised high enough so that the device can effectively collect the dust via help of the dust-guiding plates shaped oblique, keeping the sanding belt rollers free from dust, advancing the processed precision of the workpiece, prolonging the service life of the sanding belt rollers and needing only a relatively small power motor for a reduction of cost. Moreover, the dust-collecting device is formed integrally by a metallic panel, it is easy to be installed under the cover, providing a simple assembly and a low cost.
This invention is better understood by referring to the accompanying drawings, wherein:
The first gateway set 81 is formed integrally with a metallic panel and installed at one side of the front sanding belt roller 40 corresponding to the grinding direction of the conveying table 60. The first gateway set 81 is composed of a first arc-like blocking panel 811, a first blocking plate 812 and two first dust-guiding plates 813. The first arc-like blocking panel 811 formed with a certain curvature is fixed at a certain location around the circumference of the front sanding belt roller 40, having its bottom edge located near the grinding point of the front sanding belt roller 40. The first blocking plate 812 is obliquely fixed to correspondingly face to the first arc-like blocking panel 811, spaced apart in a certain distance. And, the first dust-guiding plates 813 are obliquely fixed at two sides of the first arc-like blocking panel 811 and the first blocking plate 812, so that the space between the first arc-like blocking panel 811 and the first blocking plate 812 makes up a first gateway 814.
The second gateway set 82 is also formed integrally with a metallic panel and installed at one side of the second sanding belt roller 50 corresponding to the grinding direction of the conveying table 60. The second gateway set 82 is composed of a second arc-like blocking panel 821, a second blocking plate 822 and two second dust-guiding plates 823. The second arc-like blocking panel 821 formed in a certain curvature is fixed at a certain location around the circumference of the second sanding belt roller 50, having its bottom edge located near the grinding point of the second sanding belt roller 50. The second blocking plate 822 is obliquely fixed to correspondingly face to the second arc-like blocking panel 821, spaced apart in a certain distance. And, the second dust-guiding plates 823 are fixed at two sides of the second arc-like blocking panel 821 and the second blocking plate 822, so that the space between the second arc-like blocking panel 821 and the second blocking plate 822 makes up a second gateway 824.
In addition, there is a connecting member 83 formed in the top of the first gateway set 81 and the second gateway set 82. Two sides of the connecting member 83 are respectively cut with an opening 84 corresponding respectively to the exits 71 and 72. The connecting member 83 is provided with plural screw holes 831 for fixing with the bottom of the cover 70. Further, a positioning member 85 is set at two sides of the first gateway member 81 and the second gateway member 82 respectively, provided with a L-reversed wing 851 extended upward to the bottom of the cover 70. The wing 851 is provided with two screw holes 852 for two screws 853 to screw with, in order to keep the dust-collecting device 80 positioned fixedly under the bottom of the cover 70.
As shown in
The advantages of the invention are described below as can be seen from the foresaid description. First, a rather high level of the collecting device can effectively collect the dust via the help of the first dust-guiding plate 813 and the second dust-guiding plate 823, keeping the front sanding belt roller 40 and the second sanding belt roller 50 free from dust, advancing the processed precision of a workpiece, prolonging the service life of the rollers and needing only a small power motor for a reduction of cost. Second, the dust-collecting device 80 is formed integrally with a metallic panel, so it is easy to be installed under the cover 70, providing a simple assembly and a low cost, too.
While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.
Claims
1. A high-efficiency dust collecting device with two gateways for a sand grinder, said sand grinder composed of a main body, two sanding belt rollers located transversely across it, a conveying table installed under said sanding belt rollers and a cover that is provided with two exits cut transversely at its two sides, said dust collecting device installed under a bottom of said cover and above said sanding belt rollers, said dust collecting device connected with said exits and comprising:
- a first gateway set formed integrally with a metallic panel and installed at one side of one of said sanding belt rollers corresponding to a grinding direction of said conveying table, said first gateway set composed of a first arc-like blocking panel, a first blocking plate and two first dust-guiding plates, said first arc-like blocking panel fixed corresponding to said first blocking plate, said first dust-guiding plates fixed obliquely at two sides of said first arc-like blocking panel and said first blocking plate to keep a space formed between said first arc-like blocking panel and said first blocking plate to function as a first gateway;
- a second gateway set formed integrally with a metallic panel and installed at one side of the other of said sanding belt rollers corresponding to a grinding direction of said conveying table, said second gateway set composed of a second arc-like blocking panel, a second blocking plate and two second dust-guiding plates, said second arc-like blocking panel fitted corresponding to said second blocking plate, said second dust-guiding plates fitted obliquely at two sides of said second arc-like blocking panel and said second blocking plate to keep a space formed between said second arc-like blocking panel and said second blocking plate to function as a second gateway; and
- said first gateway and said second gateway able to suck in dust or wood flour generated when said sanding belt rollers are grinding a workpiece, said dust or said wood flour then running along said first dust-guiding plate and said second dust-guiding plate through said exits to said collecting device.
2. A high-efficiency dust collecting device with two gateways for a sand grinder as claimed in claim 1, wherein a positioning member is formed longitudinally across two sides of said first gateway set and said second gateway set respectively, provided with two screw holes for fixing with a side bottom of said cover.
3. A high-efficiency dust collecting device with two gateways for a sand grinder as claimed in claim 1, wherein a connecting member is formed longitudinally on top of said first gateway set and said second gateway set, provided with a preset number of screw holes for fixing with a bottom of said cover.
4. A high-efficiency dust collecting device with two gateways for a sand grinder as claimed in claim 1, wherein two sides of said connecting member are cut respectively with an opening positioned to correspondingly face a lower portion of said exit.
Type: Application
Filed: Feb 21, 2007
Publication Date: Aug 21, 2008
Inventor: Po Chang Chuang (Taiping City)
Application Number: 11/708,709