Patent Grant
7165288
1. Field of the Invention
The present invention is related to a twin-loop dust collector, and especially to a dust collecting structure able to form an upper loop and a lower loop for exhausting air; it has the effects of scraps discharging, smoke exhausting and fast heat sinking, and is suitable for a laser carving machine or the like to cut or carve cloths, leathers, papers.
2. Description of the Prior Art
Since high-quality laser carving machines were widely used, various laser carving machines specific for leather and cloths have been developed being due to that such machines are easy and fast for cutting. While it is important to remove heat, waste smoke and scraps generated in laser processing especially from those materials with low ignition points and of easiness of burning such as leather, cloths, papers etc. that are more subjected to burning by having waste scraps or by heat to make damage of the processed work pieces, or even to have the danger of inducing fire alarm. Thereby, it is always the subject highly thought of by the manufacturers and users to discharge heat and suck scraps.
Referring to
Following elevating of modern techniques of production, laser processing has been not limited to the application of cutting metals, it is very widely applied on acrylic and wooden carving, and even on cutting of leather, cloths and papers. In the designing of a conventional dust collector, air suction is done only at the area beneath the working platform 1 and can only generate sufficient negative pressure to suck the leather, cloth or paper thereabove. This is still insufficient in discharging scraps; because leathers, cloths or papers are combustible materials, and the processed work pieces made of them are dealt with in a state of lying flat, the vent holes of the working plane of an article are blocked, air exhausting can only be done by adding a peripheral vent hole. However, sometimes the area of an article is larger, during processing, the waste scraps scattered onto the article are unable to be removed in time, so that when in cutting, sparks created at high temperatures tend to cause burning of the waste scraps. This may affect the quality of processing, and even may induce a serious conflagration.
And more, such air suction mode with a single opening is very hard to remove the smoke and scraps emitted in processing, hence dust content in the air gets higher, the environment of working become worse relatively; this will affect the accuracy of laser processing.
In view of the above conventional defects to be solved, the present invention is provided.
The primary object of the present invention is to provide a twin-loop dust collector able to form an upper loop and a lower loop for exhausting air; it has the effects of scrap discharging, smoke exhausting and fast heat sinking.
To get the above stated object, the twin-loop dust collector of the present invention comprises: a case with an opening on the upper side thereof, the case is provided on a lateral side thereof with a vent hole; a net plate is provided to cover the opening, one side of the net plate is pivotally connected with the case to allow lifting of the net plate. The net plate is transversely mounted to divide the vent hole into two areas; thereby when in air suction, two loops for exhausting air are formed above and below the net plate respectively.
The present invention will be apparent after reading the detailed description of the preferred embodiment thereof in reference to the accompanying drawings.
Referring firstly to
Wherein the case 41 has an opening 411 on the upper side thereof, and two connecting holes 412 are provided respectively on the two lateral sides of the case 41, the rear side of the case 41 has a vent hole 413 for connecting an external air suction tube 3 (as shown in
The net plate 42 is transversely mounted on the opening 411, and comprises an external frame 421 and a metallic honeycomb plate 422, the external frame 421 has two holes 426 provided respectively on the two lateral sides thereof for extending therein axle bolts 424 to pivotally connect the external frame 421 with the two connecting holes 412 provided respectively on the two lateral sides of the case 41. The net plate 42 can be lifted from the case 41. The net plate 42 and the case 41 are also provided each with two locking holes 425, 414 respectively at the front corners of them; thereby screws 5 can be used to lock the net plate 42 onto the case 41. When in assembling, the vent hole 413 is divided into two areas by the net plate 42. Thus, when the net plate 42 is transversely placed in front of the vent hole 413; such that when suction, is drawn two loops for exhausting air are formed above and below the net plate 42 respectively.
When in practicing, as shown in
In cleaning the accumulated dusts, by virtue that the net plate 42 is pivotally connected on the rear end thereof with the case 41, when the two lateral screws 5 are removed after processing, the net plate 42 can be lifted for collecting and cleaning up dusts conveniently.
Accordingly, the present invention has the following advantages:
In conclusion, according to the above disclosed, the present invention surely can get its expected object to provide a twin-loop dust collector able to form an upper loop and a lower loop for exhausting air, it has the effects of scrap discharging, smoke exhausting and fast heat sinking.
| Number | Name | Date | Kind |
|---|---|---|---|
| 5906760 | Robb et al. | May 1999 | A |
| 6388228 | Lai | May 2002 | B1 |
| 6881924 | Lai | Apr 2005 | B1 |
| Number | Date | Country | |
|---|---|---|---|
| 20040221414 A1 | Nov 2004 | US |
