Patent Application
20090049989
1. Field of the Invention
This invention relates to a welding smog disposing machine, particularly to one able to effectively dispose of smog and embers produced during carrying out electric welding work.
2. Description of the Prior Art
Generally, when a metal welding factory carries out argon welding, electric welding or heat treatment, a great quantity of welding smog containing volatile matter of heavy metal like lead, manganese and nickel will be produced. Therefore, when automatic worktables in such metal welding factories are operated, a great quantity of filthy air, impurities and embers will be produced to pollute the surroundings around and harm air quantity of the surroundings and, what's worse, many of such factories blocked by nearby buildings are badly ventilated. To solve the problem of environment pollution caused by electric welding, some metal welding factories are installed with industrial air filtration equipment for carrying out filtration of air. Such industrial air filtration equipment is generally provided with one or more filter nets for carrying out filtration. However, during the electric welding work, lots of oily dirty and impurities will be produced and therefore, the filter nets are likely to be clogged with such oily dirt and impurities and necessary to be frequently washed clean or replaced with new ones to avoid deteriorating the air around. In another case, if air filtration equipment is installed at a high location, it is necessary to take too much time and lab or in disassembling and washing the air filtration equipment.
The objective of this invention is to offer a welding smog disposing machine including a depositing frame and a machine box. The machine box is assembled on the depositing frame having one side combined with a contractible frame. The machine box has its interior partitioned into a filtration chamber and an exhaust chamber communicating with each other. The exhaust chamber has its bottom bored with an air intake for embers to pass therethrough, and the filtration chamber is disposed inside with a funnel shade having its upper and lower opening communicating with each other. The funnel shade has its outside provided with a movable filter cloth device, and the exhaust chamber is installed with a filter cylinder set and a blower in the interior. The filter cylinder set is composed of a plurality of cylinders arranged spaced apart equidistantly, and plural pressure air pipes and a water sprinkling pipe are assembled over the filter cylinder set. The blower is installed in a casing and positioned adjacent to the filter cylinder set, and the casing has one side assembled with an exhaust box communicating with the casing and having its topside provided thereon with an exhaust net.
The welding smog disposing machine in the present invention is provided with the contractible frame combined with one side of the depositing frame for receiving different-sized automatic worktables therein. Embers produced by the automatic worktable will be pumped to enter the exhaust chamber and the filtration chamber of the machine box through the air intake to have oily smog, filthy air and impurities filtrated by both the filter cylinder set and the movable filter cloth device. After being filtrated, unpolluted air will be pumped to the exhaust box by the blower and exhausted out through the exhaust net of the exhaust box. In addition, the exhaust chamber is provided inside with the pressure air pipes and the water sprinkling pipe for cleaning out embers produced in the machine box and preventing the filter cylinder set from being clogged by oily dirt and impurities, thus needless to wash or replace the filter cylinder set frequently and able to maintain good quality of air in a work environment.
This invention will be better understood by referring to the accompanying drawings, wherein:
A preferred embodiment of a welding smog disposing machine in the present invention, as shown in
The depositing frame 10 is a table formed with a support surface 11 and having four feet 12 of proper height secured with the underside of the support surface 11 for standing on the ground. The support surface 11 of the depositing frame 10 is to be fixed at a location away from a ceiling for a proper distance. The support surface 11 has its bottom bored with a through hole 111, as shown in
Referring to
The filtration chamber 30 is assembled with a foundation plate 31 at a location corresponding to the filter sheet set 24 below. The foundation plate 31 is fixed thereon with a funnel shade 311 gradually narrowed toward the foundation plate 31 and having its upper and lower opening communicating with each other. A movable filter cloth device 50 is installed at the outside of the funnel shade 311, composed of a first winding base 51, a second winding base 52, a rotary wheel set 53 and a filter cloth roll 54. The first winding base 51 and the second winding base 52 are respectively positioned at the front side and the rear side of the funnel shade 311, and the rotary wheel set 53 is assembled on the upper opening of the funnel shade 311, with the lower opening of the funnel shade 311 penetrating through the foundation plate 31 and facing the filter sheet set 24. The filter cloth roll 54 has one end wound on the first winding base 51 and another free end pulled upward to pass on the rotary wheel set 53 and cover on the upper opening of the funnel shade 311 and then moved downward to be wound on the second winding base 52. In addition, the machine box 10 has one side, corresponding to the second winding base 52, bored with an opening 32 having a door panel 321 pivotally assembled thereon, and another side corresponding to the first winding base 51 bored with another opening 33 having a door panel 331 pivotally assembled thereon. The machine box 10 further has a lateral side between the opening 32 and the opening 33 provided with two openings 34 respectively having a door panel 341 pivotally fixed thereon.
Referring to
When the automatic worktable is to carry out electric welding work, start the welding smog disposing machine on the depositing frame to let the blower 42 pump embers produced during electric welding into the exhaust chamber 40 through the air intake 221 to be filtrated by the filter cylinder set 41. Next, the pressure air pipes 43 will for a set time jet vacuum gas to the filter cylinder set 41 for timely washing away the embers adhered to the filter cylinder set 41 to let the embers drop down to the filter sheet set 24, and then timely open the water sprinkling pipe 44 to put out the embers and prevent them from entering the machine box 20 to cause a fire. At this time, parts of filthy air will be pumped to get on the filter cloth of the movable filter cloth device 50 to be filtrated and then moved by the movable filter cloth to drop down to the filter sheet set 24 through the openings of the funnel shade 31. Afterward, unpolluted air after filtrated will be pumped by the blower 42 to get into the exhaust box 46 that communicates with the casing 45 and exhausted out of the machine box 20 through the exhaust net 46. Thus, the air exhausted out is completely unpolluted and clean, able to effectively maintain good quality of air in the work environment.
After the filter cloth roll 54 of the movable filter cloth device 50 has been used for a period of time and the filtration surfaces of the whole filter cloth roll 54 have been used up, the filter cloth roll 54 has to be replaced with a new one. To replace the filter cloth roll 54, simply open the door panels 321 and 331, remove the used filter cloth roll 54 from the second winding base 52, and then a new filter cloth roll 54 is assembled on the first winding base 51, having its free end pulled upward to pass on the rotary wheel set 53 and then moved downward to be wound on the second winding base 52. In addition, the filter sheet set 24 positioned at the bottom of the machine box 20 can conveniently be drawn out to be washed clean or replaced with a new one.
As can be understood from the above description, this invention has the following advantages.
1. The depositing frame enables the machine box to be placed at a proper height for pumping and disposing of oily smog and embers produced by the automatic worktable positioned inside the depositing frame, and the contractible frame convenient to be collapsed or stretched for use is combined with one side of the depositing frame for receiving different-sized automatic worktable therein. In addition, both the depositing frame and the contractible frame have their peripheral provided with a transparent curtain hanging downward so as to prevent external dust from getting in the automatic worktable.
2. The machine box has its interior partitioned into the filtration chamber and the exhaust chamber. After embers are pumped to the interior of the machine box, oily smog, foul air and impurities can be first filtrated by the exhaust chamber and then filtrated for a second time by the filtration chamber; therefore, air exhausted out is completely unpolluted, effectively cleaning away and filtrating the embers produced by the automatic worktable, and maintaining good quality of air in a work environment.
3. The pressure air pipes installed inside the exhaust chamber can function to remove away the dust and embers adhered to the filter cylinder set, able to prolong service life and elevate filtration quality of the filter cylinder set, and the water sprinkling pipe provided in the exhaust chamber is used for extinguishing the embers to prevent them from entering the machine box and causing a fire, enabling the machine box to carry out filtration conveniently and safety.
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.
