JP2887455B2 - Air purification device for dust generating cutting machine / polishing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purification device for a dust-generating cutting machine / polishing machine which is provided with a partition wall surrounding a dust-generating processing device such as a cutting machine / polishing, and which purifies air flowing in front of an operator. Things.

[0002]

2. Description of the Related Art Conventionally, dust from a cutting machine or polishing has been collected by a negative pressure suction type dust collector provided near a source, but it cannot be sufficiently suctioned and collected. There is a problem that it is contaminated by dust.

[0003]

A problem to be solved is that a sufficient dust collection has not been performed conventionally.

[0004]

Means for Solving the Problems A partition wall 2a surrounding the dust generating and processing apparatus is provided, and an intake chamber 3 having an air intake port 3a opened in the lower front of the worker is provided.
An air passage 5 having an air outlet 5a is provided above the operator, and a filter 4a and a blower 6 are provided in the middle of the air passage 5 to form an airflow from above the operator to the lower front. The filter is opened just after the generated dust is scattered, and the air containing the dust is guided to the bag filter chamber 4 through the intake chamber 3 and the filter 4.
The dust is collected by a, and the collected dust is dropped by intermittently hitting the filter 4a with the vibrating rod 4b and collected in the drawer 7k. Most of the dust is guided to the bag filter 4a, and the dust is collected by the filter 4a. It is possible to collect the dust, scattering of dust, accumulation on the work table 1b, the floor and the like is significantly reduced, and the working environment is significantly purified.

A dust passage 7 is provided for communicating the vicinity of the work table 1b with the intake chamber 3, and the dust passage 7 is provided.
By incorporating the blower fan 7h on the way, the amount of air circulation can be reduced, and the energy burden can be reduced.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention,
An apparatus using the belt sander 1 in the dust processing apparatus will be described with reference to the drawings. First, belt sander 1
To explain, 1a is a rectangular parallelepiped base frame,
A pillow 1p extending in the front-rear direction is provided at the left and right lower ends. Hereinafter, the front side of the worker is referred to as a front side, and the rear side is referred to as a rear side.

The main body of the belt sander 1 will be described. Reference numeral 1b denotes a work table provided at the front lower portion of the base frame 1a and which can be adjusted up and down. 1c and 1d denote drive rollers provided at right and left of a middle height. , Driven roller, 1
Reference numerals e and 1e denote a pair of horizontal pivots 1f and 1f, respectively, which are arranged side by side in the center upper part of the base frame 1a and are supported in the front-rear direction. ) Is pivotally supported on the pivot 1e, a weight 1g for position adjustment is mounted on the free end side, and a tension roller 1h is supported on the other front-rear portion.

[0008] 1j is a driving roller 1c, a driven roller 1
d and an endless belt stretched around the corresponding front and rear tension rollers 1h, and a sand of high hardness for polishing is firmly applied to the outer surface. The front endless belt 1j is a driving roller 1c, a front portion of a driven roller 1d, and a front tension roller 1h, and a rear endless belt 1j is a driving roller 1c, a rear portion of a driven roller 1d, and a rear tension roller. 1h
Then, they are stretched side by side in parallel. The drive roller 1c, the driven roller 1d, the front and rear tension rollers 1h and the endless belt 1j except for the horizontal portion, and the front and rear and left and right covers 1k for preventing danger and scattering of generated dust. It is covered with.

Next, a description will be given of a clean air circulation mechanism for forming a purified air flow from the upper part of the worker toward the lower front part. The surrounding partition wall. 2b is an extended portion formed by extending only the frame of the upper horizontal portion of the partition wall 2a backward and bending the rear portion into a U-shape as viewed from the side, and 2c is placed on the extended portion 2b. The eave portion is provided, and a vinyl sheet is stretched on the upper surface and front, rear, left and right side surfaces of a lightweight frame whose upper surface is bent in a V-shape larger than the extended portion 2b.

Reference numeral 3 denotes a plurality of intake chambers provided in the width direction in front of the base frame 1a and in front of the lower part of the worker, and has an air intake port 3a communicating with the inside of the partition wall 2a at the rear side. . 4
Is a bag filter chamber provided with a ceiling 3b of the intake chamber 3 therebetween, and a plurality of communication ports 3c provided in the ceiling 3b of each intake chamber 3 are covered with a bag filter 4a. 5 is the upper surface of the bag filter chamber 4 and the eaves portion 2c.
And a blower 6 is incorporated between the air passage and the bag filter chamber 4. In addition,
Reference numeral 3d denotes a damper provided in each intake chamber 3 below the communication port 3c, and a lower end thereof is fixed to a horizontal damper shaft 3e which is supported in the left-right direction. When it is tilted to the opposite side, the inside of the compartment 2a, below the work table 1b and the bag filter chamber 4 communicate with each other, and when it is tilted to the rear side Z (the side of the worker), the work table 1b lower and the bag filter chamber 4 are shut off. It is to be done.

Here, the dust passage 7 will be described. Activate the driving roller 1c and move the endless belt 1j.
, The work W is sandwiched between the work table 1b and the downstream side of the horizontal portion of the endless belt 1j,
When polished, the generated dust scatters in the running direction of the endless belt 1j. A collecting cylinder 7 which is opened in the direction of scattering of the dust of the cover 1k to collect and draw out the scattered dust.
a, and a flexible hose 7f is connected to a discharge port 7b provided at the lower end thereof, and the other end of the flexible hose 7f is tilted to the front side Y (opposite to the worker) with the damper 3d. To any one of the intake chambers 3. At this time, for example, one end of the flexible hose 7f is inserted so that air and dust are efficiently guided from the other end of the flexible hose 7f to the communication port 3c to prevent air leakage from the periphery at the other end of the connected cylinder. It is preferable to incorporate the blower fan 7h in the middle of the wind guide member 7g, flexible hose, or the like 7f to which the flange is connected.

Reference numeral 7k denotes a drawer for dust collection which is inserted into each intake chamber 3 from the front side. The bag filter 4a is driven by a shaking mechanism (not shown) with the damper 3d lowered to the front side Y. When the dust is hit with the vibrating rod 4b, the dust adhering to the bag filter 4a peels off and collects therein. If necessary, the drawer 7k is pulled out, and the collected dust can be disposed of properly, such as disposal. .

Further, the air outlet 5a inserted into the eaves portion 2c of the air passage 5 and the lower surface of the eaves portion 2c are covered with vinyl mesh sheets 8a and 8b, and a vinyl cord 8c is suspended around the lower end of the eaves portion 2c. It is. A curtain 8d for preventing flying out of dust is provided along the rear side of the downstream half of the horizontal portion of the endless belt 1j.

First, the blower 6 and the driving roller 1c are started. In addition, one damper 3d of the suction chamber 3 is previously tilted to the front side Y to communicate the inside of the partition wall 2a with the bag filter chamber 4, and the suction chamber 3 and the discharge port 7b at the lower end of the collection cylinder 7a are flexible. Connect with hose 7f etc. By doing so, the circulation passing through the air passage 5, descends uniformly from the eaves portion 2 c to the lower front over the entire width of the worker, and is further guided to the intake chamber 3 and the bag filter chamber 4 in the partition wall 2 a. As the air flow is formed, the two endless belts 1j, 1j start running. Therefore, when the work W is sandwiched between the work table 1b and the downstream side of the horizontal portion of the endless belt 1j and polished, dust is generated and scattered in the traveling direction of the endless belt 1j.

However, since the portion where dust is generated and scattered is covered with the cover 1k, the dust jumps into the collecting cylinder 7a. The dust that has flown into the collection tube 7a is entrained by the flow of air, passes through the cover 1k, the collection tube 7a, the flexible hose, etc. 7f, and falls the damper 3d to the front side Y (opposite to the worker). The air is efficiently guided to the bag filter chamber 4 through the suction chamber 3 in a state of being deflected, and jumps into the bag filter 4a to be collected. Further, the dust collected by the bag filter 4a moves the damper 3d to the front side Y.
Is beaten intermittently with a vibrating rod 4b driven by a shaking mechanism in a state of being tilted, peeled, dropped and pulled out 7k
Therefore, if necessary, the drawer 7k can be pulled out, and the accumulated dust can be disposed of appropriately, such as by disposal. Therefore, the generated dust scatters in the partition wall 2a, or the work table 1
b, it hardly pollutes the working environment, such as collecting on the floor or the like.

Further, vinyl mesh sheets 8a and 8b are attached to the opening end of the air passage 5 into the eaves portion 2c and the lower surface of the eaves portion 2c, so that the air flow blows uniformly downward from the entire lower surface of the eaves portion 2c. As a result, the circulating air slowly flows down between the worker and the main body of the belt sander 1, so that the airflow is extremely soft and comfortable. Moreover, since a vinyl curtain 8c is suspended around the lower end of the eaves portion 2c, there is little air leakage from outside the work space surrounded by the partition wall 2a and the eaves portion 2c. When limited air conditioning is performed, the energy burden can be significantly reduced.

As described above, the air circulation member 7g is interposed between the flexible hose 7f and the intake chamber 3, and the ventilation fan 7h is interposed in the middle of the flexible hose 7f. Thus, the amount of air introduced into the dust generating portion can be increased, the rate of introducing the generated dust into the bag filter 4a can be further increased, and the power consumption can be reduced.

[0018]

[Effects of the Invention] Since the present invention is configured as described above, (A) dust generated by polishing or the like scatters in the partition wall 2a or accumulates on the work table 1b, the floor or the like. It hardly pollutes the working environment. (A) The air contact with the worker is extremely soft and comfortable, the air leakage from the outside of the working space is small, and the energy burden when air conditioning is limited to this space can be significantly reduced. . (C) Even if the total amount of circulating air is reduced, the amount of air introduced into the dust generating portion can be increased, and the rate of introducing the generated dust into the bag filter 4a can be further increased, resulting in a reduction in power consumption. Can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an entire apparatus according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of a belt sander device according to an embodiment of the present invention.

FIG. 3 is a partially cutaway plan view of a belt sander device according to an embodiment of the present invention.

FIG. 4 is a partially cutaway front view of the belt sander device according to the embodiment of the present invention.

FIG. 5 is a vertical sectional side view of a main part of the belt sander device in one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Belt sander 1a Base frame 1b Work table 1c Drive roller 1d Follower roller 1e Horizontal pivot 1f Lever 1g Weight 1h Tension roller 1j Endless belt 1k Cover 1p Pillow 2a Partition wall 2b Extension part 2c eaves part 3 Intake room 3a Air inlet Ceiling 3c Communication port 3d Damper 3e Damper shaft 4 Bag filter chamber 4a Bag filter 4b Vibrating rod 5 Air passage 5a Air outlet 6 Blower 7 Dust air passage 7a Collection cylinder 7b Discharge port 7f Flexible hose etc. 7g Wind guide member 7h Fan 7k drawer 8a vinyl mesh sheet 8b vinyl mesh sheet 8c curtain 8d curtain W work Y front side Z rear side

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 47-26094 (JP, U) JP-A 51-166287 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B23Q 11/00 B24B 55/12

Claims (2)

(57) [Claims] 1. A partition wall (2a) surrounding a dust generating and processing apparatus.
And an air inlet (3
a) an air intake chamber (3) having an opening, an air passage (5) having an air outlet (5a) opened above the worker from the air intake chamber (3), and the air passage (5). By providing a filter (4a) and a blower (6) on the way, it is configured to form an air flow from above the operator to the lower front, and is opened immediately after the generated dust scatters.
The air containing dust is guided to the bag filter chamber (4) through the suction chamber (3), and the dust is captured by the filter (4a).
Filter the collected dust with a vibrating rod (4b)
(4a) is dropped intermittently by tapping and stored in the drawer (7k).
Dusting cutting machines, grinding machines for air purification apparatus characterized by comprising Te fit. 2. A work table (1b) and a suction chamber (3).
2. An air purifying apparatus for a dust generating cutting machine / polishing machine according to claim 1, wherein a dust air passage (7) communicating with the air passage is provided, and a blowing fan (7h) is incorporated in the dust air passage (7). .