JP2002361018A - Dust collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the weight of a case which houses functional parts used for dust collection with a dust collector. SOLUTION: A case 2 of the dust collector for welding fumes is formed to a longitudinally long rectangular parallelepiped shape consisting of four sheets of front, rear, right and left side plates 3, a bottom plate 6 and a top plate 8. The ends of the right and left side plates 3 at four corners of the case 2 are bent to a U shape in section, by which projecting bands 3a as reinforcing sections projecting to an outside surface side and extending in a height direction are formed. As a result, the required strength (rigidity) is assured and the case 2 not having a frame which is a heavy object is constituted without increasing the thickness of the side plates 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collector used for collecting welding fume such as smoke (gas), metal powder, oil mist and the like generated during a welding operation.

[0002]

2. Description of the Related Art FIG. 4 schematically shows a conventionally known vertical welding fume dust collector. The dust collector includes a vertically elongated box-shaped frame 102 and a frame 10.
And a case 101 formed by an outer plate 103 fixed (welded) around the periphery of the case 2.
Various functional components used for dust collection of the welding fume are stored and arranged therein. That is, the case 101 is on top,
It is divided into the middle and the lower three. The electric motor 104 and the suction fan 1 driven by the electric motor 104 are located below.
A control panel (not shown) is accommodated in an upper part of the apparatus, and an operation panel 106 on which operation switches are arranged is mounted. The middle part constitutes a filter tank 108 for storing the filter 107. The filter tank 108 is provided with a suction port 109 to which a suction hose (not shown) is connected. When the suction fan 105 is driven, welding fumes generated during welding work are removed from the suction port 109 through the filter tank 108.
After being suctioned into the filter tank and filtered by the filter 107 disposed in the filter tank 108 to be purified, it is discharged outside the machine through a duct (not shown). Case 1
01, a backwash tank 110 used for washing the filter 107 and its piping 111, or an electric wiring 11 for connecting the electric motor 104 and the control panel.
2 are provided.

[0003]

The welding fume dust collector having the above-described structure, that is, a vertical type in which the longitudinal direction of the filter 107 is set to the vertical direction, and the functional components such as the suction fan 105 and the filter 107 are arranged vertically. Since the case 101 has a vertically long shape in the dust collector for welding fume, there is an advantage that the installation area can be reduced as compared with a horizontal type in which functional components are juxtaposed horizontally. However, on the other hand, the case 101 needs to have a strength that can withstand the weight of the functional components due to the arrangement of the functional components vertically.
Conventionally, this is secured by a frame 102 as a strength member. For this reason, there is a problem that the weight of the case 101 increases and the whole dust collector becomes heavier. It should be noted that there is an idea that the frame 101 is omitted and the case 101 is constituted only by the outer plate 103,
In that case, in order to secure the strength, the plate thickness must be set to be considerably large, and as a result, it does not lead to a reduction in weight.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to reduce the weight of a case for storing a dust collecting functional component in a dust collector.

[0005]

Means for Solving the Problems To achieve the above object, a dust collector according to the present invention has a configuration as described in each of the claims. In the dust collector according to the first aspect, the case is formed in a box shape by an outer plate, and the outer plate is provided with a reinforcing portion that at least resists a load in the vertical direction. That is, instead of the frame as a strength member, a reinforcing portion is set on the outer plate to thereby secure the strength (rigidity) required for the case. Therefore, according to the first aspect of the present invention, it is possible to omit the frame without increasing the thickness of the outer plate, and the weight of the case is reduced. Further, since the frame is omitted, the step of assembling the outer plate to the frame (welding operation) is not required.

[0006] In the dust collector according to the second aspect, the reinforcing portion formed on the outer plate is constituted by a protruding band protruding from the outer surface side of the outer plate and extending vertically. For example, when the case is formed in a vertically long rectangular parallelepiped shape, the above-mentioned protruding band is preferably formed at four corners of the case along the vertical direction. When the protruding band is formed so as to protrude toward the outer surface side of the case, it can be easily formed by, for example, a press, and sufficient strength against compression and bending can be obtained.

In the dust collector according to a third aspect of the present invention, the dust collecting tank is housed and arranged in the case at a predetermined space in the plane direction, and the dust collecting tank is fixed to the case via fixing means. By joining together, a double structure composed of the case and the dust collection tank is formed. Thereby, at least for the region where the double structure is formed,
The rigidity in the vertical direction and the planar direction of the case can be respectively increased. Further, the space between the case and the dust collection tank can be used as an arrangement space for electric wiring and the like, for example.

[0008] In the dust collector according to any one of the first to third aspects, it is preferable that a suction mechanism and a filter used for dust collection are housed in the case side by side in the vertical direction. When such a configuration is adopted, the reinforcing portion formed on the outer plate functions effectively.

[0009]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. The present embodiment is applied to a welding fume dust collector that collects welding fumes such as smoke (gas), metal powder, and oil mist generated during a welding operation. 1 is an overall side view of a dust collector for welding fume, FIG. 2 is a sectional view taken along line BB of FIG. 1, and FIG.
It is a line sectional view. As shown in the drawing, a welding fume dust collector (hereinafter simply referred to as a dust collector) 1 has a vertically long rectangular box-shaped case (body) 2 for storing various functional components used for dust collection. As shown in FIG. 2, the case 2 is mainly composed of a square tubular case body 4 having upper and lower portions formed by four front, rear, left and right side plates 3. As shown in FIG. 1, the lower portion of the case body 4 is closed by a bottom plate 6 having an appropriate number of parts fixed to the lower end of the side plate 3 with bolts and nuts 5 as fastening means. Is closed by a top plate 8 having an appropriate number of parts fixed to the upper end of the side plate 3 with bolts and nuts 7 as fastening means.

As shown in the sectional view of FIG. 2, the four side plates 3 are joined together by bolts and nuts 9 as fastening means in a state where their widthwise ends are mutually overlapped. 4. At the four corners of the case body 4, projecting bands 3a having a substantially U-shaped cross section are formed so as to protrude outward. The protruding band 3a is provided over the entire height of the side plate 3 by bending the front and rear end portions of the left and right side plates 3 respectively. The protruding band 3a corresponds to the reinforcing portion referred to in the present invention, and the side plate 3 is used in the present invention. Corresponding to the outer plate. That is, by setting the protruding band 3a protruding to the outer surface side in the vertical direction on the side plate 3 constituting the case main body 4, a section coefficient relating to a corner is gained, thereby increasing the rigidity of the case main body 4.

As shown in FIG. 1, casters 11 are attached to the four corners of the lower surface of the bottom plate 6 so that the dust collector 1 can be moved as required. In the case 2, on the bottom plate 6, a suction mechanism unit 12 including an electric motor as a drive source and a suction fan driven by the electric motor is housed and arranged. That is, among the functional components, the suction mechanism 12, which is a heavy object, is disposed at the lowermost side.

The upper side of the case 2 is divided into a tank storage space in which the dust collection tank 13 is disposed and a control panel storage space in which the control panel 25 is disposed. Dust collection tank 1
As shown in FIGS. 1 and 3, the reference numeral 3 is formed in a substantially rectangular cross section, is housed and arranged at a predetermined space S with respect to the inner surface of the case body 4, and is supported by a tank support 14. The tank support 14 is arranged in a bridging manner at a substantially intermediate portion in the case main body 4, and the end portion is bolted to the side plate 3.
It is fixed with a nut 15. The dust collection tank 13 is placed on the tank support 14 and the bracket 16
And is fixed by bolts and nuts 17. In addition, it is preferable that the dust collection tank 13 is also fixed to the side plate 3 on the upper side as necessary. Thus,
The case 2 is, as shown in FIG.
And the wall plate 13a of the dust collection tank 13 has a double structure of a closed cross section, whereby the strength of the case 2 is increased. That is, in the region where the dust collection tank 13 exists, the rigidity of the case body 4 in the vertical direction and the surface direction is enhanced. In addition, the tank support 14 erected between the side plates 3 increases the surface rigidity of the opposing side plates 3, thereby preventing the side plates 3 from being deformed outward in a medium swelling shape or depressed inward. Works effectively in preventing.

A space S formed between the case body 4 and the dust collection tank 13 is omitted as a wiring space for electric wiring connecting the electric motor and the control panel 25, although not shown.
Alternatively, in order to clean the filter 18 in the dust collection tank 13, the filter 18 is used as an arrangement space for a backwash tank that blows cleaning air to the filter 18 and piping related thereto.

As shown in FIG. 1, a cylindrical filter 18 whose lower part is closed by a cover plate 18a and whose upper part is open is mounted in the dust collecting tank 13 in a suspended manner.
A dust collecting tray 19 is provided below the dust collecting tank 13, and the dust collecting tray 19 can be pulled out from an opening provided in the dust collecting tank 13 and the side plate 3 in a direction indicated by an arrow C in FIG. ing. As shown in FIG. 3, the dust collecting tank 13 is configured such that an end of an opening constituting a draw-out opening of the dust collecting tray 19 is overlapped with a terminal of the side plate 3 and fastened with bolts and nuts 20. . Further, a suction port 21 is set in the dust collecting tray 19, and welding fume generated at the time of welding is sucked into the suction port 21 through a hose 22.

The welding fume sucked into the dust collection tank 13 from the suction port 21 is filtered by passing through the filter 18, and the purified gas after filtration is filtered.
Flows out of the cylindrical hole into the closed space S1 formed above the dust collection tank 13. Thereafter, the purified gas that has flowed into the closed space S1 is discharged outside the machine via the suction duct 23, the suction mechanism 12 (fan), and the exhaust duct 24. In addition,
The suction duct 23 is opened to the closed space S <b> 1 and is piped through the inside of the dust collection tank 13. In FIG. 1, the flow directions of the welding fume and the purification gas are indicated by arrows.

As described above, the welding fume dust collector 1 according to the present embodiment is a so-called vertical type in which functional components used for dust collecting work are vertically divided and arranged in the case 2. The case 2 has a rectangular box shape that is long in the vertical direction. Such a vertical type has an advantage that the installation area in a use mode can be reduced as compared with a horizontal type, but the load per unit area due to the weight of the functional component acting on the case 2 increases. For this reason, in the past, a configuration in which the required strength was secured by a frame was adopted. In the present embodiment, however, projecting bands 3a as reinforcing portions are set at four corners of the case body 4 formed by the side plate 3. Thus, the thickness of the side plate 3 is set to be substantially the same as before, and the necessary strength of the case body 4 is secured. As a result, the number of components can be reduced, and a heavy frame as a strength member can be omitted. As a result, the weight of the case 2 can be reduced, and the entire dust collector 1 can be reduced in weight. Further, in the case of a structure using a frame as the strength member of the case 2, an assembling step of joining (welding) the side plates to the frame is required. According to the present embodiment, this assembling step can be omitted. it can.

Further, since the protruding band 3a is formed to have a U-shaped cross section so as to protrude to the outer surface side of the side plate 3, it can be easily formed, for example, when formed by pressing, and can be compressed and bent. On the other hand, sufficient strength can be obtained.

Note that the present invention is not limited to the illustrated embodiment, and can be appropriately changed without departing from the gist of the present invention. For example, in this embodiment,
As the reinforcing portions of the case 2, at the four corners of the case main body 4, the side plates 3 are provided with the protruding bands 3 a having a substantially U-shaped cross section. For example, an arc shape may be used. Further, an aspect in which the projection protrudes inward may be used instead of the aspect in which the projection protrudes outward. Further, although the corners of the case body 4 are effective for setting the projecting band 3a, the present invention is not necessarily limited to the corners. It is also possible. Further, the protruding band 3a can be provided not only on the side plate 3 but also on the bottom plate 6 or the top plate 8. Therefore, the outer plate in the present invention includes the bottom plate 6 and the top plate 8. In addition, the above-described embodiment has been described in the case where the present invention is applied to a welding fume dust collector that collects welding fumes. It can be applied to the collection of smoke and dust.

[0019]

As described in detail above, according to the present invention,
In the dust collector, the case for storing the functional component for dust collection can be reduced in weight, and thus the weight of the entire dust collector can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall side view of a welding fume dust collector.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a schematic perspective view showing a conventional welding fume dust collector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dust collector 2 Case 3 Side plate 3a Projection band 4 Case main body 12 Suction mechanism part 13 Dust collection tank 18 Filter

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazunori Takeshita 2-1-1 Toyota-cho, Kariya-shi, Aichi F-term in Toyota Industries Corporation (reference) 4D058 JA02 KC11 LA01 LA08 SA15 UA25

Claims (4)

[Claims] 1. A dust collector comprising a suction mechanism having a suction fan and a filter for collecting sucked dust in a case, wherein the case is formed in a box shape by an outer plate, A dust collector, wherein the outer plate has at least a reinforcing portion for resisting a load in a vertical direction. 2. The dust collector according to claim 1, wherein said reinforcing portion is constituted by a projecting band projecting from an outer surface of said outer plate and extending in a vertical direction. 3. The dust collector according to claim 1, wherein a dust collecting tank is accommodated in the case at a predetermined space in a plane direction, and the dust collecting tank is arranged in the case. A dust collector, wherein the case and the dust collecting tank are connected to each other via a fixing means to form a double structure. 4. The dust collector according to claim 1, wherein the suction mechanism and the filter used for dust collection are housed side by side in the case. And dust collector.