JPH033887Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention (1) Industrial field of application The invention consists of a hood that continuously covers the upper part of a continuous work line, and an exhaust gas connected to the upper center of the hood in the width direction. The present invention relates to an air exhaust device comprising a duct.

(2) Conventional technology Conventionally, such air exhaust devices have been used in work lines where welding such as MIG welding, TCG welding, arc welding, etc. is carried out while continuously transporting workpieces, for example in automobile manufacturing factories or home appliance manufacturing factories. The hood is provided to maintain a good work environment by discharging smoke generated in the work line, and the smoke generated in the work line is simply sucked into a hood that opens downward and discharged.

(3) Problems to be solved by the invention By the way, in the above-mentioned conventional type, since the exhaust duct is connected to the upper part of the widthwise center of the hood, the suction force at the widthwise center of the hood is strong. The suction force becomes weaker toward both sides, so although it is effective in discharging smoke generated in the center of the width direction of the work line, it also effectively sucks in and discharges smoke generated on both sides of the work line. I couldn't do it.

The present invention was developed in view of the above circumstances, and its purpose is to provide an air exhaust device that effectively sucks and exhausts smoke and dust generated on a work line regardless of the location where the smoke and dust are generated. shall be.

B. Structure of the invention (1) Means for solving the problems According to the invention, a rectifier is provided that extends from a portion corresponding to the center in the width direction of the hood to both sides and forms an inlet between both ends of the hood and between the hood. A plate is suspended from the hood via a plurality of hanging members, and the current plate is bent toward both sides so as to approach the hood.

(2) Effect Since the suction ports connected to the exhaust duct are formed near both ends of the hood in the width direction, smoke and dust generated on both sides of the work line are easily sucked into the suction ports, and smoke and dust generated in the center are easily sucked into the suction ports. Smoke and dust are also guided to the suction port by the bent rectifier plate.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, a continuous work line, for example, an automobile body manufacturing line 1 is shown.
When assembling parts to the car body 3, which is transported on a traveling trolley 2, welding work such as TIG welding, MIG welding, and arc welding is performed, and the smoke and dust generated during this process are The air is discharged by an air exhaust device that covers the upper part of the vehicle body manufacturing line 1.

The air exhaust device includes a hood 4 that continuously covers the upper part of the vehicle body manufacturing line 1, and a plurality of exhaust ducts 5 that are connected to each other at the upper center of the hood 4 in the width direction.

The hood 4 consists of a top plate 6 that slopes downward toward both sides, and side plates 7, 7 that hang down from both ends of the top plate 6, respectively. This food 4
Openings 8 are provided in the central portions of the hood 4 at intervals in the longitudinal direction, and the exhaust duct 5 is connected to the openings 8 at the upper center of the hood 4 in the width direction. Ru.

An exhaust fan 9 is disposed within the exhaust duct 5 , and a motor 10 of the exhaust fan 9 is supported and fixed to the inner surface of the exhaust duct 5 via a support member 11 . In addition, the exhaust duct 5 is located below the exhaust fan 9.
A damper 12 for adjusting the displacement is disposed inside. Further, a filter 13 is detachably attached to the lowermost end of the exhaust duct 5, that is, the opening 8.

A current plate 15 is suspended from the hood 4 via a plurality of hanging members 14 . The current plate 15 is formed so as to extend from a portion corresponding to the widthwise center of the hood 4 to both sides, and to be bent upward toward both sides, that is, to approach the top plate 6 of the hood 4. It is suspended from the hood 4 with a passage 16 formed therebetween. In addition, suction ports 17 extending along the longitudinal direction of the hood 4 are formed between both ends of the current plate 15 in the width direction and the hood 4.

Guide plates 18 bent inward are fixedly provided at both widthwise ends of the current plate 15, respectively.

The guide plate 18 may be integrally formed by bending both ends of the rectifying plate 15, or may be fixed by welding. Moreover, each guide plate 18 is inclined toward the center of the hood 4 in the width direction so as to approach the hood 4, and therefore each of the suction ports 17
is formed to become narrower as it goes inward.

Next, the operation of this embodiment will be explained. When the motor 10 is operated while adjusting the opening degree of the damper 12 by a control circuit (not shown), negative pressure is generated in the passage 16 due to the rotation of the exhaust fan 9, and the hood 4 is heated. The air from below is discharged from both suction ports 17 to the outside through the passage 16 and the exhaust duct 5.

At this time, the smoke and dust generated at the center in the width direction of the car body manufacturing line 1 rises and then reaches the rectifying plate 15.
is guided to both sides by the lower surface of both suction ports 17,
17 into the passage 16. Further, smoke and dust generated on both sides of the vehicle body manufacturing line 1 rise and are sucked into the passage 16 through the suction ports 17, 17.
The air sucked into the passage 16 is purified by the filter 13 and then exhausted from the exhaust duct 5.

By the way, the upper surface of the rectifier plate 15 is inclined downward toward the center in the width direction, so when the air flow stagnates in the passage 16, dust and the like contained in the air accumulates on the rectifier plate 15. There is a risk. However, since the suction ports 17 become narrower as they move inward, air is sucked into the center of the hood 4 in the width direction at a high speed at each of the suction ports 17, 17. As a result, the sucked air passes through the filter 1
3, and dust etc. are collected by the filter 13.

In this way, the exhaust fan 9 and the motor 1
Even if the capacity of 0 is relatively small, the body production line 1
Smoke, dust, etc. generated by the system can be efficiently exhausted, and the small capacity can also reduce noise and vibration.

C. Effects of the invention As described above, according to the invention, the current plate extends from a portion corresponding to the widthwise center of the hood to both sides and forms a suction port between both ends of the hood and between the hoods. It is suspended from the hood via a member, and the current plate is bent toward both sides so as to approach the hood, so the suction ports are formed near both ends of the hood.
Smoke, dust, etc. generated anywhere on the work line can be guided to the suction port and efficiently discharged, and the capacity of the fan can be reduced accordingly to suppress noise and vibration.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view, and FIG. 2 is a view taken in the direction of the arrows in FIG. 1. 1...Car body manufacturing line as a work line, 4
... Hood, 5 ... Exhaust duct, 14 ... Hanging member, 15 ... Current plate, 17 ... Suction port.

Claims (1)

[Claims for Utility Model Registration] (1) An air exhaust device comprising a hood that continuously covers the upper part of a continuous work line and an exhaust duct connected to the upper center of the hood in the width direction, A rectifier plate that extends from a portion corresponding to the center in the width direction to both sides and forms an inlet between both ends and the hood is suspended from the hood via a plurality of hanging members. An air exhaust device characterized in that it is bent toward the hood as it approaches the hood. (2) A request for registration of a utility model, characterized in that guide plates are fixed to both ends of the rectifying plate, respectively, the guide plates bending inward and sloping upward toward the center in the width direction of the hood. Air exhaust device as described in paragraph (1) of the scope.