JPH04190866A - Dust removing apparatus - Google Patents

Abstract

PURPOSE:To certainly remove the ground refuse bonded to the surface of a work by providing a moving part advancing and retracting a principal part with respect to the work, a varnish waste running part, a varnish waste running and driving part and a varnish waste pressure contact part to a dust removing unit part. CONSTITUTION:The ground refuse transferring varnish waste 5 set to a delivery drum 9 is delivered by the delivery drum 9 rotated in a clockwise direction and pulled under tension without being shifted by rollers 24, 24 with projection and a taking-up drum 10 rotated in the counterclockwise direction and taken up by the taking-up drum 10 through the guide roller 23 on a taking-up side. When the car body W placed on a dolly truck 3 approaches a dust removing apparatus, a car kind detection switch 50 detects the kind of a car. On the basis of the car kind detection data, the varnish waste 5 is brought into contact with the side surface of the car body W. In this state, the varnish waste 5 is allowed to run and air is injected from air jet orifices 35 to bring the varnish waste into close contact with the car body W. By this method, dust is certainly and efficiently removed and the car body having a clean surface can be sent to the next process.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dust removal device that removes dust such as abrasive slag that has adhered to the surface of a workpiece, and in particular, removes dust such as abrasive slag that has adhered to the surface of the workpiece that is generated during the process of correcting painting defects. This invention relates to a dust removal device that reliably removes dust.

[Conventional technology]

Generally, car body painting is a high-quality paint, so it is performed in several steps: surface treatment, undercoat, intermediate coat, and topcoat.

If a coating defect occurs during each painting process, grinding,
Defective areas are corrected by polishing.

When such repair work is performed, the abrasive particles generated during the work adhere to the surface of the vehicle body. If the next painting is performed while the abrasive slag remains on the surface of the car body, a coating defect will occur again at the location where the abrasive slag has adhered.

Therefore, it is necessary to remove the abrasive slag that adheres to the surface of the car body during repair work.

Conventionally, as a means of removing abrasive particles attached to the surface of the car body,
For example, there is a dust suction device disclosed in Japanese Utility Model Application Publication No. 63-126079.

The above-mentioned dust suction device blows air onto the surface of the vehicle body, and at the same time sucks and discharges the abrasive particles floating from the surface of the vehicle body.

[Problem to be solved by the invention]

However, since spraying and suction are performed in close proximity, the effectiveness of spraying may be diminished, and relatively large amounts of dust and slag may remain on the vehicle body.
A sufficient dust removal effect could not be obtained for the purpose of high-quality coating.

SUMMARY OF THE INVENTION An object of the present invention is to provide a dust removal device that reliably removes poured abrasive slag from a painted surface by correcting paint defects after painting in a repair process.

[Means to solve the problem]

In order to solve the above problems, the dust removal device of the present invention has the following features:
It consists of an arch-shaped frame section that stands upright at a position where the workpiece passes, and a dust removal unit section that is installed above and inside each side of the frame section. a moving part that advances and retreats the part;
A varnish swath traveling section that winds up the varnish swath fed from a feeding drum on one side onto a take-up drum on the other side, a varnish swath traveling drive section consisting of a drive source and its transmission means, and a varnish swath that presses the traveling varnish swath against a workpiece. It is characterized by being provided with a pressure welding part and an air jetting part that integrally advances from the back side of the varnish cloth to the work side and blows air to the back side of the varnish cloth.

[Effect]

In the dust removal device of the present invention, when a car body is transported into the frame, one dust removal unit installed oppositely inside the frame advances to the car body side according to the car type detected in advance, and the tension on both sides is increased. The varnish cloth stretched between the rollers is pressed against both sides of the vehicle body as shown in FIG.

When the varnish swath is run in this state and air is blown from the back side of the varnish swab, dust such as abrasive slag is transferred to the varnish swab.

The varnish swath to which the abrasive slag has adhered is wound onto a winding drum.

Furthermore, as the vehicle moves forward, the dust removal unit installed at the top of the frame advances to the top of the vehicle, removing the varnish rag from the fourth
Press it against the top of the vehicle body as shown in the figure.

When the varnish rag is run in this state and air is blown from the back side of the varnish rag, the varnish rag sticks closely to the car body, and dust such as abrasive slag attached to the car body is transferred to the varnish rag. The varnished cloth is
It is wound onto a winding drum.

The car body from which dust has been removed is transported to the next process.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment in which a dust removal device according to the present invention is applied to a painted car body will be described in detail with reference to the drawings.

The dust removal device according to the present invention includes a frame 1 erected so as to straddle a position where a painted automobile body (work) W passes, and a pedestal arranged above and inside each side of the frame 1. The main part consists of the dust removal unit 60.

As shown in FIGS. 1 to 4, the painted car body W is placed on a dolly truck 3 via a pedestal 2, and is moved in the direction of the arrow (see FIG. 1) by a conveyor conveyor 4. .

Then, as shown in FIG. 3, dust removal work is first performed on both sides of the vehicle body W, and then, as shown in FIG. 4, dust removal work is performed on the upper part of the vehicle body W.

The dust removal unit 60 is a varnish rag running unit that includes a moving part that moves main parts forward and backward with respect to the vehicle body W, a varnish rag running part that runs the varnish rag 5 in the direction of arrow B (see FIG. 3), a drive source and its transmission means. It is composed of a driving part, a varnish cloth pressing part that presses the traveling varnish cloth 5 against the vehicle body W, and an air jetting part that advances toward the vehicle body and jets air to the back side of the traveling varnish cloth 5 (see Fig. 5). Ru.

A moving section for moving the main parts of the dust removal unit 60 forward and backward is composed of a servo motor 6, a guide rod 7.7, and a moving frame 8, as shown in FIGS. 3 and 4.

The movable frame 8 is connected to each tip of the rod 6a and guide rod 7.7 of the servo motor 6 that pass through the frame 1, and is moved by advancing and retracting the roller a of the servo motor 6.

The main parts of the varnish cloth running section are composed of a feeding drum 9 into which the wound varnish cloth 5 is sent, and a winding drum 10 which winds up the traveling varnish cloth 5.

As shown in FIG. 5, the feeding drum 9 is rotatably supported by a bracket 12 fixed to the middle of the support plate 11 and a bearing 8a extending from the movable frame 8.

The varnish swath traveling drive unit includes a motor 13 as a drive source, a drive pulley 14 that transmits rotation, a belt 15, and a driven pulley 16. Then, the rotation of the motor 13 is transmitted via the drive pulley 14, belt 15, and driven boob U16,
The feeding drum 9 is rotated clockwise as shown by arrow C in FIG. 5 to feed out the varnish rag 5.

Further, as shown in FIGS. 3 and 4, the winding drum 10 is disposed on both sides of the moving frame 80 in a symmetrical position with the feeding drum 9, and is fixed to the middle stage of the support plate 11 like the feeding drum 9. The movable frame 8 is rotatably supported by a bracket 12 and a bearing 8a extending from the movable frame 8. Then, the rotation of the motor 13 in the varnish cloth travel drive section is transmitted via the drive pulley 14, and the varnish cloth 5 is wound up by rotating clockwise as shown by the arrow in FIG.

The support plate 11.11 is fixed on the extension of the guide rod 7.7 in the moving frame 8, as shown in FIGS. Fix 17.

As shown in FIGS. 3 and 4, the main parts of the varnish cloth press-contact part are composed of a tension roller 18 on the side of the feeding drum 9 and a tension roller 19 on the side of the take-up drum 10. 1st, 19 is car body W
The varnish rag 5 that is being advanced to the side and is being moved is brought into pressure contact with the surface of the vehicle body W. The tension roller 18 described above is supported by the lower ends of swing arms 20 and 20, which are swingably supported by the lower ends of the moving frame 8 and the mounting plate 17, as shown in FIGS. 1 to 5. Ru.

As shown in FIG.
2 and urges the tension roller 18 outward.

Further, the tension roller 19 is connected to the tension roller 18.
Same as (the lower ends of the swinging arms 20 and 20 are swingably supported on the lower ends of the moving frame 8 and the mounting plate 17, respectively).

And the swinging arm 20.20 of the tension roller 19
is biased by a biasing member (coil spring) 22 whose one end is hooked to a hooking piece 21, and biases the tension roller 19 outward.

A locking piece 21 that locks one end of the biasing member 22 is attached to the lower end of the movable frame 8 and to the outside of each lower end of the mounting plate 17 .

The varnish cloth 5 fed out from the feeding dotem 9 is the fifth
As shown in the figure, the running varnish rag 5 is guided to the tension roller 18 by a guide roller 23, a protruding roller 24, and a grooved roller 25, which face each other and sandwich the varnish rag 5 therebetween.

The guide roller 23 described above is pivotally supported on the upper part of the moving frame 8 and the mounting plate 17, as shown in FIGS. 6 and 7.
The varnish rag 5 is guided to the tension roller 18 (1).

As shown in FIGS. 6 and 7, the protruding roller 24 is rotatably supported by the moving frame 8 and the mounting plate 17, and the rotation of the motor 26 is transferred to a transmission part 27 such as a drive pulley, a belt, or a driven pulley. The varnish swab 5 is transmitted through the tension roller 18 and rotated counterclockwise to actively send the varnish swath 5 to the tension roller 18 side without shifting it.

As shown in FIGS. 5V and 7, the grooved roller 25 is rotatably supported by the free end of a swing arm 30.30, and is biased toward the projection roller 24 by a biasing member (coil spring) 31. and is driven by the protruding roller 24.

At this time, the protrusion of the protruded roller 24
This shape allows the varnish swab 5 to be fed reliably without shifting.

As shown in FIGS. 5 to 7, the swing arm 30.30 has its base end pivoted to the inside of the moving frame 8 and the mounting plate 17 so as to be able to swing freely, and has an urging member latched to the middle stage. 31 toward the protruded roller 24 side.

Further, the other end of the biasing member 31, 31 is hooked to a spring receiver 32 attached to each of the moving frame 8 and the mounting plate 17, as shown in FIGS. 5 to 7.

Note that a guide roller 23, a protruding roller 24, and a grooved roller 25 are attached to the mounting plate I7 on the winding side.
installed symmetrically.

As shown in FIGS. 5 and 6, the air jet section includes manifolds 34 that are arranged in parallel and communicated through air introduction holes 33, and each manifold 34 has an air jet hole 35 bored on the side facing the vehicle body. As shown, air is ejected from the back side of the traveling varnish rag 5 to bring the varnish rag 5 into close contact with the surface of the vehicle body W, thereby transferring dust such as abrasive scum adhering to the surface of the vehicle body onto the varnish rag 5. The air introduction hole 33 on the air supply side communicates with a near compressor (not shown) through a flexible hose 29 (see FIG. 5).

The base of the air jetting section is fitted into the second housing plate 36 to form the air nozzle 28, and advances and retreats in one plane.

Then, the housing plate 36 is connected to the base plate 3.
It is connected to the mouth/7 door 38a of the servo motor 38 that passes through the servo motor 38 and to the tips of the guide rods 39 and 39, and moves as the rod 38a of the servo motor 38 advances and retreats.

The base plate 37 is connected to the moving frame 8 by connecting plates 40, 40, as shown in FIGS. 3-5.

50 (see FIG. 1) is a vehicle type detection switch installed on the entrance side of the dust removal device, and controls the dust removal unit 60 based on the detected information.

In the dust removal device having such a configuration, the varnish swab 5 for rolling the abrasives set on the feeding drum 9 is fed out by the feeding drum 9 which rotates clockwise, and the protruded roller 24, 24 which rotates counterclockwise. and is pulled by the winding drum 10 while applying tension without shifting, guide roller 23, roller with projection 24, roller with groove 25, tension roller 8, 19, roller with projection on the winding side 24, groove on the winding side. The film is wound onto the winding drum 10 via the attached roller 25 and the guide roller 23 on the winding side.

When the vehicle body W placed on the dolly trolley 3 via the pedestal 2 approaches the dust removal device, the vehicle type detection switch 50 shown in FIG. 1 detects the vehicle type.

Based on this vehicle type detection information, the dust removal unit 60.6o installed opposite to the inside of the frame 1 advances toward the vehicle body W side by each servo motor 6, and removes the varnish rag 5 stretched between the tension rollers 8.19 from the vehicle body W. Press it against the side of the

In this state, the varnish rag 5 is run, and air is blown out from the air outlet 35 to move the varnish rag 5 to the vehicle body W.
Closely contact.

When the vehicle body W is moved by the transport conveyor t, the abrasive slag adhering to both sides of the vehicle body W is reliably transferred to the varnish rag 5 and removed from the surface of the vehicle body. The varnish swab 5 to which the abrasive slag has been transferred is then wound onto a winding drum 10. Further, as the vehicle body W advances, a dust removal unit 60 disposed on the inner upper part of the frame 1 is moved by a servo motor 6 to move the vehicle body W. The varnish rag 5 extending to the upper surface and stretched between the tension rollers 18 and 19 is brought into pressure contact with the upper surface of the vehicle body W.

In this state, the varnish rag 5 is run, and air is blown out from the air outlet 35 to move the varnish rag 5 to the vehicle body W.
Closely contact.

Then, as the vehicle body W moves forward, the abrasive slag adhering to the upper surface of the vehicle body W is transferred to the varnish cloth 5 and removed from the surface of the vehicle body W.

The varnish rag 5 to which the abrasive slag has been transferred is wound up on a winding drum 10.

The car body W from which dust such as abrasive slag adhering to the surface of the car body has been removed is transported to the next process.

〔Effect of the invention〕

As described above, the dust removal device according to the present invention transfers dust such as abrasive slag that is generated during the paint correction process and adheres to the car body to the varnish swab that runs in close contact with the car body, and transfers the dust from the back side of the varnish swab to the car body side. Since air can be blown out, dust can be removed reliably and efficiently, and car bodies with clean surfaces can be sent to the next process.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an example of a dust removal device according to the present invention;
Figure 2 is a partially cutaway side view of the unit, Figure 3 is a front view showing the state of dust removal from both sides, Figure 4 is a front view showing the state of dust removal from the top, and Figure 5 is a partially enlarged view of the dust removal unit. 6 is a cross-sectional view taken along the line VT--Vl in FIG. 5, and FIG. 7 is a cross-sectional view taken along the line ■--■ in FIG. W... Car body (work) 1... Frame 3... Dolly trolley 5... Varnish cloth 8... Moving frame 9...・
...Feeding drum 10 ...... Winding tram
18, 19...Tension roller 23...
...Guide roller 24...Roller with protrusion 25
...Grooved roller 35...Air blowout hole

Claims (1)

[Claims] (1) Consisting of a frame section that is erected so as to straddle the position where the workpiece passes, and a dust removal unit section that is installed above and inside each side of the frame section, and the dust removal unit section is configured to remove dust from the workpiece. a varnish swath traveling section that winds up the varnish swath fed from a feeding drum on one side onto a winding drum on the other side, and a varnish swath traveling drive section that includes a drive source and its transmission means. A dust removal device characterized by being provided with: a varnish swab pressure contact part that presses a traveling varnish swab against a workpiece; and an air jetting part that integrally advances from the back side of the varnish swab to the workpiece side and blows air to the back side of the varnish swab.