JPS59169565A - Applicator for vehicle - Google Patents

Abstract

PURPOSE:To improve the effect and efficiency of application, by providing a frame capable of changing its relative position against a vehicle below the vehicle, further dottedly providing the group of nozzles having circularily swingable nozzle openings at the frame, and changing the swinging direction of each nozzle between the lengthwise and widthwise directions of the vehicle. CONSTITUTION:A frame 2 is provided below a vehicle W to be coated, in a manner such that its relative position against the vehicle W can be changed. A plurality of nozzles 9 for atomizing paint toward the lower surface of the vehicle W are dottedly provided at said frame 2. The openings of the nozzles 9 are made individually circularily swingable back and forth, and the nozzles 9 are pivoted through pins to the upper piece of a nozzle holder 8 so that the swinging direction of the nozzles 9 can be changed to the lengthwise and widthwise directions of the vehicle W.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to a painting device for automatically painting the underside of a vehicle.

Conventionally, when painting the underside of a vehicle, members with a U-shaped or L-shaped cross section were often used for the vehicle frame.
Since the underside of the vehicle has a complex uneven surface, it becomes impossible or difficult to paint the area near the inside underside of the hood, and the equipment becomes complicated to uniformly paint the entire surface, and the painting process becomes difficult. There was a problem that the process became complicated.

In view of the above reasons, an object of the present invention is to provide a coating device for a vehicle that can uniformly and effectively apply paint to the underside of a vehicle, which has a complex uneven surface, thereby improving the coating effect and coating efficiency. It is.

Next, an embodiment of the present invention will be explained according to the drawings. In the drawing, P is a pit, S is a vehicle placed in parallel across a bit P, and 1 is a vehicle that is painted on the bottom seven sides. A trolley for the painting device T that is installed so that it can move back and forth in the longitudinal direction of the vehicle S, that is, in the longitudinal direction of the vehicle S. A frame 2 in which support frames 2a to 2a are arranged in parallel is installed at the front, center, and rear of the truck, and a frame 2 on the upper surface of the truck 1 is installed.
A pump 3 connected via a hose 4 to a paint supply device (not shown) is installed inside.

5A, 5B, and 50 are first . The second and sixth substrates are each formed in an oblong shape with a length that can pass between the left and right wheels W, W of the vehicle S, and the first substrate 5A
is fixed to the upper surface of the support frame 2a at the front part of the frame 2 and placed horizontally in the vehicle width direction, while the second board 5B and the sixth board 5C are attached to the upper surface of the support frame 2a at the center and rear part of the frame 2, respectively. Two air cylinders 6 fixed in opposite directions
゜They are connected to the tips of the pistons 6a and 6a in B through connecting members 28 and placed horizontally so that they can slide in the vehicle width direction, and the pistons 6a move by ventilating both air cylinders 6. When the piston 6a leaves, the second board 5B is extended to the left in FIG. 2, and the sixth board 5C is extended to the right in the diagram. Each is pulled inward and held in a parallel position with the first substrate 5A.

7 to 7 are arms projecting apart from the sides of each of the substrates 5A to 5; 8 to 8 are nozzle holders supported horizontally rotatably at the tips of each arm 7; It includes an upper piece 8a having a U-shaped cross section, a shaft rod 8b hanging below the upper piece 8a, and a leg piece 8C having an inverted cross-section and connected to the lower end of the upper piece 8a. There is.

9 to 9 are bottles 10 for the upper piece 8a of each nozzle holder 8.
In this example, the front row nozzle group 9A and the second , two groups of two rear row nozzles 9 supported via nozzle holders 8 on the sixth substrates 5B and 5C, respectively.
B are arranged in a dotted manner on the frame 2, and are each connected to the pump 6 so that the opening and closing of the flow path can be controlled. The paint can be sprayed in a substantially fan shape from a to the lower surface of the vehicle, and when the second and sixth substrates 5B and 5c are extended to both sides, the entire width of the lower surface of the vehicle can be coated.

Reference numeral 11 denotes an air cylinder attached upward to the lower end of the leg piece 8C of each nozzle holder 8, and a connecting member 29 provided at the tip of each piston 11a connects the nozzle 9 to the center of the nozzle 9. Projection piece 9b jutted out nearby
When the air cylinders 11 are ventilated and the pistons 11a move forward and backward, each nozzle 9 swings about the pin 10 in an oscillating shape, and the nozzle holes 9a rotate in a circular manner. By reciprocating along an arcuate trajectory (see FIG. 5), the coating area of the paint sprayed from the nozzle hole 9a is expanded.

Numerals 12 to 12 are near rotors respectively attached to the nozzle 9 side end surfaces of the central portions of each of the substrates 5A to 5C, and connecting members 13 to 16 are fitted to the rotor shafts 12a, respectively.
When each air rotor 12 is driven, each connecting member 16
is horizontally rotated left and right within a range of approximately 90°.

14 to 14 are each connecting member 13 and each nozzle holder 80
In order to operatively connect the levers 15 to 15 fitted to the shaft rod 8b, the left and right portions of the first substrate 5A and the second
Interlocking rods are mounted parallel to each other on the left side of the substrate 5B and the right side of the sixth substrate 5c, and when each near rotor 16 rotates, each nozzle 9 is connected to the hoist via each interlocking rod 14. It is horizontally rotated within a range of 90 degrees (see FIG. 6), and the direction of swing of each nozzle 9 can be switched to the longitudinal direction or the width direction of the vehicle S.

Reference numerals 16A and 16B are front and rear obstacle sensing antennas fixed to the left front end and right rear end of the upper end of the frame 2, respectively, and extended laterally in opposite directions, and are When the antenna 16A detects the approach to the wheel W, this detection signal causes both the air cylinders 6 to
operates and the pistons 6a in the forward position move out, respectively.
Second. Along with the sixth substrates 5B and 50, the rear row nozzle group 9B
pass between the wheels W on both sides while being displaced inwardly, and on the other hand, when the nozzle group 9B in the rear row passes between the wheels W on both sides, after this passage is detected, a detection signal from the antenna 16B indicates that the rearward state is detected. Both pistons 6a move forward,
The nozzle group 9B in the rear row is separately displaced to both sides and faces the outer portions of both wheels W on the lower surface of the vehicle, and these outer portions are painted by the nozzle group 9B in the rear row.

In addition, when the coating device T passes below the vehicle S, this passage is detected and the coating device T is placed on the path of the coating device T.
A detection device (not shown) that transmits a detection signal for reversing the running direction of the air rotor 12 and rotating the air rotor 12 to approximately rotate the swinging direction of each nozzle 9 by 2O4, and a flow path to each nozzle 9. - A detection device (not shown) that sends a signal for opening/closing control is provided.

Next, the operation and effects of the embodiment having the above configuration will be explained.

First, when painting the lower surface of the vehicle, the pistons 6a of both air cylinders 6 move forward and the second. With the fifth boards 5B and 50 extended to both sides, the trolley 1 snaps)
When the nozzle group 9A in the front row reaches the lower position of the vehicle while traveling forward in the vehicle P, the flow path to each nozzle 9 is opened and the air cylinder 11 is activated to direct each nozzle 9 in the longitudinal direction of the vehicle or the vehicle. Swinging in the width direction and spraying of paint from each nozzle hole 9a are started. Furthermore, when the front row nozzle group 9A reaches the vicinity of the wheel W, the screw holes 6a of both air cylinders 6 are moved by the detection signal of the front antenna 16A, and the rear row nozzle group 9B is displaced inward, and the parallel The front and rear row nozzle groups 9A and 9B pass between the wheels W on both sides, and after passing, the air cylinder 6 is activated by the detection signal of the rear antenna 1 (SB).
The piston 6a moves forward, and the nozzle groups 9B in the rear row are again displaced to both sides and return to their original positions, and the above-mentioned operations are repeated every time the wheel W passes. When the coating device T passes below the vehicle S, the detection device detects that the
At the same time, the running direction of the is reversed, each near rotor 12 is operated, and each nozzle 9 is turned on. 900 turns and each nozzle 9
On the return journey of the bogie 1, each nozzle 9 moves in the longitudinal direction while swinging in a direction that is 90° rotated from the direction in which the bogie 1 swings on the outbound journey, and the nozzles 9 in the rear row 9B repeats the displacement operation in the vehicle width direction in the same manner as on the outward trip, and the coating device T is returned to its original position.

Therefore, the automatic coating operation of each nozzle 9 on the lower surface of the vehicle is performed smoothly, and the lower surface of the vehicle S is effectively coated, thereby improving the coating efficiency.

In particular, each nozzle 9 is moved while swinging in an oscillating manner,
In addition, by switching the swinging direction between the vehicle length direction and the vehicle width direction, paint can be applied evenly and effectively to the underside of the vehicle, which has complex irregularities, especially near the inside underside of each profile. , which has the advantage of significantly improving the coating effect on the entire underside of the vehicle.

Moreover, since the rear row nozzle group 9B can be displaced in the vehicle width direction depending on the presence or absence of an obstacle during movement, the outer parts of both wheels W on the lower surface of the vehicle S can be reliably painted.

That is, the present invention provides a frame that is movably disposed below a vehicle to be painted and is positioned relative to the vehicle, and has nozzles arranged in a dotted manner for spraying paint toward the underside of the vehicle. The group is swingably supported so that the nozzle hole of each nozzle is reciprocated in an arc shape during paint spraying, and the direction of the swinging force of each nozzle is set in the longitudinal direction of the vehicle and the vehicle. By providing switching means for turning in the width direction, the coating effect and coating efficiency on the underside of the vehicle can be improved, so this invention is extremely excellent as a coating device for a vehicle.

In the above embodiment, the vehicle is stopped and the coating device is moved, but the coating device may be fixed and the vehicle moved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an overall perspective view, FIG. 2 is a plan view of the coating device, FIG. 6 is a rear view, FIG. 4 is a side view, and FIG. 5 is a side view. 6 is an enlarged side view of the nozzle, and FIG. 6 is a plan view thereof. 2...Frame 9...Panozzle 9a...
Nozzle hole 12...Near rotor S...Vehicle
T...Painting equipment Applicant: Meitetsu Automobile Maintenance Co., Ltd. Agent: Patent attorney Oka 1) Hidehiko, Figure 6, Figure C

Claims (1)

[Claims] A frame that is movably disposed below the vehicle to be painted relative to the vehicle has a group of nozzles arranged in a dotted manner for spraying paint toward the underside of the vehicle. The nozzle holes of each of the nozzles are swingably supported so as to reciprocate in an arc shape during spraying, and the swinging direction of each nozzle is rotated between a vehicle length direction and a vehicle width direction of the vehicle. 1. A painting device for a vehicle, characterized in that it is provided with a switching means for doing so.