JPS6036367Y2 - painting equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a coating device, and by providing a spraying direction changing mechanism for changing the spraying direction of a spray gun on a base that reciprocates over a predetermined interval, the coating width is greater than the stroke of the base. To provide a coating device which can easily coat a painted object without changing the stroke and can completely eliminate unpainted areas near turning points of a base.

For example, reciprocating painting equipment is often used when painting products that are continuously manufactured in a factory.

This type of reciprocating painting device has a structure in which a base is attached to a reciprocator having, for example, an endless chain, and the chain is driven to cause the base to reciprocate over a predetermined range, during which paint is sprayed onto the product from a spray gun on the base. has been done.

However, in conventional painting equipment, the installation position of the spray gun is fixed, so there is a one-to-one correspondence between the stroke of the base and the painting width. The stroke of the base must be changed, which is very troublesome to operate, and it also has drawbacks such as not enough painting being done at the turning point of the base, which tends to leave unpainted spots on both ends of the painting width. Ta.

The present invention eliminates the above-mentioned drawbacks, and an embodiment thereof will be described below with reference to the drawings.

FIG. 1 is a schematic side view of an embodiment of the coating apparatus according to the present invention, and FIG. 2 is a perspective view of the main parts thereof.

, in FIG. 1, the coating device 1 is, for example, a trolley conveyor 2.
A base 5, on which two left and right spray guns 4a and 4b are attached so as to be swingable within a predetermined angle range, is moved vertically by a chain-type reciprocator 6. It is configured to paint the object 3 up and down while reciprocating.

The base 5 is detachably fixed to an appropriate location on the chain 6a.

The spray guns 4□a, 4b are connected to the connecting rod 7 as shown in Fig. 2.
attached to both ends of the

The connecting rod 7 passes through the other end of a rotating arm 9 whose one end is rotatably supported at the lower end of the bracket support member 8 of the base 5, and has a link immediately near the penetrating portion. 1
0 is fixed at one end.

A long hole 11 is bored at the other end of this link 10.
A connecting rod 12 is inserted through the elongated hole 11.

Both ends of the connecting rod 12 are engaged in engagement grooves 13 formed in the side walls of the spray guns 4a and 4b, respectively.

One end of the horizontal portion of the bracket 8 is attached to the chain 6a, and the cylinder 14a of the piston-cylinder mechanism actuator 14 is attached substantially vertically to the horizontal portion.

A horizontally convex plate 15 is attached to the lower end of the piston rod 14b, and the center of the plate 15 is connected to the connecting rod 1.
2 is inserted.

Stopper pins 15a and 15b are provided at both ends of the plate 15, respectively.
is installed to restrict extreme displacement of the link 10.

Note that the spray guns 4a and 4b are integrally constructed via a connecting rod 7.12 and a link 10, respectively.

A connecting rod 12 that connects the rear sides of the spray guns 4a and 4b is inserted into a plate 15 that is integral with the piston rod 14a, and a connecting rod 7 that connects the front sides of the spray guns 4a and 4b in the spraying direction is inserted into the bracket 8. Pivotally supported pivoting arm 9
It is inserted into.

For this reason, the spray guns 4a and 4b, as described later,
The front side of the spray gun 4ay4b is rotatably supported by a bracket 8, and the spray direction can be arbitrarily changed by moving the rear side up and down with the displacement of the piston rod 14a.

Here, the piston-cylinder mechanism 14 is configured to operate by switching the supply and discharge state of working air when the base 5 moves upward to the upper limit position and when it moves downward to the lower limit position, respectively. , cylinder 14a, piston rod 14b
1 plate material 15, connecting rod 12, link 10, rotating arm 9,
The connecting rod 7 and the like constitute a spray direction changing mechanism 16.

When the base 5 moves upward from the lower limit position shown by the solid line in FIG. 1, the piston rod 14b is in the most extended state outside the cylinder 14a as shown in FIG. It is said to be in a posture facing diagonally upward.

When the base 5 is displaced upward to the upper limit position shown by the dashed line in FIG. The supply/discharge direction is switched.

As a result, the piston rod 14b, which had been in the most extended state to the outside of the cylinder 14a, is moved to the outside of the cylinder 14a.
a, and the plate body 15 is displaced upward together with the piston rod 14b.

At this time, due to the upward displacement of the connecting rod 12, the link 10
The other end is rotated clockwise, and the rotating arm 9 is also rotated in the same direction.

Therefore, the connecting rod 7 and the connecting rod 12 are connected to the point A shown in FIG.
The spray guns 4a and 4b, which were rotated around , and were facing diagonally upward, are switched to a position facing diagonally downward, as shown by the two-dot chain line in FIG.

The spray gun 4a continues during this period of changing the spray direction.

4b is in operation, and the spray guns 4a and 4b are rotated about one point, so that the object 3 can be completely coated without leaving any unpainted parts on the upper end of the object 3.

Similarly, when the base 5 reaches the lower limit of movement indicated by the solid line in FIG. Spray gun 4 with rotational displacement
The postures of a and 4b are switched from a diagonally downward posture shown by a chain three-dot line in FIG. 1 to a diagonally upward posture.

In this case as well, since the spray guns 4a and 4b are rotated around one point, the object 3 can be completely coated without leaving any unpainted material between the lower ends of the object 3.

In this way, the coating apparatus 1 configured as described above can extremely easily change the spraying direction of the spray guns 4a, 4b between the upper and lower movement limit positions of the base 5 by operating the spray direction conversion mechanism 16. .

In addition, since the spray guns 4a and 4b are configured to point at the fixed point A regardless of their attitude angles, the spray locations will not shift when changing the spray direction.

In addition, in the above description, the object 3 to be coated is sprayed with the spray guns 4a, 4.
Since the stroke of the base 5 and the painting width of the object 3 were approximately the same, since the stroke of the base 5 was positioned at point A, which is the center of rotation of the object 3,
By moving it further away, it is possible to obtain a coating width that is greater than the stroke of base 5.

Furthermore, in the above embodiments, the reciprocator 6 is not limited to a chain type, but may be of any other type, such as a belt type.

Further, in the above embodiment, the number of spray guns in the coating machine 5 is not limited to two, but may be one, or three or more.

Further, in the above embodiment, the spray gun 4a.

The spray direction of 4b is not limited to the upper limit position or the lower limit position, but can also be changed during reciprocating operation.

Further, the spraying directions of the spray guns 4a and 4b are not limited to the vertical direction, but may be changed to the left and right directions, for example.

As described above, the painting apparatus of the present invention includes a base on which a spray gun is provided, a reciprocating drive mechanism that reciprocates the base over a predetermined range, and a reciprocating drive mechanism that is provided on the base and that arbitrarily changes the spray direction of the spray gun. Since it is composed of an actuator and a support member that is provided on the base and rotatably supports the spray gun on the opposite side of the actuator, it is similar to conventional painting equipment in which the attitude of the spray gun is fixed. Because there is a one-to-one correspondence between the painting width and the base stroke, there is no need to change the base stroke every time you change the painting width, and you can adjust the spray gun while keeping the base stroke fixed. The coating width can be expanded or reduced very easily just by changing the posture.Furthermore, it is possible to reliably prevent unpainted areas at the folding points of the base, which occur with conventional coating equipment, and the actuator When activated, the spraying direction of the spray gun, which is rotatably supported by the support member, can be changed arbitrarily regardless of the stroke position of the spray gun. Furthermore, if a piston-cylinder mechanism is used as the actuator, the spray direction can be easily changed by adjusting the pressure of the working air and changing the stroke of the piston.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of an embodiment of the coating apparatus according to the present invention, and FIG. 2 is a perspective view of the main parts thereof. 1...Painting equipment, 4 at 4 b...
・Spray gun, 5...Base, 6...
- Reciprocator, 16...Spray direction changing mechanism.

Claims (1)

[Scope of utility model registration request] A base on which a spray gun is mounted, a reciprocating drive mechanism for reciprocating the base over a predetermined range, an actuator provided on the base for arbitrarily changing the spraying direction of the spray gun, and the actuator provided on the base. and a support member rotatably supporting the spray gun on the opposite side.