JPS5987063A - Automatic coater - Google Patents

Abstract

PURPOSE:To eliminate the plugging of a nozzle for continuing a coating work without intermission, by automatically moving a spray gun toward a surface to be coated, and detecting the plugging of the nozzle in the middle of coating. CONSTITUTION:A spray gun 25 is attached to a finger part 24 movable back and forth, right and left and up and down, and a rotary member 34 is inserted into an intermediate position between the nozzle openings 28a and 34a of said gun 25. In addition, a sensor 33 for detecting the plugging of said nozzle opening 34a is provided in the middle part of a supply conduit 31 leading to the spray gun 25. Hence, the spray gun 25 is automatically moved toward a surface to be coated, and the plugging of the nozzle opening is automatically detected, so as to clarify said nozzle opening. Consequently, the improvement in productivity and workability is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic mold coating device 1ffl that automatically sprays a mold coating agent onto the surface of a mold.

Traditionally, the spraying process for coating molds has been done manually by workers, but since the coating process uses organic solvents, it can get very dirty, forcing workers to work in harsh environments. There was a problem.

For this reason, it is desired to have self-draining power, but it is necessary to process a wide variety of molds, and there are problems such as mold coating agent easily clogging the nozzle and automatic cleaning of this clogging is difficult. Ta.

The present invention was developed in view of these problems, and the present invention automatically moves the spray gun to the surface to be coated, and if the nozzle becomes clogged during the coating process,
To provide an automatic mold coating device that can automatically detect clogging of a nozzle, eliminate the clogging of the nozzle based on the detection signal, and continue mold coating work.

Below, explanation will be given based on the structure 7/Example of genuine leather IIη. (]) is a gate-shaped frame consisting of four pillars erected on the top of the foundation at predetermined intervals on the left and right after n11, and between the leftmost right pillars of the gate 1q1 frame (1), Insert the guide screw (2) and guide pin (3) while maintaining a specified interval in the front-back direction.
) are mounted on each slide frame (4).
are screwed together so that they can move freely left and right, and are inserted and inserted so that they can slide freely.

Further, above the guide screw (2) and guide pin (3), a guide screw (5) and a guide pin (6) are arranged in the front-rear direction, crossing these guide screws (2) and guide pins (3). The guide screws (
5] and the guide pin (6) are attached to the slide frame (4LI
: J with both ends supported on support members (7) fixed to the pane,
At the same time, the slide frame (8) is attached to the guide screw (5) and the guide pin [6] after j'T and tX'.

It is movable (g) and is slidably inserted.

(9) is a servo motor attached to the upper outer surface 110 of the gate-shaped frame (1), and a sprocket wheel (10) is fitted onto the motor shaft (9F-). 10) is -ψ of guide screw (2)
(A chain (2) is looped between the sprocket wheel [11] fitted to the servo
When the motor (9) operates, the slide frame (4) passes through the sprocket wheels (10), (1,1) and the chain (12) to the guide screw (2) and guide pin (
? ) along the slide frame (4) by a distance stored in advance in a control device (not shown).
Lr servo motor, its motor 4I (13a)
A sprocket wheel (14) is fitted on the sprocket, and a chain (16) is hooked up to the sprocket and the rear wheel (15). , when the servo motor (13) operates, the slide frame [8] will move the sprocket wheel [1].
4], (15) and chain C2G) + through "C guide screw (5), guide pin (6), D mark m1, in a perpendicular direction to the slide frame (4) in advance, 1.
The distance that is memorized by the person will be spiraled, 1 piece, and force transferred. [17] is a servo motor attached downward to the upper end surface of the slide frame (8), and the motor shaft is shown in the figure and is connected to the arm support part ( 18) are connected, and the servo
When the motor (17) is activated, the arm support (IS) is rotated horizontally by the required number of revolutions stored in the control device (ii).
, 1 can be rotated.

Further, a first arm (19) is rotatably supported on the tip of the adjustment arm support part (18), and a second arm (20) is attached to the tip of the first arm (19). is rotatably supported, and servo motors (2'i) (22) are respectively attached to the base end and distal end of the first arm (19), and the second arm (19) is rotatably supported by a shaft. 20) past 9
There are several servo motors (23) in the complete part, and some fingers [24] are also attached. The servo
When the motor (21) operates, the 17th-8C19)
Also, when the servo motor (22) operates, %”x<
The two arms (20) are each rotated vertically by the required number of rotations stored in the control bag, using each axis as a fulcrum.

Further, when the servo motor (23) is operated, the finger part (24) is provided to be rotated in the vertical plane by the required number of rotations stored in the control device, using the shaft as a fulcrum. . Further, a spray gun (25) is attached to a support bracket C at the tip of the finger part (24).
26) A nozzle (28) with all nozzle holes (28a) is provided at the tip of the cotton spray gun (25), which is adjustable and supported by a pin [27] via 'e. (29) is the air supply port (3) of the spray gun (25).
A flexible conduit for supplying compressed air connected to
It is connected to a compressed air supply source (pA not shown) via an on-off valve (not shown), and by supplying compressed air, the spindle (25a) is actuated, and the nozzle hole (28
Coating agent supply port (32) described below as a) made by bjll.
・Open the JJ valve (14 not shown) and connect the mold coating agent supply port (32).
The coating mold 7'Ii can be supplied from the nozzle hole (28a). (3]) is a spray gun (25)
A flexible tube for supplying a coating agent connected to the coating agent supply port (32) is connected to the pump through a tank (not shown) for storing the coating agent at the other end. and the conduit (
A detection sensor (33) is installed in the middle of C37-), which detects whether the blowing agent is leaking or has stopped using the ultrasonic waves generated when the molding agent is flowing through the conductor. It is now possible to do so. In addition, in the middle part of the nozzle hole (28a) in the Inn spray gun 25),
The nozzle hole (34) has a smaller diameter than the diameter of the art nozzle hole (28a).
A spherical rotating member (34) equipped with a nozzle hole (
28F-) (348>'s center '!II line is substantially coincident with the lever rotatably recessed, -95M is fixedly connected to the rotating member (34), and the other end is protruded outward. [3
5] is turned 180 degrees, the nozzle hole (34a) of the rotating member (34) is turned 180 degrees in the opposite direction, and foreign matter such as dust or dirt stuck in the nozzle hole (34a) is removed from the flexible Along with the spraying of the mold coating agent supplied from the 4-pipe [31], it is blown out downward from the nozzle (28).

Remove foreign objects such as dirt from the nozzle hole (34) of the rotating part +J (34).
a) It's getting more and more difficult. (3G) is a rotary drive motor installed in the nozzle #1 sweeping station, and the rotary drive motor (36) is attached to the column of the gate-shaped frame (1) via a support bracket (37), and the compressed air The rotating shaft (36a) has two hook-shaped pawl members (38) protruding in parallel to facilitate the mold coating operation. During,
If foreign matter such as dust or dirt gets stuck in the nozzle hole (34a),
The mold coating device constructed as described above moves to the position of the nozzle cleaning station via a trajectory previously stored in the control device, and the lever (35) is inserted into the middle of the pawl member (38). The drive motor (36) operates, rotates the rotating member (34) 180 degrees, and sprays the coating agent supplied from the flexible conduit (31) to remove debris that has clogged the nozzle hole (34a). After blowing out foreign matter such as below the nozzle (28), the drive motor (36) operates in reverse and the nozzle hole (34a
) direction back to its original position, and the coating device is moved back to its original position by 1δ. /J is now possible.

Further, below and on the side of the nozzle (28) in the spray gun [25], a skirt member (39) is vertically cast with a constant spread angle, and the nozzle hole (28a)
34a) The mold coating agent is sprayed out in a circular pattern within a predetermined range so as to be sprayed within a predetermined range. Furthermore, (40)
is a defense L with a mountain-like monk mask on the top surface: y″″c
be.

Next, the operation of the main +lJJ will be explained with reference to the flowcharts of FIGS. 4 and 5. The coating agent is stored in the tank, the pump for supplying the coating agent is activated, and a program in which a series of operation Q sequences is stored is loaded into the control device as described above (1). Kiji Isol
When you press the button, the servo motors (9) (13) (1
7) (21) (22) (23) are respectively created by 47
σ1 and slide - n - frame (4) (8) to the left.
The support arm (18), the arm (19), (20), and a part of the finger (24) are each rotated by a predetermined number of rotations in a vertical plane in a downward direction. Then, the spray gun (25
) '/Move to the predetermined test position (work starting point position) and perform a test blow. At this time, when an ultrasonic stop signal is generated from the detection sensor (33) and it is detected that the nozzle hole (34a) is clogged, the ultrasonic stop signal is sent to the control device n, and the coating device , move to the nozzle cleaning stay 992nd position ftt and perform the nozzle cleaning work based on the flowchart shown in FIG. That is, after the control device memorizes and confirms the work start position 1d, each servo motor (9) (13) (17) (21) (22) (
23) is activated, and the spray gun (25) of the mold coating device is activated.
to the nozzle cleaning station position, and press the lever (
35) into the middle of the pawl member (38), the rotation l
The drive motor (36) operates and the rotating member (34) rotates at 18
The nozzle hole (34a) is rotated by 0 degrees to face in the opposite direction, and the nozzle hole (342,) of the rotary member (34) is blocked by the injection of the coating agent supplied through the conduit (31). The foreign matter is blown out downward from the nozzle (28). When cleaning the nozzle hole (34a), the rotary drive motor (36) operates in reverse to rotate the rotary member (34) at 180 pi.
While turning the nozzle hole (34a) back to its original direction,
Each servo motor (9) (13) (17) (21)
(22) (23) is activated, the spray gun [25] of the mold coating device is returned to the pre-stored starting point position, and mold coating work is started according to the pre-stored predetermined procedure.

In this way, the mold coating operation starts, and the surface of the convex mold (40) is coated with the coating agent sprayed from the nozzle holes (28a) (34a). 34
a> is clogged, a stop signal from the detection sensor (33) causes the supply of the mold coating agent to stop, and the inspection mark sensor (33)
Upon receiving a stop signal from the nozzle, the nozzle cleaning operation described above is performed again. When the cleaning operation of the nozzle is completed, the spray gun (25) of the mold coating device returns to the point iit where mold coating was interrupted, and the mold coating operation is continued. In this way, when the mold coating operation for one mold (40) is completed, the mold coating device returns to the starting position again, and the same operation is performed continuously.

Further, when the signal indicating the end of the work on day -1 is received, the mold coating work, the 7tt cleaning work of the nozzle, and the stop preparation work such as stopping the mold coating agent supply pump are stopped.

As is clear from the above description, according to the present invention,
It is possible to completely automate the coating process that used to be carried out in a bad environment, and it is also possible to automatically detect and clean clogged nozzle holes, which contributes to improved TtM performance and reduces the worker's burden. It has a significant effect on this type of industry, such as ensuring safety.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a side view of Fig. 1, and Fig. 3 is a front view showing an embodiment of the present invention. ((1) Partially cutaway enlarged view showing a state in which the mold coating device (spray 1 of l) - gun has moved to the nozzle filter station position 1it and the lever of the rotating member and the pawl member of the rotary drive motor are engaged, FIG. 4 is a flowchart of the mold coating device according to the present invention, and FIG. 5 is a sub-flowchart of the nozzle 7) 1f cleaning operation. (24): Part of the finger (25) Varnish spray gun (28&) (3'4a): Nozzle hole (33): Detection sensor (34): Rotating member patent applicant Shinto Kogyo Co., Ltd. 舅λ 9+Fig.0 脣Figure 2 - Ta 4 - ÷ 5 Figure

Claims (1)

[Claims] 1jU - At the rear, a spray gun is attached to a part of the finger that can move left/right, and up/down, and a nozzle hole with a diameter smaller than the diameter of the nozzle hole is provided in the middle part of the nozzle hole of the spray gun. a rotating member rotatably inserted therein, and a detection sensor for detecting clogging of the small-diameter nozzle hole is provided in the middle of the mold coating agent supply conduit of the spray gun, and a paper mold of the spray gun; The automatic mold coating apparatus is characterized in that a rotating machine for rotating the rotating member is provided within a possible range.