JP2500551Y2 - Two-liquid mixing coating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is, for example, in a two-liquid mixing and coating apparatus that mixes and coats an adhesive consisting of two liquids of a main agent and a curing agent, and mixes the two liquids. And a compact coating device.

(Prior Art) Conventionally, the present applicant has disclosed a mixer as shown in Japanese Patent Application No. 63-136545. This mixer is installed in a spray gun, etc., so that it can be used immediately after mixing two-component paints and adhesives.
It was developed as a device for efficiently mixing liquids.

According to this device, a rectifying chip having two through-holes and a mixing chip having two circulation grooves on the front and back sides are alternately laminated in a mixer path, and two rectifying chips are formed in the through-holes and the circulation grooves. Attempting to mix the two liquids by guiding the liquids.

(Problems to be solved by the invention) However, in the case of the above-mentioned device, since there is one mixer path in which the mixing chips and the rectifying chips are stacked and arranged, the shape is elongated in one direction, and for example, an automatic coating device or robot. When it is attached to an arm or the like, there are problems that the coating area is limited due to space restrictions, and that the moment load reduces the response of the robot and the like and affects the coating quality.

(Means for Solving the Problems) In order to solve the above problems, the present invention relates to an apparatus body, two supply paths for supplying different liquids, a mixer path for mixing these two liquids, and a discharge of the mixed solution. A two-liquid mixed coating device comprising a discharge passage for opening, a valve for opening and closing the discharge passage, and a piston for driving the valve all together.
It is characterized in that the mixer path is a meandering path that is folded back inside the apparatus main body, and the forward path and the return path of the mixer path are arranged in parallel with the piston.

Further, when the apparatus main body was cut along a plane perpendicular to the piston, the forward path, the return path of the mixer path, and the piston were arranged at each vertex of a triangle.

(Operation) Since the mixer path is a meandering path that folds back inside the apparatus body, the length of the apparatus is small. Further, since the forward path and the backward path of the mixer path are arranged in parallel with the piston, the mixer path and the piston can be integrated and assembled in the main body of the apparatus, and the apparatus becomes small and lightweight.

Further, since the forward and backward paths of the mixer path and the piston are arranged at the respective apexes of the triangle, the apparatus becomes even smaller and lighter.

(Embodiment) An embodiment of the two-liquid mixing coating device of the present invention will be described with reference to the attached drawings.

FIG. 1 is a longitudinal sectional view taken along a center line along the longitudinal direction of the present apparatus, and FIGS. 2, 4, and 6 are respectively FIG.
II-II line, IV-IV line, VI-VI line sectional view, FIG. 3 is I of FIG.
II-III line sectional drawing, FIG. 5 is the VV line sectional drawing of FIG.

The two-liquid mixing device of the present invention is configured as a device for mixing and applying a two-liquid mixing type adhesive composed of a main agent and a curing agent, and two supply paths 15 and 16 for supplying different liquids to the apparatus main body 1.
, Mixer paths 10 and 11 for mixing these two liquids, a discharge communication path 27 as a discharge path for discharging the mixed solution, a check valve mechanism 6 as a valve for opening and closing the discharge communication path 27, and this check Piston 8 that drives valve mechanism 6
And a mixer path 10, 11
Is a meandering passage that folds back inside the main body 1, and mixer passages 10, 11
The forward path (corresponding to code 10) and the return path (corresponding to code 11) of
It is arranged parallel to the piston 8 (arranged parallel to the hollow chamber 7 in which the piston 8 slides). The configuration of the device will be described in detail below.

As shown in FIG. 1, the apparatus main body 1 integrally includes a manifold 2 as a front unit, a body 3 as a middle unit, a cylinder flange 4 as a rear unit, and a cylinder 5 along the longitudinal direction. A check valve mechanism 6 is provided at the center of the width direction at the joint between the manifold 2 and the body 3, and a storage chamber 12 is provided on the manifold 2 side where the check valve mechanism 6 is provided and a hollow chamber is provided on the body 3 side. 7 is drilled.

On the other hand, a piston 8 is slidably provided in the cylinder 5 via a return spring 9, and a rod portion 8a of the piston 8 is inserted into the cylinder flange 4 to be guided and is also introduced into the hollow chamber 7. It is extended.

The body 3 has a hollow chamber 7 as shown in FIGS.
A pair of left and right mixer paths (front and back in Figure 1)
10,11 are provided. Ie this mixer path 10,11
Is parallel to the hollow chamber 7 and penetrates the body 3 in the longitudinal direction. A communication passage 13 on the cylinder flange 4 side, which will be described later,
The two are in communication with each other.

Thus, when the apparatus main body 1 is cut along a plane perpendicular to the piston 8, the forward and backward paths of the mixer paths 10 and 11 and the piston 8 (the hollow chamber 7 for the piston 8 to slide) are
It is placed at each vertex of the triangle. Therefore, the two-liquid mixing coating device becomes smaller.

The manifold 2 is provided with a pair of supply paths 15 and 16 in the vertical direction as shown in FIG. This supply channel 15,16
One side is for supplying the main agent and the other side is for supplying the curing agent, and the upper ends of the respective sides are open to the outside as shown in FIG. Further, check valves 17 and 17 for preventing backflow of the supplied liquid are provided in the respective supply paths 15 and 16, and the check valves 17 are configured by urging steel balls with springs. .

Below the supply passages 15 and 16, a communication passage 18 that connects them is provided.
Is provided. A large-diameter recess 19 communicating with the mixer passage 10 on the one side is provided in the middle of the communication passage 18.

On the other hand, a small-diameter recess 20 communicating with the mixer passage 11 is provided at a position corresponding to the mixer passage 11 on the other side, and the oblique flow passage 21 extending obliquely upward from the small-diameter recess 20 is the same as described above. The check valve mechanism 6 (the first
Figure).

A through hole 23 into which the discharge nozzle 22 shown in FIG. 1 is inserted is provided in the middle of the large-diameter recess 19 and the small-diameter recess 20.
The through hole 23 communicates with the discharge communication passage 27 on the body 3 side described below.

In the body 3, as described above, the two mixer paths 10, 11
Are provided so as to pass through in the longitudinal direction, and mixing chips to be described later are arranged in a laminated form therein, and a discharge communication passage 27 is extended from the hollow chamber 7 parallel to this. The discharge communication path 27 is formed by a vertical path communicating with the lower part of the hollow chamber 7 near the check valve mechanism 6 and a horizontal path communicating with the discharge nozzle 23.

The cylinder flange 4 is provided with the communication passage 13 communicating with both mixer passages 10 and 11 as shown in FIG. 6 as described above. The cylinder 5 is screwed to the rear end side through the O-ring 28 shown in FIG. The piston 8 provided in the cylinder 5 has a hollow core, and can be reciprocated by the return air 9 and the pressurized air supplied from the air hole 29 of the cylinder 5. When the return spring 9 is compressed and the piston 8 moves, the tip of the rod portion 8a pushes the steel ball 30 of the check valve mechanism 6. In this check valve mechanism 6, the steel ball 30 is urged by a spring 31 so that the plain block the communication between the storage chamber 12 and the hollow chamber 7.

The manifold 2, the body 3 and the cylinder flange 4 thus constructed are composed of a plurality of bolts 32, 3 as shown in FIG.
It can be stopped with 2….

Next, the mixing chips installed in the mixer paths 10 and 11 will be described with reference to FIGS. 7 and 8.

The mixing tip comprises a rectifying tip 34 shown in FIG. 7 and a shunting tip 35 shown in FIG. 8. The rectifying tip 34 has a circular through hole 36 at the center of the disc-shaped tip.

On the other hand, the diversion chip 35 has two parallel grooves 37, 37, 38, 38 which are parallel to each other on the front and back surfaces of the disk-shaped chip, and the parallel grooves 37, 37 on the front surface
The parallel grooves 38, 38 on the back surface and the back surface are provided with a crossing angle, and a through hole 39 for communicating the parallel grooves 37, 38 on the front surface and the back surface is provided on one end side of each groove. And mixer road 1
In 0 and 11, the diversion chips 35 and the rectifying chips 34 are alternately arranged in a laminated shape.

The outline of the operation of the mixing coating device configured as described above is as follows.
It is as follows.

In FIG. 10, the base material and the curing agent, which are relatively viscous, are supplied from the supply paths 15 and 16. The two liquids that have entered the communication passage 18 via the check valves 17 flow into the one mixer passage 10 from the large-diameter recess 19.

As described above, the diversion chips 35 and the rectifying chips 34 are alternately arranged in the mixer path 10, and the two liquids originally in the state of (A) of FIG. 9 penetrate the chips 34, 35. Hole 3
The mixing property is gradually increased while passing through 6,39. (Fig. A → E) When the end of the mixer passage 10 is reached, it enters the mixer passage 11 on the opposite side through the communication passage 13 of the cylinder flange 4, and the mixer chip in the mixer passage 11 is now turned in the opposite direction. And the mixing property is further enhanced.

At the end of the mixer passage 11, the two liquids are well mixed,
The liquid mixture flows diagonally from the small diameter recess 20 of the manifold 2.
It is stored in the storage room 12 through 21.

When applying the adhesive, the piston 8 shown in FIG. 1 is actuated by air pressure to push the steel ball 30 of the check valve mechanism 6 at the tip of the rod portion 8a to open the valve. Therefore, the mixed liquid in the storage chamber 12 passes through the discharge communication passage 27, and then the discharge nozzle.
It is discharged from 22. Needless to say, the driving of the piston 8 is not limited to air pressure. Also, in the embodiment, 2
Mixer paths 10 and 11 are used, but the number is increased to 4 and 6.
It is also possible to use an even number of articles such as articles.

(Effect of the Invention) The present invention has the following effects due to the above configuration.

In the two-liquid mixing / applying device of the first aspect, since the mixer passage is a meandering passage that is folded back inside the device body, the length of the device can be reduced and the device can be downsized. Further, since the forward path and the backward path of the mixer path are arranged parallel to the piston, the mixer path and the piston can be integrated and assembled in the main body of the apparatus, and the apparatus can be made small and lightweight.

Therefore, since the two-liquid mixing coating device is small, it can be brought close to the coating surface, and even when it is mounted on the tip of the automatic coating device or the robot arm for use, the mounting space is small.

Further, since the two-liquid mixing / applying device is lightweight, the load acting on the robot arm or the like is small, and the operation of the robot arm or the like can be smoothly performed, so that the coating quality is improved.

In the two-liquid mixing coating apparatus of claim 2, when the apparatus main body is cut along a plane perpendicular to the piston, the forward path, the backward path of the mixer path and the piston are arranged at each vertex of the triangle, so that the apparatus is further downsized. In addition, the weight can be reduced, the installation space for the tip of the automatic coating device or the robot arm can be further reduced, and the operation of the robot arm or the like can be made smoother.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view taken along the center line along the longitudinal direction of the present coating apparatus, and FIGS. 2, 4, and 6 are II-II line and IV-IV line of FIG. 1, respectively. , VI-VI line sectional view, FIG. 3 is a III-III line sectional view of FIG. 2, FIG. 5 is a VV line sectional view of FIG. 4, FIG. 7 and FIG. , FIG. 7 is a rectifying chip, FIG. 8 is a diversion chip, and FIG. 9 is an operation diagram showing a mixed state of two liquids by a mixer chip, and FIG.
It is a typical explanatory view explaining an operation of a liquid mixing application device. In the figure, 1 is the apparatus main body, 2 is a manifold as a front unit, 3 is a body as a middle unit, and 4,5
Is a cylinder flange as a rear unit, a cylinder,
6 is a valve (check valve mechanism), 7 is a hollow chamber, 8 is a piston, 10 and 11 are mixer passages, 15 and 16 are supply passages, 22 is a discharge nozzle, 27 is a discharge passage (discharge communication passage), and 34 is a rectifier. Chip, 35 is a diversion chip.

Claims (2)

(57) [Scope of utility model registration request] 1. An apparatus main body, two supply paths for supplying different liquids, a mixer path for mixing these two solutions, a discharge path for discharging the mixed solution, and a valve for opening and closing the discharge path. A two-liquid mixing and coating apparatus including a piston for driving the valve, wherein the mixer passage is a meandering passage that is folded back in the apparatus body, and the forward and return passages of the mixer passage are A two-liquid mixing coating device, which is arranged parallel to the piston. 2. The forward path, the backward path, and the piston of the mixer path are arranged at respective apexes of a triangle when the apparatus body is cut along a plane perpendicular to the piston. Two-liquid mixing coating device.