JPS58152983A - Control valve for multiple fluid mixing - Google Patents

Abstract

PURPOSE:To make it possible to mount each valve for back-flow prevention, flow rate adjustment and flow passage changeover for a multiple fluid on a handy type mixed solution discharge device, toyether with a non-driving type mixing device, by making said valves to be arranged within one vessel body, in a compact form. CONSTITUTION:A vessel body 1 is provided with feed inlets 2, 2 on the both side under surface, discharge inlets 3, 3 on the both side end surfaces, and a connecting inlet 4 for connecting a mixing device on the central upper surface, and the connecting inlet 4 is communicated via flow rate adjusting orifices 5, 5 to each fluid passage communicating the feed inlet 2 to the discharge inlet 3. On the interior of a hose connecting pipe 8 a check valve 6 is arranged, and on each discharge outlet 3, each stock valve 9 is mounted. Each set of the feed inlet 2, orifice 5, and discharge outlet 3 forms a T-shaped fluid passage, in which a three-way changeover type selector valve 7 is arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control valve for mixing two-component paints and adhesives, or multi-component mixtures used when mixing JC resin, foaming agent, and Kujo liquid. A multi-liquid mixing system used in a mixing and dispensing system that performs mixing of multiple liquids before the mixed liquid dispensing device and immediately discharges the mixed liquid from the dispensing device without passing through various piping or mains after heating. This invention relates to a mixing control valve.

When mixing multiple liquids as described above using a mixing tank, the piping from the mixing tank to the dispensing device becomes long. If it is a large item, the piping such as a hose will be long. However, when the multiple liquids to be mixed are a base agent and a curing agent, and the mixed liquid starts curing, it is preferable that the piping for the mixed liquid is as short as possible.
From this point of view, in recent years, a very compact non-drive type mixing device has been proposed, as seen in Japanese Patent Publication No. 54-27985. To explain the nine pieces shown in the above publication, between two end plates each having an inlet and an outlet, there are several flow grooves of appropriate length provided on each end plate. Intermediate plates are interposed in which several through holes of appropriate length are drilled concentrically to communicate with each other alternately, and these are connected in a fallow manner to form a zigzag-shaped flow path between both end plates. The liquid or fluid that is pumped from the inlet into the zigzag-shaped flow path passes through the zigzag-shaped flow path and is mixed by repeating subdivision and merging. Since it does not require any parts, it has many advantages such as no failures and no vibrations, and especially the advantage of miniaturization. Therefore, if such a non-drive type mixing device is used, even if the dispensing device is hand-held, it is possible to attach the mixing device to the dispensing device and minimize the flow path of the mixed liquid. . However, in practice there were the following limitations. That is, in a non-driven type mixing device, since the pressure applied to the multiple liquids is used for mixing, if the pressures of the multiple liquids are not equal, there is a risk that one liquid will flow back into the other. Furthermore, in order to maintain the mixing ratio of multiple liquids at a set ratio, the flow rates must be controlled for each. Moreover, in order to stabilize various points such as humidity, temperature, and pressure of each liquid in the flow path from each multi-liquid tank to the mixing device, a switching valve can be provided in the front stage of the mixing device to allow the flow to flow back to the tank. It is preferable to leave it as is. Therefore, control valves such as check valves, flow rate 11! It was not possible to attach it to a hand-held dispensing device with a mold mixing device.

However, if the mixing device and the control valve are separated by piping, the control valve will be of no use even if there is a problem with the hidden piping, and for this reason, non-driven mixing Even when a device is used, the mixing device and the control valve are separated from the discharge device, and the mixing device and the discharge device are separated from each other.
The actual situation was that they were connected by piping such as

The present invention has been developed in view of these points, and its purpose is to provide an extremely compact design that has functions such as backflow prevention, flow rate 11!1, and flow path switching for multiple liquids to be mixed. The present invention provides a multi-liquid mixing control valve that can be attached to a hand-held mixed liquid discharging device as well as a non-driven mixing device.

In the center of the body, there is a connection port for connecting the mixer that communicates with the six inlets through an orifice, and each T-shaped flow path is equipped with a check valve and connects the inlet, orifice, and discharge port. It has a configuration in which a switching valve is installed in which the inlet, orifice, and outlet are each a boat, and a check valve, an orifice for flow rate adjustment, and a switching valve are provided for each liquid phase in one vessel. ] It is characterized by its compact size, and will be described in detail below based on the illustrated embodiment.
In the figure, (1) #'i is a rectangular container with a width of about 100 gg, and there are inlet ports 12) on both sides of the upper surface, respectively.
It has a discharge port fil f3+ on each side end surface, and a connection port fil f3+ on the center top surface for connecting the mixing device, and has a connection port fil f3+ on each side end surface, and a connection port fil f3+ on the center top surface for connecting the mixing device. The connection ports (4) communicate with each other through orifices fi+ +61 for flow rate**. (8) is a main connection pipe attached to each inlet port, and a spring is installed inside it. 021 and a valve body a field energized by this spring 0 smell, a check valve (6) is provided, and a stop pulp (9) is attached to each discharge port (1). Each set of the inlet orifice (5) and the outlet (3) forms a T-shaped flow path, and the inlet (2) is located at the intersection of each flow path.
), an orifice (6), and a spherical valve body 04) having a T-shaped flow path of a three-position switching valve (7) in which the discharge port (1) is a boat. - is 0 link, 0
(This is a NJ valve. In addition, the valves for each liquid phase are symmetrically arranged and formed. In this control valve, the orifice (5) (6)
Each tfLii flows in through the check valve (@) of the 0 inlet port (2), which has an opening diameter that corresponds to the flow rate ratio of the multi-liquid.
, through the switching valve (7) and the orifice (-), flow into the connection port (4)K, and reach the discharge device via the mixing device attached to the connection port (4). The normally closed connection ports provided on both sides of the upper surface of the vessel body (1) are used to clean the control valve and mixing device, and if these connection ports are included, the switching valve (7) is a 4-bot, 4-position type.

(1 is a cleaning port 1 for cleaning the inside of the connection port (4).

Figure 3 shows an example of a non-drive type mixing device that attaches 70 sheets to the connection port (4) at the 4121st point.

In the figure, the body υ is a tube with an inner diameter of about 20 m, and its interior is partitioned into several spaces in the axial direction by partition walls. The partition 11 (b) has a plurality of small-diameter through holes that are open at both end faces, and in particular, each through hole is not parallel to the axis of the disc-shaped partition mu, but the position of the opening at one end is The diameter of the part where the opening at the other end is located is larger than the diameter of the part where the opening at the other end is located, and the opening at one end is rotated around the axis of the partition wall (2) more than the opening at the other end and arranged at nine positions. This is done so that the @ axis and the axis of the through hole do not intersect in a tertiary manner. Several of these partition walls were arranged so that their faces were alternately reversed, and a shaft body (end) with a small diameter shaft at one end inserted into the central shaft hole of one of the positive wall walls, and a link-shaped λ The spacer curves are arranged alternately on the partition wall (3) to form a space around the shaft and inside the spacer, and the shaft and the pipe are arranged alternately on the partition wall (3). By filling the dark cylindrical space with the inner peripheral surface with particles such as EK beads, a three-dimensional linear flow path is formed. The mixed liquid of the two liquids, which is attached to the holder and flows through the connection port (4), passes through the through hole of the first stage partition wall (2) and flows into the space. The flow is swirling from the axial direction, and after passing through the three-dimensional network channel, fragmentation and merging are repeated many times.
It passes through the through hole (c) of the second stage partition wall and reaches the space t241 surrounded by the spacer (b). At this time, the mixed liquid flows into the space (goods) from each through hole (c) as a swirling flow directed in the centripetal direction due to the direction of the axis of the through hole (c), so that mixing is promoted, and then, The liquid passes through the three-dimensional network flow path in the space A again and reaches an outlet connected to a discharge device such as a spray gun.

In the above embodiment, the control valve for mixing two liquids is shown.
In a hermitage that mixes multiple liquids such as 3 liquids and 4 liquids, it may be configured as follows. That is, the central connection port -4
) to form orifices (6) radially according to the number of subtractions, and a switching valve (7) is installed at each pair of inlet port (2) and discharge port (3) provided on the outer 11i1 part of the vessel +1). It communicates through the In this case, the inlet (2) is connected to the vessel (1).
A container body (1) with a connecting port (4) opening the operation part of the switching valve (7) on the lower surface of the container body (1) and the outlet port (3) on the outer periphery of the container body (1).
It will fit better if the connection port (instead of the top) is placed on the top surface and the planar shape of the container body (1) is disc-like or polygonal.
9) was installed, but the presence of the switching valve (7) makes it unnecessary to separately install the stow valve (9).

Hereinafter, as shown in E, the present invention prevents backflow for large amounts of liquid, and the flow rate is 11 m! 1. Multiple valves for flow path switching are arranged in a single container, making it extremely compact, so it can be used in conjunction with a non-driven mixing device. ? It is also possible to store the mold in the discharge device, which allows for a stable TFF.
ll and can also be operated at hand.

[Brief explanation of the drawing]

Fig. 1 al (b) is a front view and a side view of one embodiment of the present invention, Fig. 2 is a half-section view of the same as above, and Fig. 3 is a 70-
FIG. 4 is a cross-sectional view of an example of a mixing device connected to the above connection port, where (1) is the vessel body, (2) is the inlet port, and t.
aUma discharge port, (4) is the connection port, (6) is the orifice,
(6) shows a check valve, and (7) shows a switching valve. Agent Patent Attorney Ishi 1) Long Figure 1 (0) 7 (b) Figure 2 Figure 4

Claims (1)

[Claims] (1) A connection port for connecting the mixer is provided in the center of the container, which has a pair of inlet ports and outlet ports corresponding to each liquid on the outside, and communicates with each inlet port through an orifice. , characterized in that each T-shaped flow path connecting the inlet, the orifice, and the outlet each having a check valve therein is provided with a switching valve that uses the inlet, the orifice, and the outlet as boats, respectively. Control valve for mixing multiple liquids