JPH02152532A - Liquid mixing device - Google Patents

Abstract

PURPOSE:To obtain the liquid mixing device which is suitable even in a minute flow rate or a minute capacity by adopting such a simple constitution that is provided with two liquid supply nozzles in a mixing chamber so as to confront each other and a discharge nozzle communicating to the mixing chamber. CONSTITUTION:The nozzle 3 for A-liquid and the nozzle 4 for B-liquid are disposed in the mixing chamber 2 of a hollow spherical shape of the mixing chamber 1 so as to confront each other with a small clearance 5 between, and the discharge nozzle 6 is provided in the lower part. When the A-liquid and the B-liquid are simultaneously supplied in the mixing chamber 2 with the required mixing rate, both liquids are collided at the small clearance 5 and ejected from the discharge nozzle 6 in a jet flow. The clearance 5 is adjusted according to the flow rate. By this simple constitution, a small sized and light weighted fluid mixing device suitable even in a minute flow rate or a minute capacity is obtained with low cost.

Description

Detailed Description of the Invention (Industrial Field of Application) A liquid mixing device that can be used in a relatively lightly mixed state for two-component mixed acrylic resin adhesives, hot water and liquid seasonings, etc. I will provide a.

(Prior art, its problems, and technical analysis) Conventionally, as a static mixing device that mixes only by the mechanism inside the pipe without using an external stirring rod, etc., a twisting element is installed inside the pipe, and the twisting direction is alternated from left to right. It is known that many arrays are arranged instead of .

This device mixes the liquid flowing inside by twisting it left and right by a twisting element, and has the advantage of being able to mix with a simple structure, but mixing is difficult when the flow rate is small. In the case of liquids with high viscosity, a large number of torsion elements are required, which has drawbacks such as the length of the pipe and the increase in internal volume.

When bonding electronic parts, precision equipment, etc., the amount of two-component epoxy resin adhesive, acrylic resin adhesive, etc. applied per piece is often very small, less than 0.001 cc, and hardening. Considering the time, the internal volume of the mixing device is 0.1cc.
The following are required: Currently, there is no micro-volume mixing device, so the adhesive that enters the mixing device begins to harden before being discharged. For this reason, the mixing device is replaced before it hardens, but this is very time-consuming.

(Objectives and Technical Means of the Invention) The present invention provides a liquid mixing device capable of mixing even a minute flow rate and a minute volume.

The device is a liquid mixing device in which a liquid supply nozzle is placed in a mixing chamber, with a small gap formed at the abutting portion, and a discharge nozzle that communicates with the inside of the mixing chamber is installed.

(Example 1) Refer to Fig. 1 The mixing device 1 has a mixing chamber 2 in the shape of a hollow sphere, in which a nozzle 3 for liquid A and a nozzle 4 for liquid B are arranged butt against each other with a small gap 5, and a discharge nozzle 6 is installed at the bottom. are doing. The nozzle 3.4 has a pipe shape. Insert the liquid feeding tube into nozzle 3 and nozzle 4, and simultaneously feed liquid A and liquid B into the mixing chamber 2 at the same mixing ratio.
When supplied into the mixing chamber, both liquids collide in the small gap 5, form a jet flow, flow into the mixing chamber, mix, and are discharged from the discharge nozzle 6. When the interval between the small gaps 5 is increased, no jet flow is generated and both liquids are discharged in a separated state. Select the gap according to the flow rate.

(Example 2) Referring to FIG. 2, the mixing device 11 has a nozzle 13 for liquid A and a nozzle 14 for liquid B arranged at right angles in a hollow spherical mixing chamber 12, with their tips cut off at 45 degrees and butted together. A gap 15 is formed. A discharge nozzle 16 is provided at the bottom of the mixing chamber 12. A mixing chamber 17 is similarly connected to the discharge nozzle 16, and nozzles 18 and 19 are similarly arranged. nozzle 13,
When liquid A and liquid B are supplied from 14, they are mixed in the mixing chamber 12, and are discharged from the discharge nozzle 16 into the mixing chamber 17. When liquid C is supplied from nozzle 18, liquids A, B, and C are mixed and discharged from discharge nozzle 19.

A large number of mixing devices 11 can be connected to mix various types of liquids. Suitable for mixing dyes and chemical solutions.

(Embodiment 3) Referring to FIG. 3, the mixing device 21 is provided with a plug 29 in the upper part of the mixing chamber 22 to facilitate internal air removal, processing, and cleaning. Mixing device 2
1, the nozzles 23 and 24 are connected to the pipe joint 25,
26, which are individually arranged on the same center line. Nozzle 2
A gap 27 formed by the abutting portions of nozzles 23 and 24
It can be made variable by changing the individual length of 4. Since each part of the mixing device 21 can be disassembled, cleaning becomes easy.

(Embodiment 4) Refer to FIG. 4 The mixing device 31 forms a T-shaped pipe joint 44. One end is a joint 32 for liquid A, and the other end is a joint 33 for liquid B. The internal conduits 34 and 35 are each individually connected to a lower joint 36. The mixing element 37 is provided with conduits 38 and 39 that communicate with the conduits 34 and 35, which are bent at a central portion 40 and butt and merge. A slit 41 is provided at the center of this merging portion, and electrically connected to the discharge port 42 . The mixing element 37 is connected and fixed to the pipe joint 44 with an individual nut 43.

The mixing device 31 has a mixing element 37 that can be easily attached and detached, and is easy to replace and clean.

(Example 5) Refer to Fig. 5 Example 5 describes another method of forming a gap in the mixing section, in which a nozzle 51 for liquid B is inserted with a small diameter into the open end of a nozzle 50 for liquid A. An annular gap 53 is formed. In this example, the gap can be formed small and with high precision.

(Example 6) Refer to FIG. 6 Example 6 describes another method of forming a gap in the mixing section, in which a nozzle 55 for liquid A and a nozzle 56 for liquid B are used.
Notches 57, 57', etc. are provided at the open end of each of the opening ends at equal intervals on the circumference, and are arranged in a staggered manner. You can mix A and B in the form of threads, so mix well.

You can also make small holes in a staggered pattern on a single pipe.

(Effect) 1. Since it is made up of just one part, it is small, lightweight, and inexpensive.

2. Since the volume of the mixing chamber can be made very small, mixing type adhesives do not harden within the mixing chamber, so there is almost no need to replace the mixing device.

3. It is possible to apply from large flow rates to small flow rates, and is especially applicable to minute flow rates.

4. Small size can be achieved even in the case of high viscosity fluid.

5. Multiple units can be easily connected and multiple liquids can be mixed.

6. Easy to disassemble and clean.

7. The composition structure of Example 3 and Example 4 is also simple, and multi-stage mixing can be easily performed.

[Brief explanation of the drawing]

FIG. 1 to FIG. 6 show side sectional views of Embodiment 1 to Embodiment 6, respectively.

Claims (1)

[Claims] A liquid mixing device in which two liquid supply nozzles are placed abutting each other in a hollow spherical mixing chamber, with a small gap formed at the abutting portion, and a discharge nozzle is installed that communicates with the mixing chamber.