JP2875721B2 - Liquid mixing and discharging device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid mixing and discharging apparatus, and more particularly to a mixer section for mixing and stirring a plurality of liquids at a predetermined ratio. Related to useful techniques to apply.

[0002]

2. Description of the Related Art Conventionally, there has been known an apparatus for automatically mixing at least two kinds of liquids (viscosifiers) and for dispensing a fixed amount of the liquids. For example, a two-part type adhesive in which a main agent and a curing agent are mixed and used. It is used for, for example, discharging an agent onto an adherend in an automated production line. FIG.
3 shows a typical example of such a liquid mixing and discharging apparatus 1. In the figure, what is indicated by reference numeral 2 is an apparatus main body, what is indicated by reference numeral 3 is a mixer section, and the liquid mixing and discharging apparatus 1 is configured by integrating the apparatus main body 2 and the mixer section 3. I have.

[0003] Although not particularly shown, the apparatus main body 2 has a tank in which a main agent and a curing agent are independently stored.
A heater for keeping the tank warm, a heater controller for setting and controlling the heater temperature, a pump for transporting the main agent and the curing agent in a predetermined amount to the mixer section, a pump drive controller for driving and controlling the pump, Is provided.

FIG. 14 shows the mixer section 3 on an enlarged scale. As shown in the figure, the mixer section 3 is composed of a mixer section main body 4 and a nozzle section 5, and the mixer section main body 4 is further provided with a rotor 4A for mixing and stirring the two liquids as shown in FIGS. And a mixing chamber 4B. The rotation of the rotor 4A is controlled by a motor (not shown) and a motor drive controller provided in the apparatus main body 2, and the outer periphery thereof is perpendicular to the rotation axis of the rotor 4A, as shown in FIG. That is, a plurality of fins 4a parallel to the rotation direction of the rotor 4A are provided. On the other hand, on the inner periphery of the mixing chamber 4B, a so-called baffle bar 4b projecting between the upper and lower fins 4a.
Are provided so that the flow of the liquid generated in the mixing chamber 4B due to the rotational movement of the fins 4a is obstructed to perform the mixing and stirring.

As shown in FIG. 14, the nozzle portion 5 is generally made of a thin tube so as to make it possible to discharge the details of the adherend, and a lower end of the nozzle portion 5 communicates with the mixing chamber 4B. An outlet 6 is provided. The capillary has the same inner diameter from the base end to the distal end so as not to impair the discharge performance. However, in order to further enhance the discharge performance, a high pressure is applied from the apparatus body 2 to the mixer unit 3. While injecting the liquid. That is, the liquid is forcibly sent from the mixing chamber 4 </ b> B to the nozzle unit 5 by the pressure at the time of the injection, and is discharged from the discharge port 6.

Accordingly, since high pressure is applied to the mixer unit main body 4 and the nozzle unit 5, they are generally made of metal so as to be able to withstand such high pressure. Has been made. Further, other components constituting the mixer unit 3 are also made of metal, and are firmly connected to each other by using bolts 7B, so that the liquid leaks from the joints between the components and the liquid caused by damage to the components. It is considered so that the scattering of the water does not occur.
Further, the mixer section 3 itself is also connected to the apparatus main body 2 by bolts 7C.

Further, when the apparatus main body 2 and the mixer section 3 are connected via a joint member or the like using a tube or the like, liquid leakage from the joint portion is lost due to the pressure of the liquid pumped from the pump of the apparatus main body 2. Therefore, as shown in FIG. 15, the apparatus main body 2 and the mixer section 3 are surface-connected to each other, and the liquid delivery port 2a on the apparatus main body 2 side and the liquid receiving port 3a on the mixer section 3 side are directly connected as shown in FIG. Butts are connected. The liquid flow paths 4c and 4d from the liquid receiving port 3a to the mixing chamber 4B are provided by forming through holes in the metal block of the mixer unit main body 4.

The flow paths 4c and 4d are provided in the mixing chamber 4B.
The top is open. In the case of the above-mentioned two-component type adhesive, the main agent is generally mixed with the hardener 1 in an amount several to several tens of times the amount of the hardener 1, but the main agent and the hardener flow paths 4c, 4
injection ports 4e each opening to the mixing chamber 4B
And 4f are mixing chambers 4 irrespective of the type and amount of liquid.
B is opened at a position that satisfies the same conditions as B (that is, a position on the same circumference in FIG. 15). In FIG. 15, reference numerals 2c and 2d denote flow paths of the main agent and the curing agent, respectively.

By the way, as shown in FIG. 14, the rotor 4A has a power transmission shaft 8 protruding above the mixer unit main body 4 together with multiple supporting members 4C, 4D and 4E.
, And is mechanically connected to the motor.

When it is not preferable that bubbles are contained in a mixture obtained by mixing the two liquids, especially in the case of an adhesive, in such a case, the bubbles in the mixture are reduced. A defoaming device for removal must be newly provided separately from the liquid mixing and discharging device 1. At that time, the defoaming device is provided in a flow path between the mixing chamber 4B and the nozzle unit 5.

[0011]

In a liquid mixing and discharging apparatus, in the case of two liquids, for example, in the case of an adhesive consisting of a main agent and a curing agent, a mixing chamber 4B is supplied from a pump for transporting each liquid in a fixed amount. In the operation preparation stage of the liquid mixing and discharging apparatus 1, whether or not the liquid has been injected must be measured for the actual discharge amount of each liquid transported from each pump. For the measurement, the mixer section 3 was removed from the apparatus main body 2, a cylindrical measuring base was attached to the liquid delivery port 2a of the apparatus main body 2, and the amount of discharge from the base had to be measured. Then, after weighing, in order to operate the apparatus 1, the base must be removed and the mixer unit 3 must be attached to the apparatus main body 2 again.
It was very troublesome and troublesome.

Also, since the injection pressure of the main agent is higher,
The main agent easily flows back into the flow path 4d from the hardening agent injection port 4f. Therefore, in the case of a two-part adhesive, the adhesive was solidified in the flow path 4d and was easily clogged. The clogged portion is repaired, or the liquid mixing and discharging device 1
When cleaning the unit after the operation is completed,
The nuts 7A and the bolts 7B and 7C used for the mutual connection between the components and the apparatus main body 2 and the mixer section 3 must be removed, which is inferior in maintenance.

In addition, since each component is made of metal, the adhesive and the like easily adhere to the inner wall surface of the mixing chamber 4B and the nozzle portion 5 and are easily clogged, and their cleaning properties are poor.

Further, since the rotor 4A and the motor are mechanically connected to each other via the power transmission shaft 8, the liquid is supplied to the power source especially when the liquid is a non-Newtonian fluid, and when not. In some cases, the motor was entangled with the transmission shaft 8 and transmitted from the mixing chamber 4B to the motor, causing the motor to fail. Also, if the adhesive hardens in the mixing chamber 4B, the hardening will hinder the rotation of the rotor 4A, causing an excessive load on the motor, which may damage the motor or cause a major accident. Or there was a risk of

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a liquid mixing and discharging apparatus which is excellent in decomposability and maintainability and has a safety mechanism.

[0016]

In order to achieve the above object, in a liquid mixing and discharging apparatus according to the present invention, an outer cylinder capable of introducing a plurality of liquids therein at a predetermined ratio without contacting each other. And a mixer body that supports a base end of the outer cylinder and has a plurality of liquid supply ports that open toward the inside of the outer cylinder, and the mixer body is connected to and connected to the supply port. An import section for receiving the liquid flowing into the supply port, and a pipe section made of a cylindrical body that is detachably attached to the import section with one touch and guides the liquid to the import section are provided for each liquid, and the supply amount is provided. Low liquid liquid
The body supply port is located in the rapid flow area where the liquid flowing through the outer cylinder is fast.
The liquid supply port of the liquid that is opened facing
The opening is set so as to face a slow flowing portion having a slow speed .

Further, in the liquid mixing and discharging apparatus according to the present invention,
In other words, the specified liquids do not come into contact with each other
An outer cylinder that can be introduced into the inside of the outer cylinder at a ratio and a base end of the outer cylinder are supported.
With a plurality of liquid supply ports
And a mixer body comprising:
Connects to the supply port and receives the liquid flowing to the supply port
And an import unit that is removable and
A pipe section comprising a cylindrical body for guiding the liquid to the port section;
Is provided for each liquid , a flange is protruded from a part of the base end edge of the outer cylinder, while an outer cylinder mounting part for receiving the flange is provided on the mixer body. The outer cylinder mounting portion has an opening which is substantially complementary to the flange portion and has an opening through which the flange portion can be inserted, and is provided on the back side of the outer cylinder mounting portion at the side of the insertion port. Is provided with a storage part that can store the flange part,
An outer cylinder is attached to the mixer main body by rotating the flange portion inserted from the insertion port and allowing the flange portion to come into the storage portion . Ma
In the liquid mixing and discharging apparatus according to the present invention,
Liquids in a predetermined proportion without contact with each other
An outer cylinder that can be introduced into the outer cylinder;
Having a plurality of liquid supply ports open to the front
A main body, and the mixer main body is connected to the supply port.
That accepts liquid flowing through the connection port
Section and the import section, which can be attached and detached
A pipe section consisting of a cylinder for guiding the liquid is provided for each liquid.
A detachable nozzle portion is provided at the distal end of the outer cylinder, and a female screw portion provided at the distal end portion of the outer cylinder is provided so as to protrude from a part of the base end edge of the nozzle portion. by screwing a flange portion made Te, so the nozzle portion is attached to the outer cylinder with a single touch, and the Dosoto tube, the outer
The mixing chamber in the outer cylinder, further inside the female thread of the cylinder
To the nozzle and project the fitting tube fitted into the nozzle part.
It is characterized by being provided out.

Further, in the liquid mixing and discharging apparatus according to the present invention,
In other words, the specified liquids do not come into contact with each other
An outer cylinder that can be introduced into the inside of the outer cylinder at a ratio and a base end of the outer cylinder are supported.
With a plurality of liquid supply ports
And a mixer body comprising:
Connects to the supply port and receives the liquid flowing to the supply port
And an import unit that is removable and
A pipe section comprising a cylindrical body for guiding the liquid to the port section;
Is provided for each liquid, and provided with a rotor inserted into the outer cylinder and rotatable about the center axis of the outer cylinder as a rotation axis, and having a watertight seal between the rotor and driving means for driving the rotor to rotate. A magnetic force attracting portion that is rotationally driven by the driving means and a magnetic force attracted portion provided integrally with the rotor are mutually attracted across the partition wall. Thus, the rotational driving force of the driving means is transmitted to the rotor.

In the liquid mixing and discharging apparatus of the present invention, the pipe section is detachable from the import section. However, when the pipe section is fitted to the import section, the liquid is prevented from leaking.
A sealing material may be interposed in the import unit.

[0020]

According to the liquid mixing and discharging apparatus of the present invention, the mixer body has the import section for receiving the liquid and the pipe section made of a tubular body which can be detachably attached to the import section with one touch. When measuring the actual discharge amount of each liquid transported from each pump, remove the pipe section from the import section, measure the discharge amount from that pipe section, and then import again It is only necessary to attach the pipe section to the section, and the discharge amount can be easily measured without any trouble. In addition, liquids with small supply
The liquid supply port is a rapid flow part where the liquid flowing through the outer cylinder is fast.
The liquid supply port for a large amount of liquid
It is set so that it opens to the slow slow flow part
As a result, a large amount of liquid flows into the
If a large amount of liquid flows into the outer cylinder and reaches the rapid
With that, the flow becomes very steep. And that
Due to the rapid flow, negative pressure is applied to the liquid supply port facing the rapid flow section.
Liquid, resulting in a small supply of liquid from its inlet
Is sucked out and efficiently introduced into the outer cylinder,
The supply amount of liquid is reversed from the liquid supply port of the small supply amount of liquid.
Prevent the liquid from flowing down and ensure that a small amount of liquid is supplied.
Indeed, it can flow into the outer cylinder.

A so-called bayonet-type fitting in which a flange protruding from a part of the base end edge of the outer cylinder is inserted into an outer cylinder mounting portion provided on the mixer body and rotated, so that the flange is attached to the mixer body. Since the outer cylinder is integrally attached, the attachment and detachment of the outer cylinder can be performed with one touch, which is easy.

Further, the attachment and detachment of the outer cylinder and the nozzle portion is performed by a so-called luer lock type in which a female screw portion provided on the outer cylinder is screwed with a flange portion projecting from a part of a base end edge of the nozzle portion. With this arrangement, the nozzle can be easily attached and detached with a single touch, which makes it easy. In addition, further inside the female thread of the outer cylinder
To communicate with the mixing chamber in the outer cylinder,
By protruding the fitting tube that fits into the
Communicates with the mixing chamber when the nozzle is attached to the outer cylinder
Is inserted into the nozzle section, and the nozzle section is inserted into the insertion pipe.
Since it will be communicated with more mixing quality,
Even if the nozzle can be detached with one touch,
Leakage of the combined liquid can be prevented.

Further, a motor or the like is driven by a so-called magnet coupling, in which the motor and the rotor are attracted to each other by magnetic force, with a partition provided between the rotor and the rotation drive means such as the motor being interposed therebetween. Since the power is transmitted to the rotor, the motor and the rotor are not mechanically directly connected to the rotor. Therefore, not only is the liquid on the rotor side prevented from being transmitted to the side of the motor, etc., but also if the viscosity of the liquid becomes high or the liquid hardens, the rotation of the motor etc. is hindered even if the rotor does not rotate. As a result, an excessive load is prevented from being applied to the motor and the like.

Further, since the portion where the liquid mixture can be contacted is made of a non-adhesive material, the liquid mixing according to the present invention can be used for mixing / discharging those having a high tackiness by mixing and especially two-part adhesives. When using the discharge device, it becomes difficult for the adhesive or the like to adhere to the outer cylinder, the nozzle, or the rotor,
The adhesive or the like hardens and hardly becomes clogged in the outer cylinder or the nozzle. Even if the adhesive hardens and becomes clogged in the outer cylinder or the nozzle, the adhesive force between the inner surface of the outer cylinder or the nozzle or the outer surface of the rotor and the hardened adhesive is small, and the cleaning property and Excellent maintainability.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which a liquid mixing and discharging apparatus according to the present invention is applied to a two-liquid type mixing and discharging apparatus will be described below with reference to FIGS. FIG. 1 shows an example of the entire liquid mixing and discharging apparatus according to the present invention. As shown in FIG. 1, the liquid mixing / discharging apparatus 10 includes components independently provided, and includes a pump section 11, a mixer section 12, a tank 13, a heater 14, a motor drive controller 15, and a heater. It comprises a controller 16.

The pump section 11 has, for example, two pumps built therein, and supplies each liquid, for example, a main agent and a curing agent in the case of a two-component type adhesive to each tank 1 through a suction pipe 17.
3 and can be transported via the discharge pipe 18 to the mixer section 12 without mutual contact. The transport amount of each liquid is adjusted by a controller (not shown) that controls the rotation speed of the pump. The injection pressure of each liquid into the mixer section 12 is lower than the conventional pressure, for example, about the atmospheric pressure. At that time, in order to keep the viscosity of the liquid in the tank 13 constant,
The tank 13 is heated by a heater 14, and the temperature is adjusted by a heater controller 16.

The mixer section 12 mixes and agitates the liquids sent from the pump, and discharges them as a uniform mixed liquid in a fixed amount. The mixer unit 12 has a built-in motor (not shown) for mixing, stirring and discharging the liquid, and the discharge amount can be adjusted by adjusting the rotation speed of the motor by the motor drive controller 15. It has become. In FIG. 1, what is indicated by reference numeral 19 is a fixing jig such as a fixing stand on which the pump unit 11 is mounted and a stand for holding the mixer unit 12.

FIG. 2 shows an example of the mixer section 12 in an enlarged manner. In the figure, the reference numeral 20 indicates a mixer body, the reference numeral 30 indicates an outer cylinder, and the reference numeral 40 indicates a nozzle portion.
The code indicated by reference numeral 50 is a code for supplying electric power to the motor.

FIG. 3 is an exploded view of the mixer section 12. In the same figure, what is indicated by reference numeral 21 is a motor storage portion for storing a motor, and reference numeral 22 is
Is a shaft supporting portion that supports the rotating shaft (shaft) of the motor, a reference numeral 23 is a liquid introduction portion that guides liquid into the outer cylinder 30, and a reference numeral 24 is a liquid introduction portion. The outer cylinder mounting portion, which is indicated by reference numeral 25 is O
A ring (seal material) indicated by reference numeral 26 is O
A holding plate for fixing the ring is indicated by reference numeral 27. The reference numeral 27 denotes a conduit for guiding the liquid to the liquid introduction unit 23.
Is a retaining material for fixing the pipe section 27,
Reference numerals 29A and 29B indicate screws.
The mixer main body 20 is formed by assembling respective components denoted by reference numerals 21 to 28 with screws 29A, 29B and the like. The rotor denoted by reference numeral 60 is a rotor that is inserted into the outer cylinder 30 and is rotated by the motor.

In this mixer section 12, a rotor 60 is provided with a stirring section 61 and an extruding section 65,
By the rotation of the rotor 60, the two liquids introduced into the outer cylinder 30 are uniformly mixed and stirred by the stirring unit 61, and the mixed liquid is extruded by the extruding unit 65 to the nozzle unit 40.
Are discharged from the discharge port 41 at a constant rate.

As shown in FIG. 4, the liquid supply ports 230 and 231 for supplying the liquid into the outer cylinder 30 are connected to the liquid introduction section 2.
3, a supply port 230 for a liquid (e.g., a hardener) with a small supply amount is opened to the rapid flow portion 70 where the flow of the liquid flowing in the outer cylinder 30 is fast, and a liquid (e.g., a large supply amount) is provided. , Which is the main agent and the supply amount is several to several tens of times the amount of the hardener.) The supply port 231 is open to the slow flow portion 71 where the flow is slow.

Further, the mixer body 20, the outer cylinder 30, and the nozzle section 40 can be detached and attached with one touch, respectively. Further, the attachment / detachment of the pipe section 27 to / from the liquid introduction section 23 can be performed with one touch.
Furthermore, the rotational driving force of the motor is transmitted to the rotor 60 via a magnetic joint formed by a pair of magnetic attraction portions 220 and a magnetic attraction portion 221.

The outline of the configuration of the mixer section 12 has been described above, and further details of each section will be described below. FIG. 5 shows the rotor 60, the outer cylinder 30, and the nozzle section 40 in an enlarged manner. As shown in FIG.
The agitator 61 is provided in the latter half, and the extruding part 65 is provided in the former half integrally or integrally with the agitator 61, and is made of a non-adhesive material such as tetrafluoroethylene resin. The size, that is, the diameter of the rotor 60 is such that it does not rub against the inner peripheral surface of the outer cylinder 30, and a liquid flow path is provided between the outer cylinder 30 and the rotor 60.

The stirring section 61 has a parallel fin 610 and an oblique fin 611, and the parallel fin 610 is
A flange is formed so as to be substantially perpendicular to the direction of the rotation axis 0 (this rotation axis coincides with the center axis of the outer cylinder 30). Row fins 6
Reference numeral 11 is formed so as to protrude so as to be oblique to the rotation axis direction. A plurality of these fins are arranged side by side in the same rotation axis direction to form a parallel fin row 610A or an oblique fin row 611A. The fins adjacent to each other in the rotation axis direction (610 and 610 or 611 and 61)
Between 1) there is a liquid flow path.

FIG. 6 shows a state where the rotor 60 is viewed from the rear. As shown in FIG.
The 10A and the oblique fin rows 611A are provided in two rows, and are alternately arranged along the rotation direction of the rotor 60. Then, adjacent fin rows 610A, 611A
Are separated by a concave ridge (groove) 612. The concave ridge portion 612 serves as a flow path for the liquid, and serves as an escape path for bubbles included in the liquid. In addition, the concave ridge portion 612 includes
When the rotor is reversed, there is also an action of releasing the pressure in the outer cylinder 30, whereby the inside of the nozzle portion 40 is rapidly brought into a negative pressure state, and the dripping from the discharge port 41 is effectively prevented. ing.

FIG. 7 shows a state in which the outer peripheral surface of the stirring section 61 is developed. In the figure, the dimension a is the length of the parallel fin 610, and the dimension b is
The projection length on a plane passing through the parallel fins 610 (ie, a plane perpendicular to the rotation axis of the rotor 60). Dimension a
Is equal to or longer than dimension b, where dimension a is longer than dimension b. Preferably, dimension a is dimension b
It is good to be about 2 to 3 times.

In the agitating section 61 configured as described above, the liquid flows as follows by the rotation of the rotor 60. That is, when the liquid passes between the parallel fins 610, 610 (portion A in FIG. 7), the parallel fin 61
Cutting is performed by the collision with the zero end, and a laminar flow is generated. As a result, as shown by an arrow at the portion (a) (the length of the length indicates the magnitude of the flow velocity; the same applies to the portion at (b) in FIG. 7), the parallel fins 61 adjacent to each other.
Between 0 and 610, the flow gradually increases as approaching the center, and a slip phenomenon occurs with the liquid flowing on or near the surface of the parallel fin 610 to cause mixing and stirring.

When the liquid passes along the oblique fin 611 (portion B in FIG. 7), the liquid flowing above the oblique fin 611 flows downward as indicated by the arrow shown in the portion B. Fins 61 flow faster than the liquid flowing
After passing through 1, the lower liquid is sucked up.
As a result, the sucked liquid collides with the liquid flowing upward, and turbulence is generated. Due to the turbulence, an irregular vortex is generated in the liquid and mixing and stirring occur.

FIG. 8 shows a side view of the rotor 60. As shown in FIG.
A guide groove 650 spirally provided from the boundary with the agitating portion 61 to the tip along the outer peripheral surface of 0 is configured to be a liquid flow path. The number of turns of the groove 650 is not particularly limited, but is about 2.5 turns here. Then, the area (imaginary) of a cross-sectional portion that crosses the groove (the portion 652 sandwiched between the two-dot chain line and the bottom surface 651 of the groove shown in FIG. 8 for illustration) gradually decreases toward the tip. It has been like that. In the present embodiment, as such a groove shape, as shown in FIG. 9 in which the outer peripheral surface of the extruded portion 65 is developed, the tip (lower in FIG. 9)
, The groove width d gradually decreases.

The extruding section 65 constructed as described above
Thus, when the rotor 60 is rotated forward, the liquid is forced to flow toward the tip by the guide groove 650, and the pressure of the liquid is gradually increased by narrowing the flow path.
At this time, the gas contained in the liquid generally has a property of lowering the pressure, and thus escapes to the agitating section 61 side along the guide groove 650.

As shown in FIG. 3, the liquid supply ports 230 and 231 are opened at the front end surface 233 of the shaft support 232 projecting forward from the liquid introduction part 23. The shaft support portion 232 rotatably supports the rotor 60, and the rear end of the rotor 60 is inserted into the shaft support portion 232. The front end face 233 is inclined, so that the rapid flow portion 70 and the gentle flow portion 71 are generated as shown in FIG.
The opening areas of the liquid supply ports 230 and 231 are set to be the same as the supply ratio of each liquid.

That is, each liquid supplied from the liquid supply ports 230 and 231 flows as the rotor 60 rotates. The flow is gentle at the place where the distance between the front end surface 233 and the rear end (the last fin) of the stirring part 61 is wide, that is, at the gentle flow part 71, but gradually becomes faster as the distance becomes narrower. The speed is the fastest at the rapid flow portion 70 with the narrowest interval, and the speed becomes gentler as the interval increases again. In particular, as described above, since the supply port 231 for the liquid with a large supply amount is provided facing the gentle flow portion 71, the flow of the supplied large amount of liquid reaches the rapid flow portion 70, so that the flow becomes extremely large. Become steep. Then, the rapid flow generates a negative pressure in the liquid supply port 230 facing the rapid flow section 70, whereby a small amount of liquid is sucked out from the supply port 230 and efficiently introduced into the outer cylinder 30. It will be.

As shown in FIG. 5, the outer cylinder 30 is made of, for example, a substantially transparent (including transparent and translucent) and non-adhesive material, for example, a synthetic resin material. The space is a mixing room. Mixing and stirring occur when the two liquids are introduced into the mixing chamber and the rotor 60 is rotated. However, since the outer cylinder 30 is substantially transparent, the stirring state can be visually monitored. Further, the nozzle portion 40 is made of a non-adhesive material such as a synthetic resin, and has a tapered shape such that its inner diameter becomes smaller toward the tip, and as the liquid approaches the discharge port 41, the nozzle portion 40 becomes tapered. The pressure increased by the guide groove 650 is further increased. As a result, as described above, the bubbles move toward the opposite side of the discharge port 41 to prevent air from being mixed into the mixed liquid discharged from the discharge port 41, and the liquid is easily drained.

The nozzle portion 40 is fitted to the outer cylinder 30 by a so-called luer lock method. That is, the outer cylinder 30
A female thread portion 31 with a coarse pitch is provided at the tip of the nozzle portion, and a substantially oval-shaped flange portion 42 is provided at the rear end of the nozzle portion 40. By screwing both ends of the flange portion 42 into the female thread portion 31, The outer cylinder 30 and the nozzle part 40 are integrated. In order to prevent the liquid mixture from leaking into the female screw portion 31, a fitting tube 32 provided further inside the female screw portion 31 and communicating with the mixing chamber is provided in the nozzle portion 4.
0 is fitted in the latter half.

The outer cylinder 30 is integrally attached to the mixer main body 20 by so-called bayonet fitting. That is, according to the fitting method, a substantially elliptical flange portion 33 is provided at the rear end of the outer cylinder 30, and the flange portion 33 is inserted into the insertion opening formed in the outer cylinder mounting portion 24. The outer cylinder 30 is rotated by about 90 degrees while being inserted and pressed into the outer tube 240 (see FIG. 3). The insertion port 240 has a substantially complementary shape with the flange 33.

FIG. 10 shows the front half of the mixer body 20, and FIG. 11 shows the front half in an exploded manner. The back side surface of the outer cylinder mounting portion 24 is formed in a concave shape, and serves as a storage portion 241 for storing the flange portion 33 of the outer cylinder 30. By rotating the outer cylinder 30 as described above, the flange portion 33 is moved to the front plate portion 242 of the storage portion 241.
The outer tube 30 is prevented from being pulled out by allowing the outer tube 30 to reach the position between the outer tube 30 and the liquid introducing portion 23.
In addition, a sealing material such as an O-ring is provided at a portion of the liquid introduction portion 23 that is in contact with the flange portion 33, so that leakage of the liquid is naturally prevented.

The liquid introducing section 23 is made of a non-adhesive material similarly to the rotor 60, and an import section 234 for fitting the tip of the pipe section 27 into a side portion thereof is opened for each liquid. I have. The import unit 234 is a liquid introduction path 2 that is formed in the liquid introduction unit 23 for each liquid.
The liquid is supplied to the liquid supply port 230 or 231 through a pipe 35 (see FIG. 4), and guides the liquid flowing through the pipe section 27 into the outer cylinder 30. Import unit 234
The O-ring 25 is fitted in the vicinity of the opening end, and the pressing plate 26 is covered. The holding plate 26 is provided with a through hole 260 through which the conduit 27 is inserted.

The pipe section 27 is made of, for example, a metal cylindrical body, and a discharge pipe 18 is provided at the rear end thereof in a watertight manner by using a connecting member 180 such as a cap nut as shown in FIG. It can be connected. This pipe section 2
7 is housed in a slit 222 provided in the shaft support portion 22 when it is attached to the mixer body 20 as shown in FIG. The retaining member 28 has a substantially C-shaped cross section in which a slit 280 is formed in the side surface of the columnar body in the axial direction, and is rotatably attached to one end of the slit 222. When fixing the pipe section 27, the slits 222 and 280 are aligned, and after the pipe section 27 is inserted, the retaining member 28 may be rotated as shown in FIG.

As shown in FIG. 4, the shaft supporting portion 22 is provided with a through-hole through which a motor shaft 80 is inserted from the rear. Bearing part 2 that supports 81
23. The bearing portion 223 is located just behind the shaft support portion 232 via the partition 236 provided inside the liquid introduction portion 23 when the liquid introduction portion 23 is assembled to the shaft support portion 22. It has become. The partition wall 236 separates the internal space of the mixer main body 20 from the internal space of the outer cylinder 30, thereby preventing the liquid from flowing back from the outer cylinder 30 into the mixer main body 20. That is, the rotor 60 and the rotating cylinder 8
Liquid is prevented from adhering to the motor along the shaft 1 and the shaft 80.

In order to transmit the rotational driving force of the motor to the rotor 60 through the partition 236, in the present embodiment, the above-described transmission means using the magnet joint is used. FIG. 12 shows an enlarged portion of the magnet joint. That is, a magnetic attraction portion 220 is provided at the tip of the rotary cylinder 81 inserted into the bearing portion 223, and a magnetic attraction portion 221 is provided at the rear end of the rotor 60 inserted into the shaft support portion 232. Is provided.
Then, the magnetic attraction unit 220 and the magnetic attraction unit 22
1 attract each other with the partition wall 236 interposed therebetween, so that the driving force is transmitted while being isolated from each other. As a result, even if the rotor 60 becomes unrotatable, since the rotor 60 and the motor are not mechanically directly connected to each other, the motor idles and the motor is prevented from being damaged.

Magnetic attraction part 220 and magnetic attraction part 221
Are a pair of magnets S and N (S pole and N
Pole). That is, the magnetic attraction unit 220
Between different poles (S-
The suction force of N) and the repulsion force of the same poles (SS and NN) prevent the suction portions 220 and 221 from being attracted to the partition wall 236, and the bearing portion 223, the shaft support portion 232 and The sliding resistance to the partition 236 is kept small.

According to the above embodiment, the mixer section 12 is provided with the detachable pipe section 27, and the pipe section 27 is provided.
Is adapted to be fitted to the import unit 234 with one touch, the pipe section 27 is removed from the import section 234, and the amount of liquid discharged from the pipe section 27 is measured. The actual discharge amount of each liquid transported from each pump can be simply measured simply by attaching the pipe section 27. Also, since the attachment / detachment of the mixer body 20 and the outer cylinder 30 and the attachment / detachment of the outer cylinder 30 and the nozzle portion 40 can be performed with one touch, respectively.
Disassembly and assembly of the mixer section 12 are facilitated. Further, since the rotational driving force of the motor is transmitted to the rotor 60 by the magnetic coupling through the partition 236, not only is the motor prevented from being contaminated with liquid, but also the rotation of the rotor 60 is prevented. The motor is prevented from being damaged when disabled. Furthermore, since the outer cylinder 30, the nozzle portion 40, the liquid introduction portion 23, and the like are made of a non-adhesive material, they are hardly clogged, and even if clogged, they can be easily repaired, and are excellent in cleaning property and maintainability. Further, since the mixer section 12 is independent of other components of the liquid mixing and discharging device 10, the liquid mixing and discharging device 1
In addition to relaxing various restrictions such as the installation location of No. 0, the operability is excellent.

In the above embodiment, the liquid mixing and discharging apparatus according to the present invention is applied to a two-liquid type mixing and discharging apparatus. However, the present invention is not limited to this. It goes without saying that the present invention can be applied to the case of performing, and the present invention can also be applied to the case of discharging only one liquid. In the above embodiment, the mixed liquid is discharged from the discharge port 41. However, the present invention is not limited to this, and the mixed liquid is transported to another device or the like via a tube without discharging the mixed liquid. It may be as follows.

Further, the attachment and detachment of the mixer section 12 and the pipe section 27, the mixer body 20 and the outer cylinder 30, and the attachment and detachment of the outer cylinder 30 and the nozzle section 40 are not limited to those of the above-described embodiment, and can be detached with one touch. If possible, it may be in any form. Furthermore, it goes without saying that the motor and the rotor 60 may be mechanically directly connected to each other, and the rotational driving force of the motor may be directly transmitted to the rotor 60. In the above embodiment, the outer cylinder 30 and the nozzle portion 40 are substantially transparent. However, the present invention is not limited to this. For example, when the main agent of the ultraviolet curable adhesive and the curing agent are mixed, Needless to say, the outer cylinder 30 and the nozzle portion 40 are opaque.

[0055]

According to the liquid mixing and discharging apparatus of the present invention, the mixer body is provided with an import section for each liquid and a pipe section which can be detached and attached to the import section with one touch. Remove the pipe section from the section,
After measuring the discharge amount of the liquid from the pipe section, the actual discharge amount of each liquid transported from each pump can be easily measured simply by attaching the pipe section to the import section again. . In addition, the liquid supply port for liquid with a small supply amount
Is open facing the rapid part where the flow of liquid flowing in the outer cylinder is fast.
The liquid supply port for liquids that are
It is set so that it opens to the outlet, so supply
A large amount of liquid flows into the gentle flow section in the outer cylinder, and
When a large amount of liquid flows through the outer cylinder and reaches the rapid
And the flow becomes very steep. And that steep flow
As a result, a negative pressure is generated at the liquid supply port facing the rapid flow area,
As a result, a small amount of liquid is sucked out from the supply port.
Is efficiently introduced into the outer cylinder,
The supply amount of liquid flows backward from the small liquid supply port.
To prevent liquid from being supplied,
It can flow into.

Further, since the outer cylinder is integrally attached to the mixer main body by so-called bayonet fitting, the outer cylinder can be attached and detached with one touch. Furthermore, since the attachment / detachment of the outer cylinder and the nozzle portion is of a so-called luer lock type, the attachment / detachment of the nozzle portion can be performed with one touch. Therefore, the disassembly and assembly of the mixer section becomes easy. Ma
The mix inside the outer cylinder is further inside the female thread of the outer cylinder.
Fitting into the nozzle chamber while communicating with the
The nozzle is attached to the outer cylinder by projecting the pipe.
When attached, the fitting tube communicating with the mixing chamber is
The nozzle part is connected to the mixing quality by the fitting tube.
The nozzle will be passed through the outer cylinder with one touch
Even if it is detachable, it prevents the mixture from leaking into the female thread.
Can be stopped.

Further, since the rotational driving force of the rotational driving means such as a motor is transmitted to the rotor through a partition by a so-called magnet joint, the liquid on the rotor side is transmitted to the motor and the like. In addition to preventing the liquid from coming out, when the viscosity of the liquid becomes high or the liquid hardens, the liquid is prevented from being damaged by idling of the motor or the like, and a serious accident is prevented from occurring.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an example of a liquid mixing and discharging device according to the present invention.

FIG. 2 is a perspective view showing an example of a mixer section in the liquid mixing and discharging device.

FIG. 3 is an exploded perspective view of the mixer section.

FIG. 4 is a longitudinal sectional view of the mixer section.

FIG. 5 is an exploded perspective view showing an enlarged example of a rotor and an outer cylinder in the mixer section.

FIG. 6 is a schematic rear view of the rotor.

FIG. 7 is a development view of a stirring section of the rotor for explaining an example of an arrangement of fin rows in the rotor.

FIG. 8 is a side view of the rotor.

FIG. 9 is a development view of an extruded portion of the rotor for explaining one shape of a guide groove in the rotor.

FIG. 10 is an enlarged perspective view showing an example of a liquid introduction member in the mixer section.

FIG. 11 is an exploded perspective view of the liquid introduction member.

FIG. 12 is a perspective view of a magnet joint part for explaining one means for transmitting rotational driving force in the mixer part.

FIG. 13 is an overall perspective view schematically showing a conventional liquid mixing and discharging device.

FIG. 14 is a perspective view of a mixer section in the conventional liquid mixing and discharging device.

FIG. 15 is a plan sectional view schematically showing a joint portion between a mixer section and an apparatus main body in the conventional liquid mixing and discharging apparatus.

FIG. 16 is a plan sectional view showing a state where a rotor is accommodated in a mixing chamber of the conventional mixer section.

FIG. 17 is a perspective view of the conventional rotor.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 liquid mixing / discharging device 12 mixer section 20 mixer body 21 motor storage section 22 shaft support section 23 liquid introduction section 24 outer cylinder mounting section 25 O-ring (seal material) 27 conduit section 28 retaining material 30 outer cylinder 31 female screw section 33 , 42 Flange part 40 Nozzle part 60 Rotor 61 Stirring part 65 Pushing part 220 Magnetic attraction part 221 Magnetic attraction part 230, 231 Liquid supply port 234 Import part 236 Partition wall 240 Insertion port 241 Storage part

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B05C 5/00-5/04 B05C 7/00-21/00

Claims (4)

(57) [Claims] 1. An outer cylinder capable of introducing a plurality of liquids therein at a predetermined ratio without contacting each other, and a plurality of liquids supporting a base end of the outer cylinder and opening toward the inside of the outer cylinder. and a mixer body comprising a feed opening, the said mixer body, and importing unit for receiving a liquid to flow communicatively connected to the supply port to the supply port, one-touch to the import unit
And a pipe section made of a cylindrical body that guides the liquid to the import section and is provided for each liquid, and is supplied.
The liquid supply port for the small amount of liquid is
A large amount of liquid that is opened facing the rapid flow area where the flow is fast
Liquid supply port is opened facing the slow flow part with slow flow
Liquid mixing and discharging apparatus characterized by being urchin set. 2. The method according to claim 1, wherein the plurality of liquids are not brought into contact with each other.
An outer cylinder that can be introduced therein at a predetermined rate, and a base of the outer cylinder.
A plurality of liquid supplies supporting the ends and opening into the outer cylinder
A mixer body having a mouth, the mixer body
A liquid connected to the supply port and flowing to the supply port.
Acceptable import unit and detachable to the import unit
A pipe consisting of a cylinder guiding the liquid to the import section
A passage portion is provided for each liquid, and a flange portion is provided on a part of the base end edge of the outer cylinder so as to protrude, while an outer cylinder mounting portion for receiving the flange portion is provided on the mixer body. The outer cylinder mounting portion has an opening which is substantially complementary to the flange and has an opening through which the flange can be inserted, and the insertion port is provided on the back side of the outer cylinder mounting portion. A storage portion that can store the flange portion is provided on the side, and by rotating the flange portion inserted from the insertion port and allowing it to reach the storage portion, the outer cylinder is attached to the mixer body. A liquid mixing and discharging device, comprising: 3. The method according to claim 1, wherein the plurality of liquids are not brought into contact with each other.
An outer cylinder that can be introduced therein at a predetermined rate, and a base of the outer cylinder.
A plurality of liquid supplies supporting the ends and opening into the outer cylinder
A mixer body having a mouth, the mixer body
A liquid connected to the supply port and flowing to the supply port.
Acceptable import unit and detachable to the import unit
A pipe consisting of a cylinder guiding the liquid to the import section
A passage portion is provided for each liquid, and a detachable nozzle portion is provided at the distal end of the outer cylinder. A female screw portion provided at a distal end portion of the outer cylinder has a base end of the nozzle portion. The nozzle part is attached to the outer cylinder by one-touch by screwing the flange part projecting from a part of the edge , and the female part of the outer cylinder is attached to the outer cylinder.
At the inside of the outer cylinder, to the mixing chamber in the outer cylinder
And a fitting tube that fits into the nozzle
A liquid mixing and discharging device , characterized in that the device mixes and discharges. 4. A method in which a plurality of liquids are not brought into contact with each other.
An outer cylinder that can be introduced therein at a predetermined rate, and a base of the outer cylinder.
A plurality of liquid supplies supporting the ends and opening into the outer cylinder
A mixer body having a mouth, the mixer body
A liquid connected to the supply port and flowing to the supply port.
Acceptable import unit and detachable to the import unit
A pipe consisting of a cylinder guiding the liquid to the import section
A path portion, provided for each liquid, provided with a rotor that is inserted into the outer cylinder and rotatable about a center axis of the outer cylinder as a rotation axis, and a driving unit that rotationally drives the rotor and the rotor. A partition for maintaining watertightness is provided therebetween, and a magnetic attraction unit that is rotationally driven by a driving unit and a magnetic attraction unit that is provided integrally with the rotor are mutually attracted across the partition. The liquid mixing and discharging apparatus is characterized in that the rotational driving force of the driving means is transmitted to the rotor.