JPS598349B2 - Mixing and discharging device for two-component curable composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a first plunger pump for feeding a first liquid;
The present invention relates to a mixing and discharging device for a two-component curable composition, which is equipped with a second plunger pump for feeding the liquid, and a mixer for mixing the first liquid and the second liquid.

When mixing a two-component curable composition, for example, the first and second components of a two-component adhesive, using this type of device, it is desirable that the mixing ratio can be easily and easily adjusted at any time.

However, until now, nothing has been developed that satisfies this requirement.
Incidentally, in a conventionally known plunger pump type mixing and discharging device for a two-component miscible composition, an actuator that can swing about one end side as a fulcrum and a fixed frame are used to change the discharge mixing ratio of the two components. A plunger pump for the first liquid and a plunger pump for the second liquid, which are parallel to each other, are connected at the front and rear ends of the pumps by means of an actuator and a hinge movable on the frame. It relies on adjustable metering means coupled to a stationary axial plunger pump for the first liquid and a transversely movable axial plunger pump for the second liquid in parallel. arranged and connected to each other by pins whose mounting position can be changed in a direction along the plunger of the pump and whose displacement corresponds to J
J: Two swash plates whose inclination angles are mutually changed are used as plunger stroke regulating means of an axial plunger pump.The two liquids are discharged depending on an adjustable metering means. In order to change the mixing ratio, in the former case it is necessary to move one pump itself by changing the mounting position of the front and rear hinges, which is not easy, and in the latter case, one pump itself must be moved. It is necessary to move the two swash plates and/or change the angles of the two swash plates by displacing the pins, and moving the pump itself poses problems in terms of workability, and changing the angles of the two swash plates requires changing the angles of the two pumps. Since the actuation amount of the plunger is changed together, the mixing ratio of the two liquids is changed by changing the discharge volume of both liquids.Furthermore, the change in the volume of both liquids is different from the change in volume of one liquid by a certain value. Since the liquid is subject to a restriction that is specified only by a change in capacity of a certain characteristic value, it is technically difficult to set the mixing ratio to be varied over a wide range. SUMMARY OF THE INVENTION An object of the present invention is to provide a mixing and discharging device for a two-component curable composition that can easily adjust the mixing ratio of the two components at any time.

The present invention includes a first plunger pump for feeding a first liquid, a second plunger pump for feeding a second liquid arranged in parallel with the first plunger pump, and a second plunger pump for feeding the first liquid and the second liquid. In a mixing and discharging device for a two-component curable composition equipped with a mixer for mixing, the stroke ratio of the plunger of the first plunger pump and the plunger of the second plunger pump is 1:1. A first actuator fixed to the plunger of the first plunger pump, a first actuator fixed to the plunger of the first plunger pump; a first arm that can swing in the operating direction of the plungers of the plunger pumps; a first arm that is arranged opposite to the first arm and is integral with the second actuator; a pin that connects the first actuator and the first arm and is slidable along the longitudinal direction of the first arm; and a pin that connects the first and second arms. A two-component curable composition characterized in that it includes as a component a pin that connects and is slidable along the longitudinal direction of the first arm and displaceable along the longitudinal direction of the second arm. It concerns a mixing and discharging device.

According to the present invention, while the first and second plunger pumps are in operation, the pin of the first actuator of the cheater ring moves in the front-rear direction of the plunger of the first plunger pump, while The pin of the second arm, which is integrated with the actuator, moves in the front-rear direction of the plunger of the second plunger pump, and as these pins move, the first tool swings in the direction of movement of the pin. An equal pin slides along the length of the first arm.

In the present invention, the longitudinal motion ratio of the first actuator and the second actuator is regulated during pump operation by the ratio of the distances from the swing fulcrum of the first arm to the centers of the two pins,
Accordingly, the stroke ratio between the plunger of the first plunger pump and the plunger of the second plunger pump, and therefore the mixing ratio of the first liquid and the second liquid are regulated.

As described above, according to the present invention, in order to change the position of the pin on the second arm along the longitudinal direction of the arm, the distance from the swing fulcrum of the first arm to each center of the two pins is changed. The stroke ratio between the plunger of the first plunger pump and the plunger of the second plunger pump can be changed in multiple stages including 1:1, and the position of the pin on the second arm can be changed and adjusted. A desired two-component mixing ratio can be obtained extremely simply and quickly by simply using the above method, and the setting is technically easy to allow the two-component mixing ratio to be varied over a wide range.

An embodiment of the present invention will be described below with reference to the drawings.

The illustrated device of the present invention is equipped with a rotary suction/discharge switching valve 1, a first plunger pump 12 for feeding the first liquid, a second plunger pump 13 for feeding the second liquid, and a mixer 3. There is. The intake/exhaust switching valve 1 has a rotor 5 with a control flow path 4 for the first liquid and a second liquid, which are connected to each other.
It has a rotor 7 with a control channel 6 for the liquid, and these rotors 5) and 7 are coaxially connected. Also, both rotors 5 and 7
Cleaning agent channels 8 and 9 are formed in the
are connected to secondary ports 10, 11 of the intake/exhaust switching valve by rotational displacement of the rotors 5, 7. The plunger pump 12 for the first liquid and the plunger pump 13 for the second liquid are plungers 12a
, 13a, these plungers are plungers 14a, 14 of hydraulic or pneumatic actuators 14, 14.
It is connected to a via an interlocking mechanism 100 described later,
The cylinders 15 and 16 of the plunger 12a for the first liquid and the plunger 13a for the second liquid are connected to corresponding ports 17 and 18 of the intake/exhaust switching valve 1.

The mixer 3 has a stirring mixing rotor 19 and a first liquid inlet 20
The first liquid inlet 20 and the second liquid inlet 21 are connected to the corresponding boards 10 and 11 of the intake/exhaust switching valve 1.

In the device of the above type, when the rotors 5 and 7 are set to the suction position and the plungers 14a and 14a of the actuators 14 and 14 are retreated, the first plunger 12a and the second plunger 13a are also retreated. ,
A first liquid is drawn into the cylinder 15 from a supply source, such as a hopper, and a second liquid is drawn into the cylinder 16 from a supply source, such as a hopper.

Next, when the rotors 5 and 7 are switched to the discharge position and the plungers 12a and 13a are advanced by the plungers 14a and 14a, the first and second liquids in the cylinders 15 and 16 are sucked into the mixer 3 through the discharge switching valve 1. sent. The twelfth liquid supplied to the mixer 3 is stirred and mixed by a rotor 19 within the mixer 3. The mixture of the twelfth liquid can be extracted from the system through the extraction tube 22. A cleaning agent flow path 8 formed in the rotor 5, 7 of the suction/exhaust switching valve 1,
9 communicates with the secondary ports 10 and 11 of the valve 1 (
(same state as the suction position), by introducing the cleaning agent through the cleaning agent inlet 23 of the same valve 1, the cleaning agent is removed from the space 24 between the rotors 5 and r of the suction/exhaust switching valve 1 → the cleaning agent of the rotors 5 and 7. Flow paths 8, 9 → Secondary side port 1 of valve 1
The cleaning agent is introduced into the mixer 3 through the path from 0, 11 to the introduction ports 20, 21 of the mixer 3, and this path can be cleaned. FIG. 6 shows details of the metering means 100 in the apparatus of the present invention, and the intake/exhaust switching valve and mixer are omitted in FIG.

In FIG. 6, parts with the same reference numerals as those in FIGS. 1 to 5 indicate the same parts. The plunger 12a of the first plunger pump 12 is connected to a block 25, and the plunger 13a of the second plunger pump 13 is connected to another block 26. The former proc 25 is pin-coupled to an elongated hole 29 extending in the length direction of the first arm 28 which can swing in the operating direction of the plunger by a pin 27 protruding laterally from the elongated hole 29, and the latter proc 26 is integrally connected thereto. into the elongated hole 30 extending along the longitudinal direction formed in the second arm 35 and into the elongated hole 29 of the first arm 28,
The second arm 35 is connected by a pin 31 which is slidable along the elongated hole 29 and whose position can be changed along the elongated hole 30 of the second arm 35.

Therefore, the blocks 25, 26, the first arm 28, the second
The arm 35, pins 27 and 31 of the plunger 12a
and 13a, and constitutes a metering means 100 that changeably regulates the stroke ratio of these plungers, and the block 25 is the first actuator of the metering means, and the block 26 is the second actuator. have a child
The latter block 26 also has a second arm 35 integral therewith.
It has rods 32 and 33 extending forward and backward, and the rod 3
2 and 33 are supported by slide bearings (not shown). The actuator 14 is separately connected to each block 25.
, 26, and a common pressure fluid supply pipe (not shown) is connected to both actuators. In the form shown in FIG. 6, when the plungers 14a, 14a of the actuators 14, 14 are driven, the blocks 25, 26 are driven accordingly, and the pin 2 of the block 25 is driven.
7 and the first arm 28 through the pin 31 of the block 26.
The plunger 12a, 13 is centered around the pivot pin 34.
The blocks 25, 26 are swung back and forth in the operating direction of a.
, a swinging arm 28, and a metering means 100 consisting of pins 27 and 31.
The plunger 12a of the second liquid plunger 12a and the plunger 13 of the second liquid plunger pump 13 are interlocked.

At this time, if the position of the sliding pin 31 is aligned with the pin 27, the distance between the axes of the pins 27 and 31 with respect to the axis of the pivot pin 34 of the first arm 28 is equal (and both plans are aligned). The strokes of the shears 12a and 13a are the same.

When the position of the sliding pin 31 is changed, the motion ratio, that is, the stroke ratio of the plunger 13a to the plunger 12a changes.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional plan view showing one embodiment of the present invention, in which the metering means is shown in a rectangular frame, Fig. 2 is a longitudinal side view thereof, and Fig. 3 is the same as shown in Figs. 1 and 2. FIG. 4 is an enlarged sectional view of the intake/exhaust switching valve in the embodiment.
FIG. 5 is a sectional view taken along the line V--V in FIG. 3, and FIG. 6 is a detailed disassembled perspective view of the metering means. 1 is a suction/exhaust switching valve, 3 is a mixer, 5 is a first liquid control valve body (rotor), and 7 is a second liquid control valve body (rotor).
, 8, 9 are cleaning agent flow paths, 10, 11, 17, 18 are valve ports, 12 is a first plunger pump, 13 is a second plunger pump, 15 is a first plunger, and cylinder 16 is a second plunger pump. Cylinder of plunger 20 is the first liquid inlet of the mixer, 21 is the second liquid inlet of the mixer, 100 is the metering means, 25 is the proc (first actuator), 26 is the proc (second actuator), 27, 31,
34 is a pin, 28 is a first arm, 29 and 30 are oblong holes,
35 is the second arm.

Claims (1)

[Claims] 1. A first plunger pump for feeding a first liquid, a second plunger pump for feeding a second liquid arranged in parallel with the first plunger pump, and for mixing the first liquid and the second liquid. In the mixing and discharging device for a two-component curable composition equipped with a mixer, the stroke ratio of the plunger of the first plunger pump and the stroke of the plunger of the second plunger pump is set in multiple stages including a 1:1 ratio. a first actuator fixed to the plunger of the first plunger pump, a first actuator fixed to the plunger of the first plunger pump; a first arm that can swing in the direction of operation of the plungers of both the plunger pumps; 2 arms,
A pin that connects the first actuator and the first arm with a pin and is slidable along the longitudinal direction of the first arm, and a first arm that connects the first and second arms with a pin. 1. A mixing and discharging device for a two-component curable composition, comprising as a component a pin that is slidable along the longitudinal direction of the second arm and displaceable along the longitudinal direction of the second arm.