JPH022545Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a device for dispensing a fixed amount of viscous solution.

For example, a highly viscous solution made by suspending a powdered brazing alloy in a solvent is applied to a predetermined location on a product to be brazed using a brazing agent dispenser (viscous solution dispenser), and this product is soldered in a brazing furnace. (not shown) and brazed at high temperatures.

The wax discharging machine 13 is constructed as shown in FIGS. 1 to 4. That is, a handle 15 is attached to the container fitting case 14, and a trigger 16 is rotatably provided on the handle 15.
A fixture 17 is integrally fixed to the upper part of the handle 15, and a long hole 18 is formed in this fixture 17.
A handle 20 having a threaded shaft 19 is also screwed together. A container 21 is fitted into the container fitting case 14, and an air reservoir 22 is also fitted therein. The container fitting case 14 and the air reservoir 22 are removably fitted into elongated holes 18 with pins provided thereon, and are tightened and fixed to the fixture 17 by turning the handle 20. A discharge pipe 23 is provided at a discharge port formed at the tip of the container 21, and the container 21 is filled with a waxing agent (viscous solution) made by adding water to metal powder to form a slurry. Also, air reservoir 2
A hose (air passage) is connected to 2 through the mounting bracket 24.
One end of the hose 25 is attached, and the other end of the hose 25 is connected to a pressure regulator 26. A high pressure air source (not shown) is connected to the pressure regulator 26. The air from this high pressure air source is supplied to the pressure regulator 2.
The air pressure is regulated to a predetermined pressure by turning the pressure adjustment knob 27 provided at 6, and flows into the air reservoir 22 via the hose 25, and the air pressure regulated to the predetermined pressure is provided in a pressure regulator 26. The pressure gauge 28 is designed to indicate the pressure.

In order to apply the waxing agent to a predetermined location on the product, the operator operates the pressure adjustment knob 27 of the pressure regulator 26 to set the air pressure indicated by the pressure gauge to a predetermined pressure, and then the operator presses the handle 15. When the tip of the grip discharge pipe 23 approaches a predetermined location on the product to be brazed, and the trigger 16 is pulled, the lever 29 is centered around a fulcrum (not shown) while the trigger 16 is being pulled. The actuating portion 31 of the air valve 30 communicating with the air reservoir 22 is pushed through the lever 29, and the air in the air reservoir 22 is blown out from the air hole 32, causing the container 2
Air pressure is applied to the bottom 33 of the container 21, and the brazing agent in the container 21 is pushed and discharged from the discharge pipe 23, and is applied to a predetermined portion of a product (not shown) to be brazed in a bulge shape.

The product coated with the brazing agent is placed in a brazing furnace (not shown), and the brazing agent flows under high temperature, thereby brazing the product at predetermined locations.

However, in such a conventional brazing agent application device (viscous solution discharging device), the amount of waxing agent applied is determined by the time the trigger 16 is pulled, and the time the trigger 16 is pulled is determined by the operator. Since the coating conditions were determined based on the application situation, the amount of coating applied to each coating area, which has hundreds of coating areas, varies depending on the individual worker, and even more depending on the operator. If the amount of brazing agent applied is too small, the brazing will not be completed completely, and if it is too much, the brazing agent will be wasted and the finished state of the brazed part will be poor.Furthermore, fluctuations in the amount of brazing agent applied may cause the brazing to fail. The weight of each completed product also fluctuates, which causes a change in the weight of each product.Furthermore, the discharge pipe 23 is easily clogged while the brazing operation is not performed.

This idea was made in view of the above circumstances,
The air in the air reservoir, which is connected to the air pressure source through the air passage, is discharged or stopped from being discharged from the air reservoir by opening and closing the air valve in response to the actuation of the trigger, and this causes the viscous solution in the container to In a viscous solution dispensing device that discharges or stops discharging from a discharge port of a container, the air valve is a solenoid valve interposed in the air passage, and the solenoid valve is provided with a switch that opens and closes according to the operation of a trigger via a timer. By providing a viscous solution dispensing device holder which is electrically connected to the holder and has a container section inside which accommodates a sponge containing water and into which the distal end of the dispensing pipe is removably inserted and pressed against the sponge. , the amount of viscous solution discharged can be kept constant, the waste of this viscous solution can be prevented, work efficiency can be improved, the product weight can be kept constant, and the part where the viscous solution is discharged can be kept constant. Provided is a device for dispensing a fixed amount of viscous solution that not only can give a clean finish, but also prevents the waxing agent from solidifying even when the waxing agent application operation is stopped and allows the application operation to be carried out smoothly. The purpose is to

An embodiment of this invention will be described below with reference to FIGS. 5 to 9. In this embodiment, the same parts as in the conventional example are given the same reference numerals, and the explanation thereof will be omitted.

41 in FIGS. 5 and 6 is a switch (micro switch), and this switch 41 has a handle 1.
5 and close to the trigger 16;
is attached to. The switch 41 includes an actuator (push button switch) 42, as shown in FIG.
A contactor 43 and terminals 44 and 45 are provided, each of which is a spring-like lever with a roller attached to its tip. These terminals 44 and 45 are electrically connected via electric circuits to a timer 48 and a timer switch 49 provided in the pressure regulator 26 shown in FIG. 7 through cords 46 and 47, respectively. Also, a timer 4 is included in the pressure regulator 26.
8 and has a built-in solenoid valve (not shown) that opens and closes the air passage (hose) 25.

On the other hand, a brazing agent amount adjusting container (viscous solution amount adjusting container) 50 for setting the amount of waxing agent discharged from the discharge pipe 23 is prepared. As shown in Fig. 8, holes 51, 52, 53, 54, and 5 circular cross sections with the same diameter and different depths are formed in the synthetic resin plate.
5 and 56 are formed. A unique number is assigned to each hole near its opening.

On the other hand, a wax dispenser holder (viscous solution dispenser holder) 57 is provided to prevent the wax at the tip of the discharge tube 23 from solidifying. As shown in FIG. 9, this is a container in which a conical container part 59 is integrally provided at the bottom of a tubular part 58 into which the container fitting case 14 can be fitted, and is fixed to a plate 61 with a band 60. A sponge 62 is fitted into the inner tip of the conical container portion 59, and water 63 is placed inside the conical container portion 59.

Next, the operation of the viscous solution metering discharge device configured as described above will be explained.

(1) Operate the pressure adjustment knob 27 of the pressure regulator 26 to set the pressure gauge 28 to a predetermined pressure.

(2) After pressing the timer switch 49 of the pressure regulator 26 and setting the timer setting dial 48a to a predetermined scale, when the trigger 16 of the wax discharger 13 is pulled, the contact 43 presses the actuator 42, This closes the contacts in the switch 41, and the timer 48 starts operating.

(3) Timer setting dial 4 of the timer 48
At the same time that 8a starts operating, the pressure regulator 26
A built-in solenoid valve (not shown) is activated, and the air at the pressure mentioned in (1) flows into the air reservoir 22 through the hose 25, blows out from the air hole 32 of the air reservoir 22, and fills the container. Apply air pressure to the bottom 33 of 21. . As a result, the discharge pipe 23
As a result, a predetermined amount of the waxing agent in the container 21 is discharged.

(4) The discharge amount of the brazing agent is determined by the discharge time, that is, the set time of the timer 48. To determine the setting time of this timer 48, select the numbered hole 5 in the brazing agent amount adjustment container 50.
Any one of the holes 1 to 56 is filled with brazing agent, and the time required for filling at that time is set as the set time of the timer 48.

(5) When the timer 48 is set and the trigger 16 is pulled, the brazing agent is discharged from the discharge pipe 23, the timer 48 goes off after the set time, and at the same time, the solenoid valve built into the pressure regulator 26 closes. Then,
The air that was being sent to the air reservoir 22 via the hose 25 is cut off. As a result, the discharge of the waxing agent from the discharge pipe 23 is stopped.

(6) When the wax dispenser 13 is not in use, insert and hold the discharge pipe 23 with the tip facing downward into the conical container portion 59 of the wax dispenser holder 57 so as to hit the sponge 62 containing water. do. As a result, the waxing agent within the tip of the discharge pipe 23 does not harden and does not flow out. Therefore, this wax dispensing machine 13 can be reused at any time.

As explained above, according to this invention, the air in the air reservoir connected to the air source through the air passage is discharged or discharged from the air reservoir by opening and closing the air valve in response to the actuation of the trigger. In the viscous solution quantitative dispensing device, in which the viscous solution in the container is discharged or stopped from being discharged from the discharge port of the container, the air valve is a solenoid valve interposed in the air passage, and the solenoid valve is provided with a trigger. A switch that opens and closes when activated is electrically connected via a timer, and a container part that stores a sponge containing water inside and into which the tip of the discharge pipe is removably inserted and pressed against the sponge is connected electrically via a timer. Since the configuration is equipped with a viscous solution discharger holder, the amount of viscous solution discharged can be kept constant, and waste of this viscous solution can be prevented, work efficiency is improved, and the weight of the product can be kept constant. Moreover, the finished state of the part where the viscous solution is discharged can be kept clean, and when the viscous solution discharge machine is not in use, the discharge pipe can be inserted into the container part of the viscous solution discharge machine holder. This makes it possible to prevent the discharge pipe from being clogged with the viscous solution, allowing the coating operation to be carried out smoothly.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional wax dispenser, Figure 2 is a perspective view of the wax container, Figure 3 is a perspective view of the wax dispenser with the container case removed, and Figure 4. 5 is a perspective view of the pressure regulator, and FIGS. 5 to 9 show an embodiment of this invention. FIG. 5 is a perspective view of the pressure regulator with the container fitting case removed. FIG. 5 is an enlarged perspective view of the circular part in FIG. 5, FIG. 7 is a perspective view of the pressure regulator, FIG. 8 is a perspective view of the container for adjusting the amount of waxing agent, and FIG. 9 is a perspective view of the waxing agent discharge device holder. 15...handle, 16...trigger, 21...container, 22...air reservoir, 23...discharge pipe, 25...
Hose (air passage), 30... Air valve, 32...
Air hole, 41... switch (micro switch),
43... Contact, 48... Timer, 50... Container for adjusting the amount of brazing agent (container for adjusting the amount of viscous solution), 5
7... Brax ejector holder (viscous solution ejector holder), 59... Conical container portion, 62... Sponge,
63...Water.

Claims (1)

[Claims for Utility Model Registration] (1) An air valve communicating with an air reservoir connected to an air pressure source provided on one side of the handle via an air passage is rotatable on the handle. When the air valve is opened and closed, the air in the air reservoir is discharged or stopped from being discharged from the air hole of the air reservoir, and the change in the discharge of this air causes the air adjacent to the air reservoir to open and close. In a viscous solution quantitative dispensing device in which a viscous solution in a container provided in the container is discharged or stopped from being discharged from a discharge port of a discharge pipe provided in the container, the air valve is connected to a solenoid valve interposed in the air passage. The solenoid valve has a contact, and is attached to the handle by bringing the contact into contact with the trigger, and when the trigger is operated, its own contacts are opened and closed via the contact. The switch is electrically connected to the switch via a timer, and further includes a container portion that stores a sponge containing water and into which the distal end of the discharge pipe is removably inserted and pressed against the sponge. A viscous solution quantitative discharge device characterized by comprising a viscous solution discharge device holder. (2) A utility model characterized in that a container for adjusting the amount of viscous solution is provided, in which a plurality of recesses having different volumes are formed to adjust the amount of viscous solution discharged from the discharge port of the container. A viscous solution metering discharge device according to claim 1.