JPS6251669B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for simultaneous application of two-component adhesives.

Examples of two-component adhesives include epoxy adhesives,
Urethane-based and acrylate or methacrylate-based adhesives are widely used, but these two-component adhesives are typically applied using applicators such as automatic applicators or lever-operated handle guns. be. However, in conventional coating devices and machines, in many cases, the introduction of the adhesive into the liquid reservoir is accomplished by providing an opening on the side or above the liquid reservoir and attaching an independent adhesive introduction pipe to this opening. As a result, the structure was complicated and bulky, and maintenance and handling were complicated.In addition, when used as a lever-operated handle gun, the assembly process of gluing caused hand fatigue. The drawback was that it was extremely difficult to use.

The object of the present invention is to correct such drawbacks and provide a two-component adhesive applicator that has a simple structure and is easy to maintain, handle, and apply. At least one hole is provided in the flow path through which the adhesive passes and at the tip so that the adhesive flows out into a reservoir provided at the end of the main body.
Two sliding shafts provided in the same direction are fitted in parallel so as to be slidable in the axial direction, and an on-off valve is constructed.
The present invention is characterized in that an air cylinder is provided to simultaneously open and close the on-off valve.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

1 and 2 show an embodiment of the present invention, in which 1 is the main body of the two-component adhesive applicator of the present invention, 2 is a sliding shaft, and the sliding shaft 2 is the main body. 1
Two parallel O-rings 3a are slidably fitted into each other to form an on-off valve, and a channel 4 through which the adhesive passes is formed in the center, and a passage 4 through which the adhesive passes through the tip. At least one hole 6 (in this embodiment, two on each sliding shaft) is provided so that the liquid flows into a reservoir chamber 5 provided at the end of the main body 1. Therefore,
The adhesive liquid passes through the flow path 4 from the inlet 7 of the sliding shaft 2 and is introduced into the liquid reservoir chamber 5 through the hole 6 at the tip of the sliding shaft 2.

FIG. 1 shows a state in which the on-off valve is closed and the adhesive liquid in the liquid reservoir chamber 5 is not discharged. In this closed state, the spring 8 pushes down the shoulder 9 of the sliding shaft 2, and the sliding It is formed by the protrusion 10 at the most extreme end of the shaft 2 coming into contact with the valve seat 11 .

Under such conditions, when air is introduced through the air introduction pipe 13 provided for introducing air into the air cylinder 12 and pressure is applied to the air chamber 14, the piston 15 is pushed up, and this pushing up force is applied to the shoulder. 9 and pushes the sliding shaft 2 upward, the on-off valve opens and the adhesive liquid in the liquid reservoir chamber 5 is discharged to the outside through the discharge port 16 (discharge port 1
Various types of nozzles, such as a double pipe nozzle (see Japanese Patent Application Laid-open No. 151325/1983), can also be attached to the tip of the nozzle 6. ). In addition, by attaching the spring 8 to the air chamber 14 and introducing air into the spring chamber 17, the on-off valve closes when pressurized with air and opens when the air is released. Regarding opening and closing, it is also possible to have a structure opposite to the above structure. Furthermore, as shown in FIG. 2, air introduction pipes 13a and 13b are provided in the spring chamber 17 and the air chamber 14, respectively, to introduce air separately, and the spring chamber 17 and the air chamber 14 are alternately pressurized. Piston 1 due to the pressure difference in the chamber
5 may be moved, thereby opening and closing the on-off valve. In this case, piston 15
Since the spring moves due to the pressure difference between the two chambers, the desired purpose can be achieved without providing a spring in the spring chamber 17 as in the embodiment shown in FIG.

The liquid reservoir chamber 5, the air chamber 14, and the spring chamber 17 are each sealed with O-rings 3a, 3b, and 3c to prevent leakage of liquid or air, and are configured to maintain airtightness. ing.

As explained above, according to the configuration of the present invention,
The sliding shaft of the on-off valve and the pipe for introducing the adhesive liquid can be integrated, and the on-off valve can be opened and closed simultaneously using an air cylinder.
The structure of the entire coating device can be simplified, making maintenance and handling easier. In addition, since it is simple in appearance, it is easy to integrate into automatic coating equipment, and even as a manual gun, the on-off valve can be opened and closed with a single touch as long as an air control switch is attached to the gun. Therefore, it can be used without making the hands feel tired even during the bonding process in the assembly line.

[Brief explanation of the drawing]

1 and 2 are schematic diagrams showing embodiments of the present invention. In the drawing, 1 is the main body, 2 is the sliding shaft, 3a, 3b,
3c is an O-ring, 4 is a flow path, 5 is a liquid reservoir chamber, 6
is the hole, 7 is the inlet, 8 is the spring, 9 is the shoulder,
10 is a protrusion, 11 is a valve seat, 12 is an air cylinder, 13 (13a, 13b) is an air introduction pipe, 14
is an air chamber, 15 is a piston, 16 is a discharge port, 17
There is a spring room.

Claims (1)

[Claims] 1. A sliding shaft provided in the main body of the device, with a flow path through which the adhesive liquid passes through the center and at least one hole at the tip so that the adhesive flows out into a liquid reservoir provided at the end of the main body. A two-component adhesive application device, characterized in that two parts are fitted in parallel in the same direction so as to be slidable in the axial direction to form an on-off valve, and an air cylinder is provided to simultaneously open and close the on-off valve. .