JPS582062B2 - Kneading nozzle for two-component curing resin - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In the present invention, a two-component curing resin is stirred and kneaded in a discharge nozzle without stirring in a pot.

Conventionally, two-component curing resins are extremely difficult to stir and knead due to their physical properties such as viscosity, and most of them rely on the pot stirring method.

In actual work, each type has a different pot life, and the pot must be used within that time, and if the inside is not cleaned at each time, it is inconvenient that it will interfere with the next work. There is.

The object of the present invention is to provide a nozzle that can perform stirring and kneading while simultaneously passing two liquids without stirring the pot in order to eliminate these inconveniences and uneconomical problems.

Now, referring to the drawings, 1 is a nozzle body with a discharge port N opened at the bottom, and is fixed to a connector 5 with a fixing screw S at the other end.

2 is a ring gate with a central hole t and multiple small holes h in the center.
is opened into the ring-shaped cavity C section.

3 is a focusing gate having a central hole H in the center and recesses G on both sides.

4 is a strong pressure gate and has multiple small holes P of a size that the resin cannot pass through unless it is pushed out with pressure, T1 and T2 are the respective guide holes for the two-component resin, and F1 and F2 are the respective pressure holes for the two-component resin. is the entrance, and g is the gap created by the connector 5 and the ring gate 2.

However, as shown in FIG. 1, the structure is such that the required number of strong pressure gates 4, focusing gates 3, strong pressure gates 4, focusing gates 3, etc. are alternately installed in the main body 1 from the discharge port N side. It is a kneading nozzle that is integrated and loaded with a ring gate 2 at the extreme end, and when in use, the connector 5 that guides the two liquids separately is fixed to a connecting part having a structure equivalent to this. .

To explain the operation now, when the main resin is press-injected through the resin injection port F1 and the curing agent is injected through the resin injection port F2, the resin fills the gap g from the main resin guide hole T2, and then enters the cavity C through the small hole h.

At the same time, the curing agent also enters the cavity C from the guide hole T1 through the center hole t, and the two liquids form a tubular flow with the main agent on the outside and the curing agent on the inside.

However, the relative positions of the base agent and curing agent may be reversed.

Then, as the resin continues to be penetrated by pressure, it enters the small hole P of the first strong pressure gate 4 in a laminar flow, and when passing through it, the resin has a large flow velocity near the inner wall surface and in the center. The mixture is mixed in the recess G of the focusing gate 3 with the same effect as when kneading with a roller, passes through the center hole H, is diffused again in the recess G on the opposite side, and is mixed in the next strong pressure gate 4. Small hole P
to go into.

There, when it passes through the small hole P again, it is subjected to the roller effect, then mixed in the concave portion G, and then diffused repeatedly until it reaches the discharge port N and is completely kneaded.

As explained above, unlike conventional pot stirring, this invention kneads a very small amount during extrusion, and even if extrusion is stopped, only the volume inside the nozzle is extruded at each curing start time. This makes it possible to update the time until the pressure is restarted, and when pressurization is stopped, the discharge immediately stops, which has the effect of minimizing waste of resin and increasing work efficiency.

[Brief explanation of drawings]

Fig. 1 is a sectional view for explaining the operation of the kneading nozzle for two-component curing resin of the present invention, and Figs. 2, 3, and 4 show the elements that produce the kneading action, namely the ring gate 2, the focusing gate 3, and the strong pressure. FIG. 4 is a detailed diagram of gate 4; 1... Nozzle body, 2... Ring gate, 3... Focusing gate, 4... Strong pressure gate, 5... Connector, t. ...Center hole, h...Small hole, C...Ring-shaped cavity, H...Center hole, G...Concavity, P・・・
...Small hole, N...Discharge port, F1...
・Resin pressure inlet, F2...Resin pressure inlet, T1...
...Guidance hole, T2...Guidance hole, S...
・Fixing screw, g・・・Gap.

Claims (1)

[Claims] 1 A two-component curing resin kneading nozzle comprising a nozzle body 1 in which strong pressure gates 4 and focusing gates 3 are alternately stacked in multiple stages, and a ring gate 2 is mounted thereon, as shown in the figure.