JPH0574412B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a portable resin mixing device for mixing and using a so-called two-component adhesive consisting of a main resin and its curing agent.

(Prior Art) Conventionally, as such a mixing device, a portable mixing injector described in, for example, Japanese Utility Model Publication No. 53-52689 is known.

As shown in FIG. 4, this portable mixing injector has a plurality of material containers c formed by partitioning a flexible bag a with a flexible partition wall b, and a front end of each material container c. are connected to each other at the material collecting part d, and an injection pipe f having a number of twisting plates e for mixing the materials is connected to the front end of the material collecting part d. The bag a is squeezed from the rear end, and the plurality of semi-fluid resin materials stored in each material container c are fed into the injection pipe f, where they are mixed and then discharged from the nozzle g. Ta.

(Problem to be solved by the invention) However, in the above mixing injector, each material container c
Since the bag body a is not equipped with an accurate squeezing means for quantitatively feeding the resin material contained in the bag body a into the injection pipe f, the mixing ratio of the resin materials fluctuates and the properties of the mixed resin become unstable. In addition, since each resin material comes into contact with each other in the material gathering part d, which is the supply path, and is mixed to some extent, if the mixing injector is left for a certain period of time after use, the resin material will harden and the material There was a problem in that the collecting part d became clogged, and thus the mixing injector could not be reused, and the unmixed resin materials remaining in each material container c were also discarded.

Therefore, the present invention is capable of mixing multiple types of resins at a certain ratio accurately, and can be reused even if the resin mixing device is left for a certain period of time after use, and the unmixed resin remaining inside the device can be The technical problem to be solved is to make it possible to use the information effectively.

(Means for Solving the Problems) A technical means for solving the above problems is to provide a resin feeder with a plurality of cylinders having a predetermined cross-sectional area ratio, and a plurality of pistons whose bases are integrally formed. A right-handed helical plate and a left-handed helical plate are installed, each of which can be fitted into a cylinder, and the head of each cylinder is removably connected to the resin supply device through an independent supply path. The reason is that it is connected to the resin mixer.

(Function) When each cylinder is filled with multiple types of resin, such as the main ingredient of a two-component adhesive and its curing agent, and extruded by each piston, each resin is filled in an amount corresponding to the cross-sectional area ratio of each cylinder. , is extruded through the feed channel to the mixer.

Further, until extruded into the mixer, each resin passes through separate supply channels, so they do not come into contact with or mix with each other. Therefore, when the mixing device is left in use, curing of the resin occurs only within the mixer, which is removable from the resin supply device.

(Example) Next, an example of the present invention will be described based on FIGS. 1 to 3.

The resin mixing device 1 is made up of a resin feeder 2, a mixer 3, and a piston body 4, each made of synthetic resin, shown in an exploded state in FIG. 1, combined as shown in FIG.

The resin supply device 2 is provided with a pair of cylinders 6 and 7 having a predetermined cross-sectional area ratio in the axial direction of a main body 5 formed in a cylindrical shape. A mixer connection part 8 is provided protruding from the mixer connection part 8, and a tubular mixer 3 is provided at the mixer connection part 8.
A connecting pipe 10 is provided for extrapolating. A protrusion 11 is provided around the outer periphery of the connecting pipe 10.

Further, from the head portions of the cylinders 6 and 7,
A supply path 1 that passes through the main body 5, the mixer connection part 8, and the connection pipe 10 and opens at the distal end surface of the connection pipe 10.
2 and 13 are provided respectively. These supply passages 12, 13 are formed independently of each other, and the diameters of the supply passages 12, 13 are equal to those of the cylinders 6, 7.
The settings are set to such an extent that the semi-fluid resin filled in the container will not cause gravity flow.

Next, from the distal end surface of the connecting pipe 10, the supply path 1
A partition plate 14 is provided upright along the boundary between the openings 2 and 13. The partition plate 14 is fitted into the mixer 3, which will be described later, which is inserted into the connecting pipe 10, so that both ends of the partition plate 14 come into sliding contact with the inner wall of the mixer 3. Therefore, the internal space of the mixer 3 near the attachment part 15 to the connecting pipe 10 is
A portion communicating with the supply path 12 by the partition plate 14;
It is divided into a portion communicating with the supply path 13.

The mixer 3 is a tubular body whose diameter gradually decreases toward the distal end, and as shown in FIG. 16, the mixer 3 is removably connected to the connecting pipe 10 by fitting the protrusion 11 and the groove 16. Next, inside the mixer 3, a large number of torsion plates 17, 17' for resin mixing are alternately installed. These torsion plates 17, 17' are of the known type described in the above-mentioned Japanese Utility Model Publication No. 53-52689, and the torsion plates 17 are spiral plates twisted 180° to the left between both ends of the mixer 3 in the longitudinal direction. The torsion plate 17' has the same shape twisted 180 degrees to the right, and the upper end of the first torsion plate 17 is out of phase by 90 degrees with respect to the partition plate 14. The upper and lower ends of each torsion plate 17, 17' are arranged inside the mixer 3 with a phase shift of 90 degrees, and both ends of each torsion plate 17, 17' are arranged inside the mixer 3. fixedly attached to the inner wall of the In addition,
A small diameter nozzle 18 is formed at the tip of the mixer 3.

Next, the piston body 4 is attached to a handle 1 having a rectangular plate shape.
A pair of pistons 20 and 21 are provided protruding from 9. The pistons 20 and 21 are connected to the cylinder 6,
The base portion thereof projects integrally with the handle 19 in a positional relationship such that it can be inserted into the cylinders 6 and 7, respectively, and has a diameter that substantially corresponds to the cylinders 6 and 7. The head portions of the pistons 20 and 21 have cylinders 6 and 7.
A plurality of sealing protrusions 23 and 24 each having an outer diameter that is in close contact with the inner circumferential surface of the sealing member are integrally molded.

In the above configuration, the cross-sectional area ratio of the cylinders 6 and 7 is determined within a range of about 1:1 to 1:20 depending on the desired mixing ratio of the main ingredient and curing agent of the two-component adhesive. and is not limited to what is shown. Furthermore, as shown in FIG. 2, the supply passages 12 and 13 may be formed with a cross-sectional area ratio corresponding to the cross-sectional area ratio of the cylinders 6 and 7, but the cross-sectional area and cross-sectional shape are not particularly limited. . Furthermore, protrusion 2
3 and 24 are not limited to the illustrated cross-sectional shape, but may be formed to have a semicircular cross-section or the like.

This embodiment configured as described above is used as follows.

First, the cylinders 6 and 7 are each filled with different types of semi-fluid resin. Normally, the large-diameter cylinder 7 is filled with the main agent of the two-component adhesive, and the small-diameter cylinder 6 is filled with its curing agent.

Then, pistons 20 and 21 are installed in the cylinders 6 and 7.
When the pistons 20 and 21 are inserted simultaneously by pushing the handle 19, the resin filled in the cylinders 6 and 7 is transferred to each supply path 1 in an amount corresponding to the cross-sectional area ratio of the cylinders 6 and 7.
2 and 13, and is pushed out from the connecting pipe 10 into the mixer 3.

Inside the mixer 3, each resin is prevented from contacting or mixing with each other by the partition plate 14, and reaches the part where the first torsion plate 17 is provided, where each resin is divided by half by the torsion plate 17. The mixture is divided into half portions and mixed slightly during the process of being guided by the twisting plate 17 and flowing in a spiral direction, and since the phase changes by 90° at the next twisting plate 17', it is further divided into half portions and further mixed. Divided and mixed.

In the process of being repeatedly subjected to the action of the torsion plates 17, 17' in this manner, the uniformly mixed two-component resin is discharged from the nozzle 18 and is used as an adhesive.

By the way, after using the resin mixing device 1,
When left for a predetermined period of time, a curing reaction proceeds between the mixed base agent and curing agent. However, such a curing reaction occurs only in the interior of the mixer 3 and in the portion distal to the partition plate 14, and not only in the interior of the resin supply device 2 but also in the supply devices 12 and 13.
This does not occur at the opening to the mixer 3. Therefore, by replacing only the mixer 3 with an unused one, the resin mixing device 1 can be reused, and the entire amount of unused resin remaining in the cylinders 6 and 7 can be utilized.

Moreover, the protrusions 23 on the pistons 20 and 21,
Since the seal 24 is integrally molded, it can be manufactured easily and inexpensively, and since the plurality of protrusions 23 and 24 are formed, the sealing effect is more complete.

Although not shown in the drawings, as another embodiment of the present invention, a resin mixing device may be constructed having three or more cylinders and corresponding piston bodies for the purpose of mixing three or more types of resins.

(Effects of the Invention) The present invention allows the mixing ratio of the two-component resin to be kept accurately constant, and can be reused for a long time by simply replacing the mixer. It has an effect that can be used for.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of one embodiment of the present invention;
The figure is a central vertical cross-sectional view (partially shown in half cross-section) showing the assembled state, FIG. 3 is an enlarged view of the main part, and FIG. 4 is a central vertical cross-sectional view showing a conventional example. 1...Resin mixing device, 2...Resin supply device, 3...
...Mixer, 6,7...Cylinder, 12,13...
Supply path, 20, 21...piston.

Claims (1)

[Scope of Claims] 1. A resin supply device is provided with a plurality of cylinders having a predetermined cross-sectional area ratio, a plurality of pistons having integrally formed bases can be fitted into the cylinders, and A resin mixing method characterized in that the head portion is connected to a resin mixer including a right-handed spiral plate and a left-handed spiral plate, which is removably connected to the resin supply device through mutually independent supply paths. Device. 2. Claim 2, characterized in that a partition plate is provided at the connection portion between the mixer and the resin supply device, the partition plate forming a partitioned space corresponding to the plurality of supply channels at the inlet of the mixer. The resin mixing device according to item 1. 3. The resin mixing device according to claim 1, wherein a protrusion for sealing is integrally molded on the outer periphery of the head portion of the piston.