JPH043763Y2 - - Google Patents

Description

[Detailed explanation of the idea]

<Industrial Application Field> The present invention relates to an injector for injecting mortar slurry into a mold, and particularly relates to an injector having a rod-shaped vibrator. <Prior art> As a conventional device or method for injecting this type of mortar slurry, for example, Japanese Patent Application Laid-open No. 1986-
Publication No. 11313 or JP-A-Sho developed by the inventor of this invention
A technique as shown in Japanese Patent No. 60-89305 is known. That is, the former technology is a technology that applies vibration to the injection tube near the injection port outlet or from the mixer to the injection port to degas the trapped air, and the latter technology vibrates the injection device itself to remove the mortar in the injection tube. This is a technology for defoaming the mortar near the injection port. <Problems to be solved by the invention> However, the above-mentioned conventional techniques have the disadvantage that the device itself is extremely large, or the syringe itself vibrates, resulting in a reduction in the durability of the syringe due to resonance of the syringe itself. Alternatively, when the syringe and the formwork or the syringe and the reinforcing bars come into contact with each other, resonance occurs between the two, resulting in misalignment of the reinforcing bars. The syringe according to the present invention is a completely new technology developed in view of these drawbacks of the conventional technology.It is particularly compact as a whole, can be used even in narrow spaces, and can completely eliminate air bubbles generated in mortar slurry. The present invention seeks to provide a completely new injector that can foam and, by using a flexible sheet, the volume of the inlet can be automatically varied depending on the mortar flow rate. <Means for Solving the Problems> A rod-shaped vibrator is constructed by inserting a rod-shaped vibrator into a mortar retention part having an injection port and attaching the rod-shaped vibrator to a syringe via a cushioning material. It is a syringe with a <Function> As mentioned above, in the injector according to the present invention, the rod-shaped vibrator is attached to the injector via a cushioning material, and a part of this vibrator is inserted into the mortar retention part, so that the mortar retention is caused by the vibrating action of this vibrator. The mortar can be sufficiently retained at the injection port, and the mortar can be degassed sufficiently from the start of injection to the completion of injection.Furthermore, since a flexible sheet is provided at the injection port, this sheet can be Therefore, the volume of the inlet can be automatically changed depending on the flow rate of mortar.
Therefore, no extra space is formed in the injection port, and air entrainment in this part can be reduced. <Example> To specifically explain an example of the apparatus according to the present invention with reference to figures, in FIGS. 1 to 4, an injection port 2 is provided at the bottom of a mortar retention box 1, and this The injection port 2 is composed of an injection port guide portion 3 and a plate 4 provided opposite to the injection port guide portion 3. Reference numeral 5 denotes a slit adjustment plate provided at the inlet 2, which is attached via a plate fixing bolt 6 so as to be able to move up and down along the retention box 1, and configured to adjust the slit of the inlet 2. has been done. A leak-preventing gasket 7 is interposed between the adjustment plate 5 and the plate 4. Furthermore, a net 9 is installed inside the retention box 1 via a support arm 8.
is supported for insertion. Next, 10 is a rod-shaped vibrator, the lower part of which is inserted into the mortar retention box 1 along the mesh 9. The structure and mounting structure of this rod-shaped vibrator 10 are shown in Figures 1, 3, and 4.
As shown in Figures A and B, the vibrating part 10a and the fixed part 10
A vibration isolating rubber 14 is inserted into the block plate fixing bolt 13 welded to the box attachment part 12 at the top of the mortar retention box 1, and a base plate 15 and a fixing bolt are placed on the block plate fixing bolt 13. Insert the block 16 into one piece, and then tighten the block plate fixing nut 17 with bolt 1.
It can be fixed by screwing into 3. The fixing block 16 is the block fixing bolt 1
8 allows the vibrator 10 to be tightened and fixed. Next, as shown in FIGS. 3 and 5A and 5B, there is a gap between the slit adjustment plate 5 and the retention box 1.
Flexible sheet 19 made of plastic sheet such as 0.5 to 2 mm soft vinyl chloride film
is attached by a fixing bolt 6, and this sheet 19 is suspended across the lower part of the injection port 2, and automatically adjusts the volume of the injection port 2 in accordance with the flow rate of mortar flowing through the injection port 2. , and is configured to suppress the entrainment of air bubbles. In the figure, 20 is a formwork side plate for the ALC board, 21 is its bottom plate, and 22 is a reinforcing bar cage placed on this formwork bottom plate 21. When using the device according to the present invention, the device of the present invention, such as the retention box 1, is fixed to the side plate 20 of the formwork for the ALC board using a guide (not shown), and the mortar flowing out from the mixer (not shown) is fixed. The slurry flows into the mesh 9 of the retention box 1, and the flowed mortar slurry is almost completely degassed by the vibration action of the rod-shaped vibrator 10, and flows down into the formwork.
An ALC plate 23 as shown in FIG. 6 can be formed within the mold. ALC board 23 manufactured using the device of the present invention
500 x 500 area of location A where slurry was injected and location B approximately 2m away from it as shown in the figure.
The number of bubbles per mm area was investigated with and without vibration, and the results shown in Table 1 below were obtained.

[Table] Case: Medium viscosity, slow injection Case: High viscosity, fast injection <Effects of the invention> Since the device according to the invention has the structure and function described above, the entire device is compact and can be easily attached to the formwork for use. The injection port is formed in a slit shape, so it can be injected into narrow spaces.A rod-shaped vibrator is inserted into a part of the retention box, so the flowing slurry is reliably degassed by vibration. The rod-shaped vibrator is attached to the injector via a cushioning material.There is no resonance of the injector itself, there is no resonance of the formwork etc. that causes the reinforcing bar basket to vibrate, and there is no need to attach a flexible sheet to the injection port. When a mortar is provided, the action of this sheet changes the volume of the inlet in response to the flow rate of mortar flowing through the inlet, thereby suppressing air bubbles from being drawn into the mortar. It has great effects such as being able to use it even in a flat formwork with a low height, and being able to obtain a defoaming device using a vibrating plate with excellent durability due to its simple structure. It has the following.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the device of the present invention, Fig. 2 is an explanatory view of its use, Figs. 3 to 5 are cross-sectional explanatory views of main parts, and Fig. 6
The figure is a perspective view of the ALC board. 1 is a retention box, 2 is an injection port, 4 is a plate, 5 is a slit adjustment plate, 9 is a net, 10 is a rod-shaped vibrator, 16 is a block, 19 is a flexible sheet, 21 is a formwork bottom plate, and 23 is an ALC board. be.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A rod-shaped vibrator characterized by being constructed by inserting a rod-shaped vibrator into a mortar retention part having an injection port and attaching the rod-shaped vibrator to a syringe via a cushioning material. Injector with vibrator. (2) The syringe with a rod-shaped vibrator according to claim 1 of the utility model registration, characterized in that a flexible sheet is provided at the injection port.