JPS5836502Y2 - Reinforcement fiber dispersion supply device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an apparatus for dispersing and supplying reinforcing fibers.

As a method to obtain concrete and mortar structures with excellent strength properties such as bending strength, tensile strength, and impact strength,
A technique of adding and mixing short metal fibers to the mixture is becoming widely used.

In such techniques, reinforcing fibers need to be evenly dispersed and mixed into the mix of aggregates such as sand and gravel, cement, or mixed materials; Because the fibers are given unevenness and waves to increase the strength of the fibers, and because they are packed in fixed amounts into packaging containers, if they are simply added directly from the container into the blend, fiber balls and segregation may occur due to entanglement.
It becomes impossible to exhibit the desired characteristics.

Various types of reinforcing fiber dispersion machines have been proposed, but conventional dispersion machines only have the function of loosening the reinforcing fibers that are in the form of clumps; Since it was not possible to change it freely,
This is a problem when continuously manufacturing fiber-containing mortar or concrete materials by mixing with aggregate, cement, and water in a continuous mixer, or when spraying involves continuously adding reinforcing fibers to a pre-mixed mixture in a machine. As a result, it was not possible to obtain mortar materials and concrete materials with the desired fiber mixing ratio uniformly and efficiently.

The present invention eliminates the drawbacks of the conventional devices as described above, and provides a device that can continuously disperse reinforcing fibers with a simple structure and continuously supply the dispersed fibers quantitatively to other equipment. The main feature of this system is that a sloping drum with a large number of protrusions planted on its inner peripheral surface and a horizontal lattice drum connected to it are rotatably installed in the reinforcing fiber input hopper. The amount of fiber discharged from the horizontal lattice drum is controlled by driving both drums with a variable speed motor or by inserting an inner plate that can move forward and backward into the horizontal lattice drum.

The present invention will be explained below with reference to the accompanying drawings.

Figures 1 to 4 show an embodiment of the reinforcing fiber dispersion feeder according to the present invention, in which 1 is an input hopper supported by an underframe 2, and has a cylindrical opening 3 on the negative side. ing.

4 is a drum having needle-like protrusions 5 planted in a predetermined arrangement on its inner circumferential surface, and the opening 3 is fitted onto one end of the drum; 6 is a drum having a flange plate 7 on one side and an end plate 8 on the other side made of a large number of rods; The horizontal lattice drum 6 is connected to the rear end of the drum 4 by a flange plate 7.

The drum 4 and the horizontal lattice drum 6 are supported by several sets of rollers 12, 12' attached to the underframe 2 so as to have a predetermined inclination angle with respect to the horizontal. A driven pulley 10 is fixed and rotated at a predetermined speed by a motor 11 such as a continuously variable speed motor installed at the bottom of the underframe 2, a drive pulley 13 attached to its output shaft, and a V-belt.

A through hole 14 passing through the end plate 8 is formed in the center of the driven pulley 10, and a shaft piece 15 is loosely inserted through the through hole 14, and a horizontal lattice drum is attached to the inner end of the shaft piece 15. An inner plate 16 having a diameter moderately smaller than the inner diameter of shaft piece 1 is fixed.
An operating mechanism is provided at the outer end of the horizontal lattice drum 5 to move it forward and backward in the axial direction of the horizontal lattice drum 6.

This operating mechanism can adopt any configuration such as a cylinder, but
In this embodiment, an operating lever 18 whose one end is continuous with a pivot pin 17 is disposed on the underframe 2, and the intermediate portion of the operating lever 18 is pivotally connected to the outer end of the shaft piece 15, so that the operating lever 18 can be rotated. He is trying to move the shaft piece 15 forward or backward.

In other countries, 19 is equipment such as a mixer or sprayer for obtaining fiber-filled mortar or fiber-filled concrete, and 20 is a conveying means for supplying reinforcing fibers to the equipment 19.

Since the present invention has the above-mentioned configuration, the reinforcing fibers are kneaded together with aggregate and cement using a continuous mixer, or the reinforcing fibers are added to a pre-mixed mixture of aggregate and cement and then sprayed. As shown in FIGS. 1 and 2, a conveying means 20 communicating with the charging port 21 of the device 19 is arranged at the lower part of the horizontal grid drum 6, and when the motor 11 starts operating, reinforcing fibers are transferred from the packaging container 22 to the charging hopper 1. Insert F.

In this way, the bulk reinforcing fibers F enter the drum 4 through the opening 3 of the input hopper 1.

At this time, since the drum 4 is rotating at a predetermined speed and protrusions 5 are provided on the inner peripheral surface of the drum 4, the lump-like reinforcing fibers F are caught by the protrusions and lifted as the drum rotates. The action of falling into the drum is repeated, and the surface layer is loosened at this time.

As the drum continues to rotate, the lump-like reinforcing fibers F that remain are scooped out from the outer layer side one by one, rise up, and then disperse when falling, which is repeated, and the loosened fibers gradually accumulate on the inner layer side.

Furthermore, since the drum 4 is inclined with respect to the horizontal, the reinforcing fibers loosened and dispersed as described above are fed forward in the longitudinal direction of the drum 4, and when they reach the horizontal lattice drum 6, they are transported. It is continuously discharged into the conveying means 20 through the gaps between the constituent bars 9.9.

At this time, in the present invention, an inner plate 16 is disposed within the horizontal lattice drum 6, and this inner plate 16 can freely move forward and backward in the drum axis direction.

Therefore, the size W of the effective discharge port of the horizontal lattice drum 6 can be adjusted by the amount of entry of the inner plate 16, which changes the discharge amount of the dispersed reinforcing fibers F' and increases the supply amount to the equipment 19, i.e. The addition rate (mixing rate) of reinforcing fibers to other formulations can be freely controlled.

The discharge amount of the reinforcing fibers can be adjusted to some extent by using a variable speed motor as the motor 11 and controlling the rotation of the drum 4 and the horizontal lattice drum 6. More accurate supply control is possible by also adjusting the degree of approach.

According to the present invention described above, although it has a simple structure, it automatically loosens the reinforcing fibers by simply introducing them from a packaging container, and furthermore, the loosened reinforcing fibers are continuously supplied in fixed quantities to other formulations. In addition, the supply amount can be freely changed according to the setting change of the mixing rate.

Therefore, by using the device of the present invention, it becomes possible to efficiently obtain high-quality fiber-containing mortar materials, fiber-containing concrete materials, etc. that have the desired fiber content and have little variation.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of use of the reinforcing fiber dispersion supply device according to the present invention, Fig. 2 is a vertical side view of the device, Fig. 3 is a plan view thereof, and Fig. 4 is Fig. 2 IV. - It is a sectional view taken along the IV line. 1...Input hopper, 4...Drum, 5
...Protrusion, 6...Horizontal lattice drum, 11
......Variable speed motor, 15...Shaft piece, 1
6...Inner board.

Claims (1)

[Scope of utility model registration request] 1. A reinforcing fiber characterized in that a reinforcing fiber input hopper 1 is rotatably provided with an inclined drum 4 having a large number of protrusions 5 planted on the inner peripheral surface and a horizontal lattice drum 6 continuous with the drum 4. distributed feeding device. 2. Utility model registration in which the horizontal lattice drum 6 is provided with an inner plate 16 that can move forward and backward in the drum length direction, and the inner plate 16 is configured to change the size of the effective discharge opening of the horizontal lattice drum 6. An apparatus for dispersing and supplying reinforcing fibers according to claim 1. 3. The device for dispersing and supplying reinforcing fibers according to claim 1, wherein the drum 4 and the horizontal lattice drum 6 are driven by a variable speed motor 11.