KR102175572B1 - Feeding apparatus of amophous steel fiber - Google Patents

Abstract

An embodiment of the present invention is to provide an improved amorphous fiber input device so that entanglement of amorphous fibers can be prevented, and amorphous fibers of an appropriate length are adopted and measured in an appropriate amount. An amorphous fiber input device according to the example includes: a storage hopper for storing amorphous fibers for increasing strength by being introduced into a concrete mixture; A porous network installed in at least one inside of the storage hopper and provided with a plurality of holes to allow amorphous fibers shorter than the holes to fall; A vibration generator provided in the storage hopper to impart vibration so that the amorphous fiber passes through the porous network; And an opening/closing part provided below the storage hopper and controlling opening/closing according to the weight of the amorphous fiber passing through the porous network.

Description

Amorphous fiber input device {FEEDING APPARATUS OF AMOPHOUS STEEL FIBER}

The present invention relates to a device for injecting amorphous fibers, and more particularly, to a device for injecting amorphous fibers capable of injecting a fixed amount of amorphous fibers in a process of manufacturing a concrete mixture.

In general, plastic deformation refers to a permanent shape deformation that occurs after a shape deformation that exceeds the elastic limit of a material is applied and cannot return to its original shape. Plasticity is the property that can change its shape through plastic deformation by applying such force.

In a crystalline material, plastic deformation has a close correlation with the structure of the material and crystallographic defects in the material, and plastic deformation occurs through the movement of dislocations, which are line defects in the material.

On the other hand, when the amorphous material solidifies in a molten state, when the metal is cooled at a speed higher than the critical cooling rate, the atoms are regularly arranged and there is no time for crystallization, so that the disordered atomic arrangement state of the liquid phase is maintained even from the solid. That is, the liquid phase cooled at a rate faster than the critical cooling rate has a very high viscosity of the liquid phase in the subcooled liquid phase region below the equilibrium melting point, so that the fluidity of atoms in the liquid phase is greatly reduced.

Therefore, at a very fast cooling rate, atoms that have lost their fluidity are fixed within the non-equilibrium structure, and the properties of the solid phase appear.

Alloys having such a structure are collectively referred to as amorphous alloys, and amorphous materials have a short-range rule of atomic arrangement in terms of atomic structure.

In these structural factors (No slip system, No grain boundary, No crystallization), a material with an amorphous structure exhibits completely different physical, chemical, and mechanical properties from the conventional crystal phase, and has higher strength and lower friction than general metal alloys. Since it has properties such as modulus, high corrosion resistance, and excellent soft magnetic properties, it is a material with very high engineering applicability.

Such amorphous materials can be manufactured in the form of amorphous fibers, and have excellent mechanical properties in tensile strength and corrosion resistance compared to general steel fibers, and thus, research and development to be used for reinforcing concrete is underway.

In order to mix and use amorphous fibers with concrete, it must be mixed with materials such as cement, gravel, and sand constituting the concrete for a certain period of time in a blender.

On the other hand, in the case of conventional steel fibers mixed with concrete, the weight of the fibers is heavy and there is no fiber entanglement, so the steel fibers can be measured by simple vibration.

However, amorphous fibers have a length of 5 mm to 30 mm, a thickness of 28 μm to 40 μm, a width of 1.7 mm to 3.0 mm, and are very thin, light in weight, and due to their flexible properties, entanglement between amorphous fibers is very frequent. Occurs.

Therefore, when amorphous fibers are introduced using an existing steel fiber input device, the amorphous fibers aggregate and move due to the entanglement between the amorphous fibers, and accordingly, it is difficult to input quantitative amorphous fibers, and it is difficult to manage the facilities of the steel fiber input device There is this.

An object of the present invention is to provide an improved amorphous fiber input device so that entanglement of amorphous fibers can be prevented, and amorphous fibers of an appropriate length are adopted and measured in an appropriate amount.

An amorphous fiber input device according to an embodiment of the present invention includes: a storage hopper for storing amorphous fibers for increasing strength by being added to a concrete mixture; A porous network installed in at least one inside of the storage hopper and provided with a plurality of holes to allow amorphous fibers shorter than the holes to fall; A vibration generator provided in the storage hopper to impart vibration so that the amorphous fiber passes through the porous network; An opening/closing part provided under the storage hopper and controlling opening and closing according to the weight of the amorphous fiber passing through the porous network; And a magnetic force generating unit provided below the opening and closing unit and generating an attractive force for falling of the amorphous fiber.

In addition, the opening/closing unit may include a door provided to be opened and closed with respect to the lower portion of the storage hopper, and a load measuring unit for measuring the weight of the amorphous fiber stacked on the door.

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In addition, it may further include a conveying unit provided below the storage hopper and connected to supply the amorphous fiber passing through the opening and closing unit to the concrete mixture mixing facility.

In addition, the transfer unit may include at least one conveyor belt.

In addition, the vibration generating unit may include an actuator connected to at least one side of the storage hopper.

In addition, the vibration generator may include at least one shock generator that contacts the porous network and generates vibration by impact.

According to an embodiment of the present invention, entanglement of amorphous fibers can be prevented, and amorphous fibers of an appropriate length can be adopted and metered and injected in an appropriate amount, thereby contributing to improvement of strength and quality of a concrete structure.

1 is a perspective view showing an amorphous fiber input device according to an embodiment of the present invention.
Figure 2 is a block diagram showing an amorphous fiber input device according to an embodiment of the present invention.
3 and 4 are cross-sectional views of a state in which amorphous fibers are introduced using an amorphous fiber input device according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Embodiments of the present invention may be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shapes and sizes of elements in the drawings may be exaggerated for clearer description, and elements indicated by the same reference numerals in the drawings are the same elements.

1 is a perspective view showing an amorphous fiber input device according to an embodiment of the present invention, and Figure 2 is a configuration diagram showing an amorphous fiber input device according to an embodiment of the present invention. In addition, FIGS. 3 and 4 are cross-sectional views of a state in which amorphous fibers are injected using an amorphous fiber injection device according to an embodiment of the present invention.

Referring to FIGS. 1 to 4, the amorphous fiber input device 10 according to the present embodiment is a device for injecting amorphous fiber in an appropriate amount in order to increase the strength of the mixed concrete by mixing with a concrete mixture.

The amorphous fiber input device 10 may include a storage hopper 20 in which the amorphous fiber is stored. The upper portion of the storage hopper 20 is opened so that amorphous fibers can be supplied, and the upper periphery of the storage hopper 20 may be disposed inclined inward so that the amorphous fibers are introduced into the inner space of the storage hopper 20.

In addition, at least one porous network 30 may be installed inside the storage hopper 20. A number of holes may be formed in the porous network 30. As an example, the hole 32 may be provided as a space between a plurality of wires arranged in a grid form. For example, the porous network 30 may be provided in the form of a sieve or mesh.

Amorphous fibers that are not entangled with each other may fall through the holes 32 of the porous network 30.

In this embodiment, three porous nets 30 may be installed in each height in the storage hopper 20. That is, in this embodiment, a first porous network 30a, a second porous network 30b, and a third porous network 30c may be sequentially installed in the storage hopper 20, and amorphous fibers are each In the process of passing through the porous network 30, only amorphous fibers that are not tangled may be selectively dropped.

In addition, a vibration generating unit 40 for imparting vibration so that the amorphous fiber passes through the porous network 30 may be provided at one side of the storage hopper 20.

In this embodiment, the vibration generating unit 40 may generate vibration in the storage hopper 20, and accordingly, the hole of the porous network 30 is formed in the process of shaking the amorphous fiber located above the porous network 30 by vibration. You can fall through it.

In this embodiment, the vibration generating unit 40 may include an actuator 42 connected to one side of the storage hopper 20. The actuator 42 may have the other end installed directly on the bottom surface of the working area, and may be installed on one side of the frame 12 supporting the storage hopper 20.

Here, the actuator 42 may include a cylinder in which the actuating rod 42a and the actuating rod 42a are telescopically installed. In addition, a pump for adjusting the hydraulic pressure in the cylinder may be provided at one side of the cylinder, and the operating rod 42a expands and contracts by the operating pressure of the pump, thereby vibrating the storage hopper 20.

In addition, in the present embodiment, an opening and closing part 50 that is controlled to open and close according to the weight of the amorphous fiber passing through the porous network 30 may be provided under the storage hopper 20.

In this embodiment, the opening/closing part 50 may include a door 52 provided to be opened and closed with respect to the lower portion of the storage hopper 20, and the weight of the amorphous fiber stacked on the door 52 is measured. A load measuring unit (not shown) may be provided to perform.

The load measurement unit may include a load cell, and may measure the weight of the amorphous fiber by using a voltage difference generated according to the weight of the amorphous fiber stacked on the door 52.

In addition, the door 52 may be provided in the form of at least one plate, and may be opened and closed rotatably through a hinge member or the like under the storage hopper 20.

Here, the open shape of the door 52 is not limited, and as shown in FIG. 4, the door 52 may be opened and closed while moving in a horizontal direction, and for this purpose, the door 52 is moved in a horizontal direction. A door actuator 54 for can be connected.

In addition, a magnetic force generating unit 56 for generating an attractive force for the fall of the amorphous fiber may be further provided under the opening and closing unit 50.

The magnetic force generating unit 56 may generate an attractive force so that the amorphous fibers fall through the porous network 30 in cooperation with the vibration of the vibration unit. Here, the magnetic force generating unit 56 may include an electromagnet, and when power is supplied to the electromagnet, magnetic force may be generated. When the amorphous fiber is discharged, the supply of power is cut off so that the amorphous fiber is easily discharged to the bottom can do.

To this end, the present embodiment is a control unit that controls the operation of the door actuator 54 by determining the magnetic force generation of the magnetic force generating unit 56, opening and closing of the door 52, and the weight of the amorphous fiber stacked on the door 52. (60) may be provided.

In addition, in this embodiment, the storage hopper 20 is installed on the top of the concrete mixing facility to directly supply amorphous fibers to the concrete mixing facility, or connects to supply a mixture of concrete, gravel, sand, etc. to the concrete mixing facility. It may further include a transfer unit 70.

In this embodiment, the transfer unit 70 may include at least one conveyor belt.

For example, a first conveyor belt 72 may be installed under the storage hopper 20. In addition, the first conveyor belt 72 may be connected to a second conveyor belt 74 that supplies a mixture of concrete, gravel, and sand to a concrete mixing facility.

The driving of the first conveyor belt may be controlled by the control unit 60, and preferably, the first conveyor belt may be controlled to rotate only when the door 52 is open.

Meanwhile, in the present embodiment, the vibration unit is described as generating vibration while the storage hopper 20 entirely flows by the actuator 42, but the configuration of the vibration unit is not limited and may be modified in various forms.

As an example, the vibration unit may include a shock generator that contacts the porous network 30 or the storage hopper 20 and generates vibration by impact, and a structure for generating vibration in various ways in addition to the shock generator may be applied. .

Looking at the operation of the amorphous fiber input device 10 configured as described above is as follows.

First, amorphous fibers are supplied through the upper opening of the storage hopper 20. At this time, the amorphous fiber supplied to the upper portion of the storage hopper 20 falls through the hole in the process of passing through the porous network 30 installed inside the storage hopper 20.

At this time, the amorphous fiber stored in the storage hopper 20 may selectively drop amorphous fibers that are not entangled in the process of passing through the first porous network 30a, the second porous network 30b, and the third porous network 30c. have. Dropping of amorphous fibers may be promoted by vibration generated in the storage hopper 20, and fall may be promoted by magnetic force generated in the magnetic force generating unit 56 in addition to the drop of the storage hopper 20.

Meanwhile, the amorphous fiber that has passed through the third porous network 30 is stacked on the door 52 of the opening and closing part 50.

At this time, the door 52 measures the weight of the stacked amorphous fibers, and when these amorphous fibers reach the set weight, the door 52 is opened while the power supplied to the magnetic force generating unit 56 is cut off. Allow the fibers to drain to the bottom.

The amorphous fibers discharged in this way are supplied to the transfer unit 70 or directly to the concrete mixing facility.

The specification of the present invention, the present embodiment, and the accompanying drawings are merely illustrative of some of the technical ideas included in the present invention, and those skilled in the art within the scope of the technical ideas included in the specification and drawings of the present invention It will be apparent that both modified examples and specific embodiments that can be easily inferred are included in the scope of the present invention.

10: amorphous fiber input device 20: storage hopper
30: porous net 32: hole
40: vibration generating unit 42: actuator
50: opening 52: door
54: door actuator 56: magnetic force generation unit
60: control unit 70: transfer unit

Claims (7)

A storage hopper for storing amorphous fibers for increasing strength by being added to the concrete mixture;
A porous network installed in at least one inside of the storage hopper and provided with a plurality of holes to allow amorphous fibers shorter than the holes to fall;
A vibration generator provided in the storage hopper to impart vibration so that the amorphous fiber passes through the porous network;
An opening/closing part provided under the storage hopper and controlling opening and closing according to the weight of the amorphous fiber passing through the porous network; And,
A magnetic force generating unit provided below the opening and closing unit and generating an attractive force for falling of the amorphous fiber;
Amorphous fiber input device comprising a. The method according to claim 1,
The opening and closing part includes a door provided to be opened and closed with respect to the lower portion of the storage hopper,
An amorphous fiber input device comprising a load measuring unit for measuring the weight of the amorphous fiber stacked on the door. delete The method according to claim 1,
An amorphous fiber input device further comprising a transfer unit provided under the storage hopper and connected to supply the amorphous fiber passing through the opening and closing unit to the concrete mixture mixing facility. The method of claim 4,
The transfer unit is an amorphous fiber input device comprising at least one conveyor belt. The method according to any one of claims 1 to 2 and 4 to 5,
The vibration generating unit is an amorphous fiber input device including an actuator connected to at least one side of the storage hopper. The method according to any one of claims 1 to 2 and 4 to 5,
The vibration generating unit is in contact with the porous network, and an amorphous fiber input device including at least one shock generator generating vibration by an impact.

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