JPH05337727A - Cutting device for manufacturing steel fiber member for concrete reinforcement - Google Patents

Abstract

PURPOSE: To perform the operation of feeding, fixing, cutting, working and carrying out a metal wire rod group not intermittently but continuously in a cutting device for manufacturing a steel fiber member for concrete reinforcement, which is formed by connecting plural steel fibers to each other in the direction intersecting perpendicularly to the longitudinal direction like a straight line by a water soluble adhesive, the steel fiber ends thereof being shaped like a hook. CONSTITUTION: This cutting device for manufacturing a steel fiber member for concrete reinforcement includes a pair of wheels 1 where plural cutting working jigs 2 are continuously disposed at intervals of the length of the steel fiber member on the circumference, wherein the cutting jig has a width larger than the width of the steel fiber member, and includes press parts 2-a, 2-b having a height and a curvature for forming a hook shape, and a cutting tooth 2-c for performing cutting at a fixed distance from the press parts. The cutting jigs 2 of both wheels 1 are arranged to mesh each other like a gear at the tip of the cutting tooth with the rotation of the wheels 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete-reinforcing steel fiber member which is joined in a straight line in a direction perpendicular to the longitudinal direction with a water-soluble adhesive before being mixed with a concrete material. The present invention relates to a cutting device for manufacturing.

[0002]

2. Description of the Related Art By uniformly dispersing steel fibers for concrete reinforcement in concrete, it is possible to improve and improve mechanical strength such as bending strength, bending toughness and crackability of concrete. Demand is increasing.

Conventionally, the process of dispersing when being added to concrete during kneading is a process of mixing and dispersing into concrete as a steel fiber member, and subsequently, an adhesive agent that bonds steel fibers to each other is being mixed. A steel fiber member in which a plurality of steel fibers are bonded to each other by a water-soluble adhesive is widely used, which undergoes a two-stage dispersion including a process of reacting with water of concrete and dissolving to disperse a single steel fiber. Japanese Examined Sho 56
-18553 and Japanese Patent Publication No. 60-9976).

Such a steel fiber member for concrete reinforcement is
As shown in FIG. 4, a plurality of steel fibers are linearly bonded to each other in a straight line in a direction orthogonal to the longitudinal direction with a water-soluble adhesive, and in order to enhance the reinforcing effect in concrete, Instead of being straight, it has a straight central portion and meandering ends, ie it has a hook shape.

On the other hand, conventionally, a method of cutting a metal wire rod group after arranging a number of metal wire rods in parallel and joining the wire rods and processing them is known as a method of manufacturing a stapler staple, in which cutting and processing are performed simultaneously. It has been (Sho 57
-72741 publication).

[0006]

However, in this method, a group of metal wire rods in which a plurality of metal wire rods are joined in a straight line in a parallel state are fed into a cutting device, stopped, and then cut. Since the work of taking out the staples from the cutting device is performed, the operations of the respective processes cannot be performed intermittently and simultaneously, and there is a problem that productivity cannot be improved. In addition, the above-mentioned feeding stop, wire pressing, cutting work, and stapling-out operations each require a device and a control device that operates in conjunction with them.
It has the drawback of requiring expensive equipment.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, and to feed, fix, and bond the joined metal wire rods
It is an object of the present invention to provide a cutting and processing device for manufacturing a steel fiber member for concrete reinforcement, which can perform cutting, processing, and unloading operations continuously instead of intermittently.

[0008]

[Means for Solving the Problems] To solve the above problems
In the present invention, a water-soluble adhesive is used to
Direction and the direction perpendicular to each other
In addition, concrete supplements with steel fiber ends having hook shapes
In the cutting and processing equipment for the production of heavy-duty steel fiber members,
A plurality of cutting jigs on the circumference of the steel fiber member
Equipped with a pair of wheels continuously arranged at length intervals
The cutting jig has a width greater than the width of the steel fiber member.
And the height for shaping the hook shape
A press part having a curvature and a constant distance from the press part
Both wheels have cutting teeth for cutting with
The cutting jig on the cutting edge of the cutting teeth moves as the wheel rotates.
It is characterized in that it is arranged so that it meshes like a gear at the part
It is what

Here, the cutting jig can be detached from the wheel, and the wheel shaft can be moved and adjusted so that the end portion of the steel fiber member is set to have an arbitrary hook shape. You can Needless to say, the hook shape can be changed by changing the height and the curvature for performing the molding.

[0010]

By rotating a pair of wheels equipped with the above-mentioned cutting jig and feeding the metal wire rods aligned in parallel and mutually coupled to the place where the cutting jig meshes like a gear, The metal wire group is gripped and fixed to the press parts of both cutting jigs. Then, the metal wire rod group is cut along with the rotation of the wheel, and at the same time, the bending plastic working of the end portions of the metal wire rod group located before and after the cut portion is performed, and by the subsequent rotation of the wheel, the cut metal member is cut. Carry out.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail with reference to the drawings with reference to embodiments. FIG. 1 shows a specific example of a wheel provided with a cutting jig of the cutting apparatus of the present invention. The diameter of the wheel 1 is 390 mm, and the cutting jig 2 is installed such that the positions of the press portion and the cutting tooth (cutter portion) are adjacent to each other, and they are fixed by the jig holder 3 and screwed. It is fixed to the wheel at 4. The outer peripheral portion of the jig holder 3 has a circumference of the same wheel diameter as the adjacent jig pressing portion.

FIG. 2 shows the cutting jig 2 for cutting and processing the steel fiber member simultaneously in more detail. As can be seen from this figure, the cutting jig 2 has a portion 2 which has a curvature and a height for hook-forming, and which bears the concave portion of the press.
-A, a portion 2-b having a curvature for hook-forming, which bears a convex portion of the press, and a cutter portion 2-c for cutting continuously at a predetermined distance from the press portion.

The cutting jigs are arranged at equal intervals on the circumference of the wheel, and in this embodiment, they are divided into 10 equal parts, that is, 36 pieces.
It is installed at intervals.

FIG. 3 shows an operation of cutting a metal wire rod group using the cutting apparatus of the present invention in which a pair of the above-mentioned wheels are combined. In this figure, first, a metal wire rod group 5 in which a plurality of metal wire rods are connected in a straight line in a direction orthogonal to the longitudinal direction with a water-soluble adhesive in a mutually parallel state.
Is fed to a position where the jigs 2 of the pair of wheels 1 mesh with each other.

In FIG. 3, the jig 2 of the upper wheel 1 is shown.
2-a that bears the recess of the wheel and the jig 2 of the wheel 1 below
The portion 2-b which bears the convex portion of the metal wire group is combined with each other, and both ends of the entering portion 5-a and the exiting portion 5-b of the metal wire group are plastically processed into a hook shape and simultaneously cut.

Subsequently, by the rotation of the wheel, the protruding portion 5-b of the metal wire group is carried out of the wheel, and at the same time, the entering portion 5-a of the metal wire group is moved to the upper and lower jig holders 3. It is gripped and delivered. By repeating the same operation by rotating the wheel, it is possible to continuously and stably manufacture the steel fiber member for concrete reinforcement having the hook shape at both ends as shown in FIG.

[0017]

As described above, in the cutting apparatus for producing a steel fiber member for concrete reinforcement of the present invention, a plurality of metal wire rods are made of water-soluble adhesive and are parallel to each other in a direction orthogonal to the longitudinal direction. Since it is possible to continuously perform the feeding, fixing, cutting, processing, and unloading operations of the metal wire rods that are connected in a straight line in a state without interruption, a steel fiber member for concrete reinforcement having high productivity can be provided. It can be obtained and is industrially useful.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a wheel of an example device of the present invention.

FIG. 2 is a cross-sectional view of a cutting jig attached to the outer periphery of the wheel of the device of the present invention.

FIG. 3 is a partial cross-sectional view showing a state in which the cutting jigs of the pair of wheels of the device of the present invention are engaged with each other to cut and process the metal wire rod group.

FIG. 4 is a perspective view of a steel fiber member for concrete reinforcement manufactured by the apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheel 2 Cutting jig 2-a The part which bears the concave part of the press 2-b The part which bears the convex part of the press 2-c Cutting teeth (cutter part) 3 Jig holder 4 Screw 5 Metal wire group 5-a Metal wire rod Group entry part 5-b Metal wire rod entry part

Claims (1)

[Claims] 1. A steel fiber member for concrete reinforcement, wherein a plurality of steel fibers are linearly bonded with a water-soluble adhesive in a state parallel to each other in a direction orthogonal to the longitudinal direction and the steel fiber ends have hook shapes. In the cutting device for manufacturing of, a plurality of cutting jigs are provided on a circumference of each of the steel fiber members, and the cutting jig has a pair of wheels continuously arranged at length intervals of the steel fiber member. A press portion having a width equal to or larger than the width of the steel fiber member, and having a height and a curvature for performing the hook-shaped molding, and a cutting tooth for cutting at a constant distance from the press portion. A cutting device for manufacturing a steel fiber member for concrete reinforcement, characterized in that the cutting jigs of both wheels are arranged so as to mesh with each other in a gear shape at the tips of the cutting teeth as the wheels rotate.