JPH05192731A - Manufacturing device of reinforcing bar cage for field placing concrete pile - Google Patents

Abstract

PURPOSE:To mechanize the manufacture of the reinforcing bar cage for the field placing concrete pile which is conventionally operated with hand work. CONSTITUTION:A hanging down holding part 23 of a hoop bar ring and a main bar holding part 24 intermittently rotating are extended from an up and down moving body 22 at both ends of a long size base part, this up and down moving body 22 is attached to body 21 which moves along the long size base part, a main bar stretching to the main bar holding part 24 is welded with a reinforcing bar ring and the reinforcing bar ring is positioned and fixed, then successively the main bar is welded at the outer circumference of reinforcing bar ring. After the welding of main bar is finished, a semifinished work is elevated with the up and down moving body 22 and a center jack 3, and the reinforcing bar cage is manufactured by fitting outside the hoop reinforcing bar ring which is preliminarily hung down with the hanging down holding part 23 at the outer circumference of main bar and welding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced basket manufacturing apparatus used for cast-in-place concrete piles.

[0002]

2. Description of the Related Art When constructing a building, an underground pile called a cast-in-place concrete pile is formed in the lower ground, and the building is constructed integrally with this pile. In this cast-in-place concrete pile, a solid hole is excavated by muddy water excavation, a cylindrical reinforcing steel cage is inserted into the solid hole, and then concrete is placed.

This rebar cage has a reinforcing bar ring a,
The reinforcing bar ring a is composed of a main bar b and a hoop bar ring c, and the manufacturing means thereof is to weld two main bars b to the outer circumference of a plurality of reinforcing bar rings a standing and held at appropriate intervals. Are fixed (state A: see FIG. 6), and then the main reinforcement b is welded to the entire outer circumference of the reinforcing bar ring a at equal intervals to bring the whole into a cylindrical state B (see FIG. 7). Further, the hoop muscle ring c is fitted on the outside of the main bar b and welded to the main bar b (state C: see FIG. 8), and all the manufacturing work is performed manually at the construction site. It was what was there.

[0004]

The standard of the rebar cage is fixed, and the size, length, and welding position of the reinforcing bar ring a, the main bar b, and the hoop bar c are appropriate dimensions based on the standard. In the above-mentioned manual production, it is necessary to measure and mark the welding position of each reinforcing bar, and to hold the material to be welded during the welding work, which is very complicated. . Therefore, the present invention does not provide an apparatus for easily and efficiently manufacturing the rebar cage.

[0005]

A manufacturing apparatus for a reinforced basket for cast-in-place concrete piles according to the present invention is provided with a long base portion longer than the length of the reinforced basket to be produced and arranged at both ends of the long base portion. It consists of an operating part that moves laterally along the long base part and a center jack part arranged in the center of the long base part.
An up-and-down moving body is provided in the operating part, and a suspension holding portion of a hoop muscle ring forming a rebar basket is projected from the up-and-down moving body, and a hook portion of a main bar constituting a rebar basket is provided on a circular outer peripheral portion. The present invention is characterized in that the main bar holding portion which is provided and intermittently rotates is provided so as to further project from the suspension holding portion.

[0006]

[Operation] A predetermined number of hoop muscle rings are suspended and held on the suspension holder, placed on a long base, and two main bars are provided in parallel at appropriate positions on the hooking section to obtain the main bars. When the reinforcing bar ring is placed and held on top of it, the predetermined position is welded to position and fix the reinforcing bar ring, and then the main bar is successively laid over in response to intermittent rotation of the main bar holding section. At the same time, the reinforcing bar ring and the main bar are welded to form the entire cylinder. After that, the moving body is raised, and at the same time, the center jack is operated to lift the cylindrical object from the long base portion, and the hoop muscle ring is sequentially fitted onto the predetermined position in the cylindrical condition and welded, and When the basket is produced and the operating part is retracted (towards both ends of the long base), the produced basket is removed from the manufacturing equipment, so it is used as a basket for cast-in-place concrete piles. .

[0007]

EXAMPLES Next, examples of the present invention will be described. The manufacturing apparatus according to the present invention includes a long base portion 1, an operating portion 2, and a center jack 3. The long base portion 1 is at least longer than the length of a reinforcing bar cage C to be produced, and two facing corners are provided. The frame 11 and the top of the square frame are connected to each other, and the main frame base 12 is made to project to one side of the square frame. The operating parts 2 are provided symmetrically on both ends of the long base part.
1, vertical moving body 22, suspension holding portion 2 of hoop muscle ring c
3, main bar holder 24, the main body 21 is the rail 1
3 are provided so as to be movable along the long base portion 1 by attaching wheels 211 that travel on the top and bottom, and a vertically moving body 22 and a drive mechanism (hydraulic cylinder) 212 for the vertically moving body 22 are additionally provided. The up-and-down moving body 22 has a rotation drive mechanism built-in,
The suspension holding portion 23 and the main reinforcement holding portion 24 of the hoop muscle ring c are provided on the surface facing the other operating portion 2, and the suspension holding portion 23 is arranged concentrically with the rebar cage C to be formed. The main bar holding portion 24 is the hanging holding portion 23.
Reinforcing bar cage C that further protrudes and does not produce at the tip
The main bar retaining portion 241 corresponding to the position of the main bar b is provided in a ring shape, and intermittent rotation is performed corresponding to the welding interval of the main bar b.

Thus, in order to produce a rebar cage using the above-mentioned manufacturing apparatus, a predetermined number of hoop muscle rings c are suspended and held in advance.
3 is suspended and held, the main bars b are juxtaposed on the main bar base 12, the first two bars are passed to the main bar hooking portion 241, and the reinforcing bar ring a is held at a predetermined position by hand on the main bars b. While welding to the two main bars b, the necessary reinforcing bar ring a
All of the above are welded to the two main bars to position and fix the reinforcing bar ring a (state A: see FIG. 6). Next, the main bar holding portion 24
Is intermittently rotated, the main bar b to be welded is brought along the outer periphery of the fixed reinforcing bar ring a, and the contact is welded. Further, the main bar b is supplied and welded at the same time as the intermittent rotation of the main bar holding portion 24 such that the next main bar b is welded. Form body B (see FIG. 7).

When the cylindrical body B is formed, the center jack 3 and the vertical moving body 22 are raised and the cylindrical body B is lifted. In this state, the hoop muscle ring c held by the suspension holding portion 23 is sequentially fitted onto the tubular body B to be positioned at a predetermined position, and the hoop muscle ring c is welded to the main muscle b so that all the hoop muscle rings c The product C is completed when the welding of No. 1 is completed, and the center jack 3 and the vertical moving body are lowered to place the product C on the long base portion 1 and the operating portion 2 is retracted to re-install the main bar b and the main bar. It is used as a reinforced basket of cast-in-place concrete pile by detaching the holding part 24 and rolling it from the long base part 1 as it is to remove it from the manufacturing device or lifting the product C with a crane or the like and removing it from the manufacturing device. To be used for.

The size and jig size of each part of the device of the present invention can be changed in accordance with the size of the rebar cage to be produced. For example, the main bar holding part 24 is naturally replaced. Further, the device of the present invention is installed at a construction site to produce a rebar cage, and it is convenient for transportation if the structure of the long base part is divided and the parts are easily assembled.

[0011]

INDUSTRIAL APPLICABILITY As described above, the present invention is a manufacturing apparatus for a reinforced basket used for cast-in-place concrete piles, and improves the manufacturing efficiency by mechanizing the manufacturing of the reinforced basket that has conventionally been performed entirely by hand. It is a thing.

[Brief description of drawings]

FIG. 1 is an overall front view of an apparatus according to an embodiment of the present invention.

FIG. 2 is a central vertical sectional view of FIG.

FIG. 3 is an explanatory diagram of an operation of an operating portion (fixing of a reinforcing bar ring).

FIG. 4 is an explanatory diagram of the operation of the operating portion (welding of the main bar).

FIG. 5 is an explanatory diagram of the operation of the operating portion (welding of the hoop muscle ring).

FIG. 6 is an explanatory view of the iron cage during manufacturing (fixing the reinforcing bar ring).

FIG. 7 is an explanatory view during the manufacturing of the iron basket (welding of the main bar).

FIG. 8 is a perspective view of a product.

[Explanation of symbols]

 1 Long base part 11 Square frame 12 Main bar base 13 Rail 2 Operating part 21 Main body 22 Vertical moving body 23 Suspension holding part 24 Main bar holding part 3 Center jack

Claims (1)

[Claims] 1. A long base portion which is longer than the length of a rebar basket to be produced, an operating portion which is arranged at both ends of the long base portion and moves laterally along the long base portion, and a central portion of the long base portion. And a center jack part disposed on the upper and lower moving bodies, and a vertically movable body is provided in the operating part, and a suspension holding portion of a hoop muscle ring forming a rebar basket is projected from the vertically movable body, and a rebar is provided on a circular outer peripheral portion. An apparatus for manufacturing a reinforcing bar basket for cast-in-place concrete piles, characterized in that a main bar retaining part that constitutes a basket is provided, and a main bar holding part that makes intermittent rotation is provided so as to further project from the suspension holding part.