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Cold extrusion combination type reducing reinforcing steel bar connection device and method

A connection equipment and composite technology, which is applied in the field of steel bar connection, can solve the problems of manpower occupation and low efficiency of connecting steel cages, and achieve the effects of improving efficiency, saving manpower, and ensuring connection strength

Inactive Publication Date: 2019-09-06
高旻
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a cold-extrusion compound type reducing steel bar connection equipment to solve the problems of low efficiency and manpower occupation for connecting steel cages

Method used

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  • Cold extrusion combination type reducing reinforcing steel bar connection device and method
  • Cold extrusion combination type reducing reinforcing steel bar connection device and method
  • Cold extrusion combination type reducing reinforcing steel bar connection device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A rebar 4 connection device such as figure 1 As shown, it includes a bracket, an extrusion assembly and a connecting workpiece 6; the support is provided with a steel bar fixing structure, the extrusion assembly is installed on the bracket, and the extrusion assembly includes a first extrusion tooling 7, a second extrusion Press tooling 5 and extruding device; The connecting workpiece 6 is placed on the second extrusion tooling 5, and the first extrusion tooling 7 and the second extrusion tooling 5 are all provided with through holes for the steel bar 4 to pass through. The connection workpiece 6 is a hollow structure with openings at both ends, and the inner wall of the connection workpiece 6 is provided with an internal thread: the first extrusion tool 7 and the second extrusion tool 5 cooperate to extrude the connection workpiece 6 through an extrusion device, A balance structure is provided in the middle of the connecting workpiece 6 .

[0030] In order to prevent ...

Embodiment 2

[0035] Improvements are made on the basis of Example 1. In order to avoid excessive deformation of the connecting workpiece 6 after extrusion and affect the connection effect of the steel bar 4, the connecting workpiece 6 includes an outer sleeve 8 and an inner sleeve 9, and the outer sleeve 8 and the inner sleeve 9 Both are hollow structures, the outer sleeve 8 is set on the outside of the inner sleeve 9, the inner wall of the inner sleeve 9 is provided with internal threads, and the deformation direction of the inner sleeve 9 is restricted by setting the outer sleeve 8, so that the connecting workpiece 6 is subjected to After being squeezed, the inner sleeve 9 is mainly deformed inward, so that the inner thread engages with the steel bars 4 so as to connect and fix the two steel bars 4 .

[0036]Specifically, the balance structure includes a screw, and the middle part of the outer sleeve 8 and the inner sleeve 9 is provided with a matching opening, and the opening communicate...

Embodiment 3

[0038] Improvements are made on the basis of Example 2. Further, in order to facilitate the extrusion of the connecting workpiece 6, the connecting workpiece 6 includes a positioning sleeve 10, and the middle part of the positioning sleeve 10 is provided with a through hole for the steel bar 4 to pass through. The positioning sleeve 10 is threadedly matched with the outer sleeve 8, and the positioning sleeve 10 is installed on the end of the outer sleeve 8 away from the second extruding tool 5.

[0039] Further, in order to fix the position of the inner sleeve 9 and ensure that the inner thread extrudes the steel bar 4 when the inner sleeve 9 is deformed, a step is provided on the side of the outer sleeve 8 close to the second extrusion tooling 5, and one end of the inner sleeve 9 Against the step, the other end of the inner sleeve 9 abuts on the positioning sleeve 10 , and the outer wall of the inner sleeve 9 is attached to the inner wall of the outer sleeve 8 .

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Abstract

The invention provides a cold extrusion combination type reducing reinforcing steel bar connection device and method and relates to the field of reinforcing steel bar connection. The cold extrusion combination type reducing reinforcing steel bar connection device comprises a support, an extrusion assembly and a connection workpiece. The support is provided with a reinforcing steel bar fixing structure. The extrusion assembly is installed on the support. The connection workpiece is arranged on a second extrusion tool. The first extrusion tool and the second extrusion tool are both provided withthrough holes allowing the reinforcing steel bar to pass through. The connection workpiece is of a hollow structure with the two ends being open. The inner wall of the connection workpiece is provided with an inner thread. The first extrusion tool and the second extrusion tool cooperate to extrude the connection workpiece through an extrusion device. A balance structure is arranged in the middleof the connection workpiece. According to the cold extrusion combination type reducing reinforcing steel bar connection device, the extrusion assembly and the connection workpiece cooperate to extrudethe two ends of the connection workpiece, since the inner portion of connection workpiece is provided with internal threads, in the compression process of the connection workpiece, the internal threads protrude to a higher extent, so that the internal thread and longitudinal and transverse ribs of the reinforcing steel bar are mutually engaged so as to achieve the connection purpose. Meanwhile, by the adoption of the cold extrusion combination type reducing reinforcing steel bar connection method, one or two people can complete operation, and therefore the manpower and material resources aregreatly saved.

Description

technical field [0001] The invention belongs to the field of steel bar connection, and in particular relates to a cold-extrusion compound type reducing diameter steel bar connection device and a connection method. Background technique [0002] During the construction process, it is usually necessary to manufacture pile foundation reinforcement cages on site, that is, to connect multiple reinforcement cages to form pile foundation reinforcement cages that meet the length requirements. However, due to the limitation of extrusion equipment, the connection of steel cages is mostly connected by individual steel bars one by one, and then multiple turns of steel wire are wound around the steel bars to connect and fix them. [0003] The traditional cold extruded sleeve radial connection uses an extruder to extrude the connecting sleeve in the radial direction, causing the sleeve to deform and interlock with the longitudinal and horizontal ribs of the steel bar to achieve the purpose...

Claims

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Application Information

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IPC IPC(8): B21F15/06B21F27/20
CPCB21F15/06B21F27/20
Inventor 高旻
Owner 高旻
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