Straight thread rebar end trimmer

Abstract

The invention discloses a straight thread steel bar end leveler. The straight thread steel bar end leveler comprises a bottom plate. The assembling face of the bottom plate is provided with a stop block and a fastener. The fastener is matched with the stop block to guarantee that the straight thread steel bar end leveler is driven by a straight thread die head threading machine head to jointly do the rotation movement. The operation face, opposite to the assembling face, on the bottom plate is provided with a hard alloy cutter assembly used for cutting a straight thread steel bar end. Positioning rings are buckled on the hard alloy cutter assembly. The positioning rings and the bottom plate are fixedly installed on the straight thread die head threading machine head through positioning pieces. Each positioning ring is provided with a guide-in port enabling the straight thread steel bar end to stretch into the hard alloy cutter assembly to achieve cutting. According to the straight thread steel bar end leveler, the straight thread steel bar end can be efficiently leveled, the cut section of the straight thread steel bar end is flat, the bending and horseshoe phenomena are avoided, the section is perpendicular to the axis of a straight thread steel bar, and the requirement of related steel bar regulations is met.

Description

technical field [0001] The invention relates to a straight thread steel bar end trimmer, which belongs to the technical field of mechanical processing. Background technique [0002] Construction projects require a large number of steel bars, and the connection of steel bars is the key point of quality control in sub-projects in project construction, and it is also a weak point of quality management. In actual operation, in the connection of the main stressed steel bars, usually the steel bars with a diameter of 16mm to 40mm are mechanically connected with the steel bar straight thread. The specific operation process is to roll out a certain length of screw thread at the end of the steel bar with special mechanical equipment (Thread), and then use a special sleeve with the same wire diameter and pitch to connect the two steel bars together through a special board, so as to achieve the purpose of straight thread connection of the steel bars and achieve the allowable strength o...

AI Technical Summary

Problems solved by technology

The traditional method of cutting steel bars is to use a steel bar cutter, but a large number of actual engineering practices have proved that when the blade of the steel bar cutter cuts the steel bar, a horseshoe-shaped inclined surface will appear on the end section of the steel bar, which does not comply with the relevant regulations of the steel bar (such as "Reinforcement Rib Stripping and Rolling") According to the "Technical Regulations for Straightening Threaded Connections (JGJ-107-2010)"), "the end surface of the steel bar cutout should be perpendicular to the axis of the steel bar, and any bending or horseshoe phenomenon at the end should be cut off, and gas cutting is not allowed".

[0004] At present, in the industry, for straight thread steel bar processing blanking, the commonly used and more mature steel bar cutting method is to cut with a toothless saw of a resin grinding wheel, but it can be concluded from the actual implementation that the toothless saw of a resin grinding wheel The saw can only cut 15 to 18 steel bars with a diameter of 32mm, and it takes 3 to 4 minutes to cut each steel bar. It can be seen that the cutting efficiency of this method is extremely low, the consumables are huge, and it will cause environmental and noise pollution. big security risk

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