Building reserved steel bar cut off device

Abstract

The invention relates to a building reserved steel bar cut off device, and discloses a device which sleeves a reserved steel bar and cuts off the reserved steel bar through combined action of cuttingand pull up force of a cutter. The device is characterized in that multiple sliding grooves are formed in the outer side of a fixed tube at equal intervals, a connected sleeve sleeves one end of the fixed tube, multiple guide blocks are arranged on the inner wall of the connecting sleeve at equal intervals and each arranged at one end of the corresponding sliding groove, the two ends of a gear sleeve are arranged on the connecting sleeve through fixed bearings, a guide groove is formed in the outer side of the gear sleeve and shaped like an arc, the height is decreased gradually from one end to another end, a rotary disc sleeves one end of the gear sleeve, a rotating groove is formed in the bottom of the rotary disc, a cutter head is arranged at one end of the connecting sleeve and arranged in the rotating groove, four through holes are formed in the cutter head, four sliding plates are arranged, one end of each sliding plate is arranged in a corresponding wave peak of the rotating groove, a sliding block is arranged at one end of each sliding plate, and the cut off efficiency of the reserved steel bar can be effectively improved.

Description

technical field [0001] The invention relates to a device for cutting reserved steel bars for buildings, and relates to a device for cutting reserved steel bars used in building construction, belonging to the field of building construction. In particular, it relates to a device which is set on the reserved steel bar and cuts off the reserved steel bar through the combined action of the cutting of the cutter and the upward pulling force. Background technique [0002] At present, in the field of building construction, it is often necessary to use steel bars to strengthen the strength of the building. Usually, during the construction of the main structure, the construction workers will pre-embed the secondary structural steel bars that need to be reserved in advance, so as to prepare the required steel bars in advance for the subsequent construction process. The steel bars are set well, because the length of the reserved steel bars required for the follow-up operation cannot be ...

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Problems solved by technology

[0002] At present, in the field of building construction, it is often necessary to use steel bars to strengthen the strength of the building. Usually, during the construction of the main structure, the construction workers will pre-embed the secondary structural steel bars that need to be reserved in advance, so as to prepare the required steel bars in advance for the subsequent construction process. The steel bars are set well, because the length of the reserved steel bars required for the follow-up operation cannot be accurately determined, in order to ensure the use requirements, the length of the reserved steel bars is usually longer, and the steel bars are cut according to the follow-up needs. The traditional way of cutting steel bars is to operate The personnel perform the cutting operation through the vise, clamp the jaws at the predetermined cutting position, and use both hands to cut off the steel bar. During the operation, there is a high requirement for the operator's arm strength. Long-term operation will consume a lot of physical strength for the operator. When the operator When physical exertion is high, the arm cannot control the cut-off position of the vise, resulting in a deviation in the cut-off length, which affects subsequent construction operations. When cutting through the vise, the stress point of the steel bar is at the contact point between the jaws and the steel bar, and the steel bar is stressed. The force is not uniform, causing the cross-sectional shape of the steel bar to be irregular, which will affect the installation of subsequent construction parts. The existing steel bar cutting device, such as the public number CN106799445A discloses a steel bar cutting machine, which fixes the steel bar through the processing platform. The driving motor drives the cut-off wheel to cut off the steel bars. When the device cuts off the steel bars reserved for construction, it is difficult to fix and clamp the reserved steel bars due to the variable height of the reserved steel bars, and the force of the cut-off wheels of the device on the steel bars is concentrated in At the position where the cut-off wheel contacts the steel bar, the force on the steel bar is not uniform, and the cross-section is prone to unevenness. With the increase of the cutting depth, the friction force between the cross-section and the side of the cut-off wheel increases, and the damage to the cut-off wheel is greater, and the use effect is not good.

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