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Hobbing type reinforcing steel bar shredding cutter

A hobbing and cutting tool technology, which is applied in the field of hobbing and shredding steel bar shredding knives, can solve the problems of easy wear and tear of the knife teeth, achieve the effects of strong versatility, avoid excessive shearing, and improve service life

Pending Publication Date: 2022-05-20
ANHUI LINGFENG METALLURGICAL MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the teeth of the shredder are easy to wear out when the shredder processes strip-shaped metal materials such as steel bars in the prior art, the present invention provides a hobbing type steel bar shredding tool, which is designed to have a trapezoidal cross-section in the axial horizontal direction where the knife shaft is located. Shaped knife teeth, when shredding steel bars, achieve the effect of buffer shearing and shredding, thereby improving the service life of the knife teeth

Method used

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  • Hobbing type reinforcing steel bar shredding cutter
  • Hobbing type reinforcing steel bar shredding cutter
  • Hobbing type reinforcing steel bar shredding cutter

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Experimental program
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Effect test

Embodiment 1

[0034] combine Figure 1-Figure 2 , the hobbing type steel bar shredding tool of the present embodiment comprises cutter shafts 10 arranged side by side, and circular blades 3 and spacers 4 fixed on the cutter shafts 10 alternately, and the outer peripheral surfaces of the blades 3 are alternately arranged There are cutter teeth 31 and cutter grooves 32, and the cross-sections of the cutter teeth 31 and the cutter grooves 32 in the horizontal direction along the axial direction of the cutter shaft 10 are both trapezoidal in shape, compared with radial or circumferential cutters with trapezoidal shapes. When shredding steel bars, the axially trapezoidal cutter teeth can achieve the effect of buffer shearing and shredding in specific applications, avoiding direct excessive shearing, thereby improving the service life of the cutter teeth. In specific applications, the cutter teeth 31 and the cutter grooves 32 and the blade 3 can be of an integrated structure or can be detachably ...

Embodiment 2

[0036] A kind of hobbing type steel bar shredding tool of the present embodiment, basic structure keeps consistent with embodiment 1, further, as Figures 3 to 5 As shown, the center of the blade 3 and the spacer 4 is a mounting hole 33 with a polygonal cross-section, matched with the same polygonal cutter shaft 10, the stability after installation is high, and relative sliding during shredding can be effectively avoided. In addition, the tooth directions of the trapezoidal cutter teeth 31 of the blades 3 on different cutter shafts 10 are in the same direction or facing away from each other, and different tooth directions can be selected according to materials of different specifications. The bottom angle of the trapezoidal shape of the cutter teeth 31 is 50°~70°, 60° is the most suitable. The number of cutter teeth 31 on each blade 3 is 8 to 10, and 9 is the most suitable. The cutter teeth 31 in this range take into account the shredding efficiency and service life. Specifical...

Embodiment 3

[0038] A kind of roll cutting type steel bar shredding tool of the present embodiment, the basic structure is consistent with embodiment 2, and further, comprises more than three groups of rolling cutting type steel bar shredding knives, such as Figure 6As shown, three groups of cutters are arranged vertically. Among the three groups of cutters, the tooth direction of the cutter teeth 31 is opposite to the upper group, the same direction is in the middle, and the back facing group is lower. The cutters with different tooth orientations are effectively arranged and divided, and the service life of the cutter teeth can be further improved under the premise of ensuring the shredding effect. In specific applications, since it is difficult to unify and classify the specifications of steel bars in large-scale dismantling factories, many specifications are often mixed together. If a set of knives is used, either the shreds will not be thorough, or the thicker steel bars will be rever...

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Abstract

The invention discloses a rolling cutting type reinforcing steel bar shredding cutter, and belongs to the technical field of cutters for machining. The hobbing type reinforcing steel bar shredding cutter comprises cutter shafts arranged side by side, circular blades and spacer bushes, the circular blades and the spacer bushes are fixed to the cutter shafts in a staggered mode, cutter teeth and cutter tooth grooves are arranged on the peripheral faces of the blades in a staggered mode, and the sections of the cutter teeth and the cutter tooth grooves in the horizontal direction in the axial direction where the cutter shafts are located are both in a trapezoid shape. In specific application, the cutter teeth, the cutter tooth grooves and the blade can be of an integrated structure or detachably fixed to the blade. By designing the cutter teeth with the trapezoidal cross sections in the horizontal direction of the axial direction where the cutter shaft is located, the effect of buffering type shearing and shredding is achieved when reinforcing steel bars are shredded, and therefore the service life of the cutter teeth is prolonged.

Description

technical field [0001] The invention belongs to the technical field of cutting tools for mechanical processing, and more specifically relates to a rolling cutting type steel bar shredding tool. Background technique [0002] Steel bar refers to steel for reinforced concrete and prestressed reinforced concrete. Its cross section is circular, sometimes square with rounded corners, including smooth round steel bar, ribbed steel bar, twisted steel bar, and waste steel bar can be recycled. Rebar shredders are generally used to shred waste steel bars during recycling. [0003] The shredder blade is one of the most important accessories on the shredder. Its quality directly affects the processing cycle of the machine to waste. Small material size, widely used in the crushing of waste steel bars, waste plastics, waste rubber, wood and other bulky wastes. The parts used to cut materials on the shredder blade can be called cutter teeth. Generally, there are multiple cutter teeth for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C18/18B02C18/14B09B3/35
CPCB02C18/18B02C18/142B09B3/00Y02W30/78
Inventor 刘道豹程超张世运刘国庆
Owner ANHUI LINGFENG METALLURGICAL MACHINERY
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