Pendulum-type concave-convex shear blade

A scissor blade and knife body technology, applied in the field of pendulum concave-convex scissors, can solve the problems of inability to guarantee the straightness and parallelism of the shearing surface of the sheet to be sheared, low cutting efficiency of the blade, and short service life, etc. The cutting effect is good, the deformation is small, and the service life is improved.

Active Publication Date: 2015-07-01
MAANSHAN HENGLIDA MACHINE BLADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the existence of pendulum scissors in the prior art: (1) the blades are severely worn and have a short service life when cutting plates; The requirements of straightness and parallelism and poor cutting quality provide a pendulum-type concave-convex scissor blade. Using the technical solution of the present invention, the blade has strong wear resistance and impact resistance, and the blade has good cutting effect and high efficiency. high, long service life

Method used

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  • Pendulum-type concave-convex shear blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] With reference to the accompanying drawings, a pendulum-type concave-convex scissor blade in this embodiment includes an upper knife and a lower knife. The upper knife (combined with image 3 ) includes an upper knife body and an upper knife back 12, the upper knife body is a strip structure, and this upper knife body includes an upper knife edge surface 11, an upper knife mounting hole 13 and an upper knife edge surface 14. The upper knife back 12 is located on the side of the upper knife body, and the upper knife back 12 protrudes from the upper knife edge surface 11 . The upper knife edge surface 11 is an inwardly concave arc surface, the upper knife edge surface 14 is an inwardly concave V-shaped structure, and the upper knife mounting hole 13 is uniform along the length direction of the upper knife body. set up.

[0055] The lower knife (combined with Figure 4 ) includes a lower knife body and a lower knife back 22, and the lower knife body is also a strip stru...

Embodiment 2

[0084] A pendulum-type concave-convex scissor blade in this embodiment is basically the same as in Embodiment 1, except that the upper knife and the lower knife are made of forged blanks, and the component weight percentages of the forged blanks in this embodiment are: C: 0.38%, Si: 1.0%, Mn: 0.35%, S: 0.030%, P: 0.030%, Cr: 5.1%, Ni: 0.25%, Cu: 0.30%, V: 1.0%, Mo: 1.4%, The balance is Fe.

[0085] A kind of manufacturing method of pendulum concave-convex scissor blade of the present embodiment, its steps are:

[0086] Step 1. Preparation of raw materials: The composition of the forging blank used in the pendulum concave-convex scissors of this embodiment is calculated by weight percentage: C: 0.38%, Si: 1.0%, Mn: 0.35%, S: 0.030%, P: 0.030%, Cr: 5.1%, Ni: 0.25%, Cu: 0.30%, V: 1.0%, Mo: 1.4%, and the balance is Fe.

[0087] Step 2, annealing treatment of forging blank:

[0088] The forged blank in step 1 is annealed in an annealing furnace to reduce the hardness of the forg...

Embodiment 3

[0111] A pendulum-type concave-convex scissor blade in this embodiment is basically the same as in Embodiment 1, except that the upper knife and the lower knife are made of forged blanks, and the component weight percentages of the forged blanks in this embodiment are: C: 0.45%, Si: 1.20%, Mn: 0.50%, S: 0.028%, P: 0.028%, Cr: 5.50%, Ni: 0.24%, Cu: 0.28%, V: 1.20%, Mo: 1.75%, The balance is Fe.

[0112] A kind of manufacturing method of pendulum concave-convex scissor blade of the present embodiment, its steps are:

[0113] Step 1. Preparation of raw materials: The composition of the forged blank used in the pendulum concave-convex scissors of this embodiment is calculated by weight percentage: C: 0.45%, Si: 1.20%, Mn: 0.50%, S: 0.028%, P: 0.028%, Cr: 5.50%, Ni: 0.24%, Cu: 0.28%, V: 1.20%, Mo: 1.75%, and the balance is Fe.

[0114] Step 2, annealing treatment of forging blank:

[0115] The forged blank in step 1 is annealed in an annealing furnace to reduce the hardness of t...

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Abstract

The invention discloses a swinging type concave-convex shear blade and a manufacturing method thereof, and belongs to the technical field of mechanical blades. The shear blade comprises an upper knife and a lower knife, wherein the upper knife comprises a knife body of the upper knife and a knife back of the upper knife; the knife body of the upper knife is in a long-strip-shaped structure; the knife body of the upper knife comprises a knife blade face of the upper knife, upper knife mounting holes and a knife edge face of the upper knife; the knife blade face of the upper knife is an inwards-concave circular-arc-shaped face; the knife edge face of the upper knife is in an inwards-concave V-shaped structure; the upper knife mounting holes are uniformly formed along the length direction of the knife body of the upper knife; the basic structure of the lower knife is the same as that of the upper knife; the difference is as follows: a knife blade face of the lower knife is an outwards-convex circular-arc-shaped face. The manufacturing method of the shear blade comprises the following steps of: preparing raw materials; carrying out annealing treatment on a forged blank; roughly machining the forged blank; carrying out heat treatment; roughly grinding the swinging type concave-convex shear blade; finely machining the swinging type concave-convex shear blade. The blade disclosed by the invention is strong in wear resistance and impact resistance, is good in blade cutting effect, is high in efficiency and is long in service life.

Description

[0001] The patent application of the present invention is a divisional application with application number: 2013103964165. The filing date of the original application is: September 4, 2013. The name of the invention is: a pendulum concave-convex scissor blade and its manufacturing method. technical field [0002] The invention belongs to the technical field of mechanical blades, and more specifically relates to a pendulum concave-convex scissors blade. Background technique [0003] Metal sheets can be cut, bent, stamped, welded into various components, flexible and convenient to use, and are widely used in many industries such as automobiles, aviation, shipbuilding, and tractor manufacturing. Sheet metal shears are used to cut or cut sheets and profiles into required sizes. Among them, the pendulum sheet metal shearing machine relies on the mechanical hydraulic system to drive the upper blade to swing in an arc around a fixed axis to cooperate with the fixed lower blade, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D35/00B23P15/40C22C38/42C22C38/04C22C38/02C22C38/44C22C38/46
Inventor 张增明张德进谢敏张华
Owner MAANSHAN HENGLIDA MACHINE BLADE
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