Screw rod shear

A technology of screw and shear opening, applied in the field of screw shears, can solve the problems of easy rotation, affecting the appearance and use of the screw, unevenness, etc., and achieve the effect of improving the appearance and use

Inactive Publication Date: 2014-06-11
ZHANGJIAGANG TIANDA TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this kind of screw shear is actually used, since the screw is placed in the fixed shear port and the dynamic shear port, the screw will be subjected to shearing torque during shearing, because the fixed shear port and the dynamic shear port In order to adapt to various specifications of the screw, usually larger than the diameter of the screw, the screw is easy to rotate under the action of shear torque, so that after cutting, the fracture of the screw will be inclined and uneven, which will affect the appearance and use of the screw

Method used

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Embodiment Construction

[0011] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] Such as figure 1 , figure 2 , image 3 As shown, the screw shear of the present invention includes a base 1, a fixed knife 2 fixed on the base 1, a movable knife 3 which is arranged on the fixed knife 2 and cooperates with the fixed knife 2, and is hinged on the base 1. The upper tube 4 and the lower tube 5 fixed on the base 1, the upper tube 4 is provided with a waist-shaped hole (not shown in the figure), one side of the movable knife 3 is connected with a connecting plate 6, and the connecting plate 6 is provided with a guide Pin (not shown in the figure), guide pin is positioned at the waist-shaped hole of upper tube 4, when pressing down upper tube 4 like this, moving knife 3 will rotate, and this is conventional technology. The fixed knife 2 is provided with a fixed shear opening 8 for accommodating the screw rod 7, and the mo...

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PUM

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Abstract

The invention discloses a screw rod shear. A screw rod shorn by the screw rod shear has flat and sloth section. The screw rod shear comprises a base, a fixed cutter fixed on the base, a movable cutter rotationally arranged on the fixed cutter and matched with the fixed cutter, an upper pipe hinged to the base, and a lower pipe fixed on the base; the upper pipe is provided with a waists-shaped hole; a connection plate is connected to one side of the movable cutter and is provided with a guide pin; the guide pin is positioned in the waist-shaped hole in the upper pipe; the fixed cutter is provided with a fixed shearing edge for containing the screw rod; the movable cutter is provided with a movable shearing edge for containing the screw rod and matched with the fixed hearing edge; a support hook is hinged to the base by a torsion spring. The fixed cutter is positioned between the movable cutter and the support hook; the upper pipe is provided with a push block which is capable of pushing the support hook to rotate and can rotate a bending part of the support hook to be the straight line same as that of the movable shearing edge and the fixed shearing edge. The screw rod shear has the advantages that the screw rod is not influenced by the shearing torsion during to rotate during shearing, so the smoothness and flatness of the section of the screw rod are ensured and the attraction and use of the screw rod are improved.

Description

technical field [0001] The invention relates to a screw shear. Background technique [0002] Commonly used screw scissors include a base, a fixed knife fixed on the base, a moving knife arranged on the fixed knife and matched with the fixed knife, an upper tube hinged on the base, and a lower tube fixed on the base. There is a waist-shaped hole on the top, a connecting plate is connected to one side of the moving knife, and a guide pin is arranged on the connecting plate. The guide pin is located in the waist-shaped hole of the upper tube. The knife is provided with a movable shear opening which accommodates the screw rod and matches with the fixed shear opening. When this kind of screw shear is actually used, since the screw is placed in the fixed shear port and the dynamic shear port, the screw will be subjected to shearing torque during shearing, because the fixed shear port and the dynamic shear port In order to adapt to various specifications of the screw, usually lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D29/02B23D33/00
Inventor 曹文龙
Owner ZHANGJIAGANG TIANDA TOOLS
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