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A method for adjusting the curved roller table of the pinch roller shaft adjustment mechanism before shearing

A technology for adjusting the mechanism and the roller table, which is applied in the field of flying shears, can solve the problems affecting the working efficiency of the equipment, the long stroke of the roller table slider, and the large friction and loss, so as to reduce the probability of wear and jamming, speed and The effect of small stroke and extended service life

Active Publication Date: 2020-12-22
HUATIAN NANJING ENG & TECH CORP MCC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the adjustment of the roller shaft of the pinch roller before the high-speed double-scale flying shear is realized by sliding between two sliding blocks in plane contact in the raceway. The stroke of the sliding block (or roller) of this adjustment roller is long. And the movement does not conform to the principle of kinematics, which not only causes large friction and loss, but also easily blocks the slider (or roller) during the adjustment process, which affects the working efficiency of the equipment and even causes damage to components and equipment

Method used

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  • A method for adjusting the curved roller table of the pinch roller shaft adjustment mechanism before shearing
  • A method for adjusting the curved roller table of the pinch roller shaft adjustment mechanism before shearing
  • A method for adjusting the curved roller table of the pinch roller shaft adjustment mechanism before shearing

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Embodiment 1

[0025] In the embodiment of the present invention: a method for adjusting the curved roller table of the roller shaft adjustment mechanism of the pinch roller before shearing, including the left limit position of the roller shaft slider sliding in the roller table and the right limit position of the roller shaft slider sliding in the roller table Location;

[0026] see figure 1 , when the roller slider slides in the roller table and reaches the left limit position: in order to ensure the minimum sliding speed and the shortest length of the roller slider in the roller table, define the relative speed of the slider v r perpendicular to the drag velocity v e , the relative velocity v r always parallel to the rod L 1 , get a=180-(w 1 t+θ 1 +w 2 t+θ 2 ), θ 1 and θ 2 、w 1 and w 2 Rod L 1 and pole L 2 The initial angle and rotational angular velocity, get: v r =L 2 w 2 sin(w 1 t+θ 1 +w 2 t+θ 2 ), let the roller table profile curve be y r , then we can get y by in...

Embodiment 2

[0036] Taking an actual roller table adjustment mechanism as an example to elaborate the adjustment method of the above roller table curve: the schematic diagram of the double-scale flying shear adjustment mechanism of a high-speed steel feeding system is as follows Figure 3-4 as shown, image 3 , 4 Indicates that the adjustment mechanism is in two limit positions;

[0037] H=360,h 1 =25,L 1 =220, L 3 =203,L 2 =175.22,L 4 =275,L 6 =200.83, h 2 =20

[0038] From the calculation of the above known parameters, it can be seen that the rod L 1 and L 2 The angle turned from the start position to the end position is:

[0039] θ 12 -θ 11 =1.6695rad-1.4473rad=0.2222rad;

[0040] θ22 -θ 21 =1.6051rad-1.3805rad=0.2246rad;

[0041] Assuming that the whole angle adjustment time is 2s, the rod L 1 and L 2 The angular velocity is w 1 =0.1111rad / s,w 2 =0.1123rad / s, the initial (t=0) angles are:

[0042] θ 1 = θ 11 = 1.4473rad; θ 2 = θ 21 = 1.3805rad;

[0043] Substi...

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Abstract

The invention discloses an adjusting method of a curve roller way of a novel pre-shear pinch roll shaft adjusting mechanism. According to a kinematic principle and roller way mechanism parameters, a roller way curve that is the motion track of a sliding block is optimized, it is ensured that speed and stroke of the relative motion between elements in the roller way are minimum, the wear and clamping probability between the elements can be reduced, and the service life of a device is prolonged.

Description

technical field [0001] The invention relates to the technical field of flying shears, in particular to a method for adjusting a curved roller table of a pinch roller shaft adjustment mechanism before shearing. Background technique [0002] At present, the adjustment of the roller shaft of the pinch roller before the high-speed double-scale flying shear is realized by sliding between two sliding blocks in plane contact in the raceway. The stroke of the sliding block (or roller) of this adjustment roller is long. And the movement does not conform to the principle of kinematics, which not only causes large friction and loss, but also the slider (or roller) is easy to get stuck during the adjustment process, which affects the working efficiency of the equipment, and even causes damage to components and equipment. Contents of the invention [0003] The object of the present invention is to provide a method for adjusting the curved roller table of the pinch roller shaft adjustme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D33/00B23D25/02
CPCB23D25/02B23D33/00
Inventor 樊继开方田杜预陈猛
Owner HUATIAN NANJING ENG & TECH CORP MCC