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Intelligent sizing mill for high-precision steel pipe

A high-precision, sizing machine technology, applied in the direction of metal rolling, etc., can solve the problems of reducing the rolling stability of the steel pipe sizing external dimension accuracy, increasing the driving force consumption, affecting the steel pipe sizing accuracy, etc., to ensure stability And intelligent detection function, enhanced sizing accuracy, easy and quick adjustment effect

Pending Publication Date: 2022-06-28
扬州市华生焊管设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the steel pipe is positioned by the rolls of the sizing mill, it is often necessary to pre-set the suitable type of rolls according to the positioning arc surface of the outer diameter of the same type of steel tube. It will increase the consumption of driving force, which will affect the sizing accuracy of the steel pipe and reduce the sizing quality of the steel pipe. Moreover, if the outer diameter of the steel pipe is large, it is difficult to ensure that the positioning rollers fit seamlessly with the outer diameter of the pipe, which will easily cause the steel pipe to Eccentric dislocation occurs, which further reduces the dimensional accuracy of steel pipe sizing and rolling stability, and when the steel pipe is conveyed offset, it is difficult for the staff to know in time, and generally the steel pipe needs to be pulled out again to correct and maintain the internal structure , affecting the continuous work progress of the device, making the maintenance of steel pipes more cumbersome and inconvenient, and reducing the working efficiency of sizing

Method used

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  • Intelligent sizing mill for high-precision steel pipe
  • Intelligent sizing mill for high-precision steel pipe
  • Intelligent sizing mill for high-precision steel pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1, as Figure 1-3 As shown in the figure, when the steel pipe is conveyed in the machine room 1 and has an eccentric dislocation, the pressure of the two sets of elastic pieces 34 and the pressure sensor 33 can be sensed unevenly, so as to determine that the currently conveyed steel pipe is offset, and the first steel pipe can be automatically activated at this time. The servo motor 25 drives the gear 24 to rotate, and then uses the mutual meshing of the gear 24 and the outer gear ring 26 to force the outer gear ring 26 to rotate in a circular manner under the guidance of the annular guide groove 23, and then through the rotation of the outer gear ring The set of arc-shaped guide plates 27 squeezes the guide posts 28, so that the four sets of guide posts 28 drive the springs 29 to elastically compress and cause the arc-shaped ball plates 210 to contract inward synchronously, so as to fit and limit different types of steel pipes to form a clamping system, the ecc...

Embodiment 2

[0042] Example 2, as Figure 1-2 and Figure 7 As shown in the figure, when the steel pipe is sizing, the steel pipe is first entered from the inlet silo 41, and the end of the steel pipe is contacted with multiple sets of guide wheels 42. At this time, through the elasticity of the inner sleeve 45 and the outer sleeve 44 and the return spring 43 Telescopic, so that the guide wheel 42 can adapt to the ends of steel pipes of different sizes, and guide and transport them, and the gradual lifting system of multiple sets of guide wheels 42 from the outside to the inside can make the steel pipe get auxiliary traction in the first Y-shaped The seat 31 and the axis between the three groups of sizing rollers 315 on the inner side of the second Y-shaped seat 35 .

Embodiment 3

[0043] Example 3, as Figure 4-5 As shown, through the Y-shaped and inverted Y-shaped structures of the first Y-shaped seat 31 and the second Y-shaped seat 35, the six groups of sizing rollers 315 can be seamlessly calibrated with the outer diameter of the steel pipe, and can pass through the guide wheel. The shaft cover and shaft cap installed on the seat 314 are convenient to replace the sizing rollers 315 with different types of cambers, so as to realize the sizing processing of steel pipes with different outer diameters. consumption, increase the precision of the adjustment.

[0044] Working principle: When sizing the steel pipe, the sizing roller 315 used for the corresponding type of steel pipe can be set, and the sizing roller 315 can be placed inside the guide wheel base 314, so as to disassemble and assemble the sizing rollers 315 of multiple types of cambered surfaces. , when the steel pipe is sizing, let the steel pipe enter the machine room 1, at this time, the be...

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Abstract

The invention discloses a high-precision steel pipe intelligent sizing mill which comprises a machine room, and a seamless sizing mechanism is arranged in the machine room. Each seamless sizing mechanism comprises a first Y-shaped seat, a first telescopic sleeve, a pressure sensor, an elastic sheet, a second Y-shaped seat, a second telescopic sleeve, a mounting plate, a bevel gear set, a second servo motor, a bidirectional screw rod, an inner threaded pipe, an annular plate, a hinge rod, a guide wheel seat and a sizing roller; through the structural cooperation of the seamless sizing mechanism, two groups of sizing systems can be formed in the machine room, and by utilizing the structural characteristics of the first Y-shaped seat and the second Y-shaped seat, six groups of sizing rollers for sizing are added, and the six groups of sizing rollers are arranged in different directions, so that the outer diameters of steel pipes with different cambered surfaces are subjected to sizing attachment; the steel pipe is kept in the center to be rolled, and the sizing structure can adapt to sizing work of steel pipes with various outer diameters by replacing sizing rollers with different cambered surfaces.

Description

technical field [0001] The invention relates to the technical field of sizing machines, in particular to an intelligent sizing machine for high-precision steel pipes. Background technique [0002] The process of steel pipe sizing, diameter reduction and tension reduction is the continuous rolling process of hollow body without mandrel. The required dimensional accuracy and the process of sizing, diameter reduction and tension reduction of the true round steel pipe are the continuous rolling process of the hollow body without mandrel. After sizing, the diameter deviation of the steel pipe is small, the ovality is small, and the straightness is small. Preferably, the process of sizing, reducing and tension reducing of the surface smooth steel pipe is a hollow body without a core. [0003] When positioning the steel pipe through the rollers of the sizing machine, it is often necessary to pre-set the appropriate type of roller according to the positioning arc of the outer diame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B19/10
CPCB21B19/10
Inventor 张国华吴国军李大伟黄勇军
Owner 扬州市华生焊管设备有限公司