阅读说明：本技术 拉伸弯曲矫直机视频成像装置 (Video imaging device of stretching-bending straightener ) 是由 梁新华 曹俊华 张伟 吴柳清 王乃贤 许磊 朱科杰 陈卫嘉 桑高锋 陈纪强 赵明 于 2019-12-04 设计创作，主要内容包括：本发明公开了一种拉伸弯曲矫直机视频成像装置,包括输送通道于带材入口处的正上方设置一台摄像机,所述摄像机带有电荷藕合器件图像传感器,所述摄像机连接有控制单元；所述控制单元的控制过程包括获取从所述摄像机对待矫直带材板面的图像进行周期采样得到的信息,控制单元对图像中的带材各部位的波浪进行识别,根据带材各部位带材厚度差异自动调整机列张力辊张力、弯曲辊压下量、矫直辊压下量、中间辊压下量和矫直辊倾斜量。本发明与现有技术相比,可以解决现有拉伸弯曲矫直机成品合格率较低,材料资源浪费大,且生产效率低的问题。(The invention discloses a stretch bending straightener video imaging device, which comprises a conveying channel, wherein a camera is arranged right above a strip inlet, the camera is provided with a charge coupling device image sensor, and the camera is connected with a control unit; the control process of the control unit comprises the steps of obtaining information obtained by periodically sampling the image of the plate surface of the strip to be straightened by the camera, identifying the waves of all parts of the strip in the image by the control unit, and automatically adjusting the tension of a tension roll, the rolling reduction of a bending roll, the rolling reduction of a straightening roll, the rolling reduction of a middle roll and the inclination of the straightening roll according to the thickness difference of the strip at all parts of the strip. Compared with the prior art, the invention can solve the problems of lower finished product qualification rate, large material resource waste and low production efficiency of the existing stretch bending straightener.)

1. A stretch bending straightener video image device which characterized in that: the device comprises a conveying channel, wherein a camera is arranged right above a strip inlet, the camera is provided with an image sensor of a charge-coupled device, and the camera is connected with a control unit;

the control process of the control unit comprises the following steps:

acquiring information obtained by periodically sampling the image of the surface of the strip to be straightened by the camera, converting the information into arrays with the same number as that of single-row supporting rollers corresponding to the supporting rollers according to the width direction, comparing the values of the arrays with the plate type set value, and controlling the following steps:

if the difference of the strip thickness in the supporting roller area at the edge of the strip at the strip inlet is detected, and the deviation of the strip thickness from the set value of the plate shape is shown, adjusting the inclination amount of the working roller, inclining the working roller to the side of the supporting roller, and simultaneously increasing the tension force of the tension roller and the rolling reduction of the bending roller; if the difference of the thickness of the strip in the middle of the inlet strip is detected, the rolling reduction of the working roll is adjusted, the working roll is pressed down to the two sides of the strip, and meanwhile, the tension force of the tension roll and the rolling reduction of the bending roll are increased; and if the distance of the local support roller area of the inlet strip is detected, adjusting the rolling reduction of the support roller area, so that the working roller presses down to the support roller area, and simultaneously increasing the tension roller tension and the bending roller rolling reduction.

2. The stretch bend leveler video imaging apparatus of claim 1, wherein: an auxiliary camera is also arranged right above the strip outlet of the conveying channel; the control process of the control unit further includes step B:

acquiring information obtained by periodically sampling an image of the straightened strip plate surface from an auxiliary camera which is arranged right above the strip outlet of the conveying channel, converting the information into arrays with the same number as that of single-row supporting rollers corresponding to the supporting rollers according to the width direction, comparing the arrays with a plate type set value, and controlling the following steps:

if the difference of the strip thickness of the support roll area at the edge of the outlet strip is detected, which indicates that the difference is deviated from the set value of the plate type, the inclination of the working roll is adjusted, so that the working roll is inclined towards the side of the support roll, and the tension of the tension roll and the rolling reduction of the bending roll are increased; if the difference of the thickness of the strip in the middle of the outlet strip is detected, the rolling reduction of the working roll is adjusted, the working roll is pressed down to the two sides of the strip, and meanwhile, the tension of the tension roll and the rolling reduction of the bending roll are increased; and if the distance of the local support roller area of the outlet strip is detected, adjusting the rolling reduction of the support roller area, so that the working roller presses down to the support roller area, and simultaneously increasing the tension roller tension and the bending roller rolling reduction.

3. The stretch bend straightener video imaging apparatus according to claim 1 or 2, characterized in that: the sampling period is the length of the coverage area divided by the transport speed.

Technical Field

The invention relates to the technical field of manufacturing of stretching, bending and straightening equipment in the aluminum industry, in particular to a video imaging device for a stretching, bending and straightening machine in the aluminum industry.

Background

The finishing equipment is the main equipment in the metal processing industry, wherein the stretch bending straightener plays an important role in the finishing equipment by accurate positioning and accurate forming, so the stretch bending straightener can finally realize high-precision processing by combining the processing precision on the premise of high-precision information acquisition information feedback and the like.

The conventional stretch-bending straightener comprises a pair of tension rollers 7, three working rollers 5 above and below a conveyor chain, two support rollers 6 for respectively supporting each working roller, a pair of bending rollers 3 and a pair of tension rollers 7, which are sequentially arranged on a conveying channel of a strip 1, as shown in fig. 1, wherein the arrow direction in the drawing is the material transfer direction. The strip shape of the inlet and the outlet of a conveying channel is measured manually, and then the tension of a tension roller 7, the rolling reduction of a bending roller 3, the rolling reduction of a straightening roller (comprising a working roller 5), the rolling reduction of a middle supporting roller 6 and the inclination of the straightening roller (comprising the working roller 5) are adjusted, so that the straightening effect mainly depends on the experience of an operator, the strip length of a strip section to be adjusted is longer, the qualified rate of finished products is lower, the waste of material resources is great, and the production efficiency is very low.

Disclosure of Invention

The invention aims to solve the problems that the prior stretch-bend straightener has low qualified rate of finished products, large waste of material resources and low production efficiency.

In order to solve the problems, the technical scheme of the invention is as follows: the video imaging device of the stretch bending straightener comprises a conveying channel, wherein a camera is arranged right above a strip inlet, the camera is provided with an image sensor of a charge coupling device, and the camera is connected with a control unit; the control process of the control unit comprises the following steps:

acquiring information obtained by periodically sampling the image of the surface of the strip to be straightened by the camera, converting the information into arrays with the same number as that of single-row supporting rollers corresponding to the supporting rollers according to the width direction, comparing the values of the arrays with the plate type set value, and controlling the following steps:

if the difference of the strip thickness in the supporting roller area at the edge of the strip at the strip inlet is detected, and the deviation of the strip thickness from the set value of the plate shape is shown, adjusting the inclination amount of the working roller, inclining the working roller to the side of the supporting roller, and simultaneously increasing the tension force of the tension roller and the rolling reduction of the bending roller; if the difference of the thickness of the strip in the middle of the inlet strip is detected, the rolling reduction of the working roll is adjusted, the working roll is pressed down to the two sides of the strip, and meanwhile, the tension force of the tension roll and the rolling reduction of the bending roll are increased; and if the distance of the local support roller area of the inlet strip is detected, adjusting the rolling reduction of the support roller area, so that the working roller presses down to the support roller area, and simultaneously increasing the tension roller tension and the bending roller rolling reduction.

In the above technical solution, a more specific solution may be: an auxiliary camera is also arranged right above the strip outlet of the conveying channel; the control process of the control unit further includes step B:

acquiring information obtained by periodically sampling an image of a straightened strip plate surface from an auxiliary camera of a conveying channel right above a strip outlet, converting the information into arrays with the same number as that of single-row supporting rollers corresponding to the supporting rollers according to the width direction, comparing the arrays with a plate type set value, and feeding a comparison result back to the stretch bending straightener, wherein the auxiliary camera is also arranged right above the strip outlet of the conveying channel; the control process of the control unit further includes step B:

acquiring information obtained by periodically sampling an image of the straightened strip plate surface from an auxiliary camera which is arranged right above the strip outlet of the conveying channel, converting the information into arrays with the same number as that of single-row supporting rollers corresponding to the supporting rollers according to the width direction, comparing the arrays with a plate type set value, and controlling the following steps:

if the difference of the strip thickness of the support roll area at the edge of the outlet strip is detected, which indicates that the difference is deviated from the set value of the plate type, the inclination of the working roll is adjusted, so that the working roll is inclined towards the side of the support roll, and the tension of the tension roll and the rolling reduction of the bending roll are increased; if the difference of the thickness of the strip in the middle of the outlet strip is detected, the rolling reduction of the working roll is adjusted, the working roll is pressed down to the two sides of the strip, and meanwhile, the tension of the tension roll and the rolling reduction of the bending roll are increased; and if the distance of the local support roller area of the outlet strip is detected, adjusting the rolling reduction of the support roller area, so that the working roller presses down to the support roller area, and simultaneously increasing the tension roller tension and the bending roller rolling reduction.

Further: the sampling period is the length of the coverage area divided by the transport speed.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:

the stretch bending straightener video imaging device adopts two cameras with CCD image sensors arranged at the inlet or the outlet of a belt material of a conveying channel, obtains information obtained by periodically sampling images of the surface of the belt material to be straightened or straightened by the cameras at the inlet and the outlet of the belt material, a control unit identifies waves of each part of the belt material in the images, and automatically adjusts tension of a tension roll, the pressing amount of a bending roll, the pressing amount of a straightening roll, the pressing amount of a middle roll and the inclination amount of the straightening roll of a machine line according to the thickness difference of the belt material of each part of the belt material so as to realize accurate straightening; the video imaging device of the stretch bending straightener has the advantages of simple structure, small equipment transformation investment, high straightening precision and convenience in popularization.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Detailed Description

The embodiments of the invention will be described in further detail with reference to the accompanying drawings: