阅读说明：本技术 一种全电熔玻璃窑炉自动投料控制方法 (Automatic feeding control method for all-electric melting glass kiln ) 是由 陈义梅 宋小龙 张勇 崔元辉 刘岩 陈新飞 马聪 于 2020-11-25 设计创作，主要内容包括：一种全电熔玻璃窑炉自动投料控制方法,采用成像定位技术控制全电熔玻璃窑炉的投料作业,包括以下操作步骤：a、玻璃窑炉内液面信息采集；b、判定需投料区域及其中心点位置,计算出需投料区域的实际面积,确定所需的投料量；c、投料料仓向投料臂的皮带输送机构投放物料；d、投料臂平移机构动作,驱动投料臂伸入到玻璃窑炉内部指定位置；e、投料臂旋转机构动作,通过投料臂的摆动使其投料口与需投料区域位置相对应；f、进行定点定量投料作业；g、重复步骤c、d和e,对其它需投料区域进行定量投料；h、对玻璃窑炉内液面进行全覆盖均匀投料。本发明达到了提高窑炉内玻璃融液质量、改善操作者工作条件、降低生产成本的目的。(An automatic feeding control method of an all-electric melting glass kiln, which adopts an imaging positioning technology to control the feeding operation of the all-electric melting glass kiln, comprises the following operation steps: a. collecting liquid level information in the glass kiln; b. judging the area to be fed and the position of the central point thereof, calculating the actual area of the area to be fed, and determining the required feeding amount; c. the feeding bin feeds materials to a belt conveying mechanism of the feeding arm; d. the feeding arm translation mechanism acts to drive the feeding arm to extend into a specified position in the glass kiln; e. the feeding arm rotating mechanism acts, and the feeding port of the feeding arm is enabled to correspond to the position of the area needing to be fed through the swinging of the feeding arm; f. carrying out fixed-point quantitative feeding operation; g. repeating the steps c, d and e, and quantitatively feeding other areas needing to be fed; h. and (4) carrying out full-covering and uniform feeding on the liquid level in the glass kiln. The invention achieves the aims of improving the quality of the glass melt in the kiln, improving the working conditions of operators and reducing the production cost.)

1. An automatic feeding control method of an all-electric melting glass kiln is characterized in that the automatic feeding control method adopts an imaging positioning technology to control the feeding operation of the all-electric melting glass kiln, and comprises the following specific operation steps:

a. the digital camera (1) extends into the glass kiln (9) through the lifting channel (2) to photograph the liquid level (10) in the glass kiln, after the photographing is finished, the digital camera (1) returns to the outside of the glass kiln (9), the channel cover plate (3) seals the lifting channel (2) of the digital camera, and meanwhile, the digital camera (1) transmits the picture to a processor of the PLC control system;

b. the processor firstly judges the positions of the central points of the feeding area and the area needing feeding by using a color RGB value algorithm, then calculates the actual area of the area needing feeding by using the image pixel area corresponding to the area needing feeding in the picture, and calculates the required feeding amount according to the actual area of the area needing feeding;

c. the processor controls a feeding bin (7) to feed materials to a belt conveying mechanism of a feeding arm according to the feeding amount of a certain area needing feeding;

d. the processor controls the movement of the feeding arm translation mechanism (8) and drives the feeding arm to extend into a specified position inside the glass kiln (9) through a feeding port (4) on the side wall of the glass kiln;

e. the processor controls the action of the feeding arm rotating mechanism (6), and the feeding end of the feeding arm corresponds to the central point of the area to be fed through the swinging of the feeding arm;

f. the processor controls the belt conveying mechanism of the feeding arm to operate, and fixed-point quantitative feeding operation is carried out;

g. repeating the step c, the step d and the step e, and quantitatively feeding other areas needing to be fed;

h. after all the areas needing to be fed are subjected to quantitative feeding, the liquid level (10) in the glass kiln is subjected to full-coverage uniform feeding through the back-and-forth movement and the left-and-right swinging of the feeding arm.

2. The automatic feeding control method of the all-electric melting glass furnace according to claim 1, wherein in the step b, the RGB component intensity value range of the set color pixel is first inputted in the processor control program, the processor compares the RGB component intensity value of the central point of different areas in the digital camera picture with the set value after receiving the picture information transmitted by the digital camera (1), and when the RGB component intensity value of the central point of a certain area is within the set value range, the area is determined to be the area to be fed, and the central point of the area is the point to be fed.

3. The automatic feeding control method of the all-electric melting glass furnace according to claim 2, wherein in the step b, after a certain area is determined to be a feeding area, the geometric dimension of the feeding area is calculated according to the geometric dimension of the feeding area in the digital camera picture divided by the optical magnification of the camera, and then the area of the feeding area is calculated according to the geometric dimension of the feeding area.

4. The automatic feeding control method of the all-electric glass furnace according to claim 3, wherein in the step b, after calculating the area of the area to be fed, the feeding amount of the area is determined.

5. The automatic feeding control method of the all-electric melting glass kiln according to the claim 1, characterized in that in the step c, the material in the feeding bin (7) is the material prepared by the front-end automatic batching system according to the set components and the set proportion.

Technical Field

The invention relates to a feeding control method for a glass kiln, in particular to a fixed-point feeding control method for an all-electric melting glass kiln automatically controlled by an imaging positioning technology.

Background

In the preparation process of the medium borosilicate glass tube, the feeding operation of the all-electric melting type glass kiln generally adopts a manual timing and quantitative feeding mode, but the feeding mode has poor material feeding uniformity and is easy to mix other impurities, the phenomena that partial areas in the kiln are fully melted and other areas cannot be fully melted due to the accumulation of cold materials can also occur, so that the problems of overhigh furnace top temperature, unstable chemical properties of the materials and the like can occur, the quality of glass melt in the kiln is directly influenced, and the waste of electric heat energy is caused; in addition, the manual feeding operation has the defects of high labor intensity of operators, bad operation environment and the like, and is easy to cause misoperation, so that the whole kiln material is scrapped.

Disclosure of Invention

The invention provides an automatic feeding control method for an all-electric melting glass furnace, aiming at achieving the purposes of improving the quality of glass melt in the furnace, improving the working condition of an operator and reducing the production cost through an operation mode of fixed-point quantitative automatic feeding.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic feeding control method for an all-electric melting glass kiln, which adopts an imaging positioning technology to control the feeding operation of the all-electric melting glass kiln, and comprises the following specific operation steps:

a. the digital camera extends into the glass kiln through the lifting channel to photograph the liquid level in the glass kiln, the digital camera retreats to the outside of the glass kiln after the photographing is finished, the lifting channel of the digital camera is sealed by the channel cover plate, and meanwhile, the digital camera transmits the pictures to the processor of the PLC control system;

b. the processor firstly judges the positions of the central points of the feeding area and the area needing feeding by using a color RGB value algorithm, then calculates the actual area of the area needing feeding by using the image pixel area corresponding to the area needing feeding in the picture, and calculates the required feeding amount according to the actual area of the area needing feeding;

c. the processor controls the feeding bin to feed materials to a belt conveying mechanism of the feeding arm according to the feeding amount of a certain area needing feeding;

d. the processor controls the movement of the feeding arm translation mechanism and drives the feeding arm to extend into a specified position in the glass kiln through a feeding port on the side wall of the glass kiln;

e. the processor controls the action of the feeding arm rotating mechanism, and the feeding end of the feeding arm is enabled to correspond to the central point of the area to be fed through the swinging of the feeding arm;

f. the processor controls the belt conveying mechanism of the feeding arm to operate, and fixed-point quantitative feeding operation is carried out;

g. repeating the step c, the step d and the step e, and quantitatively feeding other areas needing to be fed;

h. after all the areas needing to be fed are quantitatively fed, the liquid level in the glass kiln is fully and uniformly fed through the back-and-forth movement and the left-and-right swinging of the feeding arm.

In the step b, firstly, the RGB component intensity value range of the set color pixel is input in the control program of the processor, the processor compares the RGB component intensity values of the central points of different areas in the digital camera picture with a set value after receiving the picture information transmitted by the digital camera, and when the RGB component intensity value of the central point of a certain area is in the set value range, the area is judged to be the area needing to be fed, and the central point of the area is the point needing to be fed.

In the step b, after a certain area is judged to be a feeding area, the geometric dimension of the feeding area is calculated according to the geometric dimension of the feeding area in the digital camera picture divided by the optical magnification of the camera, and then the area of the feeding area is calculated according to the geometric dimension of the feeding area.

In the step b, after the area of the area needing to be fed is calculated, the feeding amount of the area is determined.

In the step c, the materials in the feeding bin are prepared by the front-end automatic batching system according to the set components and the proportion.

The invention provides an automatic feeding control method of an all-electric melting glass kiln, which utilizes an imaging positioning technology to control the feeding operation of the all-electric melting glass kiln, solves the problems of waste of electric heat energy in the kiln, high labor intensity of operators, severe operating environment, easy misoperation and the like caused by uneven feeding in the existing manual timed and quantitative feeding mode, realizes the fixed-point and quantitative automatic feeding process, and achieves the purposes of improving the quality of glass melt in the kiln, improving the working conditions of operators and reducing the production cost.

Drawings

FIG. 1 is a schematic diagram of a digital camera;

FIG. 2 is a schematic view of the feeder arm translating forward;

fig. 3 is a schematic side-to-side swing of the dosing arm.

The list of labels in the figure is:

1. a digital camera; 2. a lifting channel; 3. a channel cover plate; 4. a feeding port; 5. a feeding arm; 6. a feeding arm rotating mechanism; 7. a feeding bin; 8. a feeding arm translation mechanism; 9. a glass kiln; 10. the liquid level in the glass kiln.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Referring to fig. 1, the automatic feeding control method of the all-electric melting glass kiln of the invention is matched with an automatic feeding device of the all-electric melting glass kiln to complete the fixed-point quantitative automatic feeding process in the glass kiln, and the automatic feeding device of the all-electric melting glass kiln is provided with a digital camera 1, a PLC control system, a feeding bin 7, a feeding arm 5, a feeding arm translation mechanism 8 and a feeding arm rotation mechanism 6; the digital camera 1 is arranged at the top of the glass kiln 9 and can enter the glass kiln 9 through a lifting channel 2 arranged on the top cover of the glass kiln 9 to photograph the liquid level 10 in the glass kiln.

Referring to fig. 1, 2 and 3, the automatic feeding control method of the all-electric melting glass kiln of the invention adopts the imaging positioning technology to control the feeding operation of the all-electric melting glass kiln, and comprises the following specific operation steps:

a. the digital camera 1 extends into the glass kiln 9 through the lifting channel 2 to photograph the liquid level 10 in the glass kiln, the digital camera 1 returns to the outside of the glass kiln 9 after photographing is finished, the channel cover plate 3 seals the lifting channel 2 of the digital camera, and meanwhile, the digital camera 1 transmits the picture to a processor of the PLC control system;

b. the processor firstly judges the position of a region needing to be fed and a central point by using a color RGB value algorithm, then calculates the actual area of the region needing to be fed according to the pixel area in the picture corresponding to the region needing to be fed in the picture, and then calculates the required feeding amount according to the actual area of the region needing to be fed:

first, a set color RGB component intensity value range is input in the processor control program, for example, orange, yellow, white and light yellow can be used as the set color, and the RGB component intensity values of the colors are input, wherein orange: r =246, G =163, B = 110; yellow: r =252, G =213, B = 117; white: r =254, G =254, B = 251; light yellow: r =255, G =247, B = 169; after receiving the photo information transmitted by the digital camera 1, the processor compares the RGB component intensity values of different areas in the photo of the digital camera with a set value, when the RGB component intensity value of a certain area is the same as the set value, the processor judges the area as an area needing feeding, the central point of the area is a point needing feeding, and the coordinate value of the point needing feeding is recorded in a processor program;

after the area needing to be fed is judged, calculating the geometric size of the area needing to be fed according to the geometric size of the area needing to be fed in the digital camera picture divided by the optical magnification of the camera, and calculating the area of the area needing to be fed according to the geometric size of the area needing to be fed;

and after the area of the area needing to be fed is obtained through calculation, the feeding amount of the area is calculated and determined according to an empirical formula input in a processor program.

c. The processor controls the feeding bin 7 to feed materials to a belt conveying mechanism of the feeding arm according to the feeding amount of a feeding area needing feeding, and the materials are prepared by a front-end automatic batching system according to set components and proportion;

d. the processor controls the feeding arm translation mechanism 8 to act, and drives the feeding arm to extend into a specified position in the glass kiln 9 through a feeding port 4 on the side wall of the glass kiln;

e. the processor controls the rotation mechanism 6 of the feeding arm to act, and the feeding end of the feeding arm is enabled to correspond to the central point of the area to be fed through the swinging of the feeding arm;

f. the processor controls the belt conveying mechanism of the feeding arm 5 to operate, and fixed-point quantitative feeding operation is carried out;

g. repeating the step c, the step d and the step e, and quantitatively feeding other areas needing to be fed;

h. after all the areas needing to be fed are subjected to quantitative feeding, the liquid level 10 in the glass kiln is subjected to full-coverage uniform feeding through the back-and-forth movement and the left-and-right swinging of the feeding arm 5, so that the one-time feeding process of the glass kiln is completed.