阅读说明：本技术 一种浮法玻璃优化切割的方法及设备 (Method and equipment for optimally cutting float glass ) 是由 冯朝辉 唐菊芳 范东文 欧庆陵 于 2019-09-26 设计创作，主要内容包括：本发明公开了一种浮法玻璃优化切割方法,依次包括如下步骤,检测待切割玻璃；根据检测结果生成切割方案；将所述待切割玻璃纵向切割；将所述待切割玻璃横向切割。通过在一块已知长度、宽度以及缺陷信息的浮法玻璃板面上,根据订单要求切割一定规格的玻璃原片时,优先规划质量较好的玻璃原片,并保证玻璃原板的利用率较大,以提高玻璃成品的销售价格,提高经济效益。(The invention discloses an optimized cutting method of float glass, which sequentially comprises the following steps of detecting glass to be cut; generating a cutting scheme according to the detection result; longitudinally cutting the glass to be cut; and transversely cutting the glass to be cut. When a glass sheet with a certain specification is cut according to the order requirement on the surface of a float glass plate with known length, width and defect information, the glass sheet with better quality is planned preferentially, and the utilization rate of the glass sheet is ensured to be higher, so that the sale price of a glass finished product is improved, and the economic benefit is improved.)

1. An optimized cutting method for float glass is characterized by comprising the following steps:

the method comprises the following steps: detecting glass to be cut;

step two: generating a cutting scheme according to the detection information;

step three: longitudinally cutting the glass to be cut;

step four: and transversely cutting the glass to be cut.

2. The optimal cutting method for float glass according to claim 1, wherein the longitudinal cutting in the third step is to cut the whole width of the glass to be cut, and the middle part can not be cut by a lifting knife.

3. The float glass optimal cutting method according to claim 1, wherein the detection information of the second step at least comprises defect information of the glass to be cut.

4. The float glass optimal cutting method according to claim 3, wherein the defect information comprises defect type information, defect number information and/or defect size information allowed to be contained in the glass to be cut.

5. The method for optimally cutting float glass according to claim 5, wherein the cutting plan of the second step comprises an optimal cutting plan generated according to the detection information and the order specification, and glass finished products with different quality grades are formed.

6. The optimal cutting method for float glass according to claim 3, wherein when the cutting position of the glass original sheet to be cut is changed, the quality grade information of the finished glass product needs to be re-determined according to the detected defect information.

7. The cutting apparatus of any one of the optimal cutting methods for float glass according to claims 1 to 6, wherein the apparatus comprises an online quality detection system, an optimal cutting control system, a cutting transmission system and an upper computer; the online quality detection system is used for detecting real-time information of the glass to be cut and a finished glass product after cutting; the optimized cutting control system is connected with the online quality detection system and the cutting transmission system and is used for generating an optimized cutting scheme and controlling the cutting transmission system to cut; the upper computer is used for displaying the current and historical glass plate surface quality conditions, optimized cutting schemes, checking the current and historical production data, setting production orders and modifying the destination of the optimized glass finished products.

8. The method of claim 7, wherein the online quality detection system comprises an online glass detection system and a glass integrity detection system.

9. The optimal cutting method for float glass according to claim 7, wherein the cutting transmission system comprises an encoder measuring mechanism, a full-automatic slitting machine, a transverse cutting machine, a transverse breaking device, a roller conveyor, a stacker or a manipulator; the glass to be cut is conveyed forwards slowly at a constant speed by the conveying roller way, and the encoder measuring mechanism is used for measuring a length signal and a reference signal of the glass to be cut; the full-automatic slitting machine, the transverse cutting machine and the transverse breaking device are sequentially arranged above the conveying roller way and used for longitudinally cutting and transversely cutting the glass to be cut, the transverse breaking device transversely breaks the glass along a cutter mark, and the stacker or the manipulator conveys the cut glass finished products to a specified place.

Technical Field

The invention relates to the field of glass manufacturing, in particular to an optimized cutting method and equipment for float glass.

Background

Various defects can be generated on the surface of the glass by a plurality of factors in the production process of the float glass, and at the current production level, float glass manufacturers can hardly avoid the defects, and the types, the quantity and the sizes of the defects can influence the quality of the glass in different degrees, thereby influencing the price of the glass. At present, the traditional cutting method adopted in the float glass cutting process only cuts according to set specification and size, only focuses on improving the utilization rate of a glass raw plate, does not perform optimization analysis aiming at improving the cutting rate of high-quality products of the glass raw plate according to different defect types, sizes and quantities, and cannot enable a float glass manufacturer to further improve the economic benefit under the existing process technical conditions, so that a new optimized cutting method is necessary to be provided according to the production characteristics of float glass, and the cutting rate of the high-quality products of the glass raw plate is improved.

Disclosure of Invention

The invention aims to solve the technical problems of solving the cutting rate of high-quality glass raw plates and improving the production economic benefit. Aiming at the defects in the prior art, the invention provides an optimized cutting method for float glass, and the technical scheme adopted by the invention for solving the technical problems is as follows: an optimized cutting method for float glass comprises the following steps:

the method comprises the following steps: detecting glass to be cut;

step two: generating a cutting scheme according to the detection result;

step three: longitudinally cutting the glass to be cut;

step four: and transversely cutting the glass to be cut.

Preferably, the longitudinal cutting in the third step is to cut the whole width of the glass to be cut, and the middle part of the glass to be cut cannot be cut by lifting a cutter.

Preferably, the detection information of the second step at least comprises the defect information of the glass to be cut.

Preferably, the defect information comprises the type information, the number information and/or the size information of the defect, which the detection of the glass to be cut is allowed to contain.

Preferably, the cutting scheme of the second step includes an optimized cutting scheme generated according to the detection information and the order specification, and glass finished products with different quality grades are formed.

Preferably, when the cutting position of the glass original sheet to be cut is changed, the quality grade information of the finished glass product needs to be re-judged according to the detected defect information.

According to another aspect of the invention, the cutting equipment of the optimized float glass cutting method comprises an online quality detection system, an optimized cutting control system, a cutting transmission system and an upper computer; the online quality detection system is used for detecting real-time information of the glass to be cut and a finished glass product after cutting; the optimized cutting control system is connected with the online quality detection system and the cutting transmission system and is used for generating an optimized cutting scheme and controlling the cutting transmission system to cut; the upper computer is used for displaying the current and historical glass plate surface quality conditions, optimized cutting schemes, checking the current and historical production data, setting production orders and modifying the destination of the optimized glass finished products.

Preferably, the online quality detection system comprises a glass online detection system and a glass integrity detection system.

Preferably, the cutting transmission system comprises an encoder measuring mechanism, a full-automatic slitting machine, a transverse cutting machine, a transverse breaking device, a conveying roller way, a stacking machine or a manipulator; the glass to be cut is conveyed forwards slowly at a constant speed by the conveying roller way, and the encoder measuring mechanism is used for measuring a length signal and a reference signal of the glass to be cut; the full-automatic slitting machine, the transverse cutting machine and the transverse breaking device are sequentially arranged above the conveying roller way and used for longitudinally cutting and transversely cutting the glass to be cut, the transverse breaking device transversely breaks the glass along a cutter mark, and the stacker or the manipulator conveys the cut glass finished products to a specified place.

Compared with the prior art, the invention has the beneficial technical effects that: the traditional cutting method only cuts according to the set specification and size, manually inspects the quality grade of the cut glass plate, and can not carry out optimization analysis aiming at improving the cutting rate of high-class products of the glass original plate according to different defect types, sizes and quantities. The total price of the finished float glass is determined by the area of the finished glass and the quality grade of the glass, and the requirement of maximizing the production benefit cannot be met only by pursuing the highest utilization rate or the highest quality grade of the glass. The optimized cutting system for float glass has the advantages that: when a glass sheet with a certain specification is cut on a float glass plate surface with known length, width and defect information according to the order requirement, the glass sheet with better quality is planned preferentially, and the utilization rate of the glass sheet is ensured to be higher, so that the total sale price of the cut glass finished product is highest. The quality detection of the glass product after the glass cutting is finished is replaced, the selling price of the glass product can be improved to a certain extent, and the economic benefit is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic view of a method for optimizing cutting of float glass according to an embodiment of the present invention;

FIG. 2 is a schematic view of the discharge position of a glass original according to an embodiment of the present invention;

FIG. 3 is a schematic illustration of a cutting protocol in an embodiment of the present invention;

fig. 4 is a schematic view illustrating a structure of a float glass cutting apparatus according to an embodiment of the present invention.

Detailed Description

In order that the objects, aspects and advantages of the invention will become more apparent, the embodiments will be described with reference to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural and functional modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention.

As shown in fig. 1, the method for optimizing cutting of float glass mainly comprises four steps of defect detection, cutting scheme generation, longitudinal cutting and transverse cutting, wherein in the actual production process, a glass belt is slowly conveyed forwards at a constant speed by a conveying roller 7, and in the running process of the glass belt, firstly, information such as the position, the type, the size and the like of each defect on the glass belt is obtained through an online quality detection system; secondly, on the basis of the known glass defect information, the optimized cutting control system 3 generates an effective cutting scheme on a glass ribbon with a certain fixed length according to the cutting requirement; finally, longitudinal cutting and transverse cutting are carried out according to the determined cutting scheme to obtain the finished glass product.

Specifically, an online quality detection system (not shown in the figure) detects the defect information and the integrity detection information of the glass to be cut and transmits the information to the optimized cutting control system 3. The optimized cutting control system 3 performs real-time comprehensive analysis and processing according to the information, performs comprehensive judgment on the information according to a quality grade judgment standard principle input in advance, and the optimized cutting control system 3 automatically selects the most appropriate specification to cut, break and track the glass to be cut only by setting a simple expected value by an operator, and controls a cutting transmission system (not shown in the figure) to cut the glass until the cut glass finished product is sent to an appointed place.

Specifically, as shown in the cutting order of table 1, the optimized cutting method for float glass requires: the longitudinal cutting of the glass to be cut must cut the plate width of the whole glass plate, the middle part can not be lifted to cut, and the transverse cutting can change the specification of the glass. Accordingly, the optimal cutting control system 3 can only arrange glass original sheets with equal length in the same row of the glass original plate when planning the cutting scheme. Take the cutting order in table 1 as an example: the order number 1 glass original sheet may be programmed in the same column as itself or as the order number 2 glass original sheet.

Cutting orders

TABLE 1

Specifically, the quality grade of the float glass sheet is determined according to the national standard of float glass or the standard set by enterprises, the finished glass products obtained by cutting can be divided into a plurality of quality grades, the types, the quantity and the size of defects allowed to be contained in the glass with different quality grades are different, the higher the quality grade of the glass is, the higher the price per square meter is, therefore, the glass products with higher quality grades are cut as far as possible in the production process, the specific defect types comprise defects such as bubbles, inclusions, optical distortion, tin ash and the like, and other defect types which can be related are not listed one by one here.

In particular, the quality grade of the glass master is closely related to its discharge position. As shown in fig. 2, assuming that the order numbers of the 1 st position and the 2 nd position in the 1 st column are i and j (i ≠ j), if the arrangement positions of the two pieces of glass are exchanged, the utilization rate of the glass original plate will not be changed, that is, the defect information included in the glass original plate will be changed due to the change of the cutting position of the glass original plate. Therefore, when the position of a certain glass original sheet is changed, the quality level thereof needs to be newly determined based on new defect information.

Specifically, the optimized cutting method for float glass has the advantages that when a glass sheet with a certain specification is cut on a float glass plate surface with known length, width and defect information according to the requirement of an order, the cutting area of the glass sheet with better quality grade can be planned in advance in priority to ensure that the utilization rate of the glass sheet is higher, so that the value of a glass finished product obtained by cutting is highest.

Specifically, as shown in fig. 3, a float glass raw plate with a length of 12200mm and a width of 4000mm is provided, after the detection of the first step, the surface of the glass plate contains 40 defect points, according to the optimized cutting method of the present invention, a cutting scheme is given through optimized calculation by the optimized cutting control system 3, and then longitudinal cutting and transverse cutting are performed according to the determined cutting scheme to obtain a glass finished product.

According to another aspect of the invention, a cutting device of the optimized float glass cutting method is shown in FIG. 4, and comprises an online quality detection system, an optimized cutting control system 3, a cutting transmission system (and an upper computer 1, wherein the online quality detection system is used for detecting the glass to be cut, the optimized cutting control system 3 is connected with the online quality detection system and the cutting transmission system and is used for generating an optimized cutting scheme and controlling the cutting transmission system to cut and convey the glass, the upper computer 1 is used for displaying the quality conditions of the current and query history glass plate surfaces and the optimized cutting scheme, meanwhile, the current and query history production data can be checked, a production order can be set, and the destination of the optimized cut glass plate can be modified.

Specifically, the online quality detection system comprises a glass online detection system 2 and a glass integrity detection system 4, wherein the glass online detection system 2 is used for detecting defect type information of glass to be cut, including bubbles, inclusions, optical distortion, tin ash and the like, the glass online detection system 2 is composed of a plurality of high-speed digital cameras, and the defect information of a glass plate related to optical indexes is detected by optical methods such as a high-precision grating and the like; the glass integrity detection system 4 is composed of a plurality of cameras, the cameras are used for shooting the appearance of the glass plate, checking the corner quality of the glass plate and whether the glass plate is broken or broken, the glass plate is located behind a plate falling roller way (not shown in the figure), the cameras are used for detecting the integrity of the glass plate after the glass plate is transversely broken, longitudinally broken and longitudinally separated, and the information is sent to the optimized cutting control system 3. If the glass plate is broken, polygonal or unfilled corner, or incomplete edge after the above operations, the optimal cutting control system 3 will drop the glass plate with problems or treat it as a waste plate according to the preset conditions.

Specifically, the cutting transmission system comprises an encoder measuring mechanism 12, a full-automatic slitting machine 5, a transverse cutting machine 6, a transverse breaking device 11, a conveying roller way 7, a stacker 8 or a manipulator 9, wherein length measuring and reference signals come from the encoder measuring mechanism 12 of the cutting transmission system (if the cutting transmission system cannot provide the length and reference signals, the length and reference signals can be selected and installed by the optimized cutting system 2), the encoder measuring mechanism 12 is used for measuring the moving distance of the glass plate in unit time, and generating a reference pulse per meter and sending the reference pulse to the online quality detection system. After each reference signal, the on-line quality detection system returns a glass defect data packet to the optimized cutting control system 2 for generating an optimized cutting plan. The glass to be cut is conveyed forwards slowly at a constant speed by a conveying roller way 7, the full-automatic slitting machine 5, the transverse cutting machine 6 and the transverse breaking device 11 are sequentially arranged above the conveying roller way 7 and used for longitudinally and transversely cutting the glass to be cut, the transverse breaking device 11 is used for transversely breaking the glass along a knife mark after transverse cutting, and the stacker 8 or the manipulator 9 sends the cut glass finished products to a specified place.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.