Double-layer insulating glass gluing equipment and coating control system

Abstract

The present invention relates to the technical field of double-layer glass processing, and specifically to a double-layer insulating glass glue coating device and a coating control system, comprising a glue extrusion barrel pump assembly, the glue extrusion barrel pump assembly comprising an auxiliary assembly for placing a glue barrel, a pressure plate assembly for extruding a colloid correspondingly arranged above the auxiliary assembly, and a gear pump for conveying the colloid arranged on the pressure plate assembly; a glue coating head assembly assembly, the glue coating head assembly assembly comprising a glue supply hose assembly, one end of the glue supply hose assembly is connected to the gear pump, the other end of the glue supply hose assembly is connected to the nozzle assembly, and one side of the glue coating head assembly assembly is provided with a guide rail base assembly for lifting; a conveying section assembly. The present invention is to meet the coating needs in the production of insulating glass, and through the coordinated work of various components, efficient, accurate and stable thermoplastic spacer coating is achieved, thereby producing insulating glass with good performance.

Description

Technical Field

[0001] The invention relates to the technical field of double-layer glass processing, and in particular to double-layer insulating glass glue coating equipment and a coating control system. Background Art

[0002] Double-layer insulating glass is widely used in modern buildings. It has excellent thermal insulation, sound insulation and energy-saving properties. By forming a sealed air layer or filling inert gas between the two layers of glass, it can effectively reduce heat conduction and reduce the energy consumption of the building. At the same time, it can also provide a quieter and more comfortable environment for the room. In order to apply thermoplastic warm edge materials to the production of double-layer insulating glass, a special coating machine is required. This coating machine needs to be able to accurately coat the thermoplastic material on the edge of the glass to form a uniform, continuous and appropriately thick warm edge coating. With the continuous improvement of the quality requirements of the construction industry for double-layer insulating glass, especially the increasingly stringent quality standards for warm edge coatings, such as smaller coating thickness tolerance requirements and higher bonding strength requirements, there is an urgent need for a professional equipment that can achieve high-precision coating.

[0003] At present, the processing of double-layer insulating glass coated with thermoplastic spacers in the market is mainly concentrated on the low production efficiency of each independent equipment operation, and the uniformity of glue deposition is closely related to the molding quality of double-layer insulating glass. At present, the market mainly applies glue through mechanical uniform motion, but in fact, the gluing process will be affected by comprehensive factors, resulting in unstable glue amount and reduced glue deposition rate. Summary of the invention

[0004] In view of at least one of the above technical problems, the present invention provides a double-layer insulating glass gluing equipment and a coating control system, which adopts the following technical scheme to solve the problem of low processing and production efficiency, and the gluing process is affected by comprehensive factors, resulting in unstable glue coating amount and reduced glue deposition rate.

[0005] According to one aspect of the present invention, a double-layer insulating glass gluing device is provided, comprising:

[0006] The glue extrusion barrel pump assembly includes an auxiliary assembly for placing the glue barrel, a pressure plate assembly for extruding the colloid is correspondingly arranged above the auxiliary assembly, and a gear pump for conveying the colloid is arranged on the pressure plate assembly;

[0007] The glue coating head assembly assembly includes a glue supply hose assembly, one end of which is connected to the gear pump, and the other end of which is connected to the nozzle assembly. A guide rail base assembly for controlling the lifting of the nozzle assembly is provided on one side of the glue coating head assembly;

[0008] The conveying section assembly includes a belt conveying assembly for conveying glass, and roller support assemblies and pressure wheel assemblies for rolling and clamping glass are respectively arranged on both sides of the belt conveying assembly, and a support frame for auxiliary conveying of glass is arranged on the upper side of the belt conveying assembly.

[0009] The present invention is further configured that a glue flow hole is provided in the middle of the pressure plate assembly, and one end of the glue flow hole is connected to the input end of the gear pump;

[0010] A plurality of heating rods are evenly distributed on the bottom of the pressure plate assembly.

[0011] The present invention is further configured such that the glue coating head assembly also includes a glue pushing assembly and a glue supply pump, the glue pushing assembly is arranged at the front section of the glue supply hose assembly, and the glue supply pump is arranged at the middle section of the glue supply hose assembly.

[0012] The present invention is further configured such that the glue coating head assembly also includes a visual detection sensor and a viscosity sensor, the viscosity sensor is arranged at the rear section of the glue supply hose assembly, and the visual detection sensor is located above the nozzle assembly.

[0013] The present invention is further configured such that the conveying section assembly also includes a suction cup belt assembly for assisting in conveying glass, the suction cup belt assembly is arranged on the upper side of the belt conveying assembly, and the suction cup belt assembly is connected to a fan assembly.

[0014] The present invention is further configured such that a positioning assembly is provided at one end of the belt transmission assembly.

[0015] The present invention also discloses a coating control system, which is applied to a double-layer insulating glass gluing device, comprising:

[0016] The glue supply control module is used to stably deliver the corresponding glue amount according to the glue coating speed;

[0017] Colloid data acquisition module, which is used to obtain the actual amount of applied glue and the colloid viscosity value in real time;

[0018] The gluing speed control module is used to obtain the gluing speed value according to the real-time actual glue coating amount and the colloid viscosity value, and control the movement speed of the gluing head assembly component, the conveying section component and the nozzle component according to the gluing speed value.

[0019] The present invention is further configured that the step of obtaining the glue coating speed value according to the real-time actual coating glue amount and the glue viscosity value comprises:

[0020] Obtain image information of the glass after the glue is applied, and obtain the actual glue deposition rate according to the image information of the glass after the glue is applied;

[0021] Get the actual moving acceleration of the nozzle assembly;

[0022] Obtain the real-time viscosity variation coefficient of the colloid;

[0023] Obtain the comprehensive influencing factor of glue coating amount according to the actual glue deposition rate, the actual movement acceleration of the nozzle assembly and the real-time viscosity variation coefficient;

[0024] Get the set moving speed of the nozzle assembly;

[0025] The gluing speed value is obtained according to the comprehensive influencing factors of the gluing amount and the moving speed set by the nozzle component.

[0026] The present invention is further configured that the step of obtaining the actual glue deposition rate according to the image information after the glass is coated with glue comprises:

[0027] Grayscale processing is performed on the image information after the glass is coated with glue;

[0028] The glue layer area is separated from the background glass area through the threshold segmentation algorithm;

[0029] Count the number of pixels in the glue layer area, and calculate the actual area of ​​the glue layer on the edge of the glass based on the number of pixels;

[0030] According to the actual area of ​​the glue layer on the edge of the glass, the actual amount of glue deposited in the area is obtained;

[0031] The actual glue deposition rate is obtained by calculating the actual glue amount deposited in the area and the target glue deposition amount.

[0032] The present invention is further configured such that the step of obtaining the actual amount of glue deposited on the area according to the actual area of ​​the glue layer on the edge of the glass comprises:

[0033] Obtaining glue layer image information at different angles, and obtaining glue layer size information according to the glue layer image information at different angles;

[0034] Get the density of the colloid;

[0035] The volume of the glue layer is obtained according to the size information of the glue layer, and the actual amount of glue deposited in the area is obtained according to the volume of the glue layer and the density of the colloid.

[0036] The present invention has the following technical effects:

[0037] The present invention is designed to meet the coating needs in the production of insulating glass. Through the coordinated work of various components, efficient, accurate and stable coating of thermoplastic spacers is achieved, thereby producing insulating glass with good performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a three-dimensional diagram of the whole machine of the present invention;

[0040] Figure 2 It is a structural diagram of the pressure plate assembly in the present invention;

[0041] Figure 3 is a stereogram of a conveying section assembly in the present invention;

[0042] Figure 4 It is another three-dimensional structure of the transmission section component in the present invention. Figure 1 ;

[0043] Figure 5 It is another three-dimensional structure of the transmission section component in the present invention. Figure 2 ;

[0044] Figure 6 It is a stereoscopic diagram of the assembly components of the glue coating head in the present invention;

[0045] Figure 7 is another stereoscopic view of the glue coating head assembly component of the present invention;

[0046] Figure 8 It is a coating control system diagram in the present invention.

[0047] Reference numerals:

[0048] 1. Glue extrusion barrel pump assembly; 11. Lifting drive assembly; 12. Pressure plate assembly; 121. Heating rod; 13. Auxiliary assembly; 14. Gear pump; 2. Glue coating head assembly; 21. Guide rail base assembly; 22. Glue pushing assembly; 23. Glue supply pump; 24. Visual detection sensor; 25. Glue supply hose assembly; 3. Conveying section assembly; 31. Belt conveying assembly; 32. Suction cup belt assembly; 33. Roller support assembly; 34. Positioning assembly; 35. Support frame; 36. Pressure wheel assembly; 4. Nozzle assembly; 5. Fan assembly. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0050] In this embodiment of the present invention, Figure 1-Figure 7 As shown, a double-layer insulating glass gluing device is provided, comprising:

[0051] A glue extrusion barrel pump assembly 1, the glue extrusion barrel pump assembly 1 includes an auxiliary assembly 13 for placing a glue barrel, a corresponding pressure plate assembly 12 for extruding the colloid is arranged above the auxiliary assembly 13, and a gear pump 14 for conveying the colloid is arranged on the pressure plate assembly 12, and the gear pump 14 is driven by a servo motor to stir the fluid glue into the conveying pipeline connected to the glue coating head assembly assembly 2; a lifting drive assembly 11 is connected to the top of the pressure plate assembly 12, and the lifting drive assembly 11 is used to push the pressure plate assembly 12 up and down, mainly to provide downward pressure for the pressure plate assembly 12, and the lifting drive assembly 11 includes a booster air pump, a hydraulic solenoid valve and a hydraulic cylinder. When the entire lifting drive assembly 11 starts to work, the booster air pump first operates to generate pressurized gas to provide power support for the hydraulic system, and then the hydraulic solenoid valve is opened or closed according to the set control signal, so that the hydraulic oil enters the hydraulic cylinder according to a predetermined path and flow rate. Under the action of the hydraulic oil, the inside of the hydraulic cylinder pushes the piston and other moving parts to make linear motion, thereby driving the pressure plate assembly 12 connected thereto to achieve reciprocating motion in the up and down directions.

[0052] A glue coating head assembly component 2, wherein the glue coating head assembly component 2 includes a glue supply hose assembly 25, one end of which is connected to a gear pump 14, and the other end of which is connected to a nozzle assembly 4, wherein the nozzle assembly 4 includes a nozzle rotatably connected to the glue supply hose assembly 25 and a rotary drive device for controlling the rotation of the nozzle, and a guide rail base assembly 21 for controlling the lifting and lowering of the nozzle assembly 4 is provided on one side of the glue coating head assembly component 2, wherein the guide rail base assembly 21 includes a gear column and a gear meshed with the gear column, and the rotation of the gear can drive the glue coating head assembly 2 to lift and lower as a whole; the glue coating head assembly component 2 also includes a glue pushing assembly 22 and a glue supply pump 23, wherein the glue pushing assembly 22 is provided at the front section of the glue supply hose assembly 25, and the glue supply pump 23 is provided at the middle section of the glue supply hose assembly 25;

[0053] The conveying section component 3 includes a belt conveying component 31 for conveying glass, and roller support components 33 and pressure wheel components 36 for rolling and clamping glass are respectively arranged on both sides of the belt conveying component 31. A support frame 35 for auxiliary conveying glass is arranged on the upper side of the belt conveying component 31. A positioning component 34 is arranged at one end of the belt conveying component 31. The positioning component 34 is a contact sensor. After contacting the glass, it provides sensing information to the controller to control the conveying section component 3 to stop.

[0054] The conveying section component 3 conveys the glass to the front of the nozzle component 4, and stops when it senses the positioning component 34. The glue extrusion barrel pump component 1 melts and squeezes the solid glue, and the fluid glue flows to the glue coating head assembly component 2 through the glue supply hose connection component, and then the glue is accurately delivered to the nozzle component 4 through the glue pushing component 22 in the glue coating head assembly component 2. The nozzle component 4 applies the glue to the surrounding of the glass through the opening and closing of the servo motor. The present invention can fully automate the glue coating process with higher efficiency.

[0055] In the above process, the conveying section component 3 is responsible for the horizontal lateral movement of the glass, and the guide rail base component 21 of the glue coating head assembly component 2 is responsible for the vertical longitudinal movement of the nozzle component 4. The longitudinal movement of the nozzle component 4 and the lateral movement of the glass are coordinated to achieve gluing at any position of the glass. At the same time, since the cross-sectional shape of the glue strip is rectangular, in some corner areas, the nozzle component 4 needs to be rotated as necessary to adjust the coating angle. Therefore, the nozzle component 4 can achieve lateral movement, longitudinal movement and self-rotation angle adjustment, which is conducive to more precise gluing.

[0056] A glue flow hole is provided in the middle of the pressure plate assembly 12, and one end of the glue flow hole is connected to the input end of the gear pump 14;

[0057] A plurality of heating rods 121 are evenly distributed on the bottom of the pressure plate assembly 12 .

[0058] The pressure plate assembly 12 is used to melt and extrude the solid glue to make it a fluid glue that can be applied. The glue barrel is placed on the auxiliary assembly 13. The auxiliary assembly 13 is used to support the glue barrel. The pressure plate assembly 12 can be pressed into the glue barrel. At the same time, the colloid is heated by the heating rod 121 to melt the colloid. While the fluid glue in the glue barrel is squeezed out from the glue flow hole, the gear pump 14 transports the fluid glue to the glue coating head assembly 2.

[0059] The glue coating head assembly component 2 further includes a visual detection sensor 24 and a viscosity sensor. The viscosity sensor is arranged at the rear section of the glue supply hose component 25 , and the visual detection sensor 24 is located above the nozzle component 4 .

[0060] The visual detection sensor 24 and the viscosity sensor are used to obtain the image of the glass after glue coating and the actual viscosity value of the colloid when it flows out, respectively, to help the coating control system better control the glue coating speed.

[0061] In order to improve the stability during glass conveying, the conveying section assembly 3 also includes a suction cup belt assembly 32 for assisting in conveying glass. The suction cup belt assembly 32 is arranged on the upper side of the belt conveyor assembly 31 and is connected to a fan assembly 5.

[0062] The fan assembly 5 can provide negative pressure attraction for the suction cup belt assembly 32, and the suction cup belt assembly 32 can use the negative pressure attraction to form an adsorption effect on the glass during the transportation process, thereby improving the stability of the glass during the coating process, and further improving the molding quality of the double-layer insulating glass.

[0063] like Figure 1 and Figure 8 As shown, the present invention also discloses a coating control system, which is applied to a double-layer insulating glass gluing device, including:

[0064] A glue supply control module, the glue supply control module is used to stably deliver a corresponding amount of glue according to the glue coating speed; establish a numerical relationship between the glue coating speed and the glue coating amount, and obtain the amount of glue required to be delivered per unit time according to the numerical relationship;

[0065] A colloid data acquisition module, which is used to obtain the actual amount of applied glue and the colloid viscosity value in real time;

[0066] The glue coating speed control module is used to obtain the glue coating speed value according to the real-time actual coating glue amount and the colloid viscosity value, and control the movement speed of the glue coating head assembly component 2, the conveying section component 3 and the nozzle component 4 according to the glue coating speed value.

[0067] The step of obtaining the glue coating speed value according to the real-time actual glue coating amount and the glue viscosity value comprises:

[0068] Acquire image information of the glass after the glue is applied, and acquire an actual glue deposition rate according to the image information of the glass after the glue is applied;

[0069] Obtaining the actual moving acceleration of the nozzle assembly 4;

[0070] Obtain the colloid viscosity value and the initial colloid viscosity value, and obtain the colloid real-time viscosity change coefficient according to the colloid viscosity value and the initial colloid viscosity value, and the calculation formula is:

[0071] ;

[0072] In the formula, Indicates the real-time viscosity variation coefficient of the colloid, Indicates the real-time colloid viscosity value. Indicates the initial viscosity of the colloid;

[0073] Get the acceleration weight;

[0074] Get the viscosity value weight;

[0075] Obtain target glue deposition rate;

[0076] Obtain the maximum moving acceleration of the nozzle assembly 4;

[0077] The comprehensive influencing factor of the glue amount is obtained according to the actual glue amount deposition rate, the actual moving acceleration of the nozzle assembly 4 and the real-time viscosity variation coefficient, and the calculation formula is:

[0078] ;

[0079] In the formula, Represents the comprehensive influencing factor of glue coating amount, Indicates the actual glue deposition rate. Indicates the target glue deposition rate, Indicates the actual moving acceleration of the nozzle assembly 4 at the current moment, represents the maximum moving acceleration of the nozzle assembly 4, represents the acceleration weight, Indicates the real-time viscosity variation coefficient of the colloid, Indicates the weight of viscosity value;

[0080] Method for obtaining acceleration weight: while keeping other factors unchanged, change the acceleration and observe the change in the glue coating quality, and determine the acceleration weight according to the change; the method for obtaining the viscosity value weight is the same as the method for obtaining the acceleration weight;

[0081] The weight of acceleration refers to the proportion of the comprehensive influencing factors of acceleration on the amount of glue applied. In the context of glue application, acceleration involves the acceleration of the nozzle assembly 4, such as the acceleration of the nozzle assembly 4 when starting, stopping or changing speed. If the nozzle assembly 4 frequently accelerates and decelerates, when applying glue to objects with complex shapes, the nozzle assembly 4 needs to constantly change direction and speed. At this time, the weight of the impact of acceleration on the quality and efficiency of glue application will be relatively large; for some colloids that are sensitive to force, the acceleration of the nozzle assembly 4 will affect the uniformity of the colloid extruded from the nozzle assembly 4. If the cohesive force of the colloid is large, the large acceleration may cause the colloid to be unevenly distributed in the nozzle assembly 4, thereby affecting the quality of glue application. At this time, the weight coefficient of acceleration will also increase accordingly.

[0082] The viscosity value weight refers to the proportion of the comprehensive influencing factors of viscosity change on the amount of glue applied. The viscosity value is an important characteristic of the colloid, which affects the fluidity and coating performance of the colloid. The temperature has a significant effect on the viscosity of the colloid. When the temperature of the colloid changes, its viscosity will change. In the gluing process of some hot melt adhesives, the increase in temperature will reduce the viscosity of the colloid. If the gluing process has high requirements for the stability of the colloid viscosity, then the weight coefficient of the viscosity change caused by temperature is relatively large; the gluing speed is related to the viscosity of the colloid. For colloids with high viscosity, uneven gluing may occur when gluing at high speed. Therefore, when the gluing speed changes, the weight of the influence of viscosity change on the gluing effect will increase.

[0083] Get the set moving speed of the nozzle assembly 4;

[0084] Obtain the weight value of the comprehensive influencing factor of the glue coating amount;

[0085] The gluing speed value is obtained according to the comprehensive influencing factor of the gluing amount and the moving speed set by the nozzle assembly 4, and the calculation formula is:

[0086] ;

[0087] In the formula, Indicates the gluing speed value, Represents the comprehensive influencing factor of glue coating amount, Indicates the set moving speed of the nozzle assembly 4, Indicates the weight value of the comprehensive influencing factors of the glue coating amount;

[0088] Steps to obtain the weight value of the comprehensive influencing factor of glue coating amount:

[0089] Step 1: At the beginning of equipment commissioning, a preliminary setting of the weight value of the comprehensive influencing factor of the glue coating amount is made based on experience and reference values ​​of similar processes, and is set as a starting value;

[0090] Step 2: While keeping other gluing conditions unchanged, perform gluing operation according to the initially set gluing speed and record the actual glue deposition rate.

[0091] Step three, calculate the comprehensive influencing factor of the glue coating amount according to the actual glue coating effect, then use the above formula to calculate the adjusted glue coating speed value, apply the calculated glue coating speed value to the glue coating operation, and observe the glue coating effect again.

[0092] Step 4. Based on the effect of the second gluing, evaluate whether the adjustment of the gluing speed is appropriate. If the gluing effect is improved but still not optimal, you can gradually increase or decrease the value of the comprehensive influencing factor of the gluing amount and repeat the above gluing experiment and evaluation process until a satisfactory gluing effect is obtained. The value at this time is a more appropriate value.

[0093] The running speeds of the glue coating head assembly 2 and the conveying section assembly 3 are obtained according to the glue coating speed value, wherein the calculation formula when the nozzle assembly 4 moves in a straight line is:

[0094] ;

[0095] In the formula, Indicates the gluing speed value, The guide rail base assembly 21 in the glue coating head assembly 2 controls the lifting speed. represents the horizontal conveying speed of the belt conveying assembly 31 in the conveying section assembly 3;

[0096] When glue is applied to the target area, the moving path and direction are known, such as the glue application speed value. In the moving direction with an angle of 30° to the positive direction of the X axis, it is equal to 80 , the guide rail base assembly 21 controls the lifting speed that is:

[0097] ;

[0098] Horizontal conveying speed of the belt conveyor assembly 31 that is:

[0099]

[0100] Gluing speed value 80 = ;

[0101] The calculation formula when the nozzle assembly 4 moves in a curve is:

[0102] = ;

[0103] In the formula, Indicates the gluing speed value, The guide rail base assembly 21 in the glue coating head assembly 2 controls the lifting speed. represents the horizontal conveying speed of the belt conveyor assembly 31 in the conveyor section assembly 3, represents the rotation speed of the nozzle assembly 4, The angle between the rotation speed direction of the nozzle assembly 4 and the linear moving speed direction of the nozzle assembly 4 is the direction of the linear moving speed of the nozzle assembly 4, which is the direction of the linear moving speed synthesized by the running speed of the guide rail base assembly 21 controlling the lifting and the horizontal conveying speed of the belt conveyor assembly 31. The linear moving speed of the nozzle assembly 4 is equal to When the nozzle assembly 4 moves in a curve, the curve path can be decomposed into several small straight paths, so the rotation speed direction of the nozzle assembly 4 is also the movement direction of the several small straight paths. When the rotation speed of the nozzle assembly 4 is combined with the running speed of the guide rail base assembly 21 controlling the lifting and the horizontal conveying speed of the belt conveyor assembly 31, these three vectors are synthesized into one speed. First, the running speed of the guide rail base assembly 21 controlling the lifting and the horizontal conveying speed of the belt conveyor assembly 31 are synthesized into a straight moving speed. Then the rotation speed of the nozzle assembly 4 (i.e., the speed in the direction of movement of several small straight paths) is decomposed into components parallel to the direction of the straight-line movement speed. and the component perpendicular to the direction of the linear velocity , after decomposition, the component parallel to the linear moving velocity and The directions of are the same, so they can be added directly to form a resultant velocity component parallel to the direction of the linear moving velocity:

[0104] ;

[0105] This combined velocity component is Vertically, according to the Pythagorean theorem, the square-sum-square root calculation of two mutually perpendicular velocity vectors can be obtained to obtain the combined velocity gluing velocity value. , then based on the glue speed value The guide rail base assembly 21 can be used to control the lifting speed according to the actual gluing path and direction. , horizontal conveying speed of the belt conveyor assembly 31 and the rotation speed of the nozzle assembly 4 .

[0106] Assume that the actual glue deposition rate at a certain moment is 20% higher than the target glue deposition rate through visual inspection and calculation, that is, ; The acceleration of the glue coating head reaches 40% of the maximum allowable acceleration, that is ; The coefficient of change of colloid viscosity is 1.3, which is 30% higher than the initial viscosity. ; Assume K1=0.3, K2=0.2, K3=0.3, the initial gluing speed is 80mm / S;

[0107] First, calculate the comprehensive influencing factor of glue coating amount:

[0108]

[0109] Then calculate the glue coating speed value according to the comprehensive influencing factors of the glue coating amount:

[0110] , that is, the gluing speed value is 89.12mm / S, and then the running speed of the equipment is updated according to this value.

[0111] The uniformity of glue coating is closely related to the speed of glue coating. When the speed of glue coating is too slow, the glue coating head stays in the same position for too long per unit time, which may lead to excessive glue in that area and glue accumulation. In other areas, the amount of glue is relatively reduced during the subsequent glue coating process, resulting in uneven glue coating. In some processes that require precise control of the amount of glue, if the speed of the glue coating head is too slow, the glue layer thickness at some parts of the glass edge may significantly exceed the standard value, affecting the product quality. On the contrary, if the speed of glue coating is too fast, the glue extrusion speed may not be able to keep up with the movement of the glue coating head in time. The movement of the glue line will cause breakpoints or too little glue, so that some areas on the edge of the glass cannot be fully coated, which will also destroy the uniformity of the glue coating. For example, on a high-speed production line, if the glue coating movement speed is not reasonably set according to the extrusion characteristics of the colloid, this problem will easily occur, resulting in substandard product sealing performance; at the same time, the uniformity of glue coating is also closely related to the viscosity of the colloid. When the viscosity of the colloid is low, the fluidity of the colloid is better, and it can be easily spread on the coated surface during the glue coating process, which is conducive to the colloid forming a uniform glue layer on the plane. When using some low-viscosity When glue is applied to a large flat surface, the glue can be quickly leveled to reduce the uneven thickness of the glue layer. When the viscosity of the colloid is high, the fluidity of the colloid is poor, and it is not easy to flow and spread during the coating process. This will cause the colloid to accumulate at the outlet of the coating head during coating, or form irregular glue piles on the coated surface, making it difficult to form a uniform glue layer. For example, in some hot melt adhesive coating operations, if the viscosity of the hot melt adhesive increases rapidly during the cooling process, it may cause uneven coating; and at the same time, the coating speed interacts with the viscosity of the colloid. For low-viscosity colloids, Adapt to higher gluing speeds, because low-viscosity colloids can still maintain good fluidity at faster gluing speeds, thereby ensuring uniformity of gluing. For example, in some automated high-speed gluing production lines, the use of low-viscosity quick-drying glue can achieve better gluing uniformity during high-speed gluing. For high-viscosity colloids, if the gluing speed is too fast, the colloid may not be able to spread evenly on the coated surface in time. This is because the high-viscosity colloid itself has a large flow resistance. When gluing quickly, the colloid does not have enough time to adjust its own distribution, which is prone to problems such as uneven glue thickness and discontinuous glue lines.

[0112] In order to ensure the uniformity of glue coating, the present invention accurately matches the glue coating movement speed according to the viscosity value of the colloid and the actual coating glue deposition rate, so as to ensure that a uniform glue coating effect can be achieved under different production conditions. According to this method, multiple factors such as the glue deposition situation, the movement state of the nozzle assembly 4 and the colloid viscosity variation coefficient are comprehensively considered, and the real-time dynamic adjustment of the glue coating speed can be achieved more accurately, thereby ensuring the uniformity of glue coating and meeting the quality requirements for the production of insulating glass.

[0113] The step of obtaining the actual glue deposition rate according to the image information after the glass is coated with glue comprises:

[0114] grayscale processing is performed on the image information after the glass is coated with glue;

[0115] The glue layer area is separated from the background glass area through the threshold segmentation algorithm;

[0116] Counting the number of pixels in the glue layer area, and calculating the actual area of ​​the glue layer on the edge of the glass according to the number of pixels;

[0117] According to the actual area of ​​the adhesive layer on the edge of the glass, the actual amount of adhesive deposited in the area is obtained;

[0118] The actual glue amount deposition rate is calculated based on the actual glue amount deposited in the area and the target glue amount deposited, and the calculation formula is:

[0119] ;

[0120] In the formula, Indicates the actual amount of glue deposited in the area, Indicates the target deposited glue amount.

[0121] The step of obtaining the actual amount of glue deposited on the area according to the actual area of ​​the glue layer on the edge of the glass comprises:

[0122] Obtaining glue layer image information at different angles, and obtaining glue layer size information according to the glue layer image information at different angles;

[0123] Get the density of the colloid;

[0124] The volume of the glue layer is obtained according to the size information of the glue layer, and the actual amount of glue deposited in the area is obtained according to the volume of the glue layer and the density of the colloid.

[0125] The above are only preferred embodiments of the present application, and do not constitute any formal limitation on the present application. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present application without departing from the scope of the technical solution of the present application, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the present application without departing from the content of the technical solution of the present application should be included in the protection scope of the present application.

Claims

1. A coating control system, characterized in that: include: A glue supply control module, the glue supply control module is used to stably deliver a corresponding amount of glue according to a glue coating speed; A colloid data acquisition module, which is used to obtain the actual amount of applied glue and the colloid viscosity value in real time; A glue coating speed control module, the glue coating speed control module is used to obtain a glue coating speed value according to the real-time actual glue coating amount and the colloid viscosity value, and control the movement speed of the glue coating head assembly component (2), the conveying section component (3) and the nozzle component (4) according to the glue coating speed value; The step of obtaining the glue coating speed value according to the real-time actual glue coating amount and the glue viscosity value comprises: Acquire image information of the glass after the glue is applied, and acquire an actual glue deposition rate according to the image information of the glass after the glue is applied; Obtaining the actual moving acceleration of the nozzle assembly (4); Obtaining a colloid viscosity value and an initial colloid viscosity value, and obtaining a colloid real-time viscosity variation coefficient according to the colloid viscosity value and the initial colloid viscosity value; The comprehensive influencing factor of the glue coating amount is obtained according to the actual glue deposition rate, the actual moving acceleration of the nozzle assembly (4) and the real-time viscosity variation coefficient, and the calculation formula is: ； In the formula, Represents the comprehensive influencing factor of glue coating amount, Indicates the actual glue deposition rate. Indicates the target glue deposition rate, represents the actual moving acceleration of the nozzle assembly (4), represents the maximum moving acceleration of the nozzle assembly (4), represents the acceleration weight, Indicates the real-time viscosity variation coefficient of the colloid, Indicates the viscosity value weight; Obtaining a set moving speed of the nozzle assembly (4); The glue coating speed value is obtained according to the comprehensive influencing factor of the glue coating amount and the moving speed set by the nozzle component (4).

2. A coating control system according to claim 1, characterized in that: The step of obtaining the actual glue deposition rate according to the image information after the glass is coated with glue comprises: grayscale processing is performed on the image information after the glass is coated with glue; The glue layer area is separated from the background glass area through the threshold segmentation algorithm; Counting the number of pixels in the glue layer area, and calculating the actual area of ​​the glue layer area on the edge of the glass according to the number of pixels; Acquire the actual amount of glue deposited in the glue layer region according to the actual area of ​​the glue layer region on the edge of the glass; The actual glue deposition rate is obtained by calculating the actual glue amount deposited in the area and the target glue deposition amount.

3. A coating control system according to claim 2, characterized in that: The step of obtaining the actual amount of glue deposited in the glue layer region according to the actual area of ​​the glue layer region on the glass edge comprises: Acquire image information of the glue layer at different angles, acquire size information of the glue layer according to the image information of the glue layer at different angles, and acquire the volume of the glue layer according to the size information of the glue layer; Get the density of the colloid; The actual amount of glue deposited in the area is obtained according to the volume of the glue layer and the density of the colloid.

4. A double-layer insulating glass glue coating device, used to execute a coating control system according to any one of claims 1 to 3, characterized in that: include: A glue extrusion barrel pump assembly (1), the glue extrusion barrel pump assembly (1) comprising an auxiliary assembly (13) for placing a glue barrel, a pressure plate assembly (12) for extruding a colloid being arranged above the auxiliary assembly (13), and a gear pump (14) for conveying the colloid being arranged on the pressure plate assembly (12); A glue coating head assembly component (2), the glue coating head assembly component (2) comprising a glue supply hose component (25), one end of the glue supply hose component (25) being connected to a gear pump (14), the other end of the glue supply hose component (25) being connected to a nozzle component (4), and a guide rail base component (21) for controlling the lifting and lowering of the nozzle component (4) being provided on one side of the glue coating head assembly component (2); A conveying section assembly (3), the conveying section assembly (3) comprising a belt conveying assembly (31) for conveying glass, a roller support assembly (33) and a pressure wheel assembly (36) for rolling and clamping glass being respectively arranged on both sides of the belt conveying assembly (31), and a supporting frame (35) for assisting in conveying glass being arranged on the upper side of the belt conveying assembly (31).

5. The double-layer insulating glass gluing equipment according to claim 4 is characterized in that: A glue flow hole is provided in the middle of the pressure plate assembly (12), and one end of the glue flow hole is connected to the input end of the gear pump (14); A plurality of heating rods (121) are evenly distributed on the bottom of the pressure plate assembly (12).

6. The double-layer insulating glass gluing equipment according to claim 4 is characterized in that: The glue coating head assembly component (2) further comprises a glue pushing component (22) and a glue supply pump (23), wherein the glue pushing component (22) is arranged at the front section of the glue supply hose component (25), and the glue supply pump (23) is arranged at the middle section of the glue supply hose component (25).

7. The double-layer insulating glass gluing equipment according to claim 4 is characterized in that: The glue coating head assembly component (2) further comprises a visual detection sensor (24) and a viscosity sensor, wherein the viscosity sensor is arranged at the rear section of the glue supply hose component (25), and the visual detection sensor (24) is located above the nozzle component (4).

8. The double-layer insulating glass gluing equipment according to claim 4 is characterized in that: The conveying section assembly (3) further comprises a suction cup belt assembly (32) for assisting in conveying glass, wherein the suction cup belt assembly (32) is arranged on the upper side of the belt conveying assembly (31), and the suction cup belt assembly (32) is connected to a fan assembly (5).

9. The double-layer insulating glass gluing equipment according to claim 4 is characterized in that: A positioning assembly (34) is provided at one end of the belt transmission assembly (31).

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