阅读说明：本技术 预点胶逻辑控制 (Pre-dispensing logic control ) 是由 王本正 刘�文 徐庶 袁勋 张少良 张业 于 2021-08-16 设计创作，主要内容包括：本发明公开了预点胶逻辑控制,其具体逻辑控制流程如下：设备自动生产运行步骤；对运行界面进行设置；点胶前进行预点胶,在指定位置喷射设定好的点数,相机检测喷射胶点的状态,区分点胶完毕后点胶位的状态,检测合格时进行预点胶操作,检测不合格时进行清胶排角处理,清洁胶排胶处理完毕后再次进行指定位置喷射定位的点数,若是,再次经过相机去检测胶点状态后,合格的继续执行预点胶操作,不合格的继续进行请胶排胶处理,重复所述相机去检测胶点状态步骤,在不合格达到设定次数后,设备报警；本发明保证阀体出胶顺利,采用预点胶方式来保证点胶的精确程度,能够有效的避免出现不良品,具有良好的市场应用价值。(The invention discloses a pre-dispensing logic control, which comprises the following specific logic control flows: the equipment automatically produces and operates the step; setting an operation interface; pre-dispensing before dispensing, spraying set points at a specified position, detecting the state of the sprayed glue points by a camera, distinguishing the state of the glue points after dispensing is finished, performing pre-dispensing operation when the detection is qualified, performing glue cleaning and corner discharging treatment when the detection is unqualified, cleaning the points sprayed and positioned at the specified position again after the glue discharging treatment is finished, if yes, performing pre-dispensing operation continuously when the camera detects the glue point state again, performing glue applying and discharging treatment continuously when the unqualified glue is unqualified, repeating the step of detecting the glue point state by the camera, and giving an alarm by equipment when the unqualified glue reaches the set times; the invention ensures smooth glue discharging of the valve body, ensures the precision degree of glue dispensing by adopting a pre-glue dispensing mode, can effectively avoid defective products and has good market application value.)

1. The pre-dispensing logic control is characterized in that the specific logic control flow is as follows: the equipment automatically produces and operates the step; setting an operation interface; the method comprises the steps of performing pre-dispensing before dispensing, spraying set points at a specified position, detecting the state of spraying the glue points by a camera, distinguishing the state of the glue points after dispensing is finished, performing pre-dispensing operation when the glue points are qualified, performing glue cleaning and corner discharging treatment when the glue points are unqualified, cleaning the points after the glue discharging treatment is finished, spraying and positioning at the specified position again, if yes, detecting the glue points by the camera again, performing the pre-dispensing operation continuously if qualified, performing glue dispensing and discharging treatment continuously if unqualified, repeating the step of detecting the glue points by the camera, and giving an alarm by equipment when the unqualified glue points reach the set times.

2. The pre-dispensing logic control of claim 1, wherein the setting of the operation interface comprises enabling a pre-dispensing function, an automatic glue cleaning function, an automatic glue discharging function, and a laser correction position function; after the automatic glue cleaning function detects NG for the first time, starting an automatic glue cleaning step, and then removing pre-dispensing; the automatic glue discharging function is used for carrying out the automatic glue discharging step after NG is detected for the first time, then the pre-dispensing is carried out, and the laser correction position function is a pre-dispensing laser detection method.

3. The pre-dispensing logic control of claim 1, wherein the setting of the operation interface further comprises setting a kiss-coating detection position coordinate and setting the number of kiss-coating detection shots, wherein the setting of the kiss-coating detection position coordinate determines a specific position when kiss-coating is detected; whether the number of the glue spraying points of the valve body is normal or not is detected by setting the glue hanging detection spraying points.

4. The pre-dispensing logic control of claim 1, wherein pre-dispensing before dispensing requires setting a matrix start position, setting a matrix end position, setting XY numbers and lifting a matrix; setting the initial position of the matrix and the final position of the matrix, setting the number of points of an XY axis of the matrix, setting the height of a dispensing valve and the valve opening time of the dispensing valve during dispensing, and starting dispensing detection.

5. The pre-dispensing logic control of claim 4, wherein when the dispensing detection is enabled, the pre-dispensing interval time of the dispensing detection mode is started, the pre-dispensing is performed according to the set time, and the number of the pre-dispensing intervals is pre-dispensed according to the set product number.

6. The pre-dispensing logic control of claim 4, wherein the matrix extraction is performed according to the set starting point, ending point and XY number, the number is based on the number of dots of each injection of the pre-dispensing.

7. The pre-dispensing logic control of claim 1, wherein in the camera de-dispensing detection state, the method further comprises adjusting a light source of the camera, performing binarization processing on the picture taken by the camera, and performing inversion setting on the binarization of the picture after the binarization processing is performed on the picture, and performing filling setting on the picture.

8. The pre-dispensing logic control of claim 1, wherein the pre-dispensing actually determines the pre-dispensing path by plotting coordinates of the dots and heights of the dispensing valves, a start position and an end position of the matrix, and a number of X rows and a number of Y rows.

Technical Field

The invention relates to the field of automation control logic, in particular to pre-dispensing logic control.

Background

Since glue is a mixed fluid and contains objects of various chemical components, and the objects have the characteristics of volatilization, adhesion and solidification, the situation that a valve body nozzle is blocked during the spraying process of a valve body can occur, and the situation is very common in the glue dispensing industry. Nozzle clogging is the biggest source of failure in the dispensing industry. Once the nozzle is blocked, the phenomena of unsmooth glue discharging of the valve body, small glue amount, branching of glue lines, drifting of the glue lines and the like can be caused. In the glue dispensing process, due to the process characteristics, the glue dispensing height is very low, so that the tip of the nozzle is in contact with glue, and in order to ensure the consistency of the glue lines, after the glue is dispensed, a suck-back action is carried out to suck the glue lines outside the nozzle back into the valve body. Because the valve body cavity volume is certain, the glue of resorption can lead to the glue capacity of nozzle the inside too big, when next some glue, often appear gluing the volume when being excessive, so need discharge some with the glue of nozzle the inside this time, then go the point again and glue.

In automatic production, the valve body can cause the glue spot of blowout to appear gluey volume to reduce with time. The problem of unsmooth glue discharging such as glue point shape change can generate bad products if the glue is removed when the glue discharging of the valve body is unsmooth.

Accordingly, the prior art is deficient and needs improvement.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides a pre-dispensing logic control to solve the problems.

The technical scheme provided by the invention is the logical control of pre-dispensing, and is characterized in that the specific logical control flow is as follows: the equipment automatically produces and operates the step; setting an operation interface; the method comprises the steps of performing pre-dispensing before dispensing, spraying set points at a specified position, detecting the state of spraying the glue points by a camera, distinguishing the state of the glue points after dispensing is finished, performing pre-dispensing operation when the glue points are qualified, performing glue cleaning and corner discharging treatment when the glue points are unqualified, cleaning the points after the glue discharging treatment is finished, spraying and positioning at the specified position again, if yes, detecting the glue points by the camera again, performing the pre-dispensing operation continuously if qualified, performing glue dispensing and discharging treatment continuously if unqualified, repeating the step of detecting the glue points by the camera, and giving an alarm by equipment when the unqualified glue points reach the set times.

Preferably, the operation interface is set to include a pre-dispensing function, an automatic glue cleaning function, an automatic glue discharging function and a laser position correcting function; after the automatic glue cleaning function detects NG for the first time, starting an automatic glue cleaning step, and then removing pre-dispensing; the automatic glue discharging function is used for carrying out the automatic glue discharging step after NG is detected for the first time, then the pre-dispensing is carried out, and the laser correction position function is a pre-dispensing laser detection method.

Preferably, the setting of the operation interface further comprises setting a kiss-coating detection position coordinate and setting the number of kiss-coating detection injection points, wherein the setting of the kiss-coating detection position coordinate determines a specific position when kiss-coating is detected; whether the number of the glue spraying points of the valve body is normal or not is detected by setting the glue hanging detection spraying points.

Preferably, before dispensing, pre-dispensing needs to be carried out, wherein a matrix starting position, a matrix terminal position, XY number and lifting matrix are set; setting the initial position of the matrix and the final position of the matrix, setting the number of points of an XY axis of the matrix, setting the height of a dispensing valve and the valve opening time of the dispensing valve during dispensing, and starting dispensing detection.

Preferably, when the dispensing detection is started, the dispensing detection mode is started for the dispensing interval time, the dispensing is performed according to the set time, and the dispensing is performed according to the set product number according to the number of the dispensing intervals.

Preferably, the matrix extraction is performed according to a set starting point, an end point and XY number, and the number is based on the number of dots of each injection by the pre-dispensing.

Preferably, in the camera glue spot removal detection state, the method further comprises adjusting a light source of the camera, performing binarization processing on the picture taken by the camera, performing inversion setting on the picture binarization after the binarization processing is performed on the picture, and meanwhile, performing filling setting on the picture.

Preferably, the pre-dispensing actually determines the pre-dispensing path by drawing coordinates of the dots and heights of the dispensing valves, the initial position and the end position of the matrix, and the number of X rows and the number of Y rows.

Compared with the prior art, the invention has the advantages that the coordinates of the glue hanging detection position are arranged at the appointed position of the equipment, the initial position and the end position of the matrix are arranged, the number of the matrix XY is arranged, then the valve body can carry out matrix dotting, the camera judges whether the glue point is normal according to the dotting area, if the glue point is normal, the glue point is continuously dispensed, the equipment automatically carries out the actions of glue cleaning and glue discharging, the glue is pre-dispensed again and is normally and continuously dispensed, after NG is detected for the first time, the equipment carries out the work of glue cleaning and glue discharging again, the glue dispensing is pre-dispensed again, after the glue dispensing is finished, the glue dispensing is normally dispensed after the qualified detection, the detection is NG, the processes are repeated, when the NG number of detection reaches the set value, the equipment alarms, at the moment, the operator processes are carried out by the operator, the smooth glue discharging of the valve body is ensured, the accurate degree of glue dispensing is ensured by adopting the way of pre-dispensing, and the occurrence of defective products can be effectively avoided, has good market application value.

Drawings

FIG. 1 is a schematic diagram of the control logic of the present invention.

Detailed Description

The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The present invention will be described in detail with reference to the accompanying drawings.

One embodiment as shown in fig. 1: the pre-dispensing logic control is characterized in that the specific logic control flow is as follows: the equipment automatically produces and operates the step; setting an operation interface; the method comprises the steps of performing pre-dispensing before dispensing, spraying set points at a specified position, detecting the state of spraying the glue points by a camera, distinguishing the state of the glue points after dispensing is finished, performing pre-dispensing operation when the glue points are qualified, performing glue cleaning and corner discharging treatment when the glue points are unqualified, cleaning the points after the glue discharging treatment is finished, spraying and positioning at the specified position again, if yes, detecting the glue points by the camera again, performing the pre-dispensing operation continuously if qualified, performing glue dispensing and discharging treatment continuously if unqualified, repeating the step of detecting the glue points by the camera, and giving an alarm by equipment when the unqualified glue points reach the set times.

Embodiment 2 is based on embodiment 1, and the setting of the operation interface includes starting a pre-dispensing function, an automatic glue cleaning function, an automatic glue discharging function, and a laser correction position function; after the automatic glue cleaning function detects NG for the first time, starting an automatic glue cleaning step, and then removing pre-dispensing; the automatic glue discharging function is used for carrying out the automatic glue discharging step after NG is detected for the first time, then the pre-dispensing is carried out, and the laser correction position function is a pre-dispensing laser detection method.

Embodiment 3 is based on embodiment 1, further including setting a kiss-coating detection position coordinate and setting the number of kiss-coating detection ejection points in the setting of the operation interface, wherein the setting of the kiss-coating detection position coordinate determines a specific position when kiss-coating is detected; whether the number of the glue spraying points of the valve body is normal or not is detected by setting the glue hanging detection spraying points.

Embodiment 4 on the basis of embodiment 1, performing pre-dispensing before dispensing requires setting a matrix start position, setting a matrix end position, setting XY numbers, and lifting a matrix; setting the initial position of the matrix and the final position of the matrix, setting the number of points of an XY axis of the matrix, setting the height of a dispensing valve and the valve opening time of the dispensing valve during dispensing, and starting dispensing detection.

Embodiment 5 is based on embodiment 4, when the dispensing detection is started, the dispensing interval time of the dispensing detection mode is started, the dispensing is performed according to the set time, and the dispensing is performed according to the set product number according to the number of the dispensing intervals.

Embodiment 6 is based on embodiment 4, wherein the matrix extraction is performed according to the set starting point, end point and XY number, and the number is based on the number of dots per shot of the pre-dispensing.

Embodiment 7 is based on embodiment 1, in the camera desmear detection state, further including adjusting a light source of the camera, performing binarization processing on a picture taken by the camera, performing inversion setting on binarization of the picture after the binarization processing is performed on the picture, and performing filling setting on the picture at the same time.

Embodiment 8 on the basis of embodiment 1, the pre-dispensing actually determines a pre-dispensing path by depicting coordinates of a dot and a height of a dispensing valve, a start position and a matrix end position of the matrix, and the number of X rows and the number of Y rows.

Further, the control setting process specifically includes: setting a coordinate of a kiss-coating detection position, setting the number of kiss-coating detection injection points, entering a kiss-coating detection setting interface, adjusting a camera light source, performing binarization processing on a picture, performing inversion setting on the binarization of the picture, performing filling setting on the picture, performing grabbing setting on the kiss-coating points, performing range setting on a grabbing area, setting a matrix starting position, setting a matrix end point position, setting the number of matrixes XY and extracting the matrixes.

Further, a glue hanging instruction is entered into the glue hanging detection setting interface, a glue hanging detection instruction is added to the program instruction according to a glue hanging detection mode, and after parameters are edited, the program instruction is clicked for storage; dispensing can be carried out only when the glue spraying of the valve body is ensured to be similar to the actual amount; after the pre-dispensing is finished, the valve body returns to the last point to perform glue hanging detection, after NG is detected for the first time, the device gives an alarm, after the valve body is determined by clicking to perform glue cleaning and glue discharging, the pre-dispensing is performed again, after OK, the dispensing is performed, and after NG, the device stops.

Further, as time goes on, the blank matrixes on the pre-dispensing are fewer and fewer; when the matrix does not meet the requirement of the large dots, the equipment alarms to indicate that the matrix is full, and after the popup window is performed and the operation is finished after the original wiping is finished, the glue dispensing can be continued.

Compared with the prior art, the invention has the advantages that the coordinates of the glue hanging detection position are arranged at the appointed position of the equipment, the initial position and the end position of the matrix are arranged, the number of the matrix XY is arranged, then the valve body can carry out matrix dotting, the camera judges whether the glue point is normal according to the dotting area, if the glue point is normal, the glue point is continuously dispensed, the equipment automatically carries out the actions of glue cleaning and glue discharging, the glue is pre-dispensed again and is normally and continuously dispensed, after NG is detected for the first time, the equipment carries out the work of glue cleaning and glue discharging again, the glue dispensing is pre-dispensed again, after the glue dispensing is finished, the glue dispensing is normally dispensed after the qualified detection, the detection is NG, the processes are repeated, when the NG number of detection reaches the set value, the equipment alarms, at the moment, the operator processes are carried out by the operator, the smooth glue discharging of the valve body is ensured, the accurate degree of glue dispensing is ensured by adopting the way of pre-dispensing, and the occurrence of defective products can be effectively avoided, has good market application value.

The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.