Liquid supply module and inspection equipment

Abstract

The utility model relates to the technical field of appearance defect inspection equipment, and discloses a liquid supply module and inspection equipment, which can control liquid supply quantity and liquid supply concentration, have high automation degree and are suitable for realizing automatic detection of workpieces so as to meet commercialized production requirements. The liquid supply module comprises a spraying module suitable for spraying to the surface of a workpiece; the wiping module is suitable for wiping the workpiece surface; the liquid storage barrel is suitable for storing liquid (such as alcohol or water), and a liquid level sensor and a concentration sensor are arranged in the liquid storage barrel; the liquid storage barrel is communicated with the spraying module and the wiping module to supply liquid to the spraying module and the wiping module; the control module is electrically connected with the liquid level sensor and the concentration sensor, so that the liquid level information of the liquid in the liquid storage barrel is obtained through the liquid level sensor, and the concentration information of the liquid in the liquid storage barrel is obtained through the concentration sensor; the alarm module is electrically connected with the control module, and when the liquid level information is lower than the liquid level threshold value and / or the concentration information is out of the concentration threshold value range, the alarm module is suitable for giving an alarm.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection equipment for appearance defects, and particularly relates to a liquid supply module and inspection equipment. Background Art

[0002] At present, for reasons such as aesthetics and anti-oil pollution, the surfaces of glass screens, etc. need to be coated. However, in the coating process, situations such as coating omission or uneven coating often occur. In related technologies, usually, a liquid such as alcohol is applied to the coated surface of a workpiece, and the coating quality of the workpiece is detected through the different performance characteristics of the liquid in the qualified coating area and the coating defect area.

[0003] In related technical solutions, usually, a simple alcohol supply device is used to apply alcohol to the surface of a workpiece. The alcohol supply device includes an alcohol tank, a wiping brush, and a manipulator. The manipulator drives the wiping brush to dip alcohol and then apply it to the surface of the workpiece. However, the alcohol supply device in related technologies cannot control the amount and concentration of alcohol, and manual inspection of the alcohol supply situation is required. The degree of automation is low and it cannot be applied to high-automation detection equipment. Summary of the Utility Model

[0004] The purpose of this application is to provide a liquid supply module and inspection equipment to solve problems such as that the existing liquid supply devices such as alcohol cannot control the liquid supply amount and liquid supply concentration, manual inspection of the liquid supply situation is required, the degree of automation is low, and it cannot be applied to high-automation detection equipment.

[0005] In the first aspect, the utility model provides a liquid supply module, including: a spraying module adapted to spray the surface of a workpiece; a wiping module adapted to wipe the surface of the workpiece; a liquid storage barrel in which a liquid is adapted to be stored, and a liquid level sensor and a concentration sensor are arranged in the liquid storage barrel; the liquid storage barrel is communicated with the spraying module and the wiping module to supply liquid to the spraying module and the wiping module; a control module electrically connected to the liquid level sensor and the concentration sensor, the control module is adapted to obtain the liquid level information of the liquid in the liquid storage barrel through the liquid level sensor, and further, the control module is adapted to obtain the concentration information of the liquid in the liquid storage barrel through the concentration sensor; an alarm module electrically connected to the control module, when the liquid level information is lower than the liquid level threshold and / or the concentration information is outside the concentration threshold range, the alarm module is adapted to issue an alarm.

[0006] In an optional embodiment, the liquid storage barrel includes a connected barrel body and a cover body, and the liquid level sensor and the concentration sensor are arranged on the cover body.

[0007] In an optional embodiment, the spraying module includes a spraying valve and a spraying controller, the spraying controller is connected to the spraying valve, and the spraying controller is adapted to control the opening and closing and the opening degree of the spraying valve; and further, the spraying controller is electrically connected to the control module.

[0008] In an alternative embodiment, a plurality of spray valves are provided.

[0009] In an alternative embodiment, the liquid supply module further includes a supply pump, which is communicatively connected between the wiping module and the liquid storage barrel.

[0010] In an alternative embodiment, the liquid supply module further includes a flow meter, which is arranged on the communication pipeline between the wiping module and the supply pump.

[0011] In an alternative embodiment, the wiping module includes a wiping cloth and a wetting component. The wiping cloth is movably arranged on the wetting component, and the wetting component is communicatively connected with the supply pump.

[0012] In an alternative embodiment, the wetting component includes a liquid supply cavity and pinch rollers. The wiping cloth is movably threaded between the liquid supply cavity and the pinch rollers. The liquid supply cavity is communicatively connected with the supply pump and is adapted to release liquid to the wiping cloth.

[0013] In an alternative embodiment, a plurality of wiping modules and a plurality of supply pumps are provided. The plurality of supply pumps are all communicatively connected with the liquid storage barrel, and the plurality of supply pumps are respectively connected to the plurality of wiping modules.

[0014] In a second aspect, the present utility model further provides an inspection device, including: the liquid supply module as described above.

[0015] By using the technical solution of the present utility model, it has at least the following advantages:

[0016] 1. The control module monitors the liquid volume and concentration in the liquid storage barrel in real time through the liquid level sensor and the concentration sensor. When the liquid volume is too low or the concentration exceeds the standard, the alarm module can issue an alarm in time, so as to facilitate timely replenishment of liquid or adjustment of the liquid concentration without manual inspection. The liquid supply module arranged in this way can not only be reliably applied in a highly automated detection device, but also ensure the stability and controllability of the liquid supply volume and concentration in the spray module and the wiping module, so as to avoid situations such as too little liquid volume or excessive concentration, which may affect the detection effect of the workpiece.

[0017] 2. The liquid supply module uses a spray valve to spray liquid. Compared with the traditional manual wiping or mechanical wiping structure for surface coating, the spray uniformity and reliability are higher, which is beneficial to improving the detection effect and detection efficiency of the workpiece.

[0018] 3. The liquid supply module uses a spray controller to control the opening and closing and the opening degree of the spray valve, and can adjust the air pressure, spray frequency, etc. of the spray valve. That is, the spray volume is controlled by adjusting the air pressure size, and the spraying interval is adjusted by controlling the frequency, so that it can be compatible with various requirements and improve the applicability.

[0019] 4. Supply liquid to the wiping cloth of the wiping module through a supply pump, and monitor the liquid supply volume through a flow meter to ensure that the wiping cloth is fully wetted and avoid the situation where the wiping cloth is not wetted locally.

[0020] 5. The liquid storage bucket supplies multiple spray valves and multiple wiping modules simultaneously, and the control module can accurately control the liquid supply volume and concentration, facilitating the realization of multi-line full-automatic detection of workpieces without manual participation and facilitating adaptation to commercial production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a liquid supply module according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic structural diagram of a spray module and a control module according to an embodiment of the present invention;

[0024] Figure 3 It is a schematic structural diagram of an inspection device according to an embodiment of the present invention.

[0025] Description of the reference numerals:

[0026] 1. Spray module; 11. Spray valve; 111. Liquid inlet; 112. Air inlet; 113. Air outlet; 12. Spray controller; 121. Air inlet interface; 122. Air outlet interface; 2. Wiping module; 21. Wiping head; 22. Wetting assembly; 221. Liquid supply cavity; 222. Pinch roller; 3. Liquid storage bucket; 31. Barrel body; 32. Cover body; 33. Liquid level sensor; 4. Control module; 5. Alarm module; 6. Supply pump; 7. Workpiece; 8. Detection station. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] The following will be combined withFigures 1 to 3 , describe embodiments of the present utility model.

[0029] On the one hand, the present utility model provides a liquid supply module, as Figure 1 shown. The liquid supply module specifically includes a spraying module 1, a wiping module 2, a liquid storage barrel 3, a control module 4, and an alarm module 5.

[0030] Specifically, the liquid storage barrel 3 is adapted to store liquids, such as alcohol, water, or other liquids, and a liquid level sensor 33 and a concentration sensor are provided in the liquid storage barrel 3. The liquid storage barrel 3 is communicated with the spraying module 1 and the wiping module 2 to supply liquids to the spraying module 1 and the wiping module 2. The spraying module 1 sprays the liquid in the liquid storage barrel 3 onto the surface of the workpiece 7, and the wiping module 2 wipes the surface of the workpiece 7 with the liquid in the liquid storage barrel 3, so as to realize the appearance detection of the workpiece 7, such as the detection of the coating quality, through different performance characteristics of the liquid on the surface of the workpiece 7. The control module 4 is electrically connected to the above-mentioned liquid level sensor 33 and the concentration sensor. The control module 4 is adapted to obtain the liquid level information of the liquid in the liquid storage barrel 3 through the liquid level sensor 33, and further, the control module 4 is adapted to obtain the concentration information of the liquid in the liquid storage barrel 3 through the concentration sensor. The alarm module 5 is electrically connected to the control module 4. When the liquid level information is lower than the liquid level threshold and / or the concentration information is outside the concentration threshold range, the alarm module 5 is adapted to issue an alarm to prompt replenishing the liquid in the liquid storage barrel 3 or adjusting the liquid concentration.

[0031] In this embodiment, the control module 4 monitors the liquid volume and concentration in the liquid storage barrel 3 in real time through the liquid level sensor 33 and the concentration sensor. When the liquid volume is too small or the concentration exceeds the standard, the alarm module 5 issues an alarm in time, without manual inspection. It can not only be reliably applied in high-automatic detection equipment, but also ensure the stability and controllability of the liquid supply volume and concentration in the spraying module 1 and the wiping module 2, so as to avoid the situation that the liquid volume is too small or the concentration exceeds the standard, affecting the detection effect of the workpiece 7.

[0032] Exemplarily, the liquid storage barrel 3 includes a barrel body 31 and a cover body 32 which are connected. The liquid level sensor 33 and the concentration sensor are arranged on the cover body 32. Exemplarily, the connection between the barrel body 31 and the cover body 32 of the liquid storage barrel 3 is detachable, such as snap connection, bolt connection, etc., so as to facilitate the installation of the liquid level sensor 33 and the concentration sensor on the cover body 32. Exemplarily, the liquid storage barrel 3 can be made of stainless steel.

[0033] Exemplarily, the liquid level sensor 33 can be a static pressure liquid level sensor, an optoelectronic liquid level sensor, an ultrasonic liquid level sensor, etc. Exemplarily, the concentration sensor can be a conductivity concentration sensor, an ultrasonic concentration sensor, a radioactive concentration sensor, etc. The present application does not specifically limit the types of the liquid level sensor 33 and the concentration sensor, and the installation positions of the liquid level sensor 33 and the concentration sensor in the liquid storage barrel 3 can be adaptively adjusted according to the types, as long as the measurement of the liquid level and the concentration can be achieved.

[0034] In addition, the present application does not specifically limit the liquid level threshold and the concentration threshold range in the liquid storage barrel 3, as long as the detection requirements of the workpiece 7 are met. Exemplarily, the liquid level threshold is the lowest liquid level value allowed in the liquid storage barrel 3, and the concentration threshold range can be from 0 to the highest concentration value of the liquid allowed for detection.

[0035] Exemplarily, the above-mentioned alarm module 5 can be an audible and visual alarm, etc. The present application does not specifically limit the types of the alarm module 5, as long as it can be electrically connected to the control module 4 to achieve the corresponding alarm function.

[0036] Exemplarily, the control module 4 can be an industrial computer. In addition to monitoring the liquid supply amount and the concentration, it can also be electrically connected to each module to control the execution actions of each module and achieve full automation control.

[0037] Further, as Figure 2 shown, the above-mentioned spraying module 1 includes a spraying valve 11 and a spraying controller 12. The spraying controller 12 is connected to the spraying valve 11. The spraying controller 12 is adapted to control the opening and closing and the opening degree of the spraying valve 11, and the spraying controller 12 is electrically connected to the control module 4. The control module 4 is adapted to monitor the working state of the spraying valve 11 in real time and accurately control each working parameter of the spraying valve 11.

[0038] Specifically, as Figure 2 shown, the spraying valve 11 includes a liquid inlet 111, a gas inlet 112 and a gas outlet 113. The spraying controller 12 includes a gas inlet interface 121 and a gas outlet interface 122. The liquid inlet 111 is communicated with the above-mentioned liquid storage barrel 3, the gas inlet 112 is communicated with the gas inlet interface 121, and the gas outlet 113 is communicated with the gas outlet interface 122. The connection between the liquid inlet 111 and the liquid storage barrel 3, the connection between the gas inlet 112 and the gas inlet interface 121, and the connection between the gas outlet 113 and the gas outlet interface 122 can all be connected and communicated through connecting pipelines such as connecting tubes.

[0039] The spraying controller can control the opening and closing and the opening degree of the spraying valve 11 by controlling the gas inlet amount of the gas inlet interface 121 and the gas outlet amount of the gas outlet interface 122. The control module 4 can adjust the air pressure, the working frequency, the liquid outlet amount and the spraying width of the spraying valve 11 through the spraying controller 12 (the spraying width is Figure 2parameters such as D) in []. Exemplarily, the air pressure of the spray valve 11 can be 4.8 - 6.2 bar, the working frequency ≥ 400 times / min, the liquid output can be 0.01 - 0.5 ml / s, and the atomization width D can be 100 mm. It can be understood that the present application does not specifically limit the above parameters, and the specific values of the above parameters depend on the type of the workpiece 7 and the detection beat, etc.

[0040] Exemplarily, a regulating valve can also be provided on the connecting pipeline between the liquid inlet 111 and the liquid storage barrel 3. The regulating valve can be electrically connected to the control module 4, and the control module 4 can adjust the amount of liquid input into the spray valve 11 through this regulating valve. Alternatively, an adjusting structure is provided on the connecting pipeline between the liquid inlet 111 and the liquid storage barrel 3, and by manually adjusting this adjusting structure, the amount of liquid input into the spray valve 11 is adjusted.

[0041] Exemplarily, multiple spray valves 11 can be provided, and the control module 4 can simultaneously control multiple spray valves 11 through the spray controller 12 to improve work efficiency.

[0042] Further, in some embodiments, as Figure 1 shown, the liquid supply module further includes a supply pump 6. The supply pump 6 is communicatively connected between the wiping module 2 and the liquid storage barrel 3 to facilitate pumping the liquid in the liquid storage barrel 3 into the wiping module 2. Exemplarily, the supply pump 6 can be a peristaltic pump, a screw pump, etc. The present application does not specifically limit the type of the supply pump 6, as long as it can achieve the function of supplying liquid to the wiping module 2.

[0043] Exemplarily, both between the liquid storage barrel 3 and the supply pump 6 and between the supply pump 6 and the wiping module 2 can be connected and communicated through a connecting pipe or other communicating pipelines. A flow meter is further provided on the communicating pipeline between the wiping module 2 and the supply pump 6. The flow meter is adapted to monitor the liquid flow rate input into the wiping module 2 in real time. Exemplarily, the flow meter can also be electrically connected to the control module 4, and the liquid flow rate is automatically monitored through the control module 4. The present application does not specifically limit the type of the flow meter, as long as it can achieve the function of monitoring the liquid flow rate.

[0044] Specifically, the wiping module 2 includes a wiping head 21, a wiping cloth, and a wetting component 22. The wiping cloth is wound around the wiping head 21 to wipe the workpiece 7. The wetting component 22 is communicatively connected to the supply pump 6, and the wiping cloth is movably arranged on the wetting component 22 to wet the wiping cloth.

[0045] Specifically, the wiping module 2 further includes a transmission assembly. The wiping cloth is wound around the rotating assembly, the wetting assembly 22, and the wiping head 21. The transmission assembly is adapted to drive the wiping cloth to move. The wetting assembly 22 fully wets the wiping cloth during the movement of the wiping cloth, so that the wiping cloth wipes the workpiece 7 in a state of being saturated with liquid. Exemplarily, the transmission assembly may include a driving member, a feeding shaft, and a receiving shaft. Two ends of the wiping cloth are respectively wound around the feeding shaft and the receiving shaft, and the driving member is adapted to drive the feeding shaft and the receiving shaft to rotate.

[0046] Specifically, the wetting assembly 22 includes a liquid supply cavity 221 and pinch rollers 222 arranged side by side. The wiping cloth is movably disposed between the liquid supply cavity 221 and the pinch rollers 222. The liquid supply cavity 221 is communicated with the supply pump 6 and is adapted to release liquid to the wiping cloth. Among them, the supply pump 6 pumps a predetermined amount and a predetermined concentration of liquid into the liquid supply cavity 221. The liquid supply cavity 221 is provided with a liquid supply port communicated with the inside, and the liquid can flow out through the liquid supply port. There is a small gap between the liquid supply cavity 221 and the pinch rollers 222, which allows the wiping cloth to be disposed between the liquid supply cavity 221 and the pinch rollers 222 to ensure that the wiping cloth is always in full contact with the liquid supply cavity 221 during movement, thereby ensuring the wetting effect of the wiping cloth. Exemplarily, the liquid supply cavity 221 may be arranged in a cylindrical shape, and a plurality of liquid supply ports are provided on one side of the liquid supply cavity 221 facing the pinch rollers 222, and the plurality of liquid supply ports are arranged at intervals along the axial direction of the liquid supply cavity 221.

[0047] Exemplarily, a plurality of wiping modules 2 and supply pumps 6 may be provided. The plurality of supply pumps 6 are all communicated with the liquid storage barrel 3, and the plurality of supply pumps 6 are respectively connected to the plurality of wiping modules 2. The liquid storage barrel 3 can supply the plurality of wiping modules 2 simultaneously through the plurality of supply pumps 6, further improving the working efficiency.

[0048] On the other hand, the present invention also provides an inspection device, including a liquid supply module, and the liquid supply module may be the liquid supply module described in any of the above embodiments. Since the inspection device of the present invention includes the above liquid supply module, the inspection device of the present invention has the same technical effects as the liquid supply module of the present invention, which will not be elaborated here.

[0049] As Figure 3 shown, the inspection device may include two detection pipelines arranged in parallel, and two detection stations 8 are arranged on each inspection pipeline. Correspondingly, the liquid supply module may include four spray valves 11 and four wiping modules 2. The four spray valves 11 and the four wiping modules 2 are respectively arranged at the four detection stations 8 of the two detection pipelines to realize double-line and double-station detection, improving the detection efficiency and detection effect. Exemplarily, at each detection station 8, the spray valve 11 is adjacent to the wiping module 2, and the spray valve 11 is located upstream of the wiping module 2.

[0050] Understandably, the present application does not specifically limit the number of spray valves 11 and wiping modules 2 provided. The number of spray valves 11 and wiping modules 2 provided can be adaptively adjusted according to the detection requirements and the layout mode of the inspection equipment.

[0051] The technical solution of the present utility model has at least the following advantages:

[0052] 1. The control module 4 monitors the liquid volume and concentration in the liquid storage barrel 3 in real time through the liquid level sensor 33 and the concentration sensor. When the liquid volume is too small or the concentration exceeds the standard, the alarm module 5 can issue an alarm in time, so as to facilitate timely liquid replenishment or liquid concentration adjustment without manual inspection. The liquid supply module arranged in this way can not only be reliably applied in high-automatic detection equipment, but also ensure the stability and controllability of the liquid supply volume and concentration in the spray module 1 and the wiping module 2, so as to avoid the situation that the liquid volume is too small or the concentration exceeds the standard, affecting the detection effect of the workpiece 7, etc.

[0053] 2. The liquid supply module uses the spray valve 11 to spray liquid. Compared with the traditional manual wiping or mechanical wiping structure for surface coating, the spray uniformity and reliability are higher, which is conducive to improving the detection effect and detection efficiency of the workpiece 7.

[0054] 3. The liquid supply module uses the spray controller 12 to control the opening and closing and the opening degree of the spray valve 11, and can adjust the air pressure, spray frequency, etc. of the spray valve 11, that is, control the spray volume by adjusting the air pressure size, and adjust the spraying interval by controlling the frequency, so that it can be compatible with various requirements and improve the applicability.

[0055] 4. The liquid is supplied to the wiping cloth of the wiping module 2 through the supply pump 6, and the liquid supply volume is monitored through the flow meter to ensure that the wiping cloth is fully wetted and avoid the situation that the local part of the wiping cloth is not wetted.

[0056] 5. The liquid storage barrel 3 supplies multiple spray valves 11 and multiple wiping modules 2 at the same time, and the control module 4 can accurately control the liquid supply volume and concentration, which is convenient for realizing multi-line full-automatic detection of the workpiece 7 without manual participation and is convenient for adapting to the commercial production requirements.

[0057] Although the embodiments of the present utility model have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A liquid supply module, characterized in that, Comprising: A spray module (1), adapted to spray the surface of a workpiece (7); A wiping module (2), adapted to wipe the surface of the workpiece (7); A liquid storage barrel (3), in which a liquid is adapted to be stored, and a liquid level sensor (33) and a concentration sensor are provided in the liquid storage barrel (3); the liquid storage barrel (3) is communicated with the spray module (1) and the wiping module (2) to supply liquid to the spray module (1) and the wiping module (2); A control module (4), electrically connected to the liquid level sensor (33) and the concentration sensor, the control module (4) is adapted to obtain the liquid level information of the liquid in the liquid storage barrel (3) through the liquid level sensor (33), and the control module (4) is adapted to obtain the concentration information of the liquid in the liquid storage barrel (3) through the concentration sensor; An alarm module (5), electrically connected to the control module (4), when the liquid level information is lower than a liquid level threshold and / or the concentration information is outside a concentration threshold range, the alarm module (5) is adapted to issue an alarm.

2. The liquid supply module according to claim 1, wherein The liquid storage barrel (3) includes a connected barrel body (31) and a cover body (32), and the liquid level sensor (33) and the concentration sensor are arranged on the cover body (32).

3. The liquid supply module according to claim 1, wherein The spray module (1) includes a spray valve (11) and a spray controller (12), the spray controller (12) is connected to the spray valve (11), and the spray controller (12) is adapted to control the opening and closing and the opening degree of the spray valve (11); and the spray controller (12) is electrically connected to the control module (4).

4. The liquid supply module according to claim 3, characterized in that, A plurality of the spray valves (11) are provided.

5. The liquid supply module according to any one of claims 1-4, characterized in that, The liquid supply module further includes a supply pump (6), and the supply pump (6) is communicatively arranged between the wiping module (2) and the liquid storage barrel (3).

6. The liquid supply module according to claim 5, characterized in that, The liquid supply module further includes a flow meter, and the flow meter is arranged on the communication pipeline between the wiping module (2) and the supply pump (6).

7. The liquid supply module according to claim 5, wherein, The wiping module (2) includes a wiping cloth and a wetting component (22), the wiping cloth is movably arranged on the wetting component (22), and the wetting component (22) is communicatively arranged with the supply pump (6).

8. The liquid supply module according to claim 7, wherein The wetting component (22) includes a liquid supply cavity (221) and pinch rollers (222), the wiping cloth is movably threaded between the liquid supply cavity (221) and the pinch rollers (222), the liquid supply cavity (221) is communicated with the supply pump (6), and is adapted to release liquid to the wiping cloth.

9. The liquid supply module according to claim 5, characterized in that A plurality of the wiping modules (2) and the supply pumps (6) are provided, and the plurality of supply pumps (6) are all communicatively arranged with the liquid storage barrel (3), and the plurality of supply pumps (6) are respectively connected to the plurality of wiping modules (2).

10. A testing device, characterized in that, Comprising: The liquid supply module according to any one of claims 1-9.

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