Nozzle cleaning equipment

Abstract

The utility model provides nozzle cleaning equipment. The nozzle cleaning equipment comprises a support; the at least two spraying pipes are arranged at a first position and a second position respectively, the spraying pipes are rotatably erected on the support through a spraying rotating device, and each spraying pipe is provided with a plurality of nozzles in the length direction of the spraying pipe; the shooting device is movably arranged on the first guide rail and used for collecting the spraying opening degree of the nozzle arranged on the spraying pipe at the first position; the blowing device is movably arranged on the second guide rail and is close to the spraying pipe at the second position; the main controller is used for judging whether the spray nozzle is blocked or not according to the spraying opening degree of the spray nozzle, and when the spray nozzle is blocked, the spray pipe at the first position and the spray pipe at the second position are switched through the spray rotating device; the spraying opening degree of the nozzles can be detected in real time, when the spraying pipe at the first position is blocked, the two spraying pipes are switched in time, and the cleaning efficiency of the nozzles is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of photovoltaics, and particularly relates to a nozzle cleaning device. BACKGROUND

[0002] In the field of photovoltaics, with the continuous increase of silicon wafer production capacity and the continuous increase of requirements for product efficiency and yield, the requirements for wet process equipment are gradually increasing. With the increase of silicon wafer production capacity, the length and width of the wet process equipment will also be lengthened and widened accordingly, and the corresponding spray nozzles of the wet process equipment will also be increased accordingly. At present, the number of nozzles of the wet process equipment has reached thousands, and the spraying effect directly affects the efficiency and yield of the silicon wafer. Poor spraying will cause broken pieces and other adverse phenomena.

[0003] The current method for detecting whether the nozzle is blocked is to observe the spraying effect of the nozzle one by one with the naked eye or to disassemble and confirm whether the nozzle is blocked one by one. Manual disassembly of the poor spraying nozzle for confirmation and cleaning not only wastes time but also affects the production efficiency of the production line. CONTENT OF THE UTILITY MODEL

[0004] The application provides a nozzle cleaning device to solve the problem that the prior art can only detect whether the nozzle is blocked and clean it by manual operation.

[0005] In order to solve the above technical problems, the application provides a nozzle cleaning device, which comprises:

[0006] a support;

[0007] at least two spray pipes, respectively arranged at a first position and a second position, the spray pipes being rotatably arranged on the support through a spray rotating device, and each of the spray pipes being provided with a plurality of nozzles along the length direction thereof;

[0008] a shooting device movably arranged on a first guide rail and used for collecting the spraying opening degree of the nozzles arranged on the spray pipes at the first position;

[0009] a blowing device movably arranged on a second guide rail and close to the spray pipes at the second position;

[0010] a main controller, the main controller being used for judging whether the nozzles are blocked according to the spraying opening degree of the nozzles, and switching the spray pipes at the first position and the second position through the spray rotating device when there is blockage, so that the blowing device blows and cleans the blocked nozzles on the spray pipes at the second position after rotation.

[0011] As a further improvement of the application, the first guide rail is provided with a first driving member, a first output shaft of the first driving member being connected with the shooting device and used for driving the shooting device to move on the first guide rail.

[0012] As a further improvement of the present application, a first distance sensor is arranged on the first driving member or the photographing device, and is used to collect the position of the photographing device on the first guide rail, so as to determine the position of the nozzle currently photographed by the photographing device.

[0013] As a further improvement of the present application, a second driving member is arranged on the second guide rail, and a second output shaft of the second driving member is connected with the blowing device, and is used to drive the blowing device to move on the second guide rail.

[0014] As a further improvement of the present application, a second distance sensor is arranged on the second driving member or the blowing device, and is used to collect the position of the blowing device on the second guide rail, so as to move the blowing device to the position corresponding to the blocked nozzle by the second driving member. As a further improvement of the present application, a blowing pipe in communication with the blowing device is arranged on the second guide rail, and a pneumatic valve and a blowing gun electromagnetic valve are arranged on the blowing pipe.

[0015] The blowing gun electromagnetic valve is used to control the opening and closing of the pneumatic valve, so as to adjust the blowing state of the blowing device.

[0016] As a further improvement of the present application, the spraying rotating device comprises a rotating driving member and a hydraulic slip ring arranged between the rotating driving member and the plurality of spraying pipes.

[0017] The hydraulic slip ring is used to communicate the main pipe and rotate with the spraying pipes, so as to transmit the liquid in the main pipe to the spraying pipes located at the first position.

[0018] As a further improvement of the present application, the support comprises a first support rod and a second support rod arranged at two ends of the spraying pipe.

[0019] The two ends of the plurality of spraying pipes are connected by connecting rods, and the two connecting rods are provided with rotating shafts at the ends away from the spraying pipes, and the two rotating shafts are respectively penetrated through the first support rod and the second support rod, so as to rotatably support the plurality of spraying pipes between the first support rod and the second support rod.

[0020] As a further improvement of the present application, the first guide rail, the second guide rail and the plurality of spraying pipes are arranged in parallel, and the height of the second guide rail is higher than the height of the spraying pipes located at the second position.

[0021] As a further improvement of the present application, the main controller is a PLC controller.

[0022] The shooting device, the blowing device, the first driving member, the second driving member, the first distance measuring sensor, the second distance measuring sensor, the air gun blowing electromagnetic valve and the rotary driving member are connected with the PLC controller in a wired / wireless manner.

[0023] Compared with the prior art, the nozzle cleaning device provided by the application can collect the spraying opening degrees of a plurality of nozzles through the movable shooting device, transmit the collected spraying opening degrees to the host controller, compare the spraying opening degrees with the preset angle values by the host controller to determine whether the nozzles are blocked, and when it is determined that the nozzles in the current collected and shot spray pipes are blocked, the spraying rotary device is used to rotate at least two spray pipes, the position of the blowing device is adjusted to move to the position of the blocked nozzle for blowing cleaning, so that the spray pipes can be switched in time, and the influence of the wasted time of shutdown cleaning on the production line is avoided. The application is different from the traditional manual observation and cleaning of blocked nozzles, can save labor cost, and improves the working efficiency of the machine. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is a structural schematic view of a nozzle cleaning device provided in the prior art;

[0026] Figure 2 is a structural schematic view of a first guide rail in the nozzle cleaning device provided by the embodiment of the application;

[0027] Figure 3 is a structural schematic view of a second guide rail in the nozzle cleaning device provided by the embodiment of the application;

[0028] Figure 4 is a structural schematic view of a nozzle spraying opening degree in the nozzle cleaning device provided by the embodiment of the application;

[0029] Figure 5 is a structural schematic view of a nozzle cleaning device provided by the embodiment of the application;

[0030] Figure 6 is a structural schematic view of a connecting rod in the nozzle cleaning device provided by the embodiment of the application;

[0031] Figure 7 is a functional module diagram of the nozzle cleaning device provided by the embodiment of the application;

[0032] Explanation of reference signs:

[0033] 10 - spray pipe; 101 - connecting rod; 102 - rotating shaft; 11 - nozzle; 12 - spray rotating device; 121 - rotating driving member; 122 - hydraulic slip ring; 13 - main pipe;

[0034] 20 - shooting device; 21 - first guide rail; 22 - first driving member;

[0035] 30 - blowing device; 31 - second guide rail; 32 - second driving member;

[0036] 40 - support; 41 - first supporting rod; 42 - second supporting rod. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the embodiments of the present application will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present application, and are not used to limit the embodiments of the present application.

[0038] In the description of the embodiments of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0039] In order to make the description of the present disclosure more detailed and complete, the following describes the embodiments of the embodiments of the present application in the embodiments and specific embodiments; but this is not the only form of implementation or use of the specific embodiments of the present application. The embodiments include the features of the specific embodiments and the method steps and their order used to construct and operate these specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and step sequences.

[0040] Please refer to Figure 1 For the structure diagram of the nozzle cleaning device provided in the prior art, it can be observed that the currently used spray pipe 10 is used and cleaned separately, and the spraying effect of the nozzle 11 needs to be observed one by one with the naked eye, or it needs to be confirmed one by one whether the nozzle 11 is blocked, and the staff needs to manually remove the nozzle 11 with poor spraying effect for confirmation and cleaning, which reduces the production efficiency of the production line and causes time cost waste due to cleaning downtime.

[0041] In order to improve the detection and cleaning efficiency of the nozzle 11, please refer to Figures 2-7 The nozzle cleaning device provided in the embodiments of the present application can solve the problem that the prior art can only detect whether the nozzle is blocked and clean the nozzle by manual operation.

[0042] Please refer to Figure 5 The nozzle cleaning device provided in the embodiments of the present application specifically comprises a support 40, a shooting device 20, a blowing device 30, a master controller, and at least two spray pipes 10.

[0043] As an optional embodiment, the at least two spray pipes 10 are arranged at the first position and the second position respectively, and a plurality of nozzles 11 are arranged on each spray pipe 10 along the length direction of the spray pipe 10. The shooting device 20 is movably arranged on the first guide rail 21 to collect the spray opening of the nozzle 11 arranged on the spray pipe 10 at the first position. The blowing device 30 is movably arranged on the second guide rail 31, so that the blowing device 30 is close to the spray pipe 10 at the second position.

[0044] In the embodiments of the present application, the plurality of spray pipes 10 are rotatably arranged on the support 40 by the spray rotating device 12. Since the plurality of nozzles 11 are arranged on each spray pipe 10, when liquid flows through the spray pipe 10, the liquid will be sprayed from the nozzles 11 arranged on the spray pipe 10. Therefore, whether the nozzle 11 is blocked can be determined by detecting the spray opening of the nozzle 11. Of course, in one specific embodiment provided in the present application, liquid flows through the spray pipe 10 at the first position.

[0045] Please refer to Figure 4 In the nozzle cleaning device provided in the embodiments of the present application, the structure diagram of the spray opening of the nozzle is shown in the figure. The left side of the figure shows the spray opening θ1 of the nozzle 11 when the nozzle 11 is not blocked, and the right side of the figure shows the spray opening θ2 of the nozzle 11 when the nozzle 11 is blocked. It can be observed that the spray opening of the nozzle 11 will decrease when the nozzle 11 is blocked. Therefore, the shooting device 20 collects the spray opening of the nozzle 11 when the nozzle 11 sprays liquid, and compares the actually collected spray opening with the preset angle, so as to determine whether the nozzle 11 is blocked.

[0046] Specifically, the present application collects the spray opening degrees of the plurality of nozzles 11 by the movable shooting device 20, transmits the collected spray opening degrees to the main controller, compares the spray opening degrees with the preset angle value by the main controller to determine whether the nozzles 11 are blocked, and when it is determined that the nozzles 11 in the current shooting and collecting spray pipe 10 are blocked, the spray rotating device 12 is used to rotate and switch the spray pipes 10 at the first position and the second position, the position of the air blowing device 30 is adjusted to move to the blocked nozzles 11 of the spray pipe 10 at the second position after rotation to blow and clean, and the first position and the second position of the spray pipe 10 are switched in time for cleaning, so as to avoid the influence of the time wasted by stopping and cleaning on the production line.

[0047] In an optional embodiment, the nozzle cleaning device provided by the present application is further explained by taking an example of only two spray pipes 10 being provided. Figure 5 The two spray pipes 10 provided by the present application include a first spray pipe at the first position and a second spray pipe at the second position. It can be observed that the spray pipe 10 close to the shooting device 20 is the first spray pipe at the first position, and the spray pipe 10 close to the air blowing device 30 is the second spray pipe at the second position.

[0048] In actual application, the main pipe 13 is used to transport liquid to the first spray pipe close to the shooting device 20, so that the liquid is sprayed out of the plurality of nozzles 11 provided in the first spray pipe, and the liquid is not transmitted to the second spray pipe close to the air blowing device 30, that is, the first spray pipe is the currently used spray pipe 10, and the second spray pipe is the standby spray pipe 10.

[0049] At the same time, the shooting device 20 moves on the first guide rail 21 and takes a photo of the spray opening degrees of the plurality of nozzles 11 provided in the first spray pipe, and transmits the collected data to the main controller. The main controller determines whether the first spray pipe has a nozzle 11 blocking condition according to the spray opening degrees. When it is determined that the nozzles 11 are blocked, the first spray pipe and the second spray pipe are rotated and switched by the spray rotating device 12. At this time, the second spray pipe after rotation is located at the first position and becomes the currently used spray pipe 10, and the first spray pipe after rotation is located at the second position and becomes the standby spray pipe 10.

[0050] Meanwhile, the controller 13 needs to stop transmitting liquid to the first spray pipe and instead transmit liquid to the second spray pipe located at the first position, the liquid is sprayed through the plurality of nozzles 11 arranged in the second spray pipe, the blowing device 30 is moved to the nozzle 11 of the first spray pipe located at the second position where the blockage occurs to clean it, and the first spray pipe and the second spray pipe are rotated again after detecting the nozzle 11 blockage in the second spray pipe. Through the above-mentioned way, the first spray pipe and the second spray pipe are rotated and switched.

[0051] It should be noted that when the camera 20 collects the spray opening of the plurality of nozzles 11, it can collect the spray opening of each nozzle 11 in turn, collect the spray opening of a specified nozzle 11, or collect a plurality of nozzles 11 with a specific number such as even number or odd number. The above collection methods are all feasible, and the preferred method is to collect the spray opening of each nozzle 11 in turn to avoid missing and affecting the product quality of the production line. The specific form of the above collection is not limited further.

[0052] Alternatively, the camera 20 can be controlled by the host controller to collect on the first guide rail 21 at certain time intervals, such as 1 h, 2 h, to collect the spray opening of each nozzle 11. Taking 1 h as an example, the host controller compares the spray opening of each nozzle 11 before 1 h and the spray opening of each nozzle 11 after 1 h to determine whether the spray opening has changed within a certain range. When the change range exceeds the preset change range, it is considered that the nozzle 11 is blocked.

[0053] For example, the spray opening of a certain nozzle 11 in the normal spraying state is 90°, and the preset change range is 10°. Therefore, if the spray opening of a certain nozzle 11 is detected to be less than 80° after a preset time, that is, the change range of the nozzle 11 exceeds 10°, the host controller determines that the nozzle 11 is blocked.

[0054] In the above, whether the spray opening of the nozzle 11 is directly compared with the preset angle value to determine whether the nozzle 11 is blocked, or the change range of the nozzle spray opening within the preset time is compared with the preset change range to determine whether the nozzle 11 is blocked, both methods are feasible, and the application does not limit further.

[0055] It should be noted that the master controller provided in the present application can be implemented based on a PLC (Programmable Logic Controller). The above-mentioned collection of the spraying opening degree by the master controller and the comparison of the spraying opening degree with the preset angle value or range are relatively mature existing technologies in the field of master controllers. Therefore, the specific implementation and implementation principle of the master controller will not be described in detail herein.

[0056] It can be understood that the number of the spray pipes 10 can be adjusted according to the actual needs in practical applications, so as to meet the spraying needs of the actual production line. The number of the spray pipes 10 should be at least two, that is, at least two spray pipes 10 are arranged at the first position and the second position, so that the spray pipes 10 can be switched in time, the time cost caused by the cleaning of a single spray pipe 10 is avoided, and the production efficiency of the production line is improved. Of course, it is also feasible to arrange three, four or more spray pipes 10 under the premise of cost, and the present application does not make further limitation in this regard.

[0057] In one specific embodiment provided in the present application, the above-mentioned shooting device 20 can be arranged in the form of a camera or other shooting device 20, and the above-mentioned blowing device 30 can be arranged in the form of an air gun or other blowing device 30 capable of realizing blowing cleaning. The above-mentioned arrangement modes are all feasible.

[0058] Further, in order to more accurately collect the spraying opening degree of the nozzle 11, the position of the shooting device 20 is preferably adjusted so that the shooting device 20 can shoot the main view of the nozzle 11 during the spraying process. In addition, a light shield (not shown in the figure) can be arranged between or above the two spray pipes 10, so as to avoid the influence of external ambient light on the shooting of the shooting device 20 and ensure that the shooting device 20 can accurately collect the spraying opening degree of the nozzle 11.

[0059] As an optional embodiment, please refer to Figure 2 The structure of the first guide rail 21 in the nozzle cleaning device provided in the embodiment of the present application is shown in the figure. The first guide rail 21 is preferably arranged parallel to the spray pipe 10 at the first position. The first drive member 22 is arranged on the first guide rail 21. The first output shaft (not shown in the figure) of the first drive member 22 is connected with the shooting device 20. The shooting device 20 is driven by the first drive member 22 to move on the first guide rail 21.

[0060] Similarly, please refer to Figure 3The structure schematic diagram of the second guide rail 31 in the nozzle cleaning device provided by the embodiment of the present application is shown in the figure, and the second guide rail 31 is preferably arranged in parallel to the spraying pipe 10 at the second position. The second driving member 32 is arranged on the second guide rail 31, and the second output shaft (not shown in the figure) of the second driving member 32 is connected with the corresponding blowing device 30. The blowing device 30 is driven by the second driving member 32 to move on the second guide rail 31.

[0061] For example, the first driving member 22 and the second driving member 32 can be arranged in the form of a screw motor, or can be arranged in the form of an electric push rod. Other driving member arrangement forms that can drive the shooting device 20 to move on the first guide rail 21 and drive the blowing device 30 to move on the second guide rail 31 are also feasible. The specific arrangement form of the first driving member 22 and the second driving member 32 is not limited further in the present application.

[0062] Further, in order to obtain the current position of the shooting device 20 on the first guide rail 21, a first distance measuring sensor is arranged on the shooting device 20 or the first driving member 22. The first distance measuring sensor can be arranged on the shooting device 20 or at the original position of the shooting device 20.

[0063] In order to obtain the current position of the blowing device 30 on the second guide rail 31, a second distance measuring sensor is arranged on the blowing device 30 or the second driving member 32. The second distance measuring sensor can be arranged directly on the blowing sensor or at the original position of the blowing device 30.

[0064] For example, the first distance measuring sensor and the second distance measuring sensor can be arranged in the form of a laser distance measuring sensor. The laser distance measuring sensor generally includes a transmitting end and a receiving end arranged on the same side. The light signal emitted by the transmitting end is reflected to the receiving end after being blocked by an obstacle. The receiving end analyzes and calculates the distance between the obstacle and the transmitting end according to the received light signal, so as to determine the distance between the shooting device 20 and the first driving member 22 and the distance between the blowing device 30 and the second driving member 32.

[0065] It should be noted that when the first ranging sensor is arranged on the photographing device 20, the position of the first ranging sensor should be adjusted to ensure that the light signal emitted by the emitting end of the first ranging sensor is parallel to the first guide rail 21 and passes through the first driving member 22, and when the first ranging sensor is arranged on the first driving member 22, the position of the first ranging sensor should be adjusted to ensure that the light signal emitted by the emitting end of the first ranging sensor is parallel to the first guide rail 21 and passes through the photographing device 20, so that the distance between the photographing device 20 and the position of the origin can be obtained; the arrangement position and principle of the second ranging sensor on the air blowing device 30 or the second driving member 32 are the same as above, and the present application will not be described in detail here.

[0066] In the embodiment of the present application, the position of the photographing device 20 on the first guide rail 21 can be obtained by arranging the first ranging sensor, so that the position of the nozzle 11 currently photographed by the photographing device 20 can be determined. The position of the nozzle 11 is transmitted to the host computer by the first ranging sensor and the spraying opening of the current nozzle 11 is transmitted to the host computer by the photographing device 20. When the host computer determines that there is a blocked nozzle 11 in the spraying pipe 10 currently in use, the spraying pipe 10 is rotated by the spraying rotating device 12, so that the spraying pipe 10 in the blocked state is moved to a position close to the air blowing device 30, and then the air blowing device 30 is moved by the second driving member 32 driven by the host computer. In the process of moving, the position of the air blowing device 30 on the second guide rail 31 is collected in real time by the second ranging sensor, so that the air blowing device 30 can be moved to the position of the blocked nozzle 11 to blow and clean it.

[0067] Of course, the first ranging sensor and the second ranging sensor can also be arranged in the form of a position sensor or other ranging sensor. The laser ranging sensor provided above is only used to explain an optional embodiment and does not limit the present application. Those skilled in the art should know this.

[0068] As an optional embodiment, since the positions of the nozzles 11 on the spraying pipe 10 are relatively fixed, the nozzles 11 can be numbered in advance, and the positions of the nozzles 11 can be obtained in advance. When the nozzles 11 are photographed and collected by the photographing device 20, the photographing device 20 can be directly moved to the position corresponding to the nozzle 11 according to the position of the nozzle 11 obtained in advance for collection. That is, the position of the nozzle 11 to be photographed is determined first, and then the photographing device 20 is directly moved to the position corresponding to the nozzle 11 for collection. This is also feasible, and the present application does not make further limitation.

[0069] As an optional implementation, the application further comprises a blowing pipe connected with the blowing device 30 for supplying gas to the blowing device 30, wherein the blowing pipe is provided with a pneumatic valve and a gas gun blowing electromagnetic valve connected with the main controller, and the main controller controls the opening and closing of the pneumatic valve by controlling the gas gun blowing electromagnetic valve, so as to adjust the blowing state of the blowing device 30 by controlling the gas transmission of the blowing pipe.

[0070] It can be understood that the blowing state of the blowing device 30 includes stopping blowing, starting blowing, increasing blowing intensity or decreasing blowing intensity, etc., which can be realized by controlling the gas pressure in the blowing pipe and the pneumatic valve, and the application will not be described in detail here.

[0071] In an optional embodiment, please continue to refer to Figure 5 The spraying rotating device 12 comprises a rotating driving member 121 and a hydraulic slip ring 122 arranged between the rotating driving member 121 and the plurality of spraying pipes 10, and the hydraulic slip ring 122 is used for connecting the main pipe 13 to transmit the liquid in the main pipe 13 to the spraying pipe 10 close to the shooting device 20, that is, to the spraying pipe 10 currently in use.

[0072] Specifically, the hydraulic slip ring 122 can be in the form of a hydraulic rotary joint or a multi-channel rotary joint, which rotates with the spraying pipe 10 during the rotation of the spraying pipe 10. For example, the hydraulic rotary joint is usually provided with a plurality of independent pipelines inside, which can support different transmission requirements and can transport liquid medium in the actual transmission process, so as to transmit the liquid in the main pipe 13 to the spraying pipe 10 currently in use through the plurality of independent pipelines according to the requirements, and a valve for controlling the opening and closing of each independent pipeline is arranged in each independent pipeline, so as to realize the effect of supplying liquid only to the spraying pipe 10 currently in use. Therefore, the specific structure of the hydraulic slip ring 122 will not be described in detail here, and the related description of the hydraulic rotary joint or the multi-channel rotary joint in the prior art can be referred to.

[0073] Further, the support 40 provided by the present application comprises a first support rod 41 and a second support rod 42 arranged at both ends of the spray pipe 10. Since the hydraulic slip ring 122 can rotate with the plurality of spray pipes 10, the present application connects both ends of the spray pipe 10 through the connecting rod 101. It should be noted that at this time, the ends of the plurality of spray pipes 10 away from the rotary driving member 121 are connected through the connecting rod 101, but the connecting rod 101 is a solid structure, so that the ends of the plurality of spray pipes 10 away from the rotary driving member 121 are in a disconnected state with each other, and the connecting rod 101 near the rotary driving member 121 is internally reserved with a pipe structure (not shown in the figure) that can be connected to the respective independent pipes in the hydraulic slip ring 122. Each pipe structure is independent of each other and directly connected to the corresponding independent pipe in the hydraulic slip ring 122, avoiding the main pipe 13 from being unable to accurately supply liquid to the spray pipe 10 currently located at the first position, and stopping the supply of liquid to the spray pipe 10 located at the second position.

[0074] Please refer to Figure 6 The structure diagram of the connecting rod 101 in the nozzle cleaning device provided by the embodiment of the present application can be observed, and the end of each connecting rod 101 away from the spray pipe 10 is provided with a rotating shaft 102, which penetrates the first support rod 41 and the second support rod 42, respectively. By arranging the rotating shaft 102, the plurality of spray pipes 10 can be rotatably arranged between the first support rod 41 and the second support rod 42. Of course, a bearing can also be arranged at the connection position of the rotating shaft 102 and the first support rod 41 and the second support rod 42 to reduce the wear of the connection position during rotation and improve the smoothness of the rotation action.

[0075] Of course, an angle sensor can also be arranged on the rotary driving member 121 to control the rotation angle of the plurality of spray pipes 10 in the axial direction. When only two spray pipes 10 are arranged, the angle of the two spray pipes 10 rotated by the rotary driving member 121 each time is 180 degrees. When three spray pipes 10 are arranged, the angle of the two spray pipes 10 rotated by the rotary driving member 121 each time is 120 degrees. Similarly, those skilled in the art can control the rotation angle of the spray pipe 10 according to actual needs by other means, and the present application does not make further limitations.

[0076] Preferably, the first guide rail 21, the second guide rail 31 and the spray pipe 10 located at the first position and the second position should be arranged in parallel, when more than two spray pipes 10 are arranged, the first guide rail 21, the second guide rail 31 and the plurality of spray pipes 10 should be arranged in parallel to each other, so as to avoid the error caused by the non-parallel arrangement of the plurality of spray pipes 10 during the position adjustment of the shooting device 20 or the blowing device 30. Meanwhile, the height of the first guide rail 21 should be close to or slightly lower than the height of the spray pipe 10 located at the first position, so as to ensure that the shooting device 20 can more accurately collect the spray opening of the nozzle 11. The height of the second guide rail 31 should be slightly higher than the height of the spray pipe 10 located at the second position, so as to make the distance between the blowing device 30 and the nozzle 11 as close as possible, and the distance should be adjusted to the millimeter level when the condition permits, so as to maximize the blowing and cleaning of the blocked nozzle 11 of the spray pipe 10 located at the second position by the blowing device 30.

[0077] Of course, the first guide rail 21 and the second guide rail 31 can also be arranged at the required position height by the support 40, or can be arranged at the required position height by other structures from the top. The above arrangement of the first guide rail 21 and the second guide rail 31 is feasible, and can be adjusted according to the actual space position of the production line.

[0078] In the embodiment of the present application, please refer to Figure 7 The function module diagram of the nozzle cleaning device provided in the embodiment of the present application is shown in the figure, the above-mentioned main controller is preferably a PLC controller, and the shooting device 20, the blowing device 30, the first driving member 22, the second driving member 32, the rotary driving member 121, the first distance measuring sensor, the second distance measuring sensor, the air gun blowing electromagnetic valve and the PLC controller are connected by wired or wireless mode, so that each sensor or device can perform corresponding action according to the instruction of the main controller, and the blowing and cleaning of the blocked nozzle 11 is completed.

[0079] In one specific embodiment of the present application, a predetermined blowing time can be set, and the blowing and cleaning of the nozzle 11 by the blowing device 30 is realized by controlling the pneumatic valve. For example, the blowing time is set to about 10 seconds, and of course the specific preset time can be adjusted according to the actual requirement, and is not limited to 10 seconds.

[0080] As an optional implementation, when the blowing cleaning is finished, the spray pipe 10 at the second position is still arranged close to the blowing device 30 until the spray pipe 10 at the first position is blocked, when the spray pipe 10 at the second position after blowing cleaning is rotated to the first position, the spray opening of the nozzle 11 after the blocking cleaning needs to be collected by the shooting device 20 first, and the main controller determines that the blocking phenomenon of the nozzle 11 is eliminated and then continues to cooperate with the production line to spray; that is, the nozzle 11 after cleaning can be tested before formal spraying, and the nozzle 11 can be normally sprayed before formal spraying, so as to avoid the influence of the nozzle 11 which is not cleaned in place on the production line.

[0081] It can be understood that any combination of the technical features of the above embodiments can be made, in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0082] The above implementation is only an exemplary implementation for illustrating the principle of the embodiments of the present application, however, the embodiments of the present application are not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the embodiments of the present application, and these modifications and improvements are also considered as the protection scope of the embodiments of the present application.

Claims

1. A nozzle cleaning apparatus, characterized by, The utility model relates to a kind of automatic cleaning device for nozzle of spray pipe, including: Support; At least two spray pipes are respectively arranged in first position and second position, and the spray pipe is rotatably arranged on the support by spray rotating device, and each spray pipe is provided with several nozzles along its length direction; Photographing device is movably arranged on first guide rail, and is used to collect the spray opening of the nozzle arranged on the spray pipe in the first position; Air blowing device is movably arranged on second guide rail and is arranged close to the spray pipe in the second position; Master controller is used to judge whether there is blockage according to the spray opening of the nozzle, and when there is blockage, the spray pipe in the first position and the second position is switched by the spray rotating device, so that the air blowing device blows and cleans the nozzle blocked on the spray pipe in the second position after rotation.

2. The nozzle cleaning apparatus of claim 1, wherein First driving member is arranged on the first guide rail, and the first output shaft of the first driving member is connected with the photographing device, to drive the photographing device to move on the first guide rail.

3. A nozzle cleaning apparatus as claimed in claim 2, wherein First distance measuring sensor is arranged on the first driving member or the photographing device, to collect the position of the photographing device on the first guide rail, to determine the position of the nozzle currently photographed by the photographing device.

4. The nozzle cleaning apparatus of claim 1, wherein Second driving member is arranged on the second guide rail, and the second output shaft of the second driving member is connected with the air blowing device, to drive the air blowing device to move on the second guide rail.

5. A nozzle cleaning apparatus as claimed in claim 4, wherein Second distance measuring sensor is arranged on the second driving member or the air blowing device, to collect the position of the air blowing device on the second guide rail, to move the air blowing device to the position corresponding to the blocked nozzle by the second driving member.

6. The nozzle cleaning apparatus of claim 1, wherein Air blowing pipe is arranged on the second guide rail and communicated with the air blowing device, and pneumatic valve and air gun blowing electromagnetic valve are arranged on the air blowing pipe. The air gun blowing electromagnetic valve is used to control the opening and closing of the pneumatic valve to adjust the blowing state of the air blowing device.

7. The nozzle cleaning apparatus of claim 1, wherein The spray rotating device includes rotating driving member and hydraulic slip ring arranged between the rotating driving member and several spray pipes. The hydraulic slip ring is used to connect main pipe and rotate with the spray pipe, to transmit liquid in the main pipe to the spray pipe in the first position.

8. The nozzle cleaning apparatus of claim 1, wherein, The support includes first support rod and second support rod arranged at both ends of the spray pipe. Both ends of several spray pipes are connected by connecting rod, and one end of two connecting rods away from the spray pipe is provided with rotating shaft, and two rotating shafts are respectively arranged on the first support rod and the second support rod, to rotatably arrange several spray pipes between the first support rod and the second support rod.

9. The nozzle cleaning apparatus of claim 1, wherein, The first guide rail, the second guide rail and at least two spray pipes are arranged in parallel, and the height of the second guide rail is higher than the height of the spray pipe in the second position.

10. A nozzle cleaning apparatus as claimed in any one of claims 1 to 9, wherein, The master controller is PLC controller.

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