CN117358671A - Nozzle cleaning device and method for cleaning nozzle - Google Patents

Nozzle cleaning device and method for cleaning nozzle Download PDF

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Publication number
CN117358671A
CN117358671A CN202210777923.2A CN202210777923A CN117358671A CN 117358671 A CN117358671 A CN 117358671A CN 202210777923 A CN202210777923 A CN 202210777923A CN 117358671 A CN117358671 A CN 117358671A
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CN
China
Prior art keywords
cleaning
nozzle
wire mesh
box
nozzle cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210777923.2A
Other languages
Chinese (zh)
Inventor
陈洁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Anstamo Automotive Systems Suzhou Co ltd
Original Assignee
Hitachi Anstamo Automotive Systems Suzhou Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Anstamo Automotive Systems Suzhou Co ltd filed Critical Hitachi Anstamo Automotive Systems Suzhou Co ltd
Priority to CN202210777923.2A priority Critical patent/CN117358671A/en
Publication of CN117358671A publication Critical patent/CN117358671A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/102—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration with means for agitating the liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0217—Use of a detergent in high pressure cleaners; arrangements for supplying the same

Abstract

The invention provides a nozzle cleaning device and a method for cleaning a nozzle. The nozzle cleaning box is used for containing cleaning agents; the detecting part is arranged on the nozzle cleaning box and is used for detecting whether liquid drops exist on the nozzle or not; the cleaning part is arranged at the upper end of the nozzle cleaning box and is used for cleaning liquid drops on the nozzle. According to the nozzle cleaning device of the embodiment of the application, whether the cleaning agent and the resin mixture are remained at the bottom end of the nozzle is detected in real time, and the cleaning agent and the resin mixture are removed through the cleaning part under the condition that the residual cleaning agent and the resin mixture exist, so that the cleaning agent can be prevented from being remained on the nozzle when the resin adhesive is cleaned, and the situation that the cleaning agent and the resin mixture drop onto a substrate is effectively avoided.

Description

Nozzle cleaning device and method for cleaning nozzle
Technical Field
The invention relates to the technical field of nozzle cleaning, in particular to a nozzle cleaning device and a nozzle cleaning method.
Background
The resin is used as a moisture-proof agent for PCB electronic components widely used at present, and can well prevent short circuit, oxidization and the like among the electronic components, thereby playing a role in protection. However, some components are sensitive to resin, and in the process of coating the resin, if the resin drops on the components which are forbidden to be coated, the durability of the product is affected, so that some positions are forbidden to be coated when some products are designed, and if the resin drops on the positions which are forbidden to be coated after coating, only scrapping treatment can be performed.
In order to solve this problem, manufacturers put a nozzle for spraying resin into a cleaning agent for cleaning before each resin coating, and spray the resin after cleaning.
However, after the cleaning of the nozzle, a part of the cleaning agent and the resin mixture may remain on the nozzle, particularly at the outlet portion of the nozzle, and if the mixture drops onto the substrate during the spraying, the mixture may have a certain influence on the components on the substrate.
Disclosure of Invention
In view of the above, the present invention provides a nozzle cleaning device capable of cleaning resin and ensuring that no droplet remains on the nozzle, thereby effectively avoiding the occurrence of a droplet landing on the substrate.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to an embodiment of the first aspect of the present invention, a nozzle cleaning apparatus includes:
the nozzle cleaning box is used for containing cleaning agents;
a detection part, which is arranged on the nozzle cleaning box and is used for detecting whether the nozzle has liquid drops or not;
and the cleaning part is arranged at the upper end of the nozzle cleaning box and is used for cleaning liquid drops on the nozzle.
Preferably, the detection part includes a correlation laser sensor, and a transmitting end and a receiving end of the correlation laser sensor are disposed at an upper end of the nozzle cleaning box opposite to each other and correspond to a standby phase of the nozzle, so as to detect whether a droplet exists.
Preferably, the detection section includes a camera for capturing an image of the nozzle, and an image recognition device for recognizing the image to determine whether there is a liquid droplet on the nozzle.
Preferably, the cleaning section is configured as a wiping section or a suction section.
Preferably, the nozzle cleaning apparatus further comprises:
the stirring device is used for stirring the cleaning agent in the nozzle cleaning box and is an electromagnetic stirring mechanism or a mechanical stirrer.
Preferably, the mechanical stirrer comprises a first motor and stirring blades, wherein the stirring blades are connected to the tail end of a rotating shaft of the first motor, and the stirring blades are arranged in the nozzle cleaning box.
Preferably, the nozzle cleaning apparatus further comprises:
the liquid level sensor is arranged in the nozzle cleaning box and is used for detecting the liquid level of the cleaning agent in the nozzle cleaning box.
Preferably, the liquid level sensor comprises an upper group and a lower group which are arranged at intervals in the height direction and are respectively used for detecting the upper limit and the lower limit of the liquid level.
Preferably, the nozzle cleaning device further includes a cleaning agent replenishment device including:
the cleaning agent replenishing box is used for containing the cleaning agent for replenishing;
and the cleaning agent replenishing box is communicated with the nozzle cleaning box through the communication device.
Preferably, the communicating device is a communicating vessel, and the communicating vessel is used for keeping the liquid level in the cleaning agent replenishing box and the liquid level in the nozzle cleaning box at the same level.
Preferably, the communication device includes:
the cleaning agent replenishing box is communicated with the nozzle cleaning box through the connecting pipe;
the valve is arranged in the connecting pipe;
and the controller is electrically connected with the valve and the liquid level sensor and is used for controlling the opening/closing of the valve according to the detection result of the liquid level sensor.
Preferably, the nozzle cleaning apparatus further comprises:
and the wire mesh is arranged at the bottom of the nozzle cleaning box and is used for filtering the cleaning agent.
Preferably, the nozzle cleaning device further comprises a wire mesh cleaning mechanism comprising:
the upper end side of the wire mesh cleaning box is connected with the upper end side of the nozzle cleaning box through a connecting part;
the rotary lifting device is arranged on the connecting part and is connected with the wire mesh to drive the wire mesh to move between the nozzle cleaning box and the wire mesh cleaning box;
the cleaning device comprises a second motor and a brush, wherein a rotating shaft of the second motor is arranged in the wire mesh cleaning box, and the brush is connected to the rotating shaft and used for cleaning the wire mesh.
Preferably, the nozzle cleaning apparatus further comprises:
the waste liquid barrel is detachably communicated with the metal wire mesh cleaning box, and a valve is arranged between the waste liquid barrel and the metal wire mesh cleaning box.
Preferably, the upper end of the connection portion is formed as a slope, and a side of the slope close to the nozzle cleaning cartridge is higher than a side close to the wire mesh cleaning cartridge.
The invention also provides a method for cleaning a nozzle based on the nozzle cleaning device, which comprises the following steps:
moving the nozzle into the cleaning agent in the nozzle cleaning box;
cleaning the nozzle by the cleaning agent;
and detecting whether the liquid drop exists on the nozzle or not through the detection part, and if the liquid drop exists on the nozzle, removing the liquid drop on the nozzle through the removing part.
Preferably, the nozzle cleaning apparatus includes a liquid level sensor and a cleaning agent replenishment apparatus, the method further comprising:
judging whether the liquid level of the cleaning agent meets the requirements or not through the liquid level sensor, and if not, injecting the cleaning agent into the nozzle cleaning device through the cleaning agent replenishing device until the liquid level of the cleaning agent meets the requirements.
Preferably, the nozzle cleaning apparatus comprises a wire mesh and a wire mesh cleaning mechanism, the method further comprising:
injecting a wire mesh cleaning agent into the wire mesh cleaning box;
moving the wire from the nozzle cleaning box to the wire cleaning box by a rotating lifting device;
cleaning the wire mesh by a cleaning device;
and moving the cleaned wire mesh from the wire mesh cleaning box to the nozzle cleaning box through the rotary lifting device.
The technical scheme of the invention has at least one of the following beneficial effects:
through the cleaning of the nozzle cleaning device, resin is removed, and meanwhile, no liquid drop remains on the nozzle, so that the situation that the liquid drop drops onto a substrate is effectively avoided;
in addition, by arranging the stirring device in the nozzle cleaning box, the flow rate of the cleaning agent can be increased, the cleaning of the nozzle is enhanced, and resin residues are prevented;
further, by providing the isolating wire mesh in the nozzle cleaning box, flocculent residues, solid impurities and the like can be removed periodically or irregularly, so that the nozzle is prevented from being blocked;
in addition, the wire mesh can be kept clean by cleaning the wire mesh periodically or irregularly.
Drawings
FIG. 1 is a schematic view of an application and cleaning of a prior art nozzle, wherein (a) shows a scene graph of the nozzle during a particular use, (b) shows a scene graph of the nozzle cleaning, and (c) shows a scene graph of the nozzle after cleaning when it returns to a workstation;
FIG. 2 is a schematic view of a nozzle cleaning apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing the principle of detecting the presence of a droplet on a nozzle when the detection unit is an opposite-emitting laser sensor;
FIG. 4 shows a schematic diagram of detection when no droplet is present on the nozzle;
FIG. 5 is a schematic diagram of a nozzle cleaning device with a detection part as a camera and an image recognition device according to an embodiment of the present invention;
FIG. 6 is a schematic view showing a structure of a wire mesh during cleaning according to an embodiment of the present invention;
FIG. 7 is a flow chart of a method of cleaning a nozzle in an embodiment of the invention;
FIG. 8 is a flow chart of a method of cleaning a nozzle in another embodiment of the invention.
Reference numerals: 1. a nozzle; 2. a substrate; 3. a nozzle cleaning box; 4. a detection unit; 5. a cleaning part; 6. a droplet; 7. a transmitting end; 8. a receiving end; 9. a camera; 10. a stirring device; 11. a first motor; 12. stirring blades; 13. a liquid level sensor; 14. a cleaning agent replenishment box; 15. a communicating vessel; 16. a wire mesh; 17. a wire mesh cleaning box; 18. a rotary lifting device; 19. a cleaning device; 20. a connection part; 21. a second motor; 22. a brush; 23. and a waste liquid barrel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate a relative positional relationship, which changes accordingly when the absolute position of the object to be described changes.
Fig. 1 shows an application scenario of a nozzle 1. As shown in fig. 1, (a) shows a scene of the nozzle 1 during a specific use, i.e., a spraying device (not shown in the figure) sprays the resin in a molten state onto the substrate 2 through the nozzle 1. (b) A scene diagram of the cleaning of the nozzle 1 is shown, i.e. the nozzle 1 is cleaned by means of a cleaning agent 1 after a period of use of the nozzle 1. As shown in fig. (b), droplets 6 of the cleaning agent may remain at the discharge port of the nozzle 1. (c) A scene graph is shown with the nozzle returned to the station after cleaning. As can be seen from fig. (c), when the cleaned nozzle 1 is returned to the station to be ready for further spraying of the resin, if droplets remain at its ejection port, contamination will be caused to the substrate 2.
In view of this, the present invention proposes a nozzle cleaning device with a detecting portion 4 and a cleaning portion 5 to ensure that droplets 6 of cleaning agent do not remain at the ejection port of the nozzle 1 after the end of cleaning, thereby avoiding contamination of the substrate 2 due to the cleaning agent.
A nozzle cleaning apparatus according to an embodiment of the first aspect of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, the nozzle cleaning apparatus of the present invention includes a nozzle cleaning cartridge 3, a detecting section 4, and a cleaning section 5. The nozzle cleaning box 3 is used for containing cleaning agent; a detecting section 4 provided on the nozzle cleaning cartridge 3 for detecting whether or not there are liquid droplets 6 on the nozzle 1; a cleaning portion 5 is provided at the upper end of the nozzle cleaning cartridge 3 for cleaning the droplets 6 on the nozzle 1.
According to the nozzle cleaning device provided by the embodiment of the invention, after the nozzle 1 is cleaned, the detection part 4 detects whether the liquid drops 6 of the cleaning agent remain on the nozzle 1, and the cleaning part 5 is used for cleaning when the liquid drops 6 remain, so that the cleaning of the resin on the nozzle 1 is ensured, and meanwhile, the cleaning agent cannot remain on the nozzle 1, and the condition that the cleaning agent drops onto the substrate 2 is effectively avoided.
In an embodiment of the present invention, as shown in fig. 2, the detecting unit 4 includes an opposite laser sensor, and a transmitting end 7 and a receiving end 8 of the opposite laser sensor are disposed at an upper end of the nozzle cleaning cartridge 3 and correspond to a standby phase of the nozzle 1. As shown in fig. 3-4, the emitting end 7 of the correlation laser sensor emits laser light to the receiving end 8, if the receiving end 8 receives the laser light, it indicates that there is no obstruction on the propagation path of the laser light, and if the laser light is not received, it indicates that there is an obstruction (i.e., the droplet 6). Moving the cleaned nozzle 1 to a standby position, arranging a transmitting end 7 and a receiving end 8 of an opposite laser sensor at the upper end of the nozzle cleaning box 3 and slightly below the standby position, so that the lower end of the nozzle 1 is properly spaced from a laser propagation path (so that the liquid drops 6 are positioned on the laser propagation path), and when the residual liquid drops 6 do not exist at the lower end of the nozzle 1, as shown in fig. 4, the laser propagation is not affected, and the receiving end 8 receives normally; as shown in fig. 3, when there is a residual droplet 6 at the lower end of the nozzle 1, the laser propagation path is blocked by the droplet 6, and the receiving end 8 does not receive the laser light. Therefore, when the receiving end 8 does not receive the laser light, it is determined that the nozzle 1 has the residual liquid droplets 6. In this case, the droplet 6 can be removed by the removing portion 5.
According to another embodiment, as shown in fig. 5, the detecting part 4 of the nozzle cleaning device of the present invention may further be: the detection section 4 includes a camera 9 for taking an image of the nozzle 1 and image recognition means (not shown in the figure) for recognizing the image to determine whether or not there are liquid droplets 6 on the nozzle 1. The camera 9 may send the photographed picture to an image recognition device by means of bluetooth, a local area network, a wired network, a wireless network, or the like, and the image recognition device recognizes by an image recognition technology after receiving the picture to determine whether a droplet remains at the nozzle opening of the nozzle 1. For example, the image recognition training can be performed by a plurality of pictures of the nozzles 1 with the liquid drops 6 and pictures of the nozzles 1 without the liquid drops 6, and after the training is completed, whether the liquid drops 6 exist or not can be judged according to the pictures actually shot. In addition, a picture in which the droplet 6 is not left may be used as a reference picture, and a picture taken in real time may be compared with the reference picture, and when there is a significant difference, it may be determined that the droplet 6 is left. Of course, a picture in which the droplet 6 remains may be used as a reference picture.
In one embodiment of the invention, the removal part 5 is configured as a wiping part, or as a suction part. The wiping part can be made of a material with stronger water absorption so as to ensure the wiping effect. The suction unit may be, for example, a vacuum suction device, and the liquid 6 may be directly sucked by vacuum suction. In addition, an air blowing fan, a heating device, and the like may be also configured. Preferably, the wiper portion is configured to have a simplified structure and to reduce energy consumption.
In an embodiment of the present invention, the nozzle cleaning apparatus may further comprise a stirring apparatus 10. The stirring device 10 is used for stirring the cleaning agent in the nozzle cleaning cartridge 3, and the stirring device 10 may be, for example, an electromagnetic stirring mechanism or a mechanical stirrer. By stirring the cleaning agent by the stirring device 10, the flow of the cleaning agent can be accelerated, and the resin on the nozzle 1 can be cleaned.
The electromagnetic stirring mechanism is to put a magnetic stirrer in the nozzle cleaning box 3, and to put a magnetic stirrer outside the nozzle cleaning box 3, for example, to stir by magnetic force.
In one embodiment of the invention, the mechanical stirrer comprises a first motor 11, a stirring blade 12. The stirring blade 12 is connected to the end of the rotation shaft of the first motor 11, and the stirring blade 12 is provided in the nozzle cleaning cartridge 3. The mechanical stirrer has low cost, good stirring effect and higher cost performance.
In an embodiment of the invention, the nozzle cleaning device may further comprise a liquid level sensor 13. A liquid level sensor 13 is provided in the nozzle cleaning cartridge 3 for detecting the liquid level of the cleaning agent in the nozzle cleaning cartridge 3. In addition, the liquid level sensor 13 may be connected with an alarm device (not shown), and when the liquid level sensor 13 detects that the liquid level is lower than the lower limit of the liquid level, the alarm device is triggered to alarm so as to remind a worker to supplement the cleaning agent.
In an embodiment of the present invention, the liquid level sensor 13 includes two sets of upper and lower sets spaced apart in the height direction, for detecting an upper liquid level limit and a lower liquid level limit, respectively. When the liquid level sensor 13 below can not detect the cleaning agent, the cleaning agent is reminded to be supplemented, and when the liquid level sensor 13 above detects the cleaning agent in the cleaning agent supplementing process, the cleaning agent supplementing is reminded to be stopped. The liquid level sensor 13 is arranged in a manner that is convenient for timely supplementing the cleaning agent, and can prevent the excessive supplementing of the cleaning agent.
In one embodiment of the invention, the nozzle cleaning device further comprises a cleaning agent replenishing device. The cleaning agent replenishing device comprises a cleaning agent replenishing box 14 and a communicating device, wherein the cleaning agent replenishing box 14 is used for containing replenishing cleaning agent; the cleaning agent replenishment box 14 communicates with the nozzle cleaning box 3 through a communication means. The cleaning agent replenishing device can timely replenish the cleaning agent for the nozzle cleaning box 3.
In one embodiment of the invention, the communication means is a communication means 15 capable of maintaining the level of the liquid in the detergent replenishment cartridge 14 at the same level as the level of the liquid in the nozzle cleaning cartridge 3.
In one embodiment of the present invention, the communication device includes a connection pipe, a valve, and a controller. The cleaning agent replenishing box 14 is communicated with the nozzle cleaning box 3 through a connecting pipe; the valve is arranged in the connecting pipe; the controller is electrically connected with the valve and the liquid level sensor 13 and is used for controlling the opening/closing of the valve according to the detection result of the liquid level sensor 13. When the liquid level sensor 13 detects that the cleaning agent is insufficient, a signal is transmitted to the controller, the controller controls the valve to be opened, the cleaning agent in the cleaning agent replenishing box 14 is replenished into the nozzle cleaning box 3, and when the liquid level sensor 13 detects that the cleaning agent in the nozzle cleaning box 3 is replenished, the signal is transmitted to the controller, and the controller controls the valve to be closed. The cleaning agent supplementing mode omits manpower and improves the degree of automation.
In one embodiment of the invention, the nozzle cleaning apparatus may also include a wire mesh 16. A wire mesh 16 is provided at the bottom of the nozzle cleaning cartridge 3 for filtering the cleaning agent. After the nozzle 1 is washed many times, a lot of floc is left in the nozzle washing box 3, and the floc may enter the nozzle 1 during washing, thereby blocking the nozzle 1. For this purpose, the invention sets up the wire mesh 16 at the bottom of the nozzle cleaning box 3, when there is a lot of flocs in the nozzle cleaning box 3, lift the wire mesh 16, the wire mesh 16 will filter out the flocs, then clean the filtered flocs and put the wire mesh 16 back to the original position. The structure can simply and effectively clean floccules in the nozzle cleaning box 3, and avoid the nozzle 1 from being blocked.
In one embodiment of the invention, the nozzle cleaning apparatus further comprises a wire mesh cleaning mechanism. As shown in fig. 5-6, the wire-net cleaning mechanism includes a wire-net cleaning box 17, a rotary lifting device 18, and a cleaning device 19. The upper end side of the wire mesh cleaning box 17 is connected with the upper end side of the nozzle cleaning box 3 through a connecting part 20; the rotary lifting device 18 is arranged on the connecting part 20, and the rotary lifting device 18 is connected with the wire mesh 16 to drive the wire mesh 16 to move between the nozzle cleaning box 3 and the wire mesh cleaning box 17; the cleaning device 19 comprises a second motor 21 and a brush 22, wherein the rotating shaft of the second motor 21 is arranged in the wire mesh cleaning box 17, and the brush 22 is connected to the rotating shaft for cleaning the wire mesh 16.
When the wire 6 needs to be cleaned, the nozzle 1 is first moved away to avoid interference with the wire 16, the wire 16 is then driven to rise above the nozzle cleaning box 3 by the rotary lifting device 18, the wire 16 is then rotated to reach above the wire cleaning box 17 by the rotary lifting device 18, the wire 16 is then lowered to a proper position of the wire cleaning box 17, cleaning is performed by the brush 22, and the wire is reversely moved to the original position of the nozzle cleaning box 3 after cleaning. It should be noted that before moving the wire 16, the nozzle 1 is moved to a position that does not affect the movement of the wire 16. By the wire mesh cleaning mechanism, automatic cleaning of the wire mesh 16 is achieved, and a large amount of manpower is saved.
In an embodiment of the invention, the nozzle cleaning device further comprises a waste liquid tank 23. The waste liquid barrel 23 is detachably communicated with the wire mesh cleaning box 17, and a valve is arranged between the waste liquid barrel 23 and the wire mesh cleaning box 17. The metal wire mesh cleaning box 17 contains special metal wire mesh cleaning agent, after the metal wire mesh 16 is cleaned, a valve is opened, the metal wire mesh cleaning agent flows to the waste liquid barrel 23, then the waste liquid barrel 23 is removed, waste liquid is poured out, and finally the waste liquid barrel 23 is reloaded. Through detachable waste liquid bucket 23, can clear up the waste liquid comparatively conveniently.
In one embodiment of the invention, the upper end of the connection portion 20 is formed as a slope, the side of the slope close to the nozzle cleaning cartridge 3 being higher than the side close to the wire mesh cleaning cartridge 17. In the process of driving the wire mesh 16 to move by the rotating lifting device 18, liquid on the wire mesh 16 may drop on the connecting part 20, and the connecting part 20 is designed to be inclined slope, so that the liquid drop can flow into the wire mesh cleaning box 17 along the inclined slope, and the liquid is prevented from remaining on the connecting part 20.
An embodiment of the second aspect of the present invention provides a method for cleaning a nozzle based on the above-mentioned nozzle cleaning device, as shown in fig. 7, including:
s1: the nozzle 1 is moved into the cleaning agent in the nozzle cleaning cartridge 3.
The spray device can control the spray nozzle 1 to move into the cleaning agent in the spray nozzle cleaning box, or a special moving bracket can be arranged, the spray nozzle 1 on the spray device is fixed on the moving bracket after being disassembled, and the moving bracket can control the movement of the spray nozzle 1, wherein the dosage of the cleaning agent can be determined according to the experience of staff.
S2: the nozzle 1 is cleaned by a cleaning agent.
Wherein, the cleaning mode can be manual cleaning or special device cleaning;
s3: the detection unit 4 detects whether or not the liquid droplet 6 is present on the nozzle 1.
After the cleaning, the nozzle 1 is moved to the detecting unit 4, and the detecting unit 4 detects whether or not there are any remaining droplets 6 on the nozzle 1, and the detecting unit 4 may be provided at the upper end of the nozzle cleaning cartridge and may be kept at a predetermined distance from the cleaning agent liquid surface.
S4: if there are droplets 6, the droplets 6 on the nozzle 1 are removed by the removing section 5.
If the residual liquid drop 6 is detected on the nozzle 1, the nozzle 1 is moved to the cleaning part 5, the residual liquid drop 6 is cleaned by the cleaning part 5, the nozzle 1 can be moved to the detection part 4 again after cleaning to confirm, and if the residual liquid drop 6 is still present, the nozzle 1 is moved to the cleaning part 5 to clean again until the residual liquid drop 6 is not detected.
The method is based on the nozzle cleaning device, so that the method can clean the nozzle 1, and can also ensure that the cleaning agent cannot remain on the nozzle 1 while cleaning gum, thereby effectively avoiding the situation that the cleaning agent drops onto the substrate 2.
In one embodiment of the invention, the nozzle cleaning device comprises a liquid level sensor 13 and a cleaning agent replenishment device, the method further comprising:
judging whether the liquid level of the cleaning agent meets the requirements or not through the liquid level sensor 13, and if the liquid level of the cleaning agent does not meet the requirements, injecting the cleaning agent into the nozzle cleaning device through the cleaning agent replenishing device until the liquid level of the cleaning agent meets the requirements.
The liquid level of the cleaning agent is detected in real time through the liquid level sensor 13, so that whether the cleaning agent is insufficient or not can be timely judged, and the cleaning agent can be timely supplemented.
In one embodiment of the invention, as shown in fig. 8, the nozzle cleaning apparatus includes a wire mesh 16 and a wire mesh cleaning mechanism, the method further comprising:
s5: injecting a wire mesh cleaning agent into the wire mesh cleaning box 17;
s6: moving the wire 16 from the nozzle cleaning cassette 3 to the wire cleaning cassette 17 by rotating the lifting device 18;
s7: cleaning the wire mesh 16 by a cleaning device 19;
s8: the cleaned wire 16 is moved from the wire cleaning cassette 17 to the nozzle cleaning cassette 3 by means of a rotary lifting device 18.
Through wire mesh 16 and wire mesh cleaning mechanism, realized the automated cleaning to wire mesh 16, saved the manpower and improved degree of automation.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims (16)

1. A nozzle cleaning apparatus, comprising:
the nozzle cleaning box is used for containing cleaning agents;
a detection part, which is arranged on the nozzle cleaning box and is used for detecting whether the nozzle has liquid drops or not;
and the cleaning part is arranged at the upper end of the nozzle cleaning box and is used for cleaning liquid drops on the nozzle.
2. The nozzle cleaning apparatus according to claim 1, wherein the detecting section includes a correlation laser sensor having a transmitting end and a receiving end disposed at an upper end of the nozzle cleaning cartridge in opposition to each other and corresponding to a standby phase of the nozzle.
3. The nozzle cleaning apparatus according to claim 1, wherein the detecting section includes a camera for taking an image of the nozzle and an image recognizing device for recognizing the image to determine whether there is a liquid droplet on the nozzle.
4. The nozzle cleaning apparatus according to claim 1, wherein the cleaning portion is configured as a wiping portion or a suction portion.
5. The nozzle cleaning apparatus of claim 1, further comprising:
the stirring device is used for stirring the cleaning agent in the nozzle cleaning box and is an electromagnetic stirring mechanism or a mechanical stirrer.
6. The nozzle cleaning apparatus of claim 5, wherein the mechanical agitator comprises a first motor, an agitator blade connected to a distal end of a rotating shaft of the first motor, and the agitator blade is disposed within the nozzle cleaning cartridge.
7. The nozzle cleaning apparatus of claim 1, further comprising:
the liquid level sensor is arranged in the nozzle cleaning box and is used for detecting the liquid level of the cleaning agent in the nozzle cleaning box.
8. The nozzle cleaning apparatus according to claim 7, wherein the liquid level sensor includes upper and lower groups spaced apart in a height direction for detecting an upper liquid level limit and a lower liquid level limit, respectively.
9. The nozzle cleaning apparatus of claim 7 or 8, further comprising a cleaning agent replenishment device comprising:
the cleaning agent replenishing box is used for containing the cleaning agent for replenishing;
the communicating vessel is used for keeping the liquid level in the cleaning agent supplying box and the liquid level in the nozzle cleaning box at the same horizontal line.
10. The nozzle cleaning apparatus of claim 1, further comprising:
and the wire mesh is arranged at the bottom of the nozzle cleaning box and is used for filtering the cleaning agent.
11. The nozzle cleaning apparatus of claim 10, further comprising a wire mesh cleaning mechanism comprising:
the upper end side of the wire mesh cleaning box is connected with the upper end side of the nozzle cleaning box through a connecting part;
the rotary lifting device is arranged on the connecting part and is connected with the wire mesh to drive the wire mesh to move between the nozzle cleaning box and the wire mesh cleaning box;
the cleaning device comprises a second motor and a brush, wherein a rotating shaft of the second motor is arranged in the wire mesh cleaning box, and the brush is connected to the rotating shaft and used for cleaning the wire mesh.
12. The nozzle cleaning apparatus of claim 11, further comprising:
the waste liquid barrel is detachably communicated with the metal wire mesh cleaning box, and a valve is arranged between the waste liquid barrel and the metal wire mesh cleaning box.
13. The nozzle cleaning apparatus according to claim 11, wherein an upper end of the connection portion is formed as a slope, and a side of the slope near the nozzle cleaning cartridge is higher than a side near the wire mesh cleaning cartridge.
14. A method of cleaning a nozzle based on the nozzle cleaning apparatus of any one of claims 1-13, comprising:
moving the nozzle into the cleaning agent in the nozzle cleaning box;
cleaning the nozzle by the cleaning agent;
detecting whether there is a droplet on the nozzle by the detecting section,
if there is a droplet, the droplet on the nozzle is removed by a removing portion.
15. The method of claim 14, wherein the nozzle cleaning device comprises a level sensor and a cleaning agent replenishment device, the method further comprising:
judging whether the liquid level of the cleaning agent meets the requirements or not through the liquid level sensor, and if not, injecting the cleaning agent into the nozzle cleaning device through the cleaning agent replenishing device until the liquid level of the cleaning agent meets the requirements.
16. The method of claim 14, wherein the nozzle cleaning apparatus comprises a wire mesh and a wire mesh cleaning mechanism, the method further comprising:
injecting a wire mesh cleaning agent into the wire mesh cleaning box;
moving the wire from the nozzle cleaning box to the wire cleaning box by a rotating lifting device;
cleaning the wire mesh by a cleaning device;
and moving the cleaned wire mesh from the wire mesh cleaning box to the nozzle cleaning box through the rotary lifting device.
CN202210777923.2A 2022-06-28 2022-06-28 Nozzle cleaning device and method for cleaning nozzle Pending CN117358671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210777923.2A CN117358671A (en) 2022-06-28 2022-06-28 Nozzle cleaning device and method for cleaning nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210777923.2A CN117358671A (en) 2022-06-28 2022-06-28 Nozzle cleaning device and method for cleaning nozzle

Publications (1)

Publication Number Publication Date
CN117358671A true CN117358671A (en) 2024-01-09

Family

ID=89388001

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210777923.2A Pending CN117358671A (en) 2022-06-28 2022-06-28 Nozzle cleaning device and method for cleaning nozzle

Country Status (1)

Country Link
CN (1) CN117358671A (en)

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