A filling machine

Abstract

The present invention discloses a filling machine, which belongs to the field of lubricating oil production equipment, and is intended to solve the problem of dripping on the inner wall of the nozzle mouth after the filling operation is completed. The key points of its technical solution are: it includes a filling head, a driving mechanism, and a cleaning device. The cleaning device includes a base, a translation driving component, a telescopic driving part, a visual detection unit, and a control system. The telescopic driving part is sequentially integrated with an air blowing component, a spray component, and a wiping component. The control system is electrically connected to the driving mechanism, the translation driving component, the telescopic driving part, each cleaning component, and the visual detection unit. The present invention uses an air blowing component to preliminarily remove loose residues, a spray component to dissolve the viscous oil film, and a wiping component to scrape off stubborn attachments. The synergistic effect of the three can achieve all-round cleaning for lubricating oils of different viscosities, so that the nozzle mouth can completely prevent dripping after filling. In conjunction with a negative pressure recovery tank, waste liquid can be collected and cleaned to avoid secondary contamination of the outer wall of the container or the production line.

Description

Technical Field

[0001] The present invention relates to the field of lubricating oil production equipment, and more particularly to a filling machine. Background Art

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and workpieces. Its primary functions include lubrication, cooling, rust prevention, cleaning, sealing, and cushioning. During the lubricating oil production process, lubricating oil filling machines are typically used to fill finished lubricating oil into barrels for centralized collection and processing.

[0003] When the filling operation is completed, a certain amount of lubricating oil will remain on the inner and outer walls of the nozzle. Under the combined action of intermolecular cohesion and gravity, these residual oils gradually gather to form droplets, and eventually fall out of the nozzle.

[0004] Therefore, new solutions need to be proposed to solve this problem. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a filling machine in order to solve the above problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: A filling machine, comprising:

[0007] Filling head, used to pour lubricating oil into the container;

[0008] a driving mechanism connected to the filling head and configured to drive the filling head to move a preset distance in a vertical direction after completing filling;

[0009] A cleaning device is installed on the frame of the filling machine and is located directly below the filling head. The cleaning device includes:

[0010] A base, fixed on the frame;

[0011] a translation drive assembly mounted on the base and configured to switch translationally between a first position and a second position, wherein the first position is a working position in which the cleaning device is located directly below the filling head, and the second position is a avoidance position in which the cleaning device is retracted to a side of the filling machine;

[0012] A telescopic drive member is mounted on the translation drive assembly and is telescopic in the vertical direction. The telescopic drive member is sequentially integrated with an air blowing assembly, a spray assembly, and a wiping assembly;

[0013] A visual inspection unit, used to collect images of the nozzle opening and determine the contamination status, wherein the visual inspection unit is installed on the translation drive assembly;

[0014] The control system is electrically connected to the driving mechanism, the translation driving component, the telescopic driving component, each cleaning component and the visual detection unit respectively.

[0015] The present invention is further configured as follows: a recovery tank is provided between the telescopic drive member and the translation drive assembly, and the recovery tank is connected to the negative pressure source through a pipeline for recovering residual material on the nozzle opening of the filling head.

[0016] The present invention is further configured as follows: the air blowing assembly comprises:

[0017] An annular air chamber is mounted around the telescopic drive member, and a plurality of blowing nozzles are provided on the annular air chamber;

[0018] An air source is connected to the annular air chamber through a pipeline. A first solenoid valve is provided on the pipeline. The first solenoid valve is electrically connected to the control system and is configured to control the air blowing pressure and air blowing time.

[0019] The present invention is further configured as follows: the spray assembly comprises:

[0020] A liquid storage tank for storing cleaning liquid;

[0021] A spray ring is mounted on the telescopic drive member in a circumferential manner, and is provided with a plurality of atomizing nozzles;

[0022] A metering pump is connected to the pipeline between the liquid storage tank and the spray ring. The control system controls its operation through the second solenoid valve and is configured for spraying pressure and spraying time.

[0023] The present invention is further configured as follows: the wiping assembly includes:

[0024] A rotating seat is rotatably mounted on the telescopic driving member, and an arc-shaped scraper is rotatably mounted on the rotating seat;

[0025] The power source is installed on the translation drive assembly, and when the telescopic drive member drives the rotating seat to move into the nozzle of the filling head, the power source is transmission-connected with the rotating seat.

[0026] The present invention is further configured as follows: the visual detection unit includes an industrial camera, a ring light source and an image processing module.

[0027] The present invention is further configured as follows: the translation drive assembly includes a proximity switch provided at a first position and a visual detection position, the proximity switch is electrically connected to the control system, and when the cleaning device reaches the first position and the visual detection position, a positioning signal is sent to enable the control system to start the corresponding component.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] Firstly, the air blowing component initially removes loose residues, the spray component dissolves the sticky oil film, and the wiping component scrapes off stubborn adhesions. The three components work together to achieve comprehensive cleaning of lubricating oils of different viscosities, completely eliminating dripping from the nozzle after filling. Combined with the negative pressure recovery tank, waste liquid can be collected and cleaned to avoid secondary contamination of the container wall or production line.

[0030] Secondly, the visual inspection unit collects images twice before and after cleaning, accurately identifying residues through an adaptive threshold segmentation algorithm. If the residue does not meet the standard, a second cleaning is automatically triggered to ensure that it meets the strict cleanliness standards.

[0031] Third, the translation drive assembly moves in three stages: avoidance position, detection position, and working position. During filling, the cleaning device retracts to the side of the filler (the second position) to avoid interference with the container and filling head. After filling is completed, it quickly returns to the bottom position without affecting the production line rhythm.

[0032] Fourthly, the control system links the drive mechanism, translation assembly, telescopic assembly and detection unit to realize the fully automatic cycle of "filling-moving-detection-cleaning-resetting", without the need for human intervention, reducing the workload of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present invention;

[0034] Figure 2 Schematic diagram of the filling head structure Figure 1 ;

[0035] Figure 3 Schematic diagram of the filling head structure Figure 2 ;

[0036] Figure 4 It is a structural diagram of the translation drive assembly and the telescopic drive component;

[0037] Figure 5 It is a structural diagram of the telescopic drive component;

[0038] Figure 6 This is a structural diagram of the control system.

[0039] Figure numerals: 1. Filling head; 2. Driving mechanism; 3. Base; 4. Translational driving assembly; 5. Telescopic driving member; 6. Air blowing assembly; 7. Spray assembly; 8. Wiping assembly; 9. Visual detection unit; 10. Annular air chamber; 11. Proximity switch; 12. Recovery tank; 13. Turntable; 14. Arc scraper; 15. Mounting part; 16. Turntable. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0041] A filling machine, such as Figures 1-6 As shown, there is a filling head 1 for pouring lubricating oil into a container, a driving mechanism 2 connected to the filling head 1, and a cleaning device installed on the frame of the filling machine, wherein the driving mechanism 2 drives the filling head 1 to move a preset distance in the vertical direction after completing the filling, so that the filling head 1 can penetrate deep into the container. The cleaning device is located directly below the filling head 1, so as to facilitate cleaning of dripping from the nozzle of the filling head 1.

[0042] like Figure 1-Figure 3 As shown, the cleaning device includes a base 3 fixed on the frame, and a translation drive assembly 4 installed on the base 3, wherein the translation drive assembly 4 includes a cylinder and a movable plate connected to the output end of the cylinder, and the movable plate is translated and switched between a first position and a second position by the cylinder. The first position is a working position where the cleaning device is located directly below the filling head 1, and the second position is a avoidance position where the cleaning device retreats to a side close to the filling machine.

[0043] Therefore, when the filling head 1 is filling, the cleaning device is located in the avoidance position to avoid interfering with the normal filling process. When the filling head 1 completes the filling, the cleaning device moves to the bottom of the filling head 1.

[0044] At the same time Figure 1-Figure 3As shown, the cleaning device also includes a telescopic drive member 5 that can be extended and retracted in the vertical direction and a visual inspection unit 9 for collecting images of the nozzle opening and determining the contamination status, wherein the telescopic drive member 5 and the visual inspection unit 9 are both mounted on a movable plate, wherein when the movable plate moves to the first position, the telescopic drive member 5 is directly below the filling head 1, wherein the telescopic drive member 5 includes a servo electric cylinder and a mounting portion 15 mounted on the output end of the servo electric cylinder, wherein the servo electric cylinder and the mounting portion 15 are both mounted below the movable plate, and a fixing frame for mounting the servo electric cylinder is fixedly provided on the movable plate, thereby ensuring the stability of the position of the servo electric cylinder and the mounting portion 15. At the same time, an avoidance hole is opened on the movable plate, thereby ensuring that the servo electric cylinder can push the mounting portion 15 through the avoidance hole to achieve extension and retraction in the vertical direction, thereby achieving the effect of embedding the mounting portion 15 into the nozzle opening.

[0045] At the same time Figure 4-Figure 5 As shown, the mounting portion 15 is sequentially integrated with an air blowing assembly 6, a spray assembly 7 and a wiping assembly 8, so that the air blowing assembly 6, the spray assembly 7 and the wiping assembly 8 can be extended into the nozzle of the filling head 1 to clean the residual liquid and avoid dripping during subsequent filling.

[0046] Among them Figure 6 As shown, the visual inspection unit 9 is located on the side of the telescopic drive member 5 away from the base 3. At the same time, visual inspection positions are sequentially provided on the moving path of the translation drive assembly 4. The visual inspection position is when the visual inspection unit 9 is located directly below the filling head 1. When the translation drive assembly 4 moves to the visual inspection position, it will pause for a certain period of time, thereby providing a basis for the visual inspection unit 9 to collect the nozzle opening image. After the visual inspection unit 9 completes the collection, the translation drive assembly 4 continues to move and moves to the first position.

[0047] At the same time, when moving to the second position, when moving to the visual inspection position, it will pause again and collect the nozzle mouth image again to confirm that it has been cleaned. If there is any residue, continue cleaning to ensure the anti-drip effect.

[0048] like Figure 6 As shown, the cleaning device also includes a control system, which is electrically connected to the drive mechanism 2, the translation drive assembly 4, the telescopic drive member 5, each cleaning assembly and the visual inspection unit 9, so that when the filling head 1 performs the filling operation, the cleaning device is controlled to be in the second position. After the filling head 1 completes the filling and moves upward, the cleaning device is controlled to translate to the first position, triggering the visual inspection unit 9 to complete the initial contamination state detection. According to the initial contamination state detection result, the telescopic drive member 5 is controlled to extend, so that each cleaning assembly performs a cleaning action on the nozzle opening of the filling head 1 in turn. After the cleaning is completed, the telescopic drive member 5 is controlled to retract and the cleaning device returns to the second position.

[0049] At the same time Figure 2-Figure 4As shown, a recovery trough 12 is disposed between the telescopic drive member 5 and the translational drive assembly 4. This recovery trough 12 is an upwardly open annular structure that surrounds the mounting portion 15. A negative pressure suction port is provided on the inner sidewall of the trough. The recovery trough 12 is connected to a negative pressure source (not shown) via a pipeline. A control system is electrically connected to the negative pressure source. When the components on the telescopic drive member 5 are being cleaned, the negative pressure source is activated, causing the recovery trough 12 to generate an adsorption effect, thereby recovering residual material from the nozzle opening of the filling head 1. Furthermore, the recovery trough 12 is tilted toward the negative pressure point, thereby directing waste material toward the negative pressure point.

[0050] Among them Figure 5 As shown, the air blowing assembly 6 includes an annular air chamber 10 mounted around the telescopic driving member 5 and an air source (not shown) connected to the annular air chamber 10 through a pipeline, wherein a plurality of air blowing nozzles are provided on the annular air chamber 10, and the jetting direction of the air blowing nozzles forms an angle of less than ninety degrees with the filling port end face of the filling head 1, thereby improving the efficiency of air flow cleaning. A first solenoid valve (not shown) is provided on the pipeline, and the first solenoid valve is electrically connected to the control system and is configured to control the air blowing pressure and air blowing time, so that the cleaning degree can be controlled according to the initial contamination state detection result of the visual detection unit 9, making the cleaning more reasonable.

[0051] Among them Figure 5 As shown, the spray assembly 7 includes a liquid storage tank (not shown) for storing cleaning liquid, a spray ring mounted around the telescopic drive member 5, and a metering pump (not shown) connected to the pipeline between the liquid storage tank and the spray ring. The control system controls the operation of the metering pump through the second solenoid valve to achieve control of the spraying pressure and spraying time.

[0052] like Figure 5 As shown, the wiping assembly 8 includes a rotating seat 13 rotatably mounted on the telescopic drive member 5 and a power source mounted on the translation drive assembly 4, wherein the power source is a motor and a turntable 16 connected to the output end of the motor. The end of the rotating seat 13 is provided with an outer edge, wherein the outer wall of the outer edge abuts against the outer wall of the turntable 16, thereby forming a meshing effect through the teeth provided on the outer edge and the outer wall of the turntable 16, thereby achieving the effect of driving the rotating seat 13 to rotate. In addition, the thickness of the outer edge is less than the thickness of the turntable 16, so that when the mounting portion 15 drives the wiping assembly 8 to move, the turntable 16 is still in a meshing state with the outer edge, so that the power source can still provide a stable driving force for the rotating seat 13. At the same time, the upper and lower bottom surfaces of the teeth on the outer edge and the turntable 16 are provided with chamfered corners to ensure the meshing of the teeth on the outer edge and the turntable 16.

[0053] A curved scraper blade 14 is rotatably mounted on the rotating base 13. A torsion spring (not shown) is interposed between the rotating base 13 and the curved scraper blade 14. In its natural state, the curved scraper blade 14 is contracted. As the rotating base 13 rotates, centrifugal force overcomes the torsional force, causing the curved scraper blade 14 to expand, achieving a cleaning effect. The curved scraper blade 14 is made of Shore 30-50A fluororubber and features a rounded edge to prevent scratching the nozzle opening.

[0054] like Figure 6 As shown, the visual inspection unit 9 includes an industrial camera, a ring light source and an image processing module. The image processing module determines the contamination status through the following steps: grayscale, denoising and edge enhancement processing are performed on the collected nozzle mouth image; the residual area and the background are separated by an adaptive threshold segmentation method; the contour features of the residual area are extracted, compared with the preset threshold and the result is output, and then the output result is sent to the control system.

[0055] Among them Figure 1 As shown, the translation drive assembly 4 also includes a proximity switch 11 provided at the first position and the visual detection position. The proximity switch 11 is installed on the frame of the filling machine and is electrically connected to the control system. When the cleaning device reaches the first position and the visual detection position, it sends an in-position signal, causing the control system to start the corresponding components to work, thereby improving the response accuracy through the proximity switch 11.

[0056] Among them Figure 2-Figure 3 As shown, a pipeline guide pipe is also fixedly installed on the fixed frame. The pipeline guide pipe is a metal square pipe, and an elastic clamp is provided every 30-50 mm in the metal square pipe to fix the pipeline in the center of the guide pipe to avoid contact with the pipe wall. The pipeline guide pipe uniformly guides the pipelines to the air blowing component 6, the spray component 7 and the recovery tank 12 to avoid disorderly pipelines.

[0057] Working principle: Containers are placed in order on the conveyor belt of the filling machine. The filling machine is then started, allowing the conveyor belt to transport the containers to the bottom of the filling head 1. The filling head 1 is then pushed into the container by the drive mechanism 2, and the filling head 1 begins to inject lubricating oil. After the injection is completed, the drive mechanism 2 drives the filling head 1 to move upward, separating the filling head 1 from the container. The translation drive assembly 4 is then activated to move to the first position, pausing when passing the visual inspection position. During the pause, the visual inspection unit 9 is located directly below the quasi-nozzle opening, so that the visual inspection unit 9 collects an image of the nozzle opening and determines the contamination status. After collecting the data, the translation drive assembly 4 continues to move toward the first position.

[0058] After moving to the first position, the control system determines the contamination status through the data taken by the visual detection unit 9, and then starts the telescopic drive part 5 to make the servo electric cylinder push the mounting part 15 to move upward, so that the air blowing component 6 penetrates into the nozzle of the filling head 1, and then starts the air source to ventilate the pipeline, and controls the air blowing pressure and air blowing time through the first solenoid valve, so that clean compressed air is blown to the inner wall of the nozzle of the filling head 1 through the blowing nozzle on the annular air chamber 10, blowing off the trace liquid remaining at the nozzle mouth, and at the same time using the air flow to destroy the surface tension of the liquid to prevent it from hanging on the wall.

[0059] At the same time, the negative pressure source is activated through the pipeline to create an air suction effect in the recovery tank 12, thereby collecting the trace amount of liquid blown away to avoid splashing. After the air blowing component 6 completes the blowing, the servo electric cylinder pushes the mounting portion 15 to move further upward, allowing the spray component 7 to penetrate deep into the nozzle of the filling head 1. Then, the control system controls the metering pump through the second solenoid valve, so that the cleaning liquid in the liquid storage tank is guided to the spray ring through the pipeline, and the cleaning liquid is sprayed onto the inner wall of the nozzle through the atomizing nozzle. When the spray component 7 is spraying and cleaning, the negative pressure source uses pressure adsorption to avoid blowing away the atomized cleaning liquid, while keeping it open throughout the process.

[0060] Then after the spraying is completed, the servo electric cylinder pushes the mounting portion 15 to move further upward, and the wiping assembly 8 penetrates into the nozzle of the filling head 1. The power source is started by the control system, so that the power source is connected to the rotating seat 13, so that the rotating seat 13 rotates, and then the arc-shaped scraper 14 will extend outward due to the centrifugal force, so that the arc-shaped scraper 14 abuts against the inner wall of the nozzle of the filling head 1 to repel and scrape. In this process, the servo electric cylinder pulls the mounting portion 15 to move downward, so that the wiping assembly 8 moves slowly downward, thereby scraping off the residual liquid.

[0061] And after wiping assembly 8 exits from the nozzle of filling head 1, air blowing assembly 6 is started again to achieve the air-drying effect on the inner wall of the nozzle of filling head 1. Then after the mounting part 15 completes exiting, the negative pressure source is closed, and the cleaning and recycling effect is ended.

[0062] At the same time, the translation drive assembly 4 moves toward the second position and stops moving when it moves to the visual inspection position. The visual inspection unit 9 is located directly below the quasi-nozzle mouth, so that the visual inspection unit 9 collects the nozzle mouth image and checks whether there is any residue that needs to be cleaned again. If so, the above steps are repeated. If it has been cleaned, the translation drive assembly 4 returns to the second position to prepare for the next filling.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0064] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A filling machine, characterized in that: include: A filling head (1) for filling lubricating oil into the container; A driving mechanism (2) connected to the filling head (1) and configured to drive the filling head (1) to move a preset distance in a vertical direction after completing filling; A cleaning device is installed on the frame of the filling machine and is located directly below the filling head (1). The cleaning device includes: A base (3) is fixed on the frame; a translation drive assembly (4), mounted on the base (3), configured to translate between a first position and a second position, wherein the first position is a working position in which the cleaning device is located directly below the filling head (1), and the second position is a avoidance position in which the cleaning device is retracted to a side close to the filling machine; A telescopic drive member (5) is mounted on the translation drive assembly (4) and is telescopic in the vertical direction, wherein an air blowing assembly (6), a spray assembly (7) and a wiping assembly (8) are sequentially integrated on the telescopic drive member (5); The air blowing assembly (6) includes an annular air chamber (10) and an air source, the annular air chamber (10) is mounted around the telescopic driving member (5), a plurality of air blowing nozzles are provided on the annular air chamber (10), and the air jet direction of the air blowing nozzle forms an angle less than ninety degrees with the end face of the filling port of the filling head (1), the annular air chamber (10) is connected to the air source through a pipeline, and a first electromagnetic valve is provided on the pipeline; The wiping assembly (8) includes a rotating seat (13) rotatably mounted on the telescopic drive member (5), and an arc-shaped scraper (14) made of Shore 30-50A fluororubber is rotatably mounted on the rotating seat (13) via a torsion spring. The wiping assembly (8) also includes a power source mounted on the translation drive member (4), and the power source is in transmission connection with the rotating seat (13) when the telescopic drive member (5) drives the rotating seat (13) to extend into the nozzle of the filling head (1); A visual inspection unit (9) is mounted on the translation drive assembly (4), comprising an industrial camera, a ring light source, and an image processing module, wherein the image processing module determines the contamination state of the nozzle opening of the filling head (1) through grayscale and adaptive threshold segmentation algorithms; The control system is electrically connected to the driving mechanism (2), the translation driving component (4), the telescopic driving member (5), the air blowing component (6), the spray component (7), the wiping component (8) and the visual detection unit (9), and can control the air blowing pressure and air blowing time of the annular air chamber (10) according to the judgment result of the visual detection unit (9).

2. A filling machine according to claim 1, characterized in that: A recovery trough (12) is provided between the telescopic drive member (5) and the translation drive assembly (4), and the recovery trough (12) is connected to a negative pressure source via a pipeline and is used to recover residual material on the nozzle opening of the filling head (1).

3. A filling machine according to claim 1, characterized in that: The spray assembly (7) comprises: A liquid storage tank for storing cleaning liquid; A spray ring is mounted on the telescopic drive member (5) in a circumferential manner, and a plurality of atomizing nozzles are provided on the spray ring; A metering pump is connected to the pipeline between the liquid storage tank and the spray ring. The control system controls its operation through the second solenoid valve and is configured for spraying pressure and spraying time.

4. A filling machine according to claim 1, characterized in that: The translation drive assembly (4) comprises a proximity switch (11) provided at a first position and a visual detection position. The proximity switch (11) is electrically connected to a control system. When the cleaning device reaches the first position and the visual detection position, an in-position signal is sent to enable the control system to activate corresponding components.

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