Inverted tip-spray oiler automated high pressure cleaning apparatus

Abstract

This invention discloses an automated high-pressure cleaning device for inverted top-spray fuel injectors, belonging to the technical field of fuel system cleaning equipment. It includes a vertical workbench, with a cleaning mechanism and an isolation cover mounted above it. A tilting mechanism is installed in front of the cleaning mechanism, and a conveyor belt for lateral transport of the fuel injectors is installed in front of the vertical workbench. The conveyor belt transports the upright fuel injectors to the tilting mechanism, which clamps the upright injectors and tilts them 180 degrees backward to an inverted position, where they connect vertically with the cleaning mechanism. The inverted fuel injectors are then concentrated and sprayed towards the top of the isolation cover by the cleaning mechanism. This inverted design allows the injector nozzles to spray upwards, enabling operators to directly visually observe the spray pattern (such as atomization uniformity and the removal of blockages) and accurately judge whether the cleaning is thorough, avoiding the problems of insufficient or excessive cleaning caused by traditional equipment relying on fixed times.

Description

Technical Field

[0001] This invention relates to the field of fuel system cleaning equipment technology, specifically to an automated high-pressure cleaning device for inverted top-spray fuel injectors. Background Technology

[0002] Fuel injectors are one of the core components of internal combustion engines (such as automobiles and diesel engines). Their function is to inject fuel into the combustion chamber in a high-pressure atomized form, directly affecting the engine's combustion efficiency and power performance. However, during long-term use, impurities in the fuel (such as gum and carbon particles) gradually accumulate at the injector nozzle, forming carbon deposits. These carbon deposits can cause the injector orifice to become smaller or even clogged, leading to problems such as uneven fuel injection, poor atomization, fuel waste, and excessive exhaust emissions. In severe cases, they can even cause engine failure.

[0003] Currently, fuel injector cleaning mainly relies on two methods: 1. Manual cleaning: This involves disassembling the fuel injector with specialized tools and then soaking or brushing it. However, this method is inefficient, labor-intensive, and difficult to thoroughly remove deep carbon deposits. 2. Centralized cleaning equipment: This involves placing multiple fuel injectors into a cleaning equipment for centralized cleaning. While this increases batch processing capacity, it still has the following problems: Inconvenient observation: In traditional cleaning equipment, the injector is usually kept upright (oil inlet facing up, nozzle facing down). When cleaning, the nozzle sprays downwards, and the operator cannot directly observe the spray status (such as atomization effect, spray angle, whether there is any blockage residue). Existing technology can only rely on the preset cleaning time to judge whether it is completed, which can easily lead to incomplete cleaning (carbon deposits not completely removed) or over-cleaning (damage to the nozzle). Low automation in material feeding: Because the injectors cannot be stably conveyed when upright (the nozzles are facing down and are prone to touching the conveying surface), the current method is mainly to place the injectors into the cleaning station one by one manually. This results in low automation, high labor costs, and limited work efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automated high-pressure cleaning device for inverted top-spray type injectors. By inverting the injector (with the nozzle facing upward) for high-pressure spray cleaning, the operator can directly observe the spray state to accurately judge the cleaning effect. At the same time, it integrates an automated conveying and flipping mechanism to replace manual feeding, significantly improving cleaning efficiency and reliability, thereby solving the problems of inconvenient cleaning observation and low automation of injector feeding in existing unified cleaning equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An automated high-pressure cleaning device for inverted top-spray injectors includes a vertical workbench, a cleaning mechanism mounted on top of the workbench, and an isolation cover above the cleaning mechanism. Its core improvement lies in the following: a tilting mechanism is installed in front of the cleaning mechanism, and a conveyor belt for lateral transport of the injectors is installed in front of the vertical workbench. The conveyor belt transports the injectors in their upright position to the tilting mechanism, which clamps the injectors in their upright position and tilts them 180 degrees backward to an inverted position, where they connect vertically with the cleaning mechanism. When the inverted injectors are concentrated and sprayed towards the top of the isolation cover by the cleaning mechanism, the cleaning effect on the nozzles can be more directly observed.

[0006] By adopting the above solution, the inverted design allows the nozzle to spray upwards, enabling operators to directly visually observe the spray pattern (such as atomization uniformity and the removal of blockages) and accurately judge whether the cleaning is thorough. This avoids the problems of insufficient or excessive cleaning caused by traditional equipment relying on fixed times. Through the coordinated work of the conveyor belt, propulsion mechanism, and tilting mechanism, the entire process of the injector from loading to conveying to tilting is automated, replacing manual loading one by one, significantly reducing labor intensity and improving production efficiency.

[0007] As a preferred embodiment of an automated high-pressure cleaning device for an inverted top-spray injector, in order to clarify the state transition logic, when the injector is in the upright state, its oil inlet faces upward and its nozzle faces downward; when the injector is in the inverted state, its nozzle faces upward and its oil inlet faces downward; this ensures that the nozzle is in the best observation position after being flipped, and at the same time, the downward-facing oil inlet facilitates the reverse flushing of carbon deposits in the internal flow channel by high-pressure fluid.

[0008] As a preferred embodiment of an automated high-pressure cleaning device for an inverted top-spray type injector, when the injector is in the upright position, the bottom nozzle of the injector is placed on a tray and transported on a conveyor belt with the help of the tray. The tray supports the upright injector with the nozzle facing down and transports it stably (avoiding the nozzle from touching the conveyor surface). When the flipping mechanism clamps the upright injector and flips it up, the injector and the tray will automatically separate. The automatic separation design after flipping simplifies the clamping process and prevents the tray from interfering with subsequent cleaning actions.

[0009] In a preferred embodiment of an automated high-pressure cleaning device for inverted top-spray injectors, the tilting mechanism includes a tilting shaft mounted on a vertical workbench via a bearing seat and arranged laterally to the left and right. A tilting motor is installed at one end of the tilting shaft to drive its rotation. Multiple long grippers are movably connected to the shaft via clamping blocks. An electric push rod is also movably connected to the shaft via clamping blocks. Multiple short grippers that cooperate with the long grippers are simultaneously movably connected to the telescopic end of the electric push rod via a connecting rod. The long and short grippers together form a gripper group for holding a single injector. The motor drives the tilting shaft to achieve a precise 180° tilt. All gripper groups, through the combined action of the electric push rod and the connecting rod, simultaneously engage all the long / short grippers to hold the injector. The electric push rod can adjust the position of the short grippers to adapt to injectors of different sizes, ensuring a stable and reliable tilting process.

[0010] As a preferred embodiment of an automated high-pressure cleaning device for inverted top-spray type oil injectors, the long and short grippers have grooves on their opposing sides that fit the shape of the oil injector clamping parts. The grooves precisely match the clamping parts such as the annular boss in the middle of the oil injector. At the outer end of the groove where the short gripper is located, there is also a flared opening to facilitate the oil injector entering the groove. The flared opening design reduces the difficulty of loading and alignment, making it easier for the oil injector to enter the groove, and improving clamping efficiency and compatibility.

[0011] As a preferred embodiment of an automated high-pressure cleaning device for inverted top-spray injectors, when the injector trays are conveyed close together on the conveyor belt, the distance between two adjacent injectors is exactly equal to the distance between two adjacent gripper groups. This ensures that the pushing mechanism accurately pushes the injectors onto the flipping mechanism each time, avoiding over-gripping or under-gripping, and ensuring the continuity and accuracy of the automated process.

[0012] As a preferred embodiment of an automated high-pressure cleaning device for inverted top-spray fuel injectors, the cleaning mechanism includes a cleaning pump body installed below a vertical workbench. An input pipe is connected to the right end of the cleaning pump body, and an output pipe extending into an isolation cover is connected to the top of the cleaning pump body. The cleaning pump body provides high-pressure fluid (such as a special cleaning agent). Multiple evenly distributed and upward-extending cleaning pipes are connected to the delivery pipe. Each cleaning pipe is also equipped with a pressure boosting valve, which further increases the injection pressure (up to 5-10 MPa) to ensure that the high-pressure fluid can effectively impact the stubborn carbon deposits (such as long-term accumulated hard carbon layers) inside the fuel injector.

[0013] In a preferred embodiment of an automated high-pressure cleaning device for inverted top-spray injectors, a propulsion mechanism is also installed in front of the tilting mechanism, located on the side wall of the conveyor belt. The propulsion mechanism includes an electric pusher cylinder 1 installed on the side wall of the conveyor belt, and a pusher plate 1 installed at the propulsion end of the electric pusher cylinder 1 to push the injector and pallet from the conveyor belt toward the tilting mechanism. When the tilting mechanism clamps the injector and tilts it backward, the electric pusher cylinder 1 drives the pusher plate 1 to return to the initial state. The electric pusher cylinder 1 precisely controls the pushing distance (such as pushing it into the gripper assembly), and the pusher plate 1 retracts to avoid interfering with the tilting action. The propulsion mechanism also includes an electric pusher cylinder 2 installed on the vertical workbench, and a pusher plate 2 installed at the propulsion end of the electric pusher cylinder 2 to push the injector and pallet from the tilting mechanism toward the conveyor belt. The pusher plate 2 then pushes the injector and pallet back onto the conveyor belt, realizing the automation of the loading and unloading process and replacing manual operation.

[0014] In a preferred embodiment of an automated high-pressure cleaning device with an inverted top-spray type injector, two sets of auxiliary injectors and a guide mechanism for conveying trays on the conveyor belt are sequentially installed on the input and output sections of the conveyor belt. The guide mechanism includes two sets of reference frames installed on the side wall of the conveyor belt. Each set of reference frames is equipped with an adjusting rod, and an adjusting seat is installed at the end of the adjusting rod. The two sets of adjusting seats are connected by two upper and lower guide rods for guiding the delivery of the injectors. The guide rods constrain the lateral position of the injectors (to prevent forward and backward displacement). The adjusting rods and adjusting seats can be adapted to injectors of different widths to ensure that the conveying process is stable and does not tip over.

[0015] In a preferred embodiment of an automated high-pressure cleaning device for inverted top-spray injectors, at least one braking mechanism is also installed at the location of the guiding mechanism. The braking mechanism includes two sets of reference frames II mounted on the sidewalls of the conveyor belt. Each set of reference frames is equipped with an electric actuator II. A brake plate is installed at the advancing end of the electric actuator II to stop the injector on the conveyor belt. When the flipping mechanism clamps the injector and flips it backward, the brake plate clamps the remaining injectors, ensuring that the injectors and trays maintain relative movement with the conveyor belt. The brake plate prevents adjacent injectors from continuing to move, ensuring that only the target injector is flipped, avoiding collisions, clamping errors, or fluid jet interference caused by simultaneous operation of multiple injectors, thus improving equipment reliability.

[0016] The beneficial effects of this invention are: 1. Visualized cleaning: The inverted design allows the nozzle to spray upwards, enabling operators to directly observe the spraying status (such as atomization uniformity and the removal of blockages) and accurately judge whether the cleaning is thorough, avoiding the problems of insufficient or excessive cleaning caused by traditional equipment relying on fixed time. 2. Automated feeding: Through the coordinated work of the conveyor belt, propulsion mechanism and tilting mechanism, the entire process of feeding, conveying and tilting of the injectors is automated, replacing manual feeding one by one, significantly reducing labor intensity and improving production efficiency; 3. Clamping and Tilting Stability: The clamping jaw assembly, composed of long and short jaws, combined with the slot and flared design, accurately adapts to injectors of different sizes. The tilting motor drives the tilting shaft to achieve a stable 180° tilt, ensuring that the injector does not fall off or shift during the tilting process. 4. Optimized delivery and cleaning: The guiding mechanism constrains the delivery path of the injectors, the braking mechanism prevents interference from non-target injectors, and the pressure boosting valve increases the cleaning pressure, ensuring cleaning effect and equipment operation reliability from multiple dimensions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 Three-dimensional automated high-pressure cleaning equipment for inverted top spray injectors Figure 1 ; Figure 2 Three-dimensional automated high-pressure cleaning equipment for inverted top spray injectors Figure 2 ; Figure 3 for Figure 1 A three-dimensional view of the inverted mechanism clamping the injector on the vertical worktable; Figure 4 for Figure 1 A 3D view of the central tilting mechanism tilting the injector backward on the vertical worktable; Figure 5 for Figure 3 A 3D view of the injector being held by the central tilting mechanism; Figure 6 for Figure 5 A 3D view of the tilting mechanism; Figure 7 for Figure 6 A magnified view of a section at point A in the middle; Figure 8 for Figure 1 A 3D view of a Chinese cleaning organization; Figure 9 for Figure 1 Three-dimensional guide mechanism and braking mechanism Figure 1 ; Figure 10 for Figure 1 Three-dimensional guide mechanism and braking mechanism Figure 2 ; Figure 11 for Figure 1 Right view of the central guide mechanism and braking mechanism.

[0019] The diagram shows the following markings: 1-Vertical workbench; 2-Cleaning mechanism; 21-Cleaning pump body; 22-Output pipe; 23-Cleaning pipe; 24-Pressure booster valve; 3-Isolation cover; 4-Tilting mechanism; 41-Tilting shaft; 42-Tilting motor; 43-Clamping block; 44-Long gripper; 45-Electric push rod one; 46-Connecting rod; 47-Short gripper; 48-Slot; 49-Flanged opening; 5-Conveyor track; 6-Injector; 7-Pattern; 8-Propulsion mechanism; 81-Electric push cylinder one; 82-Push plate one; 83-Electric push cylinder two; 84-Push plate two; 9-Guiding mechanism; 91-Base frame one; 92-Adjusting rod; 93-Adjusting seat; 94-Guiding rod; 10-Brake mechanism; 101-Base frame two; 102-Electric push rod two; 103-Brake plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 4 As shown, an automated high-pressure cleaning device for inverted top-spray injectors is provided, specifically including a vertical workbench 1, a cleaning mechanism 2 and an isolation cover 3 installed above the cleaning mechanism 2; a flipping mechanism 4 is also installed in front of the cleaning mechanism 2, and a conveyor belt 5 for horizontal transport of injectors 6 is installed in front of the vertical workbench 1; the injectors 6 in the upright state are transported to the flipping mechanism 4 by the conveyor belt 5, and the flipping mechanism 4 can clamp the injectors 6 in the upright state and flip them 180 degrees backward to the inverted state to connect with the cleaning mechanism 2 vertically. When the inverted injectors 6 are concentrated and sprayed towards the top of the isolation cover 3 by the cleaning mechanism 2, the cleaning status of the injectors can be observed more intuitively. This inverted design allows the nozzles to spray upwards, enabling operators to directly visually observe the spray pattern (such as atomization uniformity and the removal of blockages) and accurately judge whether the cleaning is thorough. This avoids the problems of insufficient or excessive cleaning caused by traditional equipment relying on fixed times. Through the coordinated work of the conveyor belt 5, the propulsion mechanism 8, and the tilting mechanism 4, the entire process of the injector 6 from loading to conveying to tilting is fully automated, replacing manual loading one by one, significantly reducing labor intensity and improving production efficiency.

[0022] like Figures 3 to 4 As shown, in order to clarify the state transition logic, when the injector 6 is in the upright state, its oil inlet faces upward and its nozzle faces downward; when the injector 6 is in the inverted state, its nozzle faces upward and its oil inlet faces downward; this ensures that the nozzle is in the best observation position after being flipped, and at the same time, the downward-facing oil inlet facilitates the reverse flushing of carbon deposits in the internal flow channel by high-pressure fluid.

[0023] Continue as Figures 3 to 4 As shown, when the injector 6 is in the upright position, the bottom nozzle of the injector 6 is placed on the tray 7 and transported on the conveyor belt 5 with the help of the tray 7. The tray 7 supports the upright injector 6 with the nozzle facing down and transports it stably (avoiding the nozzle from touching the conveyor surface). When the flipping mechanism 4 clamps the upright injector 6 and flips it up, the injector 6 and the tray 7 will automatically separate. The automatic separation design after flipping simplifies the clamping process and prevents the tray 7 from interfering with subsequent cleaning operations.

[0024] like Figures 6 to 7 As shown, the flipping mechanism 4 includes a flipping shaft 41 mounted on the vertical workbench 1 via a bearing seat and arranged laterally to the left and right. A flipping motor 42 is installed at one end of the flipping shaft 41 to drive its rotation. Multiple long grippers 44 are movably connected to the shaft of the flipping shaft 41 via a clamping block 43. An electric push rod 45 is also movably connected to the shaft of the flipping shaft 41 via a clamping block 43. Multiple short grippers 47 that cooperate with the long grippers 44 are simultaneously movably connected to the telescopic end of the electric push rod 45 via a connecting rod 46. The long grippers 44 and the short grippers 47 together form a set of grippers for holding a single injector 6. The motor drives the flipping shaft 41 to achieve a precise 180° flip. All gripper sets cooperate with all the long / short grippers 47 to hold the injector 6 through the joint action of the electric push rod 45 and the connecting rod 46. The electric push rod 45 adjusts the position of the short grippers 47 to adapt to injectors 6 of different sizes, ensuring a stable and reliable flipping process.

[0025] like Figure 7 As shown, the long gripper 44 and the short gripper 47 have grooves 48 on their opposing sides that fit the shape of the gripping part of the injector 6. The grooves 48 precisely match the gripping parts such as the annular boss in the middle of the injector 6. At the outer end of the groove 48 where the short gripper 47 is located, there is also a flared opening 49 to facilitate the injector 6 entering the groove 48. The flared opening 49 design reduces the difficulty of loading and alignment, making it easier for the injector 6 to enter the groove 48, thus improving clamping efficiency and compatibility.

[0026] like Figure 5 As shown, when the tray 7 of the injector 6 is conveyed closely on the conveyor belt 5, the distance between two adjacent injectors 6 is exactly equal to the distance between two adjacent gripper groups, ensuring that the pushing mechanism 8 accurately pushes the injector 6 onto the flipping mechanism 4 each time, avoiding over-gripping or missing gripping, and ensuring the continuity and accuracy of the automated process.

[0027] like Figure 8 As shown, the cleaning mechanism 2 includes a cleaning pump body 21 installed below the vertical workbench 1. An input pipe is connected to the right end of the cleaning pump body 21, and an output pipe 22 extending into the isolation cover 3 is connected to the top of the cleaning pump body 21. The cleaning pump body 21 provides high-pressure fluid (such as a special cleaning agent). Multiple evenly distributed and upward-extending cleaning pipes 23 are connected to the delivery pipe. Each cleaning pipe 23 is also equipped with a pressure boosting valve 24, which further increases the injection pressure (up to 5-10 MPa) to ensure that the high-pressure fluid can effectively impact the stubborn carbon deposits (such as long-term accumulated hard carbon layers) inside the fuel injector.

[0028] like Figures 3 to 4 As shown, a propulsion mechanism 8 is also installed in front of the tilting mechanism 4, located on the side wall of the conveyor belt 5. The propulsion mechanism 8 includes an electric push cylinder 81 installed on the side wall of the conveyor belt 5. A push plate 82 is installed at the propulsion end of the electric push cylinder 81 to push the injector 6 and the pallet 7 from the conveyor belt 5 toward the location of the tilting mechanism 4. When the tilting mechanism 4 clamps the injector 6 and tilts it backward, the electric push cylinder 81 drives the push plate 82 to return to the initial state. The electric push cylinder 81 precisely controls the pushing distance (such as pushing it into the gripper group), and the push plate 82 returns to avoid interfering with the tilting action. The propulsion mechanism 8 also includes an electric push cylinder 83 installed on the vertical workbench 1. A push plate 84 is installed at the propulsion end of the electric push cylinder 83 to push the injector 6 and the pallet 7 from the location of the tilting mechanism 4 toward the conveyor belt 5. The push plate 84 pushes the injector 6 and the pallet 7 back onto the conveyor belt 5, realizing the automation of the loading and unloading process and replacing manual operation.

[0029] like Figures 9 to 11 As shown, the input and output sections of the conveyor track 5 are sequentially equipped with two sets of auxiliary injectors 6 and a pallet 7, which are guided by a guide mechanism 9 for conveying the feeder on the conveyor track 5. The guide mechanism 9 includes two sets of reference frames 91 installed on the side wall of the conveyor track 5. Each set of reference frames is equipped with an adjusting rod 92. An adjusting seat 93 is installed at the end of the adjusting rod 92. The two sets of adjusting seats 93 are connected by two upper and lower guide rods 94 for guiding the feeder 6. The guide rods 94 constrain the lateral position of the injector 6 (to prevent forward and backward displacement). The adjusting rods 92 and adjusting seats 93 can be adapted to injectors 6 of different widths to ensure that the conveying process is stable and does not tip over.

[0030] Continue as Figures 9 to 11As shown, at least one set of braking mechanisms 10 is also installed at the location of the guiding mechanism 9. The braking mechanism 10 includes two sets of reference frames 101 installed on the side wall of the conveyor belt 5. Electric push rods 102 are installed on both sets of reference frames. A brake plate 103 is installed at the pushing end of the electric push rods 102 to stop the injector 6 on the conveyor belt 5. When the flipping mechanism 4 clamps the injector 6 and flips it backward, the brake plate 103 clamps the remaining injectors 6 and keeps the injectors 6 and the tray 7 moving relative to the conveyor belt 5. The brake plate 103 prevents the adjacent injectors 6 from continuing to move, ensuring that only the target injector 6 is flipped, avoiding collisions, clamping errors or fluid jet interference caused by the simultaneous action of multiple injectors 6, and improving the reliability of the equipment.

[0031] Working principle of this inverted top-spray type automatic high-pressure cleaning equipment: Feeding and conveying: The upright injector 6 (injector nozzle facing down, bottom placed on the tray 7) is fed in through the conveyor belt 5, the guiding mechanism 9 (guide rod 94) ensures centered conveying, and the braking mechanism 10 stops the other injectors 6 when the injector 6 is flipped. Flipping and inverting: The push mechanism 8 (push plate 82) pushes the injector 6 and tray 7 to the flipping mechanism 4. The long / short gripper 47 clamps the injector 6 and disengages from the tray 7. Then the push plate 82 of the push mechanism 8 retracts and resets. The flipping motor 42 drives the flipping shaft 41 to rotate 180°, so that the injector 6 is inverted (injector nozzle facing up). Cleaning observation: The inverted injector 6 is connected to the cleaning mechanism 2. The cleaning pump body 21 sprays high-pressure liquid (adjusted by the pressure boosting valve 24) from the top of the cleaning pipe 23 to the injector. The operator can directly observe the spraying status (such as the uniformity of atomization and the situation of blockage flying out) and accurately judge whether the cleaning is thorough. Unloading and resetting: The flipping motor 42 drives the flipping shaft 41 to rotate 180° and flip in the opposite direction to reset. At this time, the bottom of the cleaned oil sprayer 6 is reinserted into the tray 7. The push plate 84 of the push mechanism 8 pushes the oil sprayer 6 and the tray 7 back onto the conveyor belt 5, realizing the automation of the loading and unloading process and replacing manual operation. The cleaned oil sprayer 6 is output with the conveyor belt 5 and enters the next drying stage.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated high-pressure cleaning device for inverted top-spray type fuel injectors, comprising a vertical workbench, a cleaning mechanism mounted above the vertical workbench, and an isolation cover located above the cleaning mechanism; characterized in that: A tilting mechanism is installed in front of the cleaning mechanism, and a conveyor belt for lateral transport of the injectors is installed in front of the vertical workbench. The injectors in the upright position are transported to the tilting mechanism by the conveyor belt. The tilting mechanism can clamp the injectors in the upright position and tilt them 180 degrees backward to the inverted position to connect with the cleaning mechanism vertically. When the inverted injectors are concentrated and sprayed towards the top of the isolation cover by the cleaning mechanism, the cleaning of the nozzles can be observed more intuitively.

2. The automated high-pressure cleaning equipment for inverted top-spray type oil injectors according to claim 1, characterized in that, When the injector is in the upright position, its oil inlet faces upward and its nozzle faces downward; when the injector is in the inverted position, its nozzle faces upward and its oil inlet faces downward.

3. The automated high-pressure cleaning equipment for inverted top-spray type injectors according to claim 2, characterized in that, When the injector is in the upright position, the bottom nozzle of the injector is placed on the tray and transported on the conveyor belt with the help of the tray. When the flipping mechanism clamps the injector in the upright position and flips it up, the injector and the tray will automatically separate.

4. The automated high-pressure cleaning equipment for inverted top-spray type injectors according to claim 3, characterized in that, The flipping mechanism includes a flipping shaft mounted on a vertical workbench via a bearing seat and arranged laterally to the left and right. A flipping motor that drives the rotation of the flipping shaft is installed at one end. Multiple long grippers are movably connected to the shaft via a clamping block. An electric push rod is also movably connected to the shaft via a clamping block. Multiple short grippers that cooperate with the long grippers are simultaneously movably connected to the telescopic end of the electric push rod via a connecting rod. The long grippers and short grippers together form a set of grippers for holding a single injector.

5. The automated high-pressure cleaning equipment for inverted top-spray type injectors according to claim 4, characterized in that, The long and short grippers have grooves on their opposite sides that fit the shape of the injector clamping part. The outer end of the groove where the short gripper is located is also provided with an flared opening to facilitate the injector entering the groove.

6. The automated high-pressure cleaning equipment for inverted top-spray type injectors according to claim 4, characterized in that, When the injector trays are conveyed close together on the conveyor belt, the distance between two adjacent injectors is exactly equal to the distance between two adjacent gripper groups.

7. The automated high-pressure cleaning equipment for inverted top-spray type injectors according to claim 3, characterized in that, The cleaning mechanism includes a cleaning pump body installed below the vertical workbench, an input pipe connected to the right end of the cleaning pump body, an output pipe connected to the top of the cleaning pump body extending into the isolation cover, and multiple evenly distributed and upward-extending cleaning pipes connected to the delivery pipe, each cleaning pipe being equipped with a pressure boosting valve.

8. The automated high-pressure cleaning equipment for inverted top-spray type injectors according to claim 3, characterized in that, A propulsion mechanism located on the side wall of the conveyor track is also installed directly in front of the tilting mechanism. The propulsion mechanism includes an electric pusher cylinder 1 installed on the side wall of the conveyor track, and a push plate 1 installed at the propulsion end of the electric pusher cylinder 1 to push the injector and pallet from the conveyor track toward the location of the tilting mechanism. When the tilting mechanism holds the injector and tilts backward, the electric pusher cylinder 1 drives the push plate 1 to return to the initial state. The propulsion mechanism also includes an electric pusher cylinder 2 installed on the vertical workbench, and a push plate 2 installed at the propulsion end of the electric pusher cylinder 2 to push the injector and pallet from the location of the tilting mechanism toward the conveyor track.

9. The automated high-pressure cleaning equipment for inverted top-spray type injectors according to claim 3, characterized in that, The input and output sections of the conveyor track are sequentially equipped with two sets of auxiliary injectors and a guide mechanism for the pallet to be conveyed on the conveyor track; the guide mechanism includes two sets of reference frames installed on the side wall of the conveyor track, each set of reference frames is equipped with an adjusting rod, and an adjusting seat is installed at the end of the adjusting rod. The two sets of adjusting seats are connected together by two upper and lower guide rods for guiding the conveying of the injectors.

10. The automated high-pressure cleaning equipment for inverted top-spray type injectors according to claim 9, characterized in that, The guiding mechanism is also equipped with at least one braking mechanism; the braking mechanism includes two sets of reference frames II installed on the side wall of the conveyor track, and electric push rods II are installed on both sets of reference frames. A braking plate is installed at the pushing end of the electric push rods II to stop the injector on the conveyor track; when the flipping mechanism clamps the injector and flips it backward, the braking plate clamps the remaining injectors and keeps the injector and tray moving relative to the conveyor track.

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