Cleaning line and method for automatically cleaning vehicle-mounted gas cylinder

Abstract

The invention discloses a cleaning line and method for automatically cleaning vehicle-mounted gas cylinders, and relates to the technical field of vehicle-mounted gas cylinder cleaning, a base plate is sequentially provided with a feeding conveying roller way, a cleaning tank and a discharging conveying roller way from left to right, and the right side of the feeding conveying roller way is provided with a blocking mechanism for blocking the vehicle-mounted gas cylinders from moving rightwards; a lead screw nut pair is arranged on the portal frame, a frame is fixedly arranged on the bottom surface of a nut of the lead screw nut pair, a piston rod of the clamping oil cylinder downwards penetrates through the bottom wall of the frame, and a cleaning assembly used for clamping, rotating and swinging a vehicle-mounted gas cylinder to be cleaned is arranged at the extending end of the piston rod; a swinging mechanism for driving the main shaft to do reciprocating rotation around the axis of the main shaft is arranged on the top surface of the mounting plate; a drying mechanism used for drying the vehicle-mounted gas cylinder is arranged on the base plate and located between the discharging conveying roller way and the cleaning tank. The vehicle-mounted gas cylinder cleaning device has the beneficial effects that the vehicle-mounted gas cylinder cleaning efficiency is greatly improved, and oil stains attached to the arc-shaped face of the vehicle-mounted gas cylinder can be thoroughly cleaned away.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning vehicle-mounted gas cylinders, and in particular to a cleaning line and method for automatically cleaning vehicle-mounted gas cylinders. Background Art

[0002] A gas cylinder is usually installed at the bottom of a transport vehicle or truck. The gas cylinder is used to hold high-pressure natural gas or hydrogen. This gas cylinder is made by mechanical hydraulic stretching. The structure of the gas cylinder is as follows: Figure 1 After the vehicle-mounted gas cylinder is stretched and formed, a large amount of oil stains are attached to the inner wall of the vehicle-mounted gas cylinder. Therefore, after a batch of vehicle-mounted gas cylinders are stretched and formed, the process requires the use of a cleaning fluid to clean the oil stains attached to the inner wall of the cup-shaped body of the vehicle-mounted gas cylinder.

[0003] The method for cleaning vehicle-borne gas cylinders in a certain workshop is: a worker first lifts up a vehicle-borne gas cylinder through a truss hoist located on the top of the workshop, and then transports the vehicle-borne gas cylinder to the top of the cleaning tank through the truss hoist, and then vertically immerses the hoisted vehicle-borne gas cylinder into the cleaning liquid in the cleaning tank. After immersion, the cleaning liquid in the cleaning tank flows into the vehicle-borne gas cylinder from the upper and lower ports of the vehicle-borne gas cylinder, and the cleaning liquid cleans off the oil stains attached to the inner wall of the vehicle-borne gas cylinder. After cleaning for a period of time, the cleaned vehicle-borne gas cylinder is lifted out of the cleaning tank through the truss hoist. After lifting it out, the worker removes the vehicle-borne gas cylinder from the truss hoist; after removal, the worker puts the vehicle-borne gas cylinder into a drying tunnel, and dries the cleaning liquid on the inner wall of the vehicle-borne gas cylinder through the heat in the drying tunnel; repeating the above operation multiple times can continuously clean multiple vehicle-borne gas cylinders.

[0004] However, although the method in the workshop can clean the stretched vehicle-mounted gas cylinder, it still has the following technical defects:

[0005] I. Before cleaning, it is necessary to manually tie up the vehicle-borne gas cylinders through the lifting ropes of the truss hoisting machine, and then the vehicle-borne gas cylinders to be cleaned can be lifted up; after cleaning, it is necessary to manually untie the lifting ropes, which undoubtedly increases the cleaning time of a single vehicle-borne gas cylinder, thereby reducing the cleaning efficiency of the vehicle-borne gas cylinders.

[0006] II. After the vehicle-mounted gas cylinder is cleaned, it is necessary to manually put the cleaned vehicle-mounted gas cylinder into the drying tunnel for drying, and the intermediate turnover process consumes a lot of time, thereby reducing the cleaning efficiency of the subsequent vehicle-mounted gas cylinders.

[0007] III. After the vehicle-borne gas cylinder was cleaned in the cleaning tank, the workers found that there was still oil stain attached to the curved surface 1 located inside the bottle mouth of the vehicle-borne gas cylinder. Therefore, there was a technical defect of incomplete cleaning. For this reason, it could only be cleaned back and forth multiple times, which undoubtedly increased the cleaning time and reduced the cleaning efficiency of the vehicle-borne gas cylinder.

[0008] Therefore, there is an urgent need for a cleaning line and method that greatly improves the cleaning efficiency of the vehicle-mounted gas cylinder and can thoroughly clean the oil stains attached to the curved surface of the vehicle-mounted gas cylinder. Summary of the invention

[0009] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic cleaning line and method for cleaning vehicle-mounted gas cylinders, which greatly improves the cleaning efficiency of vehicle-mounted gas cylinders and can thoroughly clean the oil stains attached to the curved surface of the vehicle-mounted gas cylinders.

[0010] The object of the present invention is achieved through the following technical solutions: a cleaning line for automatically cleaning vehicle-mounted gas cylinders, comprising a gantry fixed on a pad, on which a feed conveying roller, a cleaning trough and a discharge conveying roller are arranged in sequence from left to right, characterized in that a blocking mechanism for blocking the vehicle-mounted gas cylinder from moving to the right is arranged on the right side of the feed conveying roller, a screw nut pair is arranged on the gantry, a frame is fixed on the bottom surface of the nut of the screw nut pair, a clamping cylinder is fixed in the frame, a piston rod of the clamping cylinder penetrates downwardly through the bottom wall of the frame, and a cleaning component for clamping, rotating and swinging the vehicle-mounted gas cylinder to be cleaned is arranged on the extended end;

[0011] The cleaning assembly includes a self-locking hydraulic motor fixedly mounted on the extended end of the clamping cylinder piston rod, the output shaft of the self-locking hydraulic motor is arranged forward, and a rotating plate extending downward is welded on the conveying shaft, a fixed plate is welded on the bottom of the rotating plate, a main shaft is rotatably mounted on the bottom of the fixed plate through a bearing seat, and a mounting plate is welded on the bottom of the main shaft;

[0012] A horizontally arranged double-acting oil cylinder is fixedly arranged on the bottom surface of the mounting plate, and connecting plates are fixedly arranged on the acting ends of the two piston rods of the double-acting oil cylinder, and clamping rods extending to the left outside the mounting plate are welded on the two connecting plates, and limited seats are welded on the bottoms of the two clamping rods, and bell mouths are opened in the two limit seats along their axial directions, and the bell mouths match the outer wall of the bottle mouth of the vehicle-mounted gas cylinder; a fixed seat and a driving motor located on the right side of the double-acting oil cylinder are also fixedly arranged on the bottom surface of the mounting plate, and a horizontally arranged rotating shaft is rotatably installed in the fixed seat, the left end of the rotating shaft passes through the clamping rod on the right side, and a driving roller is fixedly connected to the extending end, and a transmission mechanism for driving the rotating shaft to rotate is arranged between the driving motor and the right end of the rotating shaft;

[0013] A swing mechanism for driving the main shaft to reciprocate around its own axis is provided on the top surface of the mounting plate;

[0014] A drying mechanism for drying the vehicle-mounted gas cylinder is arranged on the pad and between the discharge conveying roller and the cleaning tank.

[0015] Guard plates are welded on the front and rear edges of the feed conveying roller frame, and the longitudinal distance between the two guard plates is equal to the diameter of the vehicle-mounted gas cylinder.

[0016] The frame of the feeding conveying roller is fixed on the machine platform, and the machine platform is fixed on the pad.

[0017] The blocking mechanism is arranged on the table top of the machine platform, and comprises a blocking oil cylinder fixedly arranged on the table top of the machine platform, and a stopper is fixedly arranged on the action end of the piston rod of the blocking oil cylinder.

[0018] The screw-nut pair includes a nut, a screw rotatably mounted on the gantry, and a servo motor fixedly mounted on the outer wall of the gantry. The output shaft of the servo motor is connected to the right end of the screw. The nut is threadedly connected to the screw. A light rod slides through the nut. The two ends of the light rod are respectively fixedly mounted on the two columns of the gantry.

[0019] The transmission mechanism comprises a driven sprocket fixedly arranged on the right end of the rotating shaft and a driving sprocket fixedly arranged on the output shaft of the driving motor, and a chain is installed between the driving sprocket and the driven sprocket.

[0020] The swing mechanism includes a reciprocating oil cylinder fixed on the top surface of the mounting plate and a gear fixed on the main shaft. A horizontally arranged rack is fixed on the action end of the piston rod of the reciprocating oil cylinder, and the rack is meshed with the gear.

[0021] The drying mechanism includes a lifting cylinder fixed on a pad, a horizontal cylinder fixed on the action end of a piston rod of the lifting cylinder, a support plate fixed on the action end of the piston rod of the horizontal cylinder, a bent pipe welded on the top surface of the support plate, and a hot air blower connected to the right end of the bent pipe via a hose.

[0022] The cleaning line also includes a controller, which is electrically connected to the reciprocating cylinder, the lifting cylinder, the horizontal cylinder, the driving motor, the servo motor, the clamping cylinder, the self-locking hydraulic motor and the blocking cylinder via a signal line.

[0023] A method for automatically cleaning a vehicle-mounted gas cylinder comprises the following steps:

[0024] S1. The piston rod of the blocking cylinder of the control blocking mechanism extends upward, and the piston rod drives the block to move upward. When the piston rod of the blocking cylinder is fully extended, the block rises to the right side of the feed conveyor roller;

[0025] S2. The worker takes out a vehicle-borne gas cylinder to be cleaned, places the vehicle-borne gas cylinder on the top surface of the roller of the feed conveyor roller table, and ensures that the vehicle-borne gas cylinder is between two guard plates;

[0026] S3, control the feed conveyor roller to start, and each roller of the feed conveyor roller rotates clockwise, and the roller conveys the vehicle-borne gas cylinder thereon to the right. When the right bottle mouth of the vehicle-borne gas cylinder is blocked by the block, control the feed conveyor roller to close, and at this time the vehicle-borne gas cylinder is just under the two limit seats of the cleaning component;

[0027] S4, controlling the piston rod of the blocking cylinder of the blocking mechanism to retract downward, and the piston rod drives the block to move downward, so that the block moves downward;

[0028] S5. Clamping of vehicle-mounted gas cylinders, the specific operation steps are as follows:

[0029] S51, control the piston rod of the clamping cylinder to extend downward, the piston rod drives the cleaning assembly to move downward, the double-acting cylinder of the cleaning assembly moves downward, the double-acting cylinder drives the two clamping rods to move downward, the two clamping rods drive the limit seats to move downward at the same time, when the piston rod of the clamping cylinder extends downward to the set distance, the controller controls the clamping cylinder to close, at this time, the bell mouths of the two limit seats are just in the same horizontal line with the vehicle-borne gas cylinder, and at the same time, the cylindrical surface of the driving roller just contacts the top surface of the vehicle-borne gas cylinder;

[0030] S52, control the two piston rods of the double-acting oil cylinder to retract at the same time, the two piston rods drive the connecting plates connected thereto to make opposite movements, the two connecting plates drive the clamping rods connected thereto to make opposite movements, the two clamping rods drive the limit seats connected thereto to make opposite movements, the bell mouth of the limit seat on the left side moves toward the left bottle mouth of the vehicle-borne gas cylinder, and the bell mouth of the limit seat on the right side moves toward the right bottle mouth of the vehicle-borne gas cylinder. When the piston rods of the double-acting oil cylinder are fully retracted, the vehicle-borne gas cylinder is just restricted between the bell mouths of the two limit seats, thereby achieving the clamping of the vehicle-borne gas cylinder;

[0031] S6. Lifting of the vehicle-mounted gas cylinder: Control the piston rod of the clamping cylinder to retract upward, the piston rod drives the self-locking hydraulic motor to move upward, the self-locking hydraulic motor drives the rotating plate to move upward, the rotating plate drives the fixed plate to move upward, the fixed plate drives the mounting plate to move upward, the mounting plate drives the swing mechanism, the drive motor, the double-acting cylinder and the drive roller to move upward at the same time, the double-acting cylinder drives the two clamping rods to move upward at the same time, the two clamping rods drive the vehicle-mounted gas cylinder to move upward at the same time, thereby lifting the vehicle-mounted gas cylinder;

[0032] S7. Cleaning of oil stains on the inner wall of vehicle-mounted gas cylinders. Specific steps:

[0033] S71, control the servo motor to start, the servo motor drives the screw to rotate, the nut moves linearly to the right along the screw, the nut drives the frame to move to the right, the frame drives the clamping cylinder to move to the right, the clamping cylinder drives the cleaning component to move to the right, and the cleaning component moves toward the cleaning tank. When the servo motor runs for a set time, the controller controls the servo motor to turn off, and the vehicle-mounted gas cylinder enters the cleaning station;

[0034] S72, control the self-locking hydraulic motor to start, the output shaft of the self-locking hydraulic motor drives the rotating plate to rotate clockwise, the rotating plate drives the fixed plate to rotate synchronously, the fixed plate drives the mounting plate to rotate synchronously clockwise via the main shaft, the mounting plate drives the swing mechanism, the drive motor, the double-acting oil cylinder and the drive roller to rotate synchronously clockwise, the double-acting oil cylinder drives the two clamping rods to rotate clockwise at the same time, the two clamping rods drive the limit seats to rotate clockwise at the same time, the limit seats drive the vehicle-mounted gas cylinder to rotate clockwise, when the vehicle-mounted gas cylinder rotates 90°, the controller controls the self-locking hydraulic motor to close, at this time the vehicle-mounted gas cylinder is just in a vertical state and is directly above the cleaning tank;

[0035] S73, control the piston rod of the clamping oil cylinder to move downward, the piston rod drives the cleaning assembly to move downward, the two limit seats of the cleaning assembly move downward, the two limit seats drive the vehicle-mounted gas cylinder to move downward at the same time, the vehicle-mounted gas cylinder enters the cleaning liquid in the cleaning tank from top to bottom, after being immersed, the cleaning liquid in the cleaning tank flows into the vehicle-mounted gas cylinder from the upper and lower ports of the vehicle-mounted gas cylinder, and the cleaning liquid starts to clean the oil stains attached to the inner wall of the vehicle-mounted gas cylinder;

[0036] S74. During the cleaning process, the driving motor is controlled to start, the driving motor drives the driving sprocket to rotate, the driving sprocket drives the driven sprocket to rotate via the chain, the driven sprocket drives the rotating shaft to rotate around its own axis, the rotating shaft drives the driving roller to rotate, the driving roller drives the vehicle-borne gas cylinder to rotate around its own axis in the cleaning tank, so that the cleaning liquid in the vehicle-borne gas cylinder performs centrifugal motion, so that the cleaning liquid performing the centrifugal motion flushes away the oil stains attached to the inner wall of the vehicle-borne gas cylinder;

[0037] At the same time, the piston rod of the reciprocating oil cylinder is controlled to perform reciprocating telescopic motion, the piston rod drives the rack to perform reciprocating lifting motion, the rack drives the gear to perform reciprocating rotation motion, the gear drives the main shaft to rotate reciprocatingly, the main shaft drives the mounting plate to rotate back and forth, the mounting plate drives the double-acting oil cylinder to rotate back and forth, the double-acting oil cylinder drives the two clamping rods to rotate back and forth, the two clamping rods drive the corresponding limit seats to rotate back and forth, the limit seat drives the vehicle-borne gas cylinder to rotate back and forth in the cleaning tank, so that the cleaning liquid in the vehicle-borne gas cylinder shakes back and forth, so that the cleaning liquid doing the shaking motion washes away the oil stains attached to the inner wall of the vehicle-borne gas cylinder;

[0038] S75, after cleaning for a period of time, the cleaning of the vehicle-mounted gas cylinder is finally completed, and after cleaning, the driving motor and the reciprocating cylinder are controlled to be turned off;

[0039] S8. Drying of the cleaned vehicle-mounted gas cylinder, the specific operation steps are as follows:

[0040] S81, control the piston rod of the clamping cylinder to retract upward, the piston rod drives the cleaning assembly to move upward, the limit seat of the cleaning assembly moves upward, the limit seat drives the vehicle-borne gas cylinder to move upward, and the vehicle-borne gas cylinder is taken out of the cleaning tank;

[0041] S82, control the piston rod of the lifting cylinder to extend upward, and the piston rod drives the horizontal cylinder and the elbow to move upward at the same time. When the piston rod of the lifting cylinder is fully extended, the left end of the elbow is just flush with the top surface of the upper bottle mouth of the vehicle-mounted gas cylinder;

[0042] S83, control the piston rod of the horizontal oil cylinder to extend to the left, the piston rod drives the support plate to move to the left, and the support plate drives the elbow to move to the left. When the piston rod of the horizontal oil cylinder is fully extended, the left end of the elbow is just connected with the upper bottle mouth of the vehicle-mounted gas cylinder;

[0043] S84, control the hot air blower to start, the hot air blower produces hot air flow, the hot air flow sequentially passes through the hose, the right port of the elbow, the elbow, the left port of the elbow, and finally enters the vehicle-borne gas cylinder through the upper bottle opening of the vehicle-borne gas cylinder, and the hot air flow dries the cleaning liquid attached to the inner wall of the vehicle-borne gas cylinder. After drying for a period of time, the vehicle-borne gas cylinder can be finally dried;

[0044] S9. Output of the dried vehicle-mounted gas cylinder. The specific operation steps are as follows:

[0045] S91, control the piston rod of the horizontal oil cylinder to retract to the right, and then control the piston rod of the lifting oil cylinder to retract downward, so as to reset the bent pipe;

[0046] S92, control the output shaft of the self-locking hydraulic motor to rotate counterclockwise, the output shaft drives the rotating plate to rotate counterclockwise, the rotating plate drives the fixed plate to rotate synchronously, the fixed plate drives the mounting plate to rotate counterclockwise synchronously through the main shaft, when the output shaft rotates 90°, the controller controls the self-locking hydraulic motor to close, at this time the vehicle-mounted gas cylinder after drying is just in a horizontal state;

[0047] S93, control the servo motor to continue to start, the servo motor drives the screw to rotate, the nut continues to move to the right along the screw, the nut drives the clamping cylinder to move to the right, the clamping cylinder drives the cleaning component to move to the right, the cleaning component drives the vehicle-borne gas cylinder to move to the right, when the vehicle-borne gas cylinder moves to the top of the discharge conveyor roller, the controller controls the servo motor to shut down;

[0048] S94, control the piston rod of the clamping oil cylinder to extend downward, the piston rod drives the cleaning assembly to move downward, the two limit seats of the cleaning assembly to move downward, the limit seats drive the vehicle-borne gas cylinder to move downward, when the vehicle-borne gas cylinder contacts the roller of the discharge conveyor roller, control the two piston rods of the double-acting oil cylinder to extend simultaneously, the two piston rods drive the connecting plates connected thereto to move in opposite directions, the two connecting plates drive the clamping rods connected thereto to move in opposite directions, the two clamping rods drive the limit seats connected thereto to move in opposite directions, at which time the two limit seats are separated from the two bottle openings of the vehicle-borne gas cylinder;

[0049] S95. When the limit seat is separated from the vehicle-borne gas cylinder, the piston rod of the clamping oil cylinder is controlled to retract upward, and the piston rod drives the cleaning component to move upward, and the cleaning component moves away from the vehicle-borne gas cylinder; then the discharge conveying roller is controlled to start, and the roller of the discharge conveying roller drives the dried vehicle-borne gas cylinder to be conveyed to the right, so that the dried vehicle-borne gas cylinder is conveyed to the designated area;

[0050] S10. Repeat steps S1 to S9 to continuously clean and dry multiple vehicle-mounted gas cylinders.

[0051] The present invention has the following advantages: greatly improving the cleaning efficiency of the vehicle-mounted gas cylinder and being able to thoroughly clean away the oil stains attached to the curved surface of the vehicle-mounted gas cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the structure of the vehicle-mounted gas cylinder;

[0053] Figure 2 It is a structural schematic diagram of the present invention;

[0054] Figure 3 It is a schematic diagram of the structure of the cleaning component;

[0055] Figure 4 for Figure 3 AA section view;

[0056] Figure 5 It is a structural schematic diagram of the limit seat;

[0057] Figure 6 for Figure 5 Axonometric view of

[0058] Figure 7 It is a structural schematic diagram of the feed conveying roller table;

[0059] Figure 8 for Figure 7 Axonometric view of

[0060] Fig. 9 It is the installation diagram of the feed conveying roller and the blocking mechanism;

[0061] Fig.10 It is a structural schematic diagram of the drying mechanism;

[0062] Fig.11 It is a schematic diagram of the block rising to the right side of the feed conveyor roller;

[0063] Fig.12 This is a schematic diagram showing that the right side of the gas cylinder on the vehicle is blocked by a block;

[0064] Fig.13 is a schematic diagram showing the contact between the driving roller and the top surface of the vehicle-mounted gas cylinder;

[0065] Fig.14 A schematic diagram showing a vehicle-mounted gas cylinder being restricted between the bell mouths of two limit seats;

[0066] Fig.15 A schematic diagram for lifting the vehicle-mounted gas cylinder;

[0067] Fig.16 This is a schematic diagram of a vehicle-mounted gas cylinder entering a cleaning station;

[0068] Fig.17 It is a schematic diagram showing that the vehicle-mounted gas cylinder is in a vertical state and directly above the cleaning tank;

[0069] Fig.18 A schematic diagram of a vehicle-mounted gas cylinder entering the cleaning fluid in the cleaning tank from top to bottom;

[0070] Fig.19 It is a schematic diagram showing that the left end of the elbow is flush with the top surface of the upper bottle mouth of the vehicle-mounted gas cylinder;

[0071] Fig. 20 It is a schematic diagram showing that the left end of the elbow is connected to the upper bottle opening of the vehicle-mounted gas cylinder;

[0072] Fig.21 It is a schematic diagram of the vehicle-mounted gas cylinder moving to the top of the discharge conveyor roller;

[0073] Fig. 22 It is a schematic diagram of the contact between the vehicle-mounted gas cylinder and the roller of the discharge conveyor roller table;

[0074] Fig.23 This is a schematic diagram of the rollers of the discharge conveyor conveyor conveying the dried vehicle-mounted gas cylinders to the right;

[0075] In the figure:

[0076] 1-arc surface, 2-gantry, 3-feed conveyor roller, 4-cleaning tank, 5-discharge conveyor roller, 6-blocking mechanism, 7-screw nut pair, 8-frame, 9-clamping cylinder;

[0077] 10-cleaning assembly, 11-self-locking hydraulic motor, 12-output shaft, 13-rotating plate, 14-fixed plate, 15-bearing seat, 16-spindle, 17-mounting plate, 18-double-acting cylinder, 19-connecting plate, 20-clamping rod, 21-limiting seat, 22-bell mouth, 23-fixed seat, 24-driving motor, 25-rotating shaft, 26-driving roller, 27-transmission mechanism, 28-swing mechanism;

[0078] 29-drying mechanism, 30-guard plate, 31-machine table, 32-blocking cylinder, 33-blocking block;

[0079] 34-nut, 35-screw, 36-servo motor, 37-driven sprocket, 38-reciprocating cylinder, 39-gear, 40-rack, 41-lifting cylinder, 42-horizontal cylinder, 43-elevated pipe, 44-hose, 45-vehicle gas cylinder. DETAILED DESCRIPTION

[0080] The present invention is further described below in conjunction with the accompanying drawings, and the protection scope of the present invention is not limited to the following:

[0081] like Figure 2 to Figure 10 As shown, a cleaning line for automatically cleaning vehicle-mounted gas cylinders comprises a gantry 2 fixedly mounted on a pad, on which a feed conveyor roller 3, a cleaning trough 4 and a discharge conveyor roller 5 are arranged in sequence from left to right, and is characterized in that a blocking mechanism 6 for blocking the vehicle-mounted gas cylinder from moving to the right is arranged on the right side of the feed conveyor roller 3, a screw nut pair 7 is arranged on the gantry 2, a frame 8 is fixedly mounted on the bottom surface of the nut 34 of the screw nut pair 7, a clamping cylinder 9 is fixedly mounted in the frame, a piston rod of the clamping cylinder 9 downwardly penetrates the bottom wall of the frame 8, and a cleaning component 10 for clamping, rotating and swinging the vehicle-mounted gas cylinder to be cleaned is arranged on the extended end.

[0082] Guard plates 30 are welded on the front and rear sides of the frame of the feed conveyor roller 3, and the longitudinal spacing between the two guard plates 30 is equal to the diameter of the vehicle-mounted gas cylinder. The frame of the feed conveyor roller 3 is fixed on a machine table 31, and the machine table 31 is fixed on a pad. The blocking mechanism 6 is set on the table of the machine table 31, and the blocking mechanism 6 includes a blocking cylinder 32 fixed on the table of the machine table 31, and a stopper 33 is fixed on the action end of the piston rod of the blocking cylinder 32.

[0083] The cleaning assembly 10 includes a self-locking hydraulic motor 11 fixedly mounted on the extended end of the piston rod of the clamping cylinder 9, the output shaft 12 of the self-locking hydraulic motor 11 is arranged forward, and a rotating plate 13 extending downward is welded on the conveying shaft, a fixed plate 14 is welded to the bottom of the rotating plate 13, a main shaft 16 is rotatably mounted on the bottom of the fixed plate 14 via a bearing seat 15, and a mounting plate 17 is welded to the bottom of the main shaft 16;

[0084] A horizontally arranged double-acting oil cylinder 18 is fixedly arranged on the bottom surface of the mounting plate 17, and a connecting plate 19 is fixedly arranged on the working ends of the two piston rods of the double-acting oil cylinder 18. A clamping rod 20 extending to the left outside the mounting plate 17 is welded on the two connecting plates 19. A limiting seat 21 is welded to the bottom of the two clamping rods 20. A bell mouth 22 is opened in the two limiting seats 21 along the axial direction thereof, and the bell mouth 22 cooperates with the outer wall of the bottle mouth of the vehicle-mounted gas cylinder; a right-hand side of the double-acting oil cylinder 18 is also fixedly arranged on the bottom surface of the mounting plate 17. A fixed seat 23 and a driving motor 24 are provided on the side, a horizontally arranged rotating shaft 25 is rotatably installed in the fixed seat 23, the left end of the rotating shaft 25 passes through the clamping rod 20 on the right side, and a driving roller 26 is fixedly connected to the extending end, and a transmission mechanism 27 for driving the rotating shaft 25 to rotate is provided between the driving motor 24 and the right end of the rotating shaft 25, the transmission mechanism 27 includes a driven sprocket 37 fixedly provided on the right end of the rotating shaft 25, and a driving sprocket fixedly provided on the output shaft of the driving motor 24, and a chain is installed between the driving sprocket and the driven sprocket 37.

[0085] A swing mechanism 28 is provided on the top surface of the mounting plate 17 for driving the main shaft 16 to reciprocate around its own axis; the swing mechanism 28 includes a reciprocating cylinder 38 fixedly mounted on the top surface of the mounting plate 17 and a gear 39 fixedly mounted on the main shaft 16, and a horizontally arranged rack 40 is fixedly mounted on the active end of the piston rod of the reciprocating cylinder 38, and the rack 40 is meshed with the gear 39.

[0086] A drying mechanism 29 for drying vehicle-borne gas cylinders is provided on the pad and between the discharge conveyor roller 5 and the cleaning tank 4. The drying mechanism 29 includes a lifting cylinder 41 fixedly mounted on the pad, and a horizontal cylinder 42 fixedly mounted on the action end of the piston rod of the lifting cylinder 41. A support plate is fixedly mounted on the action end of the piston rod of the horizontal cylinder 42. A bent pipe 43 is welded on the top surface of the support plate. The right end of the bent pipe 43 is connected to a hot air blower via a hose 44.

[0087] The screw-nut pair 7 includes a nut 34, a screw 35 rotatably mounted on the gantry 2, and a servo motor 36 fixedly mounted on the outer wall of the gantry 2. The output shaft of the servo motor 36 is connected to the right end of the screw 35. The nut 34 is threadedly connected to the screw 35. A light rod slides through the nut 34, and the two ends of the light rod are respectively fixed on the two columns of the gantry 2.

[0088] The cleaning line also includes a controller, which is electrically connected to the reciprocating cylinder 38, the lifting cylinder 41, the horizontal cylinder 42, the drive motor 24, the servo motor 36, the clamping cylinder 9, the self-locking hydraulic motor 11 and the blocking cylinder 32 via a signal line. Workers can use the controller to control the extension or retraction of the piston rods of the reciprocating cylinder 38, the lifting cylinder 41, the horizontal cylinder 42, the clamping cylinder 9 and the blocking cylinder 32, and can also control the start or stop of the self-locking hydraulic motor 11, thereby having a high degree of automation.

[0089] A method for automatically cleaning a vehicle-mounted gas cylinder comprises the following steps:

[0090] S1, control the piston rod of the blocking cylinder 32 of the blocking mechanism 6 to extend upward, and the piston rod drives the block 33 to move upward. When the piston rod of the blocking cylinder 32 is fully extended, the block 33 rises to the right side of the feed conveyor roller 3, as shown in FIG. Fig.11 As shown;

[0091] S2. The worker takes out a vehicle-borne gas cylinder 45 to be cleaned, places the vehicle-borne gas cylinder 45 on the top surface of the roller of the feed conveyor roller 3, and ensures that the vehicle-borne gas cylinder 45 is between the two guard plates 30;

[0092] S3, control the feed conveyor roller 3 to start, and each roller of the feed conveyor roller 3 rotates clockwise, and the roller conveys the vehicle-borne gas cylinder 45 on it to the right. When the right bottle mouth of the vehicle-borne gas cylinder 45 is blocked by the block 33, as shown in FIG. Fig.12 As shown, the feed conveyor roller 3 is controlled to be closed, and at this time, the vehicle-mounted gas cylinder 45 is just below the two limit seats 21 of the cleaning assembly 10;

[0093] S4, controlling the piston rod of the blocking cylinder 32 of the blocking mechanism 6 to retract downward, and the piston rod drives the stopper 33 to move downward, so that the stopper 33 moves downward;

[0094] S5. Clamping of the vehicle-mounted gas cylinder 45, the specific operation steps are as follows:

[0095] S51, control the piston rod of the clamping cylinder 9 to extend downward, the piston rod drives the cleaning assembly 10 to move downward, the double-acting cylinder 18 of the cleaning assembly 10 moves downward, the double-acting cylinder 18 drives the two clamping rods 20 to move downward, the two clamping rods 20 drive the limit seats 21 to move downward at the same time, when the piston rod of the clamping cylinder 9 extends downward to the set distance, the controller controls the clamping cylinder 9 to close, at this time, the bell mouths 22 of the two limit seats 21 are just in the same horizontal straight line with the vehicle-borne gas cylinder 45, and at the same time, the cylindrical surface of the driving roller 26 is just in contact with the top surface of the vehicle-borne gas cylinder 45, such as Fig.13 As shown;

[0096] S52, control the two piston rods of the double-acting oil cylinder 18 to retract at the same time, the two piston rods drive the connecting plate 19 connected thereto to make opposite movements, the two connecting plates 19 drive the clamping rods 20 connected thereto to make opposite movements, the two clamping rods 20 drive the limit seats 21 connected thereto to make opposite movements, the bell mouth 22 of the left limit seat 21 moves toward the left bottle mouth of the vehicle-borne gas cylinder 45, and the bell mouth 22 of the right limit seat 21 moves toward the right bottle mouth of the vehicle-borne gas cylinder 45. When the piston rod of the double-acting oil cylinder 18 is fully retracted, the vehicle-borne gas cylinder 45 is just restricted between the bell mouths 22 of the two limit seats 21, as shown in FIG. Fig.14 As shown, the vehicle-mounted gas cylinder 45 is clamped;

[0097] Among them, it can be known from step S5 that it is only necessary to control the piston rod of the clamping cylinder 9 to extend downward so that the bell mouths 22 of the two limit seats 21 are in the same straight line with the vehicle-mounted gas cylinder 45, and then control the two piston rods of the double-acting cylinder 18 to retract at the same time, so as to quickly clamp the vehicle-mounted gas cylinder 45. Therefore, compared with the truss hoisting machine used in the workshop, this cleaning line does not need to tie up the vehicle-mounted gas cylinder 45 with a rope, shortens the cleaning time of a single vehicle-mounted gas cylinder, and thus greatly improves the cleaning efficiency of the vehicle-mounted gas cylinder.

[0098] S6. Lifting of the vehicle-borne gas cylinder 45: Control the piston rod of the clamping cylinder 9 to retract upward, the piston rod drives the self-locking hydraulic motor 11 to move upward, the self-locking hydraulic motor 11 drives the rotating plate 13 to move upward, the rotating plate 13 drives the fixed plate 14 to move upward, the fixed plate 14 drives the mounting plate 17 to move upward, the mounting plate 17 drives the swing mechanism 28, the drive motor 24, the double-acting cylinder 18 and the drive roller 26 to move upward at the same time, the double-acting cylinder 18 drives the two clamping rods 20 to move upward at the same time, the two clamping rods 20 drive the vehicle-borne gas cylinder 45 to move upward at the same time, so as to lift the vehicle-borne gas cylinder 45, as shown in FIG. Fig.15 As shown;

[0099] S7. Cleaning of oil stains on the inner wall of the vehicle-mounted gas cylinder 45, the specific operation steps are:

[0100] S71, control the servo motor 36 to start, the servo motor 36 drives the screw rod 35 to rotate, the nut 34 moves linearly to the right along the screw rod 35, the nut 34 drives the frame 8 to move to the right, the frame 8 drives the clamping cylinder 9 to move to the right, the clamping cylinder 9 drives the cleaning component 10 to move to the right, and the cleaning component 10 moves toward the cleaning tank 4. When the servo motor 36 runs to the set time, the controller controls the servo motor 36 to turn off. At this time, the vehicle-mounted gas cylinder 45 enters the cleaning station, such as Fig.16 As shown;

[0101] S72, control the self-locking hydraulic motor 11 to start, the output shaft 12 of the self-locking hydraulic motor 11 drives the rotating plate 13 to rotate clockwise, the rotating plate 13 drives the fixed plate 14 to rotate synchronously, the fixed plate 14 drives the mounting plate 17 to rotate synchronously clockwise via the main shaft 16, the mounting plate 17 drives the swing mechanism 28, the drive motor 24, the double-acting cylinder 18 and the drive roller 26 to rotate synchronously clockwise, the double-acting cylinder 18 drives the two clamping rods 20 to rotate clockwise at the same time, the two clamping rods 20 drive the limit seat 21 to rotate clockwise at the same time, the limit seat 21 drives the vehicle-borne gas cylinder 45 to rotate clockwise, when the vehicle-borne gas cylinder 45 rotates 90°, the controller controls the self-locking hydraulic motor 11 to close, at this time the vehicle-borne gas cylinder 45 is just in a vertical state and is directly above the cleaning tank 4, as shown in FIG. Fig.17 As shown;

[0102] S73, control the piston rod of the clamping oil cylinder 9 to move downward, the piston rod drives the cleaning assembly 10 to move downward, the two limit seats 21 of the cleaning assembly 10 move downward, the two limit seats 21 drive the vehicle-borne gas cylinder 45 to move downward at the same time, and the vehicle-borne gas cylinder 45 enters the cleaning liquid in the cleaning tank 4 from top to bottom, as shown in FIG. Fig.18 As shown, after immersion, the cleaning liquid in the cleaning tank flows into the vehicle-mounted gas cylinder from the upper and lower ports of the vehicle-mounted gas cylinder, and the cleaning liquid begins to clean the oil stains attached to the inner wall of the vehicle-mounted gas cylinder 45;

[0103] S74. During the cleaning process, the driving motor 24 is controlled to start, the driving motor 24 drives the driving sprocket to rotate, the driving sprocket drives the driven sprocket 37 to rotate via the chain, the driven sprocket 37 drives the rotating shaft 25 to rotate around its own axis, the rotating shaft 25 drives the driving roller 26 to rotate, the driving roller 26 drives the vehicle-borne gas cylinder 45 to rotate around its own axis in the cleaning tank 4, so that the cleaning liquid in the vehicle-borne gas cylinder 45 performs centrifugal motion, so that the cleaning liquid performing the centrifugal motion flushes away the oil stains attached to the inner wall of the vehicle-borne gas cylinder 45;

[0104] At the same time, the piston rod of the reciprocating oil cylinder 38 is controlled to perform reciprocating telescopic motion, the piston rod drives the rack 40 to perform reciprocating lifting motion, the rack 40 drives the gear 39 to perform reciprocating rotation motion, the gear 39 drives the main shaft 16 to rotate reciprocatingly, the main shaft 16 drives the mounting plate 17 to rotate back and forth, the mounting plate 17 drives the double-acting oil cylinder 18 to rotate back and forth, the double-acting oil cylinder 18 drives the two clamping rods 20 to rotate back and forth, the two clamping rods 20 drive the corresponding limit seats 21 to rotate back and forth, the limit seat 21 drives the vehicle-borne gas bottle 45 to rotate back and forth in the cleaning tank 4, so that the cleaning liquid in the vehicle-borne gas bottle 45 is shaken back and forth, so that the cleaning liquid doing the shaking motion washes away the oil stains attached to the inner wall of the vehicle-borne gas bottle 45;

[0105] S75, after cleaning for a period of time, the cleaning of the vehicle-mounted gas cylinder 45 is finally completed. After cleaning, the driving motor 24 and the reciprocating cylinder 38 are controlled to be turned off;

[0106] Among them, it can be known from step S7 that by controlling the drive motor 24 to start, the rotating shaft 25 rotates, the rotating shaft 25 drives the driving roller 26 to rotate synchronously, and the driving roller 26 drives the vehicle-mounted gas cylinder 45 to rotate, so that the cleaning liquid in the vehicle-mounted gas cylinder 45 performs centrifugal motion, and then the cleaning liquid performing centrifugal motion flushes away the oil stains attached to the inner wall of the vehicle-mounted gas cylinder 45; at the same time, by controlling the piston rod of the reciprocating cylinder 38 to perform reciprocating telescopic motion, the piston rod drives the rack 40 to perform reciprocating lifting and lowering motion, the rack 40 drives the gear 39 to perform reciprocating rotational motion, and the gear 39 drives the main shaft 16 to perform reciprocating rotation, so that the cleaning liquid in the vehicle-mounted gas cylinder 45 shakes back and forth, and then the cleaning liquid performing the shaking motion flushes away the oil stains attached to the inner wall of the vehicle-mounted gas cylinder 45.

[0107] Therefore, this cleaning line uses linkage cleaning to more thoroughly clean the oil stains attached to the curved surface 1 inside the bottle mouth of the vehicle-mounted gas cylinder 45. Compared with the cleaning method in the workshop, the cleaning is more thorough and does not require multiple reciprocating cleanings in the later stage, thereby greatly saving cleaning time and greatly improving the cleaning efficiency of the vehicle-mounted gas cylinder.

[0108] S8, drying of the cleaned vehicle-mounted gas cylinder 45, the specific operation steps are as follows:

[0109] S81, control the piston rod of the clamping cylinder 9 to retract upward, the piston rod drives the cleaning assembly 10 to move upward, the limit seat 21 of the cleaning assembly 10 moves upward, the limit seat 21 drives the vehicle-borne gas cylinder 45 to move upward, and the vehicle-borne gas cylinder 45 is taken out of the cleaning tank 4;

[0110] S82, control the piston rod of the lifting cylinder 41 to extend upward, and the piston rod drives the horizontal cylinder 42 and the curved pipe 43 to move upward at the same time. When the piston rod of the lifting cylinder 41 is fully extended, the left end of the curved pipe 43 is just flush with the top surface of the upper bottle mouth of the vehicle-mounted gas bottle 45. Fig.19 As shown;

[0111] S83, control the piston rod of the horizontal oil cylinder 42 to extend to the left, the piston rod drives the support plate to move to the left, and the support plate drives the elbow 43 to move to the left. When the piston rod of the horizontal oil cylinder 42 is fully extended, the left end of the elbow 43 is just connected to the upper bottle mouth of the vehicle-mounted gas bottle 45. Fig. 20 As shown;

[0112] S84, control the hot air blower to start, the hot air blower produces hot air flow, the hot air flow sequentially passes through the hose, the right port of the elbow 43, the elbow 43, the left port of the elbow 43, and finally enters the vehicle-borne gas bottle 45 through the upper bottle mouth of the vehicle-borne gas bottle 45, and the hot air flow dries the cleaning liquid attached to the inner wall of the vehicle-borne gas bottle 45. After drying for a period of time, the vehicle-borne gas bottle 45 can be finally dried;

[0113] Among them, it can be known from step S8 that after the vehicle-borne gas cylinder 45 is cleaned by this cleaning line and lifted out of the cleaning tank 4, the vehicle-borne gas cylinder 45 has entered the drying station, and then the cleaning liquid on the inner wall of the vehicle-borne gas cylinder 45 is directly dried by the drying mechanism 29, realizing automatic online drying of the vehicle-borne gas cylinder 45. Therefore, compared with the method in the workshop, this cleaning line does not need to manually put the cleaned vehicle-borne gas cylinder 45 into the drying tunnel for drying, which greatly saves the intermediate turnover time, thereby improving the drying efficiency of the vehicle-borne gas cylinder, and further improving the cleaning efficiency of the subsequent vehicle-borne gas cylinder.

[0114] S9, output of the dried vehicle-mounted gas cylinder 45, the specific operation steps are:

[0115] S91, control the piston rod of the horizontal oil cylinder 42 to retract to the right, and then control the piston rod of the lifting oil cylinder 41 to retract downward, so that the bent pipe 43 is reset;

[0116] S92, control the output shaft 12 of the self-locking hydraulic motor 11 to rotate counterclockwise, the output shaft 12 drives the rotating plate 13 to rotate counterclockwise, the rotating plate 13 drives the fixed plate 14 to rotate synchronously, the fixed plate 14 drives the mounting plate 17 to rotate counterclockwise synchronously via the main shaft 16, when the output shaft 12 rotates 90°, the controller controls the self-locking hydraulic motor 11 to turn off, at which time the dried vehicle-mounted gas cylinder 45 is just in a horizontal state;

[0117] S93, control the servo motor 36 to continue to start, the servo motor 36 drives the screw rod 35 to rotate, the nut 34 continues to move rightward along the screw rod 35, the nut 34 drives the clamping cylinder 9 to move rightward, the clamping cylinder 9 drives the cleaning component 10 to move rightward, the cleaning component 10 drives the vehicle-borne gas cylinder 45 to move rightward, when the vehicle-borne gas cylinder 45 moves to the top of the discharge conveyor roller 5, as shown in FIG. Fig.21 As shown, the controller controls the servo motor 36 to turn off;

[0118] S94, control the piston rod of the clamping oil cylinder 9 to extend downward, the piston rod drives the cleaning assembly 10 to move downward, the two limit seats 21 of the cleaning assembly 10 move downward, the limit seats 21 drive the vehicle-borne gas cylinder 45 to move downward, when the vehicle-borne gas cylinder 45 contacts the roller of the discharge conveyor roller 5, as shown in FIG. Fig. 22As shown, the two piston rods of the double-acting oil cylinder 18 are controlled to extend simultaneously, and the two piston rods drive the connecting plates 19 connected thereto to move in opposite directions, and the two connecting plates 19 drive the clamping rods 20 connected thereto to move in opposite directions, and the two clamping rods 20 drive the limit seats 21 connected thereto to move in opposite directions, and at this time, the two limit seats 21 are separated from the two bottle openings of the vehicle-mounted gas cylinder 45;

[0119] S95, when the limit seat 21 is separated from the vehicle-borne gas cylinder 45, the piston rod of the clamping cylinder 9 is controlled to retract upward, and the piston rod drives the cleaning component 10 to move upward, and the cleaning component 10 moves away from the vehicle-borne gas cylinder 45; then the discharge conveyor roller 5 is controlled to start, and the roller of the discharge conveyor roller 5 drives the dried vehicle-borne gas cylinder 45 to be transported to the right, such as Fig.23 As shown, the dried vehicle-mounted gas cylinder 45 is transported to a designated area;

[0120] S100, by repeating the operations of steps S1 to S9, a plurality of vehicle-mounted gas cylinders 45 can be cleaned and dried continuously.

[0121] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cleaning line for automatically cleaning vehicle-mounted gas cylinders, comprising a gantry (2) fixed on a pad, on which a feed conveyor roller (3), a cleaning tank (4) and a discharge conveyor roller (5) are arranged in sequence from left to right, characterized in that: A blocking mechanism (6) for blocking the vehicle-borne gas cylinder from moving rightward is arranged on the right side of the feed conveying roller (3); a screw nut pair (7) is arranged on the gantry (2); a frame (8) is fixedly arranged on the bottom surface of the nut (34) of the screw nut pair (7); a clamping oil cylinder (9) is fixedly arranged in the frame; a piston rod of the clamping oil cylinder (9) penetrates downward through the bottom wall of the frame (8); and a cleaning component (10) for clamping, rotating and swinging the vehicle-borne gas cylinder to be cleaned is arranged on the extended end; The cleaning assembly (10) comprises a self-locking hydraulic motor (11) fixedly mounted on the extended end of the piston rod of the clamping oil cylinder (9), the output shaft (12) of the self-locking hydraulic motor (11) being arranged forward, and a rotating plate (13) extending downwardly is welded on the conveying shaft, a fixed plate (14) is welded to the bottom of the rotating plate (13), a main shaft (16) is rotatably mounted on the bottom of the fixed plate (14) via a bearing seat (15), and a mounting plate (17) is welded to the bottom of the main shaft (16); A double-acting oil cylinder (18) is fixedly arranged horizontally on the bottom surface of the mounting plate (17), and connecting plates (19) are fixedly arranged on the working ends of the two piston rods of the double-acting oil cylinder (18). The two connecting plates (19) are welded with clamping rods (20) extending to the left outside the mounting plate (17), and the bottoms of the two clamping rods (20) are welded with limit seats (21), and the two limit seats (21) are provided with bell mouths (22) along their axial directions, and the bell mouths (22) are aligned with the bottle mouths of the vehicle-mounted gas cylinders. The outer wall of the mounting plate (17) is matched; a fixing seat (23) and a driving motor (24) are fixedly provided on the bottom surface of the mounting plate (17) and are located on the right side of the double-acting oil cylinder (18); a horizontally arranged rotating shaft (25) is rotatably installed in the fixing seat (23); the left end of the rotating shaft (25) passes through the clamping rod (20) on the right side, and a driving roller (26) is fixedly connected to the extended end; a transmission mechanism (27) for driving the rotating shaft (25) to rotate is provided between the driving motor (24) and the right end of the rotating shaft (25); A swing mechanism (28) is provided on the top surface of the mounting plate (17) for driving the main shaft (16) to reciprocate around its own axis; A drying mechanism (29) for drying the vehicle-mounted gas cylinder is provided on the pad and between the discharge conveyor roller (5) and the cleaning tank (4).

2. The automatic cleaning line for cleaning vehicle-mounted gas cylinders according to claim 1 is characterized in that: Guard plates (30) are welded on the front and rear edges of the frame of the feed conveying roller (3), and the longitudinal distance between the two guard plates (30) is equal to the diameter of the vehicle-mounted gas cylinder.

3. The automatic cleaning line for cleaning vehicle-mounted gas cylinders according to claim 2 is characterized by: The frame of the feed conveying roller (3) is fixed on a machine platform (31), and the machine platform (31) is fixed on a pad.

4. The automatic cleaning line for cleaning vehicle-mounted gas cylinders according to claim 3 is characterized by: The blocking mechanism (6) is arranged on the table top of the machine table (31), and comprises a blocking oil cylinder (32) fixedly arranged on the table top of the machine table (31), and a blocking block (33) is fixedly arranged on the action end of the piston rod of the blocking oil cylinder (32).

5. The automatic cleaning line for cleaning vehicle-mounted gas cylinders according to claim 4 is characterized in that: The screw rod and nut pair (7) comprises a nut (34), a screw rod (35) rotatably mounted on the gantry (2), and a servo motor (36) fixedly mounted on the outer wall of the gantry (2); the output shaft of the servo motor (36) is connected to the right end of the screw rod (35); the nut (34) is threadedly connected to the screw rod (35); a light rod is slidably penetrated in the nut (34); and the two ends of the light rod are respectively fixedly mounted on two upright posts of the gantry (2).

6. The automatic cleaning line for cleaning vehicle-mounted gas cylinders according to claim 5 is characterized by: The transmission mechanism (27) comprises a driven sprocket (37) fixedly mounted on the right end of the rotating shaft (25) and a driving sprocket fixedly mounted on the output shaft of the driving motor (24), and a chain is installed between the driving sprocket and the driven sprocket (37).

7. The automatic cleaning line for cleaning vehicle-mounted gas cylinders according to claim 6 is characterized by: The swing mechanism (28) includes a reciprocating cylinder (38) fixedly mounted on the top surface of the mounting plate (17), and a gear (39) fixedly mounted on the main shaft (16). A horizontally mounted rack (40) is fixedly mounted on the action end of the piston rod of the reciprocating cylinder (38), and the rack (40) is meshed with the gear (39).

8. The automatic cleaning line for cleaning vehicle-mounted gas cylinders according to claim 7 is characterized by: The drying mechanism (29) comprises a lifting cylinder (41) fixedly mounted on a pad, and a horizontal cylinder (42) fixedly mounted on the action end of a piston rod of the lifting cylinder (41). A support plate is fixedly mounted on the action end of the piston rod of the horizontal cylinder (42). A bent pipe (43) is welded on the top surface of the support plate. The right end of the bent pipe (43) is connected to a hot air blower via a hose (44).

9. The automatic cleaning line for cleaning vehicle-mounted gas cylinders according to claim 8 is characterized by: The cleaning line also includes a controller, which is electrically connected to a reciprocating cylinder (38), a lifting cylinder (41), a horizontal cylinder (42), a drive motor (24), a servo motor (36), a clamping cylinder (9), a self-locking hydraulic motor (11) and a blocking cylinder (32) via a signal line.

10. A method for automatically cleaning vehicle-mounted gas cylinders, using the automatic cleaning line for cleaning vehicle-mounted gas cylinders according to claim 9, characterized in that: It includes the following steps: S1, controlling the piston rod of the blocking cylinder (32) of the blocking mechanism (6) to extend upward, and the piston rod drives the block (33) to move upward. When the piston rod of the blocking cylinder (32) is fully extended, the block (33) rises to the right side of the feed conveyor roller (3); S2. A worker takes out a vehicle-borne gas cylinder (45) to be cleaned, places the vehicle-borne gas cylinder (45) on the top surface of the roller of the feed conveyor roller table (3), and ensures that the vehicle-borne gas cylinder (45) is between the two guard plates (30); S3, the feed conveyor roller conveyor (3) is controlled to start, and each roller of the feed conveyor roller conveyor (3) rotates clockwise, and the roller conveys the vehicle-borne gas bottle (45) thereon to the right. When the right bottle mouth of the vehicle-borne gas bottle (45) is blocked by the block (33), the feed conveyor roller conveyor (3) is controlled to close, and at this time, the vehicle-borne gas bottle (45) is just below the two limit seats (21) of the cleaning component (10); S4, controlling the piston rod of the blocking oil cylinder (32) of the blocking mechanism (6) to retract downward, and the piston rod drives the blocking block (33) to move downward, so that the blocking block (33) moves downward; S5, clamping of the vehicle-mounted gas cylinder (45), the specific operation steps are as follows: S51, control the piston rod of the clamping cylinder (9) to extend downward, the piston rod drives the cleaning assembly (10) to move downward, the double-acting cylinder (18) of the cleaning assembly (10) moves downward, the double-acting cylinder (18) drives the two clamping rods (20) to move downward, the two clamping rods (20) drive the limit seat (21) to move downward at the same time, when the piston rod of the clamping cylinder (9) extends downward to a set distance, the controller controls the clamping cylinder (9) to close, at this time, the bell mouths (22) of the two limit seats (21) are just in the same horizontal straight line with the vehicle-borne gas cylinder (45), and at the same time, the cylindrical surface of the driving roller (26) is just in contact with the top surface of the vehicle-borne gas cylinder (45); S52, control the two piston rods of the double-acting oil cylinder (18) to retract simultaneously, the two piston rods drive the connecting plate (19) connected thereto to make opposite movements, the two connecting plates (19) drive the clamping rods (20) connected thereto to make opposite movements, the two clamping rods (20) drive the limiting seats (21) connected thereto to make opposite movements, the bell mouth (22) of the left limiting seat (21) moves toward the left bottle mouth of the vehicle-borne gas cylinder (45), and the bell mouth (22) of the right limiting seat (21) moves toward the right bottle mouth of the vehicle-borne gas cylinder (45), when the piston rod of the double-acting oil cylinder (18) is fully retracted, the vehicle-borne gas cylinder (45) is just restricted between the bell mouths (22) of the two limiting seats (21), thereby achieving the clamping of the vehicle-borne gas cylinder (45); S6. Lifting the vehicle-mounted gas cylinder (45): the piston rod of the clamping oil cylinder (9) is controlled to retract upward, the piston rod drives the self-locking hydraulic motor (11) to move upward, the self-locking hydraulic motor (11) drives the rotating plate (13) to move upward, the rotating plate (13) drives the fixed plate (14) to move upward, the fixed plate (14) drives the mounting plate (17) to move upward, the mounting plate (17) drives the swing mechanism (28), the drive motor (24), the double-acting oil cylinder (18) and the drive roller (26) to move upward at the same time, the double-acting oil cylinder (18) drives the two clamping rods (20) to move upward at the same time, the two clamping rods (20) drive the vehicle-mounted gas cylinder (45) to move upward at the same time, thereby lifting the vehicle-mounted gas cylinder (45); S7, cleaning of the oil stain on the inner wall of the vehicle-mounted gas cylinder (45), the specific operation steps are: S71, control the servo motor (36) to start, the servo motor (36) drives the screw rod (35) to rotate, the nut (34) moves linearly to the right along the screw rod (35), the nut (34) drives the frame (8) to move to the right, the frame (8) drives the clamping cylinder (9) to move to the right, the clamping cylinder (9) drives the cleaning component (10) to move to the right, and the cleaning component (10) moves toward the cleaning tank (4). When the servo motor (36) runs for a set time, the controller controls the servo motor (36) to turn off, and at this time, the vehicle-mounted gas cylinder (45) enters the cleaning station; S72, the self-locking hydraulic motor (11) is controlled to start, the output shaft (12) of the self-locking hydraulic motor (11) drives the rotating plate (13) to rotate clockwise, the rotating plate (13) drives the fixed plate (14) to rotate synchronously, the fixed plate (14) drives the mounting plate (17) to rotate synchronously clockwise via the main shaft (16), the mounting plate (17) drives the swing mechanism (28), the drive motor (24), the double-acting cylinder (18) and the drive roller (26) to rotate synchronously. The double-acting oil cylinder (18) drives the two clamping rods (20) to rotate clockwise at the same time, and the two clamping rods (20) drive the limit seat (21) to rotate clockwise at the same time. The limit seat (21) drives the vehicle-mounted gas bottle (45) to rotate clockwise. When the vehicle-mounted gas bottle (45) rotates 90 degrees, the controller controls the self-locking hydraulic motor (11) to turn off. At this time, the vehicle-mounted gas bottle (45) is just in a vertical state and is located directly above the cleaning tank (4); S73, control the piston rod of the clamping oil cylinder (9) to move downward, the piston rod drives the cleaning assembly (10) to move downward, the two limit seats (21) of the cleaning assembly (10) move downward, the two limit seats (21) drive the vehicle-mounted gas bottle (45) to move downward at the same time, the vehicle-mounted gas bottle (45) enters the cleaning liquid in the cleaning tank (4) from top to bottom, after being immersed, the cleaning liquid in the cleaning tank flows into the vehicle-mounted gas bottle from the upper and lower ports of the vehicle-mounted gas bottle, and the cleaning liquid starts to clean the oil stains attached to the inner wall of the vehicle-mounted gas bottle (45); S74, during the cleaning process, the driving motor (24) is controlled to start, the driving motor (24) drives the driving sprocket to rotate, the driving sprocket drives the driven sprocket (37) to rotate via the chain, the driven sprocket (37) drives the rotating shaft (25) to rotate around its own axis, the rotating shaft (25) drives the driving roller (26) to rotate, the driving roller (26) drives the vehicle-mounted gas cylinder (45) to rotate around its own axis in the cleaning tank (4), so that the cleaning liquid in the vehicle-mounted gas cylinder (45) performs centrifugal motion, so that the cleaning liquid performing the centrifugal motion washes away the oil stains attached to the inner wall of the vehicle-mounted gas cylinder (45); At the same time, the piston rod of the reciprocating oil cylinder (38) is controlled to perform reciprocating telescopic motion, the piston rod drives the rack (40) to perform reciprocating lifting motion, the rack (40) drives the gear (39) to perform reciprocating rotation motion, the gear (39) drives the main shaft (16) to rotate reciprocatingly, the main shaft (16) drives the mounting plate (17) to rotate reciprocatingly back and forth, the mounting plate (17) drives the double-acting oil cylinder (18) to rotate reciprocatingly back and forth, the double-acting oil cylinder (18) drives the two clamping rods (20) to rotate reciprocatingly back and forth, the two clamping rods (20) drive the corresponding limit seats (21) to rotate reciprocatingly back and forth, the limit seats (21) drive the vehicle-borne gas cylinder (45) to rotate reciprocatingly back and forth in the cleaning tank (4), so that the cleaning liquid in the vehicle-borne gas cylinder (45) shakes back and forth, so that the cleaning liquid that shakes flushes away the oil stains attached to the inner wall of the vehicle-borne gas cylinder (45); S75, after cleaning for a period of time, the cleaning of the vehicle-mounted gas cylinder (45) is finally completed, and after cleaning, the driving motor (24) and the reciprocating cylinder (38) are controlled to be turned off; S8, drying of the cleaned vehicle-mounted gas cylinder (45), the specific operation steps are as follows: S81, the piston rod of the clamping oil cylinder (9) is controlled to retract upward, the piston rod drives the cleaning assembly (10) to move upward, the limiting seat (21) of the cleaning assembly (10) moves upward, the limiting seat (21) drives the vehicle-mounted gas cylinder (45) to move upward, and the vehicle-mounted gas cylinder (45) is taken out of the cleaning tank (4); S82, the piston rod of the lifting cylinder (41) is controlled to extend upward, and the piston rod drives the horizontal cylinder (42) and the curved pipe (43) to move upward at the same time. When the piston rod of the lifting cylinder (41) is fully extended, the left end of the curved pipe (43) is just flush with the top surface of the upper bottle mouth of the vehicle-mounted gas bottle (45); S83, control the piston rod of the horizontal oil cylinder (42) to extend to the left, the piston rod drives the support plate to move to the left, and the support plate drives the curved pipe (43) to move to the left. When the piston rod of the horizontal oil cylinder (42) is fully extended, the left end of the curved pipe (43) is just connected to the upper bottle mouth of the vehicle-mounted gas bottle (45); S84, controlling the hot air blower to start, the hot air blower produces a hot air flow, the hot air flow sequentially passes through the hose, the right end of the curved pipe (43), the curved pipe (43), the left end of the curved pipe (43), and finally enters the vehicle-borne gas bottle (45) through the upper bottle opening of the vehicle-borne gas bottle (45), and the hot air flow dries the cleaning liquid attached to the inner wall of the vehicle-borne gas bottle (45). After drying for a period of time, the vehicle-borne gas bottle (45) can be finally dried; S9, output of the dried vehicle-mounted gas cylinder (45), the specific operation steps are: S91, control the piston rod of the horizontal oil cylinder (42) to retract to the right, and then control the piston rod of the lifting oil cylinder (41) to retract downward, so that the bent pipe (43) is reset; S92, controlling the output shaft (12) of the self-locking hydraulic motor (11) to rotate counterclockwise, the output shaft (12) drives the rotating plate (13) to rotate counterclockwise, the rotating plate (13) drives the fixed plate (14) to rotate synchronously, the fixed plate (14) drives the mounting plate (17) to rotate synchronously counterclockwise via the main shaft (16), when the output shaft (12) rotates 90°, the controller controls the self-locking hydraulic motor (11) to turn off, at which time the dried vehicle-mounted gas cylinder (45) is just in a horizontal state; S93, control the servo motor (36) to continue to start, the servo motor (36) drives the screw rod (35) to rotate, the nut (34) continues to move rightward along the screw rod (35), the nut (34) drives the clamping cylinder (9) to move rightward, the clamping cylinder (9) drives the cleaning component (10) to move rightward, the cleaning component (10) drives the vehicle-borne gas cylinder (45) to move rightward, and when the vehicle-borne gas cylinder (45) moves to the top of the discharge conveyor roller (5), the controller controls the servo motor (36) to turn off; S94, control the piston rod of the clamping oil cylinder (9) to extend downward, the piston rod drives the cleaning assembly (10) to move downward, the two limit seats (21) of the cleaning assembly (10) to move downward, the limit seats (21) drive the vehicle-borne gas cylinder (45) to move downward, when the vehicle-borne gas cylinder (45) contacts the roller of the discharge conveyor roller (5), control the two piston rods of the double-acting oil cylinder (18) to extend simultaneously, the two piston rods drive the connecting plates (19) connected thereto to move in opposite directions, the two connecting plates (19) drive the clamping rods (20) connected thereto to move in opposite directions, the two clamping rods (20) drive the limit seats (21) connected thereto to move in opposite directions, at which time the two limit seats (21) are separated from the two bottle openings of the vehicle-borne gas cylinder (45); S95, when the limit seat (21) is separated from the vehicle-borne gas cylinder (45), the piston rod of the clamping oil cylinder (9) is controlled to retract upward, and the piston rod drives the cleaning component (10) to move upward, and the cleaning component (10) moves in a direction away from the vehicle-borne gas cylinder (45); then the discharge conveying roller (5) is controlled to start, and the roller of the discharge conveying roller (5) drives the dried vehicle-borne gas cylinder (45) to be conveyed to the right, thereby conveying the dried vehicle-borne gas cylinder (45) to a designated area; S100, by repeating the operations of steps S1 to S9, a plurality of vehicle-mounted gas cylinders (45) can be cleaned and dried continuously.

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