Automatic cleaning device for chromatographic sample bottles and method of use

Abstract

The present invention discloses an automated cleaning device for chromatographic sample bottles and a method for use thereof. The cleaning device comprises an opening mechanism, a pouring mechanism provided at the discharge end of the opening mechanism, a flushing mechanism provided at the discharge end of the pouring mechanism, an ultrasonic cleaning mechanism provided at the discharge end of the flushing mechanism, the opening mechanism, the pouring mechanism, the flushing mechanism, and the ultrasonic cleaning mechanism all being connected to a controller, which enables the opening mechanism, the pouring mechanism, the flushing mechanism, and the ultrasonic cleaning mechanism to cooperate with each other to achieve continuous operation; the opening mechanism comprises a vibrating disk connected to the controller, the vibrating disk being provided with a feeding channel that spirals upward and has a U-shaped cross section, one side of the feeding channel being provided with an inclined slideway with a U-shaped cross section, the slideway being provided with a feed notch, a screening mechanism, and a cap opener in sequence from the upper end to the lower end. The present invention has the advantages of high cleaning efficiency and high cleaning pass rate.

Description

Technical Field

[0001] The invention belongs to the field of chromatographic sample bottle cleaning, and in particular relates to an automatic chromatographic sample bottle cleaning device and a use method. Background Art

[0002] Chromatographic sample bottles are widely used in environmental testing and are used in chromatographic analysis. They consist of a glass bottle with an inward-contracting opening that threads onto a plastic cap, forming an annular groove between the bottle and cap. Due to the large number of samples required, a large number of chromatographic sample bottles are required during testing. Due to the relatively high cost of the bottles, they are typically thoroughly cleaned after use and reused.

[0003] The existing cleaning process is to open the bottle cap, pour out the waste liquid in the bottle, rinse the bottle with tap water, ultrasonically clean the bottle with pure water, soak and clean the bottle with ethanol, and dry it.

[0004] Currently, chromatographic sample vials are cleaned manually, resulting in low cleaning efficiency. Due to the large number of vials, testing personnel spend a significant amount of time cleaning, impacting normal testing operations. Furthermore, chromatographic sample vials require high cleanliness levels, and manual cleaning carries the risk of human error, such as missed cleaning and insufficient rinsing. This can lead to some vials failing to meet requirements, resulting in a low cleaning pass rate and increased testing errors.

[0005] Therefore, manual cleaning of chromatographic sample bottles has the defects of low cleaning efficiency and low cleaning qualification rate. Summary of the Invention

[0006] The object of the present invention is to provide an automatic cleaning device for chromatographic sample bottles and a method for using the same, which has the advantages of high cleaning efficiency and high cleaning pass rate.

[0007] The technical solution of the present invention is as follows: an automatic cleaning device for chromatographic sample bottles includes a cover opening mechanism, a pouring mechanism is provided at the discharge end of the cover opening mechanism, a flushing mechanism is provided at the discharge end of the pouring mechanism, and an ultrasonic cleaning mechanism is provided at the discharge end of the flushing mechanism. The cover opening mechanism, the pouring mechanism, the flushing mechanism and the ultrasonic cleaning mechanism are all connected to a controller, and the controller enables the cover opening mechanism, the pouring mechanism, the flushing mechanism and the ultrasonic cleaning mechanism to cooperate with each other to achieve continuous operation.

[0008] In the aforementioned automatic cleaning device for chromatographic sample bottles, the opening mechanism includes a vibrating plate connected to a controller, and a feeding channel with a spiral upward and a U-shaped cross-section is provided on the vibrating plate. An inclined slide is provided on one side of the feeding channel, and the slide cross-section is U-shaped. The slide is provided with a feed notch, a screening mechanism and a cover opener from the upper end to the lower end.

[0009] In the aforementioned automatic cleaning device for chromatographic sample bottles, the screening mechanism includes a first through hole and a second through hole respectively located on both sides of the slide, and also includes a first cylinder fixed on the outside of the slide, the first cylinder is connected to the controller through a first solenoid valve, and the telescopic end of the first cylinder is provided with a push plate, which is located on the axis of the second through hole. A rib is provided on the bottom surface of the slide, and the rib is located on the rear side of the screening mechanism; a first distance sensor connected to the controller is provided between the first through hole and the second through hole, and the first distance sensor is located above the bottom surface of the slide.

[0010] In the aforementioned automatic cleaning device for chromatographic sample bottles, the cover opener includes a third through hole and a fourth through hole respectively located on both sides of the slide, a rubber plate is provided in the fourth through hole, a first baffle connected to the slide is provided on the outer side of the rubber plate, a first bracket is provided at the outer end of the third through hole, a slide rail is provided on the first bracket, a slide rail is provided above the slide rail, the slide rail is connected to the slide rail through a slider, a second cylinder is provided on the first bracket, the second cylinder is connected to the controller through a second solenoid valve, the output end of the second cylinder is connected to the slide, a first motor connected to the controller is provided on the slide, a rotating plate is provided at the output end of the first motor, at least two protrusions are provided on the end surface of the rotating plate, and a disengagement shaft fixed to the first bracket is provided on both sides of the rotating plate; the cover opener also includes a limiting plate, which is fixed on the inner side wall of the slide, and the limiting plate is located on the rear side of the third through hole; a second distance sensor connected to the controller is provided between the third through hole and the fourth through hole, and the second distance sensor is located above the bottom surface of the slide.

[0011] In the aforementioned automatic cleaning device for chromatographic sample bottles, the dumping mechanism includes a second bracket, a turntable is provided above the second bracket, a second motor connected to the controller is provided on the second bracket, the output end of the second motor is connected to the turntable, a support sleeve is provided on the turntable, and a plurality of avoidance gaps are provided on the top of the support sleeve.

[0012] In the aforementioned automatic cleaning device for chromatographic sample bottles, a second baffle is provided at the lower end of the slide rail, a flip notch is provided at the lower end of the slide rail, the flip notch is located above the support sleeve, and an arc-shaped groove is provided on the inner bottom surface of the lower end of the slide rail, one end of the groove is connected to the flip notch.

[0013] In the aforementioned automatic cleaning device for chromatographic sample bottles, the flushing mechanism includes a rotary joint located above the turntable, the rotating end of the rotary joint is connected to a water source via a water pump, the water pump is connected to a controller, the fixed end of the rotary joint is provided with a multi-head pipe joint, the pipe joint is provided with a water inlet and multiple water outlets, the water inlet is connected to the rotary joint, the water outlet is connected to a flushing needle via a pipe, a third solenoid valve connected to the controller is provided on the pipe, the multiple flushing needles are respectively located on the inner sides of the multiple avoidance gaps, and multiple water spray ports are provided on the outer circumference of the flushing needle;

[0014] A discharge plate which is arc-shaped when viewed from above is provided above the turntable, a slope is provided on the top of the discharge plate, and an outer peripheral surface of the discharge plate is close to the inner side of the distribution circle of the flushing needle.

[0015] In the aforementioned automatic cleaning device for chromatographic sample bottles, the ultrasonic cleaning mechanism includes a first ultrasonic cleaning machine and a second ultrasonic cleaning machine. The first ultrasonic cleaning machine is provided with a first cleaning tank, and the second ultrasonic cleaning machine is provided with a second cleaning tank. A first conveyor is provided in the first cleaning tank, and the discharge end of the first conveyor extends obliquely upward to above the second cleaning tank. A second conveyor is provided in the second cleaning tank, and the feed end of the second conveyor is located below the discharge end of the first conveyor. The discharge end of the second conveyor extends obliquely upward out of the second cleaning tank, and a container with a top opening is provided below the discharge end of the second conveyor.

[0016] In the method for using the aforementioned automatic chromatographic sample bottle cleaning device, when cleaning the chromatographic sample bottle, pure water is poured into the first cleaning tank and ethanol is poured into the second cleaning tank.

[0017] In the method for using the aforementioned automatic cleaning device for chromatographic sample bottles, the pure water in the first cleaning tank is replaced regularly, and the ethanol in the second cleaning tank is replaced regularly.

[0018] Compared with the prior art, the present invention automatically opens the cap of the chromatographic sample bottle through an opening mechanism, automatically opens the bottle body downward through a dumping mechanism, pours out the waste liquid in the bottle body, then automatically rinses the bottle body using a flushing mechanism, and finally ultrasonically cleans the bottle body in succession using an ultrasonic cleaning mechanism to ensure that the bottle body is clean. During the entire process, workers only need to put multiple chromatographic sample bottles into a vibrating plate at the same time, and after a period of time, the cleaned bottles can be recovered and simply dried. The cleaning efficiency is high, the time of the testers is short, and the normal detection function of the testers is not affected. In addition, since the entire cleaning process is controlled by a machine, there is no human error factor, the cleaning pass rate is high, and the increase in detection error after recycling is avoided. Therefore, the present invention has the advantages of high cleaning efficiency and high cleaning pass rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a top view of the opening mechanism.

[0021] Figure 3 It is a top view schematic diagram of the screening mechanism.

[0022] Figure 4 It is a left side view schematic diagram of the screening mechanism.

[0023] Figure 5 Schematic diagram of the slide from the front.

[0024] Figure 6 Schematic diagram of the top view of the cover opener.

[0025] Figure 7 It is a left side view of the cover opener.

[0026] Figure 8 It is a front view schematic diagram of the dumping mechanism.

[0027] Figure 9 It is a structural diagram of the unloading plate.

[0028] Figure 10 It is a structural diagram of the ultrasonic cleaning mechanism.

[0029] Figure 11 This is a connection diagram of the controller.

[0030] Figure 12 This is a schematic diagram of the bottle at the highest point of the discharge plate.

[0031] The symbols in the accompanying drawings are: 1-opening mechanism, 100-vibrating plate, 101-feeding channel, 102-slideway, 103-feeding notch, 104-screening mechanism, 105-opening device, 107-first through hole, 108-second through hole, 109-first cylinder, 110-first solenoid valve, 111-push plate, 112-rib, 113-first distance sensor, 114-third through hole, 115-fourth through hole, 116-rubber plate, 117-first baffle, 118-first bracket, 119-slide rail, 120-slide plate, 121-second cylinder, 122-second solenoid valve, 123-first motor, 124-rotating plate, 125-protrusion, 126-disengagement shaft, 127-limiting piece, 128-slider, 129-second distance sensor;

[0032] 2-dumping mechanism, 200-second bracket, 201-turntable, 202-second motor, 203-support sleeve, 204-avoidance gap, 205-second baffle, 206-flip gap, 207-groove;

[0033] 3-flushing mechanism, 300-rotary joint, 301-water pump, 302-pipe joint, 303-pipeline, 304-flushing needle, 305-third solenoid valve, 308-discharge plate, 309-inclined surface, 310-rod;

[0034] 4-ultrasonic cleaning mechanism, 400-first ultrasonic cleaning machine, 401-second ultrasonic cleaning machine, 402-first cleaning tank, 403-second cleaning tank, 404-first conveyor, 405-second conveyor, 406-container;

[0035] 5- Chromatographic sample bottle, 6- Controller. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings and examples, but they are not intended to limit the present invention.

[0037] Example. Chromatographic sample bottle automatic cleaning device, such as Figure 1 As shown, it includes an opening mechanism 1, a pouring mechanism 2 is provided at the discharge end of the opening mechanism 1, a flushing mechanism 3 is provided at the discharge end of the pouring mechanism 2, and an ultrasonic cleaning mechanism 4 is provided at the discharge end of the flushing mechanism 3. The opening mechanism 1, the pouring mechanism 2, the flushing mechanism 3 and the ultrasonic cleaning mechanism 4 are all connected to a controller 6. The controller 6 enables the opening mechanism 1, the pouring mechanism 2, the flushing mechanism 3 and the ultrasonic cleaning mechanism 4 to cooperate with each other to achieve continuous operation, that is, to achieve continuous cleaning of the chromatographic sample bottle 5.

[0038] like Figure 2 As shown, the opening mechanism 1 includes a vibrating disk 100 connected to the controller 6, and a feeding channel 101 with a spiral upward and U-shaped cross-section is provided on the vibrating disk 100. The feeding end of the feeding channel 101 is a trumpet mouth, which is convenient for the chromatographic sample bottle 5 to enter. The width of the rest of the feeding channel 101 matches the diameter of the chromatographic sample bottle 5, allowing only one chromatographic sample bottle 5 to pass through. An inclined slide 102 is provided on one side of the feeding channel 101, and the slide 102 has two inclination directions. The first inclination direction is in the length direction, and the end close to the feeding channel 101 is higher than the end away from the feeding channel 101. The second inclination direction is in the width direction, and the side close to the feeding channel 101 is higher than the side away from the feeding channel 101. The cross-section of the slide 102 is U-shaped, and the inner width of the slide 102 is slightly larger than the height of the chromatographic sample bottle 5. The slide 102 is provided with a feeding notch 103, a screening mechanism 104 and a lid opener 105 from the upper end to the lower end. The feed notch 103 is located on the side wall of the slideway 102 close to the feeding channel 101. The slideway 102 can be fixed on the outer side wall of the vibration plate 100.

[0039] like Figures 3 to 5As shown, the screening mechanism 104 includes a first through hole 107 and a second through hole 108 respectively located on both sides of the slide 102. The diameter of the first through hole 107 is larger than the diameter of the body and the cap of the chromatographic sample bottle 5, and the diameter of the second through hole 108 is smaller than the diameter of the body and the cap of the chromatographic sample bottle 5. It also includes a first cylinder 109 fixed on the outside of the slide 102. The first cylinder 109 is connected to the controller 6 through a first solenoid valve 110. A push plate 111 is provided at the telescopic end of the first cylinder 109. The push plate 111 is located on the axis of the second through hole 108 and on the bottom surface of the slide 102. A rib 112 is provided, the length of the rib 112 is parallel to the length of the slide 102, and the width of the rib 112 is smaller than the annular groove between the body and the bottle cap of the chromatographic sample bottle 5; the distance between the rib 112 and the inner wall of the lower side of the slide 102 is equal to or slightly larger than the distance between the bottom surface of the bottle body and the bottom surface of the bottle cap, and the rib 112 is located on the rear side of the screening mechanism 104; a first distance sensor 113 connected to the controller 6 is provided between the first through hole 107 and the second through hole 108, and the first distance sensor 113 is fixed to both sides of the slide 102 by a connecting rod. The first distance sensor 113 is located above the bottom surface of the slide 102.

[0040] like Figure 6 and Figure 7As shown, the cover opener 105 includes a third through hole 114 and a fourth through hole 115 respectively located on both sides of the slide 102. The diameter of the third through hole 114 is larger than the diameter of the bottle cap. A rubber plate 116 is provided in the fourth through hole 115. A first baffle 117 connected to the slide 102 is provided on the outer side of the rubber plate 116. The first baffle 117 provides support for the rubber plate 116. A first bracket 118 is provided at the outer end of the third through hole 114. The first bracket 118 is connected to the bottom of the slide 102. A slide rail 119 is provided on the first bracket 118. A slide plate 120 is provided above the slide rail 119. The slide rail 119 is connected to the slide plate 120 through a slider 128. A second cylinder 121 is provided on the first bracket 118. The second cylinder 121 is connected to the controller 6 through a second solenoid valve 122. The output end of the second cylinder 121 is connected to the slide plate 120. The slide plate 120 is provided with a connection to the controller 6, the first motor 123 is a stepping motor, and the output end of the first motor 123 is provided with a rotating plate 124, the diameter of the rotating plate 124 is smaller than the diameter of the third through hole 114, and at least two protrusions 125 are provided on the end surface of the rotating plate 124, and both sides of the rotating plate 124 are provided with a disengagement shaft 126 fixed to the first bracket 118; the cover opener 105 also includes a limiting piece 127, the limiting piece 127 is fixed on the inner wall of the upper side of the slide 102, the limiting piece 127 is located on the rear side of the third through hole 114 (i.e., the discharge side), and the thickness of the limiting piece 127 is the value of the height of the chromatographic sample bottle 5 minus the height of the bottle body; a second distance sensor 129 connected to the controller 6 is provided between the third through hole 114 and the fourth through hole 115, and the second distance sensor 129 is located above the bottom surface of the slide 102, and the second distance sensor 129 is fixed on the slide 102.

[0041] like Figure 8 As shown, the tipping mechanism 2 includes a second bracket 200, a turntable 201 is provided above the second bracket 200, a second motor 202 connected to the controller 6 is provided on the second bracket 200, the second motor 202 is a stepping motor, the output end of the second motor 202 is connected to the turntable 201, a support sleeve 203 is provided on the turntable 201, and a plurality of avoidance gaps 204 are provided on the top of the support sleeve 203.

[0042] A second baffle 205 is provided at the lower end of the slide 102, and a flip notch 206 is provided at the lower end of the slide 102. The flip notch 206 is located above the support sleeve 203, and a part of the flip notch 206 is located on the side wall on the upper side of the slide 102, and the other part of the flip notch 206 is located on the bottom surface of the slide 102. An arc-shaped groove 207 is provided on the inner bottom surface of the lower end of the slide 102, and one end of the groove 207 is connected to the flip notch 206.

[0043] The flushing mechanism 3 includes a rotary joint 300 located above the turntable 201. The rotating end of the rotary joint 300 is connected to tap water through a water pump 301, and the water pump 301 is connected to the controller 6. The fixed end of the rotary joint 300 is provided with a multi-head pipe joint 302. The pipe joint 302 is provided with a water inlet and multiple water outlets. The water inlet is connected to the rotary joint 300, and the water outlet is connected to a flushing needle 304 through a pipe 303. The pipe 303 is provided with a third solenoid valve 305 connected to the controller 6. The multiple flushing needles 304 are respectively located on the inner sides of the multiple avoidance gaps 204, and the outer periphery of the flushing needle 304 is provided with multiple water spraying ports;

[0044] A discharge plate 308 that is arc-shaped when viewed from above is provided above the turntable 201 , and a slope 309 is provided on the top of the discharge plate 308 . The outer peripheral surface of the discharge plate 308 is close to the inner side of the distribution circle of the flushing needle 304 . The discharge plate 308 fixes the second bracket 200 through a rod 310 that is bent multiple times.

[0045] The ultrasonic cleaning mechanism 4 includes a first ultrasonic cleaning machine 400 and a second ultrasonic cleaning machine 401. The first ultrasonic cleaning machine 400 is provided with a first cleaning tank 402, and the second ultrasonic cleaning machine 401 is provided with a second cleaning tank 403. A first conveyor 404 is provided in the first cleaning tank 402. The discharge end of the first conveyor 404 extends upwardly and obliquely to the top of the second cleaning tank 403. A second conveyor 405 is provided in the second cleaning tank 403. The feed end of the second conveyor 405 is located below the discharge end of the first conveyor 404. The discharge end of the second conveyor 405 extends upwardly and obliquely out of the second cleaning tank 403. A container 406 with a top opening is provided below the discharge end of the second conveyor 405. Both the ultrasonic cleaning machine and the conveyor are available for direct purchase.

[0046] The automated chromatographic sample bottle cleaning device uses the following method: When cleaning chromatographic sample bottles, pure water is poured into the first cleaning tank 402, and ethanol is poured into the second cleaning tank 403. The pure water in the first cleaning tank 402 is regularly replaced, and the ethanol in the second cleaning tank 403 is regularly replaced. For chromatographic sample bottles 5 containing special waste liquids, a more suitable cleaning solution can be used. If multiple cleaning solutions are required, the number of ultrasonic cleaners can be increased.

[0047] Working principle: Figure 2As shown, multiple chromatographic sample bottles 5 containing waste liquid are placed in a vibrating tray 100. The controller activates the vibrating tray 100, the second motor 202, the water pump 301, the first ultrasonic cleaning machine 400, the second ultrasonic cleaning machine 401, the first conveyor 404, and the second conveyor 405. The vibrating tray 100 causes the chromatographic sample bottles 5 to enter the feeding channel 101. The multiple chromatographic sample bottles 5 are arranged in sequence, spirally ascend along the feeding channel 101, and enter the upper end of the slideway 102 through the feed notch 103. At this time, the chromatographic sample bottles 5 have two states: in the first state, the bottle cap is at the bottom and the bottle body is at the top; in the other state, the bottle cap is at the top and the bottle body is at the bottom.

[0048] like Figure 3 and Figure 4 As shown, under the action of gravity, the chromatography sample bottle 5 rolls down the slide 102. For the chromatography sample bottle 5 with the bottle cap on, the annular groove between the bottle body and the bottle cap corresponds exactly to the rib 112, and the chromatographic sample bottle 5 continues to roll downward. The time it passes under the first distance sensor 113 is very short, and the signal generated by the first distance sensor 113 is very short (e.g., 0.2 seconds). The controller 6 receives this short signal and does not respond to any instructions. For the chromatography sample bottle 5 with the bottle cap on, the rib 112 presses against the bottle body, preventing the chromatography sample bottle 5 from rolling downward. The chromatography sample bottle 5 stays at the rib 112 for a longer time (e.g., more than 1 second). The first distance sensor 113 outputs a long signal to the controller 6. After receiving the long signal, the controller 6 quickly extends and retracts the first cylinder 109 via the first solenoid valve 110. When the first cylinder 109 extends, the push plate 111 causes the chromatography sample bottle 5 to leave the slide 102 through the first through hole 107 and fall back into the vibrating plate 100. Thus, it is ensured that all the chromatography sample bottles 5 passing through the ribs 112 have their caps on.

[0049] like Figure 6 and Figure 7As shown, the chromatographic sample bottle 5 that has left the rib 112 continues to roll down until it contacts the limit plate 127. The chromatographic sample bottle 5 is located below the second distance sensor 129, causing the second distance sensor 129 to generate a signal. After receiving the signal, the controller 6 first extends the second cylinder 121 through the second solenoid valve 122, and drives the first motor 123 to move toward the slide 102 through the slide 120. The rotating plate 124 contacts the bottle cap, and the protruding tip 125 penetrates into the bottle cap. Then the controller 6 starts the first motor 123, which drives the rotating plate 124 to rotate several times, so that the bottle cap is rotated. When the bottle cap is rotated out, due to the large friction between the bottle body and the rubber plate 116, the bottle body does not move. During the process of rotating the bottle cap out, the bottle cap exerts a reaction force, causing the second cylinder 121 to retract a certain distance. To ensure the smooth retraction of the second cylinder 121, the pressure of the second cylinder 121 cannot be too high. A low-pressure air source or a small-bore air cylinder can be used. Then the controller 6 contracts the second cylinder 121 through the second solenoid valve 122, causing the rotating plate 124 to pass between the two disengagement shafts 126. The bottle cap is blocked by the disengagement shafts 126 and separated from the rotating plate 124, and the bottle cap falls. Preferably, to prevent the bottle caps from piling up, a hole should be reserved on the first bracket 118 for the bottle caps to pass through when they fall. The remaining bottle bodies can pass through the lower side of the limit plate 127 and continue to roll down until they are blocked by the second baffle 205.

[0050] like Figure 8 and Figure 9 As shown, when the bottle is at the second baffle 205, the rear half of the bottle rests on the bottom plate of the slide 102, while the front half is supported by the support sleeve 203, preventing the bottle from tilting or falling. The second motor 202 rotates the turntable 201, which in turn drives the support sleeve 203. When the avoidance gap 204 enters under the bottle, the front of the bottle loses support, flips downward, and falls onto the flushing needle 304. As the turntable 201 rotates, multiple bottles are sequentially placed on the multiple flushing needles 304.

[0051] Based on the initial angle of each flushing needle 304 relative to the discharge end of the slide 102, the controller 6 opens the third solenoid valve 305 on the flushing needle 304 exiting from below the discharge end of the slide 102 and closes the third solenoid valve 305 on the flushing needle 304 about to reach the discharge plate 308. For a specific bottle on a flushing needle 304, assuming the flushing needle 304 needs to rotate A degrees upon reaching the discharge end of the slide 102 and B degrees upon reaching the discharge plate 308 at the zero angle of the second motor 202, within the 360° rotation cycle of the second motor 202, the third solenoid valve 305 on the flushing needle 304 opens after the second motor 202 rotates A+10° and closes after the second motor 202 rotates B-10°, ensuring that the bottle is flushed within the path from the discharge end of the slide 102 to the discharge plate 308. When the third solenoid valve 305 is opened, the water from the water pump passes through the rotary joint 300, the corresponding third solenoid valve 305, and the corresponding pipe 303 and enters the flushing needle 304, flushing the inner surface of the bottle body. The bottom surface of the bottle body is flushed by the splashing water. The turntable continues to rotate until it is close to the discharge plate 308, then stops flushing; the turntable 201 continues to rotate, and the lower end of the bottle body contacts the inclined surface 309, causing the bottle body to rise. Figure 12 As shown, since the discharge plate 308 is located inside the flushing needle 304, the bottles tilt outward during their ascent until they reach the highest point, flip out of the corresponding escape notch 204, and fall onto the first conveyor 404 of the first cleaning tank 402. As an optimization, it is preferable to provide a U-shaped, guide inclined plate on the first cleaning tank 402 to allow the bottles to fall more smoothly after leaving the escape notch 204.

[0052] After ultrasonically cleaning the bottles in first cleaning tank 402 with pure water, they are transported out of first cleaning tank 402 via first conveyor 404 and onto second conveyor 405 in second cleaning tank 403. After ultrasonically cleaning the bottles in second cleaning tank 403 with ethanol, they are transported via second conveyor 405 into container 406. The entire cleaning process is complete, and the cleaned bottles are dried and can be recycled. The conveyor is preferably a stainless steel mesh belt conveyor with an uneven conveying surface to prevent the bottles from rolling.

[0053] As for the connection harness between the third solenoid valve 305 and the controller 6 , since the third solenoid valve 305 rotates around the turntable 201 , a conductive slip ring needs to be provided on the connection harness to prevent it from getting tangled.

Claims

1. Automatic cleaning device for chromatographic sample bottles, characterized by: The invention comprises a cover opening mechanism (1), a dumping mechanism (2) is provided at the discharge end of the cover opening mechanism (1), a flushing mechanism (3) is provided at the discharge end of the dumping mechanism (2), an ultrasonic cleaning mechanism (4) is provided at the discharge end of the flushing mechanism (3), the cover opening mechanism (1), the dumping mechanism (2), the flushing mechanism (3) and the ultrasonic cleaning mechanism (4) are all connected to a controller (6), and the cover opening mechanism (1), the dumping mechanism (2), the flushing mechanism (3) and the ultrasonic cleaning mechanism (4) are coordinated with each other by the controller (6) to realize continuous operation; The lid opening mechanism (1) comprises a vibrating plate (100) connected to a controller (6), the vibrating plate (100) being provided with a feeding channel (101) which spirals upward and has a U-shaped cross section, an inclined slideway (102) being provided on one side of the feeding channel (101), the slideway (102) having a U-shaped cross section, and the slideway (102) being provided with a feeding notch (103), a screening mechanism (104) and a lid opener (105) in sequence from the upper end to the lower end; The cover opener (105) includes a third through hole (114) and a fourth through hole (115) respectively located on both sides of the slideway (102). A rubber plate (116) is provided in the fourth through hole (115). A first baffle (117) connected to the slideway (102) is provided on the outer side of the rubber plate (116). A first bracket (118) is provided at the outer end of the third through hole (114). A slide rail (119) is provided on the first bracket (118). A slide plate (120) is provided above the slide rail (119). The slide rail (119) is connected to the slide plate (120) through a slider (128). A second cylinder (121) is provided on the first bracket (118). The second cylinder (121) is connected to the controller (6) through a second solenoid valve (122). The output end of the second cylinder (121) is connected to the slide plate. (120), a first motor (123) connected to the controller (6) is provided on the slide (120), a rotating plate (124) is provided at the output end of the first motor (123), at least two protrusions (125) are provided on the end surface of the rotating plate (124), and a disengagement shaft (126) fixed to the first bracket (118) is provided on both sides of the rotating plate (124); the cover opener (105) also includes a limit plate (127), the limit plate (127) is fixed on the inner side wall of the slide (102), and the limit plate (127) is located at the rear side of the third through hole (114); a second distance sensor (129) connected to the controller (8) is provided between the third through hole (114) and the fourth through hole (115), and the second distance sensor (129) is located above the bottom surface of the slide (102).

2. The automatic cleaning device for chromatographic sample bottles according to claim 1, characterized in that: The screening mechanism (104) includes a first through hole (107) and a second through hole (108) respectively located on both sides of the slide (102), and also includes a first cylinder (109) fixed on the outside of the slide (102), the first cylinder (109) is connected to the controller (6) through a first solenoid valve (110), a push plate (111) is provided at the telescopic end of the first cylinder (109), and the push plate (111) is located on the axis of the second through hole (108), a rib (112) is provided on the bottom surface of the slide (102), and the rib (112) is located on the rear side of the screening mechanism (104); a first distance sensor (113) connected to the controller (6) is provided between the first through hole (107) and the second through hole (108), and the first distance sensor (113) is located above the bottom surface of the slide (102).

3. The automatic cleaning device for chromatographic sample bottles according to claim 1, characterized in that: The tipping mechanism (2) comprises a second bracket (200), a turntable (201) is provided above the second bracket (200), a second motor (202) connected to the controller (6) is provided on the second bracket (200), an output end of the second motor (202) is connected to the turntable (201), a support sleeve (203) is provided on the turntable (201), and a plurality of avoidance notches (204) are provided on the top of the support sleeve (203).

4. The automatic cleaning device for chromatographic sample bottles according to claim 3, characterized in that: A second baffle (205) is provided at the lower end of the slideway (102), a flip notch (206) is provided at the lower end of the slideway (102), and the flip notch (206) is located above the support sleeve (203). An arc-shaped groove (207) is provided on the inner bottom surface of the lower end of the slideway (102), and one end of the groove (207) is connected to the flip notch (206).

5. The automatic cleaning device for chromatographic sample bottles according to claim 3, characterized in that: The flushing mechanism (3) comprises a rotary joint (300) located above the turntable (201); the rotating end of the rotary joint (300) is connected to a water source via a water pump (301); the water pump (301) is connected to a controller (6); a fixed end of the rotary joint (300) is provided with a multi-head pipe joint (302); the pipe joint (302) is provided with a water inlet and a plurality of water outlets; the water inlet is connected to the rotary joint (300); the water outlet is connected to a flushing needle (304) via a pipe (303); a third solenoid valve (305) connected to the controller (6) is provided on the pipe (303); the plurality of flushing needles (304) are respectively located inside the plurality of avoidance gaps (204); and a plurality of water spraying ports are provided on the outer periphery of the flushing needle (304); A discharge plate (308) that is arc-shaped when viewed from above is provided above the turntable (201), a top of the discharge plate (308) is provided with an inclined surface (309), and an outer peripheral surface of the discharge plate (308) is close to the inner side of the distribution circle of the flushing needle (304).

6. The automatic cleaning device for chromatographic sample bottles according to claim 5, characterized in that: The ultrasonic cleaning mechanism (4) comprises a first ultrasonic cleaning machine (400) and a second ultrasonic cleaning machine (401), wherein the first ultrasonic cleaning machine (400) is provided with a first cleaning tank (402), and the second ultrasonic cleaning machine (401) is provided with a second cleaning tank (403), a first conveyor (404) is provided in the first cleaning tank (402), a discharge end of the first conveyor (404) extends obliquely upward to above the second cleaning tank (403), a second conveyor (405) is provided in the second cleaning tank (403), a feed end of the second conveyor (405) is located below the discharge end of the first conveyor (404), a discharge end of the second conveyor (405) extends obliquely upward out of the second cleaning tank (403), and a container (406) with a top opening is provided below the discharge end of the second conveyor (405).

7. The method for using the automatic cleaning device for chromatographic sample bottles according to claim 6, characterized in that: When cleaning the chromatographic sample bottle, pure water is poured into the first cleaning tank (402) and ethanol is poured into the second cleaning tank (403).

8. The method for using the automatic cleaning device for chromatographic sample bottles according to claim 7, characterized in that: The pure water in the first cleaning tank (402) is replaced regularly, and the ethanol in the second cleaning tank (403) is replaced regularly.

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