Multi-station barrel inner wall cleaning machine and multi-station barrel inner wall cleaning method

Abstract

The invention discloses a multi-station barrel inner wall cleaning machine which is characterized in that a plurality of barrel cups are arranged on a barrel cup mounting frame at intervals, and the barrel cups are used for limiting and fixing a barrel opening to be cleaned; the in-barrel washing assembly comprises a first driving air cylinder, a moving frame, a chain, a lifting frame and a plurality of washing pipelines arranged in the width direction of the conveying chain. A plurality of high-pressure sprayers are arranged on the flushing pipeline at intervals, the first driving air cylinder is horizontally arranged at the top of the rack, the moving frame and the rack are in sliding fit in the driving direction of the first driving air cylinder through first rollers, and the driving end of the first driving air cylinder is fixedly connected with the moving frame; a first chain wheel is further arranged at the top of the rack, one end of the chain is connected with the moving frame, and the other end of the chain is connected with the lifting frame after passing through the first chain wheel; the lifting frame is positioned between the upper and lower intervals of the conveying chain; and the flushing pipeline is fixedly connected with the lifting frame. According to the technical scheme, the reliability of long-term operation of equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of bottled water cleaning equipment technology, and in particular to a multi-station bottle inner wall cleaning machine and a multi-station bottle inner wall cleaning method. Background Technology

[0002] Multi-station barrel cleaning machines are typically used for cleaning reusable containers. During the cleaning process, an inverted and fixed barrel is sequentially sent to multiple stations via a conveyor system to complete the graded cleaning process. This achieves efficient, water-saving, and hygienic continuous operation and is a key piece of equipment for ensuring container cleanliness and meeting the batch processing needs of modern production lines.

[0003] In existing technologies, such as Chinese invention patent ZL201310291795.1, a barrel inner wall cleaning machine is disclosed, whose barrel rinsing component adopts a specific lifting drive structure. This structure includes a vertically arranged cylinder, chain, gear, and support plate. The reciprocating motion of the cylinder piston rod, transmitted through the chain and gear, is ultimately converted into the vertical lifting motion of the nozzle mounting plate, thereby enabling the nozzle to extend into or retract from the barrel opening. However, the chain, gears, and other transmission components of this drive structure, as well as the piston rod of the cylinder, are all directly located in the humid area inside the equipment. In actual operation, this area is inevitably affected by cleaning fluid drips, splashes, and moisture, causing the transmission components to be prone to rust and wear. The cylinder piston rod seal is also prone to failure due to corrosion, resulting in equipment jamming, incomplete lifting, and other malfunctions. This seriously affects the long-term operational stability and reliability of the equipment, increasing maintenance frequency and costs. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-station tank inner wall cleaning machine, which aims to improve the long-term reliability of the equipment.

[0005] To achieve this objective, the present invention adopts the following technical solution: A multi-station barrel inner wall cleaning machine includes a frame and a grading cleaning mechanism; The graded cleaning mechanism includes a conveyor chain assembly and an in-tank rinsing assembly; The conveyor chain assembly includes a conveyor chain and multiple bucket cup mounting brackets arranged along the width direction of the conveyor chain; multiple bucket cups are spaced apart on the bucket cup mounting brackets, and the bucket cups are used to limit and fix the opening of the bucket to be cleaned; The in-tank rinsing assembly includes a first drive cylinder, a moving frame, a chain, a lifting frame, and multiple rinsing pipes arranged along the width of the conveyor chain; multiple high-pressure nozzles are spaced apart on the rinsing pipes. The first drive cylinder is horizontally mounted on the top of the frame. The movable frame and the frame slide in the driving direction of the first drive cylinder via a first roller, and the driving end of the first drive cylinder is fixedly connected to the movable frame. A first sprocket is also provided on the top of the frame. One end of the chain is connected to the movable frame, and the other end of the chain is connected to the lifting frame after passing through the first sprocket. The lifting frame is located between the upper and lower intervals of the conveyor chain. The rinsing pipe is fixedly connected to the lifting frame. Driven by the first driving cylinder, the lifting frame can move vertically and cause the high-pressure nozzle on the rinsing pipe to extend into or detach from the inside of the bucket cup.

[0006] In one specific embodiment, the in-bucket rinsing assembly further includes a limiting rod and a second roller; the limiting rod is vertically fixed to the frame, and the second roller is mounted on the lifting frame. When the lifting frame moves in the vertical direction, the second roller slides in cooperation with the limiting rod to limit the horizontal movement of the lifting frame.

[0007] In one specific embodiment, the graded cleaning mechanism further includes a graded water collection component; The graded water collection assembly includes multiple water collection buckets, multiple water collection trays, and multiple anti-cross-flow plates; The water collection tank is connected to the flushing pipe and is used to provide cleaning water to the flushing pipe. The water collection tray is located below the conveyor chain and is fixedly connected to the frame to collect the cleaning water flowing back from the bucket opening. The water in the water collection tray can flow into the water collection bucket. The anti-cross-flow plate has a first inclined surface and a second inclined surface that are relatively inclined. The anti-cross-flow plate is located above two adjacent water collection trays and is fixed to the lifting frame.

[0008] In one specific embodiment, the bucket cup mounting brackets along the conveying chain alternately serve as a drip-drying station and a cleaning station. The drip-drying station is used to drip-dry the previous cleaning return water in the bucket, and the cleaning station is used for graded cleaning of the inner wall of the bucket.

[0009] In one specific embodiment, the conveyor chain includes a conveyor chain, a sprocket shaft, and a reduction motor; The conveyor chain engages with the sprocket disc of the sprocket shaft; the reduction motor is connected to the sprocket shaft and is used to drive the sprocket shaft to rotate. The sprocket shaft is also equipped with an indexing plate, on which multiple sensors are equally spaced. A sensor identification component is fixed on the frame. The sensors are signal-connected to the geared motor and are used to control the intermittent output of the geared motor.

[0010] In one specific embodiment, it also includes a bucket loading mechanism; The bucket loading mechanism includes a bucket frame, a bucket partition, a pad, a second drive cylinder, and a third drive cylinder; The upper bucket rack is rotatably connected to the frame. The second drive cylinder is fixed to the frame, and its drive end is connected to the upper bucket rack to drive it to rotate from a vertical to a horizontal position. The pad is fitted to the upper bucket rack. The third drive cylinder is fixed to the upper bucket rack, and its drive end is connected to the pad to adjust the distance between the pad and the upper bucket rack. The bucket partition is fixed to the upper bucket rack to limit the distance between buckets, so that the bucket opening corresponds to the center distance of the bucket cup.

[0011] In one specific embodiment, the bucket loading mechanism further includes a first bucket-turning assembly and a second bucket-turning assembly; When the upper bucket rack is in a vertical position, the first bucket-feeding assembly is used to feed the bucket into the upper bucket rack in a horizontal direction; when the upper bucket rack is in a horizontal position, the second bucket-feeding assembly is used to feed the bucket opening into the bucket cup in a horizontal direction.

[0012] In one specific embodiment, a bucket lowering mechanism is also included; The bucket lowering mechanism includes a third bucket-pulling assembly, a bucket lowering frame, a fourth drive cylinder, and a bucket-pushing assembly; The third bucket-pulling assembly is installed on the frame and rotates with the frame. The third bucket-pulling assembly is used to engage with the bucket shoulder so that the bucket mouth is disengaged from the bucket cup. The lower bucket rack is rotatably connected to the frame. The fourth drive cylinder is installed on the frame and its drive end is connected to the lower bucket rack. It is used to drive the lower bucket rack to rotate relative to the frame, receive the bucket that has detached from the bucket cup, and change the bucket from a horizontal state to a vertical state. The bucket pushing assembly is connected to the frame and is used to push the bucket, which is in a horizontal position on the bucket lowering frame, out of the bucket lowering frame to complete the bucket lowering action.

[0013] In one specific embodiment, the pusher assembly includes a fifth drive cylinder, a pair of stroke shafts, a pair of sliders, a V-shaped connector, and a pusher plate frame; The fifth drive cylinder is mounted on the frame, the stroke shaft is arranged parallel to the stroke direction of the fifth drive cylinder, and the slider is slidably engaged with the stroke shaft; both ends of the V-shaped connector are fixed to the slider, and the drive end of the fifth drive cylinder is fixedly connected to the middle of the V-shaped connector; the push plate frame is mounted above the slider, and the push plate frame is used for batch ejection of the upper barrels from the lower barrel rack.

[0014] The present invention also proposes a method for cleaning the inner wall of a multi-station tank, applied to the multi-station tank inner wall cleaning machine described above, the method comprising: The barrel passes sequentially through the following stations set along the conveyor chain: first drip-drying station, first return water washing station, first alkaline washing station, second alkaline washing station, second drip-drying station, second return water washing station, third drip-drying station, first chemical washing station, second chemical washing station, fourth drip-drying station, finished product washing station, and fifth drip-drying station; wherein, the first return water washing station, first alkaline washing station, second alkaline washing station, second return water washing station, first chemical washing station, second chemical washing station, and finished product washing station are cleaning stations arranged in sequence; the first drip-drying station, second drip-drying station, third drip-drying station, fourth drip-drying station, and fifth drip-drying station are drip-drying stations arranged in sequence; During cleaning at each of the aforementioned cleaning stations, the first drive cylinder drives the moving frame to move horizontally, and through the chain and the first sprocket, drives the lifting frame and rinsing pipe to rise, so that the high-pressure nozzles extend into the corresponding tanks at each station, and supply the corresponding cleaning media respectively: the first and second return water washing stations are supplied with primary return water from the primary return water tank; the first alkaline washing station is supplied with hot alkaline water from the first hot alkaline water tank; the second alkaline washing station is supplied with hot alkaline water from the second hot alkaline water tank; the first chemical washing station is supplied with disinfectant water from the first disinfection water tank; the second chemical washing station is supplied with disinfectant water from the second disinfection water tank; and the finished product water washing station is supplied with finished product water containing ozone. After cleaning is completed, the first drive cylinder reverses its movement, causing the high-pressure nozzles to exit the tank opening. At each of the aforementioned drip-drying stations, the bucket is held with its opening facing downwards for a set time to drip off the liquid from the previous cleaning process. The system collects and returns the backflow water generated during washing and drip drying through multiple water collection trays located below the conveyor chain, and then returns it to the corresponding water tanks: the backflow water from the first backflow washing station and the first drip drying station returns to the secondary backflow water tank via the first and second backflow water trays; the backflow water from the first alkaline washing station returns to the first hot alkaline water tank via the first alkaline washing tray; the backflow water from the second alkaline washing station and the second drip drying station returns to the second hot alkaline water tank via the second alkaline washing tray; the backflow water from the second backflow washing station and the third drip drying station returns to the secondary backflow water tank via the second and second backflow water trays; the backflow water from the first chemical washing station returns to the first disinfection water tank via the first disinfection water tray; the backflow water from the second chemical washing station and the fourth drip drying station returns to the second disinfection water tank via the second disinfection water tray; and the backflow water from the finished product washing station and the fifth drip drying station returns to the primary backflow water tank via the primary backflow water tray. Among them, multiple anti-water-crossing plates are installed on the lifting frame between adjacent cleaning media stations to prevent liquid splashing and cross-flow during the cleaning process.

[0015] Furthermore, the procedure includes, prior to the step of sequentially passing the bucket through the following stations arranged along the conveyor chain: The bucket to be cleaned is placed on the upper bucket rack of the bucket loading mechanism. The upper bucket rack is driven to rotate from a vertical state to a horizontal state by the second drive cylinder, so that the bucket is in a horizontal position. The third drive cylinder adjusts the pad plate, which, together with the bucket partition plate, positions the buckets so that the distance between the bucket openings corresponds to the center distance between the bucket cups on the bucket cup mounting rack on the conveyor chain. The second bucket-pushing assembly moves the positioned buckets horizontally so that the openings of each bucket are inserted into the bucket cups on the conveyor chain. Start the conveyor chain assembly, and drive the sprocket shaft to rotate intermittently through the geared motor, which in turn drives the conveyor chain and the bucket fixed in the bucket cup to move in a stepping manner. Furthermore, the method also includes: The third bucket assembly is rotated and engages with the bucket shoulder to push the bucket opening out of the bucket cup; the bucket falls onto the horizontal lower bucket frame, and the fourth drive cylinder drives the lower bucket frame to rotate, changing the bucket from a horizontal to a vertical position. The fifth drive cylinder of the bucket pusher assembly is activated, which drives the slider and push plate frame to move along the stroke axis through the V-shaped connector, pushing out the vertical buckets on the lower bucket frame in batches, thus completing the bucket unloading.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention relates to a multi-station tank inner wall cleaning machine and method. A first drive cylinder is horizontally positioned in the dry area at the top of the frame, with its drive end fixedly connected to a movable frame. The movable frame slides against the frame via a first roller. One end of a chain connects to the movable frame, and the other end, after passing over a first sprocket fixed to the top of the frame, connects to a lifting frame located below the conveyor chain. This reliably converts the horizontal linear motion of the first drive cylinder into the vertical lifting motion of the lifting frame and the rinsing pipes fixed thereon. This design positions the first drive cylinder, its chain, and the first sprocket at a high position away from the humid cleaning area below, effectively avoiding the problem of the drive components being exposed to a humid, corrosive liquid splash environment, as in existing technologies. This significantly improves the environmental adaptability and long-term operational reliability of the lifting drive system, and reduces the failure rate and maintenance costs caused by corrosion and jamming. Attached Figure Description

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

[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the multi-station tank inner wall cleaning machine of the present invention; Figure 2 for Figure 1 Enlarged view of part A in the image; Figure 3 for Figure 1 Enlarged view of part B in the image; Figure 4 for Figure 1 Enlarged view of section C in the image; Figure 5 for Figure 1 A structural diagram from another angle; Figure 6 for Figure 5 Enlarged view of part D in the image; Figure 7 for Figure 5 Enlarged view of part E in the image; Figure 8 for Figure 5 Enlarged view of part F in the image; Figure 9 for Figure 1 Another structural diagram from another angle; Figure 10 for Figure 9 Enlarged view of part G in the image; Figure 11 This is a schematic diagram of the cleaning process according to an embodiment of the present invention.

[0020] Illustrations: 11. Frame; 12. Grading and cleaning mechanism; 13. Conveyor chain assembly; 131. Conveyor chain; 132. Bucket / cup mounting bracket; 133. Bucket / cup; 14. In-bucket rinsing assembly; 141. First drive cylinder; 142. Moving frame; 143. Chain; 144. Lifting frame; 145. Rinsing pipe; 146. High-pressure nozzle; 147. First roller; 148. First sprocket; 21. Limiting rod; 22. Second roller; 31. Grading water collection assembly; 311. Water collection bucket; 312. Water collection tray; 313. Anti-cross-flow plate; 313a. First inclined surface; 313b. Second inclined surface; 51. Conveyor chain; 52. Sprocket shaft; 54. Indexing plate; 55. Sensor; 56. Sensor identification element; 61. Bucket loading mechanism; 611. Bucket loading frame; 612. Bucket partition; 6 13. Pad; 614. Second drive cylinder; 615. Third drive cylinder; 71. First barrel-pushing assembly; 72. Second barrel-pushing assembly; 81. Lower barrel mechanism; 811. Third barrel-pushing assembly; 812. Lower barrel frame; 813. Fourth drive cylinder; 814. Barrel-pushing assembly; 91. Fifth drive cylinder; 92. Stroke shaft; 93. Slider; 94. V-shaped connector; 95. Push plate frame; 101. First drip-drying station; 102. First return water washing station; 103. First alkaline washing station; 104. Second alkaline washing station; 105. Second drip-drying station; 106. Second return water washing station; 107. Third drip-drying station; 108. First chemical washing station; 109. Second chemical washing station; 1010. Fourth drip-drying station; 1011. Finished product water washing station; 1012. Fifth drip-drying station. Detailed Implementation

[0021] To make the technical objectives, features, and advantages of the present invention more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] This invention provides a multi-station tank inner wall cleaning machine.

[0025] Please see Figures 1 to 10 The multi-station barrel inner wall cleaning machine includes a frame 11 and a graded cleaning mechanism 12. The graded cleaning mechanism 12 includes a conveyor chain 131 assembly 13 and a barrel rinsing assembly 14; The conveyor chain 131 assembly 13 includes a conveyor chain 131 and a plurality of bucket cup 133 mounting brackets 132 arranged along the width direction of the conveyor chain 131; a plurality of bucket cups 133 are spaced apart on the bucket cup 133 mounting brackets 132, and the bucket cups 133 are used for limiting and fixing the opening of the bucket to be cleaned; The in-tank rinsing assembly 14 includes a first drive cylinder 141, a moving frame 142, a chain 143, a lifting frame 144, and multiple rinsing pipes 145 arranged along the width direction of the conveyor chain 131; multiple high-pressure nozzles 146 are spaced apart on the rinsing pipes 145. The first drive cylinder 141 is horizontally disposed on the top of the frame 11. The movable frame 142 is slidably engaged with the frame 11 via a first roller 147 in the driving direction of the first drive cylinder 141, and the driving end of the first drive cylinder 141 is fixedly connected to the movable frame 142. A first sprocket 148 is also disposed on the top of the frame 11. One end of the chain 143 is connected to the movable frame 142, and the other end of the chain 143 is connected to the lifting frame 144 after passing through the first sprocket 148. The lifting frame 144 is located between the upper and lower intervals of the conveyor chain 131. The flushing pipe 145 is fixedly connected to the lifting frame 144. Driven by the first drive cylinder 141, the lifting frame 144 can move vertically and drive the high-pressure nozzle 146 on the rinsing pipe 145 to extend into or detach from the barrel cup 133.

[0026] The multi-station inner wall cleaning machine of this invention horizontally positions the first drive cylinder 141 in the dry area at the top of the frame 11, with its drive end fixedly connected to the movable frame 142. Simultaneously, the movable frame 142 slides against the frame 11 via the first roller 147. One end of a chain 143 connects to the movable frame 142, and the other end passes over the first sprocket 148 fixed at the top of the frame 11 and connects to the lifting frame 144 located below the conveyor chain 131. This reliably converts the horizontal linear motion of the first drive cylinder 141 into the vertical lifting motion of the lifting frame 144 and the rinsing pipe 145 fixed thereon. This design positions the first drive cylinder 141, its chain 143, and the first sprocket 148 at a high position away from the humid cleaning area below, effectively avoiding the problem of the drive components being exposed to a humid, corrosive liquid splash environment in the prior art. This significantly improves the environmental adaptability and long-term operational reliability of the lifting drive system, and reduces the failure rate and maintenance costs caused by corrosion and jamming.

[0027] Please continue reading. Figure 1 and Figure 2 In one specific embodiment, the tub rinsing assembly 14 further includes a limiting rod 21 and a second roller 22; the limiting rod 21 is vertically fixed to the frame 11, and the second roller 22 is mounted on the lifting frame 144. When the lifting frame 144 moves in the vertical direction, the second roller 22 slides with the limiting rod 21 to limit the horizontal movement of the lifting frame 144.

[0028] Optionally, both the first roller 147 and the second roller 22 are I-shaped rollers. The limiting rod 21 is a solid or hollow round rod, square rod, or guide rail.

[0029] It is understood that the sliding contact includes both sliding friction contact and rolling friction contact. The guide mechanism composed of the limiting rod 21 and the second roller 22 effectively eliminates horizontal swaying or offset that may be caused by the transmission gap of the chain 143, load imbalance, or external vibration during the vertical lifting of the lifting frame 144 through the radial constraint of the limiting rod 21 on the second roller 22. This ensures that the rinsing pipe 145 and high-pressure nozzle 146 fixed on the lifting frame 144 can always maintain precise alignment with the bucket cup 133, improving the repeatability of the nozzle insertion into the bucket opening and the reliability of the cleaning operation. At the same time, this rolling or sliding guide method significantly reduces the frictional resistance and wear between the lifting frame 144 and the frame 11, reduces power consumption, and extends the service life of related moving parts.

[0030] Please see Figure 1 , Figure 5 and Figure 7In one specific embodiment, the graded cleaning mechanism 12 further includes a graded water collection component 31; The graded water collection assembly 31 includes multiple water collection buckets 311, multiple water collection trays 312, and multiple anti-cross-flow plates 313; The water collection tank 311 is connected to the flushing pipe 145 and is used to provide cleaning water to the flushing pipe 145. The water collection tray 312 is located below the conveyor chain 131 and is fixedly connected to the frame 11 to collect the cleaning water returning from the bucket opening. The water in the water collection tray 312 can flow into the water collection bucket 311. The anti-cross-flow plate 313 has a first inclined surface 313a and a second inclined surface 313b that are relatively inclined. The anti-cross-flow plate 313 is located above two adjacent water collection trays 312 and is fixed to the lifting frame 144.

[0031] Specifically, in this embodiment, the water collection bucket 311 can be an independent water tank, trough, or storage tank with inlet and outlet ports and a liquid level control device, used to hold different media such as clean water, alkaline solution, and disinfectant. The water collection tray 312 is an open container located below the conveyor chain 131, used to receive liquids dripping from or flowing back from the inverted bucket opening, and is usually designed as a shallow tray or trough with an inclined base. The anti-cross-flow plate 313 has a cross-section that is approximately V-shaped, herringbone-shaped, or similar folded plate shape. This plate can be made of bent metal plate, and its function is to guide and block splashed liquids from flowing into the corresponding water collection tray 312.

[0032] It is understood that, in this embodiment, by setting up multiple water collection trays 312 and guiding the return water to the corresponding water collection buckets 311, strict classification, collection, and recycling of cleaning media with different cleanliness levels or chemical properties (such as primary return water, alkaline solution, disinfectant, and finished water) are achieved, greatly saving water resources and chemical consumption and reducing operating costs. Secondly, by setting up anti-cross-flow plates 313 with double inclined surfaces on the lifting frame 144 between adjacent water collection trays 312, the key problem of water droplets splashing from high-pressure rinsing easily crossing station boundaries and causing cross-flow contamination of different cleaning media is effectively solved when multiple workstations are arranged adjacently. The anti-cross-flow plates 313 can effectively guide splashed droplets to themselves or fall back to the correct water collection tray 312, ensuring the purity of the graded recycling system, thereby ensuring that the concentration and cleanliness of the media in subsequent cleaning processes are not contaminated, and improving the stability of the cleaning process quality.

[0033] In a specific application station, the bucket cup 133 mounting bracket 132 along the conveying direction of the conveyor chain 131 alternately serves as a drip drying station and a cleaning station. The drip drying station is used to drip dry the previous cleaning return water in the bucket, and the cleaning station is used for graded cleaning of the inner wall of the bucket.

[0034] Understandably, by forcibly setting up a drip-drying station between the two cleaning stations, the tank has a dedicated static period after a high-pressure rinse to drain the large amount of residual backflow water inside. This effectively prevents residual liquid containing cleaning media from the previous process, such as alkali or disinfectant, from being carried into the next cleaning station, thereby significantly reducing the risk of unnecessary mixing and cross-contamination of cleaning media of different properties within the tank.

[0035] Please see Figure 5 and Figure 8 In one specific embodiment, the conveyor chain 131 includes a conveyor chain 131, a sprocket shaft 52, and a reduction motor; The 131 conveyor chains are engaged with the sprocket discs of the sprocket shaft 52; the reduction motor is connected to the sprocket shaft 52 and is used to drive the sprocket shaft 52 to rotate. The sprocket shaft 52 is also provided with an indexing plate 54, and multiple sensors 55 are equally spaced on the indexing plate 54. Sensor identification elements are fixed on the frame 11. The sensors 55 are signal connected to the geared motor and are used to control the intermittent output of the geared motor.

[0036] Specifically, in this embodiment, the indexing plate 54 and sensor 55 can precisely control the intermittent movement distance and stopping position of the conveyor chain 131, ensuring that each bucket / cup 133 mounting bracket 132 and its supported bucket can accurately stop directly below the preset cleaning or drip-drying station, achieving perfect alignment with the lifting rinsing pipe 145, thereby greatly improving the reliability and repeatability of the cleaning action. Furthermore, this intermittent control method, directly triggered by sensor signals, offers rapid response and a high degree of automation, enabling close and reliable coordination with the timing of other processes such as cleaning and drip-drying, fundamentally improving the overall operating efficiency and stability of the equipment.

[0037] Please see Figures 1 to 3 In one specific embodiment of the present invention, a bucket loading mechanism 61 is also included; The bucket loading mechanism 61 includes a bucket loading frame 611, a bucket partition 612, a pad 613, a second drive cylinder 614, and a third drive cylinder 615. The upper barrel rack 611 is rotatably connected to the frame 11. The second drive cylinder 614 is fixed to the frame 11, and the drive end of the second drive cylinder 614 is connected to the upper barrel rack 611 to drive the upper barrel rack 611 to rotate from a vertical state to a horizontal state. The pad 613 is fitted to the upper barrel rack 611. The third drive cylinder 615 is fixed to the upper barrel rack 611, and the drive end of the third drive cylinder 615 is connected to the pad 613 to adjust the distance between the pad 613 and the upper barrel rack 611. The barrel partition 612 is fixedly installed on the upper barrel rack 611 to limit the distance between barrels so that the barrel opening corresponds to the center distance of the barrel cup 133.

[0038] Specifically, the pad 613 and the third drive cylinder 615 are designed to ensure that the center distance between the barrel openings is strictly matched with the center distance between the barrel cups 133 on the conveyor chain 131 and can adapt to barrel shape differences within a certain range, thereby improving the versatility of the equipment.

[0039] Furthermore, the bucket loading mechanism 61 also includes a first bucket-turning assembly 71 and a second bucket-turning assembly 72; When the upper bucket rack 611 is in a vertical position, the first bucket-feeding assembly 71 is used to feed the bucket into the upper bucket rack 611 in a horizontal direction; when the upper bucket rack 611 is in a horizontal position, the second bucket-feeding assembly 72 is used to feed the bucket opening into the bucket cup 133 in a horizontal direction.

[0040] It is understood that both the first barrel-turning assembly 71 and the second barrel-turning assembly 72 are driven by cylinders mounted on the frame 11. Therefore, the structural form of the first barrel-turning assembly 71 and the second barrel-turning assembly 72 is not limited here. Their functions should be implemented by those skilled in the art using ordinary technical knowledge. Furthermore, the arrangement of the first barrel-turning assembly 71 and the second barrel-turning assembly 72 provides a crucial guarantee for the stable and reliable operation of subsequent cleaning processes by enhancing the automation level and operating efficiency of the multi-station cleaning machine.

[0041] Please see Figures 1 to 4 In one specific embodiment of the present invention, a bucket lowering mechanism 81 is also included; The bucket lowering mechanism 81 includes a third bucket-pulling assembly 811, a bucket lowering frame 812, a fourth drive cylinder 813, and a bucket-pushing assembly 814; The third bucket-pulling assembly 811 is installed on the frame 11 and rotates with the frame 11. The third bucket-pulling assembly 811 is used to cooperate with the bucket shoulder so that the bucket mouth is disengaged from the bucket cup 133. The lower bucket rack 812 is rotatably connected to the frame 11. The fourth drive cylinder 813 is installed on the frame 11. The drive end of the fourth drive cylinder 813 is connected to the lower bucket rack 812, which is used to drive the lower bucket rack 812 to rotate relative to the frame 11, and to receive the bucket that has detached from the bucket cup 133, and to change the bucket from a horizontal state to a vertical state. The bucket pushing assembly 814 is connected to the frame 11 and is used to push the bucket in a horizontal state on the bucket lowering frame 812 horizontally out of the bucket lowering frame 812 to complete the bucket lowering action.

[0042] Specifically, the third barrel-shifting assembly 811 mainly performs rotational motion. Therefore, the driving component of the third barrel-shifting assembly 811 can be either a servo motor or a linear drive cylinder with hinged ends. The design of the third barrel-shifting assembly 811 improves the stability and reliability of the barrel lowering action, avoids damage to the barrel body or barrel cup 133 that may be caused by forced pulling, ensures the continuity of the production cycle, and enhances the automation level and smooth operation of the entire cleaning machine system.

[0043] Please see Figure 9 and Figure 10 In one specific embodiment, the pusher assembly 814 includes a fifth drive cylinder 91, a pair of stroke shafts 92, a pair of sliders 93, a V-shaped connector 94, and a pusher frame 95; The fifth drive cylinder 91 is mounted on the frame 11, the stroke shaft 92 is arranged parallel to the stroke direction of the fifth drive cylinder 91, and the slider 93 is slidably engaged with the stroke shaft 92; both ends of the V-shaped connector 94 are fixed to the slider 93, and the drive end of the fifth drive cylinder 91 is fixedly connected to the middle of the V-shaped connector 94; the push plate frame 95 is mounted above the slider 93, and the push plate frame 95 is used for the batch ejection of the upper barrels of the lower barrel frame 812.

[0044] Understandably, the guiding mechanism between the pair of stroke shafts 92 and sliders 93 ensures that the bucket-pushing action is a strictly high-precision linear motion, avoiding deviation or jamming. The V-shaped connector 94 synchronously and equally transmits the single-point driving force of the fifth drive cylinder 91 to the two sliders 93, mechanically guaranteeing synchronous movement on both sides of the pusher frame 95. This eliminates the problems of tilting, asynchrony, or uneven force on the bucket that might occur due to single-point pushing or asymmetrical driving. This improves the reliability, smoothness, and automation of batch bucket unloading operations.

[0045] Please continue reading Figures 1 to 11 The present invention also proposes a method for cleaning the inner wall of a multi-station tank, applied to the multi-station tank inner wall cleaning machine described above, the method comprising: The barrel passes sequentially through the following stations set along the conveyor chain 131: first drip drying station 101, first return water washing station 102, first alkali washing station 103, second alkali washing station 104, second drip drying station 105, second return water washing station 106, third drip drying station 107, first chemical washing station 108, second chemical washing station 109, fourth drip drying station 1010, finished product water washing station 1011, and fifth drip drying station; wherein, The first return water washing station 102, the first alkaline washing station 103, the second alkaline washing station 104, the second return water washing station 106, the first chemical washing station 108, the second chemical washing station 109, and the finished product water washing station 1011 are cleaning stations arranged in sequence; the first drip drying station 101, the second drip drying station 105, the third drip drying station 107, the fourth drip drying station 1010, and the fifth drip drying station are drip drying stations arranged in sequence. During cleaning at each of the aforementioned cleaning stations, the first drive cylinder 141 drives the moving frame 142 to move horizontally, and through the chain 143 and the first sprocket 148, drives the lifting frame 144 and the rinsing pipe 145 to rise, so that the high-pressure nozzle 146 extends into the corresponding station's tank and supplies the corresponding cleaning media respectively: the first return water washing station 102 and the second return water washing station 106 are supplied with primary return water from the primary return water tank; the first alkaline washing station 103 is supplied with hot alkaline water from the first hot alkaline water tank; the second alkaline washing station 104 is supplied with hot alkaline water from the second hot alkaline water tank; the first chemical washing station 108 is supplied with disinfectant water from the first disinfection water tank; the second chemical washing station 109 is supplied with disinfectant water from the second disinfection water tank; and the finished product water washing station 1011 is supplied with finished product water containing ozone. After cleaning is completed, the first drive cylinder 141 reverses its movement, driving the high-pressure nozzle 146 to exit the tank opening. At each of the aforementioned drip-drying stations, the bucket is held with its opening facing downwards for a set time to drip off the liquid from the previous cleaning process. The reflux water generated during washing and drip drying is collected by multiple water collection trays 312 located below the conveyor chain 131 and returned to the corresponding water tanks: the reflux water from the first reflux washing station 102 and the first drip drying station 101 is returned to the secondary reflux water tank via the first and second reflux water trays; the reflux water from the first alkali washing station 103 is returned to the first hot alkali water tank via the first alkali washing tray; and the reflux water from the second alkali washing station 104 and the second drip drying station 105 is returned to the second alkali washing tank via the second alkali washing tray. The hot alkaline water tank; the return water from the second return water washing station 106 and the third drip drying station 107 flows back to the secondary return water tank via the second secondary return water tray; the return water from the first chemical washing station 108 flows back to the first disinfection water tank via the first disinfection water tray; the return water from the second chemical washing station 109 and the fourth drip drying station 1010 flows back to the second disinfection water tank via the second disinfection water tray; the return water from the finished product washing station 1011 and the fifth drip drying station flows back to the primary return water tank via the primary return water tray; Among them, multiple anti-water-crossing plates 313 are installed on the lifting frame 144 between adjacent cleaning media stations to prevent liquid splashing and cross-flow during the cleaning process.

[0046] It is understood that the cleaning method of this embodiment, by arranging multiple drip-drying stations in a specific order and multiple cleaning stations using different cleaning media alternately, and coordinating with synchronously executed graded water collection and recovery and anti-cross-contamination measures, achieves the following comprehensive beneficial effects: First, this method constructs a complete, precise, and closed multi-stage cleaning process, which forcibly sets a drip-drying step after each active cleaning step, effectively cutting off the possibility of cross-contamination and pollution between different cleaning media (such as alkaline solution, disinfectant, and finished water) in the tank, and ensuring the purity of each cleaning stage in terms of time sequence.

[0047] Secondly, this method classifies and guides the return water generated from each stage of cleaning and drip drying back to the original storage tank through independent water collection channels, realizing refined management and recycling of the cleaning medium, and greatly saving water and chemical consumption.

[0048] More importantly, this method, through the dynamic physical isolation of the anti-cross-contamination plate 313, spatially eliminates cross-contamination caused by liquid splashing during high-pressure rinsing at adjacent workstations, ensuring the purity of the recovered media at each stage. This method works closely with the structure of the cleaning machine equipment of this invention, not only fully leveraging the high efficiency advantages of multi-station automated cleaning machines, but also fundamentally solving the core problems of unstable cleaning quality, serious media waste, and easy interference between different cleaning stages in existing technologies. Thus, under the premise of efficient and continuous production, it significantly improves the reliability and consistency of the final cleaning quality.

[0049] Finally, at the equipment level, the fundamental problems pointed out in the background art—such as the high failure rate and frequent maintenance caused by the corrosion of drive components exposed to a humid working environment in existing cleaning machines—are solved. The first drive cylinder 141 of this cleaning machine is horizontally positioned in the dry area at the top of the frame 11 and is driven by a chain 143 and a first sprocket 148. This keeps the core power and transmission system away from cleaning fluid splashes, thereby ensuring the long-term reliable and stable operation of the lifting motion during the cleaning process and providing a durable guarantee for the continuous execution of the method.

[0050] Furthermore, prior to the step of sequentially passing the barrel through the following stations arranged along the conveyor chain 131, the method further includes: The bucket to be cleaned is placed on the upper bucket frame 611 of the upper bucket mechanism 61, and the upper bucket frame 611 is driven to rotate from a vertical state to a horizontal state by the second drive cylinder 614, so that the bucket is in a horizontal position. The third drive cylinder 615 adjusts the pad 613, which, together with the barrel partition 612, positions the barrels so that the distance between the barrel openings corresponds to the center distance of the barrel cups 133 on the barrel cup 133 mounting bracket 132 on the conveyor chain 131. The second bucket-pushing assembly 72 pushes the positioned buckets horizontally so that the openings of each bucket are inserted into the bucket cups 133 on the conveyor chain 131. Start the conveyor chain 131 assembly 13, and drive the sprocket shaft 52 to rotate intermittently through the geared motor, thereby driving the conveyor chain 131 and the bucket fixed in the bucket cup 133 to move in a stepping manner; Furthermore, the method also includes: The third bucket assembly 811 is rotated and engages with the bucket shoulder to push the bucket mouth out of the bucket cup 133; the bucket falls onto the horizontal lower bucket frame 812, and the fourth drive cylinder 813 drives the lower bucket frame 812 to rotate, so that the bucket changes from a horizontal state to a vertical state. The fifth drive cylinder 91 of the bucket pushing assembly 814 is activated, which drives the slider 93 and the push plate frame 95 to move along the stroke axis 92 through the V-shaped connector 94, pushing out the vertical buckets on the lower bucket frame 812 in batches, thus completing the bucket lowering.

[0051] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-station tank inner wall cleaning machine, characterized in that, Includes a frame (11) and a graded cleaning mechanism (12); The graded cleaning mechanism (12) includes a conveyor chain assembly (13) and an in-tank rinsing assembly (14). The conveyor chain assembly (13) includes a conveyor chain (131) and a plurality of bucket cup mounting brackets (132) arranged along the width direction of the conveyor chain; a plurality of bucket cups (133) are spaced apart on the bucket cup mounting brackets (132), and the bucket cups (133) are used for limiting and fixing the opening of the bucket to be cleaned; The in-tank rinsing assembly (14) includes a first drive cylinder (141), a moving frame (142), a chain (143), a lifting frame (144), and multiple rinsing pipes (145) arranged along the width of the conveyor chain; multiple high-pressure nozzles (146) are spaced apart on the rinsing pipes (145). The first drive cylinder (141) is horizontally disposed on the top of the frame (11). The movable frame (142) and the frame (11) are slidably engaged in the driving direction of the first drive cylinder (141) via the first roller (147), and the driving end of the first drive cylinder (141) is fixedly connected to the movable frame (142). The top of the frame (11) is also provided with a first sprocket (148). One end of the chain (143) is connected to the movable frame (142), and the other end of the chain (143) is connected to the lifting frame (144) after passing through the first sprocket (148). The lifting frame (144) is located between the upper and lower intervals of the conveyor chain (131). The flushing pipe (145) is fixedly connected to the lifting frame (144). Driven by the first driving cylinder (141), the lifting frame (144) can move vertically and drive the high-pressure nozzle (146) on the flushing pipe (145) to extend into or detach from the barrel cup (133).

2. The multi-station tank inner wall cleaning machine according to claim 1, characterized in that, The in-bucket rinsing assembly (14) also includes a limiting rod (21) and a second roller (22); the limiting rod (21) is vertically fixed to the frame (11), and the second roller (22) is mounted on the lifting frame (144). When the lifting frame (144) moves in the vertical direction, the second roller (22) slides with the limiting rod (21) to limit the horizontal movement of the lifting frame (144).

3. The multi-station tank inner wall cleaning machine according to claim 1, characterized in that, The graded cleaning mechanism (12) also includes a graded water collection component (31). The graded water collection assembly (31) includes multiple water collection buckets (311), multiple water collection trays (312), and multiple anti-cross-flow plates (313). The water collection tank (311) is connected to the flushing pipe (145) and is used to provide cleaning water to the flushing pipe (145); The water collection tray (312) is located below the conveyor chain (131) and is fixedly connected to the frame (11) to collect the cleaning water flowing back from the bucket opening, and the water in the water collection tray (312) can flow into the water collection bucket (311); the anti-cross-flow plate (313) has a first inclined surface (313a) and a second inclined surface (313b) that are relatively inclined, and the anti-cross-flow plate (313) is located above two adjacent water collection trays (312) and is fixed to the lifting frame (144).

4. The multi-station tank inner wall cleaning machine according to claim 1, characterized in that, The conveyor chain (131) alternately uses the bucket cup mounting frame (132) along the conveying direction as a drip drying station and a cleaning station. The drip drying station is used to drip dry the previous cleaning return water in the bucket, and the cleaning station is used for graded cleaning of the inner wall of the bucket.

5. The multi-station tank inner wall cleaning machine according to claim 1, characterized in that, The conveyor chain (131) includes a conveyor chain (51), a sprocket shaft (52), and a reduction motor; The conveyor chain (51) is engaged with the sprocket disc of the sprocket shaft (52); the geared motor is connected to the sprocket shaft (52) and is used to drive the sprocket shaft (52) to rotate; The sprocket shaft (52) is also provided with an indexing plate (54), and multiple sensors (55) are equally spaced on the indexing plate (54). A sensor identification component (56) is fixed on the frame (11). The sensor (55) is connected to the geared motor for signal control of the intermittent output of the geared motor.

6. The multi-station tank inner wall cleaning machine according to claims 1 to 5, characterized in that, It also includes a bucket loading mechanism (61); The bucket loading mechanism (61) includes a bucket loading frame (611), a bucket partition (612), a pad (613), a second drive cylinder (614), and a third drive cylinder (615). The upper bucket rack (611) is rotatably connected to the frame (11). The second drive cylinder (614) is fixed to the frame (11). The drive end of the second drive cylinder (614) is connected to the upper bucket rack (611) and is used to drive the upper bucket rack (611) to rotate from a vertical state to a horizontal state. The pad (613) is fitted to the upper bucket rack (611). The third drive cylinder (615) is fixed to the upper bucket rack (611). The drive end of the third drive cylinder (615) is connected to the pad (613) and is used to adjust the distance between the pad (613) and the upper bucket rack (611). The bucket partition (612) is fixedly installed on the upper bucket rack (611) and is used to limit the distance between buckets so that the bucket opening corresponds to the center distance of the bucket cup (133).

7. The multi-station tank inner wall cleaning machine according to claim 6, characterized in that, The bucket loading mechanism (61) also includes a first bucket-pulling assembly (71) and a second bucket-pulling assembly (72). When the upper bucket rack (611) is in a vertical position, the first bucket-pushing assembly (71) is used to feed the bucket into the upper bucket rack (611) in a horizontal direction; when the upper bucket rack (611) is in a horizontal position, the second bucket-pushing assembly (72) is used to feed the bucket opening into the bucket cup (133) in a horizontal direction.

8. The multi-station tank inner wall cleaning machine according to claim 6, characterized in that, It also includes a bucket lowering mechanism (81); The bucket lowering mechanism (81) includes a third bucket-pulling assembly (811), a bucket lowering frame (812), a fourth drive cylinder (813), and a bucket-pushing assembly (814). The third bucket-pulling assembly (811) is mounted on the frame (11) and rotates with the frame (11). The third bucket-pulling assembly (811) is used to engage with the bucket shoulder so that the bucket mouth is disengaged from the bucket cup (133). The lower bucket rack (812) is rotatably connected to the frame (11). The fourth drive cylinder (813) is installed on the frame (11). The drive end of the fourth drive cylinder (813) is connected to the lower bucket rack (812) to drive the lower bucket rack (812) to rotate relative to the frame (11), and to receive the bucket that has detached from the bucket cup (133) and change the bucket from a horizontal state to a vertical state. The bucket pushing assembly (814) is connected to the frame (11) and is used to push the bucket in a horizontal state on the bucket lowering frame (812) horizontally out of the bucket lowering frame (812) to complete the bucket lowering action.

9. The multi-station tank inner wall cleaning machine according to claim 8, characterized in that, The pusher assembly (814) includes a fifth drive cylinder (91), a pair of stroke shafts (92), a pair of sliders (93), a V-shaped connector (94), and a pusher frame (95). The fifth drive cylinder (91) is mounted on the frame (11), the stroke shaft (92) is set parallel to the stroke direction of the fifth drive cylinder (91), and the slider (93) is slidably engaged with the stroke shaft (92); the two ends of the V-shaped connector (94) are respectively fixed to the slider (93), and the drive end of the fifth drive cylinder (91) is fixedly connected to the middle part of the V-shaped connector (94); the push plate frame (95) is mounted above the slider (93), and the push plate frame (95) is used for the batch ejection of the upper barrels on the lower barrel frame (812).

10. A method for cleaning the inner wall of a multi-station tank, applied to the multi-station tank inner wall cleaning machine as described in any one of claims 1 to 9, characterized in that, The method includes: The barrel is sequentially passed through the following stations set along the conveyor chain: First drip drying station (101), First return water washing station (102), First alkaline washing station (103), Second alkaline washing station (104), Second drip drying station (105), Second return water washing station (106), Third drip drying station (107), First chemical washing station (108), Second chemical washing station (109), Fourth drip drying station (1010), Finished product water washing station (1011), and Fifth drip drying station (1012); wherein, The first water washing station (102), the first alkaline washing station (103), the second alkaline washing station (104), the second water washing station (106), the first chemical washing station (108), the second chemical washing station (109), and the finished product water washing station (1011) are cleaning stations arranged in sequence; the first drip drying station (101), the second drip drying station (105), the third drip drying station (107), the fourth drip drying station (1010), and the fifth drip drying station (1012) are drip drying stations arranged in sequence; During cleaning at each of the aforementioned cleaning stations, the first drive cylinder (141) drives the moving frame (142) to move horizontally, and through the chain (143) and the first sprocket (148), drives the lifting frame (144) and the rinsing pipe (145) to rise, so that the high-pressure nozzle (146) extends into the corresponding station's tank and supplies the corresponding cleaning medium: the first return water washing station (102) and the second return water washing station (106) are supplied with primary return water from the primary return water tank; the first alkaline washing station ( 103) Hot alkaline water is supplied from the first hot alkaline water tank; the second alkaline washing station (104) is supplied with hot alkaline water from the second hot alkaline water tank; the first chemical washing station (108) is supplied with disinfectant water from the first disinfection water tank; the second chemical washing station (109) is supplied with disinfectant water from the second disinfection water tank; the finished product washing station (1011) is supplied with finished product water containing ozone; after the cleaning is completed, the first drive cylinder (141) reverses its action, driving the high-pressure nozzle (146) to exit the barrel opening; At each of the aforementioned drip-drying stations, the bucket is held with its opening facing downwards for a set time to drip off the liquid from the previous cleaning process. The reflux water generated during washing and drip drying is collected by multiple water collection trays (312) located below the conveyor chain (131) and returned to the corresponding water tanks: the reflux water from the first reflux washing station (102) and the first drip drying station (101) is returned to the secondary reflux water tank via the first and second reflux water trays; the reflux water from the first alkali washing station (103) is returned to the first hot alkali water tank via the first alkali washing tray; and the reflux water from the second alkali washing station (104) and the second drip drying station (105) is returned to the second hot alkali water tank via the second alkali washing tray. Water tank; the return water from the second return water washing station (106) and the third drip drying station (107) flows back to the secondary return water tank via the second secondary return water tray; the return water from the first chemical washing station (108) flows back to the first disinfection water tank via the first disinfection water tray; the return water from the second chemical washing station (109) and the fourth drip drying station (1010) flows back to the second disinfection water tank via the second disinfection water tray; the return water from the finished product washing station (1011) and the fifth drip drying station (1012) flows back to the primary return water tank via the primary return water tray; Among them, multiple anti-water-crossing plates (313) are set on the lifting frame (144) between adjacent cleaning media stations to prevent liquid splashing and cross-flow during the cleaning process.

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