A plastic drum cleaning apparatus

Abstract

The utility model belongs to the technical field of cleaning equipment, concretely relates to a plastic bucket cleaning equipment, including main frame, is fixedly installed with the cleaning tank on the main frame, is provided with rotatable clamping tool in the cleaning tank, is used for clamping plastic bucket, is provided with outer cleaning mechanism in the cleaning tank, is used for carrying out the cleaning to the outer surface of plastic bucket, is connected with inner cleaning mechanism on the clamping tool, is used for carrying out the cleaning to the inside of plastic bucket. The utility model provides a plastic bucket cleaning equipment, is washed to the plastic bucket in rotation through setting up outer cleaning mechanism, and the high pressure water flow formed by multiple outer spray heads on the spray pipe can effectively peel off label and stubborn dirt and other attachments, and the appearance damage to the plastic bucket is smaller. Through setting up inner cleaning mechanism, the inner spray head is lifted together with the lower clamping part and is aligned with the plastic bucket mouth, and the residual of the inner wall is removed by the impact force of high pressure water flow.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning equipment technology, specifically relating to a plastic bucket cleaning device. Background Technology

[0002] Plastic drums, due to their excellent properties such as corrosion resistance, impact resistance, good sealing performance, light weight, and relatively low cost, have become an indispensable packaging medium in modern industrial logistics and warehousing. They are widely used to hold various products such as chemical raw materials, food additives, and lubricants. High-quality plastic drums are designed for long service life, have a robust structure, and possess extremely high reusability. The recycling and reuse of plastic drums not only significantly reduces packaging costs, saving companies substantial expenses, but also effectively reduces the generation of plastic waste, resulting in significant economic and environmental benefits.

[0003] To ensure the safe and compliant reuse of plastic containers, a crucial step is thorough and efficient cleaning. After use, the inner walls of plastic containers retain residual substances, while the outer walls easily accumulate dust, oil, and often have labels that are difficult to remove. Incomplete cleaning can lead to cross-contamination between different batches of products, posing a serious threat to product purity in the chemical industry and hygiene and safety in the food and pharmaceutical industries. Furthermore, stains and old labels on the exterior also affect the product's appearance.

[0004] Currently, the cleaning methods for plastic buckets are mainly divided into two categories: manual cleaning and mechanical cleaning. Manual cleaning relies on operators using tools such as brushes and high-pressure water guns, which is not only labor-intensive and inefficient, but also cannot meet the needs of large-scale recycling. Mechanical cleaning methods mostly use drum-type cleaning machines, where rollers drive brushes to clean the inside and outside of the plastic buckets. This method easily causes scratches on the surface of the bucket, reducing its service life, and is ineffective at cleaning stubborn labels on the inner and outer walls, leaving many blind spots. More importantly, for plastic buckets with small openings, the rollers cannot reach inside, making it less suitable for use.

[0005] Therefore, there is an urgent need to develop a specialized device that is highly mechanized, causes minimal damage to plastic buckets, and can efficiently clean the inner and outer walls of plastic buckets in order to solve the aforementioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a plastic bucket cleaning device to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows: A plastic bucket cleaning device includes a main frame, a cleaning tank fixedly installed on the main frame, a rotatable clamping fixture inside the cleaning tank for clamping the plastic bucket, an external cleaning mechanism inside the cleaning tank for cleaning the outer surface of the plastic bucket, and an internal cleaning mechanism connected to the clamping fixture for cleaning the inside of the plastic bucket.

[0008] As a further improvement, the external cleaning mechanism includes a spray pipe connected to the main frame, and multiple external nozzles are fixed on the outer wall of the spray pipe, with the spray direction of the external nozzles facing the plastic bucket.

[0009] As a further improvement, an adjustment plate is fixedly installed on the main frame, and a sliding groove is provided through the adjustment plate, with the top of the spray pipe slidingly engaged with the sliding groove.

[0010] As a further improvement, the clamping fixture includes an upper clamping part and a lower clamping part. The upper clamping part is formed by bending both ends of the strip plate downwards. One end of the upper clamping part is used to abut against the side wall of the plastic bucket, and the other end is used to abut against the bottom wall of the plastic bucket. A rotary drive motor is fixedly mounted on the main frame. The rotary drive motor is connected to a reducer, and the output end of the reducer is fixedly connected to the upper clamping part.

[0011] As a further improvement, the lower clamping part includes a liftable base plate with both ends bent upwards. One end of the base plate abuts against the side wall of the plastic bucket, and the other end abuts against the top of the plastic bucket. The cleaning tank is connected to a vertically sliding support rod. The top of the support rod extends upward through the bottom plate and is rotatably connected to the bottom plate. The top of the support rod corresponds to the opening of the plastic bucket, and its bottom extends downward through the bottom wall of the cleaning tank and is slidably and sealingly connected to the bottom wall of the cleaning tank.

[0012] As a further improvement, the internal cleaning mechanism includes an internal nozzle fixedly mounted on the base plate, a water outlet channel inside the support rod, the internal nozzle communicating with the water outlet channel, and a lifting drive mechanism connected to the bottom end of the support rod.

[0013] As a further improvement, the lifting drive mechanism is a lifting cylinder that is fixedly connected to the main frame, and the output end of the lifting cylinder is fixedly connected to the bottom of the support rod.

[0014] As a further improvement, a drive chain is rotatably installed on the bottom wall of the cleaning tank, and multiple positioning fixtures for placing plastic buckets are fixedly installed on the drive chain. The bottom of the positioning fixtures is provided with a channel for the lower clamping part to pass through.

[0015] Due to the adoption of the above technical solution, the beneficial technical effects of this utility model are as follows: This utility model provides a plastic bucket cleaning device. By setting an external cleaning mechanism, the high-pressure water flow formed by multiple external nozzles on the spray pipe washes the rotating plastic bucket, which can effectively remove labels and stubborn stains and other attachments, and causes less damage to the appearance of the plastic bucket.

[0016] By setting up an internal cleaning mechanism, the internal nozzle rises and falls together with the lower clamping part and is aligned with the opening of the plastic bucket. The impact force of the high-pressure water flow is used to remove the residue on the inner wall.

[0017] By setting an adjustment plate, the spray pipe can adjust the spray distance and angle according to the size of the bucket and the degree of soiling through the cooperation of the sliding groove and the adjustment plate, making it compatible with plastic buckets of different sizes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 yes Figure 1 A schematic diagram of the structure of part A; Figure 3 This is a schematic diagram of the internal cleaning mechanism and the external cleaning mechanism of this utility model; Figure 4 This is a schematic diagram of the clamping fixture of this utility model.

[0019] The components are: 1-Main frame, 2-Cleaning tank, 3-Clamping fixture, 301-Upper clamping part, 302-Lower clamping part, 303-Base plate, 304-Support rod, 305-Rotary drive motor, 306-Reducer, 4-External cleaning mechanism, 401-Spray pipe, 402-External nozzle, 403-Adjusting plate, 404-Sliding groove, 5-Internal cleaning mechanism, 501-Internal nozzle, 6-Lifting drive mechanism, 601-Lifting cylinder, 7-Plastic bucket. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments and accompanying drawings. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual physical objects, and should not be construed as limiting the scope of this application. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0021] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] like Figure 1-4 As shown, a plastic bucket cleaning device includes a main frame 1, a cleaning tank 2 fixedly installed on the main frame 1, a rotatable clamping fixture 3 provided in the cleaning tank 2 for clamping a plastic bucket 7, an external cleaning mechanism 4 provided in the cleaning tank 2 for cleaning the outer surface of the plastic bucket 7, and an internal cleaning mechanism 5 connected to the clamping fixture 3 for cleaning the inside of the plastic bucket 7.

[0023] In this embodiment, during use, the clamping fixture 3 clamps and fixes the plastic bucket 7 in a specific posture, and then the clamping fixture 3 begins to rotate the plastic bucket 7. Simultaneously, the external cleaning mechanism 4 starts, spraying or brushing the outer surface of the plastic bucket 7; the internal cleaning mechanism 5, connected to the clamping fixture 3, also starts synchronously, rinsing the inner wall of the plastic bucket 7. After the entire cleaning process continues for a preset time, the internal cleaning mechanism 5 and the external cleaning mechanism 4 stop working, the clamping fixture 3 stops rotating and releases the cleaned plastic bucket 7, and the next cleaning operation can then begin. This effectively solves the problem of cleaning the inside of plastic buckets with small opening diameters.

[0024] In this embodiment, the external cleaning mechanism 4 includes a spray pipe 401 connected to the main frame 1. Multiple external nozzles 402 are fixedly provided on the outer wall of the spray pipe 401, and the spraying direction of the external nozzles 402 is towards the plastic bucket 7.

[0025] The spray pipe 401, connected to an external high-pressure water pump and other water supply equipment, causes water to be sprayed at high speed from multiple external nozzles 402 simultaneously, forming a dense water curtain. In practical applications, to effectively remove surface deposits of different properties, the external nozzles 402 are configured in zones and pressure stages. Typically, 4-5 external nozzles 402 are connected to a plunger pump that provides high pressure, supplying 8-10 MPa of water pressure. These nozzles are concentrated on the label area of ​​the plastic bucket 7, using the high-speed jets to forcefully impact and peel off labels with strong adhesion. The remaining nozzles 402 are connected to a multi-stage pump, which provides approximately 1 MPa of water pressure. This water flow covers the entire body of the plastic bucket 7, primarily responsible for removing common stains with weak adhesion, such as oil, and assisting in rinsing away peeled label fragments. This zoned pressurized cleaning method ensures thorough removal of various stains while optimizing cleaning efficiency and energy consumption.

[0026] In this embodiment, an adjustment plate 403 is fixedly installed on the main frame 1, and a sliding groove 404 is provided through the adjustment plate 403. The top of the spray pipe 401 is slidably engaged with the sliding groove 404.

[0027] The adjusting plate 403 provides a support point for the installation of the spray pipe 401, while the sliding groove 404 provides a continuously adjustable movement path for the installation point of the spray pipe 401, thereby changing the relative distance and angle between the spray pipe 401 and all its external nozzles 402 and the plastic bucket 7. Specifically, the upper end of the spray pipe 401 is provided with external threads. After the spray pipe 401 is adjusted to a suitable position, it can be tightened with a nut.

[0028] In this embodiment, the clamping fixture 3 includes an upper clamping part 301 and a lower clamping part 302. The upper clamping part 301 is formed by bending both ends of a strip plate downwards. One end of the upper clamping part 301 abuts against the side wall of the plastic bucket 7, and the other end abuts against the bottom wall of the plastic bucket 7. A rotary drive motor 305 is fixedly installed on the main frame 1. The rotary drive motor 305 is connected to a reducer 306. The output end of the reducer 306 is fixedly connected to the upper clamping part 301.

[0029] The rotary drive motor 305 serves as the power source, providing the power required for rotational motion. The reducer 306 is used to reduce the high speed of the rotary drive motor 305 while increasing the output torque. After the rotary drive motor 305 starts, the upper clamping part 301 rotates synchronously. The upper clamping part 301, through its downwardly bent portions at both ends, tightly abuts against the side and bottom walls of the plastic bucket 7, thereby driving the entire plastic bucket 7 to rotate stably.

[0030] In this embodiment, the lower clamping part 302 includes a liftable base plate 303. Both ends of the base plate 303 are bent upwards. One end of the base plate 303 abuts against the side wall of the plastic bucket 7, and the other end abuts against the top of the plastic bucket 7. A vertically sliding support rod 304 is connected inside the cleaning tank 2. The top of the support rod 304 extends upward through the bottom plate 303 and is rotatably connected to the bottom plate 303. The top of the support rod 304 corresponds to the opening of the plastic bucket 7, and its bottom extends downward through the bottom wall of the cleaning tank 2 and is slidably and sealingly connected to the bottom wall of the cleaning tank 2.

[0031] During the upward movement, the base plate 303 moves from its initial position to the bottom of the plastic bucket 7. The upward-bent portions at both ends of the base plate 303, together with the upper clamping part 301, secure the plastic bucket 7 and tilt the bucket to facilitate rapid drainage. After cleaning, the base plate 303 returns to its original position.

[0032] In this embodiment, the internal cleaning mechanism 5 includes an internal nozzle 501 fixed on the base plate 303, a water outlet channel inside the support rod 304, the internal nozzle 501 communicating with the water outlet channel, and a lifting drive mechanism 6 connected to the bottom of the support rod 304.

[0033] The lifting drive mechanism 6 pushes the support rod 304 upward, causing the base plate 303 and the support rod 304 to rise accordingly. The inner nozzle 501 enters the opening of the plastic bucket 7. At this time, the inner nozzle 501 not only cleans the inside of the plastic bucket 7, but also, in conjunction with the inner wall of the bucket opening, provides positioning. The cleaning fluid enters through the water inlet channel inside the support rod 304 and is finally sprayed out by the inner nozzle 501, rinsing the inner wall of the plastic bucket 7.

[0034] In this embodiment, the lifting drive mechanism 6 is a lifting cylinder 601 fixedly connected to the main frame 1, and the output end of the lifting cylinder 601 is fixedly connected to the bottom of the support rod 304.

[0035] The lifting cylinder 601 extends, pushing the support rod 304 and the inner nozzle 501 upwards until the inner nozzle 501 reaches the predetermined cleaning position. After cleaning, the output end of the lifting cylinder 601 retracts, pulling the support rod 304, the base plate 303, and the inner nozzle 501 downwards, so that the inner nozzle 501 completely exits the plastic bucket 7.

[0036] In this embodiment, a transmission chain is rotatably mounted on the bottom wall of the cleaning tank 2, and multiple positioning fixtures for placing plastic buckets 7 are fixedly mounted on the transmission chain. The bottom of the positioning fixture is provided with a channel for the lower clamping part 302 to pass through.

[0037] The drive chain continuously rotates on the inner bottom wall of the cleaning tank 2, and multiple positioning fixtures fixedly installed on the drive chain move synchronously. Plastic buckets 7, with their openings facing down, are sequentially placed into the moving positioning fixtures. When the positioning fixture carrying the plastic buckets 7 reaches the cleaning station, the drive chain stops running. At this time, the bottom plate 303 of the lower clamping part 302 rises from the channel at the bottom of the positioning fixture, lifting and further clamping the plastic buckets. After cleaning, the bottom plate 303 descends, placing the plastic buckets 7 back into the positioning fixtures. The drive chain then restarts, transporting the cleaned plastic buckets 7 away and feeding in the next plastic bucket 7 to be cleaned.

[0038] In this embodiment, the operator first places the plastic bucket 7 to be processed on the positioning fixture of the conveying system, and the transmission chain transports it to the cleaning station. After reaching the designated position, the lower clamping part 302 of the clamping fixture 3 rises from the bottom channel of the positioning fixture to lift the plastic bucket 7, while the upper clamping part 301 abuts against the bucket body from above to achieve a firm fixation.

[0039] The rotary drive motor 305 drives the clamping fixture 3 and the plastic bucket 7 to rotate through the reducer 306. Multiple nozzles of the external cleaning mechanism 4 spray the outer surface of the bucket with high pressure, while the cleaning fluid is sprayed out from the inner nozzle 501 through the channel inside the support rod 304 to rinse the inner wall of the bucket in all directions.

[0040] After cleaning, the water supply is stopped first, and then the lower clamping part 302 descends to put the plastic bucket 7 back into the positioning fixture. Finally, the transmission chain starts again, transporting the cleaned plastic bucket 7 to the unloading station, while a new plastic bucket 7 to be cleaned is sent in, starting the next cleaning cycle.

[0041] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A plastic bucket cleaning device, comprising a main frame, characterized in that, A cleaning tank is fixedly installed on the main frame. A rotatable clamping fixture is provided in the cleaning tank for clamping the plastic bucket. An external cleaning mechanism is provided in the cleaning tank for cleaning the outer surface of the plastic bucket. An internal cleaning mechanism is connected to the clamping fixture for cleaning the inside of the plastic bucket.

2. The plastic bucket cleaning equipment according to claim 1, characterized in that, The external cleaning mechanism includes a spray pipe connected to the main frame, and multiple external nozzles are fixedly provided on the outer wall of the spray pipe, with the spray direction of the external nozzles facing the plastic bucket.

3. The plastic bucket cleaning equipment according to claim 2, characterized in that, An adjustment plate is fixedly installed on the main frame, and a sliding groove is provided through the adjustment plate. The top of the spray pipe is slidably engaged with the sliding groove.

4. The plastic bucket cleaning equipment according to claim 1, characterized in that, The clamping fixture includes an upper clamping part and a lower clamping part. The upper clamping part is formed by bending both ends of a strip plate downwards. One end of the upper clamping part is used to abut against the side wall of the plastic bucket, and the other end is used to abut against the bottom wall of the plastic bucket. A rotary drive motor is fixedly mounted on the main frame, and the rotary drive motor is connected to a reducer. The output end of the reducer is fixedly connected to the upper clamping part.

5. The plastic bucket cleaning equipment according to claim 4, characterized in that, The lower clamping part includes a liftable base plate, both ends of which are bent upwards. One end of the base plate abuts against the side wall of the plastic bucket, and the other end abuts against the top of the plastic bucket. The cleaning tank is connected to a vertically sliding support rod. The top end of the support rod extends upward through the bottom plate and is rotatably connected to the bottom plate. The top end of the support rod corresponds to the opening of the plastic bucket, and its bottom end extends downward through the bottom wall of the cleaning tank and is slidably and sealingly connected to the bottom wall of the cleaning tank.

6. The plastic bucket cleaning equipment according to claim 5, characterized in that, The internal cleaning mechanism includes an internal nozzle fixedly mounted on the base plate, a water outlet channel inside the support rod, the internal nozzle communicating with the water outlet channel, and a lifting drive mechanism connected to the bottom end of the support rod.

7. The plastic bucket cleaning equipment according to claim 6, characterized in that, The lifting drive mechanism is a lifting cylinder fixedly connected to the main frame, and the output end of the lifting cylinder is fixedly connected to the bottom of the support rod.

8. The plastic bucket cleaning equipment according to claim 5, characterized in that, A transmission chain is rotatably mounted on the bottom wall of the cleaning tank. Multiple positioning fixtures for placing plastic buckets are fixedly mounted on the transmission chain. The bottom of the positioning fixtures is provided with a channel for the lower clamping part to pass through.

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