Waste mulching film scrubbing device

Abstract

The utility model relates to a waste mulching film scrubbing device which comprises a machine box, a feeding port and a discharging port are formed in the two axial ends of the machine box respectively, a rotating shaft is rotationally installed in the machine box and extends in the axial direction of the machine box, a spiral scrubbing plate is fixedly connected to the outer wall of the rotating shaft, the waste mulching film scrubbing device further comprises a driving mechanism for driving the rotating shaft to rotate, and a scrubbing plate assembly is fixedly arranged in the machine box. A scrubbing cavity is formed between the scrubbing plate assembly and the top of the machine box, the rotating shaft is located in the scrubbing cavity, and an opening is formed in the top of the machine box and covered with a top cover. The scrubbing cavity is formed by the scrubbing plate assembly and the top of the machine box, the rotating shaft drives the spiral scrubbing plate to scrub the mulching film in the scrubbing cavity, the top of the machine box is open, a worker can check, clean and the like the interior of the scrubbing cavity by opening the top cover, operation is easy, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic film washing devices, specifically a waste plastic film washing device. Background Technology

[0002] Currently, most agricultural mulch films are made of PE material, which is not easily degraded. When left in the soil, they create white pollution, necessitating the recycling of waste mulch films. After recycling, the waste mulch film contains impurities such as soil clods and straw. Therefore, the film needs to be washed to remove these impurities and obtain usable mulch film.

[0003] Patent CN220126975U discloses an agricultural mulch film washing and separation device, comprising an upper cylinder and a lower cylinder joined together to form a cylinder body. The lower cylinder body is a screen plate, and a water collection and protective cover is connected to the outside of the screen plate. A rotating roller is rotatably installed inside the cylinder body. One end of the roller passes through the cylinder body and is connected to a drive motor via a transmission wheel and belt. A feed inlet is set at the end of the upper cylinder body near the drive motor, and a discharge outlet is set at the end of the lower cylinder body away from the feed inlet. Continuous spiral blades are installed on the roller in the rubbing zone, and arc-shaped radial rubbing plates are set on the spiral pitch component. Axial rubbing plates are set on the inner wall of the upper cylinder in the rubbing zone. Intermittent spiral blades are installed on the roller in the washing and separation zone, and water spray holes are opened on the cylinder walls of both the upper and lower cylinder bodies. Fan-shaped intermittent spiral blades are installed on the roller in the dewatering zone. This device solves the problem of difficult removal and washing of adhesive substances on agricultural mulch film, and reduces washing and separation costs.

[0004] Because the cylinder formed by the combination of the upper and lower cylinders in this patent is enclosed, and the rotating roller is located inside the cylinder, when maintenance or cleaning of the inside of the cylinder is required, it is necessary to first disassemble the outer protective cover and the water collection protective cover, and then disassemble the upper and lower cylinders before internal work can be carried out, which is quite cumbersome and inconvenient to assemble and disassemble. Moreover, the lower cylinder is a single structure, which is not convenient to replace. Once damaged, the entire unit needs to be replaced, which is also costly. Furthermore, the lower cylinder, as a screen plate, only has the function of filtering water, which is limited to a single function and still needs further improvement. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a waste plastic film washing device, which solves the problems of inconvenient internal maintenance, inconvenient screen plate disassembly and replacement, high maintenance costs, and limited functionality of existing waste plastic film washing devices.

[0006] This utility model is achieved through the following technical solution: a waste plastic film washing device, including a machine box, with an inlet and an outlet respectively provided at both ends of the machine box along the axial direction, a rotating shaft rotatably installed inside the machine box, the rotating shaft extending along the axial direction of the machine box, a spiral rubbing plate fixedly connected to the outer wall of the rotating shaft, and a drive mechanism for driving the rotating shaft to rotate, a rubbing plate assembly fixedly provided inside the machine box, a rubbing cavity formed between the rubbing plate assembly and the top of the machine box, the rotating shaft located in the rubbing cavity, and an opening provided at the top of the machine box covered with a top cover.

[0007] The scrubbing plate assembly in this solution forms a scrubbing chamber with the top of the casing. The rotating shaft drives the spiral scrubbing plate to scrub the mulch film in the scrubbing chamber. The top of the casing is open, and personnel can open the top cover to inspect and clean the inside of the scrubbing chamber. The operation is simple and the use is more convenient.

[0008] As an optimization, the top cover includes multiple movable cover plates arranged along the axial direction of the chassis. This optimized top cover, composed of multiple movable cover plates, allows for individual opening of a single cover plate during internal operations, eliminating the need to open the entire top cover, thus making operation more convenient and easier to use.

[0009] As an optimization, several sets of flushing pipes are fixedly distributed along the axial direction on the top cover. The inlets of the flushing pipes are connected to a water source, and the outlets of the flushing pipes are opposite to the scrubbing chamber. This optimized solution uses the flushing pipes to flush the mulch film inside the scrubbing chamber.

[0010] As an optimization, the scrubbing plate assembly is detachably installed inside the chassis. This optimized design allows for the detachable scrubbing plate assembly, facilitating easy disassembly and replacement.

[0011] As an optimization, the scrubbing plate assembly includes several pre-filter plates, several mounting plates, and several post-filter plates arranged sequentially along the axial direction. Multiple rubbing blocks are fixed to the upper surface of the mounting plates, and the upper surface of each rubbing block has serrated rubbing teeth. In this optimized scrubbing plate assembly, the rinsing water is discharged through the pre-filter plates. The rubbing blocks on the mounting plates cooperate with the spiral rubbing plates on the rotating shaft, increasing the scrubbing effect and improving the rubbing intensity on the mulch film. Debris adhering to the mulch film is more easily removed under the friction of the rubbing teeth, thus improving the scrubbing effect. Furthermore, with the scrubbing plate composed of several pre-filter plates, mounting plates, and filter plates, when a plate wears out, only the worn plate needs to be replaced, eliminating the need for complete replacement and saving maintenance costs.

[0012] As an optimization, the pre-filter plate, mounting plate, and water filter plate are all U-shaped. In this optimized design, the U-shaped plate naturally forms a scrubbing chamber within the casing, facilitating processing and installation.

[0013] As an optimization, the scrubbing plate assembly also includes a support frame, on which the front filter plate, mounting plate, and rear filter plate can all be detachably mounted. This optimized solution uses the support frame to fix and support each plate, making the scrubbing plate assembly a whole, which facilitates disassembly and assembly within the chassis. Furthermore, the detachable design of each plate makes replacement easy and enhances usability.

[0014] As an optimization, the top of the side walls at both ends of the chassis axially has a U-shaped groove facing downwards, and the inner diameter of the U-shaped groove matches the outer diameter of the shaft end. With this optimization, when installing the shaft, both ends of the shaft are inserted directly into the U-shaped groove, facilitating connection between the shaft end and the chassis and making shaft assembly and disassembly easier.

[0015] As an optimization, an axial rubbing plate is also fixedly connected to the rotating shaft, and the axial rubbing plate is connected to the spiral rubbing plate. Through the cooperation of the axial rubbing plate and the spiral rubbing plate, the mulch film is rubbed and washed in both the axial and tangential directions, thereby further improving the rubbing effect on the mulch film and making it cleaner.

[0016] The beneficial effects of this invention are as follows: During operation, the axial rubbing plate and the spiral rubbing plate work together to rub the mulch film in both the axial and tangential directions, thereby improving the rubbing effect. When the spiral rubbing plate moves the mulch film to the mounting plate area of ​​the rubbing plate assembly, it works in conjunction with the rubbing blocks on the mounting plate to further increase the rubbing intensity of the mulch film, making the mulch film cleaner.

[0017] During operation, personnel can open the top cover to inspect the inside of the washing chamber. The operation is simple, and the top cover is composed of multiple movable cover plates. When working inside, one movable cover plate can be opened individually, without having to open the entire top cover, making the operation more convenient and easier to use.

[0018] The scrubbing plate assembly enhances the scrubbing effect and increases the scrubbing intensity on the mulch film by using scrubbing blocks set on the mounting plate. Furthermore, the scrubbing plate, composed of several pre-filter plates, mounting plates, and filter plates, allows for easy replacement of only the worn plate when it wears out, eliminating the need for complete replacement and saving on maintenance costs. The pre-filter plates, mounting plates, and filter plates are also detachable and mounted on the support frame, making disassembly and replacement even more convenient.

[0019] The waste plastic film scrubbing device adopts a split design. When disassembling, open the top cover, lift the rotating shaft upwards, and you can take out the scrubbing plate assembly. The whole assembly and disassembly are more convenient, saving time and effort. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a front sectional view of the present invention;

[0022] Figure 3 Side view of the chassis;

[0023] Figure 4 This is a three-dimensional structural diagram of the scrubbing board assembly (excluding the support frame).

[0024] Figure 5 Top view of the scrubbing board assembly;

[0025] Figure 6 Side view of the scrubbing board assembly;

[0026] Figure 7 for Figure 5 Enlarged view of part A;

[0027] Figure 8 This is a front view of the scrubbing board assembly;

[0028] Figure 9 This is a schematic diagram showing the installation of the washboard assembly in the chassis.

[0029] Figure 10 This is a schematic diagram of the three-dimensional structure of the rotating shaft;

[0030] As shown in the figure:

[0031] 1. Chassis; 11. Frame; 12. Feed inlet; 13. Discharge outlet; 14. Water tank; 15. Drain outlet; 16. U-shaped channel; 2. Top cover; 21. Movable cover plate; 3. Washing plate assembly; 31. Front filter plate; 32. Mounting plate; 33. Kneading block; 331. Kneading teeth; 34. Rear filter plate; 35. Support frame; 351. Rectangular support frame; 352. Horizontal connecting rod; 36. Washing chamber; 4. Rotating shaft; 5. Drive mechanism; 6. Flushing pipe; 61. Main pipe; 62. Branch pipe; 7. Spiral kneading plate; 8. Axial kneading plate. Detailed Implementation

[0032] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0033] like Figures 1-10 As shown, a waste plastic film washing device includes a housing 1, with an inlet 12 and an outlet 13 at its axial ends. A rotating shaft 4 is rotatably mounted inside the housing 1, extending axially along the housing 1. A spiral rubbing plate 7 is fixedly connected to the outer wall of the rotating shaft 4. The device also includes a drive mechanism 5 for driving the rotating shaft 4 to rotate. A rubbing plate assembly 3 is fixedly installed inside the housing 1, forming a rubbing chamber 36 between the rubbing plate assembly 3 and the top of the housing 1. The rotating shaft 4 is located within the rubbing chamber 36. The top of the housing 1 has an opening and is covered with a top cover 2.

[0034] In this embodiment, the chassis 1 has a rectangular box structure. To facilitate the fixing of the chassis, a frame 11 is fixed to the outer wall of the chassis 1, and the chassis 1 is placed on the ground via the frame 11. Because the top of the chassis 1 is open, personnel can open the top cover 2 to inspect and operate the inside of the washing chamber 36, making it more convenient to use.

[0035] Specifically, the top cover 2 includes multiple movable cover plates 21 arranged axially along the chassis 1, with adjacent movable cover plates 21 positioned close together to close the opening at the top of the chassis 1. In this embodiment, the movable cover plates 21 are hinged to the chassis 1 for easy opening and closing. Because the top cover 2 consists of multiple movable cover plates 21, each movable cover plate 21 can be opened individually for operation, eliminating the need to open the entire top cover, thus making operation more convenient and easier to use.

[0036] In this embodiment, the feed inlet 12 is located on the movable cover plate 21 at one end of the casing 1, and the discharge outlet 13 is located at the bottom of the other end of the casing 1. The mulch film enters the washing chamber 36 through the feed inlet 12, and is discharged from the discharge outlet 13 after washing and conveying.

[0037] Specifically, several sets of flushing pipes 6 are fixedly arranged axially on the top cover 2. The inlets of the flushing pipes 6 are connected to a water source, and the outlets of the flushing pipes 6 are opposite to the scrubbing chamber 36. In this embodiment, one set of flushing pipes 6 is fixedly installed on a movable cover plate 21. The flushing pipe 6 includes a main pipe 61 and multiple branch pipes 62 evenly distributed along the axial direction of the main pipe 61. The main pipe 61 is provided with the inlet, which is connected to the water source through a flexible hose. The branch pipes 62 are fixedly connected to the movable cover plate 21, and the outlets of the branch pipes 62 extend through the movable cover plate 21 into the scrubbing chamber 36, thereby flushing the mulch film. During maintenance, the flushing pipes 6 can be inspected and repaired by opening the corresponding movable cover plate 21, making it convenient to use.

[0038] The top of the side walls at both ends of the chassis 1 are provided with downward-facing U-shaped grooves 16, the inner diameter of which matches the outer diameter of the end of the rotating shaft 4. During installation, both ends of the rotating shaft 4 are placed in the U-shaped grooves 6 on both sides of the chassis, facilitating placement and installation. In this embodiment, bearing seats are fitted at both ends of the rotating shaft. After the rotating shaft is placed in the chassis, the bearing seats are bolted to the side walls of the chassis, thus achieving the rotating installation of the shaft.

[0039] The drive mechanism 5 includes a drive motor mounted on the frame 11, a drive pulley fixed to the output end of the drive motor, and a driven pulley fixed to the end of the rotating shaft 4. The drive pulley and the driven pulley are connected by belt drive.

[0040] The scrubbing plate assembly 3 can be detachably installed inside the casing 1 for easy disassembly and replacement.

[0041] Specifically, the scrubbing plate assembly 3 includes a support frame 35 and several front filter plates 31, several mounting plates 32, and several rear filter plates 34 arranged sequentially along the axial direction, with the front filter plates 31, mounting plates 32, and rear filter plates 34 arranged adjacent to each other. In this embodiment, the scrubbing plate assembly 3 includes one front filter plate 31, one mounting plate 32, and multiple rear filter plates 34. The front filter plates, mounting plates, and rear filter plates are all detachably mounted on the support frame 35, which secures and supports each plate, thus forming a complete scrubbing plate, facilitating disassembly and assembly within the machine housing. Furthermore, each plate can be individually disassembled and replaced, making it convenient to use and saving on maintenance and replacement costs.

[0042] In this embodiment, the front filter plate 31, the mounting plate 32, and the water filter plate 34 are all U-shaped structures and have the same size, so that the front filter plate, the mounting plate, and the water filter plate form a U-shaped scrubbing plate, and the inner cavity of the U-shaped scrubbing plate is the scrubbing chamber 36.

[0043] The support frame 35 described in this embodiment includes two rectangular support frames 351 arranged opposite each other, and multiple horizontal connecting rods 352 connecting the two rectangular support frames 351. The spacing between the two rectangular support frames 351 is adapted to the width of the U-shaped structure. The multiple horizontal connecting rods 352 are distributed along the length of the rectangular support frames 351, and both ends of the horizontal connecting rods 352 are fixed to the bottom of the two rectangular support frames 351 respectively. During installation, the front filter plate 31, the mounting plate 32, and the rear filter plate 34 are placed between the two rectangular support frames 351, and the multiple horizontal connecting rods 352 support the bottom of each plate. The upper ends of the side walls of the front filter plate, the mounting plate, and the filter plate are fixed to the two rectangular support frames 351 by bolts, thereby realizing the detachable installation of each plate.

[0044] In this embodiment, the width of the chassis 1 is adapted to the width of the support frame 35. The scrubbing plate assembly 3 is placed in the chassis 1 via the support frame 35 and fixed with bolts, enabling the scrubbing plate assembly 3 to be detachably installed. Furthermore, the scrubbing plate, supported by the support frame, forms a cavity with the bottom of the chassis, facilitating drainage.

[0045] After installation, the rotating shaft 4 is located in the inner cavity of the U-shaped scrubbing plate. The spiral scrubbing plate 7 on the outer wall of the rotating shaft 4 has a gap of 1 to 1.5 cm with the inner wall of the scrubbing plate. This gap ensures effective scrubbing of the mulch film and allows the spiral scrubbing plate 7 to drive the mulch film to move forward smoothly.

[0046] Preferably, multiple axial rubbing plates 8 are also fixedly connected to the rotating shaft 4. The multiple axial rubbing plates 8 are evenly distributed around the circumference of the rotating shaft 4, and the axial rubbing plates 8 are connected to the spiral rubbing plates 7. Through the cooperation of the axial rubbing plates 8 and the spiral rubbing plates 7, the mulch film is rubbed in both the axial and tangential directions, thereby further improving the rubbing effect on the mulch film and making the mulch film cleaner.

[0047] In this embodiment, multiple rubbing blocks 33 are fixedly attached to the upper surface of the mounting plate 32. The upper surface of each rubbing block 33 has serrated rubbing teeth 331. These rubbing blocks 33 are distributed at the arc-shaped bottom of the U-shaped mounting plate 32. The rubbing blocks 33 are fixed to the mounting plate 32 with bolts for easy replacement. The rubbing blocks 33, in conjunction with the spiral rubbing plate 7 and axial rubbing plate 8 on the rotating shaft 4, increase the rubbing effect and enhance the rubbing intensity on the mulch film. Debris adhering to the mulch film is more easily removed under the friction of the rubbing teeth, thus improving the rubbing effect.

[0048] The U-shaped front filter plate 31 and rear filter plate 34 have screening holes at their arc-shaped bottoms. After the impurities in the mulch film are crushed by rubbing, they can be discharged through the screening holes by rinsing through the flushing pipe.

[0049] In this embodiment, a conical water tank 14 is fixed to the bottom of the chassis 1. The bottom of the chassis 1 has an opening that communicates with the inner cavity of the water tank 14. The bottom of the water tank 14 has a drain outlet 15. The rinsing water discharged through the front filter plate 31 and the rear filter plate 34 is collected in the water tank 14 and discharged through the drain outlet 15.

[0050] Working principle: The plastic film is placed into the washing chamber 36 through the feed inlet 12. The drive motor drives the rotating shaft 4 to rotate, thereby rotating the spiral washing plate 7 and the axial washing plate 8. The plastic film is moved from the feed inlet 12 to the discharge outlet 13 by the spiral washing plate 7. During the movement, the spiral washing plate 7 and the axial washing plate 8 rub the plastic film. When it passes the mounting plate 32, the washing plate 33 enhances the rubbing effect on the plastic film, rubbing, crushing and removing the mud, straw and other impurities adhering to the plastic film, making it meet the standard of being able to pass through the screening holes for discharge. At the same time, the plastic film is washed with high-pressure water through the flushing pipe 6. The high-pressure water washes the crushed debris such as soil clods through the screening holes and discharges it into the water tank 14, and then discharges it through the drain outlet.

[0051] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A waste plastic film washing device, comprising a housing (1), wherein the housing (1) has an inlet (12) and an outlet (13) at its two axial ends respectively, a rotating shaft (4) is rotatably installed inside the housing (1), the rotating shaft (4) extends along the axial direction of the housing, and a spiral rubbing plate (7) is fixedly connected to the outer wall of the rotating shaft (4), and further comprising a driving mechanism (5) for driving the rotating shaft (4) to rotate, characterized in that: The casing (1) is fixedly provided with a scrubbing plate assembly (3), and a scrubbing cavity (36) is formed between the scrubbing plate assembly and the top of the casing (1). The rotating shaft (4) is located in the scrubbing cavity, and the top of the casing (1) is provided with an opening and covered with a top cover (2).

2. The waste plastic film washing device according to claim 1, characterized in that: The top cover (2) includes multiple movable cover plates (21) arranged along the axial direction of the chassis.

3. The waste plastic film washing device according to claim 1 or 2, characterized in that: Several sets of rinsing pipes (6) are fixedly distributed along the axial direction on the top cover (2). The inlet of the rinsing pipe is connected to the water source, and the outlet of the rinsing pipe is opposite to the scrubbing chamber (36).

4. The waste plastic film washing device according to claim 1, characterized in that: The scrubbing plate assembly (3) is detachably installed inside the chassis (1).

5. The waste plastic film washing device according to claim 1 or 4, characterized in that: The scrubbing plate assembly (3) includes several front filter plates (31), several mounting plates (32) and several rear filter plates (34) arranged sequentially along the axial direction. Several rubbing blocks (33) are fixed to the upper surface of the mounting plate (32), and the upper surface of the rubbing blocks is provided with serrated rubbing teeth (331).

6. The waste plastic film washing device according to claim 5, characterized in that: The front filter plate (31), mounting plate (32) and rear filter plate (34) are all U-shaped structures.

7. The waste plastic film washing device according to claim 6, characterized in that: The scrubbing plate assembly (3) also includes a support frame (35), and the front filter plate (31), mounting plate (32) and rear filter plate (34) can all be detachably mounted on the support frame (35).

8. The waste plastic film washing device according to claim 1, characterized in that: The top of the side walls at both ends of the chassis (1) is provided with a U-shaped groove (16) that faces downwards. The inner diameter of the U-shaped groove is adapted to the outer diameter of the end of the rotating shaft (4).

9. The waste plastic film washing device according to claim 1, characterized in that: An axial kneading plate (8) is also fixedly connected to the rotating shaft (4), and the axial kneading plate is connected to the spiral kneading plate (7).

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