A waste plastic recycling and regeneration production equipment

Abstract

The invention discloses a waste plastic recycling and regeneration production equipment, and the invention relates to the waste plastic recycling and regeneration technical field. The waste plastic recycling and regeneration production equipment comprises a support, and a self-spreading fine pulverizing mechanism for finely cutting and pulverizing waste plastics is installed on the upper end surface of the support, and a multi-stage combined shredding assembly comprises a grid-shaped cutter fixedly connected to the inner end surface of a rectangular mounting frame and a plurality of cross-shaped cutters fixedly connected to the lower end surface of the grid-shaped frame at equal intervals through a fixed column and corresponding to the mesh positions in the grid-shaped cutter. The invention realizes progressive pulverization of waste plastics from coarse pulverization to fine pulverization through a two-step pulverizing combination of a grid-shaped cutter and a cross-shaped cutter, and the multi-stage pulverizing method avoids stretching or tearing of plastics with strong toughness during the pulverizing process, ensures that the particles are uniform and of the same size, reduces the residual large particles, improves the quality of recycled plastics, and also enhances the applicability and flexibility to plastics of different materials.

Description

Technical Field

[0001] The invention relates to the technical field of waste plastic recycling and regeneration, in particular to waste plastic recycling and regeneration production equipment. Background Art

[0002] Waste plastics usually refer to plastic products that are discarded or recycled after use, including household plastic products (such as plastic bottles, plastic bags, food packaging, etc.), industrial plastics (such as plastic parts, packaging materials, etc.) and plastics in construction waste. Waste plastic recycling is a process of converting used plastic products into new plastic materials or products through various processing methods. This process can not only reduce environmental pollution, but also save resources and energy. In the process of waste plastic recycling, crushing is a key step, the purpose of which is to break larger plastic products into smaller particles or fragments, in preparation for subsequent cleaning, separation and melt granulation.

[0003] When the existing device crushes the waste plastic, it only drives the crushing teeth arranged on the outer side of the crushing wheel to crush the cut plastic. This crushing method has a general crushing effect when processing thick-walled, tough or large-sized plastics. The limitation of the single crushing structure causes the final plastic particles to be usually large and uneven in size. For tough plastics, the plastics will be stretched or torn instead of being crushed uniformly. Large plastic particles will affect the subsequent cleaning and reprocessing steps, reducing the quality of the recycled plastics.

[0004] Moreover, the single crushing method lacks multi-stage crushing steps, namely coarse crushing and fine crushing, which results in the failure to achieve the ideal crushing effect of plastic in one pass, requiring multiple repeated operations, which prolongs the crushing time. Summary of the invention

[0005] The present invention provides a waste plastic recycling and regeneration production equipment, which solves the technical problems that the existing plastic crushing device only relies on the crushing teeth on the outer side of the crushing wheel to perform single-stage crushing, which is difficult to effectively process thick-walled, tough or large-sized plastics, resulting in poor crushing effect, uneven particle size, and even causing plastic stretching or tearing, affecting the quality of subsequent cleaning and reprocessing, and lacks coarse and fine crushing multi-stage crushing steps, requiring repeated operations for multiple times, and prolonging the crushing time.

[0006] The present invention provides a waste plastic recycling and regeneration production equipment, including a support, wherein the upper end surface of the support is equipped with a self-spreading fine grinding mechanism for finely cutting and crushing the waste plastic, and the lower part of the support is equipped with a multi-step cleaning mechanism for reciprocatingly cleaning the crushed waste plastic. A linkage part for transmission connection between the self-spreading fine grinding mechanism and the multi-step cleaning mechanism is commonly provided, and the self-spreading fine grinding mechanism includes an installation box which is fixedly connected to the upper end surface of the support through a pillar and has an upper opening, a primary crushing component arranged on the installation box for preliminary crushing of the waste plastic, a portal frame fixedly connected to the upper part of the installation box, a reciprocating electric telescopic rod fixedly connected to the lower end surface of the transverse section of the portal frame, and a reciprocating electric telescopic rod arranged on the reciprocating electric telescopic rod for further cutting the waste plastic particles. The invention discloses a multi-stage combined shredding assembly for crushing, a screen fixedly connected to the lower part of the inner cavity of the installation box, and a pushing assembly jointly arranged between the multi-stage combined shredding assembly and the inner cavity of the installation box for automatically pushing the waste granular plastic to the position directly below the multi-stage combined shredding assembly for crushing. The multi-stage combined shredding assembly includes a grid frame fixedly connected to the lower end of a reciprocating electric telescopic rod, a plurality of convex plates respectively fixedly connected to the four corners of the outside of the grid frame, a sliding seat slidably sleeved on the outside of the convex plate, a top spring jointly fixedly connected between the convex plate and the sliding seat, a rectangular installation frame jointly fixedly connected to the lower end surface of the sliding seat, a grid-shaped cutter fixedly connected to the inner end surface of the rectangular installation frame, and a plurality of cross-shaped cutters equidistantly fixedly connected to the lower end surface of the grid frame through fixed columns and corresponding to the positions of the mesh holes in the grid-shaped cutter.

[0007] In one possible implementation, the pushing assembly includes two groups of guide grooves symmetrically opened on the front and rear cavity walls of the installation box, the guide grooves are composed of two transverse groove sections in different horizontal directions and an inclined groove connected between the two transverse groove sections, a sliding column is slidably connected in the guide groove, and a pushing plate is fixedly connected between two front and rear opposite sliding columns via a connecting plate, a pushing member for driving the pushing plate to reciprocate laterally so as to push the waste plastic to the middle of the screen is jointly installed between the rectangular installation frame and the pushing plate, and a limiting member is provided in the inner cavity of the installation box for cooperating with the sliding column to limit the push plate during its lateral movement to prevent its deflection.

[0008] In a possible implementation, the pushing member includes two rotating shafts that are symmetrically connected to the front and rear cavity walls of the installation box, the outside of the rotating shaft is fixedly connected to a connecting telescopic rod, the end of the connecting telescopic rod away from the rotating shaft is hinged to the upper part of the push plate, the outside of the rotating shaft is fixedly connected to a No. 1 gear, and the side of the rectangular installation frame close to the No. 1 gear is fixedly connected to a No. 1 rack that meshes with the No. 1 gear through a connecting column.

[0009] In a possible implementation, the limit member includes a plurality of sliding grooves opened on the front and rear cavity walls of the installation box and located directly below the guide groove, a sliding plate is slidably connected in the sliding groove, and a connecting telescopic column is fixedly connected between the sliding plate and the sliding column.

[0010] In a possible implementation, the primary crushing assembly includes two strip boxes with openings on the top, which are symmetrically fixed to the upper end surface of the mounting box by fixing rods. A crushing roller is symmetrically rotatably connected between the front and rear cavity walls of the strip boxes, and a plurality of feed pipes are equidistantly connected to the lower part of the strip boxes.

[0011] In a possible implementation, the multi-step cleaning mechanism includes a cleaning cylinder connected to the lower part of the installation box and located directly below the screen, the cleaning cylinder is rotatably connected to a mounting shaft through a transverse plate, the circumferential outer wall of the mounting shaft is equidistantly fixedly connected to a plurality of rectangular boxes with upper and lower openings through connecting columns, and the rectangular boxes are equidistantly arranged in a plurality of rows along the axial direction of the mounting shaft, a first inclined plate is fixedly connected to a cavity wall on one side of the inner cavity of the rectangular box close to the mounting shaft, a second inclined plate located directly below the first inclined plate is fixedly connected to a cavity wall on one side of the inner cavity of the rectangular box away from the mounting shaft, and the second inclined plate A number of brush heads are fixedly connected to the upper end surface of the No. 1 inclined plate at equal distances, and the upper and lower adjacent rectangular boxes are connected to each other through connecting pipes. A gathering hopper connected to the upper rectangular box is fixedly connected to the upper end of the installation shaft and located directly below the screen. An annular tube is fixedly connected to the inner cavity of the cleaning cylinder, and a side of the annular tube close to the installation shaft is rotatably connected to a annular plate. A conveying pipe is connected to the upper rectangular box, and one end of the conveying pipe away from the installation shaft passes through the annular plate and is connected to the inner cavity of the annular tube. An injection pipe connected to the annular tube is fixedly connected in the cleaning cylinder.

[0012] In one possible implementation, the linkage part includes a transmission shaft that penetrates and is rotatably connected to the cleaning cylinder, the transmission shaft and the mounting shaft are connected to each other through a bevel gear set, the rear end of the transmission shaft is fixedly connected to a No. 2 gear, and the grid-like frame is fixedly connected to a No. 2 rack that meshes with the No. 2 gear through a U-shaped frame.

[0013] In a possible implementation, a filter disc is fixedly connected to the upper end surface of the support and is located directly below the cleaning cylinder through a bearing column, and a plurality of diverter plates are fixedly connected to the upper end surface of the filter disc at equal intervals around the circumference.

[0014] It can be seen from the above technical solutions that the present invention has the following advantages:

[0015] In the present invention, the grid-shaped cutter in the multi-stage combined shredding component first performs the first step of shredding on the waste plastic particles, and then the cross-shaped cutter moves down and enters the mesh position of the grid-shaped cutter to perform the second step of shredding. The two-step shredding process is combined to achieve progressive shredding of the waste plastic from coarse shredding to fine shredding, without the need for repeated operations, shortening the shredding time and improving the overall shredding efficiency. At the same time, the multi-stage shredding method combined with the grid-shaped cutter and the cross-shaped cutter can effectively avoid the situation where the tougher plastic is stretched or torn during the shredding process, ensuring that each piece of plastic is cut more evenly and neatly, thereby evenly shredding the plastic particles to a smaller and consistent size, avoiding the residue of large particles, and helping to improve the quality of recycled plastics.

[0016] In the present invention, the combination of two different cutter structures, a grid-shaped cutter and a cross-shaped cutter, enables the crushing process to better handle thick-walled, tough or large-sized plastics, and is not limited to material types that are difficult to handle with traditional equipment, thereby improving the applicability and flexibility of waste plastics of different materials.

[0017] In the present invention, through the combination of a multi-stage combined shredding component and a pushing component, the waste plastics can be shredded and automatically pushed toward the middle at the same time. The pushing component is used to automatically spread the plastics evenly on the screen, and ensure that the plastic particles are located directly below the multi-stage shredding component, thereby avoiding the accumulation or concentration of plastics in a certain position. The evenly distributed plastic materials reduce the dead corners that may occur during the shredding process, ensuring that each part of the plastic can be fully shredded, thereby achieving a more uniform shredding effect, thereby improving the overall pulverizing quality.

[0018] In the present invention, the installation shaft in the multi-step cleaning mechanism drives the rectangular box to rotate back and forth, so that the waste plastic particles roll back and forth on the first inclined plate and the second inclined plate respectively, so as to realize the reciprocating cleaning of the waste plastic particles, and then the waste plastic particles are sequentially passed through the axially arranged rectangular boxes from top to bottom to perform multi-stage cleaning. The reciprocating cleaning and multi-stage cleaning designs are combined to make each cleaning more efficient, thereby cleaning the waste plastic particles more thoroughly and improving the cleaning effect.

[0019] In the present invention, a self-spreading fine grinding mechanism is combined with a multi-step cleaning mechanism to realize an integrated processing of waste particle grinding and cleaning, which reduces the step of transferring to the cleaning equipment after grinding in the traditional process, simplifies the entire process, and effectively reduces the energy consumption of transferring materials between different equipment, thereby reducing the overall energy consumption. After the waste plastics are crushed, they immediately enter the cleaning process, which can quickly remove pollutants and dust on the surface of the plastic particles, reduce the risk of secondary pollution, and thus improve the purity and quality of the recycled plastics. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of the waste plastic recycling and regeneration production equipment provided by the present invention.

[0022] Figure 2 This is a schematic diagram of the rear view of the overall structure provided by the present invention.

[0023] Figure 3 This is a schematic cross-sectional structure diagram of the self-spreading fine grinding mechanism provided by the present invention.

[0024] Figure 4 This is a schematic diagram of the structure of the multi-stage combined shredding assembly provided by the present invention.

[0025] Figure 5 This is a schematic diagram of the installation structure of the pusher assembly provided by the present invention.

[0026] Figure 6 The present invention provides Figure 5 Schematic diagram of the enlarged structure of part A in the figure.

[0027] Figure 7 This is a schematic diagram of the partial installation structure of the pusher assembly provided by the present invention.

[0028] Figure 8 A schematic diagram of the three-dimensional installation structure of the multi-step cleaning mechanism provided by the present invention from a rear-view perspective.

[0029] Fig. 9 This is a schematic diagram of the connection structure between the multi-step cleaning mechanism and the partial self-spreading fine grinding mechanism provided by the present invention.

[0030] Fig.10 The present invention provides Fig. 9 Schematic diagram of the enlarged structure of part B.

[0031] The above drawings include the following reference numerals:

[0032] 1. Support; 2. Self-spreading fine crushing mechanism; 21. Installation box; 22. Primary crushing assembly; 221. Strip box; 222. Crushing roller; 223. Feeding pipe; 23. Door frame; 24. Reciprocating electric telescopic rod; 25. Multi-stage combined shredding assembly; 251. Grid frame; 252. Convex plate; 253. Sliding seat; 254. Top spring; 255. Rectangular installation frame; 256. Grid cutter; 257. Cross cutter; 26. Screen; 27. Pushing assembly; 271. Guide groove; 272. Sliding column; 273. Pushing plate; 274. Pushing piece; 2741. Rotating shaft; 2742. Connecting telescopic rod; 2743. Gear No. 1; 2744. Rack No. 1; 275. Limiting member; 2751. Sliding groove; 2752. Sliding plate; 2753. Connecting telescopic column; 3. Multi-step cleaning mechanism; 31. Cleaning cylinder; 32. Mounting shaft; 33. Rectangular box; 34. Inclined plate No. 1; 35. Inclined plate No. 2; 36. Brush head; 37. Connecting pipe; 38. Aggregate hopper; 39. Annular pipe; 310. Annular plate; 311. Delivery pipe; 312. Injection pipe; 4. Linkage part; 41. Transmission shaft; 42. Bevel gear set; 43. Gear No. 2; 44. U-shaped frame; 45. Rack No. 2; 5. Filter plate; 6. Diverter plate. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] See also Figure 1 and Figure 2 The present invention provides a technical solution: a waste plastic recycling and regeneration production equipment, including a support 1, a self-spreading fine grinding mechanism 2 for finely cutting and crushing the waste plastic is installed on the upper end surface of the support 1, a multi-step cleaning mechanism 3 for reciprocatingly cleaning the crushed waste plastic is installed on the lower part of the support 1, and a linkage part 4 for transmission connection between the self-spreading fine grinding mechanism 2 and the multi-step cleaning mechanism 3 is jointly arranged between the self-spreading fine grinding mechanism 2 and the multi-step cleaning mechanism 3.

[0035] See also Figure 3In this embodiment, the self-spreading fine pulverizing mechanism 2 includes an installation box 21 which is fixedly connected to the upper end surface of the support 1 through a pillar and has an upper opening, a primary crushing component 22 arranged on the installation box 21 for preliminary crushing of waste plastics, a portal frame 23 fixedly connected to the upper part of the installation box 21, a reciprocating electric telescopic rod 24 fixedly connected to the lower end surface of the transverse section of the portal frame 23, a multi-stage combined shredding component 25 arranged on the reciprocating electric telescopic rod 24 for further cutting and crushing waste plastic particles, a screen 26 fixedly connected to the lower part of the inner cavity of the installation box 21, and a pushing component 27 jointly arranged between the multi-stage combined shredding component 25 and the inner cavity of the installation box 21 for automatically pushing the waste granular plastic to a position directly below the multi-stage combined shredding component 25 for easy crushing.

[0036] See also Figure 1 , Figure 2 and Figure 3 The primary crushing assembly 22 includes two strip boxes 221 with openings on the upper end surface of the installation box 21 which are symmetrically fixed to the left and right by fixing rods. A crushing roller 222 is symmetrically rotatably connected between the front and rear cavity walls of the strip box 221. A plurality of feed pipes 223 are equidistantly connected to the lower part of the strip box 221.

[0037] See also Figure 3 and Figure 4 The multi-stage combined shredding assembly 25 includes a grid-shaped frame 251 fixedly connected to the lower end of the reciprocating electric telescopic rod 24, a plurality of convex plates 252 respectively fixedly connected to the four corners of the outside of the grid-shaped frame 251, a slide seat 253 slidably sleeved on the outside of the convex plate 252, a top spring 254 fixedly connected between the convex plate 252 and the slide seat 253, a rectangular mounting frame 255 fixedly connected to the lower end surface of the slide seat 253, a grid-shaped cutter 256 fixedly connected to the inner end surface of the rectangular mounting frame 255, and a plurality of cross-shaped cutters 257 fixedly connected to the lower end surface of the grid-shaped frame 251 at equal intervals through fixing columns and corresponding to the mesh positions in the grid-shaped cutter 256.

[0038] First, the waste plastics are put into the strip box 221, and then the crushing roller 222 is driven by an external driving device to rotate to preliminarily crush the waste plastics into blocks. After the preliminary cutting, the waste plastics fall into the feeding pipe 223, and then fall onto the screen 26 along the feeding pipe 223. When the waste plastics accumulate to a certain amount on the screen 26, the crushing roller 222 is controlled to stop rotating, and then the reciprocating electric telescopic rod 24 is controlled to operate and contract to drive the grid frame 251 to move upward. The grid frame 251 then drives the rectangular mounting frame 255 to move upward through the convex plate 252 and the slide seat 253. During the upward movement of the rectangular mounting frame 255, the pushing assembly 27 is triggered to operate. During the operation, the pushing assembly 27 pushes the waste plastics to the middle of the screen 26, so that the preliminarily crushed waste plastics can be evenly spread on the screen 26.

[0039] Subsequently, the reciprocating electric telescopic rod 24 begins to extend. When the reciprocating electric telescopic rod 24 extends and pushes the rectangular mounting frame 255 downward, the pushing assembly 27 is reversely triggered and moves away from the bottom of the rectangular mounting frame 255. When the rectangular mounting frame 255 moves downward, the grid-shaped cutter 256 moves downward synchronously until the grid-shaped cutter 256 moves downward and contacts the screen 26. At this time, the grid-shaped cutter 256 performs the first step of cutting the waste plastic blocks. Then the reciprocating electric telescopic rod 24 The grid frame 251 continues to stretch and pushes it to move downward. The grid frame 251 then drives the cross-shaped cutter 257 to move downward through the fixed column, and at the same time drives the convex plate 252 to move downward in the slide seat 253. The cross-shaped cutter 257 moves downward and gradually enters the holes of the grid-shaped cutter 256, and then further cuts the waste plastic blocks cut by the grid-shaped cutter 256 and located in its mesh holes, thereby completing the fine cutting and crushing of the waste plastic particles.

[0040] Then the reciprocating electric telescopic rod 24 begins to contract again, driving the grid frame 251 to move upward, and the grid frame 251 drives the cross-shaped cutter 257 to gradually move upward and move away from the grid-shaped cutter 256, and then the rectangular mounting frame 255 is driven to move upward, and the rectangular mounting frame 255 then drives the grid-shaped cutter 256 to move upward, and the shredded waste particles pass through the screen 26 and enter the multi-step cleaning mechanism 3. The upward movement of the rectangular mounting frame 255 will also trigger the pushing assembly 27 to run again to push the waste plastic from both sides to the middle, repeating the above steps of finely crushing the waste plastic, while the grid-shaped cutter 256 and the cross-shaped cutter 257 are combined to cut the waste plastic, and the crushing roller 222 is controlled to rotate again to transport the preliminary cut pieces of the waste plastic to the screen 26.

[0041] See also Figure 3 , Figure 5 and Figure 7 In this embodiment, the pushing assembly 27 includes two groups of guide grooves 271 symmetrically opened on the front and rear cavity walls of the installation box 21, the guide groove 271 is composed of two transverse groove sections in different horizontal directions and an inclined groove connected between the two transverse groove sections, a sliding column 272 is slidably connected in the guide groove 271, and a pushing plate 273 is fixedly connected between the two front and rear opposite sliding columns 272 through a connecting plate, and a pushing member 274 for driving the pushing plate 273 to reciprocate laterally so as to push the waste plastic to the middle of the screen 26 is installed between the rectangular installation frame 255 and the pushing plate 273, and a limiting member 275 is provided in the inner cavity of the installation box 21 for cooperating with the sliding column 272 to limit the pushing plate 273 during lateral movement to prevent its deflection.

[0042] See also Figure 5 , Figure 6 and Figure 7The push member 274 includes two rotating shafts 2741 symmetrically connected between the front and rear cavity walls of the installation box 21, the outside of the rotating shaft 2741 is fixedly connected with a connecting telescopic rod 2742, the end of the connecting telescopic rod 2742 away from the rotating shaft 2741 is hinged to the upper part of the pushing plate 273, the outside of the rotating shaft 2741 is fixedly connected with a No. 1 gear 2743, and the side of the rectangular installation frame 255 close to the No. 1 gear 2743 is fixedly connected with a No. 1 rack 2744 meshing with the No. 1 gear 2743 through a connecting column. The limiting member 275 includes a plurality of sliding grooves 2751 opened on the front and rear cavity walls of the installation box 21 and located directly below the guide groove 271, and a sliding plate 2752 is slidably connected in the sliding groove 2751, and a connecting telescopic column 2753 is fixedly connected between the sliding plate 2752 and the sliding column 272.

[0043] The initial positions of the push plate 273 are respectively located at the left and right parts of the upper part of the screen 26. After the preliminary cutting, the waste plastic is transported to the screen 26, and when the rectangular mounting frame 255 is opened and moved upward, the rectangular mounting frame will drive the No. 1 rack 2744 to move upward synchronously, and the No. 1 rack 2744 moves upward to mesh with the No. 1 gear 2743 and drives the No. 1 gear 2743 to rotate, and the No. 1 gear 2743 then drives the rotating shaft 2741 to rotate, and the rotating shaft 2741 then drives the connecting telescopic rod 2742 to rotate, so that the two connecting telescopic rods 2742 swing close to each other, and the connecting telescopic rod 2742 then drives the two push plates 273 to move close to each other, and the process of the push plate 273 moving drives the sliding column 272 to slide in the guide groove 271. The push plate 273 first pushes the waste plastic block toward the middle of the screen 26 for a distance, and when the sliding column 272 slides into the inclined groove in the guide groove 271, it will gradually move upward and drive the push plate 273 to gradually move upward, so that a certain gap appears between the push plate 273 and the screen 26, and then the sliding column 272 entering the upper transverse groove section of the guide groove 271 guides the upward pushed plate 273 to continue moving toward the middle of the screen 26. In the process of the two push plates 273 moving close to each other, the gap generated between the push plate 273 and the screen 26 can be used to push the waste plastic block to be evenly spread on the screen 26, thereby facilitating the cutting of the waste plastic during the subsequent downward movement of the grid cutter 256 and the cross cutter 257.

[0044] When the rectangular mounting frame 255 moves downward, the No. 1 rack 2744 will be driven to move downward synchronously and then mesh with the No. 1 gear 2743 and drive the No. 1 gear 2743 to rotate in the opposite direction. The No. 1 gear 2743 then drives the rotating shaft 2741 to rotate, and the rotating shaft 2741 then drives the connecting telescopic rod 2742 to rotate, so that the two connecting telescopic rods 2742 swing in opposite directions, and the telescopic rods then drive the push plate 273 to move away from each other until the push plate 273 moves to the initial position.

[0045] When the sliding column 272 slides in the guide groove 271, it will also drive the sliding plate 2752 to slide in the sliding groove 2751 through the connected telescopic column 2753. The sliding plate 2752 and the connected telescopic column 2753 are used to limit the sliding column 272 in the transverse movement, so that the sliding column 272 can only move laterally to prevent the sliding column 272 from rotating, thereby ensuring that the push plate 273 always remains perpendicular to the screen 26 during the movement.

[0046] See also Figure 8 , Fig. 9 and Fig.10 In this embodiment, the multi-step cleaning mechanism 3 includes a cleaning cylinder 31 which is connected to the lower part of the installation box 21 and is located directly below the screen 26. The cleaning cylinder 31 is rotatably connected to a mounting shaft 32 through a transverse plate. The outer wall of the circumference of the mounting shaft 32 is equidistantly fixedly connected to a plurality of rectangular boxes 33 with upper and lower openings through a connecting column, and the rectangular boxes 33 are equidistantly arranged in a plurality of rows along the axial direction of the mounting shaft 32. A first inclined plate 34 is fixedly connected to a cavity wall on one side of the inner cavity of the rectangular box 33 close to the mounting shaft 32, and a second inclined plate 35 located directly below the first inclined plate 34 is fixedly connected to a cavity wall on one side of the inner cavity of the rectangular box 33 away from the mounting shaft 32. A plurality of brush heads 36 are fixedly connected to the upper end surfaces of the second inclined plate 35 and the first inclined plate 34 at equal distances. The upper and lower adjacent rectangular boxes 33 are connected to each other through a connecting pipe 37. A collecting hopper 38 connected to the rectangular box 33 located at the top is fixedly connected directly below the screen 26, an annular tube 39 is fixedly connected to the inner cavity of the cleaning cylinder 31, and an annular plate 310 is rotatably connected to the side of the annular tube 39 close to the mounting shaft 32, a conveying pipe 311 is connected to the rectangular box 33 located at the top, and the end of the conveying pipe 311 away from the mounting shaft 32 passes through the annular plate 310 and is connected to the inner cavity of the annular tube 39, an injection pipe 312 connected to the annular tube 39 is fixedly connected in the cleaning cylinder 31, the No. 1 inclined plate 34 and the No. 2 inclined plate 35 are both in an inclined state with a lower side close to the mounting shaft 32 and a higher side away from the mounting shaft 32, a filter disc 5 is fixedly connected to the upper end surface of the support 1 and located directly below the cleaning cylinder 31 through a bearing column, and a plurality of diverter plates 6 are fixedly connected to the upper end surface of the filter disc 5 at equal intervals around the circumference.

[0047] See also Figure 2 and Figure 8 The linkage part 4 includes a transmission shaft 41 which penetrates and is rotatably connected to the cleaning cylinder 31. The transmission shaft 41 and the mounting shaft 32 are connected to each other through a bevel gear set 42. A second gear 43 is fixedly connected to the rear end of the transmission shaft 41. A second rack 45 meshing with the second gear 43 is fixedly connected to the grid frame 251 through a U-shaped frame 44.

[0048] After being finely shredded, the waste plastic passes through the screen 26 and enters the gathering hopper 38, and then enters the rectangular box 33 located at the upper part in sequence along the inner arc surface of the gathering hopper 38. The waste plastic particles entering the upper rectangular box 33 will be blocked by the No. 1 inclined plate 34 at its upper part, and then water is passed into the injection pipe 312, and the water then flows into the annular pipe 39 through the injection pipe 312, and then flows into the rectangular box 33 through the conveying pipe 311.

[0049] In the process of fine cutting and crushing of waste plastics, the grid frame 251 that reciprocates up and down will also drive the U-shaped frame 44 to move synchronously, and the U-shaped frame 44 will then drive the No. 2 rack 45 to move up and down, and the No. 2 rack 45 will then drive the No. 2 gear 43 to rotate back and forth, and the No. 2 gear 43 will drive the transmission shaft 41 to rotate back and forth, and the transmission shaft 41 will then drive the installation shaft 32 to rotate back and forth through the bevel gear set 42, and the installation shaft 32 will then drive the rectangular box 33 to rotate back and forth.

[0050] The centrifugal force generated during the rotation of the rectangular box 33 causes the waste plastic particles to gradually move along the upper inclined surface of the No. 1 inclined plate 34 toward a direction away from the mounting shaft 32. While the waste plastic particles are being swung, the water introduced into the rectangular box 33 will also flow along the same path. The water flow and the waste plastic particles will contact the brush head 36 during the movement on the surface of the No. 1 inclined plate 34, thereby cleaning the dirt on the surface of the waste plastic particles. When the waste plastic particles are swung to the gap between the No. 1 inclined plate 34 and the side cavity of the rectangular box 33, the mounting shaft 32 stops rotating, and then, the waste plastic particles and water enter the No. 2 inclined plate 35 under gravity, and then move in the opposite direction along the No. 2 inclined plate 35 toward the mounting shaft 32. When the waste plastic particles flow on the surface of the No. 2 inclined plate 35, they will rub against the brush head 36 on the surface of the No. 2 inclined plate 35, thereby cleaning the surface of the waste plastic particles again.

[0051] Then the waste plastic particles fall from the gap between the second inclined plate 35 and the rectangular box 33 into the connecting pipe 37, and then enter the lower rectangular box 33, and then enter the No. 1 inclined plate 34 in the next rectangular box 33, and then the mounting shaft 32 is driven to reverse. The centrifugal force generated when the mounting shaft 32 reverses causes the waste plastic particles to repeat the above steps, that is, flow on the No. 1 inclined plate 34 in the next rectangular box 33 in a direction away from the mounting shaft 32, and then move to the No. 2 inclined plate 35, and move on the surface of the No. 2 inclined plate 35 in a direction close to the mounting shaft 32, so that the waste plastic particles can be reciprocated and cleaned at the same time and multiple steps can be performed, so that the surface of the waste plastic particles can be cleaned more thoroughly.

[0052] After cleaning, the waste plastic particles are discharged from the lower rectangular box 33 and fall onto the filter plate 5. The diverter plate 6 is used to evenly distribute the waste plastic particles on the filter plate 5, and the cleaned sewage passes through the filter plate 5 and enters the lower part.

[0053] During operation, the waste plastic particles are first input into the primary crushing component 22 for preliminary crushing, and then the multi-stage combined shredding component 25 is driven to operate by the reciprocating electric telescopic rod 24. The operation of the multi-stage combined shredding component 25 simultaneously triggers the operation of the pushing component 27, and the pushing component 27 is utilized to evenly spread the waste plastic particles on the screen 26, and then the multi-stage combined shredding component 25 is operated to further perform multi-stage fine cutting and crushing on the waste plastic particles, and the finely crushed waste plastic particles pass through the screen 26 and enter the multi-step cleaning mechanism 3, and the operation of the self-spreading fine crushing mechanism 2 will also drive the multi-step cleaning mechanism 3 to operate through the linkage part 4, and then the multi-step cleaning mechanism 3 is used to perform multi-step reciprocating cleaning on the waste plastic particles.

[0054] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste plastic recycling and regeneration production equipment, comprising a support (1), characterized in that: The upper end surface of the support (1) is provided with a self-spreading fine pulverizing mechanism (2) for finely cutting and pulverizing waste plastics, and the lower part of the support (1) is provided with a multi-step cleaning mechanism (3) for reciprocatingly cleaning the pulverized waste plastics, and a linkage part (4) for transmission connection between the self-spreading fine pulverizing mechanism (2) and the multi-step cleaning mechanism (3) is provided between them; The self-spreading fine grinding mechanism (2) comprises: A mounting box (21) fixedly connected to the upper end surface of the support (1) through a support and having an upper opening, a primary crushing assembly (22) arranged on the mounting box (21) for preliminary crushing of waste plastics, a door frame (23) fixedly connected to the upper part of the mounting box (21), a reciprocating electric telescopic rod (24) fixedly connected to the lower end surface of the transverse section of the door frame (23), a multi-stage combined shredding assembly (25) arranged on the reciprocating electric telescopic rod (24) for further cutting and crushing waste plastic particles, a screen (26) fixedly connected to the lower part of the inner cavity of the mounting box (21), and a pushing assembly (27) jointly arranged between the multi-stage combined shredding assembly (25) and the inner cavity of the mounting box (21) for automatically pushing waste plastic particles to a position directly below the multi-stage combined shredding assembly (25) for crushing; The multi-stage combined shredding assembly (25) comprises: A grid-shaped frame (251) fixedly connected to the lower end of a reciprocating electric telescopic rod (24), a plurality of convex plates (252) respectively fixedly connected to the four corners of the outside of the grid-shaped frame (251), a slide seat (253) slidably sleeved on the outside of the convex plate (252), a top spring (254) fixedly connected between the convex plate (252) and the slide seat (253), a rectangular mounting frame (255) fixedly connected to the lower end surface of the slide seat (253), a grid-shaped cutter (256) fixedly connected to the inner end surface of the rectangular mounting frame (255), and a plurality of cross-shaped cutters (257) fixedly connected to the lower end surface of the grid-shaped frame (251) at equal intervals through fixing columns and corresponding to the positions of mesh holes in the grid-shaped cutter (256); The pusher assembly (27) comprises two groups of guide grooves (271) symmetrically arranged on the front and rear cavity walls of the installation box (21), the guide grooves (271) comprising two transverse groove sections in different horizontal directions and an inclined groove connected between the two transverse groove sections, a sliding column (272) is slidably connected in the guide groove (271), a pusher plate (273) is fixedly connected between the two front and rear opposite sliding columns (272) via a connecting plate, a pusher member (274) for driving the pusher plate (273) to move horizontally back and forth so as to push the waste plastic to the middle of the screen (26) is installed between the rectangular installation frame (255) and the pusher plate (273), and a limit member (275) is provided in the inner cavity of the installation box (21) for cooperating with the sliding column (272) to limit the pusher plate (273) during its horizontal movement to prevent it from deflecting.

2. The waste plastic recycling and regeneration production equipment according to claim 1 is characterized by: The push member (274) includes two rotating shafts (2741) symmetrically connected to the front and rear walls of the installation box (21) for rotation. The rotating shaft (2741) is fixedly connected to a connecting telescopic rod (2742) on the outside. The end of the connecting telescopic rod (2742) away from the rotating shaft (2741) is hinged to the upper part of the push plate (273). The rotating shaft (2741) is fixedly connected to a No. 1 gear (2743) on the outside. The rectangular installation frame (255) is fixedly connected to a No. 1 rack (2744) meshing with the No. 1 gear (2743) on one side close to the No. 1 gear (2743) through a connecting column.

3. The waste plastic recycling and regeneration production equipment according to claim 1 is characterized by: The limiting member (275) comprises a plurality of sliding grooves (2751) which are opened on the front and rear cavity walls of the installation box (21) and are located directly below the guide groove (271); a sliding plate (2752) is slidably connected in the sliding groove (2751); and a connecting telescopic column (2753) is fixedly connected between the sliding plate (2752) and the sliding column (272).

4. The waste plastic recycling and regeneration production equipment according to claim 1 is characterized by: The primary crushing assembly (22) comprises two strip boxes (221) which are symmetrically fixedly connected to the upper end surface of the installation box (21) through fixing rods and have an upper opening, a crushing roller (222) is symmetrically rotatably connected between the front and rear cavity walls of the strip box (221), and a plurality of material conveying pipes (223) are equidistantly connected to the lower part of the strip box (221).

5. The waste plastic recycling and regeneration production equipment according to claim 1 is characterized by: The multi-step cleaning mechanism (3) comprises a cleaning cylinder (31) connected to the lower part of the installation box (21) and located directly below the screen (26); a mounting shaft (32) is rotatably connected to the cleaning cylinder (31) via a transverse plate; a plurality of rectangular boxes (33) with upper and lower openings are equidistantly fixedly connected to the circumferential outer wall of the installation shaft (32) via a connecting column; and the rectangular boxes (33) are equidistantly arranged in a plurality of rows along the axial direction of the installation shaft (32); a first inclined plate (34) is fixedly connected to the cavity wall of the inner cavity of the rectangular box (33) on one side close to the installation shaft (32); a second inclined plate (35) located directly below the first inclined plate (34) is fixedly connected to the cavity wall of the inner cavity of the rectangular box (33) on one side away from the installation shaft (32); and the upper end surfaces of the second inclined plate (35) and the first inclined plate (34) are equidistantly fixedly connected. A plurality of bristle heads (36) are fixedly connected, and the upper and lower adjacent rectangular boxes (33) are connected to each other through a connecting pipe (37). A gathering hopper (38) connected to the upper rectangular box (33) is fixedly connected to the upper end of the installation shaft (32) and located directly below the screen (26). The inner cavity of the cleaning cylinder (31) is fixedly connected to an annular tube (39). The side of the annular tube (39) close to the installation shaft (32) is rotatably connected to an annular plate (310). The upper rectangular box (33) is connected to a conveying pipe (311). The end of the conveying pipe (311) away from the installation shaft (32) passes through the annular plate (310) and is connected to the inner cavity of the annular tube (39). An injection pipe (312) connected to the annular tube (39) is fixedly connected in the cleaning cylinder (31).

6. The waste plastic recycling and regeneration production equipment according to claim 5 is characterized by: The linkage part (4) comprises a transmission shaft (41) which penetrates and is rotatably connected to the cleaning cylinder (31); the transmission shaft (41) and the mounting shaft (32) are connected to each other through a bevel gear set (42); a second gear (43) is fixedly connected to the rear end of the transmission shaft (41); and a second rack (45) meshing with the second gear (43) is fixedly connected to the grid-shaped frame (251) through a U-shaped frame (44).

7. The waste plastic recycling and regeneration production equipment according to claim 5 is characterized by: A filter disc (5) is fixedly connected to the upper end surface of the support (1) and is located directly below the cleaning cylinder (31) via a bearing column, and a plurality of diverter plates (6) are fixedly connected to the upper end surface of the filter disc (5) at equal intervals around the circumference.

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