A multimodal plastic waste recycling, extrusion, and impurity removal device

Abstract

This invention relates to the field of waste recycling equipment and discloses a multimodal plastic waste recycling and extrusion impurity removal device. It includes a base, a first motor mounted on the base, and a storage unit located on the upper part of the base for storing plastic waste. The device further includes: a crushing unit mounted on the storage unit for crushing the plastic waste; an extrusion unit located inside the storage unit, fixed to the first motor via a rotating shaft and positioned below the crushing unit, for extruding the crushed plastic waste into plastic granules; and an impurity removal unit located at the outlet of the storage unit for filtering impurities from the discharged plastic granules. This invention provides a smooth and continuous processing flow, reducing material transfer and waiting time in intermediate stages, significantly improving the overall efficiency of plastic waste recycling, and reducing energy consumption and production costs.

Description

Technical Field

[0001] This invention relates to the field of waste recycling equipment technology, specifically a multimodal plastic waste recycling extrusion and impurity removal device. Background Technology

[0002] With the widespread use of plastic products, the amount of plastic waste generated is increasing daily. If plastic waste is not properly disposed of, it will not only cause serious environmental pollution, such as soil and water pollution, but also occupy a large amount of land resources.

[0003] The existing equipment has the following drawbacks: 1. Existing recycling equipment only performs simple crushing of plastic waste, without a dedicated extrusion granulation stage. This results in irregular shapes of recycled plastic, with loose plastic granules occupying a large space, making subsequent transportation difficult and increasing the difficulty and cost of subsequent processing. 2. When extruding plastic, existing plastic granulation equipment produces some powder residue in the granules after extrusion. Traditional extrusion equipment facilitates the screening of this powder residue, resulting in a high amount of powder residue in the formed granules.

[0004] Therefore, this application proposes a multimodal plastic waste recycling and extrusion equipment to solve the aforementioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a multimodal plastic waste recycling and extrusion equipment to solve the problems of loose plastic particles occupying a large space, which is inconvenient for subsequent transportation, and the large amount of powder residue in the formed particles.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multimodal plastic waste recycling, extrusion, and impurity removal device, comprising a base, a first motor mounted on the base, and a storage unit mounted on the upper end of the base for storing plastic waste, and further comprising:

[0007] A crushing unit, installed on the storage unit, is used to crush plastic waste;

[0008] The extrusion unit is located inside the storage unit, fixed to the rotating shaft of the first motor, and below the crushing unit. It is used to extrude the crushed plastic waste into plastic granules.

[0009] The impurity removal unit is located at the outlet of the storage unit and is used to filter impurities in the plastic particles discharged from the outlet.

[0010] The storage unit includes:

[0011] The extrusion bucket, fixed on the bracket at the upper end of the base, is used to store plastic waste that needs to be extruded and molded.

[0012] A crushing bin, located at the top of the extrusion bin, is used to store plastic waste that needs to be crushed;

[0013] The feed hopper, which is funnel-shaped and fixed to the top of the crushing barrel, is used to store the plastic waste that needs to be crushed.

[0014] The feed hopper is fixed inside the feed hopper and its lower end is arranged to converge towards the crushing unit, which is used to gather plastic waste towards the crushing unit.

[0015] The pulverizing unit includes:

[0016] The fixing base is fixed at equal angles to the outside of the crushing barrel;

[0017] The second motor is fixed on the mounting base;

[0018] The crushing shaft is fixed to the power output end of the second motor and passes through the crushing barrel on the other side, connected to another fixed base.

[0019] The shredder blades are alternately fixed on the two shredder shafts and are used to shred plastic waste that falls into the feed hopper.

[0020] The extrusion unit includes:

[0021] A heating chamber, located inside the extrusion barrel, is used to heat the plastic that falls into the extrusion barrel;

[0022] A granulation assembly, located inside the extrusion barrel and connected to a rotating shaft, is used to extrude plastic powder into plastic granules.

[0023] An extrusion assembly is mounted on the rotating shaft and located at the upper end of the granulation assembly, for extruding the plastic granules crushed at the upper part of the granulation assembly.

[0024] The extrusion unit further includes:

[0025] The dispensing disc, with an umbrella-shaped structure, is fixed to the top of the rotating shaft and is used to disperse the pulverized plastic powder.

[0026] The extrusion unit further includes:

[0027] A sealing disc, fixed on the rotating shaft, is located inside the extrusion barrel and below the granulation assembly, and is used to block the extruded plastic granules.

[0028] A guide plate, located inside the extrusion barrel and above the sealing disc, is used to discharge the extruded plastic granules into the impurity removal unit.

[0029] The granulation component includes:

[0030] The first extrusion plate is sleeved on the rotating shaft and fixed to the inner wall of the extrusion barrel;

[0031] A switching plate is sleeved on the rotating shaft and located at the lower end of the first extrusion plate;

[0032] The second extrusion plate is sleeved on the rotating shaft and fixedly connected to the inner wall of the extrusion barrel and located at the lower end of the switching plate;

[0033] The first extrusion plate has a first discharge hole for storing plastic powder, the second extrusion plate has a third discharge hole corresponding to the position of the first discharge hole for discharging the formed plastic granules, and the switching plate has a second discharge hole that is staggered with the first discharge hole for controlling the opening and closing of the first discharge hole and the third discharge hole.

[0034] The extrusion unit further includes:

[0035] A switching component is installed on the extrusion barrel and connected to the granulation component to control the granulation state of the granulation component.

[0036] The switching component includes:

[0037] The first transmission wheel is fixed on the rotating shaft and is used to transmit the kinetic energy of the rotating shaft.

[0038] The drive shaft is mounted on the mounting frame on the outside of the extrusion barrel;

[0039] The second transmission wheel is fixed on the transmission shaft and connected to the first transmission wheel via a belt.

[0040] The rotating disc, fixed on the drive shaft, passes through the extrusion barrel, and is provided with intermittent teeth at the position where it is connected to the switching plate;

[0041] The switching plate is provided with teeth at the position where it connects with the intermittent teeth, which mesh with the intermittent teeth.

[0042] The extrusion assembly includes:

[0043] A connecting shaft is fixed on the rotating shaft and located above the granulation assembly;

[0044] The pressure roller, sleeved on the connecting shaft, is used to extrude the plastic powder at the upper end of the granulation assembly.

[0045] The impurity removal unit includes:

[0046] The feeding plate is inclined and set on one side of the discharge port to discharge the formed plastic granules;

[0047] A filter screen, fixed on the feeding plate, is used to filter out powder and residue from the plastic granules;

[0048] A collection frame, located below the filter screen, is used to collect powder residue from plastic granules.

[0049] Compared with the prior art, the beneficial effects of the present invention are:

[0050] 1. This invention integrates multiple processing steps such as material storage, crushing, extrusion and impurity removal into one device. The units work closely together and coordinate with each other. Plastic waste enters from the material storage unit, is crushed by the crushing unit, extruded and granulated by the extrusion unit, and finally discharged after impurity removal by the impurity removal unit. The entire processing flow is smooth and continuous, reducing material transfer and waiting time in intermediate links, significantly improving the overall efficiency of plastic waste recycling and processing, and reducing energy consumption and production costs.

[0051] 2. This invention achieves intermittent discharge by setting up a granulation component. This discharge control method helps to make the plastic granules more compact, reduces the generation of powder residue in the granules, and thus improves the uniformity of the plastic granules, avoiding the problem of loose and unformed plastic granules caused by continuous discharge. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the main structure in one embodiment of the present invention;

[0053] Figure 2 This is a side view of the structure in one embodiment of the present invention;

[0054] Figure 3 This is a top view of the structure in one embodiment of the present invention;

[0055] Figure 4 This is a cross-sectional structural schematic diagram of one embodiment of the present invention;

[0056] Figure 5 This is a schematic diagram of the internal structure of the storage unit in one embodiment of the present invention;

[0057] Figure 6 This is a schematic diagram of the installation position of the extrusion unit in one embodiment of the present invention;

[0058] Figure 7 This is a schematic diagram of the connection between the extrusion component and the granulation component in one embodiment of the present invention;

[0059] Figure 8 This is a schematic diagram of the pulverizing unit in one embodiment of the present invention;

[0060] Figure 9 This is a schematic diagram of the extrusion unit structure in one embodiment of the present invention;

[0061] Figure 10 This is a schematic diagram of the structure of the granulation component exploding in one embodiment of the present invention;

[0062] Figure 11 This is a schematic diagram of the connection between the switching component and the switching plate in one embodiment of the present invention;

[0063] Figure 12 This is a schematic diagram of the connection between the intermittent tooth and the switching plate in one embodiment of the present invention.

[0064] In the diagram: 1. Base; 11. Fixing frame; 2. First motor; 21. Rotating shaft; 3. Material storage unit; 31. Extrusion barrel; 3101. Discharge port; 32. Crushing barrel; 33. Feed hopper; 34. Guide hopper; 35. Mounting frame; 36. Heating box; 4. Crushing unit; 41. Fixing base; 42. Second motor; 43. Crushing shaft; 44. Crushing blade; 5. Collection frame; 6. Impurity removal unit; 61. Feeding plate; 62. Filter screen; 7. Extrusion unit; 71. Granulation assembly; 711. First extrusion plate; 7111, first discharge hole; 712, switching plate; 71201, teeth; 7121, second discharge hole; 713, second extrusion plate; 7131, third discharge hole; 72, extrusion assembly; 721, connecting shaft; 722, pressure roller; 73, material distribution plate; 74, switching assembly; 741, first drive wheel; 742, belt; 743, second drive wheel; 744, drive shaft; 745, rotating disk; 7451, intermittent teeth; 75, sealing disk; 76, guide plate. Detailed Implementation

[0065] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0066] Please see Figure 1-12 This invention provides a technical solution: a multimodal plastic waste recycling, extrusion, and impurity removal device, comprising a base 1, a first motor 2 mounted on the base 1, and a storage unit 3 mounted on the upper end of the base 1 for storing plastic waste. It also includes: a crushing unit 4 mounted on the storage unit 3 for crushing the plastic waste; an extrusion unit 7 mounted inside the storage unit 3, fixed to the first motor 2 and connected to a rotating shaft 21, and located below the crushing unit 4, for extruding the crushed plastic waste into plastic granules; and an impurity removal unit 6 mounted at the discharge port 3101 of the storage unit 3 for filtering impurities from the plastic granules discharged from the discharge port 3101.

[0067] It should be noted that during operation, plastic is fed into the upper part of the storage unit 3, the crushing unit 4 is started to crush the plastic raw material, and the first motor 2 is started to drive the extrusion unit 7 to move, so that the extrusion unit 7 extrudes the crushed plastic powder into shape. The formed plastic granules are discharged from the discharge port 3101 into the impurity removal unit 6 for impurity removal, filtering out the powder residue in the plastic granules. This equipment integrates multiple processing links such as storage, crushing, extrusion and impurity removal into one device. The units work closely together and coordinate with each other. Plastic waste enters from the storage unit 3, is crushed by the crushing unit 4, extruded and granulated by the extrusion unit 7, and finally discharged after impurity removal by the impurity removal unit 6. The entire processing flow is smooth and continuous, reducing material transfer and waiting time in intermediate links, significantly improving the overall efficiency of plastic waste recycling and processing, and reducing energy consumption and production costs.

[0068] In one embodiment, the storage unit 3 includes: an extrusion barrel 31, fixed on a mounting bracket 11 at the upper end of the base 1, for storing plastic waste that needs to be extruded; a crushing barrel 32, disposed at the upper end of the extrusion barrel 31, for storing plastic waste that needs to be crushed; a feeding hopper 33, funnel-shaped and fixed at the upper end of the crushing barrel 32, for storing plastic waste that needs to be crushed; and a guide hopper 34, fixed inside the feeding hopper 33 and with its lower end converging towards the side close to the crushing unit 4, for converging the plastic waste toward the position of the crushing unit 4.

[0069] This design is for reference. Figure 1-6 The extrusion hopper 31 is responsible for storing plastic waste to be extruded, providing a stable raw material reserve for subsequent extrusion processes. The crushing hopper 32 is used to store plastic waste that needs to be crushed, ensuring that the plastic waste reaches the appropriate particle size before entering the extrusion stage. The feed hopper 33 and the guide hopper 34 work together to ensure that the plastic waste enters the crushing hopper 32 smoothly and is accurately guided to the crushing unit 4. This collaborative material storage system makes the entire plastic waste recycling process smoother, reduces equipment downtime caused by poor material storage, and improves overall production efficiency. The feed hopper 33 adopts a funnel-shaped design and is fixed at the top of the crushing hopper 32, which can easily accept plastic waste from various sources. Whether it is manually deposited or transported by conveying equipment, it can easily enter the feed hopper 33. During the process of plastic waste entering the crushing hopper 32 from the feed hopper 33, the guide hopper 34 can accurately guide the plastic waste to the center of the crushing unit 4, so that the plastic waste can be concentrated into the working area of ​​the crushing blades. The crushing unit 4 can crush the plastic waste more evenly and fully.

[0070] In one embodiment, the crushing unit 4 includes: a fixed base 41, which is fixed at equal angles to the outside of the crushing barrel 32; a second motor 42, which is fixed to the fixed base 41; a crushing shaft 43, which is fixed to the power output end of the second motor 42 and passes through the crushing barrel 32 on the other side and is connected to another fixed base 41; and crushing blades 44, which are alternately fixed on the two crushing shafts 43 for crushing plastic waste that falls into the guide hopper 34.

[0071] This design is for reference. Figure 1-5 ,as well as Figure 8 The crushing unit 4 is provided with two sets, which are fixed on both sides of the crushing barrel 32 respectively. The fixing seat 41 is fixed at an equal angle to the outside of the crushing barrel 32, providing a stable and reliable support structure for the entire crushing unit 4. One end of the crushing shaft 43 is fixed to the power output end of the second motor 42, and the other end extends out of the crushing barrel 32 and is rotatably connected to another fixing seat 41. This design of supporting both ends makes the crushing shaft 43 have better rigidity and stability when rotating at high speed, ensuring that the crushing blade 44 can continuously crush the falling plastic raw materials during the working process, thereby improving the crushing efficiency of plastic.

[0072] In one embodiment, the extrusion unit 7 includes: a heating box 36 disposed inside the extrusion barrel 31 for heating the plastic falling into the extrusion barrel 31; a granulation assembly 71 disposed inside the extrusion barrel 31 and connected to the rotating shaft 21 for extruding plastic powder into plastic granules; and an extrusion assembly 72 disposed on the rotating shaft 21 and located at the upper end of the granulation assembly 71 for extruding the plastic granules crushed at the upper part of the granulation assembly 71.

[0073] This design is for reference. Figure 5-7 The heating box 36 is located inside the extrusion barrel 31 and can heat the plastic powder that falls into it. By reasonably controlling the heating temperature and heating time, the plastic gradually softens and melts under suitable conditions to achieve a good plasticization state. This uniform plasticization effect helps the plastic to better fill the granulation component 71 during the subsequent extrusion process, reducing internal pores and defects, thereby producing plastic granules with uniform density and higher strength. When the plasticized plastic enters the granulation component 71, the extrusion component 72 can extrude the plastic into the granulation component 71, and the granulation component 71 can extrude the plastic into the required shape.

[0074] In one embodiment, the extrusion unit 7 further includes a distribution disc 73, which is designed in an umbrella shape and fixed to the top of the rotating shaft 21 for dispersing the crushed plastic powder.

[0075] This design is for reference. Figure 4-6 ,as well as Figure 9-10The umbrella-shaped distribution tray 73 can evenly disperse the crushed plastic powder falling into the extrusion barrel 31. During the falling process, the umbrella-shaped structure causes the powder to spread outwards along its surface, avoiding the powder from accumulating in a certain area. The plastic powder can be fully exposed to the heat generated by the heating box 36, which greatly increases the contact area with the heat source, thereby ensuring that the plastic powder can be heated evenly and quickly reach the appropriate plasticizing temperature, providing stable quality plastic for subsequent extrusion molding processes.

[0076] In one embodiment, the extrusion unit 7 further includes: a sealing disc 75, fixed on the rotating shaft 21, located inside the extrusion barrel 31 and below the granulation assembly 71, for blocking the extruded plastic granules; and a guide plate 76, disposed inside the extrusion barrel 31 and above the sealing disc 75, for discharging the extruded plastic granules into the impurity removal unit 6.

[0077] This design is for reference. Figure 5-7 The sealing disc 75 is fixed on the rotating shaft 21 and located below the granulation component 71. It can effectively block the top of the sealing disc 75. When the plastic granules at the top of the sealing disc 75 come into contact with the guide plate 76, the guide plate 76 can accurately control the flow direction of the extruded plastic granules, so that they are evenly and orderly discharged into the impurity removal unit 6. This helps the subsequent impurity removal process, ensuring that the plastic granules can automatically enter the impurity removal unit 6 for impurity removal treatment, further improving the quality of the plastic granules and meeting the requirements of different customers for the quality of recycled plastics.

[0078] In one embodiment, the granulation assembly 71 includes: a first extrusion plate 711, sleeved on the rotating shaft 21 and fixed to the inner wall of the extrusion barrel 31; a switching plate 712, sleeved on the rotating shaft 21 and located at the lower end of the first extrusion plate 711; and a second extrusion plate 713, sleeved on the rotating shaft 21 and fixedly connected to the inner wall of the extrusion barrel 31 and located at the lower end of the switching plate 712. The first extrusion plate 711 has a first discharge hole 7111 for storing plastic powder, the second extrusion plate 713 has a third discharge hole 7131 corresponding to the position of the first discharge hole 7111 for discharging the formed plastic granules, and the switching plate 712 has a second discharge hole 7121 interleaved with the first discharge hole 7111 for controlling the opening and closing of the first discharge hole 7111 and the third discharge hole 7131.

[0079] This design is for reference. Figure 9-12After the plastic in a plasticized state enters the first extrusion plate 711, it is pressed into the first discharge hole 7111 by the extrusion assembly 72. At this time, the switching plate 712 seals the bottom of the first discharge hole 7111, allowing the plastic granules to be fully extruded and formed inside the first discharge hole 7111. When the first discharge hole 7111 is full of plastic granules, the switching plate 712 rotates, connecting the first discharge hole 7111 with the third discharge hole 7131. The formed granules are discharged from the third discharge hole 7131. After the plastic granules are discharged, the switching plate 712 connects the first discharge hole 7111 with the third discharge hole 7131. The lower end of the first discharge hole 7111 is sealed again, and then the plastic enters the first discharge hole 7111 for the next set of extrusion molding. When the particles inside the first discharge hole 7111 are full again, the switching plate 712 opens the channel between the first discharge hole 7111 and the third discharge hole 7131 again. This process is repeated to extrude and mold the plastic particles, achieving intermittent discharge. This discharge control method helps the plastic particles to be more compact, reduces the generation of powder residue in the particles, and thus improves the uniformity of the plastic particles, avoiding the problem of loose and unformed plastic particles caused by continuous discharge.

[0080] In one embodiment, the extrusion unit 7 further includes: a switching component 74, disposed on the extrusion barrel 31 and connected to the granulation component 71, for controlling the granulation state of the granulation component 71; the switching component 74 includes: a first transmission wheel 741, fixed on the rotating shaft 21, for transmitting the kinetic energy of the rotating shaft 21; a transmission shaft 744, disposed on the mounting frame 35 on the outside of the extrusion barrel 31; a second transmission wheel 743, fixed on the transmission shaft 744 and connected to the first transmission wheel 741 via a belt 742; a rotating disk 745, fixed on the transmission shaft 744, passing through the extrusion barrel 31 and having intermittent teeth 7451 at the position where it is connected to the switching plate 712; and teeth 71201 that mesh with the intermittent teeth 7451 at the position where the switching plate 712 is connected to the intermittent teeth 7451.

[0081] This design is for reference. Figure 4-7 ,as well as Figure 9-11 The first transmission wheel 741 is fixed on the rotating shaft 21, which can stably receive the kinetic energy of the rotating shaft 21 and transmit the power to the second transmission wheel 743 through the belt 742, thereby driving the transmission shaft 744 and the rotating disk 745 to rotate. The intermittent teeth 7451 on the rotating disk 745 mesh with the teeth 71201 on the switching plate 712. This design allows the intermittent teeth 7451 to interact with the teeth 71201 every time the rotating disk 745 rotates a certain angle, driving the switching plate 712 to rotate precisely intermittently, thereby accurately controlling the opening and closing of the first discharge hole 7111 and the third discharge hole 7131 in the granulation component 71, realizing the intermittent discharge of plastic powder and the molding of plastic granules.

[0082] In one embodiment, the extrusion assembly 72 includes: a connecting shaft 721, fixed on the rotating shaft 21 and located above the granulation assembly 71; and a pressure roller 722, sleeved on the connecting shaft 721, for extruding the plastic powder at the upper end of the granulation assembly 71.

[0083] This design is for reference. Figure 5-7 ,as well as Figure 9 The connecting shaft 721 is fixed on the rotating shaft 21 and can rotate stably with the rotating shaft 21, driving the pressure roller 722 sleeved on it to make a circular motion. When the pressure roller 722 squeezes the plastic powder at the upper end of the granulation component 71, its continuous rolling action can apply uniform and continuous pressure to the plastic powder. This uniform squeezing action can make the plastic powder better fill the first discharge hole 7111 of the granulation component 71, ensuring that the density of the formed plastic granules is uniform, reducing defects such as pores and looseness inside the granules, thereby significantly improving the quality and strength of the plastic granules.

[0084] In one embodiment, the impurity removal unit 6 includes: a feeding plate 61, which is inclinedly disposed on one side of the discharge port 3101 for discharging the formed plastic granules; a filter screen 62, which is fixed on the feeding plate 61 for filtering the powder residue in the plastic granules; and a collection frame 5, which is disposed below the filter screen 62 for collecting the powder residue in the plastic granules.

[0085] This design is for reference. Figure 1-5 The inclined feeding plate 61 provides a natural downward channel for the plastic granules. When the formed plastic granules flow out of the discharge port 3101 and fall onto the feeding plate 61, they will slide down along the feeding plate 61 under the action of gravity. During this process, the filter screen 62 fixed on the feeding plate 61 can fully exert its filtering function to effectively filter the powder residue mixed in the plastic granules. Then, the falling powder residue from the filter screen 62 is collected into the collection frame 5, and the powder residue inside the collection frame 5 can be recycled and reused.

[0086] Furthermore, if the embodiments involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relation to the specification. The significance or implied number of the indicated technical features is not specified. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

Claims

1. A multimodal plastic waste recycling and extrusion device, comprising a base (1), a first motor (2) mounted on the base (1), and a storage unit (3) mounted on the upper end of the base (1) for storing plastic waste, characterized in that, Also includes: A crushing unit (4) is installed on the storage unit (3) for crushing plastic waste; The extrusion unit (7) is located inside the storage unit (3), fixed to the first motor (2) on the rotating shaft (21) and located below the crushing unit (4), and is used to extrude the crushed plastic waste into plastic granules. The impurity removal unit (6) is located at the outlet (3101) of the storage unit (3) and is used to filter the impurities in the plastic particles discharged from the outlet (3101). The storage unit (3) includes: The extrusion bucket (31) is fixed on the bracket (11) at the upper end of the base (1) and is used to store plastic waste that needs to be extruded. A crushing bucket (32) is located at the upper end of the extrusion bucket (31) and is used to store plastic waste that needs to be crushed; The feed hopper (33), which is funnel-shaped, is fixed at the top of the crushing barrel (32) and is used to store plastic waste that needs to be crushed; The guide hopper (34) is fixed inside the feed hopper (33) and its lower end is arranged to converge towards the side of the crushing unit (4) to gather plastic waste towards the position of the crushing unit (4); The extrusion unit (7) includes: A heating chamber (36) is provided inside the extrusion barrel (31) for heating the plastic that falls into the extrusion barrel (31); The granulation assembly (71), disposed inside the extrusion barrel (31) and connected to the rotating shaft (21), is used to extrude plastic powder into plastic granules; An extrusion assembly (72) is disposed on the rotating shaft (21) and located at the upper end of the granulation assembly (71) for extruding the plastic granules crushed at the upper part of the granulation assembly (71); The granulation component (71) includes: The first extrusion plate (711) is sleeved on the rotating shaft (21) and fixed on the inner wall of the extrusion barrel (31); The switching plate (712) is sleeved on the rotating shaft (21) and located at the lower end of the first extrusion plate (711); The second extrusion plate (713) is sleeved on the rotating shaft (21) and fixedly connected to the inner wall of the extrusion barrel (31) and located at the lower end of the switching plate (712); The first extrusion plate (711) is provided with a first discharge hole (7111) for storing plastic powder, and the second extrusion plate (713) is provided with a third discharge hole (7131) corresponding to the position of the first discharge hole (7111) for discharging the formed plastic granules. The switching plate (712) is provided with a second discharge hole (7121) interleaved with the first discharge hole (7111) for controlling the opening and closing of the first discharge hole (7111) and the third discharge hole (7131). The extrusion unit (7) also includes; A switching component (74) is disposed on the extrusion barrel (31) and connected to the granulation component (71) for controlling the granulation state of the granulation component (71); The switching component (74) includes: The first transmission wheel (741) is fixed on the rotating shaft (21) and is used to transmit the kinetic energy of the rotating shaft (21); The drive shaft (744) is mounted on the mounting frame (35) on the outside of the extrusion barrel (31); The second transmission wheel (743) is fixed on the transmission shaft (744) and connected to the first transmission wheel (741) via a belt (742); The rotating disk (745) is fixed on the transmission shaft (744), passes through the extrusion barrel (31), and is provided with intermittent teeth (7451) at the position where it is connected to the switching plate (712). The switching plate (712) is provided with teeth (71201) that mesh with the intermittent teeth (7451) at the position where it connects with the intermittent teeth (7451). The extrusion assembly (72) includes: A connecting shaft (721) is fixed on the rotating shaft (21) and located above the granulation assembly (71); The pressure roller (722) is sleeved on the connecting shaft (721) and is used to extrude the plastic powder at the upper end of the granulation assembly (71).

2. The multimodal plastic waste recycling and extrusion equipment according to claim 1, characterized in that: The crushing unit (4) includes: The fixing seat (41) is fixed at equal angles to the outside of the crushing barrel (32); The second motor (42) is fixed on the fixed base (41); The crushing shaft (43) is fixed to the power output end of the second motor (42) and passes through the crushing barrel (32) on the other side and is connected to another fixed seat (41); Crusher blades (44) are alternately fixed on the two crushing shafts (43) for crushing plastic waste that falls into the feed hopper (34).

3. The multimodal plastic waste recycling and extrusion equipment according to claim 1, characterized in that: The extrusion unit (7) further includes: A sealing disc (75), fixed on the rotating shaft (21), is located inside the extrusion barrel (31) and below the granulation assembly (71) to block the extruded plastic granules. The guide plate (76) is located inside the extrusion barrel (31) and above the sealing disc (75) for discharging the extruded plastic granules into the impurity removal unit (6).

4. The multimodal plastic waste recycling extrusion and impurity removal equipment according to claim 1, characterized in that: The extrusion unit (7) further includes: The material distribution disc (73), with an umbrella-shaped structure, is fixed to the top of the rotating shaft (21) and is used to disperse the crushed plastic powder.

5. The multimodal plastic waste recycling and extrusion equipment according to claim 1, characterized in that: The impurity removal unit (6) includes: The feeding plate (61) is inclined and set on one side of the discharge port (3101) for discharging the formed plastic granules; A filter screen (62) is fixed on the feed plate (61) and is used to filter the powder residue in the plastic granules; The collection box (5) is located below the filter screen (62) and is used to collect the powder residue in the plastic particles.

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