Modified plastic regenerated master batch granulating device

Abstract

The invention belongs to the technical field of waste plastic recycling and reusing, and particularly relates to a modified plastic regenerated master batch granulating device which comprises an equipment body, an outer side protection box is fixedly installed on the upper end face of the equipment body, a secondary crushing device is further fixedly installed on the equipment body, and a power device is further fixedly installed on one side of the equipment body. And a plastic particle collecting device is further fixedly mounted at one end of the equipment main body. By means of the modifier uniformizing rods arranged on the screw body and the screw blades with the mixing holes, an added modifier is sheared and dispersed for multiple times in the plastic melting process. The mixing mode of combining machinery with fluid dynamics ensures that the modifier and the molten plastic are fully and uniformly mixed, and the problem of master batch performance defects caused by non-uniform dispersion is fundamentally solved.

Description

Technical Field

[0001] This invention relates to the field of waste plastic recycling technology, specifically to a granulation device for modified plastic recycled masterbatch. Background Technology

[0002] Plastic recycling and granulation is a crucial step in achieving resource recycling, and the performance of its core equipment, the granulator, directly determines the quality and value of recycled plastics. Currently, the industry widely uses granulation equipment based on screw extruders; however, in actual production, several persistent technical challenges have long affected production continuity, product quality, and energy consumption.

[0003] First, frequent clogging at the feed inlet severely disrupts production continuity. The recycled plastic fragments after crushing and washing are highly irregular in shape and uneven in size, and are particularly prone to mixing with long strips or flakes. When these materials enter traditional vertical or inclined feed inlets, they easily overlap and hook each other, forming "bridging" or "blockage" phenomena. This problem not only leads to unstable feeding but also requires frequent shutdowns for manual cleaning, greatly limiting the automation and continuous operation of the equipment and becoming a major bottleneck for improving production efficiency.

[0004] Secondly, uneven dispersion of modifiers hinders product performance improvement. Various modifiers are often added to improve the properties of recycled plastics. However, in traditional single-screw or twin-screw extruders with limited mixing capacity, modifiers are usually added together with the main feedstock through the main inlet. This method makes it difficult for the modifiers to achieve sufficient and uniform shearing and dispersion in the melt, easily forming "fisheye" or agglomeration points. Ultimately, this results in large performance fluctuations in the prepared recycled masterbatch, poor modification effects, and an inability to meet the requirements of high-quality applications.

[0005] Furthermore, uneven heating of the material affects melt quality and energy consumption. Existing equipment often relies on heating coils outside the barrel, with heat transferred from the outside in. For plastics with poor thermal conductivity, this method easily leads to overheating or even degradation of the material near the barrel, while the material in the center fails to melt completely. This radial temperature gradient results in uneven melt viscosity, unstable subsequent extrusion, poor product quality, and energy waste due to low thermal efficiency.

[0006] In summary, existing plastic pelletizers suffer from significant deficiencies in feeding reliability, mixing uniformity, and heat transfer efficiency. These three aspects mutually hinder each other, collectively limiting the development of recycled plastics towards higher quality, higher efficiency, and lower energy consumption. Therefore, there is an urgent need in this field for an innovative pelletizing device that can systematically solve the above-mentioned problems from a structural perspective. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a modified plastic recycled masterbatch granulation device, which solves the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a modified plastic recycled masterbatch granulation device and method, comprising a main body of equipment, an outer protective box fixedly installed on the upper end face of the main body of equipment, a secondary crushing device fixedly installed on the main body of equipment, a power device fixedly installed on one side of the main body of equipment, and a plastic particle collection device fixedly installed at one end of the main body of equipment. The main body of the equipment includes a support frame for support, and a plurality of support frames are fixedly installed on the upper end face of the support frame. A plastic melting device is fixedly installed on the plurality of support frames, and a power device is fixedly installed at one end of the plastic melting device. The power unit includes a granulation drive motor fixedly installed inside the support, and a transmission component is also fixedly installed on the upper surface of the support. The granulation drive motor is used to drive the transmission component.

[0009] As a preferred embodiment of the present invention, the plastic melting device includes an outer cylinder fixedly connected to a support frame. A feed inlet is fixedly installed at one end of the outer cylinder, and a plastic granule extrusion outlet is fixedly installed at the other end of the outer cylinder. A modifier injection port is also provided on the outer cylinder. Several heaters are also sleeved on the outside of the outer cylinder. Each heater is fixedly connected to a heating fan. The heating fan is also fixedly connected to the support frame. An extrusion screw granulation device is also encased inside the outer cylinder. A heat transfer pipe is encased inside the extrusion screw granulation device. A small support A is rotatably installed at the end of the heat transfer pipe away from the feed inlet.

[0010] As a preferred embodiment of the present invention, the heat transfer pipe includes a heat conduction inner pipe rotatably connected to the small support A, a heat conduction outer pipe is provided on the outside of the heat conduction inner pipe, the heat conduction inner pipe and the heat conduction outer pipe are connected in a closed manner, the heat conduction inner pipe is fixedly connected to the water inlet, and the heat conduction outer pipe is fixedly connected to the water outlet. The ends of the inner heat conduction tube and the outer heat conduction tube furthest from the small support A are configured to be connected.

[0011] As a preferred embodiment of the present invention, the plastic granule extrusion outlet includes an upper support fixedly installed with the outer cylinder. An installation position is provided inside the upper support. A perforated plate is fixedly installed on one side of the installation position. A bushing is also fixedly installed on the outer side of the perforated plate. A granulator head is fixedly installed on the other side of the upper support. A flow divider cone is fixedly installed on the inner side of the granulator head. The flow divider cone extends into the upper support.

[0012] As a preferred technical solution of the present invention, the granulator head is further provided with a plurality of extrusion holes, and the plurality of extrusion holes are disposed on the outside of the flow divider cone; The upper support and the diverter cone are not completely in contact.

[0013] As a preferred embodiment of the present invention, the extrusion screw granulation device includes a drive connection component that is mechanically connected to the transmission component. A screw body is also fixedly installed on one side of the drive connection component. A heat transfer pipe is installed inside the drive connection component and the screw body. Several modifier homogenizing rods are fixedly installed in the middle section of the outer side of the screw body. Screw blades are also fixedly installed on the outer side of the screw body. Several mixing holes for easy mixing are opened on the screw blades. Several mixing grooves are provided on the screw body.

[0014] As a preferred embodiment of the present invention, the secondary crushing device includes a crushing component fixedly connected to the feed inlet, a transmission device is installed on one side of the crushing component, a drive motor is connected to one end of the transmission device, and an anti-jamming material trough is fixedly installed on the upper surface of the crushing component. The crushing component includes an upper feed inlet fixedly connected to an anti-jamming material trough, and a crushing device mounting component is fixedly installed on the lower end face of the upper feed inlet. The crushing device mounting component is fixedly installed inside the crushing device mounting component. A belt is installed on one side of the crushing device, and a motor drive wheel is installed at one end of the belt. A pulley is fixedly installed on the outside of the belt and the motor drive wheel for protection. The motor drive wheel is fixedly connected to the crushing motor, and a motor mounting base plate is fixedly installed on the lower end face of the crushing motor. The motor mounting base plate is fixedly connected to the outer protective box.

[0015] As a preferred embodiment of the present invention, the crushing device includes a crushing and leaking plate installed inside the crushing device mounting component, and the crushing device mounting component is further provided with a mounting groove, and a crushing tooth assembly is installed in the mounting groove.

[0016] As a preferred embodiment of the present invention, the crushing tooth assembly includes a fixed mounting component fixedly installed at the groove. Drive wheel A and drive wheel B are fixedly installed at both ends of the fixed mounting component, and drive wheel B is connected to the crushing device mounting component for transmission. A plurality of crushing teeth are sleeved on the fixed mounting component, and a plurality of crushing tooth plates are installed on the crushing teeth.

[0017] As a preferred embodiment of the present invention, the plastic particle collecting device includes a bracket fixedly connected to an outer protective box, a plastic particle cutting device fixedly installed on the bracket, a connecting pipe fixedly installed on the lower end face of the plastic particle cutting device, a conveying pipe fixedly installed on the lower end face of the connecting pipe, a cooling and conveying fan fixedly installed at one end of the conveying pipe, and a plastic particle collecting device fixedly installed at the other end of the conveying pipe. The plastic granule cutting device includes a plastic granule cutting blade fixedly installed inside, which is driven by a motor.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention utilizes a modifier-uniforming rod mounted on the screw body and screw blades with mixing holes to perform multiple shearing and dispersion operations on the added modifier during the plastic melting process. This mixing method, combining mechanical and fluid dynamics, ensures thorough and uniform mixing of the modifier and the molten plastic, fundamentally solving the problem of masterbatch performance defects caused by uneven dispersion.

[0019] 2. This invention directly fixes the secondary crushing device to the main body of the equipment and directly connects the upper feed inlet of the crushing component with the feed inlet of the plastic melting device, forming a continuous production line of crushing-melting-granulation. This design eliminates the transfer and waiting time of materials between processes, achieving seamless connection from raw materials to finished products, thereby significantly accelerating the overall production pace and increasing the output per unit time.

[0020] 3. This invention integrates the power unit, plastic melting unit, secondary crushing unit, and plastic pellet collection unit into a single main body and its support frame, forming a highly integrated whole. This vertical or compact layout greatly optimizes space utilization and reduces the equipment's footprint in the factory, making it particularly suitable for production sites with limited space.

[0021] 4. This invention includes a secondary crushing device driven by a crushing motor installed before the feed inlet of the plastic melting device. The internal crushing tooth assembly can pre-crush large or easily entangled plastic raw materials. This design solves the problem of bridging and blockage that easily occurs at the feed inlet when large or long strips of raw materials enter directly, ensuring smooth feeding and continuous production.

[0022] 5. This invention, on the one hand, combines a heater surrounding the outer cylinder with a heating fan to achieve rapid and efficient heating and melting of the material; on the other hand, at the granulation end, the airflow generated by the cooling and conveying fans not only instantly cools the cut granules but also drives them at high speed into the collection device, simultaneously completing the cooling and conveying steps. This efficient utilization of thermal energy and external force reduces energy and time losses in the production process, accelerating production speed from multiple aspects. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of a secondary crushing device; Figure 3 This is a schematic diagram of an explosion of a secondary crushing device; Figure 4 This is a schematic diagram of the crushing device; Figure 5 This is a schematic diagram of an explosion of a crushing device; Figure 6 This is a schematic diagram of the internal structure of the present invention; Figure 7 This is a schematic diagram of a plastic melting device; Figure 8 for Figure 7 Enlarged view of point A; Figure 9 This is a cross-sectional view of the structure of the present invention; Figure 10 This is a schematic diagram of the plastic granule extrusion outlet. Figure 11 This is a schematic diagram of an extrusion screw granulation device; Figure 12 for Figure 11 Enlarged view at point B; Figure 13 This is a schematic diagram of a plastic pellet collection device; Figure 14 for Figure 13 Enlarged view of point C.

[0024] In the picture: 1. Power unit; 11. Transmission components; 12. Granulation drive motor; 2. External protective enclosure; 3. Plastic pellet collecting device; 31. Plastic pellet cutting device; 311. Plastic pellet cutting blade; 32. Plastic pellet collecting device; 33. Cooling and conveying fan; 34. Conveying pipe; 35. Connecting pipe; 36. Support frame; 4. Secondary crushing device; 41. Anti-jamming material trough; 42. Crushing component; 421. Upper feed inlet; 422. Crushing device mounting components; 423. Crushing device; 4232. Crushing and conveying plate; 4231, Crushing gear assembly; 42311, Crushing gear; 42312, Drive wheel A; 42313, Crushing gear plate; 42314, Drive wheel B; 42315, Fixed mounting components; 43. Drive motor; 431. Crushing motor; 432. Motor mounting base plate; 44. Transmission device; 441. Pulley protection; 442. Belt; 443. Motor drive wheel; 5. Main body of the equipment; 51. Support frame; 52. Plastic melting device; 521. Small support A; 524. Feed inlet; 525. Outer cylinder; 526. Modifier filling port; 528. Heating fan; 529. Heater; 522. Heat transfer pipe; 5221. Heat conduction outer pipe; 5222. Heat conduction inner pipe; 5223. Water outlet; 5224. Water inlet; 523. Extrusion screw granulation device; 5231. Drive connection component; 5232. Screw body; 5233. Modifier uniform rod; 5234. Screw blade; 527. Plastic granule extrusion outlet; 5271. Granulator head; 5272. Diverter cone; 5273. Upper support; 5274. Perforated plate; 5275. Bushing; 53. Support frame. Detailed Implementation

[0025] 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. Example

[0026] Please see Figure 1-14 The present invention provides the following technical solution: a modified plastic recycled masterbatch granulation device and method, including a main body 5, an outer protective box 2 fixedly installed on the upper end face of the main body 5, a secondary crushing device 4 fixedly installed on the main body 5, a power device 1 fixedly installed on one side of the main body 5, and a plastic particle collection device 3 fixedly installed at one end of the main body 5. The main body of the equipment 5 includes a support frame 51 for support. Several support frames 53 are fixedly installed on the upper surface of the support frame 51. A plastic melting device 52 is fixedly installed on the several support frames 53. A power device 1 is also fixedly installed at one end of the plastic melting device 52. The power unit 1 includes a granulation drive motor 12 fixedly installed inside the bracket 51. A transmission component 11 is also fixedly installed on the upper surface of the bracket 51. The granulation drive motor 12 is used to drive the transmission component 11.

[0027] In this embodiment, the support 51 of the main body 5 serves as the base of the entire device, and the support frame 53 provides stable support for the plastic melting device 52. The granulation drive motor 12 of the power unit 1 is fixed inside the support 51, saving space and lowering the center of gravity. Its output power is transmitted to the subsequent granulation mechanism through the transmission component 11 fixedly installed above, forming the core drive source of the device and ensuring stable and efficient power transmission.

[0028] Specifically, the plastic melting device 52 includes an outer cylinder 525 fixedly connected to a support frame 53. A feed inlet 524 is fixedly installed at one end of the outer cylinder 525, and a plastic granule extrusion outlet 527 is fixedly installed at the other end of the outer cylinder 525. A modifier injection port 526 is also provided on the outer cylinder 525. Several heaters 529 are also sleeved on the outside of the outer cylinder 525. Each heater 529 is fixedly connected to a heating fan 528. The heating fan 528 is also fixedly connected to a bracket 51. An extrusion screw granulation device 523 is also enclosed inside the outer cylinder 525. A heat transfer pipe 522 is enclosed inside the extrusion screw granulation device 523. A small bracket A521 is rotatably installed at the end of the heat transfer pipe 522 away from the feed inlet 524.

[0029] In this embodiment, the plastic melting device 52 is crucial for achieving plastic melting, mixing, and conveying. The outer cylinder 525 supports all internal components via a fixed connection. A heater 529, fitted on its outer side, is fixedly connected to a heating fan 528, forming a forced convection heating system to achieve rapid and uniform heating of the material. The internal extrusion screw granulation device 523 is responsible for conveying and extruding the material, while its internally encased heat transfer pipes 522 are positioned via a rotatably connected small bracket A521, providing precise temperature control for the material and ensuring effective melting.

[0030] Specifically, the heat transfer pipe 522 includes a heat conduction inner pipe 5222 rotatably connected to the small support A521, a heat conduction outer pipe 5221 is provided on the outside of the heat conduction inner pipe 5222, the heat conduction inner pipe 5222 and the heat conduction outer pipe 5221 are connected in a closed manner, the heat conduction inner pipe 5222 is fixedly connected to the water inlet 5224, and the heat conduction outer pipe 5221 is fixedly connected to the water outlet 5223; The ends of the heat conduction inner tube 5222 and the heat conduction outer tube 5221 that are away from the small support A521 are set to be connected.

[0031] In this embodiment, the heat transfer pipe 522 forms a closed circulating water circuit. The cooling medium enters the inner heat conduction pipe 5222 through the inlet 5224, flows to the far end, enters the outer heat conduction pipe 5221 through a connection mode, and finally flows out through the outlet 5223. This counter-current design of "inner in and outer out", in conjunction with the rotating bracket A521, can efficiently remove the frictional heat generated by the screw rotation, prevent the material from overheating and degrading, and accurately control the melt temperature, ensuring the stability of product quality.

[0032] Specifically, the plastic granule extrusion outlet 527 includes an upper support 5273 fixedly installed with the outer cylinder 525. An installation position is provided inside the upper support 5273. A perforated plate 5274 is fixedly installed on one side of the installation position. A bushing 5275 is also fixedly installed on the outer side of the perforated plate 5274. A granulator head 5271 is fixedly installed on the other side of the upper support 5273. A flow divider cone 5272 is fixedly installed on the inner side of the granulator head 5271. The flow divider cone 5272 extends into the upper support 5273.

[0033] In this embodiment, the plastic pellet extrusion outlet 527 is a key component in the molding process. The upper support 5273 is fixedly connected to the outer cylinder 525, providing support for the internal components. The perforated plate 5274 and bushing 5275, fixedly installed inside, work together to filter impurities from the molten plastic and establish the necessary extrusion back pressure, ensuring material compaction. The pelletizing head 5271, fixedly installed at the front end, and its internally extending flow divider cone 5272, evenly distribute the high-pressure melt to each extrusion orifice, ensuring uniform and stable output and laying the foundation for subsequent pelletizing.

[0034] Specifically, the granulator head 5271 is also provided with several extrusion holes, which are located on the outside of the flow divider cone 5272; The upper support 5273 and the diverter cone 5272 are not completely in contact.

[0035] In this embodiment, the flow divider cone 5272 and the upper support 5273 are not completely fitted together, forming a pressure equalization chamber. This design allows the high-pressure melt delivered from the screw to be buffered and redistributed within this space, ensuring that the pressure is evenly applied to the entire end face of the pelletizing head 5271. As a result, the plastic melt strips extruded from the various extrusion holes located outside the flow divider cone 5272 have a highly consistent diameter and flow rate, effectively avoiding uneven discharge, strip breakage, or hole blockage, directly improving the granulation yield and efficiency.

[0036] Specifically, the extrusion screw granulation device 523 includes a drive connection component 5231 that is mechanically connected to the transmission component 11. A screw body 5232 is also fixedly installed on one side of the drive connection component 5231. A heat transfer pipe 522 is installed inside the drive connection component 5231 and the screw body 5232. Several modifier uniform rods 5233 are fixedly installed in the middle section of the outer side of the screw body 5232. Screw blades 5234 are also fixedly installed on the outer side of the screw body 5232. Several mixing holes for easy mixing are opened on the screw blades 5234. Several mixing grooves are provided on the screw body 5232.

[0037] In this embodiment, the extrusion screw granulation device 523 is the core for realizing conveying, mixing, and homogenization. The drive connection component 5231 and the transmission component 11 mechanically cooperate to efficiently transmit power to the screw body 5232, which is fixedly installed as an integral part. The screw blades 5234 are responsible for conveying and initially shearing the material, and the mixing holes opened on them cooperate with the mixing grooves on the screw body 5232 to continuously divide and reorganize the material flow. In particular, the modifier homogenizing rod 5233, which is fixedly installed in the middle section, can perform strong mechanical shearing and dispersion on the modifier added from the modifier injection port 526, ensuring that the modifier and the molten plastic achieve molecular-level uniform mixing in both the axial and radial directions, which greatly improves the product performance of the recycled masterbatch.

[0038] Specifically, the secondary crushing device 4 includes a crushing component 42 fixedly connected to the feed inlet 524, a transmission device 44 installed on one side of the crushing component 42, a drive motor 43 connected to one end of the transmission device 44, and an anti-jamming material trough 41 fixedly installed on the upper end face of the crushing component 42. The crushing component 42 includes an upper feed inlet 421 fixedly connected to the anti-jamming material trough 41. A crushing device mounting component 422 is fixedly installed on the lower end face of the upper feed inlet 421. A crushing device 423 is fixedly installed inside the crushing device mounting component 422. A belt 442 is installed on one side of the crushing device 423, and a motor drive wheel 443 is installed at one end of the belt 442. A pulley guard 441 is fixedly installed on the outside of the belt 442 and the motor drive wheel 443. The motor drive wheel 443 is fixedly connected to the crushing motor 431. The motor mounting base plate 432 is fixedly installed on the lower end face of the crushing motor 431. The motor mounting base plate 432 is fixedly connected to the outer protective box 2.

[0039] In this embodiment, the secondary crushing device 4 is directly and fixedly connected to the feed inlet 524, forming a continuous pretreatment unit. The anti-jamming material chute 41, fixedly installed at the top, guides large pieces of material smoothly into the feed. Power is provided by the crushing motor 431, fixedly installed on the motor mounting base plate 432, and transmitted to the crushing device 423 via a transmission device 44 consisting of a fixedly connected motor drive wheel 443 and a belt 442. The entire transmission system is protected by a fixedly installed pulley guard 441, ensuring safe operation. This design pre-crushes large-volume raw materials into uniformly sized small pieces, fundamentally preventing blockage of the main feed inlet 524 and ensuring smooth upstream material supply.

[0040] Specifically, the crushing device 423 includes a crushing discharge plate 4232 installed inside the crushing device mounting component 422. The crushing device mounting component 422 is also provided with a mounting groove, and a crushing tooth assembly 4231 is installed in the mounting groove.

[0041] In this embodiment, the crushing device 423 is the core of the crushing function. The crushing tooth assembly 4231 is fixedly installed in the mounting groove and is responsible for tearing, squeezing and shearing the falling material. The crushing discharge plate 4232 installed below it inside the crushing device mounting component 422 has both support and screening functions: it ensures that the material is fully crushed to the qualified size before it is allowed to pass through, and the unqualified large pieces of material will continue to remain in the crushing chamber for processing, thereby strictly ensuring that the particle size of the material entering the melting system is uniform, creating the preconditions for a stable melting and granulation process.

[0042] Specifically, the crushing tooth assembly 4231 includes a fixed mounting component 42315 fixedly installed in the groove. Drive wheels A42312 and B42314 are fixedly installed at both ends of the fixed mounting component 42315, respectively. Drive wheels B42314 are connected to the crushing device mounting component 422 for transmission. A plurality of crushing teeth 42311 are sleeved on the fixed mounting component 42315, and a plurality of crushing tooth plates 42313 are installed on the crushing teeth 42311.

[0043] In this embodiment, the crushing tooth assembly 4231 employs a highly efficient staggered tearing design. The fixed mounting component 42315 serves as the core frame, receiving power from the drive wheels (A and B) at both ends and driving the entire assembly to rotate. Multiple crushing teeth 42311 fitted onto it, along with the crushing tooth plate 42313 fixedly mounted thereon, create a staggered shearing motion during rotation, efficiently tearing and crushing plastic raw materials like scissors. Compared to simple crushing or impact crushing, this design is more efficient, consumes less energy, and can effectively handle soft, easily tangled materials such as plastic films.

[0044] Specifically, the plastic particle collection device 3 includes a bracket 36 fixedly connected to the outer protective box 2. A plastic particle cutting device 31 is fixedly installed on the bracket 36. A connecting pipe 35 is fixedly installed on the lower end face of the plastic particle cutting device 31. A conveying pipe 34 is fixedly installed on the lower end face of the connecting pipe 35. A cooling and conveying fan 33 is installed at one end of the conveying pipe 34. A plastic particle collection device 32 is fixedly installed at the other end of the conveying pipe 34. The plastic pellet cutting device 31 includes a plastic pellet cutting blade 311 fixedly installed inside, which is driven by a motor.

[0045] In this embodiment, the plastic granule collection device 3 integrates and automates the post-granulation process. The plastic granule cutting device 31 is fixed by a bracket 36, and its internal motor-driven plastic granule cutting blade 311 can cut the extruded plastic strip into uniform granules at high speed. The cut granules are then instantly transported to the plastic granule collection device 32 at the end through the fixedly connected connecting pipe 35 and conveying pipe 34, under the action of negative pressure airflow generated by the cooling and conveying fan 33. This design integrates the four functions of granulation, cooling, conveying and collection. The airflow not only greatly accelerates the collection speed and avoids granule accumulation and blockage, but also achieves forced air cooling of high-temperature granules, ensuring the quality of the final product and production efficiency.

[0046] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A granulation device for modified plastic recycled masterbatch, comprising a main body (5), characterized in that: An outer protective box (2) is fixedly installed on the upper surface of the main body of the equipment (5). A secondary crushing device (4) is also fixedly installed on the main body of the equipment (5). A power device (1) is also fixedly installed on one side of the main body of the equipment (5). A plastic particle collection device (3) is also fixedly installed at one end of the main body of the equipment (5). The main body of the equipment (5) includes a support bracket (51) for support. Several support frames (53) are fixedly installed on the upper surface of the support bracket (51). A plastic melting device (52) is fixedly installed on the several support frames (53). A power device (1) is also fixedly installed at one end of the plastic melting device (52). The power unit (1) includes a granulation drive motor (12) fixedly installed inside the bracket (51). A transmission component (11) is also fixedly installed on the upper surface of the bracket (51). The granulation drive motor (12) is used to drive the transmission component (11).

2. The modified plastic recycled masterbatch granulation device according to claim 1, characterized in that: The plastic melting device (52) includes an outer cylinder (525) fixedly connected to a support frame (53). A feed inlet (524) is fixedly installed at one end of the outer cylinder (525), and a plastic granule extrusion outlet (527) is fixedly installed at the other end of the outer cylinder (525). A modifier injection port (526) is also provided on the outer cylinder (525). Several heaters (529) are also sleeved on the outside of the outer cylinder (525). Each heater (529) is fixedly connected to a heating fan (528). The heating fan (528) is also fixedly connected to the bracket (51). An extrusion screw granulation device (523) is also wrapped inside the outer cylinder (525). A heat transfer pipe (522) is wrapped inside the extrusion screw granulation device (523). A small bracket A (521) is rotatably installed at the end of the heat transfer pipe (522) away from the feed inlet (524).

3. The modified plastic recycled masterbatch granulation device according to claim 2, characterized in that: The heat transfer pipe (522) includes a heat conduction inner pipe (5222) rotatably connected to the small support A (521), and a heat conduction outer pipe (5221) is provided on the outside of the heat conduction inner pipe (5222). The heat conduction inner pipe (5222) and the heat conduction outer pipe (5221) are connected in a closed manner. The heat conduction inner pipe (5222) is fixedly connected to the water inlet (5224), and the heat conduction outer pipe (5221) is fixedly connected to the water outlet (5223). The ends of the heat conduction inner tube (5222) and the heat conduction outer tube (5221) that are away from the small support A (521) are configured to be connected.

4. The modified plastic recycled masterbatch granulation device according to claim 2, characterized in that: The plastic granule extrusion outlet (527) includes an upper support (5273) fixedly installed with the outer cylinder (525). An installation position is provided inside the upper support (5273). A perforated plate (5274) is fixedly installed on one side of the installation position. A bushing (5275) is also fixedly installed on the outer side of the perforated plate (5274). A granulator head (5271) is fixedly installed on the other side of the upper support (5273). A flow divider cone (5272) is fixedly installed on the inner side of the granulator head (5271). The flow divider cone (5272) extends into the upper support (5273).

5. The modified plastic recycled masterbatch granulation device according to claim 4, characterized in that: The granulator head (5271) is also provided with a plurality of extrusion holes, which are located on the outside of the flow divider cone (5272); The upper support (5273) and the diverter cone (5272) are not completely in contact.

6. The modified plastic recycled masterbatch granulation device according to claim 2, characterized in that: The extrusion screw granulation device (523) includes a drive connection component (5231) mechanically connected to the transmission component (11). A screw body (5232) is also fixedly installed on one side of the drive connection component (5231). A heat transfer pipe (522) is installed inside the drive connection component (5231) and the screw body (5232). Several modifier uniform rods (5233) are fixedly installed in the middle section of the outer side of the screw body (5232). Screw blades (5234) are also fixedly installed on the outer side of the screw body (5232). Several mixing holes are opened on the screw blades (5234) to facilitate mixing. Several mixing grooves are provided on the screw body (5232).

7. The modified plastic recycled masterbatch granulation device according to claim 1, characterized in that: The secondary crushing device (4) includes a crushing component (42) fixedly connected to the feed inlet (524). A transmission device (44) is installed on one side of the crushing component (42). A drive motor (43) is connected to one end of the transmission device (44). An anti-jamming material trough (41) is fixedly installed on the upper surface of the crushing component (42). The crushing component (42) includes an upper feed port (421) fixedly connected to the anti-jamming material trough (41), and a crushing device mounting component (422) is fixedly installed on the lower end face of the upper feed port (421). A crushing device (423) is fixedly installed inside the crushing device mounting component (422). A belt (442) is installed on one side of the crushing device (423), and a motor drive wheel (443) is installed at one end of the belt (442). A pulley guard (441) is fixedly installed on the outside of the belt (442) and the motor drive wheel (443). The motor drive wheel (443) is fixedly connected to the crushing motor (431), and a motor mounting base plate (432) is fixedly installed on the lower end face of the crushing motor (431). The motor mounting base plate (432) is fixedly connected to the outer protective box (2).

8. The modified plastic recycled masterbatch granulation device according to claim 7, characterized in that: The crushing device (423) includes a crushing discharge plate (4232) installed inside the crushing device mounting component (422). The crushing device mounting component (422) is also provided with a mounting groove, and a crushing tooth assembly (4231) is installed in the mounting groove.

9. A modified plastic recycled masterbatch granulation device according to claim 8, characterized in that: The crushing tooth assembly (4231) includes a fixed mounting component (42315) fixedly installed in the groove. Drive wheel A (42312) and drive wheel B (42314) are fixedly installed at both ends of the fixed mounting component (42315). Drive wheel B (42314) is connected to the crushing device mounting component (422) for transmission. A plurality of crushing teeth (42311) are sleeved on the fixed mounting component (42315). A plurality of crushing tooth plates (42313) are installed on the crushing teeth (42311).

10. A modified plastic recycled masterbatch granulation device according to claim 1, characterized in that: The plastic particle collection device (3) includes a bracket (36) fixedly connected to the outer protective box (2). A plastic particle cutting device (31) is fixedly installed on the bracket (36). A connecting pipe (35) is fixedly installed on the lower end face of the plastic particle cutting device (31). A conveying pipe (34) is fixedly installed on the lower end face of the connecting pipe (35). A cooling and conveying fan (33) is installed at one end of the conveying pipe (34). A plastic particle collection device (32) is fixedly installed at the other end of the conveying pipe (34). The plastic particle cutting device (31) includes a plastic particle cutting blade (311) fixedly installed inside, which is driven by a motor.

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