Plastic adhesive resin granulation device and process

Abstract

The application is a kind of plastic bonding resin granulation device and process, relating to the technical field of granulation equipment, including outer support and feeding hopper, conical pressure pipe, hot conveying pipe and cooling discharge hopper which are sequentially and fixedly arranged from top to bottom; the processing technology of feeding, feeding, heating, material cutting and cooling is vertically distributed, which can not only make the material always sedimentary displacement to the bottom of the hot conveying pipe due to its own weight, but also improve the material homogenization effect and reduce the floor area of the whole equipment; the extrusion hole is annularly distributed on the four sides of the hot conveying pipe, which can improve the area and range of material extrusion, and the rotating shaft drives the ring cutting cylinder to rotate in reverse at a relatively slow differential speed through the planetary gear synchronous belt, so that the L-shaped cutter with detachable installation cuts the strip-shaped melt material extruded from the extrusion hole, which not only has a clever structure, low production cost and high discharge efficiency.

Description

Technical Field

[0001] This invention specifically relates to a plastic bonding resin granulation device and process, and pertains to the field of granulation equipment technology. Background Technology

[0002] In the industrial production of plastic adhesive resin granules, screw extrusion pelletizing equipment is currently the mainstream pelletizing technology. This technology typically uses a horizontally arranged single-screw or twin-screw extrusion mechanism. The raw material is propelled by a simple spiral conveyor and finally extruded into strip-shaped melt through the annular template forming hole at the end of the conveying pipe. For example, in a twin-screw pelletizer and plastic pellet processing technology for plastic pellet processing disclosed in Chinese Patent Publication No. CN113290737B, a feeding motor drives a rotating shaft to rotate, which in turn drives a spiral feeding plate to rotate. The spiral feeding plate delivers the raw material in the feed hopper to the pelletizer, thereby avoiding blockage of the feed pipe and preventing the raw material from entering the pelletizer. The drive motor drives the gears in the gearbox to rotate, which in turn drives the two feeding screws to rotate, thereby extruding and feeding the sol material in the shell.

[0003] However, existing screw conveyors only achieve basic conveying and plasticizing, lacking the ability to simultaneously and efficiently disperse and dynamically pressurize and melt raw materials. Moreover, horizontally laid-out equipment not only occupies a large area, but the material's center of gravity shifts downwards when the horizontal conveying pipe is used for feeding, which is not conducive to sufficient homogenization during the conveying process of the adhesive resin, resulting in component segregation within the granules and affecting the stability of the final product's bonding performance. At the same time, the single-panel extrusion mode on one side of the conveying pipe limits the discharge range and slows production efficiency. Furthermore, the strip-shaped melt after extrusion needs to be cut by an additional rotary blade assembly or underwater pelletizing equipment, increasing equipment production and purchase costs and failing to achieve the effect of multi-cooperative operation. Therefore, it is necessary for our company to provide a plastic adhesive resin granulation device and process to improve the existing technology. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a plastic adhesive resin granulation device and process to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plastic bonding resin granulation device, comprising an outer support and a feed hopper, a conical pressure pipe, a heat conveying pipe, and a cooling discharge hopper, which are sequentially and fixedly connected from top to bottom. Both the cooling discharge hopper and the feed hopper are fixedly connected to the outer support, and a refrigeration unit is installed on one side of the cooling discharge hopper. A horizontal plate is installed on the upper side of the feed hopper, and a rotating shaft is rotatably mounted in the middle of the horizontal plate. The rotating shaft passes through the inner sides of the feed hopper, the conical pressure pipe, and the heat conveying pipe and is located inside the cooling discharge hopper. A drive motor for driving the rotating shaft is installed on the horizontal plate. A matching stirring rod, a conical spiral auger, and a spiral auger are respectively installed on the rotating shaft inside the feed hopper, the conical pressure pipe, and the heat conveying pipe. The rotating shaft is rotated... During operation, the material is simultaneously stirred, dispersed, pressurized, melted, and extruded at high speed. The lower side of the heat conveying pipe has a ring array with multiple extrusion holes connected to the cooling discharge hopper. A ring-cutting cylinder is rotatably fitted onto the lower side of the heat conveying pipe. The side surface of the ring-cutting cylinder has multiple cuts corresponding to the outer periphery of the extrusion holes, and L-shaped cutters are detachably connected to both sides of each cut. The blades of the L-shaped cutters are fitted against the outer surface of the extrusion holes. A planetary gear is rotatably mounted at the bottom of the ring-cutting cylinder. This planetary gear is located inside the ring-cutting cylinder, and the rotating shaft is differentially connected to the ring-cutting cylinder via the planetary gear. When the rotating shaft rotates, the planetary gear synchronously drives the ring-cutting cylinder to rotate differentially, causing the L-shaped cutters on each cut to rotate in a ring along the extrusion holes, thereby circumferentially cutting the material extruded from the corresponding extrusion holes.

[0006] Based on the above technical solution, an electric heating plate is installed on the upper side inside the ring cutting cylinder, the lower side of the heat conveying pipe is located in the cooling discharge hopper, and each extrusion hole is located inside the cooling discharge hopper, which is used to cool the material extruded from the lower side inside the heat conveying pipe and the extrusion hole. A side air hole is opened on one side of the cooling discharge hopper.

[0007] Based on the above technical solution, the L-shaped cutter is locked to the left and right sides of the cut by screws, and the lower side of the cut is an inclined surface. The inner side of the circumferential cutting cylinder is rotatably connected to the lower side of the heat transfer pipe through a bearing.

[0008] Based on the above technical solution, a plurality of dispersing rods are installed in the middle of the stirring rod, and a scraper is installed at the end of the stirring rod, with the scraper in contact with the inner wall of the feed hopper. A shuttle-shaped body is fixed in the middle of the rotating shaft, and a conical spiral auger is fixed on the lower side of the shuttle-shaped body. The pointed top of the shuttle-shaped body is located in the middle of the inner side of the feed hopper, and the shuttle-shaped body is located below the dispersing rods.

[0009] Based on the above technical solution, multiple side fans are disassembled and installed on the outer periphery of the circumferential cutting cylinder, which are staggered from the cutting opening. These side fans are used to improve the lateral rotational flow of cold air inside the cooling discharge hopper. The side fan is located on one side of the air outlet of the refrigeration unit. The side fan structure includes a connecting rod and side fan blades that are locked together by bolts. The side fan blades are vertically rotated and distributed inside the cooling discharge hopper, while one end of the connecting rod is locked to the outside of the circumferential cutting cylinder.

[0010] Based on the above technical solution, the planetary gear structure includes a sun gear, a ring gear, and multiple planetary gears that mesh rotatably between the sun gear and the ring gear. A shaft is rotatably mounted in the middle of the planetary gear and is connected to the upper ring-cutting cylinder through the shaft. A connecting ring is integrally provided on the outer side of the ring gear. The lower side of the connecting ring extends downward and is locked to the ring-cutting cylinder by screws. The sun gear is connected to the rotating shaft.

[0011] Based on the above technical solution, a bottom shaft is installed at the bottom end of the rotating shaft. The bottom shaft is penetrated by the annular cutting cylinder and located in the middle of the cooling discharge hopper. A bottom fan is provided in the middle of the inner side of the cooling discharge hopper. The bottom fan is installed on the bottom shaft, and the diameter of the bottom fan is smaller than the diameter of the annular cutting cylinder. When the rotating shaft rotates, it synchronously drives the bottom fan to blow air upward. A guide cone that is penetrated by the bottom shaft is installed at the bottom of the annular cutting cylinder, and the tip of the guide cone is set towards the bottom fan.

[0012] Based on the above technical solution, a side pusher plate is also installed on the rotating shaft inside the heat transfer pipe. The side pusher plate is located between each extrusion hole, and the end of the side pusher plate is spaced apart from the extrusion hole.

[0013] The document also includes a process method for a plastic adhesive resin granulation device: After the raw material is fed into the hopper, a drive motor drives a rotating shaft. The rotating shaft not only stirs and disperses the raw material in the hopper using a stirring rod, but also rotates a conical spiral auger inside a conical pressure tube, causing the raw material to be spirally extruded, melted, and conveyed downwards. Under the simultaneous conveying of the hot-melting process through the hot-transfer pipe and the inner spiral auger, the material is extruded from a wide-ranging annularly distributed extrusion orifice. Since a ring-cutting cylinder is fitted under the hot-transfer pipe, and the ring-cutting cylinder is connected to the rotating shaft via planetary gears, the ring-cutting cylinder... Simultaneously, the rotating shaft can move in opposite directions at a differential speed, allowing the ring-cutting cylinder to rotate slowly. The material extruded from the extrusion orifice is extruded from the cuts in various directions. As the ring-cutting cylinder rotates, it synchronously drives the L-shaped cutter to ring-cut the material extruded from each cut, allowing the ring-cut material to fall from different directions into the conical pressure tube. Since the lower part of the heat conveying pipe is located inside the cooling discharge hopper, the material has a preliminary condensation effect as it passes through the lower part of the heat conveying pipe. The material extruded from the extrusion orifice corresponding to each cut can also be directly acted upon by the cold air in the cooling discharge hopper to accelerate the solidification of the material.

[0014] By adopting the above technical solution, the present invention has the following advantages:

[0015] This invention arranges the feeding, heating, material cutting, and cooling processes vertically, which not only allows the material to settle and shift towards the bottom of the heat transfer pipe due to its own weight, thus improving the homogenization effect of the material, but also reduces the footprint of the entire equipment.

[0016] The rotating shaft drives the stirring rod, dispersing rod, and scraper inside the feed hopper to rotate, thereby stirring and dispersing the material inside the feed hopper to improve its fluidity. It also scrapes away the raw material adhering to the inner wall of the feed hopper downwards. The rotating shaft drives the synchronous spiral auger and the tapered spiral auger (wider at the top and narrower at the bottom) to rotate, thereby quickly extruding and conveying the raw material from the feed hopper downwards to the upper part of the hot conveying pipe for hot melting. This pressurized conveying method can improve the new melting effect of the raw material, thereby improving the quality of the extruded material. Unlike existing technologies, the extrusion orifices are distributed in a ring on all four sides of the hot conveying pipe, which can increase the area and range of material extrusion. The rotating shaft also drives the ring cutting cylinder to rotate in the opposite direction at a relatively slower differential speed through planetary gears. This allows the L-shaped cutter with detachable cutting end to cut the strip-shaped melt material extruded from the extrusion orifice in a ring shape, while simultaneously cooling and shaping it in the cooling discharge hopper. This ring cutting discharge method is not only ingenious in structure and low in production cost, but also has high discharge efficiency.

[0017] Meanwhile, as the material passes through the lower part of the conical pressurized tube, it undergoes indirect preliminary condensation under the action of the cooling discharge hopper and the refrigeration unit. When the molten material is extruded through the extrusion holes corresponding to each cut, the molten material can be further accelerated to solidify under the direct action of the cold air from the cooling discharge hopper. Furthermore, a side fan installed on the outside of the ring-cutting cylinder rotates within the cooling discharge hopper, improving the rotational flow of the cold air inside and allowing it to cool the extruded material more evenly and thoroughly. A bottom fan is also installed at the bottom of the rotating shaft via a bottom shaft; when this bottom fan rotates, it blows the air upwards, further amplifying the cooling effect on the material being cut by the ring-cutting cylinder under the action of the guide cone at the bottom, thus improving the material's condensation efficiency. Therefore, the same rotating shaft can drive components at different workstations to work collaboratively, greatly improving the equipment's effectiveness and efficiency while reducing production costs and floor space. Attached Figure Description

[0018] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the crescent-shaped pressure tube in the feed hopper of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the cooling discharge hopper of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the circumferential cutting cylinder of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the heat transfer pipe and the annular slit cylinder of the present invention;

[0024] Figure 6 This is an exploded structural diagram of the heat transfer pipe, the annular slit cylinder, and the planetary gear of the present invention;

[0025] Figure 7 For the present invention Figure 6 A structural diagram from another perspective;

[0026] In the diagram: 1. Outer support; 2. Feed hopper; 21. Horizontal plate; 3. Conical pressure pipe; 31. Conical spiral auger; 4. Heat transfer pipe; 41. Extrusion hole; 42. Spiral auger; 43. Side push plate; 44. Electric heating plate; 5. Cooling discharge hopper; 51. Refrigeration unit; 52. Side air hole; 53. Discharge port; 54. Bottom fan; 6. Ring cutting cylinder; 61. Cutting slit; 62. L-shaped cutter; 63. Inner bearing; 7. Drive motor; 71. Rotating shaft; 72. Shuttle body; 73. Stirring rod; 731. Dispersing rod; 732. Scraper; 74. Bottom shaft; 8. Side fan; 81. Connecting rod; 82. Side fan blade; 9. Planetary gear; 91. Sun gear; 92. Planetary pinion; 93. Gear ring; 10. Connecting ring; 11. Guide cone. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] like Figure 1-7As shown in the figure, the present invention provides a technical solution for a plastic adhesive resin granulation device, including an outer support 1 and a feed hopper 2, a conical pressure pipe 3, a heat conveying pipe 4, and a cooling discharge hopper 5, which are connected and fixedly arranged from top to bottom. Both the cooling discharge hopper 5 and the feed hopper 2 are fixedly connected to the outer support 1. A chiller 51 is installed on one side of the cooling discharge hopper 5, which transfers cold air to the cooling discharge hopper 5, simultaneously cooling the components inside the cooling discharge hopper 5 and the extruded material. A horizontal plate 21 is installed on the upper side of the feed hopper 2, and the middle of the horizontal plate 21 rotates... A rotating shaft 71 is dynamically installed, which passes through the inside of the feed hopper 2, the conical pressurizing pipe 3, and the heat conveying pipe 4 and is located inside the cooling discharge hopper 5. A drive motor 7 for driving the rotating shaft 71 is installed on the horizontal plate 21. Matching stirring rods 73, conical augers 31, and augers 42 are respectively installed on the rotating shaft 71 inside the feed hopper 2, the conical pressurizing pipe 3, and the heat conveying pipe 4. Multiple dispersing rods 731 are installed in the middle of the stirring rod 73, and scrapers 732 are installed at the ends of the stirring rods 73, with the scrapers 732 adhering to the inner wall of the feed hopper 2. When the rotating shaft 71 rotates, it simultaneously stirs and disperses the material, pressurizes and melts it, and extrudes it at high speed. The lower side of the heat conveying pipe 4 has a ring array of multiple extrusion holes 41 connected to the cooling discharge hopper 5. A ring-cutting cylinder 6 is rotatably fitted onto the lower side of the heat conveying pipe 4. The side surface of the ring-cutting cylinder 6 has multiple cuts 61 corresponding to the outer periphery of the extrusion holes 41. L-shaped cutters 62 are detachably connected to both sides of the cuts 61 via screws for easy disassembly and replacement. The blades of the L-shaped cutters 62 are fitted against the outer surface of the extrusion holes 41, so that when the ring-cutting cylinder 6 rotates, the L-shaped cutters 62 can... The molten material extruded from the extrusion orifice 41 is cut quickly. To prevent the L-shaped cutter 62 from cutting too fast and causing the material particle size to be too small, a planetary gear 9 is rotatably installed at the bottom of the annular cutting cylinder 6. The planetary gear 9 is located inside the annular cutting cylinder 6, and the rotating shaft 71 is connected to the annular cutting cylinder 6 at a differential speed through the planetary gear 9. When the rotating shaft 71 rotates, the planetary gear 9 synchronously drives the annular cutting cylinder 6 to rotate in the opposite direction at a differential speed, so that the L-shaped cutter 62 on each cut 61 rotates slowly in a ring along the extrusion orifice 41, thereby annularly cutting the material extruded from the extrusion orifice 41 corresponding to the cut 61.

[0029] Among them, the rotating shaft 71 inside the heat transfer pipe 4 is also equipped with a side push plate 43. The side push plate 43 is located between each extrusion hole 41, and the end of the side push plate 43 is spaced apart from the extrusion hole 41. The side push plate 43 rotates in the opposite direction to the annular cutting cylinder 6. In this way, when the side push plate 43 rotates with the rotating shaft 71, it can also strengthen the pushing force towards the extrusion hole 41, which can improve the extrusion effect of the material in the extrusion hole 41.

[0030] Meanwhile, an electric heating plate 44 is installed on the upper side inside the ring cutting cylinder 6, which can improve the heating and melting efficiency of the raw material. The lower side of the heat conveying pipe 4 is located inside the cooling discharge hopper 5, thus forming an effect of upper heating and lower cooling. After the upper part is heated, it can be directly conveyed downwards for preliminary indirect cooling. This cooling is not enough to achieve the molding effect. Each extrusion hole 41 is located inside the cooling discharge hopper 5, so that the material extruded from the extrusion hole 41 can directly contact the cold air for solidification and molding. A side air hole 52 is opened on one side of the cooling discharge hopper 5 to facilitate exhaust.

[0031] To facilitate the assembly and disassembly of the L-shaped cutter 62, the L-shaped cutter 62 is locked to the left and right sides of the cut 61 with screws, and the lower side of the cut 61 is an inclined surface, so that the cut material falls more easily down the inclined surface. The inner side of the ring cutting cylinder 6 is rotatably connected to the lower side of the heat transfer pipe 4 through the bearing 63, which can improve the smoothness of the rotation of the ring cutting cylinder 6 in the heat transfer pipe 4.

[0032] The rotating shaft 71 has a shuttle-shaped body 72 fixed in the middle, and a conical spiral auger 31 is fixed on the lower side of the shuttle-shaped body 72. The top tip of the shuttle-shaped body 72 is located in the middle of the inner side of the feed hopper 2, and the shuttle-shaped body 72 is located below the dispersing bar 731. Therefore, after the material falls into the upper side of the shuttle-shaped body 72, it will be guided to the surrounding areas in all directions, so as to fall more accurately on the conical spiral auger 31, making the feeding of the conical spiral auger 31 more sufficient and stable.

[0033] To improve the lateral rotational flow of cold air within the cooling discharge hopper 5 and ensure that the cold air acts evenly and fully on the components and the material extruded from each extrusion orifice 41, multiple side fans 8 are detachably installed on the outer periphery of the annular cutting cylinder 6, staggered from the cut 61. Each side fan 8 consists of a connecting rod 81 and side fan blades 82, which are bolted together. The side fan blades 82 are vertically rotating within the cooling discharge hopper 5, while one end of the connecting rod 81 is secured to the outside of the annular cutting cylinder 6 with screws, facilitating later disassembly and installation. Furthermore, a bottom shaft 74 is installed at the bottom of the rotating shaft 71, which passes through the annular cutting cylinder 6 and is located at the cooling discharge hopper. In the middle of the hopper 5, a bottom fan 54 is provided on the inner side of the cooling discharge hopper 5. The bottom fan 54 is mounted on the bottom shaft 74, and the diameter of the bottom fan 54 is smaller than the diameter of the ring cutting cylinder 6. When the rotating shaft 71 rotates, it drives the bottom fan 54 to blow air upwards. The bottom of the ring cutting cylinder 6 is equipped with a guide cone 11 that is penetrated by the bottom shaft 74. The tip of the guide cone 11 is set towards the bottom fan 54. In this way, the rotating shaft 71 can also drive the bottom fan 54 to rotate, generating an upward airflow. The airflow passes through the guiding and dispersing effect of the guide cone 11 at the bottom of the ring cutting cylinder 6, further allowing the cold air to act on the material cut by the ring cutting cylinder 6, so as to improve the material condensation efficiency.

[0034] In this embodiment, the planetary gear 9 structure includes a sun gear 91, a ring gear 93, and three planetary pinions 92 that rotatably mesh between the sun gear 91 and the ring gear 93. A shaft is rotatably mounted in the middle of the planetary pinion 92 and is connected to the upper ring-cutting cylinder 6 through the shaft. A connecting ring 10 is integrally provided on the outer side of the ring gear 93. The connecting ring 10 extends downward on its lower side and is locked to the ring-cutting cylinder 6 by screws. The sun gear 91 is connected to the rotating shaft 71. Therefore, after the rotating shaft 71 rotates, the sun gear 91 meshes with the three planetary pinions 92 and rotates. The planetary pinions 92 mesh with the ring gear 93 and rotate in the opposite direction at a reduced speed. The ring gear 93 can then drive the ring-cutting cylinder 6 to rotate in the opposite direction at a reduced speed through the connecting ring 10, thereby forming differential motion.

[0035] The process also includes a granulation method for a plastic bonding resin granulation device: After the raw material is fed into the feed hopper 2, the drive motor 7 drives the rotating shaft 71. The rotating shaft 71 not only drives the stirring rod 73, the dispersing rod 731, and the scraper 732 to rotate, stirring and dispersing the raw material in the feed hopper 2 to prevent the raw material from sticking together or adhering to the inner wall of the feed hopper 2, but also simultaneously drives the conical spiral auger 31 to rotate inside the conical pressure pipe 3, allowing the raw material to be spirally extruded and melted downwards in stages. This pressure method can greatly improve the thermal melting effect of the material and the quality of the fusion after extrusion. Simultaneously, the heating of the upper electric heating plate 44 of the heat conveying pipe 4 further enhances the fusion effect of the material. The material is then conveyed downwards synchronously by the spiral auger 42 driven by the rotating shaft 71, extruding it from the annularly distributed extrusion orifices 41 to increase the area and force of extruding strip-shaped melt material. Simultaneously, the side push plate 43 is located between each extrusion orifice 41, thus strengthening the pushing force towards the extrusion orifices 41 as the rotating shaft 71 rotates, which is beneficial for improving the extrusion effect of the material in the extrusion orifices 41. Furthermore, since the lower side of the heat transfer pipe 4 is fitted with an annular cutting cylinder 6, which is connected to the rotating shaft 71 via planetary gears 9, when the rotating shaft 71 rotates, it drives the sun gear 91 to rotate. The sun gear 91 meshes with and drives three planetary pinions 92 as the annular cutting cylinder 6 rotates. Three planetary pinions 92 mesh synchronously with the gear ring 93 to rotate slowly in opposite directions. The gear ring 93 drives the ring-cutting cylinder 6 through the connecting ring 10. Therefore, the ring-cutting cylinder 6 can simultaneously move in opposite directions at a differential speed along with the rotating shaft 71 on the lower side of the heat transfer pipe 4, allowing the ring-cutting cylinder 6 to rotate slowly. The L-shaped cutter 62 uniformly cuts the material extruded from each cut 61. The cut material falls from different directions into the conical pressure pipe 3. The lower part of the heat transfer pipe 4 is located inside the cooling discharge hopper 5. Therefore, the material has a preliminary condensation effect inside the lower side of the heat transfer pipe 4, and the material extruded from the extrusion holes 41 corresponding to each cut 61 can also be directly cooled by the cold air in the cooling discharge hopper 5. The function is to accelerate the solidification of materials. When the annular cutting cylinder 6 rotates, it can synchronously drive the side fan blades 82 of the side fan 8 to make a circular rotation, so that the cold air can rotate and flow horizontally in the cooling discharge hopper 5, improve the flowability of the cold air, and make the cold air evenly and fully act on the material extruded from each annularly distributed extrusion hole 41. The bottom fan 54 can also rotate with the rotating shaft 71. When the bottom fan 54 rotates, it can blow the air upward. Under the air guiding effect of the guide cone 11 at the bottom of the annular cutting cylinder 6, which is wider at the top and narrower at the bottom, the cold air can further act on the material cut by the annular cutting cylinder 6, so as to improve the material solidification and forming efficiency. Finally, the formed material falls out from the discharge port 53 at the bottom of the cooling discharge hopper 5.

[0036] The above embodiments illustrate and describe the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A granulation device for plastic adhesive resin particles, characterized in that: It includes an outer support (1) and a feed hopper (2), a conical pressurizing pipe (3), a heat conveying pipe (4) and a cooling discharge hopper (5) that are connected and fixedly installed from top to bottom. The cooling discharge hopper (5) and the feed hopper (2) are both fixedly connected to the outer support (1), and a refrigeration unit (51) is installed on one side of the cooling discharge hopper (5). A horizontal plate (21) is installed on the upper side of the feed hopper (2). A rotating shaft (71) is rotatably installed in the middle of the horizontal plate (21). The rotating shaft (71) is penetrated by the feed hopper (2), the conical pressurizing pipe (3) and the heat conveying pipe (4) and is located inside the cooling discharge hopper (5). A drive motor (7) for driving the rotating shaft (71) to rotate is installed on the horizontal plate (21). The inner rotating shaft (71) of the feed hopper (2), the conical pressurizing pipe (3) and the heat conveying pipe (4) are respectively equipped with a matching stirring rod (73), a conical spiral auger (31) and a spiral auger (42); when the rotating shaft (71) rotates, it simultaneously stirs and disperses the material, pressurizes and melts it and extrudes it at high speed. The lower side of the heat conveying pipe (4) is provided with a ring array of multiple extrusion holes (41) that communicate with the cooling discharge hopper (5). The lower side of the heat conveying pipe (4) is rotatably fitted with a ring cutting cylinder (6). The side surface of the ring cutting cylinder (6) is provided with multiple cuts (61) corresponding to the outer periphery of the extrusion holes (41). The left and right sides of the cuts (61) are detachably connected with L-shaped cutters (62). The blades of the L-shaped cutters (62) are fitted to the outer surface of the extrusion holes (41). The bottom of the circumferential cutting cylinder (6) is rotatably mounted with a planetary gear (9). The planetary gear (9) is located inside the circumferential cutting cylinder (6), and the rotating shaft (71) is connected to the circumferential cutting cylinder (6) at a differential speed through the planetary gear (9). When the rotating shaft (71) rotates, the planetary gear (9) drives the circumferential cutting cylinder (6) to rotate at a differential speed. The L-shaped cutter (62) on each cut (61) rotates in a ring along the extrusion hole (41), thereby circumferentially cutting the material extruded from the extrusion hole (41) corresponding to the cut (61).

2. The plastic bonding resin granulation device according to claim 1, characterized in that: An electric heating plate (44) is installed on the upper side inside the ring cutting cylinder (6). The lower side of the heat conveying pipe (4) is located inside the cooling discharge hopper (5), and each extrusion hole (41) is located inside the cooling discharge hopper (5) to cool the material extruded from the lower side inside the heat conveying pipe (4) and the extrusion hole (41). A side air hole (52) is opened on one side of the cooling discharge hopper (5).

3. The plastic bonding resin granulation device according to claim 1, characterized in that: The L-shaped cutter (62) is locked to the left and right sides of the cut (61) by screws, and the lower side of the cut (61) is an inclined surface. The inner side of the ring-cutting cylinder (6) is rotatably connected to the lower side of the heat transfer pipe (4) through a bearing (63).

4. The plastic adhesive resin granulation device according to claim 3, characterized in that: The stirring rod (73) is equipped with a plurality of dispersing rods (731) in the middle. The stirring rod (73) is equipped with a scraper (732) at the end. The scraper (732) is in contact with the inner wall of the feed hopper (2). The rotating shaft (71) is fixedly provided with a shuttle-shaped body (72) in the middle. The conical spiral auger (31) is fixedly provided on the lower side of the shuttle-shaped body (72). The top sharp corner of the shuttle-shaped body (72) is located in the middle of the inner side of the feed hopper (2). The shuttle-shaped body (72) is located below the dispersing rods (731).

5. The plastic bonding resin granulation device according to claim 1, characterized in that: Multiple side fans (8) are disassembled and installed on the outer periphery of the circumferential cutting cylinder (6) and are staggered from the cut (61) to improve the lateral rotational flow of cold air inside the cooling discharge hopper (5). The side fan (8) is located on the side of the air outlet of the refrigerator (51). The side fan (8) structure includes a connecting rod (81) and a side fan blade (82) that are locked together by bolts. The side fan blade (82) is vertically rotated and distributed inside the cooling discharge hopper (5), while one end of the connecting rod (81) is locked to the outside of the circumferential cutting cylinder (6).

6. The plastic bonding resin granulation device according to claim 1, characterized in that: The planetary gear (9) structure includes a sun gear (91), a gear ring (93), and multiple planetary pinions (92) that rotate and mesh between the sun gear (91) and the gear ring (93). A shaft is rotatably mounted in the middle of the planetary pinion (92) and connected to the upper ring-cutting cylinder (6) through the shaft. A connecting ring (10) is integrally provided on the outer side of the gear ring (93). The connecting ring (10) extends downward on the lower side and is locked to the ring-cutting cylinder (6) by screws. The sun gear (91) is connected to the rotating shaft (71).

7. The plastic bonding resin granulation device according to claim 1, characterized in that: The bottom of the rotating shaft (71) is equipped with a bottom shaft (74), which is penetrated by the ring cutting cylinder (6) and located in the middle of the cooling discharge hopper (5). A bottom fan (54) is provided in the middle of the inner side of the cooling discharge hopper (5). The bottom fan (54) is installed on the bottom shaft (74), and the diameter of the bottom fan (54) is smaller than the diameter of the ring cutting cylinder (6). When the rotating shaft (71) rotates, it drives the bottom fan (54) to blow air upwards. A guide cone (11) is installed at the bottom of the ring cutting cylinder (6) and penetrated by the bottom shaft (74). The tip of the guide cone (11) is set towards the bottom fan (54).

8. The plastic bonding resin granulation device according to claim 1, characterized in that: The rotating shaft (71) inside the heat transfer pipe (4) is also equipped with a side push plate (43), which is located between each extrusion hole (41), and the end of the side push plate (43) is spaced apart from the extrusion hole (41).

9. A process for producing plastic adhesive resin granules, using the plastic adhesive resin granulation apparatus as described in claim 1, characterized in that, After the raw material is fed into the feed hopper (2), the drive motor (7) drives the rotating shaft (71). The rotating shaft (71) not only allows the stirring rod (73) to stir and disperse the raw material in the feed hopper (2), but also the conical spiral auger (31) rotates in the conical pressure pipe (3). The raw material is spirally extruded and melted downwards step by step, and through the hot melting of the hot conveying pipe (4) and the conveying of the spiral auger (42), the material is extruded from the large-scale annularly distributed extrusion holes (41). Since the lower side of the hot conveying pipe (4) is fitted with a ring cutting cylinder (6), and the ring cutting cylinder (6) is connected to the rotating shaft (71) through the planetary gear (9), the ring cutting cylinder (6) can simultaneously move with the rotating shaft (71). The rotating shaft (71) moves in opposite directions at a differential speed, causing the ring cutting cylinder (6) to rotate slowly. The material extruded from the extrusion hole (41) is extruded from the cuts (61) in various directions. After the ring cutting cylinder (6) rotates, it synchronously drives the L-shaped cutter (62) to ring cut the material extruded from each cut (61), allowing the ring-cut material to fall from different directions. Since the lower part of the heat conveying pipe (4) is inside the cooling discharge hopper (5), the material has a preliminary condensation effect inside the lower part of the heat conveying pipe (4). The material extruded from the extrusion hole (41) corresponding to each cut (61) can also be directly acted on by the cold air in the cooling discharge hopper (5) to accelerate the solidification of the material.

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