Granulation machine for plastic processing

Abstract

The invention relates to the technical field of plastic processing, and particularly discloses a particle pumping machine for plastic processing, the particle pumping machine comprises an extrusion cylinder, a mixing cylinder and a feeding cylinder, the mixing cylinder and the feeding cylinder are sequentially communicated with the extrusion cylinder, and a feeding hopper is arranged above the top end of the feeding cylinder; the crushing device further comprises a crushing roller, the crushing roller is arranged and mounted in the feeding hopper, a first driving shaft is rotationally mounted in the middle of the feeding barrel, a pushing plate with the screw pitch gradually increased is mounted on the outer side of the first driving shaft, and the first driving shaft is in transmission connection with the crushing roller; and the second driving shaft is rotationally mounted in the mixing barrel, and a mixing rod used for enhancing the plastic mixing effect is arranged on the outer side of the second driving shaft. According to the grain pumping machine for plastic processing, through the collaborative design of smashing and compacting, multi-stage mixing and filtering, cooling and grain cutting and hot air circulation, the heat energy utilization rate, mixing uniformity and finished product quality of the grain pumping machine are remarkably improved, and meanwhile energy consumption and the failure rate are reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plastic processing, in particular to a granulator for plastic processing. BACKGROUND

[0002] The granulator (also known as a pelletizer) is an extrusion molding equipment for processing standard particles from plastic raw materials or recycled materials, and the general core process can be summarized as: heating and plasticizing, extruding and molding, cooling and solidifying, and cutting and packaging. A granulator for waterproof particle processing is disclosed in a patent with the authorized announcement number CN 221249475 U, which comprises a tank body and further comprises: a stirring mechanism for promoting the flow of waterproof particle raw materials; a discharging mechanism for the point discharge of waterproof particle raw materials; a preheating mechanism for heating the waterproof particle raw materials; a fixed frame is installed on the inner wall of the tank body, a motor is arranged in the fixed frame, a rotating rod is connected to one end of the output shaft of the motor, a rotating block is sleeved on the outer wall of the rotating rod, an installation box is connected to the top outer wall of the fixed frame, and material plates are connected to the outer walls of the installation box, and notches are formed in the inner walls of the installation box. The granulator for waterproof particle processing has the technical effect of preheating to improve production efficiency. A granulator is disclosed in a patent with the authorized announcement number CN 213260485 U, which comprises a trapezoidal workbench, a fixed column with a through slot is fixed above the workbench, an annular heating layer is arranged on the inner wall of the fixed column, and the heating layer is fixed in the groove on the inner wall of the fixed column, one end of the through slot is inserted into the threaded screw rod, a control box is tightly connected to the rear side of the fixed column, a rotating motor is arranged in the control box, the rotating shaft of the rotating motor is fixedly connected to the other end of the screw rod, an extrusion outlet is arranged at the other end of the through slot, a slicing machine base is fixedly connected to the upper part of the fixed column and is aligned with the extrusion outlet, a cutting knife is connected to the slicing machine base and slides up and down tightly against the outer wall of the extrusion outlet, an extension rod is connected between the cutting knife and the slicing machine base, a servo motor is connected to the upper part of the slicing machine base and controls the extension rod, and a blower is connected to one side of the extension rod. The heating layer is used for heating the material in a large area, the speed of the material flowing into the sticky state is improved, the extrusion is easier, the blower blows air after extrusion, the cutting knife cuts the material, and the material is quickly cooled after cutting to avoid adhesion of the material. However, the granulator still has some disadvantages in actual use, such as: When the raw materials of the granulator are added, due to the different particle sizes of the raw materials, gaps are formed between the raw materials, and channels are formed between the raw materials and the extrusion cylinder during feeding, which allows external air to enter the granulator, affects the heating and melting efficiency, causes heat waste, affects continuous granulation use, and even affects the pelletizing and molding quality. After the raw materials are added, the mixing efficiency of the molten raw materials is poor, resulting in color difference in the actual granulation products and affecting the product quality. Due to long time continuous granulation processing, its internal temperature is high, and in the continuous granulation processing, it is easy to cause adhesion, causing the finished product to trail.

[0003] Therefore, we propose a plastic processing granulator to solve the problems raised in the above. SUMMARY

[0004] The purpose of the present application is to provide a plastic processing granulator to solve the problems raised in the above background art, which causes empty way when feeding raw materials, causing heat waste, which is not conducive to rapid feeding, and at the same time, the mixing quality is poor, which affects the product color uniformity, and causes the finished product to trail during granulation, affecting the quality of finished products.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a plastic processing granulator, comprising an extrusion cylinder and a mixing cylinder and a feeding cylinder communicated with the extrusion cylinder in sequence, a feeding hopper is arranged above the top end of the feeding cylinder; Further comprising: A crushing roller is arranged and installed in the inside of the feeding hopper, a first driving shaft is rotatably installed in the middle part of the feeding cylinder, and a push plate with gradually increasing pitch is installed on the outside of the first driving shaft, and the first driving shaft is transmissionally connected with the crushing roller; A second driving shaft is rotatably installed in the inside of the mixing cylinder, and a mixing rod for enhancing the mixing effect of the plastic is arranged on the outside of the second driving shaft; An extrusion auger is rotatably installed in the middle part of the extrusion cylinder, a discharge cylinder is arranged on the outside of the top part of the extrusion auger and is attached to the inside of the extrusion cylinder, and a cutter is attached to the outside of the extrusion auger and is fixed to the extrusion auger; An air inlet groove is arranged at equal angles on the side wall of the extrusion cylinder outside the discharge cylinder, and a ventilation mechanism is arranged above the extrusion cylinder for auxiliary cooling.

[0006] Further, the crushing roller comprises a crushing wheel, a side knife and a transmission gear, the crushing wheel is rotatably installed at equal intervals on the inside of the feeding hopper, the end of the crushing wheel is fixed with a transmission gear for engaging transmission, the outside of the crushing wheel is provided with a side knife fixed to the inside wall of the feeding hopper, and the end of the crushing wheel is connected with a first transmission belt transmissionally connected with the first driving shaft.

[0007] Further, the contact ends of the mixing cylinder and the feeding cylinder are fixedly installed with side frames, the middle part of the side frame is in a hollow structure, and the side frames are closely attached between the single bodies, and the ends of the first driving shaft and the second driving shaft are correspondingly rotatably connected with the side frame.

[0008] Further, the top outer side of the second driving shaft is provided with a first filter plate located on the right side of the mixing rod, and the middle outer side of the second driving shaft is provided with a second filter plate located on the left side of the mixing rod, and the hollow mesh of the first filter plate and the second filter plate decreases in turn.

[0009] Further, the bottom end of the mixing cylinder is provided with a lower hopper, and the top end of the extrusion cylinder is connected with a receiving hopper in communication with the lower hopper.

[0010] Further, the discharge cylinder comprises a first fixed plate, an extrusion pipe and a second fixed plate, the first fixed plate is arranged on the outer side of the spiral blade of the extrusion auger, the inside of the first fixed plate is uniformly provided with the extrusion pipe, the top end of the extrusion pipe is fixedly inserted into the inside of the second fixed plate, and the second fixed plate is attached to the cutter.

[0011] Further, the end of the extrusion cylinder, the mixing cylinder and the feeding cylinder is provided with a sealing assembly, the sealing assembly is composed of a sealing plate and a sealing gasket, and the sealing plate is attached to the inside through the sealing gasket.

[0012] Further, the top end of the extrusion cylinder is provided with a discharge port below, and the top end of the extrusion cylinder is fixedly provided with a port plate, and the port plate is in a hollow structure.

[0013] Further, the ventilation mechanism comprises: A fan is fixedly installed above the extrusion cylinder, and the input end of the fan is communicated with an air inlet pipe; An air outlet pipe is connected to the output end of the fan, and the top end of the air outlet pipe is connected with a preheating pipe; The bottom end of the air inlet pipe is in communication with the extrusion cylinder, and the top end of the preheating pipe is uniformly communicated with the outside of the feeding hopper.

[0014] Further, the outside of the preheating pipe is connected with a booster pipe, and the top end of the booster pipe is communicated with the top end of the mixing cylinder.

[0015] Compared with the prior art, the granulator for plastic processing has at least the following beneficial effects: through the cooperative design of crushing and compaction, multi-stage mixing and filtration, cooling and cutting and hot air circulation, the heat energy utilization rate, mixing uniformity and product quality of the granulator are significantly improved, and the energy consumption and failure rate are reduced; 1. The crushing roller arranged in the feeding hopper crushes the raw materials, and the push plate with gradually increasing pitch on the first driving shaft in the feeding cylinder compacts and pushes the materials, effectively reducing the gap between the raw materials and the channel between the materials and the cylinder wall, avoiding the heat loss caused by the entry of external air, improving the heating and melting efficiency, reducing the energy consumption, and being conducive to maintaining the stability of the internal temperature of the equipment and improving the working environment; 2. The second drive shaft with a mixing rod is arranged inside the mixing cylinder, and cooperates with the first filter plate and the second filter plate to carry out multi-stage filtering and mixing, so that the plastic raw material is fully and uniformly stirred during melting, effectively solving the color difference problem caused by uneven mixing, and significantly improving the color consistency and overall quality of the pellet product; 3. The discharge cylinder composed of an extrusion pipe is arranged at the top of the extrusion cylinder, the long strip structure of the discharge cylinder is used for pre-cooling and shaping the molten material, the air inlet groove is arranged on the side wall of the extrusion cylinder outside the discharge cylinder, and the hollow structure of the port plate is used for strengthening ventilation, so as to effectively reduce the temperature of the working area of the cutter, avoid the material adhesion and the "tail phenomenon" of the finished product during high-temperature pelletizing, and ensure the regularity and independence of the particle form; 4. The ventilation mechanism composed of the fan, the air inlet pipe, the air outlet pipe and the preheating pipe can not only reduce the temperature and assist in stabilizing the pelletizing, but also extract the waste heat air in the pelletizing area and guide it to the feeding hopper to preheat the raw material, and part of the hot air is introduced into the mixing cylinder through the booster pipe to assist the material flow and internal pressure boosting, so that the recycling of heat energy is realized, the overall energy consumption is further reduced, and the efficiency of the extrusion pelletizing is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a schematic diagram of the overall front structure of the present application; Figure 2 It is a schematic diagram of the overall back structure of the present application; Figure 3 It is a schematic diagram of the overall cut structure of the present application; Figure 4 It is a schematic diagram of the overall exploded structure of the crushing wheel and the first drive shaft of the present application; Figure 5 It is a schematic diagram of the overall exploded structure of the second drive shaft and the extrusion auger of the present application; Figure 6 It is a schematic diagram of the overall exploded structure of the second drive shaft and the extrusion auger of the present application; Figure 5 It is a schematic diagram of the overall exploded structure of the second drive shaft and the extrusion auger of the present application; Figure 7 It is a schematic diagram of the overall structure of the side frame of the present application; Figure 8 It is a schematic diagram of the overall structure of the side frame of the present application; Figure 9 It is a schematic diagram of the overall structure of the side frame of the present application; Figure 10 It is a schematic diagram of the overall structure of the side frame of the present application;

[0017] In the figure: 1, extrusion cylinder; 2, mixing cylinder; 3, feeding cylinder; 4, feeding hopper; 5, crushing roller; 51, crushing wheel; 52, side knife; 53, transmission gear; 54, first transmission belt; 6, first drive shaft; 61, push plate; 7, first motor; 8, second drive shaft; 81, mixing rod; 9, side frame; 10, first filter plate; 11, second filter plate; 12, second transmission belt; 13, extrusion auger; 14, second motor; 15, discharge hopper; 16, receiving hopper; 17, first fixed plate; 18, extrusion pipe; 19, second fixed plate; 20, cutter; 21, discharge port; 22, port plate; 23, air inlet groove; 24, sealing plate; 25, sealing gasket; 26, fan; 27, air inlet pipe; 28, air outlet pipe; 29, preheating pipe; 30, booster pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, so that the implementation process of how to apply technical means to solve the technical problems and achieve the technical effects of the present application can be fully understood and implemented. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0019] Please refer to Figures 1-10 The present application provides the following technical solutions: A granulator for plastic processing, comprising: an extrusion cylinder 1, a mixing cylinder 2, a feeding cylinder 3, a feeding hopper 4, a crushing roller 5, a crushing wheel 51, a side knife 52, a transmission gear 53, a first transmission belt 54, a first drive shaft 6, a push plate 61, a first motor 7, a second drive shaft 8, a mixing rod 81, a side frame 9, a first filter plate 10, a second filter plate 11, a second transmission belt 12, an extrusion auger 13, a second motor 14, a discharge hopper 15, a receiving hopper 16, a first fixed plate 17, an extrusion pipe 18, a second fixed plate 19, a cutter 20, a discharge port 21, a port plate 22, an air inlet groove 23, a sealing plate 24, a sealing gasket 25, a fan 26, an air inlet pipe 27, an air outlet pipe 28, a preheating pipe 29, and a booster pipe 30. The system comprises: an extrusion cylinder 1, a mixing cylinder 2, and a feeding cylinder 3 connected in sequence; a discharge hopper 15 is provided at the bottom of the mixing cylinder 2; a receiving hopper 16, corresponding to and connected to the discharge hopper 15, is connected to the top of the extrusion cylinder 1; a feeding hopper 4 is provided above the top of the feeding cylinder 3; a crushing roller 5 is arranged and installed inside the feeding hopper 4; a first drive shaft 6 is rotatably mounted in the middle of the feeding cylinder 3; and a pusher plate 61 with gradually increasing pitch is mounted on the outside of the first drive shaft 6; the first drive shaft 6 is connected to the crushing roller 5 via a transmission connection; and a second drive shaft 8 is rotatably mounted inside the mixing cylinder 2. A mixing rod 81 is provided on the outside of the extrusion cylinder 1 to enhance the mixing effect of the plastic. The extrusion auger 13 is rotatably installed in the middle of the extrusion cylinder 1. A discharge cylinder is provided on the top outside of the extrusion auger 13 and is attached to the inside of the extrusion cylinder 1. A cutter 20 is attached to the outside of the extrusion auger 13. A discharge port 21 is provided below the top of the extrusion cylinder 1. A port plate 22 is fixedly installed on the top of the extrusion cylinder 1. The port plate 22 has a hollow structure. An air inlet groove 23 is opened at an equal angle on the side wall of the extrusion cylinder 1 outside the discharge cylinder. A ventilation mechanism for auxiliary cooling is provided above the extrusion cylinder 1.

[0020] The above technical solution enables rapid crushing of added plastic raw materials. The extrusion plate 61, with its gradually increasing pitch, pushes the raw materials inwards quickly after they fall, reducing heat loss due to gaps between the raw materials and the inner wall. This not only ensures stable internal melting but also helps lower the workshop temperature and improve the working environment. Heating elements are fitted to the inner walls of the mixing cylinder 2 and the feeding cylinder 3 for material melting, and the mixing rod 81 enhances the mixing of the incoming and outgoing raw materials, improving product color difference. During extrusion granulation inside the extrusion cylinder 1, pre-cooling and shaping via the discharge cylinder directly reduces the temperature during pelletizing. The open end of the extrusion cylinder 1 via the port plate 22 facilitates cooling and ventilation, improving the cooling effect on the pelletizing area, reducing adhesion, and preventing finished product tailing.

[0021] Among them: such as Figure 1 , Figure 3 and Figure 4 In the crushing roller 5, there are crushing wheels 51, side cutters 52 and transmission gears 53. The crushing wheels 51 are rotatably installed at equal intervals on the inner side of the feed hopper 4. The end of the crushing wheel 51 is fixed with a transmission gear 53 for meshing transmission. The outer side of the crushing wheel 51 is provided with side cutters 52 fixed to the inner side wall of the feed hopper 4. The end of the crushing wheel 51 is connected to a first transmission belt 54 that drives the first drive shaft 6.

[0022] The above technical scheme has the following advantages: the first transmission belt 54 is connected between the crushing wheel 51 and the first driving shaft 6, and the first driving shaft 6 is connected with the first motor 7 at the end through the transmission belt, so that the first motor 7 can drive the crushing wheel 51 and the first driving shaft 6 to drive simultaneously, the crushing wheel 51 and the side cutter 52 are spaced apart to shred the entering raw materials, which can reduce the large gap caused by the caked raw materials, and cooperate with the driving and extrusion of the pushing plate 61 to facilitate rapid feeding and accelerate melting.

[0023] In the above, Figure 1 , Figure 3 and Figure 7 , the contact end of the mixing cylinder 2 and the feeding cylinder 3 is fixedly installed with a side frame 9, the middle part of the side frame 9 is in a hollow structure, and the side frames 9 are tightly fitted between the single bodies, and the ends of the first driving shaft 6 and the second driving shaft 8 are correspondingly rotationally connected with the side frame 9.

[0024] The above technical scheme has the following advantages: the ends of the first driving shaft 6 and the second driving shaft 8 can be rotationally supported by the side frame 9, and the internal hollow structure ensures normal conveying of the raw materials, and the bearings for the rotation of the first driving shaft 6 and the second driving shaft 8 are wrapped in the middle position of the side frame 9, which can ensure stable conveying of the raw materials.

[0025] In the above, Figure 3 , Figure 5 and Figure 6 , the top outside of the second driving shaft 8 is provided with the first filter plate 10 located at the right side of the mixing rod 81, the middle outside of the second driving shaft 8 is provided with the second filter plate 11 located at the left side of the mixing rod 81, and the hollow mesh holes of the first filter plate 10 and the second filter plate 11 are sequentially reduced.

[0026] The above technical scheme has the following advantages: the raw materials entering the inside of the mixing cylinder 2 are in a molten state under the action of the heating elements arranged on the inner walls of the mixing cylinder 2 and the feeding cylinder 3, the rotation of the second driving shaft 8 drives the mixing rod 81 to intensify the mixing of the raw materials, the raw materials first pass through the first filter plate 10 to the outside of the mixing rod 81, which can block the large raw materials and ensure uniform mixing, and under the continuous extrusion of the raw materials, the raw materials after melting and mixing pass through the second filter plate 11 to the left side of the mixing cylinder 2 and then flow into the inside of the extruding cylinder 1, which can filter the raw materials through the second filter plate 11 and extrude the raw materials into the inside for further mixing to avoid color difference.

[0027] In the above, Figure 3 and Figure 8In the middle, the discharge cylinder includes a first fixed plate 17, an extrusion pipe 18 and a second fixed plate 19, the first fixed plate 17 is attached to the outside of the spiral blade of the extrusion auger 13, the inside of the first fixed plate 17 is uniformly provided with the extrusion pipe 18, the top end of the extrusion pipe 18 is fixedly inserted into the inside of the second fixed plate 19, and the second fixed plate 19 is attached between the cutter 20.

[0028] The above technical scheme is adopted: the rotation of the extrusion auger 13 makes the raw materials pass through the discharge cylinder for forming extrusion, the molten raw materials enter the inside of the extrusion pipe 18 through the first fixed plate 17, the long strip structure of the extrusion pipe 18 can gradually cool the entering raw materials, and the raw materials are cut and granulated by the cutter 20 after being extruded from the end face of the cutter 20. Since the cooling is performed through the extrusion pipe 18, the working temperature during the cutting and granulation can be directly reduced, and the adhesion caused by long-time work can be reduced. In addition, the air inlet groove 23 is arranged on the side wall of the extrusion cylinder 1 outside the discharge cylinder, and the end port plate 22 is arranged at the end of the extrusion cylinder 1. Air can be introduced to ensure cooling, so that the cutting and granulation are stably performed. The finished particles fall and are collected through the discharge port 21 arranged below the end of the extrusion cylinder 1. Among them: Figure 3 And Figure 9 In the middle, the end of the extrusion cylinder 1, the mixing cylinder 2 and the feeding cylinder 3 is provided with a sealing assembly, and the sealing assembly is composed of a sealing plate 24 and a sealing gasket 25, and the sealing plate 24 is attached to the inside through the sealing gasket 25.

[0029] The above technical scheme is adopted. The sealing plate 24 is arranged at the end of the extrusion cylinder 1, the mixing cylinder 2 and the feeding cylinder 3, and the sealing plate 24 is sealingly attached to the inner wall of the end of the extrusion cylinder 1, the mixing cylinder 2 and the feeding cylinder 3 through the sealing gasket 25, so that the end can be sealed to prevent leakage of raw materials Among them: Figure 1 、 Figure 2 And Figure 10 In the middle, the ventilation mechanism includes a fan 26 and an air outlet pipe 28, the fan 26 is fixedly installed above the extrusion cylinder 1, the input end of the fan 26 is communicated with an air inlet pipe 27, the air outlet pipe 28 is connected to the output end of the fan 26, the top end of the air outlet pipe 28 is connected with a preheating pipe 29, the bottom end of the air inlet pipe 27 is communicated with the extrusion cylinder 1, the top end of the preheating pipe 29 is uniformly communicated with the outside of the feeding hopper 4, the outside of the preheating pipe 29 is connected with a booster pipe 30, and the top end of the booster pipe 30 is communicated with the top end of the mixing cylinder 2.

[0030] The above technical scheme is adopted: through the starting of the fan 26, the input end of the fan 26 is communicated with the discharge cylinder and the area above the pelletizing area by the air inlet pipe 27, and when air suction is performed, the area can be effectively cooled, thereby avoiding tailing of the pelletizing, and the air flow sucked is heated in the discharge cylinder and the pelletizing area and is output through the air outlet pipe 28 and the preheating pipe 29, the end of the preheating pipe 29 extends into the top of the feed hopper 4, the raw materials added can be preheated for use, and the outer side of the preheating pipe 29 is communicated with the booster pipe 30, hot air can be introduced into the inside of the mixing cylinder 2 through the booster pipe 30, the raw materials can be rapidly flowed into the inside of the extrusion cylinder 1, the pressure in the inside of the extrusion cylinder 1 can be increased, and the extrusion and granulation are assisted.

[0031] Embodiment: when the pelletizing processing is performed, first, the raw materials are put into the inside of the feed hopper 4, the first motor 7 is driven to drive the first motor 7 to synchronously rotate the crushing wheel 51 and the first driving shaft 6, and the raw materials in the inside of the feed hopper 4 are crushed by the crushing wheel 51 and the side cutter 52; The crushed raw materials fall into the inside of the feed cylinder 3, the first driving shaft 6 is rotated, the raw materials are extruded to the direction of the mixing cylinder 2 by the pushing plate 61, and the heating elements arranged on the inner walls of the mixing cylinder 2 and the feed cylinder 3 are started to melt the raw materials; The melted raw materials are filtered by the first filter plate 10 once and enter the outside of the mixing rod 81, the second motor 14 is driven, the extrusion screw 13 and the second driving shaft 8 are synchronously rotated by the second transmission belt 12, and the second driving shaft 8 rotates to mix the raw materials entering the outside of the mixing rod 81, thereby avoiding color difference of the finished product; The mixed raw materials are filtered by the second filter plate 11 and enter the inside of the extrusion cylinder 1 through the communication between the mixing cylinder 2 and the extrusion cylinder 1, the raw materials enter the inside of the extrusion pipe 18 through the extrusion of the extrusion screw 13, are cooled by the long strip structure of the extrusion pipe 18, and are pelletized by the cutter 20, when working, the extrusion pipe 18 is communicated with the outside through the air inlet groove 23, can be cooled, and the port plate 22 fixed at the end of the extrusion cylinder 1 is in a hollow structure, can be further cooled, and tailing of the pelletizing is avoided; When the fan 26 is started, the outside of the extrusion pipe 18 and the cutter 20 can be effectively cooled by air suction through the air inlet pipe 27, thereby avoiding tailing of the pelletizing, the sucked hot air is output through the air outlet pipe 28 and the preheating pipe 29, the end of the preheating pipe 29 extends into the top of the feed hopper 4 to preheat the added raw materials, the outer side of the preheating pipe 29 is communicated with the booster pipe 30, hot air can be introduced into the inside of the mixing cylinder 2 through the booster pipe 30, the raw materials can be rapidly flowed into the inside of the extrusion cylinder 1, and the pressure in the inside of the extrusion cylinder 1 can be increased, thereby assisting the extrusion and granulation.

[0032] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative labor fall within the scope of the present application; the content not described in detail in the specification is the prior art known to those of ordinary skill in the art, and in addition, the orientation terms such as up, down, left, right, front, back, etc. in the specification only represent relative positions and not absolute positions.

[0033] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets, and welding in the prior art, the mechanical, parts, and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0034] Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A plastic processing granulator, comprising an extrusion cylinder (1) and a mixing cylinder (2) and a feeding cylinder (3) sequentially communicated with the extrusion cylinder (1), a feeding hopper (4) being arranged above the top end of the feeding cylinder (3); characterized in that Further comprising: a crushing roller (5) arranged and installed inside the feeding hopper (4), a first driving shaft (6) being rotatably installed at the middle part of the feeding cylinder (3), a push plate (61) with gradually increasing pitch being installed outside the first driving shaft (6), and the first driving shaft (6) being in transmission connection with the crushing roller (5); a second driving shaft (8) rotatably installed inside the mixing cylinder (2), and a mixing rod (81) for strengthening plastic mixing effect being arranged outside the second driving shaft (8); an extrusion auger (13) rotatably installed at the middle part of the extrusion cylinder (1), a discharge cylinder being arranged outside the top part of the extrusion auger (13) and fitted inside the extrusion cylinder (1), and a cutter (20) being fixed outside the extrusion auger (13) and fitted outside the discharge cylinder; an air inlet groove (23) being equiangularly arranged on the sidewall of the extrusion cylinder (1) outside the discharge cylinder, and a ventilation mechanism being arranged above the extrusion cylinder (1) for assisting in cooling.

2. The pelletizer for processing plastic according to claim 1, characterized in that: The crushing roller (5) comprises a crushing wheel (51), a side cutter (52) and a transmission gear (53), the crushing wheel (51) being equidistantly rotatably installed inside the feeding hopper (4), the transmission gear (53) being fixed at the end of the crushing wheel (51) for engaging transmission, the side cutter (52) being arranged outside the crushing wheel (51) and fixed to the inner sidewall of the feeding hopper (4), and the first driving belt (54) being connected between the end of the crushing wheel (51) and the first driving shaft (6).

3. The pelletizer for processing plastic according to claim 1, characterized in that: The contact ends of the mixing cylinder (2) and the feeding cylinder (3) are fixedly installed with side frames (9), the middle parts of the side frames (9) are in hollow structure, the side frames (9) are closely fitted between the single bodies, and the ends of the first driving shaft (6) and the second driving shaft (8) are correspondingly rotatably connected with the side frames (9).

4. The pelletizer for processing plastic according to claim 1, characterized in that: The top outside of the second driving shaft (8) is provided with a first filter plate (10) located at the right side of the mixing rod (81), the middle outside of the second driving shaft (8) is provided with a second filter plate (11) located at the left side of the mixing rod (81), and the hollow mesh holes of the first filter plate (10) and the second filter plate (11) are sequentially reduced.

5. The pelletizer for processing plastic according to claim 1, characterized in that: The bottom end of the mixing cylinder (2) is provided with a lower hopper (15), and the top end of the extrusion cylinder (1) is connected with a receiving hopper (16) in communication with the lower hopper (15).

6. The pelletizer for processing plastic according to claim 1, characterized in that: The discharge cylinder comprises a first fixed plate (17), an extrusion pipe (18) and a second fixed plate (19), the first fixed plate (17) is fitted outside the spiral blade of the extrusion auger (13), the extrusion pipe (18) is uniformly installed inside the first fixed plate (17), the top end of the extrusion pipe (18) is fixedly inserted into the inside of the second fixed plate (19), and the second fixed plate (19) is fitted with the cutter (20).

7. The pelletizer for processing plastic according to claim 1, wherein: The end of the extrusion cylinder (1), the mixing cylinder (2) and the feeding cylinder (3) is provided with a sealing assembly, which is composed of a sealing plate (24) and a sealing gasket (25), and the sealing plate (24) is attached to the inside through the sealing gasket (25).

8. The pelletizer for processing plastic according to claim 1, wherein: A discharge port (21) is arranged below the top end of the extrusion cylinder (1), and a port plate (22) is fixedly installed on the top end of the extrusion cylinder (1), wherein the port plate (22) is in a hollow structure.

9. The pelletizer for processing plastic according to claim 1, wherein: The ventilation mechanism comprises: A fan (26) is fixedly installed above the extrusion cylinder (1), and an air inlet pipe (27) is connected to the input end of the fan (26); An air outlet pipe (28) is connected to the output end of the fan (26), and a preheating pipe (29) is connected to the top end of the air outlet pipe (28); The bottom end of the air inlet pipe (27) is connected to the extrusion cylinder (1), and the top end of the preheating pipe (29) is uniformly connected to the outside of the feeding hopper (4).

10. The pelletizer for processing plastic according to claim 9, wherein: A booster pipe (30) is connected to the outside of the preheating pipe (29), and the top end of the booster pipe (30) is connected to the top end of the mixing cylinder (2).

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