Efficient composite double-stage extrusion granulator for cable sheath preparation
By designing a high-efficiency composite two-stage extrusion granulator, the problems of unmixed materials and low equipment efficiency in cable sheath preparation have been solved, achieving uniform material mixing and controllable particle size, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING BAIYOU EXTRUSION MASCH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-21
AI Technical Summary
In existing cable sheath preparation equipment, the single-stage extrusion design leads to insufficient plasticization of materials, poor granulation quality, low equipment efficiency, complex structure and high maintenance costs, and the lack of a mixing device results in insufficient mixing of raw materials, affecting product quality.
The high-efficiency composite two-stage extrusion granulator includes a support base, a stirring drum, a mixing drum, and a cutting mechanism. The heating, mixing, and filtering of raw materials are achieved through a DC motor, a servo motor, and a heating sleeve. Impurities are removed by a conical filter screen and a perforated scraper column. The servo motor drives the stirring blades for mixing, and the cylinder drives the cutting blade to cut into granules. Temperature control sensors and concentration sensors ensure precise control of temperature and concentration.
This ensures thorough mixing of materials, improves product uniformity and stability, enhances production efficiency, reduces failure frequency, achieves efficient granulation and controllable particle size, and guarantees product quality and production safety.
Smart Images
Figure CN224527668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of two-stage extrusion granulation technology, and in particular to a high-efficiency composite two-stage extrusion granulation machine for cable sheath preparation. Background Technology
[0002] In the cable sheath manufacturing industry, extrusion granulators are crucial equipment. Currently, the cable industry is booming, and the requirements for the quality and performance of cable sheaths are becoming increasingly stringent. However, traditional extrusion granulators have many drawbacks. On the one hand, the single-stage extrusion design results in insufficient plasticization of materials and poor granulation quality, making it difficult to meet the requirements of high-end cable sheaths for material uniformity and stability. On the other hand, the overall efficiency of the equipment is low, and the production cycle is long. In today's highly competitive market, it is difficult to meet the requirements of enterprises for efficient production. Moreover, the existing equipment has a complex structure, high maintenance costs, and frequent failures, which seriously affect the production schedule. Therefore, it is urgent to develop a high-efficiency composite two-stage extrusion granulator for cable sheath manufacturing.
[0003] A search revealed Chinese patent publication number CN211307301U, which discloses a high-efficiency composite two-stage extrusion granulator, comprising a primary conveying device, a transfer device, and a secondary extrusion device. The discharge end of the primary conveying device and the feed end of the secondary extrusion device are connected via the transfer device. A feeder is located at the top of the primary conveying device, and an A motor is installed at one end of the primary conveying device. The output end of the A motor, passing through the interior of the primary conveying device, is connected to an A screw. The rotating shaft at the output end of the transfer motor drives a tipping bucket to rotate. When the tipping bucket rotates to the primary discharge bin, it displaces the material... When the material is excavated and rotated to the second-stage feeding hopper, it is tilted towards the feeding end of the second-stage extrusion device. Every 120° is a material tilting and transfer cycle, which solves the problem of material blockage between the primary conveying device and the second-stage extrusion device, keeps the material conveying smoothly, and improves the product quality of composite granulation. However, in actual use, at the connection between the primary and secondary extrusion, it is often necessary to add other raw materials to the raw materials that have completed the primary extrusion. Due to the lack of a mixing device, the material directly enters the secondary extrusion, resulting in a large amount of raw materials not being mixed together in the final product, which leads to product defects. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a high-efficiency composite two-stage extrusion granulator for cable sheath preparation, aiming to improve the problem in the prior art that there is no mixing device for the raw materials and additives after the first-stage extrusion, resulting in a large amount of raw materials not being mixed together in the produced material.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency composite two-stage extrusion granulator for preparing cable sheaths, comprising a support base, a bracket fixedly connected to the top right side of the support base, a DC motor fixedly connected to the top of the bracket, a stirring cylinder fixedly connected to the top left side of the bracket, a heating sleeve connected to the top of the outer wall of the stirring cylinder, a mixing cylinder connected to the left end of the stirring cylinder, an auger fixedly connected to the output end of the stirring cylinder, a servo motor fixedly connected to the top middle of the mixing cylinder, a conical filter fixedly connected to the middle of the inner wall of the mixing cylinder, a perforated scraper column fixedly connected to the output end of the servo motor, a plurality of stirring blades fixedly connected to the bottom end of the perforated scraper column, a second stirring cylinder connected to the bottom end of the mixing cylinder, a second-stage extrusion assembly provided at the rear end of the second stirring cylinder, and a cutting mechanism provided at the top front end of the support base.
[0006] The above technical solution provides a stable support base for the entire equipment. The raw materials to be processed are placed in the feeding cylinder. Then, the DC motor and heating sleeve are started. The rotation of the DC motor drives the auger to rotate. Under the pushing action of the auger, the material moves along the axial direction of the mixing cylinder. Under the operation of the heating sleeve, the material in the mixing cylinder is heated, which softens the material initially, making it easier for subsequent stirring and mixing. Then, it enters the mixing cylinder and is filtered by the conical filter screen to remove impurities or undissolved raw materials from the first-stage extrusion. At this time, the servo motor is started, which drives the perforated scraper column to rotate. Under the centrifugal force, the impurities or undissolved raw materials are thrown to the edge and discharged from the gap on the left side of the mixing cylinder. At the same time, the rotation of the perforated scraper column drives the stirring blades to rotate, which fully mixes the filtered raw materials and the raw materials added from the top filling pipe, thus ensuring that there is no uneven mixing in the final product.
[0007] As a further description of the above technical solution: The cutting mechanism includes two fixed columns, the bottom ends of which are fixedly connected to the top left and right sides of the support base, respectively. A sliding block is slidably connected to the front side of each fixed column, and a fixing bolt is threadedly connected to the inner wall of the sliding block. A cylinder is fixedly connected to the right side of the right fixed column, and an L-shaped plate is fixedly connected to one end of the cylinder. The left side of the L-shaped plate is fixedly connected to the right side of the right sliding block. Cutting blades are provided on the inner walls of the two sliding blocks, and the inner walls of the cutting blades are respectively engaged with the outer walls of the corresponding fixing bolts. A sliding groove is provided on the front side of each fixed column, and the inner wall of the sliding groove is slidably connected to the front side of the sliding block.
[0008] The above technical solution involves using a cylinder to extend and retract, causing the L-shaped plate and the right-side sliding block connected to the L-shaped plate to slide in the sliding groove in front of the fixed column. The two sliding blocks are fixed with a cutting blade by a fixing bolt. As the right-side sliding block moves, the cutting blade cuts the extruded material strip into granules, completing the granulation process of the cable sheath material. Different cutting blades can be replaced by rotating the fixing bolt, and the size of the final produced granules can be controlled by controlling the running speed of the cylinder.
[0009] As a further description of the above technical solution: The second-stage extrusion assembly includes a second DC motor, which is fixedly connected to the rear end of the second mixing drum, and the front end of the inner wall of the second mixing drum is threaded with a perforated disc.
[0010] Through the above technical solution: the mixed raw materials flow into the second mixing drum, and the internal structure is rotated by starting the second DC motor, which causes the mixed raw materials to undergo a second-stage extrusion. Finally, the extruded raw materials are discharged through the holes above the perforated plate.
[0011] As a further description of the above technical solution: A temperature control sensor is fixedly connected to the outer wall of the heating sleeve, and a concentration sensor is fixedly connected to the bottom left side of the mixing cylinder.
[0012] Through the above technical solutions: the temperature control sensor can monitor the temperature of the outer wall of the heating sleeve in real time, thereby achieving precise control of the temperature inside the heating sleeve; the concentration sensor allows operators to adjust the amount of material added or the mixing time according to the actual concentration, ensuring that the concentration of the material in the mixing drum meets the formulation requirements of the cable sheath material, thereby improving the consistency and stability of the product.
[0013] As a further description of the above technical solution: The outer wall of the mixing cylinder is connected to the middle left side of an annular collecting block. A partition is provided on the front side of the inner wall of the annular collecting block, and the outer wall of the partition is engaged with the inner wall of the annular collecting block.
[0014] Through the above technical solution: the annular collecting block can collect the impurities or particles that were not completely dissolved during the first-stage extrusion in the mixing cylinder, and the baffle can intercept the collected materials or impurities, making it convenient for subsequent centralized cleaning.
[0015] As a further description of the above technical solution: A column is fixedly connected to the top left of the mixing cylinder, and a warning light is fixedly connected to the top of the column. A filling pipe is connected to the top right of the mixing cylinder, and a pipe cap is threaded to the top of the outer wall of the filling pipe.
[0016] Through the above technical solutions: the column can stably position the warning light above the mixing drum at a suitable location, and the warning light can promptly remind the operator of equipment problems, prevent the failure from escalating, and ensure production safety and product quality. The filling pipe provides a dedicated channel for adding various materials into the mixing drum, and the pipe cover can effectively prevent the materials in the mixing drum from evaporating or leaking, and prevent external impurities from entering the mixing drum, affecting the mixing quality of materials and the stability of equipment operation.
[0017] As a further description of the above technical solution: An observation window is provided on the front side of the outer wall of the mixing cylinder, and an outer frame is fixedly connected to the outer wall of the observation window.
[0018] The above technical solution allows for observation of material mixing, color changes, and the presence of lumps or foreign objects through the observation window. The outer frame prevents the observation window from loosening or falling off due to equipment vibration or material impact.
[0019] As a further description of the above technical solution: A controller is fixedly connected to the front side of the bracket. The controller is electrically connected to DC motor one, heating sleeve, servo motor, DC motor two and cylinder respectively.
[0020] Through the above technical solution, the controller can control the starting and running power of DC motor one, heating sleeve, servo motor, DC motor two and cylinder respectively.
[0021] This utility model has the following beneficial effects: 1. In this utility model, by placing the raw material into the feeding cylinder, starting the DC motor and heating sleeve, the rotation drives the auger to push the material along the axial direction of the mixing cylinder and heat it, initially softening the material for subsequent processing. Impurities and undissolved raw materials are removed through the conical filter screen. The servo motor is started, the perforated scraper column rotates, and impurities are thrown out of the mixing cylinder. At the same time, the stirring blade rotates to mix the filtered raw material and the newly added raw material, thereby ensuring that the product is evenly mixed and there is no unmixed phenomenon.
[0022] 2. In this utility model, the L-shaped plate and the right sliding block slide in the sliding groove by starting the cylinder, which drives the cutting blade to cut the material strips into granules, thus completing the granulation of the cable sheath material. The operator can rotate the fixing bolt to replace the cutting blade, and at the same time, the size of the cut particles can be adjusted by controlling the cylinder speed. Attached Figure Description
[0023] Figure 1 This is a perspective view of a high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to the present invention. Figure 2This is a front view of a high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to the present invention. Figure 3 This is a top view of a high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to the present invention. Figure 4 This is a cross-sectional view of the mixing drum of a high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to the present invention. Figure 5 This is a schematic diagram of the cutting mechanism of a high-efficiency composite two-stage extrusion granulator for preparing cable sheaths proposed in this utility model.
[0024] Legend: 1. Support base; 2. Cutting mechanism; 201. Fixed column; 202. Sliding block; 203. Fixing bolt; 204. Cylinder; 205. L-shaped plate; 206. Cutting blade; 207. Sliding groove; 3. Bracket; 4. DC motor one; 5. Stirring drum one; 6. Feeding cylinder; 7. Heating sleeve; 8. Mixing cylinder; 9. Servo motor; 10. Screwdriver; 11. Conical filter screen; 12. Stirring blade; 13. Perforated scraper column; 14. DC motor two; 15. Stirring drum two; 16. Perforated plate; 17. Temperature control sensor; 18. Annular collection block; 19. Baffle; 20. Column; 21. Warning light; 22. Filling pipe; 23. Pipe cap; 24. Observation window; 25. Outer frame; 26. Controller; 27. Concentration sensor. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a high-efficiency composite two-stage extrusion granulator for preparing cable sheaths, including a support base 1, which provides a stable support foundation for the entire equipment. A bracket 3 is fixedly connected to the top right side of the support base 1, and a DC motor 4 is fixedly connected to the top of the bracket 3. A stirring drum 5 is fixedly connected to the top of the top of the bracket 3. A heating sleeve 7 is connected to the top of the outer wall of the stirring drum 5. Under the operation of the heating sleeve 7, the material inside the stirring drum 5 is heated to initially soften the material. A mixing drum 8 is connected to the left end of the stirring drum 5. An auger 10 is fixedly connected to the output end of the stirring drum 5 through the stirring drum 5. The rotation of the DC motor 4 will drive the auger 10 to rotate. Under the pushing action of the auger 10, the material moves along the axial direction of the stirring drum 5. A servo motor 9 is fixedly connected to the middle of the top of the mixing drum 8. A conical filter screen 11 is fixedly connected to the middle of the inner wall of the mixing drum 8. The output end of the servo motor 9 passes through the mixing drum 8 and is fixedly connected to the... A perforated scraper column 13 is connected. When the servo motor 9 is started, the perforated scraper column 13 is rotated. Under the action of centrifugation, impurities or raw materials that have not been completely melted are thrown to the edge. The bottom end of the perforated scraper column 13 passes through the conical filter screen 11 and is fixedly connected to multiple stirring blades 12. When the perforated scraper column 13 rotates, it drives the stirring blades 12 to rotate, which fully mixes the filtered raw materials and the raw materials added from the top filling pipe 22. The bottom end of the mixing cylinder 8 is connected to the second stirring cylinder 15. The rear end of the second stirring cylinder 15 is provided with a second-stage extrusion assembly. The front end of the top of the support base 1 is provided with a cutting mechanism 2. The second-stage extrusion assembly includes a second DC motor 14, which is fixedly connected to the rear end of the second stirring cylinder 15. The front end of the inner wall of the second stirring cylinder 15 is threadedly connected to a perforated plate 16. When the second DC motor 14 is started, it drives the internal structure to rotate, which causes the mixed raw materials to undergo second-stage extrusion. Finally, the extruded raw materials are discharged through the holes above the perforated plate 16. Specifically, the support base 1 provides a stable support foundation for the entire equipment. The raw materials to be processed are placed in the feeding cylinder 6, and then the DC motor 4 and heating sleeve 7 are started. The rotation of the DC motor 4 drives the auger 10 to rotate. Under the pushing action of the auger 10, the material moves along the axial direction of the mixing cylinder 5. Under the operation of the heating sleeve 7, the material in the mixing cylinder 5 is heated, so that the material is initially softened, which facilitates subsequent stirring and mixing. Then it will enter the mixing cylinder 8, and under the filtration of the conical filter screen 11, impurities or undissolved raw materials in the first-stage extrusion are filtered out. At this time, the servo motor is started. Motor 9 drives the perforated scraper column 13 to rotate. Under centrifugal force, impurities or undissolved raw materials are thrown to the edge and discharged from the gap on the left side of the mixing cylinder 8. At the same time, the rotation of the perforated scraper column 13 drives the stirring blade 12 to rotate, which fully mixes the filtered raw materials and the raw materials added from the top filling pipe 22. Then, the mixture flows into the second mixing cylinder 15. By starting DC motor 14, the internal structure is rotated, which causes the mixed raw materials to undergo a second-stage extrusion. Finally, the extruded raw materials are discharged through the holes above the perforated plate 16, thus ensuring that there is no unmixed phenomenon in the final product.
[0027] Reference Figure 1 , Figure 2 and Figure 5 The cutting mechanism 2 includes two fixed columns 201, the bottom ends of which are fixedly connected to the top left and right sides of the support base 1, respectively. A sliding block 202 is slidably connected to the front side of each fixed column 201, and a fixing bolt 203 is threaded onto the inner wall of the sliding block 202. A cylinder 204 is fixedly connected to the right side of the right fixed column 201. By controlling the operating speed of the cylinder 204, the size of the final produced particles is controlled. An L-shaped plate 205 is fixedly connected to one end of the cylinder 204. The left side of the L-shaped plate 205 is fixedly connected to the right side of the right sliding block 202. The two sliding blocks 202 are fixedly connected. The inner walls of the two sliding blocks 202 are provided with cutting blades 206. The inner walls of the cutting blades 206 are respectively engaged with the outer walls of the corresponding fixing bolts 203. The two sliding blocks 202 are fixed with the cutting blades 206 by the fixing bolts 203. The front side of the fixing column 201 is provided with a sliding groove 207. The inner wall of the sliding groove 207 is slidably connected to the front side of the sliding block 202. The cylinder 204 is activated to perform telescopic movement, which drives the L-shaped plate 205 and the right sliding block 202 connected to the L-shaped plate 205 to slide in the sliding groove 207 on the front side of the fixing column 201. Specifically, by activating the cylinder 204 to extend and retract, the L-shaped plate 205 and the right sliding block 202 connected to the L-shaped plate 205 slide within the sliding groove 207 on the front side of the fixed column 201. The two sliding blocks 202 are fixed to the cutting blade 206 by the fixing bolt 203. As the right sliding block 202 moves, the cutting blade 206 cuts the extruded material strip into granules, completing the granulation process of the cable sheath material. The operator can also change different cutting blades 206 by rotating the fixing bolt 203 and control the size of the final produced granules by controlling the running speed of the cylinder 204.
[0028] Reference Figure 1 , Figure 2 and Figure 4 A temperature control sensor 17 is fixedly connected to the outer wall of the heating sleeve 7, which can monitor the temperature of the outer wall of the heating sleeve 7 in real time. A concentration sensor 27 is fixedly connected to the bottom left side of the mixing cylinder 8, which allows the operator to adjust the amount of material added or the mixing time according to the actual concentration. An annular collecting block 18 is connected to the middle left side of the outer wall of the mixing cylinder 8. The annular collecting block 18 can collect impurities or particles that have not been completely dissolved during the first-stage extrusion in the mixing cylinder 8. The inner wall of the annular collecting block 18 is front A partition 19 is provided on the side, and the outer wall of the partition 19 engages with the inner wall of the annular collection block 18. The partition 19 can intercept the collected materials or impurities, which is convenient for subsequent centralized cleaning. A controller 26 is fixedly connected to the front side of the bracket 3. The controller 26 is electrically connected to the DC motor 4, the heating sleeve 7, the servo motor 9, the DC motor 14, and the cylinder 204 respectively. The controller 26 can control the starting and running power of the DC motor 4, the heating sleeve 7, the servo motor 9, the DC motor 14, and the cylinder 204 respectively. Specifically, the temperature sensor 17 can monitor the temperature of the outer wall of the heating sleeve 7 in real time, convert the temperature information into an electrical signal and transmit it to the controller 26, thereby achieving precise control of the temperature inside the heating sleeve 7 and ensuring that the heating temperature is always within the appropriate range for cable sheath material processing. The concentration sensor 27 allows the operator to adjust the amount of material added or the mixing time according to the actual concentration, ensuring that the concentration of the material in the mixing cylinder 8 meets the formula requirements of the cable sheath material, thereby improving the consistency and stability of the product. The annular collection block 18 can collect the impurities or particles that were not completely dissolved during the first-stage extrusion in the mixing cylinder 8. The baffle 19 can intercept the collected materials or impurities for subsequent centralized cleaning. The controller 26 can control the starting and running power of the DC motor 1 4, the heating sleeve 7, the servo motor 9, the DC motor 2 14 and the cylinder 204 respectively.
[0029] Reference Figure 1 , Figure 2 and Figure 3 A column 20 is fixedly connected to the top left of the mixing drum 8. The column 20 allows the warning light 21 to be stably positioned above the mixing drum 8. The top of the column 20 is fixedly connected to the warning light 21, which can promptly remind the operator of any equipment problems. A filling pipe 22 is connected to the top right of the mixing drum 8. The filling pipe 22 provides a dedicated channel for adding various materials into the mixing drum 8. A pipe cap 23 is threadedly connected to the top of the outer wall of the filling pipe 22. The pipe cap 23 can effectively prevent the material in the mixing drum 8 from evaporating or leaking, and prevent external impurities from entering the mixing drum 8. An observation window 24 is opened on the front side of the outer wall of the mixing drum 8. The observation window 24 can be used to observe the mixing status of the material, color changes, and whether there are any abnormal phenomena such as lumps or foreign objects. An outer frame 25 is fixedly connected to the outer wall of the observation window 24. The outer frame 25 can prevent the observation window 24 from loosening or falling off under equipment vibration. Specifically, the pillar 20 allows the warning light 21 to be securely positioned above the mixing drum 8. The warning light 21 can promptly alert operators to equipment problems, enabling them to take quick countermeasures, prevent the malfunction from escalating, and ensure production safety and product quality. The filling pipe 22 provides a dedicated channel for adding various materials into the mixing drum 8. The pipe cover 23 effectively prevents the evaporation and leakage of materials in the mixing drum 8 and avoids external impurities from entering the mixing drum 8, affecting the mixing quality and equipment operational stability. The observation window 24 allows observation of the material's mixing status, color changes, and the presence of any abnormal phenomena such as lumps or foreign objects. The outer frame 25 prevents the observation window 24 from loosening or falling off under equipment vibration or material impact.
[0030] Working Principle: First, the support base 1 provides a stable foundation for the entire equipment. The raw material to be processed is placed in the feeding cylinder 6. Then, the DC motor 4 and the heating sleeve 7 are started. The rotation of the DC motor 4 drives the auger 10 to rotate. The pushing action of the auger 10 causes the material to move axially along the mixing cylinder 5. Under the action of the heating sleeve 7, the material in the mixing cylinder 5 is heated, making the material initially softened, which facilitates subsequent stirring and mixing. Subsequently, the material enters the mixing cylinder 8, and under the filtering action of the conical filter screen 11, impurities or incompletely dissolved raw materials in the first-stage extrusion are filtered out. At this time, the servo motor 9 is started, which drives the perforated scraper column 13 to rotate. Using centrifugal force, impurities or incompletely dissolved raw materials are thrown to the edge and discharged from the gap on the left side of the mixing cylinder 8. At the same time, under the rotation of the perforated scraper column 13, the stirring blades 12 also begin to rotate, which filters the filtered raw materials and the raw materials added from the top filling pipe 22. After thorough mixing, the mixture flows into the mixing drum 15. By starting the DC motor 14, the internal structure is rotated, causing the mixed material to undergo a second-stage extrusion. Finally, the extruded material is discharged through the holes above the perforated plate 16, ensuring that there is no uneven mixing in the final product. The cutting mechanism 2, through the activation of the cylinder 204, achieves telescopic movement, thereby driving the L-shaped plate 205 and its connected right-side sliding block 202 to slide in the sliding groove 207 in front of the fixed column 201. The two sliding blocks 202 are fixed to the cutting blade 206 by the fixing bolts 203. As the right-side sliding block 202 moves, the cutting blade 206 cuts the extruded material strip into granules, completing the granulation process of the cable sheath material. The operator can also change different cutting blades 206 by rotating the fixing bolts 203. By controlling the running speed of the cylinder 204, the size of the final output granules can be precisely controlled.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency composite two-stage extrusion granulator for preparing cable sheaths, comprising a support base (1), characterized in that: A bracket (3) is fixedly connected to the top right side of the support base (1). A DC motor (4) is fixedly connected to the top of the bracket (3). A stirring drum (5) is fixedly connected to the top left side of the bracket (3). A heating sleeve (7) is connected to the top of the outer wall of the stirring drum (5). A mixing drum (8) is connected to the left end of the stirring drum (5). An auger (10) is fixedly connected to the output end of the stirring drum (5) through the stirring drum (5). A servo motor (9) is fixedly connected to the top center of the mixing drum (8). A conical filter screen (11) is fixedly connected to the middle of the inner wall of the mixing cylinder (8). The output end of the servo motor (9) passes through the mixing cylinder (8) and is fixedly connected to a perforated scraper column (13). The bottom end of the perforated scraper column (13) passes through the conical filter screen (11) and is fixedly connected to multiple stirring blades (12). The bottom end of the mixing cylinder (8) is connected to the second stirring cylinder (15). The rear end of the second stirring cylinder (15) is provided with a second-stage extrusion assembly. The top front end of the support base (1) is provided with a cutting mechanism (2).
2. The high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to claim 1, characterized in that: The cutting mechanism (2) includes two fixed columns (201). The bottom ends of the two fixed columns (201) are respectively fixedly connected to the top left and right sides of the support base (1). A sliding block (202) is slidably connected to the front side of the fixed column (201). A fixing bolt (203) is threadedly connected to the inner wall of the sliding block (202). A cylinder (204) is fixedly connected to the right side of the right fixed column (201). An L-shaped plate (205) is fixedly connected to one end of the cylinder (204). The left side of the L-shaped plate (205) is fixedly connected to the right side of the right sliding block (202). A cutting blade (206) is provided on the inner wall of the two sliding blocks (202). The inner wall of the cutting blade (206) is engaged with the outer wall of the corresponding fixing bolt (203). A sliding groove (207) is opened on the front side of the fixed column (201). The inner wall of the sliding groove (207) is slidably connected to the front side of the sliding block (202).
3. The high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to claim 1, characterized in that: The second-stage extrusion assembly includes a second DC motor (14), which is fixedly connected to the rear end of the second stirring drum (15). The front end of the inner wall of the second stirring drum (15) is threaded with a perforated plate (16).
4. The high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to claim 1, characterized in that: A temperature control sensor (17) is fixedly connected to the outer wall of the heating sleeve (7), and a concentration sensor (27) is fixedly connected to the bottom left side of the mixing cylinder (8).
5. The high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to claim 1, characterized in that: The mixing cylinder (8) has an annular collecting block (18) connected to the middle left side of its outer wall. A partition (19) is provided on the front side of the inner wall of the annular collecting block (18). The outer wall of the partition (19) is engaged with the inner wall of the annular collecting block (18).
6. The high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to claim 1, characterized in that: A column (20) is fixedly connected to the top left of the mixing cylinder (8), and a warning light (21) is fixedly connected to the top of the column (20). A filling pipe (22) is connected to the top right of the mixing cylinder (8), and a pipe cap (23) is threadedly connected to the top of the outer wall of the filling pipe (22).
7. The high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to claim 1, characterized in that: An observation window (24) is provided on the front side of the outer wall of the mixing cylinder (8), and an outer frame (25) is fixedly connected to the outer wall of the observation window (24).
8. The high-efficiency composite two-stage extrusion granulator for preparing cable sheaths according to claim 2, characterized in that: The front side of the bracket (3) is fixedly connected to a controller (26), which is electrically connected to DC motor one (4), heating sleeve (7), servo motor (9), DC motor two (14) and cylinder (204).