Extrusion pelletizing production line with interlocking relation

Abstract

The invention relates to the technical field of extrusion pelletizing machines, and discloses an extrusion pelletizing production line with an interlocking relation, which comprises a reactor, the outlet end of the reactor is fixedly connected with a pump A, the output end of the pump A is connected with a three-way pipe, the other two ends of the three-way pipe are respectively and fixedly connected with an extruder main body, and the three-way pipe is aligned with a feed hopper of the extruder main body 1. A water cooling pool is arranged on one side of the output end of the extruder body, a granulator body is arranged on the other side of the water cooling pool, a granulating opening is fixedly connected to the other side of the granulator body, a protective cover is fixedly connected to the side, close to the granulating opening, of the granulator body, and a granule outlet is formed in the other end of the protective cover in a penetrating mode. According to the extruding and pelletizing production line with the interlocking relation, when a single production line jumps and stops due to abnormal pressure, the pump A automatically decelerates and switches a control mode, the pressure of the other production line is prevented from exceeding the limit, the remaining production lines are ensured to maintain stable operation, and material waste and low-quality product generation are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of extrusion pelletizers, and particularly to an extrusion pelletizing production line with an interlocking relationship. Background Art

[0002] Polycarbonate (abbreviated as PC) is a thermoplastic plastic with very high impact strength, high transparency, and good mechanical properties and heat resistance. In order to facilitate subsequent processing, transportation, and use, polycarbonate often needs to be cut into pellets.

[0003] Currently, the production line of polycarbonate mainly consists of an extruder (where polycarbonate resin melts under high temperature and pressure and forms a continuous strip through a die), a cooling section (the hot polymer strip coming out of the extruder is cooled by water cooling, and the cooled strip becomes firm enough for cutting), and a cutting device (the cooled strip enters the cutting device where it is cut into small particles of a certain length).

[0004] In the existing production line, due to the limitations of the load capacities of the extruder and the pelletizer, the polycarbonate melt material after the reaction needs to be processed on two parallel extrusion pelletizing production lines (i.e., interlocking production lines). This design can not only improve production efficiency but also effectively reduce the operating load of a single device.

[0005] However, in the current polycarbonate extrusion pelletizing interlocking production line during the production process, the extruded strip material usually needs to be cooled in a water tank until it hardens, and then cut by a subsequent cutting device. However, the granular polycarbonate after cutting still retains a certain degree of moisture, and the existing production line is not equipped with an effective treatment device for this part of the moisture. The residual moisture not only easily causes adhesion between the particles, affecting product quality, but also increases the time and energy consumption of the subsequent drying process. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides an extrusion pelletizing production line with an interlocking relationship, which can remove the residual moisture on the surface of polycarbonate pellets by vibrating a vibrating screen at the pelletizing ports of two interlocking production lines, reducing the time and energy consumption of the subsequent drying process.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an extrusion pelletizing production line with an interlocking relationship, comprising a reactor, the outlet end of the reactor is fixedly connected to a pump A, the output end of the pump A is connected to a tee, the other two ends of the tee are respectively fixedly connected to an extruder body, and the tee is aligned with the feed hopper of the extruder body 1, a water cooling pool is provided on one side of the output end of the extruder body, a pelletizer body is provided on the other side of the water cooling pool, a pelletizing port is fixedly connected to the other side of the pelletizer body, a protective cover is fixedly connected to the side of the pelletizer body close to the pelletizing port, a pelletizing port is penetrated through the other end of the protective cover, and the inner wall of the protective cover Elastic components are connected to both sides of the protective cover, and the upper ends of the two elastic components are connected to a vibration frame at the same time. A vibration net is fixedly connected to the inside of the vibration frame. The vibration frame and the vibration net are both located below the pelletizing opening. A power mechanism is connected to the outside of the protective cover, and the output end of the power mechanism is connected to a transmission component. The other two ends of the transmission component are connected to toggle components. The other ends of the two toggle components penetrate into the interior of the protective cover, and the two toggle components are both located below the vibration frame. A P0 pressure detector is arranged in the pipeline at the output end of pump A, and a P1 pressure detector and a P2 pressure detector are respectively arranged in the pipeline between the tee pipe and the two extruder bodies.

[0008] Furthermore, the elastic component includes a support plate and several springs, the side wall of the support plate is fixedly connected to the inner wall of the protective cover, the upper surface of the support plate is fixedly connected to the lower ends of the several springs, and the upper ends of the several springs are fixedly connected to the bottom surface of one side of the vibration frame.

[0009] Furthermore, the power mechanism includes a transmission motor and a bracket, one end of the bracket is fixedly connected to one side of the outer wall of the protective cover, the other end of the bracket is fixedly connected to the outer wall of the transmission motor, and the output shaft of the transmission motor is connected to the transmission assembly.

[0010] Furthermore, the transmission assembly includes an active rod, a driven rod, a transmission belt and two pulleys. The output shaft of the transmission motor is fixedly connected to one end of the active rod. The active rod and the driven rod are arranged in parallel, and the ends of the active rod and the driven rod away from the transmission motor both penetrate into the interior of the protective cover and are respectively connected to the two toggle assemblies. The ends of the active rod and the driven rod located outside the protective cover are respectively fixedly connected to the two pulleys, and the transmission belt is sleeved on the outside of the two pulleys.

[0011] Furthermore, the two toggle assemblies each include an impact plate and a plurality of eccentric blocks, both ends of the two impact plates are fixedly connected to the inner wall of the vibration frame, one end of the two groups of eccentric blocks are respectively fixedly connected to one end of the active rod and the driven rod located inside the protective cover, and the other ends of the two groups of eccentric blocks are respectively against the two impact plates.

[0012] Furthermore, a water receiving component is connected inside one end of the protective cover close to the pelletizing opening. A filtering component and a reflux mechanism are connected inside the water receiving component. The output end of the reflux mechanism penetrates to the outside of the protective cover and is connected to the water cooling pool. A cleaning opening is formed through the bottom of the protective cover at the end close to the pelletizing opening, and the water receiving component is located within the cleaning opening.

[0013] Furthermore, the water receiving component includes a collection box, a handle, and a plurality of mounting blocks. The outer wall of the collection box is slidably connected to the inner wall of the cleaning opening. One end of the collection box located outside the protective cover is fixedly connected to both the handle and the plurality of mounting blocks. The plurality of mounting blocks are fixedly connected to the protective cover through bolts. Both the filtering component and the reflux mechanism are located inside the collection box.

[0014] Furthermore, the filtering component includes a support net and a pellet receiving net. The support net is fixedly connected to the inner wall of the collection box on the side close to the pelletizing opening. The pellet receiving net is slidably connected inside the support net, and through holes for carrying by hand are formed through both ends of the pellet receiving net.

[0015] Furthermore, the reflux mechanism includes a water outlet pipe, a limiting block, and a water pump. The outer wall of the water pump is fixedly connected to the inner wall of the collection box. The output end of the water pump is fixedly connected to one end of the water outlet pipe. The other end of the water outlet pipe penetrates to the outside of the protective cover and is fixedly connected to the limiting block. The bottom surface of the limiting block is fixedly connected to the upper surface of the water cooling pool.

[0016] Furthermore, two vertically aligned water level monitoring sensors are fixedly connected to the inner wall of the collection box. One of the water level monitoring sensors is located above the input end of the water pump, and the other water level monitoring sensor is at the same height as the input end of the water pump.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. For this extrusion pelletizing production line with an interlocking relationship, when a single production line stops due to abnormal pressure, pump A automatically reduces its speed and switches the control mode to prevent the pressure of the other line from exceeding the limit, ensuring the stable operation of the remaining production lines, reducing material waste and the generation of low-quality products;

[0019] 2. For this extrusion pelletizing production line with an interlocking relationship, through the coordinated vibration of the vibration frame and the vibration mesh, the moisture remaining on the surface of the polycarbonate particles can be effectively separated, reducing the time and energy consumption of the subsequent drying process, and avoiding quality problems caused by particle adhesion;

[0020] 3. For this extrusion pelletizing production line with an interlocking relationship, the water can be recycled, significantly reducing the water consumption during the production process;

[0021] 4. For this extrusion pelletizing production line with an interlocking relationship, the dual water level monitoring sensors automatically start and stop the water pump according to the water level in the collection box, avoiding equipment idling or overflow, saving electricity, and prolonging the service life of the water pump;

[0022] 5. For the extrusion granulation production line with an interlocking relationship, a particle receiving net is arranged below the vibrating net, which can intercept accidentally dropped particles, avoid material waste, and further separate water and particles through a filtering component to improve the recycling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall appearance of the extrusion granulation production line of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall appearance of the extrusion granulation production line from another perspective of the present invention;

[0025] Figure 3 It is a detailed connection schematic diagram of components such as the granulator main body, protective cover and power mechanism of the present invention;

[0026] Figure 4 It is an exploded schematic diagram of components such as the protective cover, collection box and particle receiving net of the present invention;

[0027] Figure 5 For the present invention Figure 4 An enlarged schematic diagram of part A in;

[0028] Figure 6 It is a detailed connection schematic diagram of components such as the vibrating frame, vibrating net and power mechanism of the present invention;

[0029] Figure 7 For the present invention Figure 6 An exploded schematic diagram of each component in;

[0030] Figure 8 For the present invention Figure 7 An enlarged schematic diagram of part B in;

[0031] Figure 9 It is a schematic diagram of the interlocking production line of the present invention.

[0032] In the figure: 1. Extruder main body; 2. Water cooling tank; 3. Granulator main body; 4. Protective cover; 5. Collection box; 6. Handle; 7. Water outlet pipe; 8. Driving rod; 9. Driven rod; 10. Driving motor; 11. Driving belt; 12. Belt pulley; 13. Particle outlet; 14. Vibrating frame; 15. Vibrating net; 16. Granulation port; 17. Spring; 18. Support plate; 19. Cleaning port; 20. Mounting block; 21. Support net; 22. Particle receiving net; 23. Hand-held port; 24. Limit block; 25. Water pump; 26. Bracket; 27. Impact plate; 28. Eccentric block; 29. Water level monitoring sensor. DETAILED DESCRIPTION OF THE INVENTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] See also Figures 1-9 An extrusion pelletizing production line with an interlocking relationship includes a reactor, a pump A is fixedly connected to the outlet end of the reactor, a three-way pipe is connected to the output end of the pump A, the other two ends of the three-way pipe are respectively fixedly connected to an extruder body 1, and the three-way pipe is aligned with the feed hopper of the extruder body 1, a water cooling pool 2 is arranged on one side of the output end of the extruder body 1, a pelletizer body 3 is arranged on the other side of the water cooling pool 2, a pelletizer opening 16 is fixedly connected to the other side of the pelletizer body 3, a protective cover 4 is fixedly connected to the side of the pelletizer body 3 close to the pelletizer opening 16, a pelletizer opening 13 is opened through the other end of the protective cover 4, and elastic groups are connected to both sides of the inner wall of the protective cover 4 The upper ends of the two elastic components are simultaneously connected to a vibration frame 14, the interior of the vibration frame 14 is fixedly connected to a vibration net 15, the vibration frame 14 and the vibration net 15 are both located below the pelletizing opening 16, the outside of the protective cover 4 is connected to a power mechanism, the output end of the power mechanism is connected to a transmission component, the other two ends of the transmission component are connected to toggle components, the other ends of the two toggle components pass through the interior of the protective cover 4, and the two toggle components are both located below the vibration frame 14, a P0 pressure detector is arranged in the pipeline at the output end of the pump A, and a P1 pressure detector and a P2 pressure detector are respectively arranged in the pipeline between the tee pipe and the two extruder bodies 1.

[0035] It should be noted here that the extruder body 1, water cooling pool 2, pelletizer body 3 and pelletizer port 16 mentioned above are all conventional technologies of existing production lines. Since their internal structures and principles are irrelevant to this application, their internal structures are not described in detail here.

[0036] As a preferred solution of the present invention, the elastic component includes a support plate 18 and a plurality of springs 17, the side wall of the support plate 18 is fixedly connected to the inner wall of the protective cover 4, the upper surface of the support plate 18 is fixedly connected to the lower ends of the plurality of springs 17, and the upper ends of the plurality of springs 17 are fixedly connected to the bottom surface of one side of the vibration frame 14.

[0037] More specifically, by setting up an elastic component, support can be provided to the vibration frame 14 and the vibration net 15, and at the same time, in conjunction with the toggle component, the vibration of the vibration frame 14 and the vibration net 15 can be controlled to separate water from the surface of the polycarbonate particles that are pelletized by the pelletizer body 3 and fall from the pelletizing port 16.

[0038] As a preferred solution of the present invention, the power mechanism includes a transmission motor 10 and a bracket 26, one end of the bracket 26 is fixedly connected to one side of the outer wall of the protective cover 4, and the other end of the bracket 26 is fixedly connected to the outer wall of the transmission motor 10, and the output shaft of the transmission motor 10 is connected to the transmission assembly.

[0039] More specifically, by providing a power mechanism, a power source can be provided to the transmission assembly and the shifting assembly to achieve vibration of the vibration frame 14 and the vibration net 15 .

[0040] As a preferred solution of the present invention, the transmission assembly includes an active rod 8, a driven rod 9, a transmission belt 11 and two pulleys 12. The output shaft of the transmission motor 10 is fixedly connected to one end of the active rod 8. The active rod 8 and the driven rod 9 are arranged in parallel, and the ends of the active rod 8 and the driven rod 9 away from the transmission motor 10 both penetrate into the interior of the protective cover 4 and are respectively connected to the two toggle assemblies. The ends of the active rod 8 and the driven rod 9 located outside the protective cover 4 are respectively fixedly connected to the two pulleys 12, and the transmission belt 11 is sleeved on the outside of the two pulleys 12.

[0041] More specifically, by providing a transmission assembly, the power source provided by the power mechanism can be stably applied to the toggle assembly, and it should be emphasized here that the number of the active rod 8, the driven rod 9, the transmission belt 11 and the two pulleys 12 in the transmission assembly is not limited to one group (e.g. Figure 3 , Figure 6 and Figure 7 As shown), multiple groups can be combined to control the vibration of different positions of the vibration frame 14 and the vibration network 15.

[0042] As a preferred solution of the present invention, the two toggle assemblies each include an impact plate 27 and a plurality of eccentric blocks 28, both ends of the two impact plates 27 are fixedly connected to the inner wall of the vibration frame 14, one end of the two groups of eccentric blocks 28 are respectively fixedly connected to one end of the active rod 8 and the driven rod 9 located inside the protective cover 4, and the other ends of the two groups of eccentric blocks 28 are respectively abutted against the two impact plates 27.

[0043] More specifically, by providing a toggle assembly, it can follow the rotation of the transmission assembly to cooperate with its own eccentric rotation to hit the vibration frame 14 and the vibration net 15, thereby causing the vibration frame 14 and the vibration net 15 to vibrate.

[0044] As a preferred solution of the present invention, a water receiving assembly is connected to the interior of the protective cover 4 near the pelletizing opening 16, a filtering assembly and a reflux mechanism are connected to the interior of the water receiving assembly, an output end of the reflux mechanism penetrates to the outside of the protective cover 4 and is connected to the water cooling pool 2, a cleaning opening 19 is penetrated and opened at the bottom of the protective cover 4 near the pelletizing opening 16, and the water receiving assembly is located in the cleaning opening 19;

[0045] The water receiving assembly includes a collection box 5, a handle 6, and a plurality of mounting blocks 20. The outer wall of the collection box 5 is slidably connected to the inner wall of the cleaning port 19. One end of the collection box 5 located outside the protective cover 4 is fixedly connected to both the handle 6 and the plurality of mounting blocks 20. The plurality of mounting blocks 20 are tightly connected to the protective cover 4 by bolts. Both the filtering assembly and the reflux mechanism are located inside the collection box 5.

[0046] More specifically, when the water on the surface of the polycarbonate particles is separated and falls from the holes of the vibrating mesh 15 due to the continuous vibration of the vibrating frame 14 and the vibrating mesh 15, since the quantity produced in one day is large and the amount of water remaining on the surfaces of polycarbonate particles with different diameters is also different, in order to avoid waste of water resources caused by long-term vibration separation, at this time, by setting the water receiving assembly, the separated water can be collected (because this water is only adhered to the surface of the polycarbonate particles and is not very dirty itself) for reuse, reducing waste of water resources.

[0047] By setting the cleaning port 19, after continuously working for a period of time (such as one week or half a month), the water receiving assembly can be pulled out from inside the protective cover 4 to clean the inside of the water receiving assembly and overhaul the reflux mechanism.

[0048] As a preferred solution of the present invention, the filtering assembly includes a support mesh 21 and a particle receiving mesh 22. The support mesh 21 is fixedly connected to the inner wall of the collection box 5 close to the granulation port 16. The particle receiving mesh 22 is slidably connected inside the support mesh 21, and both ends of the particle receiving mesh 22 are provided with handle openings 23.

[0049] More specifically, since the water receiving assembly is located below the granulation port 16, during vibration, some polycarbonate particles may fall from the end of the vibrating frame 14 into the water receiving assembly. At this time, by setting the filtering assembly, the fallen polycarbonate particles can be collected to avoid waste, and at the same time, it can also prevent the fallen polycarbonate particles from affecting the operation of the reflux mechanism.

[0050] As a preferred solution of the present invention, the reflux mechanism includes a water outlet pipe 7, a limiting block 24, and a water pump 25. The outer wall of the water pump 25 is fixedly connected to the inner wall of the collection box 5. The output end of the water pump 25 is fixedly connected to one end of the water outlet pipe 7. The other end of the water outlet pipe 7 penetrates to the outside of the protective cover 4 and is fixedly connected to the limiting block 24. The bottom surface of the limiting block 24 is fixedly connected to the upper surface of the water cooling pool 2.

[0051] More specifically, by setting the reflux mechanism, the water collected inside the water receiving assembly can be pumped back to the water cooling pool 2 by the water pump 25 to achieve recycling.

[0052] As a preferred embodiment of the present invention, two vertically aligned water level monitoring sensors 29 are fixedly connected to the inner wall of the collection box 5. One of the water level monitoring sensors 29 is located above the input end of the water pump 25, and the other water level monitoring sensor 29 is at the same height as the input end of the water pump 25.

[0053] More specifically, by setting the water level monitoring sensors 29, when the water level reaches the height of the upper water level monitoring sensor 29, the water pump 25 can be automatically started, and when the water level drops to the height of the lower water level monitoring sensor 29, the water pump 25 can be automatically stopped. Since the speed of vibrating water filtration is very slow, it is not necessary to always start the water pump 25, which not only saves electricity but also reduces the damage probability of the water pump 25.

[0054] As Figures 1 to 9 shown, when the extrusion granulation production line with an interlocking relationship in the present invention is in use, the following steps can be followed:

[0055] First, add the raw materials for producing polycarbonate to the reactor in proportion for mixing and reaction. The molten material coming out of the reactor is transported by pump A and evenly distributed to two extrusion granulation production lines 1# and 2#. The rotation speed of pump A is controlled by the real-time pressure of the pressure gauge P0. When the pressure of P0 is higher than the set value, the rotation speed of pump A is reduced to reach the pressure set value. When the pressure of P0 is lower than the set value, the rotation speed of pump A is increased to reach the pressure set value;

[0056] To protect the equipment, there is a pressure interlock for the feeding of the extrusion granulation production line. When the pressure is higher than the interlock value, the extrusion granulation production line will automatically trip. The pressure of the extrusion granulation production line is monitored by P1 and P2. Due to various reasons such as equipment and process, one of the extrusion production lines may suddenly trip. Pump A immediately drops to 30% of its original rotation speed and runs at this low rotation speed for 2 seconds in a fixed rotation speed mode. After 2 seconds, it automatically switches back to controlling the rotation speed of pump A by the pressure of P0;

[0057] After the new interlock is triggered, the rotation speed of pump A drops from 7.8 rpm to 2.3 rpm. After running for 2 seconds and switching back to automatic control, the rotation speed continues to decrease to 1.5 rpm and then gradually increases to 3.8 rpm. This process slows down the increasing trend of the P2 pressure. The P2 pressure rises to a maximum of 55 barG and does not reach the interlock value of 80 barG, so the interlock shutdown is not triggered, successfully protecting the normal operation of the other extrusion granulation production line;

[0058] After the interlock control program is successfully put into use, when one of the lines suddenly stops, the other production line can continue to maintain production. Only by adjusting the production load can the purpose of not affecting the product quality be achieved and the operation of the production line be maintained, so that the material will not turn color or have an uncontrollable molecular weight due to long-term non-flow, thereby greatly reducing the production of inferior products;

[0059] As the polycarbonate with good mixing reaction flows into the feed hopper of the extruder body 1 through the three-way pipe to two or one of them (when the other fails), it will be pushed by the extruder body 1 towards the output end and extruded into strips through the output port. The strip-shaped polycarbonate will fall into the water cooling tank 2 and be soaked by the water cooling tank 2, thus accelerating cooling and hardening. Then the hardened strip-shaped polycarbonate will enter the internal of the granulator body 3 and be cut into granular by the cutting knife inside the granulator body 3. Subsequently, the granular polycarbonate slides out from the granulation port 16;

[0060] The polycarbonate particles sliding out from the granulation port 16 will exactly fall on the vibrating mesh 15 in the middle of the vibrating frame 14. At the same time as the granulator body 3 starts cutting, the drive motor 10 has also started. The output shaft of the drive motor 10 drives the driving rod 8 to rotate. After the driving rod 8 rotates, it will drive one of the pulleys 12 connected to its surface to rotate. As this pulley 12 rotates, it can drive the other pulley 12 to rotate around the driven rod 9 as the axis through the drive belt 11;

[0061] As the driving rod 8 and the driven rod 9 rotate, the two groups of eccentric blocks 28 connected to their surfaces rotate together, and the orientations of the two groups of eccentric blocks 28 are different (such as Figure 7 ), so they can respectively impact the two impact plates 27. After the two impact plates 27 are stressed, they will pull the springs 17 to vibrate up and down, and at the same time drive the vibrating frame 14 and the vibrating mesh 15 to vibrate, thereby vibrating the water adhered to the surface of the polycarbonate particles falling above the vibrating mesh 15 down into the collection box 5 below the vibrating mesh 15;

[0062] As the water in the collection box 5 becomes more and more, when the water level reaches the water level monitoring sensor 29 located above the inside of the collection box 5, at this time the water pump 25 starts. The input end of the water pump 25 sucks water from the inside of the collection box 5 and pumps it into the water outlet pipe 7 through the output end, and then returns to the water cooling tank 2 from the other end of the water outlet pipe 7;

[0063] As the water pump 25 continues to operate, the water level inside the collection box 5 gradually drops. When the water level drops to the height of the water level monitoring sensor 29 located at the lower position, the water pump 25 automatically stops and waits for the next start;

[0064] After continuous use for a period of time (such as one week or half a month), at this time the staff loosens the bolts between the mounting block 20 and the protective cover 4, and then pulls the handle 6, and the collection box 5, the support mesh 21 and the particle receiving mesh 22 can be pulled out together from the cleaning port 19, so as to clean the inside of the collection box 5 and perform secondary treatment on the dropped polycarbonate particles collected inside the particle receiving mesh 22

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extrusion granulation production line with an interlocking relationship, characterized in that: The invention comprises a reactor, wherein the outlet end of the reactor is fixedly connected to a pump A, the output end of the pump A is connected to a three-way pipe, the other two ends of the three-way pipe are respectively fixedly connected to an extruder body (1), and the three-way pipe is aligned with the feed hopper of the extruder body 1, a water cooling pool (2) is arranged on one side of the output end of the extruder body (1), a pelletizer body (3) is arranged on the other side of the water cooling pool (2), a pelletizer opening (16) is fixedly connected to the other side of the pelletizer body (3), a protective cover (4) is fixedly connected to the side of the pelletizer body (3) close to the pelletizer opening (16), a pelletizer opening (13) is penetrated and opened at the other end of the protective cover (4), elastic components are connected to the inner wall of the protective cover (4), and the two The upper end of the elastic component is simultaneously connected to a vibration frame (14), the interior of the vibration frame (14) is fixedly connected to a vibration net (15), the vibration frame (14) and the vibration net (15) are both located below the pelletizing opening (16), the exterior of the protective cover (4) is connected to a power mechanism, the output end of the power mechanism is connected to a transmission component, the other two ends of the transmission component are both connected to a toggle component, the other ends of the two toggle components both penetrate into the interior of the protective cover (4), and the two toggle components are both located below the vibration frame (14), a P0 pressure detector is provided in the pipeline at the output end of the pump A, and a P1 pressure detector and a P2 pressure detector are respectively provided in the pipeline between the three-way pipe and the two extruder bodies (1).

2. The extrusion granulation production line with an interlocking relationship according to claim 1, characterized in that: The elastic component comprises a support plate (18) and a plurality of springs (17); the side wall of the support plate (18) is fixedly connected to the inner wall of the protective cover (4); the upper surface of the support plate (18) is fixedly connected to the lower ends of the plurality of springs (17); and the upper ends of the plurality of springs (17) are fixedly connected to the bottom surface of one side of the vibration frame (14).

3. The extrusion granulation production line with an interlocking relationship according to claim 2, wherein: The power mechanism comprises a transmission motor (10) and a bracket (26), one end of the bracket (26) is fixedly connected to one side of the outer wall of the protective cover (4), the other end of the bracket (26) is fixedly connected to the outer wall of the transmission motor (10), and the output shaft of the transmission motor (10) is connected to the transmission assembly.

4. A pelletizing production line with an interlocking relationship according to claim 3, characterized in that: The transmission assembly comprises an active rod (8), a driven rod (9), a transmission belt (11) and two pulleys (12); the output shaft of the transmission motor (10) is fixedly connected to one end of the active rod (8); the active rod (8) and the driven rod (9) are arranged in parallel; the ends of the active rod (8) and the driven rod (9) away from the transmission motor (10) both penetrate into the interior of the protective cover (4) and are respectively connected to the two toggle assemblies; the ends of the active rod (8) and the driven rod (9) located outside the protective cover (4) are respectively fixedly connected to the two pulleys (12); and the transmission belt (11) is sleeved outside the two pulleys (12).

5. A pelletizing production line with an interlocking relationship according to claim 4, characterized in that: Both of the two toggling components include an impact plate (27) and a plurality of eccentric blocks (28). Both ends of the two impact plates (27) are fixedly connected to the inner wall of the vibration frame (14). One ends of the two groups of eccentric blocks (28) are respectively fixedly connected to one ends of the driving rod (8) and the driven rod (9) located inside the protective cover (4). The other ends of the two groups of eccentric blocks (28) are respectively abutted against the two impact plates (27).

6. The extrusion granulation production line with an interlocking relationship according to claim 5, characterized in that: An internal connection of the water receiving component is arranged inside the protective cover (4) at one end close to the granulation port (16). A filtering component and a reflux mechanism are connected inside the water receiving component. The output end of the reflux mechanism penetrates to the outside of the protective cover (4) and is connected to the water cooling pool (2). A cleaning port (19) is penetrated and opened at the bottom of the protective cover (4) at one end close to the granulation port (16). The water receiving component is located inside the cleaning port (19).

7. The extrusion granulation production line with an interlocking relationship according to claim 6, characterized in that: The water receiving component includes a collection box (5), a handle (6) and a plurality of mounting blocks (20). The outer wall of the collection box (5) is slidably connected to the inner wall of the cleaning port (19). One end of the collection box (5) located outside the protective cover (4) is fixedly connected to both the handle (6) and the plurality of mounting blocks (20). The plurality of mounting blocks (20) are fixedly connected to the protective cover (4) by bolts. Both the filtering component and the reflux mechanism are located inside the collection box (5).

8. A pelletizing production line with an interlocking relationship according to claim 7, characterized in that: The filtering component includes a support mesh (21) and a particle receiving mesh (22). The support mesh (21) is fixedly connected to the inner wall of the collection box (5) on the side close to the granulation port (16). The particle receiving mesh (22) is slidably connected inside the support mesh (21). Both ends of the particle receiving mesh (22) are penetrated and provided with carrying ports (23).

9. The extrusion granulation production line with an interlocking relationship according to claim 8, characterized in that: The reflux mechanism includes a water outlet pipe (7), a limiting block (24) and a water pump (25). The outer wall of the water pump (25) is fixedly connected to the inner wall of the collection box (5). The output end of the water pump (25) is fixedly connected to one end of the water outlet pipe (7). The other end of the water outlet pipe (7) penetrates to the outside of the protective cover (4) and is fixedly connected to the limiting block (24). The bottom surface of the limiting block (24) is fixedly connected to the upper surface of the water cooling pool (2).

10. A pelletizing production line with an interlocking relationship according to claim 9, characterized in that: Two vertically aligned water level monitoring sensors (29) are fixedly connected to the inner wall of the collection box (5). One of the water level monitoring sensors (29) is located above the input end of the water pump (25), and the other water level monitoring sensor (29) is flush with the input end of the water pump (25).

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