A defective plastic particle homogenization device and control method thereof

Abstract

The invention relates to the technical field of plastic particle homogenization, in particular to a device for homogenizing defective plastic particles and a control method thereof, comprising a homogenizing cylinder, which is supported and installed by a bracket, and further comprising: a feeding mechanism, which is installed on the top of the homogenizing cylinder and is used for feeding into the interior of the homogenizing cylinder; a rolling homogenizing component, which is driven by a driving component installed at the end of the homogenizing cylinder and is used for unidirectionally driving plastic particles to roll and grind the plastic particles during rolling, wherein the rolling homogenizing component comprises a plurality of grinding sections for grinding the plastic particles and a plurality of separation sections for sieving the polished qualified plastic particles; the device is advantageously provided with the rolling homogenizing component, so as to avoid that all the plastic particles completely pass through the grinding section, resulting in the situation that the plastic particles still have uneven particle size after homogenization, thereby being advantageously improved in the homogenization effect when the plastic particles are homogenized.

Description

Technical Field

[0001] The present invention relates to the field of plastic particle homogenization, and in particular to a defective plastic particle homogenization device and a control method thereof. Background Art

[0002] Plastic particles, also known as plastic particles or resin particles, are a basic form of plastic raw materials. They are tiny solid particles made by subjecting polymers (such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, etc.) to a series of processing steps, including synthesis, melting, extrusion granulation and other steps.

[0003] In the prior art, the size of plastic particles is inconsistent due to the cutting during the extrusion granulation process. Therefore, after the extrusion granulation is completed, the cut plastic particles need to be homogenized. The plastic particles are impacted at multiple angles so that the edges of the plastic particles are worn during the impact process, so that the particle size of the plastic particles is uniform after the impact and wear. However, during the impact process, the plastic particles are excessively worn, so that the particle size of the plastic particles is still uneven after the impact. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a defective plastic particle homogenization device and a control method thereof.

[0005] In a first aspect, the present invention provides a defective plastic particle homogenization device, comprising a homogenization cylinder, the homogenization cylinder being supported and installed by a bracket, and further comprising:

[0006] A feeding mechanism, installed on the top of the homogenizing cylinder, for feeding materials into the interior of the homogenizing cylinder;

[0007] A rolling homogenizing assembly is installed inside the homogenizing cylinder and driven by a driving assembly installed at the end of the homogenizing cylinder, and is used to drive the plastic particles in one direction to roll and grind the plastic particles during the rolling process. The rolling homogenizing assembly includes multiple grinding sections for grinding the plastic particles and multiple separation sections for screening the qualified plastic particles after grinding. The grinding sections and the separation sections are arranged at intervals, so as to extract qualified plastic particles through multiple grinding and screening.

[0008] A material discharge assembly is installed at the bottom of the homogenizing cylinder. The unextracted portion of the plastic particles after passing through the rolling homogenizing assembly enters the material discharge assembly and is collected to avoid the accumulation of plastic particles inside the homogenizing cylinder.

[0009] The operator puts the plastic particles to be homogenized into the feeding mechanism, and the plastic particles enter the interior of the homogenizing cylinder along the feeding mechanism, and enter the rolling homogenizing component from the homogenizing cylinder. The rolling homogenizing component rotates under the driving action of the driving component. When the rolling homogenizing component rotates, the plastic particles are driven to rotate, and while driving the plastic particles to rotate, the plastic particles are driven to move in the interior of the rolling homogenizing component along the direction from the feeding mechanism to the lower feeding component, thereby driving the plastic particles to pass through the rolling homogenizing component. When passing through the rolling homogenizing component, the plastic particles pass through the grinding section and the separation section of the rolling homogenizing component. The grinding section and the separation section are arranged at intervals, so that the plastic particles enter the interior of the separation section for sorting after being polished by the grinding section, and the plastic particles that meet the particle size requirements after being polished by the grinding section are separated, so as to prevent all the plastic particles from completely passing through the grinding section, so that the particles that meet the particle size requirements in the plastic particles are excessively worn after passing through the grinding section, so that the plastic particles still have uneven particle size after homogenization, thereby helping to improve the homogenization effect when homogenizing the plastic particles;

[0010] After the plastic particles have completely passed through the rolling homogenizing component, if there are still some particles that do not meet the particle size requirements, the plastic particles are discharged through the discharge component, and the discharged plastic particles can be re-put into the rolling homogenizing component for homogenization treatment, which is beneficial to avoid the plastic particles that do not meet the particle size requirements from accumulating at the tail end of the rolling homogenizing component, causing the accumulation of plastic particles and affecting the subsequent homogenization treatment of the plastic particles, thereby helping to improve the homogenization effect of the plastic particles.

[0011] Preferably, the blanking assembly comprises:

[0012] A discharge port is provided through the bottom of the homogenizing cylinder;

[0013] A second box body is fixed to the bottom of the homogenizing cylinder and is connected to the discharge port;

[0014] A plurality of partition screens are fixed inside the second box, and the mesh numbers of the partition screens gradually increase from top to bottom;

[0015] A layered collection frame is fixed on the side wall of the second box body, and each layer of the layered collection frame is connected to the space above each of the partition screens to collect plastic particles of different sizes;

[0016] A plurality of flip plates are arranged corresponding to the separation screens and are rotatably mounted at the entrances of each layer of the layered collection frame;

[0017] A driving motor is provided corresponding to the flip plate and is installed on the side wall of the layered collection frame. The driving motor drives the flip plate to rotate through an output shaft;

[0018] After the plastic particles completely pass through the rolling homogenizing component, they fall from the discharge port, so that the plastic particles fall into the second box body, and the plastic particles pass through a plurality of partition screens in the second box body in turn, and the mesh numbers of the plurality of partition screens increase from top to bottom, so that after the plastic particles pass through the partition screens, the larger plastic particles remain on the upper partition screen, and the smaller plastic particles remain on the lower partition screen, thereby realizing multi-layer screening of the plastic particles, which is conducive to the classification and collection of the plastic particles that do not meet the requirements after the first homogenization treatment, so as to facilitate the re-introduction of the collected plastic particles into different sections inside the rolling homogenizing component according to the different particle sizes;

[0019] The grinding effect of the grinding section inside the rolling homogenization component gradually weakens along the moving path of the plastic particles, thereby helping to avoid excessive wear of the polished plastic particles due to over-grinding;

[0020] The collected plastic particles are put into different sections inside the rolling homogenization component, which is conducive to selecting the appropriate grinding section for processing according to the particle size of the plastic particles, thereby helping to avoid the collected plastic particles from being over-grinded during the secondary grinding process;

[0021] The flip plate can block the plastic particles on the partition screen, which helps to prevent the plastic particles from falling into the stratified collection frame and being collected when being sorted on the partition screen. When the amount of plastic particles on the partition screen reaches a certain amount, the flip plate is driven by a driving motor to rotate, thereby connecting the partition screen and the stratified collection frame by rotating the flip plate, so that the plastic particles enter the stratified collection frame for collection, which is beneficial to the secondary homogenization of the plastic particles.

[0022] Preferably, the rolling homogenization assembly comprises:

[0023] A rotating cylinder, rotatably mounted inside the homogenizing cylinder;

[0024] A spiral blade is fixed inside the rotating cylinder;

[0025] A plurality of separation chambers are provided and fixed in a linear array inside the rotating cylinder to separate the spiral blades into sequentially spaced grinding chambers and screening chambers, all of the grinding chambers together constitute a grinding section, and all of the screening chambers together constitute a separation section, the inner wall of the grinding chamber is provided as a friction plate, and the part of the rotating cylinder side wall corresponding to the screening chamber is provided as a screen;

[0026] When the plastic particles enter the interior of the rotating cylinder, the rotation of the rotating cylinder drives the plastic particles and the spiral blades to rotate. Under the guidance of the spiral blades, the plastic particles pass through the side wall of the rotating cylinder in a spiral manner as they rotate. The separation chamber divides the interior of the spiral blade into a plurality of sequentially spaced grinding chambers and screening chambers, so that the plastic particles pass through the grinding chamber and the screening chamber, the grinding chamber, and the screening chamber in turn for circulation. When the plastic particles pass through the grinding chamber, as the plastic particles roll, the friction plate plastic particles inside the grinding chamber produce friction, thereby causing the wear of the plastic particles to reduce the particle size of the plastic particles. When the plastic particles pass through the screening chamber, the plastic particles with qualified particle size are discharged through the screen, thereby screening and sorting the plastic particles with qualified particle size, so that the plastic particles with qualified particle size are sorted and collected, while the plastic particles with unqualified particle size continue to enter the next grinding chamber for homogenization treatment, which is beneficial to the segmented homogenization treatment of the plastic particles and to avoid the situation where the plastic particles with qualified particle size are excessively worn, thereby affecting the homogenization effect of the plastic particles.

[0027] Preferably, the separation section comprises:

[0028] A first box body is fixed to the bottom of the homogenizing cylinder;

[0029] A feed opening is provided at the bottom of the homogenizing cylinder, and the feed opening communicates with the interior of the homogenizing cylinder and the first box body;

[0030] The plastic collection frame and the powder collection frame are both slidably plugged into the interior of the first box body, the powder collection frame is located below the plastic collection frame, the bottom of the plastic collection frame is a screen, and the powder collection frame is connected to the blanking component to collect the powder inside the blanking component;

[0031] During the homogenization process of plastic particles, the plastic particles are worn by impact and friction, and the wear of the plastic particles will produce powder. As the homogenization of the plastic particles proceeds, the powder gradually increases. In the grinding section located in the front, the plastic particles need to be severely worn, and the presence of a large amount of powder will interfere with the grinding of the plastic particles by the grinding section, affecting the homogenization of the plastic particles. At this time, through the setting of the feed port, the powder passes through the screen together with the plastic particles with qualified particle size and enters the interior of the first box through the feed port, and the plastic particles and powder enter the interior of the plastic collection frame together. The bottom of the plastic collection frame is set as a screen, so that the plastic particles remain in the plastic collection frame, and the powder generated by grinding passes through the plastic collection frame and enters the interior of the powder collection frame to be collected, which is conducive to collecting the plastic particles with qualified particle size after homogenization, and filtering and collecting the powder generated during the grinding process, which is conducive to avoiding the accumulation of powder in the rolling homogenization component to interfere with the homogenization of the plastic particles.

[0032] Preferably, the separation section further comprises:

[0033] A third box body is fixed to the top of the homogenizing cylinder through a mounting frame;

[0034] An air pump is fixed to the top of the mounting frame, the air pump has an exhaust end and an intake end, the exhaust end and the intake end are both connected to the third box, the exhaust end is fixedly connected to a first branch pipe, the intake end is fixedly connected to a second branch pipe, and valves are fixed to the exhaust end, the intake end, the first branch pipe, and the end of the second branch pipe;

[0035] A connecting pipe, fixedly connected between the third box and the powder collecting frame;

[0036] A first one-way flap is installed at one end of the connecting pipe facing the third box body, so that powder enters the third box body from the connecting pipe in one direction;

[0037] A powder inlet is opened through the top of the homogenizing cylinder to communicate with the third box;

[0038] An opening is formed through the side wall of the rotating cylinder to communicate with the powder inlet during the rotation process;

[0039] A second one-way flap is installed inside the third box body so that the powder enters the homogenizing cylinder from the third box body in one direction;

[0040] The powder generated during the homogenization process is collected inside the powder collection frame. After the air pump is started, the air inlet end and the first branch are opened, and the exhaust end and the second branch are closed by adjusting the valve, so that the air pump generates negative pressure inside the connecting pipe. Under the action of the negative pressure, the powder inside the powder collection frame passes through the first one-way valve along the connecting pipe and enters the third box. Subsequently, the air inlet end and the first branch are closed, and the exhaust end and the second branch are opened by adjusting the valve, so that the air pump increases the pressure inside the third box. It should be noted that at this time, the air pump reduces its power to weaken the airflow intensity to prevent the air pressure formed inside the third box from interfering with the normal homogenization process inside the rotating cylinder. When the opening is aligned with the powder inlet, the third box is pressurized. Under the action of pressure, the powder inside the three boxes passes through the opening and the powder inlet into the screening bin connected thereto, and enters the grinding bin and screening bin behind as the rotating drum rotates. At this time, due to the input of powder, it is difficult for the powder inside the screening bin to completely enter the interior of the first box from the discharge port, so that powder remains inside the grinding bin and the screening bin. At this time, the grinding bin and the screening bin are in the latter stage of homogenization treatment, and most of the plastic particles at this time are close to the particle size requirements. At this time, the powder generated by the homogenization treatment wears the surface of the plastic particles, which is beneficial to reduce the degree of wear, thereby helping to avoid excessive wear of the plastic particles, thereby helping to improve the effect of homogenization treatment of the plastic particles.

[0041] In a second aspect, a control method for a defective plastic particle homogenization device is provided, wherein a controller is installed on the outer wall of the homogenization cylinder, and a first pressure sensor is installed on the top of the partition screen. The control method comprises the following steps:

[0042] The controller receives first pressure information generated by the first pressure sensor when under pressure;

[0043] The controller generates driving control information according to the first pressure information, wherein the driving control information is used to control the start-up of the driving motor;

[0044] The controller sends the driving control information to the driving motor to control the driving motor to start driving the output shaft to rotate 90 degrees and reset after pausing for a period of time;

[0045] When the plastic particles accumulated on the separating screen reach a certain weight, the certain weight here is a controllable value, and the staff inputs it according to the needs. The pressure on the first pressure sensor reaches the specified value, and the first pressure sensor generates the first pressure information. The first pressure sensor sends the first pressure information to the controller. After receiving the first pressure information, the controller generates the driving control information according to the first pressure information, and then the controller sends the driving control information to the driving motor. The driving motor starts after receiving the driving control information. After the driving motor starts, it drives the output shaft to rotate ninety degrees and resets after pausing for a period of time.

[0046] Preferably, a second pressure sensor is installed on the outer wall of the rotating cylinder, and the valves inside the exhaust end and the intake end, the first branch pipe, and the second branch pipe are respectively the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve, and further include:

[0047] The controller receives second pressure information generated by the second pressure sensor when under pressure;

[0048] The controller generates first opening control information and second opening control information, first closing control information and second closing control information according to the second pressure information, wherein the first opening control information is used to control the first solenoid valve to open, the second opening control information is used to control the fourth solenoid valve to open, the first closing control information is used to control the third solenoid valve to close, and the second closing control information is used to control the second solenoid valve to close;

[0049] The controller sends the first opening control information to the first solenoid valve to control the first solenoid valve to open, the controller sends the second opening control information to the fourth solenoid valve to control the fourth solenoid valve to open, the controller sends the first closing control information to the third solenoid valve to control the third solenoid valve to close, and the controller sends the second closing control information to the second solenoid valve to control the second solenoid valve to close;

[0050] When the opening and the powder inlet are aligned, the second pressure sensor is pressurized, and the second pressure sensor generates second pressure information after being pressurized. The second pressure sensor sends the second pressure information to the controller. After receiving the second pressure information, the controller generates first opening control information and second opening control information, first closing control information, and second closing control information according to the second pressure information. Then the controller sends the first opening control information to the first solenoid valve to control the opening of the first solenoid valve, the controller sends the second opening control information to the fourth solenoid valve to control the opening of the fourth solenoid valve, the controller sends the first closing control information to the third solenoid valve to control the closing of the third solenoid valve, and the controller sends the second closing control information to the second solenoid valve to control the closing of the second solenoid valve, so that the air intake end and the first branch pipe are closed, and the exhaust end and the second branch pipe are opened, so that the air pump supplies air to the third box body to realize pressurization of the inside of the third box body, so that the powder passes through the second one-way valve into the interior of the rotating cylinder under the action of pressurization.

[0051] Preferably, the last grinding chamber is internally installed with an infrared scanner, and further comprises:

[0052] The controller receives the exceeding standard information generated by the infrared scanner when detecting that the powder content inside the grinding bin exceeds one-half;

[0053] The controller generates pause control information according to the exceeding information, and when the controller generates the pause control information, the controller stops receiving the second pressure information;

[0054] When the powder content in the grinding bin exceeds one half, the infrared scanner generates an excess information and sends the excess information to the controller. After receiving the excess information, the controller no longer receives the second pressure information, so that the controller no longer controls the air inlet and the first branch to close, and the exhaust end and the second branch to open for powder transportation, thereby avoiding the situation where the powder content in the grinding bin is too high and affects the homogenization effect of the plastic particles.

[0055] Compared with the prior art, the present invention has the following beneficial effects:

[0056] 1. The present invention arranges a rolling homogenizing component so that the plastic particles pass through the grinding section and the separation section of the rolling homogenizing component when passing through the rolling homogenizing component. The grinding section and the separation section are arranged at intervals so that the plastic particles enter the interior of the separation section for sorting after being polished by the grinding section, and the plastic particles that meet the particle size requirements after being polished by the grinding section are separated, which helps to avoid that all the plastic particles completely pass through the grinding section, so that the particles that meet the particle size requirements in the plastic particles are excessively worn after passing through the grinding section, resulting in the plastic particles still having uneven particle size after homogenization, which helps to improve the homogenization effect when the plastic particles are homogenized.

[0057] 2. The present invention enables multi-layer screening of plastic particles through the setting of the feeding component, which is conducive to the classification and collection of plastic particles that do not meet the requirements after the first homogenization treatment, and is conducive to re-introducing the collected plastic particles into different sections inside the rolling homogenization component according to their different particle sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a schematic flow chart of the control method of the present invention.

[0059] Figure 2 It is a schematic diagram of the overall structure of the device of the present invention.

[0060] Figure 3 The structure of the device of the present invention is schematically shown after the overall section Figure 1 .

[0061] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0062] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0063] Figure 6 The structure of the device of the present invention is schematically shown after the overall section Figure 2 .

[0064] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0065] Figure 8 It is a schematic structural diagram of the rotating drum of the present invention after sectioning.

[0066] Fig. 9 It is a schematic diagram of the connection structure of the spiral blades of the present invention.

[0067] In the figure: 1, homogenizing cylinder; 101, fixed cover; 102, powder inlet; 2, stirring motor; 3, stirring shaft; 301, turntable; 4, rotating cylinder; 401, opening; 5, spiral blade; 6, partition; 601, inner spiral plate; 602, outer spiral plate; 603, partition; 7, grid plate; 8, blocking roller; 9, first box; 10, plastic collection frame; 1001, feed port; 11, powder collection frame; 12, second box; 13, partition screen; 1 4. Layered collection frame; 15. Flip plate; 16. Connecting pipe; 17. Mounting frame; 18. Third box; 19. Air pump; 1901. Exhaust end; 1902. Inlet end; 1903. First branch pipe; 1904. Second branch pipe; 20. First one-way flap; 21. Second one-way flap; 22. Initial feed hopper; 2201. Initial feed port; 23. Secondary feed hopper; 2301. Secondary feed port; 24. Discharge port; 25. Grinding bin; 26. Screening bin. DETAILED DESCRIPTION

[0068] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0069] like Figures 2 to 9 The device for homogenizing defective plastic particles shown in the figure comprises a homogenizing barrel 1, which is supported and installed by a bracket, and further comprises:

[0070] A feeding mechanism, installed on the top of the homogenizing cylinder 1, for feeding materials into the interior of the homogenizing cylinder 1;

[0071] The rolling homogenizing assembly is installed inside the homogenizing cylinder 1 and driven by the driving assembly installed at the end of the homogenizing cylinder 1. It is used to drive the plastic particles in one direction to roll and grind the plastic particles during the rolling process. The rolling homogenizing assembly includes multiple grinding sections for grinding the plastic particles and multiple separation sections for screening the qualified plastic particles after grinding. The grinding sections and the separation sections are arranged at intervals to extract qualified plastic particles through multiple grinding and screening.

[0072] The material discharge assembly is installed at the bottom of the homogenizing cylinder 1. The unextracted part of the plastic particles after the rolling homogenizing assembly enters the material discharge assembly and is collected to avoid the accumulation of plastic particles inside the homogenizing cylinder 1.

[0073] In the prior art, the plastic particles are inconsistent in size due to the cutting during the extrusion granulation process. Therefore, after the extrusion granulation is completed, the cut plastic particles need to be homogenized. The plastic particles are impacted at multiple angles so that the edges of the plastic particles are worn during the impact process, so that the particle size of the plastic particles is uniform after the impact and wear. However, during the impact process, the plastic particles are excessively worn, so that the particle size of the plastic particles is still uneven after the impact.

[0074] This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: the operator puts the plastic particles to be homogenized into the feeding mechanism, and the plastic particles enter the interior of the homogenizing cylinder 1 along the feeding mechanism, and enter the rolling homogenizing component from the homogenizing cylinder 1. The rolling homogenizing component rotates under the driving action of the driving component. When the rolling homogenizing component rotates, the plastic particles are driven to rotate, and while driving the plastic particles to rotate, the plastic particles are driven to move in the interior of the rolling homogenizing component along the direction from the feeding mechanism to the lower feeding component, thereby driving the plastic particles to pass through the rolling homogenizing component. When passing through the rolling homogenizing component, the plastic particles pass through the grinding section and the separation section of the rolling homogenizing component. The grinding section and the separation section are arranged at intervals, so that the plastic particles enter the interior of the separation section for sorting after being polished by the grinding section, and the plastic particles that meet the particle size requirements after being polished by the grinding section are separated, thereby facilitating to avoid all the plastic particles from completely passing through the grinding section, so that the particles that meet the particle size requirements in the plastic particles are excessively worn after passing through the grinding section, thereby causing the plastic particles to still have uneven particle size after homogenization, thereby facilitating to improve the homogenization effect when the plastic particles are homogenized;

[0075] After the plastic particles have completely passed through the rolling homogenizing component, if there are still some particles that do not meet the particle size requirements, the plastic particles are discharged through the discharge component, and the discharged plastic particles can be re-put into the rolling homogenizing component for homogenization treatment, which is beneficial to avoid the plastic particles that do not meet the particle size requirements from accumulating at the tail end of the rolling homogenizing component, causing the accumulation of plastic particles and affecting the subsequent homogenization treatment of the plastic particles, thereby helping to improve the homogenization effect of the plastic particles.

[0076] As an optional embodiment, the blanking component includes:

[0077] The discharge port 24 is opened through the bottom of the homogenizing cylinder 1;

[0078] The second box 12 is fixed to the bottom of the homogenizing cylinder 1 and is connected to the discharge port 24;

[0079] A plurality of partition screens 13 are fixed inside the second box body 12, and the mesh number of the partition screens 13 increases gradually from top to bottom;

[0080] The layered collection frame 14 is fixed on the side wall of the second box body 12, and each layer of the layered collection frame 14 is connected to the space above each partition screen 13 to collect plastic particles of different sizes;

[0081] A plurality of flip plates 15 are arranged corresponding to the separation screens 13 and are rotatably mounted at the entrances of each layer of the layered collection frame 14;

[0082] The driving motor is arranged corresponding to the flip plate 15 and is installed on the side wall of the layered collection frame 14. The driving motor drives the flip plate 15 to rotate through the output shaft;

[0083] As an optional embodiment, a plurality of secondary feed hoppers 23 are fixed on the top of the homogenizing cylinder 1, the bottom of the secondary feed hopper 23 penetrates the homogenizing cylinder 1, and a plurality of secondary feed ports 2301 are opened on the side wall of the rotating cylinder 4, and the secondary feed ports 2301 are connected to the secondary feed hopper 23 during the rotation process;

[0084] The secondary feed ports 2301 are distributed in a linear array and correspond to the separation sections;

[0085] After the plastic particles completely pass through the rolling homogenizing component, they fall from the discharge port 24, so that the plastic particles fall into the second box body 12, and the plastic particles pass through the plurality of partition screens 13 in turn inside the second box body 12, and the mesh numbers of the plurality of partition screens 13 increase from top to bottom, so that after the plastic particles pass through the partition screens 13, the larger plastic particles remain on the upper partition screen 13, while the smaller plastic particles remain on the lower partition screen 13, thereby realizing multi-layer screening of the plastic particles, which is conducive to the classification and collection of the plastic particles that do not meet the requirements after the first homogenization treatment, so as to facilitate the re-introduction of the collected plastic particles into different sections inside the rolling homogenizing component according to the different particle sizes;

[0086] The grinding effect of the grinding section inside the rolling homogenization component gradually weakens along the moving path of the plastic particles, thereby helping to avoid excessive wear of the polished plastic particles due to over-grinding;

[0087] The collected plastic particles are put into different sections inside the rolling homogenization component, which is conducive to selecting the appropriate grinding section for processing according to the particle size of the plastic particles, thereby helping to avoid the collected plastic particles from being over-grinded during the secondary grinding process;

[0088] The flip plate 15 can block the plastic particles on the separation screen 13, so as to prevent the plastic particles from falling into the layered collection frame 14 and being collected when being sorted on the separation screen 13. When the amount of plastic particles on the separation screen 13 reaches a certain amount, the flip plate 15 is driven by the driving motor to rotate, so that the separation screen 13 and the layered collection frame 14 are connected by rotating the flip plate, so that the plastic particles enter the layered collection frame 14 for collection, which is conducive to the secondary homogenization of the plastic particles.

[0089] The plastic particles that need to be subjected to secondary homogenization treatment are added through different secondary feed hoppers 23. During the rotation of the rotating drum 4, the secondary feed port 2301 is driven to rotate. When the secondary feed port 2301 rotates and aligns with the secondary feed hopper 23, the plastic particles enter the rolling homogenization component through the secondary feed port 2301, thereby helping to avoid the accumulation of plastic particles caused by the one-time addition, thereby causing the homogenization treatment of the plastic particles accumulated in the middle of the plastic particle pile to be disturbed, thereby helping to improve the homogenization treatment efficiency of the plastic particles.

[0090] As an optional embodiment, the rolling homogenization component includes:

[0091] The rotating cylinder 4 is rotatably mounted inside the homogenizing cylinder 1;

[0092] The spiral blade 5 is fixed inside the rotating cylinder 4;

[0093] There are multiple separation chambers 6, which are fixed in a linear array inside the rotating cylinder 4 to separate the spiral blades 5 into sequentially spaced grinding chambers 25 and screening chambers 26. All the grinding chambers 25 together constitute a grinding section, and all the screening chambers 26 together constitute a separation section. The inner wall of the grinding chamber 25 is set as a friction plate, and the part of the side wall of the rotating cylinder 4 corresponding to the screening chamber 26 is set as a screen.

[0094] When the plastic particles enter the interior of the rotating cylinder 4, the rotation of the rotating cylinder 4 drives the plastic particles and the spiral blade 5 to rotate. Under the guidance of the spiral blade 5, the plastic particles pass through the side wall of the rotating cylinder 4 in a spiral manner as they rotate. The partition chamber 6 divides the interior of the spiral blade 5 into a plurality of sequentially spaced grinding chambers 25 and screening chambers 26, so that the plastic particles pass through the grinding chamber 25 and the screening chamber 26, the grinding chamber 25, and the screening chamber 26 in turn, and the plastic particles are circulated. When the plastic particles pass through the grinding chamber 25, as the plastic particles roll, the friction plate plastic particles inside the grinding chamber 25 are generated. Friction causes wear of the plastic particles to reduce the particle size of the plastic particles. When the plastic particles pass through the screening bin 26, the plastic particles with qualified particle size are discharged through the screen, so that the plastic particles with qualified particle size are screened and sorted, so that the plastic particles with qualified particle size are sorted and collected, while the plastic particles with unqualified particle size continue to enter the next grinding bin 25 for homogenization treatment, which is beneficial to the segmented homogenization treatment of the plastic particles and helps to avoid the situation where the plastic particles with qualified particle size are excessively worn, thereby affecting the homogenization effect of the plastic particles.

[0095] As an optional embodiment, the separation section includes:

[0096] The first box body 9 is fixed to the bottom of the homogenizing cylinder 1;

[0097] A feed opening 1001 is provided at the bottom of the homogenizing cylinder 1, and the feed opening 1001 is connected to the interior of the homogenizing cylinder 1 and the first box body 9;

[0098] The plastic collecting frame 10 and the powder collecting frame 11 are both slidably inserted into the interior of the first box body 9. The powder collecting frame 11 is located below the plastic collecting frame 10. The bottom of the plastic collecting frame 10 is a screen. The powder collecting frame 11 is connected to the feeding assembly to collect the powder inside the feeding assembly.

[0099] During the homogenization process of plastic particles, the plastic particles are worn by impact and friction, and the wear of the plastic particles will produce powder. As the homogenization of the plastic particles proceeds, the powder gradually increases. In the grinding section located in the front, the plastic particles need to be severely worn, and the presence of a large amount of powder will interfere with the grinding of the plastic particles by the grinding section, affecting the homogenization of the plastic particles. At this time, through the setting of the discharge port 1001, the powder passes through the screen together with the plastic particles with qualified particle size through the discharge port 1001 and enters the interior of the first box body 9, and the plastic particles and powder enter the interior of the plastic collection frame 10 together. The bottom of the plastic collection frame 10 is set as a screen, so that the plastic particles remain in the plastic collection frame 10, and the powder generated by grinding passes through the plastic collection frame 10 and enters the interior of the powder collection frame 11 to be collected, which is conducive to collecting the plastic particles with qualified particle size after homogenization, and filtering and collecting the powder generated during the grinding process, which is conducive to avoiding the accumulation of powder in the rolling homogenization component to interfere with the homogenization of the plastic particles.

[0100] As an optional embodiment, the separation section further comprises:

[0101] The third box 18 is fixed to the top of the homogenizing cylinder 1 through the mounting frame 17;

[0102] The air pump 19 is fixed to the top of the mounting frame 17. The air pump 19 has an exhaust end 1901 and an air inlet end 1902. The exhaust end 1901 and the air inlet end 1902 are both connected to the third box 18. The exhaust end 1901 is fixedly connected to a first branch pipe 1903, and the air inlet end 1902 is fixedly connected to a second branch pipe 1904. Valves are fixedly provided at the ends of the exhaust end 1901, the air inlet end 1902, the first branch pipe 1903, and the second branch pipe 1904.

[0103] A filter frame is disposed inside the third box 18, so that the airflow enters the air inlet end 1902 after passing through the filter frame;

[0104] The connecting pipe 16 is fixedly connected between the third box 18 and the powder collecting frame 11;

[0105] A first one-way flap 20 is installed at one end of the connecting pipe 16 facing the third box 18, so that the powder enters the third box 18 from the connecting pipe 16 in one direction;

[0106] The powder inlet 102 is opened through the top of the homogenizing cylinder 1 to communicate with the third box 18;

[0107] An opening 401 is formed through the side wall of the rotating cylinder 4 to communicate with the powder inlet 102 during the rotation process;

[0108] The second one-way flap 21 is installed inside the third box 18 so that the powder can enter the homogenizing cylinder 1 from the third box 18 in one direction;

[0109] The powder generated during the homogenization process is collected inside the powder collection frame 11. After the air pump 19 is started, the air inlet end 1902 and the first branch pipe 1903 are opened and the exhaust end 1901 and the second branch pipe 1904 are closed by adjusting the valve, so that the air pump 19 generates a negative pressure inside the connecting pipe 16. Under the action of the negative pressure, the powder inside the powder collection frame 11 passes through the first one-way valve 20 along the connecting pipe 16 and enters the third box body 18. Subsequently, the air inlet end 1902 and the first branch pipe 1903 are closed and the exhaust end 1901 and the second branch pipe 1904 are opened, so that the air pump 19 increases the pressure inside the third box body 18. It should be noted that at this time, the air pump 19 reduces its power to weaken the airflow intensity to prevent the air pressure formed inside the third box body 18 from interfering with the normal homogenization process inside the rotating cylinder 4. When 401 and the powder inlet 102 are aligned, the powder inside the third box body 18 passes through the opening 401 and the powder inlet 102 under pressure and enters the screening bin 26 connected thereto, and enters the grinding bin 25 and the screening bin 26 behind as the rotating cylinder 4 rotates. At this time, due to the input of powder, it is difficult for the powder inside the screening bin 26 to completely enter the interior of the first box body 9 from the discharge port 1001, so that powder remains inside the grinding bin 25 and the screening bin 26. At this time, the grinding bin 25 and the screening bin 26 are in the latter stage of the homogenization treatment. At this time, most of the plastic particles are close to the particle size requirements. At this time, the powder generated by the homogenization treatment wears the surface of the plastic particles, which is beneficial to reduce the degree of wear, thereby helping to avoid excessive wear of the plastic particles, thereby helping to improve the effect of the homogenization treatment of the plastic particles.

[0110] As an optional embodiment, the feeding mechanism includes:

[0111] The initial feed hopper 22 is fixed to the top of the homogenizing cylinder 1, and the bottom of the initial feed hopper 22 passes through the homogenizing cylinder 1;

[0112] The initial feed port 2201 is formed through the side wall of the rotating cylinder 4 to connect with the initial feed hopper 22 when the rotating cylinder 4 rotates to a certain angle;

[0113] After the plastic particles are placed inside the initial feed hopper 22, the driving assembly continuously drives the rotating drum 4 to rotate, and the rotating drum 4 drives the initial feed port 2201 to rotate. When the initial feed port 2201 rotates and is aligned with the initial feed hopper 22, the plastic particles enter the rotating drum 4 from the inside of the initial feed hopper 22 through the initial feed port 2201, thereby allowing the plastic particles to enter the inside of the rolling homogenization assembly for homogenization treatment.

[0114] As an optional embodiment, the driving component includes:

[0115] Two fixed covers 101 are symmetrically fixed at two ends of the homogenizing cylinder 1;

[0116] The stirring motor 2 is fixed on the side wall of the fixed cover 101;

[0117] Two turntables 301 are rotatably mounted inside the homogenizing cylinder 1. A stirring shaft 3 is fixedly connected between the two turntables 301. The stirring shaft 3 is fixedly connected to the spiral blade 5. The stirring motor 2 drives the stirring shaft 3 to rotate through the output shaft.

[0118] After the stirring motor 2 is started, the stirring shaft 3 is driven to rotate through the output shaft. After the stirring shaft 3 rotates, the turntable 301 and the spiral blade 5 are driven to rotate, thereby driving the rolling homogenizing component to rotate, so that the plastic particles are homogenized by the rotation of the rolling homogenizing component.

[0119] As an optional embodiment, the partition compartment 6 includes:

[0120] The inner spiral plate 601 is fixed on the side wall of the spiral blade 5, and one inner spiral plate 601 is equal to one pitch length of the spiral blade 5;

[0121] The outer spiral plate 602 is arranged corresponding to the inner spiral plate 601 and fixed on the side wall of the spiral blade 5, and the friction plate is arranged on the side wall of the outer spiral plate 602 and the inner spiral plate 601 on the opposite side;

[0122] Two partitions 603 are provided corresponding to the inner spiral plate 601 and fixed at both ends of the inner spiral plate 601;

[0123] The inner spiral plate 601 and the outer spiral plate 602 can form a flat spiral chamber on the spiral blade 5, thereby forming a grinding chamber 25, so that when a large number of plastic particles need to enter the interior of the grinding chamber 25 at the same time, the flat setting of the grinding chamber 25 prevents a large number of plastic particles from entering at the same time, and the flat setting of the grinding chamber 25 makes it possible for the plastic particles to contact and collide with both the inner spiral plate 601 and the outer spiral plate 602 during the rolling process, which is conducive to avoiding the situation where the plastic particles are accumulated and it is difficult to produce the collision friction effect, thereby helping to improve the homogenization treatment effect of the plastic particles;

[0124] The provision of the partition 603 is helpful in preventing the plastic particles from entering the space between the inner spiral plate 601 and the stirring shaft 3, thereby facilitating the plastic particles to completely enter the grinding chamber 25 for homogenization treatment.

[0125] As an optional embodiment, the partition compartment 6 further includes:

[0126] A plurality of mesh plates 7, two mesh plates 7 correspond to one grinding chamber 25, and the mesh plates 7 are fixed at both ends of the corresponding grinding chamber 25;

[0127] A plurality of blocking rollers 8, the blocking rollers 8 are divided into a plurality of groups corresponding to the grinding chambers 25, and the blocking rollers 8 are fixed inside the corresponding grinding chambers 25;

[0128] When the plastic particles enter the grinding chamber 25, the blocking roller 8 can hinder the rolling of the plastic particles, thereby facilitating the impact effect of the plastic particles and improving the homogenization effect of the plastic particles.

[0129] By setting the grid plate 7, the grinding chamber 25 can be divided into a separate chamber. At this time, a grinding stone is placed inside the grinding chamber 25. The grinding stone will not move out of the grinding chamber 25 due to the obstruction of the grinding chamber 25, while the plastic particles can pass through normally. Therefore, the impact effect on the plastic particles is enhanced by placing the grinding stone, which is beneficial to improve the effect of homogenizing the plastic particles.

[0130] like Figure 1 A control method for a defective plastic particle homogenization device is shown, wherein a controller is installed on the outer wall of the homogenization cylinder 1, and a first pressure sensor is installed on the top of the partition screen 13. The control method comprises the following steps:

[0131] The controller receives first pressure information generated by the first pressure sensor when under pressure;

[0132] The controller generates drive control information according to the first pressure information, and the drive control information is used to control the start of the drive motor;

[0133] The controller sends the driving control information to the driving motor to control the driving motor to start driving the output shaft to rotate 90 degrees and reset after pausing for a period of time;

[0134] When the plastic particles accumulated on the partition screen 13 reach a certain weight, the certain weight here is a controllable value, and the staff inputs it according to the needs. The pressure on the first pressure sensor reaches the specified value, and the first pressure sensor generates the first pressure information. The first pressure sensor sends the first pressure information to the controller. After receiving the first pressure information, the controller generates the drive control information according to the first pressure information, and then the controller sends the drive control information to the drive motor. The drive motor starts after receiving the drive control information. After the drive motor starts, it drives the output shaft to rotate ninety degrees and resets after pausing for a period of time.

[0135] As an optional embodiment, a second pressure sensor is installed on the outer wall of the rotating cylinder 4, and the valves inside the exhaust end 1901 and the intake end 1902, the first branch pipe 1903, and the second branch pipe 1904 are respectively the first solenoid valve and the second solenoid valve, the third solenoid valve, and the fourth solenoid valve, and further include:

[0136] The controller receives second pressure information generated by the second pressure sensor when under pressure;

[0137] The controller generates first opening control information and second opening control information, first closing control information and second closing control information according to the second pressure information, wherein the first opening control information is used to control the first solenoid valve to open, the second opening control information is used to control the fourth solenoid valve to open, the first closing control information is used to control the third solenoid valve to close, and the second closing control information is used to control the second solenoid valve to close;

[0138] The controller sends the first opening control information to the first solenoid valve to control the first solenoid valve to open, the controller sends the second opening control information to the fourth solenoid valve to control the fourth solenoid valve to open, the controller sends the first closing control information to the third solenoid valve to control the third solenoid valve to close, and the controller sends the second closing control information to the second solenoid valve to control the second solenoid valve to close;

[0139] When the opening 401 and the powder inlet 102 are aligned, the second pressure sensor is pressurized, and the second pressure sensor generates second pressure information after being pressurized. The second pressure sensor sends the second pressure information to the controller. After receiving the second pressure information, the controller generates first opening control information and second opening control information, first closing control information, and second closing control information according to the second pressure information. Then the controller sends the first opening control information to the first solenoid valve to control the opening of the first solenoid valve, sends the second opening control information to the fourth solenoid valve to control the opening of the fourth solenoid valve, sends the first closing control information to the third solenoid valve to control the closing of the third solenoid valve, and sends the second closing control information to the second solenoid valve to control the closing of the second solenoid valve, so that the air intake end 1902 and the first branch pipe 1903 are closed, and the exhaust end 1901 and the second branch pipe 1904 are opened, so that the air pump 19 supplies air to the third box body 18 to increase the pressure inside the third box body 18, so that the powder passes through the second one-way flap 21 under the action of the increase in pressure and enters the interior of the rotating cylinder 4.

[0140] As an optional embodiment, an infrared scanner is installed inside the last grinding chamber 25, and further includes:

[0141] The controller receives the over-limit information generated by the infrared scanner when it detects that the powder content inside the grinding chamber 25 exceeds one-half;

[0142] The controller generates pause control information according to the exceeding information. When the controller generates the pause control information, the controller stops receiving the second pressure information.

[0143] When the powder content in the grinding bin 25 exceeds one half, the infrared scanner generates excess information and sends the excess information to the controller. After receiving the excess information, the controller no longer receives the second pressure information, so that the controller no longer controls the air inlet end 1902 and the first branch pipe 1903 to be closed, and the exhaust end 1901 and the second branch pipe 1904 are opened to transport the powder, thereby avoiding the situation where the powder content in the grinding bin 25 is too high and affects the homogenization effect of the plastic particles.

[0144] The working principle of the present invention is as follows: an operator puts plastic particles to be homogenized into a feeding mechanism, and the plastic particles enter the interior of a homogenizing cylinder 1 along the feeding mechanism, and enter a rolling homogenizing component from the homogenizing cylinder 1. The rolling homogenizing component rotates under the driving action of a driving component, and the rolling homogenizing component drives the plastic particles to rotate when the rolling homogenizing component rotates, and while driving the plastic particles to rotate, the plastic particles are driven to move in the interior of the rolling homogenizing component along the direction from the feeding mechanism to the lower feeding component, thereby driving the plastic particles to pass through the rolling homogenizing component, and the plastic particles pass through a grinding section and a separation section of the rolling homogenizing component when passing through the rolling homogenizing component, and the grinding section and the separation section are arranged at intervals, so that the plastic particles enter the interior of the separation section for sorting after being polished by the grinding section, and the plastic particles that meet the particle size requirements after being polished by the grinding section are separated, thereby facilitating avoiding that all the plastic particles completely pass through the grinding section, so that the particles that meet the particle size requirements in the plastic particles are excessively worn after passing through the grinding section, thereby causing the plastic particles to still have uneven particle sizes after homogenization, thereby facilitating improving the homogenization effect when the plastic particles are homogenized;

[0145] After the plastic particles have completely passed through the rolling homogenizing component, if there are still some particles that do not meet the particle size requirements, the plastic particles are discharged through the discharge component, and the discharged plastic particles can be re-put into the rolling homogenizing component for homogenization treatment, which is beneficial to avoid the plastic particles that do not meet the particle size requirements from accumulating at the tail end of the rolling homogenizing component, causing the accumulation of plastic particles and affecting the subsequent homogenization treatment of the plastic particles, thereby helping to improve the homogenization effect of the plastic particles.

[0146] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A device for homogenizing defective plastic particles, comprising a homogenizing cylinder (1), wherein the homogenizing cylinder (1) is supported and installed by a bracket, and is characterized in that: Also includes: A feeding mechanism, installed on the top of the homogenizing cylinder (1), and used for feeding materials into the interior of the homogenizing cylinder (1); A rolling homogenizing assembly is installed inside the homogenizing cylinder (1) and is driven by a driving assembly installed at the end of the homogenizing cylinder (1) to drive the plastic particles in one direction to roll and grind the plastic particles during the rolling process. The rolling homogenizing assembly comprises a plurality of grinding sections for grinding the plastic particles and a plurality of separation sections for screening the polished qualified plastic particles. The grinding sections and the separation sections are arranged at intervals so as to extract qualified plastic particles through multiple grinding and screening. A material discharge assembly is installed at the bottom of the homogenizing cylinder (1), and the unextracted portion of the plastic particles after passing through the rolling homogenizing assembly enters the material discharge assembly and is collected, so as to avoid the accumulation of plastic particles inside the homogenizing cylinder (1); The rolling homogenization component comprises: A rotating cylinder (4) rotatably mounted inside the homogenizing cylinder (1); A spiral blade (5) is fixed inside the rotating cylinder (4); A plurality of separation chambers (6) are provided and fixed in a linear array inside the rotating cylinder (4) to separate the spiral blades (5) into grinding chambers (25) and screening chambers (26) spaced apart in sequence, all of the grinding chambers (25) together constitute a grinding section, and all of the screening chambers (26) together constitute a separation section, the inner wall of the grinding chamber (25) is provided as a friction plate, and the portion of the side wall of the rotating cylinder (4) corresponding to the screening chamber (26) is provided as a screen; The separation section also includes: A third box (18) is fixed to the top of the homogenizing cylinder (1) via a mounting frame (17); an air pump (19) fixed to the top of the mounting frame (17), the air pump (19) comprising an exhaust end (1901) and an intake end (1902), the exhaust end (1901) and the intake end (1902) both being connected to the third housing (18), the exhaust end (1901) being fixedly connected to a first branch pipe (1903), the intake end (1902) being fixedly connected to a second branch pipe (1904), and valves being fixedly provided at the ends of the exhaust end (1901), the intake end (1902), the first branch pipe (1903), and the second branch pipe (1904); A connecting pipe (16) fixedly connected between the third box (18) and the powder collecting frame (11); A first one-way flap (20) is installed at one end of the connecting tube (16) facing the third box (18) so that powder can enter the third box (18) from the connecting tube (16) in a one-way manner; A powder inlet (102) is opened through the top of the homogenizing cylinder (1) to communicate with the third box (18); An opening (401) is formed through the side wall of the rotating cylinder (4) so ​​as to be connected to the powder inlet (102) during the rotation process; A second one-way flap (21) is installed inside the third box (18) to allow powder to enter the homogenizing cylinder (1) from the third box (18) in a one-way manner; A controller is installed on the outer wall of the homogenizing cylinder (1), and a first pressure sensor is installed on the top of the partition screen (13); A second pressure sensor is installed on the outer wall of the rotating cylinder (4); the valves inside the exhaust end (1901), the intake end (1902), the first branch pipe (1903), and the second branch pipe (1904) are respectively a first solenoid valve, a second solenoid valve, a third solenoid valve, and a fourth solenoid valve; The controller is used to receive first pressure information generated by the first pressure sensor when it is under pressure; The controller is used to generate driving control information according to the first pressure information, and the driving control information is used to control the start of the driving motor; The controller is used to send the driving control information to the driving motor to control the driving motor to start driving the output shaft to rotate 90 degrees and reset after pausing for a period of time; The controller is further configured to receive second pressure information generated by the second pressure sensor when under pressure; The controller is further used to generate first opening control information and second opening control information, first closing control information and second closing control information according to the second pressure information, wherein the first opening control information is used to control the first solenoid valve to open, the second opening control information is used to control the fourth solenoid valve to open, the first closing control information is used to control the third solenoid valve to close, and the second closing control information is used to control the second solenoid valve to close; The controller is also used to send the first opening control information to the first solenoid valve to control the opening of the first solenoid valve, the controller sends the second opening control information to the fourth solenoid valve to control the opening of the fourth solenoid valve, the controller sends the first closing control information to the third solenoid valve to control the closing of the third solenoid valve, and the controller sends the second closing control information to the second solenoid valve to control the closing of the second solenoid valve.

2. The defective plastic particle homogenization device according to claim 1, characterized in that: The blanking assembly comprises: A discharge port (24) is provided through the bottom of the homogenizing cylinder (1); A second box (12) is fixed to the bottom of the homogenizing cylinder (1) and is connected to the discharge port (24); A plurality of partition screens (13) are fixed inside the second box (12), and the mesh size of the partition screens (13) gradually increases from top to bottom; A layered collection frame (14) is fixed on the side wall of the second box body (12), and each layer of the layered collection frame (14) is respectively connected to the space above each of the separation screens (13) to collect plastic particles of different sizes; A plurality of flip plates (15) are arranged corresponding to the separation screen (13) and are rotatably mounted at the entrances of each layer of the layered collection frame (14); A driving motor is provided corresponding to the flip plate (15), and both are mounted on the side wall of the layered collection frame (14); the driving motor drives the flip plate (15) to rotate via an output shaft.

3. A defective plastic particle homogenization device according to claim 2, characterized in that: The separation section comprises: A first box body (9) is fixed to the bottom of the homogenizing cylinder (1); A feed opening (1001) is provided at the bottom of the homogenizing cylinder (1), wherein the feed opening (1001) is connected to the interior of the homogenizing cylinder (1) and the first box (9); The plastic collection frame (10) and the powder collection frame (11) are both slidably plugged into the interior of the first box body (9); the powder collection frame (11) is located below the plastic collection frame (10); the bottom of the plastic collection frame (10) is a screen; and the powder collection frame (11) is connected to the feed assembly to collect powder inside the feed assembly.

4. A defective plastic particle homogenization device according to claim 3, characterized in that: The partition compartment (6) comprises: An inner spiral plate (601) is fixed on the side wall of the spiral blade (5), wherein one inner spiral plate (601) is equal to one pitch length of the spiral blade (5); An outer spiral plate (602) is arranged corresponding to the inner spiral plate (601) and is fixed on a side wall of the spiral blade (5); the friction plate is arranged on a side wall of an opposite side of the outer spiral plate (602) and the inner spiral plate (601); Two partition plates (603) are arranged corresponding to the inner spiral plate (601) and are fixed at two ends of the inner spiral plate (601).

5. The defective plastic particle homogenization device according to claim 4, characterized in that: The partition compartment (6) further comprises: A plurality of grid plates (7), two of the grid plates (7) corresponding to one grinding chamber (25), the grid plates (7) being fixed at two ends of the corresponding grinding chamber (25); A plurality of obstruction rollers (8), wherein the obstruction rollers (8) are divided into a plurality of groups corresponding to the grinding chambers (25), and the obstruction rollers (8) are fixed inside the corresponding grinding chambers (25).

6. A control method for a defective plastic particle homogenization device, applicable to a defective plastic particle homogenization device as claimed in any one of claims 4 to 5, characterized in that: The last grinding chamber (25) is internally installed with an infrared scanner, and further comprises: The controller receives the over-limit information generated by the infrared scanner when detecting that the powder content inside the grinding chamber (25) exceeds one-half; The controller generates pause control information according to the exceeding information. When the controller generates the pause control information, the controller stops receiving the second pressure information.

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