Design material treatment device based on waste product remanufacturing

Abstract

The invention relates to the technical field of waste resource recycling, in particular to a design material treatment device based on waste product remanufacturing, which comprises a support frame and an outer cylinder arranged on the support frame, the cross section of the outer cylinder is trapezoidal, and the outer cylinder is used for optimizing internal fluid dynamics and guiding water flow to form directional circulating eddy current from top to bottom; the cleaning effect is enhanced and dead zones are eliminated; the roller screen drum is eccentrically arranged in the outer drum, the axis of the roller screen drum is parallel to but not overlapped with the axis of the outer drum, and the roller screen drum is used for generating periodic up-down and radial changes in the internal space relative to the functional plate during rotation, providing a dynamic friction cleaning environment for materials and realizing solid-liquid separation; according to the device, cleaning, sorting and dewatering of materials are efficiently completed in one machine through the compound motion of rotation of the roller screen drum and revolution of the functional plate in combination with the reciprocating scrubbing effect generated by the eccentric structure; and meanwhile, self-cleaning in the operation process is achieved through the flexible scraping plate and the washing clamping plate.

Description

Technical Field

[0001] This invention relates to the field of waste resource recycling technology, specifically to a design material processing device based on the remanufacturing of waste products. Background Technology

[0002] With the deepening of the concept of sustainable development, the recycling and remanufacturing of plastics has become a key link in resource recycling. In this process, efficient and thorough cleaning and pretreatment of recycled plastics are core steps to ensure the quality of recycled materials. Currently, most common plastic recycling equipment on the market adopts a split design, meaning that cleaning, sorting, and dehydration processes must be completed sequentially by multiple independent machines. While this approach can achieve basic functions, it has inherent drawbacks such as large equipment footprint, high energy consumption during material handling, and poor process flow coordination, resulting in low overall processing efficiency and high operating costs.

[0003] More importantly, the existing cleaning equipment has a relatively simple technical principle, relying mainly on simple rotation and tumbling or high-pressure water jet impact. It is difficult to adapt to the different shapes and levels of contamination of plastic products (such as bottles, films, and rigid shells). In practical applications, there are a series of technical bottlenecks, such as the inability to adjust the cleaning intensity, poor removal effect on stubborn stains and labels, the easy formation of cleaning dead zones inside the equipment, and flexible materials entangled in the core components.

[0004] In addition, during continuous operation, contaminants easily adhere to the internal components of the equipment (such as stirring blades and inner walls), which not only causes secondary pollution but also requires frequent shutdowns for cleaning, severely restricting the continuity and automation level of production.

[0005] Therefore, there is an urgent need in this field for an integrated, intelligent plastic pretreatment device that can handle complex working conditions, and can efficiently and continuously complete multiple processes such as cleaning, sorting and even dehydration in a single device, thereby significantly improving the cleanliness and economic value of recycled plastics. Summary of the Invention

[0006] The purpose of this invention is to provide a material processing device for the remanufacturing of waste products that integrates cleaning, sorting and dehydration functions, achieves efficient and gentle cleaning through compound motion, has adaptive adjustment and online self-cleaning capabilities, and can optimize the internal flow field to enhance the cleaning effect and preliminary sorting, so as to solve the shortcomings mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A design material processing device based on the remanufacturing of waste products, comprising: a support frame and an outer cylinder disposed on the support frame, wherein the cross-section of the outer cylinder is trapezoidal to optimize internal fluid dynamics, guide water flow to form a top-down directional circulating vortex, enhance the cleaning effect and eliminate dead zones;

[0008] A rotary screen cylinder is eccentrically positioned inside the outer cylinder, with its axis parallel to but not coinciding with the axis of the outer cylinder. During rotation, its internal space undergoes periodic vertical and radial changes relative to the functional plate, providing a dynamic friction cleaning environment for the material and achieving solid-liquid separation.

[0009] A drive mechanism is located at one end of the outer cylinder to drive the rotary screen cylinder to rotate around its own axis, thereby providing power for the entire cleaning process and ensuring the stable operation of the rotary screen cylinder and its internal mechanisms.

[0010] One rotating shaft is coaxially arranged with the outer cylinder and located at the other end of the outer cylinder that is inclined downwards. It serves as the mounting base and rotation center for the functional plate and adjustment mechanism.

[0011] Several functional plates are evenly distributed around the circumference of the rotating shaft. One end of each functional plate passes through a sliding groove on the wall of the rotary screen cylinder and extends into the inner cavity of the outer cylinder. Washing and scrubbing plates are provided on both sides of the functional plate facing the material. These plates are used to agitate the water flow and impact, rub, and scrub the plastic bottles inside the rotary screen cylinder during radial extension and rotation. They are the core components for performing the cleaning function.

[0012] An adjustment mechanism is provided inside the rotary screen cylinder to synchronously drive all the functional plates to extend and retract radially, thereby dynamically adjusting the extension length of the functional plates, thereby changing the cleaning intensity and the size of the stirring cavity, and controlling the contact state between the flexible scraper and the inner wall of the outer cylinder, so as to realize the start and stop of the adaptive cleaning and self-cleaning functions.

[0013] The device includes a self-cleaning mechanism, comprising a washing clamp fixedly mounted on the side wall of the rotary screen cylinder and a flexible scraper mounted on the top of the functional plate. The washing clamp contacts the surfaces of the functional plate and the washing scraper extending out of the rotary screen cylinder, and the flexible scraper contacts the inner wall of the outer cylinder when the functional plate extends out. This mechanism is used to automatically clean the dirt attached to the surface of the functional plate and the inner wall of the outer cylinder during equipment operation, preventing secondary pollution and maintaining continuous and efficient operation of the equipment.

[0014] Preferably, the adjustment mechanism includes:

[0015] A set of rods is rotatably sleeved on the outside of one end of the rotating shaft, and the other end of the rotating shaft is fixedly connected to the support frame.

[0016] A sleeve is slidably fitted onto the outside of the sleeve rod;

[0017] A threaded rod, one end of which is threadedly connected to the sleeve rod, and the other end of which is connected to the output shaft of a drive motor located at the end of the sleeve;

[0018] Several adjusting blocks are rotatably connected to the outside of the rotating shaft, and each adjusting block has a radial sliding groove.

[0019] Several sliding blocks are fixedly connected to the inner end of the functional board and slidably disposed in the slide groove;

[0020] Several adjusting rings are fixedly sleeved on the outside of the sleeve;

[0021] And several connecting rods, one end of each connecting rod is circumferentially slidably connected to the adjusting ring via a connecting block, and the other end is hinged to the side wall of the corresponding functional plate;

[0022] The adjustment mechanism is used to convert the rotational motion of the drive motor into the linear motion of the sleeve, and then push the functional plate through the connecting rod to achieve synchronous radial extension and retraction.

[0023] Preferably, the drive mechanism includes:

[0024] One rotating shaft has one end that passes through the outer cylinder and is fixedly connected to the axis of the rotary screen cylinder;

[0025] One drive motor is fixedly installed at the bottom end of the support frame;

[0026] And a belt drive assembly, which connects the output shaft of the second drive motor to the second rotating shaft, for transmitting power.

[0027] Preferably, the belt drive assembly includes a drive pulley, which is fixedly mounted on the output shaft of the second drive motor;

[0028] The driven pulley is fixedly installed on the second rotating shaft;

[0029] And a transmission belt, which is fitted onto the driving pulley and the driven pulley.

[0030] Preferably, the outer cylinder has a water inlet at the top and a water outlet at the bottom for injecting and discharging cleaning water, enabling continuous or batch cleaning operations, and allowing the device to be switched to spin-drying mode after drainage.

[0031] Preferably, the outer cylinder and the rotary screen cylinder are respectively provided with inlet one and inlet two, outlet one and outlet two, to realize continuous feeding and discharging of materials, and in conjunction with the inclined setting of the cylinder, to form a complete automated material flow path.

[0032] Preferably, the outer cylinder is inclined, with its feed end higher than its discharge end.

[0033] Preferably, the radial cross-sectional shape of the functional plate is streamlined or airfoil-shaped, and its top shape is adapted to the trapezoidal inner wall contour of the outer cylinder, so as to ensure that the flexible scraper can maintain full contact with the inner wall of the outer cylinder when the functional plate is extended.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] 1. This invention innovatively combines a trapezoidal cross-section outer cylinder, an eccentrically positioned rotary screen cylinder, and a radially adjustable functional plate. Within a single device, it sequentially or simultaneously completes powerful cleaning, preliminary sorting, and final dewatering of materials. Materials enter through the feed inlet, undergo cleaning in the outer cylinder filled with cleaning fluid, and can then be directly drained and centrifuged for dewatering. The process is compact, significantly reducing equipment footprint and material handling costs. The core of this device lies in creating a complex composite motion: the rotary screen cylinder's rotation around its own axis and the functional plate's revolution relative to the rotary screen cylinder and its up-and-down rubbing motion due to the eccentric structure. This motion causes materials such as plastic bottles to not only tumble within the rotary screen cylinder but also undergo continuous, bidirectional friction and rubbing on the functional plate's scrubbing surface. Its effect far surpasses traditional single-rotation cleaning methods, efficiently removing stubborn stains and labels while avoiding damage to materials from high-speed impacts.

[0036] 2. This invention can simultaneously change the extension length of all functional plates through a unique radial adjustment mechanism. By extending the functional plates, the water flow agitation and mechanical force on the materials can be enhanced, which is suitable for treating heavily soiled materials. Shortening the functional plates can achieve gentle cleaning, which is suitable for fragile materials or flexible films and effectively prevents entanglement. By adjustment, the effective working volume divided by the functional plates in the drum screen can be changed to adapt to the processing volume of different batches, so as to achieve high efficiency in small batches and stable operation in large batches.

[0037] 3. The self-cleaning mechanism in this invention, consisting of a washing clamp and a flexible scraper, automatically and continuously cleans the surface of the functional plate and the washing scrubbing plate when the drum rotates, preventing secondary pollution caused by the accumulation of dirt. At the same time, when the functional plate extends radially, the flexible scraper at its top can closely contact the inner wall of the trapezoidal outer cylinder, effectively scraping off the dirt attached to the cylinder wall. This design completely solves the pain point of traditional cleaning equipment requiring frequent shutdowns for cleaning, ensuring the continuity and stability of the production process.

[0038] 4. The trapezoidal cross-section outer cylinder and the eccentrically rotating drum screen work together to guide the fluid inside the cylinder to form a more directional circulating vortex. This flow field not only enhances the cleaning effect and eliminates the cleaning dead zone, but also helps to initially sort plastic fragments (such as bottle bodies and caps) based on density differences during the cleaning process, laying a good foundation for subsequent high-purity recycling. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall first structure of the present invention; Figure 2 This is a schematic diagram of the overall second structure of the present invention; Figure 3 This is a cross-sectional view of the outer cylinder in this invention; Figure 4 This is a schematic diagram of the installation structure of the self-cleaning mechanism of the present invention; Figure 5 This is a cross-sectional view of the rotary screen cylinder in this invention; Figure 6 This is a schematic diagram of the installation structure of the drive mechanism in this invention; Figure 7 This is a schematic diagram of the installation structure of the discharge port 2 of the present invention; Figure 8 This is a schematic diagram of the installation structure of the adjustment mechanism in this invention.

[0040] In the diagram: 1. Support frame; 2. Outer cylinder; 3. Rotary screen cylinder; 4. Rotating shaft one; 5. Functional plate; 21. Water inlet; 22. Water outlet; 23. Feed inlet one; 24. Discharge outlet one; 31. Sliding groove; 32. Feed inlet two; 33. Discharge outlet two; 51. Washing rubbing plate; 61. Washing clamp; 62. Flexible scraper; 71. Sleeve rod; 72. Sleeve; 73. Threaded rod; 74. Drive motor one; 75. Adjusting block; 76. Sliding block; 77. Adjusting ring; 78. Connecting block; 79. Connecting rod; 81. Rotating shaft two; 82. Drive motor two; 83. Belt drive assembly; 831. Driving pulley; 832. Driven pulley; 833. Transmission belt. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figures 1-8 One embodiment provided by the present invention:

[0043] A material processing device based on the remanufacturing of waste products includes a support frame 1 and an outer cylinder 2 fixedly installed thereon. In this embodiment, the problem of uneven internal flow field distribution and dead zones in traditional cleaning equipment is addressed.

[0044] Please see Figure 3 The outer cylinder 2 has a trapezoidal cross-section structure design, which includes its inclined installation on the support frame 1 through bearing seats at both ends, with its feed end higher than its discharge end, so as to use gravity to assist in material conveying; when the trapezoidal cross-section structure is filled with cleaning liquid and running, it can guide the water flow to form a top-down directional circulating vortex, enhance the scouring force of the water flow on the material, and effectively eliminate the cleaning dead zone that is easily formed on both sides of the traditional circular cross-section cylinder.

[0045] In this embodiment, the problem of traditional equipment having a single cleaning method and poor sorting effect is addressed;

[0046] Please see Figure 3 and Figure 5 A rotary screen cylinder 3 is eccentrically positioned inside the outer cylinder 2 via a rotating shaft at one end. Its axis is parallel to but does not coincide with the axis of the outer cylinder 2. The cylinder wall of the rotary screen cylinder 3 is made of screen mesh, and the screen aperture size can be selected according to the typical size of the plastic bottles to be processed and the sorting requirements. The eccentric setting causes the internal space of the rotary screen cylinder 3 to undergo periodic up-down and radial changes relative to the functional plate 5 described later when it rotates, providing a dynamic and non-uniform friction cleaning environment for the material, while realizing the initial separation of solid and liquid during the cleaning process.

[0047] To achieve stable power transmission and a simplified structural design; please refer to Figure 6 In this embodiment, a drive mechanism is set at the feed end of the outer cylinder 2, including a rotating shaft 81 that passes through the end cover of the outer cylinder 2 through a bearing, with its inner end fixedly connected to the axis of the rotary screen cylinder 3 and a driven pulley 832 installed at its outer end; a drive motor 82 is fixedly installed at the bottom of the support frame 1, with a drive pulley 831 installed on its output shaft; and a transmission belt 833 is sleeved on the drive pulley 831 and the driven pulley 832 to form a belt drive assembly 83, which is used to transmit power to the rotating shaft 81, thereby driving the rotary screen cylinder 3 to rotate stably around its own axis.

[0048] In order to achieve stable installation and precise motion control of the core functional components, in this embodiment, a rotating shaft 4 is coaxially set with the outer cylinder 2 through a bearing seat and located at the downward inclined discharge end of the outer cylinder 2. The rotating shaft 4 serves as the installation foundation and rotation center of the core functional components, and its axial position is fixed.

[0049] To achieve efficient and gentle cleaning results and optimize fluid dynamics performance;

[0050] Please see Figure 4 and Figure 5 In this embodiment, several functional plates 5 are evenly distributed around the circumference of the rotating shaft 4. In this embodiment, three functional plates 5 are set. The functional plates 5 penetrate several sets of sliding slots 31 opened on the wall of the rotary screen cylinder 3 and can extend radially into the interior of the outer cylinder 2. The two sides of the functional plates 5 facing the material are provided with washing and scrubbing plates 51 with a high coefficient of friction. The washing and scrubbing plates 51 can be made of rubber or engineering plastic with protrusions. The radial cross-sectional shape of the functional plates 5 is designed to be streamlined or airfoil-shaped to reduce the resistance of its movement in water and optimize the flow field. When the functional plates 5 revolve with the rotary screen cylinder 3 and simultaneously expand and contract radially, the washing and scrubbing plates 51 on them can efficiently agitate the water flow and impact, rub, and scrub the plastic bottles inside the rotary screen cylinder 3.

[0051] To achieve adaptive adjustment of cleaning intensity and multi-functional switching;

[0052] Please see Figure 8 In this embodiment, an adjustment mechanism is installed inside the rotary screen cylinder 3 to synchronously drive all functional plates 5 to extend and retract radially, including:

[0053] A set of rods 71 ​​is rotatably sleeved on one end of the rotating shaft 4 via a bearing;

[0054] A sleeve 72 is slidably sleeved on the outside of the sleeve rod 71 via a key connection;

[0055] A threaded rod 73 has one end threadedly connected to a threaded hole at one end of a sleeve rod 71, and the other end connected to the output shaft of a drive motor 74 via a coupling. The drive motor 74 is located at the end of the sleeve 72.

[0056] Several adjusting blocks 75 are rotatably connected to the outside of the rotating shaft 4 via bearings;

[0057] Several sliding blocks 76 are fixedly connected to the inner end of the function plate 5 and slidably disposed in the groove of the corresponding adjustment block 75. This structure allows the function plate 5 to move radially while adapting to the relative position change between it and the rotating shaft 4 caused by revolution.

[0058] Several adjusting rings 77 are fixedly sleeved on the outside of the sleeve 72;

[0059] And several connecting rods 79, one end of each connecting rod 79 is circumferentially slidably connected to the adjusting ring 77 via a connecting block 78, and the other end is hinged to the side wall of the corresponding functional plate 5.

[0060] In this embodiment, the plurality of adjusting blocks 75 are rotatably connected to the outside of the rotating shaft 4 via bearings, and the connecting rod 79 is circumferentially slidably connected to the adjusting ring 77 via the connecting block 78. The arrangement of these two rotating connection structures has important functional significance.

[0061] Please see Figure 5 and Figure 8Because the rotary screen cylinder 3 is eccentrically set, when it rotates under the drive mechanism, it will drive the functional plate 5 to revolve around the rotating shaft 4 through the sliding groove 31. During this process, the functional plate 5 not only needs to perform radial extension and retraction relative to the rotary screen cylinder 3, but also needs to adapt to the periodic positional changes caused by the eccentric structure between it and the rotary screen cylinder 3. The rotational connection between the adjusting block 75 and the rotating shaft 4, and the circumferential sliding connection of the connecting block 78 in the annular groove of the adjusting ring 77, are precisely to effectively adapt to and compensate for this relative movement, ensure the flexibility and stability of the functional plate 5 in the combined radial extension and revolving motion, avoid motion interference, and ensure that the entire adjusting mechanism can work smoothly and reliably.

[0062] The working principle of the adjustment mechanism in this embodiment is as follows: The drive motor 74 starts and drives the threaded rod 73 to rotate. Since the sleeve rod 71 is restricted by the bearing to only rotate and not move axially, the drive of the threaded pair causes the sleeve 72 to produce axial linear motion along the sleeve rod 71. The linear motion of the sleeve 72 is converted into a pushing or pulling force on the functional plate 5 through the adjusting ring 77 and the connecting rod 79 (forming a crank-slider mechanism), thereby driving all functional plates 5 to achieve synchronous radial extension and retraction. By controlling the forward and reverse rotation and the amount of rotation of the drive motor 74 through the program, the extension length of the functional plate 5 can be precisely adjusted, thereby dynamically adjusting the cleaning intensity, changing the size of the effective working cavity in the sieve cylinder, and controlling the start and stop of the subsequent self-cleaning function.

[0063] To enable the equipment to perform online self-cleaning and prevent secondary pollution;

[0064] Please see Figure 4 In this embodiment, the self-cleaning mechanism includes a washing clamp 61 fixedly mounted on the side wall of the rotary screen cylinder 3 and a flexible scraper 62 mounted on the top of the functional plate 5. The washing clamp 61 is typically made of an elastic material, and its position ensures that it can maintain close contact with the surfaces of the functional plate 5 and the washing clamp 61. When the rotary screen cylinder 3 rotates, the washing clamp 61 can automatically and continuously scrape and clean the surface of the functional plate 5 to prevent dirt accumulation. The flexible scraper 62 is made of a wear-resistant elastic material, and its top shape is adapted to the trapezoidal inner wall contour of the outer cylinder 2. When the functional plate 5 extends radially to a certain length, the flexible scraper 62 can closely contact and press against the inner wall of the outer cylinder 2. With the revolution of the functional plate 5, the flexible scraper 62 can effectively scrape off the dirt attached to the cylinder wall, realizing online self-cleaning of the inner wall of the outer cylinder.

[0065] In order to achieve continuous production and switching between multi-functional operation modes, in this embodiment, a water inlet 21 is opened at the top of the outer cylinder 2 and a water outlet 22 is opened at the bottom for the injection and discharge of cleaning water. This allows the device to achieve continuous or batch cleaning operations. After cleaning is completed, the water inlet is closed and the water outlet 22 is opened to drain the liquid. The device can continue to operate and switch to centrifugal dehydration mode to spin dry the material.

[0066] The outer cylinder 2 and the rotary screen cylinder 3 are respectively provided with feed inlet 23 and feed inlet 32, discharge outlet 24 and discharge outlet 33, and each of them can be equipped with a sealing cover. The material is fed in through the feed inlet, processed in the cylinder, and discharged through the discharge outlet, forming a complete, gravity-assisted automated material flow path.

[0067] In this device, sealing elements (such as mechanical seals or rubber sealing rings) are provided between the rotating shaft 2 81 and the end cap of the outer cylinder 2, between the rotating shaft 1 4 and the bearing seat, and other connecting parts that require relative movement, to ensure the sealing performance of the device and prevent leakage of cleaning fluid. These sealing structures can be achieved using existing waterproof connection methods and are not the focus of improvement in this technical solution, so they will not be described in detail.

[0068] The working principle of the device in this embodiment is as follows:

[0069] Preparation stage: Inject an appropriate amount of cleaning fluid (cleaning agent can be added) into the outer cylinder 2 through the water inlet 21; according to the characteristics of the material to be treated (such as heavily contaminated hard plastic bottles or fragile plastic films), control the function plate 5 to extend to the appropriate initial position through the adjustment mechanism.

[0070] Feeding and cleaning stage: The pre-sorted waste plastics are fed into the device through feed inlet 23 and feed inlet 32.

[0071] After the material enters the rotary screen cylinder 3 through the feed inlet, it is immediately drawn into a composite cleaning environment formed by the coordinated action of multiple motion units. The core of this environment lies in the coordinated operation of the rotary screen cylinder 3 and the functional plate 5 system.

[0072] First, the drive motor 82 drives the rotating shaft 81 through the belt transmission assembly 83, causing the rotary screen cylinder 3 to rotate at a constant speed around the rotating shaft 81. This main motion produces two direct effects: first, it causes the material inside the rotary screen cylinder 3 to tumble, generating basic friction cleaning; second, it causes the washing clamp 61 fixed to the inner wall of the rotary screen cylinder 3 to rotate together.

[0073] Secondly, the revolution of the functional plate: Since the rotary screen cylinder 3 is eccentrically installed inside the outer cylinder 2 through the rotating shaft 2 81, and the inner end of the functional plate 5 is installed on the adjustment mechanism with the rotating shaft 4 as the center, when the rotary screen cylinder 3 rotates, it will fit the functional plate 5 through the sliding groove 31 on its cylinder wall, forcing the entire functional plate 5 assembly to revolve around the fixed rotating shaft 4 as the rotary screen cylinder 3 rotates.

[0074] The core composite motion and cleaning mechanism are realized simultaneously: When the functional plate 5 revolves around the rotating shaft 4, it first acts as a highly efficient agitator, strongly stirring the cleaning water in the drum to form turbulence, generating water flow shear force on the material and washing away loose dirt on the surface; in addition, because the axis of the rotary screen cylinder 3 (i.e., rotating shaft 81) does not coincide with the axis of revolution of the functional plate 5 (i.e., rotating shaft 4) (i.e., eccentric setting), the functional plate 5 is not stationary relative to the inner wall and internal space of the rotary screen cylinder 3 during its revolution, but is making periodic, up-and-down reciprocating radial displacement motion. This results in continuous, bidirectional relative friction and scrubbing between the scrubbing plates 51 on both sides of the functional plate 5 and the material tumbling in the rotary screen cylinder 3. This effect is similar to repeatedly rubbing the material in the rolling material with scrubbing plates, which can effectively remove stubborn stains and labels, while avoiding damage to the bottle body from high-speed impact.

[0075] Adaptive adjustment and multi-functionality: On the one hand, for adjusting water flow and cleaning intensity: by adjusting the radial extension length of the functional plate 5, the stirring range and intensity can be directly affected. When dealing with heavily soiled materials, increasing the extension can enhance the mechanical force on the materials and the turbulence of the water flow; for thin films or fragile materials, reducing the extension provides a gentler cleaning environment and effectively prevents entanglement.

[0076] On the other hand, regarding the start / stop self-cleaning and switching spin-drying modes: when the flexible scraper 62 at the top of the functional plate 5 is adjusted to be in close contact with the inner wall of the outer cylinder 2, the revolution of the functional plate 5 simultaneously drives the flexible scraper 62 to scrape and clean the inner wall of the outer cylinder 2. During the entire process, the washing clamp 61 fixed on the rotary screen cylinder 3 continuously cleans the surface of the functional plate 5 by utilizing the relative movement between the rotary screen cylinder 3 and the functional plate 5. After cleaning, the wastewater is discharged, and the entire system does not need to be stopped. The rotary screen cylinder 3 and the functional plate 5 continue to rotate at high speed. At this time, the system is switched to centrifugal dewatering mode, which uses strong centrifugal force to completely remove the water in the gaps between materials, achieving efficient dewatering.

[0077] In summary, the innovation of this device lies in simultaneously exciting the rotation of the rotary screen cylinder 3 and the revolution of the functional plate 5 through a single drive source (i.e., drive motor 82). An eccentric structure is used to convert the revolution into a reciprocating rubbing motion of the functional plate relative to the material. Furthermore, an independently controllable radial adjustment mechanism integrates the entire process of washing, sorting, and dewatering within a single device, allowing for flexible switching between powerful and gentle cleaning modes. An online self-cleaning function is also organically incorporated, ensuring long-term stable, efficient, and clean operation of the equipment.

[0078] Discharge: The cleaned plastic after processing is discharged from outlet 233 and outlet 124 and enters the next remanufacturing process.

[0079] In summary, this invention, through integrated structural design and intelligent control, efficiently and continuously completes the entire process of cleaning, sorting and dehydrating waste plastics in one device, possessing significant advantages such as good cleaning effect, strong adaptability, high degree of automation and self-cleaning maintenance.

[0080] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A design material processing device based on remanufacturing of waste products, comprising a support frame (1) and an outer cylinder (2) arranged on the support frame (1), characterized in that: the cross section of the outer cylinder (2) is trapezoidal; a rolling sieve cylinder (3) is arranged eccentrically inside the outer cylinder (2), and the axis of the rolling sieve cylinder (3) is parallel to but not coincident with the axis of the outer cylinder (2); a driving mechanism is arranged at one end of the outer cylinder (2) for driving the rolling sieve cylinder (3) to rotate around its own axis; a rotating shaft one (4) is arranged coaxially with the outer cylinder (2) and located at the other end of the outer cylinder (2) which is inclined downward; a plurality of functional plates (5) are uniformly distributed along the circumference of the rotating shaft one (4), one end of the functional plate (5) penetrates through the sliding slot (31) on the cylinder wall of the rolling sieve cylinder (3) and extends into the inner part of the outer cylinder (2), and the two sides of the functional plate (5) facing the material are provided with washing and brushing plates (51); an adjusting mechanism is arranged inside the rolling sieve cylinder (3) for synchronously driving all the functional plates (5) to perform extension and contraction movement along the radial direction thereof; and a self-cleaning mechanism comprises a washing and brushing clamp plate (61) fixedly arranged on the side wall of the rolling sieve cylinder (3) and a flexible scraper (62) arranged at the top end of the functional plate (5), the washing and brushing clamp plate (61) is in contact with the surface of the functional plate (5) and the washing and brushing plate (51) which extends out of the rolling sieve cylinder (3), and the flexible scraper (62) is in contact with the inner wall of the outer cylinder (2) when the functional plate (5) extends out. The adjusting mechanism comprises: a sleeve rod (71) rotatably sleeved outside one end of the rotating shaft one (4) through a bearing, the other end of the rotating shaft one (4) is fixedly connected with the support frame (1); a sleeve (72) is slidingly sleeved outside the sleeve rod (71); a threaded rod (73) is in threaded connection with the sleeve rod (71) at one end and in transmission connection with the output shaft of a driving motor one (74) arranged at the end of the sleeve (72) at the other end; a plurality of adjusting blocks (75) are rotatably connected outside the rotating shaft one (4), and a radial sliding slot is formed in each adjusting block (75); a plurality of sliding blocks (76) are fixedly connected with the inner end of the functional plate (5) and are slidingly arranged in the sliding slot; a plurality of adjusting rings (77) are fixedly sleeved outside the sleeve (72); and a plurality of connecting rods (79) are circumferentially slidingly connected with the adjusting ring (77) through a connecting block (78) at one end and are hingedly connected with the side wall of the corresponding functional plate (5) at the other end. The driving mechanism comprises: a rotating shaft two (81) which penetrates through the outer cylinder (2) and is fixedly connected with the axis of the rolling sieve cylinder (3) at one end; a driving motor two (82) is fixedly installed at the bottom end of the support frame (1); and a belt transmission assembly (83) is connected between the output shaft of the driving motor two (82) and the rotating shaft two (81) for transmitting power. The belt transmission assembly (83) comprises a driving pulley (831) fixedly installed on the output shaft of the driving motor two (82); a driven pulley (832) fixedly installed on the rotating shaft two (81); ​ ​ ​ ​ 2. The design material processing apparatus based on remanufacturing of used products according to claim 1, wherein ​ ​ ​ ​ ​ ​ ​ ​ 3. The design material processing apparatus based on remanufacturing of the used products according to claim 1, wherein ​ ​ ​ ​ 4. The design material processing apparatus based on remanufacturing of the waste product according to claim 3, wherein ​ ​ A transmission belt (833) is sleeved on the driving belt wheel (831) and the driven belt wheel (832).

5. The design material processing apparatus based on remanufacturing of used products according to claim 1, wherein The outer cylinder (2) is provided with a water inlet (21) at the top end and a water outlet (22) at the bottom end.

6. The design material processing apparatus based on remanufacturing of used products according to claim 1, wherein The corresponding ends of the outer cylinder (2) and the rolling screen cylinder (3) are respectively provided with a first feeding port (23) and a second feeding port (32), and a first discharging port (24) and a second discharging port (33).

7. The design material processing apparatus based on remanufacturing of used products according to claim 6, wherein The outer cylinder (2) is arranged obliquely, and the feeding end is higher than the discharging end.

8. The design material processing apparatus based on remanufacturing of used products according to claim 1, wherein The radial cross-sectional shape of the functional plate (5) is streamlined or airfoil-shaped, and the top end shape is matched with the trapezoidal inner wall contour of the outer cylinder (2), so that the flexible scraper (62) can be in overall contact with the inner wall of the outer cylinder (2) when the functional plate (5) is extended.

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