Full-automatic waste plastic cleaning and draining device

Abstract

The application discloses a kind of full-automatic waste plastics cleaning draining device, comprising: cleaning tank, conveying seat, multiple push material components, flushing filter components, drain tank and S-shaped draining component. U-shaped cleaning tank is provided in the groove, and the top side of U-shaped cleaning tank is provided with a feeding port. The conveying seat is fixed to the center of U-shaped cleaning tank, and a conveying assembly is rotatably arranged thereon. Multiple push material components are fixed on the conveying assembly at equal intervals, and the conveying assembly drives multiple push material components to rotate along the inner wall of U-shaped cleaning tank. The flushing filter components are arranged on the inner wall of U-shaped cleaning tank. The application adopts a "cleaning-out material-draining" integrated structure, without manual transfer of waste plastics, through the coordinated cooperation of conveying assembly, push material component and out material component, continuous feeding, moving cleaning, automatic transfer and multi-stage draining of waste plastics are realized, the problem of low efficiency caused by traditional process separation is completely solved, and the labor cost and time cost are greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of waste plastic recycling technology, specifically relating to a fully automatic waste plastic washing and draining device. Background Technology

[0002] Plastics can be divided into two categories: thermosetting and thermoplastic. The former cannot be reshaped and reused, while the latter can be repeatedly produced. Plastics are important organic synthetic polymer materials with a wide range of applications. The non-degradable nature of plastics means that their waste persists for a long time. Moreover, they are often discarded after a single use, making plastic packaging waste an increasingly prominent environmental problem, forming so-called "white pollution," which puts great pressure on the human living environment. Therefore, the recycling of plastic packaging waste is urgently needed.

[0003] After being sorted and recycled, waste plastics can be processed into plastic pellets for reuse in production. However, the surface of recycled waste plastics is usually covered with impurities such as sludge and sand. If not thoroughly cleaned, this will directly affect the quality of the recycled plastic pellets. Existing waste plastic washing equipment has many shortcomings: First, the washing and draining processes are separated, and the washed waste plastics need to be manually transferred to the draining rack, which is time-consuming and labor-intensive, significantly reducing production efficiency. Second, the washing method is singular; soaking or simple rinsing is insufficient to thoroughly remove surface impurities, resulting in poor washing effects. Third, water resource utilization is low; washing water is mostly used once, and no circulating filtration structure is set up, resulting in water waste.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a fully automatic waste plastic washing and draining device.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a fully automatic waste plastic washing and draining device, which can solve the problem of low washing and draining efficiency of existing waste plastic washing devices.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution: A fully automatic waste plastic washing and draining device includes: a washing tank, a conveyor seat, multiple pushing components, a rinsing and filtering component, a draining tank, and an S-shaped draining component.

[0008] The cleaning tank is equipped with a U-shaped cleaning trough, and a feeding port is located on one side of the top of the U-shaped cleaning trough. A conveyor seat is fixed to the center of the U-shaped cleaning trough, and a conveying assembly is rotatably mounted on it. Multiple pushing assemblies are fixed at equal intervals to the conveying assembly, and the conveying assembly drives the multiple pushing assemblies to rotate along the inner wall of the U-shaped cleaning trough. A rinsing and filtering assembly is located on the inner wall of the U-shaped cleaning trough, used to rinse the waste plastic inside the U-shaped cleaning trough while filtering the cleaning water.

[0009] The drain box is located on the side of the washing box away from the feeding port, and a discharge port is provided between the top of the washing box and the drain box. A discharge component is rotatably installed at the discharge port. A discharge outlet is provided at the bottom of the drain box on the side away from the washing box. The S-shaped drain component is located inside the drain box, and its upper and lower ends are respectively connected to the discharge port and the discharge outlet.

[0010] In one embodiment of the present invention, the conveying assembly includes: a pair of output shafts, two pairs of chain teeth, and a pair of chains. The pair of output shafts are rotatably disposed at both ends of the conveying base, and a first motor is connected to the end of the top output shaft located outside the cleaning tank. The two pairs of chain teeth are respectively fixed to the two ends of the pair of output shafts near the two inner sidewalls of the U-shaped cleaning tank. The pair of chains are respectively disposed on the two pairs of chain teeth.

[0011] In use, the first motor drives the output shaft located at the top to rotate. The output shaft at the top drives a pair of chains to rotate through a pair of chain teeth. When the pair of chains rotate, they drive multiple pusher components on them to rotate. In addition, the output shaft located at the bottom and a pair of chain teeth on it are used to assist the rotation of the pair of chains.

[0012] In one embodiment of the present invention, the pushing assembly includes: a pair of obtuse-angled support frames and a plurality of obtuse-angled push rods. The pair of obtuse-angled support frames are respectively fixed to a pair of chains, and a pair of horizontal plates are fixed between the pair of obtuse-angled support frames. The pair of horizontal plates are located on the end arm of the obtuse-angled support frames away from the inner wall of the U-shaped cleaning tank. The plurality of obtuse-angled push rods are fixed at equal intervals to the pair of horizontal plates, and the obtuse angles of the obtuse-angled support frames and the obtuse-angled push rods are the same.

[0013] The obtuse-angle support frame and the obtuse-angle push rod have an obtuse angle between their two arms. When the pushing assembly moves vertically up and down via the chain, the arms of the obtuse-angle support frame and the push rod away from the chain are both horizontal. Therefore, when the pushing assembly moves the waste plastic in the U-shaped cleaning tank upwards, the waste plastic on the side of the obtuse-angle support frame closest to the chain can slide down its inclined arm onto the horizontal arm. This facilitates the pushing assembly moving the waste plastic to the discharge port, where the discharge assembly grabs the waste material from the multiple obtuse-angle push rods and places it into the drain box. A pair of horizontal plates are mainly used to fix the ends of the multiple obtuse-angle push rods closest to the chain, thus keeping the ends of the multiple obtuse-angle push rods away from the chain in an open state, allowing them to intersect with the hooks on each set of discharge claws and move up and down in an interlaced manner.

[0014] In one embodiment of the present invention, a pair of C-shaped connectors are fixed to the ends of the pair of obtuse-angle support frames away from the inner wall of the U-shaped cleaning tank, and the pair of C-shaped connectors are respectively fixed to a pair of adjacent chain links. The pair of obtuse-angle support frames are fixed to the chain by the pair of C-shaped connectors.

[0015] In one embodiment of the present invention, the discharge assembly includes a rotating shaft and multiple sets of discharge claws. The rotating shaft rotates at the discharge port, and its horizontal height is slightly lower than the horizontal height of the top output shaft. A second motor is fixed to one end of the rotating shaft outside the cleaning tank. The multiple sets of discharge claws are fixed at equal intervals on the outer wall of the rotating shaft, and the hooks on each set of discharge claws are staggered with multiple obtuse-angle push rods.

[0016] In operation, a second motor drives a rotating shaft, which in turn rotates multiple sets of discharge claws. As the hooks on these claws pass intermittently between multiple obtuse-angle push rods, they hook up the waste plastic from the push rods and rotate them towards the draining tank. This allows the waste plastic, cleaned in the U-shaped washing trough, to drain into the tank. The rotation speed of the shaft driven by the second motor is greater than the rotation speed of the output shaft driven by the first motor.

[0017] In one embodiment of the present invention, the S-shaped drain assembly includes: a first water collection trough, a second water collection trough, a third water collection trough, a first drain rack, and a pair of second drain racks. The first, second, and third water collection troughs are respectively staggered and fixed to the two inner sidewalls of the drain box, with the first and third water collection troughs respectively located at the discharge port and the outlet. The first drain rack is obliquely fixed to the first water collection trough. The pair of second drain racks are obliquely fixed to the second and third water collection troughs, respectively.

[0018] When the waste plastic, cleaned in the U-shaped washing tank, is rotated by the discharge claw and carried into the washing box, it falls from the discharge claw onto the first drain rack and slides diagonally downwards along it. As it slides along the first drain rack, most of the water drains into the first collection tank and then flows back into the U-shaped washing tank. The waste plastic then slides down the first drain rack onto the second and third collection tanks, where it undergoes multiple draining processes. The vibration generated when the waste plastic falls onto the second drain rack further facilitates the removal of water stains. The drained water is collected in the second and third collection tanks, and a drain pipe connecting the second and third collection tanks is installed on the outer wall of the washing box to discharge the drained water.

[0019] In one embodiment of the present invention, both the first drain rack and the pair of second drain racks are composed of multiple cylindrical sliding rods. The second drain racks are configured with cylindrical sliding rods, which facilitates the sliding of waste plastic on them and prevents waste plastic from getting stuck and clogging.

[0020] In one embodiment of the present invention, the multiple sliding rods on the first drain rack and each set of discharge claw hooks are staggered, so that the first drain rack does not obstruct the rotation of the discharge claws.

[0021] In one embodiment of the present invention, the rinsing and filtering assembly includes: multiple water outlet tanks, multiple sets of spray nozzles, a diversion pipe, and a filter box. The multiple water outlet tanks are respectively excavated at equal intervals on the inner wall of the U-shaped cleaning tank, and each of the multiple water outlet tanks has a partition fixed to its outer side. The multiple sets of spray nozzles are respectively disposed on the inner wall of the multiple water outlet tanks. The diversion pipe is fixed to the outer wall of the cleaning box, and multiple diversion heads are disposed thereon, each of the multiple diversion heads being connected to the multiple sets of spray nozzles. The filter box is disposed outside the cleaning box, and a water suction pipe connects it to the U-shaped cleaning tank. A circulation pump is disposed on one side of the filter box, and the circulation pump is connected to the diversion pipe.

[0022] In operation, a circulating pump draws cleaning water from the U-shaped cleaning tank into a filter box via a suction pipe. After filtration, the water is pumped back to a distribution pipe, which then distributes it through multiple nozzles to various spray patterns. The sprayed water effectively cleans the waste plastic within the U-shaped cleaning tank. A baffle protects the outlet tank from trapped waste plastic. The baffle is grid-shaped, with each spray nozzle corresponding to an opening in the grid, preventing obstruction of the water flow.

[0023] In one embodiment of the present invention, each of the plurality of water outlet troughs is arranged in a quarter-circle shape, and the water nozzles are located on the planar sidewalls of the water outlet troughs. The water spraying direction of the water nozzles is opposite to the conveying direction of the conveying assembly. The water flow sprayed from the nozzles is guided by the arcuate sidewalls of the water outlet troughs, causing the water flow to spray outward in an arc shape. The rinsing and filtering assembly adopts a reverse swirling rinsing design, with the water outlet direction opposite to the plastic conveying direction. Combined with the guidance of the water outlet troughs / circles, a swirling flow is formed, allowing the waste plastic to fully contact the water flow and efficiently peel off the sludge and sand from the surface.

[0024] Compared with the prior art, the fully automatic waste plastic washing and draining device of the present invention adopts an integrated structure of "washing-discharging-draining". It eliminates the need for manual transfer of waste plastics. Through the coordinated operation of the conveying component, the pushing component, and the discharging component, it realizes continuous feeding, moving washing, automatic transfer and multi-stage draining of waste plastics, completely solving the problem of low efficiency caused by the separation of traditional processes, and significantly reducing labor and time costs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a perspective view of a fully automatic waste plastic washing and draining device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the cleaning tank and the draining tank in one embodiment of the present invention; Figure 3 for Figure 2 Schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the chain and pusher assembly in one embodiment of the present invention; Figure 5 This is a schematic diagram of the pusher assembly in one embodiment of the present invention.

[0027] Explanation of key figure labels: 1-Washing tank, 101-U-shaped washing trough, 102-Feeding port, 103-Conveyor seat, 104-Output shaft, 105-Chain teeth, 106-Chain, 107-Pushing assembly, 108-Obt-angle support frame, 109-C-shaped connector, 110-Horizontal plate, 111-Obt-angle push rod, 112-Water outlet trough, 113-Baffle plate, 114-Spray nozzle, 115-Filter box, 116-Circulation pump 117-Diverter pipe, 118-Diverter head, 119-Water suction pipe, 120-First motor, 2-Draining tank, 201-Discharge port, 202-Rotating shaft, 203-Discharge claw, 204-Second motor, 205-First water collection tank, 206-First draining rack, 207-Second water collection tank, 208-Third water collection tank, 209-Second draining rack, 210-Discharge port, 211-Drain pipe. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0029] like Figures 1 to 5 As shown, an embodiment of the present invention provides a fully automatic waste plastic washing and draining device, comprising: a washing tank 1, a conveying seat 103, multiple pushing components 107, a rinsing and filtering component, a draining tank 2, and an S-shaped draining component.

[0030] like Figures 1 to 5 As shown, a U-shaped cleaning trough 101 is provided inside the cleaning tank 1, and a feeding port 102 is provided on one side of the top of the U-shaped cleaning trough 101. A conveyor seat 103 is fixed to the center of the U-shaped cleaning trough 101, and a conveying assembly is rotatably mounted on it. Multiple pushing assemblies 107 are fixed at equal intervals on the conveying assembly, and the conveying assembly drives the multiple pushing assemblies 107 to rotate along the inner wall of the U-shaped cleaning trough 101. A rinsing and filtering assembly is provided on the inner wall of the U-shaped cleaning trough 101, and is used to rinse the waste plastic in the U-shaped cleaning trough 101 while filtering the cleaning water in the U-shaped cleaning trough 101.

[0031] The waste plastics to be cleaned are added into the U-shaped cleaning tank 101 through the feeding port 102. When the conveying component drives multiple pushing components 107 to move in the U-shaped cleaning tank 101, the waste plastics are moved along the U-shaped path in the U-shaped cleaning tank 101. When the waste plastics move in the U-shaped cleaning tank 101, they are washed by the flushing and filtering components on the inner wall of the U-shaped cleaning tank 101 to wash away the mud on the waste plastics. In addition, the flushing and filtering components continuously circulate and filter the cleaning water in the U-shaped cleaning tank 101 during operation. The filtered cleaning water is sprayed out for cleaning.

[0032] like Figures 1 to 5 As shown, the drain box 2 is located on the side of the washing box 1 away from the feeding port 102, and a discharge port 201 is provided between the top of the washing box 1 and the drain box 2. A discharge component is rotatably installed at the discharge port 201, and a discharge port 210 is provided at the bottom of the drain box 2 on the side away from the washing box 1. An S-shaped drain component is installed inside the drain box 2, and its upper and lower ends are respectively connected to the discharge port 201 and the discharge port 210.

[0033] The conveying component drives multiple pushing components 107 to rotate, pushing the waste plastic to the discharge port 201. The discharge component pushes the waste plastic on the pushing component 107 into the drain box 2. After the waste plastic is drained by the S-shaped drain component, it is discharged through the discharge port 210.

[0034] like Figures 2 to 4 As shown, the conveying assembly includes: a pair of output shafts 104, two pairs of chain teeth 105, and a pair of chains 106. The pair of output shafts 104 are rotatably mounted at both ends of the conveying base 103, and a first motor 120 is connected to the end of the top output shaft 104 located outside the cleaning tank 1. The two pairs of chain teeth 105 are fixed to both ends of the pair of output shafts 104 near the two inner sidewalls of the U-shaped cleaning tank 101. The pair of chains 106 are respectively mounted on the two pairs of chain teeth 105.

[0035] In use, the first motor 120 drives the output shaft 104 located at the top to rotate. The output shaft 104 at the top drives a pair of chains 106 to rotate through a pair of chain teeth 105 on it. When the pair of chains 106 rotate, they drive multiple pusher components 107 on them to rotate. In addition, the output shaft 104 located at the bottom and the pair of chain teeth 105 on it are used to assist the rotation of the pair of chains 106.

[0036] like Figures 2 to 5As shown, the feeding assembly 107 includes: a pair of obtuse-angle support frames 108 and a plurality of obtuse-angle push rods 111. The pair of obtuse-angle support frames 108 are respectively fixed to a pair of chains 106, and a pair of horizontal plates 110 are fixed between the pair of obtuse-angle support frames 108, and the pair of horizontal plates 110 are located on the support arm of the obtuse-angle support frame 108 away from the inner wall of the U-shaped cleaning tank 101. The plurality of obtuse-angle push rods 111 are fixed at equal intervals on the pair of horizontal plates 110, and the obtuse angles of the obtuse-angle support frames 108 and the obtuse-angle push rods 111 are the same.

[0037] The obtuse angle between the two arms of the obtuse angle support frame 108 and the obtuse angle push rod 111 is set as obtuse angle. When the pusher assembly 107 moves vertically up and down driven by the chain 106, the arms of the obtuse angle support frame 108 and the obtuse angle push rod 111 away from the chain 106 are both in a horizontal state. Thus, when the pusher assembly 107 moves the waste plastic in the U-shaped cleaning tank 101 upward, the waste plastic on the side of the obtuse angle support frame 108 close to the chain 106 can slide down to the horizontal arm through its inclined arm. This makes it convenient for the pusher assembly 107 to move the waste plastic to the discharge port 201, and the discharge assembly grabs the waste material on the multiple obtuse angle push rods 111 into the drain box 2. A pair of horizontal plates 110 are mainly used to fix the ends of multiple obtuse angle push rods 111 near the chain 106, thereby keeping the ends of multiple obtuse angle push rods 111 away from the chain 106 in an open state, which facilitates their intersection with the hooks on each set of discharge claws 203 and allows them to move up and down interlaced.

[0038] Preferably, the obtuse angle of the obtuse angle support frame 108 and the obtuse angle push rod 111 is 120°-150° to ensure the material bearing effect of the horizontal support arm and the material guiding effect of the inclined support arm.

[0039] like Figures 2 to 5 As shown, a pair of obtuse-angle support frames 108 are each fixed to a pair of C-shaped connectors 109 at the end away from the inner wall of the U-shaped cleaning tank 101. The pair of C-shaped connectors 109 are respectively fixed to a pair of adjacent links of the chain 106. The pair of obtuse-angle support frames 108 are fixed to the chain 106 by the pair of C-shaped connectors 109.

[0040] like Figures 2 to 4 As shown, the discharge assembly includes a rotating shaft 202 and multiple sets of discharge claws 203. The rotating shaft 202 rotates at the discharge port 201, and its horizontal height is slightly lower than the horizontal height of the top output shaft 104. A second motor 204 is fixed to one end of the rotating shaft 202 outside the cleaning tank 1. Multiple sets of discharge claws 203 are fixed at equal intervals on the outer wall of the rotating shaft 202, and the hooks on each set of discharge claws 203 are staggered with multiple obtuse-angle push rods 111.

[0041] In operation, the second motor 204 drives the rotating shaft 202 to rotate, which in turn drives multiple sets of discharge claws 203 to rotate. As the multiple hooks on the discharge claws 203 pass through the multiple obtuse-angle push rods 111 in an alternating pattern, they hook up the waste plastic on the push rods 111 and rotate them towards the draining tank 2, allowing the waste plastic, which has been cleaned by the U-shaped cleaning tank 101, to enter the draining tank 2 for draining. The rotation speed of the rotating shaft 202 driven by the second motor 204 is greater than the rotation speed of the output shaft 104 driven by the first motor 120.

[0042] like Figures 1 to 2 As shown, the S-shaped drain assembly includes: a first water collection trough 205, a second water collection trough 207, a third water collection trough 208, a first drain rack 206, and a pair of second drain racks 209. The first water collection trough 205, the second water collection trough 207, and the third water collection trough 208 are respectively staggered and fixed to the two inner side walls of the drain box 2, with the first water collection trough 205 and the third water collection trough 208 respectively located at the discharge port 201 and the discharge outlet 210. The first drain rack 206 is obliquely fixed to the first water collection trough 205. The pair of second drain racks 209 are obliquely fixed to the second water collection trough 207 and the third water collection trough 208, respectively.

[0043] When the waste plastic that has been cleaned in the U-shaped cleaning tank 101 is rotated and carried into the cleaning box 1 by the discharge claw 203, the waste plastic is poured from the discharge claw 203 onto the first drain rack 206 and slides diagonally downward along the first drain rack 206. When the waste plastic slides on the first drain rack 206, most of the water will be drained and fall into the first water collection tank 205 and flow back into the U-shaped cleaning tank 101. Waste plastic slides down the first drain rack 206 onto the second drain rack 209 on the second collection tank 207 and the third collection tank 208 for multiple draining cycles. When the waste plastic falls onto the second drain rack 209, it generates a certain vibration, which helps the water stains on the waste plastic to come off. The drained water is collected in the second collection tank 207 and the third collection tank 208. A drain pipe 211 is provided on the outer wall of the drain box 2, connecting the second collection tank 207 and the third collection tank 208. The drained water is discharged through the drain pipe 211.

[0044] like Figures 1 to 2 As shown, both the first drain rack 206 and the pair of second drain racks 209 are composed of multiple cylindrical sliding rods. The cylindrical sliding rods of the second drain racks 209 facilitate the sliding of waste plastic and prevent it from getting stuck and clogging. The multiple sliding rods on the first drain rack 206 and the hooks of each set of discharge claws 203 are staggered, so that the first drain rack 206 does not obstruct the rotation of the discharge claws 203.

[0045] like Figures 1 to 3As shown, the rinsing and filtering assembly includes: multiple water outlet tanks 112, multiple sets of spray nozzles 114, a diversion pipe 117, and a filter box 115. The multiple water outlet tanks 112 are equally spaced and carved into the inner wall of the U-shaped cleaning tank 101, and each of the multiple water outlet tanks 112 is fixed with a partition 113 on its outer side. The multiple sets of spray nozzles 114 are respectively disposed on the inner wall of the multiple water outlet tanks 112. The diversion pipe 117 is fixed to the outer wall of the cleaning box 1, and multiple diversion heads 118 are disposed on it, each connected to one of the multiple sets of spray nozzles 114. The filter box 115 is disposed on the outer side of the cleaning box 1, and a water suction pipe 119 connects it to the U-shaped cleaning tank 101. A circulation pump 116 is disposed on one side of the filter box 115, and the circulation pump 116 is connected to the diversion pipe 117.

[0046] In use, the circulating pump 116 drives the cleaning water in the U-shaped cleaning tank 101, which is then drawn into the filter box 115 through the suction pipe 119. After being filtered by the filter box 115, the cleaning water is transported to the diversion pipe 117 by the circulating pump 116. The diversion pipe 117 then distributes the cleaning water to multiple sets of spray nozzles 114 through multiple diversion heads 118. The cleaning water sprayed from the multiple sets of spray nozzles 114 cleans the waste plastic in the U-shaped cleaning tank 101. The baffle 113 protects the outlet tank 112 to prevent waste plastic from getting stuck in it. In addition, the baffle 113 is grid-shaped, and the spray nozzles 114 correspond to the grid openings on the baffle 113, thereby preventing the baffle 113 from obstructing the water flow from the spray nozzles 114.

[0047] Preferably, the diverter head 118 is a high-pressure diverter head, which can increase the water pressure at the nozzle 114 and enhance the cleaning effect.

[0048] like Figures 1 to 3 As shown, multiple water outlet tanks 112 are arranged in a quarter-circle shape, and water nozzles 114 are located on the planar sidewall of the water outlet tank 112. The water spraying direction of the water nozzles 114 is opposite to the conveying direction of the conveying components. The water flow sprayed from the water nozzles 114 is guided by the arc-shaped sidewall of the water outlet tank 112, causing the water flow to spray outward in an arc shape. The rinsing filter components adopt a reverse swirling rinsing design. The water outlet direction of the water nozzles 114 is opposite to the plastic conveying direction. Combined with the guidance of the quarter-circle of the water outlet tank, a swirling flow is formed, which allows the waste plastic to fully contact the water flow and efficiently remove the sludge and sand from the surface.

[0049] Working principle: This device achieves fully automated operation of the entire process of waste plastic "feeding-circulation cleaning-automatic discharge-multi-stage draining-discharge" through the coordinated cooperation of various components. It requires no manual intervention, greatly improves production efficiency, and has the advantages of good cleaning effect, water resource recycling and stable operation, making it suitable for large-scale industrial application.

[0050] First, the feeding and conveying are started. The waste plastic to be cleaned is put into the U-shaped cleaning tank 101 through the feeding port 102 of the cleaning tank 1. The first motor 120 is started. The first motor 120 drives the top output shaft 104 to rotate. The output shaft 104 drives a pair of chains 106 to rotate synchronously through the chain teeth 105. In turn, the pusher components 107 fixed at equal intervals on the chains 106 rotate in a cycle along the inner wall of the U-shaped cleaning tank 101.

[0051] Secondly, the circulating vortex cleaning process begins. The circulating pump 116 is started, and the rinsing of the filter components begins: the cleaning water in the U-shaped cleaning tank 101 is sucked into the filter box 115 through the water pump 119. After the filter box 115 filters out impurities such as sludge and sand, it is transported by the circulating pump 116 to the diversion pipe 117. Then, it is diverted to the spray nozzles 114 in each water outlet 112 through multiple diversion heads 118 on the diversion pipe 117. The spray nozzles 114 discharge water in the opposite direction to the plastic conveying direction. The water is guided by the 1 / 4 circular structure of the water outlet 112 to form a vortex, which fully contacts the waste plastic driven by the pusher component 107, effectively removing the attachments on its surface. The grid-shaped baffle 113 protects the water outlet 112 to prevent waste plastic from getting stuck, while not affecting the water flow. This achieves the dual effect of circulating filtration and high-pressure vortex cleaning of the cleaning water.

[0052] In addition, for the feeding and automatic discharging, the obtuse angle support frame 108 and obtuse angle push rod 111 of the feeding component 107 are obtuse angle structures. During the rotation along the U-shaped cleaning trough 101, the support arm away from the chain 106 always remains horizontal, which can stably support the waste plastic as it moves with the conveying component. When the feeding component 107 moves the cleaned waste plastic to the discharge port 201, the second motor 204 is started. Its speed is greater than that of the first motor 120 to ensure rapid material picking. The second motor 204 drives the rotating shaft 202 to rotate, which in turn drives multiple sets of discharge claws 203 to rotate. The hooks of the discharge claws 203 pass through the obtuse angle push rod 111 in an alternating manner, hooking the waste plastic on the obtuse angle push rod 111 and rotating it towards the drain box 2, so that the waste plastic falls smoothly into the S-shaped drain component of the drain box 2, completing the automatic transfer of the cleaned plastic.

[0053] Then, the waste plastic undergoes multi-stage continuous draining. After falling from the discharge claw 203 into the first drain rack 206, it slides diagonally downwards along the cylindrical slide bar. During the sliding process, most of the water drips off and falls into the first water collection tank 205, and flows back to the U-shaped washing tank 101 through the connecting pipe to achieve water resource reuse. The waste plastic continues to slide down to the second drain rack 209 on the second water collection tank 207 and the third water collection tank 208 for secondary and tertiary draining. The vibration generated when falling onto the drain rack can further promote the removal of water stains from the surface of the waste plastic. The dripped water stains are collected in the second water collection tank 207 and the third water collection tank 208, and finally discharged through the drain pipe 211. The cylindrical slide bar structure of the S-shaped drain rack effectively avoids the waste plastic from getting stuck and blocked, ensuring the continuity of the draining process.

[0054] Finally, the finished product is discharged. The waste plastic, after being drained through multiple stages by the S-shaped drain assembly, slides to the discharge port 210 at the bottom of the drain box 2. The clean and drained waste plastic is discharged from the discharge port 210 and can be directly entered into the subsequent granulation processing.

[0055] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure 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 this disclosure 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 this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fully automatic waste plastic washing and draining device, characterized in that, include: A cleaning tank, wherein a U-shaped cleaning trough is provided inside the cleaning tank, and a feeding port is provided on one side of the top of the U-shaped cleaning trough; A conveyor seat is fixed at the center of the U-shaped cleaning tank, and a conveying component is rotatably mounted on it; Multiple pushing components are fixed at equal intervals on the conveying component, and the conveying component drives the multiple pushing components to rotate along the inner wall of the U-shaped cleaning tank; A rinsing and filtering assembly is installed on the inner wall of the U-shaped cleaning tank to rinse the waste plastic in the U-shaped cleaning tank and filter the cleaning water in the U-shaped cleaning tank at the same time. A draining box is located on the side of the washing box away from the feeding port, and a discharge port is provided between the top of the washing box and the draining box. A discharge component is rotatably provided at the discharge port, and a discharge outlet is provided at the bottom of the draining box on the side away from the washing box. An S-shaped drain assembly is installed inside the drain box, with its upper and lower ends connected to the discharge port and the outlet, respectively.

2. The fully automatic waste plastic washing and draining device according to claim 1, characterized in that, The conveying assembly includes: A pair of output shafts are rotatably disposed at both ends of the conveyor seat, and the end of the top output shaft located outside the cleaning tank is connected to a first motor; Two pairs of chain teeth are fixed to the two ends of a pair of output shafts near the two inner walls of the U-shaped cleaning tank; and A pair of chains, each set on a pair of teeth.

3. The fully automatic waste plastic washing and draining device according to claim 2, characterized in that, The feeding assembly includes: A pair of obtuse-angle support frames are respectively fixed to a pair of chains. A pair of horizontal plates are fixed between the pair of obtuse-angle support frames, and the pair of horizontal plates are located on the support arm of the obtuse-angle support frame away from the inner wall of the U-shaped cleaning tank; and Multiple obtuse-angle push rods are fixed at equal intervals on a pair of horizontal plates, and the obtuse angles of the obtuse-angle support frame and the obtuse-angle push rods are the same.

4. The fully automatic waste plastic washing and draining device according to claim 3, characterized in that, Each pair of obtuse-angle support frames is fixed with a pair of C-shaped connectors at the end away from the inner wall of the U-shaped cleaning tank. The pair of C-shaped connectors are respectively fixed at a pair of adjacent chain links.

5. The fully automatic waste plastic washing and draining device according to claim 4, characterized in that, The discharge assembly includes: A rotating shaft rotates at the discharge port, and its horizontal height is slightly lower than that of the top output shaft. A second motor is fixed to one end of the rotating shaft outside the cleaning tank. Multiple sets of discharge claws are fixed at equal intervals on the outer wall of the rotating shaft, and the hooks on each set of discharge claws are staggered with multiple obtuse-angle push rods.

6. The fully automatic waste plastic washing and draining device according to claim 5, characterized in that, The S-shaped drainage component includes: The first water collection tank, the second water collection tank, and the third water collection tank are respectively fixed to the two inner side walls of the drain box in an alternating manner, and the first water collection tank and the third water collection tank are respectively located at the discharge port and the discharge outlet. The first drain rack is fixed obliquely to the first water collection tank; and A pair of second drain racks are fixed obliquely to the second and third water collection tanks, respectively.

7. The fully automatic waste plastic washing and draining device according to claim 6, characterized in that, The first drain rack and a pair of second drain racks are each composed of multiple cylindrical sliding rods.

8. The fully automatic waste plastic washing and draining device according to claim 7, characterized in that, The multiple sliding rods and each set of discharge claws on the first drain rack are staggered.

9. The fully automatic waste plastic washing and draining device according to claim 1, characterized in that, The flushing filter assembly includes: Multiple water outlets are equally spaced and carved into the inner wall of the U-shaped cleaning tank, and partitions are fixed to the outer sides of each water outlet. Multiple sets of water spray nozzles are respectively installed on the inner wall of multiple water outlet tanks; A diversion pipe is fixed to the outer wall of the cleaning tank, and multiple diversion heads are provided on it, each of which is connected to multiple sets of water spray nozzles; and A filter box is located outside the cleaning tank, and a water pump is connected between the filter box and the U-shaped cleaning tank. A circulation pump is installed on one side of the filter box, and the circulation pump is connected to the diversion pipe.

10. The fully automatic waste plastic washing and draining device according to claim 1, characterized in that, Each of the aforementioned water outlets is arranged in a quarter-circle shape, and the water spray nozzles are located on the planar sidewalls of the water outlets. The water spray direction of the water spray nozzles is opposite to the conveying direction of the conveying component.

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