Granulator cleaning device for plastic processing

Abstract

The utility model discloses a granulator cleaning device for plastic processing. The granulator cleaning device comprises a cleaning box, the cleaning box is fixedly arranged at the feeding port of the granulator, firstly, plastic strips are conveyed into the cleaning box through the inlet, fall onto the water filter screen, can slide to the outlet along the water filter screen and then fall into the feeding port of the granulator, feeding of the plastic strips is completed, and when the plastic strips slide on the water filter screen, under movement of the lifting assembly, the plastic strips are conveyed into the cleaning box through the cleaning box. Under the cooperation of the ventilation assembly, air is supplied to the spraying pipe and then blown to the surface of the plastic strip through the spraying head, under the cooperation of the driving assembly and the elastic assembly, the plastic strip is driven to continuously vibrate, and water stains on the surface of the plastic strip are thrown down. And meanwhile, the plastic strips can be vibrated and turned over, so that the plastic strips can be fully air-dried conveniently, feeding of the plastic strips is facilitated, machining of the granulator is facilitated, and the machining efficiency of the granulator is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically to a cleaning device for a pelletizer used in plastic processing. Background Technology

[0002] A plastic pelletizer is a type of pelletizer mainly used for processing waste plastic film, industrial packaging film, agricultural mulch film, greenhouse film, beer bags, tote bags, woven bags, agricultural convenience bags, basins, buckets, beverage bottles, furniture, daily necessities, etc. It is suitable for most common waste plastics and is the most widely used, most popular, and most widely accepted plastic recycling processing machinery in the waste plastic recycling industry.

[0003] When waste plastics are recycled, they need to be heated and extruded into strips, cooled in a water tank, and then fed into a plastic pelletizer for pelletizing. However, existing plastic pelletizers lack drying and cleaning equipment around the feed inlet, failing to remove water stains from the plastic strips. This results in water droplets and impurities adhering to the surface of the plastic strips entering the pelletizer, typically dripping around the feed inlet. This hinders the feeding of the plastic strips and thus impedes pelletizing, reducing the pelletizer's processing efficiency. Utility Model Content

[0004] In order to solve the above problems, the purpose of this utility model is to provide a cleaning device for a plastic pelletizer, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes a cleaning device for a plastic pelletizer, comprising: a cleaning box; the cleaning box is fixedly installed at the feed inlet of the pelletizer, and an inlet and an outlet are respectively opened on both sides of the cleaning box, the outlet being connected to the feed inlet of the pelletizer; a filter screen is rotatably connected to the inner wall of the cleaning box near the inlet, one end of the filter screen extends into the outlet, and a spray pipe is provided inside the cleaning box above the filter screen, the bottom end of the spray pipe being connected to multiple nozzles;

[0006] A lifting assembly is located at the top of the inner wall of the cleaning box. The lifting assembly is connected to the nozzle and is used to drive the nozzle to move up and down.

[0007] A ventilation assembly is disposed on one side of the cleaning box and is connected to the nozzle for ventilating the nozzle.

[0008] A drive assembly is disposed on one side of the inner wall of the cleaning tank. The drive assembly is connected to the top of the filter screen and is used to drive the movement of the filter screen.

[0009] An elastic component is disposed on the other side of the inner wall of the cleaning tank. The elastic component is connected to the bottom end of the filter screen and is used to drive the elastic movement of the filter screen.

[0010] The water outlet is located at the bottom of the cleaning tank and is used for draining water.

[0011] In one example, the lifting assembly includes two lifting rods hinged to the top of the nozzle, each of the two lifting rods having a first slider hinged to its top. The top of the inner wall of the cleaning box has a first groove for the first slider to slide in. A bidirectional lead screw threaded to the first slider is rotatably connected in the first groove. A drive motor fixed to the bidirectional lead screw is fixed on one side of the cleaning box.

[0012] In one example, the ventilation assembly includes a fan fixedly mounted on one side of the cleaning box, the fan being connected to a nozzle via a hose.

[0013] In one example, the drive assembly includes a rotating rod rotatably disposed on the inner wall of the cleaning tank, one end of which is fixed with a cam that abuts against the water filter screen, and the rotating rod is connected to a bidirectional lead screw via a linkage assembly.

[0014] In one example, the elastic component includes a connecting rod hinged to the bottom end of the filter screen, the bottom end of the connecting rod being hinged to a second slider, and the inner wall of the cleaning box having a second groove for the second slider to slide in, the second groove being fixedly connected to the second slider by a spring.

[0015] In one example, the linkage assembly includes a first pulley sleeved on the outer wall of the bidirectional lead screw, and a second pulley sleeved on the outer wall of the rotating rod, wherein the first pulley is connected to the second pulley via a belt.

[0016] The cleaning device for a plastic pelletizer proposed in this utility model can bring the following beneficial effects:

[0017] This plastic pelletizer cleaning device first feeds plastic strips into the cleaning box through the inlet. The plastic strips fall onto a filter screen and slide down to the outlet, then into the pelletizer's feed inlet, completing the feeding process. As the plastic strips slide down the filter screen, the lifting assembly moves the spray pipe and nozzle up and down, adjusting the distance between the nozzle and the plastic strip. With the assistance of the ventilation assembly, air is supplied to the spray pipe and then blown onto the surface of the plastic strip through the nozzle. The drive assembly and elastic assembly work together to cause continuous vibration of the plastic strip, shaking off water stains and simultaneously turning the strip over, thus facilitating thorough drying and easier feeding, thereby improving the pelletizer's processing efficiency. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the planar structure of the cleaning box of this utility model;

[0021] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Cleaning box; 2. Inlet; 3. Outlet; 4. Filter screen; 5. Spray pipe; 6. Nozzle; 7. Lifting assembly; 71. Lifting rod; 72. First slider; 73. First slide groove; 74. Two-way lead screw; 75. Drive motor; 8. Ventilation assembly; 81. Fan; 82. Hose; 9. Drive assembly; 91. Rotating rod; 92. Cam; 10. Elastic assembly; 101. Connecting rod; 102. Second slider; 103. Second slide groove; 104. Spring; 11. Water outlet; 12. Linkage assembly; 121. First pulley; 122. Second pulley; 123. Belt. Detailed Implementation

[0023] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0024] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0028] like Figures 1-3 As shown, an embodiment of this utility model proposes a cleaning device for a plastic pelletizer, including: a cleaning box 1; the cleaning box 1 is fixedly installed at the feed inlet of the pelletizer, and an inlet 2 and an outlet 3 are respectively opened on both sides of the cleaning box 1. The outlet 3 is connected to the feed inlet of the pelletizer. A filter screen 4 is rotatably connected to the inner wall of the cleaning box 1 near the inlet 2. One end of the filter screen 4 extends into the outlet 3. A spray pipe 5 is provided inside the cleaning box 1 above the filter screen 4. The bottom end of the spray pipe 5 is connected to multiple nozzles 6.

[0029] The lifting assembly 7 is located at the top of the inner wall of the cleaning box 1. The lifting assembly 7 is connected to the nozzle 5 and is used to drive the nozzle 5 to move up and down.

[0030] Ventilation component 8 is located on one side of cleaning box 1. Ventilation component 8 is connected to nozzle 5 and is used to ventilate into nozzle 5.

[0031] The drive assembly 9 is located on one side of the inner wall of the cleaning box 1. The drive assembly 9 is connected to the top of the filter screen 4 and is used to drive the movement of the filter screen 4.

[0032] The elastic component 10 is disposed on the other side of the inner wall of the cleaning box 1. The elastic component 10 is connected to the bottom end of the filter screen 4 and is used to drive the elastic movement of the filter screen 4.

[0033] The water outlet 11 is located at the bottom of the cleaning tank 1 and is used for water discharge.

[0034] In this embodiment, the cleaning box 1 is first installed at the feed inlet of the pelletizer, connecting the outlet 3 to the feed inlet. Then, plastic strips are fed into the cleaning box 1 through the inlet 2. The plastic strips first fall onto the filter screen 4, which is tilted, allowing the plastic strips to slide down to the outlet 3 and then back into the pelletizer feed inlet, completing the feeding process. As the plastic strips slide down the filter screen 4, the lifting assembly 7 moves the spray pipe 5 and nozzle 6 up and down, adjusting the distance between the nozzle 6 and the plastic strip. With the assistance of the ventilation assembly 8, air is supplied to the spray pipe 5 and then blown onto the surface of the plastic strip through the nozzle 6. With the assistance of the drive assembly 9 and the elastic assembly 10, the plastic strips vibrate continuously, shaking off water stains and simultaneously turning them over, facilitating thorough drying and feeding. This improves the processing efficiency of the pelletizer.

[0035] In a further embodiment, such as Figure 2 As shown, the lifting assembly 7 includes two lifting rods 71 ​​hinged to the top of the nozzle 5. The top of each of the two lifting rods 71 ​​is hinged to a first slider 72. The top of the inner wall of the cleaning box 1 is provided with a first groove 73 for the first slider 72 to slide. A bidirectional lead screw 74 threadedly connected to the first slider 72 is rotatably connected in the first groove 73. A drive motor 75 fixed to the bidirectional lead screw 74 is fixed on one side of the cleaning box 1.

[0036] In this embodiment, when the plastic strip slides down the filter screen 4, the drive motor 75 drives the bidirectional lead screw 74 to rotate. The bidirectional lead screw 74 drives the two first sliders 72 to move in opposite directions. The two first sliders 72 drive the two lifting rods 71 ​​to swing in opposite directions, thereby driving the nozzle 5 to move up and down. The nozzle 5 drives the nozzle 6 to move up and down, adjusting the distance between the nozzle 6 and the plastic strip, so as to facilitate air drying of the plastic strip through the nozzle 6.

[0037] In a further embodiment, such as Figure 2 As shown, the ventilation assembly 8 includes a fan 81 fixedly installed on one side of the cleaning box 1, and the fan 81 is connected to the spray pipe 5 through a hose 82.

[0038] In this embodiment, with the fan 81 working, ventilation is supplied to the nozzle 5 through the hose 82, and then blown out through the nozzle 6 to dry the plastic strip.

[0039] In a further embodiment, such as Figure 2As shown, the drive assembly 9 includes a rotating rod 91 rotatably disposed on the inner wall of the cleaning box 1. One end of the rotating rod 91 is fixed with a cam 92 that abuts against the filter screen 4. The rotating rod 91 is connected to the bidirectional lead screw 74 through the linkage assembly 12. The elastic assembly 10 includes a connecting rod 101 hinged to the bottom end of the filter screen 4. The bottom end of the connecting rod 101 is hinged with a second slider 102. The inner wall of the cleaning box 1 is provided with a second slide groove 103 for the second slider 102 to slide. The second slide groove 103 is fixedly connected to the second slider 102 through a spring 104. The linkage assembly 12 includes a first pulley 121 sleeved on the outer wall of the bidirectional lead screw 74. The outer wall of the rotating rod 91 is sleeved with a second pulley 122. The first pulley 121 is connected to the second pulley 122 through a belt 123.

[0040] In this embodiment, when the bidirectional lead screw 74 rotates, it drives the first pulley 121 to rotate. The first pulley 121 drives the second pulley 122 to rotate via the belt 123. The second pulley 122 drives the rotating rod 91 to rotate, which in turn drives the cam 92 to rotate. The rotation of the cam 92 drives the movement of the filter screen 4, which in turn drives the movement of the connecting rod 101. The connecting rod 101 drives the movement of the second slider 102, which in turn compresses the spring 104. Thus, with the reciprocating rotation of the cam 92 and the elastic cooperation of the spring 104, the filter screen 4 can be driven to vibrate continuously. During the vibration of the filter screen 4, water stains on the surface of the plastic strip are shaken off, and the plastic strip is also vibrated and turned over, which facilitates the rapid drying of the plastic strip and improves the drying efficiency of the plastic strip.

[0041] The working principle of a cleaning device for a plastic pelletizer is as follows: First, the cleaning box 1 is installed at the feed inlet of the pelletizer, connecting the outlet 3 to the feed inlet. Then, plastic strips are conveyed into the cleaning box 1 through the inlet 2. The plastic strips fall onto the filter screen 4. Under the movement of the drive motor 75, the bidirectional lead screw 74 rotates. The bidirectional lead screw 74 drives the two first sliders 72 to move in opposite directions. The two first sliders 72 drive the two lifting rods 71 ​​to swing in opposite directions, thereby driving the spray pipe 5 to move up and down. The spray pipe 5 drives the nozzle 6 to move up and down, adjusting the distance between the nozzle 6 and the plastic strip. At the same time, under the operation of the fan 81, ventilation is supplied to the spray pipe 5 through the hose 82, and then blown out through the nozzle 6, thus blowing air onto the plastic strip for easy drying. When the lead screw 74 rotates, it drives the first pulley 121 to rotate. The first pulley 121 drives the second pulley 122 to rotate via the belt 123. The second pulley 122 drives the rotating rod 91 to rotate, which in turn drives the cam 92 to rotate. The rotation of the cam 92 drives the movement of the filter screen 4, which in turn drives the movement of the connecting rod 101. The connecting rod 101 drives the movement of the second slider 102, which in turn compresses the spring 104. Thus, with the reciprocating rotation of the cam 92 and the elastic cooperation of the spring 104, the filter screen 4 can be driven to vibrate continuously. During the vibration of the filter screen 4, water stains on the surface of the plastic strip are thrown off, and the plastic strip is vibrated and turned over, which facilitates the rapid drying of the plastic strip and the feeding of the plastic strip, thereby facilitating the processing of the pelletizer and improving the processing efficiency of the pelletizer.

[0042] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0043] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A pellet mill cleaning device for use in plastic processing, comprising: The utility model provides a cleaning box (1), its characterized in be that: the cleaning box (1) is fixedly arranged at the feed inlet of pelletizer, and the both sides of cleaning box (1) are opened with inlet (2) and outlet (3) respectively, and the outlet (3) is connected with the feed inlet of pelletizer, and the inner wall of cleaning box (1) is rotatably connected with filter water net (4) near the side of inlet (2), and one end of filter water net (4) penetrates to the inside of outlet (3), and the inside of cleaning box (1) is equipped with the spray pipe (5) located above filter water net (4), and the bottom end of spray pipe (5) is communicated with a plurality of spray heads (6). Lifting assembly (7) is arranged at the top of the inner wall of cleaning box (1), and the lifting assembly (7) is connected with the spray pipe (5), for driving the up-down movement of spray pipe (5). Ventilation assembly (8) is arranged on one side of cleaning box (1), and the ventilation assembly (8) is connected with the spray pipe (5), for ventilating the inside of spray pipe (5). Driving assembly (9) is arranged on one side of the inner wall of cleaning box (1), and the driving assembly (9) is connected with the top of filter water net (4), for driving the movement of filter water net (4). Elastic assembly (10) is arranged on the other side of the inner wall of cleaning box (1), and the elastic assembly (10) is connected with the bottom end of filter water net (4), for driving the elastic movement of filter water net (4). Water outlet (11) is opened in the bottom end of cleaning box (1), for discharging water.

2. A pellet mill cleaning device for use in plastic processing as claimed in claim 1, characterized in that: The lifting assembly (7) includes two lifting rods (71) hingedly arranged at the top of the spray pipe (5), and the top of each lifting rod (71) is hingedly connected with a first sliding block (72), and the top of the inner wall of the cleaning box (1) is provided with a first sliding groove (73) for sliding the first sliding block (72), and the first sliding groove (73) is rotatably connected with a bidirectional screw rod (74) threadedly connected with the first sliding block (72), and one side of the cleaning box (1) is fixedly provided with a driving motor (75) fixedly connected with the bidirectional screw rod (74).

3. A pellet mill cleaning device for use in plastic processing as claimed in claim 2, characterized in that: The ventilation assembly (8) includes a fan (81) fixedly arranged on one side of the cleaning box (1), and the fan (81) is communicated with the spray pipe (5) through a hose (82).

4. A pellet mill cleaning device for use in plastic processing as claimed in claim 3, characterized in that: The driving assembly (9) includes a rotating rod (91) rotatably arranged on the inner wall of the cleaning box (1), and one end of the rotating rod (91) is fixedly provided with a cam (92) abutting against the filter water net (4), and the rotating rod (91) is connected with the bidirectional screw rod (74) through a linkage assembly (12).

5. A pellet mill cleaning device for use in plastic processing as claimed in claim 4, characterized in that: The elastic assembly (10) includes a connecting rod (101) hingedly arranged at the bottom end of the filter water net (4), and the bottom end of the connecting rod (101) is hingedly connected with a second sliding block (102), and the inner wall of the cleaning box (1) is provided with a second sliding groove (103) for sliding the second sliding block (102), and the second sliding groove (103) is fixedly connected with the second sliding block (102) through a spring (104).

6. A pellet mill cleaning device for use in plastic processing as claimed in claim 5, characterized in that: The linkage assembly (12) includes a first pulley (121) sleeved on the outer wall of the bidirectional screw rod (74), and the outer wall of the rotating rod (91) is sleeved with a second pulley (122), and the first pulley (121) is drivingly connected with the second pulley (122) through a belt (123).

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