Waste plastic sorting device

Abstract

The utility model discloses a waste plastic sorting device, and belongs to the field of plastic sorting. A waste plastic sorting device comprises a workbench, a water tank is fixed to the upper end of the workbench, a mounting frame is fixed to the upper end of the water tank and provided with a connecting plate capable of ascending and descending, a rotating shaft capable of rotating is arranged below the connecting plate, and a supporting disc is coaxially fixed to the lower end of the rotating shaft and matched with an inner cavity of the water tank; the lower end of the baffle makes contact with the upper end face of the supporting disc. A mounting plate is fixed on the rotating shaft, a pressure plate capable of ascending and descending is arranged below the mounting plate, the pressure plate can be matched with the inner cavity of the water tank, and a plurality of through holes are formed in the pressure plate, so that plastic floating on the water surface is pressed into water, is in full contact with the water and is fully cleaned under the pushing of a baffle plate.

Description

Technical Field

[0001] The utility model belongs to the field of plastic sorting, and particularly relates to a waste plastic sorting device. Background Art

[0002] Waste plastics primarily come from household garbage, industrial waste, agricultural waste, and other sources. With the improvement of living standards and the acceleration of industrialization, the amount of waste plastics continues to increase. Because plastic production consumes non-renewable resources such as petroleum, recycling waste plastics is essential to reduce resource waste. Sorting and recycling waste plastics reduces the demand for new plastic raw materials, conserving non-renewable resources like petroleum. Furthermore, recycling waste plastics for re-production consumes less energy than producing plastics from new raw materials.

[0003] In the waste plastic sorting process, after the plastic is picked out from the waste, impurities such as mud and sand will inevitably adhere to its surface, requiring further cleaning and sorting to meet the plastic recycling standards; however, the density of some plastics, such as polyethylene and polypropylene, is lower than that of water. During the cleaning and sorting process, the plastic is difficult to be completely immersed in water for cleaning. For this reason, a waste plastic sorting device is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a waste plastic sorting device that solves the problems in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A waste plastic sorting device includes a workbench, a water tank is fixed to the upper end of the workbench, a mounting frame is fixed to the upper end of the water tank, the mounting frame is provided with a lifting connecting plate, a rotating shaft is provided below the connecting plate, a support plate is coaxially fixed to the lower end of the rotating shaft, and the support plate is matched with the inner cavity of the water tank; a baffle is fixed to the rotating shaft, and the lower end of the baffle is in contact with the upper end surface of the support plate;

[0007] A mounting plate is fixed on the rotating shaft, and a lifting pressure plate is provided under the mounting plate. The pressure plate can cooperate with the inner cavity of the water tank, and a plurality of through holes are provided on the pressure plate, so as to press the plastic floating on the water surface into the water, fully contact with the water, and be fully cleaned under the push of the baffle.

[0008] Furthermore, a plurality of through holes are provided on the support plate.

[0009] Furthermore, a plurality of through holes are provided on the baffle.

[0010] Furthermore, a first cylinder is provided on the mounting frame to directly drive the connection plate to rise and fall; a driving motor is fixed on the connection plate, and a driving shaft of the driving motor is coaxially fixed with the rotating shaft.

[0011] Furthermore, a second cylinder is fixed to the lower end of the mounting plate, and the second cylinder can drive the pressure plate to rise and fall.

[0012] Furthermore, a sleeve is provided in the middle position of the baffle, the sleeve is sleeved on the rotating shaft and cooperates with the rotating shaft, a threaded hole is provided on the sleeve, and a bolt is installed in the threaded hole, and the end of the bolt can be tightly pressed against the rotating shaft.

[0013] Furthermore, a scraper assembly is respectively provided on both sides of the box body, and the scraper assembly includes a sliding plate that can slide, and a scraper is provided on the upper end of the sliding plate. When the support plate rises to the highest point, the scraper can contact the upper end surface of the support plate, and the two scrapers can be located on both sides of the baffle.

[0014] Furthermore, the sliding plate is slidably connected to the workbench, and the scraper assembly also includes two fixed plates fixed to the upper end of the workbench. A screw is rotatably connected between the two fixed plates, and the screw passes through the sliding plate and is threadedly connected thereto.

[0015] Furthermore, the thread lead angle of the screw rod is smaller than the equivalent friction angle.

[0016] Furthermore, a drain pipe is provided at the lower end of the water tank, and a valve for controlling the switch is provided on the drain pipe.

[0017] Beneficial effects of the utility model:

[0018] 1. A rotating lifting assembly is set on the box body, and a support plate that can be lifted and rotated is set in the rotating lifting assembly to support the plastic, and the plastic is brought into the water. A push plate is set on the rotating shaft to push the plastic to move in the water, accelerating the loosening of mud and sand to complete the cleaning.

[0019] 2. By setting a pressure plate assembly on the rotating shaft, the plastic floating on the water surface is pressed into the water, fully contacted with the water, and fully cleaned under the push of the baffle.

[0020] 3. A scraper assembly is provided on each side of the box to scrape away the sediment and impurities accumulated on the upper end surface of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of the sorting device of the present utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the rotating lifting assembly of the utility model;

[0024] Figure 3 This is a schematic diagram of the baffle structure of the utility model;

[0025] Figure 4 This is a schematic structural diagram of the pressure plate assembly of the utility model;

[0026] Figure 5 It is a schematic structural diagram of the scraper assembly of the utility model. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1 As shown, a waste plastic sorting device includes a workbench 1, a water tank 2 is fixed on the upper end of the workbench 1, and the water tank 2 is filled with water. The plastics after preliminary sorting are placed in the water tank 2 for further cleaning and sorting to remove impurities such as mud and sand adhering to the surface; a drain pipe 6 is provided at the lower end of the water tank 2, and a valve is provided on the drain pipe 6 to control the conduction and closing of the drain pipe 6, so that the sewage in the water tank 2 can be discharged.

[0029] The water tank 2 is provided with a rotating lifting assembly 3, which includes a mounting frame 31 fixed to the upper end of the water tank 2, a connecting plate 33 that can be lifted and lowered is provided on the mounting frame 31, a driving motor 34 is fixed to the lower end of the connecting plate 33, a rotating shaft 35 is coaxially fixed to the driving shaft of the driving motor 34, and a supporting plate 36 is coaxially fixed to the lower end of the rotating shaft 35, and the supporting plate 36 can cooperate with the inner cavity of the water tank 2 (in this embodiment, the outer diameter of the supporting plate 36 is gap-matched with the inner diameter of the inner cavity of the water tank 2); when in use, plastic is placed on the supporting plate 36, and the supporting plate 36 is driven to descend into the interior of the box body 2, so that the plastic comes into contact with water, which is convenient for surface cleaning; and after cleaning is completed, the supporting plate 36 is controlled to rise, so that the plastic can be pushed out for easy removal.

[0030] In addition, a baffle 37 is fixed on the rotating shaft 35, and the lower end of the baffle 37 contacts the upper end surface of the support plate 36. When the rotating shaft 35 rotates, the baffle 37 rotates and can push the plastic to move in the water, so that the surface of the plastic can fully contact the water and accelerate the loosening and separation of mud and sand on the plastic.

[0031] In this embodiment, a plurality of through holes are provided on the support plate 36, so that when the support plate 36 enters the box body, water can quickly enter the top of the support plate 36 through the through holes to come into contact with the plastic; and a plurality of through holes are also provided on the baffle 37, so that the resistance of the baffle 37 to the water is reduced when the baffle 37 rotates in the box body 2.

[0032] In addition, in this embodiment, a first cylinder 32 is provided on the mounting frame 31 to directly drive the connection plate 33 to rise and fall, thereby enabling the support plate 36 to enter and exit the water tank 2; of course, the method of driving the connection plate 33 to rise and fall includes but is not limited to the first cylinder 32 in this embodiment. In other embodiments, the connection plate 33 can also be driven to rise and fall by providing a linear driving component such as a hydraulic cylinder telescopic rod on the mounting frame 31.

[0033] like Figure 3 As shown, in this embodiment, a sleeve 371 is provided in the middle position of the baffle 37, and the sleeve 371 is sleeved on the rotating shaft 35 and cooperates with the rotating shaft 35. By opening a threaded hole on the sleeve 371 and screwing a bolt into the threaded hole, the end of the bolt is pressed against the rotating shaft 35, so that the baffle 37 and the sleeve 371 can be detachably fixedly connected; in other embodiments, the sleeve 371 and the rotating shaft 35 can also be fixed by welding.

[0034] A pressure plate assembly 47 is mounted on the rotating shaft 35. The pressure plate assembly 47 can press the plastic floating on the water surface into the water to fully contact with the water;

[0035] like Figure 4 As shown, the pressure plate assembly 4 includes a mounting plate 41 fixed on the rotating shaft 35, and a second cylinder 42 is provided at the lower end of the mounting plate 41. A pressure plate 43 is fixed on the driving shaft of the second cylinder 42. The pressure plate 43 is provided with a plurality of through holes and can cooperate with the inner cavity of the water tank 2 (in this embodiment, the outer diameter of the pressure plate 43 is sufficiently matched with the inner diameter of the inner cavity of the water tank 2). Driven by the cylinder 42, the pressure plate 43 can descend to contact with the baffle 37, and can press all the plastic into the water, fully contact with the water, and be fully cleaned under the push of the baffle 37.

[0036] During the plastic cleaning process, a large amount of impurities and sand will fall on the upper end of the support plate 36, which needs to be cleaned regularly. To this end, in this embodiment, two scraper assemblies 5 are provided on the upper end of the workbench 1 to scrape off the dirt and impurities on the upper end of the support plate 36;

[0037] like Figure 5 As shown, the scraper assembly 5 includes a sliding plate 51 that can slide, and a scraper 52 is provided on the upper end of the sliding plate 51. When the support plate 36 rises to the highest point, the scraper 52 can contact the upper end surface of the support plate 36, thereby scraping away the soil and impurities on the upper end of the support plate 36;

[0038] Furthermore, when performing soil scraping operations, the baffle 37 can be controlled to rotate between the two scrapers 52 ( Figure 1 The position shown in the figure) ensures that the two scrapers 52 do not collide or interfere with the baffle 37 when sliding; in addition, the drive motor 34 has a self-locking property, such as a conical rotor motor, so that the baffle 37 can remain stable after the rotation direction is adjusted.

[0039] In this embodiment, the sliding plate 51 is slidably connected to the workbench 1, and the scraper assembly 5 further includes two fixed plates 53 fixed to the upper end of the workbench 1. A screw rod 54 is rotatably connected between the two fixed plates 53. The screw rod 54 passes through the sliding plate 51 and is threadedly connected thereto. A motor is provided on one of the fixed plates 53 to drive the screw rod 54 to rotate, thereby driving the scraper 52 to move.

[0040] Furthermore, in order to ensure that the scraper 52 remains stable after position adjustment, the screw rod 54 needs to be self-locking, that is, the thread lead angle of the screw rod 54 is smaller than the equivalent friction angle.

[0041] In other embodiments, a linear driving component such as a cylinder or a telescopic rod may be provided on the upper end of the workbench 1 to directly drive the sliding plate 51 to slide, thereby driving the scraper 52 to move.

[0042] Working principle:

[0043] By installing a rotating lifting assembly 3 on the housing 2, a lifting and rotating support plate 36 is installed within the rotating lifting assembly 3 to support the plastic and carry it into the water. A push plate 37 is installed on the rotating shaft 35 to push the plastic in the water, accelerating the loosening of mud and sand to complete the cleaning. A pressure plate assembly 4 is installed on the rotating shaft 35 to press the plastic floating on the water surface into the water, where it fully contacts the water and is thoroughly cleaned by the push of the baffle 37. A scraper assembly 5 is installed on each side of the housing 2 to scrape away mud and sand impurities accumulated on the upper end surface of the support plate 36.

[0044] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A waste plastic sorting device, comprising a workbench (1), a water tank (2) fixed on the upper end of the workbench (1), characterized in that: A mounting frame (31) is fixed to the upper end of the water tank (2), and the mounting frame (31) is provided with a lifting connecting plate (33). A rotating shaft (35) is provided below the connecting plate (33). A supporting plate (36) is coaxially fixed to the lower end of the rotating shaft (35), and the supporting plate (36) is matched with the inner cavity of the water tank (2); a baffle (37) is fixed on the rotating shaft (35), and the lower end of the baffle (37) is in contact with the upper end surface of the supporting plate (36); A mounting plate (41) is fixed on the rotating shaft (35), and a lifting and lowering pressure plate (43) is provided below the mounting plate (41). The pressure plate (43) can cooperate with the inner cavity of the water tank (2), and a plurality of through holes are provided on the pressure plate (43).

2. A waste plastic sorting device according to claim 1, characterized in that: The support plate (36) is provided with a plurality of through holes.

3. The waste plastic sorting device according to claim 1, characterized in that: The baffle (37) is provided with a plurality of through holes.

4. The waste plastic sorting device according to claim 1, characterized in that: A first cylinder (32) is provided on the mounting frame (31) to directly drive the connecting plate (33) to rise and fall; a driving motor (34) is fixed on the connecting plate (33), and a driving shaft of the driving motor (34) is coaxially fixed with a rotating shaft (35).

5. The waste plastic sorting device according to claim 1, characterized in that: A second cylinder (42) is fixed to the lower end of the mounting plate (41), and the second cylinder (42) can drive the pressure plate (43) to rise and fall.

6. The waste plastic sorting device according to claim 1, characterized in that: A sleeve (371) is provided in the middle of the baffle (37). The sleeve (371) is sleeved on the rotating shaft (35) and cooperates with the rotating shaft (35). A threaded hole is provided on the sleeve (371), and a bolt is installed in the threaded hole. The end of the bolt can be tightly pressed against the rotating shaft (35).

7. The waste plastic sorting device according to claim 1, characterized in that: A scraper assembly (5) is provided on each side of the water tank (2), the scraper assembly (5) comprising a sliding plate (51) capable of sliding, a scraper (52) being provided on the upper end of the sliding plate (51), and when the support plate (36) rises to the highest point, the scraper (52) can contact the upper end surface of the support plate (36), and the two scrapers (52) can be located on both sides of the baffle (37).

8. The waste plastic sorting device according to claim 7, characterized in that: The sliding plate (51) is slidably connected to the workbench (1). The scraper assembly (5) further comprises two fixed plates (53) fixed to the upper end of the workbench (1). A screw rod (54) is rotatably connected between the two fixed plates (53). The screw rod (54) passes through the sliding plate (51) and is threadedly connected thereto.

9. The waste plastic sorting device according to claim 8, characterized in that: The thread lead angle of the screw rod (54) is smaller than the equivalent friction angle.

10. The waste plastic sorting device according to claim 1, characterized in that: A drain pipe (6) is provided at the lower end of the water tank (2), and a valve for controlling the opening and closing is provided on the drain pipe (6).

Images