Granulator with automatic screening function

Abstract

The utility model discloses a pelletizer with an automatic screening function, which relates to the technical field of plastic production and comprises a stirring box, a blanking hopper is fixedly mounted on the lower side of the stirring box, a material extruding component for extruding materials is fixedly mounted on the lower side of the blanking hopper, a screening box is fixedly mounted on the lower side of the material extruding component, and the screening box is fixedly mounted on the lower side of the blanking hopper. According to the plastic melting device, crushed plastic raw materials are crushed through the crusher and conveyed into the stirring box, then heating is conducted through the heating pipe arranged in the stirring box, the stirring motor is started, an output shaft of the stirring motor drives the main stirring rod to rotate, the stirring motor drives the main stirring rod to rotate, and therefore the plastic raw materials can be melted. The main stirring rod drives the main gear to rotate, the main gear drives the auxiliary gear to rotate, the auxiliary gear drives the auxiliary stirring rod to rotate, plastic raw materials are heated and stirred, the plastic raw materials are fully heated and converted into a molten state, follow-up machining is facilitated, and the finished product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic production, in particular to a granulator with an automatic screening function. Background Art

[0002] During the production process of plastics, in order to facilitate their transportation, they are generally made into granules, and a granulator is required for the production of plastic granules.

[0003] In the prior art, publication number CN218948142U discloses a granulator with an automatic screening function, which includes a granulator main body, and also includes: a crushing mechanism and a screening mechanism, the top of the granulator main body is fixedly connected to the bottom end of the crushing mechanism, and the bottom end of the screening mechanism is fixedly connected to the top of the granulator main body; the utility model drives the transmission rod to rotate by a first motor, so that the spiral blade stirs the plastic raw material and moves to the right, and at the same time, the spiral blade heats the plastic raw material to melt it, and the rotation of the spiral blade squeezes the molten plastic raw material and the extrusion plate against each other, so that the molten plastic is discharged through the mesh on the extrusion plate, and at the same time, the cooling water inlet pipe is connected to the cooling water to cool the extrusion plate, so that the plastic raw material flowing through the extrusion plate is quickly cooled and solidified, and the transmission rod drives the blade to rotate to cut the plastic flowing out of the extrusion plate into plastic particles of suitable size, keeping the blade clean, which is conducive to improving the quality and production efficiency of the plastic particles.

[0004] However, the device still has some problems. The spiral blades are used to stir the plastic raw material to move to the right, and at the same time, the spiral blades heat the plastic raw material to melt it. The molten plastic is discharged through the mesh holes on the extrusion plate. At the same time, the cooling water inlet pipe is connected to the cooling water to cool the extrusion plate. In actual use, the spiral blades are used to stir and heat the plastic. During the heating process, the plastic cannot be stirred, resulting in uneven heating, which will cause the plastic to fail to completely form a molten state. As a result, when the plastic that has not completely formed a molten state is cut during subsequent granulation, plastic waste will be generated, affecting the quality of the granule products. Therefore, we disclose a granulator with automatic screening function to meet people's needs. Utility Model Content

[0005] The purpose of the present application is to provide a granulator with an automatic screening function to solve the problem that the plastic production technology proposed in the above background technology is stirred and heated by spiral blades. During the heating process, the plastic cannot be stirred, resulting in uneven heating, which will cause the plastic to fail to completely form a molten state. As a result, during the subsequent granulation, plastic that has not completely formed a molten state will produce plastic waste when cut, affecting the quality of the granules.

[0006] To achieve the above objectives, the present application provides the following technical solution: a granulator with an automatic screening function, comprising a mixing box, a lower hopper fixedly mounted on the lower side of the mixing box, an extrusion assembly for extruding material fixedly mounted on the lower side of the lower hopper, a screening box fixedly mounted on the lower side of the extrusion assembly, and a melting assembly for melting plastic fixedly mounted in the mixing box;

[0007] The melting assembly includes several heating tubes, and several of the heating tubes are fixedly installed on the inner wall of the stirring box. A driving hole is opened on one side of the stirring box, and a main stirring rod is rotatably installed in the driving hole. A transmission hole is opened on one side of the stirring box, and a secondary stirring rod is rotatably installed in the transmission hole. A main gear is fixedly installed on one end of the main stirring rod, and a secondary gear is fixedly installed on one end of the secondary stirring rod, and the main gear is meshed with the secondary gear.

[0008] Preferably, a stirring motor is fixedly mounted on one side of the stirring box, and an output shaft of the stirring motor is coaxially fixedly connected to one end of a main stirring rod.

[0009] Preferably, the extrusion assembly includes an extrusion tube, a discharge port is provided on the upper side of the extrusion tube, the bottom end of the discharge hopper is installed in the discharge port, a sliding port is provided on one side of the discharge port, a partition is slidably installed in the sliding port, a rotating hole is provided on one side of the extrusion tube, an auger rod is fixedly installed in the rotating hole, and an extrusion unit for facilitating extrusion is fixedly installed on one side of the extrusion tube.

[0010] Preferably, the extrusion unit includes a water cooling component, which is fixedly installed on one side of the extrusion tube. An extrusion disk is fixedly installed on the inner wall of the water cooling component, and an avoidance hole is opened on the surface of the extrusion disk. A blade is fixedly installed on one end of the auger rod through the avoidance hole, and a feeding motor is fixedly installed on one end of the extrusion tube. The output shaft of the feeding motor is coaxially fixedly connected to one end of the auger rod.

[0011] Preferably, a feed port is provided on the upper side of the screening box, a guide plate is fixedly installed on the inner wall of the screening box, two air inlets are provided on one side of the screening box, cooling fans are fixedly installed in the two air inlets, and two sliding openings are provided on both sides of the screening box, and a screening assembly is slidably installed in the sliding openings.

[0012] Preferably, the screening assembly includes several sliders, and the sliders are correspondingly slidably installed in the sliding openings. The screening box is slidably installed with a screen plate through the sliders. Discharge ports are opened on both sides of the screening box, and a waste plate is slidably installed in one of the discharge ports.

[0013] Preferably, springs are fixedly installed on the upper and lower sides of several of the sliders, the other end of the spring is fixedly installed on the inner wall of the slide, a mounting hole is opened on one side of the screening box, a rotating rod is rotatably installed in the mounting hole, and a knocking block is fixedly installed on one end of the rotating rod; a screening motor is fixedly installed on one side of the screening box, and the output shaft of the screening motor is coaxially fixedly connected to one end of the rotating rod.

[0014] Preferably, a crusher is fixedly installed on the upper side of the mixing box;

[0015] In summary, the technical effects and advantages of the utility model are:

[0016] 1. In the utility model, the pulverized plastic raw material is pulverized by a pulverizer and transported to a mixing box, and then heated by a heating tube arranged in the mixing box. By starting the mixing motor, the output shaft of the mixing motor drives the main stirring rod to rotate, the main stirring rod drives the main gear to rotate, the main gear drives the sub-gear to rotate, and the sub-gear drives the sub-stirring rod to rotate, thereby heating and stirring the plastic raw material so that it is fully heated and converted into a molten state, which is convenient for subsequent processing and improves the quality of the finished product.

[0017] 2. In the utility model, the granulated plastic is guided to fall by the guide plate, and then the granular plastic is cooled for a second time by starting the cooling fan to prevent the surface from sticking to the sieve plate due to incomplete cooling. Then, the screening motor is started, and the output shaft of the screening motor drives the rotating rod to rotate, and the rotating rod drives the knocking block to rotate, and the knocking block knocks the sieve plate and vibrates under the joint action of the slider and the spring, thereby improving the screening efficiency of the granular plastic and increasing the processing rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application 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, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the mixing box in the present utility model;

[0021] Figure 3 It is a cross-sectional view of the extruded tube in the present utility model;

[0022] Figure 4 It is a cross-sectional view of the screening box in the present invention.

[0023] In the figure: 1. Mixing box; 2. Crusher; 3. Heating tube; 4. Main stirring rod; 5. Main gear; 6. Auxiliary stirring rod; 7. Auxiliary gear; 8. Mixing motor; 9. Lower hopper; 10. Partition; 11. Extrusion tube; 12. Auger rod; 13. Extrusion plate; 14. Blade; 15. Water cooling assembly; 16. Feeding motor; 17. Screening box; 18. Guide plate; 19. Cooling fan; 20. Screen plate; 21. Slider; 22. Spring; 23. Rotating rod; 24. Knocking block; 25. Waste plate; 26. Screening motor. DETAILED DESCRIPTION

[0024] The following will be combined with the 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.

[0025] See also Figures 1-4 , Example 1 provided by the present utility model

[0026] A granulator with automatic screening function, comprising a mixing box 1, a lower hopper 9 is fixedly mounted on the lower side of the mixing box 1, an extrusion assembly for extruding materials is fixedly mounted on the lower side of the lower hopper 9, a screening box 17 is fixedly mounted on the lower side of the extrusion assembly, and a melting assembly for melting plastic is fixedly mounted in the mixing box 1;

[0027] The melting assembly includes several heating tubes 3, which are fixedly installed on the inner wall of the stirring box 1. A driving hole is provided on one side of the stirring box 1, and a main stirring rod 4 is rotatably installed in the driving hole. A transmission hole is provided on one side of the stirring box 1, and a secondary stirring rod 6 is rotatably installed in the transmission hole. A main gear 5 is fixedly installed at one end of the main stirring rod 4, and a secondary gear 7 is fixedly installed at one end of the secondary stirring rod 6. The main gear 5 is meshed with the secondary gear 7. Multiple heating tubes 3 are installed vertically to the main stirring rod 4 to facilitate sufficient heating of the plastic.

[0028] like Figure 2 As shown, a stirring motor 8 is fixedly installed on one side of the stirring box 1, and the output shaft of the stirring motor 8 is coaxially fixedly connected to one end of the main stirring rod 4.

[0029] like Figure 2 As shown, a crusher 2 is fixedly installed on the upper side of the mixing box 1. The crusher 2 is a prior art and can crush the plastic raw materials to facilitate subsequent heating.

[0030] like Figure 3As shown, the extrusion assembly includes an extrusion tube 11, a discharge port is provided on the upper side of the extrusion tube 11, the bottom end of the discharge hopper 9 is installed in the discharge port, a sliding port is provided on one side of the discharge port, a partition 10 is slidably installed in the sliding port, a rotating hole is provided on one side of the extrusion tube 11, an auger rod 12 is fixedly installed in the rotating hole, an extrusion unit for facilitating extrusion is fixedly installed on one side of the extrusion tube 11, and the auger rod 12 can transport plastic in a molten state.

[0031] like Figure 3 As shown, the extrusion unit includes a water cooling component 15, which is fixedly installed on one side of the extrusion tube 11, and an extrusion disk 13 is fixedly installed on the inner wall of the water cooling component 15. The surface of the extrusion disk 13 is provided with an avoidance hole, and one end of the auger rod 12 is fixedly installed with a blade 14 through the avoidance hole, and one end of the extrusion tube 11 is fixedly installed with a feeding motor 16, and the output shaft of the feeding motor 16 is coaxially fixedly connected to one end of the auger rod 12. A plurality of extrusion holes are provided on the surface of the extrusion disk 13 for facilitating the extrusion of plastic, which will be cooled by the water cooling component 15 before extrusion. The water cooling component 15 is consistent with the technology used in the above-mentioned reference documents.

[0032] like Figure 4 As shown, a feed port is provided on the upper side of the screening box 17, a guide plate 18 is fixedly installed on the inner wall of the screening box 17, two air inlets are provided on one side of the screening box 17, cooling fans 19 are fixedly installed in the two air inlets, two sliding openings are provided on both sides of the screening box 17, screening components are slidably installed in the sliding openings, and the cooling fan 19 is installed on the opposite side of the guide plate 18 to blow air to cool the surface of the guide plate 18.

[0033] When in use, first, the plastic raw material is put into the crusher 2, and the crusher 2 drives the plastic raw material to be crushed. After crushing, it is transported to the mixing box 1, and then heated by the heating tube 3 provided in the mixing box 1, and the stirring motor 8 is started. The output shaft of the stirring motor 8 drives the main stirring rod 4 to rotate, the main stirring rod 4 drives the main gear 5 to rotate, the main gear 5 drives the sub-gear 7 to rotate, and the sub-gear 7 drives the sub-stirring rod 6 to rotate, so as to heat and stir the plastic raw material so that it is fully heated and converted into a molten state. The partition 10 is opened, and the molten plastic is put into the conveying pipe, and the feeding motor 16 drives the auger rod 12 to rotate to convey the molten plastic. It will be cooled by the water cooling component 15 before extrusion, and the plastic will be granulated by the cooperation of the extrusion disk 13 and the blade 14. After granulation, it enters the screening box 17 for secondary cooling to complete the granulation.

[0034] Example 2

[0035] like Figure 3As shown, the screening assembly includes several sliders 21, and the sliders 21 are correspondingly slidably installed in the sliding openings. The screening box 17 is slidably installed with a sieve plate 20 through the sliders 21. Discharge ports are opened on both sides of the screening box 17, and a waste plate 25 is slidably installed in one of the discharge ports. There are multiple sieve plates 20 on the surface.

[0036] like Figure 2 As shown, springs 22 are fixedly installed on the upper and lower sides of several sliders 21, and the other end of the spring 22 is fixedly installed on the inner wall of the slide. A mounting hole is opened on one side of the screening box 17, and a rotating rod 23 is rotatably installed in the mounting hole, and a knocking block 24 is fixedly installed on one end of the rotating rod 23; a screening motor 26 is fixedly installed on one side of the screening box 17, and the output shaft of the screening motor 26 is coaxially fixedly connected to one end of the rotating rod 23, so as to guide the granulated plastic to fall through the guide plate 18, and then the cooling fan 19 is started to perform secondary cooling of the granular plastic to prevent the surface from being completely cooled and sticking to the sieve plate 20. Then, by starting the screening motor 26, the output shaft of the screening motor 26 drives the rotating rod 23 to rotate, and the rotating rod 23 drives the knocking block 24 to rotate, and the knocking block 24 knocks the sieve plate 20 and vibrates under the joint action of the slider 21 and the spring 22, thereby improving the screening efficiency of the granular plastic and improving the processing rate.

[0037] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A granulator with automatic screening function, comprising a stirring box (1), characterized in that: A lower hopper (9) is fixedly mounted on the lower side of the mixing box (1), an extrusion assembly for extruding materials is fixedly mounted on the lower side of the lower hopper (9), a screening box (17) is fixedly mounted on the lower side of the extrusion assembly, and a melting assembly for melting plastics is fixedly mounted inside the mixing box (1); The melting assembly comprises a plurality of heating tubes (3), wherein the plurality of heating tubes (3) are fixedly mounted on the inner wall of a stirring box (1), a driving hole is provided on one side of the stirring box (1), a main stirring rod (4) is rotatably mounted in the driving hole, a transmission hole is provided on one side of the stirring box (1), a secondary stirring rod (6) is rotatably mounted in the transmission hole, a main gear (5) is fixedly mounted on one end of the main stirring rod (4), a secondary gear (7) is fixedly mounted on one end of the secondary stirring rod (6), and the main gear (5) is meshed with the secondary gear (7).

2. The granulator with automatic screening function according to claim 1, characterized in that: A stirring motor (8) is fixedly mounted on one side of the stirring box (1), and an output shaft of the stirring motor (8) is coaxially fixedly connected to one end of the main stirring rod (4).

3. The granulator with automatic screening function according to claim 1, characterized in that: The extrusion assembly comprises an extrusion tube (11), a discharge port is provided on the upper side of the extrusion tube (11), the bottom end of the discharge hopper (9) is installed in the discharge port, a sliding port is provided on one side of the discharge port, a partition (10) is slidably installed in the sliding port, a rotating hole is provided on one side of the extrusion tube (11), a auger rod (12) is fixedly installed in the rotating hole, and an extrusion unit for facilitating extrusion is fixedly installed on one side of the extrusion tube (11).

4. The granulator with automatic screening function according to claim 3, characterized in that: The extrusion unit includes a water cooling component (15), the water cooling component (15) is fixedly installed on one side of the extrusion tube (11), an extrusion disk (13) is fixedly installed on the inner wall of the water cooling component (15), a avoidance hole is opened on the surface of the extrusion disk (13), one end of the auger rod (12) is fixedly installed with a blade (14) passing through the avoidance hole, and one end of the extrusion tube (11) is fixedly installed with a feeding motor (16), and the output shaft of the feeding motor (16) is coaxially fixedly connected to one end of the auger rod (12).

5. The granulator with automatic screening function according to claim 1, characterized in that: A feed port is provided on the upper side of the screening box (17), a guide plate (18) is fixedly installed on the inner wall of the screening box (17), two air inlets are provided on one side of the screening box (17), cooling fans (19) are fixedly installed in the two air inlets, and two sliding openings are provided on both sides of the screening box (17), and screening components are slidably installed in the sliding openings.

6. The granulator with automatic screening function according to claim 5, characterized in that: The screening assembly comprises a plurality of sliders (21), each of the sliders (21) being slidably mounted in a corresponding sliding opening, the screening box (17) being slidably mounted with a sieve plate (20) via the sliders (21), and discharge ports being provided on both sides of the screening box (17), wherein a waste plate (25) is slidably mounted in one of the discharge ports.

7. The granulator with automatic screening function according to claim 6, characterized in that: A spring (22) is fixedly installed on both upper and lower sides of the plurality of sliders (21), and the other end of the spring (22) is fixedly installed on the inner wall of the sliding port. A mounting hole is opened on one side of the screening box (17), and a rotating rod (23) is rotatably installed in the mounting hole, and a knocking block (24) is fixedly installed on one end of the rotating rod (23); a screening motor (26) is fixedly installed on one side of the screening box (17), and the output shaft of the screening motor (26) is coaxially fixedly connected to one end of the rotating rod (23).

8. The granulator with automatic screening function according to claim 1, characterized in that: A pulverizer (2) is fixedly mounted on the upper side of the mixing box (1).

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