Extrusion mechanism for plastic granulation

Abstract

The utility model provides an extrusion mechanism for plastic granulation, which relates to the technical field of plastic granulation and comprises a charging barrel, a motor arranged at one end of the charging barrel, a connecting shaft seat arranged at the bottom of the motor, a gear arranged at the tail end of the motor, a feeding hopper arranged on one side of the top of the charging barrel, supporting legs arranged on one side of the bottom of the charging barrel and a discharging barrel arranged at the other end of the charging barrel. A cold air conveying box is arranged on one side of the bottom of the discharging barrel, a cooling discharging box is arranged at the bottom of the cold air conveying box, a screw is arranged in the charging barrel, spiral blades are arranged on the outer side of the screw, a filter screen is arranged at a port of the other end of the charging barrel, and a perforated plate is arranged at the outer end of the filter screen. And the working efficiency and the production quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic granulation technology, and in particular to an extrusion mechanism for plastic granulation. Background Technology

[0002] According to the extrusion mechanism of a plastic pellet mill disclosed in Chinese Patent No. CN107186914A, it includes an electric cylinder, a moving blade, a fixed blade, a motor, a connecting shaft, a filter screen, a feeding box, a pressure reducing plate, a spring, and an extrusion box. The motor is installed on the upper side of the feeding box, and a connecting shaft is installed at the lower end of the motor. A fixed blade is installed at the outer end of the connecting shaft. An electric cylinder is installed inside the fixed blade, and a moving blade is installed at the outer end of the electric cylinder. A filter screen is installed on the lower side of the connecting shaft.

[0003] The aforementioned prior art and the prior art have the following technical problems: the existing plastic pelleting process is not efficient, is not suitable for large-scale production, and the product quality is unstable, contains impurities, and consumes too much energy and equipment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an extrusion mechanism for plastic pelletizing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an extrusion mechanism for plastic granulation, comprising a barrel, a motor at one end of the barrel, a coupling seat at the bottom of the motor, a gear at the end of the motor, a feed hopper at the top side of the barrel, a support leg at the bottom side of the barrel, a discharge barrel at the other end of the barrel, a cold air conveying box at the bottom side of the discharge barrel, a cooling discharge box at the bottom of the cold air conveying box, a screw inside the barrel, spiral blades on the outside of the screw, a filter screen at the other end of the barrel, and a perforated plate at the outer end of the filter screen.

[0006] Preferably, the inner wall of the material cylinder is provided with a protective wall, and the inner wall of the protective wall is provided with an anti-sticking membrane.

[0007] Preferably, both the end of the motor and the end of the coupling seat are provided with gears, and the gear at the end of the motor and the gear at the end of the coupling seat are engaged.

[0008] Preferably, an air inlet is provided on one side of the feeding cylinder, and one side of the air inlet is connected to the cold air conveying box.

[0009] Preferably, the cooling discharge box has an electrically controlled door on one side, a cooling chamber inside the cooling discharge box, and a conveyor belt at the bottom of the cooling chamber.

[0010] Preferably, the screw extends through the barrel to the motor and the coupling seat, and the barrel is equipped with a double screw.

[0011] Preferably, the perforated plate is connected to the filter screen by screws, the perforated plate is connected to the port of the feed cylinder by threads, and the perforated plate is connected to the feed cylinder.

[0012] Beneficial effects

[0013] This invention employs a multi-functional integrated structure that combines multiple production processes, including extrusion, granulation, cooling, and discharge, thereby achieving fully automated plastic granulation production. This reduces material handling and manual operation during the production process, improving production efficiency and quality.

[0014] This invention employs a twin-screw extruder and a single motor. The twin-screw extruder is connected by gears, and the single motor drives the gears to rotate while simultaneously rotating the twin-screw extruder. The twin-screw extruder provides better mixing and plasticizing effects, resulting in higher production efficiency. Achieving the twin-screw extruder with a single motor not only improves production efficiency but also saves on machinery and energy consumption.

[0015] In this invention, a cooling discharge box and a cold air conveying box are used. The cold air conveying box supplies cold air to the air inlet, which initially cools the plastic granules extruded in the feeding cylinder, improving their hardness and stability. The granules then enter the cooling chamber in the cooling discharge box for further cooling treatment, so that they are cooled and shaped before being discharged by the conveyor belt. This ensures the stable discharge of plastic granules and avoids deformation of the produced granules. Attached Figure Description

[0016] Figure 1 This is an isometric view of the present invention;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is the left view of the present invention;

[0019] Figure 4 This is a cross-sectional view of the present invention;

[0020] Figure 5 This is an isometric view of the internal structure of the material cylinder of this utility model.

[0021] Legend:

[0022] 1. Material cylinder; 101. Protective wall; 2. Motor; 3. Coupling seat; 4. Gear; 5. Feed hopper; 6. Support leg; 7. Discharge cylinder; 701. Air inlet; 8. Cold air conveying box; 9. Cooling discharge box; 901. Electrically controlled door; 902. Cooling chamber; 903. Conveyor belt; 10. Screw; 11. Spiral blade; 12. Filter screen; 13. Perforated plate. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0026] Reference Figure 1-5 This utility model provides an extrusion mechanism for plastic granulation, including a barrel 1. The inner wall of the barrel 1 has a protective wall 101 with an anti-sticking film. A motor 2 is located at one end of the barrel 1. A coupling seat 3 is located at the bottom of the motor 2. A gear 4 is located at the end of the motor 2. Gears 4 are also located at the ends of both the motor 2 and the coupling seat 3. The gear 4 at the end of the motor 2 engages with the gear 4 at the end of the coupling seat 3. A feed hopper 5 is located on one side of the top of the barrel 1, and a support leg 6 is located on one side of the bottom of the barrel 1. A discharge barrel 7 is located at the other end of the barrel 1. A cold air conveying box 8 is located on one side of the bottom of the discharge barrel 7. An air inlet 701 is located on one side of the discharge barrel 7, and one side of the air inlet 701 is connected to the cold air conveying box 8. A cooling discharge box 9 is located at the bottom of the cold air conveying box 8. An electrically controlled door 901 is located on one side of the cooling discharge box 9. The interior of the cooling discharge box 9... The device includes a cooling chamber 902, with a conveyor belt 903 at its bottom. A screw 10 is located inside the barrel 1, extending from the barrel 1 to the motor 2 and the coupling seat 3. The barrel 1 also contains twin screws 10, with spiral blades 11 on the outer side of each screw. A filter screen 12 is located at the other end of the barrel 1, with a perforated plate 13 at its outer end. The perforated plate 13 is connected to the filter screen 12 by screws, preventing impurities from entering the discharge cylinder 7. The perforated plate 13 is connected to the port of the barrel 1 by threads, and the perforated plate 13 communicates with the discharge cylinder 7. This multi-functional integrated structure combines extrusion, granulation, cooling, and discharge processes, achieving fully automated plastic granulation production. This reduces material handling and manual operation during production, improving production efficiency and quality. Specific Implementation Example 2:

[0028] Reference Figure 4 A heating element is installed inside the barrel 1 to gradually melt and plasticize the plastic inside, and an insulation wall is installed on the inner wall of the barrel 1 to prevent heat loss.

[0029] In summary:

[0030] 1. The integrated structure enables the combined use of multiple functions, improving work efficiency and production quality;

[0031] 2. By using a twin-screw screw 10 and a single motor 2, the single motor 2 drives the twin-screw screw 10 through the gear 4, which not only improves production efficiency but also saves energy;

[0032] 3. The use of a cooling discharge box 9 and a cold air conveying box 8 enables the cooling treatment of the produced plastic granules, preventing deformation of the granules and improving their hardness and stability.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An extrusion mechanism for plastic granulation, comprising a barrel (1), characterized in that: One end of the material cylinder (1) is provided with a motor (2), the bottom of the motor (2) is provided with a coupling seat (3), the end of the motor (2) is provided with a gear (4), the top side of the material cylinder (1) is provided with a feed hopper (5), the bottom side of the material cylinder (1) is provided with a support leg (6), the other end of the material cylinder (1) is provided with a discharge cylinder (7), the bottom side of the discharge cylinder (7) is provided with a cold air conveying box (8), the bottom of the cold air conveying box (8) is provided with a cooling discharge box (9), the inside of the material cylinder (1) is provided with a screw (10), the outside of the screw (10) is provided with a spiral blade (11), the other end of the material cylinder (1) is provided with a filter screen (12), the outer end of the filter screen (12) is provided with a perforated plate (13).

2. The extrusion mechanism for plastic granulation according to claim 1, characterized in that: The inner wall of the material cylinder (1) is provided with a protective wall (101), and the inner wall of the protective wall (101) is provided with an anti-sticking film.

3. The extrusion mechanism for plastic granulation according to claim 1, characterized in that: The motor (2) and the coupling seat (3) are both provided with gears (4), and the gears (4) at the end of the motor (2) and the coupling seat (3) are engaged with each other.

4. The extrusion mechanism for plastic granulation according to claim 1, characterized in that: The feeding cylinder (7) has an air inlet (701) on one side, and one side of the air inlet (701) is connected to the cold air conveying box (8).

5. The extrusion mechanism for plastic granulation according to claim 1, characterized in that: The cooling discharge box (9) is provided with an electrically controlled door (901) on one side, and a cooling chamber (902) is provided inside the cooling discharge box (9). A conveyor belt (903) is provided at the bottom of the cooling chamber (902).

6. The extrusion mechanism for plastic granulation according to claim 1, characterized in that: The screw (10) passes through the barrel (1) to the motor (2) and the coupling seat (3), and the barrel (1) is provided with a double screw (10).

7. The extrusion mechanism for plastic granulation according to claim 1, characterized in that: The perforated plate (13) is connected to the filter screen (12) by screws, the perforated plate (13) is connected to the port of the material cylinder (1) by threads, and the perforated plate (13) is connected to the feed cylinder (7).

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