A double-screw plastic extruder with good heating effect

Abstract

The utility model relates to extruder technical field, concretely to a kind of double-screw plastic extruder of good heating effect, including extruder and two extrusion screws, the lower portion of extruder is provided with heating water tank, and circulation mechanism is provided in heating water tank, the inside of two extrusion screws is all provided with water inlet hole and drain hole, and one end of water inlet hole and drain hole is interconnected, and the rotating sleeve of two extrusion screws is provided with water tank for filling.The utility model, by setting heating water tank, circulation mechanism, water inlet hole and drain hole etc. are used in cooperation, when using, the heating mechanism outside extruder is heated simultaneously, by circulation mechanism, hot water is delivered into water inlet hole, the hot water in water inlet hole is heated for extrusion screw, then water is excluded from drain hole, so when the device is used, it can be heated simultaneously inside and outside, otherwise, heating is fast, and heating is uniform.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, specifically to a twin-screw plastic extruder with good heating effect. Background Technology

[0002] A twin-screw plastic extruder is a continuously operating plasticizing and conveying equipment. Its core feature is that the barrel contains two screws. Under the synergistic action of the two screws, the material undergoes processes such as solid conveying, melting and plasticizing, mixing and homogenizing, degassing and devolatilization, and pressure building and extrusion. Finally, it is shaped into the desired product or provides a uniformly plasticized melt for subsequent processes through a specific die.

[0003] To melt the material, heating equipment is installed on the outer wall of the extruder, which melts the material during the conveying process. However, this outside-in heating is not only slow, but also lacks uniformity. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a twin-screw plastic extruder with good heating effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a twin-screw plastic extruder with good heating effect, comprising an extruder and two extrusion screws, a heating water tank is provided below the extruder, and a circulation mechanism is provided inside the heating water tank, both extrusion screws are provided with water inlet holes and drain holes, and one end of the water inlet hole and the drain hole are connected to each other, a water filling tank is sleeved on the rotating part of the two extrusion screws, and one side wall of the water filling tank is connected to the circulation mechanism, the water inlet hole is connected to the water filling tank, and a drive mechanism is sleeved on the outer wall of the extrusion screws.

[0006] Preferably, the heated water tank includes a tank body, and an electric heater is fixedly connected to the inner wall of the tank body.

[0007] Preferably, the circulation mechanism includes a water pump installed in the heating water tank, and the output end of the water pump is fixedly connected to a rigid pipe, one end of which is connected to the water filling tank.

[0008] Preferably, the driving mechanism includes gears respectively fixedly sleeved on the outer walls of two extrusion screws, the two gears meshing with each other, a worm gear fixedly sleeved on the outer wall of one of the extrusion screws, and a worm meshing on one side of the worm gear, a motor fixedly connected to the outer wall of the extruder, and the driving end of the motor fixedly connected to the worm.

[0009] Preferably, the outer walls of the two extrusion screws are fitted with outer covers, and one end of the outer cover is connected to the heating water tank.

[0010] Preferably, a strip groove is provided on one side wall of the box, and a transparent glass is fixedly connected to the inner wall of the strip groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes a heating water tank, a circulation mechanism, an inlet, and a drain. During use, the heating mechanism outside the extruder heats the material while the circulation mechanism delivers hot water to the inlet. The hot water entering the inlet heats the extrusion screw, and then the water is discharged through the drain. This allows for simultaneous heating from both inside and outside, resulting in rapid and uniform heating. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial top-section structural diagram of the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 This is a partial side sectional view of the present invention.

[0013] In the diagram: 1. Extruder; 2. Extrusion screw; 3. Heating water tank; 4. Water inlet; 5. Drain; 6. Water filling tank; 7. Water pump; 8. Rigid pipe; 9. Gear; 10. Worm gear; 11. Worm; 12. Motor; 13. Outer cover; 14. Transparent glass; 301. Housing; 302. Electric heater. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Please see Figures 1-4 A twin-screw plastic extruder with good heating effect includes an extruder 1 and two extrusion screws 2. A heating water tank 3 is provided below the extruder 1, and a circulation mechanism is provided inside the heating water tank 3. Each of the two extrusion screws 2 has a water inlet 4 and a drain 5, and one end of the water inlet 4 and the drain 5 are connected to each other. A water filling tank 6 is sleeved on the rotating part of the two extrusion screws 2, and one side wall of the water filling tank 6 is connected to the circulation mechanism. The water inlet 4 is connected to the water filling tank 6. A drive mechanism is sleeved on the outer wall of the extrusion screws 2.

[0016] As can be seen from the above structure, by setting up a heating water tank 3, a circulation mechanism, a water inlet 4 and a drain 5 in combination, when in use, the heating mechanism outside the extruder 1 heats the extruder while the circulation mechanism delivers hot water to the water inlet 4. The hot water entering the water inlet 4 heats the extrusion screw 2, and then the water is discharged from the drain 5. In this way, when the device is in use, heating can be carried out both inside and outside at the same time, so the heating is fast and uniform.

[0017] Furthermore, the heating water tank 3 includes a tank body 301, and an electric heater 302 is fixedly connected to the inner wall of the tank body 301; by setting the tank body 301 and the electric heater 302 to work together, hot water can be provided.

[0018] Furthermore, the circulation mechanism includes a water pump 7 installed in the heating water tank 3, and the output end of the water pump 7 is fixedly connected to a rigid pipe 8, one end of which is connected to the water filling tank 6. By setting the water pump 7 and the rigid pipe 8 to work together, water can be injected into the water filling tank 6, and the water entering the water filling tank 6 can enter the extrusion screw 2 through the water inlet hole 4.

[0019] Furthermore, the driving mechanism includes gears 9 fixedly sleeved on the outer walls of the two extrusion screws 2, the two gears 9 meshing with each other, a worm gear 10 fixedly sleeved on the outer wall of one of the extrusion screws 2, and a worm 11 meshing on one side of the worm gear 10, a motor 12 fixedly connected to the outer wall of the extruder 1, and the driving end of the motor 12 fixedly connected to the worm 11; by setting the various gears 9, worm gear 10 and worm 11 to work together, the extrusion screws 2 can be driven to rotate, thereby enabling the extrusion screws 2 to extrude objects. In use, the motor 12 is started, causing the motor 12 to drive the worm 11 to rotate, the rotating worm 11 drives the worm gear 10 to rotate, the rotating worm gear 10 drives one of the extrusion screws 2 to rotate, and the rotating extrusion screw 2 drives the other extrusion screw 2 to rotate through the gears 9.

[0020] Furthermore, an outer cover 13 is fitted on the outer wall of the two extrusion screws 2, and one end of the outer cover 13 is connected to the heating water tank 3; by setting the outer cover 13, water can be prevented from being thrown to the outside when the extrusion screws 2 rotate.

[0021] Furthermore, a strip-shaped groove is provided on one side wall of the tank 301, and a transparent glass 14 is fixedly connected to the inner wall of the strip-shaped groove; by providing the transparent glass 14, the amount of water inside the tank 301 can be observed.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A twin-screw plastic extruder with good heating effect, comprising an extruder (1) and two extrusion screws (2), characterized in that, A heating water tank (3) is provided below the extruder (1), and a circulation mechanism is provided inside the heating water tank (3). The two extrusion screws (2) are provided with water inlet holes (4) and drain holes (5), and one end of the water inlet hole (4) and the drain hole (5) are connected to each other. The two extrusion screws (2) are fitted with a water filling tank (6), and one side wall of the water filling tank (6) is connected to the circulation mechanism. The water inlet hole (4) is connected to the water filling tank (6). A driving mechanism is fitted on the outer wall of the extrusion screw (2).

2. The twin-screw plastic extruder with good heating effect according to claim 1, characterized in that, The heating water tank (3) includes a tank body (301), and an electric heater (302) is fixedly connected to the inner wall of the tank body (301).

3. The twin-screw plastic extruder with good heating effect according to claim 1, characterized in that, The circulation mechanism includes a water pump (7) installed in the heating water tank (3), and the output end of the water pump (7) is fixedly connected to a rigid pipe (8), one end of which is connected to the water filling tank (6).

4. The twin-screw plastic extruder with good heating effect according to claim 1, characterized in that, The driving mechanism includes gears (9) fixedly sleeved on the outer walls of two extrusion screws (2), the two gears (9) meshing with each other, a worm gear (10) fixedly sleeved on the outer wall of one of the extrusion screws (2), and a worm (11) meshing on one side of the worm gear (10), a motor (12) fixedly connected to the outer wall of the extruder (1), and the driving end of the motor (12) fixedly connected to the worm (11).

5. A twin-screw plastic extruder with good heating effect according to claim 1, characterized in that, The outer walls of the two extrusion screws (2) are fitted with outer covers (13), and one end of the outer cover (13) is connected to the heating water tank (3).

6. A twin-screw plastic extruder with good heating effect according to claim 2, characterized in that, A strip groove is provided on one side wall of the box (301), and a transparent glass (14) is fixedly connected to the inner wall of the strip groove.

Images