Screw extruder with high reliability

Abstract

The utility model relates to the technical field of plastic processing, in particular to a high-reliability screw extruder which comprises a hopper, an extruder body, a cooling tank and an oil injection nozzle, the hopper is fixed to the extruder body, a discharging end is arranged on the extruder body, the cooling tank is fixed to the discharging end of the extruder body, and the oil injection nozzle is arranged at the discharging end of the extruder body. The oil injection nozzle is mounted on the cooling tank and is used for injecting softening oil into the cooling tank. The screw extruder has the beneficial effect that the productivity of the screw extruder is improved.

Description

Technical Field

[0001] The present application relates to the technical field of plastic processing, and in particular to a screw extruder with high reliability. Background Art

[0002] The processing of plastic pellets involves melting and filtering the plastic, extruding it into strands, and then cooling and solidifying it before pelletizing. Screw extruders are usually used for processing and production.

[0003] Common screw extruders usually include a hopper and an extruder body, and the hopper is fixed on the extruder body. During processing, the raw materials are poured into the hopper, and the raw materials enter the extruder body through the hopper to be melted. The extruder body extrude strands, and the extruded strands are solidified after being cooled by circulating water, and then cut into pellets by a pelletizer to form plastic pellets.

[0004] The above-mentioned prior art solutions have the following defects: the strands extruded by the screw extruder have low fluidity, high power consumption and low production capacity, so there is still room for improvement. Utility Model Content

[0005] In order to improve the production capacity of a screw extruder, the present application provides a screw extruder with high reliability.

[0006] The present application provides a highly reliable screw extruder adopting the following technical solution:

[0007] A screw extruder with high reliability comprises a hopper, an extruder body, a cooling trough and an oiling nozzle, wherein the hopper is fixed on the extruder body, a discharge end is arranged on the extruder body, the cooling trough is fixed on the discharge end of the extruder body, the oiling nozzle is installed on the cooling trough, and the oiling nozzle is used to inject softened oil into the cooling trough.

[0008] By adopting the above technical solution, softened oil is added to the cooling tank through the oil injection nozzle, so that the fluidity of the product is better, energy consumption is reduced, and output is increased. The fluidity of the product produced by the secondary oil injection is good, which is convenient for subsequent vulcanization processing.

[0009] Preferably, the oil filling nozzle is connected to an external oil barrel via an oil filling pipeline, and a liquid metering pump is fixed on the oil filling pipeline.

[0010] By adopting the above technical solution and setting a liquid metering pump, the oil intake can be controlled, thereby better ensuring the amount of softening oil.

[0011] Preferably, the cooling tank comprises a plurality of cooling parts, the plurality of cooling parts are detachably connected, and the plurality of cooling parts are arranged in a line.

[0012] By adopting the above technical solution, several cooling parts can be detachably connected and arranged in a line to form a cooling groove, so that operators can disassemble the cooling groove for easy maintenance and cleaning.

[0013] Preferably, the cooling portion is provided with an opening, and the oil injection nozzle injects softened oil into the cooling groove through the opening.

[0014] By adopting the above technical solution, an opening is provided on the cooling part, which makes it easier for the oil filling nozzle to fill oil and also makes it easier for operators to observe the internal conditions of the cooling tank.

[0015] Preferably, an exhaust gas suction hood is fixed on the cooling trough, and the exhaust gas suction hood is located above the opening.

[0016] By adopting the above technical solution and setting up an exhaust gas suction hood, the exhaust gas generated by the drawing strips in the cooling tank can be recovered, thereby improving the air quality in the workshop.

[0017] Preferably, the oil injection pipeline is configured as a hose.

[0018] By adopting the above technical solution, the oil injection pipeline is set as a hose, which is convenient for operators to adjust the position of the external oil barrel and the oil injection pipeline.

[0019] Preferably, a universal bamboo tube is fixed between the exhaust gas suction hood and the cooling trough.

[0020] By adopting the above technical solution, the exhaust gas suction hood is connected to the mounting frame through a universally adjustable bamboo tube, so that the alignment angle of the exhaust gas suction hood can be adjusted according to needs to better recover the exhaust gas.

[0021] Preferably, a handle is fixed on the cooling part.

[0022] By adopting the above technical solution, the setting of the handle makes it convenient for subsequent operators to maintain and clean the cooling tank.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: adding softened oil to the cooling tank through the oil injection nozzle makes the product have better fluidity, reduces energy consumption, and increases output; and the secondary oil injection produces good fluidity, which facilitates subsequent vulcanization processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a screw extruder with high reliability according to an embodiment of the present application.

[0025] Explanation of the reference numerals: 1. hopper; 2. extruder body; 3. cooling trough; 4. oiling nozzle; 5. oiling pipe; 6. external oil barrel; 7. liquid metering pump; 8. cooling part; 9. opening; 10. mounting frame; 11. universal bamboo tube; 12. exhaust gas suction hood; 13. handle. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 This application is described in further detail.

[0027] The present application embodiment discloses a screw extruder with high reliability. Figure 1 A screw extruder with high reliability includes a hopper 1, an extruder body 2, a cooling trough 3 and an oiling nozzle 4. The hopper 1 is fixed on the extruder body 2. The hopper 1 is arranged vertically. Solid materials are poured into the hopper 1 and enter the extruder body 2. The extruder body 2 is provided with a discharge end. The materials are heated by the extruder body 2 and then extruded from the discharge end to form a strand. The cooling trough 3 is fixed at the discharge end of the extruder body 2. The cooling trough 3 is arranged in a rectangular parallelepiped shape. The cooling trough 3 has a long length, so that it can play a certain cooling role on the strand. The cooling trough 3 is filled with circulating water, and the extruded strand enters the cooling trough 3 and is cooled by the circulating water. The oiling nozzle 4 is installed on the cooling trough 3, and the oiling nozzle 4 is used to inject softened oil into the cooling trough 3. Softened oil is added to the cooling trough 3 through the oiling nozzle 4, so that the strand produced has better fluidity, reduces energy consumption, and increases production. The strand produced by secondary oiling has good fluidity and is convenient for subsequent vulcanization processing.

[0028] Furthermore, the oil injection nozzle 4 is connected to the external oil barrel 6 through the oil injection pipe 5, and the oil injection pipe 5 is set as a hose. When the operator needs to adjust the position of the external oil barrel 6, the oil injection pipe 5 also needs to change with the change of the position of the oil barrel. The oil injection pipe 5 is set as a hose, and the position of the oil barrel and the oil injection pipe 5 can be flexibly adjusted. A liquid metering pump 7 is fixed on the oil injection pipe 5. By setting the liquid metering pump 7, the oil intake can be controlled, and the amount of softening oil is better guaranteed, so that the pull rod has better fluidity and is not easy to cause excessive use of softening oil.

[0029] Furthermore, the cooling trough 3 includes a plurality of cooling parts 8, and the plurality of cooling parts 8 are detachably connected, and the plurality of cooling parts 8 are arranged in a line. In the present embodiment, six cooling parts 8 are provided, and an opening 9 is provided on the fourth cooling part 8 away from the hopper 1, and the oiling nozzle 4 injects the softened oil into the cooling trough 3 through the opening 9. A mounting frame 10 is fixed on the cooling trough 3, and a universal bamboo tube 11 is fixed on the mounting frame 10, and an exhaust gas suction hood 12 is fixed on the other end of the universal bamboo tube 11, and the exhaust gas suction hood 12 is fixedly connected to the mounting frame 10 through the universal bamboo tube 11. The exhaust gas suction hood 12 is located above the opening 9 of the cooling trough 3. The size of the hood body of the exhaust gas suction hood 12 is larger than the size of the opening 9, and the opening 9 of the exhaust gas suction hood 12 is arranged in a trumpet shape, so that the exhaust gas can be absorbed more comprehensively. The exhaust gas suction hood 12 is connected to the mounting frame 10 through a universally adjustable universal bamboo tube 11, so that the alignment angle of the exhaust gas suction hood 12 can be adjusted according to needs to better recover the exhaust gas.

[0030] In addition, a handle 13 is fixed on the cooling unit 8. When the operator disassembles the cooling tank 3 for maintenance and cleaning, the setting of the handle 13 facilitates the operator to apply force, which is conducive to moving the cooling unit 8. The operator can remove the cooling unit 8 by lifting the handle 13 to maintain and clean the cooling unit 8.

[0031] The implementation principle of a screw extruder with high reliability in the embodiment of the present application is:

[0032] Solid materials are poured into the hopper 1 and enter the extruder body 2. After the materials are heated by the extruder body 2, they are extruded from the discharge end and formed into strips. The extruded strips enter the cooling tank 3 and are cooled by circulating water. The softened oil is quantitatively controlled by the liquid metering pump 7 and injected into the cooling tank 3 from the oil injection nozzle 4 through the oil injection pipe 5, so that the produced strips have better fluidity, reduce energy consumption, and increase production. The strips produced by the secondary oil injection have good fluidity and are convenient for subsequent vulcanization processing. The operator adjusts the universal bamboo tube 11 so that the alignment angle between the exhaust gas suction hood 12 and the opening 9 is appropriate, so as to better recover the exhaust gas and improve the air quality in the workshop.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A screw extruder with high reliability, characterized in that: The invention comprises a hopper (1), an extruder body (2), a cooling trough (3) and an oiling nozzle (4), wherein the hopper (1) is fixed on the extruder body (2), a discharge end is arranged on the extruder body (2), the cooling trough (3) is fixed on the discharge end of the extruder body (2), the oiling nozzle (4) is installed on the cooling trough (3), and the oiling nozzle (4) is used to inject softened oil into the cooling trough (3).

2. A screw extruder with high reliability according to claim 1, characterized in that: The oil injection nozzle (4) is connected to an external oil barrel (6) via an oil injection pipeline (5), and a liquid metering pump (7) is fixed on the oil injection pipeline (5).

3. A screw extruder with high reliability according to claim 1, characterized in that: The cooling trough (3) comprises a plurality of cooling parts (8), the plurality of cooling parts (8) are detachably connected, and the plurality of cooling parts (8) are arranged in a line.

4. A screw extruder with high reliability according to claim 3, characterized in that: The cooling portion (8) is provided with an opening (9), and the oil injection nozzle (4) injects softened oil into the cooling groove (3) through the opening (9).

5. A screw extruder with high reliability according to claim 4, characterized in that: An exhaust gas suction hood (12) is fixed on the cooling trough (3), and the exhaust gas suction hood (12) is located above the opening (9).

6. A screw extruder with high reliability according to claim 2, characterized in that: The oil injection pipeline (5) is configured as a hose.

7. A screw extruder with high reliability according to claim 5, characterized in that: A universal bamboo tube (11) is fixed between the exhaust gas suction hood (12) and the cooling trough (3).

8. A screw extruder with high reliability according to claim 3, characterized in that: A handle (13) is fixed on the cooling portion (8).

Images