1. The high-efficiency screw extruder is characterized by comprising a machine barrel, wherein a screw is installed in the machine barrel, a driving motor is installed at one end of the machine barrel, an extrusion head is arranged at the other end of the machine barrel and drives the screw to rotate, a discharge elbow is connected to the extrusion head through a flange, a first feeding bin and a second feeding bin are arranged at the top of the machine barrel, the second feeding bin is connected with the machine barrel, a first rotating shaft is arranged in the first feeding bin and driven to rotate by a first motor, stirring teeth are arranged on the first rotating shaft, the bottom of the first feeding bin is connected with the second feeding bin through a connecting pipe, a second rotating shaft is arranged in the second feeding bin and driven to rotate by a second motor, a spiral conveying belt is arranged on the second rotating shaft, the axis of the first rotating shaft is perpendicular to the axis of the second rotating shaft, the barrel top still is equipped with the gas vent, gas vent department is connected with first blast pipe, the sight glass is installed at first blast pipe's top, one side of first blast pipe is connected with the second blast pipe, the second blast pipe links to each other with air exhauster and gas purification device in proper order.

2. A high-efficiency screw extruder according to claim 1, wherein a jacket is arranged on the outer wall of the discharge elbow, a cooling water cavity is formed between the jacket and the discharge elbow, and the jacket is provided with a water inlet pipe and a water outlet pipe communicated with the cooling water cavity.

3. A high efficiency screw extruder as claimed in claim 1, wherein said second feed bin is provided with a first heating means at its outer wall and a second heating means at its outer wall at the middle of said barrel.

4. A high efficiency screw extruder as claimed in claim 1, wherein said vent is provided with a screen.

5. A high efficiency screw extruder as claimed in claim 1, wherein the bottom of said first feeding bin is provided with a material guiding plate.

6. A high efficiency screw extruder as claimed in claim 1, wherein the bottom of said barrel is provided with support legs.

7. A high efficiency screw extruder as claimed in claim 6, wherein said support legs are provided with damping springs.

Background

The extruder is widely applied to the production process of products such as plastics, rubber and the like, and the plastic extruder can be matched with various plastic forming auxiliary equipment such as pipes, films, pelleting and plates to form various plastic extrusion forming production lines. The plastic granules are heated and fused in the machine barrel of the extruder, the heated plastic granules are in a gluing state and then extruded into the die for cooling and forming, but the materials are extremely easy to stack and block before entering the extruder, and even the whole equipment can be blocked, so that the production efficiency can be influenced. In addition, toxic volatile gases are generated during the extrusion process of the extruder, which may pollute the environment and may affect the quality of the finished product if the gases are not discharged smoothly. Therefore, there is a high-efficiency screw extruder which can solve the existing problems.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a high-efficiency screw extruder, the material of the device is not easy to block before entering the barrel of the extruder, and the device is favorable for improving the production efficiency.

The invention provides the following technical scheme:

a high-efficiency screw extruder comprises a machine barrel, wherein a screw is installed in the machine barrel, a driving motor is installed at one end of the machine barrel, an extrusion head is arranged at the other end of the machine barrel, the driving motor drives the screw to rotate, the extrusion head is connected with a discharge elbow through a flange, a first feeding bin and a second feeding bin are arranged at the top of the machine barrel, the second feeding bin is connected with the machine barrel, a first rotating shaft is arranged in the first feeding bin and rotates through driving of a first motor, stirring teeth are arranged on the first rotating shaft, the bottom of the first feeding bin is connected with the second feeding bin through a connecting pipe, a second rotating shaft is arranged in the second feeding bin and rotates through driving of a second motor, a spiral conveying belt is arranged on the second rotating shaft, and the axis of the first rotating shaft is vertical to the axis of the second rotating shaft, the barrel top still is equipped with the gas vent, gas vent department is connected with first blast pipe, the sight glass is installed at first blast pipe's top, one side of first blast pipe is connected with the second blast pipe, the second blast pipe links to each other with air exhauster and gas purification device in proper order.

Preferably, a jacket is arranged on the outer wall of the discharge elbow, a cooling water cavity is formed between the jacket and the discharge elbow, and a water inlet pipe and a water outlet pipe which are communicated with the cooling water cavity are arranged on the jacket.

Preferably, a first heating device is arranged on the outer wall of the second feeding bin, and a second heating device is arranged on the outer wall of the middle part of the machine barrel.

Preferably, a filter screen is arranged at the air outlet.

Preferably, the bottom of the first feeding bin is provided with a material guide plate.

Preferably, the bottom of the machine barrel is provided with a supporting leg.

Preferably, the supporting legs are provided with damping springs.

The invention has the beneficial effects that:

the plastic product feeding device is provided with a first feeding bin and a second feeding bin, a first rotating shaft is arranged in the first feeding bin, stirring teeth are arranged on the first rotating shaft, the material is crushed and stirred, then the material falls into the second feeding bin, a spiral conveying belt in the second feeding bin is arranged to help the material to be conveyed into a machine barrel smoothly, the phenomenon that the material is stacked and blocked in the first feeding bin and the second feeding bin is prevented, the production efficiency of a plastic product is ensured, a first heating device is arranged on the second feeding bin to heat the material, the flowability of the material entering the machine barrel is improved, the extrusion is facilitated, and the temperature rise time of the material in the machine barrel is reduced; the gas purifier is also provided with an exhaust port, the exhaust port is connected with a first exhaust pipe, the top of the first exhaust pipe is provided with an observation mirror, the condition is convenient to observe, one side of the first exhaust pipe is connected with a second exhaust pipe, and the second exhaust pipe is sequentially connected with an exhaust fan and a gas purifying device, so that toxic volatile gas can be extracted and purified by the gas purifying device; the extrusion head is also provided with the discharge bent pipe which is convenient for discharging and receiving materials, and the discharge bent pipe is provided with the cooling water cavity which can play a role in primarily cooling the extruded materials; the supporting legs of the machine barrel are also provided with the damping springs, so that the damping effect can be achieved, and the normal operation of the device is protected.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a first feed bin and a second feed bin of the present invention;

fig. 3 is a schematic structural view of the discharge elbow of the present invention.

Labeled as: 1. a barrel; 2. a screw; 3. a drive motor; 4. an extrusion head; 5. a flange; 6. discharging bent pipes; 7. a first feeding bin; 8. a second feeding bin; 9. a first rotating shaft; 10. a first motor; 11. stirring teeth; 12. a connecting pipe; 13. a second rotating shaft; 14. a second motor; 15. a spiral conveyor belt; 16. an exhaust port; 17. a first exhaust pipe; 18. an observation mirror; 19. a second exhaust pipe; 20. an exhaust fan; 21. a gas purification device; 22. a jacket; 23. a cooling water cavity; 24. a water inlet pipe; 25. a water outlet pipe; 26. a first heating device; 27. a second heating device; 28. filtering with a screen; 29. supporting legs; 30. a damping spring; 31. a material guide plate.

Detailed Description

As shown in figures 1 and 2, the high-efficiency screw extruder comprises a machine barrel 1, wherein a supporting leg 29 is arranged at the bottom of the machine barrel 1, a damping spring 30 is arranged on the supporting leg 29, and a second heating device 27 is arranged on the outer wall of the middle part of the machine barrel 1. Install screw rod 2 in barrel 1, driving motor 3 is installed to the one end of barrel 1, and the other end of barrel 1 is equipped with extrudes head 4, and driving motor 3 drive screw rod 2 rotates, extrudes head 4 department and is connected with ejection of compact return bend 6 through flange 5, and the outer wall department of ejection of compact return bend 6 is equipped with jacket 22, forms cooling water chamber 23 between jacket 22 and the ejection of compact return bend 6, is equipped with the communicating inlet tube 24 and the outlet pipe 25 with cooling water chamber 23 on jacket 22.

The top of the machine barrel 1 is provided with a first feeding bin 7 and a second feeding bin 8, the second feeding bin 8 is connected with the machine barrel 1, the outer wall of the second feeding bin 8 is provided with a first heating device 26, the bottom of the first feeding bin 7 is provided with a material guide plate 31, a first rotating shaft 9 is arranged in the first feeding bin 7, the first rotating shaft 9 is driven to rotate by a first motor 10, the first rotating shaft 9 is provided with stirring teeth 11, the bottom of the first feeding bin 7 is connected with the second feeding bin 8 by a connecting pipe 12, a second rotating shaft 13 is arranged in the second feeding bin 8, the second rotating shaft 13 is driven to rotate by a second motor 14, the second rotating shaft 13 is provided with a spiral conveyer belt 15, the axis of the first rotating shaft 9 is vertical to the axis of the second rotating shaft 13, the top of the machine barrel 1 is also provided with an exhaust port 16, the exhaust port 16 is provided with a filter screen 28, the exhaust port 16 is connected with a first exhaust pipe 17, the top of the first exhaust pipe 17 is provided with an observation mirror 18, one side of the first exhaust pipe 17 is connected with a second exhaust pipe 19, and the second exhaust pipe 19 is connected with an exhaust fan 20 and a gas purification device 21 in sequence.

The plastic product feeding device is provided with a first feeding bin 7 and a second feeding bin 8, a first rotating shaft 9 is arranged in the first feeding bin 7, stirring teeth 11 are arranged on the first rotating shaft 9, the material is crushed and stirred, then falls into the second feeding bin 8, a spiral conveyer belt 15 in the second feeding bin 8 is used for smoothly conveying the material into the machine barrel 1, the phenomenon that the material is stacked and blocked in the first feeding bin 7 and the second feeding bin 8 is prevented, the production efficiency of a plastic product is guaranteed, a first heating device 26 is arranged on the second feeding bin 8 and is used for heating the material, the flowability of the material entering the machine barrel 1 is improved, the extrusion is convenient, and the temperature rise time of the material in the machine barrel 1 is reduced; the gas purifier is characterized by further comprising an exhaust port 16, a first exhaust pipe 17 is connected to the exhaust port 16, an observation mirror 18 is mounted at the top of the first exhaust pipe 17, the condition is convenient to observe, a second exhaust pipe 19 is connected to one side of the first exhaust pipe 17, and the second exhaust pipe 19 is sequentially connected with an exhaust fan 20 and a gas purification device 21, so that toxic volatile gas can be extracted and purified through the gas purification device 21; the extrusion head 4 of the embodiment is also provided with a discharge elbow 6 which is convenient for discharging and receiving materials, and the discharge elbow 6 is provided with a cooling water cavity 23 which can perform a primary cooling effect on the extruded materials; the supporting legs 29 of the machine barrel 1 of the embodiment are also provided with damping springs 30 which can play a role in damping and protect the normal operation of the device.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.