Plastic extruder heater

Abstract

The utility model discloses a plastic extruder heater which comprises a working table and a machine barrel, a motor is fixedly installed at one end of the upper surface of the working table, an outer heating assembly is fixedly installed on the outer surface of the machine barrel, and the lower surface of the outer heating assembly is fixedly connected with the upper surface of the working table. And one end of the machine barrel is rotationally connected with a heat conduction barrel in a penetrating manner. The air blower, the air heating box, the rotary joint, the heat conduction pipe, the air inlet pipe and the air outlet pipe are arranged, the air inlet pipe, the air outlet pipe and the heat conduction pipe are connected through the rotary joint, air is blown into the air heating box to be heated through the air blower, and after being heated, the air enters the heat conduction pipe from the rotary joint through the air inlet pipe and is exhausted through the air outlet pipe. The heat conduction pipe is heated through the heated gas, so that the interior of the extruder can be heated, incomplete melting caused by different internal and external temperatures is avoided, and the interior of the extruder is further prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a heater for a plastic extruder. Background Art

[0002] Plastic is a material that is particularly widely used in modern society. Its initial state is mostly fine plastic particles. In actual processing, different subsequent processes are required according to different usage requirements. The extruder is an essential equipment in the plastic processing process. Through external heating equipment and screw extrusion, the material in the extrusion equipment forms a flow state, and then the plastic particles are transformed into a qualified shape through the die head.

[0003] The existing extruder cannot be heated from the inside, which leads to different temperatures inside and outside the extruder, and the plastic cannot be completely melted, which easily causes blockage inside the machine. In addition, most of the existing plastic extruders are heated by heating plates, which will cause uneven heating of plastic particles and low heating efficiency. Therefore, the utility model proposes a plastic extruder heater. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a heater for a plastic extruder.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a workbench and a barrel, the outer surface of the barrel is fixedly installed with an external heating component, and the lower surface of the external heating component is fixedly connected to the upper surface of the workbench, one end of the barrel is penetrated and rotatably connected with a heat-conducting barrel, one end of the upper surface of the workbench is fixedly installed with a motor, one end of the heat-conducting barrel is fixedly installed with a transmission component matched with the motor, one end of the outer surface of the heat-conducting barrel is fixedly connected with an internal heating component, and the outer surface of the heat-conducting barrel is sleeved and fixedly installed with a spiral blade.

[0006] Furthermore, the external heating assembly includes a heat preservation shell fixedly mounted on the outer surface of the barrel, an oil pump is fixedly mounted on the upper surface of the heat preservation shell, an oil inlet of the oil pump is fixedly connected to a first oil pipe, an oil outlet of the oil pump is fixedly connected to an oil heater, and the lower surface of the oil heater is fixedly connected to the upper surface of the heat preservation shell, and an oil outlet of the oil heater is fixedly connected to a second oil pipe. The oil is pumped from one end of the heating pipe into the oil heater by the oil pump, thereby pushing the oil in the oil heater into the heating pipe.

[0007] Furthermore, the external heating assembly also includes a heating pipe fixedly mounted on the outer surface of the barrel, one end of the first oil pipe passes through the barrel and is fixedly connected to one end of the heating pipe, and one end of the second oil pipe passes through the barrel and is fixedly connected to the other end of the heating pipe. The oil in the heating pipe is continuously replaced through the first oil pipe and the second oil pipe, so that the barrel is always heated.

[0008] Furthermore, the transmission assembly includes a large pulley fixedly mounted on the output end of the motor and a small pulley sleeved and fixedly mounted on one end of the heat-conducting tube, and the outer surfaces of the large pulley and the small pulley are sleeved and connected with a belt. The large pulley drives the small pulley through the belt, thereby driving the heat-conducting tube to rotate through the motor.

[0009] Furthermore, the internal heating assembly includes a rotating joint fixedly connected to one end of the heat-conducting tube, a heat-conducting pipe is fixedly connected to one side of the outer surface of the rotating joint, an air supply pipe is fixedly connected to one side of the outer surface of the rotating joint, and an air outlet pipe is fixedly connected to the upper surface of the rotating joint. The air supply pipe and the air outlet pipe are connected to the heat-conducting pipe through the rotating joint, so as to exchange the air in the heat-conducting pipe.

[0010] Furthermore, the internal heating assembly also includes an air heating box fixedly connected to one end of the air supply pipe, the air inlet of the air heating box is fixedly connected to a blower, and the lower surfaces of the air heating box and the blower are fixedly connected to the upper surface of the workbench. The air is blown into the air heating box by the blower for heating, and after heating, the air is input into the heat conducting pipe through the rotating joint by the air supply pipe, thereby heating the heat conducting pipe.

[0011] Furthermore, a die head is fixedly mounted on one side of the outer surface of the barrel, and a feeding hopper is fixedly connected to one end of the upper surface of the barrel. Plastic is fed into the barrel through the feeding hopper, and the heated plastic is shaped by the die head.

[0012] Beneficial effects of the utility model:

[0013] 1. When the utility model is in use, a blower, an air heating box, a rotary joint, a heat conducting pipe, an air inlet pipe and an air outlet pipe are arranged. The air inlet pipe, the air outlet pipe and the heat conducting pipe are connected through the rotary joint, and the gas is blown into the air heating box for heating through the blower. After heating, the gas enters the heat conducting pipe through the rotary joint through the air inlet pipe and is discharged through the air outlet pipe. In this way, the heat conducting pipe is heated by the heated gas, so that the inside of the extruder can be heated, avoiding incomplete melting due to different internal and external temperatures, and further avoiding blockage inside the machine.

[0014] 2. When the utility model is in use, an oil pump, an oil heater, a heating pipe, a heat-insulating shell, a first oil pipe and a second oil pipe are arranged. The oil pump draws the oil in the heating pipe into the oil heater through the first oil pipe for heating. After the heating is completed, the oil is input into the heating pipe through the second oil pipe, so that the oil in the heating pipe is replaced, so that the heating pipe heats the barrel all the time, thereby avoiding uneven heating of the barrel and improving the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front cross-sectional view of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the internal heating component of the utility model;

[0017] Figure 3 For the utility model Figure 1 Enlarged view of point A in the middle.

[0018] Legend:

[0019] 1. Workbench; 2. Cylinder; 3. Insulation shell; 4. Oil pump; 5. Oil heater; 6. First oil pipe; 7. Second oil pipe; 8. Heating pipe; 9. Heat-conducting cylinder; 10. Spiral blade; 11. Heat-conducting pipe; 12. Motor; 13. Belt; 14. Large pulley; 15. Air heating box; 16. Blower; 17. Air supply pipe; 18. Air outlet pipe; 19. Rotary joint; 20. Feed hopper; 21. Die head; 22. Small pulley. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 3 As shown, it relates to a plastic extruder heater, including a workbench 1 and a barrel 2, characterized in that: an external heating component is fixedly installed on the outer surface of the barrel 2, and the lower surface of the external heating component is fixedly connected to the upper surface of the workbench 1, one end of the barrel 2 is penetrated and rotatably connected with a heat-conducting barrel 9, one end of the upper surface of the workbench 1 is fixedly installed with a motor 12, one end of the heat-conducting barrel 9 is fixedly installed with a transmission component matched with the motor 12, one end of the outer surface of the heat-conducting barrel 9 is fixedly connected with an internal heating component, the outer surface of the heat-conducting barrel 9 is sleeved and fixedly installed with a spiral blade 10, a die head 21 is fixedly installed on one side of the outer surface of the barrel 2, and one end of the upper surface of the barrel 2 is fixedly connected with a feeding hopper 20.

[0021] The external heating assembly includes a heat preservation shell 3 fixedly mounted on the outer surface of the barrel 2, an oil pump 4 fixedly mounted on the upper surface of the heat preservation shell 3, an oil inlet of the oil pump 4 fixedly connected to a first oil pipe 6, an oil outlet of the oil pump 4 fixedly connected to an oil heater 5, and the lower surface of the oil heater 5 is fixedly connected to the upper surface of the heat preservation shell 3, and the oil outlet of the oil heater 5 is fixedly connected to a second oil pipe 7. The external heating assembly also includes a heating pipe 8 fixedly mounted on the outer surface of the barrel 2, one end of the first oil pipe 6 passes through the barrel 2 and is fixedly connected to one end of the heating pipe 8, and one end of the second oil pipe 7 passes through the barrel 2 and is fixedly connected to the other end of the heating pipe 8. The oil pump 4 inputs the oil in the heating pipe 8 into the oil heater 5 through the first oil pipe 6 for heating, and after heating, inputs the oil into the heating pipe 8 through the second oil pipe 7, thereby replacing the oil in the heating pipe 8.

[0022] The transmission assembly includes a large pulley 14 fixedly mounted at the output end of the motor 12 and a small pulley 22 sleeved and fixedly mounted at one end of the heat-conducting tube 9. The outer surfaces of the large pulley 14 and the small pulley 22 are sleeved and connected with a belt 13. The motor 12 rotates the large pulley 14, so that the small pulley 22 can be driven by the belt 13, so that the heat-conducting tube 9 fixedly connected to the small pulley 22 can be rotated.

[0023] The internal heating assembly includes a rotary joint 19 fixedly connected to one end of the heat-conducting tube 9, a heat-conducting tube 11 is fixedly connected to one side of the outer surface of the rotary joint 19, an air supply tube 17 is fixedly connected to one side of the outer surface of the rotary joint 19, and an air outlet tube 18 is fixedly connected to the upper surface of the rotary joint 19. The internal heating assembly also includes an air heating box 15 fixedly connected to one end of the air supply tube 17, a blower 16 is fixedly connected to the air inlet of the air heating box 15, and the lower surfaces of the air heating box 15 and the blower 16 are fixedly connected to the upper surface of the workbench 1. The gas blown in by the blower 16 is heated by the air heating box 15, and then input into the air supply tube 17 and enter the heat-conducting tube 11 through the rotary joint 19, and then discharged from the air outlet tube 18 through the rotary joint 19, so that the heated gas heats the heat-conducting tube 9 through the heat-conducting tube 11.

[0024] When in use: pour plastic particles from the hopper 20 into the barrel 2, then the outer heating component heats the barrel 2, and the inner heating component heats the heat-conducting barrel 9, so that the plastic particles in the middle can be melted. When the outer heating component is in use, fill the inside of the heating tube 8 with oil, and then start the oil pump 4 to input the oil inside the heating tube 8 into the oil heater 5 through the first oil pipe 6 for heating. After heating, the oil is input into the heating tube 8 through the second oil pipe 7, so that the barrel 2 can be heated by the heating tube 8 in a reciprocating manner. When the inner heating component is in use, the air heating box 15 The gas blown in by the blower 16 is heated, and then input into the air supply pipe 17 and enters the heat conducting pipe 11 through the rotary joint 19. After entering, it is discharged from the air outlet pipe 18 through the rotary joint 19, so that the heated gas heats the heat conducting cylinder 9 through the heat conducting pipe 11, and then the motor 12 is started to rotate the large pulley 14, and then the small pulley 22 is driven by the belt 13, so that the heat conducting cylinder 9 fixedly connected to the small pulley 22 can be rotated, and then the heat conducting cylinder 9 rotates the spiral blade 10 to push the molten plastic particles to the die head 21 for extrusion.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic extruder heater, comprising a workbench (1) and a barrel (2), characterized in that: An external heating component is fixedly mounted on the outer surface of the barrel (2), and the lower surface of the external heating component is fixedly connected to the upper surface of the workbench (1); one end of the barrel (2) is rotatably connected to a heat-conducting barrel (9); one end of the upper surface of the workbench (1) is fixedly mounted with a motor (12); one end of the heat-conducting barrel (9) is fixedly mounted with a transmission component that matches the motor (12); one end of the outer surface of the heat-conducting barrel (9) is fixedly connected with an internal heating component; and the outer surface of the heat-conducting barrel (9) is sleeved with a spiral blade (10) that is fixedly mounted thereon.

2. A plastic extruder heater according to claim 1, characterized in that: The external heating component comprises a heat-insulating shell (3) which is fixedly mounted on the outer surface of the barrel (2); an oil pump (4) is fixedly mounted on the upper surface of the heat-insulating shell (3); an oil inlet of the oil pump (4) is fixedly connected to a first oil pipe (6); an oil outlet of the oil pump (4) is fixedly connected to an oil heater (5); and a lower surface of the oil heater (5) is fixedly connected to the upper surface of the heat-insulating shell (3); and an oil outlet of the oil heater (5) is fixedly connected to a second oil pipe (7).

3. A plastic extruder heater according to claim 2, characterized in that: The external heating assembly also includes a heating pipe (8) which is sleeved and fixedly mounted on the outer surface of the barrel (2); one end of the first oil pipe (6) passes through the barrel (2) and is fixedly connected to one end of the heating pipe (8); one end of the second oil pipe (7) passes through the barrel (2) and is fixedly connected to the other end of the heating pipe (8).

4. A plastic extruder heater according to claim 1, characterized in that: The transmission assembly comprises a large pulley (14) fixedly mounted on the output end of the motor (12) and a small pulley (22) sleeved and fixedly mounted on one end of the heat-conducting cylinder (9); the outer surfaces of the large pulley (14) and the small pulley (22) are sleeved and transmission-connected with a belt (13).

5. A plastic extruder heater according to claim 1, characterized in that: The internal heating component comprises a rotary joint (19) fixedly connected to one end of the heat-conducting tube (9), one side of the outer surface of the rotary joint (19) is fixedly connected to a heat-conducting tube (11), one side of the outer surface of the rotary joint (19) is fixedly connected to an air supply tube (17), and the upper surface of the rotary joint (19) is fixedly connected to an air outlet tube (18).

6. A plastic extruder heater according to claim 5, characterized in that: The internal heating component also includes an air heating box (15) fixedly connected to one end of the air supply pipe (17); an air inlet of the air heating box (15) is fixedly connected to a blower (16); and the lower surfaces of the air heating box (15) and the blower (16) are both fixedly connected to the upper surface of the workbench (1).

7. A plastic extruder heater according to claim 1, characterized in that: A die head (21) is fixedly mounted on one side of the outer surface of the barrel (2), and a feeding hopper (20) is fixedly connected to one end of the upper surface of the barrel (2).

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