Extruder electromagnetic heating coil winding ventilation and heat dissipation device

Abstract

The utility model relates to an electromagnetic heating coil winding ventilation and heat dissipation device for an extruder, which comprises an extruder cylinder, the outer side of the extruder cylinder is coated with heat preservation cotton, an electromagnetic heating coil is wound on the heat preservation cotton, a mounting ring is fixedly arranged on the extruder cylinder, a heat preservation shell is arranged on the outer side of the mounting ring, and a heat preservation cover is arranged on the outer side of the heat preservation shell. An air circulation layer is reserved between the heat preservation shell and the heat preservation cotton, the heat preservation shell comprises an upper shell body and a lower shell body, a plurality of air outlet holes are formed in the top of the upper shell body, air one-way valves are installed on the air outlet holes, an air inlet hole is formed in the bottom of the lower shell body, and a temperature controller is installed on the extruder barrel body. According to the utility model, the circulation of airflow is kept while the extruder is heated by winding the electromagnetic heating coil, so that the ventilation and heat dissipation of the electromagnetic heating coil are ensured; the heat preservation shell is hinged through a fixing device, and disassembly, inspection and maintenance are convenient; a temperature controller is arranged to control feeding and discharging of materials and prevent the device from being overheated.

Description

Technical Field

[0001] The utility model relates to the technical field of cable manufacturing equipment, in particular to an electromagnetic heating coil winding ventilation and heat dissipation device for an extruder. Background Technique

[0002] An extruder is a device used to heat, melt plastics, rubber or other materials and then form a specific shape through a die. It is widely used in fields such as plastic processing, rubber manufacturing and the food industry. The electromagnetic heating coil of an extruder is often used to heat and maintain the temperature of the extruder barrel, and its working principle is mainly based on electromagnetic induction heating. The existing electromagnetic heating devices for extruders generally lack ventilation and heat dissipation devices, and overheating of the device is likely to cause production risks. Content of the Utility Model

[0003] The utility model aims to solve the deficiencies of the prior art and provides an electromagnetic heating coil winding ventilation and heat dissipation device for an extruder.

[0004] To achieve the above object, the utility model adopts the following technical solutions: An electromagnetic heating coil winding ventilation and heat dissipation device for an extruder, including an extruder barrel, a heat preservation cotton is coated on the outer side of the extruder barrel, an electromagnetic heating coil is wound on the heat preservation cotton, an installation ring is fixedly arranged on the extruder barrel, a heat preservation shell is arranged on the outer side of the installation ring, a groove is opened on the installation ring, a flange is fixedly arranged on the inner side of the heat preservation shell, the flange is clamped in the groove, an air circulation layer is left between the heat preservation shell and the heat preservation cotton, the heat preservation shell includes an upper shell and a lower shell, a plurality of air outlet holes are opened on the top of the upper shell, a gas one-way valve is installed on the air outlet holes, an air inlet hole is opened on the bottom of the lower shell, and a temperature controller is installed on the extruder barrel.

[0005] Further, one side of the upper shell is provided with a first ear plate, the same side of the lower shell is provided with a second ear plate, a rotating shaft is fixedly penetrated in the second ear plate, and the rotating shaft passes through the first ear plate and is rotationally connected with the upper shell; L-shaped convex blocks are fixedly arranged on the other sides of the upper shell and the lower shell, a limiting block is clamped on the outer side of the L-shaped convex block, and a T-shaped groove is opened on the limiting block.

[0006] Further, an electromagnet is arranged on the inner side of the L-shaped convex block.

[0007] Further, corresponding bolt holes are opened on the L-shaped convex block and the limiting block, and a fixing bolt is rotationally connected in the bolt holes.

[0008] Further, a sealing ring is arranged between the upper shell and the lower shell.

[0009] The beneficial effects of the present utility model are as follows: The present utility model realizes heating the extruder by winding an electromagnetic heating coil while maintaining the flow of air, ensuring the ventilation and heat dissipation of the electromagnetic heating coil; the heat preservation housing is hinged through a fixing device, facilitating disassembly, inspection, and maintenance; a temperature controller is provided to control the inlet and outlet of materials and prevent the device from overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a structural sectional view of the present utility model;

[0011] Figure 2 is a side sectional view of the present utility model;

[0012] Figure 3 is a top view of the present utility model;

[0013] Figure 4 is a side sectional view of the L-shaped convex block and the limit block;

[0014] In the figure: 1 - extruder barrel; 2 - heat insulation cotton; 3 - electromagnetic heating coil; 4 - mounting ring; 5 - heat preservation housing; 6 - air circulation layer; 7 - upper housing; 8 - lower housing; 9 - air outlet; 10 - gas check valve; 11 - air inlet; 12 - temperature controller; 13 - first ear plate; 14 - second ear plate; 15 - rotating shaft; 16 - L-shaped convex block; 17 - limit block; 18 - electromagnet; 19 - fixing bolt; 20 - sealing ring;

[0015] The drawings in the present utility model are all schematic diagrams, and their sizes do not represent actual dimensions;

[0016] The following will be described in detail with reference to the embodiments of the present utility model and the accompanying drawings. SPECIFIC EMBODIMENTS

[0017] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments:

[0018] As Figures 1 to 4As shown in the figure, an electromagnetic heating coil winding ventilation and heat dissipation device for an extruder includes an extruder barrel 1, a heat-insulating cotton 2 is coated on the outer side of the extruder barrel 1, an electromagnetic heating coil 3 is wound on the heat-insulating cotton 2, an installation ring 4 is fixedly arranged on the extruder barrel 1, a heat-insulating shell 5 is arranged outside the installation ring 4, a groove is formed in the installation ring 4, a flange is fixedly arranged on the inner side of the heat-insulating shell 5, and the flange is clamped in the groove. An air circulation layer 6 is left between the heat-insulating shell 5 and the heat-insulating cotton 5. The heat-insulating shell 5 includes an upper shell 7 and a lower shell 8. A plurality of air outlet holes 9 are formed in the top of the upper shell 7, a gas one-way valve 10 is installed on the air outlet holes 9, an air inlet hole 11 is formed in the bottom of the lower shell 8, and a temperature controller 12 is installed on the extruder barrel 1. The electromagnetic heating coil 3 generates a magnetic field through an electric current. When an alternating current flows through the heating coil, a changing magnetic field will be generated around it. The extruder barrel 1 is made of a metal material. When placed in the magnetic field, the magnetic field will generate an induced current in the metal and generate heat, causing the temperature of the metal material to rise.

[0019] One side of the upper shell 7 is provided with a first ear plate 13, the same side of the lower shell 8 is provided with a second ear plate 14, a rotating shaft 15 is fixedly penetrated in the second ear plate 14, and the rotating shaft 15 passes through the first ear plate 13 and is rotatably connected with the upper shell 7; L-shaped convex blocks 16 are fixedly arranged on the other sides of the upper shell 7 and the lower shell 8, a limiting block 17 is clamped on the outer side of the L-shaped convex blocks 16, and a T-shaped groove is formed in the limiting block 17. One side of the upper shell 7 and the lower shell 8 is hinged, and the other side is fixedly connected detachably through a connecting device, and the heat-insulating shell 5 is fixedly installed on the outer side of the extruder barrel 1.

[0020] An electromagnet 18 is arranged inside the L-shaped convex block 16. When the extruder is running, the electromagnet 18 is energized to ensure that the L-shaped convex block 16 is fixedly connected, so that the upper shell 7 and the lower shell 8 are fixedly connected.

[0021] Corresponding bolt holes are formed in the L-shaped convex block 16 and the limiting block 17, and a fixing bolt 19 is rotatably connected in the bolt holes.

[0022] A sealing ring 20 is arranged between the upper shell 7 and the lower shell 8.

[0023] The using method and principle of the utility model are as follows: the extruder barrel 1 is heated through the electromagnetic heating coil 3, the heat-insulating cotton 2 is wrapped to keep the extruder barrel 1 warm, cold air enters the air circulation layer 6 from the air inlet hole 11 to ventilate and dissipate heat from the electromagnetic heating coil 3, and the airflow after the temperature rises is discharged from the gas one-way valve 10 along the air outlet holes 9. When the temperature exceeds the safety value, the temperature controller 12 sends out a warning signal, and the electromagnet 18 is automatically powered off, saving the time for the staff to disassemble and overhaul and preventing accidents.

[0024] The present utility model has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above-mentioned manner. As long as various improvements are made by adopting the method concept and technical solution of the present utility model, or directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. An electromagnetic heating coil winding ventilation and heat dissipation device for an extruder, characterized in that, It includes an extruder barrel (1), a heat-insulating cotton (2) is wrapped outside the extruder barrel (1), an electromagnetic heating coil (3) is wound on the heat-insulating cotton (2), an installation ring (4) is fixedly arranged on the extruder barrel (1), a heat-insulating housing (5) is arranged outside the installation ring (4), a groove is formed in the installation ring (4), a flange is fixedly arranged on the inner side of the heat-insulating housing (5), and the flange is clamped in the groove. An air circulation layer (6) is left between the heat-insulating housing (5) and the heat-insulating cotton (2). The heat-insulating housing (5) includes an upper housing (7) and a lower housing (8). A plurality of air outlet holes (9) are formed in the top of the upper housing (7), and a gas one-way valve (10) is installed on the air outlet holes (9). An air inlet hole (11) is formed in the bottom of the lower housing (8). A temperature controller (12) is installed on the extruder barrel (1).

2. The electromagnetic heating coil winding ventilation and heat dissipation device of an extruder according to claim 1, characterized in that A first ear plate (13) is arranged on one side of the upper housing (7), a second ear plate (14) is arranged on the same side of the lower housing (8), a rotating shaft (15) is fixedly penetrated in the second ear plate (14), and the rotating shaft (15) passes through the first ear plate (13) and is rotatably connected with the upper housing (7); L-shaped bumps (16) are fixedly arranged on the other sides of the upper housing (7) and the lower housing (8), a limiting block (17) is clamped outside the L-shaped bumps (16), and a T-shaped groove is formed in the limiting block (17).

3. An electromagnetic heating coil winding ventilation and heat dissipation device for an extruder according to claim 2, characterized in that, An electromagnet (18) is arranged inside the L-shaped bump (16).

4. An electromagnetic heating coil winding ventilation and heat dissipation device for an extruder according to claim 3, characterized in that, Corresponding bolt holes are formed in the L-shaped bump (16) and the limiting block (17), and a fixing bolt (19) is rotatably connected in the bolt holes.

5. An electromagnetic heating coil winding ventilation and heat dissipation device for an extruder according to claim 1, characterized in that, A sealing ring (20) is arranged between the upper housing (7) and the lower housing (8).

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