Automatic feeding mechanism of intermediate frequency furnace

Abstract

The utility model relates to the technical field of intermediate frequency furnaces, in particular to an automatic feeding mechanism of an intermediate frequency furnace, which comprises a material guide pipeline, the upper surface of one end of the material guide pipeline is fixedly connected with a feeding storage hopper, the side surface of the material guide pipeline is fixedly connected with a driving motor, and the inner wall of a cavity of the material guide pipeline is provided with a feeding auger. One end of the feeding auger penetrates through the inner wall of the cavity of the material guiding pipeline, and one end of the feeding auger is fixedly connected with a first chain wheel. The automatic feeding mechanism of the intermediate frequency furnace is provided with the mounting groove and the positioning baffle, so that when the automatic feeding mechanism works, the positioning baffle is pushed by a spring on the inner wall of the mounting groove to rotate horizontally, a discharging pipeline is conveniently closed, high-temperature airflow below the discharging pipeline is prevented from rising and entering, and when materials fall, the positioning baffle is pushed by gravity to rotate to be opened; and high-temperature airflow is prevented from influencing material conveying while falling of the materials is not interfered, so that workers are protected, and the workers are prevented from being hurt.

Description

Technical Field

[0001] This utility model relates to the field of medium frequency furnace technology, specifically to an automatic feeding mechanism for a medium frequency furnace. Background Technology

[0002] The working principle of an intermediate frequency furnace is electromagnetic induction heating: the furnace rectifies three-phase AC power into DC power through a rectifier, and then converts the DC power into adjustable intermediate frequency current through an inverter. The intermediate frequency current passes through the induction coil, generating high-density magnetic lines of force. These magnetic lines of force cut through the metal material within the induction coil, generating large eddy currents in the metal material. Utilizing the principle of electromagnetic induction, the metal material is heated until it melts. Related effects are utilized, including the skin effect (the current density is highest on the surface of the metal when AC current passes through it, and lowest or even none on the center line); the proximity effect (when two pieces of metal are brought close together, the current in both metals will converge at the point of least magnetic flux); and the ring effect (when AC current passes through a circular coil, the maximum current density occurs on the inner side of the coil conductor). The intermediate frequency furnace comprehensively utilizes these three effects to heat and melt metal.

[0003] In operation, the existing feeding mechanism of the medium frequency furnace generally uses the rotation of the auger to transport materials. However, after the end cover of the feeding port of the medium frequency furnace is opened, high-temperature gas often sprays out. The high-temperature gas flows with the feeding pipe, which not only affects the entry of materials, but also easily flows towards the staff, causing safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide an automatic feeding mechanism for a medium-frequency furnace, in order to solve the problem mentioned in the background art that the high-temperature airflow flows along the feeding pipe, which not only affects the entry of materials, but also easily flows towards the workers, causing safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding mechanism for a medium-frequency furnace, comprising a feeding pipe, a feeding storage hopper fixedly connected to the upper surface of one end of the feeding pipe, a drive motor fixedly connected to the side surface of the feeding pipe, a feeding auger installed on the inner wall of the cavity of the feeding pipe, one end of the feeding auger penetrating through the inner wall of the cavity of the feeding pipe, and a first sprocket fixedly connected to one end of the feeding auger, a second sprocket installed on the side of the feeding storage hopper, an auxiliary crushing knife provided on the inner wall of the cavity of the feeding storage hopper, a discharge pipe fixedly connected to the lower surface of one end of the feeding pipe, and a linkage adjustment mechanism provided on the inner wall of the discharge pipe, which drives the first magnet to attract the second magnet in the linkage slot by rotating the positioning baffle in the mounting groove, thereby inflating the auxiliary airbag on the lower surface of the limiting plate through the piston column to improve the sealing performance.

[0006] Preferably, the material guiding pipe is connected to the feeding storage hopper and the discharging pipe respectively, the output end of the drive motor passes through the side surface of the material guiding pipe, and the output end of the drive motor is fixedly connected to the rotating shaft of the feeding auger.

[0007] Using the above technical solution, materials are introduced through the feeding storage hopper, transported through the material guide pipe, and finally discharged through the discharge pipe for processing.

[0008] Preferably, the feeding auger and the guiding pipe are rotatably connected, the first sprocket and the guiding pipe are rotatably connected, and a transmission chain is provided between the outer surface of the first sprocket and the outer surface of the second sprocket.

[0009] Using the above technical solution, the rotation of the feeding auger causes the first sprocket at one end to rotate.

[0010] Preferably, the second sprocket is rotatably connected to the feed storage hopper, the auxiliary crushing knife is rotatably connected to the feed storage hopper, the shaft of the second sprocket passes through the surface of the feed storage hopper, and the shaft of the second sprocket is fixedly connected to the shaft of the auxiliary crushing knife.

[0011] Using the above technical solution, the rotation of the first sprocket causes the second sprocket to rotate via the transmission chain on its surface, and the second sprocket in turn drives the auxiliary crushing blade to rotate.

[0012] Preferably, the linkage adjustment mechanism includes a mounting groove, which is formed on the inner wall of the discharge pipe. A positioning baffle is provided on the surface of the mounting groove. A first magnet is fixedly connected to the upper surface of one end of the positioning baffle. A linkage slot is formed on the inner wall surface of the discharge pipe. A second magnet is connected to the inner wall of the linkage slot. A piston column is fixedly connected to the upper end of the second magnet. A limit plate is fixedly connected to the inner wall of the discharge pipe. An auxiliary airbag is fixedly connected to the lower surface of the limit plate.

[0013] Using the above technical solution, an installation groove is opened on the inner wall of the discharge pipe, so that the surface of the installation groove is rotatably connected to the positioning baffle.

[0014] Preferably, the mounting groove and the positioning baffle are rotatably connected, a spring is connected between the mounting groove and the positioning baffle, the width of the positioning baffle is greater than the width of the discharge pipe cavity, and the magnetic poles of the first magnet and the second magnet are opposite at their opposite ends.

[0015] Using the above technical solution, the positioning baffle is rotated and raised by the spring, and the positioning baffle causes the first magnet and the second magnet to move closer to each other and attract each other.

[0016] Preferably, the second magnet and the piston rod are both slidably connected to the discharge pipe, and an air groove is connected between the lower end of the piston rod and the limiting plate. The air groove of the limiting plate is connected to the cavity of the auxiliary airbag.

[0017] Using the above technical solution, the piston rod is driven to slide down by the second magnet, so that the piston rod fills the auxiliary airbag with air.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the automatic feeding mechanism of the medium-frequency furnace:

[0019] 1. The device is equipped with an installation groove and a positioning baffle. When the device is working, the spring on the inner wall of the installation groove pushes the positioning baffle to rotate horizontally, which facilitates the sealing of the discharge pipe and prevents the high-temperature airflow below from rising and entering. When the material falls, the positioning baffle is opened by gravity. This prevents the high-temperature airflow from affecting the material transportation without interfering with the falling of the material, thus protecting the staff from injury.

[0020] 2. A limiting plate and an auxiliary airbag are provided so that when the device is working, the rotation of the positioning baffle makes it easier for the positioning baffle to drive the first magnet to attract the second magnet, which improves the stability of the positioning baffle. At the same time, the second magnet will drive the piston column to slide down, which will push the piston column into the auxiliary airbag, thus facilitating the expansion of the auxiliary airbag. The auxiliary airbag fits against the positioning baffle for sealing, which increases its practicality.

[0021] 3. The device is equipped with a second sprocket and an auxiliary crusher. When the device is working, the drive motor drives the feeding auger to rotate, which facilitates the movement of materials. The feeding auger drives the first sprocket to rotate, and the first sprocket drives the second sprocket and the auxiliary crusher to rotate through the transmission chain. The auxiliary crusher cuts and mixes the materials, which improves the practicality of the device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the material guiding pipe and the feeding storage hopper of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the material guiding pipe and the drive motor of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the connection between the second sprocket and the auxiliary crushing blade of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the discharge pipe and the mounting groove of this utility model;

[0026] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the positioning baffle and the first magnet of this utility model.

[0028] In the diagram: 1. Feeding pipe; 2. Feeding storage hopper; 3. Drive motor; 4. Feeding auger; 5. First sprocket; 6. Second sprocket; 7. Auxiliary crushing knife; 8. Discharge pipe; 9. Mounting groove; 10. Positioning baffle; 11. First magnet; 12. Linkage slot; 13. Second magnet; 14. Piston column; 15. Limiting plate; 16. Auxiliary airbag. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: an automatic feeding mechanism for a medium-frequency furnace, comprising a feeding pipe 1, a feeding storage hopper 2, a drive motor 3, a feeding auger 4, a first sprocket 5, a second sprocket 6, an auxiliary crushing knife 7, a discharge pipe 8, a mounting groove 9, a positioning baffle 10, a first magnet 11, a linkage slot 12, a second magnet 13, a piston column 14, a limiting plate 15, and an auxiliary airbag 16. The feeding storage hopper 2 is fixedly connected to the upper surface of one end of the feeding pipe 1, and the drive motor is fixedly connected to the side surface of the feeding pipe 1. 3. A feeding auger 4 is installed on the inner wall of the cavity of the feeding pipe 1. The feeding pipe 1 is connected to the feeding storage hopper 2 and the discharge pipe 8 respectively. The output end of the drive motor 3 passes through the side surface of the feeding pipe 1 and is fixedly connected to the rotating shaft of the feeding auger 4. When using this device, the material is first placed in the feeding storage hopper 2, and then the material is introduced into the feeding pipe 1. The drive motor 3 drives the feeding auger 4 to rotate, so that the feeding auger 4 transports the material. Finally, the material enters the discharge pipe 8 for discharge.

[0031] One end of the feeding auger 4 penetrates the inner wall of the cavity of the feed pipe 1, and a first sprocket 5 is fixedly connected to one end of the feeding auger 4. A second sprocket 6 is installed on the side of the feed storage hopper 2. An auxiliary crushing knife 7 is provided on the inner wall of the cavity of the feed storage hopper 2. The feeding auger 4 and the feed pipe 1 are rotatably connected. The first sprocket 5 and the feed pipe 1 are rotatably connected. A transmission chain is provided between the outer surface of the first sprocket 5 and the outer surface of the second sprocket 6. The second sprocket 6 and the feed storage hopper 2 are rotatably connected. The auxiliary crushing knife 7... The second sprocket 6 is rotatably connected to the feeding storage hopper 2. The shaft of the second sprocket 6 passes through the surface of the feeding storage hopper 2, and the shaft of the second sprocket 6 is fixedly connected to the shaft of the auxiliary crushing knife 7. After the material enters the discharge pipe 8, it falls down and pushes the positioning baffle 10 to rotate. When no material falls, the positioning baffle 10 is pushed to rotate horizontally by the spring on the inner wall of the mounting groove 9, which facilitates the sealing of the discharge pipe 8, thereby preventing the backflow of high temperature airflow, preventing the material transportation from being affected, and preventing injury to the user.

[0032] A discharge pipe 8 is fixedly connected to the lower surface of one end of the feeding pipe 1. The linkage adjustment mechanism includes a mounting groove 9, which is opened on the inner wall of the discharge pipe 8. A positioning baffle 10 is provided on the surface of the mounting groove 9. A first magnet 11 is fixedly connected to the upper surface of one end of the positioning baffle 10. A linkage slot 12 is opened on the inner wall surface of the discharge pipe 8. A second magnet 13 is connected to the inner wall of the linkage slot 12. A piston column 14 is fixedly connected to the upper end of the second magnet 13. A limit plate 15 is fixedly connected to the inner wall of the discharge pipe 8. An auxiliary airbag 16 is fixedly connected to the lower surface of the limit plate 15. When the drive motor 3 drives the feeding auger 4 and the first sprocket 5 to rotate, the first sprocket 5 drives the second sprocket 6 to rotate through the transmission chain. This facilitates the second sprocket 6 to drive the auxiliary crushing knife 7 to rotate relative to the feeding storage hopper 2. The rotation of the auxiliary crushing knife 7 will cut and stir the material, improving the uniformity of the material.

[0033] The inner wall of the discharge pipe 8 is equipped with a linkage adjustment mechanism. This mechanism, through the rotation of the positioning baffle 10 in the mounting groove 9, drives the first magnet 11 to attract the second magnet 13 in the linkage slot 12, which in turn inflates the auxiliary airbag 16 on the lower surface of the limiting plate 15 via the piston column 14, improving sealing. The mounting groove 9 and the positioning baffle 10 are rotatably connected, and a spring connects them. The width of the positioning baffle 10 is greater than the width of the cavity in the discharge pipe 8. The magnetic poles of the first magnet 11 and the second magnet 13 are opposite at their opposite ends. Both the second magnet 13 and the piston column 14 are slidably connected to the discharge pipe 8. The lower end of the piston column 14... An air groove is connected to the limiting plate 15. The air groove of the limiting plate 15 is connected to the cavity of the auxiliary airbag 16. After the positioning baffle 10 rotates horizontally, the positioning baffle 10 drives the first magnet 11 to correspond to the second magnet 13, so that the first magnet 11 and the second magnet 13 attract each other, which increases the stability of the positioning baffle 10. At the same time, the second magnet 13 will drive the piston column 14 to slide in the linkage slot 12. The piston column 14 pushes air into the cavity of the limiting plate 15 and the auxiliary airbag 16, which facilitates the inflation of the auxiliary airbag 16. The auxiliary airbag 16 then fits against the surface of the positioning baffle 10, which further improves the sealing performance of the positioning baffle 10.

[0034] Working principle: When using the automatic feeding mechanism of this medium-frequency furnace, the material is first introduced into the feeding pipe 1 through the feeding storage hopper 2. The drive motor 3 drives the feeding auger 4 to rotate, which facilitates the feeding auger 4 to carry the material for conveying. The feeding auger 4 drives the first sprocket 5 to rotate. The first sprocket 5 drives the second sprocket 6 and the auxiliary crushing knife 7 to rotate through the transmission chain for stirring. The material is discharged through the discharge pipe 8. The material pushes the positioning baffle 10 to rotate and discharge. The spring on the surface of the mounting groove 9 pushes the positioning baffle 10 to rotate horizontally for sealing. At the same time, the first magnet 11 and the second magnet 13 attract each other, which facilitates the second magnet 13 to drive the piston column 14 to slide in the linkage slot 12. This allows air to enter the cavity of the limiting plate 15 and the auxiliary air bag 16, so that the auxiliary air bag 16 fits against the positioning baffle 10 for sealing, which increases the overall practicality.

[0035] 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. An automatic feeding mechanism of a medium frequency furnace, comprising a material guiding pipe (1), the upper surface of one end of which is fixedly connected with a feeding storage hopper (2), characterized in that: The side surface of the material guide pipe (1) is fixedly connected with a driving motor (3), the inner wall of the cavity of the material guide pipe (1) is provided with a feeding auger (4), one end of the feeding auger (4) penetrates the inner wall of the cavity of the material guide pipe (1), and the one end of the feeding auger (4) is fixedly connected with a first sprocket (5), the side surface of the feeding storage hopper (2) is provided with a second sprocket (6), the inner wall of the cavity of the feeding storage hopper (2) is provided with an auxiliary material crushing knife (7), the lower surface of one end of the material guide pipe (1) is fixedly connected with a discharging pipe (8), the inner wall of the discharging pipe (8) is provided with a linkage adjusting mechanism, the positioning baffle (10) in the mounting groove (9) is rotated to drive the first magnet (11) to attract the second magnet (13) in the linkage slot (12), and then the auxiliary air bag (16) on the lower surface of the limiting plate (15) is inflated through the piston column (14) to improve the sealing performance.

2. The automatic feeding mechanism of the intermediate frequency furnace according to claim 1, characterized in that: The material guide pipe (1) is connected with the feeding storage hopper (2) and the discharging pipe (8) in communication, the output end of the driving motor (3) penetrates the side surface of the material guide pipe (1), and the output end of the driving motor (3) is fixedly connected with the rotating shaft of the feeding auger (4).

3. The automatic feeding mechanism of the intermediate frequency furnace according to claim 1, characterized in that: The feeding auger (4) is rotatably connected with the material guide pipe (1), the first sprocket (5) is rotatably connected with the material guide pipe (1), and the transmission chain is arranged between the outer surface of the first sprocket (5) and the outer surface of the second sprocket (6).

4. The automatic feeding mechanism of the intermediate frequency furnace according to claim 1, characterized in that: The second sprocket (6) is rotatably connected with the feeding storage hopper (2), the auxiliary material crushing knife (7) is rotatably connected with the feeding storage hopper (2), the rotating shaft of the second sprocket (6) penetrates the surface of the feeding storage hopper (2), and the rotating shaft of the second sprocket (6) is fixedly connected with the rotating shaft of the auxiliary material crushing knife (7).

5. The automatic feeding mechanism of the intermediate frequency furnace according to claim 1, characterized in that: The linkage adjusting mechanism comprises a mounting groove (9), the mounting groove (9) is arranged on the inner wall of the discharging pipe (8), the surface of the mounting groove (9) is provided with a positioning baffle (10), one end of the positioning baffle (10) is fixedly connected with a first magnet (11), the inner wall of the discharging pipe (8) is provided with a linkage slot (12), the inner wall of the linkage slot (12) is connected with a second magnet (13), the upper end of the second magnet (13) is fixedly connected with a piston column (14), the inner wall of the discharging pipe (8) is fixedly connected with a limiting plate (15), and the lower surface of the limiting plate (15) is fixedly connected with an auxiliary air bag (16).

6. An automatic charging mechanism for an intermediate frequency furnace as claimed in claim 5, wherein: The mounting groove (9) is rotatably connected with the positioning baffle (10), springs are connected between the mounting groove (9) and the positioning baffle (10), the width of the positioning baffle (10) is greater than the width of the cavity of the discharging pipe (8), and the opposite poles of the first magnet (11) and the second magnet (13) are opposite.

7. The automatic charging mechanism of the intermediate frequency furnace according to claim 5, characterized in that: The second magnet (13) and the piston column (14) are slidably connected with the discharging pipe (8), the lower end of the piston column (14) is in communication with an air groove between the limiting plate (15), and the air groove of the limiting plate (15) is in communication with the cavity of the auxiliary air bag (16).

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