A melting furnace molten metal quantitative feeding furnace

Abstract

The present invention relates to the field of melting furnaces, and in particular to a melting furnace molten metal quantitative feeding furnace. The melting furnace molten metal quantitative feeding furnace of the present invention can directly introduce the molten metal in the quantitative furnace into the feed port of the die-casting machine, and can also realize quantitative storage of molten metal, thereby replacing the traditional die-casting soup feeder and insulation furnace, greatly saving costs and reducing energy consumption. Among them, the user can adjust the position of the quantitative plunger, thereby changing the capacity in the quantitative cavity, and realizing quantitative supply of different capacities; in addition, the furnace body is also provided with a first heating tube and a second heating tube, which can be used to heat and insulate the entire furnace body to reduce the heat loss of the molten metal, and the furnace body is also connected to a connecting pipe for injecting protective gas, providing a positive pressure slightly higher than the atmospheric pressure, so that the molten metal is always isolated from oxygen, which not only reduces the oxidation consumption of the molten metal, but also improves the quality of the molten metal.

Description

Technical Field

[0001] The invention relates to the field of melting furnaces, in particular to a melting furnace metal liquid quantitative feeding furnace. Background Art

[0002] In the field of metallurgy, melting metal is a very common and important process. The melted metal can be used to cast metal parts of various shapes. The melting furnace is a new type of high-efficiency and energy-saving aluminum melting furnace developed according to the aluminum smelting process. It is mainly used for melting and heat preservation of aluminum ingots. It can well meet the aluminum smelting process. The furnace is composed of a melting furnace, a crucible, a heating element, a furnace cover lifting mechanism, an electrical automatic temperature control system, etc. The furnace shell is welded into a cylindrical shape by section steel and steel plates.

[0003] At present, the domestic automobile industry, communication industry, construction industry, decoration industry, etc. are developing rapidly, and the use of metal alloys is also increasing. Combined with the low density, high strength, and strong die-castability of aluminum alloy products, they are suitable for die-casting complex structures, so they are widely used. Therefore, the requirements for equipment for smelting and storing aluminum liquid are also getting higher and higher. In the existing technology, the metal liquid is stored in a holding furnace, and then the metal liquid is transferred to the feed port of the die-casting machine by a soup feeder.

[0004] During the metal liquid transfer process, the molten metal liquid needs to be kept warm in a holding furnace, and a die-casting feeder is used to pour the metal liquid from the dosing furnace through the holding furnace into the corresponding die-casting machine, which consumes a lot of energy, is costly, and is not environmentally friendly. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a melting furnace molten metal quantitative feeding furnace, which saves costs and reduces energy consumption.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a melting furnace molten metal quantitative feeding furnace, including a furnace body, a fixed bracket, a main control motor, a main control rod, a lever bracket, a feeding control rod, and a quantitative plunger. The upper end of the furnace body is provided with a feeding port, and the lower end is provided with a discharging port. A quantitative cavity is embedded in the furnace body. The quantitative plunger can be movably arranged in the quantitative cavity up and down. The upper left side of the quantitative cavity is also provided with a feeding port, and the lower left side is provided with a discharging port. The feeding port is communicated with the feeding port, and the discharging port is communicated with the discharging port. The feeding control rod can be movably fixed on the fixed bracket up and down, and The lower end of the feed control rod passes through the furnace body and the discharge port to form a feed valve. The middle of the lever bracket is rotatably connected to the fixed bracket, one end is hinged to the surface of the main control rod, and the other end is fixed to the feed control rod through a fixed block. The rotating shaft of the main control motor is sleeved with a gear, and the main control rod is meshed with the gear on the main control motor. The main control motor drives the main control rod to move up and down, and the main control rod and the feed control rod move in opposite directions. The lower end of the main control rod is connected to a stop block for opening and closing the discharge port, and a stop block guide groove is provided at the position of the discharge port in the furnace body, and the stop block is arranged in the stop block guide groove.

[0007] Furthermore, the fixed bracket includes a vertical frame, a first horizontal frame, a second horizontal frame and a third horizontal frame, the lever bracket is hinged on the vertical frame, the main control motor is fixed to the vertical frame, the lower end of the first horizontal frame is connected to a first compression spring arranged in a vertical direction, the lower end of the second horizontal frame is connected to a second compression spring arranged in a vertical direction, the lower end of the first compression spring is connected to a fixed block, and the lower end of the second compression spring is connected to a stop block.

[0008] Furthermore, it also includes a height adjustment bracket, the upper end of which is connected to a furnace body support plate, and the furnace body is fixed on the furnace body support plate.

[0009] Wherein, the discharge port is connected with an inclined guide groove, and the end of the guide groove is connected with the feed port of the die-casting machine.

[0010] Furthermore, a first heating tube is provided in the furnace body near the right side of the quantitative cavity, and a second heating tube is provided in the furnace body near the guide groove of the blocking block.

[0011] Wherein, the quantitative plunger includes a connecting column and a piston head, the piston head is arranged in the quantitative cavity, the lower end of the connecting column is connected to the piston head, and the upper end passes through the furnace body and is connected to the fixed bracket.

[0012] Furthermore, the material stopper block includes a connecting rod and a material stopper head, the material stopper head and the material stopper block guide groove are mutually matching inverted trapezoids, the lower end of the connecting rod is connected to the material stopper head, and the upper end passes through the furnace body and is connected to the lower end of the main control rod.

[0013] Furthermore, the lever bracket is rotatably connected to the fixed bracket through a rotating shaft to form a fulcrum, and one end of the lever bracket is hinged to the surface of the main control rod through the rotating shaft, and the other end is hinged to the fixed block through the rotating shaft, and the fixed block is fixed to the feed control rod.

[0014] Furthermore, the furnace body is also provided with a connecting pipe for maintaining a positive pressure inside the furnace body, and a protective gas for isolating oxygen is injected into the connecting pipe in real time.

[0015] Wherein, the lower end of the quantitative cavity is arranged to be inclined downward toward the discharge port.

[0016] The beneficial effects of the present invention are as follows: the quantitative feeding furnace of the melting furnace molten metal of the present invention can directly introduce the molten metal in the quantitative furnace into the feed port of the die casting machine, and can also realize the quantitative storage of molten metal, replacing the traditional die casting soup feeding machine and the holding furnace, greatly saving costs and reducing energy consumption. During the operation process, the main control motor drives the main control rod to move downward through the gear, and drives the blocking block to block the discharge port, and during the downward movement of the main control rod, the other end of the lever bracket moves upward through the fulcrum, at this time, the lever bracket drives the feed control rod to move upward through the fixed block, so that the feed control rod opens the feed port, and the molten metal fills the quantitative cavity through the feed port; when the main control motor drives the main control rod to move upward in the reverse direction, the feed control rod moves downward and blocks the feed port, and the main control rod drives the blocking block to open the discharge port, and the molten metal flows out of the quantitative cavity under the action of gravity, and enters the die casting machine through the discharge port and the guide groove. Among them, the user can adjust the position of the quantitative plunger to change the capacity in the quantitative cavity and realize quantitative supply of different capacities; in addition, the first heating tube and the second heating tube are respectively provided inside the furnace body, which can be used to heat and insulate the entire furnace body and reduce the heat loss of the molten metal. The furnace body is also connected to a connecting pipe for injecting protective gas, providing a positive pressure slightly higher than the atmospheric pressure, so that the molten metal is always isolated from oxygen, which not only reduces the oxidation consumption of the molten metal, but also improves the quality of the molten metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Explanation of the accompanying drawings: 1. furnace body; 11. discharge port; 12. guide groove of the blocking block; 13. first heating tube; 14. second heating tube; 15. feed port; 151. protective insulation cover; 16. connecting channel; 2. fixed bracket; 21. vertical frame; 22. first horizontal frame; 23. second horizontal frame; 24. third horizontal frame; 25. first compression spring; 26. second compression spring; 3. main control motor; 4. main control rod; 5. lever bracket; 51. fixed block; 6. feed control rod; 7. quantitative plunger; 71. connecting column; 72. piston head; 8. quantitative cavity; 81. feed port; 82. discharge port; 9. blocking block; 91. connecting rod; 92. blocking head; 10. height adjustment bracket; 101. furnace body support plate; 011. guide groove; 012. die-casting machine. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below through specific implementations in combination with the accompanying drawings. The present application can be implemented in a variety of different forms and is not limited to the implementation described in this embodiment. The purpose of providing the following specific implementations is to facilitate a clearer and more thorough understanding of the disclosure of the present application, wherein the words indicating directions such as front, back, left, and right are only for the position of the structure shown in the corresponding drawings.

[0020] See also Figure 1 As shown, the present invention relates to a quantitative feeding furnace for molten metal in a melting furnace, comprising a furnace body 1, a fixed bracket 2, a main control motor 3, a main control rod 4, a lever bracket 5, a feeding control rod 6, and a quantitative plunger 7. The upper end of the furnace body 1 is provided with a feeding port 15, and the lower end is provided with a discharge port 11. A quantitative cavity 8 is embedded in the furnace body 1. The quantitative plunger 7 can be movably arranged in the quantitative cavity 8 up and down. The quantitative cavity 8 is also provided with a feeding port 81 on the upper left side, and a discharge port 82 on the lower left side. The feeding port 15 is communicated with the feeding port 81, and the discharge port 11 is communicated with the discharge port 82. The feeding control rod 6 can be movably fixed to the fixed bracket 2 up and down. On, the lower end of the feed control rod 6 passes through the furnace body 1 and the discharge port 82 to form a feed valve, the middle of the lever bracket 5 is rotatably connected to the fixed bracket 2, one end is hinged to the surface of the main control rod 4, and the other end is fixed to the feed control rod 6 through a fixed block 51, the rotating shaft of the main control motor 3 is sleeved with a gear, the surface of the main control rod 4 is meshed with the gear on the main control motor 3, the main control motor 3 drives the main control rod 4 up and down through the gear, the main control rod 4 and the feed control rod 6 move in opposite directions, the lower end of the main control rod 4 is connected to a stop block 9 for opening and closing the discharge port 82, a stop block guide groove 12 is provided at the position of the discharge port 82 in the furnace body 1, and the stop block 9 is arranged in the stop block guide groove 12.

[0021] Compared with the prior art, the quantitative feeding furnace of the melting furnace molten metal in this embodiment can directly introduce the molten metal in the quantitative furnace into the feed port of the die-casting machine 012, and can also realize the quantitative reserve of molten metal, replacing the traditional die-casting soup feeding machine and the insulation furnace, greatly saving costs and reducing energy consumption.

[0022] In this embodiment, the fixed bracket 2 includes a vertical frame 21, a first horizontal frame 22, a second horizontal frame 23 and a third horizontal frame 24, the lever bracket 5 is hinged on the vertical frame 21, the main control motor 3 is fixed to the vertical frame 21, the lower end of the first horizontal frame 22 is connected to a first compression spring 25 set in the vertical direction, the lower end of the second horizontal frame 23 is connected to a second compression spring 26 set in the vertical direction, the lower end of the first compression spring 25 is connected to the fixed block 51, and the lower end of the second compression spring 26 is connected to the stop block 9. By utilizing the elastic force of the compression spring to assist the pulling-up and pulling-down movements of the main control rod 4 and the feed control rod 6, the main control rod 4 and the feed control rod 6 have a more stable movement process.

[0023] In this embodiment, a first heating tube 13 is provided in the furnace body 1 on the right side near the quantitative cavity 8, and a second heating tube 14 is provided in the furnace body 1 on the side near the guide groove 12 of the blocking block, wherein the heating tubes are respectively arranged in other chambers of the furnace body 1 and are not in direct contact with the quantitative furnace body 8. A partition plate between the quantitative furnace body 8 and the heating tube has openings on the partition plate for heat transfer, thereby improving the heating and heat preservation effects of the heating tube.

[0024] In this embodiment, the quantitative plunger 7 includes a connecting column 71 and a piston head 72, and the piston head 72 is arranged in the quantitative cavity 8. The lower end of the connecting column 71 is connected to the piston head 72, and the upper end passes through the furnace body 1 and is connected to the third horizontal frame 23 of the fixed bracket 2, wherein the quantitative plunger 7 is screwed with the third horizontal bracket 23, and the user can manually adjust the upper and lower positions of the quantitative plunger 7, thereby changing the volume of the quantitative cavity 8; for greater automation, the connecting column 71 can also be connected to the motor through a transmission structure, and the motor can be used to drive the quantitative plunger 7 to move up and down. Among them, the material stopper 9 of this embodiment includes a connecting rod 91 and a material stopper head 92, and the material stopper head 92 and the material stopper block guide groove 12 are mutually matching inverted trapezoids, and the lower end of the connecting rod 91 is connected to the material stopper head 92, and the upper end passes through the furnace body 1 and is connected to the lower end of the main control rod 4.

[0025] In this embodiment, the lever bracket 5 is rotatably connected to the fixed bracket 2 by forming a fulcrum through a rotating shaft, and one end of the lever bracket 5 is hinged to the surface of the main control rod 4 through the rotating shaft, and the other end is hinged to the fixed block 51 through the rotating shaft, and the fixed block 51 is fixed to the feed control rod 6; the principle of lever movement is adopted to make the two ends of the lever bracket 5 move in opposite directions, so that the main control rod 4 and the feed control rod 6 connected thereto move in opposite directions.

[0026] Furthermore, the furnace body 1 is also provided with a connecting pipe 16 for maintaining a positive pressure in the furnace body 1. The connecting pipe 16 is injected with a protective gas for isolating oxygen, such as nitrogen, in real time, so that the molten metal is always isolated from oxygen, thereby avoiding oxidation of the molten metal and improving the quality of the molten metal. In order to better maintain the temperature of the molten metal in the furnace body 1, the inlet 15 of the furnace body 1 is also provided with a protective insulation cover 151.

[0027] In order to make the molten metal flow out better, the lower end of the quantitative cavity 8 is arranged to be inclined downward toward the discharge port 82 .

[0028] In this embodiment, a height adjustment bracket 10 is also included, and the upper end of the height adjustment bracket 10 is connected to a furnace body support plate 101, and the furnace body 1 is fixed on the furnace body support plate 101, so that the height of the charging furnace can be better changed according to actual conditions, and it is suitable for die-casting machines 012 of more sizes. Among them, the height adjustment bracket 10 in this embodiment adopts a cross telescopic bracket, and other structures with telescopic effects can also be adopted. This part belongs to the existing technology and will not be repeated here.

[0029] When using the present molten metal quantitative feeding furnace, the discharge port 11 is also connected to an inclined guide groove 011, and the end of the guide groove 011 is connected to the feed port of the die-casting machine 012 to introduce the molten metal into the die-casting machine 012; and the feed port 15 of the furnace body 1 is connected to the quantitative furnace, so that the molten metal can be introduced into the quantitative cavity 8 of the furnace body.

[0030] The use process of the molten metal quantitative feeding furnace of the melting furnace in this embodiment is as follows:

[0031] 1) The main control motor 3 drives the main control rod 4 to move downward through the gears, and drives the stopper block 9 to block the discharge port;

[0032] 2) During the downward movement of the main control rod 4, the lever bracket 5 moves upward through the rotating shaft fulcrum. At this time, the lever bracket 5 drives the feed control rod 6 to move upward through the fixed block 51, so that the feed control rod 6 opens the feed port 81;

[0033] 3) The molten metal fills the quantitative cavity 8 through the feed port 81;

[0034] 4) When the main control motor 3 drives the main control rod 4 to move upward in the reverse direction, the feed control rod 6 moves downward and blocks the feed port 81, and the main control rod 4 drives the blocking block 9 to open the discharge port 82;

[0035] 5) The molten metal flows out of the quantitative cavity 8 under the action of gravity and enters the die-casting machine 012 through the discharge port 11 and the guide groove 011;

[0036] 6) Repeat the above cycle to achieve quantitative feeding.

[0037] Among them, the user can adjust the position of the quantitative plunger 7, thereby changing the capacity in the quantitative cavity 8 and realizing quantitative supply of different capacities; in addition, the furnace body 1 is also provided with a first heating tube 13 and a second heating tube 14, which can be used to heat and insulate the entire furnace body 1 and reduce the heat loss of the molten metal.

[0038] It should be further explained that the structure in which the teeth on the surface of the main control rod 4 mesh with the gears in this embodiment can be replaced by other existing transmission mechanisms, such as a combination of a screw and a screw nut. As long as the main control motor 3 can drive the main control rod 4 to move up and down, and the lever bracket 5 and the main control rod 4 can move in opposite directions, there is no limitation here, and all are under the protection of the spirit of the design of the present invention. The first heating tube 13 and the second heating tube 14 and the main control motor 3 are electrically connected to the control system of the molten metal quantitative charging furnace respectively. The control system can be a PLC controller, and the control process is realized by a preset program. It belongs to the existing technology and will not be repeated here. Unless otherwise clearly stipulated and limited, the terms "connection" and "fixation" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A melting furnace molten metal quantitative feeding furnace, characterized in that: The invention comprises a furnace body, a fixed bracket, a main control motor, a main control rod, a lever bracket, a feed control rod and a quantitative plunger. The upper end of the furnace body is provided with a feed inlet, the lower end is provided with a discharge port, a quantitative cavity is embedded in the furnace body, the quantitative plunger can be movably arranged in the quantitative cavity, the upper left side of the quantitative cavity is also provided with a feed inlet, the lower left side is provided with a discharge port, the feed inlet is communicated with the feed inlet, the discharge port is communicated with the discharge port, the feed control rod can be movably fixed on the fixed bracket, and the lower end of the feed control rod passes through the furnace body and the discharge port. A feed valve is formed in the middle, the middle of the lever bracket is rotatably connected to the fixed bracket, one end is hinged to the surface of the main control rod, and the other end is fixed to the feed control rod through a fixed block, the rotating shaft of the main control motor is sleeved with a gear, the main control rod is meshed with the gear on the main control motor, the main control motor drives the main control rod to move up and down, the main control rod and the feed control rod move in opposite directions, the lower end of the main control rod is connected to a stopper block for opening and closing the discharge port, a stopper block guide groove is provided in the furnace body at the discharge port, and the stopper block is arranged in the stopper block guide groove; The fixed bracket includes a vertical frame, a first horizontal frame, a second horizontal frame and a third horizontal frame. The lever bracket is hinged on the vertical frame. The main control motor is fixed to the vertical frame. The lower end of the first horizontal frame is connected to a first compression spring arranged in a vertical direction. The lower end of the second horizontal frame is connected to a second compression spring arranged in a vertical direction. The lower end of the first compression spring is connected to a fixed block, and the lower end of the second compression spring is connected to a stop block.

2. A melting furnace molten metal quantitative feeding furnace according to claim 1, characterized in that: It also includes a height adjustment bracket, the upper end of which is connected to a furnace body support plate, and the furnace body is fixed on the furnace body support plate.

3. A melting furnace molten metal quantitative feeding furnace according to claim 1, characterized in that: The discharge port is connected with an inclined guide groove, and the end of the guide groove is communicated with the feed port of the die-casting machine.

4. A melting furnace molten metal quantitative feeding furnace according to claim 1, characterized in that: A first heating tube is arranged in the furnace body near the right side of the quantitative cavity, and a second heating tube is arranged in the furnace body near the guide groove of the blocking block.

5. The melting furnace molten metal quantitative feeding furnace according to claim 1, characterized in that: The quantitative plunger comprises a connecting column and a piston head, wherein the piston head is arranged in the quantitative cavity, the lower end of the connecting column is connected to the piston head, and the upper end thereof penetrates the furnace body and is connected to the fixed bracket.

6. A melting furnace molten metal quantitative feeding furnace according to claim 1, characterized in that: The material stopper block comprises a connecting rod and a material stopper head. The material stopper head and the guide groove of the material stopper block are mutually matching inverted trapezoids. The lower end of the connecting rod is connected to the material stopper head, and the upper end passes through the furnace body and is connected to the lower end of the main control rod.

7. The melting furnace molten metal quantitative feeding furnace according to claim 1, characterized in that: The lever bracket is rotatably connected to the fixed bracket through a rotating shaft to form a fulcrum, and one end of the lever bracket is hinged to the surface of the main control rod through the rotating shaft, and the other end is hinged to the fixed block through the rotating shaft, and the fixed block is fixed to the feed control rod.

8. The melting furnace molten metal quantitative feeding furnace according to claim 1, characterized in that: The furnace body is also provided with a connecting pipe for maintaining a positive pressure inside the furnace body, and a protective gas for isolating oxygen is injected into the connecting pipe in real time.

9. The melting furnace molten metal quantitative feeding furnace according to claim 1, characterized in that: The lower end of the quantitative cavity is arranged to be inclined downward toward the discharge port.

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