Machine edge furnace for quantitative pouring of metal liquid

Abstract

The machine edge furnace comprises a quantitative liquid conveying device and a furnace body, and the quantitative liquid conveying device comprises an electromagnetic pump, a liquid conveying pipe and an adapter; a hearth and a soup outlet are formed in the furnace body; the electromagnetic pump is provided with a pump cover, the pump cover is clamped on the soup outlet, a suction port of the electromagnetic pump is located in the hearth, a discharge port of the electromagnetic pump is used for being connected with an adapter outside the hearth, and the other end of the adapter is connected with the liquid conveying pipe. And for a machine edge furnace for feeding by a manipulator soup ladle, the problems that oxide inclusions of a die casting machine are increased due to the adoption of an open chute and the capacity is lost due to deflation each time can be avoided while accurate quantitative pouring can be realized. And on the other hand, the structure of the existing machine edge furnace does not need to be changed, the quantitative liquid conveying device is used for mounting quickly and conveniently, and compared with an air pressure type pouring machine edge furnace, structural arrangement such as sealing does not need to be considered, so that the manufacturing cost of the whole equipment of the machine edge furnace is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of quantitative pouring equipment, in particular to a machine-side furnace for quantitative pouring of metal liquid. Background Art

[0002] In today's competitive market, the competition for product quality is essentially a competition for technology. To achieve this goal, numerous manufacturers are pursuing maximal technological advancements. Die casting and gravity casting, two of the most common aluminum alloy production processes, utilize a die-casting machine, a press-side furnace, and a feeding device. The feeding device transfers molten metal from the press-side furnace to the die-casting machine. This system requires precise metering. Currently, a common method involves robotic ladle feeding, where the feeding device is a robot. However, this method presents several challenges: low metering accuracy, resulting in significant process waste; difficulty obtaining high-quality molten aluminum; and, during the traditional robotic ladle scooping process, the molten aluminum is exposed to air multiple times, causing oxidation and inhalation. Furthermore, during the scooping process, some slag is easily introduced into the molten aluminum, leading to defects such as inclusions, shrinkage cavities, and sand holes in the casting. This makes it difficult to meet the high-quality casting requirements of the automotive industry and other sectors.

[0003] There are also pneumatic pouring furnaces, which pressurize the molten aluminum by introducing dry compressed air into the upper chamber, forcing it out of a riser tube for metered pouring. Pneumatic pouring furnaces are specifically categorized as single-chamber and dual-chamber metered pouring furnaces. Single-chamber furnaces require a complete seal throughout the furnace, placing high demands on the furnace construction. Furthermore, machine-side furnaces are specialized and cannot be used universally. Furthermore, single-chamber furnaces require a large volume of dry compressed air to be pumped into the furnace chamber for each metered pour. After each pour, the chamber must be heated to a high temperature (over 600°C) and the compressed air must be exhausted. This often results in high compressed air usage and the heat removed during exhaust, resulting in high energy consumption. Dual-chamber furnaces reduce air usage and require less stringent sealing requirements for the main chamber, but the metered chamber still requires sealing, and the furnace body itself is specially constructed.

[0004] That is, the existing equipment lacks a machine-side furnace that can simultaneously achieve high-precision quantitative pouring, energy saving, and no need to set up a sealing structure to meet the requirements of air pressure pouring. Utility Model Content

[0005] Aiming at the above problems, the utility model provides a machine-side furnace for quantitative pouring of metal liquid.

[0006] The technical solutions adopted by this utility model are as follows:

[0007] The present application provides a machine-side furnace for quantitative pouring of molten metal, comprising a quantitative infusion device and a furnace body, wherein the quantitative infusion device comprises an electromagnetic pump, an infusion tube and an adapter;

[0008] The furnace body is formed with a furnace and a soup outlet;

[0009] The electromagnetic pump has a pump cover, which is clamped on the soup outlet. The suction port of the electromagnetic pump is located in the furnace. The discharge port of the electromagnetic pump is used to connect with the adapter outside the furnace, and the other end of the adapter is connected to the infusion tube.

[0010] By setting an electromagnetic pump on the soup outlet of the machine-side furnace body and pumping out the liquid metal solution from the furnace in a quantitative manner, instead of the traditional robot spoon feeding, for the machine-side furnace fed by the robot spoon, while being able to achieve precise quantitative pouring, on the one hand, it avoids the serious oxidation problem caused by the open structure currently commonly used in metal liquid transmission, and improves product quality; that is, the machine-side furnace provided by this application can avoid the problems of increased oxidation inclusions in the die-casting machine caused by the use of an open chute and the loss of capacity caused by each gas discharge. On the other hand, there is no need to change the current machine-side furnace structure, and the use of a quantitative infusion device is quick and easy to install. Compared with the machine-side furnace with pneumatic pouring, there is no need to consider structural settings such as sealing, and the manufacturing cost of the overall machine-side furnace equipment can be reduced.

[0011] Furthermore, the electromagnetic pump further comprises a liquid metal pumping pipe, a first electrode, a second electrode, a magnet, an excitation coil, and a pump housing connected to the pump cover, wherein the pump housing is located inside the furnace;

[0012] The liquid metal pumping pipe is installed on the pump housing, and the two ends are the suction port and the discharge port respectively;

[0013] The first electrode and the second electrode are respectively provided on two opposite side walls of the liquid metal pumping pipe, and the first electrode and the second electrode are used to contact the liquid metal in the liquid metal pumping pipe and provide current to the liquid metal;

[0014] The two ends of the magnet are respectively located beside two opposite side walls of the liquid metal pumping pipe and are arranged perpendicular to the first electrode and the second electrode. Here, the perpendicular arrangement means that the line connecting the two ends of the magnet is perpendicular to the line connecting the first electrode and the second electrode;

[0015] The excitation coil is wound around the magnet and its two ends are connected to the first electrode and the second electrode respectively;

[0016] The first electrode and the second electrode are used to be connected to the positive electrode and the negative electrode of the power supply respectively.

[0017] By controlling the electromagnetic force, the electromagnetic pump can stably pump out liquid metal. Furthermore, the magnet and excitation coil are located inside the pump housing, which is then located inside the furnace chamber, thus reducing the overall volume of the machine-side furnace for quantitative metal pouring.

[0018] Furthermore, the cross-sectional dimension of the pump cover is larger than the cross-sectional dimension of the pump casing.

[0019] Furthermore, the excitation coil is connected in series with the first electrode and the second electrode respectively.

[0020] Under the same conditions, the excitation coil is connected in series with the first electrode and the second electrode to increase the current of the excitation coil. As the current of the excitation coil increases, the generated magnetic field also increases, so that the number of turns of the excitation coil of the electromagnetic pump and the volume of the magnet can be greatly reduced, and the electromagnetic pump can be placed in a liquid metal container to realize continuous feeding production of liquid metal.

[0021] Furthermore, the magnet includes an iron core portion, and the excitation coil is wound around the outer circumference of the iron core portion.

[0022] Furthermore, an embedding groove is formed on the outer side wall of the liquid metal pumping pipe, and the end of the iron core is located in the embedding groove to prevent the magnet from falling off.

[0023] Furthermore, the pump cover is provided with an air inlet pipe and an air outlet, the air outlet end of the air inlet pipe is located inside the pump housing and is arranged corresponding to the magnet, the air inlet pipe is used to input cooling gas into the pump, and the air outlet is used to discharge the hot air in the pump.

[0024] Furthermore, the machine-side furnace also includes a power supply, which is arranged outside the furnace body and is used to supply power to the first electrode and the second electrode.

[0025] During actual use, the electric wire connected to the power supply enters the pump through the air outlet and is connected to the first electrode and the second electrode.

[0026] Furthermore, the adapter is detachably connected to the infusion tube and the discharge port of the electromagnetic pump respectively.

[0027] Furthermore, the machine-side furnace also includes a furnace cover and a radiation heating tube. The furnace cover is arranged above the furnace chamber and covers the furnace body, and the radiation heating tube is arranged on the furnace cover.

[0028] Furthermore, the furnace chamber includes a main chamber and a slave chamber, the main chamber and the slave chamber are connected through a soup outlet channel, the soup outlet is formed above the slave chamber, and the electromagnetic pump is located in the slave chamber.

[0029] Furthermore, the furnace body is also formed with a soup adding port, and the soup adding port is communicated with the furnace.

[0030] During actual use, the soup filling port is connected to the main chamber, and liquid metal is added into the main chamber.

[0031] Furthermore, the infusion tube includes an infusion part and a liquid outlet part, the infusion part is arranged horizontally, the liquid outlet part is connected to an end of the infusion part away from the adapter, and the liquid outlet part is arranged upwardly inclined.

[0032] Furthermore, heating elements are provided on the liquid delivery pipe and the liquid metal pumping pipe respectively, and the heating elements are used to prevent the temperature of the pumped liquid metal from decreasing.

[0033] Furthermore, the heating element on the infusion tube is arranged below the infusion tube.

[0034] Furthermore, the heating element is a heating wire.

[0035] The beneficial effects of the utility model are:

[0036] (1) The machine-side furnace provided in the application can realize precise quantitative pouring through a pump-type quantitative infusion device, thereby avoiding the problems of increased oxidation inclusions in the die-casting machine caused by the use of an open chute and capacity loss caused by each gas release. There is no need to change the current machine-side furnace structure, and compared with the machine-side furnace with pneumatic pouring, there is no need to consider structural settings such as sealing, so the manufacturing cost of the overall machine-side furnace equipment can be reduced.

[0037] (2) Under the same conditions, the excitation coil is connected in series with the first electrode and the second electrode to increase the current of the excitation coil. As the current of the excitation coil increases, the magnetic field generated also increases, so that the number of turns of the excitation coil of the electromagnetic pump and the volume of the magnet can be greatly reduced, and the electromagnetic pump can be placed in the liquid metal container to realize the continuous feeding production of liquid metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the axial structure of the machine-side furnace in an embodiment of the present utility model;

[0039] Figure 2 This is a schematic diagram of the structure of the machine-side furnace in the embodiment of the present invention when viewed from above;

[0040] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0041] Figure 4 yes Figure 3 A schematic diagram of the partially enlarged structure of the middle part;

[0042] Figure 5 This is a structural diagram of the machine-side furnace in the main viewing direction of the embodiment of the utility model;

[0043] Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle BB;

[0044] Figure 7 yes Figure 6 A schematic diagram of the partially enlarged structure of B in the middle;

[0045] Figure 8 It is a schematic diagram of the axial structure of the liquid metal pumping pipe according to an embodiment of the present utility model.

[0046] The reference numerals in the figures are:

[0047] 100. Quantitative infusion device; 110. Electromagnetic pump; 111. Pump cover; 1111. Air inlet pipe; 1112. Air outlet; 112. Liquid metal pumping pipe; 1121. Suction port; 1122. Discharge port; 1123. Embedded groove; 1124. Perforation; 113. First electrode; 114. Second electrode; 115. Magnet; 116. Excitation coil; 117. Pump housing; 120. Infusion tube; 121. Infusion unit; 122. Discharge unit; 130. Adapter; 200. Furnace body; 210. Furnace chamber; 211. Main chamber; 212. Secondary chamber; 213. Soup outlet channel; 220. Soup outlet; 230. Soup adding port; 300. Power supply; 400. Furnace cover; 410. Radiant heating tube. DETAILED DESCRIPTION

[0048] The present invention will be described in detail below with reference to the accompanying drawings.

[0049] Example 1

[0050] like Figures 1 to 8 As shown, the present application provides a machine-side furnace for quantitative pouring of liquid metal, comprising a quantitative infusion device 100 and a furnace body 200, wherein the quantitative infusion device 100 comprises an electromagnetic pump 110, an infusion tube 120 and an adapter 130;

[0051] The furnace body 200 is formed with a furnace 210 and a soup outlet 220;

[0052] The electromagnetic pump 110 has a pump cover 111, which is clamped on the soup outlet 220. The suction port 1121 of the electromagnetic pump 110 is located inside the furnace 210. The discharge port 1122 of the electromagnetic pump 110 is used to connect to the adapter 130 outside the furnace 210. The other end of the adapter 130 is connected to the infusion tube 120.

[0053] By setting the electromagnetic pump 110 on the soup outlet 220 of the furnace body 200 and pumping out the liquid metal solution from the furnace 210 in a quantitative manner, instead of the traditional robot spoon feeding, for the machine-side furnace with robot spoon feeding, while achieving precise quantitative pouring, on the one hand, it avoids the serious oxidation problem caused by the open structure currently used in metal liquid transmission, and improves product quality; that is, the machine-side furnace provided by this application can avoid the problem of increased oxidation inclusions in the die-casting machine caused by the use of an open chute and the loss of capacity caused by each gas discharge. On the other hand, there is no need to change the current machine-side furnace structure, and the quantitative infusion device 100 is quick and easy to install. Compared with the machine-side furnace with pneumatic pouring, there is no need to consider structural settings such as sealing, and the manufacturing cost of the overall machine-side furnace equipment is reduced.

[0054] like Figure 4 and Figure 7 As shown, in this embodiment, the electromagnetic pump 110 further includes a liquid metal pumping pipe 112, a first electrode 113, a second electrode 114, a magnet 115, an excitation coil 116, and a pump housing 117 connected to the pump cover 111, and the pump housing 117 is located inside the furnace 210;

[0055] The liquid metal pumping pipe 112 is installed on the pump housing 117, with a suction port 1121 and a discharge port 1122 at both ends.

[0056] The first electrode 113 and the second electrode 114 are respectively provided on two opposite side walls of the liquid metal pumping pipe 112. The first electrode 113 and the second electrode 114 are used to contact the liquid metal in the liquid metal pumping pipe 112 and provide current to the liquid metal;

[0057] The two ends of the magnet 115 are respectively located beside two opposite side walls of the liquid metal pumping tube 112 and are arranged perpendicular to the first electrode 113 and the second electrode 114. The vertical arrangement here means that the line connecting the two ends of the magnet 115 is perpendicular to the line connecting the first electrode 113 and the second electrode 114;

[0058] The excitation coil 116 is wound around the magnet 115 and its two ends are connected to the first electrode 113 and the second electrode 114 respectively;

[0059] The first electrode 113 and the second electrode 114 are respectively used to connect to the positive electrode of the power source 300 and the negative electrode of the power source 300 .

[0060] By controlling the electromagnetic force, the electromagnetic pump 110 can stably pump out the liquid metal. Meanwhile, the magnet 115 and the excitation coil 116 are both disposed within the pump housing 117, which is disposed within the furnace 210, thereby reducing the overall volume of the machine-side furnace for quantitatively pouring the liquid metal.

[0061] During actual operation, the electromagnetic pump 110 is placed in the soup outlet 220 or the insulation furnace and preheated together with the furnace. When the temperature of the furnace body 200 reaches a temperature suitable for adding molten metal, the molten metal is added into the furnace from the soup adding port 230. The power supply 300 of the electromagnetic pump 110 is adjusted, and the control parameters are controlled so that the molten metal fills the liquid metal pumping pipe 112 under the electromagnetic force operation of the electromagnetic pump 110 and the electromagnetic pump 110 is in standby mode.

[0062] In actual use, the metal liquid can be molten aluminum or aluminum alloy liquid.

[0063] In actual use, a control cabinet is also included, and the control cabinet is used to electrically control the opening and closing of the electromagnetic pump 110.

[0064] In this embodiment, a through-hole 1124 is formed on the side wall of the liquid metal pumping pipe 112 , and the first electrode 113 and the second electrode 114 are disposed on the side wall of the liquid metal pumping pipe 112 through the through-hole 1124 .

[0065] In this embodiment, the cross-sectional dimension of the pump cover 111 is larger than the cross-sectional dimension of the pump housing 117 .

[0066] In this embodiment, the excitation coil 116 is connected in series with the first electrode 113 and the second electrode 114 respectively.

[0067] Under the same conditions, the excitation coil 116 is connected in series with the first electrode 113 and the second electrode 114 to increase the current of the excitation coil 116. As the current of the excitation coil 116 increases, the generated magnetic field also increases, so that the number of turns of the excitation coil 116 of the electromagnetic pump 110 and the volume of the magnet 115 can be greatly reduced, and the electromagnetic pump 110 can be placed in a liquid metal container to realize continuous feeding production of liquid metal.

[0068] In this embodiment, the magnet 115 includes an iron core, and the excitation coil 116 is wound around the outer circumference of the iron core.

[0069] like Figure 7 and Figure 8 As shown, in this embodiment, an embedding groove 1123 is formed on the outer wall of the liquid metal pumping tube 112 , and the end of the iron core is located in the embedding groove 1123 to prevent the magnet 115 from falling off.

[0070] In this embodiment, the liquid metal pump is a tetrahedral column structure, including two embedding grooves 1123 and two through-holes 1124 , which are alternately located on the four side walls. The embedding grooves 1123 and the through-holes 1124 are located at the same horizontal position of the liquid metal pumping pipe 112 .

[0071] In this embodiment, an air inlet pipe 1111 and an air outlet 1112 are provided on the pump cover 111. The air outlet end of the air inlet pipe 1111 is located inside the pump housing 117 and is arranged corresponding to the magnet 115. The air inlet pipe 1111 is used to input cooling gas into the pump, and the air outlet 1112 is used to discharge the hot air in the pump.

[0072] In this embodiment, the machine-side furnace further includes a power supply 300 . The power supply 300 is disposed outside the furnace body 200 . The power supply 300 is used to supply power to the first electrode 113 and the second electrode 114 .

[0073] During actual use, the wire connected to the power source 300 enters the pump through the air outlet 1112 and is connected to the first electrode 113 and the second electrode 114 .

[0074] In this embodiment, the adapter 130 is detachably connected to the infusion tube 120 and the discharge port 1122 of the electromagnetic pump 110 .

[0075] In this embodiment, the machine-side furnace also includes a furnace cover 400 and a radiation heating tube 410. The furnace cover 400 is arranged above the furnace chamber 210 and covers the furnace body 200. The radiation heating tube 410 is arranged on the furnace cover 400. The radiation heating tube 410 is used to achieve heating and insulation of the metal liquid in the furnace.

[0076] In this embodiment, the furnace chamber 210 includes a main chamber 211 and a secondary chamber 212 . The main chamber 211 and the secondary chamber 212 are connected via a soup outlet channel 213 . A soup outlet 220 is formed above the secondary chamber 212 . The electromagnetic pump 110 is located in the secondary chamber 212 .

[0077] In this embodiment, the furnace body 200 further forms a soup adding port 230 , which is in communication with the furnace chamber 210 .

[0078] During actual use, the liquid metal adding port 230 is communicated with the main chamber 211 , and liquid metal is added into the main chamber 211 .

[0079] In this embodiment, the infusion tube 120 includes an infusion portion 121 and a liquid outlet portion 122. The infusion portion 121 is horizontally arranged, and the liquid outlet portion 122 is connected to the end of the infusion portion 121 away from the adapter 130. The liquid outlet portion 122 is tilted upward to ensure that there is always metal liquid in the infusion portion 121.

[0080] In actual use, the machine-side furnace can also be used as a heat preservation furnace, and gas heating can also be used to keep the metal liquid warm.

[0081] The process of using the machine-side furnace provided in this application includes:

[0082] Install the electromagnetic pump 110 at the outlet 220 of the side furnace, adjust the height of the molten aluminum infusion pipe 120 to an appropriate position according to the height of the die-casting machine material cup, preheat the electromagnetic pump 110 at the outlet 220 for a certain period of time to raise the temperature of the infusion pipe 120 to the point where the aluminum liquid can flow normally, and then start quantitative pouring as needed.

[0083] Example 2

[0084] The difference between this embodiment and embodiment 1 is that heating elements are respectively provided on the liquid delivery pipe 120 and the liquid metal pumping pipe 112 of this embodiment, and the heating elements are used to prevent the temperature of the pumped liquid metal from decreasing.

[0085] In this embodiment, the heating element on the infusion tube 120 is arranged below the infusion tube 120, and the heating element can be a heating wire.

[0086] The above description is only a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformation made by using the contents of the description and drawings of the present invention, directly or indirectly applied in other related technical fields, is also included in the scope of protection of the present invention.

Claims

1. A machine-side furnace for quantitative pouring of molten metal, characterized in that: It includes a quantitative infusion device and a furnace body, wherein the quantitative infusion device includes an electromagnetic pump, an infusion tube and an adapter; The furnace body is formed with a furnace and a soup outlet; The electromagnetic pump has a pump cover, which is clamped on the soup outlet. The suction port of the electromagnetic pump is located in the furnace. The discharge port of the electromagnetic pump is used to connect with the adapter outside the furnace, and the other end of the adapter is connected to the infusion tube.

2. A machine-side furnace for quantitative pouring of molten metal according to claim 1, characterized in that: The electromagnetic pump further comprises a liquid metal pumping pipe, a first electrode, a second electrode, a magnet, an excitation coil, and a pump housing connected to the pump cover, wherein the pump housing is located inside the furnace; The liquid metal pumping pipe is installed on the pump housing, and the two ends are the suction port and the discharge port respectively; The first electrode and the second electrode are respectively provided on two opposite side walls of the liquid metal pumping pipe, and the first electrode and the second electrode are used to contact the liquid metal in the liquid metal pumping pipe and provide current to the liquid metal; The two ends of the magnet are respectively located beside the two opposite side walls of the liquid metal pumping pipe and are arranged perpendicular to the first electrode and the second electrode; The excitation coil is wound around the magnet and its two ends are connected to the first electrode and the second electrode respectively; The first electrode and the second electrode are used to be connected to the positive electrode and the negative electrode of the power supply respectively.

3. A machine-side furnace for quantitative pouring of molten metal as claimed in claim 2, characterized in that: The excitation coil is connected in series with the first electrode and the second electrode respectively; The magnet includes an iron core portion, and an excitation coil is wound around the outer periphery of the iron core portion; An embedding groove is formed on the outer side wall of the liquid metal pumping pipe, and the end of the iron core is located in the embedding groove.

4. A machine-side furnace for quantitative pouring of molten metal as claimed in claim 2, characterized in that: An air inlet pipe and an air outlet are provided on the pump cover. The air outlet end of the air inlet pipe is located inside the pump housing and is arranged corresponding to the magnet. The air inlet pipe is used to input cooling gas into the pump, and the air outlet is used to discharge hot air in the pump.

5. A machine-side furnace for quantitative pouring of molten metal as claimed in claim 2, characterized in that: The machine-side furnace further includes a power supply, which is arranged outside the furnace body and is used to supply power to the first electrode and the second electrode.

6. A machine-side furnace for quantitative pouring of molten metal as claimed in claim 1, characterized in that: The adapter is detachably connected to the liquid infusion tube and the discharge port of the electromagnetic pump respectively.

7. A machine-side furnace for quantitative pouring of molten metal as claimed in claim 1, characterized in that: The machine-side furnace further comprises a furnace cover and a radiation heating tube. The furnace cover is arranged above the furnace chamber and covers the furnace body, and the radiation heating tube is arranged on the furnace cover.

8. A machine-side furnace for quantitative pouring of molten metal as claimed in claim 1, characterized in that: The furnace chamber includes a main chamber and a slave chamber, the main chamber and the slave chamber are connected through a soup outlet channel, the soup outlet is formed above the slave chamber, and the electromagnetic pump is located in the slave chamber.

9. A machine-side furnace for quantitative pouring of molten metal as claimed in claim 1, characterized in that: The furnace body is further formed with a soup adding port, which is communicated with the furnace.

10. A machine-side furnace for quantitative pouring of molten metal according to claim 1, characterized in that: The infusion tube includes an infusion part and a liquid outlet part. The infusion part is arranged horizontally. The liquid outlet part is communicated with an end of the infusion part away from the adapter and is arranged upwardly inclined.

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