Aluminum alloy melting furnace

Abstract

The present invention relates to the technical field of aluminum alloy processing equipment, and in particular to an aluminum alloy melting furnace, wherein a crucible for carrying aluminum alloy is placed in the melting furnace, and a crucible cover for covering the crucible is installed under the furnace cover; a discharge port is formed on the top of the crucible cover for pouring out the aluminum liquid in the crucible after the melting furnace is tipped over, and the discharge port is placed at the radial eccentricity of the crucible cover, and a discharge channel is provided on the furnace cover, the bottom end of the discharge channel is connected to the discharge port, and the top end extends to the top of the furnace cover, and a valve mechanism for controlling the internal on-off of the discharge channel is installed on the discharge channel; a casting forming mold is installed on the bottom plate, and a guide channel for introducing aluminum liquid into the casting mold is installed on the casting forming mold, and the melting furnace is tipped over so that the top end of the discharge channel is connected to the top end of the guide channel. With the cooperation of the above-mentioned mechanisms, the automatic pouring of aluminum liquid is realized, which greatly reduces the labor intensity and safety risks of the operators.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy processing equipment, and in particular to an aluminum alloy melting and casting furnace. Background Art

[0002] In the field of aluminum alloy processing, aluminum alloy melting and casting furnaces, as key equipment, undertake the important task of melting aluminum alloy raw materials and casting them into shapes. However, traditional aluminum alloy melting and casting furnaces have certain limitations in design and function, especially in the pouring of molten aluminum.

[0003] Most of the existing aluminum alloy melting and casting furnaces use a simple mechanical assistance method to achieve the pouring of molten aluminum. This method is not only inefficient, but also has safety hazards. Some aluminum alloy melting and casting furnaces require operator assistance during use, which is not only labor-intensive, but also prone to burns or other safety accidents due to improper operation. In addition, when pouring, the existing aluminum alloy melting and casting furnaces often find it difficult to ensure the uniformity and accuracy of the pouring of molten aluminum, which affects the quality of subsequent casting products.

[0004] In addition, although some aluminum alloy melting and casting furnaces have achieved mechanized operation, due to unreasonable structural design or imperfect control system, the aluminum liquid pouring process is still unstable and discontinuous, which not only affects production efficiency but also increases energy consumption and production costs. Therefore, an aluminum alloy melting and casting furnace is provided to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide an aluminum alloy melting and casting furnace in view of the deficiencies in the prior art, so as to solve the technical problem that the existing aluminum alloy melting and casting furnace cannot automatically pour out the aluminum liquid.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] An aluminum alloy melting and casting furnace comprises a bottom plate and a support frame mounted on the bottom plate, and further comprises a rotating frame and a rotating shaft arranged beside the rotating frame and with its axis arranged transversely, the rotating shaft being rotatably arranged on the support frame, a melting furnace for melting aluminum alloy into aluminum liquid and a furnace cover for covering the melting furnace being mounted on the rotating frame, the furnace cover being movably mounted on the rotating frame; the support frame is equipped with a control mechanism for driving the rotation speed to control the tilting and straightening of the melting furnace;

[0008] A crucible for carrying aluminum alloy is placed in the melting furnace, and a crucible cover for covering the crucible is installed under the furnace cover; a discharge port is formed on the top of the crucible cover for pouring out the aluminum liquid in the crucible after the melting furnace is tilted, and the discharge port is placed at the radial eccentricity of the crucible cover, and a discharge channel is provided on the furnace cover, the bottom end of the discharge channel is connected with the discharge port, and the top end extends to the top of the furnace cover, and a valve mechanism for controlling the internal on-off of the discharge channel is installed on the discharge channel; a casting mold is installed on the bottom plate, and a guide channel for introducing aluminum liquid into the interior for casting is installed on the casting mold, and the melting furnace is tilted so that the top end of the discharge channel is connected to the top end of the guide channel.

[0009] The beneficial effects of the present invention are as follows: when in use, the furnace cover is moved up and down and horizontally on the rotating frame, so that the furnace cover moves away from the top of the melting furnace, so that the aluminum alloy is placed in the crucible in the melting furnace, and then the melting furnace is covered by the furnace cover. At the same time, the crucible cover covers the crucible, and the melting furnace is operated to melt the aluminum alloy into aluminum liquid. When the aluminum alloy in the crucible is completely melted, the control mechanism is operated to drive the rotating shaft to rotate at a specified angle, thereby driving the melting furnace to tip over. After tipping over at the specified angle, the top of the discharge channel is connected to the top of the guide channel, and then the valve mechanism is operated to open the discharge channel. The aluminum liquid in the crucible is guided through the discharge channel and the guide channel to be introduced into the casting mold, and the aluminum liquid is cast into an aluminum profile through the casting mold. After the aluminum liquid is completely poured out, the control mechanism drives the rotating shaft to rotate at a specified angle in the opposite direction, driving the melting furnace to be straightened and reset, so as to facilitate subsequent melting treatment. After the melting furnace is straightened and reset, the discharge channel is closed through the valve mechanism to prevent heat loss and oxidation of the molten aluminum after contact with air.

[0010] With the cooperation of the above mechanisms, the automatic pouring of molten aluminum is realized, which greatly reduces the labor intensity and safety risks of operators. In addition, by controlling the opening and closing of the discharge channel through the valve mechanism, the flow rate and speed of the pouring of molten aluminum can be accurately controlled, which improves the quality and consistency of subsequent casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0012] Figure 2 It is a schematic diagram of the internal structure of the melting furnace of the present invention.

[0013] Figure 3 It is a structural schematic diagram of the fixing mechanism of the present invention.

[0014] Figure 4 It is a partial structural schematic diagram of the fixing mechanism of the present invention.

[0015] Figure 5 It is a schematic structural diagram of the crucible and the crucible cover of the present invention.

[0016] Figure 6 This is an enlarged view of part A of the present invention.

[0017] Figure 7 It is a structural schematic diagram of the valve mechanism of the present invention.

[0018] Figure 8 It is a structural schematic diagram of the stirring mechanism of the present invention.

[0019] Fig. 9 It is a partial structural schematic diagram of the stirring mechanism of the present invention.

[0020] Fig.10 It is a structural schematic diagram of the control mechanism of the present invention.

[0021] Reference numerals include:

[0022] 1. Bottom plate; 2. Support frame; 3. Rotating frame; 4. Rotating shaft;

[0023] 5. Melting furnace; 51. Furnace body; 52. Insulation layer; 53. Refractory layer; 54. Resistance heating element; 55. Insulation layer; 56. Boss; 57. Base;

[0024] 6. Furnace cover; 7. Fixed seat; 8. Rotating seat; 9. Lifting frame;

[0025] 10. crucible; 101. first convex ring; 102. first embedding groove; 103. extension portion; 104. embedding portion; 105. upper sealing ring; 106. lower sealing ring; 107. second convex ring; 108. second embedding groove;

[0026] 11. fixing mechanism; 111. shaft hole; 112. first spline shaft; 113. clamping groove; 114. fixing member; 115. adjusting gear; 116. clamping member; 117. clamping protrusion; 118. slide rail; 119. rack; 1110. connecting frame; 1111. magnetic member; 1112. first electromagnet; 1113. second electromagnet;

[0027] 12. Crucible cover; 121. Liquid discharge port; 13. Material discharge channel; 131. First sealing member;

[0028] 14. Valve mechanism; 141. Valve block; 142. Connecting block; 143. Mounting frame; 144. Electric push rod;

[0029] 15. stirring mechanism; 151. second spline shaft; 152. driving motor; 153. spline shaft sleeve; 154. stirring part; 155. rotating sleeve; 156. sliding frame; 157. bearing; 158. guide rod; 159. first servo motor; 1510. screw rod;

[0030] 16. Casting mold; 17. Material guide channel; 171. Second sealing member;

[0031] 18. Control mechanism; 181. Swing arm; 182. Arc plate; 183. Protruding tooth; 184. Mounting seat; 185. First rotating rod; 186. Second rotating rod; 187. First driven gear; 188. Second driven gear; 189. First transmission gear; 1810. Second transmission gear; 1811. Second servo motor; 1812. Driving gear; 1813. Fixed block; 1814. Guide ring; 19. Cylinder. DETAILED DESCRIPTION

[0032] An aluminum alloy melting and casting furnace of the present invention is described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-2 As shown, an embodiment of an aluminum alloy melting and casting furnace of the present invention includes a bottom plate 1 and a support frame 2 mounted on the bottom plate 1, and also includes a rotating frame 3 and a rotating shaft 4 arranged beside the rotating frame 3 and with its axis arranged transversely, the rotating shaft 4 is rotatably mounted on the supporting frame 2, and under the action of the rotating shaft 4, the rotating frame 3 is rotated around the axis of the rotating shaft 4 on the supporting frame 2. Among them, a melting furnace 5 for melting aluminum alloy into aluminum liquid (aluminum solution) and a furnace cover 6 for covering the melting furnace 5 are mounted on the rotating frame 3, and the furnace cover 6 is movably mounted on the rotating frame 3; the furnace cover 6 can move up and down and transversely on the rotating frame 3, so that the furnace cover 6 moves away from the top of the melting furnace 5, so as to facilitate the aluminum alloy to be placed in the melting furnace 5 for melting treatment.

[0034] Furthermore, a fixed seat 7 is also installed on the rotating frame 3, a rotating seat 8 is rotatably installed on the fixed seat 7, and the axis of rotation of the rotating seat 8 is vertically arranged, and a lifting frame 9 that can move up and down is provided on the rotating seat 8, and the furnace cover 6 is installed on the lifting frame 9; by controlling the lifting frame 9 to move up and down on the rotating seat 8, the furnace cover 6 is driven to move up and down together, and the rotating seat 8 is controlled to rotate around the vertical axis on the fixed seat 7 to drive the furnace cover 6 to deviate from the top of the melting furnace 5. A plurality of vertically arranged cylinders 19 are installed on the rotating seat 8, and the ends of the telescopic rods of the cylinders 19 are fixedly connected to the lifting frame 9; by operating a plurality of cylinders 19 at the same time, the lifting frame 9 can be controlled to freely move up and down on the rotating seat 8.

[0035] A crucible 10 for carrying aluminum alloy is placed in the melting furnace 5, and a crucible cover 12 for covering the crucible 10 is installed under the furnace cover 6; while the furnace cover 6 covers the melting furnace 5, the crucible cover 12 covers the crucible 10, so that the crucible 10 forms a tank structure, which is convenient for pouring out the aluminum liquid after the aluminum alloy is completely melted into aluminum liquid. A discharge port 121 is formed on the top of the crucible cover 12 for pouring out the aluminum liquid in the crucible 10 after the melting furnace 5 is poured out. The discharge port 121 is placed at the radial eccentricity of the crucible cover 12. A discharge channel 13 is provided on the furnace cover 6. The bottom end of the discharge channel 13 is connected to the discharge port 121, and the top end extends to the top of the furnace cover 6. When the aluminum alloy in the crucible 10 is completely melted, the rotating shaft 4 is controlled to rotate counterclockwise (the rotation direction is Figure 1 As a reference, the melting furnace 5 is tilted by rotating a certain angle (which can be 90°), and the crucible 10 is also tilted, so that the aluminum liquid in the crucible 10 can be poured out from the discharge port 121, and finally directed to the outside of the melting furnace 5 through the discharge channel 13. A valve mechanism 14 for controlling the internal on-off of the discharge channel 13 is installed on the discharge channel 13. When pouring liquid, the valve mechanism 14 opens the discharge channel 13. When the aluminum alloy is melted, the discharge channel 13 is closed to prevent heat loss and oxidation of the aluminum liquid after contact with the air. Secondly, by controlling the on-off of the discharge channel 13 through the valve mechanism 14, the flow rate and speed of the pouring of the aluminum liquid can also be accurately controlled, which improves the quality and consistency of subsequent casting.

[0036] In addition, a casting mold 16 is installed on the bottom plate 1, and a guide channel 17 for introducing aluminum liquid into the casting mold 16 for casting is installed on the casting mold 16. After the melting furnace 5 is tilted, the top of the discharge channel 13 is connected to the top of the guide channel 17. After the connection, the valve mechanism 14 is operated to open the discharge channel 13, and the aluminum liquid in the crucible 10 is guided through the discharge channel 13 and the guide channel 17 to be introduced into the casting mold 16. The casting mold 16 is a prior art, and the aluminum liquid can be cast into an aluminum profile. In order to improve the sealing performance of the discharge channel 13 and the guide channel 17 after they are connected, a first seal 131 is provided on the peripheral side of the top end of the discharge channel 13, and a second seal 171 is provided on the peripheral side of the top end of the guide channel 17. After the discharge channel 13 and the guide channel 17 are connected, the first seal 131 and the second seal 171 fit together to prevent the aluminum liquid from leaking from the gap between the discharge channel 13 and the guide channel 17.

[0037] Furthermore, a stirring mechanism 15 is installed on the lifting frame 9 to heat the aluminum profile in the crucible 10 uniformly. The stirring mechanism 15 is operated to immerse the stirring part of the stirring mechanism 15 into the aluminum liquid of the solid-liquid mixture (part of the aluminum alloy is not melted), and then the solid-liquid mixed aluminum liquid is stirred to make the unmelted aluminum alloy uniformly heated, thereby improving the efficiency of aluminum alloy melting. The support frame 2 is equipped with a control mechanism 18 for driving the rotation speed 4 to rotate to control the tipping and straightening of the melting furnace 5. When the aluminum alloy in the crucible 10 is completely melted, the control mechanism 18 is operated to drive the rotating shaft 4 to rotate a specified angle, driving the melting furnace 5 to tip, thereby pouring out the aluminum liquid in the crucible 10. After all the aluminum liquid is poured out, the control mechanism 18 drives the rotating shaft 4 to rotate a specified angle in the opposite direction, driving the melting furnace 5 to straighten and reset, so as to facilitate subsequent melting treatment.

[0038] Furthermore, the melting furnace 5 includes a furnace body 51 and a base 57 arranged at the bottom of the furnace body 51, the inner wall of the furnace body 51 is provided with an insulation layer 52, and a resistance heating element 54 for generating heat energy is installed inside the furnace body 51, and a refractory layer 53 for protecting the insulation layer 52 is provided between the resistance heating element 54 and the insulation layer 52; after the crucible 10 is placed into the furnace body 51 and the furnace cover 6 is covered, the crucible cover 12 covers the crucible 10, and then the resistance heating element 54 is operated. The resistance heating element 54 is a prior art, a resistance wire made of nickel-chromium alloy, iron-chromium-aluminum alloy and other materials. When current passes through the resistance wire, due to the existence of resistance, electrical energy is converted into heat energy, so that the temperature of the resistance wire increases, and the heat is transferred to the aluminum profile in the crucible 10 through thermal radiation, heat conduction and convection, so that it gradually melts. In addition, the heat-insulating layer 52 is protected by the refractory layer 53, and the furnace body 51 is heat-insulated by the heat-insulating layer 52 to prevent heat loss and improve the efficiency of melting the aluminum alloy.

[0039] In addition, a heat insulating layer 55 is installed in the furnace body 51 and is placed on the base 57. A boss 56 for supporting the crucible 10 is provided on the top of the heat insulating layer 55. After the crucible 10 is placed in the furnace body 51, it can be placed on the boss 56. The crucible 10 placed on the boss 56 will not contact the resistance heating element 54, so that the aluminum alloy in the crucible 10 can be evenly heated. A fixing mechanism 11 for fixing the crucible 10 on the boss 56 is provided between the heat insulating layer 55 and the base 57. After the crucible 10 is placed on the boss 56, the fixing mechanism 11 is operated to fix the crucible 10 to prevent the crucible 10 from tipping over during the melting of the aluminum profile. In addition, when the aluminum liquid in the crucible 10 needs to be poured out, the furnace body 51 is controlled to tip over at a certain angle. Under the action of the fixing mechanism 11, the crucible 10 is always fixed on the boss 56. When the crucible 10 needs to be taken out of the furnace body 51 for cleaning and maintenance, the fixing mechanism 11 is operated to remove the crucible 10 .

[0040] like Figure 3-4 As shown, the fixing mechanism 11 includes a first spline shaft 112 installed at the bottom of the crucible 10 and arranged vertically, an axial hole 111 for the first spline shaft 112 to pass through is provided on the insulation layer 55 and the boss 56, a fixing member 114 is provided on the base 57, and an adjusting gear 115 coaxially arranged with the first spline shaft 112 is rotatably provided on the fixing member 114, a ring-shaped clamping member 116 for clamping the first spline shaft 112 passing through the axial hole 111 is coaxially installed on the top of the adjusting gear 115, each spline tooth at the bottom end of the first spline shaft 112 is provided with a clamping groove 113, and the inner side wall of the clamping member 116 is formed with a clamping protrusion 117 that is clamped into the clamping groove 113 after rotation. After the first spline shaft 112 is inserted into the shaft hole 111, the bottom of the crucible 10 is placed on the top of the boss 56, and the bottom end of the first spline shaft 112 passes through the annular clamping piece 116. At this time, the driving adjustment gear 115 is rotated, thereby driving the clamping piece 116 to rotate, so that the clamping protrusion 117 on the inner wall of the clamping piece 116 is clamped into the clamping groove 113, so as to clamp the first spline shaft 112 and stably fix the crucible 10 on the top of the boss 56. In the process of tilting the melting furnace 5 for pouring liquid, the crucible 10 is always fixed on the base 57, thereby improving the effect of pouring out the aluminum liquid.

[0041] In order to drive the adjusting gear 115 to rotate, a slide rail 118 is arranged horizontally and placed beside the adjusting gear 115 on the base 57, and a rack 119 for meshing with the adjusting gear 115 is provided on the slide rail 118 in a horizontally sliding manner; the rack 119 is controlled to slide horizontally on the slide rail 118, so as to drive the adjusting gear 115 to rotate a specified angle, thereby driving the clamping member 116 to rotate at the same time, clamping the clamping protrusion 117 into the clamping slot 113, or disengaging from the clamping slot 113, so as to realize automatic clamping and loosening of the first spline shaft 112.

[0042] Furthermore, a connecting frame 1110 is installed on the back of the rack 119. The connecting frame 1110 is T-shaped and has magnetic suction members 1111 on both ends away from each other. The first electromagnet 1112 and the second electromagnet 1113 are installed on the base 57, which are respectively close to the two ends of the slide rail 118 and are used to attract the magnetic suction member 1111. The first electromagnet 1112 and the second electromagnet 1113 operate alternately. When the first electromagnet 1112 is powered on, the second electromagnet 1113 does not operate. The first electromagnet 1112 generates suction force on the magnetic suction member 1111 opposite to it. Under the action of the suction force, the magnetic suction member 1111 drives the connecting frame 1110 to move in the direction close to the first electromagnet 1112, so as to drive the rack 119 to slide horizontally, and drive the adjustment gear 115 to rotate clockwise (the rotation direction is Figure 3As a reference, the first spline shaft 112 is clamped by the clamping protrusion 117 into the clamping groove 113. On the contrary, when the second electromagnet 1113 is powered on, the first electromagnet 1112 does not operate, and the second electromagnet 1113 generates suction force on the magnetic attraction member 1111 opposite to it, thereby driving the connecting frame 1110 to move in the direction close to the second electromagnet 1113, and the rack 119 drives the adjusting gear 115 to rotate counterclockwise (the rotation direction is Figure 3 The engaging protrusion 117 is disengaged from the engaging groove 113 to release the first spline shaft 112 by rotating the specified angle.

[0043] like Figure 5-6 As shown, a first convex ring 101 is formed on the top surface of the crucible 10, and a first embedding groove 102 for the first convex ring 101 to be embedded in the bottom surface of the crucible cover 12. After the crucible cover 12 is covered on the crucible 10 from top to bottom, the first convex ring 101 is embedded in the first embedding groove 102 to improve the sealing effect between the crucible 10 and the crucible cover 12. An extension portion 103 extending downward is formed on the inner edge of the bottom of the crucible cover 12, an embedding portion 104 embedded with the extension portion 103 is formed on the inner wall of the top of the crucible 10, an upper sealing ring 105 is formed on the inner wall of the bottom of the extension portion 103, and a lower sealing ring 106 matched with the upper sealing ring 105 is formed on the inner wall of the crucible 10. After the extension portion 103 is embedded with the embedding portion 104, the upper sealing ring 105 and the lower sealing ring 106 are fitted and sealed; after the crucible 10 is covered with the crucible cover 12, the sealing performance of the crucible 10 and the crucible cover 12 is improved under the joint action of the upper sealing ring 105 and the lower sealing ring 106 being fitted, the extension portion 103 and the embedding portion 104 being embedded, and the first embedding groove 102 being embedded in the first convex ring 101, so that when the melting furnace 5 is tilted to pour the liquid, the aluminum liquid will not leak out from the gap between the crucible 10 and the crucible cover 12. Additionally, a second convex ring 107 is formed on the top surface of the lower sealing ring 106, and a second embedding groove 108 is formed on the bottom surface of the upper sealing ring 105 for the second convex ring 107 to be embedded in. By providing the second convex ring 107 and the second embedding groove 108, the upper sealing ring 105 and the lower sealing ring 106 can be better sealed after being fitted.

[0044] like Figure 7As shown, the valve mechanism 14 includes a valve block 141 disposed in the discharge channel 13 and used to block it, a connection block 142 is disposed outside the discharge channel 13, one side of the valve block 141 passes through the discharge channel 13 and is fixedly connected to the connection block 142, and a mounting frame 143 is disposed on the discharge channel 13, and an electric push rod 144 is mounted on the mounting frame 143, and the end of the telescopic rod is fixedly disposed with the connection block 142. The initial state of the telescopic rod of the electric push rod 144 is an extended state, and the electric push rod 144 is operated, and the telescopic rod is contracted, which can drive the valve block 141 to move inside the discharge channel 13, so that the discharge channel 13 is connected, and after the melting furnace 5 is tilted, it is convenient to discharge the molten aluminum liquid, and then guide it through the guide channel 17, and guide it to the casting molding mold 16 for casting molding. In addition, when the valve block 141 blocks the discharge channel 13, it can also prevent the aluminum liquid in the crucible 10 from contacting with the air, and prevent the aluminum liquid from being oxidized.

[0045] like Figure 8-9 As shown, the stirring mechanism 15 includes a second spline shaft 151 rotatably set on the lifting frame 9 and arranged vertically, and also includes a driving motor 152 for driving the second spline shaft 151 to rotate. The second spline shaft 151 is sleeved with a spline shaft sleeve 153 that can move up and down. The bottom end of the spline shaft sleeve 153 passes through the furnace cover 6 and the crucible cover 12 to extend into the crucible 10, and a stirring part 154 is installed on the bottom end of the spline shaft sleeve 153. When the aluminum alloy in the crucible 10 is half melted, the spline sleeve 153 is controlled to move downward, so that the stirring part 154 is immersed in the aluminum liquid of the solid-liquid mixture (part of the aluminum alloy is not melted), and the driving motor 152 is operated to drive the second spline shaft 151 to rotate, so as to drive the spline sleeve 153 to rotate, and the solid-liquid mixed aluminum liquid is stirred by the stirring part 154, so that the unmelted aluminum alloy is evenly heated, thereby improving the melting efficiency of the aluminum alloy; when the aluminum alloy is completely melted, the spline sleeve 153 is controlled to move upward, driving the stirring part 154 to separate from the aluminum liquid, and then the melting furnace 5 can be controlled to tilt for pouring. In addition, a rotating sleeve 155 coaxially arranged with the spline sleeve 153 is rotatably provided on the furnace cover 6 and the crucible cover 12, and the spline sleeve 153 and the rotating sleeve 155 are slidably arranged; by setting the rotating sleeve 155, the spline sleeve 153 can not only move up and down on the furnace cover 6 and the crucible cover 12, but also rotate, and it can also prevent heat loss and air entry.

[0046] In order to control the spline sleeve 153 to move up and down, the lifting frame 9 is provided with a vertically arranged guide rod 158, and the guide rod 158 is slidably provided with a sliding frame 156, and the sliding frame 156 is rotatably connected with the spline sleeve 153 through a bearing 157; the lifting frame 9 is also provided with a vertically arranged screw rod 1510 and a first servo motor 159 for driving the screw rod 1510 to rotate, and the screw rod 1510 is threadedly connected with the sliding frame 156. The first servo motor 159 is operated to drive the screw rod 1510 to rotate, so that the sliding frame 156 can be controlled to slide up and down on the guide rod 158, and the sliding frame 156 drives the spline sleeve 153 to move up and down; by providing the bearing 157, the spline sleeve 153 can rotate on the sliding frame 156 while the sliding frame 156 drives the spline sleeve 153 to move.

[0047] like Fig.10 As shown, the control mechanism 18 includes a swing arm 181, one end of which is fixed to the rotating shaft 4, and an arc plate 182 is installed on the other end of the swing arm 181. The length direction of the swing arm 181 is perpendicular to the axis of the rotating shaft 4, and the forming trajectory of the arc plate 182 itself is consistent with the activity trajectory of the swing arm 181 driven by the rotating shaft 4 to swing; when the rotating shaft 4 rotates, it drives the swing arm 181 to swing around the axis of the rotating shaft 4, and at the same time drives the arc plate 182 to swing together.

[0048] However, in order to control the rotation of the rotating shaft 4, a plurality of convex teeth 183 are provided on the two arc-shaped sides opposite to each other of the arc-shaped plate 182, and the convex teeth 183 are arranged in an evenly spaced row along the swing trajectory of the swing arm 181. The support frame 2 is provided with a mounting seat 184, and a first rotating rod 185 and a second rotating rod 186 are rotatably provided on the mounting seat 184, whose axis line is parallel to the axis line of the rotating shaft 4 and are respectively arranged on both sides of the arc-shaped plate 182. The first rotating rod 185 is provided with a first driven gear 187 meshing with the convex teeth 183 arranged on one side of the arc-shaped plate 182, and the second rotating rod 186 is provided with a second driven gear 188 meshing with the convex teeth 183 arranged on the other side of the arc-shaped plate 182. The arc plate 182 passes through between the first driven gear 187 and the second driven gear 188, and the convex teeth 183 on the two arc edges are respectively engaged with the first driven gear 187 and the second driven gear 188. When the first driven gear 187 and the second driven gear 188 are driven to rotate simultaneously in different directions, the arc plate 182 is driven to continuously pass between the first driven gear 187 and the second driven gear 188, so as to generate a pulling force on the end of the swing arm 181 away from the rotating shaft 4, thereby pulling the swing arm 181 to swing (the swing angle can be 90°), driving the rotating shaft 4 to rotate counterclockwise (the rotation direction is Fig.10As a reference, the first driven gear 187 and the second driven gear 188 are rotated (rotated 90°) to tilt the melting furnace 5, so that the discharge channel 13 is connected to the guide channel 17 for pouring. When the first driven gear 187 and the second driven gear 188 are driven to rotate in the opposite direction (the rotation direction is opposite to the above, and the rotation directions of the two are still different), the arc plate 182 is pushed to continuously withdraw from between the first driven gear 187 and the second driven gear 188, thereby generating a thrust on the end of the swing arm 181 away from the rotating shaft 4, pushing the swing arm 181 to reset, and driving the rotating shaft 4 to rotate clockwise (the rotation direction is opposite to the above). Fig.10 The melting furnace 5 is rotated based on the reference (as a reference) to reset and straighten the melting furnace 5, so as to facilitate the subsequent melting process of the aluminum alloy.

[0049] In addition, in order to drive the first driven gear 187 and the second driven gear 188 to rotate simultaneously in different directions, a first transmission gear 189 is also installed on the first rotating rod 185, and a second transmission gear 1810 is also installed on the second rotating rod 186. The first transmission gear 189 and the second transmission gear 1810 are meshed. When the first driven gear 187 or the second driven gear 188 is driven to rotate, the first driven gear 187 and the second driven gear 188 are rotated simultaneously in different directions under the transmission action of the first transmission gear 189 and the second transmission gear 1810. A second servo motor 1811 is also mounted on the mounting base 184. A driving gear 1812 is disposed on the output shaft of the second servo motor 1811. The driving gear 1812 meshes with the second driven gear 188 (or the first driven gear 187). The second servo motor 1811 is operated to drive the second driven gear 188 (or the first driven gear 187) to rotate through the driving gear 1812, which then cooperates with the convex teeth 183 on the arc plate 182, thereby applying a thrust or a pull to the swing arm 181, so as to control the melting furnace 5 to pour liquid or to straighten and reset.

[0050] In addition, the support frame 2 is provided with a fixed block 1813, and the fixed block 1813 is provided with a guide ring 1814 whose center line is coaxially arranged with the axis line of the rotating shaft 4, and the middle part of the swing arm 181 is slidably arranged with the guide ring 1814; when the swing arm 181 is controlled to swing, it slides on the guide ring 1814, and the swing arm 181 is guided by the guide ring 1814, so that the swing arm 181 is more stable when swinging.

[0051] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0052] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. An aluminum alloy melting and casting furnace, characterized in that: A bottom plate (1) and a support frame (2) mounted on the bottom plate (1), further comprising a rotating frame (3) and a rotating shaft (4) arranged beside the rotating frame (3) and arranged with its axis transversely, the rotating shaft (4) being rotatably mounted on the support frame (2), a melting furnace (5) for melting aluminum alloy into aluminum liquid and a furnace cover (6) for covering the melting furnace (5) being mounted on the rotating frame (3), the furnace cover (6) being movably mounted on the rotating frame (3); the support frame (2) being equipped with a control mechanism (18) for driving the rotation speed (4) to rotate so as to control the tilting and straightening of the melting furnace (5); A crucible (10) for carrying aluminum alloy is placed in the melting furnace (5), and a crucible cover (12) for covering the crucible (10) is installed below the furnace cover (6); a discharge port (121) is formed on the top of the crucible cover (12) for pouring out the aluminum liquid in the crucible (10) after the melting furnace (5) is poured out, and the discharge port (121) is located at a radial eccentric position of the crucible cover (12); a discharge channel (13) is provided on the furnace cover (6), and the bottom end of the discharge channel (13) is connected to the discharge port (121). The liquid port (121) is connected and arranged, and the top end extends to the top of the furnace cover (6); the discharge channel (13) is provided with a valve mechanism (14) for controlling the internal on-off thereof; a casting forming mold (16) is provided on the bottom plate (1), and a guide channel (17) for guiding aluminum liquid into the inside thereof for casting is provided on the casting forming mold (16); the melting furnace (5) is tilted so that the top end of the discharge channel (13) is connected and communicated with the top end of the guide channel (17).

2. The aluminum alloy melting and casting furnace according to claim 1, characterized in that: The melting furnace (5) comprises a furnace body (51) and a base (57) arranged at the bottom of the furnace body (51); a heat-insulating layer (52) is arranged on the inner wall of the furnace body (51), and a resistance heating element (54) for generating heat energy is arranged inside the furnace body (51); a refractory layer (53) for protecting the heat-insulating layer (52) is arranged between the resistance heating element (54) and the heat-insulating layer (52); a heat-insulating layer (55) arranged above the base (57) is also arranged in the furnace body (51); a boss (56) for supporting a crucible (10) is arranged on the top of the heat-insulating layer (55); and a fixing mechanism (11) for fixing the crucible (10) on the boss (56) is arranged between the heat-insulating layer (55) and the base (57).

3. The aluminum alloy melting and casting furnace according to claim 2, characterized in that: The fixing mechanism (11) comprises a first spline shaft (112) installed at the bottom of the crucible (10) and arranged vertically, an axial hole (111) for the first spline shaft (112) to pass through is provided on the heat insulation layer (55) and the boss (56), a fixing member (114) is provided on the base (57), and an adjusting gear (115) coaxially arranged with the first spline shaft (112) is rotatably provided on the fixing member (114), a ring-shaped clamping member (116) for clamping the first spline shaft (112) passing through the axial hole (111) is coaxially installed on the top of the adjusting gear (115), each spline tooth at the bottom end of the first spline shaft (112) is provided with a clamping groove (113), and the inner side wall of the clamping member (116) is formed with a clamping protrusion (117) that is clamped into the clamping groove (113) after rotation.

4. The aluminum alloy melting and casting furnace according to claim 3, characterized in that: A slide rail (118) is disposed on the base (57) and is arranged transversely and placed beside the adjusting gear (115). A rack (119) is disposed on the slide rail (118) in a transversely sliding manner and is used to mesh with the adjusting gear (115). A connecting frame (1110) is disposed on the back of the rack (119). The connecting frame (1110) is T-shaped and has magnetic attracting members (1111) disposed at both ends away from each other. A first electromagnet (1112) and a second electromagnet (1113) are disposed on the base (57) and are respectively close to both ends of the slide rail (118) and are used to attract the magnetic attracting member (1111).

5. The aluminum alloy melting and casting furnace according to claim 1, characterized in that: The top surface of the crucible (10) is formed with a first convex ring (101), the bottom surface of the crucible cover (12) is formed with a first embedding groove (102) for the first convex ring (101) to be embedded, the inner edge of the bottom of the crucible cover (12) is formed with an extension portion (103) extending downward, the inner side wall of the top of the crucible (10) is formed with an embedding portion (104) embedded with the extension portion (103), an upper sealing ring (105) is formed on the inner side wall of the bottom of the extension portion (103), and a lower sealing ring (106) for sealing with the upper sealing ring (105) is formed on the inner side wall of the crucible (10); the top surface of the lower sealing ring (106) is formed with a second convex ring (107), and the bottom surface of the upper sealing ring (105) is formed with a second embedding groove (108) for the second convex ring (107) to be embedded.

6. The aluminum alloy melting and casting furnace according to claim 1, characterized in that: The valve mechanism (14) comprises a valve block (141) arranged in the discharge channel (13) and used for blocking the discharge channel; a connecting block (142) is arranged outside the discharge channel (13); one side of the valve block (141) passes through the discharge channel (13) and is fixedly connected to the connecting block (142); a mounting frame (143) is arranged on the discharge channel (13); and an electric push rod (144) is mounted on the mounting frame (143) and is fixedly arranged at the end of a telescopic rod and the connecting block (142).

7. The aluminum alloy melting and casting furnace according to claim 1, characterized in that: A stirring mechanism (15) is installed on the lifting frame (9) to uniformly heat the aluminum profile in the crucible (10); the stirring mechanism (15) comprises a second spline shaft (151) rotatably mounted on the lifting frame (9) and arranged vertically, and also comprises a driving motor (152) for driving the second spline shaft (151) to rotate; a spline shaft sleeve (153) that can move up and down is sleeved on the second spline shaft (151); the bottom end of the spline shaft sleeve (153) passes through the furnace cover (6) and the crucible cover (12) to extend into the crucible (10), and a stirring portion (154) is installed on the bottom end of the spline shaft sleeve (153); the furnace cover (6) A rotating sleeve (155) coaxially arranged with the spline sleeve (153) is rotatably provided on the lifting frame (9) and the crucible cover (12), and the spline sleeve (153) and the rotating sleeve (155) are slidably provided; the lifting frame (9) is provided with a vertically arranged guide rod (158), and the guide rod (158) is slidably provided with a sliding frame (156), and the sliding frame (156) is rotatably connected to the spline sleeve (153) through a bearing (157); the lifting frame (9) is also provided with a vertically arranged screw rod (1510) and a first servo motor (159) for driving the screw rod (1510) to rotate, and the screw rod (1510) is threadedly connected to the sliding frame (156).

8. The aluminum alloy melting and casting furnace according to claim 1, characterized in that: The control mechanism (18) comprises a swing arm (181) having one end fixedly arranged on the rotating shaft (4), and an arc plate (182) is mounted on the other end of the swing arm (181). The length direction of the swing arm (181) is perpendicular to the axis of the rotating shaft (4), and the forming track of the arc plate (182) itself is consistent with the moving track of the swing arm (181) driven by the rotating shaft (4). A plurality of convex teeth (183) are arranged on two arc sides opposite to each other, and the convex teeth (183) are arranged in a row at equal distances along the moving track of the swing arm (181). The support frame (2) is provided with a mounting seat (184), and a first rotating rod (185) and a second rotating rod (186) are rotatably provided on the mounting seat (184), and the first rotating rod (185) and the second rotating rod (186) are respectively arranged on both sides of the arc plate (182) and have an axis line parallel to the axis line of the rotating shaft (4). The first rotating rod (185) is provided with a first driven gear (187) meshing with a convex tooth (183) arranged on one side of the arc plate (182), and the second rotating rod (186) is provided with a second driven gear (188) meshing with a convex tooth (183) arranged on the other side of the arc plate (182).

9. The aluminum alloy melting and casting furnace according to claim 8, characterized in that: The first rotating rod (185) is provided with a first transmission gear (189), the second rotating rod (186) is provided with a second transmission gear (1810), and the first transmission gear (189) and the second transmission gear (1810) are meshed; the mounting seat (184) is provided with a second servo motor (1811), the output shaft of the second servo motor (1811) is provided with a driving gear (1812), and the driving gear (1812) is meshed with a second driven gear (188).

10. The aluminum alloy melting and casting furnace according to claim 1, characterized in that: A fixed seat (7) is also mounted on the rotating frame (3), a rotating seat (8) is rotatably mounted on the fixed seat (7), and the axis of rotation of the rotating seat (8) is vertically arranged; a lifting frame (9) that can move up and down is mounted on the rotating seat (8), and the furnace cover (6) is mounted on the lifting frame (9); a plurality of vertically arranged cylinders (19) are mounted on the rotating seat (8), and the ends of the telescopic rods of the cylinders (19) are fixedly connected to the lifting frame (9).

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