A zinc-copper alloy ingot component homogenization smelting and casting device

Abstract

This invention belongs to the field of non-ferrous alloy smelting and casting technology, and discloses a zinc-copper alloy ingot homogenization smelting and casting device, including an automatic aligning mechanism, a transfer casting mechanism, and a rotating support mechanism. The automatic aligning mechanism includes a base, multiple vertically sliding movable frames, and a casting mold rotatably mounted on the movable frames. The transfer casting mechanism includes a casting tank, a conveying pipe, and a transfer tank. The transfer tank is used to temporarily store the zinc-copper alloy molten liquid output from the casting tank and supplies liquid to the lower end of the casting mold through the bottom discharge end. After receiving liquid, the casting mold drives the movable frames to move downward. The downward movement of the movable frames gradually changes the casting mold from an inclined liquid-bearing posture to a horizontal forming posture. When the movable frames continue to move downward, the extrusion column drives the switching mechanism to change the effective transmission radius of the active and driven cone wheels, thereby reducing the return speed of the casting mold at the rear. This helps to reduce the risks of initial impact of zinc-copper alloy molten liquid, oxide film entrapment, uneven casting, and overflow.

Description

Technical Field

[0001] This invention belongs to the field of non-ferrous alloy smelting and casting technology, and particularly relates to a zinc-copper alloy ingot composition homogenization smelting and casting device. Background Technology

[0002] Zinc-copper alloy ingots are typically used for subsequent rolling, extrusion, remelting, or calendering processes. The internal composition distribution, surface oxide films, and localized dezincification of the ingot billet can affect the stability of subsequent processing. In zinc-copper alloy melts with high zinc content, thin films containing zinc oxide and copper oxide easily form on the surface of the melt. When the casting process uses a top ladle to pour directly onto the ingot mold, the liquid flow forms a long, thin column under a large drop and impacts the bottom of the ingot mold. After the liquid column collides with the mold bottom, it is easy to roll up, and the formed oxide film will be folded into the interior of the melt. After cooling, it forms thin sheet-like films, white-gray interlayers, copper-rich hard spots, or areas of uneven color.

[0003] In batch casting of zinc-copper alloy ingots, multiple ingot molds are typically arranged circumferentially along the equipment, and the casting jar needs to supply molten metal to different ingot molds sequentially. If the molten metal in the casting jar enters the ingot mold directly through the gate, the static pressure, liquid level, and outlet flow rate of the molten metal at different casting stages will vary with the remaining volume in the casting jar. The inconsistent liquid flow state received by the ingot molds can easily lead to different liquid surface spreading paths for the same batch of ingots. Especially when the ingot mold is initially hollow, if the first stream of molten metal directly impacts the mold cavity, it will create a local impact zone near the low-temperature mold wall. Subsequent molten metal will then push this area further out, increasing the risk of oxide film inclusion and local segregation. Summary of the Invention

[0004] The purpose of this invention is to provide a zinc-copper alloy ingot homogenization smelting and casting device, which improves the problems of impact rollover, oxide film entrapment, uneven casting and overflow that easily occur when zinc-copper alloy molten liquid falls directly into the ingot mold from the casting bucket, and enables multiple casting molds to obtain a relatively stable liquid inlet state and liquid receiving posture during continuous casting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A zinc-copper alloy ingot composition homogenization smelting and casting device includes: an automatic aligning mechanism including a base, on which multiple movable frames are slidably mounted, and a casting mold is disposed on each movable frame; and a transfer casting mechanism including a casting bucket and a transfer bucket connected by a conveying pipe; wherein the transfer bucket is used to receive and temporarily store the molten liquid output from the casting bucket, and to guide the molten liquid into the casting mold of the automatic aligning mechanism, so that the molten liquid enters the casting mold after being buffered by the transfer bucket. At the same time, the weight of the molten liquid drives the movable frames to move downward relative to the base, and the casting mold rotates as the movable frames move downward, so that the casting mold gradually adjusts from an inclined liquid-receiving posture to a horizontal forming posture during the casting process, reducing uneven pouring and overflow.

[0007] According to some embodiments, the automatic alignment mechanism further includes: a second transmission rod, rotatably mounted inside the base, on which a rotating column with a track groove on its surface is fixedly mounted; a connecting cylinder, fixedly mounted at the bottom end of the movable frame, with a movable protrusion fixedly mounted inside, the movable protrusion extending into the track groove and slidingly engaging with the track groove; and a third spring, located inside the connecting cylinder, one end of which is rotatably connected to the connecting cylinder, and the other end of which is rotatably connected to the rotating column.

[0008] According to some embodiments, the automatic alignment mechanism further includes: a rotating tube rotatably mounted inside the base, on which a first transmission rod rotatably connected to the movable frame is slidably mounted; a second bevel gear fixedly mounted on the first transmission rod; a first rotating shaft rotatably mounted on the movable frame and fixedly connected to the casting mold; and a first bevel gear fixedly mounted on the first rotating shaft and meshing with the second bevel gear.

[0009] According to some embodiments, the automatic alignment mechanism further includes: two active conical wheels slidably mounted on the second transmission rod and forming an active belt groove with respect to each other; two driven conical wheels slidably mounted on the rotating tube and forming a driven belt groove with respect to each other; and a transmission belt wound between the active belt groove and the driven belt groove to transmit the rotation of the second transmission rod to the rotating tube, thereby driving the first transmission rod to rotate and causing the casting mold to flip and adjust.

[0010] According to some embodiments, a switching mechanism is also included, the switching mechanism comprising: two positive and negative screws, both rotatably mounted inside the base, with movable plates threaded to both ends of each screw; the movable plate located at the active cone wheel is rotatably connected to the active cone wheel, and the movable plate located at the driven cone wheel is rotatably connected to the driven cone wheel; and two spur gears, respectively fixedly mounted on the two positive and negative screws.

[0011] According to some embodiments, the automatic alignment mechanism further includes: a sliding plate, which is slidably mounted on the base and fixedly connected to the connecting cylinder; and a pressing column, which is fixedly mounted on the bottom end of the sliding plate.

[0012] According to some embodiments, the switching mechanism further includes: a slide rod, fixedly installed inside the base, on which a movable block is slidably mounted; a second spring, sleeved on the slide rod, one end of which is fixedly connected to the movable block and the other end of which is fixedly connected to the base; and two racks, respectively fixedly installed on both sides of the movable block and respectively meshing with two spur gears.

[0013] According to some embodiments, the intermediate casting mechanism further includes: a rotating frame, rotatably installed inside the base and fixedly connected to the casting barrel; and a fixed plate, fixedly installed on the conveying pipe and connected to the intermediate barrel via a first spring.

[0014] According to some embodiments, the intermediate casting mechanism further includes: a first valve, fixedly installed on the conveying pipe; and a second valve, fixedly installed on the intermediate barrel.

[0015] According to some embodiments, a rotating support mechanism is also included, the rotating support mechanism comprising: a base, fixedly connected to the pedestal, wherein a motor is fixedly installed inside; and a drive shaft, one end of which is fixedly connected to the power output shaft of the motor, and the other end of which is fixedly connected to the rotating frame.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. This invention forms a liquid supply path that first temporarily stores the liquid and then discharges it through a casting bucket, a delivery pipe, and a transfer bucket. After the first valve is closed, the molten liquid in the transfer bucket is supplied to the casting mold with a relatively independent storage volume. The discharge process is not directly affected by the continuous drop in the liquid level in the casting bucket. The molten liquid is first buffered by the transfer bucket and then enters the lower position of the casting mold. The drop in liquid column and the fluctuation of outlet pressure are constrained. The tendency of the liquid flow to roll up after impacting the bottom of the mold is reduced, which helps to reduce the oxide film folding into the melt and the resulting film, white-gray interlayer, and uneven color.

[0018] 2. In this invention, the casting mold is supported by a movable frame, and the connecting cylinder moves downward with the weight of the liquid. The movable protrusion slides along the track groove on the surface of the rotating column, so that the vertical displacement caused by the increase in the amount of liquid is converted into the rotation of the second transmission rod. Then, it is transmitted to the first rotating shaft through the conical wheel transmission, the rotating tube, the first transmission rod and the conical gear. During the process of the molten liquid entering, the casting mold gradually changes from the inclined posture of receiving liquid at the lower end to the horizontal posture. The molten liquid can spread along the lower part of the mold cavity to the middle and the far end, reducing the uneven pouring and overflow caused by the overall surge after single-point accumulation.

[0019] 3. In this invention, the sliding plate and extrusion column push the moving block as the moving frame continues to move downward. The moving block drives the racks on both sides to move. The racks drive two spur gears and positive and negative screws to rotate in opposite directions, changing the relative distance between the driving and driven cone wheels and adjusting the effective radius of the transmission belt. The casting mold obtains a faster return-to-center spreading action in the early stage of liquid receiving and a slower return-to-center buffering action in the later stage of liquid receiving. This can adapt to the filling process where the inertia of the melt changes with the increase of the amount of liquid received.

[0020] 4. This invention uses a motor inside the base to drive the drive shaft and rotating frame to rotate, so that the casting barrel, delivery pipe and transfer barrel can correspond to multiple casting molds in sequence. When the transfer barrel is full of liquid, it moves downward under the weight to shorten the liquid outlet distance between it and the casting mold. After the liquid outlet decreases, it moves upward under the action of the first spring to avoid the casting mold that is being gradually straightened. This spatial arrangement keeps the relative position of the liquid supply part and the liquid receiving part within a suitable range for liquid outlet during the multi-station continuous casting process. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a cross-sectional view of the rotating support mechanism of the present invention.

[0024] Figure 3 This is a schematic diagram of the installation structure of the automatic alignment mechanism and switching mechanism of the present invention within the base.

[0025] Figure 4 This is a schematic diagram of the cooperative structure of the casting mold and the movable frame of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the slide plate and extrusion column of the present invention.

[0027] Figure 6 This is a schematic diagram of the mating structure of the connecting cylinder and the rotating column of the present invention.

[0028] Figure 7 This is a schematic diagram of the cooperative structure of the driving cone wheel and the driven cone wheel of the present invention.

[0029] Figure 8 This is a schematic diagram of the cooperative structure of the moving block, rack, second spring, and slide bar of the present invention.

[0030] Figure 9 This is a schematic diagram of the rotating frame, casting barrel, and conveying pipe of the present invention.

[0031] Figure 10 This is a schematic diagram of the internal structure of the transfer barrel in this invention.

[0032] Reference numerals: 100, Rotary support mechanism; 101, Base; 102, Drive shaft; 103, Motor; 110, Automatic alignment mechanism; 111, Base; 112, Casting mold; 113, First bevel gear; 114, Second bevel gear; 115, Moving frame; 116, First transmission rod; 117, Slide plate; 118, Extrusion column; 119, Connecting cylinder; 1191, Moving protrusion; 1192, Rotating column; 1193, Second transmission rod; 1194, Rotating tube; 1195, Active... 1196. Conical wheel; 1197. Drive belt; 1198. First rotating shaft; 1199. Driven conical wheel; 120. Transfer casting mechanism; 121. Rotating frame; 122. Casting barrel; 123. Conveying pipe; 124. First valve; 125. Fixed plate; 126. First spring; 127. Transfer barrel; 128. Second valve; 130. Switching mechanism; 131. Moving plate; 132. Positive and negative screws; 133. Spur gear; 134. Moving block; 135. Rack; 136. Second spring; 137. Slide rod. Detailed Implementation

[0033] To make the above-mentioned objects, features, and advantages of the present invention more readily understood, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0034] This invention is described in detail with reference to the accompanying drawings. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not to scale. Furthermore, the accompanying drawings are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0035] Furthermore, it should be noted in the description of this invention that the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Example 1: As Figure 1 , Figure 3 , Figure 9 and Figure 10As shown, this embodiment provides a zinc-copper alloy ingot homogenization smelting and casting device, including an automatic aligning mechanism 110 and a transfer casting mechanism 120. The automatic aligning mechanism 110 includes a base 111, on which multiple vertically sliding movable frames 115 are arranged circumferentially. Each movable frame 115 is equipped with a casting mold 112. In the empty mold state, the casting mold 112 can maintain an inclined liquid-receiving posture with one end lower and the other end higher. Its lower end is located below the discharge direction of the transfer tank 127, and its higher end is located at the end of the molten liquid spreading. The transfer casting mechanism 120 includes a casting tank 122, a conveying pipe 123, and a transfer tank 127. The conveying pipe 123 connects the casting tank 122 and the transfer tank 127. The transfer tank 127 receives and temporarily stores the zinc-copper alloy molten liquid output from the casting tank 122, and then introduces the molten liquid into the casting mold 112.

[0037] During the casting of zinc-copper alloy ingots, if the oxide film formed on the surface of the molten metal is drawn into the interior during impact and tumbling, it can easily form a thin film after cooling, affecting the surface quality of subsequent processing. In this embodiment, the transfer tank 127 is not used as a simple transition container, but rather allows the molten metal to first enter a smaller temporary storage space from the casting tank 122, and then be discharged from the bottom of the transfer tank 127 into the casting mold 112. The flow path of the molten metal changes from direct pouring from a high position to a short-distance discharge after passing through the conveying pipe 123 and the transfer tank 127. The casting mold 112 initially receives the molten metal at its lower end, and the first stream of molten metal forms a pool at the lower end. Subsequent molten metal falls into the existing pool or spreads along the bottom of the lower mold, rather than directly impacting the bottom of the empty mold.

[0038] To further accommodate the inclined liquid-receiving posture, the bottom of the transfer tank 127 can be configured as a flat-slit bottom-mounted discharge port. The horizontal width of the flat-slit bottom-mounted discharge port is greater than its vertical height, and the discharge direction faces the bottom surface of the casting mold 112. A liquid-accumulating buffer section can be formed at the bottom of the casting mold 112, a bottom-mounted guide surface can be formed in the middle, and a liquid wave buffer section can be formed at the top. The liquid-accumulating buffer section is used to form a stable low-level liquid pool for the initial molten liquid. The bottom-mounted guide surface is used to allow the molten liquid to advance thinly along the bottom surface of the mold cavity during the return process of the casting mold 112. The liquid wave buffer section is used to reduce the impact of the molten liquid directly hitting the high-end wall when the leading edge reaches the high end. The above structure can be made using shallow grooves, gentle slopes, and rounded corner transitions, without changing the main forming contour of the ingot body, only forming a local liquid-receiving surface at the bottom of the mold cavity to guide the spread of the molten liquid.

[0039] As the molten metal enters the casting mold 112, the total weight of the casting mold 112 and the molten metal increases, causing the moving frame 115 to move downwards relative to the base 111. This downward movement of the moving frame 115 then causes the casting mold 112 to rotate, gradually adjusting it from an inclined, liquid-receiving posture to a horizontal forming posture. Because the zinc-copper alloy molten metal first forms a pool at the lower end, and then spreads from the lower end to the middle during the return of the casting mold 112 to its upright position, the liquid surface propulsion path and the mold posture change work together to reduce overflow caused by the liquid surface on one side being higher and then lower during uneven pouring.

[0040] The flat-slit bottom outlet, the low-end liquid storage buffer section, the bottom guide surface, and the high-end liquid wave buffer section together define the initial shape and spreading path of the molten liquid after entering the mold cavity, so that the molten liquid changes from a concentrated liquid column to a liquid band close to the bottom of the mold before entering the low-end liquid pool. This is more suitable for reducing the risk of roll-up and mold jamming for molten liquids such as zinc-copper alloys that are prone to forming surface oxide films.

[0041] Example 2: Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, based on Embodiment 1, the automatic alignment mechanism 110 further includes a second transmission rod 1193, a rotating column 1192, a connecting cylinder 119, a moving protrusion 1191, a third spring, a rotating tube 1194, a first transmission rod 116, a second bevel gear 114, a first rotating shaft 1197, and a first bevel gear 113. The third spring is made of heat-resistant spring steel, nickel-based heat-resistant elastic material, or other high-temperature resistant elastic material. The second transmission rod 1193 is rotatably mounted inside the base 111, and the rotating column 1192 is fixedly mounted on the second transmission rod 1193. The surface of the rotating column 1192 has a track groove extending circumferentially and axially. The connecting cylinder 119 is fixedly mounted at the bottom end of the movable frame 115, and the moving protrusion 1191 is fixedly mounted inside the connecting cylinder 119 and extends into the track groove on the surface of the rotating column 1192. The third spring is located inside the connecting cylinder 119. One end of it is rotatably connected to the connecting cylinder 119, and the other end is rotatably connected to the rotating column 1192. It is used to provide restoring force after the casting mold 112 is unloaded or the empty mold is reset.

[0042] The downward displacement of the movable frame 115 under its own weight serves as the input. The more molten metal in the casting mold 112, the greater the downward stroke of the movable frame 115, causing the connecting cylinder 119 to move downwards accordingly. The movable protrusion 1191 slides along the track groove on the surface of the rotating column 1192. Since the movable protrusion 1191 is confined to the vertical downward movement path by the connecting cylinder 119, while the rotating column 1192 can rotate around the second transmission rod 1193, the movable protrusion 1191 exerts a pushing effect on the sidewall of the track groove, converting the vertical displacement into the angular displacement of the second transmission rod 1193.

[0043] When the second transmission rod 1193 rotates, it drives the driving conical wheel 1195 to rotate. The driving conical wheel 1195 drives the driven conical wheel 1198 to rotate via the transmission belt 1196. The driven conical wheel 1198 is mounted on the rotating tube 1194, so the rotating tube 1194 rotates accordingly. The first transmission rod 116 is slidably mounted on the rotating tube 1194 and rotatably connected to the moving frame 115. The torque of the rotating tube 1194 is transmitted to the first transmission rod 116. The second bevel gear 114 is fixedly mounted on the first transmission rod 116. The first rotating shaft 1197 is rotatably mounted on the moving frame 115 and fixedly connected to the casting mold 112. The first bevel gear 113 is fixedly mounted on the first rotating shaft 1197 and meshes with the second bevel gear 114. The rotation of the first transmission rod 116 is ultimately transmitted to the first rotating shaft 1197 via the second bevel gear 114 and the first bevel gear 113, causing the casting mold 112 to gradually return to its original position around the first rotating shaft 1197.

[0044] The aforementioned transmission path directly converts the downward stroke caused by the liquid volume into the return angle of the casting mold 112, ensuring that the casting mold 112 initially maintains a low-end contact with the liquid, and gradually rotates towards a horizontal state after the molten liquid reaches a certain amount. With a liquid pool already formed at the low end of the zinc-copper alloy molten liquid, subsequent molten liquid entering the pool or advancing along the liquid surface reduces direct impact on the cavity. As the casting mold 112 gradually returns to its center, the liquid pool at the low end diffuses towards the middle, preventing the molten liquid from rushing from the low end to the high end all at once in the later stages, thus helping to control the churning of the liquid surface.

[0045] The third spring also serves to ensure that when the casting mold 112 is removed after casting or when the weight change after the molten liquid solidifies causes the moving frame 115 to lose its downward pressure, the third spring can drive the connecting cylinder 119 and the rotating column 1192 back to their initial mating positions, so that the moving protrusion 1191 returns to the initial end of the track groove, providing an initial posture for the next empty mold tilting to receive liquid.

[0046] Example 3: Figure 3 , Figure 5 , Figure 7 and Figure 8As shown, based on Embodiment 2, the switching mechanism 130 further includes two positive and negative screws 132, multiple moving plates 131, two spur gears 133, a moving block 134, two racks 135, a second spring 136, and a slide bar 137. The second spring 136 is made of heat-resistant spring steel, nickel-based heat-resistant elastic components, or other high-temperature resistant elastic materials. Both positive and negative screws 132 are rotatably mounted inside the base 111. Each positive and negative screw 132 has a moving plate 131 threadedly connected to both ends. The moving plate 131 located at the driving cone wheel 1195 is rotatably connected to the driving cone wheel 1195, and the moving plate 131 located at the driven cone wheel 1198 is rotatably connected to the driven cone wheel 1198. The two spur gears 133 are respectively fixedly mounted on the two positive and negative screws 132. The slide rod 137 is fixedly installed inside the base 111, the moving block 134 is slidably installed on the slide rod 137, the second spring 136 is sleeved on the slide rod 137, one end of which is fixedly connected to the moving block 134 and the other end is fixedly connected to the base 111, and two racks 135 are fixedly installed on both sides of the moving block 134 respectively and mesh with two spur gears 133 respectively.

[0047] The automatic alignment mechanism 110 also includes a slide plate 117 and an extrusion column 118. The slide plate 117 is slidably mounted on the base 111 and fixedly connected to the connecting cylinder 119. The extrusion column 118 is fixedly mounted on the bottom end of the slide plate 117. When the casting mold 112 just begins to receive liquid, the downward stroke of the moving frame 115 is small. The connecting cylinder 119 drives the slide plate 117 and the extrusion column 118 to move downward synchronously, but the extrusion column 118 has not yet contacted the moving block 134. At this time, the driving cone wheel 1195 and the driven cone wheel 1198 maintain their initial relative positions. The second transmission rod 1193 outputs a high rotational speed to the rotating tube 1194 via the transmission belt 1196, so that the casting mold 112 can quickly return to alignment in the early stage of receiving liquid. In this stage, the amount of molten liquid is small and the depth of the liquid pool is shallow. The quick return to alignment can allow the liquid pool at the bottom to expand towards the middle, avoiding the molten liquid from accumulating too deeply at the bottom.

[0048] As casting continues, the amount of molten metal inside the casting mold 112 increases, and the moving frame 115 moves further downward. The extrusion column 118 contacts and pushes the moving block 134 along the slide rod 137. The moving block 134 drives the racks 135 on both sides to move. Since the two racks 135 mesh with the two spur gears 133 respectively, the two spur gears 133 drive the two positive and negative screws 132 to rotate in opposite directions. The moving plates 131 on the corresponding positive and negative screws 132 thus generate displacements in different directions, causing the two driving cone pulleys 1195 to move away from each other and the two driven cone pulleys 1198 to move closer to each other. The driving groove formed by the driving cone pulleys 1195 becomes wider, and the driven groove formed by the driven cone pulleys 1198 becomes narrower. The effective contact radius of the transmission belt 1196 on the driving and driven sides changes accordingly, thereby reducing the output speed of the second transmission rod 1193 to the rotating tube 1194.

[0049] This speed change corresponds to the change in molten inertia. In the initial stage of molten material reception, the amount of molten material in the casting mold 112 is small, resulting in low surface inertia. A faster return to center promotes the spread of the molten material from the lower end to the middle. In the later stage, the amount of molten material in the casting mold 112 increases. If the return to center continues at a higher speed, the liquid front edge is prone to forming a peak towards the upper end and impacting the upper wall. Therefore, the switching mechanism 130 changes the effective radius of the conical wheel, allowing the casting mold 112 to approach a horizontal forming posture at a lower speed in the later stage. After the extrusion column 118 stops pushing the moving block 134, the moving block 134 stops at a position where the second spring 136 and the extrusion force are balanced, maintaining the transmission ratio at the required state for this stage of casting.

[0050] By changing the effective radii of the active cone wheel 1195 and the driven cone wheel 1198, the casting mold 112 can complete more return angles in the first half of the liquid receiving stage and retain a smaller remaining angle in the second half of the liquid receiving stage for buffering and finishing. This makes the spreading speed of the zinc-copper alloy melt match the mass growth of the liquid pool and reduces the impact of high-end liquid wave impact on oxide film entrapment.

[0051] Example 4: Figure 9 and Figure 10 As shown, based on Embodiment 1, the intermediate casting mechanism 120 includes a rotating frame 121, a casting barrel 122, a conveying pipe 123, a fixed plate 125, a first spring 126, an intermediate barrel 127, a first valve 124, and a second valve 128. The first spring 126 is made of heat-resistant spring steel, nickel-based heat-resistant elastic components, or other high-temperature resistant elastic materials. The rotating frame 121 is rotatably mounted inside the base 111, and the casting barrel 122 is fixedly mounted on the rotating frame 121. The conveying pipe 123 communicates with the casting barrel 122. The fixed plate 125 is fixedly mounted on the conveying pipe 123. The intermediate barrel 127 is connected to the fixed plate 125 via the first spring 126. The first valve 124 is fixedly mounted on the conveying pipe 123, and the second valve 128 is fixedly mounted on the intermediate barrel 127.

[0052] At the start of the work, the first valve 124 is opened, and the molten zinc-copper alloy in the casting tank 122 enters the transfer tank 127 through the delivery pipe 123. After the transfer tank 127 reaches the preset liquid level, the first valve 124 is closed, cutting off the liquid supply channel between the casting tank 122 and the transfer tank 127. Then, the second valve 128 is opened, and the molten liquid in the transfer tank 127 enters the casting mold 112 from the bottom discharge end. Since the transfer tank 127 can be filled to the same or nearly the same liquid level each time casting is performed, the discharge pressure received by the casting mold 112 is mainly determined by the height of the temporarily stored molten liquid in the transfer tank 127, and does not change directly with the continuous drop of the large liquid level in the casting tank 122. This is suitable for maintaining relatively consistent discharge conditions during multi-station continuous casting.

[0053] After the transfer tank 127 is filled with molten metal, its weight increases and compresses the first spring 126. The transfer tank 127 moves downward relative to the fixed platen 125 and approaches the casting mold 112. The distance between the discharge end and the lower end of the casting mold 112 decreases, shortening the air section experienced by the molten metal after it exits the transfer tank 127, and reducing the degree to which the liquid flow is stretched into a thin stream. As the second valve 128 opens, the amount of molten metal in the transfer tank 127 continuously decreases, the weight of the transfer tank 127 decreases, and the first spring 126 gradually recovers and drives the transfer tank 127 to move upward. At the same time, the casting mold 112 gradually rotates from an inclined posture to a horizontal posture under the action of the automatic straightening mechanism 110. The upward movement of the transfer tank 127 can reserve space for the straightening movement of the casting mold 112, avoiding interference between the discharge end of the transfer tank 127 and the casting mold 112.

[0054] The transfer tank 127 can be equipped with a replaceable heat-resistant nozzle at its lower end. The heat-resistant nozzle forms a flow-stabilizing cavity that is wider at the top and narrower at the bottom, and a flat-slit discharge end. The flow-stabilizing cavity is used to reduce the flow deviation after the liquid exits from the conveying pipe 123, and the flat-slit discharge end is used to allow the molten liquid to enter in a strip along the lower end of the casting mold 112. When casting molds 112 of different specifications use the same initial tilt angle, the discharge cross-sectional area can be adjusted by replacing the heat-resistant nozzle, so that the liquid exit time of the transfer tank 127 is matched with the return time of the casting mold 112.

[0055] Example 5: Figure 1 , Figure 2 and Figure 9 As shown in the illustration, based on Embodiment 4, the rotating support mechanism 100 includes a base 101, a drive shaft 102, and a motor 103. The base 101 is fixedly connected to the base 111, and the motor 103 is fixedly installed inside the base 101. One end of the drive shaft 102 is fixedly connected to the power output shaft of the motor 103, and the other end is fixedly connected to the rotating frame 121. The rotating frame 121 is used to support the casting tank 122 and the conveying pipe 123, enabling the intermediate casting mechanism 120 to rotate around the center of the equipment and sequentially correspond to different casting molds 112.

[0056] In scenarios where multiple casting molds 112 are arranged circumferentially along the base 111, after one casting mold 112 completes casting, it is not advisable to immediately move the high-temperature ingot mold, nor is it advisable to allow the casting barrel 122 to remain at one station for an extended period while waiting for the next ingot mold to be positioned. In this embodiment, the motor 103 drives the drive shaft 102 to rotate, and the drive shaft 102 drives the rotating frame 121 to rotate, causing the casting barrel 122, the conveying pipe 123, and the transfer barrel 127 to rotate as a whole above the next casting mold 112. The casting mold 112, after casting is completed, remains in the corresponding station of the base 111 to cool, and the next empty casting mold 112 can continue to receive liquid from the transfer barrel 127.

[0057] After liquid is discharged from the transfer tank 127, it moves upward with the first spring 126, creating a clearance space between itself and the casting mold 112. When the motor 103 drives the rotating frame 121 to rotate, the bottom of the transfer tank 127 moves away from the casting mold 112, which has been returned to its normal or near-horizontal position, making it less likely to collide with the upper edge of the mold. After the rotating frame 121 reaches the next station, liquid is replenished to the transfer tank 127 through the first valve 124, and liquid is discharged to the next casting mold 112 through the second valve 128, thus forming a multi-station sequential casting work rhythm.

[0058] Example 6: Figure 1 , Figure 9 and Figure 10 As shown, while all other parts are the same as in Embodiment 4, the difference in this embodiment is that:

[0059] The casting tank 122 is installed at an angle on the rotating frame 121. The inlet end of the delivery pipe 123 extends into the casting tank 122 and is higher than the lowest liquid storage position of the casting tank 122, forming a tail liquid retention zone at the lowest point of the casting tank 122. When the first valve 124 is opened, the molten liquid in the casting tank 122 that is higher than the inlet end of the delivery pipe 123 enters the transfer tank 127. When the liquid level in the casting tank 122 drops to near the inlet end of the delivery pipe 123, the tail liquid, sedimentation inclusions, and residual liquid with large composition fluctuations at the lowest point remain in the tail liquid retention zone and no longer enter the transfer tank 127 and the casting mold 112.

[0060] The transfer tank 127 is used as a quantitative intermediate cup. Before each pour, the liquid level is replenished to the set level by the first valve 124. Then, the first valve 124 is closed and the second valve 128 is opened to introduce the quantitative melt in the transfer tank 127 into the corresponding casting mold 112. As a result, each casting mold 112 obtains a nearly uniform pouring level, outlet pressure, and single pouring volume, avoiding the pouring conditions of the first ingot, intermediate ingot, and last ingot that would be caused by the continuous drop in the liquid level of the casting tank 122.

[0061] With the above settings, the inclined liquid-retaining state of the casting tank 122 is used to intercept the bottom liquid of the ladle, and the quantitative liquid discharge of the transfer tank 127 is used to unify the liquid receiving conditions of each ingot mold, so that the last few ingots no longer directly receive the bottom liquid of the ladle, thereby reducing the problems of slag inclusions, increased hard spots, low zinc content, and relatively high copper content in the tail ingots.

[0062] Overall working principle:

[0063] The heat preservation and melting process of the casting barrel 122 is started, so that the zinc-copper alloy melt reaches a suitable temperature and flow state for casting in the casting barrel 122. Multiple casting molds 112 are respectively installed on the corresponding moving frame 115, and the empty casting mold 112 is kept in an inclined liquid-receiving posture with one end low and the other end high.

[0064] When motor 103 starts, it drives drive shaft 102 to rotate, which in turn drives rotating frame 121 to rotate. Rotating frame 121 then drives casting barrel 122, conveying pipe 123, and transfer barrel 127 to rotate above casting mold 112, so that the bottom discharge end of transfer barrel 127 is aligned with the low liquid receiving position of casting mold 112.

[0065] When the first valve 124 is opened, the zinc-copper alloy molten liquid in the casting barrel 122 enters the transfer barrel 127 through the delivery pipe 123. The transfer barrel 127 receives and temporarily stores the molten liquid. After the preset liquid storage volume is reached, the first valve 124 is closed, making the transfer barrel 127 an independent short-range liquid supply point.

[0066] As the weight of the molten liquid inside the transfer tank 127 increases, the first spring 126 is compressed. The transfer tank 127 moves downward relative to the fixed plate 125 and approaches the casting mold 112. The distance between the bottom of the transfer tank 127 and the bottom of the casting mold 112 decreases, providing space for low-drop liquid discharge.

[0067] When the second valve 128 is opened, the molten liquid in the transfer tank 127 enters the lower end of the casting mold 112 through the bottom discharge end. The molten liquid first forms a liquid pool at the lower end of the casting mold 112, and then the molten liquid spreads towards the middle along the lower liquid pool and the bottom of the mold, reducing the direct impact of the molten liquid into the bottom of the cavity mold.

[0068] As the molten liquid in the casting mold 112 gradually increases, the total weight of the molten liquid and the casting mold 112 causes the moving frame 115 to move downward relative to the base 111. The moving frame 115 causes the connecting cylinder 119 to move downward. The moving protrusion 1191 in the connecting cylinder 119 slides along the track groove on the surface of the rotating column 1192 and pushes the rotating column 1192 to rotate. The rotating column 1192 drives the second transmission rod 1193 to rotate.

[0069] The second transmission rod 1193 drives the active cone wheel 1195 to rotate. The active cone wheel 1195 drives the driven cone wheel 1198 to rotate via the transmission belt 1196. The driven cone wheel 1198 drives the rotating tube 1194 to rotate. The rotating tube 1194 drives the first transmission rod 116 to rotate. The first transmission rod 116 drives the first rotating shaft 1197 to rotate via the second bevel gear 114 and the first bevel gear 113. The first rotating shaft 1197 drives the casting mold 112 to gradually return from an inclined liquid-bearing posture to the upright position.

[0070] As the moving frame 115 continues to move downward, the slide plate 117 moves downward with the connecting cylinder 119 and drives the extrusion column 118 to move downward. After the extrusion column 118 contacts the moving block 134, it pushes the moving block 134 to move along the slide rod 137. The moving block 134 drives the two racks 135 to move. The two racks 135 drive the corresponding spur gears 133 and the positive and negative screws 132 to rotate. The moving plate 131 adjusts the relative distance between the driving cone wheel 1195 and the driven cone wheel 1198, so that the effective transmission ratio of the transmission belt 1196 changes and the return speed of the rear section of the casting mold 112 decreases.

[0071] As the molten liquid in the transfer barrel 127 gradually decreases, the first spring 126 drives the transfer barrel 127 to move upward, moving it away from the casting mold 112 that is being aligned. After the casting mold 112 reaches the quantitative casting amount, it is in a horizontal forming posture, and the second valve 128 is closed. Then, the motor 103 drives the drive shaft 102 and the rotating frame 121 to rotate again, causing the transfer casting mechanism 120 to rotate above the next casting mold 112, and repeating the above casting process.

[0072] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0073] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A zinc-copper alloy ingot composition homogenization smelting and casting apparatus, characterized in that, include: An automatic alignment mechanism includes a base, on which multiple movable frames are slidably mounted, and on which a casting mold is provided; A transfer casting mechanism, including a casting barrel and a transfer barrel connected by a conveying pipe; The transfer tank is used to receive and temporarily store the molten liquid output from the casting tank, and guide the molten liquid into the casting mold of the automatic alignment mechanism. The molten liquid is buffered by the transfer tank before entering the casting mold. At the same time, the weight of the molten liquid drives the moving frame to move downward relative to the base, and the casting mold rotates as the moving frame moves downward. This allows the casting mold to gradually adjust from an inclined liquid-receiving posture to a horizontal forming posture during the casting process, reducing uneven pouring and overflow.

2. The zinc-copper alloy ingot composition homogenization smelting and casting apparatus according to claim 1, characterized in that, The automatic alignment mechanism also includes: The second transmission rod is rotatably installed inside the base, and a rotating column with a track groove on its surface is fixedly installed on it; A connecting cylinder is fixedly installed at the bottom of the movable frame, and a movable protrusion is fixedly installed inside it. The movable protrusion extends into the track groove and slides with the track groove. The third spring is located inside the connecting cylinder, with one end rotatably connected to the connecting cylinder and the other end rotatably connected to the rotating column.

3. The zinc-copper alloy ingot composition homogenization smelting and casting apparatus according to claim 2, characterized in that, The automatic alignment mechanism also includes: A rotating tube is rotatably installed inside the base, and a first transmission rod rotatably connected to the movable frame is slidably mounted on it. The second bevel gear is fixedly mounted on the first transmission rod; The first rotating shaft is rotatably mounted on the movable frame and fixedly connected to the casting mold; The first bevel gear is fixedly mounted on the first rotating shaft and meshes with the second bevel gear.

4. The zinc-copper alloy ingot composition homogenization smelting and casting apparatus according to claim 3, characterized in that, The automatic alignment mechanism also includes: Two active conical pulleys are slidably mounted on the second transmission rod and form an active belt groove relative to each other; Two driven conical wheels are slidably mounted on the rotating tube and form a driven groove relative to each other; A transmission belt is wound between the driving belt groove and the driven belt groove to transmit the rotation of the second transmission rod to the rotating tube, thereby driving the first transmission rod to rotate and causing the casting mold to flip and adjust.

5. The zinc-copper alloy ingot composition homogenization smelting and casting apparatus according to claim 4, characterized in that, It also includes a switching mechanism, which comprises: Two positive and negative screws are rotatably installed inside the base, and both ends of the screws are threaded to a movable plate. The movable plate located at the active cone wheel is rotatably connected to the active cone wheel, and the movable plate located at the driven cone wheel is rotatably connected to the driven cone wheel. Two spur gears are fixedly mounted on the two positive and negative screws, respectively.

6. The zinc-copper alloy ingot composition homogenization smelting and casting apparatus according to claim 5, characterized in that, The automatic alignment mechanism also includes: The sliding plate is slidably mounted on the base and fixedly connected to the connecting cylinder; The extrusion column is fixedly installed at the bottom end of the slide plate.

7. The zinc-copper alloy ingot composition homogenization smelting and casting apparatus according to claim 6, characterized in that, The switching mechanism further includes: A sliding rod is fixedly installed inside the base, and a movable block is slidably installed on it; The second spring is sleeved on the slide rod, with one end fixedly connected to the moving block and the other end fixedly connected to the base; Two racks are fixedly installed on both sides of the moving block and mesh with two spur gears respectively.

8. The zinc-copper alloy ingot composition homogenization smelting and casting apparatus according to claim 1, characterized in that, The intermediate casting mechanism also includes: A rotating frame is rotatably installed inside the base and fixedly connected to the casting barrel; A fixed plate is fixedly installed on the conveying pipe and connected to the transfer barrel via a first spring.

9. The zinc-copper alloy ingot composition homogenization smelting and casting apparatus according to claim 1, characterized in that, The intermediate casting mechanism also includes: The first valve is fixedly installed on the conveying pipe; The second valve is fixedly installed on the transfer barrel.

10. The zinc-copper alloy ingot composition homogenization smelting and casting apparatus according to claim 8, characterized in that, It also includes a rotating support mechanism, which comprises: A base is fixedly connected to the pedestal, and a motor is fixedly installed inside it; The drive shaft is fixedly connected at one end to the power output shaft of the motor and at the other end to the rotating frame.

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