A double sprue casting mold for aluminum alloy wheel hub

Abstract

The utility model relates to the wheel hub casting field especially relates to a kind of aluminium alloy wheel hub double sprue casting mould, including workbench, workbench is fixedly connected with bottom die, bottom die is provided with multiple patterns protruding, multiple top pipes are slidably connected in the middle part of bottom die, multiple air holes are set in each top pipe, multiple top pipes lower end are connected with lift mechanism, multiple top pipes lower end are fixedly connected with gas box, multiple top pipes are communicated with gas box, gas box is fixedly connected with concentration pipe, lift mechanism includes first cylinder, first cylinder is fixedly connected in workbench lower end, gas box is fixedly connected in the moving end of first cylinder, workbench is fixedly connected with two second cylinders, the movement of two second cylinders is fixedly connected with side mould, the mould of the application can be when unloading to the pattern surface of wheel hub downward natural wind heat dissipation treatment.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub casting, and in particular to a double-sprue casting mold for aluminum alloy wheel hubs. Background Technology

[0002] Aluminum alloy wheel casting is a process that involves injecting molten aluminum alloy into a mold, followed by cooling and processing to manufacture automobile wheels. After the wheel is formed, the patterned side is located at the bottom, which prevents it from having good contact with the air for heat dissipation. This results in uneven heat distribution between the upper and lower parts of the wheel, affecting the forming effect. Due to the difference in heat dissipation rates between the upper and lower parts of the mold, the thicker lower mold leads to slower heat dissipation. The inconsistent cooling rates in different parts of the wheel can create stress concentration inside, potentially causing wheel deformation or even cracking. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide a double-sprue casting mold for aluminum alloy wheel hubs. The mold of this application can provide natural wind heat dissipation treatment for the patterned surface facing down of the wheel hub during unloading.

[0004] A double-sprue casting mold for aluminum alloy wheel hubs includes a worktable, a bottom mold fixedly connected to the worktable, multiple patterned protrusions on the bottom mold, multiple top tubes slidably connected to the middle of the bottom mold, each top tube having multiple air holes, and a lifting mechanism connected to the lower end of the multiple top tubes.

[0005] Multiple jacking pipes are fixedly connected to air boxes at their lower ends, and all jacking pipes are connected to the air boxes. A central pipe is fixedly connected to the air boxes.

[0006] The lifting mechanism includes a first cylinder, which is fixedly connected to the lower end of the worktable, and an air box is fixedly connected to the moving end of the first cylinder.

[0007] Two second cylinders are fixedly connected to the worktable, and the movement of the two second cylinders is fixedly connected to the side mold.

[0008] The inner diameters of the two side molds are the same as the diameter of the bottom mold.

[0009] It also includes the upper mold, which has two sprue openings at the top, and the two sprue openings penetrate the upper mold.

[0010] Funnels were inserted into both gating gates.

[0011] Guide grooves are fixedly connected to both funnels.

[0012] It also includes a mounting plate, on which a third cylinder is fixedly connected, and the upper mold is fixedly connected to the moving end of the third cylinder.

[0013] Both side molds have chamfers at their upper ends for fitting with the upper mold. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0015] Figure 1 and Figure 2 A schematic diagram of the overall structure of a double-sprue casting mold for aluminum alloy wheel hubs; Figure 3 This is a schematic diagram of the upper mold structure; Figure 4 This is a schematic diagram of the bottom mold structure. Detailed Implementation

[0016] The present invention will be described in detail with reference to the accompanying drawings of the embodiments of the present invention.

[0017] A double-sprue casting mold for aluminum alloy wheel hubs includes a workbench 201, a bottom mold 301 fixedly connected to the workbench 201, a plurality of patterned protrusions on the bottom mold 301, a plurality of top tubes 302 slidably connected to the middle of the bottom mold 301, each top tube 302 having a plurality of air holes, and a lifting mechanism connected to the lower end of the plurality of top tubes 302.

[0018] See Figure 2 and Figure 4 , Multiple raised patterns are used to process the patterns on the outside of the wheel hub. When casting aluminum alloy wheel hubs, the liquid aluminum alloy comes into contact with the bottom mold 301, and the patterns on the outside of the wheel hub are formed under the action of multiple raised patterns.

[0019] After the wheel hub is formed, the patterned side is located at the bottom, which prevents it from making good contact with the air to achieve heat dissipation. This results in uneven heat distribution between the upper and lower parts of the wheel hub, affecting the forming effect. Due to the difference in heat dissipation rate between the upper and lower parts of the mold, the thicker lower mold leads to slower heat dissipation. The inconsistent cooling rates in different parts of the wheel hub can create stress concentration inside, which may cause wheel hub deformation or even cracking.

[0020] When the casting mold of this application is in use, the formed wheel hub sits on the bottom mold 301. At this time, the upper part and the side of the wheel hub can contact the air, thereby achieving the effect of natural heat dissipation. However, the lower part of the wheel hub, with the patterned surface facing down, cannot receive natural heat dissipation from the air. At this time, the operator controls the lifting mechanism to drive multiple jacking pipes 302 to slide upward and extend, causing the wheel hub to be pushed upward and the lower part of the wheel hub to detach from the bottom mold 301. At the same time, the fan uses a fan to transmit air to the multiple jacking pipes 302, so that the air can be evenly sprayed out through the air holes on the jacking pipes 302, achieving the effect of air jet heat dissipation treatment on the patterned surface of the wheel hub. This achieves the effect of the wheel hub receiving natural air heat dissipation, making the overall heat dissipation of the wheel hub uniform, thereby ensuring that the wheel hub is not affected by stress concentration, avoiding deformation or even cracking, and further improving the quality of the wheel hub.

[0021] Multiple jacking pipes 302 are fixedly connected to air boxes 304 at their lower ends, and all multiple jacking pipes 302 are connected to air boxes 304. A central pipe 305 is fixedly connected to the air box 304.

[0022] See Figure 2 , The staff connected the exhaust pipe of the fan to the central pipe 305, so that the air discharged by the fan can enter the air box 304 through the central pipe 305. By setting the air box 304, the air can be evenly delivered to multiple top pipes 302, thereby ensuring that the air is evenly discharged and achieving a uniform heat dissipation effect.

[0023] The lifting mechanism includes a first cylinder 306, which is fixedly connected to the lower end of the worktable 201, and an air box 304 is fixedly connected to the moving end of the first cylinder 306.

[0024] See Figure 2 , When unloading is required, the operator controls the extension of the moving end of the first cylinder 306 to move the air box 304 upward. The air box 304 then moves multiple jacking pipes 302 upward to extend, achieving the function of unloading the wheel hub while dissipating heat, reducing operation steps and improving processing efficiency.

[0025] Two second cylinders 203 are fixedly connected to the worktable 201, and the movement of the two second cylinders 203 is fixedly connected to the side mold 202.

[0026] See Figure 4 , When a wheel hub needs to be cast, the moving ends of the two second cylinders 203 are extended by controlling them to drive the two side molds 202 to move relative to each other. When the two side molds 202 are engaged, a cylindrical space is formed. After the aluminum alloy liquid is injected into the cylindrical space, an aluminum alloy wheel hub is formed. The two side molds 202 are used to form the sides of the wheel hub.

[0027] The inner diameters of the two side molds 202 are the same as the diameter of the bottom mold 301.

[0028] See Figure 4 , When the two side molds 202 are engaged, they cooperate with the bottom mold 301 to form a cavity. Since the inner diameter of the two side molds 202 is the same as the diameter of the bottom mold 301, it can prevent the aluminum alloy liquid from leaking and ensure the integrity of the wheel hub.

[0029] It also includes an upper mold 103, which has two sprue gates 104 at its upper end, and the two sprue gates 104 penetrate the upper mold 103.

[0030] See Figure 3 , The upper mold 103 is used to cooperate with the two side molds 202 and the bottom mold 301 to form a sealed cavity. After the two side molds 202 are engaged, the operator controls the upper mold 103 to move downward and engage with the upper end of the two side molds 202. Then, aluminum alloy liquid is injected into the mold through the two sprue gates 104. The two sprue gates 104 can accelerate the injection of aluminum alloy liquid into the mold, thereby further improving the processing speed.

[0031] Funnels 105 are inserted into both gating openings 104.

[0032] See Figure 3 , Before injecting the molten aluminum alloy, the workers insert the funnel 105 into the sprue 104 to expand the casting range, prevent the molten aluminum alloy from leaking outside the upper mold 103, and avoid adding unnecessary cleaning procedures.

[0033] Guide grooves 106 are fixedly connected to both funnels 105.

[0034] See Figure 3 , The guide groove 106 is used to guide the aluminum alloy liquid. In order to avoid interference between the filling container and other equipment, the aluminum alloy liquid is poured into the guide groove 106, and then the aluminum alloy liquid can automatically flow into the funnel 105 along the guide groove 106 and finally enter the mold.

[0035] The casting mold also includes a mounting plate 101, on which a third cylinder 102 is fixedly connected, and an upper mold 103 is fixedly connected to the moving end of the third cylinder 102.

[0036] See Figure 3 , Workers can fix the mounting plate 101 to other building structures by inserting bolts into the mounting plate 101, thereby fixing the position of the upper mold 103. When casting wheel hubs, workers can extend the moving end of the third cylinder 102 to drive the upper mold 103 to move downward and fasten it to the two side molds 202.

[0037] Both side molds 202 have chamfers at their upper ends for fitting with the upper mold 103.

[0038] See Figure 4 , The chamfer is used to ensure a tight fit between the upper mold 103 and the upper ends of the two side molds 202, and to increase the contact area between the upper mold 103 and the edges of the two side molds 202.

Claims

1. A double-sprue casting mold for aluminum alloy wheel hubs, characterized in that: The system includes a workbench with a fixed bottom mold. The bottom mold has multiple patterned protrusions, and multiple top tubes are slidably connected to the middle of the bottom mold. Each top tube has multiple air holes, and the lower ends of the top tubes are connected to a lifting mechanism. The lifting mechanism is controlled to drive the multiple top tubes to slide upwards and extend, causing the wheel hub to be pushed upwards and move. The lower part of the wheel hub is separated from the bottom mold. At the same time, a fan is used to transmit air to the multiple top tubes, so that the air can be evenly sprayed out through the air holes on the top tubes to achieve air jet cooling treatment on the patterned surface of the wheel hub.

2. The aluminum alloy wheel hub double-sprue casting mold according to claim 1, characterized in that: Multiple jacking pipes are fixedly connected to air boxes at their lower ends, and all jacking pipes are connected to the air boxes. A central pipe is fixedly connected to the air boxes.

3. The aluminum alloy wheel hub double-sprue casting mold according to claim 2, characterized in that: The lifting mechanism includes a first cylinder, which is fixedly connected to the lower end of the worktable, and an air box is fixedly connected to the moving end of the first cylinder.

4. The aluminum alloy wheel hub double-sprue casting mold according to claim 3, characterized in that: Two second cylinders are fixedly connected to the worktable, and the movement of the two second cylinders is fixedly connected to the side mold.

5. The aluminum alloy wheel hub double-sprue casting mold according to claim 4, characterized in that: The inner diameters of the two side molds are the same as the diameter of the bottom mold.

6. The aluminum alloy wheel hub double-sprue casting mold according to claim 5, characterized in that: It also includes the upper mold, which has two sprue openings at the top, and the two sprue openings penetrate the upper mold.

7. The aluminum alloy wheel hub double-sprue casting mold according to claim 6, characterized in that: Funnels were inserted into both gating gates.

8. The aluminum alloy wheel hub double-sprue casting mold according to claim 7, characterized in that: Guide grooves are fixedly connected to both funnels.

9. The aluminum alloy wheel hub double-sprue casting mold according to claim 6, characterized in that: It also includes a mounting plate, on which a third cylinder is fixedly connected, and the upper mold is fixedly connected to the moving end of the third cylinder.

10. The aluminum alloy wheel hub double-sprue casting mold according to claim 6, characterized in that: Both side molds have chamfers at their upper ends for fitting with the upper mold.

Images