A casting mold for processing motorcycle parts

Abstract

The application belongs to the technical field of mold processing, and particularly relates to a casting mold for motorcycle accessory processing, which comprises an operation table, the bottom of which is provided with a detachably installed crucible. The mold can be stably demolded through the setting of an ejection mechanism for multi-point ejection. When the baffle moves, the ejection mechanism will be ejected, and the baffle will drive the limiting sleeve to move through the clamping action, and then drive the resistance rod embedded in the ejection sleeve to slide. Through the traction effect, the included angle between the driving pull rod and the resistance rod changes, the traction convex slide block slides in the convex groove on the side of the ejection sleeve, and then through the inclined structure design of the driven pull rod and the end surface of the fan-shaped support, three groups of fan-shaped supports are expanded to support the ejection operation. Conversely, the limiting effect of the inclined structure of the end surface of the fan-shaped support and the annular groove on the side of the connecting concave ring will drive the three groups of fan-shaped supports to shrink, and then realize the closed storage operation with the baffle.

Description

Technical Field

[0001] This invention relates to the field of mold processing technology, and in particular to a casting mold for processing motorcycle parts. Background Technology

[0002] In the motorcycle parts processing system, casting is a key process for mass production of complex metal parts (especially core components of engines and transmission systems). With its "near-net-shape" advantage, it can efficiently manufacture irregular, thin-walled or hollow structures that are difficult to achieve with traditional cutting, while taking into account both cost and material utilization.

[0003] The following systematically analyzes motorcycle parts casting technology from five dimensions: core application scenarios, mainstream casting processes, key processes, quality control, and technological trends. Casting processes are primarily suited for metal parts in motorcycles that are "structurally complex, subject to uneven stress, and require integral molding," concentrated in the power system, transmission system, and chassis. Different casting processes have significant differences in principles, equipment, cost, and compatible parts, requiring selection based on the material, structural complexity, and precision requirements of the parts. A complete casting process involves four stages: "preliminary preparation – metal smelting – mold filling – post-processing." Motorcycle parts (especially power system components) directly affect driving safety, and the casting process requires key control over three categories of defects: appearance and dimensional defects, internal defects, and mechanical performance. As motorcycles upgrade towards "lightweight, high-performance, and environmentally friendly" designs, casting technology is showing three major development directions: lightweight materials, precision processes, and intelligent production.

[0004] The existing motorcycle parts processing and casting methods have significant drawbacks, mainly as follows: On the one hand, after the casting is completed, it needs to be ejected. Depending on the shape of the casting, ejector pins, ejector tubes, ejector plates, etc. are selected. For thin-walled shell parts, excessive single-point ejection force can easily cause the casting to deform, thus affecting the casting accuracy. On the other hand, after the bottom mold is installed, the pressure generated during the casting process can easily cause the bottom mold to shift in position, affecting the casting accuracy. To ensure its stability during the casting process, the bottom mold needs to be auxiliaryly fixed.

[0005] Therefore, a casting mold for processing motorcycle parts is needed. Summary of the Invention

[0006] This invention proposes a casting mold for processing motorcycle parts, which solves the problems in the prior art where, after the casting is completed, an ejection operation is required. Depending on the shape of the casting, ejector pins, ejector tubes, ejector plates, etc., are selected. For thin-walled shell parts, excessive single-point ejection force can easily lead to casting deformation, thus affecting the casting accuracy. On the other hand, after the bottom mold is installed, the pressure generated during the casting process can easily cause the bottom mold to shift in position, affecting the casting accuracy. In order to ensure its stability during the casting process, the bottom mold needs to be auxiliaryly fixed.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A casting mold for processing motorcycle parts includes an operating table, the bottom of which is provided with a detachable crucible, and the side of the crucible is connected to an air pump via a pipe.

[0009] The top of the operating platform is provided with a bottom mold, the bottom of the bottom mold is provided with a detachable mold clamping mechanism, the top side of the operating platform is provided with a top rod, the top of the top rod is connected to a detachable top mold mechanism, the side of the top mold mechanism is provided with a detachable multi-stage lifting mechanism, and the top mold mechanism is internally fitted with an ejection mechanism.

[0010] Preferably, the mold clamping mechanism includes a hydraulic rod, a limiting disc at the top of the hydraulic rod, an I-shaped slider at the end of the hydraulic rod, a detachable cross-shaped limiting block on the side of the limiting disc, a clamp at the top of the I-shaped slider, a driven crank at the bottom of the cross-shaped limiting block, and a limiting turntable rotatably connected to the end of the driven crank.

[0011] Preferably, the surface of the limiting disc has a "+" shaped groove, the I-shaped slider and the groove have an embedded sliding structure, the center of the limiting disc has a hole for transferring molten metal, the cross-shaped limiting block engages with the end of the groove of the limiting disc to form a limiting structure, and the driven crank and the limiting turntable have a rotating structure through the sliding of the I-shaped slider.

[0012] Preferably, the bottom of the push rod is provided with a resisting top plate, the bottom of the resisting top plate is provided with a guide post, one end of the guide post is sleeved with a buffer spring, the end of the buffer spring away from the resisting top plate is connected to a mold foot support plate, the bottom of the mold foot support plate is provided with a detachable mold foot, the end of the mold foot is provided with a top mold connecting shaft for connecting the top mold, the end of the guide post away from the resisting top plate is sleeved with a baffle, the side of the resisting top plate is provided with a detachable limiting connecting frame, and the side of the mold foot support plate is provided with a limiting sliding shaft.

[0013] Preferably, the resisting top plate and the mold foot support plate are connected end to end by a buffer spring, the resisting top plate and the guide post form a resisting structure, the mold foot support plate and the baffle and the guide post form an embedded sliding structure, and the guide post is provided with a limiting baffle to prevent the baffle from falling off.

[0014] Preferably, the surface of the baffle is provided with holes for the extension and retraction of the ejection mechanism, the resisting top plate is connected to the baffle through a limiting connecting frame, the sides of the resisting top plate and the baffle are provided with arc-shaped sliders embedded in the sliding groove inside the limiting connecting frame, and the limiting sliding shaft is engaged inside the limiting connecting frame to form a sliding structure.

[0015] Preferably, a servo motor is provided on the side of the top rod, and a threaded shaft is provided at the output end of the servo motor. A connecting slider is sleeved on the surface of the threaded shaft. A detachable connecting cross plate is provided on the side of the connecting slider. An intermittent gear is provided at the end of the connecting cross plate away from the connecting slider. A detachable limiting frame is provided on the side of the intermittent gear. An intermittent rack is provided on the side of the limiting frame. The intermittent rack meshes with the intermittent gear.

[0016] Preferably, the threaded shaft and the connecting slider are threadedly connected, the connecting slider and the connecting horizontal plate are rotatably connected, the top side of the connecting slider is fixed to the side of the resisting top plate, the side of the intermittent gear is provided with a sliding block that engages inside the limiting frame, and the connecting horizontal plate passes through the resisting top plate and the mold foot support plate to form a resisting structure.

[0017] Preferably, the ejection mechanism includes a resisting rod, a limiting sleeve is fixedly connected to the surface of the resisting rod, one end of the limiting sleeve is provided with a detachable ejection sleeve, the side of the resisting rod is provided with a detachable active pull rod, the end of the active pull rod is rotatably connected to a convex slider, the side of the convex slider is rotatably connected to a driven pull rod, one end of the driven pull rod is rotatably connected to a fan-shaped support, and the end of the ejection sleeve is provided with a connecting concave ring.

[0018] Preferably, the resisting rod has a telescopic structure, the resisting rod is embedded in the interior of the ejector sleeve in a sliding structure, the limiting sleeve is engaged with the hole opened on the surface of the baffle, the active pull rod is embedded in the groove opened on the side of the resisting rod in a rotating structure, the side of the ejector sleeve has equidistant convex grooves, the convex slider is embedded in the convex groove in a sliding structure, the upper and lower end faces of the fan-shaped support are designed with an inclined structure, and the groove of the connecting concave ring is embedded in and engaged with the annular groove opened on the surface of the baffle.

[0019] This invention proposes a casting mold for processing motorcycle parts. Compared with the prior art, the advantages of this invention are:

[0020] 1. The ejection mechanism can perform multi-point ejection for stable demolding. When the baffle moves, the ejection mechanism will eject the material. The baffle will drive the limiting sleeve to move through the locking action, which in turn drives the resisting rod embedded in the ejection sleeve to slide. Through the traction action, the angle between the active pull rod and the resisting rod changes, which pulls the convex slider to slide in the convex groove on the side of the ejection sleeve. Then, through the inclined structure design of the driven pull rod and the end face of the fan-shaped support, the three sets of fan-shaped support will be caused to unfold, thereby supporting the ejection operation. Conversely, by using the inclined structure of the end face of the fan-shaped support and the limiting action of the annular groove on the side of the connecting concave ring, the three sets of fan-shaped support will be driven to retract, thereby achieving the closing and storage operation with the baffle.

[0021] 2. The mold clamping mechanism can provide auxiliary fixation for the bottom mold. When the lower mold is placed on the bottom mold, the hydraulic rod retracts, causing the I-shaped slider to slide within the cross groove on the side of the limiting disc, indirectly driving the clamp to center. Simultaneously, the I-shaped slider resists the driven crank, causing the limiting turntable to rotate, which in turn drives the other three sets of driven cranks and the I-shaped slider, enabling the four clamps to slide synchronously towards the center position, thus providing auxiliary clamping and fixing for the bottom mold.

[0022] 3. The top mold mechanism enables casting operations on the mold; the top mold connecting shaft facilitates the installation of the top mold; the baffle provides resistance to die casting, and the annular groove on the baffle surface can also help to prevent molten metal from overflowing; after die casting is completed, the compression of the buffer spring causes the mold foot support plate and the baffle to slide on the guide post, and the ejection mechanism ejects the mold, thus achieving demolding.

[0023] 4. The multi-stage lifting mechanism can adjust the distance between the top plate and the mold foot support plate, thereby completing the demolding operation. The servo motor drive will rotate the threaded shaft, which will then drive the connecting slider to slide up and down, and then drive the top plate and the connecting horizontal plate to move. At this time, the intermittent gear will move under the limiting action of the limiting frame. When the intermittent gear contacts the intermittent rack, the meshing structure of the intermittent gear and the intermittent rack will cause the intermittent gear to rotate on its own, and the connecting horizontal plate will rotate accordingly. The side of the connecting horizontal plate will exert a resisting force on the mold foot support plate, thereby adjusting the distance between the top plate and the mold foot support plate, and providing assistance for the demolding operation of the ejection mechanism. Attached Figure Description

[0024] Figure 1 This is a first-view schematic diagram of the overall structure of a casting mold for processing motorcycle parts proposed in this invention.

[0025] Figure 2 This is a second-view schematic diagram of the overall structure of a casting mold for processing motorcycle parts proposed in this invention.

[0026] Figure 3 This is a first-view structural schematic diagram of a mold clamping mechanism for a casting mold used in motorcycle parts processing, as proposed in this invention.

[0027] Figure 4 This is a second-view structural diagram of a mold clamping mechanism for a casting mold used in motorcycle parts processing, as proposed in this invention.

[0028] Figure 5 This is a partial structural schematic diagram of a casting mold for processing motorcycle parts proposed in this invention;

[0029] Figure 6 This is a schematic diagram of the top mold mechanism of a casting mold for processing motorcycle parts proposed in this invention;

[0030] Figure 7 This is a schematic diagram of a multi-segment lifting mechanism for a casting mold used in motorcycle parts processing, as proposed in this invention.

[0031] Figure 8 This is a schematic diagram of the ejection mechanism of a casting mold for processing motorcycle parts, as proposed in this invention.

[0032] Figure 9 This is a partial structural diagram of the ejection mechanism of a casting mold for processing motorcycle parts proposed in this invention.

[0033] In the diagram: 1. Operating table; 2. Crucible; 3. Air pump; 4. Bottom mold; 5. Mold clamping mechanism; 501. Hydraulic rod; 502. Limiting disc; 503. I-shaped slider; 504. Cross-shaped limit block; 505. Fixture; 506. Driven crank; 507. Limiting turntable; 6. Ejector rod; 7. Ejector mold mechanism; 701. Support plate; 702. Guide post; 703. Buffer spring; 704. Mold foot support plate; 705. Mold foot; 706. Ejector mold connecting shaft; 707. Baffle; 70 8. Limiting connecting frame; 709. Limiting sliding shaft; 8. Multi-stage lifting mechanism; 801. Servo motor; 802. Threaded shaft; 803. Connecting slider; 804. Connecting cross plate; 805. Intermittent gear; 806. Limiting frame; 807. Intermittent rack; 9. Ejection mechanism; 901. Support rod; 902. Limiting sleeve; 903. Ejection sleeve; 904. Active pull rod; 905. Convex slider; 906. Driven pull rod; 907. Fan-shaped support column; 908. Connecting concave ring. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-9 The present invention provides a technical solution: a casting mold for processing motorcycle parts, including an operating table 1, a detachable crucible 2 at the bottom of the operating table 1, and an air pump 3 connected to the side of the crucible 2 through a pipe.

[0036] The top of the operating table 1 is provided with a bottom mold 4, the bottom of the bottom mold 4 is provided with a detachable mold clamping mechanism 5, the top side of the operating table 1 is provided with a push rod 6, the top of the push rod 6 is connected to a detachable top mold mechanism 7, the side of the top mold mechanism 7 is provided with a detachable multi-stage lifting mechanism 8, and the inside of the top mold mechanism 7 is fitted with an ejection mechanism 9.

[0037] Furthermore, the mold clamping mechanism 5 includes a hydraulic rod 501, a limiting disc 502 at the top of the hydraulic rod 501, an I-shaped slider 503 at the end of the hydraulic rod 501, a detachable cross-shaped limiting block 504 on the side of the limiting disc 502, a clamp 505 at the top of the I-shaped slider 503, and a driven crank 506 at the bottom of the cross-shaped limiting block 504. The end of the driven crank 506 is rotatably connected to a limiting turntable 507. The lower mold is placed on the bottom mold 4, and the hydraulic rod... The contraction action of 501 will cause the I-shaped slider 503 to slide in the cross groove on the side of the limiting disc 502, indirectly causing the clamp 505 to move back to the center. At the same time, the resistance of the I-shaped slider 503 to the driven crank 506 will cause the limiting turntable 507 to rotate, which will then drive the other three sets of driven cranks 506 and the I-shaped slider 503, thereby enabling the four clamps 505 to slide synchronously towards the center position, and then perform auxiliary clamping and fixing operations on the bottom mold 4.

[0038] Furthermore, the surface of the limiting disc 502 has a cross-shaped groove, and the I-shaped slider 503 is embedded in the groove. The center of the limiting disc 502 has a hole for transferring molten metal. The cross-shaped limiting block 504 engages with the end of the groove of the limiting disc 502 to form a limiting structure. The driven crank 506 and the limiting turntable 507 rotate through the sliding of the I-shaped slider 503. The I-shaped slider 503 slides in the cross groove on the side of the limiting disc 502, indirectly driving the clamp 505 to move back to the center. At the same time, the I-shaped slider 503 resists the driven crank 506, which drives the limiting turntable 507 to rotate, thereby driving the other three sets of driven cranks 506 and I-shaped sliders 503. This enables the four clamps 505 to slide synchronously towards the center position, thereby providing auxiliary clamping and fixing for the bottom mold 4.

[0039] Furthermore, the bottom of the ejector pin 6 is provided with a resisting plate 701, and the bottom of the resisting plate 701 is provided with a guide post 702. One end of the guide post 702 is sleeved with a buffer spring 703, and the end of the buffer spring 703 away from the resisting plate 701 is connected to a mold foot support plate 704. The bottom of the mold foot support plate 704 is provided with a detachable mold foot 705, and the end of the mold foot 705 is provided with a mold connecting shaft 706 for connecting the top mold. The end of the guide post 702 away from the resisting plate 701 is sleeved with a baffle 707. The side of plate 701 is provided with a detachable limiting connecting bracket 708, and the side of mold foot support plate 704 is provided with a limiting sliding shaft 709; the baffle 707 can provide resistance to die casting, and at the same time, the annular groove on the surface of the baffle 707 can perform a certain amount of leakage prevention to avoid molten metal overflow; after die casting is completed, the compression of the buffer spring 703 will cause the mold foot support plate 704 and the baffle 707 to slide on the guide post 702, and the ejection mechanism 9 will perform the ejection operation, thereby realizing the demolding operation.

[0040] Furthermore, the anti-force top plate 701 and the mold foot support plate 704 are connected end to end by a buffer spring 703. The anti-force top plate 701 and the guide post 702 form an anti-force structure. The mold foot support plate 704 and the baffle 707 form an embedded sliding structure with the guide post 702. The guide post 702 is provided with a limiting baffle to prevent the baffle 707 from falling off. The mold foot support plate 704 and the baffle 707 slide on the guide post 702 to realize the adjustment of the distance between the mold foot support plate 704 and the baffle 707, thereby realizing the demolding adjustment operation. At the same time, the end of the guide post 702 is provided with a limiting baffle to prevent the baffle 707 from falling off.

[0041] Furthermore, the surface of the baffle 707 is provided with holes for the extension and retraction of the ejection mechanism 9. The anti-force plate 701 is connected to the baffle 707 through a limiting connecting frame 708. The sides of the anti-force plate 701 and the baffle 707 are provided with arc-shaped sliders embedded in the internal sliding grooves of the limiting connecting frame 708. The limiting sliding shaft 709 is engaged inside the limiting connecting frame 708 in a sliding structure. The lifting operation of the multi-stage lifting mechanism 8 can drive the top mold mechanism 7 to achieve lifting operation, thereby performing die casting of motorcycle parts. The holes on the surface of the baffle 707 facilitate the extension and retraction of the ejection mechanism 9 for demolding and ejection operations. The setting of the limiting connecting frame 708 and the limiting sliding shaft 709 can achieve the vertical sliding limiting effect of the anti-force plate 701, the mold foot support plate 704 and the baffle 707. The limiting sliding shaft 709 is engaged inside the limiting connecting frame 708, which can further achieve the limiting effect of the mold foot support plate 704.

[0042] Furthermore, a servo motor 801 is provided on the side of the push rod 6. A threaded shaft 802 is provided at the output end of the servo motor 801. A connecting slider 803 is sleeved on the surface of the threaded shaft 802. A detachable connecting cross plate 804 is provided on the side of the connecting slider 803. An intermittent gear 805 is provided at the end of the connecting cross plate 804 away from the connecting slider 803. A detachable limiting frame 806 is provided on the side of the intermittent gear 805. An intermittent rack 807 is provided on the side of the limiting frame 806, and the intermittent rack 807 meshes with the intermittent gear 805. Driven by the servo motor 801, the threaded shaft 802 will rotate, thereby... The connecting slider 803 slides up and down, which in turn moves the anti-force plate 701 and the mold foot support plate 704. At this time, the intermittent gear 805 moves under the limiting action of the limiting frame 806. When the intermittent gear 805 comes into contact with the intermittent rack 807, the meshing structure of the intermittent gear 805 and the intermittent rack 807 will cause the intermittent gear 805 to rotate. The connecting horizontal plate 804 will rotate accordingly. The side of the connecting horizontal plate 804 will exert a resisting force on the mold foot support plate 704, thereby adjusting the distance between the anti-force plate 701 and the mold foot support plate 704, providing assistance for the demolding operation of the ejection mechanism 9.

[0043] Furthermore, the threaded shaft 802 and the connecting slider 803 are threadedly connected, the connecting slider 803 and the connecting horizontal plate 804 are rotatably connected, the top side of the connecting slider 803 is fixed to the side of the resisting top plate 701, the side of the intermittent gear 805 is provided with a sliding block that engages inside the limiting frame 806, and the connecting horizontal plate 804 passes through the resisting top plate 701 and the mold foot support plate 704 to form a resisting structure; the threaded shaft 802 and the connecting slider 803 are threadedly connected. The connecting slider 803 can slide up and down. The setting of the connecting slider 803 can drive the anti-force plate 701 and the connecting horizontal plate 804 to move synchronously. When the intermittent gear 805 meshes with the intermittent rack 807, the intermittent gear 805 rotates on its own, and the connecting horizontal plate 804 rotates accordingly. The side of the connecting horizontal plate 804 will exert anti-force on the mold foot support plate 704, thereby adjusting the distance between the anti-force plate 701 and the mold foot support plate 704, and providing assistance for the demolding operation of the ejection mechanism 9.

[0044] Furthermore, the ejection mechanism 9 includes a resisting rod 901, with a limiting sleeve 902 fixedly connected to its surface. One end of the limiting sleeve 902 is provided with a detachable ejection sleeve 903. A detachable driving pull rod 904 is provided on the side of the resisting rod 901. A convex slider 905 is rotatably connected to the end of the driving pull rod 904. A driven pull rod 906 is rotatably connected to the side of the convex slider 905. A sector-shaped support column 907 is rotatably connected to one end of the driven pull rod 906. A connecting concave ring 908 is provided at the end of the ejection sleeve 903. The baffle 707 will drive the limiting sleeve 902 to move through a locking action, thereby... The force rod 901 embedded in the ejector sleeve 903 slides, and through the traction action, the angle between the active pull rod 904 and the force rod 901 changes, pulling the convex slider 905 to slide in the convex groove on the side of the ejector sleeve 903. Then, through the inclined structure design of the driven pull rod 906 and the end face of the fan-shaped support 907, the three sets of fan-shaped support 907 will be extended to support the ejection operation. Conversely, by utilizing the inclined structure of the end face of the fan-shaped support 907 and the limiting effect of the annular groove on the side of the connecting concave ring 908, the three sets of fan-shaped support 907 will be retracted, thereby achieving a closed storage operation with the baffle 707.

[0045] Furthermore, the resisting rod 901 has a telescopic structure and is embedded inside the ejector sleeve 903 in a sliding structure. The limiting sleeve 902 engages with the hole on the surface of the baffle 707. The active pull rod 904 is embedded in the groove on the side of the resisting rod 901 in a rotating structure. The side of the ejector sleeve 903 has equidistant convex grooves, and the convex slider 905 is embedded in the convex groove in a sliding structure. The upper and lower end faces of the fan-shaped support 907 are designed with an inclined structure, and the groove of the connecting concave ring 908 is embedded in the annular groove on the surface of the baffle 707. At the location; through traction, the angle between the active pull rod 904 and the resisting rod 901 changes, pulling the convex slider 905 to slide in the convex groove on the side of the ejector sleeve 903. Then, through the inclined structure design of the driven pull rod 906 and the end face of the fan-shaped support 907, the three sets of fan-shaped support 907 will be caused to unfold, thereby supporting the ejection operation; conversely, by utilizing the inclined structure of the end face of the fan-shaped support 907 and the limiting effect of the annular groove on the side of the connecting concave ring 908, the three sets of fan-shaped support 907 will be driven to retract, thereby achieving a closed storage operation with the baffle 707.

[0046] Working principle: This type of motorcycle parts processing device can be operated in the following ways;

[0047] First, the lower mold is placed on the bottom mold 4. The hydraulic rod 501 retracts, causing the I-shaped slider 503 to slide in the cross groove on the side of the limiting disc 502, indirectly causing the clamp 505 to move back to the center. At the same time, the I-shaped slider 503 exerts a resistance force on the driven crank 506, causing the limiting turntable 507 to rotate. This drives the other three sets of driven cranks 506 and the I-shaped slider 503, enabling the four clamps 505 to slide synchronously towards the center position, thus providing auxiliary clamping and fixing for the bottom mold 4.

[0048] Next, the upper mold is installed on the top mold connecting shaft 706, and the baffle 707 can provide resistance to the die casting. At the same time, the annular groove on the surface of the baffle 707 can perform a certain amount of leakage prevention to avoid the overflow of molten metal. After the die casting is completed, the compression of the buffer spring 703 will cause the mold foot support plate 704 and the baffle 707 to slide on the guide post 702, and the ejection mechanism 9 will perform the ejection operation, thereby realizing the demolding operation. At the same time, the setting of the limiting connecting frame 708 and the limiting sliding shaft 709 can limit the vertical sliding of the resistance top plate 701, the mold foot support plate 704 and the baffle 707. The limiting sliding shaft 709 is engaged inside the limiting connecting frame 708, which can further limit the mold foot support plate 704.

[0049] Secondly, the multi-stage lifting mechanism 8 is driven by the servo motor 801, which drives the threaded shaft 802 to rotate, thereby driving the connecting slider 803 to slide up and down, and then driving the anti-force plate 701 and the mold foot support plate 704 to move. At this time, the intermittent gear 805 will move under the limiting action of the limiting frame 806. When the intermittent gear 805 contacts the intermittent rack 807, the meshing structure of the intermittent gear 805 and the intermittent rack 807 will cause the intermittent gear 805 to rotate on its own, and the connecting horizontal plate 804 will rotate accordingly. The side of the connecting horizontal plate 804 will exert a resisting force on the mold foot support plate 704, thereby adjusting the distance between the anti-force plate 701 and the mold foot support plate 704, providing assistance for the demolding operation of the ejection mechanism 9.

[0050] Then, the air pump 3 is used to pressurize the metal and transport the molten metal in the crucible 2 to the bottom mold 4 through the pipeline to realize the casting operation;

[0051] Finally, the multi-stage lifting mechanism 8 is operated again. The baffle 707 will move the limiting sleeve 902 through the locking action, which in turn will cause the resisting rod 901 embedded in the ejection sleeve 903 to slide. Through the traction action, the angle between the active pull rod 904 and the resisting rod 901 changes, which will pull the convex slider 905 to slide in the convex groove on the side of the ejection sleeve 903. Then, through the inclined structure design of the driven pull rod 906 and the end face of the fan-shaped support 907, the three sets of fan-shaped support 907 will be caused to unfold, thereby supporting the ejection operation. Conversely, by using the inclined structure of the end face of the fan-shaped support 907 and the limiting action of the annular groove on the side of the connecting concave ring 908, the three sets of fan-shaped support 907 will be driven to retract, thereby achieving the closing and storage operation with the baffle 707.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casting mold for processing a motorcycle accessory, comprising an operating table (1), characterized in that: The bottom of the operation platform (1) is provided with a detachable installation crucible (2), the side of the crucible (2) is connected with a gas pump (3) through a pipeline; The top of the operation platform (1) is provided with a bottom die (4), the bottom of the bottom die (4) is provided with a detachable installation mold clamping mechanism (5), the top side of the operation platform (1) is provided with a top rod (6), the top end of the top rod (6) is connected with a detachable installation top die mechanism (7), the side of the top die mechanism (7) is provided with a detachable installation multi-section lifting mechanism (8), the inside of the top die mechanism (7) is sleeved with an ejection mechanism (9); The mold clamping mechanism (5) comprises a hydraulic rod (501), the top of the hydraulic rod (501) is provided with a limiting disc (502), the end of the hydraulic rod (501) is provided with a I-shaped sliding block (503), the side of the limiting disc (502) is provided with a detachable installation cross limiting block (504), the top of the I-shaped sliding block (503) is provided with a clamp (505), the bottom of the cross limiting block (504) is provided with a driven crank rod (506), the end of the driven crank rod (506) is rotatably connected with a limiting turntable (507); The ejection mechanism (9) comprises a resistance rod (901), the surface of the resistance rod (901) is fixedly connected with a limiting sleeve (902), one end of the limiting sleeve (902) is provided with a detachable installation ejection sleeve (903), the side of the resistance rod (901) is provided with a detachable installation driving pull rod (904), the end of the driving pull rod (904) is rotatably connected with a convex sliding block (905), the side of the convex sliding block (905) is rotatably connected with a driven pull rod (906), one end of the driven pull rod (906) is rotatably connected with a fan-shaped support (907), the end of the ejection sleeve (903) is provided with a linking concave ring (908); The resistance rod (901) is of telescopic structure, the resistance rod (901) is embedded in the inside of the ejection sleeve (903) and is of sliding structure, the limiting sleeve (902) is clamped in the hole formed in the surface of the baffle (707), the driving pull rod (904) is embedded in the groove formed in the side of the resistance rod (901) and is of rotating structure, equidistant convex grooves are formed in the side of the ejection sleeve (903), the convex sliding block (905) is embedded in the convex grooves and is of sliding structure, the upper and lower end faces of the fan-shaped support (907) are of inclined structure design, the groove of the linking concave ring (908) is embedded and clamped in the annular groove formed in the surface of the baffle (707).

2. A casting mold for processing a motorcycle accessory according to claim 1, characterized in that: The surface of the limiting disc (502) is of "cross" structure and is provided with a sliding groove, the I-shaped sliding block (503) and the sliding groove are of embedded sliding structure, a hole for transmitting metal liquid is formed in the center of the limiting disc (502), the cross limiting block (504) is clamped in the end of the sliding groove of the limiting disc (502) and constitutes a limiting structure, the driven crank rod (506) and the limiting turntable (507) are of rotating structure through the sliding of the I-shaped sliding block (503).

3. A casting mold for processing a motorcycle accessory according to claim 1, characterized in that: The bottom of the top rod (6) is provided with a resistance top plate (701), the bottom of the resistance top plate (701) is provided with a guide column (702), one end of the guide column (702) is sleeved with a buffer spring (703), the end of the buffer spring (703) away from the resistance top plate (701) is connected with a die foot support plate (704), the bottom of the die foot support plate (704) is provided with a detachable die foot (705), the end of the die foot (705) is provided with a top die connecting shaft (706) for connecting the top die, the end of the guide column (702) away from the resistance top plate (701) is sleeved with a baffle (707), the side of the resistance top plate (701) is provided with a detachable limiting connection frame (708), and the side of the die foot support plate (704) is provided with a limiting sliding shaft (709).

4. A casting mold for processing a motorcycle accessory according to claim 3, characterized in that: The resistance top plate (701) and the die foot support plate (704) are connected end to end through the buffer spring (703), the resistance top plate (701) and the guide column (702) are in a resistance structure, the die foot support plate (704) and the baffle (707) and the guide column (702) are in an embedded sliding structure, and the guide column (702) is provided with a limiting baffle for preventing the baffle (707) from falling off.

5. A casting mold for processing a motorcycle accessory according to claim 4, characterized in that: The surface of the baffle (707) is provided with a hole for the extension and retraction of the ejection mechanism (9), the resistance top plate (701) and the baffle (707) are connected through the limiting connection frame (708), the sides of the resistance top plate (701) and the baffle (707) are provided with arc-shaped sliding blocks embedded in the sliding grooves in the limiting connection frame (708), and the limiting sliding shaft (709) is in a sliding structure in the limiting connection frame (708).

6. A casting mold for processing a motorcycle accessory according to claim 1, characterized in that: The side of the top rod (6) is provided with a servo motor (801), the output end of the servo motor (801) is provided with a threaded shaft (802), the surface of the threaded shaft (802) is sleeved with a connecting sliding block (803), the side of the connecting sliding block (803) is provided with a detachable connecting cross plate (804), the end of the connecting cross plate (804) away from the connecting sliding block (803) is provided with an intermittent gear (805), the side of the intermittent gear (805) is provided with a detachable limiting frame (806), the side of the limiting frame (806) is provided with an intermittent rack (807), and the intermittent rack (807) is engaged with the intermittent gear (805).

7. A casting mold for processing a motorcycle accessory according to claim 6, characterized in that: The threaded shaft (802) and the connecting sliding block (803) are in a threaded connection structure, the connecting sliding block (803) and the connecting cross plate (804) are in a rotary connection structure, the side top of the connecting sliding block (803) is fixed to the side of the resistance top plate (701), the side of the intermittent gear (805) is provided with a sliding clamping block clamped in the limiting frame (806), and the connecting cross plate (804) penetrates between the resistance top plate (701) and the die foot support plate (704) in a resistance structure.

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