A casting mold for a bimetallic composite hammerhead

Abstract

This utility model relates to the field of hammerhead casting technology, and more particularly to a casting mold for a dual-liquid bimetallic composite hammerhead. A casting mold for a dual-liquid bimetallic composite hammerhead includes a fixed frame, a controller, mold bodies, tie rods, a first arc plate, and a second arc plate. The controller is fixedly connected to the upper part of the fixed frame. Mold bodies are symmetrically slidably placed inside the fixed frame. Tie rods are fixedly connected to both sides of the top of the two mold bodies. A casting cavity is formed inside the two mold bodies. A first arc plate is fixedly connected to one side of the top of each mold body, and a second arc plate is fixedly connected to the top of each mold body. This utility model, through the vertical lifting motion of the push plate and the coordinated action of the guide groove on the top block and mold body, efficiently converts the linear motion driven by the motor into the symmetrical separation action of the mold body, achieving automatic mold opening.

Description

Technical Field

[0001] This utility model relates to the field of hammer casting technology, and in particular to a casting mold for a double-liquid bimetallic composite hammer. Background Technology

[0002] Hammerheads are critical wear components in mining machinery such as crushers and sand making machines, and are widely used in industries such as metallurgy, building materials, coal, and chemicals. During operation, the hammerhead head directly impacts and rubs against the material, requiring its working area to have extremely high hardness and wear resistance; while the hammer handle mainly bears the impact load and transmits power, needing good toughness to prevent breakage. Hammerheads made from a single material cannot simultaneously meet the dual performance requirements of high wear resistance and high toughness, often resulting in a trade-off, leading to short service life, frequent replacements, and high maintenance costs. To solve this contradiction, bimetallic composite casting technology has emerged. This technology involves separately casting two metals with different properties (such as high-chromium cast iron for the hammerhead working part to provide wear resistance, and low-carbon steel or low-alloy steel for the hammer handle to provide toughness), achieving a metallurgical bond between the two metals in a liquid-liquid state under specific process conditions, thereby obtaining a composite hammerhead with both excellent wear resistance and good toughness.

[0003] However, in practical applications, existing modular molds are prone to sticking or corrosion due to thermal expansion and contraction of mold modules after high-temperature casting. They often cannot be directly separated during disassembly and must be loosened manually by using tools such as sledgehammers. This not only increases the labor intensity of operators but also easily damages the mold mating surfaces due to improper force, affecting the mold's accuracy and service life. During the process of disassembling the mold by using a sledgehammer, there are safety risks such as flying debris causing injury and tool slippage. Especially in the high-temperature and high-humidity foundry environment, the safety of operation is difficult to guarantee.

[0004] Therefore, it is necessary to design a casting mold for a bimetallic composite hammerhead with two liquids to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the shortcomings of existing modular molds, such as adhesion or corrosion due to thermal expansion and contraction, the need for manual hammering during disassembly, which increases labor intensity and may damage the mold, and poses safety risks such as injury from flying debris and tool slippage, especially in high temperature and high humidity environments, this utility model provides a casting mold for a double-liquid bimetallic composite hammer.

[0006] A casting mold for a bimetallic composite hammerhead includes a fixed frame, a controller, mold bodies, tie rods, a first arc plate, a second arc plate, a motor, a screw, a push plate, and a top block. The controller is fixedly connected to the upper part of the fixed frame. Mold bodies are symmetrically slidably placed inside the fixed frame. Tie rods are fixedly connected to both sides of the top of the two mold bodies. A casting cavity is formed inside the two mold bodies. A first arc plate is fixedly connected to one side of the top of each of the two mold bodies. A second arc plate is fixedly connected to the top of each of the two mold bodies. A motor is fixedly connected to the left side of the fixed frame. The motor is electrically connected to the controller. A screw is fixedly connected to the output shaft of the motor. The screw is rotatably connected to the fixed frame. A push plate is slidably connected inside the fixed frame. The bottom of the two mold bodies abuts against the push plate. The left side of the push plate protrudes from the fixed frame and is threadedly connected to the screw. A top block is fixedly connected inside the fixed frame. Guide grooves are provided on the left side of each of the two mold bodies. The top block slides within the two guide grooves.

[0007] Optionally, the two first arc-shaped plates form a sealed liquid inlet channel, which communicates with the casting cavity.

[0008] Optionally, a side channel is formed between the interiors of the two mold bodies, and the side channel communicates with the casting cavity. Two second arc-shaped plates form a side liquid inlet channel, and the side liquid inlet channel communicates with the side channel.

[0009] Optionally, the interior of the fixing frame has a wedge-shaped structure.

[0010] Optionally, it also includes partitions, ultrasonic transducers, and ultrasonic generators. Partitions are symmetrically fixedly connected inside the fixed frame. Multiple ultrasonic transducers are fixedly connected in a rectangular array inside each of the two partitions. An ultrasonic generator is fixedly connected in the middle of each of the two partitions. Multiple ultrasonic transducers inside the same partition are electrically connected to the corresponding ultrasonic generators. Both ultrasonic generators are electrically connected to the controller.

[0011] Optionally, it also includes mounting blocks, with mounting blocks symmetrically fixed to both sides of the fixing frame, and each mounting block having a mounting hole on its top.

[0012] The beneficial effects are as follows: 1. This utility model, through the vertical lifting motion of the push plate and the coordinated cooperation of the top block and the guide groove on the mold body, efficiently transforms the linear motion driven by the motor into the symmetrical separation action of the mold body, realizing automatic mold opening, significantly improving the automation level and safety of mold opening, avoiding mold damage caused by traditional manual knocking or prying, and through the cooperation of the wedge structure on the upper side inside the fixed frame with the mold body, effectively guides the centering and fitting during the mold closing process, ensuring the mold closing accuracy, and the action is stable and reliable. It not only reduces the labor intensity of operators, but also extends the service life of the mold, improves production efficiency and operational safety, and is suitable for the large-scale and continuous casting production of double liquid bimetallic composite hammerheads.

[0013] 2. This utility model achieves precise control of the ultrasonic vibration process through the electrical connection between the controller and the ultrasonic generator and ultrasonic transducer; through the rectangular array distribution of multiple ultrasonic transducers in the partition, it ensures that the vibration energy is uniformly transmitted to the mold body; through the high-frequency vibration generated by the ultrasonic transducer acting on the molten metal in the solidification stage in the mold, it effectively promotes the homogenization of melt flow, significantly refines the grain structure, and reduces and removes internal defects such as pores, shrinkage cavities and inclusions. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the fixing frame, controller, and mold body.

[0016] Figure 3 This is a three-dimensional structural diagram of the mold body, the arc plate, and the second arc plate of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the motor, screw, and push plate.

[0018] Figure 5 This is a three-dimensional structural diagram of the top block and the mold body of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the ultrasonic transducer, ultrasonic generator, and mounting block of this utility model.

[0020] The markings in the attached diagram are as follows: 1: fixed frame, 2: controller, 3: mold body, 4: tie rod, 5: first arc plate, 6: second arc plate, 7: motor, 8: screw, 9: push plate, 10: top block, 11: guide groove, 12: partition plate, 13: ultrasonic transducer, 14: ultrasonic generator, 15: mounting block. Detailed Implementation

[0021] Example: A casting mold for a bimetallic composite hammerhead, such as... Figures 1-6As shown, the device includes a fixed frame 1, a controller 2, a mold body 3, a pull rod 4, a first arc plate 5, a second arc plate 6, a motor 7, a screw 8, a push plate 9, and a top block 10. The upper side of the fixed frame 1 has a wedge-shaped structure. The controller 2 is installed on the upper left side of the fixed frame 1 by screws. The mold bodies 3 are symmetrically slidably placed inside the fixed frame 1. Pull rods 4 are welded to the left and right sides of the top of the two mold bodies 3. The two mold bodies 3 form a pouring cavity inside. The first arc plate 5 is welded to the side of the top of the two mold bodies 3 that is close to each other. The two first arc plates 5 form a sealed liquid inlet channel, which communicates with the pouring cavity. The second arc plate 6 is welded to the right side of the top of the two mold bodies 3. A side channel is formed between the right sides of the two mold bodies 3, which communicates with the casting cavity. Two second arc-shaped plates 6 form a side liquid inlet channel, which communicates with the side channel. A motor 7 is installed on the lower left side of the fixed frame 1 by screws. The motor 7 is electrically connected to the controller 2. A screw 8 is welded to the output axis of the motor 7. The screw 8 is rotatably connected to the fixed frame 1. A push plate 9 is slidably connected inside the fixed frame 1. The bottom sides of the two mold bodies 3 abut against the push plate 9. The left end of the push plate 9 passes through the fixed frame 1 and is threadedly connected to the screw 8. A top block 10 is welded to the left side of the fixed frame 1. Guide grooves 11 are opened on the left side of both mold bodies 3. The top block 10 slides in the two guide grooves 11.

[0022] like Figure 1 , Figure 2 and Figure 6 As shown, it also includes partitions 12, ultrasonic transducers 13, ultrasonic generators 14, and mounting blocks 15. Partitions 12 are symmetrically welded to the front and back of the fixed frame 1. Multiple ultrasonic transducers 13 are mounted in a rectangular array inside each of the two partitions 12 by screws. An ultrasonic generator 14 is mounted in the middle of each of the two partitions 12 by screws. Multiple ultrasonic transducers 13 inside the same partition 12 are electrically connected to the corresponding ultrasonic generator 14. Both ultrasonic generators 14 are electrically connected to the controller 2. Mounting blocks 15 are symmetrically mounted on the front and back sides of the fixed frame 1 by screws. Each mounting block 15 has a mounting hole on its top.

[0023] When this device is needed, the fixing frame 1 is first securely installed through the mounting holes to ensure that the entire mold system is in a stable working state. The operator starts the equipment through the controller 2 to prepare for the casting operation of the dual-liquid dual-metal composite hammerhead. During the casting process, the first type of molten metal is injected from the side inlet channel and fills the first layer of metal through the casting cavity. Then, the second type of molten metal is injected from the sealed inlet channel, which is connected to the casting cavity, to achieve precise filling of another area in the casting cavity, thereby completing the dual-liquid composite casting process. After the casting is completed, the molten metal begins to cool and solidify in the mold body 3. During this period, the controller 2 can control the ultrasonic generator 14 to start, so that electrical energy is transmitted to multiple ultrasonic transducers 13 that are electrically connected to it. The ultrasonic transducers 13 generate high-frequency vibrations and transmit them to the mold body 3, which promotes uniform flow of molten metal, refines grains, eliminates pores and inclusions, and improves the internal quality and mechanical properties of the composite hammerhead. After the metal has completely cooled and solidified, the mold opening stage begins. At this time, the motor 7 is started by the controller 2. The output shaft of the motor 7 rotates and drives the screw 8 to rotate synchronously. The rotation of the screw 8 pushes the push plate 9 to slide upward within the fixed frame 1. As the push plate 9 rises, it pushes the two mold bodies 3 to move upward synchronously. During this process, the top block 10 remains stationary, while the guide groove 11 slides along the surface of the top block 10. The top block 10 applies a lateral separation force to the guide groove 11, guiding the two mold bodies 3 to slide symmetrically to the left and right sides while rising, thus realizing automatic mold opening. By utilizing the vertical upward movement of the push plate 9 and the cooperation of the top block 10 and the guide groove 11, the linear motion is converted into a lateral mold opening force, avoiding the damage caused by traditional manual hammering or forced prying. At the same time, the wedge-shaped structure on the upper side inside the fixed frame 1 helps to guide the mold bodies 3 to slide smoothly during the mold opening process, further improving the smoothness and reliability of mold opening. When the mold needs to be reset for the next casting cycle, first ensure that the formed double-liquid bimetallic composite hammerhead has been completely removed from the separated mold body 3. Then, the controller 2 controls the motor 7 to reverse, and the output shaft of the motor 7 drives the screw 8 to rotate in the opposite direction, thereby driving the push plate 9 to slide downward in the fixed frame 1. As the push plate 9 descends, its upper end face gradually separates from the bottom side of the two mold bodies 3. Under the action of gravity, the two mold bodies 3 begin to move downward synchronously. During the descent, the top block 10 continues to be inserted into the guide groove 11. Its inclined surface or guide surface guides the mold bodies 3 from the separated state to gradually move towards the center. When the mold body 3 descends to the lowest position, the two are completely closed and tightly fitted. At the same time, the top block 10 is fully embedded in the starting end of the guide groove 11, completing the mold closing and centering. At this time, the wedge-shaped structure on the upper side of the fixed frame 1 further ensures that the mold body 3 is closed in place, preparing for the next casting. The entire mold system returns to the initial closed state, waiting for the start of the next round of casting operation.

Claims

1. A mold for casting a two-liquid bimetallic composite hammer head, characterized by: The system includes a fixed frame (1), a controller (2), a mold body (3), a pull rod (4), a first arc plate (5), a second arc plate (6), a motor (7), a screw (8), a push plate (9), and a top block (10). The controller (2) is fixedly connected to the upper part of the fixed frame (1). The mold body (3) is symmetrically slidably placed inside the fixed frame (1). Pull rods (4) are fixedly connected to both sides of the top of the two mold bodies (3). A pouring cavity is formed inside the two mold bodies (3). The first arc plate (5) is fixedly connected to one side of the top of the two mold bodies (3). The second arc plate is fixedly connected to the top of the two mold bodies (3). (6) A motor (7) is fixedly connected to the left side of the fixed frame (1). The motor (7) is electrically connected to the controller (2). A screw (8) is fixedly connected to the output shaft of the motor (7). The screw (8) is rotatably connected to the fixed frame (1). A push plate (9) is slidably connected inside the fixed frame (1). The bottom of the two mold bodies (3) abuts against the push plate (9). The left side of the push plate (9) passes through the fixed frame (1) and is threadedly connected to the screw (8). A top block (10) is fixedly connected inside the fixed frame (1). Guide grooves (11) are opened on the left side of the two mold bodies (3). The top block (10) slides in the two guide grooves (11).

2. The mold according to claim 1, wherein: The two first arc plates (5) form a sealed liquid inlet channel, which is connected to the casting cavity.

3. A mold for casting a dual liquid bimetallic hammer head according to claim 2, characterized in that: A side channel is formed between the two mold bodies (3), which is connected to the casting cavity. Two second arc plates (6) form a side liquid inlet channel, which is connected to the side channel.

4. The mold according to claim 3, wherein: The fixed frame (1) has a wedge-shaped structure inside.

5. A mold for casting a dual liquid bimetallic hammer head according to claim 4, characterized in that: It also includes partitions (12), ultrasonic transducers (13) and ultrasonic generators (14). The partitions (12) are symmetrically fixed inside the fixed frame (1). Multiple ultrasonic transducers (13) are fixedly connected in a rectangular array inside each of the two partitions (12). An ultrasonic generator (14) is fixedly connected in the middle of each of the two partitions (12). Multiple ultrasonic transducers (13) inside the same partition (12) are electrically connected to the corresponding ultrasonic generator (14). Both ultrasonic generators (14) are electrically connected to the controller (2).

6. A mold for casting a dual liquid bimetallic hammer head according to claim 5, characterized in that: It also includes mounting blocks (15), and mounting blocks (15) are symmetrically fixedly connected to both sides of the fixed frame (1), and each mounting block (15) has a mounting hole on its top.

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