A novel liquid level control device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG XINNAI ALUMINUM MELTING & CASTING EQUIP MATERIAL CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-30
AI Technical Summary
Existing liquid level control devices cannot form a stable liquid level during the metal molten casting process, affecting the integrity and quality of the casting.
The liquid level control gate and liquid level detection sensor are used to accurately control and monitor the liquid level of the molten metal in the flow channel. The flow guide gate and the inner surface of the bottom of the flow channel form a flow guide channel to reduce the disturbance of the molten metal by external factors. At the same time, a vacuum generator is used to raise the liquid level.
It achieves precise and automated control of the molten metal level, improves casting quality and stability, and reduces the impact of external factors on the liquid level.
Smart Images

Figure CN224424215U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal melt casting technology, specifically to a novel liquid level control device. Background Technology
[0002] Liquid level control devices are commonly used in the casting process of molten metal. In existing technologies, when molten metal enters the casting mold through the runner, the liquid level of the molten metal is adjusted by regulating the opening of a gate installed in the runner to ensure the integrity and quality of the casting. However, due to external factors, the liquid level of the molten metal flowing from the runner to the casting mold cannot reach a stable state, which can easily affect the integrity and quality of the casting. Therefore, a novel liquid level control device is proposed. Summary of the Invention
[0003] The purpose of this invention is to provide a novel liquid level control device to solve the above problems.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel liquid level control device, comprising a flow channel and a casting mold plate connected to the flow channel; characterized in that a liquid level control gate and a liquid level detection sensor for precise control and monitoring of the liquid level of the molten metal are installed on the flow channel; a flow guide gate is installed in the flow channel in a height-adjustable manner, and after the flow guide gate is lowered, a flow guide channel is formed between the flow guide gate and the bottom inner surface of the flow channel to reduce disturbance to the molten metal.
[0005] Preferably, the liquid level control gate is installed at the metal melt inlet of the flow channel, and the metal melt casting liquid level is controlled by adjusting the opening between the liquid level control gate and the bottom inner surface of the flow channel.
[0006] Preferably, a switch gate that opens or closes the molten metal entering the casting mold can also be installed in the flow channel.
[0007] Preferably, the casting mold is connected to one end of the flow channel by a mold surface sealing box and a vacuum generator installed on the mold surface sealing box, which can raise the liquid level of the molten metal in the mold surface sealing box by using negative pressure.
[0008] The beneficial effects of this utility model are: by using the opening of the liquid level control gate to control the liquid level of the molten metal in the flow channel, and at the same time using the liquid level detection sensor to monitor the liquid level of the molten metal in the flow channel, the height of the molten metal casting liquid level can be precisely and automatically controlled, thereby improving the casting quality.
[0009] By lowering the guide gate, a flow channel is formed between the guide gate and the inner surface of the bottom of the flow channel to guide the flow of molten metal, thereby reducing the disturbance of molten metal by external factors and forming a stable liquid level. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a schematic diagram of the structure during the casting process of this utility model.
[0012] Legend: 1. Flow channel; 2. Casting mold; 3. Liquid level control gate; 4. Liquid level detection sensor; 5. Flow guide gate; 501. Flow guide channel; 6. Switch gate; 7. Pan surface sealing box; 8. Vacuum generator. Detailed Implementation
[0013] The present invention provides a novel liquid level control device in further detail below with reference to the accompanying drawings.
[0014] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.
[0015] See appendix Figure 1-2 As shown, this embodiment discloses a novel liquid level control device, including a flow channel 1 and a casting mold plate 2 connected to the flow channel 1. The device is characterized by a liquid level control gate 3 and a liquid level detection sensor 4 installed on the flow channel 1 for precise control and monitoring of the molten metal level. A flow guide gate 5 is vertically mounted inside the flow channel 1. After the flow guide gate 5 descends, it forms a flow guide channel 501 with the bottom inner surface of the flow channel 1, reducing disturbance to the molten metal flow. By controlling the opening of the liquid level control gate 3 to regulate the molten metal level in the flow channel 1, and simultaneously monitoring the molten metal level in the flow channel 1 using the liquid level detection sensor 4, the device can precisely and automatically control the height of the molten metal casting liquid level, thereby improving the casting quality.
[0016] By lowering the guide gate 5, a guide channel 501 for guiding the molten metal is formed between the guide gate 5 and the inner surface of the bottom of the flow channel 1, thereby reducing the disturbance of the molten metal by external factors and forming a stable liquid level.
[0017] See appendix Figure 1-2As shown, the liquid level control gate 3 is installed at the inlet of the molten metal in the flow channel 1. The liquid level control gate 3 is adjusted to control the casting liquid level of the molten metal by adjusting the opening between the liquid level control gate 3 and the bottom inner surface of the flow channel 1. A switch gate 6 is also installed in the flow channel 1 to open or close the molten metal entering the casting mold 2. By adjusting the opening between the liquid level control gate 3 and the bottom inner surface of the flow channel 1, the liquid level of the molten metal in the flow channel 1 is controlled, thereby achieving precise control of the casting liquid level of the molten metal and improving the casting quality.
[0018] See appendix Figure 1-2 As shown, the casting mold 2 is connected to one end of the flow channel 1 by a mold sealing box 7 and a vacuum generator 8 installed on the mold sealing box 7, which can raise the liquid level of the molten metal in the mold sealing box 7 by using negative pressure; by using the vacuum generator 8 to evacuate the mold sealing box 7, a negative pressure is formed in the mold sealing box 7, which causes the liquid level of the molten metal in the mold sealing box 7 to rise, thereby ensuring the quality of the molten metal casting.
[0019] In the working process of this utility model, during the initial casting stage, the switch gate 6 is closed, the guide gate is raised, and the liquid level control gate 3 is opened, allowing molten metal to accumulate in the flow channel 1. When the liquid level detection sensor 4 detects that the liquid level has reached the target height, the switch gate 6 is opened, allowing the molten metal to quickly fill the casting mold 2. Then, the guide gate 5 is lowered, forming a guide channel 501 between the bottom of the guide gate 5 and the inner surface of the bottom of the flow channel 1. The molten metal flows through this channel. At the same time, the vacuum generator 8 is turned on, creating negative pressure in the sealed box on the casting mold 2, raising the liquid level of the molten metal entering the box. The guide channel 501 minimizes turbulence in the molten metal after passing through the channel, forming a stable liquid level. After casting begins, the casting liquid level is controlled by adjusting the opening of the liquid level control gate 3. The opening of the liquid level control gate 3 is precisely controlled. Through the cooperation of the liquid level control gate 3 and the liquid level detection sensor 4, precise and automated control of the casting liquid level is achieved.
[0020] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A novel liquid level control device, comprising a flow channel (1) and a casting mold (2) connected to the flow channel (1); characterized in that... The flow channel (1) is equipped with a liquid level control gate (3) and a liquid level detection sensor (4) for precise control and monitoring of the liquid level of the molten metal; a flow guide gate (5) is installed in the flow channel (1) and can be raised and lowered. After the flow guide gate (5) is lowered, a flow guide channel (501) is formed between it and the bottom inner surface of the flow channel (1) to reduce the disturbance to the molten metal.
2. The novel liquid level control device according to claim 1, characterized in that: The liquid level control gate (3) is installed at the metal melt inlet of the flow channel (1). The liquid level of the metal melt casting liquid is controlled by adjusting the opening between the liquid level control gate (3) and the bottom inner surface of the flow channel (1).
3. The novel liquid level control device according to claim 2, characterized in that: The flow channel (1) may also be equipped with a switch gate (6) that opens or closes the molten metal entering the casting mold (2).
4. A novel liquid level control device according to claim 3, characterized in that: The casting mold (2) is connected to one end of the flow channel (1) by a mold sealing box (7) and a vacuum generator (8) installed on the mold sealing box (7) to raise the liquid level of the molten metal in the mold sealing box (7) by using negative pressure.