Precision control device for aluminum liquid flow in deep well casting production line

Abstract

This utility model belongs to the technical field of aluminum casting equipment, and in particular to a device for precise control of aluminum liquid flow rate in a deep well casting production line. The lower part of the storage tank is welded with a rectangular array of diverter cups. An electric valve for controlling the flow rate of the aluminum liquid is installed at the lower end of each diverter cup. A flow rate measuring tube is installed at the lower end of the electric valve. An ultrasonic flow meter for detecting the flow rate of the aluminum liquid is installed on the outer surface of the flow rate measuring tube. A diverter pipe for discharging the aluminum liquid is installed at the lower end of the flow rate measuring tube. The rectangular array of diverter cups welded to the lower part of the storage tank facilitates the diversion of the aluminum liquid poured into the tank through multiple diverter cups. The electric valve installed at the lower end of the diverter cups is used to adjust the flow rate of the aluminum liquid, while the ultrasonic flow meter is used to detect the flow rate of the aluminum liquid in the flow rate measuring tube. This allows the controller to programmatically control the opening of the electric valve, thereby achieving precise control of the aluminum liquid flow rate.

Description

Technical Field

[0001] This utility model belongs to the technical field of aluminum product casting equipment, specifically relating to a device for precise control of aluminum liquid flow in a deep well casting production line. Background Technology

[0002] In modern industrial production, deep well casting technology is widely used because it can produce large-size, high-quality aluminum profiles. However, current deep well casting production lines face many technical bottlenecks in the field of aluminum liquid flow control.

[0003] Traditional aluminum molten metal distribution devices often employ a single channel or a simple distribution structure. When molten aluminum is poured into the storage tank, the lack of a scientific distribution design leads to uneven flow and significant fluctuations during the distribution process, making precise control difficult. This directly impacts the dimensional accuracy and internal microstructure uniformity of subsequent castings. Furthermore, the heating and insulation performance of the distribution components in existing devices is poor. Heat loss during distribution causes a temperature drop in the molten aluminum, increasing its viscosity, affecting its fluidity, and potentially causing localized solidification within the distribution channel, clogging the flow path and severely disrupting normal production processes. Simultaneously, impurities in the molten aluminum, if not effectively filtered, will directly mix into the castings, forming defects such as porosity and inclusions, reducing the mechanical properties and surface quality of the castings, and increasing the scrap rate. In addition, there are obvious defects in the heating design of the manifold and the deep well mold. When the manifold is inserted into the deep well mold, if the mold preheating is not up to standard and the aluminum liquid in the manifold lacks sufficient continuous heating measures, the aluminum liquid is very likely to solidify prematurely, which will cause the casting process to be interrupted and affect production efficiency and product quality stability. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a device for precise control of aluminum liquid flow in a deep well casting production line. The specific technical solution is as follows:

[0005] A precise control device for aluminum liquid flow rate in a deep well casting production line includes a storage tank and a controller mounted on the side of the storage tank. A rectangular array of flow dividers is welded to the lower part of the storage tank. An electric valve for controlling the flow rate of the aluminum liquid is installed at the lower end of each flow divider. A flow rate measuring tube is installed at the lower end of the electric valve. An ultrasonic flow meter for detecting the flow rate of the aluminum liquid is installed on the outer surface of the flow rate measuring tube. A flow divider for discharging the aluminum liquid is installed at the lower end of the flow rate measuring tube.

[0006] The diversion cup includes an inner steel cup located inside, an outer steel cup provided outside the inner steel cup, and the upper and lower ends of the inner steel cup and the outer steel cup are welded and fixed. A first heating resistance wire for heating is provided in the interlayer between the inner steel cup and the outer steel cup. An aluminum silicate ceramic fiber layer is fixed on the outer surface of the outer steel cup. A removable filter element is installed inside the inner steel cup.

[0007] The diversion pipe includes a steel pipe with a double-layer structure. The inner layer of the steel pipe is an inner steel pipe, and the outer layer is an outer steel pipe. The lower ends of the inner and outer steel pipes are integrally formed. A steel partition is provided between the layers of the steel pipe, and the two ends of the inner and outer steel pipes are welded and fixed. A second heating resistance wire for heating is provided in the interlayer between the inner and outer steel pipes, and a third heating resistance wire is provided in the interlayer between the steel partition and the outer steel pipe. The electric valve, ultrasonic flow meter, first heating resistance wire, second heating resistance wire, and third heating resistance wire are all electrically connected to the controller.

[0008] Preferably, the filter element includes a steel ring, the inner ring of which is welded with a steel wire, and a limiting ring is integrally formed on the inner surface of the inner steel cup, with the limiting ring closely abutting a groove on the lower surface of the steel ring.

[0009] Preferably, the upper surface of the steel ring is welded with four equally spaced lifting rings.

[0010] Preferably, the upper part of the first heating resistance wire has a spiral structure, the lower part of the first heating resistance wire has a conical spiral structure, and the first heating resistance wire is in close contact with the outer surface of the steel inner cup.

[0011] Preferably, a flange is welded to the lower end of the outer steel cup, a flange is welded to the upper end of the steel partition, the flange at the lower end of the outer steel cup is fixed to the flange at the upper end of the electric valve by bolts, the flange at the upper end of the steel partition is fixed to the flange at the lower end of the flow rate measuring tube by bolts, and the flanges at the lower end of the electric valve and the upper end of the flow rate measuring tube are fixed by bolts.

[0012] Preferably, the upper outer surface of the liquid storage tank is fixed with a hanging lug for suspension.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. A rectangular array of distribution cups welded to the bottom of the storage tank facilitates the distribution of molten aluminum into the tank. Electric valves installed at the bottom of the distribution cups regulate the flow rate of the molten aluminum, while an ultrasonic flow meter detects the flow rate within the measuring tube. This allows the controller to programmatically control the opening of the electric valves, achieving precise flow control. Each distribution cup consists of an inner steel cup, an outer steel cup, a first heating resistance wire, an aluminum silicate ceramic fiber layer, and a filter. The first heating resistance wire installed between the inner and outer steel cups heats the molten aluminum stored in the distribution cup, preventing cooling. The aluminum silicate ceramic fiber layer fixed to the outer surface of the outer steel cup provides insulation, reducing heat loss. The inner steel cup contains... The filter element facilitates the filtration of impurities in the molten aluminum, thereby reducing impurities in the finished casting. The distribution pipe consists of a steel pipe, a steel partition, a second heating resistance wire, and a third heating resistance wire. The steel pipe is composed of an inner steel tube and an outer steel tube, with their lower ends integrally formed. The second heating resistance wire installed in the interlayer between the inner steel tube and the steel partition, and the third heating resistance wire installed in the interlayer between the steel partition and the outer steel tube, facilitate the coordinated heating of the molten aluminum in the distribution pipe. When the distribution pipe is inserted into the deep well mold, the second and third heating resistance wires work together to heat the molten aluminum injected into the deep well mold, thus preventing the problem of premature solidification of the molten aluminum due to insufficient mold preheating.

[0015] 2. The filter element consists of a steel ring, steel wire, lifting ring, and limiting ring. The groove on the lower surface of the steel ring fits tightly against the surface of the limiting ring, which is integrally formed on the inner surface of the inner steel cup. This allows the steel ring to be installed inside the inner steel cup. The steel wire welded to the inner ring of the steel ring is used to filter impurities in the molten aluminum. The four limiting rings welded to the upper surface of the steel ring facilitate the use of external steel hooks to lift the filter element, thus achieving the purpose of disassembling the filter element. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the flow divider cup and flow divider tube in this utility model;

[0019] Figure 4 This is a schematic diagram of the components of the flow divider cup, electric valve, flow velocity measuring tube, ultrasonic flow meter, and flow divider tube in this utility model.

[0020] Figure 5 This is a schematic diagram of the filter element structure in this utility model;

[0021] Figure 6 for Figure 2 Enlarged structural diagram at point A;

[0022] Figure 7 for Figure 2 An enlarged structural diagram of point B in the middle.

[0023] Reference numerals: 1. Liquid storage tank; 2. Diverter cup; 21. Inner steel cup; 22. Outer steel cup; 23. First heating resistance wire; 24. Alumina silicate ceramic fiber layer; 25. Filter element; 251. Steel ring; 252. Steel wire; 253. Lifting ring; 254. Limiting ring; 3. Electric valve; 4. Flow rate measuring tube; 41. Ultrasonic flow meter; 5. Diverter tube; 51. Steel pipe; 511. Inner steel pipe; 512. Outer steel pipe; 52. Steel partition; 53. Second heating resistance wire; 54. Third heating resistance wire; 6. Controller; 7. Hanging lug. Detailed Implementation

[0024] The technical solution of this utility model will now be described with reference to the accompanying drawings and embodiments.

[0025] Please see Figure 1-7 This embodiment provides the following technical solution: a precise control device for aluminum liquid flow rate in a deep well casting production line, including a storage tank 1 and a controller 6 installed on the side of the storage tank 1. A rectangular array of flow dividers 2 is welded to the lower part of the storage tank 1. An electric valve 3 for controlling the flow rate of the aluminum liquid is installed at the lower end of the flow dividers 2. A flow rate measuring tube 4 is installed at the lower end of the electric valve 3. An ultrasonic flow meter 41 for detecting the flow rate of the aluminum liquid is installed on the outer surface of the flow rate measuring tube 4. A flow divider 5 for discharging the aluminum liquid is installed at the lower end of the flow rate measuring tube 4.

[0026] The diversion cup 2 includes an inner steel cup 21 located inside, and an outer steel cup 22 is provided outside the inner steel cup 21. The upper and lower ends of the inner steel cup 21 and the outer steel cup 22 are welded and fixed. A first heating resistance wire 23 for heating is provided in the interlayer between the inner steel cup 21 and the outer steel cup 22. An aluminum silicate ceramic fiber layer 24 is fixed on the outer surface of the outer steel cup 22. A removable filter element 25 is installed inside the inner steel cup 21.

[0027] The diversion pipe 5 includes a steel pipe 51, which has a double-layer structure. The inner layer of the steel pipe 51 is a steel inner pipe 511, and the outer layer is a steel outer pipe 512. The lower ends of the steel inner pipe 511 and the steel outer pipe 512 are integrally formed. A steel partition 52 is provided in the interlayer of the steel pipe 51, and the two ends of the steel inner pipe 511 and the steel partition 52 are welded and fixed. A second heating resistance wire 53 for heating is provided in the interlayer between the steel inner pipe 511 and the steel partition 52. A third heating resistance wire 54 is provided in the interlayer between the steel partition 52 and the steel outer pipe 512. The electric valve 3, the ultrasonic flow meter 41, the first heating resistance wire 23, the second heating resistance wire 53, and the third heating resistance wire 54 are all electrically connected to the controller 6.

[0028] In this embodiment, the aluminum liquid poured into the storage tank 1 is distributed in a rectangular array of diversion cups 2 welded to the lower part of the storage tank 1, facilitating the diversion of the aluminum liquid through multiple diversion cups 2. An electric valve 3 installed at the lower end of each diversion cup 2 is used to regulate the flow rate of the aluminum liquid, while an ultrasonic flow meter 41 is used to detect the flow rate of the aluminum liquid in the flow rate measuring tube 4. This allows the controller 6 to programmatically control the opening of the electric valve 3, thereby achieving precise control of the aluminum liquid flow rate. Each diversion cup 2 consists of an inner steel cup 21, an outer steel cup 22, a first heating resistance wire 23, an aluminum silicate ceramic fiber layer 24, and a filter element 25. The first heating resistance wire 23, installed between the inner and outer steel cups 21 and 22, heats the aluminum liquid stored in the diversion cup 2, preventing it from cooling down. The aluminum silicate ceramic fiber layer 24 fixed to the outer surface of the outer steel cup 22 provides thermal insulation, reducing heat loss. The filter element 25 is installed inside the inner steel cup 21. The filter element 25 facilitates the filtration of impurities in the molten aluminum, thereby reducing impurities in the finished aluminum casting. The diversion pipe 5 is composed of a steel pipe 51, a steel partition 52, a second heating resistance wire 53, and a third heating resistance wire 54. The steel pipe 51 is composed of an inner steel pipe 511 and an outer steel pipe 512, with the lower ends of the inner and outer steel pipes integrally formed. The second heating resistance wire 53 and the third heating resistance wire 54 are installed in the interlayer between the inner steel pipe 511 and the steel partition 52, respectively. This allows the second and third heating resistance wires 53 and 54 to work together to heat the molten aluminum in the diversion pipe 5. When the diversion pipe 5 is inserted into the deep well mold, the second and third heating resistance wires 53 and 54 work together to heat the molten aluminum injected into the deep well mold, thus avoiding the problem of premature solidification of the molten aluminum due to insufficient mold preheating.

[0029] Specifically, the filter element 25 includes a steel ring 251, with a steel wire 252 welded to the inner ring of the steel ring 251. A limiting ring 254 is integrally formed on the inner surface of the inner steel cup 21, and the limiting ring 254 is in close contact with the groove opened on the lower surface of the steel ring 251. Four equally spaced lifting rings 253 are welded to the upper surface of the steel ring 251.

[0030] In this embodiment, the filter element 25 is composed of a steel ring 251, a steel wire 252, a lifting ring 253, and a limiting ring 254. The groove on the lower surface of the steel ring 251 is closely fitted to the surface of the limiting ring 254 integrally formed on the inner surface of the inner steel cup 21, thereby enabling the steel ring 251 to be installed inside the inner steel cup 21. The steel wire 252 welded to the inner ring of the steel ring 251 is used to filter impurities in the molten aluminum. The four limiting rings 254 welded to the upper surface of the steel ring 251 facilitate the use of external steel hooks to lift the filter element 25, thereby achieving the purpose of disassembling the filter element 25.

[0031] Specifically, the upper part of the first heating resistance wire 23 has a spiral structure, the lower part of the first heating resistance wire 23 has a conical spiral structure, and the first heating resistance wire 23 is in close contact with the outer surface of the steel inner cup 21.

[0032] Specifically, a flange is welded to the lower end of the outer steel cup 22, a flange is welded to the upper end of the steel partition 52, the flange at the lower end of the outer steel cup 22 is fixed to the flange at the upper end of the electric valve 3 by bolts, the flange at the upper end of the steel partition 52 is fixed to the flange at the lower end of the flow rate measuring tube 4 by bolts, and the flanges at the lower end of the electric valve 3 and the upper end of the flow rate measuring tube 4 are fixed by bolts.

[0033] Specifically, the upper outer surface of the liquid storage tank 1 is fixed with a hanging lug 7 for suspension.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for precise control of aluminum liquid flow rate in a deep well casting production line, comprising a liquid storage tank (1) and a controller (6) disposed on the side of the liquid storage tank (1), characterized in that: The lower part of the liquid storage tank (1) is welded with a rectangular array of diversion cups (2). The lower end of the diversion cups (2) is equipped with an electric valve (3) for regulating the flow rate of the aluminum liquid. The lower end of the electric valve (3) is equipped with a flow rate measuring tube (4). The outer surface of the flow rate measuring tube (4) is equipped with an ultrasonic flow meter (41) for detecting the flow rate of the aluminum liquid. The lower end of the flow rate measuring tube (4) is equipped with a diversion tube (5) for discharging the aluminum liquid. The diversion cup (2) includes an inner steel cup (21) located inside, and an outer steel cup (22) is provided outside the inner steel cup (21). The upper and lower ends of the inner steel cup (21) and the outer steel cup (22) are welded and fixed. A first heating resistance wire (23) for heating is provided in the interlayer between the inner steel cup (21) and the outer steel cup (22). An aluminum silicate ceramic fiber layer (24) is fixed on the outer surface of the outer steel cup (22). A detachable filter element (25) is installed inside the inner steel cup (21). The diversion pipe (5) includes a steel pipe (51), which has a double-layer structure. The inner layer of the steel pipe (51) is a steel inner pipe (511), and the outer layer of the steel pipe (51) is a steel outer pipe (512). The lower ends of the steel inner pipe (511) and the steel outer pipe (512) are integrally formed. A steel partition (52) is provided in the interlayer of the steel pipe (51), and the two ends of the steel inner pipe (511) and the steel partition (52) are welded and fixed. A second heating resistance wire (53) for heating is provided in the interlayer between the steel inner pipe (511) and the steel partition (52). A third heating resistance wire (54) is provided in the interlayer between the steel partition (52) and the steel outer pipe (512). The electric valve (3), the ultrasonic flow meter (41), the first heating resistance wire (23), the second heating resistance wire (53), and the third heating resistance wire (54) are all electrically connected to the controller (6).

2. The molten aluminum flow precision control device for a deep-well casting production line according to claim 1, characterized in that: The filter element (25) includes a steel ring (251), the inner ring of which is welded with a steel wire (252), and the inner surface of the inner steel cup (21) is integrally formed with a limiting ring (254), and the limiting ring (254) is in close contact with the groove opened on the lower surface of the steel ring (251).

3. The molten aluminum flow precision control device for a deep-well casting production line according to claim 2, characterized in that: The upper surface of the steel ring (251) is welded with four equally spaced lifting rings (253).

4. The precise control device for aluminum liquid flow rate in a deep well casting production line according to claim 1, characterized in that: The upper part of the first heating resistance wire (23) is a spiral structure, and the lower part of the first heating resistance wire (23) is a conical spiral structure. The first heating resistance wire (23) is in close contact with the outer surface of the steel inner cup (21).

5. The precise control device for aluminum liquid flow rate in a deep well casting production line according to claim 1, characterized in that: A flange is welded to the lower end of the steel outer cup (22), and a flange is welded to the upper end of the steel partition (52). The flange at the lower end of the steel outer cup (22) is fixed to the flange at the upper end of the electric valve (3) by bolts. The flange at the upper end of the steel partition (52) is fixed to the flange at the lower end of the flow rate measuring tube (4) by bolts. The flanges at the lower end of the electric valve (3) and the upper end of the flow rate measuring tube (4) are fixed by bolts.

6. The precise control device for aluminum liquid flow rate in a deep well casting production line according to claim 1, characterized in that: The upper outer surface of the liquid storage tank (1) is fixed with a hanging lug (7) for suspension.

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