A mold preheating device for a casting aluminum alloy ingot product casting production line

Abstract

The utility model discloses a mould preheating device for casting aluminum alloy ingot product casting production line belongs to foundry device technical field, including flame spray gun, the flame spray gun is used for placing the below chain conveyor, and the two chains of chain conveyor are fixedly connected with a plurality of moulds, and the multiple nozzles in the flame spray gun are aligned any mould and carry out the baking, the cover shell, the cover shell top is open and is located the below chain conveyor, and the cover shell covers and is located the multiple nozzles outside the flame spray gun, and the cover shell one side has detachable switch door. The utility model passes through the cover shell and makes the heat gathering body around the nozzle, and the heat concentrates and heats the mould, reduces the loss of heat along with the air flow, improves the heat utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, and in particular to a mold preheating device for a casting production line for aluminum alloy ingot products. Background Technology

[0002] In the casting process, the casting mold needs to be preheated to a certain temperature before casting to prevent the molten aluminum from cooling rapidly due to the mold temperature being too low during pouring. This controls the solidification process of the molten aluminum, reduces the risk of shrinkage cavities, and minimizes thermal stress. Current technology typically uses natural gas as fuel and a flame gun to heat the mold. However, the flame from the flame gun not only heats the mold but also heats the surrounding air. This heat is dissipated with the airflow, increasing heat loss and energy consumption.

[0003] Therefore, a mold preheating device for casting aluminum alloy ingot products is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a mold preheating device for a casting production line for aluminum alloy ingots, which aims to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a mold preheating device for a casting production line for aluminum alloy ingots, comprising:

[0006] A flame gun is used to place below a chain conveyor, wherein several molds are fixed between two chains of the chain conveyor, and multiple nozzles in the flame gun are aimed at any mold for heating.

[0007] A cover, the top of which is open and located below the chain conveyor, covers the multiple nozzles of the flame gun, and has a removable door on one side.

[0008] Preferably, the bottom of the cover is supported on the ground by support legs, and one side of the cover is open and detachably connected to the switch door by multiple bolts.

[0009] Preferably, the bottom of the cover has multiple through slots on the side near the switch door, and the multiple through slots are respectively arranged to correspond one-to-one with the multiple nozzles in the flame gun. Multiple baffles are fixed to the switch door, and the multiple baffles are respectively arranged to correspond one-to-one with the multiple through slots and are slidably connected. The nozzle in the flame gun is located between the side wall of the through slot and the baffle.

[0010] Preferably, the side of the through groove away from the switch door and the side of the baffle away from the switch door are both semi-circular arcs, and the two semi-circular arcs together form a circular hole that matches the nozzle in the flame gun.

[0011] Preferably, the cover consists of a heat insulation layer and a support layer from the inside out.

[0012] The present invention discloses the following technical effects: the nozzle of the flame gun sprays flames to preheat the mold. Since the cover is placed outside the nozzle, the heat can be concentrated around the nozzle, so that the heat is concentrated to heat the mold, reducing the loss of heat with the air flow and improving the heat utilization rate. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the cover in this utility model;

[0016] Figure 3 This is a schematic diagram of the mold structure in this utility model.

[0017] In the diagram: 1. Flame gun; 2. Chain conveyor; 3. Mold; 4. Cover; 5. Opening door; 6. Support leg; 7. Bolt; 8. Through groove; 9. Baffle; 10. Semi-circular arc; 11. Solenoid valve; 12. Pressure gauge; 13. Controller; 14. Temperature sensor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Reference Figures 1-3 This utility model provides a mold preheating device for a casting production line of aluminum alloy ingot products, comprising:

[0021] Flame gun 1 is placed below chain conveyor 2. Several molds 3 are fixed between the two chains of chain conveyor 2. Multiple nozzles in flame gun 1 are aimed at any mold 3 for baking.

[0022] The cover 4 has an open top and is located below the chain conveyor 2. The cover 4 covers the multiple nozzles of the flame gun 1. The cover 4 has a detachable switch door 5 on one side.

[0023] The flame gun 1 mainly includes a gun tube, a nozzle, and an ignition device. The gun tube is connected to a gas pipeline system, which includes pipelines for supplying natural gas and compressed air. Solenoid valves 11 and pressure gauges 12 are installed on the natural gas and compressed air pipelines, respectively. The natural gas pipeline is connected to a high-pressure gas cylinder or a natural gas pipeline supply system, and the compressed air pipeline is connected to an air compressor. The nozzle is responsible for mixing the gases and spraying a stable flame. The ignition device includes an electric spark plug or a piezoelectric igniter for igniting the gas mixture. A controller 13 is also provided, which regulates the air compressor, solenoid valves 11, etc., thereby controlling the gas flow rate and ratio, and thus adjusting the flame size and temperature (specific details are existing technology and will not be elaborated here).

[0024] The chain conveyor 2 includes a frame with two rotating shafts rotatably connected to it. Sprockets are fixed to both ends of the shafts. Chains mesh on the two sprockets on the same side. A geared motor is fixed to the frame and connected to either shaft via a coupling to drive the chain transmission. Multiple molds 3 are fixed between the two chains. A support plate is provided under the chain and fixed to the frame to support the chain during the conveying process.

[0025] In this embodiment, the top of the casting mold 3 has multiple pouring grooves, and the bottom is fixed with multiple temperature sensors 14. The temperature sensors 14 are electrically connected to the controller 13. The temperature sensors 14 are used to sense the surface temperature of the mold and transmit the signal to the controller 13. A timer is also provided. When the flame gun 1 is turned on to preheat the mold 3, the timer starts to count. When the predetermined time or predetermined temperature range is reached, the controller 13 controls the flame gun 1 to turn off.

[0026] During the preheating process of the flame gun 1 on the mold 3, since the cover 4 is placed outside the nozzle, the heat can be concentrated around the nozzle, so that the heat is concentrated to heat the mold 3, reducing the loss of heat with the air flow and improving the heat utilization rate.

[0027] In some alternative embodiments, the bottom of the housing 4 is supported on the ground by a support leg 6, and one side of the housing 4 is open and detachably connected to the switch door 5 by a plurality of bolts 7.

[0028] In some optional embodiments, a plurality of through slots 8 are provided on the bottom side of the cover 4 near the switch door 5. The plurality of through slots 8 are configured one-to-one with a plurality of nozzles in the flame gun 1. A plurality of baffles 9 are fixedly connected to the switch door 5. The plurality of baffles 9 are configured one-to-one with a plurality of through slots 8 and are slidably connected. The nozzle in the flame gun 1 is located between the side wall of the through slot 8 and the baffle 9.

[0029] The opening and closing door 5 facilitates the maintenance and replacement of internal structures such as nozzles and nozzle pipes. Multiple through slots 8 are provided at the bottom of the cover 4 to facilitate the removal and placement of the cover 4 without interfering with the nozzles and nozzle pipes.

[0030] In some alternative embodiments, the side of the through groove 8 away from the switch door 5 and the side of the baffle 9 away from the switch door 5 are both semi-circular arcs 10, and the two semi-circular arcs 10 together form a circular hole that matches the nozzle in the flame gun 1.

[0031] In some alternative embodiments, the housing 4 consists of an insulation layer and a support layer from the inside out.

[0032] In some alternative embodiments, the nozzles in the flame gun 1 can be arranged in multiple rows, thereby preheating multiple molds 3 simultaneously and increasing the preheating range.

[0033] In use, the flame gun 1 is activated by the controller 13, and the flame is emitted from the nozzle to preheat the mold 3. The temperature sensor 14 senses the surface temperature of the mold 3 and transmits the information to the controller 13. When the preheating temperature or heating time is reached, the flame gun 1 is turned off. The chain conveyor 2 is started to transport the mold 3 forward, conveying the unheated mold above the flame gun 1 for preheating. After preheating, the mold 3 is flipped upward during the transport process, and the molten aluminum in the melting furnace is poured into the various casting grooves of the mold through the casting device (not shown in the figure). Then, it is cooled and shaped by the cooling system, and then removed and transported to complete the subsequent processes.

[0034] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A mold preheating device for use in a casting production line for aluminum alloy ingots, characterized in that, include: A flame gun (1) is used to be placed below a chain conveyor (2). Several molds (3) are fixed between the two chains of the chain conveyor (2). Multiple nozzles in the flame gun (1) are aimed at any mold (3) for baking. The cover (4) has an open top and is located below the chain conveyor (2). The cover (4) covers the multiple nozzles of the flame gun (1). The cover (4) has a removable switch door (5) on one side.

2. The mold preheating device for a casting production line of aluminum alloy ingots according to claim 1, characterized in that: The bottom of the cover (4) is supported on the ground by the support legs (6), and one side of the cover (4) is open and detachably connected to the switch door (5) by multiple bolts (7).

3. The mold preheating device for a casting production line of aluminum alloy ingots according to claim 2, characterized in that: The bottom of the cover (4) near the side of the switch door (5) is provided with multiple through slots (8). The multiple through slots (8) are respectively arranged with multiple nozzles in the flame gun (1). Multiple baffles (9) are fixed on the switch door (5). The multiple baffles (9) are respectively arranged with multiple through slots (8) and are slidably connected. The nozzle in the flame gun (1) is located between the side wall of the through slot (8) and the baffle (9).

4. The mold preheating device for a casting production line of aluminum alloy ingots according to claim 3, characterized in that: The side of the through groove (8) away from the switch door (5) and the side of the baffle (9) away from the switch door (5) are both semi-circular arcs (10), and the two semi-circular arcs (10) together form a circular hole that matches the nozzle in the flame gun (1).

5. The mold preheating device for a casting production line of aluminum alloy ingots according to claim 1, characterized in that: The cover (4) consists of an insulation layer and a support layer from the inside out.

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