Preheating device for aluminum ingot mold

Abstract

The utility model provides a preheating device for aluminum ingot molds, which comprises a conveying table, a plurality of cooling molds arranged at the upper end of the conveying table, a burner arranged at the tail end of the conveying table, and an adjusting mechanism arranged on the conveying table and connected with a preheating cover, the burner is arranged in the preheating cover, and the cooling molds are arranged on the conveying table. The position of the combustor can be changed along with the preheating cover, and the adjusting mechanism comprises an angle adjusting mechanism and a distance adjusting mechanism. According to the preheating device for the aluminum ingot mold, when the mold needs to be preheated, only the natural gas burner needs to be turned on, the natural gas burner preheats the mold to the required temperature through the automatic control system, the angle and the injection amount are adjusted, continuous operation can be achieved, safety is greatly improved, a large amount of labor force is saved, and stability and precision during working are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum ingot smelting tools, in particular to a preheating device for an aluminum ingot mold. Background Art

[0002] Aluminum ingot molds are mostly made by sand casting, and their temperature will affect the product's appearance quality, activity, shrinkage, injection cycle and deformation. Too low mold temperature will have different effects on different materials. If the aluminum liquid is directly poured into the mold at room temperature, the huge temperature difference will cause the quality of the aluminum liquid to deteriorate after molding. Therefore, the mold needs to be preheated and heated in the early stage of pouring the aluminum liquid to reduce the impact of the temperature difference; the commonly used mold preheating method is to manually heat the mold with a handheld flamethrower or light charcoal, which is simple; however, the operating area of ​​the flamethrower is limited, and the conveying speed of the mold is fast, and the manual flame preheating is uneven. Because it is a manual open flame operation, there are safety hazards. Therefore, a preheating device for aluminum ingot molds is proposed to solve the above problems. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a preheating device for an aluminum ingot mold, which has the advantage of a stable drying effect.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a preheating device for aluminum ingot molds, comprising a conveyor platform, a plurality of cooling molds are provided at the upper end of the conveyor platform, a burner is provided at the lower end of the conveyor platform, and an adjustment mechanism is also included. The adjustment mechanism is arranged on the conveyor platform and is connected to a preheating cover. The burner is arranged in the preheating cover so that the burner can change its position following the preheating cover. The adjustment mechanism includes an angle adjustment mechanism and a distance adjustment mechanism.

[0005] Furthermore, the angle adjustment mechanism includes a rocker and a crankshaft, the rocker is hinged to the conveying platform, the crankshaft is rotatably connected to the conveying platform, and a connecting rod is rotatably connected between the rocker and the crankshaft, so that when the crankshaft rotates a full circle, the rocker is driven to swing back and forth through the connecting rod.

[0006] Furthermore, the distance adjustment mechanism includes a screw and a transmission rod, the rocker is hollow and provided with threads, the screw is threadedly connected inside the rocker, one end of the transmission rod is fixedly connected to the preheating cover, and the other end is rotatably connected to the screw through a bearing.

[0007] Furthermore, the burner has a plurality of flame jets, which are evenly distributed on each inner wall of the preheating hood.

[0008] Furthermore, the burner is a gas burner, which includes a premixing mechanism.

[0009] Furthermore, the side walls of the preheating cover are filled with a heat insulation layer.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0011] The preheating device for aluminum ingot molds only needs to turn on the natural gas burner when the mold needs to be preheated. The natural gas burner preheats the mold to the required temperature through an automatic control system, and adjusts the appropriate flame angle and distance through an adjustment mechanism, so that the heating is more uniform and the temperature is controlled more accurately. After adjusting the angle, the distance of the flame point and the injection amount, continuous operation can be carried out, which greatly improves safety, saves a lot of labor, and ensures stability and accuracy during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 A reference diagram of the first use state of the preheating cover;

[0014] Figure 3 A reference diagram of the second use state of the preheating hood;

[0015] Figure 4 This is a diagram of the angle adjustment mechanism of the utility model;

[0016] Figure 5 This is a diagram of the distance adjustment mechanism of the utility model.

[0017] In the figure: 1. conveying table; 2. cooling mold; 3. adjustment mechanism; 31. angle adjustment mechanism; 311. rocker; 312. connecting rod; 313. crankshaft; 32. distance adjustment mechanism; 321. screw; 322. transmission rod; 4. preheating hood; 41. gas burner. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1 and 4 -5, a preheating device for aluminum ingot molds in the present application includes a conveying platform 1, on which a conveying mechanism for conveying the mold is arranged, such as a conveyor belt connected by a motor drive or other existing mechanisms capable of conveying the mold. A plurality of cooling molds 2 are arranged at the upper end of the conveying platform 1, so that a burner is arranged at the end of the conveying platform 1, and also includes an adjusting mechanism 3, which is arranged on the conveying platform 1 and is connected to a preheating hood 4, in which a burner is arranged, so that the burner can change position following the preheating hood 4, and the adjusting mechanism 3 includes an angle adjusting mechanism 31 and a distance adjusting mechanism 32.

[0020] The device reduces the labor intensity of heating work by arranging a burner instead of manually heating the mold. The preheating hood 4 can prevent the heat from directly escaping after the flame is sprayed on the mold, thereby increasing the preheating efficiency. The adjustment mechanism 3 forms a transmission connection with the burner, so that the angle and distance of the flame heating the mold during preheating can be adjusted, which is more suitable for the heating requirements during preheating and avoids uneven heating or overheating of the mold, which leads to poor forming of aluminum liquid.

[0021] Furthermore, the angle adjustment mechanism 31 includes a rocker arm 311 and a crankshaft 313. The rocker arm 311 is hinged to the conveyor platform 1, and the crankshaft 313 is rotatably connected to the conveyor platform 1. A connecting rod 312 is rotatably connected between the rocker arm 311 and the crankshaft 313, so that when the crankshaft 313 rotates a full circle, the rocker arm 311 is driven to swing back and forth through the connecting rod 312.

[0022] The device is provided with components such as a crankshaft 313 and a rocker 311 so that the rocker 311 swings when the crankshaft 313 rotates. Since the rocker 311 is connected to the preheating cover 4, the burner swings with the rocker 311. The crankshaft 313 can be driven to rotate by a servo motor. Therefore, when in use, the position of the rocker 311 can be changed by adjusting the position of the crankshaft 313, thereby changing the angle of the flame heating the mold.

[0023] Furthermore, the distance adjustment mechanism 32 includes a screw 321 and a transmission rod 322. The rocker 311 is hollow and provided with threads. The screw 321 is threadedly connected in the rocker 311. One end of the transmission rod 322 is fixedly connected to the preheating cover 4, and the other end is rotationally connected to the screw 321 through a bearing.

[0024] The device sets the rocking arm 311 as a sleeve with a thread, so that the screw 321 can rotate and rise and fall inside the rocking arm 311. Since the transmission rod 322 is connected to the screw 321 through a bearing, it neither affects the rotation of the screw 321 nor produces relative movement with the screw 321. That is, when the screw 321 rotates, the transmission rod 322 can rise and fall with the screw 321 to drive the burner in the preheating cover 4 to rise and fall, thereby changing the distance between the ignition point and the mold, thereby achieving the effect of adjusting the ignition distance while maintaining the angle.

[0025] Furthermore, the burner has a plurality of flame jets, which are evenly distributed on each inner wall of the preheating cover 4 .

[0026] The device sets multiple ignition points so that a large area of ​​the mold is heated at the same time, thereby increasing the preheating efficiency.

[0027] Furthermore, the burner is a gas burner 41, which includes a premixing mechanism.

[0028] The gas burner 41 provided in the device adopts a premixed combustion technology. Inside the burner, the fuel and air are premixed to form a combustible gas, which is then ignited by an igniter and burns in the combustion chamber to release heat energy. The gas control system can monitor parameters such as gas flow, pressure, and temperature, so as to accurately control the gas supply and combustion quality. The fan can provide the required oxygen to the combustion chamber to ensure the full progress of the combustion process. The heat exchanger can transfer the heat energy generated by the combustion of the gas to the medium that needs to be heated, such as air, water, etc. The gas burner 41 also has functions such as automatic ignition, automatic adjustment, and automatic protection. It can automatically shut down or alarm in the event of abnormal gas supply, fan failure, etc., to ensure the safety of equipment and personnel.

[0029] Furthermore, the side walls of the preheating cover 4 are filled with a heat insulation layer.

[0030] The device reduces heat loss when the mold is preheated by spraying fire by setting a heat insulation layer, such as heat insulation cotton and other materials.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A preheating device for aluminum ingot molds, comprising a conveyor platform (1), a plurality of cooling molds (2) are arranged at the upper end of the conveyor platform (1), and a burner is arranged at the end of the conveyor platform (1), characterized in that: The invention also comprises an adjusting mechanism (3), wherein the adjusting mechanism (3) is arranged on the conveying platform (1) and is connected to the preheating cover (4), wherein the burner is arranged in the preheating cover (4) so ​​that the burner can change its position following the preheating cover (4), and the adjusting mechanism (3) comprises an angle adjusting mechanism (31) and a distance adjusting mechanism (32).

2. A preheating device for aluminum ingot mold according to claim 1, characterized in that: The angle adjustment mechanism (31) comprises a rocker (311) and a crankshaft (313); the rocker (311) is hinged to the conveying platform (1); the crankshaft (313) is rotatably connected to the conveying platform (1); a connecting rod (312) is rotatably connected between the rocker (311) and the crankshaft (313), so that when the crankshaft (313) rotates a full circle, the rocker (311) is driven to swing back and forth through the connecting rod (312).

3. A preheating device for aluminum ingot mold according to claim 2, characterized in that: The distance adjustment mechanism (32) comprises a screw rod (321) and a transmission rod (322); the rocker (311) is hollow and provided with threads; the screw rod (321) is threadedly connected inside the rocker (311); one end of the transmission rod (322) is fixedly connected to the preheating cover (4); and the other end is rotationally connected to the screw rod (321) via a bearing.

4. A preheating device for aluminum ingot mold according to claim 1, characterized in that: The burner has a plurality of flame injection ports which are evenly distributed on each inner wall of the preheating cover (4).

5. A preheating device for aluminum ingot mold according to claim 4, characterized in that: The burner is a gas burner (41) which comprises a premixing mechanism.

6. A preheating device for aluminum ingot mold according to claim 1, characterized in that: The side walls of the preheating cover (4) are filled with a heat insulation layer.

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