Low-pressure casting machine and low-pressure heat preserving furnace with liquid outlet thereof

Abstract

The utility model relates to a low-pressure casting machine and a low-pressure heat preserving furnace with a liquid outlet thereof. The low-pressure heat preservation furnace comprises a furnace body, a liquid cavity used for containing metal liquid is formed in the furnace body, and the bottom of the liquid cavity is an inclined face. A liquid outlet communicated with the liquid cavity is formed in the bottom of one side face of the furnace body and located in the lowest position of the inclined face. A flange is detachably arranged at the liquid outlet end of the liquid outlet, and a blocking sleeve is arranged at the joint of the flange and the liquid outlet. According to the low-pressure casting machine, the low-pressure heat preserving furnace is arranged in the low-pressure casting machine, a certain inclination is arranged at the bottom of a liquid cavity of the furnace body, and a liquid outlet is formed in the lowest position of the low-pressure heat preserving furnace. When the furnace is shut down or residual liquid in the furnace needs to be cleaned, automatic liquid drainage can be achieved by opening the bottom liquid drainage opening, safety and rapidness are achieved, and labor intensity is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting equipment technical field, concretely relates to a low pressure casting machine and low pressure holding furnace with liquid discharge port thereof. BACKGROUND

[0002] The hub is an important part of a vehicle, and is mainly manufactured into a blank by casting. Currently, the hub is mainly manufactured by a low pressure casting machine in cooperation with a corresponding mold, that is, the aluminum liquid in a holding furnace is injected into a cavity between an upper mold, a lower mold and a side mold under the action of pressure to fill the mold.

[0003] Currently, the holding furnace of the low pressure casting machine adopts an integral fixed holding furnace. The aluminum liquid in the holding furnace is introduced into the cavity of the low pressure mold through the lifting pipe after the pressure is applied to the furnace to realize casting and filling. In view of quality, the impurities precipitated at the bottom of the furnace liquid are prevented from entering the mold. The distance between the bottom of the lifting pipe and the bottom of the holding furnace is 150mm to 200mm, which causes that the aluminum liquid in the furnace cannot be completely used up and remains in the furnace. Since the bottom of the ordinary low pressure casting machine does not have an outlet for discharging the aluminum liquid, the structure is as shown in Figure 4 When the aluminum liquid in the furnace needs to be cleaned each time the machine stops, a special scoop 13 needs to be used to scoop out through the furnace door. This operation is inconvenient, inefficient and unsafe. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the defects of the prior art and provides a low pressure casting machine capable of automatically discharging liquid and saving time and labor, and a low pressure holding furnace with a liquid discharge port.

[0005] The utility model adopts the technical scheme: a low pressure holding furnace with a liquid discharge port, including a furnace body, the inside of the furnace body is a liquid cavity for containing metal liquid, the bottom of the liquid cavity is an inclined surface, the bottom of one side surface of the furnace body is provided with a liquid discharge port in communication with the liquid cavity, the liquid discharge port is located at the lowest part of the inclined surface, the liquid outlet end of the liquid discharge port is detachably provided with a flange, and a plug sleeve is arranged at the connection between the flange and the liquid discharge port.

[0006] Preferably, the inclination of the inclined surface is 3-5°.

[0007] Preferably, the liquid discharge port is funnel-shaped, and the liquid discharge port is obliquely downwardly arranged from the liquid cavity to the furnace wall.

[0008] Preferably, the liquid discharge port includes a drainage channel in communication with the liquid cavity, the drainage channel is provided with a liquid discharge part at the other end relative to the liquid cavity, the flange and the liquid discharge part are detachably connected, and the plug sleeve is arranged between the liquid discharge part and the flange.

[0009] Preferably, the liquid discharging part is trumpet-shaped, the plug sleeve is conical to match the shape of the liquid discharging part, and the flange has a plug head extending outward at one end towards the liquid discharging part to plug the plug sleeve in the liquid discharging part.

[0010] Preferably, the flange is detachably mounted on the outer wall of the furnace body by fastening bolts.

[0011] Preferably, the furnace body is provided with a foot at the bottom, and the furnace body is provided with a liquid container below the liquid discharging port.

[0012] Preferably, the furnace body is provided with a furnace door on the side where the liquid discharging port is located.

[0013] A low-pressure casting machine comprises a low-pressure machine body, and the interior of the low-pressure machine body is provided with the low-pressure holding furnace.

[0014] Preferably, the low-pressure machine body is provided with a mold above the furnace body, the mold is provided with a liquid lifting pipe inserted into the liquid discharging port of the furnace body, and the liquid lifting pipe is connected with the mold cavity and the liquid cavity of the furnace body.

[0015] Compared with the prior art, the low-pressure casting machine has the following advantages:

[0016] The low-pressure holding furnace in the low-pressure casting machine is provided with a certain slope at the bottom of the liquid cavity of the furnace body, and a liquid discharging port is arranged at the lowest position. When the furnace is stopped or the residual liquid in the furnace needs to be cleaned, the bottom liquid discharging port is opened, and automatic liquid discharging can be realized. This design solves the problems of high temperature, heavy workload and insecurity in the treatment of the aluminum liquid in the traditional holding furnace. The aluminum liquid in the furnace can be smoothly discharged by opening the liquid discharging port when needed, which is safe, fast and low in labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the low-pressure holding furnace of the low-pressure casting machine.

[0018] Figure 2 is Figure 1 an enlarged schematic view of A of

[0019] Figure 3 is a structural schematic view of the low-pressure casting machine.

[0020] Figure 4 is a structural schematic view of a common low-pressure casting machine.

[0021] The reference signs in the drawings are as follows:

[0022] 1 - furnace body, 2 - liquid cavity, 21 - inclined surface, 3 - liquid outlet, 31 - drainage channel, 32 - liquid discharge part, 4 - flange, 41 - plug, 42 - fastening bolt, 5 - plug sleeve, 6 - foot, 7 - liquid container, 8 - furnace door, 9 - liquid outlet, 10 - low pressure machine body, 11 - mold, 111 - cavity, 12 - liquid lifting pipe, 13 - ladle, 01 - metal liquid. DETAILED DESCRIPTION

[0023] To deepen the understanding of the utility model, the following will be combined with the embodiment and the drawings to make further detailed description of the utility model. The utility model can be implemented by the following ways:

[0024] REFERENCE Figures 1-2 A low pressure holding furnace with liquid outlet, comprising furnace body 1, the inside of furnace body 1 is liquid cavity 2 for containing metal liquid 01. In order to facilitate the liquid flow out of the bottom of furnace body 1, the bottom of liquid cavity 2 is inclined surface 21, the inclination of inclined surface 21 is 3-5 °. The bottom of the side surface of furnace body 1 is provided with liquid outlet 3 communicated with liquid cavity 2, liquid outlet 3 is located at the lowest part of inclined surface 21, this design can make the liquid remaining in liquid cavity 2 all flow out through liquid outlet 3, the liquid outlet end of liquid outlet 3 is detachably provided with flange 4, the connecting part of flange 4 and liquid outlet 3 is provided with plug sleeve 5, plug sleeve 5 is made of high-grade aluminum silicate fiber. The design of flange 4 and plug sleeve 5 mainly plays a sealing role, so that the metal liquid 01 in furnace body 1 does not flow out from liquid outlet 3 when low pressure casting machine is working.

[0025] In order to drain all the liquid flowing through liquid outlet 3, liquid outlet 3 is funnel-shaped, liquid outlet 3 is obliquely downwardly inclined from liquid cavity 2 to the outside of furnace wall. Specifically, liquid outlet 3 comprises drainage channel 31 communicated with liquid cavity 2, the diameter of drainage channel 31 is 50 mm. Drainage channel 31 is provided with liquid discharge part 32 at the other end relative to liquid cavity 2, flange 4 and liquid discharge part 32 are detachably connected, plug sleeve 5 is arranged between liquid discharge part 32 and flange 4. Liquid discharge part 32 is trumpet-shaped, so that the liquid in drainage channel 31 flows out from liquid discharge part 32 under the action of gravity.

[0026] In order to improve the sealing between the flange 4 and the drain 3, the plug sleeve 5 is tapered to match the shape of the drain 32; the flange 4 extends outwardly at one end towards the drain 32 and has a plug 41 for plugging the plug sleeve 5 into the drain 32. The plug 41 is also tapered to match the shape of the plug sleeve 5. The flange 4 is detachably mounted on the outer wall of the furnace body 1 by fastening bolts 42. The circumference of the flange 4 is provided with a plurality of mounting holes for the fastening bolts 42. The flange 4 of the present embodiment is fixed to the furnace body 1 by 6 fastening bolts 42. The sealing cooperation between the plug sleeve 5 and the flange 4 can prevent the molten aluminum from flowing out during operation.

[0027] In order to facilitate the collection of the molten metal 01 flowing out of the drain 3, the molten metal 01 of the present embodiment is generally molten aluminum. The bottom of the furnace body 1 is provided with a support 6, and the furnace body 1 is provided with an aluminum liquid container 7 below the drain 3, which can be moved at will. The design of the support 6 makes the outlet end of the drain 3 a certain height from the ground, so that the molten aluminum flowing through the drain 3 can smoothly flow into the aluminum liquid container 7. In addition, the furnace body 1 is provided with a furnace door 8 on the side where the drain 3 is located. The top of the furnace body 1 is provided with a liquid outlet 9 for inserting a liquid lifting pipe.

[0028] Referring to Figure 3 A low-pressure casting machine, comprising a low-pressure machine body 10, the inside of the low-pressure machine body 10 is provided with the low-pressure holding furnace described above. The low-pressure machine body 10 is provided with a mold 11 above the furnace body 1, and the mold 11 is provided with a liquid lifting pipe 12 inserted into the liquid outlet 9 of the furnace body 1. The liquid lifting pipe 12 communicates the cavity 111 of the mold 11 and the liquid chamber 2 of the furnace body 1.

[0029] Principle of use: when the low-pressure casting machine is working, the flange 4 cooperates with the plug sleeve 5 to plug the drain 3, and the flange 4 is fixed to the furnace body 1 by the fastening bolts 42, at this time the furnace can add molten aluminum according to the needs of the work to carry out pressure casting work. When it is necessary to clean the molten aluminum in the furnace, the fastening bolts 42 of the flange 4 are loosened, the flange 4 is removed, the plug sleeve 5 is poked open, and the molten aluminum in the furnace body 1 is discharged through the drain 3 to the aluminum liquid container 7 outside the furnace. Because the bottom of the liquid chamber 2 of the furnace body 1 is provided with a slope, it can ensure that the molten aluminum flows smoothly to the drain 3; and the inclined arrangement of the drain 3 can ensure that the molten aluminum can completely flow out of the drain 3.

[0030] Finally, it should be pointed out that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A low pressure holding furnace with a liquid discharge port, characterized by comprising: The application relates to a liquid outlet device of a low-pressure holding furnace, which comprises a furnace body (1), wherein the inside of the furnace body (1) is provided with a liquid cavity (2) for containing liquid metal (01), the bottom of the liquid cavity (2) is provided with an inclined surface (21), the bottom of one side of the furnace body (1) is provided with a liquid outlet (3) communicated with the liquid cavity (2), the liquid outlet (3) is located at the lowest position of the inclined surface (21), the liquid outlet end of the liquid outlet (3) is detachably provided with a flange (4), and the connecting position of the flange (4) and the liquid outlet (3) is provided with a plug sleeve (5).

2. The low pressure holding furnace with a liquid discharge port according to claim 1, wherein The inclination of the inclined surface (21) is 3-5 degrees.

3. A low pressure holding furnace with a liquid drain according to claim 2, wherein The liquid outlet (3) is funnel-shaped, and the liquid outlet (3) is obliquely and downwardly arranged from the liquid cavity (2) to the furnace wall.

4. The low pressure holding furnace with a liquid discharge port according to claim 3, characterized in that, The liquid outlet (3) comprises a drainage channel (31) communicated with the liquid cavity (2), the drainage channel (31) is provided with a liquid discharge part (32) at the other end relative to the liquid cavity (2), the flange (4) is detachably connected with the liquid discharge part (32), and the plug sleeve (5) is arranged between the liquid discharge part (32) and the flange (4).

5. A low pressure holding furnace with a liquid drain according to claim 4, wherein The liquid discharge part (32) is trumpet-shaped, the plug sleeve (5) is conical and matched with the shape of the liquid discharge part (32), and the flange (4) is outwardly extended at one end towards the liquid discharge part (32) and is provided with a plug head (41) for plugging the plug sleeve (5) in the liquid discharge part (32).

6. A low pressure holding furnace with a liquid drain according to any one of claims 1 to 5, characterized in that, The flange (4) is detachably mounted on the outer wall of the furnace body (1) through fastening bolts (42).

7. A low pressure holding furnace with a liquid drain according to any one of claims 1 to 5, characterized in that, The bottom of the furnace body (1) is provided with a supporting leg (6), and the furnace body (1) is provided with an aluminum liquid container (7) below the liquid outlet (3).

8. A low pressure holding furnace with a liquid drain according to claim 7, characterized in that, The furnace body (1) is provided with a furnace door (8) on the side where the liquid outlet (3) is located.

9. A low pressure casting machine characterized by, The application further relates to a low-pressure machine body (10), and the inside of the low-pressure machine body (10) is provided with the low-pressure holding furnace according to any one of claims 1-8.

10. A low pressure casting machine according to claim 9, wherein The low-pressure machine body (10) is provided with a mold (11) above the furnace body (1), the bottom of the mold (11) is provided with a liquid lifting pipe (12) inserted into the liquid outlet (9) of the furnace body (1), and the liquid lifting pipe (12) is communicated with a cavity (111) of the mold (11) and the liquid cavity (2) of the furnace body (1).

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