Ejection mechanism of low-pressure casting machine

Abstract

The utility model relates to an ejection mechanism of a low-pressure casting machine, which comprises a mounting plate, an ejection rod connecting plate driven by a driving oil cylinder is arranged below the mounting plate, a plurality of ejection rods are arranged below the ejection rod connecting plate, a guide column is arranged below the mounting plate, the guide column penetrates through the ejection rod connecting plate, and the ejection rod connecting plate is connected with the ejection rod connecting plate. And the ejector rod connecting plate ascends and descends along the guide columns. When in use, the ejection mechanism is mounted on a movable mold mechanism, after casting is completed, the ejection rod connecting plate is driven by the driving oil cylinder, so that the ejection rod connecting plate drives the ejection rod to eject downwards, a product is ejected out of a mold, the operation is convenient, and the ejection is stable and reliable.

Description

Technical Field

[0001] The utility model relates to a component of a low-pressure casting machine, in particular to an ejection mechanism of a low-pressure casting machine, belonging to the technical field of casting equipment. Background Art

[0002] A low-pressure casting machine is a general equipment for low-pressure casting of aluminum alloys, and can be widely used in the production of aluminum alloy castings in the automotive, motorcycle, instrument, textile machinery and aerospace industries. The low-pressure casting machine consists of a main machine, a hydraulic system, a pool-type holding furnace, a liquid surface pressurizing device, an electrical control system and a mold cooling system, etc. In the prior art, after the casting is completed, when the mold is opened, the stability is poor, and it is very troublesome to take the product, which brings certain difficulties to the production. Therefore, the present utility model is proposed. Content of the Utility Model

[0003] Aiming at the above technical problems of the prior art, the purpose of the present utility model is to provide an ejection mechanism of a low-pressure casting machine, which realizes the goal of ejecting the product from the mold, and is convenient to operate, and the ejection is stable and reliable.

[0004] To achieve the above purpose, the present utility model is realized by the following technical solutions:

[0005] An ejection mechanism of a low-pressure casting machine includes a mounting plate. Below the mounting plate, there is a ejector rod connecting plate driven by a driving oil cylinder. Below the ejector rod connecting plate, there are several ejector rods. Guide columns are arranged below the mounting plate, and the guide columns pass through the ejector rod connecting plate, and the ejector rod connecting plate moves up and down along the guide columns.

[0006] Guide sleeves are arranged at the ends of the guide columns.

[0007] The driving oil cylinder is provided with an oil cylinder output shaft, and the oil cylinder output shaft is connected with the ejector rod connecting plate.

[0008] An oil cylinder flange is arranged between the driving oil cylinder and the ejector rod connecting plate.

[0009] There are 6 guide columns, and the 6 guide columns are respectively arranged on both sides of the mounting plate and the ejector rod connecting plate.

[0010] There are 12 ejector rods, and the 12 ejector rods are distributed around the ejector rod connecting plate.

[0011] There are 2 driving oil cylinders, and the 2 driving oil cylinders are arranged side by side on the mounting plate.

[0012] A loosening prevention mechanism is arranged at the connection between the ejector rod and the ejector rod connecting plate.

[0013] The loosening prevention mechanism is a loosening prevention bolt, and a tensioning gasket is arranged at the connection between the loosening prevention bolt and the ejector rod connecting plate.

[0014] The beneficial effects of the present utility model are as follows:

[0015] The present utility model is an ejection mechanism for a low-pressure casting machine. When in use, it is installed on the moving die mechanism. After casting is completed, the ejector rod connecting plate is driven by the driving oil cylinder, so that the ejector rod connecting plate drives the ejector rod to move downward with the guide column as the guide, achieving the goal of ejecting the product from the mold, and the operation is convenient, and the ejection is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a front view structural schematic diagram of the present utility model;

[0018] Figure 3 is a sectional view structural schematic diagram of the present utility model;

[0019] Figure 4 is a schematic diagram of the positional relationship between the guide column and the guide sleeve in the present utility model;

[0020] Figure 5 is a structural schematic diagram of the anti-loosening mechanism in the present utility model;

[0021] Figure 6 is a schematic diagram of the installation positional relationship of the present utility model installed on a low-pressure casting machine;

[0022] Among them, 1 is the mounting plate, 2 is the driving oil cylinder, 3 is the guide column, 4 is the ejector rod connecting plate, 5 is the ejector rod, 6 is the guide sleeve, 7 is the moving template, 8 is the oil cylinder output shaft, 9 is the oil cylinder flange, 10 is the anti-loosening bolt, and 11 is the tensioning gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described below in conjunction with specific embodiments, but the protection scope of the present utility model is not limited thereto.

[0024] As Figures 1-5 shown, the ejection mechanism of the present utility model for a low-pressure casting machine includes a mounting plate 1. Below the mounting plate 1, there is an ejector rod connecting plate 4 driven by a driving oil cylinder 2. The driving oil cylinder 2 is provided with an oil cylinder output shaft 8, and the oil cylinder output shaft 8 is connected to the ejector rod connecting plate 4. An oil cylinder flange 9 is provided between the driving oil cylinder 2 and the ejector rod connecting plate 4. Below the ejector rod connecting plate 4, there are several ejector rods 5. Below the mounting plate 1, there are guide columns 3. The ends of the guide columns 3 are provided with guide sleeves 6. There are 6 guide columns 3, and the 6 guide columns 3 are respectively arranged on both sides of the mounting plate 1 and the ejector rod connecting plate 4. There are 12 ejector rods 5, and the 12 ejector rods 5 are distributed around the ejector rod connecting plate 4. The guide columns 3 pass through the ejector rod connecting plate 4, and the ejector rod connecting plate 4 moves up and down along the guide columns 3.

[0025] Further provided, a loosening prevention mechanism is provided at the connection between the ejector rod 5 and the ejector rod connecting plate 4 in the present utility model. The loosening prevention mechanism can be a loosening prevention bolt 10, and a tensioning gasket 11 is provided at the connection between the loosening prevention bolt 10 and the ejector rod connecting plate 4.

[0026] Preferably, there are 2 driving oil cylinders 2 in the present utility model. The 2 driving oil cylinders 2 are arranged in parallel on the mounting plate 1, and double oil cylinders are used for ejection to meet the ejection of wide-body castings.

[0027] More preferably, the ejector rod 5 in the present utility model is detachable and its length is freely adjustable. The height is adjusted accordingly according to different molds; the ejector rod 5 is installed on the ejector rod connecting plate 4, and the ejector rod connecting plate 4 is guided by 6 guide posts 3 to ensure stable and reliable ejection.

[0028] As Figure 6 As shown, during use, the present utility model is installed on the moving template 7 of a low-pressure casting machine, and the ejector rod 5 passes through the moving template 7. After casting is completed, the ejector rod connecting plate 4 is driven by the driving oil cylinder 2, so that the ejector rod connecting plate 4 moves up and down guided by the guide posts 3, thereby driving the ejector rod 5 to push downwards, achieving the goal of ejecting the product from the mold, and the operation is convenient, and the ejection is stable and reliable.

[0029] The above embodiments are only used to explain the inventive concept of the present utility model, rather than a limitation on the protection scope of the rights of the present utility model. Any non-substantive modification made to the present utility model using this concept shall fall within the protection scope of the present utility model.

Claims

1. An ejection mechanism for a low-pressure casting machine, characterized in that: It comprises a mounting plate, a push rod connecting plate driven by a driving cylinder is arranged below the mounting plate, a plurality of push rods are arranged below the push rod connecting plate, a guide column is arranged below the mounting plate, the guide column passes through the push rod connecting plate, and the push rod connecting plate rises and falls along the guide column.

2. The ejection mechanism of the low pressure casting machine according to claim 1, characterized in that: A guide sleeve is provided at the end of the guide column.

3. The ejection mechanism of the low pressure casting machine according to claim 1, characterized in that: The driving oil cylinder is provided with an oil cylinder output shaft, and the oil cylinder output shaft is connected to the push rod connecting plate.

4. The ejection mechanism of the low pressure casting machine according to claim 1 or 3, characterized in that: A cylinder flange is arranged between the driving cylinder and the push rod connecting plate.

5. The ejection mechanism of the low pressure casting machine according to claim 1 or 2, characterized in that: There are six guide columns, which are respectively arranged on both sides of the mounting plate and the ejector rod connecting plate.

6. The ejection mechanism of the low pressure casting machine as claimed in claim 5, characterized in that: There are 12 push rods, which are distributed around the push rod connecting plate.

7. The ejection mechanism of the low pressure casting machine as claimed in claim 5, characterized in that: There are two driving oil cylinders, which are arranged in parallel on the mounting plate.

8. The ejection mechanism of the low pressure casting machine according to claim 1, characterized in that: An anti-loosening mechanism is provided at the connection between the push rod and the push rod connecting plate.

9. The ejection mechanism of the low pressure casting machine as claimed in claim 8, characterized in that: The anti-loosening mechanism is an anti-loosening bolt, and a tensioning gasket is provided at the connection between the anti-loosening bolt and the top rod connecting plate.

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