A low pressure casting mold with a flip side

Abstract

A kind of low-pressure casting mould's turnover side mould, including side mould, side mould seat, the side mould is fixedly connected with side mould seat, side mould is used to cooperate with lower mould, upper mould and form cavity, a oil cylinder support is fixedly installed on mould base, the side mould seat is slidably fitted on the slide rail of oil cylinder support, an oil cylinder is fixed on the outside of oil cylinder support, the piston rod of the oil cylinder is hingedly fixed with side mould seat by passing through oil cylinder support, guiding device is arranged on the side mould seat, limiting device is arranged on the oil cylinder support, the position of guiding device and limiting device corresponds, the oil cylinder drives side mould seat to slide, so that guiding device and limiting device contact and form limiting guide structure, realize side mould turnover.

Description

Technical Field

[0001] This utility model relates to the field of low-pressure casting molds, specifically to a flipping side mold for low-pressure casting molds. Background Technology

[0002] Existing large low-pressure casting molds used for casting subframes require the side molds to be coated with paint to protect them from direct exposure to high-temperature molten aluminum, thus improving the surface finish of the casting. If an insulating coating is used, it can also insulate areas prone to incomplete casting, reducing the likelihood of incomplete casting and improving the casting yield. However, during the subframe casting process, the coating on the side molds is easily worn or even peels off. If recoating is not done promptly, it can cause defects such as localized wrinkles and air pockets in the casting, and also affect the service life of the mold. However, the side molds of this type of large low-pressure casting mold used for manufacturing subframes can only move left and right on the slide rails set on the base and cannot be completely withdrawn. Therefore, when the paint under the side mold falls off or thicker spraying is required, it is difficult to spray directly. At this time, the side mold or even the entire mold needs to be removed from the machine, the paint needs to be sprayed again, and then the mold needs to be baked back on the machine for production, which seriously affects the production cycle. In addition, the space between the bottom of the side mold and the lower mold is small. After foreign objects such as sand cores and aluminum chips accumulate in this space of the lower mold, they are not easy to clean. These foreign objects will cause the mold to not close properly, resulting in problems such as aluminum leakage and large flash. Summary of the Invention

[0003] To address the aforementioned problems, this utility model provides a flipping side mold for low-pressure casting molds. Driven by a hydraulic cylinder, the side mold base is raised through the cooperation of a limiting device and a guiding device, thereby enabling the removal of coating material from the lower side of the side mold and the cleaning of foreign matter accumulated between the lower side mold and the lower mold.

[0004] The technical solution of this utility model is as follows: a flipping side mold for a low-pressure casting mold, including a side mold and a side mold base. The side mold and the side mold base are fixedly connected. The side mold is used to cooperate with the lower mold and the upper mold to form a cavity. A hydraulic cylinder bracket is installed and fixed on the mold base. The side mold base is slidably fitted on the slide rail of the hydraulic cylinder bracket. A hydraulic cylinder is fixed on the outside of the hydraulic cylinder bracket. The piston rod of the hydraulic cylinder passes through the hydraulic cylinder bracket and is hinged and fixed to the side mold base. A guide device is provided on the side mold base. A limiting device is provided on the hydraulic cylinder bracket. The positions of the guide device and the limiting device correspond. The hydraulic cylinder drives the side mold base to slide, so that the guide device and the limiting device contact to form a limiting and guiding structure, thereby realizing the flipping of the side mold.

[0005] Preferably, the guiding device is a guide ramp, and there are two guide ramps, which are respectively located on both sides of the piston rod. The limiting device is a limiting top rod, and there are two limiting top rods, which are fixed to the rear side of the cylinder bracket and parallel to the piston rod.

[0006] Preferably, a limiting rod is provided parallel to the upper part of the limiting top rod, and the limiting rod is fixedly connected to the cylinder bracket.

[0007] Preferably, the top end of the limiting rod is arc-shaped.

[0008] Preferably, the guiding device is a guide block, and the guide block is provided with an upwardly extending open guide groove. There are two guide blocks, which are respectively located on both sides of the side mold base. The limiting device is a limiting pin, and there are two limiting pins, which are respectively located on the left and right sides of the cylinder bracket. The limiting pins extend radially and cooperate with the open guide groove of the guide block to form a limiting and guiding structure.

[0009] Preferably, the opening of the guide groove is larger than the diameter of the limiting pin.

[0010] The advantages of this utility model are as follows: By setting a guiding device on the side mold base and a limiting device on the cylinder bracket, the side mold base is driven by the cylinder to move backward on the slide rail on the cylinder bracket. After the guiding device contacts the limiting device, a limiting and guiding structure is formed, thereby causing the side mold base to rise. This enables the coating on the lower side of the side mold and the cleaning of foreign objects accumulated between the lower side mold and the lower mold. The structure is simple and easy to use. It avoids disassembling the side mold or even the entire mold set from the machine, saving time, increasing the production cycle, ensuring the quality of castings, and facilitating the maintenance of the side mold. Attached Figure Description

[0011] Figure 1 This is a top view of the side mold and lower mold according to an embodiment of the present invention.

[0012] Figure 2 This is a schematic diagram of the side mold structure of one embodiment of the present invention;

[0013] Figure 3 This is a top view of the side mold and lower mold according to another embodiment of the present invention.

[0014] Figure 4 This is a top view of the side mold according to another embodiment of the present invention;

[0015] Figure 5 This is a rear view structural diagram of the side mold according to another embodiment of the present invention. Detailed Implementation

[0016] A flipping side mold for a low-pressure casting mold includes a side mold 2 and a side mold base 1. The side mold 2 is fixedly connected to the side mold base 1. The side mold 2 is used to cooperate with the lower mold 10 and the upper mold to form a cavity. A hydraulic cylinder bracket 3 is installed and fixed on the mold base 11. The side mold base 1 is slidably fitted on the slide rail of the hydraulic cylinder bracket 3. A hydraulic cylinder 4 is fixed on the outside of the hydraulic cylinder bracket 3. The piston rod 41 of the hydraulic cylinder 4 passes through the hydraulic cylinder bracket 3 and is hinged to the side mold base 1. A guide device is provided on the side mold base 1, and a limiting device is provided on the hydraulic cylinder bracket 3. The guide device and the limiting device are positioned correspondingly. The hydraulic cylinder 4 drives the side mold base 1 to slide, so that the guide device and the limiting device contact to form a limiting and guiding structure, thereby realizing the flipping of the side mold 2. Example 1

[0017] See Figures 1 to 2 The guiding device is a guide ramp 5, of which two guide ramps 5 are provided, located on both sides of the piston rod 41. The limiting device is a limiting rod 6, of which two limiting rods 6 are provided, fixed to the rear side of the cylinder bracket 3 and parallel to the piston rod 41. The top of the limiting rod 6 is arc-shaped to facilitate cooperation with the guide ramp 5 and ensure smooth guidance. A limiting rod 7 is provided parallel above the limiting rod 6, and the limiting rod 7 is fixedly connected to the cylinder bracket 3 to limit the flipping of the side mold 2 and prevent excessive flipping of the side mold 2.

[0018] The usage process of this utility model is as follows: When the side mold 2 needs to be flipped, the oil cylinder 4 pulls the side mold base 1 backward on the guide rail of the oil cylinder bracket 3 through the piston rod 41 until the guide inclined surface 5 fixed on the side mold base 1 contacts the limiting push rod 6 on the rear side of the oil cylinder bracket 3. The oil cylinder 4 continues to pull the side mold base 1 backward on the guide rail of the oil cylinder bracket 3 through the piston rod 41. Due to the limitation of the limiting push rod 6, the side mold base 1 flips as it moves with the guide inclined surface 5, thereby flipping the side mold 2 which is fixedly connected to the side mold base 1. Example 2

[0019] See Figures 3 to 5 The guiding device is a guide block 8, which has an upwardly extending open guide groove 81 to ensure that the side mold 2 can be flipped. Two guide blocks 8 are provided, located on opposite sides of the side mold base 1. The limiting device is a limiting pin 9, with two pins provided, located on the left and right sides of the cylinder bracket 3. The limiting pins 9 extend radially and cooperate with the open guide groove 81 of the guide block 8 to form a limiting and guiding structure. The opening of the open guide groove 81 is larger than the diameter of the limiting pin 9, ensuring that the limiting pin 9 can fall into the open guide groove 81 for limiting and guiding.

[0020] The usage process of this utility model is as follows: When the side mold 2 needs to be flipped, the oil cylinder 4 pulls the side mold base 1 backward on the guide rail of the oil cylinder bracket 3 through the piston rod 41 until the opening guide groove 81 of the guide block 8 fixedly set on the side mold base 1 contacts the left and right limit pins 9 of the oil cylinder bracket 3. The oil cylinder 4 continues to pull the side mold base 1 backward on the guide rail of the oil cylinder bracket 3 through the piston rod 41. Due to the restriction of the limit pins 9, the side mold base 1 flips as it moves with the opening guide groove 81, thereby flipping the side mold 2 which is fixedly connected to the side mold base 1.

[0021] 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 made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A flipping side mold for a low-pressure casting mold, comprising a side mold (2) and a side mold base (1), characterized in that: The side mold (2) is fixedly connected to the side mold base (1). The side mold (2) is used to cooperate with the lower mold (10) and the upper mold to form a cavity. A cylinder bracket (3) is installed and fixed on the mold base (11). The side mold base (1) is slidably fitted on the slide rail of the cylinder bracket (3). A cylinder (4) is fixed on the outside of the cylinder bracket (3). The piston rod (41) of the cylinder (4) passes through the cylinder bracket (3) and is hinged to the side mold base (1). A guide device is provided on the side mold base (1). A limiting device is provided on the cylinder bracket (3). The positions of the guide device and the limiting device correspond. The cylinder (4) drives the side mold base (1) to slide, so that the guide device and the limiting device contact to form a limiting guide structure, thereby realizing the flipping of the side mold (2).

2. The flipping side mold of a low-pressure casting mold according to claim 1, characterized in that: The guiding device is a guide slope (5), and there are two guide slopes (5). The two guide slopes (5) are located on both sides of the piston rod (41). The limiting device is a limiting top rod (6), and there are two limiting top rods (6). The two limiting top rods (6) are fixed on the rear side of the cylinder bracket (3) and are parallel to the piston rod (41).

3. The flipping side mold of a low-pressure casting mold according to claim 2, characterized in that: A limit rod (7) is provided parallel above the limit rod (6), and the limit rod (7) is fixedly connected to the cylinder bracket (3).

4. The flipping side mold of a low-pressure casting mold according to claim 2, characterized in that: The top end of the limiting rod (6) is arc-shaped.

5. The flipping side mold of a low-pressure casting mold according to claim 1, characterized in that: The guiding device is a guide block (8), and the guide block (8) is provided with an upwardly extending open guide groove (81). There are two guide blocks (8), and the two guide blocks (8) are located on both sides of the side mold base (1). The limiting device is a limiting pin (9), and there are two limiting pins (9). The two limiting pins (9) are located on the left and right sides of the cylinder bracket (3). The limiting pins (9) extend radially and cooperate with the open guide groove (81) of the guide block (8) to form a limiting and guiding structure.

6. The flipping side mold of a low-pressure casting mold according to claim 5, characterized in that: The opening of the open guide groove (81) is larger than the diameter of the limiting pin (9).

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