Low-pressure casting forming die for automobile plastic battery tray

Abstract

The utility model discloses an automobile plastic battery tray low die-casting forming die, which comprises a lower die assembly and an upper die assembly, the lower die assembly comprises a bottom plate, a bottom die, a limiting structure and a guide structure, and the top end of a top plate is provided with an injection molding port. The bottom end of the top plate is provided with the mounting column, the mounting column can enter the air guide hole through the shape of the mounting column, when the bottom die and the top die are spliced, the mounting column can apply pressure to the interior of the air guide hole, so that the piston mounted in the air guide hole is pushed, and the piston can drive the mounting block to move after being pushed; the limiting block is separated from the interior of the air guide hole after being reset by the mounting spring, so that the limiting block is clamped into a groove in one end of the spliced top mold, the top mold can be limited, and the limiting can be relieved by pressing when the limiting block needs to be relieved, and a piston is lifted by a top plate to generate air exhaust; therefore, the purpose of conveniently limiting and fixing the bottom mold and the top mold during injection molding is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a low-pressure casting mold for an automobile plastic battery tray. Background Art

[0002] The die-casting mold of the automotive plastic battery tray is a method of casting liquid die forging, and die casting is a process completed on the automotive plastic battery tray die-casting die forging machine. During die casting, the molten metal is first filled into the cavity of the automotive plastic product die-casting mold on the automotive plastic product die-casting die forging machine. With the cooling process of the molten metal, pressure forging is applied to improve the mechanical properties of the metal blank and obtain a die-casting product.

[0003] To this end, the patent specification with the publication number CN203944814U discloses a die-casting mold for automobile plastic products, including a left mold and a right mold, which are connected to each other to form a mold with an L-shaped inner cavity, the L-shaped inner cavity includes a horizontal cavity and a vertical cavity, the bottom of the left mold has a horizontal cavity, a push block is arranged in the horizontal cavity, the push block is provided with a gear rod, the gear rod extends out of the horizontal cavity and is connected to a driving motor arranged on the outer wall of the left mold, and the driving motor drives the push block to move in the horizontal cavity through the gear rod. The horizontal cavity is a part of the L-shaped inner cavity, and the position of the push block is adjusted by the driving motor, thereby continuously adjusting the size of the L-shaped inner cavity, so that different die-casting products can be cast according to different L-shaped inner cavities.

[0004] The above-mentioned prior art mentions that the position of the pushing block is adjusted by a dynamic motor, so as to continuously adjust the size of the L-shaped inner cavity, so as to cast different die-casting products according to different L-shaped inner cavities. However, when the device is put into use, it is unable to limit and fix the bottom mold and the top mold, and is unable to guide it during die-casting. Utility Model Content

[0005] The utility model aims to provide a low-pressure casting mold for an automobile plastic battery tray, so as to solve the defect that it is inconvenient to limit and fix the bottom mold and top mold during injection molding.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a low-pressure casting mold for an automobile plastic battery tray, comprising a lower mold assembly and an upper mold assembly, wherein the lower mold assembly comprises a bottom plate, a bottom mold, a limiting structure and a guide structure, the top end of the bottom plate is provided with a bottom mold, one end of the bottom plate is provided with a limiting structure, and the top end of the bottom plate is provided with a guide structure;

[0007] The guide structure comprises a guide rod, a return spring and a limit plate, wherein the guide rod is mounted on the top of the bottom plate, a return spring is arranged at one end of the guide rod, and a limit plate is arranged at the top of the guide rod;

[0008] The upper mold assembly comprises a top plate, a top mold and an injection port. The top plate is installed on the top end of the guide rod, the top mold is installed on the top end of the top plate, and the top end of the top plate is provided with an injection port.

[0009] When in use, first, a mounting column is installed at the bottom end of the top plate, and the mounting column can enter the interior of the air guide hole through its own shape. When the bottom mold and the top mold are assembled, the mounting column will apply pressure to the inside of the air guide hole, thereby pushing the piston installed inside the air guide hole. After being pushed, the piston can drive the position of the mounting block to move, so that the position of the limit block is separated from the interior of the air guide hole after being reset by the mounting spring, so that it is engaged with the groove at one end of the assembled top mold, which can limit it. When it needs to be released, press it and the piston can release the limit by suction due to the lifting of the top plate.

[0010] Preferably, the bottom mold is installed on the top of the bottom plate, and a groove is provided at one end inside the bottom mold, which can achieve a better injection molding effect.

[0011] Preferably, the limiting structure includes an air guide hole, a mounting column, a piston, a mounting block, a mounting spring and a limiting block. The air guide hole is arranged at one end of the bottom mold, the mounting column is installed at the bottom end of the top mold, a piston is installed at one end inside the air guide hole, a mounting block is installed on one side of the piston, a mounting spring is installed at the bottom end inside the mounting block, and a limiting block is installed on the top end of the mounting spring, which can limit the upper and lower molds.

[0012] Preferably, the mounting post is arranged at the bottom end of the top plate, and the mounting post is cylindrical in shape, so that it can produce an air entraining effect when entering the air guide hole.

[0013] Preferably, the piston is installed at one end inside the air guide hole, and the piston and the air guide hole form a sliding connection and can slide.

[0014] Preferably, the mounting spring is mounted at one end inside the mounting block, and the mounting spring is spiral in shape and can be reset.

[0015] Preferably, the guide rods are installed at the bottom end of the top plate, and the guide rods are symmetrically distributed about the central axis of the top plate, which can achieve a better guiding effect.

[0016] Preferably, the return spring is installed at one end of the guide rod, and four groups of the return springs are provided to make the return more stable.

[0017] Preferably, the limiting plate is installed on the top end of the guide rod, and the inner diameter of the limiting plate is larger than the outer diameter of the return spring, so that the limiting plate can be installed more firmly.

[0018] The utility model provides a low-pressure casting mold for a plastic battery tray for automobiles, which has the advantages that: by installing a mounting column at the bottom end of the top plate, the mounting column can enter the inside of the air guide hole through its own shape, and when the bottom mold and the top mold are assembled, the mounting column will pressurize the inside of the air guide hole, thereby pushing the piston installed inside the air guide hole, and the piston can drive the position of the mounting block to move after being pushed, so that the position of the limit block is separated from the inside of the air guide hole after the reset of the mounting spring, so that it is engaged in the groove at one end of the assembled top mold, and it can be limited. When it needs to be released, it is pressed and the piston can be released due to the suction generated by the lifting of the top plate, so as to achieve the purpose of facilitating the limit fixing of the bottom mold and the top mold during injection molding;

[0019] Four sets of guide rods are installed on the top of the bottom mold. The guide rods are located at the top of the bottom plate and penetrate the top plate. The top plate can slide on the guide rods, and the four sets of guide rods can guide the top mold and the bottom mold when they are in contact, thereby preventing the position from being offset and affecting the finished injection molded product. The top plate can be reset after injection molding through the set reset spring, and then limited by the limit plate, so as to achieve the purpose of guiding the device during injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional right-side structural schematic diagram of the utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the guide structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the limiting structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the lower mold assembly of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. lower mold assembly; 101. bottom plate; 102. bottom mold; 103. limiting structure; 1031. air guide hole; 1032. mounting column; 1033. piston; 1034. mounting block; 1035. mounting spring; 1036. limiting block; 104. guide structure; 1041. guide rod; 1042. return spring; 1043. limiting disk; 2. upper mold assembly; 201. top plate; 202. top mold; 203. injection port. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The utility model provides an embodiment: a low-pressure casting mold for an automotive plastic battery tray, comprising a lower mold assembly 1 and an upper mold assembly 2, the lower mold assembly 1 comprising a bottom plate 101, a bottom mold 102, a limiting structure 103 and a guide structure 104, the top of the bottom plate 101 is equipped with a bottom mold 102, the bottom mold 102 is installed at the top of the bottom plate 101, and a groove is arranged at one end inside the bottom mold 102.

[0028] Reference Figure 1-Figure 2 and Figure 4-Figure 5 As shown, a limiting structure 103 is provided at one end of the bottom plate 101, and the limiting structure 103 includes an air guide hole 1031, a mounting column 1032, a piston 1033, a mounting block 1034, a mounting spring 1035 and a limiting block 1036. The air guide hole 1031 is provided at one end of the bottom mold 102, the mounting column 1032 is installed at the bottom end of the top mold 202, the mounting column 1032 is provided at the bottom end of the top plate 201, and the shape of the mounting column 1032 is cylindrical.

[0029] A piston 1033 is installed at one end of the air guide hole 1031 . The piston 1033 is installed at one end of the air guide hole 1031 . The piston 1033 and the air guide hole 1031 form a sliding connection.

[0030] A mounting block 1034 is installed on one side of the piston 1033 , and a mounting spring 1035 is installed at the bottom end inside the mounting block 1034 . The mounting spring 1035 is installed at one end inside the mounting block 1034 , and the shape of the mounting spring 1035 is spiral.

[0031] A limit block 1036 is installed at the top of the mounting spring 1035 , and a guide structure 104 is installed at the top of the bottom plate 101 .

[0032] By installing 2031 at the bottom end of the top plate 201, the installation column 1032 can enter the interior of the air hole 1031 through its own shape. When the bottom mold 102 and the top mold 202 are assembled, the installation column 1032 will apply pressure to the interior of the air hole 1031, thereby pushing the piston 1033 installed in the air hole 1031. After being pushed, the piston 1033 can drive the position of the installation block 1034 to move, so that the position of the limit block 1036 is separated from the interior of the air hole 1031 after the installation spring 1035 is reset, so that it is engaged with the groove at one end of the assembled top mold 202, which can limit it. When it needs to be released, press 1026 and the piston 1033 can release the limit by suction due to the lifting of the top plate 201.

[0033] Reference Figure 1-Figure 3 As shown, the guide structure 104 includes a guide rod 1041, a return spring 1042 and a limit plate 1043. The guide rod 1041 is installed at the top of the base plate 101. A return spring 1042 is provided at one end of the guide rod 1041. The guide rod 1041 is installed at the bottom end of the top plate 201. The guide rod 1041 is symmetrically distributed about the central axis of the top plate 201.

[0034] The return spring 1042 is installed at one end of the guide rod 1041. Four groups of return springs 1042 are provided. A limit plate 1043 is installed at the top of the guide rod 1041. The limit plate 1043 is installed at the top of the guide rod 1041. The inner diameter of the limit plate 1043 is larger than the outer diameter of the return spring 1042.

[0035] Four groups of guide rods 1041 are installed on the top of the bottom mold 102. The guide rods 1041 are located at the top of the bottom plate 101 and penetrate the top plate 201. The top plate 201 can slide on the guide rods 1041, and the four groups of guide rods 1041 can guide the top mold 202 and the bottom mold 102 when they are in contact, thereby preventing the position from being offset and affecting the injection molded product. The reset spring 1042 is set to reset the top plate 201 after injection molding, and then limit it through the limit plate 1043.

[0036] The upper mold assembly 2 includes a top plate 201 , a top mold 202 and an injection port 203 . The top plate 201 is mounted on the top of the guide rod 1041 . The top mold 202 is mounted on the top of the top plate 201 . The top of the top plate 201 is provided with an injection port 203 .

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-pressure casting mold for an automobile plastic battery tray, comprising a lower mold assembly (1) and an upper mold assembly (2); Features: The lower mold assembly (1) comprises a bottom plate (101), a bottom mold (102), a limiting structure (103) and a guide structure (104); the bottom mold (102) is installed at the top of the bottom plate (101); the limiting structure (103) is provided at one end of the bottom plate (101); and the guide structure (104) is installed at the top of the bottom plate (101); The guide structure (104) comprises a guide rod (1041), a return spring (1042) and a limit plate (1043); the guide rod (1041) is mounted on the top of the bottom plate (101); one end of the guide rod (1041) is provided with a return spring (1042); and the top of the guide rod (1041) is provided with a limit plate (1043); The upper mold assembly (2) comprises a top plate (201), a top mold (202) and an injection port (203); the top plate (201) is mounted on the top end of a guide rod (1041); the top mold (202) is mounted on the top end of the top plate (201); and the top end of the top plate (201) is provided with an injection port (203).

2. The low-pressure casting mold for a plastic battery tray for automobile according to claim 1, characterized in that: The bottom mold (102) is installed on the top of the bottom plate (101), and a groove is provided at one end inside the bottom mold (102).

3. The low-pressure casting mold for a plastic battery tray for automobile according to claim 1, characterized in that: The limiting structure (103) comprises an air guide hole (1031), a mounting column (1032), a piston (1033), a mounting block (1034), a mounting spring (1035) and a limiting block (1036); the air guide hole (1031) is arranged at one end of the bottom mold (102); the mounting column (1032) is mounted at the bottom end of the top mold (202); a piston (1033) is mounted at one end inside the air guide hole (1031); a mounting block (1034) is mounted on one side of the piston (1033); a mounting spring (1035) is mounted at the bottom end inside the mounting block (1034); and a limiting block (1036) is mounted at the top end of the mounting spring (1035).

4. The low-pressure casting mold for an automotive plastic battery tray according to claim 3, characterized in that: The mounting column (1032) is arranged at the bottom end of the top plate (201), and the mounting column (1032) is cylindrical in shape.

5. The low-pressure casting mold for an automotive plastic battery tray according to claim 3, characterized in that: The piston (1033) is installed at one end inside the air guide hole (1031), and the piston (1033) and the air guide hole (1031) form a sliding connection.

6. The low-pressure casting mold for an automotive plastic battery tray according to claim 3, characterized in that: The mounting spring (1035) is mounted at one end inside the mounting block (1034), and the mounting spring (1035) is in a spiral shape.

7. The low-pressure casting mold for a plastic battery tray for automobile according to claim 1, characterized in that: The guide rods (1041) are installed at the bottom end of the top plate (201), and the guide rods (1041) are symmetrically distributed about the central axis of the top plate (201).

8. The low-pressure casting mold for a plastic battery tray for automobile according to claim 1, characterized in that: The return spring (1042) is installed at one end of the guide rod (1041), and four groups of the return spring (1042) are provided.

9. The low-pressure casting mold for a plastic battery tray for automobile according to claim 1, characterized in that: The limiting plate (1043) is installed on the top end of the guide rod (1041), and the inner diameter of the limiting plate (1043) is larger than the outer diameter of the return spring (1042).

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