Base shell forming die

Abstract

The utility model provides a base shell forming die which comprises a panel, a runner plate, an upper movable die, a lower fixed die, an ejector plate and a bottom plate from top to bottom, an upper die core is embedded in the bottom of the upper movable die, a lower die core is embedded in the lower fixed die, a forming groove is formed in the bottom of the upper die core, forming protruding blocks are arranged on the two sides in the forming groove, and the middle of the lower die core protrudes to form a boss. Inclined guide grooves are formed in the two ends of the lower mold core, side grooves are formed in the two sides of the lower mold core, oil cylinders and inclined drawing rods are arranged at the two ends of the lower mold core of the lower fixed mold, and the oil cylinders are connected with the inclined drawing rods. During mold closing, the forming groove covers the boss and is used for forming the main body part of the base shell, the oil cylinder drives the inclined drawing rod to extend into the inclined guide groove and is used for forming inclined holes in the two ends of the base shell, and during mold opening, the oil cylinder is controlled to drive the inclined drawing rod to retreat from the inclined holes, and then the upper mold core and the lower mold core are opened. The inclined drawing rod can be ensured to smoothly stretch in and out by adopting the mode that the oil cylinder drives the inclined drawing rod to move, so that the forming and smooth demolding of the base shell are ensured.

Description

Technical Field

[0001] This utility model relates to the field of molds, and more specifically, to a base shell forming mold. Background Technology

[0002] A mold is a tool used to create shaped products. Different shapes of molds are used to create products of different shapes, such as... Figure 1 The base housing shown has oblique holes at both ends for inserting fixing rods. Several ribs are provided at the bottom of the oblique holes. Handle holes are opened on both sides along the length of the base housing. Due to the depth of the oblique holes and the ribs at the bottom, there will be a large clamping force when the mold is opened. The forming rod cannot be pulled out from the oblique holes by the upper moving mold alone, which makes it difficult to demold the product. Therefore, how to achieve the forming of the base housing and smooth demolding is a technical problem that needs to be solved urgently. Utility Model Content

[0003] This utility model provides a base shell forming mold, which aims to solve the technical problems mentioned in the above technical background.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a base shell forming mold, comprising, from top to bottom, a panel, a flow channel plate, an upper moving mold, a lower fixed mold, an ejector plate, and a base plate. An upper mold core is embedded at the bottom of the upper moving mold, and a lower mold core is embedded in the lower fixed mold. A forming groove is formed at the bottom of the upper mold core, and forming protrusions are provided on both sides of the forming groove. A boss is formed in the middle of the lower mold core. Inclined guide grooves are formed at both ends of the lower mold core, and side grooves are formed on both sides of the lower mold core. A hydraulic cylinder and an inclined pull rod are provided at both ends of the lower mold core in the lower fixed mold, and the hydraulic cylinder is connected to the inclined pull rod.

[0005] Furthermore, the end of the inclined pull rod has several shaped gaps.

[0006] Furthermore, the lower mold core is provided with a first push block in the side groove, and a first push rod is provided at the bottom of the first push block. The first push rod passes downward through the lower mold core, and the lower fixed mold is mounted on the ejector plate.

[0007] Furthermore, the lower mold core is provided with several second push blocks around the boss, and a second push rod is provided at the bottom of the second push block. The second push rod passes downward through the lower mold core, and the lower fixed mold is installed on the ejector plate.

[0008] Furthermore, the bottom of the upper moving mold is provided with limiting blocks at both ends of the forming groove.

[0009] Furthermore, the lower mold core comprises three parts, namely, a first lower mold core on each side and a second lower mold core in the middle.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model includes, from top to bottom, a panel, a runner plate, an upper moving mold, a lower fixed mold, an ejector plate, and a base plate. An upper mold core is embedded at the bottom of the upper moving mold, and a lower mold core is embedded in the lower fixed mold. A forming groove is formed at the bottom of the upper mold core, with forming protrusions on both sides of the forming groove. A boss protrudes in the middle of the lower mold core, with inclined guide grooves at both ends and side grooves on both sides. A hydraulic cylinder and a slanted pull rod are provided at both ends of the lower mold core in the lower fixed mold, with the hydraulic cylinders connected to the slanted pull rods. When the mold is closed, the forming groove covers the boss and forms the main body of the base housing. The hydraulic cylinder drives the slanted pull rod to extend into the inclined guide groove to form the inclined holes at both ends of the base housing. When the mold is opened, the hydraulic cylinder drives the slanted pull rod to exit from the inclined holes, and then the upper and lower mold cores are opened. Using a hydraulic cylinder to move the slanted pull rod ensures smooth extension and retraction of the slanted pull rod, thus guaranteeing the forming and demolding of the mold. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the base shell structure;

[0014] Figure 2 This is a schematic diagram of the molding die structure for the base shell of this utility model;

[0015] Figure 3 This is a schematic diagram of the lower fixed mold structure of the molding die for the base shell of this utility model;

[0016] Figure 4 This is a schematic diagram of the lower fixed mold of the molding die for the base shell of this utility model from another angle.

[0017] Figure 5 This is a schematic diagram of the upper moving mold structure of the molding die for the base shell of this utility model;

[0018] Figure 6 This is a schematic diagram of the hydraulic cylinder and inclined rod structure of the molding die for the base shell of this utility model;

[0019] Figure 7 This is a schematic diagram of the ejector plate, the first push block, and the second push block of the molding die for the base shell of this utility model.

[0020] Explanation of main component symbols

[0021] 10. Panel;

[0022] 20. Flow channel plate;

[0023] 30. Upper moving mold; 301. Upper mold core; 3011. Forming groove; 3012. Forming protrusion; 302. Limiting block;

[0024] 40. Lower fixed mold; 401. Lower mold core; 4011. Boss; 4012. Angled guide groove; 4013. Side groove; 402. Hydraulic cylinder; 4021. Angled pull rod;

[0025] 50. Ejector plate; 501. First push rod; 5011. First push block; 502. Second push rod; 5021. Second push block;

[0026] 60. Base plate;

[0027] 70. Base housing; 701. Angled hole; 702. Handle hole. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] Example

[0032] Reference Figure 2-6 As shown, this utility model discloses a base shell forming mold, including a panel 10, a flow channel plate 20, an upper moving mold 30, a lower fixed mold 40, an ejector plate 50, and a base plate 60 from top to bottom. An upper mold core 301 is embedded at the bottom of the upper moving mold 30, and a lower mold core 401 is embedded in the lower fixed mold 40. A forming groove 3011 is opened at the bottom of the upper mold core 301, and forming protrusions 3012 are provided on both sides of the forming groove 3011. A boss 4011 is protruding in the middle of the lower mold core 401, and inclined guide grooves 4012 are opened at both ends of the lower mold core 401. Side grooves 4013 are opened on both sides of the lower mold core 401. When the mold is closed, the forming groove 3011 of the upper mold core 301 covers the boss 4011 of the lower mold core 401 for forming the main body of the base shell 70. The forming protrusions 3012 are placed in the side grooves 4013 for forming the handle holes 702 on both sides of the base shell 70.

[0033] Reference Figure 2-6 As shown, the lower mold 40 has hydraulic cylinders 402 and inclined pull rods 4021 at both ends of the lower mold core 401, with the hydraulic cylinders 402 connected to the inclined pull rods 4021. Specifically, during mold closing, the hydraulic cylinders 402 drive the inclined pull rods 4021 to extend into the inclined guide groove 4012 to form the inclined hole 701 of the base housing 70. The end of the inclined pull rods 4021 has several forming gaps for forming the ribs at the bottom of the inclined hole 701. During mold opening, the hydraulic cylinders 402 drive the inclined pull rods 4021 to be pulled out of the inclined hole 701. The movement of the inclined pull rods 4021 driven by the hydraulic cylinders 402 ensures smooth demolding of the inclined hole 701. Furthermore, the bottom of the upper moving mold 30 is provided with limiting blocks 302 at both ends of the forming groove 3011. Specifically, when the mold is closed, the limiting blocks 302 press against the inclined pull rod 4021 to prevent the inclined pull rod 4021 from being pushed out by the internal pressure when injecting glue into the cavity, which would cause the inclined hole 701 to be insufficient in depth.

[0034] Reference Figure 7As shown, the lower mold core 401 is provided with a first push block 5011 in the side groove 4013. The bottom of the first push block 5011 is provided with a first push rod 501. The first push rod 501 passes downward through the lower mold core 401 and the lower fixed mold 40 is installed on the ejector plate 50. Specifically, when the mold is opened, the ejector plate 50 pushes the first push rod 501 upward to push the first push block 5011. The first push block 5011 pushes the handle hole 702 of the base housing 70 upward to avoid the handle hole 702 being stuck in the side groove 4013, which would affect the demolding of the product. Furthermore, several second push blocks 5021 are arranged around the boss 4011 in the lower mold core 401. The bottom of the second push block 5021 is provided with a second push rod 502. The second push rod 502 passes downward through the lower mold core 401 and the lower fixed mold 40 and is installed on the ejector plate 50. When the mold is opened, the ejector plate 50 pushes the second push rod 502 to push the second push block 5021 upward. The second push block 5021 pushes the edges of the base housing 70 upward to push the product away from the boss 4011.

[0035] In addition, in this embodiment, the lower mold core 401 includes three parts, namely the first lower mold core 401 on both sides and the second lower mold core 401 in the middle. The assembled lower mold core 401 is convenient for processing.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A base housing forming die, characterized by: The application relates to a mould for injection moulding, which comprises a top-down panel, a flow channel plate, an upper movable mould, a lower fixed mould, a ejector plate and a bottom plate, the bottom of the upper movable mould is embedded with an upper mould core, the lower fixed mould is embedded with a lower mould core, a forming groove is formed in the bottom of the upper mould core, forming protrusions are arranged on the two sides of the forming groove, a boss is formed in the middle of the lower mould core, inclined guide grooves are formed at the two ends of the lower mould core, side grooves are formed on the two sides of the lower mould core, oil cylinders and inclined pull rods are arranged at the two ends of the lower mould core of the lower fixed mould, and the oil cylinders are connected with the inclined pull rods.

2. The base housing forming die of claim 1, wherein: The end of the inclined pull rod is provided with a plurality of forming gaps.

3. The base housing forming die of claim 1, wherein: The first push block is arranged in the side groove of the lower mould core, the bottom of the first push block is provided with a first push rod, the first push rod penetrates through the lower mould core and the lower fixed mould downwards and is installed on the ejector plate.

4. The base housing forming die of claim 1, wherein: A plurality of second push blocks are arranged around the boss of the lower mould core, the bottom of the second push block is provided with a second push rod, the second push rod penetrates through the lower mould core and the lower fixed mould downwards and is installed on the ejector plate.

5. The base housing forming die of claim 1, wherein: Limiting blocks are arranged at the two ends of the forming groove in the bottom of the upper movable mould.

6. The base housing forming die of claim 1, wherein: The lower mould core comprises three blocks, namely a first lower mould core on the two sides and a second lower mould core in the middle.

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