Fixed mold dark-drawing core-pulling mechanism of hanging machine base injection mold

Abstract

The utility model relates to a fixed mold dark-drawing core-pulling mechanism of an outboard motor base injection mold, which comprises an oil cylinder positioned in a fixed mold, a connecting rod and a dark-drawing slide block arranged on the connecting rod in a sliding manner, a first guide inclined surface is arranged on the connecting rod, a second guide inclined surface is correspondingly arranged on the dark-drawing slide block, and the second guide inclined surface is arranged on the dark-drawing slide block. The first guide inclined face makes contact with the second guide inclined face, the hidden drawing sliding block is further provided with a forming protruding block for forming an inverted buckle, and the oil cylinder is connected with the connecting rod and drives the connecting rod to move. And the movement of the connecting rod drives the hidden pulling slide block to pull the core through the matching of the first guide inclined surface and the second guide inclined surface, so that the forming convex block is gradually separated from the inverted buckle. According to the utility model, the connecting rod moves to drive the hidden pulling slide block to obliquely pull the core through the matching of the first guide inclined surface and the second guide inclined surface, the connecting rod is driven by the oil cylinder, the whole structure is simple, the core pulling transmission mode is stable and reliable, the occupied space is small, and the hidden pulling is conveniently realized in a mold.

Description

Technical Field

[0001] This utility model relates to a fixed mold concealed core-pulling mechanism for injection molds of hanging air conditioner bases, and belongs to the field of injection mold technology. Background Technology

[0002] In the air conditioner wall-mounted unit industry, the air conditioner base is one of the most important components. Current technology for producing air conditioner bases combines the base and the ejector plate into a single mold to reduce the number of units required and lower costs. However, this results in a relatively complex product structure. Due to space constraints, a conventional inclined ejector plate and ejector pin structure cannot be designed for molding. Therefore, there is an urgent need to design a small, concealed core-pulling structure within the mold. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a fixed mold concealed core-pulling mechanism for the injection mold of a wall-mounted base that occupies a small space.

[0004] To achieve this objective, the technical solution adopted by this utility model is:

[0005] The fixed mold core-pulling mechanism of the wall-mounted base injection mold includes a hydraulic cylinder, a connecting rod, and a core-pulling slider slidably disposed on the connecting rod within the fixed mold. The connecting rod has a first guide slope, and the core-pulling slider has a corresponding second guide slope. The first guide slope and the second guide slope are in contact with each other. The core-pulling slider also has a forming protrusion for forming an undercut. The hydraulic cylinder is connected to the connecting rod and drives the connecting rod to move. The movement of the connecting rod, through the cooperation of the first guide slope and the second guide slope, drives the core-pulling slider to pull the core, causing the forming protrusion to gradually disengage from the undercut.

[0006] As a further optimization of the above technical solution: the fixed mold has a moving cavity for the sliding block to move when pulling the core, and the moving cavity is also connected to a locking groove. When the mold is closed, the end of the connecting rod passes through the moving cavity and is located in the locking groove, and the side of the end of the connecting rod is in close contact with the groove wall of the locking groove.

[0007] As a further optimization of the above technical solution: both sides of the locking groove are inclined, and the end of the connecting rod is also provided with a third guide slope, which is in close contact with one of the groove walls of the locking groove.

[0008] As a further optimization of the above technical solution: both sides of the end of the connecting rod are provided with inclined guide protrusions, the inclination angle of the guide protrusions is the same as the inclination angle of the first guide slope, and the concealed sliding block is provided with a corresponding T-shaped guide groove. The guide protrusions slide within the guide groove, so that an I-shaped guide is formed between the connecting rod and the concealed sliding block, and the second guide slope is the bottom of the guide groove.

[0009] As a further optimization of the above technical solution, it also includes a transmission block, which is threadedly connected to the piston rod of the hydraulic cylinder. The transmission block and the connecting rod are connected by an I-beam joint, and the hydraulic cylinder drives the connecting rod to move through the transmission block.

[0010] As a further optimization of the above technical solution: the side of the transmission block is provided with an anti-rotation block and an anti-rotation screw, the end of the anti-rotation screw passes through the anti-rotation block and is fixed on the transmission block, so that the anti-rotation block is in close contact with the side of the transmission block and the side of the piston rod.

[0011] As a further optimization of the above technical solution: a guide sleeve is also fitted on the connecting rod, and the guide sleeve is fixed inside the mold.

[0012] Compared with the prior art, in this utility model, the movement of the connecting rod is driven by the cooperation of the first and second guide inclined surfaces to drive the concealed core-pulling slider to pull the core at an angle. The connecting rod is driven by a hydraulic cylinder. The overall structure is simple, the core-pulling transmission method is stable and reliable, and it occupies little space, making it easy to place in the mold for concealed core pulling. A locking groove is provided, and the side of the end of the connecting rod is tightly attached to the groove wall to lock the movement of the connecting rod and the concealed core-pulling slider, preventing the connecting rod and the concealed core-pulling slider from retracting due to the pressure during injection molding. This ensures the stability of the injection molding process and thus guarantees the product's injection molding qualification rate. To ensure mass production requirements, the guide lug slides within the guide groove, forming an I-beam guide between the connecting rod and the concealed core-pulling slider. This ensures the correct direction of the concealed core-pulling slider relative to the connecting rod during core pulling, guaranteeing core pulling stability. The cylinder and connecting rod are connected by a transmission block to prevent the connecting rod from bending or breaking due to its excessive length. The I-beam connection between the transmission block and connecting rod facilitates installation and disassembly. The anti-rotation block is in close contact with the side of the transmission block and the side of the piston rod to prevent relative rotation between the transmission block and the piston rod, thus preventing interference with the connection between them. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is an exploded structural diagram of the present invention.

[0015] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the present invention located within the fixed mold. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. For example... Figure 1-3 As shown, the fixed mold of the wall-mounted car base injection mold has a concealed core-pulling mechanism, including a hydraulic cylinder 1, a connecting rod 2, and a concealed sliding block 3 slidably mounted on the connecting rod 2, all located within the fixed mold 4. The connecting rod 2 has a first guide slope 22, and the concealed sliding block 3 has a corresponding second guide slope 32. The first and second guide slopes 22 contact each other, guiding the movement between the connecting rod 2 and the concealed sliding block 3. The concealed sliding block 3 also has a forming protrusion 33 for undercutting. The hydraulic cylinder 1 is connected to the connecting rod 2 and drives the connecting rod 2 to move. The movement of the connecting rod 2, through the cooperation of the first and second guide slopes 22 and 32, drives the concealed sliding block 3 to pull the core obliquely, causing the forming protrusion 33 to gradually detach from the undercut.

[0017] In the above technical solutions: such as Figure 3 As shown, the fixed mold 4 has a moving cavity 41 for the movement of the concealed core-pulling slider 3 during core pulling. A locking groove 42 is also connected to the moving cavity 41. When the mold is closed, the end of the connecting rod 2 passes through the moving cavity 41 and is located in the locking groove 42, and the side of the end of the connecting rod 2 is in close contact with the groove wall of the locking groove 42, thereby locking the movement of the connecting rod 2 and the concealed core-pulling slider 3, preventing the connecting rod 2 and the concealed core-pulling slider 3 from retracting due to the pressure during injection molding, and ensuring the stability of the injection molding process.

[0018] In the above technical solution: both sides of the locking groove 42 are inclined to facilitate the insertion of the end of the connecting rod 2 into the locking groove 42. The end of the connecting rod 2 is also provided with a third guide slope 23, which is in close contact with one wall of the locking groove 42.

[0019] In the above technical solution: Both sides of the end of the connecting rod 2 are provided with inclined guide protrusions 21, the inclination angle of which is the same as the inclination angle of the first guide slope 22. The concealed sliding block 3 is correspondingly provided with a T-shaped guide groove 31, and the guide protrusions 21 slide within the guide groove 31, forming an I-shaped guide between the connecting rod 2 and the concealed sliding block 3. The second guide slope 32 is the bottom of the guide groove 31.

[0020] The above technical solution also includes a transmission block 5, which is threadedly connected to the piston rod 11 of the oil cylinder 1. The transmission block 5 and the connecting rod 2 are connected by an I-beam joint. The oil cylinder 1 drives the connecting rod 2 to move through the transmission block 5.

[0021] In the above technical solution: the side of the transmission block 5 is provided with an anti-rotation block 51 and an anti-rotation screw 52. The end of the anti-rotation screw 52 passes through the anti-rotation block 51 and is fixed on the transmission block 5, so that the anti-rotation block 51 is in close contact with the side of the transmission block 5 and the side of the piston rod 11, preventing the transmission block 5 and the piston rod 11 from rotating relative to each other and affecting the connection between the transmission block 5 and the piston rod 11.

[0022] In the above technical solution: a guide sleeve 6 is also fitted on the connecting rod 2. The guide sleeve 6 is fixed inside the mold and guides the movement of the connecting rod 2.

[0023] In this invention, the movement of the connecting rod 2 is driven by the cooperation of the first guide inclined surface 22 and the second guide inclined surface 32 to drive the concealed core-pulling slider 3 to pull the core at an angle. The connecting rod 2 is driven by the hydraulic cylinder 1. The overall structure is simple, the core-pulling transmission method is stable and reliable, and it occupies little space, making it easy to place in the mold for concealed core-pulling. A locking groove 42 is provided, and the side of the end of the connecting rod 2 is in close contact with the groove wall of the locking groove 42 to lock the movement of the connecting rod 2 and the concealed core-pulling slider 3, preventing the connecting rod 2 and the concealed core-pulling slider 3 from retracting due to the pressure during injection molding, ensuring the stability of the injection molding process, thereby ensuring the injection molding qualification rate of the product and meeting the mass production requirements. The guide protrusion 21 slides within the guide groove 31, forming an I-shaped guide between the connecting rod 2 and the concealed core-pulling slider 3. This ensures the correct direction of the concealed core-pulling slider 3 relative to the connecting rod 2 during core-pulling, guaranteeing the stability of the core-pulling process. The cylinder 1 and the connecting rod 2 are connected by a transmission block 5 to prevent the connecting rod 2 from bending or breaking due to its excessive length. The transmission block 5 and the connecting rod 2 are connected by an I-shape, facilitating their installation and disassembly. The anti-rotation block 51 is in close contact with the side of the transmission block 5 and the side of the piston rod 11, preventing relative rotation between the transmission block 5 and the piston rod 11 and affecting the connection between them.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should fall within the protection scope of this utility model.

Claims

1. A mechanism for the core-pulling of the fixed half of an injection mold for the base of a telephone set, characterized in that The application relates to a mould core pulling mechanism, which comprises an oil cylinder (1) located in a fixed mould (4), a connecting rod (2) and a dark-pulling sliding block (3) slidably arranged on the connecting rod (2), a first guide inclined surface (22) is arranged on the connecting rod (2), a second guide inclined surface (32) is correspondingly arranged on the dark-pulling sliding block (3), the first guide inclined surface (22) and the second guide inclined surface (32) are in contact, a forming protrusion (33) for forming an undercut is further arranged on the dark-pulling sliding block (3), the oil cylinder (1) is connected with the connecting rod (2) and drives the connecting rod (2) to move, the movement of the connecting rod (2) drives the dark-pulling sliding block (3) to core-pull through cooperation of the first guide inclined surface (22) and the second guide inclined surface (32), and the forming protrusion (33) gradually separates from the undercut.

2. The mechanism for the draw of the core of the lower part of the off- hook base injection mold according to claim 1, characterized in that A moving cavity (41) for moving of the dark-pulling sliding block (3) during core-pulling is arranged in the fixed mould (4), and a locking groove (42) is further connected to the moving cavity (41), when the mould is closed, the end of the connecting rod (2) passes through the moving cavity (41) and is located in the locking groove (42), and the side surface of the end of the connecting rod (2) is tightly attached to the groove wall of the locking groove (42).

3. The mechanism for the draw of the core of the lower part of the off- hook base injection mold according to claim 2, characterized in that The groove walls on both sides of the locking groove (42) are obliquely arranged, a third guide inclined surface (23) is further arranged on the end of the connecting rod (2), and the third guide inclined surface (23) is tightly attached to one groove wall of the locking groove (42).

4. The ejector mechanism of claim 1, wherein The side surfaces of the end of the connecting rod (2) are both provided with guide sliding protrusions (21) arranged obliquely, the oblique angle of the guide sliding protrusions (21) is the same as that of the first guide inclined surface (22), a guide sliding inclined groove (31) with a T-shaped cross section is correspondingly arranged on the dark-pulling sliding block (3), the guide sliding protrusions (21) are slidably arranged in the guide sliding inclined groove (31), a I-shaped guide sliding is formed between the connecting rod (2) and the dark-pulling sliding block (3), and the second guide inclined surface (32) is the groove bottom of the guide sliding inclined groove (31).

5. The ejector mechanism of the on-hang base injection mold according to claim 1, wherein The application further comprises a transmission block (5), the transmission block (5) is threadedly connected with a piston rod (11) of the oil cylinder (1), the transmission block (5) and the connecting rod (2) are I-shaped connected, and the oil cylinder (1) drives the connecting rod (2) to move through the transmission block (5).

6. The parting core-draw mechanism of a hang-up base injection mold of claim 5, wherein The side surface of the transmission block (5) is provided with a rotation-stopping block (51) and a rotation-stopping screw (52), the end of the rotation-stopping screw (52) passes through the rotation-stopping block (51) and is fixed on the transmission block (5), and the rotation-stopping block (51) is tightly attached to the side surface of the transmission block (5) and the side surface of the piston rod (11).

7. The ejector mechanism for a hanging base injection mold according to claim 1, wherein A guide sleeve (6) is further arranged on the connecting rod (2), and the guide sleeve (6) is fixed in the mould.

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