Mold core-pulling structure of front wall back-off positioning pin of motorcycle or electric vehicle

Abstract

The utility model provides a mould core-pulling structure of a motorcycle or electric vehicle front wall back-off positioning pin, which comprises a first fixed mould, a fixed mould insert, a movable mould slide block and a second fixed mould, a mould cavity is arranged between the first fixed mould and the second fixed mould, a plastic part is arranged in the mould cavity in an injection molding manner, and the plastic part is arranged in the mould cavity. A fixed mold insert is fixedly arranged on one side of the bottom end of the first fixed mold, a movable mold sliding block is connected to the side edge of the fixed mold insert in a sliding mode, a core pulling rod is connected to one side of the top end of the movable mold sliding block in a sliding mode, and the core pulling rod penetrates through the second fixed mold to extend into the mold cavity. According to the utility model, the fixed mold insert and the movable mold slide block slide relatively and obliquely, and the movable mold slide block slides to drive the core-pulling rod to slide back and forth on the surface of the first slide rail, so that the core-pulling rod can be quickly separated from a plastic part during demolding, the demolding of the plastic part subjected to injection molding is facilitated, and the demolding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a mold core-pulling structure for an undercut positioning pin on the front wall of a motorcycle or an electric vehicle. Background Art

[0002] At present, in the field of plastic parts processing, plastic parts are mainly processed by injection molding. Traditional injection molds are mainly demoulded by ejector. Plastic parts demoulded by ejector need to have a flat surface. In the process of processing special-shaped plastic parts or plastic parts with protrusions on the surface, the ejector method is used for demoulding, which can easily cause deformation of the plastic of the special-shaped parts and affect the product quality of the injection molded parts. For this reason, we have designed a mold core pulling structure with inverted locating pins on the front of a motorcycle or electric vehicle to effectively solve the above technical problems. Summary of the invention

[0003] The utility model aims to provide a mold core-pulling structure for an undercut positioning pin of a front wall of a motorcycle or electric vehicle, so as to solve the problems raised in the above-mentioned background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a mold core-pulling structure for an inverted locating pin on the front of a motorcycle or electric vehicle, comprising a first fixed mold, a fixed mold insert, a movable mold slider and a second fixed mold, a mold cavity is arranged between the first fixed mold and the second fixed mold, a plastic part is injection-molded inside the mold cavity, a fixed mold insert is fixedly arranged on one side of the bottom end of the first fixed mold, a movable mold slider is slidably connected to the side edge of the fixed mold insert, a core-pulling rod is slidably connected to one side of the top end of the movable mold slider, and the core-pulling rod passes through the second fixed mold and extends to the inside of the mold cavity.

[0005] In the above-mentioned mold core-pulling structure for the inverted locating pin of the front panel of a motorcycle or electric vehicle, an assembly block is fixedly provided on the top of the fixed mold insert, an assembly groove is opened on one side of the bottom end of the first fixed mold, and the assembly block extends to the inside of the assembly groove for fixed connection.

[0006] In the above-mentioned mold core pulling structure with inverted locating pins on the front panel of a motorcycle or electric vehicle, a second slide rail is fixedly provided on the side of the fixed mold insert, a second slide groove is opened on the side of the movable mold slider, and the second slide rail is slidably connected to the second slide groove.

[0007] In the above-mentioned mold core pulling structure with an inverted locating pin on the front panel of a motorcycle or electric vehicle, a first slide rail is fixedly provided on one side of the top of the movable mold slider, a first slide groove is opened at the bottom end of the core pulling rod, and the first slide rail is slidably connected to the first slide groove.

[0008] In the above-mentioned mold core-pulling structure for the undercut locating pin of the front panel of a motorcycle or electric vehicle, an oblique hole matching the core-pulling rod is opened in the middle of the second fixed mold, and the core-pulling rod is interlaced and connected with the oblique hole.

[0009] In the above-mentioned core-pulling structure of the mold for the inverted positioning pin of the front wall of a motorcycle or electric vehicle, a round hole is formed at the top of the core-pulling rod, and the round hole has the same size as the convex column at the bottom of the plastic part.

[0010] Compared with the prior art, the utility model has the advantages of a mold core pulling structure with an inverted locating pin on the front panel of a motorcycle or electric vehicle: the fixed mold insert and the movable mold slider slide relative to each other, and the sliding of the movable mold slider drives the core pulling rod to slide back and forth on the surface of the first slide rail. During demolding, the core pulling rod can be quickly separated from the plastic part, which facilitates the demolding of the injection molded plastic part and improves the demolding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a three-dimensional structural schematic diagram of a mold core-pulling structure of an undercut positioning pin of a front wall of a motorcycle or an electric vehicle.

[0012] Figure 2 The utility model is a front structural schematic diagram of a mold core-pulling structure of an undercut positioning pin of a front wall of a motorcycle or an electric vehicle.

[0013] Figure 3 The utility model is a front unfolded structural schematic diagram of a mold core pulling structure of an undercut positioning pin of a front wall of a motorcycle or an electric vehicle.

[0014] Figure 4 The utility model is one of the three-dimensional unfolding structural schematic diagrams of a mold core pulling structure of an undercut positioning pin of a front wall of a motorcycle or an electric vehicle.

[0015] Figure 5 This is the second three-dimensional unfolding structural schematic diagram of a mold core pulling structure of an inverted locating pin on the front wall of a motorcycle or electric vehicle according to the utility model.

[0016] In the figure, 1, the first fixed mold; 2, the fixed mold insert; 3, the movable mold slider; 4, the second fixed mold; 5, the plastic part; 6, the first slide rail; 7, the core pulling rod; 8, the second slide rail; 9, the second slide groove; 10, the first slide groove; 11, the inclined hole. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] like Figure 1-5As shown, the utility model is a mold core-pulling structure for an inverted locating pin on the front panel of a motorcycle or electric vehicle, comprising a first fixed mold 1, a fixed mold insert 2, a movable mold slider 3 and a second fixed mold 4. A mold cavity is arranged between the first fixed mold 1 and the second fixed mold 4, and a plastic part 5 is injection-molded inside the mold cavity. A fixed mold insert 2 is fixedly arranged on one side of the bottom end of the first fixed mold 1, and a movable mold slider 3 is slidably connected to the side of the fixed mold insert 2. A core-pulling rod 7 is slidably connected to one side of the top end of the movable mold slider 3, and the core-pulling rod 7 passes through the second fixed mold 4 and extends to the inside of the mold cavity.

[0019] Specifically, the fixed mold insert 2 and the movable mold slider 3 slide relative to each other in an inclined manner, and the sliding of the movable mold slider 3 drives the core pulling rod 7 to slide back and forth on the surface of the first slide rail 6. When demolding, the core pulling rod 7 can be quickly separated from the plastic part 5, which facilitates the demolding of the injection-molded plastic part 5 and improves the demolding efficiency.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the utility model is a mold core-pulling structure for an inverted locating pin on the front panel of a motorcycle or electric vehicle, an assembly block is fixedly provided on the top of the fixed mold insert 2, an assembly groove is opened on one side of the bottom end of the first fixed mold 1, and the assembly block extends to the inside of the assembly groove for fixed connection.

[0021] A second slide rail 8 is fixedly provided on the side of the fixed mold insert 2, and a second slide groove 9 is opened on the side of the movable mold slider 3. The second slide rail 8 is slidably connected with the second slide groove 9.

[0022] Specifically, the movement of the movable mold slider 3 is achieved through the cooperation of the second slide rail 8 and the second slide groove 9 .

[0023] A first slide rail 6 is fixedly provided on one side of the top of the movable mold slider 3 , a first slide groove 10 is provided at the bottom end of the core pulling rod 7 , and the first slide rail 6 is slidably connected to the first slide groove 10 .

[0024] Specifically, the core pulling of the core pulling rod 7 is achieved through the cooperation between the first slide rail 6 and the first slide groove 10 .

[0025] An oblique hole 11 adapted to the core-pulling rod 7 is provided in the middle of the second fixed mold 4 , and the core-pulling rod 7 is inserted and connected with the oblique hole 11 .

[0026] Specifically, by providing the oblique hole 11 , it is convenient to extend the core pulling rod 7 into the mold cavity.

[0027] A round hole is formed at the top of the core-pulling rod 7 , and the round hole has the same size as the protruding column at the bottom of the plastic part 5 .

[0028] Specifically, the formation of the bumps on the surface of the plastic part 5 is achieved by opening the round holes.

[0029] In a specific implementation, when the core-pulling structure is used for injection molding of a plastic part 5 with a bump, when the first fixed mold 1 is separated from the second fixed mold 4, the movable mold slider 3 slides downward on the side of the fixed mold insert 2, and the movable mold slider 3 slides downward, and the core-pulling rod 7 is pushed to move to one side of the first slide rail 6 by the thrust, and the top of the core-pulling rod 7 is separated from the plastic part 5 by the sliding of the core-pulling rod 7, completing the core-pulling demolding of the plastic part 5, thereby improving the demolding efficiency of the plastic part 5 with the bump.

[0030] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A mold core-pulling structure for an undercut positioning pin on the front wall of a motorcycle or electric vehicle, comprising a first fixed mold (1), a fixed mold insert (2), a movable mold slider (3) and a second fixed mold (4), characterized in that: A mold cavity is provided between the first fixed mold (1) and the second fixed mold (4), a plastic part (5) is injection-molded inside the mold cavity, a fixed mold insert (2) is fixedly provided on one side of the bottom end of the first fixed mold (1), a movable mold slider (3) is slidably connected to the side of the fixed mold insert (2), a core pulling rod (7) is slidably connected to one side of the top end of the movable mold slider (3), and the core pulling rod (7) passes through the second fixed mold (4) and extends to the inside of the mold cavity.

2. A mold core-pulling structure for an undercut positioning pin on the front wall of a motorcycle or electric vehicle according to claim 1, characterized in that: An assembly block is fixedly provided on the top of the fixed mold insert (2), and an assembly groove is opened on one side of the bottom end of the first fixed mold (1), and the assembly block extends to the inside of the assembly groove for fixed connection.

3. The mold core-pulling structure of the undercut positioning pin of the front wall of a motorcycle or electric vehicle according to claim 2, characterized in that: A second slide rail (8) is fixedly provided on the side of the fixed mold insert (2), a second slide groove (9) is opened on the side of the movable mold slider (3), and the second slide rail (8) is slidably connected to the second slide groove (9).

4. A mold core-pulling structure for an undercut positioning pin of a motorcycle or electric vehicle front wall according to claim 3, characterized in that: A first slide rail (6) is fixedly provided on one side of the top end of the movable mold slider (3), a first slide groove (10) is provided at the bottom end of the core pulling rod (7), and the first slide rail (6) is slidably connected to the first slide groove (10).

5. The mold core-pulling structure of the undercut positioning pin of the front wall of a motorcycle or electric vehicle according to claim 1, characterized in that: An oblique hole (11) adapted to the core-pulling rod (7) is provided in the middle of the second fixed mold (4), and the core-pulling rod (7) is interlaced and connected with the oblique hole (11).

6. A mold core-pulling structure for an undercut positioning pin of a motorcycle or electric vehicle front wall according to claim 5, characterized in that: A round hole is formed at the top of the core-pulling rod (7), and the round hole has the same size as the protruding column at the bottom of the plastic part (5).

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