Demolding structure of vehicle-mounted navigation middle plate forming mold

Abstract

The utility model discloses a demoulding structure of a vehicle-mounted navigation middle plate forming mould, which comprises a top plate and a top rod which are arranged on a movable mould, a positioning block and a sliding block are further arranged between the top rod and the top plate, the positioning block is arranged on the top plate, the sliding block is arranged on the positioning block in a sliding mode, and the top rod is embedded on the sliding block and can slide relative to the sliding block. According to the utility model, the positioning block and the sliding block are arranged between the ejector rod and the ejector plate, so that the ejector rod can translate or deflect relative to the ejector plate under the action of counter-acting force when pushing a product to demould, thereby reducing the demoulding thrust applied to the product by the push rod, achieving the purpose of avoiding or slowing down the deformation of the product, and slowing down the damage of the ejector rod; the service life of the ejector rod is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and in particular to the demolding structure of a mold for forming the middle plate of a vehicle navigation system. Background Technology

[0002] The center plate of a car navigation system is generally a thin plastic frame. It has a relatively large enclosed area but a thin wall thickness. Its frame usually has multiple structures for positioning or limiting navigation functions. The product itself has poor structural stability. Therefore, during the plastic molding process, the product is prone to twisting and deformation after demolding. In order to ensure the functionality of the product and ensure assembly quality, the product usually needs to undergo a manual or automatic leveling process after molding and demolding. The production time is long and the production cost is high. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a demolding structure for a vehicle navigation mid-plate forming mold. By setting a positioning block and a slider between the ejector rod and the top plate, the ejector rod can translate or deflect relative to the top plate under the action of the reaction force when pushing the product to demold. This reduces the demolding force applied to the product by the ejector rod, thereby avoiding or slowing down product deformation, reducing damage to the ejector rod, and extending the service life of the ejector rod.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The demolding structure of the vehicle navigation mid-plate forming mold is provided on the moving mold of the forming mold. The moving mold has a top plate, and the top plate has several ejector rods. One end of each ejector rod passes sequentially through the moving template and the moving mold core, extending to the inner wall of the cavity. The top plate is connected to a driving device and can be translated relative to the moving template and the moving mold core under its drive, thereby causing the ejector rods on it to extend into the cavity and lift the product inside. Wherein:

[0006] An adjustment assembly is also provided between several of the top rods and the top plate. Each adjustment assembly includes a positioning block and a slider. Each positioning block is detachably fixed to the top plate and is provided with a first slide rail. Each slider is slidably mounted on a first slide rail and is provided with a second slide rail with a rotary structure. One end of each top rod is matched and embedded in a second slide rail and can slide relative to it under the action of external force.

[0007] As a further explanation of the above technical solution:

[0008] In the above technical solution, the first slide rail and the second slide rail on each set of adjustment components are perpendicular to each other and are parallel to the top plate.

[0009] In the above technical solution, each of the first slides is a T-shaped groove, with its smaller end facing the slider.

[0010] In the above technical solution, each of the second slides includes a sliding part and a limiting part that are connected. Each sliding part is a cylindrical structure, and each limiting part is a horn structure and is located on the radial side of the sliding part. Its smaller end is connected to the sliding part, and its larger end extends to one end face of the block.

[0011] In the above technical solution, each of the larger ends of the limiting part is provided with a rounded corner where it connects with the slider, and each of the top rods is provided with a clearance groove on its two opposite side walls that is adapted to the limiting part.

[0012] In the above technical solution, each of the adjustment components further includes a guide block, each of the guide blocks is detachably fixed on the moving template, and each of the guide blocks is provided with a guide hole groove, and each of the guide hole grooves is slidably installed with a top rod.

[0013] In the above technical solution, each guide block is provided with one or more guide holes or grooves.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a positioning block and a slider between the ejector pin and the top plate, the ejector pin can translate or deflect relative to the top plate under the action of the reaction force when pushing the product to demold, thereby reducing the demolding force applied to the product by the ejector pin, achieving the purpose of avoiding or slowing down product deformation, and can also reduce the damage to the ejector pin and extend the service life of the ejector pin. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of this embodiment (the moving template and moving mold core are not shown);

[0016] Figure 2 This is an exploded view of the adjustment component in this embodiment;

[0017] Figure 3 This is a schematic diagram of the slider in this embodiment.

[0018] In the figure: 10, top plate; 20, top rod; 204, clearance groove; 30, adjustment component; 31, positioning block; 32, slider; 33, guide block; 40, product; 1, first slide rail; 2, second slide rail; 201, sliding part; 202, limiting part; 203, rounded corner; 3, guide hole groove. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a 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" of a 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.

[0021] like Figure 1-3 As shown, the demolding structure of the vehicle navigation mid-plate forming mold is located on the moving mold of the forming mold. A top plate 10 is provided on the moving mold, and several ejector pins 20 are provided on the top plate 10. One end of each ejector pin 20 passes sequentially through the moving template and the moving mold core and extends to the inner wall of the cavity. The top plate 10 is connected to a driving device and can be translated relative to the moving template and the moving mold core under its drive, thereby causing the ejector pins 20 on it to extend into the cavity and lift the product inside; wherein:

[0022] An adjustment assembly 30 is also provided between several push rods 20 and the top plate 10. Each adjustment assembly 30 includes a positioning block 31 and a slider 32. Each positioning block 31 is detachably fixed on the top plate 10 and is provided with a first slide rail 1. Each slider 32 is slidably mounted on a first slide rail 1 and is provided with a second slide rail 2 with a rotary structure. One end of each push rod 20 is matched and embedded in a second slide rail 2 and can slide relative to it under the action of external force.

[0023] During demolding, ejector pin 20 pushes the product away from the moving mold core. When some areas of the product are difficult to leave the mold due to product structure or other reasons, ejector pin 20 at that location will slide in the second slide 2 under the action of reaction force, causing the direction of the thrust of ejector pin 20 to change. The thrust is decomposed into a decomposed thrust along the demolding direction and a loosening thrust in other directions. These two thrusts are relatively small and can push the product from different directions, thereby avoiding or slowing down product deformation. At the same time, the reaction force can also push ejector pin 20 to slide on the first slide 1, reducing the damage of the reaction force to ejector pin 20 and extending the service life of ejector pin 20.

[0024] Furthermore, the first slide rail 1 and the second slide rail 2 on each set of adjustment components 30 are perpendicular to each other and are both parallel to the top plate 10. In this embodiment, each first slide rail 1 is a T-shaped groove, with its smaller end facing the slider 32; each second slide rail 2 includes a connected sliding part 201 and a limiting part 202. Each sliding part 201 is a cylindrical structure, and each limiting part 202 is a horn structure and is provided on the radial side of the sliding part 201, with its smaller end connected to the sliding part 201 and its larger end extending to one end face of the slider 32.

[0025] Furthermore, each limiting part 202 has a rounded corner 203 at the larger end where it connects with the slider 32, and each push rod 20 has a relief groove 204 on its two opposite side walls that is adapted to the limiting part.

[0026] Furthermore, each adjustment component 30 also includes a guide block 33, each guide block 33 is detachably fixed on the moving template, and each guide block 3 is provided with a guide hole groove 3, and a top rod 20 is slidably installed in each guide hole groove 3; each guide block 33 is provided with one or more guide hole grooves 3.

[0027] Understandably, the guide block 33 can further guide the longer guide rod 20. In this embodiment, for ease of assembly, two guide rods 20 that are close together share the same guide block 33.

[0028] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A demolding structure for a vehicle navigation mid-plate forming mold, comprising a top plate on a moving mold of the forming mold, the moving mold having a top plate and a plurality of ejector rods on the top plate, one end of each ejector rod passing sequentially through a moving mold plate and a moving mold core and extending to the inner wall of the cavity; the top plate being connected to a driving device and capable of translating relative to the moving mold plate and the moving mold core under its drive, thereby driving the plurality of ejector rods thereon to extend into the cavity and lift the product inside; characterized in that: An adjustment assembly is also provided between several of the top rods and the top plate. Each adjustment assembly includes a positioning block and a slider. Each positioning block is detachably fixed to the top plate and is provided with a first slide rail. Each slider is slidably mounted on a first slide rail and is provided with a second slide rail with a rotary structure. One end of each top rod is matched and embedded in a second slide rail and can slide relative to it under the action of external force.

2. The demolding structure of the vehicle navigation middle plate forming mold according to claim 1, characterized in that, The first and second slides on each set of adjustment components are perpendicular to each other and are both parallel to the top plate.

3. The demolding structure of the vehicle navigation middle plate forming mold according to claim 1, characterized in that, Each of the first slides is a T-shaped groove, with its smaller end facing the slider.

4. The demolding structure of the vehicle navigation middle plate forming mold according to claim 1, characterized in that, Each of the second slide rails includes a connected sliding portion and a limiting portion. Each sliding portion is a cylindrical structure, and each limiting portion is a horn structure located on the radial side of the sliding portion. Its smaller end is connected to the sliding portion, and its larger end extends to one end face of the block.

5. The demolding structure of the vehicle navigation middle plate forming mold according to claim 4, characterized in that, Each of the limiting parts has a rounded corner at the larger end where it connects with the slider, and each of the top rods has a clearance groove on its two opposite sidewalls that is adapted to the limiting part.

6. The demolding structure of the vehicle navigation middle plate forming mold according to any one of claims 1-5, characterized in that, Each of the adjustment components further includes a guide block, each of the guide blocks being detachably fixed to the moving template and having a guide slot thereon, and each of the guide slots having a top rod slidably mounted thereon.

7. The demolding structure of the vehicle navigation middle plate forming mold according to claim 6, characterized in that, Each of the guide blocks has one or more guide holes or slots.

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