Rearview mirror supporting frame mold

Abstract

According to the rearview mirror supporting frame mold, a rearview mirror supporting frame comprises an installation base and a supporting rod, the supporting rod and the installation base are integrally formed in an injection molding mode, and the supporting rod is in a hollow shape; the lower die is matched with the upper die; wherein a cavity matched with the rearview mirror support in shape is formed between the upper die and the lower die; wherein the end face of the upper die is provided with a sprue gate, the upper die is internally provided with a runner, and the sprue gate, the runner and the cavity are communicated; an ejection piece is arranged at the bottom of the lower die, and the execution end of the ejection piece can penetrate through the cavity to abut against the rearview mirror supporting frame; wherein a core pulling mechanism is arranged between the upper die and the lower die, the core pulling mechanism comprises a first core pulling piece and a second core pulling piece, and the first core pulling piece and the second core pulling piece abut against the inner wall face of the rearview mirror supporting frame. Therefore, in the core pulling process, the situation that a mold clamping box product is damaged is avoided, and the mold has the advantages of being simple in structure and easy to manufacture.

Description

Technical Field

[0001] This utility model relates to molds, specifically to a rearview mirror support bracket mold. Background Technology

[0002] The rearview mirror support bracket has a curved and hollow structure. Existing mold structures present difficulties in core-pulling during the process, leading to product breakage or mold jamming. Furthermore, the mold structure is complex. Therefore, it is necessary to improve upon the shortcomings of existing technology. Utility Model Content

[0003] This application aims to address the problems mentioned in the background section.

[0004] This utility model discloses a rearview mirror support bracket mold, comprising:

[0005] A rearview mirror support bracket, comprising a mounting base and a support rod integrally injection molded with the mounting base, wherein the support rod is hollow;

[0006] An upper mold and a lower mold that matches the upper mold;

[0007] The upper mold and the lower mold have a cavity that matches the shape of the rearview mirror support;

[0008] The upper mold has a pouring gate on its end face and a flow channel inside the upper mold. The pouring gate, the flow channel, and the cavity are connected.

[0009] The bottom of the lower mold is provided with an ejector, and the actuating end of the ejector can pass through the cavity and abut against the rearview mirror support frame.

[0010] The upper mold and the lower mold are provided with a core-pulling mechanism, which includes a first core-pulling component and a second core-pulling component. The first core-pulling component and the second core-pulling component abut against the inner wall surface of the rearview mirror support frame. This utility model divides the core-pulling structure into two parts and uses a splicing method for independent core pulling. This avoids the situation of product breakage during the core pulling process. In addition, the mold has the advantages of simple structure and easy manufacturing.

[0011] In one specific embodiment, guide pillars are fixed around the upper mold, and linear bearings through which the guide pillars can pass are fixed around the lower mold, resulting in a stable mold closing process and a simple structure.

[0012] In one specific embodiment, the ejector includes a first cylinder installed on the lower mold and an ejector pin disposed at the output end of the cylinder. The end of the ejector pin matches the concave arc of the cavity, and the first cylinder drives the ejector pin to move to facilitate product ejection.

[0013] In one specific embodiment, the first core-pulling component includes a base fixed to the lower mold and a second cylinder mounted on the base. A swing arm is rotatably connected to the base. The output end of the second cylinder is pivotally connected to the swing arm. A first sealing tube is fixed to the end of the swing arm. The end of the first sealing tube is tapered. The second cylinder drives the swing arm to move along the arc trajectory of the product itself to achieve sealing and core-pulling.

[0014] In one specific embodiment, a limiting block is fixed to the lower end face of the upper mold. The limiting block abuts against the outer side of the swing arm. The limiting block can limit the range of motion of the swing arm and ensure stability during the injection molding process.

[0015] In one specific embodiment, the second core-pulling component includes a fixing rod fixed to the lower mold and a second sealing rod disposed at the end of the fixing rod. The end of the second sealing rod is provided with a groove that matches the cone shape. The first sealing rod and the second sealing rod are spliced ​​by the conical surface cooperation, which can be seamlessly connected and easily separated from each other.

[0016] Beneficial effects: This utility model divides the core-pulling structure into two parts and uses a splicing method for independent core pulling, thus avoiding damage to the mold box product during the core pulling process. In addition, the mold has the advantages of simple structure and easy manufacturing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a car rearview mirror support bracket mold according to this embodiment;

[0018] Figure 2 This is a structural diagram of the rearview mirror support bracket;

[0019] Figure 3 This is a schematic diagram of the upper mold structure;

[0020] Figure 4 This is a schematic diagram of the lower mold structure;

[0021] Figure 5 This is a structural schematic diagram of the first core-pulling component;

[0022] Figure 6 This is a structural schematic diagram of the second core-pulling component.

[0023] In the diagram: 100, mold; 1, upper mold; 10, sprue; 11, guide post; 2, lower mold; 20, linear bearing; 21, cavity; 3, core pulling mechanism; 30, second cylinder; 31, base; 32, swing arm; 33, first sealing rod; 34, cone; 35, fixing rod; 36, second sealing rod; 37, groove; 4, rearview mirror support bracket; 40, mounting base; 41, support rod. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "counterclockwise," "clockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model according to the specific circumstances.

[0027] Example

[0028] See Figures 1-6This embodiment provides a rearview mirror support bracket 4 mold 100, including a rearview mirror support bracket 4, which includes a mounting base 40 and a support rod 41 integrally injection molded with the mounting base 40, the support rod 41 being hollow; an upper mold 1 and a lower mold 2 matching the upper mold 1; wherein, a cavity 21 is provided between the upper mold 1 and the lower mold 2 to fit the shape of the rearview mirror support; wherein, the end face of the upper mold 1 is provided with a pouring gate 10, and the interior of the upper mold 1 is provided with a runner, the pouring gate 10, the runner, and the cavity 21 are connected; wherein, the lower... The bottom of mold 2 is provided with an ejector, the execution end of which can pass through the cavity 21 and abut against the rearview mirror support frame 4; wherein, a core-pulling mechanism 3 is provided between the upper mold 1 and the lower mold 2, the core-pulling mechanism 3 includes a first core-pulling component and a second core-pulling component, the first core-pulling component and the second core-pulling component abut against the inner wall surface of the rearview mirror support frame 4. This utility model divides the core-pulling structure into two parts and uses a splicing method for independent core pulling, thus avoiding the situation of product breakage during the core pulling process, and the mold has the advantages of simple structure and easy manufacturing.

[0029] See Figure 3 and Figure 4 The upper mold 1 is fixed with guide pillars 11 around its perimeter, and the lower mold 2 is fixed with linear bearings 20 through which the guide pillars 11 can pass. The mold closing process is stable and the structure is simple.

[0030] The ejector includes a first cylinder installed on the lower mold 2 and an ejector pin (not shown in the figure) located at the output end of the cylinder. The end of the ejector pin matches the concave arc of the cavity 21. The first cylinder drives the ejector pin to move, which facilitates the product ejection from the mold.

[0031] See Figure 5 The first core-pulling component includes a base 31 fixed to the lower mold 2 and a second cylinder 30 installed on the base 31. A swing arm 32 is rotatably connected to the base 31. The output end of the second cylinder 30 is pivotally connected to the swing arm 32. A first sealing tube is fixed to the end of the swing arm 32. The end of the first sealing tube is tapered 34. The second cylinder 30 drives the swing arm 32 to move along the arc trajectory of the product itself to achieve sealing and core pulling.

[0032] See Figure 3 A limiting block is fixed to the lower end face of the upper mold 1. The limiting block abuts against the outer side of the swing arm 32. The limiting block can limit the range of motion of the swing arm 32 to ensure stability during the injection molding process.

[0033] See Figure 6The second core-pulling component includes a fixing rod 35 fixed to the lower mold 2 and a second sealing rod 36 provided at the end of the fixing rod 35. The end of the second sealing rod 36 is provided with a groove 37 that matches the cone 34. The first sealing rod 33 and the second sealing rod 36 are spliced ​​by the cone surface cooperation, which can be seamlessly connected and easy to separate.

[0034] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A mold for a rearview mirror support bracket, characterized by, include: A rearview mirror support bracket, comprising a mounting base and a support rod integrally injection molded with the mounting base, wherein the support rod is hollow; An upper mold and a lower mold that matches the upper mold; The upper mold and the lower mold have a cavity that matches the shape of the rearview mirror support; The upper mold has a pouring gate on its end face and a flow channel inside the upper mold. The pouring gate, the flow channel, and the cavity are connected. The bottom of the lower mold is provided with an ejector, and the actuating end of the ejector can pass through the cavity and abut against the rearview mirror support frame. The upper mold and the lower mold are provided with a core-pulling mechanism, which includes a first core-pulling component and a second core-pulling component. The first core-pulling component and the second core-pulling component abut against the inner wall surface of the rearview mirror support frame.

2. A mold for a mirror support as defined in claim 1, wherein: The upper mold is fixed with guide pillars around its perimeter, and the lower mold is fixed with linear bearings through which the guide pillars pass.

3. A mold for a mirror support as defined in claim 2, wherein: The ejector includes a first cylinder installed on the lower mold and an ejector pin located at the output end of the cylinder, the end of the ejector pin matching the concave curvature of the cavity.

4. A mold for a mirror support as defined in claim 3, wherein: The first core-pulling component includes a base fixed to the lower mold and a second cylinder installed on the base. A swing arm is rotatably connected to the base. The output end of the second cylinder is pivotally connected to the swing arm. A first sealing tube is fixed to the end of the swing arm. The end of the first sealing tube is tapered.

5. A mold for a mirror support as defined in claim 4 wherein: A limit block is fixed to the lower end face of the upper mold, and the limit block abuts against the outer side of the swing arm.

6. A mold for a mirror support as defined in claim 5, wherein: The second core-pulling component includes a fixing rod fixed to the lower mold and a second sealing rod provided at the end of the fixing rod, wherein the end of the second sealing rod is provided with a groove that matches the cone shape.

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