An injection mold for an automobile rearview mirror housing

Abstract

The utility model provides a kind of automobile rearview mirror shell injection mold, it is related to injection mold technical field, comprising: lower mould;The top of the left and right sides of lower mould is symmetrically welded with four guide pillars, one upper mould is slidably installed between four guide pillars, and an injection hole is arranged in the middle position of the top of upper mould;The bottom of the upper mould is slidably installed with an auxiliary baffle, and a magnet frame is further fixed in the inside of the upper mould, and the top of the auxiliary baffle is fixed with an injection hole baffle plate.This injection mold can avoid dust entering the injection mold when storing, to avoid affecting subsequent use.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold for an automotive rearview mirror housing. Background Technology

[0002] The rearview mirror housing is one of the key components in the exterior design and functionality of a car. It serves to protect the internal structure of the rearview mirror and prevent dust and rainwater erosion. Injection molds are usually used to process the rearview mirror housing.

[0003] Currently used injection molds typically have their injection holes directly exposed. When storing the injection mold after use, dust can easily enter the internal cavity of the mold through the injection holes. If the holes are not cleaned properly during subsequent injection molding, it will affect the injection molding effect of the parts. Summary of the Invention

[0004] This utility model provides an injection mold for a car rearview mirror housing, which can prevent dust from entering the injection mold during storage, thus avoiding affecting subsequent use.

[0005] In a first aspect, this utility model provides an injection mold for a car rearview mirror housing, specifically including: a lower mold; four guide pillars are symmetrically welded to the top of the left and right sides of the lower mold, and an upper mold is slidably installed between the four guide pillars, with an injection hole provided at the top center of the upper mold; an auxiliary baffle is slidably installed at the bottom of the upper mold, and a magnet frame is fixed inside the upper mold, with an injection hole baffle fixed at the top of the auxiliary baffle.

[0006] The auxiliary baffle and the injection hole baffle are fixedly connected by two round rods, and the left and right sides of the magnet frame and the top outer wall of the upper mold are provided with corresponding round holes.

[0007] The auxiliary baffle is a rectangular frame structure with a wider upper section and a narrower lower section. The upper part of the auxiliary baffle can slide up and down in the slot inside the upper mold.

[0008] When the auxiliary baffle slides to the top, it will be in close contact with the bottom surface of the magnet frame, and the bottom surface of the auxiliary baffle will be on the same plane as the bottom surface of the upper mold.

[0009] The injection hole baffle is a horizontally arranged long strip plate. When the auxiliary baffle slides down to the bottom, the bottom surface of the injection hole baffle will be in close contact with the top surface of the upper mold, and the injection hole baffle will block the injection hole.

[0010] The lower mold and the upper mold are both aluminum alloy molds, and the bottom surface of the auxiliary baffle and the bottom surface of the injection hole baffle are both covered with a layer of rubber.

[0011] The magnet frame is located directly above the auxiliary baffle, and a magnet is also provided inside the upper part of the auxiliary baffle. The magnet frame and the magnet inside the auxiliary baffle repel each other.

[0012] This utility model provides an injection mold for a car rearview mirror housing, which has the following beneficial effects:

[0013] The injection hole baffle in this invention can block the opening at the top of the injection hole, and the auxiliary baffle can block the gap between the lower mold and the upper mold. When the mold is closed, the auxiliary baffle will automatically retract into the upper mold, and the injection hole baffle will not block the injection hole. When storage is required, the gap between the lower mold and the upper mold and the injection hole can be completely sealed to prevent dust from entering the injection mold and affecting subsequent use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This application shows a schematic diagram of the spindle side after the upper mold has been moved upwards;

[0018] Figure 2 This application shows a schematic diagram of the spindle side after the upper mold has been moved down;

[0019] Figure 3 This invention provides a schematic diagram of the spindle side after the upper and lower molds are closed.

[0020] Figure 4 An isometric view of the auxiliary baffle, magnet frame, and injection hole baffle in this application is shown;

[0021] Figure 5 This invention illustrates the structure of the upper mold after it has been moved down and sectioned.

[0022] Figure 6 This invention illustrates the structure of the upper mold after it has been cut and joined with the lower mold.

[0023] List of reference numerals

[0024] 1. Lower mold; 2. Guide pillar; 3. Upper mold; 4. Injection hole; 5. Auxiliary baffle; 6. Magnet frame; 7. Injection hole baffle. Detailed Implementation

[0025] 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 some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Example 1: Please refer to Figures 1 to 6 :

[0027] This utility model discloses an injection mold for a car rearview mirror housing, comprising: a lower mold 1; four guide pillars 2 are symmetrically welded to the top of the left and right sides of the lower mold 1, and an upper mold 3 is slidably installed between the four guide pillars 2. An injection hole 4 is provided at the center of the top of the upper mold 3. The lower mold 1 and the upper mold 3 cooperate to perform injection molding on the car rearview mirror housing. The guide pillars 2 are used to slide and support the upper mold 3. During injection, injection material can be injected through the injection hole 4. An auxiliary baffle 5 is slidably installed at the bottom of the upper mold 3. Inside the upper mold 3, there is a fixed magnetic frame 6. A mold injection hole baffle 7 is fixed on the top of the auxiliary baffle 5. The magnetic frame 6 is used to push the auxiliary baffle 5 to slide downward. When the mold is finished and needs to be stored, the hydraulic cylinder can be controlled to push the upper mold 3 downward until the bottom surface of the auxiliary baffle 5 is just in close contact with the top surface of the lower mold 1. At this time, the auxiliary baffle 5 can seal the gap between the lower mold 1 and the upper mold 3. Moreover, at this time, the mold injection hole baffle 7 will still close the injection hole 4, thus effectively preventing dust from entering the mold through the injection hole 4.

[0028] In this embodiment, as Figures 3-6 As shown, the auxiliary baffle 5 and the injection hole baffle 7 are fixedly connected by two round rods, and the left and right sides of the magnet frame 6 and the top outer wall of the upper mold 3 are provided with corresponding round holes, so that the auxiliary baffle 5 can drive the injection hole baffle 7 to move up and down.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figures 4-6 As shown, the auxiliary baffle 5 is a rectangular frame structure. The upper part of the auxiliary baffle 5 has a wide cross section and the lower part has a narrow cross section. The upper part of the auxiliary baffle 5 can slide up and down in the empty groove inside the upper mold 3. When injection molding is required, the hydraulic cylinder can be controlled to push the upper mold 3 to slide down. During this process, the bottom surface of the auxiliary baffle 5 will first be in close contact with the top surface of the lower mold 1, and then the upper part of the auxiliary baffle 5 will slide up in the empty groove inside the upper mold 3, thereby ensuring that the upper mold 3 and the lower mold 1 can complete the mold closing.

[0030] In this embodiment, as Figure 3 and Figure 6 As shown, when the auxiliary baffle 5 slides up to the top, it will be in close contact with the bottom surface of the magnet frame 6. At the same time, the bottom surface of the auxiliary baffle 5 will be on the same plane as the bottom surface of the upper mold 3. During injection molding, the hydraulic cylinder can be controlled to push the upper mold 3 to slide down. During this process, the bottom surface of the auxiliary baffle 5 will first be in close contact with the top surface of the lower mold 1. Then, the upper part of the auxiliary baffle 5 will slide upward in the empty groove inside the upper mold 3, so that the auxiliary baffle 5 can be completely retracted into the upper mold 3. Finally, the upper mold 3 will be in close contact with the lower mold 1 to complete the mold closing.

[0031] In this embodiment, as Figures 1-6 As shown, the injection hole baffle 7 is a horizontally arranged long strip plate. When the auxiliary baffle 5 slides down to the bottom, the bottom surface of the injection hole baffle 7 will be in close contact with the top surface of the upper mold 3. At the same time, the injection hole baffle 7 will block the injection hole 4. When the mold is finished and needs to be stored, the hydraulic cylinder can be controlled to push the upper mold 3 down until the bottom surface of the auxiliary baffle 5 is in close contact with the top surface of the lower mold 1. At this time, the auxiliary baffle 5 can seal the gap between the lower mold 1 and the upper mold 3. Moreover, the injection hole baffle 7 will still close the injection hole 4, thus effectively preventing dust from entering the mold through the injection hole 4.

[0032] In this embodiment, as Figures 4-6 As shown, the magnet frame 6 is located directly above the auxiliary baffle 5. A magnet is also provided inside the upper part of the auxiliary baffle 5. The magnet frame 6 and the magnet inside the auxiliary baffle 5 repel each other. After injection molding is completed, the hydraulic cylinder is controlled to drive the upper mold 3 to slide upward. During this process, the magnet frame 6 will be pushed downward by the magnet inside the auxiliary baffle 5, so that the injection hole baffle 7 can close the injection hole 4 again.

[0033] Example 2, based on Example 1, such as Figures 1-6 As shown, both the lower mold 1 and the upper mold 3 are aluminum alloy molds, and the bottom surface of the auxiliary baffle 5 and the bottom surface of the injection hole baffle 7 are covered with a layer of rubber. Therefore, the lower mold 1 and the upper mold 3 will not affect the magnet frame 6 and the magnet inside the auxiliary baffle 5. When the mold is finished and needs to be stored, the hydraulic cylinder can be controlled to push the upper mold 3 down until the bottom surface of the auxiliary baffle 5 is just in close contact with the top surface of the lower mold 1. At the same time, the bottom of the injection hole baffle 7 will also be in close contact with the top surface of the upper mold 3. Therefore, the rubber covering its bottom can ensure a seal.

[0034] The working principle of this embodiment is as follows: During installation, the upper mold 3 can be fixedly connected to the external hydraulic cylinder, thereby driving the upper mold 3 to slide up and down on the outside of the guide post 2. When this mold is needed to inject the car rearview mirror housing, the hydraulic cylinder is first controlled to push the upper mold 3 downward. During this process, the bottom surface of the auxiliary baffle 5 will first be in close contact with the top surface of the lower mold 1. Then, the upper part of the auxiliary baffle 5 will slide upward in the empty groove inside the upper mold 3, thereby allowing the auxiliary baffle 5 to completely retract into the upper mold 3. Finally, the upper mold 3 will be in close contact with the lower mold 1 to complete the mold closing. At this time, the auxiliary baffle 5 will also push the injection hole baffle 7 to move upward, thus exposing the injection hole 4. Then, the injection can be performed through the injection hole 4. The injection molding process is carried out by injecting the injection material. After the injection molding is completed, the hydraulic cylinder is controlled to drive the upper mold 3 to slide upward. During this process, the magnet frame 6 will be pushed downward by the magnet inside the auxiliary baffle 5, so that the injection hole baffle 7 can close the injection hole 4 again. After the upper mold 3 moves to the top, the injection-molded car rearview mirror housing can be taken out. When the mold is finished and needs to be stored, the hydraulic cylinder can be controlled to push the upper mold 3 downward until the bottom surface of the auxiliary baffle 5 is just in close contact with the top surface of the lower mold 1. At this time, the auxiliary baffle 5 can seal the gap between the lower mold 1 and the upper mold 3. Moreover, at this time, the injection hole baffle 7 will still close the injection hole 4, so as to effectively prevent dust from entering the mold through the injection hole 4.

[0035] The following points should be noted in this article:

[0036] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0037] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

Claims

1. An injection mold for a car rearview mirror housing, comprising: The lower mold (1) is characterized in that: four guide pillars (2) are symmetrically welded to the top of the left and right sides of the lower mold (1), and an upper mold (3) is slidably installed between the four guide pillars (2). An injection hole (4) is provided at the middle position of the top of the upper mold (3). An auxiliary baffle (5) is slidably installed at the bottom of the upper mold (3), and a magnet frame (6) is fixed inside the upper mold (3). An injection hole baffle (7) is fixed at the top of the auxiliary baffle (5).

2. The injection mold for a car rearview mirror housing according to claim 1, characterized in that, The auxiliary baffle (5) is a rectangular frame structure. The upper part of the auxiliary baffle (5) has a wide cross section and the lower part has a narrow cross section. The upper part of the auxiliary baffle (5) can slide up and down in the empty groove inside the upper mold (3).

3. The injection mold for a car rearview mirror housing according to claim 1, characterized in that, The injection hole baffle (7) is a horizontally arranged long strip plate. When the auxiliary baffle (5) slides down to the bottom, the bottom surface of the injection hole baffle (7) will be in close contact with the top surface of the upper mold (3). At the same time, the injection hole baffle (7) will block the injection hole (4).

4. The injection mold for a car rearview mirror housing according to claim 1, characterized in that, The magnet frame (6) is located directly above the auxiliary baffle (5). A magnet is also provided inside the upper part of the auxiliary baffle (5), and the magnet frame (6) and the magnet inside the auxiliary baffle (5) repel each other.

5. The injection mold for a car rearview mirror housing according to claim 1, characterized in that, The auxiliary baffle (5) and the injection hole baffle (7) are fixedly connected by two round rods, and the left and right sides of the magnet frame (6) and the top outer wall of the upper mold (3) are provided with corresponding round holes.

6. The injection mold for a car rearview mirror housing according to claim 1, characterized in that, When the auxiliary baffle (5) slides up to the top, it will be in close contact with the bottom surface of the magnet frame (6), and at the same time, the bottom surface of the auxiliary baffle (5) will be on the same plane as the bottom surface of the upper mold (3).

7. The injection mold for a car rearview mirror housing according to claim 1, characterized in that, Both the lower mold (1) and the upper mold (3) are aluminum alloy molds, and the bottom surface of the auxiliary baffle (5) and the bottom surface of the injection hole baffle (7) are covered with a layer of rubber.

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