Automobile rearview mirror injection mold

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold for an automobile rearview mirror, which comprises a first mold and a second mold which are connected in a sliding manner, and is characterized in that a forming seat is mounted in the second mold, and a mold core for injection molding of a workpiece is arranged in the forming seat; the second die is provided with an inclined ejection piece used for driving a workpiece to be discharged, and a straight ejection piece used for driving the workpiece to be discharged is arranged at the bottom of the forming base. After the first mold and the second mold are opened, the inclined ejection piece drives the workpiece to be away from the forming base, then the straight ejection piece drives the workpiece to be discharged, operation is separated, discharging of the workpiece is greatly facilitated, meanwhile, damage to the workpiece caused by discharging can be avoided, the injection molding efficiency can be improved while the yield of the workpiece after injection molding is improved, and the using effect is better.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for an automotive rearview mirror. Background Art

[0002] A car rearview mirror is a device used by drivers to observe what's behind them, typically mounted on the car door or attached to the interior rearview mirror. Car rearview mirrors can be classified into two categories: external and internal. The main material of a car rearview mirror is plastic. Manufacturing this type of mirror requires the creation of an injection mold. An injection mold, also known as an injection molding die, is one of the molds used to produce plastic products. The manufacturing process of injection molds requires the use of advanced CNC machining technology to ensure the precision and quality of the mold.

[0003] Injection molds are essential tools in the injection molding process. Their main function is to inject molten plastic into the mold for cooling and shaping. Injection molds can be designed and manufactured to meet the requirements of the product's shape, size, and material, ensuring the production of qualified products.

[0004] For example, Chinese patent application number 202020923389.8, authorized publication number CN212352748U, entitled "An Injection Mold for a Car Rearview Mirror Shell," discloses an injection mold for a car rearview mirror shell, including a first mold and a second mold. The first mold and the mold cavity are respectively provided with a mold cavity in the middle of opposite sides. An injection hole is provided in the middle of the top of the first mold, with one end penetrating and extending into the top mold cavity. Through grooves are provided around the top of the first mold. A fixing groove is provided around the inside of the first mold and at the bottom of the through groove. A bearing block is fixedly installed inside the fixing groove.

[0005] The injection mold described in the aforementioned patent, equipped with positioning blocks and grooves, allows for assembly of the first and second molds by twisting four rotating blocks to connect and tighten four threaded rods into four threaded grooves. However, this method has certain shortcomings in the demolding process of automotive rearview mirrors, as it can lead to inconvenience and even damage to the workpiece. Utility Model Content

[0006] The purpose of this utility model is to provide an injection mold for automotive rearview mirrors to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for an automotive rearview mirror, comprising a first mold and a second mold, wherein the first mold and the second mold are slidably connected, a molding seat is installed inside the second mold, and a mold core for injection molding is provided inside the molding seat; an inclined ejector for driving the workpiece to be ejected is provided on the second mold, and a straight ejector for driving the workpiece to be ejected is provided at the bottom of the molding seat; after the first mold and the second mold are opened, the inclined ejector drives the workpiece away from the molding seat, and then the straight ejector drives the workpiece to be ejected.

[0008] Furthermore, the second mold is provided with a drive cylinder for driving the first mold and the second mold to separate, for driving the first mold and the second mold to open and close.

[0009] Furthermore, the inclined ejector includes an ejector cylinder mounted on the second mold, a drive block is mounted on the output end of the ejector cylinder, and an ejector block is provided on the drive block.

[0010] Furthermore, the straight ejector includes multiple sets of straight ejector rods slidably connected to the second mold, with straight ejector blocks provided on the multiple sets of support rods, and a drive unit for driving the multiple sets of straight ejector rods to slide is provided on the outer side of the second mold.

[0011] Furthermore, the drive unit includes a drive plate slidably connected to the second mold, multiple sets of straight push rods are mounted on the drive plate, and a servo cylinder for driving the drive plate to slide is provided on the bottom of the drive plate.

[0012] Furthermore, a limiting component is provided between the first mold and the second mold.

[0013] Furthermore, the limiting component includes multiple sets of limiting cylinders fixedly connected to the first mold, and each limiting cylinder has a limiting rod slidably connected to the second mold.

[0014] Furthermore, the first mold has an injection port that communicates with the molding seat.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This automotive rearview mirror injection mold, through the cooperation between the first mold, the second mold, the molding seat, the inclined ejector, and the straight ejector, etc., during the working process, after the first mold and the second mold open, the inclined ejector drives the workpiece away from the molding seat, and then the straight ejector drives the workpiece to be unloaded. The separate operation greatly facilitates the unloading of the workpiece, and at the same time avoids damage to the workpiece caused by unloading. It improves the yield rate of the workpiece after injection molding and also improves the injection molding efficiency, resulting in better performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the internal structure of the mold provided in this embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the direct-mount component installation method provided in this embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the inclined top component structure provided in an embodiment of the present utility model;

[0021] Figure 5 A schematic diagram of the workpiece structure provided for an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. First mold; 2. Second mold; 3. Injection port; 4. Drive cylinder; 5. Molding seat; 6. Drive plate; 7. Mold core; 8. Angled ejector; 8.1. Ejection cylinder; 8.2. Drive block; 8.3. Ejection block; 9. Straight ejector; 9.1. Straight ejector rod; 9.2. Straight ejector block; 10. Workpiece; 11. Limiting component. Detailed Implementation

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Please see Figure 1-5 This utility model provides a technical solution: an injection mold for a car rearview mirror, including a first mold 1 and a second mold 2. The first mold 1 and the second mold 2 are slidably connected. A molding seat 5 is installed inside the second mold 2. A mold core 7 for injection molding a workpiece 10 is provided inside the molding seat 5. An inclined ejector 8 for driving the workpiece 10 to be unloaded is provided on the second mold 2. A straight ejector 9 for driving the workpiece 10 to be unloaded is provided at the bottom of the molding seat 5. After the first mold 1 and the second mold 2 are opened, the inclined ejector 8 drives the workpiece 10 away from the molding seat 5, and then the straight ejector 9 drives the workpiece 10 to be unloaded.

[0025] Specifically, the automotive rearview mirror injection mold includes a first mold 1 and a second mold 2, which are slidably connected. The second mold 2 is equipped with a drive cylinder 4 for separating the first mold 1 and the second mold 2, and for opening and closing the molds to meet operational requirements. A molding seat 5 is installed inside the second mold 2, and a mold core 7 for injection molding the workpiece 10 is provided inside the molding seat 5 to facilitate the molding of the workpiece 10. The second mold 2 is equipped with an inclined ejector 8 for discharging the workpiece 10, and a straight ejector 9 is provided at the bottom of the molding seat 5 for discharging the workpiece 10. During operation, after the first mold 1 and the second mold 2 are opened, the inclined ejector 8 drives the workpiece 10 away from the molding seat 5, and then the straight ejector 9 drives the workpiece 10 to be unloaded. The separate operation greatly facilitates the unloading of the workpiece 10, and at the same time avoids damage to the workpiece 10 caused by unloading. It improves the yield rate of the workpiece 10 after injection molding and also improves the injection molding efficiency, resulting in better performance.

[0026] In the embodiments provided by this utility model, the inclined ejector 8 includes an ejector cylinder 8.1 installed on the second mold 2. A drive block 8.2 is installed on the output end of the ejector cylinder 8.1, and an ejector block 8.3 is provided on the drive block 8.2 to facilitate ejection.

[0027] In the embodiments provided by this utility model, the straight ejector 9 includes multiple sets of straight ejector rods 9.1 slidably connected to the second mold 2, and multiple sets of support rods are provided with straight ejector blocks 9.2. A drive unit for driving the multiple sets of straight ejector rods 9.1 to slide is provided on the outside of the second mold 2. Specifically, the drive unit includes a drive plate 6 slidably connected to the second mold 2, and the multiple sets of straight ejector rods 9.1 are mounted on the drive plate 6. A servo cylinder for driving the drive plate 6 to slide is provided on the bottom of the drive plate 6. After the first mold 1 and the second mold 2 are opened, the servo cylinder drives the drive plate 6 to slide, and the drive plate 6 drives the multiple sets of straight ejector rods 9.1 to slide, so as to perform the ejection operation.

[0028] In the embodiments provided by this utility model, a limiting member 11 is further provided between the first mold 1 and the second mold 2. In the embodiments provided by this utility model, the limiting member 11 includes multiple sets of limiting cylinders fixedly connected to the first mold 1, and each limiting cylinder has a limiting rod slidably connected to the second mold 2, thereby improving the stability of the first mold 1 and the second mold 2 when sliding.

[0029] In the embodiments provided by this utility model, the first mold 1 has an injection port 3 that communicates with the molding seat 5, which facilitates injection molding operations.

[0030] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold for a rearview mirror of an automobile, comprising a first mold (1) and a second mold (2), wherein the first mold (1) and the second mold (2) are slidably connected, and characterized in that: A molding seat (5) is installed inside the second mold (2), and a mold core (7) for injection molding a workpiece (10) is arranged inside the molding seat (5); The second mold (2) is provided with an inclined ejector (8) for driving the workpiece (10) to be discharged, and the bottom of the molding seat (5) is provided with a straight ejector (9) for driving the workpiece (10) to be discharged. After the first mold (1) and the second mold (2) are opened, the inclined ejector (8) drives the workpiece (10) away from the molding seat (5), and then the straight ejector (9) drives the workpiece (10) to be discharged.

2. The automobile rearview mirror injection mold according to claim 1, characterized in that: The second mold (2) is provided with a driving cylinder (4) for driving the first mold (1) and the second mold (2) to separate, and for driving the first mold (1) and the second mold (2) to open and close.

3. The automobile rearview mirror injection mold according to claim 1, characterized in that: The inclined ejector (8) comprises an ejector cylinder (8.1) mounted on the second mold (2), a driving block (8.2) being mounted on the output end of the ejector cylinder (8.1), and an ejector block (8.3) being arranged on the driving block (8.2).

4. The automobile rearview mirror injection mold according to claim 1, characterized in that: The straight ejector (9) comprises a plurality of groups of straight ejector rods (9.1) slidably connected to the second mould (2), a plurality of groups of support rods are provided with straight ejector blocks (9.2), and a driving unit for driving the plurality of groups of straight ejector rods (9.1) to slide is provided on the outside of the second mould (2).

5. The automobile rearview mirror injection mold according to claim 4, characterized in that: The driving unit comprises a driving plate (6) slidably connected to the second mold (2), a plurality of groups of straight push rods (9.1) are mounted on the driving plate (6), and a servo cylinder for driving the driving plate (6) to slide is arranged at the bottom of the driving plate (6).

6. The automobile rearview mirror injection mold according to claim 1, characterized in that: A limiting member (11) is also provided between the first mold (1) and the second mold (2).

7. The automobile rearview mirror injection mold according to claim 6, characterized in that: The limiting member (11) comprises a plurality of groups of limiting cylinders fixedly connected to the first mould (1), and each of the limiting cylinders is slidably connected with a limiting rod fixedly connected to the second mould (2).

8. The automobile rearview mirror injection mold according to claim 1, characterized in that: The first mold (1) is provided with an injection port (3) which is connected to the molding seat (5).

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