Injection mold for automobile rearview mirror shield

Abstract

The utility model relates to an injection mold for an automobile rearview mirror shield. Comprising a parting block and a mold closing block which are arranged in a front-back mode and matched with each other, two forming assemblies which are arranged between the parting block and the mold closing block and are symmetrically distributed up and down, a feeding plate fixed to the front side of the parting block, a seat plate fixed to the rear side of the mold closing block, and a material ejecting device arranged between the seat plate and the mold closing block. The forming assembly comprises a mold pressing block embedded in the rear side of the parting block and a mold loading block embedded in the front side of the mold closing block and matched with the mold pressing block. The forming assembly further comprises a first side forming assembly and a second side forming assembly which are arranged on the left side and the right side of the mold pressing block correspondingly. The forming assembly further comprises a third side forming assembly arranged on the outer side of the die pressing block. According to the utility model, the manufacturing difficulty of the die is reduced, the manufacturing process of the die is simplified, the maintenance of the die is greatly facilitated, and the manufacturing cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to an injection mold for a car rearview mirror cover. Background Technology

[0002] A rearview mirror cover is a protective device installed on a car's rearview mirror. It is usually made of plastic and its main function is to prevent the rearview mirror from being damaged by friction during driving. It also serves a certain decorative purpose, making the vehicle look more beautiful. Since rearview mirror covers are mostly made of plastic, their production process relies on matching injection molds and injection molding machines.

[0003] Because the internal structure of the rearview mirror cover is quite complex, in order to mold its complex internal structure in one go, the existing injection mold must be equipped with multiple cylinders on the fixed mold core to smoothly form and demold from the end face of the moving mold core. However, the mold is difficult to manufacture, which leads to a complicated manufacturing process. Once maintenance is required, the fixed mold part must be completely disassembled, which makes maintenance inconvenient and results in high manufacturing costs. Further improvements are needed. Utility Model Content

[0004] In view of the current state of the prior art, the technical problem to be solved by this utility model is to provide an injection mold for a car rearview mirror cover that reduces the difficulty of mold making, simplifies the mold making process, greatly facilitates mold maintenance, and effectively reduces manufacturing costs.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: an injection mold for a car rearview mirror cover, comprising a parting block and a assembly module respectively arranged front and rear and cooperating with each other, two molding components arranged between the parting block and the assembly module and symmetrically distributed vertically, a feed plate fixed on the front side of the parting block, a seat plate fixed on the rear side of the assembly module, and an ejector device arranged between the seat plate and the assembly module, characterized in that:

[0006] The molding assembly includes a pressing module embedded inside the rear side of the parting block and a carrier module embedded in the front side of the assembly module and cooperating with the pressing module. The pressing module has a main body cavity on its end face. Correspondingly, the carrier module has a molding core that cooperates with the main body cavity on its end face facing the pressing module. The inner wall of the main body cavity has a molding concave surface. Correspondingly, the outer wall of the molding core has a molding convex surface that cooperates with the molding concave surface.

[0007] The molding assembly further includes a first side molding assembly and a second side molding assembly respectively disposed on the left and right sides of the pressing module. The first side molding assembly includes a first side slider movably connected to the front side of the pressing module to have a left and right translation function, and a first drive column obliquely inserted into the first side slider. The front end of the first drive column is fixed to the parting block. The second side molding assembly includes a drive block fixed to the rear side of the parting block, and a second side slider movably inserted into the right side of the pressing module to have a left and right translation function. The outer end of the second side slider is movably connected to the drive block to have a forward and backward tilting function.

[0008] The molding assembly also includes a third side molding assembly located outside the pressing module. The third side molding assembly includes a third side slider movably connected to the front side of the forming module to have left and right translation function and located between the first side molding assembly and the second side molding assembly, and a second drive column obliquely inserted into the third side slider. The front end of the second drive column is fixed on the parting block.

[0009] Preferably, a first notch is provided on the left edge of the opening of the main cavity, a first stop is formed on the side of the first side slider facing the main cavity, a first molding block is formed on the right side of the first stop towards the main cavity to cooperate with the first notch, and a first auxiliary molding surface is formed on the end face of the first molding block.

[0010] Preferably, a recessed cavity is formed on the bottom surface of the main cavity, and a guide channel is formed between the right inner wall of the recessed cavity and the right outer wall of the pressure module, and the second side slider is movably inserted into the guide channel.

[0011] Preferably, the inner end of the second side slider is formed with a second molding block facing the interior of the main body cavity. The end of the second molding block is provided with a first molding groove and a second molding groove facing one side edge of the cavity. Correspondingly, a seat block is formed on the bottom surface of the cavity facing the second molding block. The end of the seat block is provided with a first protrusion and a second protrusion that respectively cooperate with the first molding groove and the second molding groove.

[0012] Preferably, a second notch is provided on the outer edge of the opening of the main cavity, a second stop is formed on the side of the third side slider facing the main cavity, a third forming block is formed on the right side of the second stop in the direction of the main cavity, which cooperates with the second notch, a second auxiliary forming surface is formed on the outer wall of the third forming block facing the second forming block, and a corner groove is provided at the end of the third forming block.

[0013] Preferably, an auxiliary block is fixed on the side of the second side slider and the second forming block opposite to the main body cavity. A heightening block is formed outward on the outer wall of the auxiliary block facing the carrier module. A third protrusion is formed outward on the end face of the heightening block.

[0014] Preferably, a side block is formed on the inner wall of the outer side of the cavity facing the interior of the cavity, and an arc surface that cooperates with the outer wall of the second molding block is formed on the outer wall of the side block facing the second molding block.

[0015] Compared with the prior art, the advantages of this utility model are as follows: This utility model does not require any cylinders. As long as the first side slider in the first side molding component, the second side slider in the second side molding component, and the third side slider in the third side molding component are inserted into the main body cavity from the side of the pressing module, the complex internal structure of the rearview mirror cover can be formed in one go. This reduces the difficulty of mold making and simplifies the mold making process. At the same time, it greatly facilitates mold maintenance and effectively reduces the manufacturing cost. Attached Figure Description

[0016] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent when taken in conjunction with the accompanying drawings and the following detailed description; throughout the drawings, the same or similar reference numerals denote the same or similar elements; it should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale; in the drawings:

[0017] Figure 1 This is an exploded top view of the right front side of this utility model;

[0018] Figure 2 This is a bottom view of the left rear side of the parting block of this utility model;

[0019] Figure 3 This is a bottom view of the left rear side of the pressure module of this utility model;

[0020] Figure 4 This is a top view of the right front side of the first side molding component of this utility model;

[0021] Figure 5 This is a top view of the left front side of the second side slider of this utility model;

[0022] Figure 6 This is a bottom view of the auxiliary block of this utility model from the left rear side;

[0023] Figure 7 This is a top view of the left front side of the third side molding component of this utility model. Detailed Implementation

[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0026] like Figures 1-7 As shown, an injection mold for a car rearview mirror cover includes a parting block 1 and a assembly module 2 that are respectively arranged in front and behind and cooperate with each other, two molding components that are arranged between the parting block 1 and the assembly module 2 and symmetrically distributed vertically, a feed plate 5 fixed to the front side of the parting block 1, a seat plate 6 fixed to the rear side of the assembly module 2, and an ejector device 7 arranged between the seat plate 6 and the assembly module 2.

[0027] The molding assembly includes a pressing module 3 embedded in the rear side of the parting block 1 and a carrier module 4 embedded in the front side of the assembly module 2 and cooperating with the pressing module 3. A main body cavity 31 is formed on the end face of the pressing module 3. Correspondingly, a molding core 41 is formed on the end face of the carrier module 4 in the direction of the pressing module 3, which cooperates with the main body cavity 31. A molding concave surface 39 is formed on the inner wall of the main body cavity 31. Correspondingly, a molding convex surface 42 is formed on the outer wall of the inner side of the molding core 41, which cooperates with the molding concave surface 39.

[0028] The molding assembly also includes a first side molding assembly 8 and a second side molding assembly 9 respectively disposed on the left and right sides of the pressing module 3. The first side molding assembly 8 includes a first side slider 81 movably connected to the front side of the pressing module 2 to have a left and right translation function, and a first drive column 82 obliquely inserted into the first side slider 81. The front end of the first drive column 82 is fixed on the parting block 1. The second side molding assembly 9 includes a drive block 91 fixed to the rear side of the parting block 1, and a second side slider 92 movably inserted into the right side of the pressing module 3 to have a left and right translation function. The outer end of the second side slider 92 is movably connected to the drive block 91 to have a forward and backward tilting function.

[0029] The molding assembly also includes a third side molding assembly 10 located outside the pressing module 3. The third side molding assembly 10 includes a third side slider 101 movably connected to the front side of the forming module 2 to have left and right translation function and located between the first side molding assembly 8 and the second side molding assembly 9, and a second drive column 102 obliquely inserted into the third side slider 101. The front end of the second drive column 102 is fixed on the parting block 1.

[0030] A first notch 32 is provided on the left edge of the opening of the main cavity 31. A first stop 811 is formed on the side of the first side slider 81 facing the main cavity 31. A first molding block 812 that cooperates with the first notch 32 is formed on the right side of the first stop 811 facing the main cavity 31. A first auxiliary molding surface 813 is formed on the end face of the first molding block 812.

[0031] A recessed cavity 35 is provided on the bottom surface of the main cavity 31. A guide channel 34 is provided between the right inner wall of the recessed cavity 35 and the right outer wall of the pressure module 3. The second side slider 92 is movably inserted into the guide channel 34.

[0032] The inner end of the second side slider 92 forms a second molding block 921 facing the interior of the main body cavity 31. The end of the second molding block 921 is provided with a first molding groove 922 and a second molding groove 923 facing one side edge of the recessed cavity 35. Correspondingly, a seat block 36 is formed on the bottom surface of the recessed cavity 35 facing the direction of the second molding block 921. The end of the seat block 36 is provided with a first protrusion 37 and a second protrusion 310 that respectively cooperate with the first molding groove 922 and the second molding groove 923.

[0033] A second notch 33 is provided on the outer edge of the opening of the main cavity 31. A second stop 1011 is formed on the side of the third side slider 101 facing the main cavity 31. A third forming block 1012 is formed on the right side of the second stop 1011 facing the main cavity 31, which cooperates with the second notch 33. A second auxiliary forming surface 1013 is formed on the outer wall of the third forming block 1012 facing the second forming block 921. A corner groove 1014 is provided at the end of the third forming block 1012.

[0034] An auxiliary block 93 is fixed on the side of the second side slider 92 and the second forming block 921 opposite to the main body cavity 31. An extension block 931 is formed outward on the outer wall of the auxiliary block 93 facing the carrier module 4. A third protrusion 932 is formed outward on the end face of the extension block 931.

[0035] A side block 38 is formed on the inner wall of the outer side of the cavity 35, facing the interior of the cavity 35. An arc surface 311 that cooperates with the outer wall of the second molding block 921 is formed on the outer side of the side block 38 facing the second molding block 921.

[0036] Working principle:

[0037] The feed plate 5 and the seat plate 6 are respectively installed on the action mechanism and the machine body of the injection molding machine. The action mechanism drives the feed plate 5 to move backward, which in turn drives the parting block 1 to move backward and towards the assembly module 2 until the two are assembled together (existing technology).

[0038] During the movement of the parting block 1, it will drive the pressure module 3 in the molding assembly to move towards the load module 4 until the two are joined together. At this time, the molding core 41 is inserted into the main body cavity 31, and the molding convex surface 42 and the molding concave surface 39 are spaced a certain distance apart. At the same time, during the movement of the parting block 1, it will also drive the first driving column 82 in the first side molding assembly 8, the driving block 91 in the second side molding assembly 9, and the second driving column 102 in the third side molding assembly 10 to move synchronously, thereby forcing the first side slider 81, the second side slider 92, and the third side slider 101 to move towards the main body cavity 31, so that the first molding block 812, the second molding block 921, and the third molding block 1012 are respectively inserted into the first notch 32, the first notch 32, and the recess 35. In addition, the first protrusion 37 and the second protrusion 310 are respectively inserted into the first molding groove 922 and the second molding groove 923.

[0039] Subsequently, the molten material enters the parting block 1 through the gate in the feed plate 5, and then enters the area between the main body cavity 31 on the pressure module 3 and the molding core 41 on the carrier module 4 through the sprue in the parting block 1. After cooling, the rearview mirror cover (existing technology) is formed.

[0040] Then, the feeding plate 5 is driven forward by the action mechanism, and then each pressing module 3 is driven forward and away from the corresponding carrier module 4 by the parting block 1. Then, the formed rearview mirror cover is pushed forward by the ejector device 7 (existing technology).

[0041] This invention eliminates the need for any cylinders. By simply inserting the first side slider 81 of the first side molding component 8, the second side slider 92 of the second side molding component 9, and the third side slider 101 of the third side molding component 10 from the side of the pressing module 3 into the main body cavity 31, the complex internal structure of the rearview mirror cover can be formed in one go. This reduces the difficulty of mold making and simplifies the mold making process. It also greatly facilitates mold maintenance and effectively reduces manufacturing costs.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An injection mold for an automotive rearview mirror cover, comprising a parting block and a assembly module respectively arranged front to back and cooperating with each other, two molding components disposed between the parting block and the assembly module and symmetrically distributed vertically, a feed plate fixed to the front side of the parting block, a base plate fixed to the rear side of the assembly module, and an ejector device disposed between the base plate and the assembly module, characterized in that: The molding assembly includes a pressing module embedded inside the rear side of the parting block and a carrier module embedded in the front side of the assembly module and cooperating with the pressing module. The pressing module has a main body cavity on its end face. Correspondingly, the carrier module has a molding core that cooperates with the main body cavity on its end face facing the pressing module. The inner wall of the main body cavity has a molding concave surface. Correspondingly, the outer wall of the molding core has a molding convex surface that cooperates with the molding concave surface. The molding assembly further includes a first side molding assembly and a second side molding assembly respectively disposed on the left and right sides of the pressing module. The first side molding assembly includes a first side slider movably connected to the front side of the pressing module to have a left and right translation function, and a first drive column obliquely inserted into the first side slider. The front end of the first drive column is fixed to the parting block. The second side molding assembly includes a drive block fixed to the rear side of the parting block, and a second side slider movably inserted into the right side of the pressing module to have a left and right translation function. The outer end of the second side slider is movably connected to the drive block to have a forward and backward tilting function. The molding assembly also includes a third side molding assembly located outside the pressing module. The third side molding assembly includes a third side slider movably connected to the front side of the forming module to have left and right translation function and located between the first side molding assembly and the second side molding assembly, and a second drive column obliquely inserted into the third side slider. The front end of the second drive column is fixed on the parting block.

2. The injection mold for a car rearview mirror cover according to claim 1, characterized in that, A first notch is provided on the left edge of the opening of the main cavity. A first stop is formed on the side of the first side slider facing the main cavity. A first forming block is formed on the right side of the first stop in the direction of the main cavity, which cooperates with the first notch. A first auxiliary forming surface is formed on the end face of the first forming block.

3. The injection mold for a car rearview mirror cover according to claim 1, characterized in that, A recessed cavity is formed on the bottom surface of the main cavity, and a guide channel is formed between the right inner wall of the recessed cavity and the right outer wall of the pressure module. The second side slider is movably inserted into the guide channel.

4. The injection mold for a car rearview mirror cover according to claim 3, characterized in that, The inner end of the second side slider is formed with a second molding block facing the interior of the main body cavity. The end of the second molding block is provided with a first molding groove and a second molding groove facing one side edge of the cavity. Correspondingly, a seat block is formed on the bottom surface of the cavity facing the second molding block. The end of the seat block is provided with a first protrusion and a second protrusion that respectively cooperate with the first molding groove and the second molding groove.

5. The injection mold for a car rearview mirror cover according to claim 1, characterized in that, A second notch is provided on the outer edge of the opening of the main cavity. A second stop is formed on the side of the third side slider facing the main cavity. A third forming block is formed on the right side of the second stop in the direction of the main cavity, which cooperates with the second notch. A second auxiliary forming surface is formed on the outer wall of the third forming block facing the second forming block. A corner groove is provided at the end of the third forming block.

6. The injection mold for a car rearview mirror cover according to claim 4, characterized in that, An auxiliary block is fixed on the side of the second side slider and the second forming block opposite to the main body cavity. An extension block is formed outward on the outer wall of the auxiliary block facing the carrier module. A third protrusion is formed outward on the end face of the extension block.

7. The injection mold for a car rearview mirror cover according to claim 4, characterized in that, A side block is formed on the inner wall of the outer side of the cavity, facing the interior of the cavity. An arc surface that cooperates with the outer wall of the second molding block is formed on the outer wall of the side block facing the second molding block.

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