Injection mold for automobile rearview mirror shield

Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold for an automobile rearview mirror shield, which comprises an injection mold for injection molding of the automobile rearview mirror shield, the automobile rearview mirror shield comprises a shield plate, and a tubular column is integrally formed and connected to the surface of the shield plate; the injection mold comprises a first mold base and a second mold base which have relative opening and closing displacement, a first mounting groove is formed in the top of the first mold base, first mold cores are symmetrically arranged on the inner wall of the first mounting groove, and pipe cavity forming assemblies are arranged on the surfaces of the first mold cores; a first external forming assembly and a second external forming assembly are symmetrically arranged on the surface of the first mold base. According to the injection mold for the automobile rearview mirror shield, the pipe cavity forming assembly, the first external forming assembly and the second external forming assembly are arranged, the pipe cavity forming assembly enables a tubular column inner cavity of the automobile rearview mirror shield to be formed at a time during injection molding, and machining is convenient.

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 cover. Background Technology

[0002] Plastic molds are tools used in the plastics processing industry in conjunction with plastic molding machines to give plastic products a complete shape and precise dimensions. Due to the wide variety of plastics and processing methods, as well as the varying complexity of plastic molding machines and plastic products, plastic molds also come in a variety of types and structures. Based on different molding methods, plastic processing molds can be classified into different types corresponding to different process requirements, mainly including injection molding molds, extrusion molding molds, vacuum forming molds, and high-density polystyrene molding molds.

[0003] The car rearview mirror cover includes a cover panel, and the surface of the cover panel is integrally formed with tubular columns. Traditional injection molds form the outer part of the tubular columns of the car rearview mirror cover, and the internal channels of the tubular columns are formed through post-processing, which is a complicated process. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an injection mold for a car rearview mirror cover, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an injection mold for a car rearview mirror cover, comprising: an injection mold for injection molding of a car rearview mirror cover;

[0006] The car rearview mirror cover includes a cover panel, and tubular columns are integrally formed on the surface of the cover panel;

[0007] The injection mold includes a first mold base and a second mold base with relative opening and closing displacement. The top of the first mold base is provided with a first mounting groove, and the inner wall of the first mounting groove is symmetrically provided with a first mold core. The surface of the first mold core is provided with a cavity forming component. The surface of the first mold base is symmetrically provided with a first external forming component and a second external forming component.

[0008] The bottom of the second mold base is provided with a second mounting groove, and the inner wall of the second mounting groove is symmetrically provided with a second mold core. The surface of the second mold core is provided with a molding groove corresponding to the position of the cavity molding component. The cavity molding component, the first external molding component, the second external molding component and the molding groove form an injection cavity for a car rearview mirror cover. An injection molding component is installed on the second mold base, and the injection cavity is connected to the injection molding component.

[0009] The cavity forming assembly includes a first forming block, which is disposed on a first mold core, and a second forming block and a third forming block are detachably mounted on the top of the first forming block.

[0010] Preferably, the first external forming component includes a tube forming block, a first guide groove is provided on the surface of the first mold base corresponding to the position of the tube forming block, the tube forming block is slidably connected to the inner wall of the first guide groove, and a first limiting strip is provided on both sides of the tube forming block, and the first limiting strip is installed inside the first guide groove.

[0011] Preferably, the surface of the tubular forming block is provided with a first inclined locking groove, and the bottom of the second mold base is provided with a first inclined locking rod, which is inserted into the first inclined locking groove.

[0012] Preferably, the second external forming component includes a curved forming block, a second guide groove is provided on the surface of the first mold base corresponding to the position of the curved forming block, the curved forming block is slidably connected to the inner wall of the second guide groove, and a second limiting strip is provided on both sides of the tube forming block, and the second limiting strip is installed inside the second guide groove.

[0013] Preferably, the surface of the curved forming block is provided with a second inclined locking groove, and a second inclined locking rod is installed at the bottom of the second mold base, the second inclined locking rod being inserted into the interior of the second inclined locking groove.

[0014] Preferably, the injection molding assembly includes an injection ring and a buffer chamber. The buffer chamber is disposed inside the second mold base. The injection ring is connected to the inlet end of the buffer chamber. A guide pipe is symmetrically connected to the bottom of the buffer chamber and communicates with the injection cavity.

[0015] Preferably, the bottom of the first mold base is provided with a base plate, the top of the base plate is provided with a lifting plate, the top of the lifting plate is equipped with an ejector pin, and the tip of the ejector pin extends to the surface of the cavity forming assembly.

[0016] Preferably, positioning tubes are installed at the four corners of the bottom of the first mold base, and positioning rods are provided at the bottom of the second mold base, with the positioning rods inserted into the inner wall of the positioning tubes.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The injection mold for the car rearview mirror cover, by setting up a cavity forming component, a first external forming component, and a second external forming component, allows the cavity forming component to form the tubular column inner cavity of the car rearview mirror cover in one step during injection molding, which facilitates processing. Attached Figure Description

[0019] Figure 1 A schematic diagram of a car rearview mirror cover structure;

[0020] Figure 2 This is an exploded view of the injection mold for the automotive rearview mirror cover of this utility model.

[0021] Figure 3 This is a schematic diagram of the exploded structure of the first mold base of this utility model;

[0022] Figure 4 This is an exploded structural diagram of the cavity forming component of this utility model.

[0023] Figure 5 This is a schematic diagram of the second mold base structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the exploded structure of the first mold base of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure at the location of the buffer chamber of this utility model.

[0026] In the diagram: 101, protective cover plate; 102, tubular column; 2, first mold base; 3, second mold base; 4, first mounting groove; 5, first mold core; 6, tube forming assembly; 61, first forming block; 62, second forming block; 63, third forming block; 7, first external forming assembly; 71, tube forming block; 72, first limiting strip; 8, second external forming assembly; 81, curved forming block; 82, second limiting strip; 9, second mounting groove; 10, second mold core; 11, forming groove; 12, injection assembly; 121, injection ring; 122, buffer chamber; 123, guide tube; 13, first inclined locking groove; 14, first inclined locking rod; 15, second inclined locking groove; 16, second inclined locking rod; 17, base plate; 18, lifting plate; 19, ejector pin; 20, positioning tube; 21, positioning rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-7 An injection mold for a car rearview mirror cover includes: an injection mold for injection molding a car rearview mirror cover.

[0029] The car rearview mirror cover includes a cover plate 101, and a tubular column 102 is integrally formed and connected to the surface of the cover plate 101.

[0030] The injection mold includes a first mold base 2 and a second mold base 3 with relative opening and closing displacement. The top of the first mold base 2 is provided with a first mounting groove 4, and the inner wall of the first mounting groove 4 is symmetrically provided with a first mold core 5. The surface of the first mold core 5 is provided with a cavity forming component 6, and the surface of the first mold base 2 is symmetrically provided with a first external forming component 7 and a second external forming component 8.

[0031] The bottom of the second mold base 3 is provided with a second mounting groove 9, and the inner wall of the second mounting groove 9 is symmetrically provided with a second mold core 10. The surface of the second mold core 10 is provided with a molding groove 11 corresponding to the position of the cavity molding component 6. The cavity molding component 6, the first external molding component 7, the second external molding component 8 and the molding groove 11 form an injection cavity for the car rearview mirror cover. An injection component 12 is installed on the second mold base 3, and the injection cavity is connected to the injection component 12.

[0032] The cavity forming assembly 6 includes a first forming block 61, which is disposed on the first mold core 5. A second forming block 62 and a third forming block 63 are detachably mounted on the top of the first forming block 61.

[0033] The first external molding component 7 includes a tube molding block 71. A first guide groove is provided on the surface of the first mold base 2 corresponding to the position of the tube molding block 71. The tube molding block 71 is slidably connected to the inner wall of the first guide groove. A first limiting strip 72 is provided on both sides of the tube molding block 71. The first limiting strip 72 is installed inside the first guide groove. A first inclined locking groove 13 is provided on the surface of the tube molding block 71. A first inclined locking rod 14 is installed at the bottom of the second mold base 3. The first inclined locking rod 14 is inserted into the inside of the first inclined locking groove 13.

[0034] The second external forming component 8 includes a curved forming block 81. A second guide groove is provided on the surface of the first mold base 2 corresponding to the position of the curved forming block 81. The curved forming block 81 is slidably connected to the inner wall of the second guide groove. A second limiting strip 82 is provided on both sides of the tube forming block 71. The second limiting strip 82 is installed inside the second guide groove. A second inclined locking groove 15 is provided on the surface of the curved forming block 81. A second inclined locking rod 16 is installed at the bottom of the second mold base 3. The second inclined locking rod 16 is inserted into the inside of the second inclined locking groove 15.

[0035] like Figure 6-7As shown, the injection molding assembly 12 includes an injection ring 121 and a buffer chamber 122. The buffer chamber 122 is located inside the second mold base 3. The injection ring 121 is connected to the inlet end of the buffer chamber 122. A guide pipe 123 is symmetrically connected to the bottom of the buffer chamber 122 and communicates with the injection cavity. A base plate 17 is provided at the bottom of the first mold base 2. A lifting plate 18 is provided at the top of the base plate 17. An ejector pin 19 is installed on the top of the lifting plate 18. The tip of the ejector pin 19 extends to the surface of the cavity molding assembly 6. A lifting device is externally connected to the lifting plate 18. After injection molding and shaping, the first mold base 2 and the second mold base 3 are opened. The lifting device pushes the lifting plate 18 to move, and the lifting plate 18 pushes the ejector pin 19 to move, pushing out the car rearview mirror cover. Positioning tubes 20 are installed at the four corners of the bottom of the first mold base 2. Positioning rods 21 are provided at the bottom of the second mold base 3. The positioning rods 21 are inserted into the inner wall of the positioning tubes 20. When the first mold base 2 and the second mold base 3 are closed, the positioning rods 21 are inserted into the positioning tubes 20 to limit and guide the first mold base 2 and the second mold base 3, so that the closed position of the first mold base 2 and the second mold base 3 is accurate.

[0036] The first mold base 2 and the second mold base 3 are closed. The positioning rod 21 is inserted into the positioning tube 20 to limit and guide the first mold base 2 and the second mold base 3, ensuring that the first mold base 2 and the second mold base 3 are accurately closed. The first mold base 2 and the second mold base 3 respectively drive the first mold core 5 and the second mold core 10 to close. The cavity forming assembly 6, the first external forming assembly 7, the second external forming assembly 8 and the forming groove 11 form an injection cavity for the rearview mirror cover of the car. The injection ring 121 is connected to the injection molding equipment. The raw material liquid enters the buffer chamber 122 and then enters the guide tube 123 through the buffer chamber 122. The guide tube 123 is connected to the injection cavity. The raw material liquid enters the injection cavity, and the first forming block 61 and the second forming block 62... The third molding block 63 forms the inner cavity of the tubular column 102 of the car rearview mirror cover in one step. After the injection molding is completed and the car rearview mirror cover cools and solidifies, the first mold base 2 and the second mold base 3 open. The second mold base 3 drives the first inclined locking rod 14 and the second inclined locking rod 16 to move. The first inclined locking rod 14 pushes the tubular molding block 71 away from the surface of the car rearview mirror cover, and the second inclined locking rod 16 pushes the curved molding block 81 away from the surface of the car rearview mirror cover, reducing the contact area between the inner wall of the molding groove 11 and the car rearview mirror cover, making it easier for the car rearview mirror cover to separate from the inner wall of the molding groove 11. After the mold is opened, the lifting device pushes the lifting plate 18 to move, and the lifting plate 18 pushes the ejector pin 19 to move, ejecting the car rearview mirror cover.

[0037] 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 car rearview mirror cover, characterized in that, include: Injection molds used for injection molding of automotive rearview mirror covers; The car rearview mirror cover includes a cover plate (101), and a tubular column (102) is integrally formed on the surface of the cover plate (101). The injection mold includes a first mold base (2) and a second mold base (3) having relative opening and closing displacement. The top of the first mold base (2) is provided with a first mounting groove (4), and the inner wall of the first mounting groove (4) is symmetrically provided with a first mold core (5). The surface of the first mold core (5) is provided with a cavity forming component (6), and the surface of the first mold base (2) is symmetrically provided with a first external forming component (7) and a second external forming component (8). The bottom of the second mold base (3) is provided with a second mounting groove (9), and the inner wall of the second mounting groove (9) is symmetrically provided with a second mold core (10). The surface of the second mold core (10) is provided with a molding groove (11) corresponding to the position of the cavity molding component (6). The cavity molding component (6), the first external molding component (7), the second external molding component (8) and the molding groove (11) form an injection cavity for the car rearview mirror cover. The second mold base (3) is equipped with an injection molding component (12), and the injection cavity is connected to the injection molding component (12). The cavity forming assembly (6) includes a first forming block (61), which is disposed on a first mold core (5). A second forming block (62) and a third forming block (63) are detachably mounted on the top of the first forming block (61).

2. The injection mold for a car rearview mirror cover according to claim 1, characterized in that, The first external molding component (7) includes a tube molding block (71). A first guide groove is provided on the surface of the first mold base (2) corresponding to the position of the tube molding block (71). The tube molding block (71) is slidably connected to the inner wall of the first guide groove. A first limiting strip (72) is provided on both sides of the tube molding block (71). The first limiting strip (72) is installed inside the first guide groove.

3. The injection mold for a car rearview mirror cover according to claim 2, characterized in that, The surface of the tubular forming block (71) is provided with a first inclined locking groove (13), and the bottom of the second mold base (3) is provided with a first inclined locking rod (14), which is inserted into the inside of the first inclined locking groove (13).

4. The injection mold for a car rearview mirror cover according to claim 1, characterized in that, The second external forming component (8) includes a curved forming block (81). The surface of the first mold base (2) is provided with a second guide groove corresponding to the position of the curved forming block (81). The curved forming block (81) is slidably connected to the inner wall of the second guide groove. The tube forming block (71) is provided with a second limiting strip (82) on both sides. The second limiting strip (82) is installed inside the second guide groove.

5. The injection mold for a car rearview mirror cover according to claim 4, characterized in that, The surface of the curved forming block (81) is provided with a second oblique locking groove (15), and a second oblique locking rod (16) is installed at the bottom of the second mold base (3). The second oblique locking rod (16) is inserted into the interior of the second oblique locking groove (15).

6. The injection mold for a car rearview mirror cover according to claim 1, characterized in that, The injection molding assembly (12) includes an injection ring (121) and a buffer chamber (122). The buffer chamber (122) is located inside the second mold base (3). The injection ring (121) is connected to the inlet end of the buffer chamber (122). A guide pipe (123) is symmetrically connected to the bottom of the buffer chamber (122). The guide pipe (123) is connected to the injection cavity.

7. The injection mold for a car rearview mirror cover according to claim 1, characterized in that, The bottom of the first mold base (2) is provided with a base plate (17), the top of the base plate (17) is provided with a lifting plate (18), the top of the lifting plate (18) is provided with an ejector pin (19), and the top of the ejector pin (19) extends to the surface of the cavity forming assembly (6).

8. The injection mold for a car rearview mirror cover according to claim 1, characterized in that, The first mold base (2) has positioning tubes (20) installed at the four corners of its bottom, and the second mold base (3) has a positioning rod (21) at its bottom, which is inserted into the inner wall of the positioning tube (20).

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