Injection molding device for automobile rearview mirror production

Abstract

The utility model discloses an injection molding device for producing an automobile rearview mirror, relates to the technical field of injection molding devices, and aims to solve the problems that in the injection molding production of the automobile rearview mirror in the prior art, natural cooling and shaping are needed, the consumed time is long, and the production efficiency of the automobile rearview mirror is influenced. The device comprises a device platen, injection molds are symmetrically arranged on the two sides of the upper portion of the device platen correspondingly, each injection mold comprises a lower mold, an upper mold and a base, heat dissipation boxes are symmetrically and fixedly installed on the two sides of the lower portion of the device platen correspondingly, the upper ends of the heat dissipation boxes extend into the upper end face of the device platen, and a mold cavity is formed in the upper portion of the interior of the lower mold; a heat dissipation cavity is formed in the lower mold along the outer side of the mold cavity, a first flow channel and a second flow channel are symmetrically formed in the lower mold along the two sides of the heat dissipation cavity respectively and communicate with the heat dissipation cavity, an air inlet cavity and an air outlet cavity are formed in the two sides of the interior of the heat dissipation box respectively, and the air inlet cavity communicates with the first flow channel.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding devices, and specifically relates to an injection molding device for the production of automotive rearview mirrors. Background Technique

[0002] An automotive rearview mirror is a tool for a driver to directly obtain external information such as the rear, side, and below of the vehicle while sitting in the driver's cab seat. For the convenience of the driver's operation, to prevent the occurrence of traffic safety accidents, and to ensure personal safety, injection molding is generally used in the production and processing of automotive rearview mirrors;

[0003] For example, the authorized patent with the publication number CN213321309U (an injection molding device for the production of automotive rearview mirrors): includes a frame device for support, a downward pressing device for injection molding is installed on the top of the frame device, and 2 mold devices for the molding of automotive rearview mirrors are symmetrically arranged on the upper surface of the frame device;

[0004] Although the above-mentioned prior art facilitates alternate injection molding operations through the symmetrical arrangement of the mold devices, accelerating the production speed of automotive rearview mirrors, the mold does not have an auxiliary heat dissipation mechanism. Therefore, in the injection molding production of automotive rearview mirrors, natural cooling and shaping are required, which consumes a long time and affects the production efficiency of automotive rearview mirrors; Therefore, there is an urgent need in the market to develop an injection molding device for the production of automotive rearview mirrors to help people solve existing problems. Summary of the Invention

[0005] The purpose of the utility model is to provide an injection molding device for the production of automotive rearview mirrors, so as to solve the problem of natural cooling and shaping required in the injection molding production of automotive rearview mirrors, which consumes a long time and affects the production efficiency of automotive rearview mirrors mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an injection molding device for the production of automotive rearview mirrors, including a device table board, injection molds are symmetrically arranged on both sides above the device table board, the injection mold includes a lower mold, an upper mold, and a base, heat dissipation boxes are symmetrically and fixedly installed on both sides below the device table board, the upper ends of the heat dissipation boxes extend into the upper end surface of the device table board, a mold cavity is arranged above the inside of the lower mold, a heat dissipation cavity is arranged along the outside of the mold cavity inside the lower mold, a first flow channel and a second flow channel are symmetrically arranged along both sides of the heat dissipation cavity inside the lower mold, both the first flow channel and the second flow channel are communicated with the heat dissipation cavity, an air inlet cavity and an air outlet cavity are respectively arranged on both sides inside the heat dissipation box, the air inlet cavity is communicated with the first flow channel, the air outlet cavity is communicated with the second flow channel, a blower is fixedly installed inside the air inlet cavity of the heat dissipation box, and a collecting trough body is arranged above the blower.

[0007] Preferably, a filter box is fixedly installed on one side of the heat dissipation box. The heat dissipation box is communicated with the filter box. A filter plate is fixedly installed inside the filter box. One side of the filter box is provided with an opening. A baffle is arranged at the opening of the filter box. Limiting plates are symmetrically arranged at the front and rear ends on both sides of the baffle. The limiting plates are fixedly connected with the filter box.

[0008] Preferably, fixed side plates are symmetrically and fixedly installed on both sides above the device table board. An electric cylinder II is fixedly installed on one side of the fixed side plate. The push rod end of the electric cylinder II penetrates through the fixed side plate and is fixedly connected with the lower mold.

[0009] Preferably, a track plate is fixedly installed on the upper end surface of the device table board, and there are two track plates. The track plates slidably penetrate through the base. A support plate is fixedly installed below the device table board.

[0010] Preferably, a back plate is fixedly installed at the rear end above the upper mold. A hydraulic cylinder is arranged at the rear end of the upper mold. The piston rod end of the hydraulic cylinder is fixedly connected with the back plate. The other end of the hydraulic cylinder is fixedly connected with the base.

[0011] Preferably, side blocks are symmetrically and fixedly installed on both sides of the upper mold. Expansion rods are symmetrically arranged on both sides of the lower mold. The upper end of the expansion rod is fixedly connected with the side block. The lower end of the expansion rod is fixedly connected with the base.

[0012] Preferably, an installation folding plate is fixedly installed at the rear end of the device table board. An electric cylinder I is fixedly installed above the installation folding plate. A lifting plate is arranged at the front end inside the installation folding plate. The push rod end of the electric cylinder I penetrates through the installation folding plate and is fixedly connected with the lifting plate. An injection head is fixedly installed above the lifting plate and penetrates through the lifting plate. A guiding column is arranged at the front end of the electric cylinder I. The guiding column penetrates through the installation folding plate and is fixedly connected with the lifting plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By arranging a heat dissipation cavity and a flow channel communicated therewith inside the lower mold, and cooperating with the heat dissipation box and the built-in fan below the device, the utility model realizes forced air cooling heat dissipation, effectively accelerates the heat dissipation inside the mold, and thus greatly shortens the cooling and shaping time of the automotive rearview mirror injection molding, not only improving the production efficiency, but also being beneficial to the stability of product quality.

[0015] By installing a filter box with a filter plate on one side of the heat dissipation box, and arranging an opening on one side of the filter box, the utility model can filter out impurities and dust in the air through the action of the filter plate, increasing the heat dissipation effect and the cleanliness inside the mold, and prolonging the service life of the mold.

[0016] In this utility model, two fixed side plates are symmetrically installed on both sides above the device table board, and the push rod end of the electric cylinder II on one side of the fixed side plate is fixedly connected to the lower mold. By the telescopic movement of the push rod end of the electric cylinder II, the movement of the lower mold is realized, which facilitates the alternating use of the two injection molds during the injection production of automotive rearview mirrors and increases the practicability. Description of the Drawings

[0017] Figure 1 It is a front view structural schematic diagram of an injection device for producing automotive rearview mirrors according to this utility model;

[0018] Figure 2 It is a rear view structural schematic diagram of an injection device for producing automotive rearview mirrors according to this utility model;

[0019] Figure 3 It is a sectional view of the lower mold and the heat dissipation box of this utility model;

[0020] Figure 4 It is an enlarged schematic diagram of part A of this utility model.

[0021] In the figure: 1, device table board; 2, support plate; 3, lower mold; 301, mold cavity; 302, heat dissipation cavity; 303, runner I; 304, runner II; 4, upper mold; 5, base; 6, track plate; 7, installation folding plate; 8, electric cylinder I; 9, lifting plate; 10, injection head; 11, guiding column; 12, fixed side plate; 13, electric cylinder II; 14, heat dissipation box; 1401, air inlet cavity; 1402, air outlet cavity; 15, back plate; 16, hydraulic cylinder; 17, side block; 18, telescopic rod; 19, fan; 20, collecting trough body; 21, filter box; 22, filter plate; 23, baffle; 24, limiting plate. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of this utility model will be clearly and completely described in conjunction with the drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all the embodiments.

[0023] Please refer to Figures 1-4, an embodiment provided by the present utility model: an injection molding device for automobile rearview mirror production, including a device table board 1, injection molds are symmetrically arranged on both sides above the device table board 1. The injection mold includes a lower mold 3, an upper mold 4 and a base 5. An injection port is arranged above the upper mold 4. Radiator boxes 14 are symmetrically and fixedly installed on both sides below the device table board 1. The upper ends of the radiator boxes 14 extend into the upper end surface of the device table board 1. Above the inside of the lower mold 3, a mold cavity 301 is arranged. Along the outside of the mold cavity 301 inside the lower mold 3, a heat dissipation cavity 302 is arranged. Along both sides of the heat dissipation cavity 302 inside the lower mold 3, a first flow channel 303 and a second flow channel 304 are symmetrically arranged respectively. Both the first flow channel 303 and the second flow channel 304 are communicated with the heat dissipation cavity 302. On both sides inside the radiator box 14, an air inlet cavity 1401 and an air outlet cavity 1402 are arranged respectively. The air inlet cavity 1401 is communicated with the first flow channel 303, and the air outlet cavity 1402 is communicated with the second flow channel 304. A blower 19 is fixedly installed inside the air inlet cavity 1401 of the radiator box 14. Above the blower 19, a collecting trough 20 is arranged. The collecting trough 20 is communicated with the first flow channel 303.

[0024] During use, in the process of automobile rearview mirror injection molding production, by arranging a heat dissipation cavity 302 and the flow channels communicated therewith inside the lower mold 3, and cooperating with the radiator box 14 and the built-in blower 19 below the device, forced air cooling and heat dissipation are realized, effectively accelerating the heat dissipation inside the mold and improving the production efficiency.

[0025] Furthermore, a filter box 21 is fixedly installed on one side of the radiator box 14. The radiator box 14 is communicated with the filter box 21. A filter plate 22 is fixedly installed inside the filter box 21. One side of the filter box 21 is open. A baffle 23 is arranged at the opening of the filter box 21. On the front and rear ends of both sides of the baffle 23, limiting plates 24 are symmetrically arranged respectively. The limiting plates 24 are fixedly connected with the filter box 21. The arrangement of the filter box 21 and the filter plate 22 can filter out impurities and dust in the air, increasing the heat dissipation effect and the cleanliness inside the mold, and prolonging the service life of the mold. The arrangement of the limiting plates 24 enables the baffle 23 to be flexibly disassembled and assembled, facilitating the cleaning of the dust falling on one side of the filter plate 22 inside the filter box 21.

[0026] Furthermore, fixed side plates 12 are symmetrically and fixedly installed on both sides above the device table board 1. An electric cylinder two 13 is fixedly installed on one side of the fixed side plate 12. The push rod end of the electric cylinder two 13 penetrates through the fixed side plate 12 and is fixedly connected with the lower mold 3. By the telescopic movement of the push rod end of the electric cylinder two 13, the movement of the lower mold 3 is realized, facilitating the alternate use of the two injection molds during the injection molding production of automobile rearview mirrors and increasing the practicability.

[0027] Furthermore, a track plate 6 is fixedly installed on the upper end surface of the device platen 1, and there are two track plates 6. The track plate 6 slidably penetrates through the base 5, enabling the sliding of the base 5 to be guided, thereby increasing the linear stability during the translation of the injection mold. A support plate 2 is fixedly installed below the device platen 1 to support the device platen 1.

[0028] Furthermore, a back plate 15 is fixedly installed at the rear end above the upper mold 4. A hydraulic cylinder 16 is arranged at the rear end of the upper mold 4. The piston rod end of the hydraulic cylinder 16 is fixedly connected to the back plate 15, and the other end of the hydraulic cylinder 16 is fixedly connected to the base 5. By the telescopic movement of the piston rod of the hydraulic cylinder 16, the lifting of the upper mold 4 is realized, which is beneficial for the blanking in the injection production of automotive rearview mirrors and increases the practicability.

[0029] Furthermore, side blocks 17 are symmetrically and fixedly installed on both sides of the upper mold 4 respectively. Expansion rods 18 are symmetrically arranged on both sides of the lower mold 3 respectively. The upper end of the expansion rod 18 is fixedly connected to the side block 17, and the lower end of the expansion rod 18 is fixedly connected to the base 5. The expansion rods 18 provide additional support and guidance between the upper mold 4 and the lower mold 3, ensuring the accuracy and stability of the injection mold during the mold closing process.

[0030] Furthermore, an installation folding plate 7 is fixedly installed at the rear end of the device platen 1. An electric cylinder 8 is fixedly installed above the installation folding plate 7. A lifting plate 9 is arranged at the front end inside the installation folding plate 7. The push rod end of the electric cylinder 8 penetrates through the installation folding plate 7 and is fixedly connected to the lifting plate 9. An injection head 10 is fixedly installed above the lifting plate 9, and the injection head 10 penetrates through the lifting plate 9. The injection head 10 is externally connected to a plastic injection supply device. A guide post 11 is arranged at the front end of the electric cylinder 8. The guide post 11 penetrates through the installation folding plate 7 and is fixedly connected to the lifting plate 9. By the telescopic movement of the push rod end of the electric cylinder 8, the up and down movement of the lifting plate 9 and the injection head 10 is realized, facilitating the injection work. At the same time, the setting of the guide post 11 enhances the stability of the lifting plate 9 and ensures the smooth progress of the injection process.

[0031] Working principle: When in use, the device conducts the injection production of automotive rearview mirrors through the injection mold on the device platen 1. During injection, one injection mold is driven to move below the injection head 10. The injection head 10 moves downward under the drive of the electric cylinder 8 to inject molten plastic into the mold cavity, and then this injection mold is driven to reset. At the same time, the fan 19 in the heat dissipation box 14 below this injection mold starts to inhale air into the air inlet cavity 1401, and after being filtered by the filter box 21, it enters the heat dissipation cavity 302 through the flow channel 303 to conduct air-cooled heat dissipation on the mold, accelerating the heat dissipation and improving the production efficiency.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An injection molding device for producing automotive rearview mirrors, comprising a device table board (1), characterized in that: On both sides above the device platen (1), injection molds are symmetrically arranged respectively. The injection mold includes a lower mold (3), an upper mold (4) and a base (5). On both sides below the device platen (1), heat dissipation boxes (14) are symmetrically and fixedly installed respectively. The upper end of the heat dissipation box (14) extends into the upper end surface of the device platen (1). Above the inside of the lower mold (3), a mold cavity (301) is arranged. Along the outside of the mold cavity (301) inside the lower mold (3), a heat dissipation cavity (302) is arranged. Along both sides of the heat dissipation cavity (302) inside the lower mold (3), a first runner (303) and a second runner (304) are symmetrically arranged respectively. Both the first runner (303) and the second runner (304) are communicated with the heat dissipation cavity (302). On both sides inside the heat dissipation box (14), an air inlet cavity (1401) and an air outlet cavity (1402) are arranged respectively. The air inlet cavity (1401) is communicated with the first runner (303). The air outlet cavity (1402) is communicated with the second runner (304). Inside the air inlet cavity (1401) of the heat dissipation box (14), a fan (19) is fixedly installed. Above the fan (19), a collecting trough body (20) is arranged.

2. The injection molding device for manufacturing an automotive rearview mirror according to claim 1, characterized in that: On one side of the heat dissipation box (14), a filter box (21) is fixedly installed. The heat dissipation box (14) is communicated with the filter box (21). Inside the filter box (21), a filter plate (22) is fixedly installed. One side of the filter box (21) is open. At the opening of the filter box (21), a baffle (23) is arranged. At the front and rear ends on both sides of the baffle (23), limiting plates (24) are symmetrically arranged respectively. The limiting plates (24) are fixedly connected with the filter box (21).

3. The injection molding device for producing automobile rearview mirrors according to claim 1, characterized in that: On both sides above the device platen (1), fixed side plates (12) are symmetrically and fixedly installed respectively. On one side of the fixed side plate (12), a second electric cylinder (13) is fixedly installed. The push rod end of the second electric cylinder (13) penetrates through the fixed side plate (12) and is fixedly connected with the lower mold (3).

4. An injection molding device for producing an automotive rearview mirror according to claim 1, characterized in that: On the upper end surface of the device platen (1), a track plate (6) is fixedly installed, and there are two track plates (6). The track plate (6) slidably penetrates through the base (5). Below the device platen (1), a support plate (2) is fixedly installed.

5. An injection molding device for manufacturing an automotive rearview mirror according to claim 1, characterized in that: At the rear end above the upper mold (4), a back plate (15) is fixedly installed. At the rear end of the upper mold (4), a hydraulic cylinder (16) is arranged. The piston rod end of the hydraulic cylinder (16) is fixedly connected with the back plate (15). The other end of the hydraulic cylinder (16) is fixedly connected with the base (5).

6. The injection molding device for manufacturing an automotive rearview mirror according to claim 5, wherein: On both sides of the upper mold (4), side blocks (17) are symmetrically and fixedly installed respectively. On both sides of the lower mold (3), telescopic rods (18) are symmetrically arranged respectively. The upper end of the telescopic rod (18) is fixedly connected with the side block (17). The lower end of the telescopic rod (18) is fixedly connected with the base (5).

7. An injection molding device for producing an automotive rearview mirror according to claim 1, characterized in that: A mounting folding plate (7) is fixedly installed at the rear end of the device platen (1). An electric cylinder 1 (8) is fixedly installed above the mounting folding plate (7). A lifting plate (9) is arranged at the front end inside the mounting folding plate (7). The push rod end of the electric cylinder 1 (8) penetrates through the mounting folding plate (7) and is fixedly connected to the lifting plate (9). An injection molding head (10) is fixedly installed above the lifting plate (9), and the injection molding head (10) penetrates through the lifting plate (9). A guide post (11) is arranged at the front end of the electric cylinder 1 (8). The guide post (11) penetrates through the mounting folding plate (7) and is fixedly connected to the lifting plate (9).

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