Injection molding mold for steering lamp integrated rearview mirror shell

Abstract

The steering lamp integrated rearview mirror shell injection molding mold comprises a lower mold base, an upper mold base is installed at the upper end of the lower mold base, the left side and the right side of the lower end of the upper mold base are fixedly connected with guide columns, the guide columns are inserted into guide grooves in the side edges of the lower mold base, and an injection molding opening is formed in the middle of the upper mold base; a movable plate is mounted at the upper end of the upper mold base, a cleaning block is fixedly connected to the middle of the lower end of the movable plate, and the cleaning block extends into the injection molding opening; heat exchange cavities are formed in the lower die base and the upper die base, a flow guide pipe is connected to the front side of the heat exchange cavity in the lower die base, and a water conveying pipe is connected to the rear side of the heat exchange cavity in the lower die base. According to the injection molding mold for the integrated rearview mirror shell of the steering lamp, after injection molding is completed, molten plastic attached to the inner wall of an injection molding opening can be conveniently scraped off, meanwhile, synchronous water injection cooling can be conducted on the upper mold and the lower mold, and the cooling uniformity of an injection molding part in a mold cavity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection molding mold for a turn signal lamp integrated rearview mirror housing. Background Art

[0002] The rearview mirror is a tool for the driver to directly obtain external information such as the rear, side and bottom of the car when sitting in the cab seat. For the sake of aesthetics, some vehicles adopt an integrated turn signal structure for the rearview mirror housing. The rearview mirror housing is usually made of plastic, so an injection mold is required when processing the rearview mirror housing.

[0003] For example, an injection mold for an electric vehicle rearview mirror housing with an integrated turn signal lamp, with announcement number CN220362925U, includes a cooling box assembly and a lower mold assembly arranged at the upper end of the cooling box assembly, an auxiliary assembly is fixedly installed at the upper end of the elastic element, and when the rearview mirror model is demoulded, the elastic element will move upward during demoulding, and the circular fixed block fixedly installed at the upper end of the elastic element will drive the long plate to slide in the inner cavity of the concave vertical block, because a long rod is fixedly installed on one side of the lower end of the long plate, the long rod can support the lower end of the long plate, such a setting can make the long plates arranged on both sides of the upper end of the elastic element to assist the elastic element to rebound from both sides when the elastic element rebounds, thereby improving the stability of the elastic element during use, and thus improving the stability of the overall injection mold during use;

[0004] The above-mentioned prior art has the following technical problems: the existing injection mold is not convenient for automatically cleaning the injection port after injection molding, which leads to the molten plastic that has not flowed into the mold cavity but remains on the inner wall of the injection port to easily block the injection port after solidification, thereby affecting the subsequent injection molding process; at the same time, when cooling the injection mold, it is often only possible to cool the lower mold or the upper mold by injecting water separately, which is not convenient for synchronous cooling of the upper mold and the lower mold, which easily causes uneven cooling of the injection molded parts inside the mold cavity.

[0005] Therefore, we propose a turn signal integrated rearview mirror housing injection molding mold to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide an injection molding mold for a rearview mirror housing with an integrated turn signal lamp, so as to solve the problem raised in the above-mentioned background technology that the existing injection molds on the market are not convenient for automatic cleaning of the injection port after injection molding, which leads to the molten plastic that has not flowed into the mold cavity but remains on the inner wall of the injection port being easily blocked after solidification, thereby affecting the subsequent injection molding process. At the same time, when cooling the injection mold, it is often only possible to perform water cooling on the lower mold or the upper mold separately, which is not convenient for synchronous cooling of the upper mold and the lower mold, thereby easily causing the problem of uneven cooling of the injection molded parts inside the mold cavity.

[0007] To achieve the above object, the utility model provides the following technical solution: an injection molding mold for a turn signal integrated rearview mirror housing, comprising a lower mold base, an upper mold base is installed on the upper end of the lower mold base, and guide pillars are fixedly connected to the left and right sides of the lower end of the upper mold base, and the guide pillars are inserted into the guide grooves on the sides of the lower mold base, an injection port is opened in the middle of the upper mold base, and an expansion slot is provided at the lower end of the injection port;

[0008] A movable plate is installed at the upper end of the upper mold base, and a cleaning block is fixedly connected to the middle of the lower end of the movable plate, and the cleaning block extends into the interior of the injection port. Connecting rods are fixedly connected to the left and right sides of the lower end of the movable plate, and the connecting rods penetrate the guide column. The movable plate is connected to the upper mold base through an auxiliary spring, and the lower end of the connecting rod and the inner top of the guide groove are fixedly connected to a driving magnetic block;

[0009] Heat exchange cavities are provided inside the lower mold base and the upper mold base, the front side of the heat exchange cavity inside the lower mold base is connected to a guide pipe, the rear side of the heat exchange cavity inside the lower mold base is connected to a water pipe, the front side of the heat exchange cavity inside the upper mold base is connected to a docking pipe, and the rear side of the heat exchange cavity inside the upper mold base is connected to a drain pipe. After the lower mold base and the upper mold base are closed, the guide pipe and the docking pipe are plugged into each other to form a water flow path for the heat exchange cavities in the lower mold base and the upper mold base.

[0010] Preferably, the guide pillars are symmetrically arranged about the vertical center axis of the upper die base, and the guide pillars and the guide grooves on the sides of the lower die base correspond one to one, and the outer wall of the guide pillars and the inner wall of the guide grooves fit each other.

[0011] By adopting the above technical solution, the guide pillars are correspondingly inserted into the guide grooves, thereby ensuring the stability of the connection between the upper die base and the lower die base.

[0012] Preferably, the inner diameter of the injection port is smaller than the inner diameter of the expansion slot, and the cross-sections of the injection port and the expansion slot are both set to be circular structures.

[0013] By adopting the above technical solution, the molten plastic can be easily injected into the mold cavity through the injection port and the expansion groove.

[0014] Preferably, the upper end of the cleaning block is configured as a truncated cone structure, and the lower end is configured as a disc-shaped structure, and the outer wall of the disc-shaped structure at the lower end of the cleaning block and the inner wall of the injection port fit together.

[0015] By adopting the above technical solution, the cleaning block can be moved upward so that the attached matter on the inner wall of the injection port can be scraped off by utilizing the disc-shaped structure at the lower end.

[0016] Preferably, the connecting rod and the upper mold base are slidably connected, and the driving magnetic block at the lower end of the connecting rod and the driving magnetic block at the bottom end of the guide groove have opposite magnetic properties.

[0017] By adopting the above technical solution, when the driving magnetic block at the lower end of the connecting rod and the driving magnetic block inside the guide groove are close to each other, an adsorption magnetic force can be generated between the two.

[0018] Preferably, a sealing ring is provided inside the middle opening of the guide tube, and the middle of the guide tube and the middle of the butt joint tube are located on the same vertical straight line.

[0019] By adopting the above technical solution, the sealing performance of the butt joint pipe inserted into the flow guide pipe can be ensured by means of the sealing ring inside the middle opening of the flow guide pipe.

[0020] Preferably, the heat exchange chambers are symmetrically arranged about the vertical center axis of the mold base, and the symmetrically arranged heat exchange chambers are located on both sides of the mold core in the lower mold base and the upper mold base.

[0021] By adopting the above technical solution, water is injected into the heat exchange cavity, so that the water source can be used to exchange heat with the mold core, thereby realizing cooling of the injection molded part in the mold cavity inside the mold core.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows: the turn signal integrated rearview mirror housing injection molding mold can conveniently scrape off the molten plastic attached to the inner wall of the injection port after the injection molding is completed, and can simultaneously perform water injection cooling on the upper mold and the lower mold, thereby improving the uniformity of cooling the injection molded part inside the mold cavity;

[0023] 1. An injection port is provided, which is inserted into the guide groove on the side of the lower mold base through the guide column on the lower end side of the upper mold base, so as to ensure the stability of the connection between the upper mold base and the lower mold base, and at the same time, the injection port in the middle of the upper mold base is used to facilitate the injection of molten plastic into the mold cavity;

[0024] 2. A cleaning block is provided. When the upper mold base and the lower mold base are molded together, the driving magnetic block at the lower end of the connecting rod and the driving magnetic block inside the guide groove are close to each other and generate magnetic attraction. The magnetic attraction can make the connecting rod, the movable plate and the cleaning block move downward synchronously, so that the cleaning block moves to the inside of the expansion groove to realize the automatic opening of the injection port. When the injection is completed, the upper mold base and the lower mold base are separated, and the movable plate and the cleaning block are reset under the action of the auxiliary spring. The reset cleaning block can scrape off the residual molten plastic attached to the inner wall of the injection port, thereby realizing the automatic cleaning of the injection port;

[0025] 3. A guide pipe and a butt joint pipe are provided. After the upper mold base and the lower mold base are closed, the butt joint pipe on the front side of the upper mold base is inserted into the guide pipe on the front side of the lower mold base, so that a flow passage is formed in the mold cavities inside the upper mold base and the lower mold base. After that, when water is injected through the water pipe, the water source can pass through the heat exchange cavity inside the lower mold base and then enter the heat exchange cavity inside the upper mold base, and finally the heat exchange water source is discharged outward through the drain pipe, so as to realize uniform cooling of the injection molded parts inside the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0027] Figure 2 This is a front sectional structural schematic diagram of the utility model;

[0028] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0029] Figure 4 This is a schematic diagram of the initial state structure of the movable plate and the cleaning block of the utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the guide pipe and the butt-joint pipe of the utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the water delivery pipe and the drainage pipe of the utility model.

[0032] In the figure: 1. lower mold base; 2. upper mold base; 3. guide column; 4. guide groove; 5. injection port; 6. expansion groove; 7. movable plate; 8. cleaning block; 9. connecting rod; 10. auxiliary spring; 11. driving magnetic block; 12. heat exchange chamber; 13. guide pipe; 14. water pipe; 15. docking pipe; 16. drainage pipe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Example 1: Please refer to Figure 1-Figure 6 After the injection molding, the existing injection mold is not convenient for automatically cleaning the injection port, which causes the molten plastic that does not flow into the mold cavity and remains on the inner wall of the injection port to solidify, and easily blocks the injection port, thereby affecting the subsequent injection molding process. In order to solve this technical problem, this embodiment discloses the following technical content;

[0035] A turn signal integrated rearview mirror housing injection molding mold, comprising a lower mold base 1, an upper mold base 2 is installed at the upper end of the lower mold base 1, and guide pillars 3 are fixedly connected to the left and right sides of the lower end of the upper mold base 2, and the guide pillars 3 are inserted into the guide grooves 4 on the side of the lower mold base 1, an injection port 5 is opened in the middle of the upper mold base 2, and an expansion groove 6 is arranged at the lower end of the injection port 5; a movable plate 7 is installed at the upper end of the upper mold base 2, and a cleaning block 8 is fixedly connected to the middle of the lower end of the movable plate 7, and the cleaning block 8 extends The movable plate 7 is inserted into the interior of the injection port 5, and the left and right sides of the lower end of the movable plate 7 are fixedly connected with a connecting rod 9, and the connecting rod 9 passes through the guide column 3. The movable plate 7 is connected to the upper mold base 2 through an auxiliary spring 10. The lower end of the connecting rod 9 and the inner top of the guide groove 4 are fixedly connected with a driving magnetic block 11; the guide column 3 is symmetrically arranged about the vertical center axis of the upper mold base 2, and the guide column 3 and the guide groove 4 on the side of the lower mold base 1 correspond to each other, and the outer wall of the guide column 3 and the inner wall of the guide groove 4 fit each other. The inner diameter of the injection port 5 is smaller than the inner diameter of the expansion groove 6, and the cross-sections of the injection port 5 and the expansion groove 6 are both set as circular structures. The upper end of the cleaning block 8 is set as a truncated cone structure, and the lower end is set as a disc-shaped structure, and the outer wall of the disc-shaped structure at the lower end of the cleaning block 8 and the inner wall of the injection port 5 fit each other. The connecting rod 9 and the upper mold base 2 are connected in a sliding manner, and the driving magnetic block 11 at the lower end of the connecting rod 9 and the driving magnetic block 11 at the bottom end of the guide groove 4 have opposite magnetic properties.

[0036] When it is necessary to process the turn signal integrated rearview mirror housing, the guide column 3 on the upper mold base 2 is inserted into the guide groove 4 on the side of the lower mold base 1, so as to complete the mold closing between the upper mold base 2 and the lower mold base 1. After the upper mold base 2 and the lower mold base 1 are molded together, the driving magnetic block 11 at the lower end of the connecting rod 9 and the driving magnetic block 11 inside the guide groove 4 are close to each other, and the magnetic attraction between the two driving magnetic blocks 11 can make the connecting rod 9 and the movable plate 7 move downward. After the movable plate 7 moves downward, the cleaning block 8 in the middle can be moved downward synchronously, so that the cleaning block 8 moves to the inside of the expansion groove 6. Because the inner diameter of the expansion groove 6 is larger than the diameter of the cleaning block 8, at this time, the cleaning block 8 is moved downward. The cleaning block 8 does not cause blockage to the injection channel, and then the molten plastic can be injected through the injection port 5, and the molten plastic is guided to the inside of the mold cavity along the inclined surface of the cleaning block 8. When the injection is completed, the upper mold base 2 moves upward to separate from the lower mold base 1. After the upper mold base 2 is reset and moved upward, the driving magnetic block 11 at the lower end of the connecting rod 9 and the driving magnetic block 11 inside the guide groove 4 move away from each other, and the connecting rod 9 and the movable plate 7 are reset under the action of the auxiliary spring 10. After the movable plate 7 is reset, the cleaning block 8 can be synchronously moved upward and reset, and the molten plastic attached to the inner wall of the injection port 5 can be scraped off by the cleaning block 8 after reset and upward movement.

[0037] Embodiment 2: The technical content disclosed in this embodiment is a further improvement based on the above embodiment 1. When cooling the injection mold, it is often only possible to cool the lower mold or the upper mold with water separately, which is not convenient for synchronous cooling of the upper mold and the upper mold, and thus easily causes uneven cooling of the injection molded part inside the mold cavity. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown;

[0038] A heat exchange chamber 12 is provided inside the lower mold base 1 and the upper mold base 2. The front side of the heat exchange chamber 12 inside the lower mold base 1 is connected to a guide pipe 13, the rear side of the heat exchange chamber 12 inside the lower mold base 1 is connected to a water pipe 14, the front side of the heat exchange chamber 12 inside the upper mold base 2 is connected to a butt joint pipe 15, and the rear side of the heat exchange chamber 12 inside the upper mold base 2 is connected to a drain pipe 16. After the lower mold base 1 and the upper mold base 2 are molded together, the guide pipe 13 and the butt joint pipe 15 are plugged into each other, so that the heat exchange chambers 12 in the lower mold base 1 and the upper mold base 2 form a water flow path. A sealing ring is provided inside the middle opening of the guide pipe 13, and the middle of the guide pipe 13 and the middle of the butt joint pipe 15 are located on the same vertical straight line. The heat exchange chamber 12 is symmetrically arranged about the vertical center axis of the mold base, and the symmetrically arranged heat exchange chambers 12 are located on both sides of the mold core in the lower mold base 1 and the upper mold base 2.

[0039] After the upper mold base 2 and the lower mold base 1 are molded together, the butt joint 15 on the front side of the upper mold base 2 is inserted into the guide tube 13 on the front side of the lower mold base 1, and the sealing ring on the inner side of the opening of the guide tube 13 is used to ensure the sealing between the butt joint 15 and the guide tube 13 after insertion. Thereafter, when it is necessary to cool the injection molded parts in the mold cavity, the water supply pipe 14 is connected to the external pump, and the water source is input into the heat exchange cavity 12 inside the lower mold base 1 through the water supply pipe 14 through the pump. Then the water flows along the guide tube 13 and the butt joint 15 into the heat exchange cavity 12 inside the upper mold base 2, and finally the water source is discharged outward through the drain pipe 16 on the rear side of the heat exchange cavity 12 inside the upper mold base 2. The water source passes through the heat exchange cavity 12 inside the lower mold base 1 and the upper mold base 2 in turn, so that the upper mold base 2 and the lower mold base 1 can be cooled synchronously by the water source, thereby improving the uniformity of cooling the injection molded parts inside the mold cavity.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mold for injection molding of a turn signal integrated rearview mirror housing, comprising a lower mold base (1), an upper mold base (2) is mounted on the upper end of the lower mold base (1), and guide pillars (3) are fixedly connected to the left and right sides of the lower end of the upper mold base (2), the guide pillars (3) are inserted into the inside of a guide groove (4) on the side of the lower mold base (1), an injection port (5) is opened in the middle of the upper mold base (2), and an expansion groove (6) is arranged at the lower end of the injection port (5); It is characterized in that Also includes: A movable plate (7) is installed at the upper end of the upper mold base (2), and a cleaning block (8) is fixedly connected to the middle of the lower end of the movable plate (7), and the cleaning block (8) extends into the interior of the injection port (5). Connecting rods (9) are fixedly connected to the left and right sides of the lower end of the movable plate (7), and the connecting rods (9) penetrate the guide column (3). The movable plate (7) and the upper mold base (2) are connected to each other through an auxiliary spring (10), and the lower end of the connecting rod (9) and the inner top of the guide groove (4) are fixedly connected to a driving magnetic block (11); The lower mold base (1) and the upper mold base (2) are provided with a heat exchange cavity (12); the front side of the heat exchange cavity (12) in the lower mold base (1) is connected to a flow guide pipe (13); the rear side of the heat exchange cavity (12) in the lower mold base (1) is connected to a water supply pipe (14); the front side of the heat exchange cavity (12) in the upper mold base (2) is connected to a docking pipe (15); the rear side of the heat exchange cavity (12) in the upper mold base (2) is connected to a drainage pipe (16); after the lower mold base (1) and the upper mold base (2) are closed, the flow guide pipe (13) and the docking pipe (15) are plugged into each other, so that the heat exchange cavity (12) in the lower mold base (1) and the upper mold base (2) form a water flow path.

2. The injection molding mold for a turn signal integrated rearview mirror housing according to claim 1, characterized in that: The guide pillars (3) are symmetrically arranged about the vertical center axis of the upper die base (2), and the guide pillars (3) and the guide grooves (4) on the sides of the lower die base (1) correspond one to one, and the outer wall of the guide pillars (3) and the inner wall of the guide grooves (4) fit each other.

3. The injection molding mold for a turn signal integrated rearview mirror housing according to claim 1, characterized in that: The inner diameter of the injection port (5) is smaller than the inner diameter of the expansion slot (6), and the cross sections of the injection port (5) and the expansion slot (6) are both arranged to be circular structures.

4. The injection molding mold for a turn signal integrated rearview mirror housing according to claim 1, characterized in that: The upper end of the cleaning block (8) is configured as a truncated cone-shaped structure, and the lower end is configured as a disc-shaped structure, and the outer wall of the disc-shaped structure at the lower end of the cleaning block (8) and the inner wall of the injection port (5) fit each other.

5. The injection molding mold for a turn signal integrated rearview mirror housing according to claim 1, characterized in that: The connecting rod (9) and the upper die seat (2) are slidably connected, and the driving magnetic block (11) at the lower end of the connecting rod (9) and the driving magnetic block (11) at the bottom end of the guide groove (4) have opposite magnetic properties.

6. The injection molding mold for a turn signal integrated rearview mirror housing according to claim 1, characterized in that: A sealing ring is arranged inside the middle opening of the flow guide pipe (13), and the middle of the flow guide pipe (13) and the middle of the butt joint pipe (15) are located on the same vertical straight line.

7. The turn signal integrated rearview mirror housing injection molding mold according to claim 1, characterized in that: The heat exchange chamber (12) is symmetrically arranged about the vertical center axis of the mold base, and the symmetrically arranged heat exchange chamber (12) is located on both sides of the mold core in the lower mold base (1) and the upper mold base (2).

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