Automobile rearview mirror injection molding equipment and technology capable of achieving dynamic compensation

Abstract

The invention discloses automobile rearview mirror injection molding equipment and technology capable of achieving dynamic compensation, and relates to the technical field of automobile part injection molding. The automobile rearview mirror injection molding equipment comprises a machine body, a rotating mold is arranged in the machine body and rotationally connected with the machine body, a movable mold is arranged above the rotating mold and driven by a hydraulic cylinder, and the hydraulic cylinder is connected with the rotating mold; a rotating cavity is further formed in the machine body, and the rotating mold is rotationally connected with the rotating cavity; a heating box is arranged above the machine body, an injection molding pipe is arranged between the heating box and the rotating mold, the injection molding pipe is communicated with the heating box and the rotating mold, a motor heating wire is arranged on the pipe wall of the injection molding pipe, and a conveying auger is arranged in the injection molding pipe; the rotating die is rotatably provided with a small die and a large die, a forming block capable of being combined and adjusted is arranged in the moving die, and a die cavity structure can be dynamically adjusted according to the size of the die; the equipment is further provided with a preheating system composed of a rotating cavity and a flowing plate, and uniform preheating of the mold is achieved by conveying heating airflow through an air pump.

Description

Technical Field

[0001] This invention relates to the field of automotive parts injection molding technology, specifically to a dynamically compensated automotive rearview mirror injection molding equipment and process. Background Technology

[0002] As an important automotive safety component, the molding quality of automotive rearview mirrors directly affects assembly accuracy and performance. Currently, most automotive rearview mirrors are produced using injection molding. Traditional injection molding equipment typically uses a fixed mold structure, with one mold only capable of producing a single product specification. When producing rearview mirrors of different sizes or models, it is necessary to replace the entire mold or adjust multiple modules, which is cumbersome, time-consuming, and prone to defects such as product size deviations and flash due to inaccurate mold closing. Summary of the Invention

[0003] The purpose of this invention is to provide a dynamically compensated injection molding equipment and process for automotive rearview mirrors to solve the problems raised in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A dynamically compensated automotive rearview mirror injection molding equipment includes a machine body, a rotating mold disposed inside the machine body and rotatably connected to the machine body, a movable mold disposed above the rotating mold and driven by a hydraulic cylinder, and a rotating cavity disposed inside the machine body, the rotating mold being rotatably connected to the rotating cavity. A heating box is provided above the machine body for melting plastic. An injection tube is provided between the heating box and the rotating mold. The injection tube connects the heating box and the rotating mold. A motor heating wire is provided on the wall of the injection tube. A conveying auger is provided inside the injection tube and is driven by a conveying motor.

[0005] The hydraulic cylinder push rod drives the moving mold to move closer to the rotating mold, causing the moving mold and rotating mold to close together to form an injection cavity. The heating box melts the plastic, and then the heating box conveys the molten plastic to the injection tube. During the molten plastic conveying stage, the electric heating wire inside the injection tube wall is turned on, so that the molten plastic is conveyed in a molten state inside the injection tube. By starting the conveying motor, the conveying motor drives the conveying auger to rotate, conveying the molten plastic from the end of the injection tube near the heating box to the end of the injection tube near the injection cavity. The molten plastic is conveyed through the injection tube into the injection cavity for injection molding.

[0006] Preferably, the rotating mold is provided with a drive wheel and a support wheel on both sides, and the drive wheel and the support wheel are rotatably connected to the machine body. The machine body is provided with a drive motor, the output shaft of the drive motor is connected to the drive wheel, and the injection tube passes through the support wheel.

[0007] When switching between the small mold and the large mold, the controller starts the drive motor. The output shaft of the drive motor drives the drive wheel to rotate, which in turn drives the rotating mold to rotate. This rotating mold then drives both the small and large molds to rotate, so that the mold to be injected is located on the side of the rotating mold away from the rotating cavity. By switching between the small and large molds, the injection molding equipment can complete the injection molding of molds of different sizes, thereby improving the applicability of the injection molding equipment.

[0008] Preferably, the moving mold includes two first moving grooves, which are symmetrically arranged on both sides of the moving mold. Each first moving groove is composed of an inclined groove and a straight groove. A first inclined block is provided in the inclined groove and slides along the inclined groove in a sealed manner. A first forming block is provided in the straight groove and an electromagnetic spring is provided in the straight groove. The first forming block slides along the straight groove in a sealed manner through the electromagnetic spring.

[0009] Preferably, a second moving groove is provided between the two first moving grooves, and a second forming block is provided on both sides of the second moving groove. The second forming block slides along the side of the second moving groove in a sealed manner. A third forming block is provided between the two second forming blocks. A push cylinder is provided on the top of the moving mold. The push rod of the push cylinder is connected to the third forming block. The third forming block is slidably and sealedly connected to the second moving groove.

[0010] When injection molding is required in a large mold, the large mold is located on the side of the rotating mold closer to the moving mold. The controller first activates the push cylinder, and the push rod in the push cylinder drives the third molding block to move. The third molding block moves away from the rotating mold. When the third molding block separates from the second molding block during the movement, the controller de-energizes the electromagnetic spring in the straight groove. The electromagnetic spring loses its magnetic force, and the first molding block moves under the action of the electromagnetic spring. The first molding block moves along the straight groove away from the second moving groove. During the movement, the two first molding blocks move away from each other, and there is space between them. This allows the second molding block to slide down the side wall of the second moving groove under the action of gravity. The two second molding blocks move synchronously and slide between the two first molding blocks, combining with them to form a mold block that fits the large mold. At the same time as the two first molding blocks move, the first molding blocks will press the first inclined block, causing the first inclined block to move along the inclined groove away from the rotating mold. When injection molding is required in a small mold, the small mold is located on the side of the rotating mold closer to the moving mold. The controller first activates the electromagnetic spring in the straight groove. The electromagnetic spring is energized and generates magnetic force, which drives the first molding block to move towards the center of the moving mold. This causes the two first molding blocks to move towards each other. During the movement of the first molding block, it pushes the second molding block to move towards the side of the second moving groove, causing the second molding block to move away from the rotating mold. As a result, the space between the two first molding blocks continuously decreases. Then, the controller activates the push cylinder. The push rod in the push cylinder drives the third molding block to move towards the side of the rotating mold. This allows the third molding block to combine with the two first molding blocks to form a mold block suitable for the small mold. While the first molding block is moving, as it moves away from the inclined groove, the first inclined block moves along the inclined groove towards the side of the straight groove. This first inclined block compensates for the ground of the moving mold, preventing molten plastic from entering the first moving groove during the injection molding process.

[0011] Preferably, a small mold and a large mold are respectively provided on the upper and lower sides of the rotating mold, and the size of the large mold is larger than the size of the small mold.

[0012] Depending on the size of the injection molding, a small mold or a large mold can be selected. The rotation of the drive wheel and support wheel drives the rotating mold to flip up and down, thereby switching between the small mold and the large mold.

[0013] Preferably, the rotating mold has an injection port in the middle, which connects the small mold and the large mold. Each injection port is equipped with a solenoid valve on the side close to the small mold and the large mold, and the injection port between the two solenoid valves is connected to the injection tube. The rotating mold body is also equipped with several heating tubes, which are connected to the rotating cavity.

[0014] During the injection molding process, the solenoid valve on the side of the injection port away from the rotating cavity is in the open state, while the solenoid valve on the side of the injection port close to the rotating cavity is in the closed state. This means that the molten plastic transported by the injection tube can only enter the injection cavity on the side away from the rotating cavity, and cannot enter the rotating cavity through the injection port located below. The hot air transported in the rotating cavity will move towards the side closer to the rotating mold. After being transported to the vicinity of the rotating mold, the hot air will enter the heating pipe and transfer heat within the heating pipe, thereby achieving preheating and heat preservation of the rotating mold.

[0015] Preferably, the cross-section of the rotating cavity is arc-shaped, and a plurality of flow plates are arranged inside the rotating cavity. The plurality of flow plates are arranged around the bottom surface of the rotating cavity, and an electric heating wire is arranged inside the flow plates.

[0016] During the preheating and heat preservation stages, the controller activates the electric heating wire in the flow plate. The heat generated by the electric heating wire is transferred to the surface of the flow plate. When the gas is output from the gas outlet into the rotating cavity, the gas comes into contact with the flow plate, and the gas carries away the heat from the flow plate, thus heating the gas itself.

[0017] Preferably, an air pump is provided inside the machine body, and several air inlets are provided on the side of the machine body near the rotating cavity. The air pump is connected to the air inlets through pipes.

[0018] The controller starts the air pump, which draws in outside air and delivers it to the air inlet through a pipe. During the preheating stage, several air inlets on both sides of the rotating chamber are simultaneously connected to the air pump, allowing outside air to be delivered from both sides of the rotating chamber to the center. During the cooling stage, the air inlet on one side of the rotating chamber is connected to the air pump, while the connection to the air pump on the other side is closed. Thus, during the cooling stage, the gas in the rotating chamber flows in a state of one-sided inflow and one-sided outflow.

[0019] Preferably, the center height of the flow plate is greater than the edge height of the flow plate.

[0020] Because the center height of the flow plate is greater than the edge height of the flow plate, when the gas flows from the edge of the flow plate to the center of the flow plate, the gas will be transported to the side closer to the rotating mold, and the gas on both sides flows towards the center of the rotating cavity at the same time, so that the two airflows meet and collide at the center of the rotating cavity. Due to the inclined setting of the flow plate, the colliding airflows will be transported to the side closer to the rotating mold, thereby completing the heating effect of the rotating mold and transporting the gas to the heating pipe.

[0021] An injection molding process for automotive rearview mirror injection molding equipment with dynamic compensation. The injection molding process includes the following specific steps: S1. Based on the injection molding size, the rotating mold is driven by a drive motor; S2. The moving mold changes the size of the mold block according to the size of the mold groove at the top of the rotating mold; S3. The hydraulic cylinder drives the moving mold to move towards the rotating mold and closes to form the injection cavity; S4. The heating chamber melts the plastic. S5. During the melting process, an air pump delivers outside air to the rotating chamber and heats the outside air. S6. The heating box delivers molten plastic to the injection cavity for injection molding.

[0022] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a rotatable rotating mold, small molds and large molds are integrated, and drive wheels and support wheels are used to achieve rapid flipping and switching. In addition, the moving mold is equipped with a first moving groove, a second moving groove and multiple sliding and combinable molding blocks. The mold blocks are automatically combined and separated by electromagnetic springs, push cylinders and other mechanisms. Through mold cavities of different sizes, the same equipment can adapt to the injection molding needs of rearview mirrors of different sizes. Dynamic compensation is performed during the mold conversion process to prevent molten plastic from flowing into the gaps of the mold.

[0023] 2. A flow plate with a high center and low edges is set in the rotating cavity, and combined with an air pump and air outlet to achieve directional heating and circulation of airflow. At the same time, two opposing airflows meet and collide in the rotating cavity, so that the two airflows merge into one preheating gas delivered to the rotating mold. This can uniformly preheat and keep the rotating mold warm, improve the fluidity and filling stability of the molten plastic, and reduce molding problems such as cold material and shrinkage. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the internal structure during small mold injection molding; Figure 3 This is the internal front view during small mold injection molding; Figure 4 This is a schematic diagram of the internal structure during large-mold injection molding; Figure 5 This is the internal front view during large mold injection molding; Figure 6 This is a schematic diagram of the longitudinal section structure of the present invention; Figure 7 This is a longitudinal sectional front view of the present invention; In the diagram: 1. Body; 11. Rotating chamber; 12. Drive wheel; 13. Support wheel; 14. Flow plate; 15. Air inlet; 2. Rotary mold; 21. Small mold; 22. Large mold; 23. Injection port; 24. Heating element; 3. Moving mold; 31. First moving groove; 32. First inclined block; 33. First forming block; 34. Second moving groove; 35. Second forming block; 36. Third forming block; 4. Heating box; 41. Injection molding pipe. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example: Figures 1-7 As shown, the present invention provides a dynamically compensated injection molding equipment and process technology solution for automotive rearview mirrors, including a machine body 1, a rotating mold 2 is provided inside the machine body 1, the rotating mold 2 is rotatably connected to the machine body 1, a movable mold 3 is provided above the rotating mold 2, the movable mold 3 is driven by a hydraulic cylinder, and a rotating cavity 11 is also provided inside the machine body 1, the rotating mold 2 is rotatably connected to the rotating cavity 11; A heating box 4 is provided above the machine body 1. The heating box 4 is used to melt plastic. An injection tube 41 is provided between the heating box 4 and the rotating mold 2. The injection tube 41 connects the heating box 4 and the rotating mold 2. The tube wall of the injection tube 41 is provided with a motor heating wire. A conveying auger is provided inside the injection tube 41. The conveying auger is driven by a conveying motor.

[0027] In one specific embodiment of the present invention, the rotating mold 2 is provided with a drive wheel 12 and a support wheel 13 on both sides. The drive wheel 12 and the support wheel 13 are rotatably connected to the machine body 1. A drive motor is provided inside the machine body 1. The output shaft of the drive motor is connected to the drive wheel 12. The injection tube 41 passes through the support wheel 13.

[0028] In one specific embodiment of the present invention, the cross-section of the rotating cavity 11 is arc-shaped, and a plurality of flow plates 14 are arranged inside the rotating cavity 11. The plurality of flow plates 14 are arranged around the bottom surface of the rotating cavity 11, and an electric heating wire is arranged inside the flow plate 14.

[0029] In one specific embodiment of the present invention, an air pump is provided inside the body 1, and a plurality of air inlets 15 are provided on the side of the body 1 near the rotating cavity 11, and the air pump is connected to the air inlets 15 through a pipe.

[0030] In one specific embodiment of the present invention, the center height of the flow plate 14 is greater than the edge height of the flow plate 14.

[0031] In one specific embodiment of the present invention, a small mold 21 and a large mold 22 are respectively provided on the upper and lower sides of the rotating mold 2, and the size of the large mold 22 is larger than the size of the small mold 21.

[0032] In one specific embodiment of the present invention, an injection port 23 is provided in the middle of the rotating mold 2. The injection port 23 connects the small mold 21 and the large mold 22. Solenoid valves are provided on the side of the injection port 23 close to the small mold 21 and the large mold 22 respectively. The injection port 23 between the two solenoid valves is connected to the injection tube 41. Several heating tubes 24 are also provided on the body 1 of the rotating mold 2. The heating tubes 24 are connected to the rotating cavity 11.

[0033] In one specific embodiment of the present invention, the movable mold 3 includes two first movable grooves 31, which are symmetrically arranged on both sides of the movable mold 3. Each first movable groove 31 is composed of an inclined groove and a straight groove. A first inclined block 32 is provided in the inclined groove and slides along the inclined groove in a sealed manner. A first forming block 33 is provided in the straight groove and an electromagnetic spring is provided in the straight groove. The first forming block 33 slides along the straight groove in a sealed manner through the electromagnetic spring.

[0034] In one specific embodiment of the present invention, a second moving groove 34 is provided between the two first moving grooves 31, and a second forming block 35 is provided on both sides of the second moving groove 34. The second forming block 35 slides along the side of the second moving groove 34 in a sealed manner. A third forming block 36 is provided between the two second forming blocks 35. A push cylinder is provided on the top of the moving mold 3, and the push rod of the push cylinder is connected to the third forming block 36. The third forming block 36 is slidably and sealedly connected to the second moving groove 34.

[0035] An injection molding process for automotive rearview mirror injection molding equipment with dynamic compensation. The injection molding process includes the following specific steps: S1. Based on the injection molding size, the rotating mold 2 is driven to rotate by the drive motor; S2, The moving mold 3 changes the size of the mold block according to the size of the mold groove at the top of the rotating mold 2; S3. The hydraulic cylinder drives the moving mold 3 to move towards the rotating mold 2 and closes to form the injection cavity; S4, Heating box 4 melts the plastic; S5. During the melting process, an air pump delivers outside air to the rotating chamber 11 and heats the outside air. S6. The heating box 4 delivers molten plastic to the injection cavity for injection molding.

[0036] Working principle of the invention: When switching between the small mold 21 and the large mold 22, the controller controls the drive motor to start. The output shaft of the drive motor drives the drive wheel 12 to rotate, and the drive wheel 12 drives the rotating mold 2 to rotate. In turn, the rotating mold 2 drives the small mold 21 and the large mold 22 to rotate, so that the mold to be injected is located on the side of the rotating mold 2 away from the rotating cavity 11. When injection molding is required in the large mold 22, which is located on the side of the rotating mold 2 closer to the moving mold 3, the controller first activates the push cylinder. The push rod in the push cylinder drives the third molding block 36 to move away from the rotating mold 2. When the third molding block 36 disengages from the second molding block 35 during its movement, the controller de-energizes the electromagnetic spring in the straight groove. The electromagnetic spring loses its magnetic force, and the first molding block 33 moves under the force of the electromagnetic spring. The first molding block 33 moves along the straight groove away from the second moving groove 34. The two first molding blocks 33 move... During the process, the two first molding blocks 33 move away from each other, creating a space between them. This allows the second molding block 35 to slide down the side wall of the second moving groove 34 under the influence of gravity. Consequently, the two second molding blocks 35 move synchronously and slide between the two first molding blocks 33, forming a mold block that fits the large mold 22. As the two first molding blocks 33 move, they press against the first inclined block 32, causing it to move along the inclined groove and move away from the rotating mold 2. When injection molding is required in the small mold 21, the small mold 21 is located on the side of the rotating mold 2 closer to the moving mold 3. The controller then activates the electromagnetic spring in the straight groove. The energized electromagnetic spring generates magnetic force, which drives the first molding block 33 to move towards the center of the moving mold 3. This causes the two first molding blocks 33 to move towards each other. During this movement, the first molding block 33 pushes the second molding block 35 towards the side closer to the second moving groove 34, causing the second molding block 35 to move away from the rotating mold 2. Consequently, the space between the two first molding blocks 33 continuously shrinks. Small, then the controller controls the push cylinder to start, the push rod in the push cylinder drives the third molding block 36 to move, the third molding block 36 moves to the side closer to the rotating mold 2, so that the third molding block 36 and the two first molding blocks 33 combine to form a mold block suitable for the small mold 21. While the first molding block 33 is moving, as the first molding block 33 moves away from the inclined groove, the first inclined block 32 will move along the inclined groove to the side closer to the straight groove. In this way, the first inclined block 32 will compensate the ground of the moving mold 3, and prevent the molten plastic from entering the first moving groove 31 during the injection molding process. The controller controls the air pump to start, the air pump draws in outside air and delivers it to the air inlet 15 through the pipeline. During the preheating stage, several air inlets 15 on both sides of the rotating cavity 11 are simultaneously connected to the air pump, so that outside air is delivered from both sides of the rotating cavity 11 to the center of the rotating cavity 11. During the cooling stage, the air inlet 15 on one side of the rotating cavity 11 is connected to the air pump, and the connection channel with the air pump on the other side is closed. Thus, during the cooling stage, the gas in the rotating cavity 11 is in a flow state of one side in and one side out. Since the center height of the flow plate 14 is greater than the edge height of the flow plate 14, when the gas flows from the edge of the flow plate 14 to the center of the flow plate 14, the gas will be transported to the side closer to the rotating mold 2, and the gas on both sides flows to the center of the rotating cavity 11 at the same time, so that the two airflows meet and collide at the center of the rotating cavity 11. Due to the inclined setting of the flow plate 14, the colliding airflows will be transported to the side closer to the rotating mold 2, thereby completing the heating effect of the rotating mold 2 and transporting the gas to the heating tube 24. The hot air transported in the rotating cavity 11 will move towards the side closer to the rotating mold 2. After the hot air is transported to the vicinity of the rotating mold 2, it will enter the heating pipe 24 and transfer heat in the heating pipe 24, thereby achieving preheating and heat preservation of the rotating mold 2. The hydraulic cylinder push rod drives the moving mold 3 to move closer to the rotating mold 2, so that the moving mold 3 and the rotating mold 2 close to form an injection cavity. The heating box 4 melts the plastic. Then the heating box 4 conveys the molten plastic to the injection tube 41. During the molten plastic conveying stage, the electric heating wire inside the injection tube 41 is turned on, so that the molten plastic is conveyed in the injection tube 41 in a molten state. By starting the conveying motor, the conveying motor drives the conveying auger to rotate, conveying the molten plastic from the end of the injection tube 41 near the heating box 4 to the end of the injection tube 41 near the injection cavity. The molten plastic is conveyed to the injection cavity through the injection tube 41 for injection molding. During the injection molding process, the solenoid valve on the side of the injection port 23 away from the rotating cavity 11 is in the open state, while the solenoid valve on the side of the injection port 23 close to the rotating cavity 11 is in the closed state. This means that the molten plastic transported by the injection tube 41 can only enter the injection cavity on the side away from the rotating cavity 11, and cannot enter the rotating cavity 11 through the injection port 23 located below.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dynamically compensable injection molding apparatus for automotive rearview mirrors, characterized by: The system includes a body (1), a rotating mold (2) is provided inside the body (1), the rotating mold (2) is rotatably connected to the body (1), a moving mold (3) is provided above the rotating mold (2), the moving mold (3) is driven by a hydraulic cylinder, and a rotating cavity (11) is also provided inside the body (1), the rotating mold (2) is rotatably connected to the rotating cavity (11); A heating box (4) is provided above the machine body (1). The heating box (4) is used to melt plastic. An injection tube (41) is provided between the heating box (4) and the rotating mold (2). The injection tube (41) connects the heating box (4) and the rotating mold (2). A motor thermostat is provided on the wall of the injection tube (41). A conveying auger is provided inside the injection tube (41). The conveying auger is driven by a conveying motor.

2. The injection molding apparatus for a vehicle rearview mirror capable of dynamic compensation according to claim 1, wherein: The rotating mold (2) is provided with a drive wheel (12) and a support wheel (13) on both sides. The drive wheel (12) and the support wheel (13) are rotatably connected to the machine body (1). The machine body (1) is provided with a drive motor. The output shaft of the drive motor is connected to the drive wheel (12). The injection tube (41) passes through the support wheel (13).

3. The injection molding apparatus for a vehicle rearview mirror according to claim 1, wherein: The moving mold (3) includes two first moving grooves (31), which are symmetrically arranged on both sides of the moving mold (3). The first moving groove (31) is composed of an inclined groove and a straight groove. A first inclined block (32) is provided in the inclined groove and slides along the inclined groove in a sealed manner. A first forming block (33) is provided in the straight groove and an electromagnetic spring is provided in the straight groove. The first forming block (33) slides along the straight groove in a sealed manner through the electromagnetic spring.

4. The injection molding apparatus for a vehicle rearview mirror according to claim 3, wherein: A second moving groove (34) is provided between the two first moving grooves (31). A second forming block (35) is provided on both sides of the second moving groove (34). The second forming block (35) slides along the side of the second moving groove (34) in a sealed manner. A third forming block (36) is provided between the two second forming blocks (35). A push cylinder is provided on the top of the moving mold (3). The push rod of the push cylinder is connected to the third forming block (36). The third forming block (36) is slidably and sealedly connected to the second moving groove (34).

5. The injection molding apparatus for a vehicle rearview mirror according to claim 1, wherein: The rotating mold (2) has a small mold (21) and a large mold (22) on its upper and lower sides respectively, and the size of the large mold (22) is larger than that of the small mold (21).

6. The injection molding apparatus for a vehicle rearview mirror that can be dynamically compensated according to claim 5, wherein: The rotating mold (2) has an injection port (23) in the middle, which connects the small mold (21) and the large mold (22). The injection port (23) is equipped with a solenoid valve on the side of the small mold (21) and the large mold (22) respectively. The injection port (23) between the two solenoid valves is connected to the injection tube (41). The rotating mold (2) also has several heating tubes (24) on its body (1), which are connected to the rotating cavity (11).

7. The automotive rearview mirror injection molding equipment with dynamic compensation according to claim 1, characterized in that: The cross-section of the rotating cavity (11) is arc-shaped. Several flow plates (14) are arranged inside the rotating cavity (11). The flow plates (14) are arranged around the bottom surface of the rotating cavity (11). Electric heating wires are arranged inside the flow plates (14).

8. The automotive rearview mirror injection molding equipment with dynamic compensation according to claim 1, characterized in that: An air pump is installed inside the body (1), and several air inlets (15) are provided on the side of the body (1) near the rotating cavity (11). The air pump is connected to the air inlets (15) through a pipe.

9. The automotive rearview mirror injection molding equipment with dynamic compensation according to claim 7, characterized in that: The center height of the flow plate (14) is greater than the edge height of the flow plate (14).

10. An injection molding process applied to an injection molding equipment for dynamically compensated automotive rearview mirrors as described in any one of claims 1-9, characterized in that: The injection molding process includes the following specific steps: S1. Based on the injection molding size, the rotating mold (2) is driven to rotate by the drive motor; S2, The moving mold (3) changes the size of the mold block according to the size of the mold groove at the top of the rotating mold (2); S3. The hydraulic cylinder drives the moving mold (3) to move towards the rotating mold (2) and closes to form the injection cavity; S4. The heating box (4) melts the plastic. S5. During the melting process, the air pump delivers outside air to the rotating chamber (11) and heats the outside air. S6. The heating box (4) delivers molten plastic to the injection cavity for injection molding.

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