A type of injection mold base for automotive exterior parts that only uses a fixed mold to connect cooling pipes.

Abstract

This utility model discloses an injection mold base for automotive exterior parts that uses only a fixed mold to connect cooling pipes. The inlet and outlet of two cooling pipes are both connected to the fixed mold. The coolant in one cooling pipe enters the first cooling channel and cools the fixed mold. After the mold is closed, the other cooling pipe enters from the L-shaped inlet channel and exits from the L-shaped outlet channel. It enters the inlet channel, transverse flow channel, various second cooling channels and outlet channel of the moving mold through the first insert pipe and cools the inside of the moving mold. Compared with the traditional method of connecting the moving mold with pipes, it does not cause the pipes to move back and forth, which greatly improves the stability of the connection between the cooling pipes and the mold base. It avoids the situation where the cooling pipes fall off or the sealing performance decreases due to back and forth movement after long-term use. At the same time, the L-shaped inlet channel is provided with an air vent, which can completely drain the coolant in the moving mold from the L-shaped outlet channel of the fixed mold before the mold is opened, avoiding the occurrence of coolant leakage.

Description

Technical Field

[0001] This utility model relates to the field of injection mold base technology, specifically to an injection mold base for automotive exterior parts that uses only a fixed mold to connect cooling pipes. Background Technology

[0002] Automotive exterior decoration refers to altering the appearance of a car by adding or modifying exterior parts such as front and rear bumpers, body kits, and spoilers, without changing the car's function and structure. This makes the car more attractive and stylish, satisfying people's aesthetic preferences and individual needs.

[0003] Automotive exterior parts are generally manufactured using injection molds, which consist of a mold base and a mold core. Currently, automotive exterior part injection mold bases typically consist of a fixed mold and a moving mold. The cooling structure of both the fixed and moving molds generally involves cooling channels running through them, with inlet and outlet pipes installed at both ends. The fixed mold is usually fixedly installed within the frame, while the moving mold moves back and forth. Because the inlet and outlet pipes are connected to both ends of the moving mold, during long-term movement, the connections between the inlet and outlet pipes and the moving mold are prone to detachment and leakage. Therefore, an improved technology is urgently needed to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide an injection mold frame for automotive exterior parts that uses only a fixed mold to connect the cooling pipes. The inlet and outlet of both cooling pipes are connected to the fixed mold, which avoids the cooling pipes from falling off or the sealing performance from the back and forth movement of the moving mold after long-term use, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection mold base for automotive exterior parts that uses only a fixed mold to connect cooling pipes, comprising a fixed mold and a moving mold;

[0006] A first fixing plate is provided on one side of the fixed mold. The four corners of the first fixing plate near the fixed mold are connected to the main guide rods, which all pass through the fixed mold. A first mold core mounting groove is opened at the end of the fixed mold away from the first fixing plate. Several first cooling channels are opened through the fixed mold in the horizontal direction. An L-shaped water inlet channel is opened inside the fixed mold at the upper part. An L-shaped water outlet channel is opened inside the fixed mold at the lower part. A first insertion port is opened at the end of the fixed mold at the end of the L-shaped water outlet channel away from the first fixing plate. A first insertion tube is provided at the end of the fixed mold at the end of the fixed mold away from the first fixing plate and at the L-shaped water inlet channel. An air exhaust channel is opened inside the fixed mold at the upper part. The bottom of the air exhaust channel is connected to the L-shaped water inlet channel. Several positioning guide rods are also provided at the end of the fixed mold away from the first fixing plate.

[0007] One side of the moving mold is connected to the second fixed plate. The four corners of the moving mold and the second fixed plate are slidably engaged with the main guide sleeve and the main guide rod respectively. The second fixed plate is located on the side of the moving mold away from the fixed mold. The moving mold has a second mold core mounting groove at the end near the fixed mold. The moving mold is provided with several positioning guide sleeves that cooperate with the positioning guide rods. A water inlet channel is provided at the upper part of the moving mold, and a water outlet channel is provided at the lower part of the moving mold. A second insertion port is provided at the end of the water inlet channel near the fixed mold. The second insertion port corresponds to and is inserted into the first insertion tube. A second insertion tube is provided at the end of the moving mold near the fixed mold and located at the water outlet channel. The second insertion tube corresponds to and is inserted into the first insertion port. Two transverse flow channels are opened through the moving mold. The two transverse flow channels are respectively connected to the inner ends of the water inlet channel and the water outlet channel. Several second cooling channels are opened through the moving mold longitudinally. The second cooling channels are all connected to the two transverse flow channels.

[0008] Preferably, the present invention provides an injection mold frame for automotive exterior parts that uses only a fixed mold to connect cooling pipes, wherein an injection port is provided at the center of the first fixed plate and the fixed mold, and the injection port is connected to the first mold core mounting groove.

[0009] Preferably, the present invention provides an injection mold frame for automotive exterior parts that uses only a fixed mold to connect cooling pipes, wherein the outer ends of the first and second insertion ports are provided with grooves, and the first and second insertion tubes are fitted with high-temperature resistant sealing rings, the high-temperature resistant sealing rings cooperating with the corresponding grooves.

[0010] Preferably, the present invention provides an injection mold base for automotive exterior parts that uses only a fixed mold to connect cooling pipes, wherein the moving mold is provided with sealing heads at both ends of the transverse flow channel and the second cooling channel.

[0011] Preferably, the present invention provides an injection mold frame for automotive exterior parts that uses only a fixed mold to connect cooling pipes, wherein the first cooling channel is disposed between the first fixed plate and the first mold core mounting groove.

[0012] Preferably, the present invention provides an injection mold frame for automotive exterior parts that uses only a fixed mold to connect cooling pipes, wherein the second cooling channel is disposed between the second fixed plate and the second mold core mounting groove.

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

[0014] Both cooling pipes have their inlet and outlet connected to the fixed mold. The coolant from one cooling pipe enters the first cooling channel and cools the fixed mold. After the mold is closed, the other cooling pipe enters from the L-shaped inlet channel and exits from the L-shaped outlet channel. It passes through the first insert pipe into the inlet channel, transverse flow channel, various second cooling channels, and outlet channel of the moving mold, and cools the inside of the moving mold. Compared with the traditional method of connecting the moving mold with pipes, this method does not cause the pipes to move back and forth, which greatly improves the stability of the connection between the cooling pipes and the mold frame. It avoids the situation where the cooling pipes fall off or the sealing performance decreases due to the back and forth movement of the moving mold after long-term use. At the same time, the L-shaped inlet channel is equipped with an air vent, which can completely drain the coolant in the moving mold from the L-shaped outlet channel of the fixed mold before the mold is opened, thus preventing coolant leakage. Attached Figure Description

[0015] Figure 1 This is a side view of the structure of this utility model;

[0016] Figure 2 A schematic diagram of the cross-sectional structure of the fixed mold located at the L-shaped water inlet;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed mold;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the moving mold;

[0019] Figure 5 This is a schematic diagram of the mold-closed state of this utility model.

[0020] In the diagram: 1. Fixed mold; 2. Moving mold; 3. First fixed plate; 4. Main guide rod; 5. First mold core mounting groove; 6. First cooling channel; 7. L-shaped water inlet channel; 8. L-shaped water outlet channel; 9. First insertion port; 10. Air vent channel; 11. Positioning guide rod; 12. Second fixed plate; 13. Main guide sleeve; 14. Second mold core mounting groove; 15. Positioning guide sleeve; 16. Water inlet channel; 17. Water outlet channel; 18. Second insertion port; 19. Second insertion tube; 20. Transverse flow channel; 21. Second cooling channel; 22. Injection port; 23. High-temperature resistant sealing ring; 24. Sealing head; 25. Detailed Implementation

[0021] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: an injection mold base for automotive exterior parts that uses only a fixed mold to connect cooling pipes, including a fixed mold 1 and a moving mold 2;

[0024] A first fixing plate 3 is provided on one side of the fixed mold 1. Four main guide rods 4 are connected to the four corners of the first fixing plate 3 near the fixed mold 1. All four main guide rods 4 pass through the fixed mold 1. A first mold core mounting groove 5 is provided at the end of the fixed mold 1 away from the first fixing plate 3. Several first cooling channels 6 are provided horizontally through the fixed mold 1. An L-shaped water inlet channel 7 is provided inside the fixed mold 1 at the upper part. An L-shaped water outlet channel 8 is provided inside the fixed mold 1 at the lower part. A first insertion port 9 is provided at the end of the fixed mold 1 away from the first fixing plate 3 at the end of the L-shaped water outlet channel 8. The L-shaped water inlet channel 7 is provided with a first insertion tube 10. An air exhaust channel 11 is provided in the upper part of the fixed mold 1. The bottom of the air exhaust channel 11 is connected to the L-shaped water inlet channel 7. Several positioning guide rods 12 are also provided at the end of the fixed mold 1 away from the first fixed plate 3. An injection port 23 is provided at the center of the first fixed plate 3 and the fixed mold 1. The injection port 23 is connected to the first mold core mounting groove 5. Through the cooperation of the injection port 23 and the extruder, the raw material is squeezed into the mold core of the mold. The first cooling channel 6 is provided between the first fixed plate 3 and the first mold core mounting groove 5 to realize the cooling of the mold core in the fixed mold 1.

[0025] One side of the moving mold 2 is connected to the second fixed plate 13. The four corners of the moving mold 2 and the second fixed plate 13 are slidably engaged with the main guide sleeve 14 and the main guide rod 4 respectively. The second fixed plate 13 is located on the side of the moving mold 2 away from the fixed mold 1. The moving mold 2 has a second mold core mounting groove 15 at the end near the fixed mold 1. The moving mold 2 is provided with a number of positioning guide sleeves 16 that cooperate with the positioning guide rod 12. A water inlet channel 17 is provided on the upper part of the moving mold 2, and a water outlet channel 18 is provided on the lower part of the moving mold 2. A second insertion port 19 is provided on the end of the water inlet channel 17 near the fixed mold 1. The second insertion port 19 corresponds to and is inserted into the first insertion tube 10. A second insertion tube 20 is provided on the end of the moving mold 2 near the fixed mold 1 and located at the water outlet channel 18. The second insertion tube 20 corresponds to and is inserted into the first insertion port 9. The outer ends of both the first insertion port 9 and the second insertion port 19 are provided with grooves. The first insertion tube 10 and the second insertion tube 20 are both A high-temperature resistant sealing ring 24 is fitted, which mates with a corresponding groove. The fit of the high-temperature resistant sealing ring 24 ensures the sealing between the first insertion tube 10 and the second insertion port 19, and between the second insertion tube 20 and the first insertion port 9 after mold closing. The moving mold 2 has two transverse flow channels 21, which are connected to the inner ends of the water inlet channel 17 and the water outlet channel 18, respectively. The moving mold 2 has several second cooling channels 22 running through it longitudinally, and each of the second cooling channels 22 is connected to the two transverse flow channels 21. Sealing heads 25 are provided at both ends of the transverse flow channels 21 and the second cooling channels 22 to prevent coolant from leaking out from both ends of the transverse flow channels 21 and the second cooling channels 22. The second cooling channels 22 are located between the second fixed plate 13 and the second mold core mounting groove 15 to achieve cooling of the mold core in the moving mold 2.

[0026] Processing method and operating principle: First, a fixed mold 1 and a moving mold 2 are made. Then, several first cooling channels 6 are opened in the interior of the fixed mold 1 along the horizontal direction. L-shaped water inlet channels 7 and L-shaped water outlet channels 8 are opened in the upper and lower parts of the fixed mold 1, respectively. An air exhaust channel 11 is also opened in the upper part of the fixed mold 1. The bottom of the air exhaust channel 11 is connected to the L-shaped water inlet channel 7. A water inlet channel 17 and a water outlet channel 18 are opened in the upper and lower parts of the moving mold 2. A second inlet 19 is opened at the outer end of the water inlet channel 17, and a first inlet 9 is opened at the outer end of the L-shaped water outlet channel 8. Subsequently, two transverse flow channels 21 are opened laterally on the moving mold 2. These two transverse flow channels 21 are interconnected with the inner ends of the water inlet channel 17 and the water outlet channel 18, respectively. Then, several second cooling channels 22 are opened longitudinally in the moving mold 2. All the second cooling channels 22 are interconnected with the two transverse flow channels 21, thus completing the opening of the internal cooling channels of the fixed mold 1 and the moving mold 2. Next, the high-temperature resistant sealing ring 24 is fitted onto the threaded interface of the first insert tube 10 and the second insert tube 20. The first insert tube 10 is installed on the outer end of the L-shaped water inlet channel 7 by means of thread installation, and the second insert tube 20 is installed on the outer end of the water outlet channel 18 of the moving mold 2 by means of thread installation. Before use, the fixed mold 1 is connected to the main guide rod 4 of the injection molding machine, and the moving mold 2 is slidably engaged with the main guide rod 4 through the main guide sleeve 14. The second fixed plate 13 is connected to the hydraulic cylinder to achieve sliding. Connect the two ends of the first cooling channel 6 to the inlet and outlet pipes of the first pipeline, respectively. Connect the air vent 11 to the air pump. Connect the side of the L-shaped inlet channel 7 to the inlet pipe of the second pipeline. Connect the side of the L-shaped outlet channel 8 to the outlet pipe of the second pipeline. Finally, seal both ends of the transverse flow channel 21 and the second cooling channel 22 with sealing heads 25. The sealing heads 25 can be connected to the corresponding positions of the moving mold 2 by threaded connection. Before use, the two mold cores need to be installed in the first mold core mounting slot 5 and the second mold core mounting slot 15. During use, the moving mold 2 is pushed towards the fixed mold 1 by the hydraulic system to complete the mold closing. At this time, the first insertion tube 10 is inserted into the second insertion port 19 of the moving mold 2, and the second insertion tube 20 is inserted into the first insertion port 9 of the fixed mold 1. Figure 5As shown, the material is extruded from the injection port 23 into the mold cavity composed of two mold cores through the extruder. Then, it is cooled. The coolant in the first pipeline enters the first cooling channel 6, thereby cooling the interior of the fixed mold 1. The coolant in the second pipeline enters the water inlet channel 17 of the moving mold 2 from the L-shaped water inlet channel 7 and the second inlet 19. Then, it enters each of the second cooling channels 22 through the upper transverse flow channel 21. Then, it enters the lower transverse flow channel 21 through the second cooling channel 22. Finally, it enters the L-shaped water outlet channel 8 of the fixed mold 1 through the water outlet channel 18 and the first inlet 9 and is discharged, completing the cooling of the moving mold 2, thereby realizing the cooling and molding of the automotive exterior parts, and cooling the mold at the same time. After the automotive exterior parts are formed and the mold has cooled, the pumps used to control the coolant are shut off, and the air pump is started to drain the coolant from the L-shaped water inlet 7, water inlet channel 17, second cooling channel 22, transverse flow channel 21, water outlet channel 18, and L-shaped water outlet channel 8. Then the mold is opened and the exterior parts are removed, completing the injection molding production of one product. A one-way valve is installed between the air vent 11 and the air pump to prevent coolant from being discharged from the exhaust vent. This utility model has a reasonable structure. The inlet and outlet of the two cooling pipes are connected to the fixed mold 1. The coolant in one cooling pipe enters the first cooling channel 6 and cools the fixed mold 1. After the mold is closed, the other cooling pipe enters from the L-shaped inlet channel 7 and exits from the L-shaped outlet channel 8. It enters the inlet channel 17, transverse flow channel 21, various second cooling channels 22 and outlet channel 18 of the moving mold 2 through the first insertion pipe 10 and cools the inside of the moving mold 2. Compared with the traditional method of connecting the moving mold 2 with pipes, it will not cause the pipes to move back and forth, which greatly improves the stability of the connection between the cooling pipes and the mold frame. It avoids the situation where the cooling pipes fall off or the sealing performance decreases due to the back and forth movement of the moving mold after long-term use. At the same time, the L-shaped inlet channel 7 is bypassed by an air vent 11, which can completely drain the coolant in the moving mold 2 from the L-shaped outlet channel 8 of the fixed mold 1 before the mold is opened, so as to avoid the coolant leakage.

[0027] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0028] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A molding base for automotive exterior parts that uses only a fixed mold to connect cooling pipes, characterized in that: Includes a fixed mold (1) and a moving mold (2); A first fixing plate (3) is provided on one side of the fixed mold (1). A main guide rod (4) is connected to the four corners of the first fixing plate (3) near the fixed mold (1). All the main guide rods (4) pass through the fixed mold (1). A first mold core mounting groove (5) is provided at the end of the fixed mold (1) away from the first fixing plate (3). Several first cooling channels (6) are provided horizontally through the fixed mold (1). An L-shaped water inlet channel (7) is provided inside the fixed mold (1) at the upper part. An L-shaped water inlet channel (7) is provided inside the fixed mold (1) at the lower part. An L-shaped water outlet (8) is provided. The fixed mold (1) is located at the end of the L-shaped water outlet (8) away from the first fixed plate (3) and has a first insertion port (9). The fixed mold (1) is located at the end away from the first fixed plate (3) and in the L-shaped water inlet (7) and has a first insertion tube (10). An air exhaust channel (11) is provided in the upper part of the interior of the fixed mold (1). The bottom of the air exhaust channel (11) is connected to the L-shaped water inlet (7). Several positioning guide rods (12) are also provided at the end of the fixed mold (1) away from the first fixed plate (3). One side of the moving mold (2) is connected to the second fixed plate (13). The four corners of the moving mold (2) and the second fixed plate (13) are slidably engaged with the main guide sleeve (14) and the main guide rod (4) respectively. The second fixed plate (13) is located on the side of the moving mold (2) away from the fixed mold (1). The moving mold (2) has a second mold core mounting groove (15) at the end near the fixed mold (1). The moving mold (2) is provided with a plurality of positioning guide sleeves (16) that cooperate with the positioning guide rod (12). The upper part of the moving mold (2) has a water inlet channel (17), and the lower part of the moving mold (2) has a water outlet channel (18). The water inlet channel (17) has a water outlet channel (18) at the end near the fixed mold (1). The second insertion port (19) corresponds to and is inserted into the first insertion tube (10). The moving mold (2) is provided with a second insertion tube (20) near the fixed mold (1) and located at the water outlet channel (18). The second insertion tube (20) corresponds to and is inserted into the first insertion port (9). The moving mold (2) has two transverse flow channels (21) through it. The two transverse flow channels (21) are respectively connected to the inner ends of the water inlet channel (17) and the water outlet channel (18). The moving mold (2) has several second cooling channels (22) through it in the longitudinal direction. The second cooling channels (22) are all connected to the two transverse flow channels (21).

2. The automotive exterior trim injection mold base that uses only a fixed mold to connect cooling pipes according to claim 1, characterized in that: The first fixing plate (3) and the fixed mold (1) are provided with an injection port (23) at the center position, and the injection port (23) is connected to the first mold core mounting groove (5).

3. The automotive exterior trim injection mold base according to claim 1, which uses only a fixed mold to connect cooling pipes, is characterized in that: The outer ends of the first socket (9) and the second socket (19) are provided with grooves, and the first insertion tube (10) and the second insertion tube (20) are both fitted with high-temperature resistant sealing rings (24), which are matched with the corresponding grooves.

4. The automotive exterior trim injection mold base that uses only a fixed mold to connect cooling pipes according to claim 1, characterized in that: The moving mold (2) is equipped with sealing heads (25) at both ends of the transverse flow channel (21) and the second cooling channel (22).

5. The automotive exterior trim injection mold base that uses only a fixed mold to connect cooling pipes according to claim 1, characterized in that: The first cooling channel (6) is located between the first fixed plate (3) and the first mold core mounting groove (5).

6. The automotive exterior part injection mold base that uses only a fixed mold to connect cooling pipes according to claim 1, characterized in that: The second cooling channel (22) is located between the second fixing plate (13) and the second mold core mounting slot (15).

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