Circulating cooling car lamp injection mold cooling mechanism

Abstract

The utility model discloses a circulating cooling car lamp injection mold cooling mechanism, which relates to the field of injection molds, and is characterized in that a support plate is mounted in a base, a cooling box is mounted on the upper surface of the support plate, a first cooling block is mounted above the base, and a first mold plate is mounted above the first cooling block; hydraulic rods are installed on the two side faces of the first mold plate, and the lower surfaces of the hydraulic rods are fixedly connected with the base. According to the circulating cooling car lamp injection mold cooling mechanism, a hydraulic rod moves up and down to drive a trigger rod connected with a second cooling block, when the trigger rod moves downwards to touch the two ends of an extrusion plate, the extrusion plate moves downwards synchronously, a spring is pressed, and meanwhile the middle part extrudes a cooling box; as the first cooling S pipe and the second cooling S pipe are connected in series through the connecting pipe, cooling liquid upwards reaches the interiors of the second cooling block and the first cooling block along the connecting pipe due to extrusion, and the functions of circulating cooling and automatically circulating back to the extrusion cooling box after forming are achieved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a circulating cooling mechanism for automotive lamp injection molds. Background Technology

[0002] Injection molding is an important production method for plastic parts and is applicable to almost all aspects of plastic components. However, there is a common problem in the production process: for plastic production, the cooling process after heating and entering the mold and molding usually takes a long time, and a cooling mechanism is needed to accelerate the cooling process.

[0003] The existing technology has an overly simplistic design for the overlapping molding part of the mold. After a long working time, gaps and burrs will appear in the overlapping mold, which will have a significant impact on production efficiency.

[0004] To overcome the above-mentioned shortcomings, the prior art (application number: CN116461142A, application date:

[0005] A Chinese patent dated April 3, 2023, discloses a stamping die cooling mechanism, comprising a base plate, a first cooling box, and a second cooling box. Both the first and second cooling boxes are vertically mounted on the top of the base plate. A hollow plate and a strip-shaped box are horizontally mounted at both ends of the top of the base plate, respectively. Multiple heat sinks are horizontally mounted on the top of both the first and second cooling boxes, evenly distributed on their respective tops. The strip-shaped box is equipped with a cooling mechanism for cooling the multiple heat sinks. A spiral tube is also mounted on the top of the base plate, located between the hollow plate and the first cooling box. When the internal temperature of the second cooling box becomes too high, the invention closes the second and fourth solenoid valves while simultaneously opening the first and third solenoid valves, repeating this process sequentially. This further improves the heat dissipation effect on the die, thereby enhancing the practicality of the device.

[0006] While existing technologies can solve the above problems, it is difficult to remove the finished product after cooling, especially irregular components. In existing injection molding mechanisms with top and bottom assembly, the removal of irregular components is mostly done manually, which reduces the removal efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a circulating cooling mechanism for automotive headlight injection molds, in order to solve the problem mentioned in the background art that it is difficult to remove irregular components after cooling. Existing injection molding mechanisms with upper and lower closing modes mostly require manual removal of irregular components, which is inefficient and wastes manpower.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a circulating cooling mechanism for automotive headlight injection molds, comprising a support plate installed inside a base, a cooling box installed on the upper surface of the support plate, a first cooling block installed above the base, a first template installed above the first cooling block, hydraulic rods installed on both sides of the first template, the lower surfaces of the hydraulic rods being fixedly connected to the base, a second template installed on the upper surface of the hydraulic rods, a second cooling block installed above the second template, and a device for generating cooling current above the cooling box. A pressurized extrusion circulation cooling mechanism includes a limiting frame. The limiting frame is installed above the support plate, and a spring is installed inside the limiting frame. An extrusion plate is installed above the spring, and a trigger rod is installed above the extrusion plate. The lower part of the trigger rod corresponds to the position of the extrusion plate, and a second inner groove is opened at the corresponding position on the base. A connecting pipe is installed at the rear of the cooling box, and the connecting pipe is connected to a first cooling block and a second cooling block respectively. A first cooling S-tube and a second cooling S-tube are installed inside the first cooling block and the second cooling block respectively.

[0009] A trigger rod is installed below the second cooling block, and a forming mold engagement and ejection mechanism is installed below the trigger rod.

[0010] Furthermore, the engagement ejection mechanism includes a first gear rod, which is installed below the trigger rod, and a transmission gear is installed above the first gear rod, and a second gear rod is installed above the transmission gear. A rotating plate is connected to the end of the second gear rod.

[0011] Furthermore, the bottom of the first template is provided with a first inner groove, and the rotating plate passes through the first inner groove. The rotating plate is rotatably connected to the two inner sides of the first inner groove, and the first gear rod and the second gear rod mesh during the movement.

[0012] Furthermore, the trigger rod forms an elastic structure by contacting the upper surface of the spring through the lower surface of the compression plate, and the lower surface of the spring forms an elastic structure with the bottom of the mounting groove of the limiting frame.

[0013] Furthermore, the outer surface of the first gear rod contacts the outer surface of the second gear rod to form a meshing structure, and the first gear rod contacts the rotating plate through the end of the second gear rod to form a meshing rotation structure.

[0014] Furthermore, the second cooling S-tube, the first cooling S-tube, and the connecting pipe are designed as a single unit, and the second cooling block is fixedly connected to the second template, and the first cooling block is fixedly connected to the first template.

[0015] Furthermore, the trigger rod, the first gear rod, and the second gear rod are symmetrically placed about the center of the base, and the second inner groove is opened directly below the trigger rod, corresponding to the left and right sides of the extrusion plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the cooling mechanism of the car headlight injection mold with circulating cooling uses the up and down movement of the hydraulic rod to drive the trigger rod connected to the second cooling block. After the trigger rod moves down through the second inner groove, it touches the two ends of the extrusion plate. The extrusion plate moves down synchronously, compressing the spring. At the same time, the middle part extrudes the cooling box downward. Since the connecting pipe connects the first cooling S-tube and the second cooling S-tube in series, the coolant will reach the interior of the second cooling block and the first cooling block due to extrusion. This achieves the function of circulating cooling and automatically circulating back to the extrusion cooling box after molding.

[0017] Furthermore, as the hydraulic rod rises upward, the first gear rod on the outer side of the trigger rod touches the transmission gear, and then the transmission gear drives the second gear rod to mesh, causing the rotating plate fixed to the second gear rod to lift upward along the first inner groove, thus lifting the finished product. This design facilitates the manual removal of goods from the mold, and the delivery process is completed directly during the movement of the hydraulic rod.

[0018] Furthermore, after the cooling box is squeezed, the coolant inside the box is transported along the connecting pipe to the interior of the first cooling S-tube and the second cooling S-tube. Since the second cooling S-tube and the first cooling S-tube are tightly attached to the surface of the second cooling block and the first cooling block, the forming mold inside the first template and the second template is quickly cooled. This design only requires the up and down movement of the hydraulic rod to achieve the effect of cold circulation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the second cooling block of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the hydraulic rod of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the first cooling S-tube of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the second inner groove of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the rotating plate of this utility model;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the limiting frame of this utility model.

[0025] In the diagram: 1. Base; 2. Support plate; 3. First cooling block; 4. First template; 5. Cooling box; 6. Hydraulic rod; 7. Trigger rod; 8. First gear rod; 9. Second gear rod; 10. Second cooling block; 11. Second template; 12. Extrusion plate; 13. Limiting frame; 14. Spring; 15. First cooling S-tube; 16. Connecting pipe; 17. Second cooling S-tube; 18. First inner groove; 19. Second inner groove; 20. Rotating plate; 21. Transmission gear. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figure 1-6 The present invention provides the following technical solution: a circulating cooling mechanism for automotive lamp injection molds, comprising a base 1, a support plate 2, and a transmission gear 21.

[0028] A support plate 2 is installed inside the base 1, and a cooling box 5 is installed on the upper surface of the support plate 2. A first cooling block 3 is installed above the base 1, and a first template 4 is installed above the first cooling block 3. Hydraulic rods 6 are installed on both sides of the first template 4, and the lower surface of the hydraulic rods 6 is fixedly connected to the base 1. A second template 11 is installed on the upper surface of the hydraulic rods 6, and a second cooling block 10 is installed above the second template 11. A compression circulation cooling mechanism that pressurizes the cooling box 5 is installed above the cooling box 5. The compression circulation cooling mechanism includes a limit frame 13. A limit frame 13 is installed above the support plate 2, and a spring 14 is installed inside the limit frame 13. A compression plate 12 is installed above the spring 14, and a trigger rod 7 is installed above the compression plate 12. The lower part of the trigger rod 7 corresponds to the position of the compression plate 12, and a second inner groove 19 is opened at the corresponding position on the base 1. A connecting pipe 16 is installed behind the cooling box 5, and the connecting pipe 16 is connected to the first cooling block 3 and the second cooling block 10 respectively. A first cooling S-tube 15 and a second cooling S-tube 17 are installed inside the first cooling block 3 and the second cooling block 10 respectively.

[0029] A trigger rod 7 is installed below the second cooling block 10, and a forming mold engagement and ejection mechanism is installed below the trigger rod 7.

[0030] like Figure 3 , Figure 4 , Figure 6The technical solution shown discloses the following to solve the problem of automatic circulating cooling of the cooling material: the trigger rod 7 forms an elastic structure by contacting the lower surface of the extrusion plate 12 with the upper surface of the spring 14, and the lower surface of the spring 14 forms an elastic structure with the bottom of the mounting groove of the limit frame 13; the second cooling S-tube 17, the first cooling S-tube 15, and the connecting pipe 16 are integrated into one piece; the second cooling block 10 is fixedly connected to the second template 11; the first cooling block 3 is fixedly connected to the first template 4; the trigger rod 7, the first gear rod 8, and the second gear rod 9 are symmetrically placed about the center position of the base 1; and the second inner groove 19 is opened directly below the trigger rod 7, corresponding to the left and right sides of the extrusion plate 12.

[0031] After the headlight injection molding material is injected into the first template 4 placed on the base 1, the hydraulic rod 6 is activated to move downwards until the second cooling block 10 above completely overlaps the second template 11 connected below with the first template 4 along the moving direction of the hydraulic rod 6. During the movement, the trigger rod 7 installed in the middle of the hydraulic rod 6 passes through the second inner groove 19 and contacts the extrusion plate 12. Since the cooling box 5 is connected to the support plate 2, the extrusion plate 12 continuously extrudes the cooling box 5 downwards, and the cooling material in the cooling box 5 is transmitted along the connecting pipe 16 installed at the rear into the first cooling S-tube 15 and the second cooling S-tube 17, so that the second cooling block 10 and the first cooling block 3 produce a cooling effect, completing the cooling of the molding die. After completion, the spring 14 lifts the extrusion plate 12, and the coolant returns to the interior of the cooling box 5 to complete the circulation.

[0032] like Figure 1 , Figure 2 , Figure 5 The technical solution shown discloses the following to address the problem of irregular product removal after cooling: A meshing ejection mechanism includes a first gear rod 8, which is mounted below the trigger rod 7. A transmission gear 21 is mounted above the first gear rod 8, and a second gear rod 9 is mounted above the transmission gear 21. A rotating plate 20 is connected to the end of the second gear rod 9. A first inner groove 18 is formed at the bottom of the first template 4, and the rotating plate 20 passes through the first inner groove 18. The rotating plate 20 is rotatably connected to the two inner sides of the first inner groove 18. The first gear rod 8 and the second gear rod 9 mesh during movement.

[0033] After the molding process is completed, the hydraulic rod 6 is lifted upward, which drives the trigger rod 7 to lift synchronously. The first gear rod 8 at the end of the trigger rod 7 contacts the transmission gear 21 and produces a meshing motion. The other side of the synchronous transmission gear 21 also meshes with the second gear rod 9. After the second gear rod 9 produces a meshing motion, because the two sides of the rotating plate 20 are rotatably connected to the two sides inside the first inner groove 18, the second gear rod 9 lifts the rotating plate 20 fixed on the surface upward along the first inner groove 18 opened on the surface of the first template 4. At the same time, it lifts the finished product, achieving the function of not requiring manual delivery.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A circulating cooling mechanism for automotive lamp injection molds, comprising: Base (1), support plate (2) and transmission gear (21); The base (1) is characterized by having a support plate (2) installed inside, a cooling box (5) installed on the upper surface of the support plate (2), a first cooling block (3) installed above the base (1), a first template (4) installed above the first cooling block (3), hydraulic rods (6) installed on both sides of the first template (4), and the lower surface of the hydraulic rods (6) fixedly connected to the base (1), a second template (11) installed on the upper surface of the hydraulic rods (6), a second cooling block (10) installed above the second template (11), and a compression circulation cooling mechanism for pressurizing the cooling box (5) installed above the cooling box (5), the compression circulation cooling mechanism including a limit frame (13). A limit frame (13) is installed above the support plate (2), and a spring (14) is installed inside the limit frame (13). A pressing plate (12) is installed above the spring (14), and a trigger rod (7) is installed above the pressing plate (12). The lower part of the trigger rod (7) corresponds to the position of the pressing plate (12), and a second inner groove (19) is opened in the corresponding position on the base (1). A connecting pipe (16) is installed behind the cooling box (5), and the connecting pipe (16) is connected to the first cooling block (3) and the second cooling block (10) respectively. A first cooling S-tube (15) and a second cooling S-tube (17) are installed inside the first cooling block (3) and the second cooling block (10) respectively. A trigger rod (7) is installed below the second cooling block (10), and a forming mold engagement ejection mechanism is installed below the trigger rod (7).

2. The circulating cooling mechanism for automotive lamp injection molds according to claim 1, characterized in that: The engagement ejection mechanism includes a first gear rod (8), the first gear rod (8) is installed below the trigger rod (7), and a transmission gear (21) is installed above the first gear rod (8), and a second gear rod (9) is installed above the transmission gear (21), with a rotating plate (20) connected to the end of the second gear rod (9).

3. The circulating cooling mechanism for automotive headlight injection molds according to claim 2, characterized in that: The bottom of the first template (4) is provided with a first inner groove (18), and the rotating plate (20) passes through the first inner groove (18). The rotating plate (20) is rotatably connected to the two sides inside the first inner groove (18), and the first gear rod (8) and the second gear rod (9) mesh during the movement.

4. The circulating cooling mechanism for automotive lamp injection molds according to claim 1, characterized in that: The trigger rod (7) forms an elastic structure by contacting the lower surface of the compression plate (12) with the upper surface of the spring (14), and the lower surface of the spring (14) forms an elastic structure with the bottom of the mounting groove of the limit frame (13).

5. The circulating cooling mechanism for automotive headlight injection molds according to claim 2, characterized in that: The first gear rod (8) forms a meshing structure by contacting the outer surface of the transmission gear (21) with the outer surface of the second gear rod (9), and the transmission gear (21) forms a meshing rotation structure by contacting the rotating plate (20) through the end of the second gear rod (9).

6. The circulating cooling mechanism for automotive lamp injection molds according to claim 1, characterized in that: The second cooling S-tube (17) is integrated with the first cooling S-tube (15) and the connecting pipe (16), and the second cooling block (10) is fixedly connected with the second template (11), and the first cooling block (3) is fixedly connected with the first template (4).

7. The circulating cooling mechanism for automotive lamp injection molds according to claim 1, characterized in that: The trigger rod (7), the first gear rod (8), and the second gear rod (9) are symmetrically placed about the center of the base (1). The second inner groove (19) is opened directly below the trigger rod (7) and corresponds to the left and right sides of the extrusion plate (12).

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