Lightweight intake manifold injection mold structure

Abstract

The utility model is applicable to the technical field of intake manifold injection molds, and particularly relates to a lightweight intake manifold injection mold structure, which comprises a fixed mold fixing plate and a movable mold fixing plate, a hot runner plate is connected to the outer side of the fixed mold fixing plate, and an upper mold plate is connected to the surface of the hot runner plate. According to the utility model, the main runner hot nozzle, the splitter plate, the first needle valve hot nozzle, the second needle valve hot nozzle, the third needle valve hot nozzle, the fourth needle valve hot nozzle, the integrated interface, the hot runner junction box and the time controller are arranged, so that the opening and closing time of each needle valve hot nozzle can be accurately and automatically controlled in the injection molding process of an upper shell product and a lower shell product; according to the light intake manifold injection mold structure, the upper shell product and the lower shell product which are subjected to actual injection molding can meet performance requirements, the size is relatively stable, the injection molding defect that the injection molding quality is affected due to the fact that the gram weight difference of the upper shell product and the lower shell product in a mold is large is overcome, and therefore the application range of the light intake manifold injection mold structure is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of intake manifold injection molds, in particular to a lightweight intake manifold injection mold structure. Background Art

[0002] The intake manifold is an important part of the automobile engine. Its main function is to evenly distribute air to each cylinder to ensure the normal operation and optimal performance of the engine. In recent years, with the rapid development of the automobile industry and increasingly stringent environmental regulations, the demand for lightweight intake manifolds has become increasingly urgent. Traditional intake manifolds are usually made of cast iron or aluminum alloy materials. Although these materials have good mechanical properties, they are heavy and not conducive to the lightweight design of the entire vehicle. Therefore, the use of high-strength, lightweight materials, such as plastics, has become a trend.

[0003] In order to meet this demand, the injection molding process of the intake manifold came into being. However, the existing intake manifold injection mold structure has some technical defects in practical applications, mainly manifested as follows: during the injection molding process of the upper shell and lower shell products, the opening and closing time of each needle valve hot nozzle is difficult to accurately control, resulting in unstable dimensions of the injection molded products. In particular, when there is a difference in weight between the upper shell and the lower shell products, injection molding quality defects are prone to occur, such as product deformation, dimensional deviation, etc., affecting the performance and reliability of the product. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a lightweight intake manifold injection mold structure, aiming to solve the technical problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lightweight intake manifold injection mold structure, comprising a fixed mold fixing plate and a movable mold fixing plate, and the outer side of the fixed mold fixing plate is connected to a hot runner plate, the surface of the hot runner plate is connected to an upper mold plate, the outer side of the movable mold fixing plate is connected to a support iron, and the outer side of the support iron is connected to a lower mold plate, the lower surface of the upper mold plate and the upper surface of the lower mold plate are connected to each other, a hot runner junction box is installed on the side of the hot runner plate, an integrated interface is provided on the side of the hot runner plate, and a time controller is installed on the side of the hot runner plate away from the integrated interface, a fixing hole is opened on the surface of the fixed mold fixing plate, and a positioning ring is connected inside the fixing hole, and a main runner hot nozzle is connected outside the positioning ring, a diverter plate is provided inside the hot runner plate, and the four sides of the outer side of the diverter plate are respectively connected to a first needle valve hot nozzle, a second needle valve hot nozzle, a third needle valve hot nozzle and a fourth needle valve hot nozzle;

[0007] The surface of the upper mold plate is connected with the upper shell fixed mold core and the lower shell fixed mold core, and the surface of the lower shell fixed mold core is provided with a lower shell mold core insert, and the surface of the lower mold plate is connected with the lower shell movable mold core and the upper shell movable mold core;

[0008] The side of the lower template is connected to a cylinder seat, and a cylinder is installed on the surface of the cylinder seat, the surface of the lower template is slidably connected to a slider seat, and the side of the slider seat is connected to a manifold flange surface slider, the side of the manifold flange surface slider is fixedly connected to a plurality of circular air inlet inserts and square air inlet inserts, and the plurality of circular air inlet inserts and square air inlet inserts are alternately distributed on the side of the manifold flange surface slider in sequence.

[0009] Furthermore, the end of the main channel hot nozzle away from the positioning ring is detachably connected to the diverter plate by means of a threaded connection, and the ends of the first needle valve hot nozzle, the second needle valve hot nozzle, the third needle valve hot nozzle and the fourth needle valve hot nozzle away from the lower template are all detachably connected to the diverter plate by means of a threaded connection.

[0010] Furthermore, the surface of the lower template is provided with an air inlet flange slider, a lower shell welding flange inverted slider, a lower shell mounting column slider and an upper shell mounting column slider, and the outer side of the lower template is provided with a plurality of positioning strips for limiting the positions of the air inlet flange slider, the lower shell welding flange inverted slider, the lower shell mounting column slider and the upper shell mounting column slider.

[0011] Furthermore, two guide strips and two guide blocks are provided on the surface of the lower template near the oil cylinder, and the guide strips and guide blocks are used to limit the movement trajectory of the slider seat and the slider on the manifold flange surface.

[0012] Furthermore, an oil pressure station interface is provided on the outer side of the integrated interface.

[0013] Furthermore, the outer sides of the circular air inlet insert and the lower shell mold core insert are provided with mutually matching positioning features.

[0014] Furthermore, a shovel base is provided on the surface of the lower template, and the shovel base is used to limit the position of the slider seat and the manifold flange surface slider.

[0015] Furthermore, a guide groove is provided on the surface of the lower template, and the slider seat is slidably connected inside the guide groove.

[0016] The utility model provides a lightweight intake manifold injection mold structure, which has the following beneficial effects:

[0017] By arranging the main channel hot nozzle, the diverter plate, the first needle valve hot nozzle, the second needle valve hot nozzle, the third needle valve hot nozzle, the fourth needle valve hot nozzle, the integrated interface, the hot runner junction box and the time controller, during the injection molding process of the upper shell product and the lower shell product, the opening and closing time of each needle valve hot nozzle can be accurately and automatically controlled, so that the upper shell product and the lower shell product actually injected can meet the performance requirements and have relatively stable dimensions, avoiding injection defects that affect the injection molding quality due to the large difference in gram weight between the upper shell product and the lower shell product in the mold, thereby improving the scope of application of the lightweight intake manifold injection mold structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The schematic diagram of the structure of a lightweight intake manifold injection mold structure.

[0019] Figure 2 The present invention is a structural schematic diagram of a fixed mold plate, a hot runner plate, an upper mold plate and various components mounted on the upper mold plate in a lightweight intake manifold injection mold structure.

[0020] Figure 3 The present invention is a structural schematic diagram of a movable mold fixing plate, a supporting iron, a lower mold plate and various components mounted on the lower mold plate in a lightweight intake manifold injection mold structure.

[0021] Figure 4 The schematic diagram is a structural diagram of a cylinder, a cylinder seat, a slider seat, a manifold flange slider, a circular intake duct insert and a square intake duct insert in a lightweight intake manifold injection mold structure.

[0022] Figure 5 This is a structural schematic diagram of a main channel hot nozzle, a splitter plate, an upper shell product, a lower shell product and four needle valve hot nozzles in a lightweight intake manifold injection mold structure.

[0023] Figure 6 The schematic diagram is a structural diagram of a lower shell core insert and a circular intake duct insert in a lightweight intake manifold injection mold structure.

[0024] Figure 7 A front cross-sectional view of a lightweight intake manifold injection mold structure.

[0025] In the figure: 1. Fixed mold plate; 2. Hot runner plate; 3. Upper mold plate; 4. Lower mold plate; 5. Support iron; 6. Moving mold plate; 7. Integrated interface; 8. Hot runner junction box; 9. Upper shell fixed mold core; 10. Lower shell mold core insert; 11. Shovel base; 12. Lower shell fixed mold core; 13. Manifold flange surface slider; 14. Cylinder; 15. Cylinder seat; 16. Slider seat; 17. Inlet flange slider; 18. Lower shell welding flange undercut slider; 19. Lower shell moving mold core ; 20. Lower shell mounting column slider; 21. Upper shell mounting column slider; 22. Upper shell movable mold core; 23. Guide block; 24. Guide pressure strip; 25. Round air inlet insert; 26. Square air inlet insert; 27. Positioning ring; 28. Main channel hot nozzle; 29. ​​Diverter plate; 30. First needle valve hot nozzle; 31. Second needle valve hot nozzle; 32. Third needle valve hot nozzle; 33. Fourth needle valve hot nozzle; 34. Upper shell product; 35. Lower shell product; 36. Time controller. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0028] like Figure 1-Figure 7 As shown, a lightweight intake manifold injection mold structure provided by an embodiment of the utility model includes a fixed mold fixing plate 1 and a movable mold fixing plate 6, and the outer side of the fixed mold fixing plate 1 is connected to a hot runner plate 2, the surface of the hot runner plate 2 is connected to an upper mold plate 3, the outer side of the movable mold fixing plate 6 is connected to a support iron 5, and the outer side of the support iron 5 is connected to a lower mold plate 4, the lower surface of the upper mold plate 3 and the upper surface of the lower mold plate 4 are connected to each other, and the above technical features are mature existing technologies, which are technical solutions that are not difficult to obtain or think of by those skilled in the art, and those skilled in the art can make corresponding adjustments and selections based on the above technical solutions;

[0029] A hot runner junction box 8 is installed on the side of the hot runner plate 2, an integrated interface 7 is provided on the side of the hot runner plate 2, and a time controller 36 is installed on the side of the hot runner plate 2 away from the integrated interface 7. A fixing hole is opened on the surface of the fixed mold fixed plate 1, and a positioning ring 27 is connected inside the fixing hole, and a main runner hot nozzle 28 is connected to the outside of the positioning ring 27. A diverter plate 29 is provided inside the hot runner plate 2, and the four sides of the outer side of the diverter plate 29 are respectively connected to the first needle valve hot nozzle 30, the second needle valve hot nozzle 31, the third needle valve hot nozzle 32 and the fourth needle valve hot nozzle 33. An oil pressure station interface is provided on the outer side of the integrated interface 7, and the main runner hot nozzle 28, the first needle valve hot nozzle 30, the second needle valve hot nozzle 31, the third needle valve hot nozzle 32 and the fourth needle valve hot nozzle 33 are fixedly arranged in the mold through the diverter plate 29;

[0030] The surface of the upper mold plate 3 is connected with the upper shell fixed mold core 9 and the lower shell fixed mold core 12, and the surface of the lower shell fixed mold core 12 is provided with the lower shell mold core insert 10, and the surface of the lower mold plate 4 is connected with the lower shell movable mold core 19 and the upper shell movable mold core 22;

[0031] The side of the lower template 4 is connected with a cylinder seat 15, and the surface of the cylinder seat 15 is installed with a cylinder 14, the surface of the lower template 4 is slidably connected with a slider seat 16, the surface of the lower template 4 is provided with a guide slot, and the slider seat 16 is slidably connected inside the guide slot, and the side of the slider seat 16 is connected with a manifold flange surface slider 13, and the side of the manifold flange surface slider 13 is fixedly connected with a plurality of circular air inlet inserts 25 and square air inlet inserts 26, and the plurality of circular air inlet inserts 25 and square air inlet inserts 26 are alternately distributed on the side of the manifold flange surface slider 13 in sequence;

[0032] The surface of the lower template 4 is provided with an air inlet flange slider 17, a lower shell welding flange undercut slider 18, a lower shell mounting column slider 20 and an upper shell mounting column slider 21, and the outer side of the lower template 4 is provided with a plurality of positioning strips for limiting the positions of the air inlet flange slider 17, the lower shell welding flange undercut slider 18, the lower shell mounting column slider 20 and the upper shell mounting column slider 21, and the surface of the lower template 4 is provided with a shovel base 11, and the shovel base 11 is used to limit the positions of the slider seat 16 and the manifold flange surface slider 13.

[0033] In one embodiment of the utility model, the entire workflow of the technical solution of the present application is roughly as follows: before the upper mold plate 3 and the lower mold plate 4 are molded together, the oil cylinder 14 drives the slider seat 16 to perform a linear reset motion, thereby driving the manifold flange surface slider 13 fixed thereon to mold together with the lower shell mold core insert 10;

[0034] After the slider seat 16 and the manifold flange surface slider 13 are reset, the upper mold plate 3 and the lower mold plate 4 begin to close the mold, and during the closing process, the air inlet flange slider 17, the lower shell welding flange undercut slider 18, the lower shell mounting column slider 20 and the upper shell mounting column slider 21 are driven by the inclined guide column fixed on the upper mold plate 3 to perform a reset movement;

[0035] After the upper mold plate 3 and the lower mold plate 4 are molded together, the shovel base 11 fixed on the upper mold plate 3 can compress and lock the position of the slider seat 16 and the manifold flange surface slider 13 to avoid the technical defect that the slider seat 16 and the manifold flange surface slider 13 retreat due to the impact of the high injection pressure during injection molding, thereby improving the product dimensional accuracy;

[0036] After the upper mold plate 3 and the lower mold plate 4 are precisely molded, the injection molding operation of the upper shell product 34 and the lower shell product 35 can be started. At this time, the external injection molding machine nozzle is connected to the main channel hot nozzle 28. The injection molding machine nozzle is used to inject the plastic melt in the screw into the main channel hot nozzle 28, and the plastic melt injected into the main channel hot nozzle 28 will flow into the first needle valve hot nozzle 30, the second needle valve hot nozzle 31, the third needle valve hot nozzle 32 and the fourth needle valve hot nozzle 33 through the diverter plate 29. In this process, the injection molding staff controls the opening sequence of each needle valve hot nozzle valve needle through the time controller 36, so as to fill the upper shell product 34 and the lower shell product 35 according to the set requirements;

[0037] The needle valve nozzle is connected to the oil pressure station through the oil pressure station interface on the integrated interface 7, so that the oil pressure station provides the driving force for opening and closing each needle valve nozzle. The heating system of the hot runner in the hot runner plate 2 is connected to the external temperature control box through the hot runner junction box 8, so that the temperature of the hot runner system can be automatically and accurately controlled and monitored;

[0038] Through multiple mold flow analyses by technicians in this field, it can be determined that the opening time of the second needle valve hot nozzle 31 and the third needle valve hot nozzle 32 are 3 seconds and 2.8 seconds respectively, the opening time of the first needle valve hot nozzle 30 and the diverter plate 29 is 0 second, and the closing time is set to automatically close after the pressure holding ends. The actual injection molded upper shell product 34 and lower shell product 35 can meet the performance requirements, have relatively stable dimensions, and have no obvious injection molding defects.

[0039] Preferably, the end of the main channel hot nozzle 28 away from the positioning ring 27 is detachably connected to the diverter plate 29 by means of a threaded connection, and the ends of the first needle valve hot nozzle 30, the second needle valve hot nozzle 31, the third needle valve hot nozzle 32 and the fourth needle valve hot nozzle 33 away from the lower template 4 are detachably connected to the diverter plate 29 by means of a threaded connection, thereby improving the convenience of disassembly and assembly between the first needle valve hot nozzle 30, the second needle valve hot nozzle 31, the third needle valve hot nozzle 32 and the fourth needle valve hot nozzle 33 and the lower template 4.

[0040] Preferably, two guide strips 24 and two guide blocks 23 are provided on the surface of the lower mold plate 4 near the oil cylinder 14. The guide strips 24 and the guide blocks 23 are used to limit the movement trajectory of the slider seat 16 and the manifold flange surface slider 13, so that the movement trajectory of the slider seat 16 and the manifold flange surface slider 13 can be more accurate, avoiding the position deviation of the slider seat 16 and the manifold flange surface slider 13.

[0041] Preferably, the outer sides of the circular air inlet duct insert 25 and the lower shell core insert 10 are provided with mutually matching positioning features, so that during the process of closing the mold between the manifold flange surface slider 13 and the lower shell core insert 10, the closing mold accuracy can be greatly improved by the mutually matching positioning features on the circular air inlet duct insert 25 and the lower shell core insert 10.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lightweight intake manifold injection mold structure, comprising a fixed mold fixing plate (1) and a movable mold fixing plate (6), wherein the outer side of the fixed mold fixing plate (1) is connected to a hot runner plate (2), the surface of the hot runner plate (2) is connected to an upper mold plate (3), the outer side of the movable mold fixing plate (6) is connected to a support iron (5), and the outer side of the support iron (5) is connected to a lower mold plate (4), the lower surface of the upper mold plate (3) and the upper surface of the lower mold plate (4) are connected to each other, characterized in that: A hot runner junction box (8) is installed on the side of the hot runner plate (2), an integrated interface (7) is provided on the side of the hot runner plate (2), and a time controller (36) is installed on the side of the hot runner plate (2) away from the integrated interface (7); a fixing hole is opened on the surface of the fixed mold fixing plate (1), and a positioning ring (27) is connected inside the fixing hole, and the outer side of the positioning ring (27) is connected to the main flow channel hot nozzle (28); a diverter plate (29) is provided inside the hot runner plate (2), and the four sides of the outer side of the diverter plate (29) are respectively connected to a first needle valve hot nozzle (30), a second needle valve hot nozzle (31), a third needle valve hot nozzle (32) and a fourth needle valve hot nozzle (33); The surface of the upper mold plate (3) is connected to an upper shell fixed mold core (9) and a lower shell fixed mold core (12), and the surface of the lower shell fixed mold core (12) is provided with a lower shell mold core insert (10), and the surface of the lower mold plate (4) is connected to a lower shell movable mold core (19) and an upper shell movable mold core (22); The side of the lower template (4) is connected to a cylinder seat (15), and the surface of the cylinder seat (15) is installed with a cylinder (14); the surface of the lower template (4) is slidably connected to a slider seat (16), and the side of the slider seat (16) is connected to a manifold flange surface slider (13); the side of the manifold flange surface slider (13) is fixedly connected to a plurality of circular air inlet inserts (25) and square air inlet inserts (26), and the plurality of circular air inlet inserts (25) and square air inlet inserts (26) are alternately distributed on the side of the manifold flange surface slider (13).

2. A lightweight intake manifold injection mold structure according to claim 1, characterized in that: The end of the main channel hot nozzle (28) away from the positioning ring (27) is detachably connected to the diverter plate (29) by means of a threaded connection, and the ends of the first needle valve hot nozzle (30), the second needle valve hot nozzle (31), the third needle valve hot nozzle (32) and the fourth needle valve hot nozzle (33) away from the lower mold plate (4) are detachably connected to the diverter plate (29) by means of a threaded connection.

3. The lightweight intake manifold injection mold structure according to claim 1, characterized in that: The surface of the lower template (4) is provided with an air inlet flange slider (17), a lower shell welding flange undercut slider (18), a lower shell mounting column slider (20) and an upper shell mounting column slider (21), and the outer side of the lower template (4) is provided with a plurality of positioning strips for limiting the positions of the air inlet flange slider (17), the lower shell welding flange undercut slider (18), the lower shell mounting column slider (20) and the upper shell mounting column slider (21).

4. The lightweight intake manifold injection mold structure according to claim 1, characterized in that: Two guide strips (24) and two guide blocks (23) are arranged on the surface of the lower template (4) near the oil cylinder (14), and the guide strips (24) and the guide blocks (23) are used to limit the movement trajectory of the slider seat (16) and the manifold flange surface slider (13).

5. The lightweight intake manifold injection mold structure according to claim 1, characterized in that: An oil pressure station interface is arranged on the outer side of the integrated interface (7).

6. The lightweight intake manifold injection mold structure according to claim 1, characterized in that: The outer sides of the circular air inlet insert (25) and the lower shell mold core insert (10) are provided with mutually matching positioning features.

7. The lightweight intake manifold injection mold structure according to claim 1, characterized in that: A shovel base (11) is provided on the surface of the lower template (4), and the shovel base (11) is used to define the positions of the slider seat (16) and the manifold flange surface slider (13).

8. The lightweight intake manifold injection mold structure according to claim 1, characterized in that: A guide slot is provided on the surface of the lower template (4), and a slider seat (16) is slidably connected inside the guide slot.

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