Injection mold for lower cover of fuel collector of fuel tank of fuel vehicle

Abstract

The utility model discloses a fuel vehicle fuel tank oil collector lower cover injection mold which comprises a top plate, a bottom plate, an upper mold plate, a lower mold plate, an upper mold core, a lower mold core and an ejector plate, a mold core is arranged between the upper mold core and the lower mold core, gaps are formed among the upper mold core, the lower mold core and the mold core and used for forming a product, and an oil outlet is formed in the side face of the product. A side sliding block corresponding to the oil port is arranged on the lower die plate, a side core rod is arranged on the side sliding block, an inclined oil cylinder seat is arranged on one side of the lower die plate, an oil cylinder is arranged on the oil cylinder seat, an inclined sliding block is arranged on an output section of the oil cylinder, an inclined core rod is arranged on the inclined sliding block, and the inclined core rod extends into the die cavity and is used for forming an oil inlet of a product. Inclined sliding blocks which move relatively are arranged on the lower die plate and located on the two sides of the inclined core rod, the inclined sliding blocks on the two sides are matched and used for forming external threads of an oil inlet, and high-precision forming of the complex structure of the lower cover of the oil collector is achieved through the reasonably-designed die structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and particularly relates to an injection mold for the lower cover of a fuel tank oil collector of a fuel vehicle. Background Art

[0002] The fuel tank LVS (oil collector) of a fuel vehicle is an important component in the fuel supply system, responsible for transporting fuel from the fuel tank to the engine. As a key part of the oil collector, the lower cover needs to have good pressure resistance and sealing performance, so the processing accuracy requirements for it are relatively high. The traditional manufacturing of the lower cover of the oil collector mostly uses ordinary injection molds. However, during the molding process, there are often problems such as unstable dimensions and insufficient processing accuracy of the oil inlet and outlet, resulting in poor performance of the fuel supply system. In addition, due to the complex shape of the lower cover of the oil collector, it is difficult for traditional molds to effectively control the material flow during the molding process, resulting in more surface defects on the product. Summary of the Utility Model

[0003] To solve the above problems, the utility model provides an injection mold for the lower cover of a fuel tank oil collector of a fuel vehicle, which realizes the high-precision molding of the complex structure of the lower cover of the oil collector through a reasonable mold structure design.

[0004] The technical solution provided by the utility model is as follows:

[0005] An injection mold for the lower cover of a fuel tank oil collector of a fuel vehicle, including a top plate, a bottom plate, an upper template, a lower template, an upper mold core, a lower mold core, and a thimble plate. There is a mold core between the upper mold core and the lower mold core. There is a gap between the upper mold core, the lower mold core, and the mold core for molding the product. The product has an oil outlet on the side. There is a side slider corresponding to the oil port on the lower template, and a side core rod is provided on the side slider;

[0006] One side of the lower template is provided with an inclined oil cylinder seat. An oil cylinder is provided on the oil cylinder seat. The output end of the oil cylinder is provided with an inclined slider, and an inclined core rod is provided on the inclined slider. The inclined core rod extends into the mold cavity for molding the oil inlet of the product;

[0007] On the lower template, there are inclined sliders moving relative to each other on both sides of the inclined core rod. The two inclined sliders cooperate to mold the external thread of the oil inlet.

[0008] In some embodiments, there are several side sliders. A limiting groove is provided on the side slider. The side core rod is fixed on the core rod seat. A limiting portion matching the shape of the limiting groove is provided on the side of the core rod seat away from the side core rod. The side core rod is detachably fixed in the limiting groove through the core rod seat.

[0009] In some embodiments, the mold core is fixed on the lower template, and several water channels are provided inside the mold core.

[0010] In some embodiments, two support plates are provided between the lower template and the bottom plate, and the ejector plate is arranged between the two support plates.

[0011] In some embodiments, a number of feet are provided on the side walls of the upper template, the lower template, and the support plates;

[0012] In some embodiments, a number of lifting lugs are provided on both sides of the lower template.

[0013] In summary, the beneficial effects of the present utility model are as follows:

[0014] (1) Through the reasonable design of the die structure of the present utility model, by using the design of the side slider and the inclined slider, the accurate molding of the oil inlet and the oil outlet is realized, ensuring the sealing performance and pressure resistance of the lower cover of the oil collector.

[0015] (2) The present utility model sets the core rod seat in a detachable mode, and adopts the matching design of the limiting groove and the core rod seat to ensure the stability and detachability of the side core rod. At the same time, the limiting grooves are also arranged at multiple different positions. When molding different products, only by changing the positions of the upper die core, the lower die core, the die core, and the core rod seat, the injection molding of different specifications of products can be realized, improving the versatility of the die.

[0016] (3) A number of water channels in the present utility model are evenly distributed inside the die core, which are used to adjust the temperature of the upper surface of the die core. By accurately controlling the temperature of the die core, the deformation and internal stress of the product can be reduced, and the dimensional stability and surface flatness of the product can be improved. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a cross-sectional structural schematic diagram of the present utility model;

[0019] Figure 3 is an internal structural schematic diagram of the present utility model;

[0020] Figure 4 is a structural schematic diagram of the oil cylinder seat of the present utility model;

[0021] Figure 5 is a structural schematic diagram of the side slider of the present utility model;

[0022] Figure 6 is a structural schematic diagram of the replaced die core of the present utility model;

[0023] Figure 7 is a structural schematic diagram of the product of the present utility model.

[0024] The reference numerals are as follows:

[0025] 1. Top plate; 2. Bottom plate; 3. Upper template; 4. Lower template; 5. Upper die core; 6. Lower die core; 7. Ejector plate; 8. Die core; 9. Product; 10. Side slider; 11. Side core rod; 12. Oil cylinder seat; 13. Oil cylinder; 14. Inclined slider; 15. Inclined core rod; 16. Oil port slider; 17. Limit groove; 18. Core rod seat; 20. Support plate; 21. Standing foot; 22. Lifting lug; 901. Oil outlet; 902. Oil inlet. Detailed implementation mode

[0026] To deepen the understanding of the present utility model, the present utility model will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.

[0027] As Figure 1-7 shown, an injection mold for the lower cover of a fuel collector of a fuel vehicle mainly includes a top plate 1, an upper template 3, an upper die core 5, a lower die core 6, a lower template 4 and a bottom plate 2 arranged in sequence from top to bottom. There are two support plates 20 between the lower template 4 and the bottom plate 2. The ejector plate 7 is arranged between the two support plates 20. When the mold is opened, the ejector pins on the ejector plate 7 push the product 9 from bottom to top. The upper die core 5 and the lower die core 6 together form the molding cavity of the mold. The die core 8 is located between the upper die core 5 and the lower die core 6 and is fixed on the lower template 4. A precise gap is left between the die core 8 and the upper die core 5 and the lower die core 6 for forming the outer shape and inner cavity of the product 9. Side sliders 10 are arranged on the lower template 4, and side core rods 11 are provided on the side sliders 10. The side core rods 11 reciprocate inside and outside the cavity driven by the side sliders 10 for forming the oil outlet 901 on the side of the product 9.

[0028] On one side of the lower template 4, an inclined oil cylinder seat 12 is provided. The oil cylinder 13 is installed on the oil cylinder seat 12, and its piston rod is mechanically linked to connect the inclined slider 14. An inclined core rod 15 is installed on the inclined slider 14, and the inclined core rod 15 extends into the mold cavity for forming the oil inlet 902 of the product 9. The inclined slider 14 slides along the inclined guide rail to make the inclined core rod 15 enter or exit the mold cavity. Oil port sliders 16 are located on both sides of the inclined core rod 15. The two oil port sliders 16 on both sides approach or move away simultaneously and cooperate with the inclined core rod 15 to form the external thread of the oil inlet 902. Thus, the formation of the inclined oil inlet 902 is realized.

[0029] In a preferred implementation mode, there are several side sliders 10. Limit grooves 17 are provided on the side sliders 10. The side core rods 11 are fixed on the core rod seats 18. A limiting part matching the shape of the limit grooves 17 is provided on the side of the core rod seat 18 away from the side core rods 11. The side core rods 11 are detachably fixed in the limit grooves 17 through the core rod seats 18.

[0030] The design of the limiting groove 17 precisely controls the position of the side core rod 11, ensuring high precision when forming the oil outlet 901 on the side of the molded product 9. The side slider 10 slides along the lateral guide rail. During the injection molding process, the side core rod 11 extends into the mold cavity to form the oil outlet 901. After the molding is completed, the side slider 10 retreats under the drive of the inclined guide pillar, separating the side core rod 11 from the product, and the product is smoothly demolded. Additionally, the core rod seat 18 is set in a detachable mode. At the same time, the limiting grooves 17 are also set at multiple different positions. When molding different products 9, only the positions of the upper mold core 5, the lower mold core 6, the mold core 8, and the core rod seat 18 need to be replaced to achieve the injection molding of different specifications of products 9, improving the versatility of the mold.

[0031] Furthermore, a number of standing feet 21 are provided on the side walls of the upper template 3, the lower template 4, and the support plate 20, and a number of lifting lugs 22 are provided on both sides of the lower template 4.

[0032] Due to the versatility of the mold in this application, the mold needs to be used frequently and repeatedly. Therefore, by providing the standing feet 21 and the lifting lugs 22, it is convenient for the storage and transportation of the mold.

[0033] As another embodiment of further optimization, the mold core 8 is fixed on the lower template 4, and a number of water channels are provided inside the mold core 8.

[0034] The number of water channels is evenly distributed inside the mold core 8 and is used to adjust the temperature of the upper surface of the mold core 8. By precisely controlling the temperature of the mold core 8, the deformation and internal stress of the product can be reduced, and the dimensional stability and surface flatness of the product can be improved.

[0035] The working principle of the present utility model:

[0036] First, the plastic melt is injected into the molding cavity of the mold through an injection molding machine. At this time, the upper mold core 5 and the lower mold core 6 are closely fitted under the closing force to form a complete mold cavity. The side slider 10, the inclined slider 14, and the oil port slider 16 are in the preset positions at this stage, and the side core rod 11 and the inclined core rod 15 have both extended into the mold cavity.

[0037] The plastic melt enters the mold cavity through the nozzle and fills all the spaces in the mold cavity. Under the effective temperature control of the water channels in the mold core 8, the melt quickly cools and solidifies to form the precise outer shape and inner cavity of the product 9. Due to the action of the side slider 10 and the inclined slider 14, the oil outlet 901 and the oil inlet 902 can be precisely formed.

[0038] After the plastic is cooled and molded, the upper mold core 5 and the lower mold core 6 are separated. The oil cylinder 13 drives the inclined slider 14 to retreat, and the inclined core rod 15 exits the mold cavity. The side slider 10 drives the side core rod 11 to slide laterally, separating the oil outlet 901 from the side core rod 11. Subsequently, the ejector pin plate 7 pushes the ejector pins to eject the product 9 from the mold cavity, completing the demolding operation.

[0039] The injection mold provided by the present utility model can achieve high-precision injection molding of parts with complex geometric shapes on the basis of the conventional mold structure. The modular design makes the mold easy to maintain and replace components, improving production efficiency and product quality.

[0040] It should be noted that in the drawings or the text of the specification, the implementation manners that are not illustrated or described are all forms known to those of ordinary skill in the art and are not described in detail. In addition, the above definitions of each element and method are not limited to the specific structures, shapes or manners mentioned in the embodiments.

[0041] It should also be noted that this article may provide examples of parameters containing specific values, but these parameters do not need to be exactly equal to the corresponding values, but may be approximated to the corresponding values within an acceptable error tolerance or design constraint. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., are only references to the directions in the drawings and are not used to limit the protection scope of this application.

[0042] The above description shows and describes the preferred embodiments of the present utility model. As mentioned above, it should be understood that the present utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in the relevant field. And the changes and variations made by those skilled in the art without departing from the spirit and scope of the present utility model should all be within the protection scope of the appended claims of the present utility model.

Claims

1. An injection mold for the lower cover of the fuel collector of a fuel vehicle, characterized in that It includes a top plate (1), a bottom plate (2), an upper template (3), a lower template (4), an upper mold core (5), a lower mold core (6) and an ejector plate (7). A mold core (8) is provided between the upper mold core (5) and the lower mold core (6). A gap is provided between the upper mold core (5), the lower mold core (6) and the mold core (8) for forming a product (9). The side of the product (9) has an oil outlet (901). A side slider (10) corresponding to the oil outlet (901) is provided on the lower template (4). A side core rod (11) is provided on the side slider (10). An inclined oil cylinder seat (12) is provided on one side of the lower template (4). An oil cylinder (13) is provided on the oil cylinder seat (12). An inclined slider (14) is provided at the output end of the oil cylinder (13). An inclined core rod (15) is provided on the inclined slider (14). The inclined core rod (15) extends into the mold cavity for forming an oil inlet (902) of the product (9). Oil port sliders (16) moving relatively are provided on both sides of the inclined core rod (15) on the lower template (4). The two oil port sliders (16) on both sides cooperate to form an external thread of the oil inlet (902).

2. The injection mold for the lower cover of the fuel collector of a fuel vehicle according to claim 1, wherein, A plurality of side sliders (10) are provided. A limiting groove (17) is provided on the side slider (10). The side core rod (11) is fixed on a core rod seat (18). A limiting portion matching the shape of the limiting groove (17) is provided on one side of the core rod seat (18) away from the side core rod (11). The side core rod (11) is detachably fixed in the limiting groove (17) through the core rod seat (18).

3. The injection mold for the lower cover of the fuel collector of a fuel vehicle according to claim 1, wherein, The mold core (8) is fixed on the lower template (4). A plurality of water channels are provided in the mold core (8).

4. The injection mold for the lower cover of the fuel collector of a fuel vehicle according to claim 1, wherein Two support plates (20) are provided between the lower template (4) and the bottom plate (2). The ejector plate (7) is arranged between the two support plates (20).

5. The injection mold for the lower cover of the fuel collector of a fuel vehicle according to claim 4, characterized in that, A plurality of standing feet (21) are provided on the side walls of the upper template (3), the lower template (4) and the support plates (20).

6. The injection mold for the lower cover of the fuel collector of a fuel vehicle according to claim 5, wherein A plurality of lifting lugs (22) are provided on both sides of the lower template (4).

Images