An injection mold for wave-breaking plates of fuel vehicles

Abstract

The utility model discloses an injection mold for a wave-breaking plate of a fuel vehicle, comprising an upper mold base, a lower mold base, an upper mold plate, a lower mold plate, an upper mold core and a lower mold core, a first ejector plate is arranged between the lower mold base and the lower mold plate, a second ejector plate is arranged between the upper mold base and the upper mold plate, and also comprises a plurality of groups of second ejector plate driving mechanisms, the second ejector plate driving mechanisms comprising a hook plate arranged on the side surface of the upper mold base, a pull plate arranged on the side surface of the lower mold plate and a slider arranged horizontally and slidably on the side surface of the second ejector plate, the top of the pull plate is provided with a first protrusion extending toward one side of the upper mold base, the outer side of the bottom of the slider is provided with a first inclined surface, the inner side of the side surface of the hook plate is provided with a second protrusion, and the second protrusion is provided with a second inclined surface matched with the first inclined surface, the utility model is provided with upper and lower front and rear mold double ejection mechanisms, the rear mold is conventionally ejected, and the second ejector plate added to the front mold can eject the product from above the product through the second ejector plate driving mechanism, thereby improving the quality of demoulding.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to an injection mold for a wave-breaking plate of a fuel vehicle. Background Art

[0002] With the rapid development of the automobile industry and the increasing market demand, the performance and quality of fuel vehicle anti-wave plates, as an important part of the automobile fuel tank system, are directly related to the safety and reliability of the vehicle. Fuel vehicle anti-wave plates usually have thin walls and deep cavities, which makes them face many challenges during the injection molding process, especially during the demolding process.

[0003] Traditional fuel vehicle anti-wave plate injection molds usually use a single ejector mechanism for demoulding. However, due to the complex structure of the anti-wave plate and the large demoulding resistance, a single ejector mechanism is difficult to ensure smooth demoulding of the product, which often leads to product deformation, damage and other problems, thus affecting the quality and service life of the product.

[0004] In the current injection mold design on the market, the upper mold base and the lower mold base are generally used in conjunction with the upper mold core and the lower mold core for injection molding. Although this structure can meet the demoulding requirements of general products to a certain extent, its demoulding effect is not ideal for thin-walled, deep-cavity fuel vehicle anti-wave plates. When demoulding, traditional molds usually rely on the ejector plate of the lower mold for ejection. Due to the lack of effective support and ejection on the upper surface of the product, it often causes incomplete demoulding or surface damage.

[0005] In order to improve the demoulding quality of the wave-breaking plate for fuel vehicles, it is necessary to develop an injection mold that can provide a more uniform and stable ejection force during the demoulding process. In the prior art, although there are ways to improve the demoulding effect by increasing the number of ejection mechanisms or improving the structure of the ejection mechanisms, these improvement schemes still have certain limitations and cannot completely solve the demoulding problem of thin-walled and deep-cavity products. Utility Model Content

[0006] In order to solve the above problems, the utility model provides an injection mold for a wave-breaking plate of a fuel vehicle, which aims to achieve effective ejection of the upper surface of the product by setting a double ejection mechanism of the front and rear molds of the upper and lower molds, especially adding a second ejector plate driving mechanism, thereby further improving the demolding quality, ensuring that the product is not damaged during the demolding process, and improving the molding quality and production efficiency of the product.

[0007] The technical solution provided by the utility model is as follows:

[0008] An injection mold for a fuel vehicle wave-breaking plate, comprising an upper mold base, a lower mold base, an upper mold plate, a lower mold plate, an upper mold core and a lower mold core, a first ejector plate is provided between the lower mold base and the lower mold plate, and a second ejector plate is provided between the upper mold base and the upper mold plate;

[0009] It also includes a plurality of sets of second ejector plate driving mechanisms, which include a hook plate arranged on the side of the upper mold base, a pull plate arranged on the side of the lower mold base, and a slider arranged horizontally on the side of the second ejector plate, the top of the pull plate has a first protrusion extending toward one side of the upper mold base, the bottom of the slider has a first inclined surface on the outside, the inner side of the hook plate side is provided with a second protrusion, and the second protrusion is provided with a second inclined surface matching the first inclined surface;

[0010] The lower end of the first protrusion contacts the upper part of the slider, and the first protrusion limits the second ejector plate to move upward with the upper die seat. When the first inclined surface on the slider contacts the second inclined surface, the slider slides toward the inside of the second ejector plate.

[0011] In some embodiments, a horizontal slide groove is opened on the side of the second ejector plate, and the slider is limited in the slide groove by a screw. The length of the slide groove is equal to the length of the slider. When the slider contacts the end of the screw, the slider protrudes from the side of the second ejector plate.

[0012] In some embodiments, a spring is provided between the slider and the inner wall of the slide groove.

[0013] In some embodiments, a slide rail is provided on the inner side of the pull plate, and the hook plate is slidably disposed in the slide rail.

[0014] In some embodiments, a third inclined surface matching the first inclined surface is provided at the inner top of the first protrusion.

[0015] In summary, the beneficial effects of the utility model are as follows:

[0016] (1) The utility model is provided with a double ejection mechanism for the front and rear molds. The rear mold is conventionally ejected. Through the second ejector plate driving mechanism, the second ejector plate added to the front mold can eject the product from above the product, thereby improving the demoulding quality.

[0017] (2) The slide rail of the utility model limits the hook plate in the horizontal direction, and the hook plate, the pull plate and the slide block are in the same vertical plane, thereby ensuring the accuracy of the hook plate pushing the slide block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the second ejector plate driving mechanism of the utility model;

[0022] Figure 5This is a schematic diagram of the pull plate structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the hook plate structure of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the slider of the utility model;

[0025] Figure 8 for Figure 2 Enlarged view of point A in the middle;

[0026] Fig. 9 This is a schematic diagram of the structure of the mold injection product of the utility model.

[0027] The reference numerals are as follows:

[0028] 1. Upper die base; 2. Lower die base; 3. Upper die plate; 4. Lower die plate; 5. Upper die core; 6. Lower die core; 7. First ejector plate; 8. Second ejector plate; 9. Second ejector plate driving mechanism; 10. Product.

[0029] 81. slide groove; 82. screw; 83. spring;

[0030] 91. Hook plate; 92. Pull plate; 93. Sliding block; 94. First protrusion; 95. First inclined surface; 96. Second protrusion; 97. Second inclined surface; 98. Sliding rail; 99. Third inclined surface. DETAILED DESCRIPTION

[0031] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0032] like Figure 1-9 As shown, a fuel vehicle anti-wave plate injection mold mainly includes an upper mold base 1, a lower mold base 2, an upper mold plate 3, a lower mold plate 4, an upper mold core 5 and a lower mold core 6, wherein the upper mold base 1, the upper mold plate 3 and the upper mold core 5 move synchronously, the lower mold base 2, the lower mold plate 4 and the lower mold core 6 are fixed, and the product 10 is formed between the upper mold core 5 and the lower mold core 6. The product 10 has the characteristics of thin wall and depth. A second ejector plate 8 is provided between the upper mold base 1 and the upper mold plate 3, and a second ejector plate 8 is provided between the lower mold base 2 and the lower mold plate 4. The first ejector plate 7 has a gap between the upper die base 1 and the upper die plate 3 for the second ejector plate 8 to move up and down along the guide column, and a gap between the lower die base 2 and the lower die plate 4 for the first ejector plate 7 to move up and down along the guide column. An ejector is provided on the upper end surface of the first ejector plate 7. The first ejector plate 7 moves from bottom to top and ejects the product 10 from the lower die core 6 through the ejector. The lower end surface of the second ejector plate 8 has a downward ejector. The second ejector plate 8 moves from top to bottom and ejects the product 10 from the upper die core 5 through the ejector.

[0033] The first ejector plate 7 is driven to rise and fall by the ejection cylinder at the bottom of the injection molding machine. When the mold is opened, the driving mechanism pulls the upper mold base 1 upward, and the front mold and the rear mold move relative to each other. The second ejector plate 8 is driven by the second ejector plate driving mechanism 9 to descend relative to the upper mold plate 3, and the product 10 is ejected from the upper mold core 5.

[0034] Specifically, the second ejector plate driving mechanism 9 is arranged on both sides of the mold. Several groups can be arranged according to the size of the mold. In the present embodiment, four groups are arranged. Each group of the second ejector plate driving mechanism 9 includes a hook plate 91, a pull plate 92 and a slider 93. The upper end of the hook plate 91 is fixed to the side of the upper mold base 1 by screws, and the lower end of the hook plate 91 is provided with a second protrusion 96 on the side close to the second ejector plate 8. The lower end of the pull plate 92 is fixed to the side of the lower mold plate 4 by screws. The top of the pull plate 92 has a first protrusion 94 extending toward the side of the upper mold base 1. The slider 93 is horizontally slidably arranged on the side of the second ejector plate 8. The lower end surface of the first protrusion 94 is in contact with the upper surface of the slider 93. The first protrusion 94 limits the second ejector plate 8 to follow the upper mold base 1 to move upward within a certain stroke. The outer side of the bottom of the slider 93 has a first inclined surface 95, and the second protrusion 96 is provided with a second inclined surface 97 cooperating with the first inclined surface 95.

[0035] When opening the mold, the driving mechanism pulls the upper mold base 1 to move upward, and the hook plate 91 moves upward with the upper mold base 1. Since the pull plate 91 limits the upward movement of the second ejector plate 8, the ejector on the second ejector plate 8 moves downward relative to the upper mold plate 3 and the upper mold core 5, and the product 10 can be ejected from above the product 10. The upper mold base 1 continues to move upward until the first inclined surface 95 on the slider 93 contacts the second inclined surface 97, and the hook plate 91 pushes the slider 93 to slide inwardly of the second ejector plate 8. At this time, the slider 93 and the pull plate 91 no longer interfere with each other, and the mold opening can continue. While opening the mold, the ejector cylinder at the top of the injection molding machine continues to lift the first ejector plate 7 to eject the product 10 from below the product 10.

[0036] The utility model is provided with upper and lower front and rear mold double ejection mechanisms, the rear mold is conventionally ejected, and the second ejector plate 8 added to the front mold can eject the product 10 from above the product 10 through the second ejector plate driving mechanism 9, thereby improving the demoulding quality.

[0037] In a preferred embodiment, a horizontal slide groove 81 is opened on the side of the second ejector plate 8, and the slide 93 is limited in the slide groove 81 by a screw 82. The length of the slide groove 81 is equal to the length of the slider 93. When the slider 93 contacts the end of the screw 82, the slider 93 protrudes from the side of the second ejector plate 8.

[0038] Specifically, the screw 82 passes through the slider 93, and the slider 93 is fixed on the second ejector plate 8. The slider 93 can slide freely on the screw 82. The length of the slide groove 81 is equal to the length of the slider 93, so that the slider 93 can be completely embedded in the second ejector plate 8. In order to realize the automatic resetting of the slider 93, a spring 83 is provided between the slider 93 and the inner wall of the slide groove 81.

[0039] As another further optimized embodiment, a slide rail 98 is provided inside the pull plate 92, and the hook plate 91 is slidably arranged in the slide rail 98. The slide rail 98 limits the hook plate 91 in the horizontal direction, and the hook plate 91, the pull plate 92, and the slide block 93 are in the same vertical plane, ensuring the accuracy of the hook plate 91 pushing the slide block 93.

[0040] Furthermore, a third inclined surface 99 is provided on the top of the inner side of the first protrusion 94 to cooperate with the first inclined surface 95. When the mold is closed, the third inclined surface 99 on the pull plate 92 contacts the first inclined surface 95 on the slider 93, and pushes the slider 93 to slide inside the second ejector plate 8 until the slider 93 moves to the bottom of the first protrusion 94, and the slider 93 pops out under the action of the spring 83. At this time, the mold is closed, and the upper end surface of the slider 93 contacts the lower end surface of the first protrusion 94.

[0041] It should be noted that the implementation methods not shown or described in the drawings or the text of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each element and method are not limited to the various specific structures, shapes or methods mentioned in the embodiments.

[0042] It should also be noted that this document may provide demonstrations of parameters containing specific values, but these parameters do not need to be exactly equal to the corresponding values, but can be approximated to the corresponding values ​​within an acceptable error tolerance or design constraint. Directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", etc., are only referenced to the directions of the drawings and are not intended to limit the scope of protection of this application.

[0043] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An injection mold for a fuel vehicle wave-breaking plate, characterized in that: It comprises an upper die base (1), a lower die base (2), an upper mold plate (3), a lower mold plate (4), an upper mold core (5) and a lower mold core (6); a first ejector plate (7) is provided between the lower die base (2) and the lower mold plate (4); and a second ejector plate (8) is provided between the upper die base (1) and the upper mold plate (3); It also includes a plurality of groups of second ejector plate drive mechanisms (9), the second ejector plate drive mechanisms (9) including a hook plate (91) arranged on the side of the upper die base (1), a pull plate (92) arranged on the side of the lower die plate (4), and a slider (93) arranged on the side of the second ejector plate (8) for horizontal sliding, the pull plate (92) having a first protrusion (94) extending toward one side of the upper die base (1) on the top, the slider (93) having a first inclined surface (95) on the outer side of the bottom, the hook plate (91) having a second protrusion (96) on the inner side, and the second protrusion (96) having a second inclined surface (97) matching the first inclined surface (95); The lower end of the first protrusion (94) abuts against the upper part of the slider (93), and the first protrusion (94) limits the second ejector plate (8) from moving upward following the upper mold base (1). When the first inclined surface (95) on the slider (93) abuts against the second inclined surface (97), the slider (93) slides toward the inside of the second ejector plate (8).

2. The injection mold for the wave-breaking plate of a fuel vehicle according to claim 1, characterized in that: A horizontal slide groove (81) is opened on the side of the second ejector plate (8), and the slider (93) is limited in the slide groove (81) by a screw (82). The length of the slide groove (81) is equal to the length of the slider (93). When the slider (93) contacts the end of the screw (82), the slider (93) protrudes from the side of the second ejector plate (8).

3. The injection mold for the wave-breaking plate of a fuel vehicle according to claim 2, characterized in that: A spring (83) is provided between the sliding block (93) and the inner wall of the sliding groove (81).

4. The injection mold for the wave-breaking plate of a fuel vehicle according to claim 1, characterized in that: A slide rail (98) is provided on the inner side of the pull plate (92), and the hook plate (91) is slidably arranged in the slide rail (98).

5. The injection mold for the wave-breaking plate of a fuel vehicle according to claim 4, characterized in that: A third inclined surface (99) matching with the first inclined surface (95) is provided at the inner top of the first protrusion (94).

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