Forming die for thin-wall product with deep rib position

Abstract

The utility model provides a forming die for a thin-wall product with a deep rib position, which comprises an upper die and a lower die which are matched with each other, the lower die comprises a lower die bottom plate, a sliding block seat and a sliding block, the sliding block seat and the sliding block are arranged on the lower die bottom plate from bottom to top, an ejector pin plate is arranged between the sliding block seat and the sliding block, an ejector pin assembly is arranged on the ejector pin plate, and the ejector pin assembly is arranged on the lower die bottom plate. The ejector pin assembly extends from the ejector pin plate to the product direction, penetrates through the sliding block and abuts against the product rib position. The ejector pin assembly has the advantages that the ejector pin plate and the sliding block are combined and matched with the ejector pin and the inclined ejector, so that the ejector pin assembly is more stable in movement process and high in practicability during overall demolding, and compared with an existing structural mode, the ejector pin assembly is higher in product forming efficiency and convenient to maintain, and the forming cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding, and in particular relates to a molding mold for a thin-wall product with deep ribs. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, precise product size, easy product replacement, and the ability to form parts with complex shapes. Injection molding has been widely used in more and more processing fields. However, in actual applications, it has been found that for some products with many ribs in the molding glue position, deep ribs and large structures, during molding and demolding, problems such as unstable product production process and difficulty in demolding often occur. The reason is that the existing molds of this type usually use inclined guide columns to drive the slider, and add auxiliary ejector pins to the slider locally. However, due to the large product structure, it is impossible to add ejector structures to all areas of the product. During demolding, it is easy to cause the product to stick to the slider, resulting in difficulty in demolding. Utility Model Content

[0003] The utility model provides a molding die for a thin-walled product with deep ribs, which realizes smooth molding of the product, is not prone to adhesion with a slide block during demoulding, and improves molding efficiency.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A forming die for a thin-walled product with deep ribs comprises an upper die and a lower die which cooperate with each other, wherein the lower die comprises a lower die bottom plate and a slider seat and a slider which are arranged on the lower die bottom plate from bottom to top, an ejector plate is arranged between the slider seat and the slider, an ejector plate is arranged with an ejector assembly, and the ejector assembly extends from the ejector plate toward the product direction, passes through the slider and abuts against the ribs of the product.

[0006] Preferably, the ejector pin assembly comprises an ejector pin and an inclined ejector pin.

[0007] Preferably, the slider seat is connected to a cylinder via a cylinder slider connecting block.

[0008] Preferably, limit position components are provided on both sides of the lower mold.

[0009] Preferably, the limiting assembly includes a slider strip arranged on both sides of the slider seat and the slider, a pin plate limiting block is arranged on one side of the slider strip, an pin plate buckle machine is arranged on the outer side of the pin plate limiting block, the lower end of the pin plate buckle machine is connected to the slider seat, and the side of the pin plate is slidably connected to the pin plate connecting block.

[0010] Preferably, the ejector plate is placed in the ejector plate limit block and the ejector plate buckle machine through the ejector plate connecting block, the upper end face of the ejector plate connecting block is arranged in an inclined surface, and the inner upper end face inclined surface of the ejector plate buckle machine matches the upper end face inclined surface of the ejector plate connecting block.

[0011] The beneficial effects of the utility model are as follows: the utility model combines the ejector plate and the slider, and cooperates with the ejector and the inclined ejector, so that the movement process of the ejector assembly during the overall demoulding is more stable and practical. Compared with the existing structural method, the product molding efficiency of the utility model is higher, the maintenance is convenient, and the molding cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 : A three-dimensional structural schematic diagram of the lower mold part of the utility model.

[0014] Figure 2 : A schematic diagram of the structure of the utility model after the hidden part of the structure.

[0015] Figure 3 : A schematic structural diagram of another viewing angle of the hidden part structure of the utility model.

[0016] Figure 4 : An enlarged schematic diagram of the limit assembly part of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following Figure 1-Figure 4 It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] The utility model provides a forming die for a thin-walled product with deep ribs, which is the same as the existing forming die, and includes an upper die and a lower die that cooperate with each other. The fundamental difference between the utility model and the prior art lies in the partial structure of the lower die.

[0019] Furthermore, the lower mold includes a lower mold bottom plate and a slider seat 1 and a slider 2 arranged on the lower mold bottom plate from bottom to top, an ejector plate 3 is arranged between the slider seat 1 and the slider 2, and an ejector assembly is arranged on the ejector plate 3, and the ejector assembly extends from the ejector plate 3 to the product 11 through the slider 2 and abuts against the rib position of the product. The product targeted by the utility model has a deep rib position 13 and a bracket 12 opening structure, and the ejector assembly includes an ejector 71 and an inclined ejector 72. The end of the ejector 71 will abut against the deep rib position 13, and the end of the inclined ejector 72 will abut against the bracket 12, so as to facilitate the core pulling action at the opening.

[0020] The slider seat 1 is connected to an oil cylinder 8 through an oil cylinder slider connecting block 9. Limiting components are arranged on both sides of the lower mold. The limiting components include a slider pressure strip 4 arranged on both sides of the slider seat 1 and the slider 2, a side of the slider pressure strip 4 is provided with an ejector plate limiting block 5, an ejector plate buckle machine 6 is arranged on the outer side of the ejector plate limiting block 5, and the lower end of the ejector plate buckle machine 6 is connected to the slider seat 1, and the side of the ejector plate 3 is slidably connected to the ejector plate connecting block 31, and the ejector plate connecting block 31 can be slidably connected to the ejector plate 3 through a spring, that is, when the ejector plate connecting block 31 is subjected to external force, it will retract into the ejector plate 3.

[0021] The ejector plate 3 is placed in the ejector plate limit block 5 and the ejector plate buckle machine 6 through the ejector plate connecting block 31. Specifically, one side of the ejector plate limit block 5 and the ejector plate buckle machine 6 is provided with a concave opening, the concave opening faces the ejector plate, and the ejector plate connecting block 31 is placed in the concave opening of the ejector plate limit block 5 and the ejector plate buckle machine 6.

[0022] The upper end surface 32 of the ejector plate connecting block 31 is arranged in an inclined surface, and the inner upper end surface inclined surface 61 of the ejector plate buckle machine 6 matches the upper end surface inclined surface of the ejector plate connecting block 31 .

[0023] In order to better understand the demoulding process of the utility model, the demoulding process after mold opening is performed as follows:

[0024] The injection molding method of the utility model is the same as that of the prior art, where the molten material enters the mold from the injection port for injection molding. After completion, the upper and lower molds are opened. During the mold opening action, the oil cylinder 8 drives the slider seat 1 to move toward the slider 2 through the oil cylinder slider connection block 9. At this time, the ejector plate 3 and the ejector plate limit block 5 remain fixed, that is, a relative movement between the ejector plate 3 and the slider 2 is formed. When the ejector plate 3 moves to the concave opening upper end face inclined surface 61 of the ejector plate buckle 6, the upper end face inclined surface 61 will abut against the upper end face 32 of the ejector plate connection block 31, driving the ejector plate connection block 31 to retract toward the inner side of the ejector plate, and the ejector plate 3 will be separated from the ejector plate limit block 5 and continue to move upward. The oil cylinder continues to move, driving the ejector assembly to protrude outside the slider 2, completing the separation between the product and the slider 2, and finally realizing the entire demoulding process.

[0025] Finally, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A forming mold for thin-walled products with deep ribs, characterized in that: It comprises an upper and a lower die which cooperate with each other, the lower die comprises a lower die bottom plate and a slider seat and a slider which are arranged on the lower die bottom plate from bottom to top, an ejector plate is arranged between the slider seat and the slider, an ejector assembly is arranged on the ejector plate, and the ejector assembly extends from the ejector plate toward the product direction, passes through the slider and abuts against the product rib position.

2. The forming die for a thin-walled product with deep ribs as claimed in claim 1, characterized in that: The ejector pin assembly comprises an ejector pin and an inclined ejector pin.

3. The forming die for a thin-walled product with deep ribs as claimed in claim 2, characterized in that: The slide block seat is connected with an oil cylinder via an oil cylinder slide block connecting block.

4. The forming die for a thin-walled product with deep ribs as claimed in claim 1, characterized in that: Limiting components are arranged on both sides of the lower mold.

5. The forming die for a thin-walled product with deep ribs as claimed in claim 4, characterized in that: The limiting assembly includes a slider strip arranged on both sides of the slider seat and the slider, a pin plate limiting block is arranged on one side of the slider strip, an pin plate buckle machine is arranged on the outer side of the pin plate limiting block, the lower end of the pin plate buckle machine is connected to the slider seat, and the side of the pin plate is slidably connected to the pin plate connecting block.

6. The forming die for a thin-walled product with deep ribs as claimed in claim 5, characterized in that: The ejector plate is placed in the ejector plate limiting block and the ejector plate buckle machine through the ejector plate connecting block. The upper end surface of the ejector plate connecting block is arranged in an inclined surface. The inner upper end surface inclined surface of the ejector plate buckle machine matches the upper end surface inclined surface of the ejector plate connecting block.

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