Injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold, which comprises a movable mold plate and a fixed mold plate, a cavity is formed between the movable mold plate and the fixed mold plate, a pouring gate is arranged at the upper end of the movable mold plate and is communicated with the cavity, and two groups of slide components transversely extend inwards from one end of the fixed mold plate. The slide assembly comprises a direct-acting piece, a linkage piece, a driven piece, a guide block and a supporting block, the upper end of the direct-acting piece is connected with the movable mold plate, one end of the linkage piece is limited in the movable mold plate, the other end of the linkage piece obliquely extends into the driven piece from top to bottom, and the guide block is obliquely arranged on the fixed mold plate. The linkage piece drives the driven piece to slide in the direction of the guide block, and a first ejector pin stretching into the cavity is arranged at the end, close to the inner side, of the driven piece so that the first ejector pin can stretch into or be pulled out of the driven piece. A supporting block is arranged at the tail end of the guide block to limit sliding-out of the driven piece. And an ejection device is further arranged at the lower end of the fixed mold plate and used for ejecting a formed part out.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to an injection mold. Background Art

[0002] In the field of injection molding technology, injection molds are key equipment for producing plastic products, and their design is directly related to the product's production efficiency, quality, and cost. Traditional injection molds typically consist of a movable mold plate and a fixed mold plate. When the two are combined, a cavity is formed. Molten plastic is injected through a pouring port, and after cooling and solidification, the plastic product of the desired shape is obtained. However, in the production of plastic products with complex structures, the mold demolding process often becomes a key link that restricts production efficiency. In particular, when the product has deep cavities, fine pores, or complex internal structures, traditional mold mechanisms cannot guarantee the integrity and surface quality of the product, and are prone to problems such as strain and deformation. Utility Model Content

[0003] The purpose of the utility model is to provide an injection mold, aiming to solve the above technical problems in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides an injection mold, comprising a movable template and a fixed template, wherein a cavity is formed between the movable template and the fixed template, and a pouring port is provided at the upper end of the movable template, which is connected to the cavity, and two sets of sliding components extend laterally inward from one end of the fixed template. The sliding component comprises a linear member, a linkage member, a follower, a guide block and a support block. The upper end of the linear member is connected to the movable template, one end of the linkage member is limited in the movable template, and the other end extends obliquely from top to bottom into the follower, and the guide block is obliquely arranged on the fixed template. Through the up and down movement of the linear member, the linkage member drives the follower to slide in the direction of the guide block, and the end of the follower close to the inner side is provided with a first ejector extending into the cavity to insert or remove the first ejector therefrom. A support block is provided at the end of the guide block to limit the follower from sliding out. The lower end of the fixed template is also provided with an ejection device for ejecting the molded part.

[0005] Furthermore, a convex groove with the same slope as the guide block extends into the fixed template, a fixing clamp is provided on the upper side of the convex groove, and extension parts extend from both ends of the follower, and the extension parts slide between the fixing clamp and the convex groove.

[0006] Furthermore, the lower part of the support block abuts between the guide blocks and extends upward to form two connecting clamping rods, a gap is provided between the two connecting clamping rods, and a connecting column is fixed to the lower end of the guide block, and the connecting column moves in the gap.

[0007] Further, the ejection device comprises a support plate, a second ejector pin and an extension column, the support plate is arranged on the lower side of the fixed mold plate, one end of the second ejector pin and the extension column are arranged on the support plate, the other end of the second ejector pin extends into the cavity, and the other end of the extension column is used for extending into the cavity and surrounding the second ejector pin and is used for cooperating with the forming cavity.

[0008] Further, the bottom end of the fixed mold plate is provided with a support frame with a cavity, the support plate is arranged in the support frame, and the end of the support frame is provided with a driving assembly, and the driving end of the driving assembly is connected with the support plate to drive the support plate to move up and down.

[0009] Further, the corners of the movable mold plate and the fixed mold plate are provided with telescopic guide columns.

[0010] Further, the other end of the fixed mold plate is also provided with two groups of row position assemblies, and the row position assemblies are symmetrically arranged in pairs.

[0011] Further, a plurality of longitudinal and transverse cooling pipes are arranged in the fixed mold plate and are used for uniformly cooling the cavity.

[0012] The above one or more technical solutions in the injection mold provided by the embodiment of the utility model have at least one of the following technical effects:

[0013] In the design, the movable mold plate and the fixed mold plate are closed to form a closed cavity. The molten plastic is injected into the cavity through the pouring opening. The plastic is cooled and solidified in the cavity to form a plastic product. The mold is opened, the movable mold plate is lifted, and the direct acting element is moved upward. The linkage member pushes the driven member to slide along the guide block in the direction due to the lever effect, the first ejector pin extends into the cavity, contacts and supports the formed part. With the continuous opening of the mold, the linkage member reversely pushes the driven member to slide along the guide block in the reverse direction, so that the first ejector pin is pulled out, and the support block limits the sliding of the guide block, the ejection device is started, and the row position assembly is used together to open the mold smoothly and take out the formed part. Through the precise design of the row position assembly, the formed part is precisely ejected, the demolding efficiency is significantly improved, and the damage of the product in the demolding process is reduced. ACCURATE DESCRIPTION

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor.

[0015] Fig. 1 The overall structure schematic diagram of the injection mold is provided for the embodiment of the utility model.

[0016] Fig. 2A sectional view of the injection mold is provided for the embodiment of the utility model;

[0017] Fig. 3 A partial view of the row position assembly of the injection mold is provided for the embodiment of the utility model;

[0018] In the drawings, various reference signs indicate:

[0019] 100, movable mold plate; 110, fixed mold plate; 120, cavity; 130, pouring opening;

[0020] 200, row position assembly; 210, direct acting element; 220, linkage; 230, driven element; 240, guide block; 250, support block; 260, first thimble; 270, convex groove; 271, fixed clamp; 272, extension; 280, connecting clamp rod; 281, connecting column;

[0021] 300, ejection device; 310, support plate; 320, second thimble; 330, top extension column; 340, support frame; 350, driving assembly;

[0022] 400, guide column; 410, cooling pipeline. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the 1-3 drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The following will be described by referring to the drawings Figs. 1-3 The described embodiments are exemplary and are intended to explain the embodiments of the utility model, and cannot be understood as a limitation of the utility model.

[0024] In the description of the embodiments of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0025] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0026] In the embodiments of the utility model, unless there are explicit provisions and limitations, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the embodiments of the utility model can be understood according of specific circumstances.

[0027] In an embodiment of the utility model, provide a kind of injection mold, including movable die plate 100 and fixed die plate 110, movable die plate 100 and fixed die plate 110 become cavity 120 between, the upper end of movable die plate 100 is provided with pouring opening 130, pouring opening 130 is communicated with cavity 120, and from the end of fixed die plate 110 inwardly extends into two groups of line position assembly 200 transversely.Line position assembly 200 includes straight-moving piece 210, linkage 220, driven piece 230, guide block 240 and support block 250, the upper end of straight-moving piece 210 is connected movable die plate 100, one end of linkage 220 is limited in movable die plate 100, the other end is obliquely extended into driven piece 230 from top to bottom, guide block 240 is obliquely arranged on fixed die plate 110, by the up-down movement of straight-moving piece 210, linkage 220 drives driven piece 230 to slide along the direction of guide block 240, and the end of driven piece 230 close to the inside is provided with the first ejector pin 260 that extends into cavity 120, to extend into or separate from the first ejector pin 260 from it.The end of guide block 240 is provided with support block 250 to limit driven piece 230 to slide out.The lower end of fixed die plate 110 is also provided with ejection device 300, for forming piece ejection.

[0028] Specifically, movable die plate 100 and fixed die plate 110 are closed, and form closed cavity 120.Melted plastic is injected into cavity 120 through pouring opening 130.Plastic is cooled and solidified in cavity 120 to form a plastic product.The mold is opened, movable die plate 100 rises, and drives straight-moving piece 210 to move upward.Linkage 220 pushes driven piece 230 to slide along the direction of guide block 240 due to lever effect, and the first ejector pin 260 extends into cavity 120, contacts and supports the forming piece.As the mold continues to open, linkage 220 pushes driven piece 230 to slide in the opposite direction of guide block 240 in reverse, so that the first ejector pin 260 is extracted, and support block 250 limits the sliding of guide block 240, and ejection device 300 is started, and cooperates with line position assembly 200 to open the mold smoothly and take out the forming piece.Through the precise design of line position assembly 200, the precise ejection of the forming piece is realized, the demolding efficiency is significantly improved, and the damage of the product in the demolding process is reduced.

[0029] Further, the fixed mold plate 110 is provided with a convex groove 270 extending in the same slope direction as the guide block 240, and a fixed clamp 271 is arranged on the upper side of the convex groove 270. The two ends of the follower 230 are provided with an extension 272, and the extension 272 slides between the fixed clamp 271 and the convex groove 270. Specifically, one or more convex grooves 270 are arranged on the fixed mold plate 110 and extend in the same slope direction as the guide block 240. These convex grooves 270 provide precise guidance for the sliding of the follower 230. The slope of the convex groove 270 matches the slope of the guide block 240, ensuring that the follower 230 maintains a stable motion trajectory during sliding. The upper side of the convex groove 270 is provided with a fixed clamp 271 to limit the vertical displacement of the follower 230 and prevent it from jumping out of the convex groove 270 during sliding.

[0030] Further, the lower part of the support block 250 abuts between the guide blocks 240 and extends upward to form two connecting clamps 280 with a gap between them. The lower end of the guide block 240 is fixed with a connecting column 281, which moves in the gap. Specifically, when the mold is opened and closed, the guide block 240 moves along the predetermined trajectory, and the connecting column 281 moves in the gap between the connecting clamps 280. The upper part of the support block 250 has opposite clamping limit parts to prevent the connecting column 281 from escaping. The support block 250 ensures the stability and reliability of the movement of the guide block 240 through the abutment of its lower part and the support of the connecting clamps 280.

[0031] Further, the ejector device 300 includes a support plate 310, a second ejector pin 320, and a top extension column 330. The support plate 310 is arranged on the lower side of the fixed mold plate 110. The top extension column 330 and one end of the second ejector pin 320 are arranged on the support plate 310. The other end of the second ejector pin 320 extends into the cavity 120, and the other end of the top extension column 330 is designed to extend into the cavity 120 and surround the second ejector pin 320 to cooperate with the molding cavity 120. Specifically, one end of the second ejector pin 320 and the top extension column 330 are fixedly arranged on the support plate 310. The other end of the second ejector pin 320 extends into the cavity 120 and directly acts on the injection molded part to eject it from the cavity 120. The other end of the top extension column 330 is designed to extend into the cavity 120 and surround the second ejector pin 320, which not only enhances the uniformity of the ejection force, but also helps to prevent deformation or damage of the injection molded part during ejection.

[0032] Further, the bottom end of the fixed mold plate 110 is provided with a cavity support frame 340, the support plate 310 is arranged in the support frame 340, and the end of the support frame 340 is provided with a driving assembly 350, the driving end of the driving assembly 350 is connected with the support plate 310, so as to drive the support plate 310 to make lifting movement. Specifically, the bottom end of the fixed mold plate 110 is provided with a support frame 340 with a cavity, and the cavity provides mounting space for the support plate 310 and the ejection device 300 thereon. The end of the support frame 340 is provided with a driving assembly 350, which can be a hydraulic cylinder, an air cylinder, an electric push rod or other forms of driving device. The driving end of the driving assembly 350 is connected with the support plate 310, and the lifting movement of the support plate 310 is driven to realize the work of the ejection device 300.

[0033] Further, the corners between the movable mold plate 100 and the fixed mold plate 110 are provided with telescopic guide columns 400. The stability of the mold during opening and closing is ensured.

[0034] Further, the other end of the fixed mold plate 110 is also provided with two groups of row position assemblies 200, and the row position assemblies 200 are symmetrically arranged in pairs. The symmetric arrangement of the row position assemblies 200 helps to reduce the deviation and shaking of the mold during opening and closing. When the movable mold plate 100 moves towards the fixed mold plate 110, the two groups of row position assemblies 200 can simultaneously cooperate with the corresponding parts on the movable mold plate 100, so as to ensure the accurate closing of the mold.

[0035] Further, a plurality of longitudinal and transverse cooling pipes 410 are arranged in the fixed mold plate 110, for uniform cooling of the cavity 120.

[0036] The above only describes the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An injection mold comprising a movable mold plate (100) and a fixed mold plate (110), a mold cavity (120) being formed between the movable mold plate (100) and the fixed mold plate (110), an upper end of the movable mold plate (100) being provided with a pouring opening (130) which communicates with the mold cavity (120), characterized in that, Two groups of row position assemblies (200) are laterally extended from one end of the fixed mold plate (110) inwardly; the row position assembly (200) comprises a direct motion part (210), a linkage part (220), a driven part (230), a guide block (240) and a support block (250), the upper end of the direct motion part (210) is connected to the movable mold plate (100), one end of the linkage part (220) is limited in the movable mold plate (100), the other end is obliquely extended from top to bottom into the driven part (230), the guide block (240) is obliquely arranged on the fixed mold plate (110), through the up-down movement of the direct motion part (210), the linkage part (220) drives the driven part (230) to slide along the direction of the guide block (240), and the end close to the inner side of the driven part (230) is provided with a first ejector pin (260) extended into the cavity (120) to extend or separate the first ejector pin (260) from it; the end of the guide block (240) is provided with the support block (250) to limit the sliding out of the driven part (230); the lower end of the fixed mold plate (110) is also provided with an ejection device (300) for ejecting the molded part.

2. An injection mold according to claim 1, characterized in that The fixed mold plate (110) is provided with a convex groove (270) extending into the fixed mold plate (110) and consistent with the slope of the guide block (240), the upper side of the convex groove (270) is provided with a fixed clamp (271), the two ends of the driven part (230) extend out an extension part (272), the extension part (272) slides between the fixed clamp (271) and the convex groove (270).

3. An injection mold according to claim 2, wherein The lower part of the support block (250) abuts between the guide blocks (240) and extends upwardly to form two connecting clamping rods (280), a gap is provided between the two connecting clamping rods (280), the lower end of the guide block (240) is fixed with a connecting column (281), and the connecting column (281) is movable in the gap.

4. An injection mold according to claim 1, wherein The ejection device (300) comprises a support plate (310), a second ejector pin (320) and a top extension column (330), the support plate (310) is arranged on the lower side of the fixed mold plate (110), one end of the top extension column (330) and the second ejector pin (320) is arranged on the support plate (310), the other end of the second ejector pin (320) extends into the cavity (120), and the other end of the top extension column (330) is used for extending into the cavity (120) and surrounding the second ejector pin (320) to cooperate with the molding of the cavity (120).

5. An injection mold according to claim 4, characterized in that The bottom end of the fixed mold plate (110) is provided with a support frame (340) with a cavity, the support plate (310) is arranged in the support frame (340), and the end of the support frame (340) is provided with a driving assembly (350), the driving end of the driving assembly (350) is connected to the support plate (310) to drive the support plate (310) to move up and down.

6. An injection mold according to claim 1, wherein The corners of the movable mold plate (100) and the fixed mold plate (110) are provided with telescopic guide columns (400).

7. An injection mold according to any one of claims 1-6, characterized in that The other end of the fixed mold plate (110) is also provided with two groups of the row position assemblies (200), and the row position assemblies (200) are symmetrically arranged in pairs.

8. An injection mold according to any one of claims 1-6, characterized in that The fixed mold plate (110) is provided with a plurality of longitudinal and transverse cooling pipes (410) for uniformly cooling the cavity (120).

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