Injection mold for three-direction sliding block inner core pulling

Abstract

The utility model relates to the technical field of injection molds, and discloses a three-direction sliding block inner core pulling injection mold which comprises an upper mold base, a base is arranged under the upper mold base, a sprue bush used for feeding is fixedly installed at the center of the top face of the upper mold base in a penetrating mode, and the sprue bush is vertically arranged. An upper end opening of the sprue bush is located in a placing hole in the top of the upper die base, an upper base plate is installed at the bottom of the upper die base, and an upper stripping plate is installed at the bottom of the upper base plate; two spacing plates are arranged on the top surface of the base, two ejector pin plates are arranged between the two spacing plates, ejector pins are arranged on the ejector pin plates, and a lower base plate is mounted at the tops of the two spacing plates. The three sliding blocks can flexibly slide in the mold cavity under the guidance of the guide columns, so that three-direction inner core pulling is realized, and a complex structure of a product is conveniently formed; meanwhile, due to the reasonable design of the rear mold core, accurate molding of the product is ensured, and the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a three direction slider core-pulling injection mold. BACKGROUND

[0002] Injection mold is a tool for producing plastic products, through injection molding process, plastic raw materials are injected into the mold, and the desired shape of the product is obtained after cooling and solidification. Injection mold is usually composed of mold body, pouring system, cooling system, ejection system, etc. According to different product requirements, the structure and design of the mold will also be different.

[0003] Injection mold plays an important role in the plastic processing industry, it is a tool matched with plastic forming machine, which gives plastic products complete configuration and accurate size. Injection mold includes multiple parts, such as pouring system, mold closing guide mechanism, forming parts, exhaust mechanism, product pushing and resetting mechanism, side core-pulling mechanism and mold heating or cooling system, etc. These parts work together to ensure the molding quality and production efficiency of plastic products.

[0004] At present, some products have inner reverse buckling, and the inclined ejection is long and thin, which is easy to break, therefore, the inner core-pulling slider is adopted, so that we provide a three direction slider core-pulling injection mold. The three direction slider core-pulling injection mold effectively improves the flexibility and adaptability of the mold, and is suitable for the production of plastic products with complex shape and high precision. The structure design is reasonable and easy to operate, which helps to reduce production cost, improve production efficiency and meet the diversified needs of modern manufacturing industry. INVENTION CONTENTS

[0005] The utility model discloses a three direction slider core-pulling injection mold, which solves the problems in the background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a three direction slider core-pulling injection mold, including upper die seat, its lower side is provided with base, the top surface center of upper die seat is fixedly installed with the bushing of pouring for feeding, and the bushing is vertically arranged, and the upper end of the bushing is located in the placing hole on the top of the upper die seat, the bottom of upper die seat is installed with upper backing plate, and the bottom of upper backing plate is installed with upper stripper plate, the top surface of base is provided with two interval plates, two top pin plates are arranged between the two interval plates, and the top pin plate is provided with a top pin, the top of two interval plates is installed with lower backing plate, the top of lower backing plate is installed with lower die seat, and the top of lower die seat is installed with lower stripper plate, the upper die core and the lower die core are arranged between the upper stripper plate and the lower stripper plate, and the product with inner reverse buckling is arranged between the upper die core and the lower die core.

[0007] Preferably, the periphery of the product is provided with a three-direction slider inner core-pulling structure, which comprises three sliders and a rear mold core sub that cooperate with each other.

[0008] Preferably, the outer wall of the three sliders is provided with an inner undercut matched with the product, the rear mold core sub is matched with the product, and the rear mold core sub is provided with three guide grooves, and the three sliders slide in the mold cavity through the guide grooves.

[0009] Preferably, the rear mold core sub is internally provided with a guide column matched with the slider, and the bottom end of the guide column is provided with a guide column fixing block.

[0010] The utility model provides a kind of three-direction slider inner core-pulling injection mould. With following beneficial effects:

[0011] (1), the utility model discloses three sliders under the guidance of guide column, can slide flexibly in mold cavity, realize three-direction inner core-pulling, and it is convenient to form the complex structure of product;Meanwhile, the rational design of rear mold core sub ensures the accurate molding of product, and improves production efficiency and product quality.

[0012] (2), the utility model discloses three-direction slider inner core-pulling structure, guide column fixing block is stressed with guide column movement when mold opens, so that rear mold core sub and three sliders move, then three sliders are respectively matched with the guide groove on rear mold core sub, realize three-direction simultaneous stripping, effectively avoid the product defect caused by incomplete stripping, action is simple and safe, can effectively prevent the risk of mold clashing, compact structure, small space occupation, suitable for the product with complex internal structure. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure perspective drawing of the utility model;

[0014] Figure 2 It is the upper mold gallbladder, lower mold gallbladder structure schematic view of the utility model;

[0015] Figure 3 It is the three-direction slider inner core-pulling structure view of the utility model;

[0016] Figure 4 It is the three-direction slider inner core-pulling structure sectional view of the utility model.

[0017] In the drawing: upper die holder 21, upper backing plate 22, upper stripper 23, base 24, spacer plate 25, ejector plate 26, lower backing plate 27, lower die holder 28, lower stripper 29, upper mold gallbladder 31, lower mold gallbladder 32, guide column fixing block 33, guide column 34, product 35, rear mold core sub 36, slider 37, inner undercut 38. DETAILED DESCRIPTION

[0018] Clearly, the examples described are only a part of the embodiments of the present application, and are not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0019] Examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0020] The preferred embodiment of the three-direction slider inner core-pulling injection mold provided by the present application is as shown in the accompanying drawings: Figures 1-4 The preferred embodiment of the three-direction slider inner core-pulling injection mold provided by the present application is as shown in the accompanying drawings: The top of the lower spacer plate 25 is provided with a lower cushion plate 27, and the top of the lower cushion plate 27 is provided with a lower mold base 28, and the top of the lower mold base 28 is provided with a lower stripper plate 29. An upper mold core 31 and a lower mold core 32 are arranged between the upper stripper plate 23 and the lower stripper plate 29, and an inner side undercut product 35 is arranged between the upper mold core 31 and the lower mold core 32. The three-direction slider inner core-pulling structure is arranged around the product 35, and the three-direction slider inner core-pulling structure comprises three sliders 37 and a rear mold core 36 which cooperate with each other. The outer wall of the three sliders 37 is provided with an inner undercut 38 which is matched with the product 35. The rear mold core 36 is matched with the product 35, and the rear mold core 36 is provided with three guide grooves. The three sliders 37 slide in the mold cavity through the guide grooves. The rear mold core 36 is provided with a guide column 34 which is matched with the slider 37. The bottom end of the guide column 34 is provided with a guide column fixing block 33. The three sliders 37 can slide flexibly in the mold cavity under the guidance of the guide column 34, realize three-direction inner core-pulling, and facilitate the formation of the complex structure of the product 35. At the same time, the reasonable design of the rear mold core 36 ensures the accurate molding of the product, improves the production efficiency and the product quality.

[0021] In use, the mold is opened, the guide column fixing block 33 is forced to move with the guide column 34, so that the rear mold core 36 and the three sliders 37 move, then the three sliders 37 are matched with the guide grooves on the rear mold core 36 respectively, three-direction simultaneous demolding is realized, product defects caused by incomplete demolding are effectively avoided, finally the product 35 is pushed out of the mold cavity through the ejector pin, through optimization of the design of the three-direction slider 37, the product quality is ensured, and the production cost is also reduced.

[0022] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of the present application.

Claims

1. A three-directional slider internal core-pulling injection mold, comprising an upper mold base (21) with a base (24) disposed directly below it, characterized in that: A sprue sleeve for feeding is fixedly installed through the center of the top surface of the upper mold base (21), and the sprue sleeve is vertically arranged. The upper end of the sprue sleeve is located in the placement hole at the top of the upper mold base (21). An upper pad (22) is installed at the bottom of the upper mold base (21), and an upper ejector plate (23) is installed at the bottom of the upper pad (22). Two partition plates (25) are provided on the top surface of the base (24), and two ejector plates (23) are provided between the two partition plates (25). 26) The ejector plate (26) is provided with ejector pins, and the top of the two partition plates (25) is provided with a lower pad plate (27). The top of the lower pad plate (27) is provided with a lower mold base (28), and the top of the lower mold base (28) is provided with a lower ejector plate (29). An upper mold liner (31) and a lower mold liner (32) are provided between the upper mold liner (31) and the lower mold liner (32), and an inner undercut product (35) is provided between the upper mold liner (31) and the lower mold liner (32).

2. The injection mold for three-directional slider internal core pulling according to claim 1, characterized in that: The product (35) is surrounded by a three-way slider core-pulling structure, which includes three sliders (37) that cooperate with each other and a rear mold core (36).

3. The injection mold for three-directional slider internal core pulling according to claim 2, characterized in that: The outer walls of the three sliders (37) are provided with inner undercuts (38) that are adapted to the product (35). The rear mold core (36) is adapted to the product (35), and the rear mold core (36) is provided with three guide grooves. The three sliders (37) slide in the mold cavity through the guide grooves.

4. The injection mold for three-directional slider internal core pulling according to claim 2, characterized in that: The rear mold core (36) has a built-in guide post (34) that is compatible with the slider (37), and a guide post fixing block (33) is installed at the bottom end of the guide post (34).

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