Injection mold

Abstract

The utility model discloses an injection mold which comprises an upper mold plate and a lower mold plate, a lower mold core is mounted at the top of the lower mold plate, and an upper mold core matched with the lower mold core is mounted at the bottom end of the upper mold plate; the lower mold core comprises a mold core, side molds and an ejector block, the side molds are arranged on the three side faces of the mold core, and the ejector block is installed on the side, located on one side of the mold core, of each side mold; and a hot runner thimble and a product thimble are also included. According to the utility model, the jacking block is directly controlled to lift, and the jacking block is integrally ejected, so that the jacking injury risk can be reduced; the product is not provided with inserts, the surface is more attractive, insert traces are avoided, the risk of burrs is avoided, sliders on four sides are omitted, structural blocks are simplified, the size of the mold base can be reduced, and the cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically an injection mold. Background Technology

[0002] Injection molds are tools used to produce plastic products; they also give plastic products their complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts.

[0003] An injection mold, disclosed in publication number CN118721623A, includes: a first mold mechanism comprising a first mold assembly, a substrate, and a first insert, wherein the first mold assembly and the substrate are slidably connected, and the first insert is fixedly connected to the substrate and slidably disposed within the first mold assembly, the first insert being inserted into a product; a second mold mechanism, which, together with the first mold assembly, forms a cavity for molding the product; and a drive mechanism connected to the first and second mold mechanisms, wherein the drive mechanism drives the second mold mechanism to move away from the first mold assembly by a first stroke, then drives the second mold mechanism and the first mold assembly to move away from the substrate by a second stroke, and then drives the second mold mechanism to move away from the first mold assembly. The first insert slides relative to the first mold assembly and exerts a pulling effect on the product, thereby reducing the adhesion between the product and the first mold assembly, thus reducing the demolding time and ultimately improving the processing efficiency of the injection mold.

[0004] Existing technologies use inserts, which require slots to be cut into the top block, necessitating wire cutting, increasing component manufacturing costs and assembly complexity, and also resulting in insert marks and burrs. To address this, we propose an injection mold. Utility Model Content

[0005] The purpose of this invention is to provide an injection mold to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold, comprising an upper mold plate and a lower mold plate, wherein a lower mold core is installed on the top of the lower mold plate, and an upper mold core that mates with the lower mold core is installed on the bottom of the upper mold plate; the lower mold core comprises a mold core, side molds, and an ejector block, wherein side molds are provided on three sides of the mold core, and an ejector block is installed on one side of the side mold; it also includes a hot runner ejector pin and a product ejector pin.

[0007] Preferably, the hot runner ejector pin and the product ejector pin are mounted on the lower mold.

[0008] Preferably, the hot runner ejector pin extends to the hot runner, and the product ejector pin extends to the product molding groove.

[0009] Preferably, the side mold has an installation groove for mounting the top block, the top block is installed in the installation groove of the side mold, the bottom end of the top block has a T-shaped lifting groove, and the lower mold is equipped with a lifting rod that cooperates with the T-shaped lifting groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are: direct control of the lifting and lowering of the top block, the top block adopts integral ejection, which can reduce the risk of top damage; the product has no inserts, the surface is more beautiful, there are no insert marks, no risk of burrs, the four sides eliminate the slider, simplify the design of the structural block, the size of the mold frame can be reduced, and the cost is saved; the wire cutting cost is saved, the cost of cutting inserts and processing is eliminated, and the complexity of processing is reduced. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the lower mold of this utility model;

[0014] Figure 3 This is a utility model Figure 2 Top view;

[0015] Figure 4 This is a schematic diagram of the side mold and top block of this utility model;

[0016] Figure 5 This is a utility model Figure 4 Partial structural diagram;

[0017] Figure 6 This is a utility model Figure 4 Top view;

[0018] Figure 7 This is a utility model Figure 6 A sectional view;

[0019] Figure 8 This is a utility model Figure 5 A schematic diagram of the structure during top block removal.

[0020] In the diagram: 1. Upper mold plate; 2. Lower mold plate; 3. Lower mold core; 4. Hot runner ejector pin; 5. Product ejector pin; 31. Mold core; 32. Side mold; 33. Ejector block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0022] Please see Figure 1-8 In this embodiment of the present invention, an injection mold includes an upper mold plate 1 and a lower mold plate 2. A lower mold core 3 is mounted on the top of the lower mold plate 2, and an upper mold core that mates with the lower mold core 3 is mounted on the bottom of the upper mold plate 1. The lower mold core 3 includes a mold core 31, side molds 32, and ejector blocks 33. Side molds 32 are provided on three sides of the mold core 31, and ejector blocks 33 are mounted on one side of the side molds 32. The mold mold also includes hot runner ejector pins 4 and product ejector pins 5. The hot runner ejector pins 4 and product ejector pins 5 are mounted on the lower mold. The hot runner ejector pin 4 extends to the hot runner, and the product ejector pin 5 extends to the product molding groove; the side mold 32 has an installation groove for the ejector block 33 to be installed, and the ejector block 33 is installed in the installation groove of the side mold 32. The bottom end of the ejector block 33 has a T-shaped lifting groove; the lifting and lowering of the ejector block is directly controlled, and the ejector block is ejected as a whole, which can reduce the risk of ejection damage; the product has no inserts, the surface is more beautiful, there are no insert marks, no risk of burrs, the sliders on all four sides are eliminated, the design structure blocks are simplified, the mold base size can be reduced, and costs are saved.

[0023] The working principle of this utility model is: direct control of the lifting and lowering of the top block, the top block is ejected as a whole, which can reduce the risk of top damage; the product has no inserts, the surface is more beautiful, there are no insert marks, no risk of rough edges, the sliders on all four sides are eliminated, the design structure blocks are simplified, the size of the mold frame can be reduced, and the cost is saved.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An injection mold comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: The lower mold plate (2) is provided with a lower mold core (3) at the top, and the upper mold plate (1) is provided with an upper mold core matched with the lower mold core (3) at the bottom; the lower mold core (3) comprises a mold core (31), a side mold (32) and a top block (33), the three sides of the mold core (31) are provided with the side mold (32), and the side mold (32) is provided with the top block (33) at one side of the mold core (31); further comprising a hot runner pin (4) and a product pin (5).

2. An injection mold according to claim 1, characterized in that: The hot runner pin (4) and the product pin (5) are installed on the lower mold.

3. An injection mold according to claim 1, characterized in that: The hot runner pin (4) extends to the hot runner, and the product pin (5) extends to the forming groove of the product.

4. An injection mold according to claim 1, characterized in that: The side mold (32) is provided with a mounting groove for mounting the top block (33), the top block (33) is mounted at the mounting groove of the side mold (32), and the bottom end of the top block (33) is provided with a T-shaped lifting groove.

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