Hot runner structure of injection mold

Abstract

The hot runner structure comprises a sprue bush, a hot runner is installed on the right side of the sprue bush, a nozzle tip is arranged on the right side of the hot runner, a runner outlet is formed in the top of the nozzle tip, the plane of the right end of the nozzle tip is smaller than 0.1 mm, a connecting cylinder is arranged between the hot runner and the nozzle tip, and the connecting cylinder is connected with the sprue bush through a connecting rod. The hot runner structure of the injection mold comprises a hot runner, a sprue bush and a nozzle tip, the hot runner and the nozzle tip are connected through a connecting cylinder, a sprue is formed in the left side of the sprue bush, and the sprue is communicated with the hot runner. The injection molding raw materials flow out from the runner outlet after passing through the hot runner, and due to the inclined arrangement of the runner outlet, the injection molding raw materials cannot be accumulated at the bottom of the inner cavity of the mold after flowing out from the runner outlet, so that the injection molding raw materials are uniformly filled in the mold.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a hot runner structure for injection molds. Background Technology

[0002] In injection molding, the hot runner system is a crucial component of the mold, playing a vital role in improving production efficiency and ensuring product quality. The hot runner mold structure is essentially the same as that of a two-plate mold, consisting of an insulated hot runner system and a heated hot runner system. The insulated hot runner uses a material with very low thermal conductivity around the runner to insulate it from the molten plastic, while the heated runner is controlled by heating elements on the runner. Modern hot runner systems for injection molding typically include hot nozzles, a manifold, and a temperature controller. The hot nozzles are in contact with the surface of the manifold, and the temperature controller controls the melting temperature and plasticizing time of the plastic. During injection molding, the molten plastic flows through the manifold into the hot nozzles, and then into the mold cavity for molding.

[0003] Hot runner molds are commonly used injection molding molds for plastic materials. Compared to cold runner molds, they offer advantages such as saving raw materials, shortening the molding cycle, reducing waste, improving product quality, eliminating subsequent processes, and facilitating production automation. However, in hot runner molds, the runner outlet and the hot runner are typically horizontally connected. This causes the injection material to accumulate at the bottom of the mold cavity when the material exits the runner, preventing the material from filling the mold interior evenly. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide a hot runner structure for injection molds.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] A hot runner structure for an injection mold includes a sprue bushing, a hot runner is installed on the right side of the sprue bushing, a nozzle is provided on the right side of the hot runner, and a runner outlet is provided at the top of the nozzle.

[0007] Furthermore, the right end plane of the nozzle tip is less than 0.1 mm.

[0008] Furthermore, a connecting cylinder is provided between the hot runner and the nozzle tip, and the hot runner and the nozzle tip are connected by the connecting cylinder.

[0009] Furthermore, a gate is provided on the left side of the gate sleeve, and the gate is configured to communicate with the hot runner.

[0010] Furthermore, the hot runner is connected to the connecting cylinder, the connecting cylinder is connected to the runner outlet, and the runner outlet is inclined.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses a hot runner structure for injection molds. During use, the device is installed on the injection mold. The injection material enters the gate and reaches the inside of the hot runner. After passing through the hot runner, the injection material flows out from the runner outlet. Because of the inclined setting of the runner outlet, the injection material will not accumulate at the bottom of the mold cavity after flowing out from the runner outlet, thus making the injection material evenly fill the inside of the mold. Attached Figure Description

[0013] Figure 1 This is a frontal perspective view of the present invention;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 This is a front sectional view of the present invention.

[0016] The following are the labels in the diagram: 1. Sprue bushing; 2. Hot runner; 3. Sprue; 4. Connecting sleeve; 5. Runner outlet; 6. Nozzle tip. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution: a hot runner structure for an injection mold, including a sprue sleeve 1, a hot runner 2 installed on the right side of the sprue sleeve 1, a nozzle tip 6 on the right side of the hot runner 2, the nozzle tip 6 being made of wear-resistant material, a runner outlet 5 opening at the top of the nozzle tip 6, the right end plane of the nozzle tip 6 being less than 0.1mm, a connecting cylinder 4 being provided between the hot runner 2 and the nozzle tip 6, the hot runner 2 and the nozzle tip 6 being connected by the connecting cylinder 4, a sprue 3 opening on the left side of the sprue sleeve 1, the sprue 3 being connected to the hot runner 2, the hot runner 2 being connected to the connecting cylinder 4, the connecting cylinder 4 being connected to the runner outlet 5, and the runner outlet 5 being inclined.

[0019] Working principle: This utility model discloses a hot runner structure for injection molds. During use, the device is installed on the injection mold. The injection material enters the gate 3 and reaches the inside of the hot runner 2. After passing through the hot runner 2, the injection material flows out from the runner outlet 5. Because the runner outlet 5 is inclined, the injection material will not accumulate at the bottom of the mold cavity after flowing out from the runner outlet 5, thus making the injection material evenly fill the inside of the mold.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hot runner structure for an injection mold, comprising a sprue bushing (1), characterized in that: A hot runner (2) is installed on the right side of the sprue sleeve (1). A nozzle (6) is provided on the right side of the hot runner (2). A flow outlet (5) is opened at the top of the nozzle (6). The hot runner (2) is connected to the connecting cylinder (4). The connecting cylinder (4) is connected to the flow outlet (5). The flow outlet (5) is inclined.

2. The hot runner structure of an injection mold as described in claim 1, characterized in that: The right end plane of the tip (6) is less than 0.1 mm.

3. The hot runner structure of an injection mold as described in claim 1, characterized in that: A connecting cylinder (4) is provided between the hot runner (2) and the nozzle (6), and the hot runner (2) and the nozzle (6) are connected by the connecting cylinder (4).

4. The hot runner structure of an injection mold as described in claim 1, characterized in that: The sprue sleeve (1) has a sprue (3) on its left side, and the sprue (3) is connected to the hot runner (2).

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