A new composite mouthpiece core

Abstract

The utility model relates to hot runner technology field, and its specific disclosure is a kind of novel composite nozzle core, including: nozzle shell, the nozzle inner shell of embedding in nozzle shell inside, the nozzle main part of embedding in nozzle inner shell inside;The nozzle main part has double-layer nozzle core structure;The nozzle main part of the utility model has double-layer nozzle core structure, compared with the single nozzle core of current, double-layer nozzle core not only increases structural strength, but also can increase heat conduction effect by using copper alloy material to inner nozzle core, at the same time, outer nozzle core is made of stainless steel material to increase the heat stability of nozzle core overall structure, and outer nozzle core is pressed on nozzle inner shell by nozzle cap, solve the problem that nozzle cap directly acts on inner nozzle core, leading to inner nozzle core deformation, adopt double-layer nozzle core structure, not only increase the heat stability of structure, and do not affect the heat conduction effect of nozzle core, solve the problem that current nozzle core is deformed by nozzle cap after being heated and leading to glue leakage.

Description

Technical Field

[0001] This utility model relates to the field of hot runner technology, and in particular to a novel composite nozzle core. Background Technology

[0002] The hot runner nozzle is an important component of the hot runner system, its function being to smoothly inject molten plastic material into the mold cavity. The nozzle core and nozzle cap are also important components of the nozzle; the nozzle cap and nozzle body are connected by threads, ensuring that the nozzle core fits tightly against the nozzle body.

[0003] Since the nozzle core and nozzle cap do not generate heat, their heat comes from the heater fixed on the nozzle body. The original nozzle core is made of copper alloy material, which has good thermal conductivity, so that the nozzle core temperature can meet the requirements of normal injection molding. However, the nozzle core is easily deformed by the nozzle cap after being heated, which leads to glue leakage. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a new type of composite nozzle core. This new composite nozzle core strengthens the structural strength of a single nozzle core through a double-layer nozzle core structure, and solves the problem of glue leakage caused by the deformation of the nozzle core by the nozzle cap after being heated.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A novel composite nozzle core includes: a nozzle outer shell, a nozzle inner shell fitted inside the nozzle outer shell, and a nozzle body fitted inside the nozzle inner shell; the nozzle body has a double-layer nozzle core structure.

[0007] Preferably, the nozzle body includes an inner nozzle core, an outer nozzle core disposed outside the inner nozzle core, and a nozzle cap disposed below the outer nozzle core; the nozzle cap is installed on the inner nozzle core by a threaded connection, and presses the outer nozzle core tightly onto the inner shell of the nozzle.

[0008] Preferably, the inner nozzle core is made of copper alloy.

[0009] Preferably, the outer nozzle core is made of stainless steel.

[0010] Compared with the prior art, this application has the following beneficial effects:

[0011] This utility model's nozzle body has a double-layer nozzle core structure. Compared with the existing single nozzle core, the double-layer nozzle core not only increases structural strength, but also allows the inner nozzle core to be made of copper alloy to increase heat conduction, while the outer nozzle core is made of stainless steel to increase the overall thermal stability of the nozzle core structure. The outer nozzle core is pressed tightly onto the inner shell of the nozzle by the nozzle cap, which solves the problem of the nozzle cap directly acting on the inner nozzle core, causing deformation of the inner nozzle core. The double-layer nozzle core structure not only increases the thermal stability of the structure, but also does not affect the heat conduction of the nozzle core, solving the problem of glue leakage caused by the deformation of the nozzle core by the nozzle cap after heating. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0013] Figure 1 This is a schematic diagram of the structure of a novel composite nozzle core according to the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the nozzle body;

[0015] Figure 3 for Figure 1 A cross-sectional view of the nozzle body. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. They are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0019] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0020] Example 1:

[0021] like Figure 1 As shown, a novel composite nozzle core includes: a nozzle outer shell 10, a nozzle inner shell 20 fitted inside the nozzle outer shell 10, and a nozzle body 30 fitted inside the nozzle inner shell 20; the nozzle body 30 has a double-layer nozzle core structure.

[0022] Compared with existing technologies, the nozzle body 30 adopts a double-layer nozzle core structure, which increases the strength of the nozzle core from a structural perspective. When heated, the structure is more stable and can effectively prevent the nozzle core from deforming.

[0023] like Figure 2 and Figure 3 As shown, the nozzle body 30 includes an inner nozzle core 31, an outer nozzle core 32 disposed outside the inner nozzle core 31, and a nozzle cap 33 disposed below the outer nozzle core 32; the nozzle cap 33 is installed on the inner nozzle core 31 by a threaded connection and presses the outer nozzle core 32 onto the nozzle inner shell 20; the inner nozzle core 31 is made of copper alloy; the outer nozzle core 32 is made of stainless steel.

[0024] The specific structure of the double-layer nozzle core is that an outer nozzle core 32 is set on the outside of the inner nozzle core 31, and a nozzle cap 33 is provided under the outer nozzle core 32. The nozzle core and the nozzle inner shell 20 are installed together by the pressing action of the nozzle cap 33 on the outer nozzle core 32. The outer nozzle core 32 is made of stainless steel, which can effectively prevent deformation when it is pressed and contacted with the nozzle cap 33.

[0025] The inner nozzle core 31 is installed inside the outer nozzle core 32 and the nozzle cap 33 (e.g. Figure 3 The inner nozzle core 31 is made of copper alloy, which can effectively ensure the heat conduction effect of the nozzle core.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel composite nozzle core, characterized in that, include: The nozzle housing (10), the nozzle inner housing (20) fitted inside the nozzle housing (10), and the nozzle body (30) fitted inside the nozzle inner housing (20); the nozzle body (30) has a double-layer nozzle core structure.

2. The novel composite nozzle core according to claim 1, characterized in that, The nozzle body (30) includes an inner nozzle core (31), an outer nozzle core (32) disposed outside the inner nozzle core (31), and a nozzle cap (33) disposed under the outer nozzle core (32); the nozzle cap (33) is installed on the inner nozzle core (31) by a threaded connection and presses the outer nozzle core (32) onto the nozzle inner shell (20).

3. The novel composite nozzle core according to claim 2, characterized in that, The inner nozzle core (31) is made of copper alloy.

4. A novel composite nozzle core according to claim 2, characterized in that, The outer nozzle core (32) is made of stainless steel.

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