Hot nozzle and hot runner system

Abstract

The utility model discloses a hot nozzle and a hot runner system, which comprise a hot nozzle body and an anti-drawing roller, a runner is formed in the hot nozzle body, the hot nozzle body is provided with a through hole communicated with the runner, and one end of the anti-drawing roller penetrates through the through hole and extends into the runner. According to the hot nozzle and the hot runner system, the hot nozzle body is provided with the through hole communicated with the runner, so that the hot nozzle and the hot runner system are convenient to process, and the through hole can play a guiding role in mounting an anti-drawing roller so as to be convenient to mount.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runner molds, and particularly to a hot nozzle and a hot runner system. Background Art

[0002] In the related art, the structure of the hot nozzle is as Figure 1 shown. The hot nozzle includes a hot nozzle body 1, and a runner 11 is provided in the hot nozzle body 1. In order to prevent the hot nozzle from drawing wire, an anti-drawing wire gasket A having a shunt portion A1 and a runner hole A2 as Figure 2 shown is usually provided in the runner 11. In order to prevent the anti-drawing wire gasket A from shaking in the runner 11, a groove B adapted to the shape of the anti-drawing wire gasket A is usually machined inside the hot nozzle to limit the anti-drawing wire gasket A. However, it is difficult to machine the groove B inside the hot nozzle, and it is not easy to install the anti-drawing wire gasket A into the groove B.

[0003] Therefore, the prior art needs to be improved and developed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hot nozzle and a hot runner system, which are not only simple to process but also convenient to install.

[0005] In a first aspect, a hot nozzle provided by the utility model includes: a hot nozzle body and an anti-drawing wire rod. A runner is formed in the hot nozzle body, and a through hole communicating with the runner is provided on the hot nozzle body. One end of the anti-drawing wire rod passes through the through hole and extends into the runner.

[0006] According to an embodiment of the utility model, a blind hole communicating with the runner is provided on the hot nozzle body, and one end of the anti-drawing wire rod extends into the blind hole.

[0007] According to an embodiment of the utility model, the other end of the anti-drawing wire rod is connected to the hot nozzle body.

[0008] According to an embodiment of the utility model, the other end of the anti-drawing wire rod is connected to the hot nozzle body by welding.

[0009] According to an embodiment of the utility model, the other end of the anti-drawing wire rod is located in the through hole.

[0010] According to an embodiment of the utility model, the runner includes a glue inlet section and a glue outlet section; one end of the anti-drawing wire rod passes through the through hole and extends into the glue outlet section.

[0011] According to an embodiment of the utility model, the caliber of the glue inlet section is larger than that of the glue outlet section.

[0012] According to an embodiment of the present utility model, the caliber of the glue outlet section gradually increases from the end of the glue outlet section close to the glue inlet section to the end of the glue outlet section far from the glue inlet section.

[0013] According to an embodiment of the present utility model, the inner side wall of the end of the glue inlet section close to the glue outlet section has an arc surface.

[0014] In a second aspect, a hot runner system provided by the present utility model includes one or more of the hot nozzles described in the first aspect above.

[0015] The beneficial effects of the present utility model are as follows: The hot nozzle and the hot runner system of the present utility model are provided with through holes communicating with the runner on the hot nozzle body, which is not only convenient for processing, but also the through holes can play a guiding role when installing the anti-drawing rod, so as to facilitate installation. Description of the Drawings

[0016] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0017] Figure 1 is a cross-sectional view of a hot nozzle in the prior art;

[0018] Figure 2 is a schematic diagram of a gasket in the prior art;

[0019] Figure 3 is a schematic structural diagram of a hot nozzle in an embodiment of the present utility model;

[0020] Figure 4 is a cross-sectional view of a hot nozzle in an embodiment of the present utility model.

[0021] Description of the Reference Numerals:

[0022] 1. Hot nozzle body; 11. Runner; 111. Glue inlet section; 1111. Arc surface; 112. Glue outlet section; 12. Through hole; 13. Blind hole; 2. Anti-drawing rod; A. Anti-drawing gasket; A1. Manifold plate; A2. Runner hole; B. Groove. Detailed Embodiments

[0023] The following will disclose multiple embodiments of the present utility model with diagrams. For the sake of clarity, many practical details will be described together in the following description. However, it should be understood that these practical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these practical details are unnecessary. In addition, for the purpose of simplifying the diagrams, some well-known and commonly used structures and components will be shown in a simple schematic manner in the diagrams.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.

[0025] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] In order to further understand the content, features and effects of the present utility model, the following embodiments are exemplified and described in detail with reference to the attached drawings as follows:

[0027] In the first aspect, as Figure 3 and Figure 4 shown, a hot nozzle provided by the present utility model includes: a hot nozzle body 1 and an anti-drawing rod 2. A flow channel 11 is formed in the hot nozzle body 1, a through hole 12 communicating with the flow channel 11 is provided on the hot nozzle body 1, and one end of the anti-drawing rod 2 passes through the through hole 12 and extends into the flow channel 11.

[0028] In specific applications, the through hole 12 can be realized by using drilling equipment, which is simple and convenient to process. Moreover, the through hole 12 can play a guiding role when installing the anti-drawing rod 2, facilitating installation. When the plastic flows through the flow channel 11, the anti-drawing rod 2 can cause the plastic to be divided and then flow out from the outlet of the flow channel 11 to achieve the effect of preventing drawing.

[0029] In some preferred embodiments, a blind hole 13 communicating with the flow channel 11 is provided on the above-mentioned hot nozzle body 1, and one end of the anti-drawing rod 2 extends into the blind hole 13. In specific applications, by providing the blind hole 13 communicating with the flow channel 11 and making one end of the anti-drawing rod 2 extend into the blind hole 13, the one end of the anti-drawing rod 2 can be effectively fixed.

[0030] In some preferred embodiments, the other end of the anti-drawing rod 2 is connected to the hot nozzle body 1. Specifically, the other end of the anti-drawing rod 2 and the hot nozzle body 1 can be connected by welding. Through this technical solution, the anti-drawing rod 2 can be firmly connected to the hot nozzle body 1, preventing the anti-drawing rod 2 from moving axially.

[0031] In some preferred embodiments, the other end of the anti-drawing rod 2 is located within the through hole 12. In specific applications, by designing the other end of the anti-drawing rod 2 to be located within the through hole 12, the other end of the anti-drawing rod 2 is prevented from protruding from the hot nozzle body 1, which may affect the normal use of the hot nozzle.

[0032] In some preferred embodiments, the above-mentioned runner 11 includes a glue inlet section 111 and a glue outlet section 112; one end of the anti-drawing rod 2 passes through the through hole 12 and extends into the glue outlet section 112. In specific applications, by designing one end of the anti-drawing rod 2 to extend into the glue outlet section 112, a better anti-drawing effect can be achieved.

[0033] In some preferred embodiments, the diameter of the glue inlet section 111 is larger than the diameter of the glue outlet section 112. In specific applications, by designing the diameter of the glue inlet section 111 to be larger than the diameter of the glue outlet section 112, it can ensure that the plastic maintains good fluidity and temperature during the injection molding process, while adapting to different plastic characteristics and mold design requirements, thereby improving production efficiency and product quality.

[0034] In some preferred embodiments, the diameter of the glue outlet section 112 gradually increases from the end of the glue outlet section 112 close to the glue inlet section 111 to the end of the glue outlet section 112 far from the glue inlet section 111. In specific applications, by designing the diameter of the glue outlet section 112 to gradually increase from the end of the glue outlet section 112 close to the glue inlet section 111 to the end of the glue outlet section 112 far from the glue inlet section 111, it can effectively absorb shear heat energy, reduce the temperature of the plastic melt in the hot nozzle, thereby reducing the situation where the temperature of the plastic melt in the hot nozzle is higher than the normal melt temperature after injection molding, so as to improve the success rate of the injection molding process.

[0035] In some preferred embodiments, the inner side wall of the end of the glue inlet section 111 close to the glue outlet section 112 has an arc surface 1111. In specific applications, by providing the arc surface 1111 on the inner side wall of the end of the glue inlet section 111 close to the glue outlet section 112, the fluidity of the plastic can be optimized and the shear stress at the connection between the glue inlet section 111 and the glue outlet section 112 can be reduced, thereby improving product quality and reducing defects.

[0036] In a second aspect, the present invention provides a hot runner system, including one or more of the hot nozzles in the first aspect above.

[0037] In summary, in one or more embodiments of the present utility model, the hot nozzle and the hot runner system of the present utility model are provided with through holes communicating with the runner on the hot nozzle body, which is not only convenient for processing, but also the through holes can play a guiding role when installing the anti-drawing rod, so as to facilitate installation.

[0038] The above description is only for the embodiments of the present utility model and is not intended to limit the present utility model. For those skilled in the art, various modifications and changes can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A hot nozzle, characterized in that: It comprises a hot nozzle body (1) and an anti-wire drawing rod (2), wherein a flow channel (11) is formed in the hot nozzle body (1), a through hole (12) connected to the flow channel (11) is provided on the hot nozzle body (1), and one end of the anti-wire drawing rod (2) passes through the through hole (12) and extends into the flow channel (11).

2. The hot nozzle according to claim 1, characterized in that: The hot nozzle body (1) is provided with a blind hole (13) connected to the flow channel (11), and one end of the anti-wire drawing rod (2) extends into the blind hole (13).

3. The hot nozzle according to claim 1, characterized in that: The other end of the anti-wire drawing rod (2) is connected to the hot nozzle body (1).

4. The hot nozzle according to claim 3, characterized in that: The other end of the anti-wire drawing rod (2) is connected to the hot nozzle body (1) by welding.

5. The hot nozzle according to claim 1, characterized in that: The other end of the anti-wire drawing rod (2) is located in the through hole (12).

6. The hot nozzle according to claim 1, characterized in that: The flow channel (11) comprises a glue inlet section (111) and a glue outlet section (112); one end of the anti-wire drawing rod (2) passes through the through hole (12) and extends into the glue outlet section (112).

7. The hot nozzle according to claim 6, characterized in that: The caliber of the glue inlet section (111) is greater than the caliber of the glue outlet section (112).

8. The hot nozzle according to claim 6, characterized in that: The caliber of the glue outlet section (112) gradually increases from an end of the glue outlet section (112) close to the glue inlet section (111) to an end of the glue outlet section (112) far from the glue inlet section (111).

9. The hot nozzle according to claim 6, characterized in that: The inner side wall of one end of the glue inlet section (111) close to the glue outlet section (112) has a curved surface (1111).

10. A hot runner system, characterized in that: Comprising one or more hot nozzles according to any one of claims 1-9.

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