Flat four-head hot nozzle

Abstract

The utility model is applicable to the technical field of hot runners, and provides a flat four-head hot nozzle which comprises a flat base body, a plurality of through holes are uniformly formed in the top of the base body at intervals in a downward penetrating manner along the length direction of the base body, a hot nozzle is respectively arranged in each through hole, a runner is respectively arranged in each hot nozzle, and the runner is arranged in the flat base body. Four nozzle tips communicated with the runner are arranged at the bottom end of the hot nozzle, and a heating wire is arranged on the surface of the base body. According to the flat four-head hot nozzle, the plurality of hot nozzles are mounted in the flat base body and are uniformly heated by the heating wires on the two side surfaces of the base body, and a heating ring does not need to be arranged on the surface of each hot nozzle, so that the space occupied by the plurality of heating rings is saved, the whole module forms a flat integral structure, the structure is more compact, and the occupied space is reduced; the distance between every two adjacent hot nozzles is smaller, the glue feeding point distance is smaller, glue feeding is more uniform, the temperature is regulated and controlled in a unified mode, and more convenience is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot runner, and particularly relates to a flat four - multi - head hot nozzle. Background Art

[0002] The hot nozzle, also known as an injection nozzle, is an important component in injection molding. The plastic material that is completely melted by screw stirring at a certain temperature is injected into the mold cavity through the hot nozzle under high pressure. After cooling and solidification, the molded product is obtained. This method is suitable for mass production of parts with complex shapes and is one of the important processing methods.

[0003] In the prior art, the hot nozzles are usually arranged independently and heated separately. When multiple hot nozzles are arranged for use, due to the limitation of the size of the hot nozzle itself and the space required for the heating coil on the surface of the hot nozzle, there is a certain interval between two hot nozzles, and they cannot be closely arranged, occupying a large space. There is a large distance between the glue - discharging holes of two hot nozzles, and multiple hot nozzles also need to be temperature - controlled separately, so there are some deficiencies in use. Summary of the Utility Model

[0004] The utility model provides a flat four - multi - head hot nozzle, aiming to solve the problems that when the existing hot nozzles are arranged for use, due to the limitation of the size of the hot nozzle itself and the space required for the heating coil on the surface of the hot nozzle, there is a certain interval between two hot nozzles, they cannot be closely arranged, occupying a large space, and there is a large distance between the glue - discharging holes of two hot nozzles.

[0005] The utility model is realized as follows: A flat four - multi - head hot nozzle includes a flat base body. A plurality of through - holes are uniformly spaced and opened downward along the length direction at the top of the base body. A hot nozzle is respectively arranged in each through - hole. A flow channel is arranged in each hot nozzle. Four nozzle tips communicated with the flow channel are arranged at the bottom end of the hot nozzle. A heating wire is arranged on the surface of the base body.

[0006] Preferably, a sealing rubber sleeve is arranged between the bottom end of the surface of the hot nozzle and the base body.

[0007] Beneficial effects

[0008] Compared with the prior art, the beneficial effect of the utility model is that: for the flat four - multi - head hot nozzle of the utility model, multiple hot nozzles are installed in the flat base body and uniformly heated by the heating wires on both side surfaces of the base body, without the need to set heating coils on the surface of each hot nozzle, saving the space occupied by multiple heating coils. The whole module forms a flat integral structure, with a more compact structure, reducing the occupied space, making the distance between adjacent two hot nozzles smaller, the distance between the glue - feeding points smaller, and the glue - feeding more uniform. The temperature is uniformly regulated, which is more convenient. Brief Description of the Drawings

[0009] Figure 1It is a schematic structural diagram of the present utility model;

[0010] Figure 2 It is a schematic structural diagram of the hot nozzle in the present utility model;

[0011] Figure 3 It is a schematic cross-sectional view of the present utility model;

[0012] In the figure: 1 - base body, 2 - hot nozzle, 3 - hot nozzle, 4 - nozzle tip, 5 - heating wire. Specific embodiments

[0013] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0014] Please refer to Figures 1-3 , the present utility model provides a technical solution: a flat four - multi - head hot nozzle, including a flat base body 1, the top of the base body 1 is uniformly and spacedly penetrated downward along its length direction to form a plurality of through - holes, and each through - hole is respectively provided with a hot nozzle 2. A sealing rubber sleeve 3 is arranged between the bottom end of the surface of the hot nozzle 2 and the base body 1. Each hot nozzle 2 is provided with a flow channel, and the bottom end of the hot nozzle 2 is provided with four nozzle tips 4 communicating with the flow channel, and a heating wire 5 is arranged on the surface of the base body 1.

[0015] The base body 1 should be made of a metal material with good thermal conductivity.

[0016] Install a plurality of hot nozzles 2 into the flat base body 1, and uniformly heat them by the heating wires on both sides of the base body 1. There is no need to set heating coils on the surface of each hot nozzle 2, saving the space occupied by multiple heating coils. The whole module forms a flat integral structure, the structure is more compact, reducing the occupied space, making the distance between adjacent two hot nozzles smaller, the distance between the glue - feeding points smaller, the glue - feeding more uniform, and the temperature can be uniformly regulated, which is more convenient.

[0017] Four nozzle tips are arranged at the bottom end of each hot nozzle 2, thus forming four glue - discharging holes, discharging glue and injecting plastic simultaneously to ensure the uniformity of glue - feeding and improve the quality of injection - molded products.

[0018] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A flat four-head hot nozzle, characterized by: The invention comprises a flat base (1), wherein the top of the base (1) is provided with a plurality of through holes which are evenly spaced downwardly along the length direction thereof, each through hole is provided with a hot nozzle (2), each hot nozzle (2) is provided with a flow channel, and the bottom end of the hot nozzle (2) is provided with four nozzle tips (4) which are connected with the flow channel, and a heating wire (5) is provided on the surface of the base (1).

2. A flat four-head hot nozzle as claimed in claim 1, characterized in that: A sealing rubber sleeve (3) is arranged between the bottom end of the surface of the hot nozzle (2) and the base (1).

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