A heated uniform hot runner nozzle

Abstract

The utility model belongs to hot runner nozzle field, concretely relates to a kind of hot runner nozzle of even heating, including conveying pipe, the bottom of conveying pipe is connected with sealing cover, the inside thread connection of sealing cover has nozzle body, the inside fixed connection of nozzle body has heating cylinder, the top of nozzle body inside is provided with filter screen piece, and the inner wall of sealing cover is contacted with the top of filter screen piece.The utility model is equipped with sealing cover and other structures on nozzle body, thread connection mode, both ensure the sealing of connection, prevent liquid leakage, and it is convenient for later disassembly maintenance;By adding filter screen piece and other structures on nozzle body, the liquid entering nozzle body can be filtered, effectively remove the impurities in liquid, avoid the impurities to block nozzle or influence heating effect;Uniform heating mechanism can improve the heating state of liquid, cooperate heating cylinder to make liquid heating more evenly, greatly improve the quality stability of nozzle output liquid.

Description

Technical Field

[0001] This utility model relates to the field of hot runner nozzle technology, specifically a hot runner nozzle for uniform heating. Background Technology

[0002] According to patent authorization announcement number CN212194040U, a uniformly heated hot runner nozzle is disclosed. This utility model relates to the field of hot runner nozzle technology. Its key technical points are: it includes a nozzle body, a fixed seat on one side of the upper part of the nozzle body, a fixed ring embedded inside the fixed seat, a filter screen fixedly connected above the fixed ring on one side, the filter screen embedded inside the nozzle body, a heater one located below the filter screen on one side above the nozzle body, an electric heating wire fixedly connected inside the heater one, a support seat below the electric heating wire, a heater two fixedly connected to the surface of the support seat, and several fixed brackets on the adjacent side of the heater two. This utility model preheats the water inside the nozzle body by setting the heater one and the electric heating wire. Then, when the water passes through the center of the nozzle body, it is separated by the support seat and heated simultaneously by the heater two, heater three, and heating pipe, increasing the contact area between the water and the heating equipment, thus achieving uniform heating.

[0003] However, there are problems with the existing technology: although electric heating wires and heating tubes are installed inside the nozzle body to heat the flowing liquid, there is a significant problem of uneven heating in actual operation. Due to the fast flow rate of the liquid flowing through the nozzle body, only a portion of the liquid can form effective contact with the electric heating wires and heating tubes. This portion of liquid with sufficient contact can be successfully heated to the expected temperature; while the remaining liquid that does not contact the heating element or has insufficient contact has a significantly reduced heating effect and can only absorb a small amount of heat. This local heating difference directly leads to an uneven distribution of the liquid temperature output by the nozzle body, making it difficult to meet the requirements of uniform heating. Utility Model Content

[0004] The purpose of this invention is to provide a hot runner nozzle with uniform heating, which solves the problem of uneven heating in actual operation of a nozzle body where an electric heating wire and heating tube are installed inside to heat the flowing liquid. Due to the fast flow rate of the liquid through the nozzle body, only a portion of the liquid can form effective contact with the electric heating wire and heating tube. This portion of the liquid with sufficient contact can be successfully heated to the expected temperature. However, the remaining liquid that does not contact the heating element or has insufficient contact has a significantly reduced heating effect and can only absorb a small amount of heat. This local heating difference directly leads to an uneven distribution of liquid temperature output by the nozzle body, making it difficult to meet the requirements for uniform heating.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot runner nozzle for uniform heating, comprising a delivery pipe, a sealing cap connected to the bottom of the delivery pipe, a nozzle body threadedly connected to the inside of the sealing cap, a heating cylinder fixedly connected inside the nozzle body, a filter screen provided at the top inside the nozzle body, the top of the filter screen contacting the inner wall of the sealing cap, and a uniform heating mechanism fixedly connected inside the nozzle body.

[0006] Preferably, the uniform heating mechanism includes a mounting frame, which is fixedly connected to the top and bottom of the nozzle body. A rotating shaft is movably connected inside the mounting frame. Dispersing blades are fixedly connected to the surface of the rotating shaft. The surface of the dispersing blades is provided with through holes. A rotating blade is fixedly connected to the surface of the rotating shaft.

[0007] Preferably, the top and bottom of the surface of the dispersing blade are fixedly connected with reinforcing rings, and the reinforcing rings are located inside the nozzle body.

[0008] Preferably, a set of friction ridges is fixedly connected to the surface of the sealing cover, and the set of friction ridges is located at the bottom of the conveying pipe.

[0009] Preferably, an anti-slip sleeve is fixedly connected to the surface of the nozzle body, and the anti-slip sleeve is located on the outside of the heating cylinder.

[0010] Preferably, limiting blocks are fixedly connected to both the top and bottom of the rotating shaft surface, and the surface of the limiting blocks is in contact with the surface of the mounting bracket.

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

[0012] 1. This utility model, by adding a sealing cap and other structures to the nozzle body and using a threaded connection, not only ensures the sealing of the connection and prevents liquid leakage, but also facilitates disassembly and maintenance in the future.

[0013] 2. This utility model can filter the liquid entering the nozzle body by adding a filter screen and other structures, effectively removing impurities from the liquid and preventing impurities from clogging the nozzle or affecting the heating effect; the uniform heating mechanism can improve the heating state of the liquid, and together with the heating cylinder, make the liquid heated more evenly, which greatly improves the quality stability of the liquid output from the nozzle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional cross-sectional view of the nozzle body of this utility model;

[0016] Figure 3This is a perspective view of the heating cylinder of this utility model;

[0017] Figure 4 This is a perspective view of the dispersion blade of this utility model.

[0018] In the diagram: 1. Delivery pipe; 2. Sealing cap; 3. Nozzle body; 4. Heating cylinder; 5. Filter screen; 6. Uniform heating mechanism; 61. Mounting frame; 62. Rotating shaft; 63. Dispersing blades; 64. Penetrating hole; 65. Rotating blade; 7. Reinforcing ring rib; 8. Friction convex strip assembly; 9. Anti-slip sleeve; 10. Limiting block. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 A uniformly heated hot runner nozzle includes a delivery pipe 1, a sealing cap 2 connected to the bottom of the delivery pipe 1, a nozzle body 3 threadedly connected to the inside of the sealing cap 2, a heating cylinder 4 fixedly connected inside the nozzle body 3, a filter screen 5 disposed at the top inside the nozzle body 3, the top of the filter screen 5 contacting the inner wall of the sealing cap 2, and a uniform heating mechanism 6 fixedly connected inside the nozzle body 3.

[0021] Please see Figure 1-4 The uniform heating mechanism 6 includes a mounting frame 61, which is fixedly connected to the top and bottom of the nozzle body 3. A rotating shaft 62 is movably connected inside the mounting frame 61. A dispersing blade 63 is fixedly connected to the surface of the rotating shaft 62. A through hole 64 is opened on the surface of the dispersing blade 63. A rotating blade 65 is fixedly connected to the surface of the rotating shaft 62.

[0022] Furthermore, by setting the through hole 64, the liquid can be fully dispersed during flow, changing the original concentrated flow state of the liquid into a dispersed fine liquid flow, thereby increasing the contact area between the liquid and the heating cylinder 4.

[0023] Please see Figure 1-4 The top and bottom of the surface of the dispersing blade 63 are fixedly connected with reinforcing ring ribs 7, which are located inside the nozzle body 3.

[0024] Furthermore, by setting up the reinforcing ring rib 7, the structural strength and rigidity of the dispersing blade 63 can be effectively enhanced. When the dispersing blade 63 rotates at high speed and interacts with the liquid, the deformation or damage caused by the force on the blade can be reduced, the service life of the dispersing blade 63 can be extended, the long-term stable working state of the uniform heating mechanism 6 can be guaranteed, and the continuity of the liquid heating effect can be indirectly guaranteed.

[0025] Please see Figure 1-3 The surface of the sealing cover 2 is fixedly connected with a friction ridge assembly 8, which is located at the bottom of the conveying pipe 1.

[0026] Furthermore, the friction ridge group 8 makes it easier and less strenuous to rotate the sealing cover 2, improving the ease of operation and preventing slippage due to the smooth surface of the sealing cover 2, thus saving time and costs for installation and maintenance.

[0027] Please see Figure 1 An anti-slip sleeve 9 is fixedly connected to the surface of the nozzle body 3, and the anti-slip sleeve 9 is located on the outside of the heating cylinder 4.

[0028] Furthermore, the anti-slip sleeve 9 provides excellent anti-slip and heat insulation, effectively preventing operators from slipping their hands when in contact with the nozzle body 3, facilitating the handling, installation, or adjustment of the nozzle. At the same time, the anti-slip sleeve 9 can block the heat transferred from the heating cylinder 4 to the surface of the nozzle body 3, preventing operators from being burned by high temperatures and improving safety during use.

[0029] Please see Figure 1-4 Limiting blocks 10 are fixedly connected to the top and bottom of the surface of the rotating shaft 62, and the surface of the limiting blocks 10 is in contact with the surface of the mounting bracket 61.

[0030] Furthermore, by setting the limiting block 10, axial movement of the rotating shaft 62 during high-speed rotation can be prevented, ensuring the stability and concentricity of the rotating shaft 62, dispersing blades 63 and other components, avoiding the impact of component shaking on the liquid dispersion effect and heating uniformity, and further improving the reliability of the entire mechanism.

[0031] The specific implementation process of this utility model is as follows: When in use, the liquid is transported to the nozzle body 3 through the conveying pipe 1. After the heating cylinder 4 is started, the liquid first flows through the inner cavity of the conveying pipe 1 and is filtered out by the filter screen 5 to remove impurities, and then enters the heating cylinder 4.

[0032] During the liquid flow, the rotating blade 65 is driven to rotate, which in turn drives the dispersing blade 63 to rotate synchronously through the rotating shaft 62. The dispersing blade 63 and the pre-set penetration holes 64 on the inner wall of the heating cylinder 4 form a clever cooperation: the high-speed rotating dispersing blade 63 is like multiple sharp blades, cutting the originally continuous liquid flow into small liquid streams and droplets, while the penetration holes 64 are like precisely distributed diversion ports, allowing the cut liquid to be further split and reorganized when passing through the holes. This dual effect not only breaks the original flow inertia of the liquid and significantly reduces the speed of the turbulent liquid flow, but also fully disperses the liquid that may have gathered into clumps into evenly distributed small units. These dispersed liquid units can more comprehensively cover the inner wall of the heating cylinder 4, forming a large area and no dead angle contact with the heating surface. In addition, the contact time is extended after the flow rate is slowed down, and the liquid can fully absorb heat, ultimately making the liquid temperature output by the nozzle body 3 more uniform and stable.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot runner nozzle for uniform heating, comprising a delivery pipe (1), characterized in that: The bottom of the delivery pipe (1) is connected to a sealing cap (2), and the inside of the sealing cap (2) is threadedly connected to a nozzle body (3). The inside of the nozzle body (3) is fixedly connected to a heating cylinder (4), and a filter screen (5) is provided at the top inside the nozzle body (3). The top of the filter screen (5) is in contact with the inner wall of the sealing cap (2), and a uniform heating mechanism (6) is fixedly connected inside the nozzle body (3).

2. The uniformly heated hot runner nozzle according to claim 1, characterized in that: The uniform heating mechanism (6) includes a mounting frame (61), which is fixedly connected to the top and bottom of the nozzle body (3). A rotating shaft (62) is movably connected inside the mounting frame (61). A dispersing blade (63) is fixedly connected to the surface of the rotating shaft (62). A through hole (64) is opened on the surface of the dispersing blade (63). A rotating blade (65) is fixedly connected to the surface of the rotating shaft (62).

3. The uniformly heated hot runner nozzle according to claim 2, characterized in that: The top and bottom of the surface of the dispersing blade (63) are fixedly connected with reinforcing rings (7), which are located inside the nozzle body (3).

4. The uniformly heated hot runner nozzle according to claim 1, characterized in that: The sealing cover (2) is fixedly connected to a friction ridge assembly (8), which is located at the bottom of the conveying pipe (1).

5. A uniformly heated hot runner nozzle according to claim 1, characterized in that: The nozzle body (3) is fixedly connected to an anti-slip sleeve (9), which is located on the outside of the heating cylinder (4).

6. A uniformly heated hot runner nozzle according to claim 2, characterized in that: Limiting blocks (10) are fixedly connected to the top and bottom of the surface of the rotating shaft (62), and the surface of the limiting blocks (10) is in contact with the surface of the mounting bracket (61).

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