A hot runner injection molding manifold structure

Abstract

The utility model discloses a kind of hot runner injection uses shunt cone structure, including shunt mechanism, heat dissipation mechanism and backflow mechanism, the shunt mechanism includes cone, the cone cap being connected with the top of the cone, the ladder groove being opened in the inner wall of the cone, heat dissipation mechanism, the heat dissipation mechanism includes the water inlet pipe being penetrated in the lateral wall of the cone, the water storage ring being sleeved in the inner end of the water inlet pipe and being fixed to the inside of the cone, the pressure plate being movably installed in the inside of the water storage ring, the hydraulic cylinder being connected between the cone and the pressure plate. In the utility model, cold water is introduced from the position of water inlet pipe, after the inside of water storage ring is filled with cold water, the movable end of hydraulic cylinder is lowered with pressure plate, then cold water gushes out from the inside of booster water pipe, then cold water is twice pressurized after fine tube one, spray head, so that cold water covers the top of cone cap, then the water curtain formed again flows down along ladder groove, thereby improve heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of flow divider cone structures, specifically a flow divider cone structure for hot runner injection molding. Background Technology

[0002] The main function of the runner cone is to guide and distribute the molten metal, allowing it to fill quickly and evenly. It also reduces the erosion of the molding surface by the molten metal during filling. Runner cones can be used to withstand the impact of molten metal, adjust the cross-sectional area of ​​the sprue, and guide and change the direction of the metal flow.

[0003] Although the current flow divider cone is equipped with a built-in water cooling system, there are key problems that significantly restrict the heat exchange efficiency in actual operation: the core problem is that the inlet water pressure is too low, which results in insufficient kinetic energy when the cooling water is sprayed from the nozzle, and it is impossible to form a uniform water film that effectively covers the inner wall of the cone. At the same time, due to insufficient pressure and flow channel design limitations, the cooling water flows too fast inside the cone and has too short a residence time, resulting in very low heat exchange efficiency. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A hot runner injection molding process includes a flow-dividing cone structure, a heat dissipation mechanism, and a return flow mechanism. The flow-dividing mechanism includes a cone, a cone cap connected to the top of the cone, and a stepped groove formed in the inner wall of the cone. The heat dissipation mechanism includes a water inlet pipe penetrating one side wall of the cone, a water storage ring sleeved on the inner end of the water inlet pipe and fixed to the inside of the cone, a pressure plate movably installed inside the water storage ring, a hydraulic cylinder connected between the cone and the pressure plate, and a booster water pipe connected to the top of the water storage ring. The return flow mechanism includes a water receiving hopper connected to the inner wall of the cone, a water baffle ring movably sleeved on the outer side of the water storage ring and connected to the bottom of the water receiving hopper, a drainage cavity formed between the water storage ring and the water baffle ring, and a water outlet pipe penetrating the front side of the cone, with the inner end of the water outlet pipe penetrating the front side of the water baffle ring.

[0007] By adopting the above technical solution, cold water is introduced from the water inlet pipe. After the cold water fills the inside of the water storage ring, the moving end of the hydraulic cylinder lowers the pressure plate. Then, the cold water gushes out from the inside of the pressurized water pipe. After the cold water is pressurized twice by the thin pipe and the nozzle, the cold water completely covers the top of the inner cavity of the cone cover. The water curtain formed then flows down along the stepped groove, thereby improving the heat exchange efficiency.

[0008] In a preferred embodiment, the present invention can be further configured such that the hydraulic cylinder is eccentrically positioned relative to the pressure plate, and the hydraulic cylinder is electrically connected to an external power source.

[0009] In a preferred embodiment, the present invention can be further configured such that a V-shaped plate is sleeved on the outer side of the movable end of the hydraulic cylinder, and the top of the V-shaped plate is fixedly connected to the bottom of the pressure plate.

[0010] In a preferred embodiment, the present invention can be further configured such that: the pressurized water pipe is composed of a thin tube, a constriction shell, and a nozzle, wherein the constriction shell is integrally formed between the thin tube and the nozzle, and the inner diameter of the thin tube is larger than the inner diameter of the nozzle.

[0011] In a preferred embodiment, the present invention can be further configured such that the water-blocking ring and the water-storage ring are eccentrically arranged, and both the water-storage ring and the water-blocking ring are made of stainless steel.

[0012] In a preferred embodiment, the present invention can be further configured such that a one-way valve is installed on the water inlet pipe, and the one-way valve is located between the cone and the water-blocking ring.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, cold water is introduced from the water inlet pipe. After the cold water fills the inside of the water storage ring, the moving end of the hydraulic cylinder lowers the pressure plate. Then, the cold water gushes out from the inside of the pressurized water pipe. After the cold water is pressurized twice by the thin pipe and the nozzle, the cold water completely covers the top of the inner cavity of the cone cover. The water curtain formed then flows down along the stepped groove, thereby improving the heat exchange efficiency.

[0015] 2. In this utility model, the water flowing down from the ladder groove is guided by the water receiving hopper and flows into the drain chamber, and then is discharged from the outlet pipe. This prevents the water from accumulating in the cone and prevents the cone from becoming full of water, so that the heat exchange operation can proceed smoothly. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a rearward side view of the overall structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the diversion mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the heat dissipation mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the reflux mechanism of this utility model;

[0022] Figure 7 This is a three-dimensional view of the pressurized water pipe of this utility model.

[0023] Figure label:

[0024] 100. Diverting mechanism; 110. Cone; 120. Conical cover; 130. Ladder groove;

[0025] 200. Heat dissipation mechanism; 210. Water inlet pipe; 220. Water storage ring; 230. Pressure plate; 240. Hydraulic cylinder; 250. Booster water pipe; 251. Thin tube one; 252. Constriction shell; 253. Nozzle;

[0026] 300, reflux mechanism; 310, water receiving hopper; 320, water baffle ring; 330, drain chamber; 340, water outlet pipe; 400, one-way valve. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0028] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0029] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a flow divider cone structure for hot runner injection molding.

[0030] Example 1:

[0031] Combination Figure 1-7 As shown, the present invention provides a flow divider cone structure for hot runner injection molding, including a flow divider mechanism 100, a heat dissipation mechanism 200 and a return flow mechanism 300. The flow divider mechanism 100 includes a cone 110, a cone cap 120 connected to the top of the cone 110, and a stepped groove 130 formed on the inner wall of the cone 110.

[0032] The heat dissipation mechanism 200 includes a water inlet pipe 210 that passes through one side wall of the cone 110, a water storage ring 220 that is sleeved on the inner end of the water inlet pipe 210 and fixed inside the cone 110, a pressure plate 230 that is movably installed inside the water storage ring 220, a hydraulic cylinder 240 that connects the cone 110 and the pressure plate 230, and a booster water pipe 250 that is connected to the top of the water storage ring 220.

[0033] The return mechanism 300 includes a water receiving hopper 310 connected to the inner wall of the cone 110, a water blocking ring 320 movably sleeved on the outside of the water storage ring 220 and connected to the bottom of the water receiving hopper 310, a drainage cavity 330 formed between the water storage ring 220 and the water blocking ring 320, and a water outlet pipe 340 penetrating the front side of the cone 110, the inner end of the water outlet pipe 340 penetrating the front side of the water blocking ring 320.

[0034] Furthermore, the hydraulic cylinder 240 is eccentrically positioned with respect to the pressure plate 230, and the hydraulic cylinder 240 is electrically connected to an external power source. The layout design of the hydraulic cylinder 240 will not obstruct the entry of cold water into the booster water pipe 250.

[0035] Furthermore, the pressurized water pipe 250 is composed of a thin tube 251, a constriction shell 252, and a nozzle 253. The constriction shell 252 is integrally formed between the thin tube 251 and the nozzle 253. The inner diameter of the thin tube 251 is larger than the inner diameter of the nozzle 253. The shape design of the pressurized water pipe 250 can reduce the diameter of the two sides, making the water flow more powerful.

[0036] Furthermore, the water-blocking ring 320 and the water-storage ring 220 are eccentrically positioned. Both the water-storage ring 220 and the water-blocking ring 320 are made of stainless steel. The stainless steel material of the water-storage ring 220 and the water-blocking ring 320 reduces the probability of rusting and ensures their service life.

[0037] Example 2:

[0038] Combination Figure 1 and Figure 5 As shown, based on Embodiment 1, a V-shaped plate is sleeved on the outer side of the movable end of the hydraulic cylinder 240. The top of the V-shaped plate is fixedly connected to the bottom of the pressure plate 230. The U-shaped plate can increase the connection between the pressure plate 230 and the hydraulic cylinder 240, so that the pressure plate 230 can stably squeeze the cold water in the water storage ring 220.

[0039] Example 3:

[0040] Combination Figure 2 , 3 and Figure 5 As shown, in the above embodiment, a one-way valve 400 is installed on the water inlet pipe 210. The one-way valve 400 is located between the cone 110 and the water baffle ring 320. The one-way valve 400 can restrict the flow direction of water in the water inlet pipe 210, so that the water inlet pipe 210 has only the ability to receive water.

[0041] The working principle and usage process of this utility model are as follows: Cold water is introduced into the water inlet pipe 210. After the cold water fills the water storage ring 220, the moving end of the hydraulic cylinder 240 lowers the pressure plate 230. Then, the cold water flows out from the inside of the pressurized water pipe 250. After being pressurized twice by the thin pipe 251 and the nozzle 253, the cold water completely covers the top of the inner cavity of the cone cover 120. The water curtain formed then flows down along the stepped groove 130, thereby improving the heat exchange efficiency. Then, the water flow is guided by the water receiving hopper 310 and flows into the drain chamber 330. Finally, the cold water is discharged through the water outlet pipe 340, thereby preventing water from accumulating in the cone and preventing the cone from becoming full of water, so that the heat exchange operation can proceed smoothly.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A flow divider cone structure for hot runner injection molding, characterized in that, include: The diversion mechanism (100) includes a cone (110), a cone cap (120) connected to the top of the cone (110), and a stepped groove (130) formed on the inner wall of the cone (110). The heat dissipation mechanism (200) includes a water inlet pipe (210) penetrating through one side wall of the cone (110), a water storage ring (220) sleeved on the inner end of the water inlet pipe (210) and fixed inside the cone (110), a pressure plate (230) movably installed inside the water storage ring (220), a hydraulic cylinder (240) connected between the cone (110) and the pressure plate (230), and a booster water pipe (250) connected to the top of the water storage ring (220). The return mechanism (300) includes a water receiving hopper (310) connected to the inner wall of the cone (110), a water blocking ring (320) movably sleeved on the outside of the water storage ring (220) and connected to the bottom of the water receiving hopper (310), a drainage cavity (330) formed between the water storage ring (220) and the water blocking ring (320), and a water outlet pipe (340) penetrating the front side of the cone (110), the inner end of which penetrates the front side of the water blocking ring (320).

2. The flow divider cone structure for hot runner injection molding according to claim 1, characterized in that, The hydraulic cylinder (240) is eccentrically positioned with respect to the pressure plate (230), and the hydraulic cylinder (240) is electrically connected to an external power source.

3. The flow divider cone structure for hot runner injection molding according to claim 1, characterized in that, A V-shaped plate is sleeved on the outer side of the movable end of the hydraulic cylinder (240), and the top of the V-shaped plate is fixedly connected to the bottom of the pressure plate (230).

4. The flow divider cone structure for hot runner injection molding according to claim 1, characterized in that, The pressurized water pipe (250) is composed of a thin tube (251), a constriction shell (252) and a nozzle (253). The constriction shell (252) is integrally formed between the thin tube (251) and the nozzle (253). The inner diameter of the thin tube (251) is larger than the inner diameter of the nozzle (253).

5. A flow divider cone structure for hot runner injection molding according to claim 1, characterized in that, The water-blocking ring (320) and the water-storage ring (220) are eccentrically arranged, and both the water-storage ring (220) and the water-blocking ring (320) are made of stainless steel.

6. A flow divider cone structure for hot runner injection molding according to claim 1, characterized in that, A one-way valve (400) is installed on the water inlet pipe (210), and the one-way valve (400) is located between the cone (110) and the water baffle ring (320).

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