Hot runner injection molding flow splitting device

Abstract

The utility model belongs to injection moulding technical field, and disclose a hot runner injection moulds shunt device, including shunt plate body, feed port, a plurality of discharge gate, shunt passage, heating mechanism and temperature control mechanism, the shunt plate body is set up and presents flat structure, shunt passage adopts the structure design of main runner and branch channel, and main runner presents corrugated shape, can realize the even shunt and sufficient mixing of plastic melt, make the plastic melt temperature and flow of each discharge gate output more uniform and consistent, thereby improve the size accuracy and appearance quality of product, temperature sensor and controller, can real -time monitoring and accurate regulation plastic melt's temperature in shunt passage, ensure that plastic melt always keeps suitable temperature in injection moulding process, avoid the product quality problem caused by temperature fluctuation, improved the product's forming quality and stability, the heat insulating layer adopts ceramic fibre material, effectively reduced the heat loss, improved the heating efficiency, reduced the energy consumption.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology, specifically a hot runner injection molding diversion device. Background Technology

[0002] Hot runner technology is widely used in injection molding. By heating and maintaining the temperature of the molten plastic, the hot runner system can effectively reduce solidification in the gating system, thereby improving production efficiency and product quality.

[0003] However, existing hot runner injection molding manifolds have some problems. For example, uneven temperature distribution of the molten plastic during the manifolding process can lead to inconsistent melt viscosity, affecting the molding quality of the product. Furthermore, traditional manifolds need improvement in their manifolding efficiency, failing to achieve uniform distribution of the molten plastic, which in turn affects the dimensional accuracy and appearance quality of the product. In addition, existing heating and temperature control methods are not precise enough, failing to flexibly adjust the temperature according to actual production needs, increasing energy consumption and production costs.

[0004] Therefore, there is an urgent need for a hot runner injection molding splitter device that can effectively solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a hot runner injection molding diversion device to solve the problems of uneven plastic melt temperature, poor diversion effect and inaccurate temperature control in the prior art, thereby improving the molding quality and production efficiency of the product and reducing production costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot runner injection molding diversion device, comprising a diversion plate body, an inlet, multiple outlets, a diversion channel, a heating mechanism, and a temperature control mechanism. The diversion plate body is flat, the diversion channel is disposed inside the diversion plate body, the inlet is disposed on the upper surface of the diversion plate, and the inlet is connected to one end of the diversion channel for introducing molten plastic into the diversion channel. The multiple outlets are evenly distributed on the bottom surface of the diversion plate, and the multiple outlets are respectively connected to the other end of the diversion channel for conveying the diverted molten plastic to each cavity. The heating mechanism is disposed inside the diversion plate body, and the temperature control mechanism is disposed outside the diversion channel.

[0007] The heating mechanism includes multiple heat insulation layers and heating rods. The multiple heating rods are evenly distributed inside the flow divider body. The heating rods are set on the outside of the flow divider channel and are used to heat the plastic melt in the flow divider channel. The heat insulation layers are wrapped around the outer surface of the flow divider body.

[0008] The temperature control mechanism includes a temperature sensor and a controller. The temperature sensor is disposed in the flow distribution channel, and the controller is disposed on the outer surface of the flow distribution plate body. The controller is electrically connected to the temperature sensor and the heating rod.

[0009] Preferably, the diversion channel includes a main channel and multiple branch channels. One end of the main channel is connected to the feed inlet, and the other end of the main channel is connected to one end of each of the multiple branch channels. The other ends of each of the multiple branch channels are respectively connected to each discharge outlet.

[0010] Preferably, the main channel is configured with a corrugated structure.

[0011] Preferably, the heating rod is spirally wound around the outside of the main flow channel of the diversion channel.

[0012] Preferably, the heat insulation layer is made of ceramic fiber material.

[0013] Preferably, a flow regulating valve is provided at the discharge port.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention, by setting up a temperature sensor and controller, can monitor and precisely adjust the temperature of the plastic melt in the diversion channel in real time, ensuring that the plastic melt maintains a suitable temperature during the injection molding process, avoiding product quality problems caused by temperature fluctuations, and improving the molding quality and stability of the product.

[0016] Excellent flow distribution effect: The flow distribution channel adopts a structure design of main channel and branch channel, and the main channel is corrugated, which can realize the uniform flow distribution and full mixing of plastic melt, making the temperature and flow rate of plastic melt output from each outlet more uniform and consistent, thereby improving the dimensional accuracy and appearance quality of the product.

[0017] Energy efficient: The insulation layer uses ceramic fiber material, which effectively reduces heat loss, improves heating efficiency, and reduces energy consumption. At the same time, precise temperature control and good heat distribution reduce scrap rates, improve production efficiency, and lower production costs.

[0018] High flexibility: The flow regulating valve installed at the discharge port can flexibly adjust the flow rate of plastic melt at each discharge port according to different product requirements, meet diverse production requirements, and improve the applicability of the equipment and the flexibility of production. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the internal structure of the diverter plate body in this utility model;

[0021] Figure 3 This is a schematic diagram of the diversion channel in this utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of this utility model.

[0023] In the diagram: 1. Diverter plate body; 2. Inlet; 3. Outlet; 4. Diverter channel; 41. Main channel; 42. Branch channel; 5. Heating mechanism; 51. Insulation layer; 52. Heating rod; 6. Temperature control mechanism; 61. Temperature sensor; 62. Controller. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 4 As shown, this utility model provides a hot runner injection molding manifold device, including a manifold body 1, an inlet 2, multiple outlets 3, a manifold channel 4, a heating mechanism 5, and a temperature control mechanism 6. The manifold body 1 has a flat structure, the manifold channel 4 is disposed inside the manifold body 1, the inlet 2 is disposed on the upper surface of the manifold, and the inlet 2 is connected to one end of the manifold channel 4 for introducing plastic melt into the manifold channel 4. The multiple outlets 3 are evenly distributed on the bottom surface of the manifold, and the multiple outlets 3 respectively... The flow divider is connected to the other end of the flow divider channel 4 to transport the molten plastic after flow divider to each cavity. The heating mechanism 5 is located inside the flow divider body 1, and the temperature control mechanism 6 is located outside the flow divider channel 4. By connecting the feed port 2 to one end of the flow divider channel 4, the function is to introduce the molten plastic into the flow divider channel 4. Multiple discharge ports 3 are evenly distributed on the bottom surface of the flow divider body 1 and are connected to the other end of the flow divider channel 4 respectively to transport the molten plastic after flow divider to each cavity to achieve injection molding.

[0026] The heating mechanism 5 includes multiple heat insulation layers 51 and heating rods 52. The multiple heating rods 52 are evenly distributed inside the manifold body 1. The heating rods 52 are set on the outside of the manifold channel 4 to heat the plastic melt in the manifold channel 4. The heat insulation layers 51 are wrapped around the outer surface of the manifold body 1. By setting the heating rods 52 on the outside of the manifold channel 4, the plastic melt in the manifold channel 4 is heated to ensure that the plastic melt maintains a suitable temperature during the flow process, and avoids the increase of melt viscosity due to temperature drop, which would affect the injection molding effect. The heat insulation layers 51 wrapped around the outer surface of the manifold body 1 can effectively reduce heat loss, improve heating efficiency, and reduce energy consumption.

[0027] The temperature control mechanism 6 includes a temperature sensor 61 and a controller 62. The temperature sensor 61 is installed inside the flow distribution channel 4, and the controller 62 is installed on the outer surface of the flow distribution plate body 1. The controller 62 is electrically connected to the temperature sensor 61 and the heating rod 52. The temperature sensor 61 is installed inside the flow distribution channel 4 to monitor the temperature of the plastic melt in the flow distribution channel 4 in real time. The controller 62 is installed on the outer surface of the flow distribution plate body 1 and is electrically connected to the temperature sensor 61 and the heating rod 52. Based on the temperature information fed back by the temperature sensor 61, the controller 62 can automatically adjust the heating power of the heating rod 52 to achieve precise control of the temperature of the plastic melt in the flow distribution channel 4.

[0028] like Figures 1 to 4 As shown, the diversion channel 4 includes a main channel 41 and multiple branch channels 42. One end of the main channel 41 is connected to the feed port 2, and the other end of the main channel 41 is connected to one end of the multiple branch channels 42. The other ends of the multiple branch channels 42 are respectively connected to each discharge port 3. This structural design allows the plastic melt to be initially distributed through the main channel 41 and then further diverted to each discharge port 3 through the branch channels 42, thereby achieving uniform diversion of the plastic melt.

[0029] It should be noted that the main channel 41 is designed with a corrugated structure. The corrugated main channel 41 can generate a more complex flow field in the plastic melt during the flow process, promote the mixing and homogenization of the melt, and thus improve the temperature uniformity and performance consistency of the plastic melt.

[0030] The heating rod 52 is spirally wound around the outside of the main channel 41 of the diversion channel 4. This winding method allows the heating rod 52 to fit more tightly into the main channel 41, improving the uniformity and efficiency of heating and ensuring that the plastic melt can be fully and uniformly heated in the main channel 41.

[0031] The insulation layer 51 is made of ceramic fiber material, which has good thermal insulation performance, high temperature resistance and chemical stability. It can play a stable role in thermal insulation in high temperature environment for a long time, effectively reduce the heat loss of the diversion plate body 1, and ensure the service life of the device.

[0032] A flow regulating valve is installed at the discharge port 3. By adjusting the flow regulating valve, the flow rate of plastic melt at each discharge port 3 can be precisely controlled according to different injection molding requirements, thereby further improving the molding quality of the product and the flexibility of production.

[0033] Working principle and process: When the injection molding machine starts working, the molten plastic enters the main channel 41 of the distribution channel 4 from the barrel through the feed port 2. Due to the corrugated structure of the main channel 41, the molten plastic generates a complex flow field during its flow, achieving preliminary mixing and homogenization. At the same time, the heating rod 52, which is spirally wound around the outside of the main channel 41, heats the molten plastic, and the ceramic fiber insulation layer 51 effectively reduces heat loss, ensuring that the molten plastic maintains a suitable temperature within the main channel 41.

[0034] As the molten plastic flows within the main channel 41, it is evenly distributed into each branch channel 42 upon reaching the connection point with the branch channels 42. Within the branch channels 42, the molten plastic continues to flow towards each outlet 3. During this process, the temperature sensor 61 monitors the temperature of the molten plastic in the branch channels 4 in real time and feeds the temperature information back to the controller 62. Based on the preset temperature range and the actual monitored temperature data, the controller 62 automatically adjusts the heating power of the heating rod 52 to achieve precise control of the molten plastic temperature.

[0035] When the molten plastic reaches the outlet 3, the operator can adjust the flow rate of the molten plastic at each outlet 3 according to the specific injection molding requirements by adjusting the flow regulating valve, so that the molten plastic enters the injection mold cavity at a suitable flow rate and temperature to complete the injection molding process.

[0036] Throughout the entire operation, this hot runner injection molding manifold can operate stably and efficiently, achieving uniform flow distribution of the plastic melt, precise temperature control, and flexible flow adjustment, thereby ensuring high-quality product production.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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 injection molding manifold device, comprising a manifold plate body (1), characterized in that: It includes an inlet (2), multiple outlets (3), a diversion channel (4), a heating mechanism (5), and a temperature control mechanism (6). The diversion plate body (1) is flat. The diversion channel (4) is located inside the diversion plate body (1). The inlet (2) is located on the upper surface of the diversion plate. The inlet (2) is connected to one end of the diversion channel (4) to introduce the plastic melt into the diversion channel (4). Multiple outlets (3) are evenly distributed on the bottom surface of the diversion plate. Multiple outlets (3) are connected to the other end of the diversion channel (4) to transport the diverted plastic melt to each cavity. The heating mechanism (5) is located inside the diversion plate body (1). The temperature control mechanism (6) is located outside the diversion channel (4). The heating mechanism (5) includes multiple heat insulation layers (51) and heating rods (52). The multiple heating rods (52) are evenly distributed inside the diversion plate body (1). The heating rods (52) are set on the outside of the diversion channel (4) for heating the plastic melt in the diversion channel (4). The heat insulation layer (51) is wrapped around the outer surface of the diversion plate body (1). The temperature control mechanism (6) includes a temperature sensor (61) and a controller (62). The temperature sensor (61) is located in the diversion channel (4), and the controller (62) is located on the outer surface of the diversion plate body (1). The controller (62) is electrically connected to the temperature sensor (61) and the heating rod (52).

2. The hot runner injection molding splitter according to claim 1, characterized in that: The diversion channel (4) includes a main channel (41) and multiple branch channels (42). One end of the main channel (41) is connected to the feed inlet (2), and the other end of the main channel (41) is connected to one end of multiple branch channels (42). The other ends of the multiple branch channels (42) are respectively connected to each discharge port (3).

3. A hot runner injection molding splitter according to claim 2, characterized in that: The main channel (41) is configured with a corrugated structure.

4. A hot runner injection molding splitter according to claim 1, characterized in that: The heating rod (52) is spirally wound around the outside of the main channel (41) of the diversion channel (4).

5. A hot runner injection molding splitter according to claim 1, characterized in that: The heat insulation layer (51) is made of ceramic fiber material.

6. A hot runner injection molding manifold device according to claim 1, characterized in that: A flow regulating valve is provided at the discharge port (3).

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