Double-end pin-point gate

Abstract

The utility model discloses a double-end pin-point gate, which relates to the technical field of injection molding processing, and comprises a gate main body, a main runner is arranged on the gate main body, a pin-point pouring head is arranged in the gate main body, two auxiliary runners are arranged on the pin-point pouring head, the main runner corresponds to the two auxiliary runners, a fixed part is arranged on the gate main body, and the fixed part is fixed on the gate main body. According to the utility model, the sprue main body is connected with a nozzle of an injection molding machine or a similar feeding part to receive a molten plastic material from the injection molding machine, and the molten plastic material enters the main runner and then flows into the auxiliary runner, so that the molten plastic material is accurately guided into a cavity of a mold and quickly fills the cavity of the mold, the production efficiency is improved, and the production cost is reduced. Therefore, the double-end pin-point gate can more effectively control flowing of a molten plastic material in a mold, mold filling is facilitated, the forming quality of an injection molding part is improved, traces left on the surface of the injection molding part by the double-end pin-point gate are small, trimming is easy, and the influence on the appearance of the injection molding part is small.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a double-point gate. Background Technology

[0002] Injection molding is a crucial step in plastic product manufacturing. It is typically performed using an injection molding machine, where molten plastic is injected into a mold through a gate under pressure, then cooled and solidified to obtain the desired plastic part. Injection molding offers advantages such as short molding cycles, high production efficiency, and excellent product quality. It allows for the easy production of plastic parts of various shapes and sizes to meet diverse application needs. Injection molding is widely used in the automotive, electronics, home appliance, medical, and packaging industries. For example, car bumpers and door panels, television back covers, and various plastic packaging containers are all produced through injection molding.

[0003] In the existing technology, during the processing of injection molded parts, it is necessary to inject molten plastic material into the mold, which requires the use of a point gate. However, most point gates are not convenient for effectively controlling the flow of molten plastic material in the mold, which may affect the mold filling effect and result in a slow mold filling speed.

[0004] Therefore, a double-headed gating system is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a double-headed gate to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A dual-headed gating system includes a gating body, characterized in that the gating body is provided with a main flow channel, the gating body is provided with a gating head inside the gating body, the gating head is provided with two secondary flow channels, and the main flow channel corresponds to the two secondary flow channels, the gating body is provided with a fixing member, and the gating body is provided with a heat insulation pipe outside the gating body.

[0008] Furthermore, the main flow channel and the two secondary flow channels are all configured as circular flow channels, and the flow pattern of the main flow channel and the two secondary flow channels is configured as a bifurcation pattern.

[0009] Furthermore, the connection between the gate body and the injection nozzle is a sliding connection, and the connection between the gate body and the fixing member is a threaded connection, with the fixing member in contact with the injection nozzle.

[0010] Furthermore, the bottom of the pouring nozzle is shaped like a cone, and there are two cones.

[0011] Furthermore, the material of the heat insulation tube is set as ceramic fiber.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention, through the configuration of point gates, main runners, and secondary runners, connects the gate body to the injection molding machine nozzle or similar feeding component during use. It receives molten plastic material from the injection molding machine, which then enters the main runner and flows into the secondary runner, precisely guiding the molten plastic material into the mold cavity and quickly filling it. This improves production efficiency. The dual-point gate design allows for more effective control of the molten plastic material flow within the mold, facilitating mold filling and improving the molding quality of the injection molded parts. The dual-point gate leaves smaller marks on the surface of the plastic part, making it easy to repair and minimizing its impact on the appearance. It is suitable for open-mold injection molding of smaller products and is highly practical. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0016] Figure 3 This is an exploded view of the structure of this utility model.

[0017] Attached reference numerals: 1. Main gate; 2. Main runner; 3. Point gate; 4. Secondary runner; 5. Fixture; 6. Insulation pipe. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figure 1-3 As shown, a dual-point gating system includes a gating body 1, a main runner 2 on the gating body 1, a point gating head 3 inside the gating body 1, and two secondary runners 4 on the point gating head 3, with the main runner 2 corresponding to the two secondary runners 4. A fixing member 5 is provided on the gating body 1, and a heat insulation pipe 6 is provided on the outside of the gating body 1. In this embodiment, during use, by connecting the gating body 1 to the injection molding machine nozzle or a similar feeding component, molten plastic material from the injection molding machine is received. The molten plastic material enters the main runner 2 and then flows into the secondary runners 4, accurately guiding the molten plastic material into the mold cavity and quickly filling the mold cavity, improving production efficiency. Thus, the dual-point gating system can more effectively control the flow of molten plastic material in the mold, which is beneficial for mold filling and improves the molding quality of the injection molded parts. The dual-point gating system leaves smaller marks on the surface of the plastic part, is easy to repair, and has little impact on the appearance of the plastic part. It is suitable for open-mold injection molding of smaller products and has strong practicality.

[0023] like Figure 2 As shown, the main runner 2 and the two secondary runners 4 are all circular runners, and the flow pattern of the main runner 2 and the two secondary runners 4 is bifurcated. In this embodiment, the circular shape and bifurcated flow pattern of the main runner 2 and the two secondary runners 4 enable the molten plastic material to be evenly distributed into the two secondary runners 4, quickly filling the mold cavity, improving production efficiency, controlling the flow direction and speed of the molten plastic material in the mold, reducing flow resistance, avoiding eddies and dead zones, and forming a more balanced pressure distribution in the mold cavity, reducing defects such as deformation and shrinkage cavities caused by uneven pressure, and improving the quality of the injection molded parts.

[0024] like Figure 1-3As shown, the connection between the gate body 1 and the point nozzle 3 is a sliding connection, and the connection between the gate body 1 and the fixing member 5 is a threaded connection, with the fixing member 5 in contact with the point nozzle 3. In this embodiment, the connection between the point nozzle 3 and the fixing member 5 is designed to facilitate assembly and disassembly.

[0025] like Figure 1-3 As shown, the bottom of the injection nozzle 3 is shaped as a cone, and there are two cones. In this embodiment, the design of the two cones can more effectively guide the flow of molten plastic material in the mold, ensuring that the molten plastic material enters the mold cavity evenly and stably, thereby improving the molding quality of the injection molded part, and making it easy to separate from the injection molded part after injection molding, which facilitates demolding and subsequent finishing work. At the same time, the gate marks are also smaller, which has little impact on the appearance of the injection molded part.

[0026] like Figure 1-3 As shown, the material of the heat insulation pipe 6 is ceramic fiber. In this embodiment, ceramic fiber has good high temperature resistance and heat insulation performance, can withstand high temperatures while maintaining a low thermal conductivity, and also has good flexibility and mechanical impact resistance, making it suitable for heat insulation of complex-shaped point gates.

[0027] In summary, during use, by connecting the gate body 1 to the injection molding machine nozzle or similar feeding component, molten plastic material from the injection molding machine is received. The molten plastic material enters the main runner 2 and then flows into the secondary runners 4, precisely guiding the molten plastic material into the mold cavity and quickly filling the mold cavity, thus improving production efficiency. This allows for more effective control of the flow of molten plastic material in the mold, facilitating mold filling and improving the molding quality of the injection molded parts. The dual-point gate leaves smaller marks on the surface of the plastic part, is easy to repair, and has minimal impact on the appearance of the plastic part. It is suitable for open-mold injection molding of smaller products, making it highly practical. The circular shape and branching flow design of the main runner 2 and the two secondary runners 4 allow the molten plastic material to be evenly distributed into the two secondary runners 4, quickly filling the mold cavity, improving production efficiency, and controlling the flow of molten plastic material in the mold. The flow direction and speed are controlled to reduce flow resistance, avoid eddies and dead zones, and form a more balanced pressure distribution in the mold cavity. This reduces defects such as deformation and shrinkage cavities caused by uneven pressure, thus improving the quality of the injection molded parts. The connection between the point gate 3 and the fixing part 5 facilitates assembly and disassembly. The design of the two conical shapes can more effectively guide the flow of molten plastic material in the mold, ensuring that the molten plastic material enters the mold cavity evenly and stably, thereby improving the molding quality of the injection molded parts. It is also easy to separate from the injection molded parts after injection molding, which facilitates demolding and subsequent finishing work. At the same time, the gate marks are also smaller, which has little impact on the appearance of the injection molded parts. Ceramic fiber has good high temperature resistance and heat insulation properties, can withstand high temperatures while maintaining a low thermal conductivity, and also has good flexibility and mechanical impact resistance, making it suitable for heat insulation of complex-shaped point gates.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-ended gate, comprising a gate body (1), characterized in that, The main gate body (1) is provided with a main flow channel (2), and the interior of the main gate body (1) is provided with a spot sprue (3). The spot sprue (3) is provided with two secondary flow channels (4), and the main flow channel (2) corresponds to the two secondary flow channels (4). The main gate body (1) is provided with a fixing member (5), and the exterior of the main gate body (1) is provided with a heat insulation pipe (6).

2. A double-headed gate according to claim 1, characterized in that, The main flow channel (2) and the two secondary flow channels (4) are all set as circular flow channels, and the flow form of the main flow channel (2) and the two secondary flow channels (4) is set as a bifurcation form.

3. A double-headed gate according to claim 1, characterized in that, The connection between the gate body (1) and the point gating head (3) is a sliding connection, and the connection between the gate body (1) and the fixing member (5) is a threaded connection, and the fixing member (5) is in contact with the point gating head (3).

4. A double-headed gate according to claim 1, characterized in that, The bottom of the point pouring head (3) is shaped as a cone, and there are two cones.

5. A double-headed gate according to claim 1, characterized in that, The material of the heat insulation pipe (6) is ceramic fiber.

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