Hot runner splitter plate structure with uniform flowing speed
By setting grooves on the upper and lower sides and four end faces of the hot runner manifold, and setting steam heating channels inside, the problem of uneven heating is solved, heating efficiency and temperature uniformity are improved, and uniform distribution of melt is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU MAIERTE MOULD CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-28
AI Technical Summary
The existing hot runner manifold has the heating wire embedded on one side of the plate, resulting in uneven heat distribution and low heating efficiency.
Grooves are provided on the sides, top and bottom sides and four end faces of the plate, and heating wires are wound around them. Steam heating channels are set inside the plate. High-temperature steam assists in heating, and the steam is sealed and connected to the external steam generator by combining the steam pipe and sealing sleeve.
It achieves uniform heating of the plate, improves heating efficiency, and ensures the temperature consistency and flow uniformity of the plastic melt.
Smart Images
Figure CN224170362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot runner manifold technology, specifically to a hot runner manifold structure with uniform flow velocity. Background Technology
[0002] A hot runner manifold, also known as a manifold or hot runner distributor, has the main function of transferring the plastic melt configured by the injection molding machine through the main runner to the manifold. Then, through multiple flow branches within the manifold, it is evenly distributed to each injection nozzle and finally injected into the mold cavity. In this process, the manifold ensures that the temperature of the melt is constant and the flow length is consistent, so that the inside of the mold can be evenly filled by the melt.
[0003] The hot runner manifold structure includes a plate body with hot runner channels inside for conveying molten plastic. Heating wires are embedded around the plate body structure on the upper side to keep the plate body at a high temperature, preventing the molten plastic from solidifying and facilitating injection molding. However, the heating wires of existing hot runner manifolds are generally only embedded on one side of the plate body. This structure is prone to uneven heat distribution and low heating efficiency. Utility Model Content
[0004] The technical problem this invention aims to solve is that the heating wires of existing hot runner manifolds are generally only embedded on one side of the plate, which easily leads to uneven heat distribution and low heating efficiency.
[0005] To solve the above problems, the technical solution adopted by this utility model is a hot runner manifold structure with uniform flow velocity, including a plate body, a groove is formed on the side of the plate body, a heating wire is wound in the groove, a hot runner channel is formed inside the plate body, an inlet is formed on the upper side of the plate body at the middle of the hot runner channel, an outlet is formed on the lower side of the plate body at the end of the hot runner channel, a steam heating channel is formed inside the plate body, and an interface is fixed at both ends of the steam heating channel on one side of the plate body.
[0006] As a further embodiment of this utility model, grooves are formed on the upper and lower sides and four end faces of the plate to facilitate uniform heating of the plate.
[0007] As a further embodiment of this utility model: a steam supply pipe is connected to the interface, and a sealing sleeve is provided for the steam supply pipe and the outer side of the interface to be threaded and rotatably connected, so as to seal and connect the steam heating channel with the external steam generator.
[0008] As a further embodiment of this invention, the steam heating channel is located outside the hot flow channel to facilitate auxiliary heating of the hot flow channel and improve the heating efficiency of the plate.
[0009] As a further embodiment of this invention: the heating wire is electrically connected to an external power source, and the steam supply pipe is connected to an external steam generator.
[0010] Compared with the prior art, the advantages of this utility model are as follows: This application adds grooves wrapped around the upper and lower sides and four end faces of the plate to make the heating wire wrap around the plate structure, so that the plate is heated evenly, and adds steam heating channels to further improve the heating efficiency of the plate through high-temperature steam. Attached Figure Description
[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0012] Figure 1 This is a three-dimensional view of the overall structure of a hot runner manifold with uniform flow velocity according to the present invention.
[0013] Figure 2 This is a bottom perspective view of the plate in the hot runner manifold structure with uniform flow velocity according to this utility model.
[0014] Figure 3 This is a cross-sectional view of the overall structure of a hot runner manifold with uniform flow velocity according to this utility model.
[0015] Figure 4 This is an enlarged view of part A of the hot runner manifold structure with uniform flow velocity according to this utility model.
[0016] In the attached image:
[0017] 1. Plate; 2. Heating wire; 3. Interface; 4. Steam pipe; 5. Sealing sleeve; 1.1. Groove; 1.2. Hot flow channel; 1.3. Inlet; 1.4. Outlet; 1.5. Steam heating channel. Detailed Implementation
[0018] 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.
[0019] This utility model provides a technical solution to address the existing problems mentioned in the background art.
[0020] Combined with appendix Figure 1-3It can be seen that the plate includes a plate body 1, and the side of the plate body 1 is provided with a groove 1.1. The groove 1.1 is provided on the upper and lower sides and four end faces of the plate body 1 to facilitate uniform heating of the plate body 1. Heating wire 2 is wound in the groove 1.1. The plate body 1 is provided with a heat flow channel 1.2. The upper side of the plate body 1 is provided with an inlet 1.3 located in the middle of the heat flow channel 1.2, and the lower side of the plate body 1 is provided with an outlet 1.4 located at the end of the heat flow channel 1.2.
[0021] Combined with appendix Figure 1 , 3 4. It can be seen that a steam heating channel 1.5 is opened inside the plate body 1. The steam heating channel 1.5 is located outside the hot flow channel 1.2 to facilitate auxiliary heating of the hot flow channel 1.2 and improve the heating efficiency of the plate body 1. Interfaces 3 are fixed at both ends of the steam heating channel 1.5 on one side of the plate body 1. A steam supply pipe 4 is connected in the interface 3. A sealing sleeve 5 is threadedly rotated to the outside of the interface 3 to seal the steam heating channel 1.5 with the external steam generator.
[0022] The working principle of this application is as follows: When installing the flow divider, the heating wire 2 is first placed in the groove 1.1, and then the steam heating channel 1.5 is connected to the steam pipe 4 so as to connect with the external steam generator. Then, heating nozzles and other structures are installed. The heating wire 2 wrapped around the outside of the plate 1 can heat the plate 1 evenly, and the steam heating channel 1.5 inside the plate 1 can preheat and assist in heating the plate 1, so as to keep the plate 1 at a uniform high temperature.
[0023] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A hot runner manifold structure with uniform flow velocity, comprising a plate (1), characterized in that: The plate (1) has a groove (1.1) on its side, and a heating wire (2) is wound in the groove (1.1). The plate (1) has a heat flow channel (1.2) inside, and an inlet (1.3) is opened on the upper side of the plate (1) in the middle of the heat flow channel (1.2). An outlet (1.4) is opened on the lower side of the plate (1) at the end of the heat flow channel (1.2). The plate (1) has a steam heating channel (1.5) inside, and an interface (3) is fixed at both ends of the steam heating channel (1.5) on one side of the plate (1).
2. The hot runner manifold structure with uniform flow velocity according to claim 1, characterized in that: The groove (1.1) is formed on the upper and lower sides and four end faces of the plate (1).
3. The hot runner manifold structure with uniform flow velocity according to claim 1, characterized in that: The interface (3) is connected to a steam pipe (4), and the steam pipe (4) is threadedly rotatably connected to the outside of the interface (3) with a sealing sleeve (5).
4. The hot runner manifold structure with uniform flow velocity according to claim 1, characterized in that: The steam heating channel (1.5) is located outside the heat flow channel (1.2).
5. The hot runner manifold structure with uniform flow velocity according to claim 1, characterized in that: The heating wire (2) is electrically connected to an external power source, and the steam pipe (4) is connected to an external steam generator.