A hot runner mold manifold
By designing through grooves and threaded connections on the hot runner mold manifold, the problem of inconvenient maintenance caused by pipe blockage or foreign objects is solved, enabling quick disassembly and installation, improving maintenance efficiency, and reducing resource waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TOPWORTH HOT RUNNER TECH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-31
AI Technical Summary
Existing hot runner mold manifolds are inconvenient to maintain when the pipeline is blocked or foreign objects are present, leading to the need for complete replacement and resulting in a waste of resources.
The design features through slots at the bottom and top of the upper and lower manifolds, respectively, and allows for quick disassembly and installation via threaded connections and clamping structures. The main and secondary pipelines are secured with threads and nuts on the outside, allowing for individual replacement or maintenance of pipeline components.
It improves installation stability and ease of maintenance, reduces resource waste, and facilitates inspection and maintenance.
Smart Images

Figure CN224576080U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot runner mold technology, and in particular to a hot runner mold manifold. Background Technology
[0002] The runner mold manifold is the core component of the hot runner system and plays a crucial role in the injection molding process. It is mainly used to evenly and stably distribute the molten plastic injected by the injection molding machine nozzle to each hot runner nozzle, and then transport it to the mold cavity. Its structure is usually designed according to the mold cavity layout, and the material is mostly selected from alloy materials with good thermal conductivity, high temperature resistance and corrosion resistance to ensure stable operation in high temperature and high pressure environment.
[0003] The utility model patent with patent number 202420278735.X discloses a hot runner mold manifold. This utility model, through the setting of a self-locking transmission component, allows the upper and lower manifolds to be assembled by aligning the threaded rods on the upper manifold with the threaded holes and placing them above the lower manifold. Rotating the knob drives all the threaded rods to rotate and screw them into the threaded holes through the self-locking transmission component, which can assemble the upper and lower manifolds, reducing the need for two people to assemble them and simplifying the operation.
[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that although the hot runner mold manifold can be assembled quickly, its main flow channel and branch flow channel are both located inside the manifold. If the pipeline is blocked or there are foreign objects in the pipeline, it is very inconvenient to repair. If the pipeline is damaged and the foreign objects cannot be removed, the entire manifold needs to be replaced, resulting in a waste of resources.
[0005] Therefore, it is necessary to invent a hot runner mold manifold to solve the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide a hot runner mold manifold to solve the problem mentioned in the background art. Although the hot runner mold manifold can be quickly assembled, its main channel and branch channels are both located inside the manifold. If the pipeline is blocked or there are foreign objects in the pipeline, it is very inconvenient to repair. If the pipeline is damaged and the foreign objects cannot be removed, the entire manifold needs to be replaced, resulting in a waste of resources.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a hot runner mold manifold, comprising an upper manifold and a lower manifold, wherein the upper manifold is disposed at the top of the lower manifold, characterized in that: a third through groove is provided at the bottom end of the upper manifold, and a first through groove is provided at the top end of the lower manifold, wherein the third through groove and the first through groove are correspondingly provided, and a second through groove is provided on both sides of the first through groove;
[0008] Pipeline assemblies are provided on the inner sides of the upper and lower flow dividers. The pipeline assemblies include a main pipeline, a secondary pipeline, a connecting pipe, and a jet pipe. The secondary pipeline is fixedly connected to the bottom end of the main pipeline. There are two connecting pipes, which are symmetrically fixedly connected to both sides of the secondary pipeline. The jet pipe is fixedly connected to the bottom end of the connecting pipe. The main pipeline, secondary pipeline, connecting pipe, and jet pipe are all interconnected.
[0009] The top of the upper diverter plate is provided with a second through hole, the inner side of the second through groove is provided with a first through hole, the second through hole is provided with a corresponding main pipeline, the first through hole is provided with a corresponding jet pipe, and the bottom end of the jet pipe is provided with a jet head.
[0010] As a preferred embodiment, the outer sides of the main pipeline, the secondary pipeline, and the jet pipe are all provided with external threads, and the inner side of the secondary pipeline is provided with internal threads.
[0011] As a preferred embodiment, the outer sides of the main pipeline and the secondary pipeline can be connected with nuts via external threads, and the inner side of the secondary pipeline can be provided with a sealing head.
[0012] As a preferred embodiment, the bottom four corners of the upper diverter plate are fixedly connected with clamping plates, and the four corners of the main pipeline are provided with clamping slots. The clamping plates are slidably connected to the inner side of the clamping slots, and the inner side of the clamping plates is provided with fastening bolts. The clamping plates are fixedly connected to the inner side of the clamping slots by fastening bolts.
[0013] As a preferred embodiment, a first arc-shaped heating plate and a second arc-shaped heating plate are provided on the inner side of the bottom end of the upper diverter plate. The first arc-shaped heating plate is provided corresponding to the connecting pipe, and the second arc-shaped heating plate is provided corresponding to the secondary pipe.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] This utility model features an upper diversion plate and a main pipeline that can be quickly spliced together. The bottom of the upper diversion plate and the top of the lower diversion plate are provided with a first through groove and a second through groove, which can effectively place the secondary pipeline and connecting pipeline between the upper and lower diversion plates. At the same time, nuts are threaded to the outside of the main pipeline and the secondary pipeline, which can effectively press and fix them between the upper and lower diversion plates, thus improving the stability of the installation. In addition, when the main pipeline needs to be replaced or maintained, it can be quickly disassembled, replaced or maintained, which facilitates inspection and maintenance.
[0016] This utility model features a secondary pipeline fixedly connected to the bottom of the main pipeline. The secondary pipeline has internal threads on its inner side, allowing it to be connected to other diverter plates when needed for assembly and use. One end of the secondary pipeline can be sealed with a plug, and the other end can be connected to other diverter plates according to actual usage requirements. This allows the diverter plates to be spliced together, increasing the number of secondary modules and improving the overall performance. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the upper diverter plate in this utility model;
[0019] Figure 3 This is a schematic diagram of the lower flow divider of this utility model;
[0020] Figure 4 This is a schematic diagram of the main pipeline in this utility model.
[0021] In the picture:
[0022] 1. Upper distributor plate; 11. Lower distributor plate; 112. Slot; 113. First through slot; 114. Second through slot; 115. First through hole; 13. Fastening bolt; 14. Clip plate; 15. Third through slot; 16. Second through hole; 17. First arc-shaped heating plate; 18. Second arc-shaped heating plate;
[0023] 2. Main pipe; 21. Nut; 22. Spray head; 23. Secondary pipe; 231. External thread; 232. Internal thread; 24. Plug; 25. Connecting pipe; 26. Spray pipe. 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] Please see the appendix Figure 1 - Appendix Figure 4 A hot runner mold manifold includes an upper manifold 1 and a lower manifold 11. The upper manifold 1 is disposed at the top of the lower manifold 11. A third through groove 15 is provided at the bottom of the upper manifold 1. A first through groove 113 is provided at the top of the lower manifold 11. The third through groove 15 and the first through groove 113 are correspondingly provided. A second through groove 114 is provided on both sides of the first through groove 113.
[0026] Pipeline assemblies are provided on the inner sides of the upper splitter plate 1 and the lower splitter plate 11. The pipeline assemblies include a main pipeline 2, a secondary pipeline 23, a connecting pipe 25, and a jet pipe 26. The secondary pipeline 23 is fixedly connected to the bottom end of the main pipeline 2. There are two connecting pipes 25, which are symmetrically fixedly connected to both sides of the secondary pipeline 23. The jet pipe 26 is fixedly connected to the bottom end of the connecting pipe 25. The main pipeline 2, the secondary pipeline 23, the connecting pipe 25, and the jet pipe 26 are all interconnected.
[0027] Specifically, by setting up an upper diversion plate 1 and a main pipe 2, they can be quickly spliced together. The bottom end of the upper diversion plate 1 and the top end of the lower diversion plate 11 are provided with a first through groove 113 and a second through groove 114, which can effectively confine the secondary pipe 23 and the connecting pipe 25 between the upper diversion plate 1 and the lower diversion plate 11. At the same time, the nut 21 is threadedly connected to the outside of the main pipe 2 and the secondary pipe 23, which can effectively press and fix them between the upper diversion plate 1 and the lower diversion plate 11, effectively improving the stability of the installation. At the same time, when the main pipe 2 needs to be replaced or maintained, it can be quickly disassembled and replaced or maintained, which facilitates inspection and maintenance.
[0028] Please see the appendix Figure 2 , Figure 3 and Figure 4 The top of the upper diverter plate 1 is provided with a second through hole 16, and the inner side of the second through groove 114 is provided with a first through hole 115. The second through hole 16 is corresponding to the main pipeline 2, and the first through hole 115 is corresponding to the jet pipe 26. The bottom end of the jet pipe 26 is provided with a jet head 22.
[0029] Specifically, by setting a second through hole 16, the main pipeline 2 can pass through the second through hole 16, and by setting a first through hole 115, the jet pipe 26 can pass through the first through hole 115, thereby facilitating quick assembly and easy disassembly to remove the main pipeline 2 from the inside of the upper diverter plate 1.
[0030] Please see the appendix Figure 4 The main pipe 2, the secondary pipe 23 and the jet pipe 26 are all provided with external threads 231 on the outside, and the secondary pipe 23 is provided with internal threads 232 on the inside. Nuts 21 can be threaded to the outside of the main pipe 2 and the secondary pipe 23 through the external threads 231, and a plug head 24 can be provided on the inside of the secondary pipe 23.
[0031] Specifically, by providing external threads 231 on the outer sides of both the main pipe 2 and the secondary pipe 23, nuts 21 can be used to fix the main pipe 2 and the secondary pipe 23 to the top and side of the upper diverter plate 1, respectively. This effectively improves the stability of the installation between the main pipe 2 and the secondary pipe 23 and the upper diverter plate 1 and the lower diverter plate 11. When it is necessary to connect the secondary diverter plate at the secondary pipe 23, a plugging head 24 can be threaded into one of the secondary pipes 23 to block one side of the secondary pipe 23, while the other secondary pipe 23 can be used to connect the secondary diverter plate, thereby effectively increasing the number of jet pipes 26 and increasing the jet volume.
[0032] Please see the appendix Figure 1 and Figure 2 The bottom four corners of the upper diversion plate 1 are fixedly connected with a card plate 14, and the four corners of the main pipeline 2 are provided with a card slot 112. The card plate 14 is slidably connected to the inside of the card slot 112. The inside of the card plate 14 is provided with a fastening bolt 13, and the card plate 14 is fixedly connected to the inside of the card slot 112 by the fastening bolt 13.
[0033] Specifically, a retaining plate 14 is fixedly connected to each of the four corners at the bottom of the upper diverter plate 1, and a retaining groove 112 is provided at each of the four corners of the main pipeline 2. The retaining plate 14 can be slidably connected to the inside of the retaining groove 112. When it is necessary to assemble the upper diverter plate 1 and the main pipeline 2, the retaining plate 14 can be slid to the inside of the retaining groove 112. The inside of the retaining plate 14 and the inside of the retaining groove 112 are provided with threaded holes corresponding to the fastening bolts 13, so that the retaining plate 14 can be fixedly connected to the inside of the retaining groove 112 by the fastening bolts 13.
[0034] Please see the appendix Figure 2 and Figure 4 The inner side of the bottom end of the upper diversion plate 1 is provided with a first arc-shaped heating plate 17 and a second arc-shaped heating plate 18. The first arc-shaped heating plate 17 is correspondingly arranged with the connecting pipe 25, and the second arc-shaped heating plate 18 is correspondingly arranged with the secondary pipe 23.
[0035] Specifically, the upper inner wall at the bottom of the upper diverter plate 1 has grooves corresponding to the first arc-shaped heating plate 17 and the second arc-shaped heating plate 18, so that the first arc-shaped heating plate 17 and the second arc-shaped heating plate 18 can be snapped into the inner side of the grooves. A silicone pad is provided at the bottom, which effectively increases the contact effect with the connecting pipe 25 and the secondary pipe 23. After the first arc-shaped heating plate 17 and the second arc-shaped heating plate 18 come into contact with the secondary pipe 23 and the connecting pipe 25, they can effectively heat the inside of the secondary pipe 23 and the connecting pipe 25, effectively melting the plastic inside. The first arc-shaped heating plate 17 and the second arc-shaped heating plate 18 are electrically connected to the power supply through wires, so as to supply power.
[0036] The working principle of this utility model is as follows: During assembly, the jet pipe 26 is inserted through the first through hole 115, so that the connecting pipe 25 is located inside the second through groove 114, and the auxiliary pipe 23 is located inside the first through groove 113. Then, the upper diverter plate 1 is placed from top to bottom on the top of the lower diverter plate 11, and the second through hole 16 is sleeved on the outside of the main pipe 2. The upper diverter plate 1 has four fixedly connected clamping plates 14 at its bottom corners, and the main pipe 2 has four fixedly connected clamping plates 14 at its bottom corners. Both are provided with a slot 112, and the card plate 14 can be slidably connected to the inside of the slot 112. When it is necessary to assemble the upper diverter plate 1 and the main pipeline 2, the card plate 14 can be slid to the inside of the slot 112. The inside of the card plate 14 and the inside of the slot 112 are provided with threaded holes corresponding to the fastening bolts 13, so that the card plate 14 can be fixedly connected to the inside of the slot 112 by the fastening bolts 13, which facilitates the fixing of the upper diverter plate 1 and the lower diverter plate 11.
[0037] Then, the nut 21 is threaded onto the outside of the main pipeline 2, so that the nut 21 is pressed against the top of the upper diverter plate 1 to reinforce the main pipeline 2. At the same time, the nut 21 is threaded onto the outside of the secondary pipeline 23, so that the nut 21 is pressed against the outside of the upper diverter plate 1 and the lower diverter plate 11, thereby effectively reinforcing the secondary pipeline 23.
[0038] Then, the nozzle 22 is threaded to the bottom end of the nozzle pipe 26, so that the main pipe 2 at the top is connected to the injection pipe, and injection molding is performed into the entire pipe. The auxiliary pipe 23 and the connecting pipe 25 are heated by setting the first arc heating plate 17 and the second arc heating plate 18, so that the plastic in the auxiliary pipe 23 and the connecting pipe 25 is always kept in a molten state.
[0039] If the secondary pipe 23 and the connecting pipe 25 become blocked or damaged, the upper diverter plate 1 and the lower diverter plate 11 can be quickly disassembled, and the pipe assembly can be removed from the upper diverter plate 1 and the lower diverter plate 11 for maintenance or replacement.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hot runner mold manifold comprising an upper manifold (1) and a lower manifold (11), the upper manifold (1) being disposed on top of the lower manifold (11), characterized in that: The bottom end of the upper diversion plate (1) is provided with a third through groove (15), the top end of the lower diversion plate (11) is provided with a first through groove (113), the third through groove (15) and the first through groove (113) are provided correspondingly, and the two sides of the first through groove (113) are provided with second through grooves (114). Pipeline assemblies are provided on the inner sides of the upper diverter plate (1) and the lower diverter plate (11). The pipeline assemblies include a main pipeline (2), a secondary pipeline (23), a connecting pipe (25), and a jet pipe (26). The secondary pipeline (23) is fixedly connected to the bottom end of the main pipeline (2). There are two connecting pipes (25) which are symmetrically fixedly connected to both sides of the secondary pipeline (23). The jet pipe (26) is fixedly connected to the bottom end of the connecting pipe (25). The main pipeline (2), the secondary pipeline (23), the connecting pipe (25), and the jet pipe (26) are all interconnected.
2. A hot runner manifold as defined in claim 1, wherein: The top of the upper diverter plate (1) is provided with a second through hole (16), and the inner side of the second through groove (114) is provided with a first through hole (115). The second through hole (16) is correspondingly provided with the main pipeline (2), and the first through hole (115) is correspondingly provided with the jet pipe (26). The bottom end of the jet pipe (26) is provided with a jet head (22).
3. A hot runner manifold as defined in claim 2, wherein: The main pipeline (2), the secondary pipeline (23) and the jet pipe (26) are all provided with external threads (231) on the outside, and the secondary pipeline (23) is provided with internal threads (232) on the inside.
4. A hot- runner manifold plate as defined in claim 3, wherein: The outer sides of the main pipeline (2) and the secondary pipeline (23) are connected to nuts (21) by external threads (231), and the inner side of the secondary pipeline (23) is provided with a plug (24).
5. A hot- runner manifold plate as defined in claim 4, wherein: The bottom four corners of the upper diversion plate (1) are fixedly connected with a card plate (14), and the four corners of the main pipeline (2) are provided with a card slot (112). The card plate (14) is slidably connected to the inside of the card slot (112). The inside of the card plate (14) is provided with a fastening bolt (13). The card plate (14) is fixedly connected to the inside of the card slot (112) by the fastening bolt (13).
6. A hot- runner manifold plate as defined in claim 5, wherein: The inner side of the bottom end of the upper diversion plate (1) is provided with a first arc-shaped heating plate (17) and a second arc-shaped heating plate (18). The first arc-shaped heating plate (17) is correspondingly arranged with the connecting pipe (25), and the second arc-shaped heating plate (18) is correspondingly arranged with the secondary pipe (23).