Heat balance splitter plate of injection mold
By designing a heat balance manifold for injection molds, using heating resistance wire preheating and rounded corners to optimize flow distribution, combined with a cleaning piston block and an electric telescopic rod, the problem of uneven flow distribution on the manifold was solved, improving the flow distribution effect and pipe cleanliness, and enhancing the quality of injection molding.
Patent Information
- Application Number
- CN202423297842.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The manifold in existing injection molds injects directly from the main injection nozzle, resulting in uneven flow in the manifold and affecting the manifold effect.
A thermal balance manifold for injection molds was designed, comprising a flow guide cavity, a volume cavity, a flow distribution pipe, and a heating guide plate. The raw material is preheated using a heating resistance wire, and the flow distribution is optimized through rounded corners and connecting conduits. The inner wall of the pipe is cleaned by a cleaning piston block and an electric telescopic rod.
This improves the flow uniformity and diversion effect of the diversion pipe, while also facilitating pipe cleaning, avoiding material residue, and improving injection molding quality.
Smart Images
Figure CN223507597U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hot runner mold technology, specifically relating to the heat balance manifold of injection molds. Background Technology
[0002] Hot runners are heating systems used in injection molds to inject molten plastic particles into the mold cavity. Hot runner molds are a new type of mold where the runner and sprue of traditional molds or three-plate molds are heated so that the runner and sprue do not need to be removed during each injection molding process. Hot runners keep the plastic in the runner and gate in a molten state by heating. A hot runner system generally consists of several parts, including hot nozzles, manifolds, temperature control boxes, and accessories.
[0003] The manifold assembly is a component in a hot runner system used to heat and distribute materials. When the manifold is in use, because the material is injected directly from the main injection nozzle, the flow rate in the manifold tube will be uneven, resulting in an unsatisfactory distribution effect and certain limitations. Utility Model Content
[0004] The purpose of this utility model is to provide a thermal balance manifold for injection molds, in order to solve the problem mentioned in the background art that when existing manifolds are used, the flow rate in the manifold tube is uneven due to direct injection from the main injection nozzle, resulting in an unsatisfactory manifold effect and certain limitations.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat balance manifold for injection molds, comprising a flow guiding cavity, with a volumetric cavity connected to both ends of the flow guiding cavity, and flow distribution pipes connected to both sides of the lower end of the volumetric cavity, an injection nozzle disposed at the center of the upper end of the flow guiding cavity, a heating guide plate embedded at the lower end of the flow guiding cavity, a flow distribution ramp disposed on the inner wall of the heating guide plate, a heating resistance wire fixedly connected inside the heating guide plate, and a storage battery fixedly connected to one side of the heating guide plate, the heating resistance wire being electrically connected to the storage battery via a wire.
[0006] Preferably, the two sides of the volume cavity are fixedly connected to the diversion cavity, and the two sides of the volume cavity are provided with arc-shaped rounded corners. The two diversion cavities are connected by a connecting conduit.
[0007] Preferably, the upper end of the volume cavity is connected to a guide tube, and a cleaning piston block is slidably sleeved inside the guide tube. A connecting rod is fixedly connected to the upper end of the cleaning piston block.
[0008] Preferably, a fixed circular frame is fixedly connected to the upper end of the connecting rod, and an electric telescopic rod is fixedly connected to the center of the lower end of the fixed circular frame. The electric telescopic rod is fixedly connected to the upper end of the volume cavity.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] 1. This utility model can pre-collect and divert raw materials into a collection chamber, and then flow out from the diversion pipe, so that each diversion pipe can divert raw materials. At the same time, during the diversion process, the raw materials can come into contact with the heating guide plate, so that the raw materials can be fully heated.
[0011] 2. This utility model adopts a cleaning method that can unclog the inner wall of the diversion pipe, so that the inner wall of the pipe can be quickly unclogged and cleaned, avoiding the inconvenience of cleaning residual materials inside the pipe. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the heating guide plate of this utility model;
[0014] Figure 3 This is a schematic diagram of the internal structure of the volumetric cavity of this utility model;
[0015] Figure 4 This is a schematic diagram of the structure of the guiding circular tube of this utility model.
[0016] In the diagram: 1. Guide cavity; 2. Volume cavity; 3. Diverter discharge pipe; 4. Injection nozzle; 5. Heating guide plate; 6. Diverter ramp; 7. Heating resistance wire; 8. Battery; 9. Diverter cavity; 10. Rounded corner; 11. Guide tube; 12. Cleaning piston block; 13. Connecting rod; 14. Fixing frame; 15. Electric telescopic rod; 16. Connecting conduit. Detailed Implementation
[0017] 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.
[0018] Please see Figure 1-4This utility model provides a technical solution: a heat balance manifold for an injection mold, including a flow guide cavity 1, with a volume chamber 2 connected to both ends of the flow guide cavity 1, and flow distribution pipes 3 connected to both sides of the lower end of the volume chamber 2. An injection nozzle 4 is provided at the center of the upper end of the flow guide cavity 1, and a heating guide plate 5 is embedded at the lower end of the flow guide cavity 1. A flow distribution ramp 6 is provided on the inner wall of the heating guide plate 5. A heating resistance wire 7 is fixedly connected inside the heating guide plate 5, and a storage battery 8 is fixedly connected to one side of the heating guide plate 5. The heating resistance wire 7 is electrically connected to the storage battery 8 through a wire.
[0019] In this embodiment, the heating resistance wire 7 is pre-connected to the power supply to heat the heating guide plate 5, which rapidly heats the diversion ramp 6. When the raw material flows in from the injection nozzle 4, it can be diverted from the diversion ramp 6 to the two side volume chambers 2. During the diversion process, the raw material can fully contact the diversion ramp 6, thereby fully heating the raw material. The raw material flows into the volume chamber 2 for collection. After a certain volume is collected, it flows out from the diversion discharge pipe 3 for diversion. This design method can pre-collect the diverted raw material into a collection chamber and then flow out from the diversion pipe, so that each diversion pipe can divert the raw material. At the same time, during the diversion process, the raw material can contact the heating guide plate, which can fully heat the raw material.
[0020] Specifically, the two sides of the volume cavity 2 are fixedly connected to the diversion cavity 9, and the two sides of the volume cavity 2 are provided with arc-shaped rounded corners 10. The two diversion cavities 9 are connected by the connecting conduit 16.
[0021] In this embodiment, the rounded corners 10 inside the volume cavity 2 allow the raw materials to flow into the diversion cavity 9. The two diversion cavities 9 are connected to each other through the connecting conduit 16, which makes the raw materials flowing in from both sides more uniform.
[0022] Specifically, the upper end of the volume chamber 2 is connected to a guide tube 11, and a cleaning piston block 12 is slidably sleeved inside the guide tube 11. A connecting rod 13 is fixedly connected to the upper end of the cleaning piston block 12.
[0023] In this embodiment, the connecting rod 13 can drive the cleaning piston block 12 to rise and fall when pressed, allowing the cleaning piston block 12 to enter the interior of the diversion discharge pipe 3. On the one hand, it can control the start and stop of the diversion discharge pipe 3, and on the other hand, it can clean the interior of the diversion discharge pipe 3 during the sliding process, avoiding the residue of raw materials on the inner wall, which would affect the diversion of the pipe. This design adopts a cleaning method that can unclog the inner wall of the diversion pipe, so that the inner wall of the pipe can be quickly unclogged and cleaned, avoiding the inconvenience of cleaning the residual raw materials inside the pipe.
[0024] Specifically, a fixed circular frame 14 is fixedly connected to the upper end of the connecting rod 13, and an electric telescopic rod 15 is fixedly connected to the center of the lower end of the fixed circular frame 14. The electric telescopic rod 15 is fixedly connected to the upper end of the volume cavity 2.
[0025] In this embodiment, the electric telescopic rod 15 can electrically control the lifting and lowering of the fixed circular frame 14, so that when the fixed circular frame 14 is lifted and lowered, it can drive the connecting rods 13 at the four corners to be lifted and lowered electrically, thereby making cleaning more convenient.
[0026] 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 heat balance manifold for an injection mold, comprising a flow guide cavity (1), characterized in that: The two ends of the flow guide cavity (1) are connected to the volume cavity (2). The two sides of the lower end of the volume cavity (2) are connected to the flow distribution pipe (3). The upper end of the flow guide cavity (1) is provided with the injection nozzle (4). The lower end of the flow guide cavity (1) is inlaid with the heating guide plate (5). The inner wall of the heating guide plate (5) is provided with the flow distribution slope (6). The heating resistance wire (7) is fixedly connected inside the heating guide plate (5). The side of the heating guide plate (5) is fixedly connected with the storage battery (8). The heating resistance wire (7) is electrically connected to the storage battery (8) through the wire.
2. The heat balance manifold of the injection mold according to claim 1, characterized in that: The volume cavity (2) is fixedly connected to two sides of the diversion cavity (9). The two sides of the interior of the volume cavity (2) are provided with arc rounded corners (10). The two diversion cavities (9) are connected by a connecting conduit (16).
3. The heat balance manifold of the injection mold according to claim 1, characterized in that: The upper end of the volume cavity (2) is connected to a guide tube (11), and a cleaning piston block (12) is slidably sleeved inside the guide tube (11). A connecting rod (13) is fixedly connected to the upper end of the cleaning piston block (12).
4. The heat balance manifold of the injection mold according to claim 3, characterized in that: The upper end of the connecting rod (13) is fixedly connected to a fixed circular frame (14), and the lower center of the fixed circular frame (14) is fixedly connected to an electric telescopic rod (15), which is fixedly connected to the upper end of the volume cavity (2).