Injection molding uniformity mold
By introducing a flow divider and temperature control mechanism into the mold, the problems of unevenness and coagulation in the molding of complex or large products by injection molds are solved, and uniform shaping and high-quality molding are achieved in the injection molding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JINXIA MOLDING TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-07-03
AI Technical Summary
Existing injection molds are prone to problems such as localized unevenness and material agglomeration when molding complex or large products, especially in multi-channel injection molding where excessively long runners lead to agglomeration and solidification issues.
The mold design combines a manifold box with a temperature control mechanism. The manifold box evenly injects the raw material into the mold cavity, and the temperature of the manifold box is maintained by the heat-insulating water pipe to prevent the raw material from solidifying locally before injection molding. Combined with the cooling water pipe, the molding quality is ensured.
This ensures that materials are used evenly and synchronously in all parts of the product, avoiding localized curing before injection molding and improving the quality of injection molding.
Smart Images

Figure CN224446704U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mold technology, specifically relating to a mold for uniform injection molding. Background Technology
[0002] Injection molds are tools used to produce plastic products, and they also give plastic products a complete structure and precise dimensions. Injection molding is a processing method used to mass-produce certain complex-shaped parts. Specifically, it refers to injecting heated and molten plastic into the mold cavity under high pressure by an injection molding machine, and then obtaining the molded product after cooling and solidification.
[0003] Existing injection molds typically use a single injection port to directly inject raw materials into the mold cavity for molding. When dealing with products with complex shapes or large sizes, unevenness in localized areas of the injection molding process can easily occur. Even with multi-channel injection molding, excessively long injection channels can lead to premature solidification of the raw materials. Summary of the Invention
[0004] This invention provides a mold for uniform injection molding to solve the above-mentioned technical problems.
[0005] The solution adopted by this utility model to achieve its technical effect is as follows:
[0006] A mold for uniform injection molding includes a lower mold, an upper mold, and a temperature control mechanism. A lower mold core is located at the top of the lower mold. An upper mold core is located at the bottom of the upper mold. After the upper mold and the lower mold are closed, the upper mold core and the lower mold core together form a mold cavity. An injection port is located at the top of the upper mold. A manifold box is located inside the upper mold. The manifold box is connected to the injection port and to the mold cavity. The temperature control mechanism includes an insulated water pipe and a cooling water pipe. The insulated water pipe is located inside the upper mold and around the manifold box. The cooling water pipe is located inside the lower mold core and the upper mold core and around the mold cavity.
[0007] Preferably, the lower mold includes a base frame and a lower module; the lower module is disposed on the top of the base frame; and the lower mold core is disposed on the top of the lower module.
[0008] Preferably, the upper mold includes a heat preservation module, a diversion module, and an upper module; the heat preservation water pipe is disposed within the heat preservation module; the diversion module is disposed at the bottom of the heat preservation module; the diversion box is disposed within the diversion module; the upper module is disposed at the bottom of the diversion module; and the upper mold core is disposed at the bottom of the upper module.
[0009] Preferably, the bottom of the distribution box is connected to an injection tube; the injection tube is disposed within the upper module, and the bottom of the injection tube is disposed within the upper mold core and communicates with the mold cavity.
[0010] Preferably, the temperature control mechanism further includes an insulated water tower; the insulated water tower is disposed within the insulation module and is disposed on top of the distribution box.
[0011] Preferably, the heat preservation module further includes an electric heating box and a heating water pipe; the electric heating box is disposed on one side of the heat preservation module; the heating water pipe is disposed inside the heat preservation module and is located between the heat preservation water pipes; one end of the heating water pipe is connected to the heating end of the electric heating box.
[0012] The beneficial effects of this utility model are as follows: It is equipped with a flow distribution box, which injects the raw material into the mold cavity through flow distribution injection, so that the material is used in various parts of the product more synchronously and evenly; at the same time, it is equipped with heat preservation water pipes around the flow distribution box, which maintains the temperature of the flow distribution box before the raw material is injected into the mold cavity, avoiding local solidification and solidification of the raw material before injection molding, and ensuring better quality of injection molded products. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall mold disclosed in an embodiment of the present utility model;
[0014] Figure 2 This is a schematic diagram of the heat preservation mechanism disclosed in an embodiment of the present utility model;
[0015] Figure 3 This is a schematic diagram of the lower mold core and injection tube disclosed in an embodiment of this utility model.
[0016] Labeling instructions: 1-Lower mold, 2-Upper mold, 3-Lower mold core, 4-Upper mold core, 5-Injection port, 6-Diverter box, 7-Insulated water pipe, 8-Cooling water pipe, 9-Injection pipe, 10-Insulated water tower, 11-Electric heating box, 12-Heating water pipe, 13-Temperature control box. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or may have an intervening element present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or may have an intervening element present. When an element is referred to as being "fixedly connected to" another element, it can be a common fixing connection method such as welding, bolting, or gluing.
[0018] Please refer to Figure 1-3 This utility model discloses a mold for uniform injection molding in a preferred embodiment, comprising a lower mold 1, an upper mold 2, and a temperature control mechanism; a lower mold core 3 is provided at the top of the lower mold 1; an upper mold core 4 is provided at the bottom of the upper mold 2; after the upper mold 2 and the lower mold 1 are closed, the upper mold core 4 and the lower mold core 3 enclose each other to form a mold cavity; an injection port 5 is provided at the top of the upper mold 2; a flow distribution box 6 is provided inside the upper mold 2; the flow distribution box 6 is connected to the injection port 5; the flow distribution box 6 is connected to the mold cavity; the temperature control mechanism includes a heat-insulating water pipe 7 and a cooling water pipe 8; the heat-insulating water pipe 7 is disposed inside the upper mold 2 and is located around the flow distribution box 6; the cooling water pipe 8 is disposed inside the lower mold core 3 and the upper mold core 4 and is located around the mold cavity.
[0019] Specifically, the lower mold 1 includes a base frame and a lower module; the lower module is disposed on the top of the base frame; and the lower mold core 3 is disposed on the top of the lower module.
[0020] Specifically, the upper mold includes a heat preservation module, a diversion module, and an upper module; the heat preservation water pipe 7 is disposed inside the heat preservation module; the diversion module is disposed at the bottom of the heat preservation module; the diversion box 6 is disposed inside the diversion module; the upper module is disposed at the bottom of the diversion module; and the upper mold core 4 is disposed at the bottom of the upper module.
[0021] Specifically, the bottom of the distribution box 6 is connected to an injection tube 9; the injection tube 9 is located inside the upper module, and the bottom of the injection tube 9 is located inside the upper mold core 4 and communicates with the mold cavity.
[0022] Specifically, the temperature control mechanism also includes an insulated water tower 10; the insulated water tower 10 is disposed inside the insulation module and is disposed on top of the distribution box 6.
[0023] Specifically, the heat preservation module further includes an electric heating box 11 and a heating water pipe 12; the electric heating box 11 is disposed on one side of the heat preservation module; the heating water pipe 12 is disposed inside the heat preservation module and is located between the heat preservation water pipes 7; one end of the heating water pipe 12 is connected to the heating end of the electric heating box 11.
[0024] Specifically, a temperature control box 13 is provided on one side of the insulation module; the temperature control box 13 is provided with a water inlet valve that communicates with the insulation water pipe 7. The temperature control box 13 can detect the water temperature entering the insulation water pipe 7.
[0025] As can be seen from the above description, the injection-molded products of this utility model have uniform material usage and good molding quality.
[0026] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. It should be noted that the protection scope of the present utility model includes, but is not limited to, the above embodiments; the specific structures disclosed in the accompanying drawings are only preferred embodiments of the present utility model. Those skilled in the art can develop other embodiments based on this. Any simple modifications or equivalent substitutions that do not depart from the innovative concept of the present utility model are all covered by the present utility model and fall within the protection scope of the present utility model.
Claims
1. A mold for injection molding a uniform shape, characterized by, include: Lower mold; a lower mold core is provided on the top of the lower mold; The upper mold has an upper mold core at its bottom. After the upper mold and the lower mold are closed, the upper mold core and the lower mold core together form a mold cavity. The top of the upper mold has an injection port. The interior of the upper mold has a flow divider box. The flow divider box is connected to the injection port. The flow divider box is connected to the mold cavity. Temperature control mechanism; the temperature control mechanism includes heat preservation water pipe and cooling water pipe; the heat preservation water pipe is disposed inside the upper mold and is located around the distribution box; the cooling water pipe is disposed inside the lower mold core and the upper mold core and is located around the mold cavity.
2. A mold for injection molding a uniform shape according to claim 1, characterized in that: The lower mold includes a base frame and a lower module; the lower module is disposed on the top of the base frame; the lower mold core is disposed on the top of the lower module.
3. A mold for injection molding a uniform shape according to claim 1, characterized in that: The upper mold includes an insulation module, a diversion module, and an upper module; the insulation water pipe is disposed within the insulation module; the diversion module is disposed at the bottom of the insulation module; the diversion box is disposed within the diversion module; the upper module is disposed at the bottom of the diversion module; and the upper mold core is disposed at the bottom of the upper module.
4. A mold for injection molding a uniform shape according to claim 3, characterized in that: The bottom of the distribution box is connected to an injection tube; the injection tube is located inside the upper module, and the bottom of the injection tube is located inside the upper mold core and communicates with the mold cavity.
5. The mold for uniform injection molding according to claim 4, characterized in that: The temperature control mechanism also includes an insulated water tower; the insulated water tower is installed inside the insulation module and is located on top of the distribution box.
6. A mold for injection molding a uniform shape according to claim 5, wherein: The insulation module also includes an electric heating box and a heating water pipe; the electric heating box is located on one side of the insulation module; the heating water pipe is located inside the insulation module and between the insulation water pipes; one end of the heating water pipe is connected to the heating end of the electric heating box.