A light-weighted and weight-reduced mold

By using a lightweight design and an efficient cooling system, the problem of high energy consumption and low molding efficiency caused by the excessive weight of traditional molds has been solved, achieving lightweight molds and efficient production.

CN224323497UActive Publication Date: 2026-06-05JIANGSU XINGCHUANGWEI INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XINGCHUANGWEI INTELLIGENT TECH CO LTD
Filing Date
2025-05-20
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Traditional molds are too heavy, resulting in high energy consumption and low efficiency in the mold closing and demolding processes.

Method used

The upper mold plate with a lightweight design and hollow structure, combined with a circulating cooling pipe and a telescopic motor ejector pin mechanism, reduces the weight of the mold and improves molding efficiency.

Benefits of technology

It effectively reduces mold weight, decreases the load on the hydraulic drive system, shortens the molding cycle, increases mold closing and opening speed, and ensures product dimensional stability and demolding accuracy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224323497U_ABST
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Abstract

The utility model relates to mould processing technical field, and disclose a kind of mould of lightweight weight reduction, the lightweight weight reduction of this mould includes base, lower die plate is as the installation platform of forming system and provides cavity positioning reference, slot is as the receiving structure of cavity plate to ensure that forming area is accurately positioned, cavity plate and core plate form closed cavity in cooperation to constrain molten material form, upper die plate is lightened by lightweight design and bears hydraulic drive element, and punching is formed with array distribution to reduce the quality of panel to hollow structure.Precise positioning is ensured by the receiving structure of cavity plate to the forming area, and the cavity plate and the core plate form closed cavity in cooperation to constrain molten material form, and the upper die plate is lightened by lightweight design and bears hydraulic drive element, and punching is formed with array distribution to reduce the quality of panel to hollow structure.The lightweight weight reduction of this mould, punch structure is used to realize the lightweight design of upper die plate, effectively reduce the overall weight of mould, reduce the load of hydraulic drive system, improve the response speed of clamping and opening action, and the rigidity of panel edge is enhanced by four corner reinforcing blocks, to ensure the balance optimization of lightweight and structural strength.
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Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, specifically a lightweight and weight-reducing mold. Background Technology

[0002] Mold processing, as one of the core processes of modern manufacturing, mainly uses precision machining technology to make metal or alloy materials into mold cavity structures of specific shapes. These are used in molding processes such as injection molding and die casting to mass-produce highly complex industrial parts. Its widespread application in the automotive, electronics, and home appliance industries has significantly improved product standardization and production efficiency.

[0003] Traditional mold structures generally use a solid steel stacking design to meet strength requirements, resulting in excessive overall mold weight. During high-speed mold closing and demolding, the hydraulic system needs to output higher power to overcome inertial resistance. This not only exacerbates the energy consumption burden of the equipment, but also prolongs the production cycle due to the heavy mold plate movement, further increasing the energy consumption per unit of production capacity. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a lightweight mold to solve the problem of excessive energy consumption caused by the weight of traditional molds mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lightweight and weight-reducing mold, comprising a base, a lower template fixedly disposed at the upper end of the base, a slot fixedly disposed inside the lower template, a cavity plate fixedly disposed inside the slot, an upper template movably disposed on the upper side of the lower template, a sprue sleeve fixedly disposed at the upper end of the upper template, a main runner fixedly disposed at the lower end of the sprue sleeve, and several punches disposed on the upper template. The base provides support and stability for the entire mold, the lower template serves as an installation platform for the molding system and provides a cavity positioning reference, the slot serves as a receiving structure for the cavity plate to ensure accurate positioning of the molding area, the cavity plate and the core plate work together to form a closed cavity to constrain the shape of the molten material, the upper template reduces the motion load and supports hydraulic drive components through a lightweight design, and the punches are distributed in an array to form a hollow structure to reduce the weight of the template.

[0008] Preferably, a connector is fixedly provided at the upper end of the upper template, and reinforcing blocks are fixedly provided at the four corners of the outer ring of the upper template. The connector serves as the force transmission medium between the hydraulic rod and the upper template, and the reinforcing blocks strengthen the rigidity of the four corners of the template to offset the impact force of mold closing.

[0009] Preferably, a guide rod is connected between the upper template and the lower template, and a limit end is fixedly provided at the upper end of the guide rod. The guide rod and the limit end cooperate to realize the vertical movement trajectory control of the upper and lower templates.

[0010] Preferably, a hydraulic rod is fixedly provided at the upper end of the connector, and a core plate is fixedly provided at the lower end of the upper template. The hydraulic rod provides the mold closing power and adjusts the mold locking pressure. The sprue sleeve guides the molten material into the main runner to complete the mold filling process.

[0011] Preferably, a water inlet pipe is fixedly installed at the right end of the lower template, and a water return pipe is fixedly installed at the front side of the water inlet pipe. The water inlet pipe and the water return pipe form a coolant circulation loop through a circulation pipe to accelerate heat dissipation.

[0012] Preferably, a circulation pipe is fixedly installed inside the lower template, and the two ends of the circulation pipe are connected to the inlet pipe and the return pipe, respectively. The heat exchange interface is evenly distributed in a meandering path.

[0013] Preferably, a telescopic motor is fixedly installed at the lower end of the cavity plate, and a push pin is movably installed in the output shaft direction of the telescopic motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This lightweight and weight-reducing mold adopts a punched structure to achieve a lightweight design for the upper template, effectively reducing the overall weight of the mold, reducing the load on the hydraulic drive system, and improving the response speed of mold closing and opening actions. At the same time, the rigidity of the template edge is enhanced by four corner reinforcement blocks to ensure a balanced optimization of lightweight and structural strength.

[0016] 2. This lightweight and weight-reducing mold integrates a circulating cooling pipeline system, which forms a closed loop with the water inlet pipe and the water return pipe. Combined with the cooling channels evenly distributed in the cavity, it can achieve multi-directional rapid cooling of high-temperature molten materials, greatly shorten the product molding cycle, reduce material shrinkage and deformation caused by local temperature differences, and ensure the dimensional stability of the product.

[0017] 3. This lightweight mold adopts an ejection mechanism with a telescopic motor linked to the ejector pin. After the mold is opened, the product is demolded by precise vertical ejection. Compared with the traditional spring ejection method, it has higher control accuracy and reliability, and avoids scratches or residues on the surface of the product during the ejection process. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the lightweight and weight-reducing mold of this utility model.

[0019] Figure 2 This is a schematic diagram of the upper template structure of this utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the mold structure for lightweight and weight-reducing purposes according to this utility model.

[0021] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle.

[0022] In the diagram: 1. Base; 2. Lower template; 3. Groove; 4. Upper template; 5. Punch; 6. Connector; 7. Reinforcing block; 8. Guide rod; 9. Limiting end; 10. Hydraulic rod; 11. Core plate; 12. Water inlet pipe; 13. Water return pipe; 14. Circulation pipe; 15. Cavity plate; 16. Telescopic motor; 17. Ejector pin; 18. Sprue sleeve; 19. Main runner. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-4 This utility model provides a technical solution: a lightweight and weight-reducing mold, which includes a base 1, a lower template 2 fixedly mounted on the upper end of the base 1, a slot 3 fixedly mounted inside the lower template 2, a cavity plate 15 fixedly mounted inside the slot 3, an upper template 4 movably mounted on the upper side of the lower template 2, a sprue sleeve 18 fixedly mounted on the upper end of the upper template 4, a main runner 19 fixedly mounted on the lower end of the sprue sleeve 18, and several punches 5 on the upper template 4. The base 1 provides overall support and stability for the mold, the lower template 2 serves as an installation platform for the molding system and maintains the cavity positioning reference, the slot 3 fixedly supports the cavity plate 15 to ensure the alignment accuracy of the molding area, the cavity plate 15 and the core plate 11 together construct a sealed cavity to constrain the molding outline of the molten material, the upper template 4 reduces its own weight and supports the hydraulic drive components through the punches 5, and the punches 5 are distributed in an array to form a hollow structure to reduce motion inertia.

[0025] A connector 6 is fixedly installed at the upper end of the upper template 4, and reinforcing blocks 7 are fixedly installed at the four corners of the outer ring of the upper template 4. A guide rod 8 is connected between the upper template 4 and the lower template 2. A limit end 9 is fixedly installed at the upper end of the guide rod 8. A hydraulic rod 10 is fixedly installed at the upper end of the connector 6, and a core plate 11 is fixedly installed at the lower end of the upper template 4. The connector 6 transmits the output power of the hydraulic rod 10 to the mold closing action. The reinforcing blocks 7 are distributed at the four corners of the upper template 4 to enhance the resistance to deformation. The guide rod 8 and the limit end 9 work together to control the vertical movement trajectory of the template. The hydraulic rod 10 provides the mold closing power and precisely controls the mold clamping pressure. The sprue sleeve 18 guides the molten material into the main sprue 19 to form the mold filling path.

[0026] A water inlet pipe 12 is fixedly installed at the right end of the lower mold plate 2, and a water return pipe 13 is fixedly installed at the front side of the water inlet pipe 12. A circulation pipe 14 is fixedly installed inside the lower mold plate 2. The two ends of the circulation pipe 14 are connected to the water inlet pipe 12 and the water return pipe 13, respectively. A telescopic motor 16 is fixedly installed at the lower end of the cavity plate 15. An ejector pin 17 is movably installed in the output shaft direction of the telescopic motor 16. The main gating system 19 evenly distributes material to each area of ​​the cavity. Coolant is introduced into the circulation pipe 14 through the water inlet pipe 12 to complete heat exchange. The water return pipe 13 discharges heated liquid to maintain cooling circulation. The circulation pipe 14 improves heat dissipation efficiency through a meandering layout. The telescopic motor 16 outputs axial driving force to drive the ejector pin 17 to perform demolding action. The ejector pin 17 separates the product from the cavity plate 15 by vertical pushing to avoid surface damage.

[0027] Working principle: The mold is supported by a base 1, with a lower template 2 fixed on top and a slot 3 inside to position the cavity plate 15. The upper template 4 is reinforced by four corner reinforcing blocks 7 to enhance structural stability and is precisely guided by the lower template 2 through guide rods 8 and limiting ends 9. After the upper template 4 is made lightweight by punching holes 5, the upper template 4 is driven to descend and close by the hydraulic rod 10 at the top of the connector 6. At this time, the molten material is injected into the cavity formed by the cavity plate 15 and the core plate 11 fixed at the bottom of the upper template 4 through the sprue sleeve 18 and the main runner 19. During the molding stage, coolant is injected into the circulation pipe 14 through the water inlet pipe 12 to accelerate the solidification of the material. Then the return water pipe 13 discharges the residual heat liquid to form a cooling cycle. After the molding is completed, the hydraulic rod 10 drives the upper template 4 to reset. Finally, the telescopic motor 16 at the bottom of the cavity plate 15 drives the ejector pin 17 to vertically eject the molded product.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A lightweight and weight-reducing mold, the lightweight and weight-reducing mold comprising a base (1), characterized in that: The base (1) is fixedly provided with a lower template (2) at its upper end. The lower template (2) is fixedly provided with a slot (3) inside. The slot (3) is fixedly provided with a cavity plate (15) inside. The lower template (2) is movably provided with an upper template (4) on its upper side. The upper end of the upper template (4) is fixedly provided with a sprue sleeve (18). The lower end of the sprue sleeve (18) is fixedly provided with a main runner (19). The upper template (4) is provided with several punch holes (5).

2. The lightweight and weight-reducing mold according to claim 1, characterized in that: A connector (6) is fixedly installed at the upper end of the upper template (4), and a reinforcing block (7) is fixedly installed at the four corners of the outer ring of the upper template (4).

3. The lightweight and weight-reducing mold according to claim 1, characterized in that: A guide rod (8) is connected between the upper template (4) and the lower template (2), and a limit end (9) is fixedly provided at the upper end of the guide rod (8).

4. The lightweight and weight-reducing mold according to claim 2, characterized in that: A hydraulic rod (10) is fixedly installed at the upper end of the connector (6), and a core plate (11) is fixedly installed at the lower end of the upper template (4).

5. The lightweight and weight-reducing mold according to claim 1, characterized in that: A water inlet pipe (12) is fixedly installed at the right end of the lower template (2), and a water return pipe (13) is fixedly installed at the front side of the water inlet pipe (12).

6. The lightweight and weight-reducing mold according to claim 1, characterized in that: The lower template (2) is fixedly equipped with a circulation pipe (14), and the two ends of the circulation pipe (14) are connected to the inlet pipe (12) and the return pipe (13) respectively.

7. The lightweight and weight-reducing mold according to claim 1, characterized in that: A telescopic motor (16) is fixedly installed at the lower end of the cavity plate (15), and a push pin (17) is movably installed in the output shaft direction of the telescopic motor (16).