一种便于脱模的铝合金件铸造模具

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By using an air-blowing demolding assembly and a detachable module design, the problem of uneven demolding force distribution in aluminum alloy casting molds was solved, enabling efficient and low-cost production of aluminum alloy parts and improving product quality and production efficiency.

CN224508439UActive Publication Date: 2026-07-17CHANGZHOU CHUANGLAI PRECISION MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: CHANGZHOU CHUANGLAI PRECISION MANUFACTURING CO LTD
Filing Date: 2025-08-06
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

The mold cavity of existing aluminum alloy casting molds has a fixed structure, making it difficult to replace local modules for different part sizes. This results in uneven distribution of demolding force, which can easily lead to scratches and deformation of the inner wall of aluminum alloy parts, affecting product quality and production efficiency.

Method used

The air-blowing demolding assembly uses air pressure to eject aluminum alloy parts from the cavity. The high-pressure air pump and electromagnet work together to achieve uniform air pressure distribution and avoid concentrated demolding force. Combined with the detachable module design, it can adapt to the production of aluminum alloy parts of different shapes and sizes.

Benefits of technology

It improves the surface quality and dimensional accuracy of aluminum alloy parts, reduces scrap rate, increases demolding efficiency, meets diversified production needs, and reduces mold costs.

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Abstract

本实用新型涉及铝合金件铸造模具技术领域，特别是一种便于脱模的铝合金件铸造模具，包括上模具和下模具，上模具底面开设有插槽，插槽内部插接有多个上模块，上模块底面固设有凸模，下模具顶面开设有放置槽，放置槽内部插接有多个下模块，下模块顶面开设有型腔，凸模与型腔插接配合，放置槽下端固设有镂空块，放置槽槽底安装有多个电磁铁，下模块下端安装有吹气脱模组件，吹气脱模组件包括连通管，连通管位于下模块内部下端。利用吹气脱模组件，通过气压将铝合金件从型腔中顶出，减少了因脱模力分布不均导致的铝合金件内壁拉伤、变形等问题，提高了铝合金件的表面质量和尺寸精度，提高了脱模效率，降低了废品率。

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Claims

1. An aluminum alloy part casting mold facilitating demolding, characterized by, include: The upper mold (100) and the lower mold (200) are provided with a slot (101) on the bottom surface of the upper mold (100), and multiple upper modules (102) are inserted into the slot (101). A punch (103) is fixed on the bottom surface of the upper module (102). The lower mold (200) has a placement groove (201) on its top surface. Multiple lower modules (202) are inserted into the placement groove (201). A cavity (203) is opened on the top surface of the lower module (202). The punch (103) is inserted into the cavity (203). A hollow block (204) is fixed at the lower end of the placement groove (201). Multiple electromagnets (205) are installed at the bottom of the placement groove (201). The lower module (202) is equipped with an air-blowing demolding assembly (400) at its lower end. The air-blowing demolding assembly (400) includes a connecting pipe (401). The connecting pipe (401) is located at the lower end inside the lower module (202). A metal vent block (402) is slidably connected to the inner wall of the connecting pipe (401). A plurality of insert rods (403) are fixed on the top surface of the metal vent block (402). A round block (404) is fixed on the upper end of the connecting pipe (401). A plurality of insertion holes (405) are opened on the top surface of the round block (404). The insert rods (403) are inserted into the insertion holes (405).

2. The cast aluminum alloy part ejection facilitating mold of claim 1, wherein: The slot (101) has multiple threaded holes (106) at the bottom, and the upper module (102) has fastening bolts (107) inserted into the bottom surface. The fastening bolts (107) are threadedly connected to the corresponding threaded holes (106).

3. The cast aluminum alloy part ejection facilitating mold of claim 2, wherein: A high-pressure air pump (300) is installed on the outer wall of the lower mold (200), and the output end of the high-pressure air pump (300) is connected to the placement groove (201).

4. The cast aluminum alloy part ejection facilitating mold of claim 3, wherein: Two positioning rods (206) are fixed on the top surface of the lower module (202), and two handles (207) are fixed on the top surface of the lower module (202).

5. The cast aluminum alloy part ejection facilitating mold of claim 4, wherein: The bottom surface of the upper module (102) has two positioning holes (104) and two grooves (105).

6. The cast aluminum alloy part ejection facilitating mold of claim 5, wherein: The positioning rod (206) is inserted into the positioning hole (104), and the handle (207) is inserted into the groove (105).

7. The cast aluminum alloy part ejection facilitating mold of claim 6, wherein: The outer peripheral wall of the metal breathable block (402) has two limiting grooves (406), and the inner wall of the connecting pipe (401) has two limiting blocks (407). The metal breathable block (402) is slidably connected to the limiting blocks (407) through the limiting grooves (406).

8. The cast aluminum alloy part ejection facilitating mold of claim 7, wherein: A fixing block (408) is fixed at the lower end of the inner wall of the connecting pipe (401), and a spring (409) is provided between the fixing block (408) and the metal vent block (402).

9. The cast aluminum alloy part ejection facilitating mold of claim 8, wherein: The bottom surface of the spring (409) is fixedly connected to the top surface of the fixing block (408), and the upper end of the spring (409) is fixedly connected to the bottom surface of the metal breathable block (402).