A lower mold assembly of an SMC molded article forming mold

By designing a hydraulic drive and threaded snap-fit ​​structure in the SMC molding die, the push plate can be easily replaced, solving the problem of adapting the lower die assembly to different push plates, and improving production efficiency and lubrication effect.

CN224510482UActive Publication Date: 2026-07-17HENAN YUANXIN NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YUANXIN NEW MATERIALS CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The lower mold assembly of existing SMC molding dies is difficult to adapt to the replacement requirements of different push plate models.

Method used

A lower mold assembly was designed, comprising a base plate, a hydraulic cylinder, a hydraulic rod, a top plate, a push plate, and a disassembly structure. The push plate is driven to rise and fall by a hydraulic system, and the push plate can be easily replaced through threaded connections and snap-fit ​​structures. At the same time, a lubrication structure is adopted to improve the lubrication effect of the hydraulic rod.

Benefits of technology

This enables convenient replacement of the push plate and smooth movement of the hydraulic rod, improving the adaptability and production efficiency of the mold.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lower mould subassembly of SMC moulded product forming die, including bottom plate, the top of bottom plate is installed hydraulic cylinder, and the top of top plate installs fixed plate including dismounting structure, and the inboard of fixed plate is penetrated to have screw rod, and one side of screw rod is installed locating piece. The utility model discloses a fixed plate is installed on the top of top plate, and fixed plate and screw rod constitute screw connection, and screw rod rotation will drive screw rod to remove, and screw rod removal will drive locating piece to remove, and locating piece removal can be clamped into the inside of mounting block and the clamping block of top plate bottom, and locating piece and locating piece can fix top plate, need to replace top plate, can twist screw rod, make locating piece no longer jam top plate, can replace top plate, to this to reach the purpose that lower mould subassembly of SMC moulded product forming die is convenient to replace push -on plate.
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Claims

1. A lower mold assembly for an SMC molding die, comprising a base plate (6); Its features are: A hydraulic cylinder (7) is installed at the top of the base plate (6), a hydraulic rod (4) is installed at the top of the hydraulic cylinder (7), and an mounting plate (2) is installed at the top of the hydraulic rod (4). The top plate (1) is installed on the top of the mounting plate (2), the top plate (1) is installed on the top of the mounting block (11), and the top of the mounting block (11) is installed on the push plate (10). The mounting block (11) is equipped with disassembly and assembly structures (9) on both sides and both ends. The disassembly and assembly structure (9) includes a fixing plate (901) installed at the top of the top plate (1), and a threaded rod (902) passing through the inner side of the fixing plate (901). A rotating block (903) is installed on one side of the threaded rod (902), and a positioning block (904) is installed on one side of the threaded rod (902).

2. A lower mold assembly for an SMC compression molded article forming mold according to claim 1, characterized by: The mounting plate (2) is equipped with mounting screws (3) at its bottom end, and the mounting screws (3) are arranged at equal intervals at the bottom end of the mounting plate (2).

3. A lower mold assembly for an SMC compression molded article forming mold according to claim 1, characterized by: A lubrication structure (5) is installed on the outside of the hydraulic rod (4). The lubrication structure (5) includes a pressure block (503) installed on the outside of the hydraulic rod (4). The lubrication structure (5) includes an outer box (501) of the hydraulic rod (4), and a through hole (502) is provided on one side of the box (501).

4. A lower mold assembly for an SMC compression molded article forming mold according to claim 1, characterized by: Guide structures (8) are installed on both sides of the top of the base plate (6). The guide structure (8) includes a second guide rod (802) installed on the top of the base plate (6), a rubber block (803) installed on the top of the second guide rod (802), a first guide rod (801) installed on the top of the rubber block (803), and a connecting plate (804) installed on the top of the first guide rod (801).

5. A lower mold assembly for an SMC compression molded article forming mold according to claim 4, characterized in that: The second guide rod (802) has a sliding groove inside, and the bottom end of the first guide rod (801) has a slider. The second guide rod (802) and the first guide rod (801) form a sliding structure.

6. A lower mold assembly for an SMC compression molded article forming mold according to claim 1, characterized by: The threaded rod (902) has external threads uniformly arranged on its outer side wall, and the fixing plate (901) has internal threads uniformly arranged on its inner side wall that cooperate with the external threads. The threaded rod (902) and the fixing plate (901) are connected by threads.

7. The lower mold assembly of an SMC molding die according to claim 1, characterized in that: The positioning block (904) is equipped with a buckle (905) on one side, and the buckle (905) is symmetrically distributed about the central axis of the top plate (1).