一种硬质合金管材产品成型模具
By introducing an ejection mechanism and a clamping mechanism into the cemented carbide tube forming mold, the adhesion force between the blank and the mold is reduced by utilizing the principle of thermal expansion and contraction. This solves the problems of manual removal and uneven pressure during mechanical ejection in traditional molds, and achieves stable forming and high-quality demolding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU GOLDEN WOLFRAN CARBIDE CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing cemented carbide tube forming molds require manual assistance to remove the formed workpiece after product forming, which is cumbersome to operate, and traditional mechanical ejection can easily lead to uneven pressure distribution and deformation.
The ejection mechanism utilizes a heating plate and cooling channel combined with an airbag for ejection. By leveraging the principle of thermal expansion and contraction, it reduces the adhesion between the blank and the mold. Combined with a clamping mechanism and a compaction mechanism, it ensures stable molding and demolding quality.
It enables easy and complete ejection of blanks, reduces mold wear, improves demolding quality, extends mold life, and avoids deformation.
Smart Images
Figure CN224508457U_ABST
Abstract
Claims
1. A hard metal pipe product forming die, characterised in that, The device includes a base plate (1) and a frame (2) fixedly connected to the base plate (1). A mold (3) is provided on the inner side of the frame (2). The mold (3) includes a base (301) fixedly installed on the frame (2). Two sets of slidable arc plates (302) are symmetrically arranged on the upper end of the base (301). A clamping mechanism (4) for driving the arc plates (302) to slide is fixedly installed on the frame (2). A column (303) is fixedly connected to the middle of the upper end of the base (301). A cooling channel (305) is opened inside the column (303). An ejection mechanism (6) for cooperating with the cooling channel (305) is provided on the base plate (1). An installation groove is opened on the base (301) on the outer side of the column (303). An ejection plate (304) is provided at the top of the installation groove. A compaction mechanism (5) for extrusion is fixedly installed at the top of the frame (2).
2. A cemented carbide tube product forming die according to claim 1, characterized in that: The ejection mechanism (6) includes an air pump (601) and a refrigerated air dryer (602) fixedly installed on the base plate (1). The inlet of the air pump (601) is connected to the outlet of the first air pipe (603) through the first air pipe (603). The outlet of the air pump (601) is fixedly installed with a second air pipe (604). One end of the second air pipe (604) passes through the base (301) and is connected to the inlet of the cooling channel (305). The outlet of the cooling channel (305) is fixedly installed with an air pipe three (607). The lower end of the air pipe three (607) passes through the base (301) and is fixedly installed with a solenoid valve (608). A branch pipe (609) is fixedly installed on the air pipe three (607). An air bag (606) is fixedly installed at one end of the branch pipe (609). The air bag (606) is fixedly installed in the mounting groove, and the upper end of the air bag (606) is fixedly connected to the top plate (304). Two sets of heating plates (605) are provided on the upper side of the airbag (606), and the two sets of heating plates (605) are respectively fixedly installed inside the two sets of arc plates (302).
3. A cemented carbide tube product forming die according to claim 1, characterized in that: The clamping mechanism (4) includes two sets of telescopic cylinders (401) fixedly installed on the left and right ends of the frame (2). The output shafts of the two sets of telescopic cylinders (401) are fixedly connected to two sets of arc plates (302) respectively. The upper and lower sides of the telescopic cylinders (401) are provided with guide rods (402) that are slidably connected to the frame (2). The guide rod (402) is fixedly connected to the arc plate (302) at one end, and a fixed frame (403) is fixedly connected to the other end of the guide rod (402), and a locking component is snapped into the fixed frame (403).
4. A cemented carbide tube product forming die according to claim 3, characterized in that: The locking component includes a locking plate (404) that is snapped into the fixed frame (403). A limiting plate (405) is fixedly connected to one end of the locking plate (404) near the frame (2). A fixing groove (201) for cooperating with the limiting plate (405) is provided on the frame (2). The front side of the card plate (404) is provided with a fixing plate (406) fixedly connected to the frame (2). A connecting plate (407) is slidably connected to the fixing plate (406). The rear end of the connecting plate (407) is fixedly connected to the card plate (404). A push-pull plate (409) is fixedly connected to the front end of the connecting plate (407). Several sets of springs (408) are fixedly connected between the card plate (404) and the fixing plate (406).
5. A cemented carbide tube product forming die according to claim 1, characterized in that: The compaction mechanism (5) includes two sets of hydraulic cylinders (501) fixedly installed at the top of the frame (2), and the output shafts of the two sets of hydraulic cylinders (501) are fixedly connected to pressure plates (502).