圆环形不锈钢滤芯等静压模具
By designing an isostatic pressing mold for circular stainless steel filter elements, the problems of loose layers and uneven overlap in the traditional straight tube filter element rolling process are solved, achieving efficient forming, improving yield, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG JINTAI PURIFICATION EQUIP CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-17
AI Technical Summary
The traditional straight tube filter cartridge is complex to roll into annular aeration filter cartridges. It is prone to loose rolls and uneven overlap, which can lead to filter cartridge cracking and deformation, resulting in low yield and high production costs.
Using a circular stainless steel filter element isostatic pressing mold, the spiral outer sleeve and inner rubber sleeve fit together in a conformal manner, combined with sealing rubber plugs, eliminating the need for straight tube bending and directly forming a regular spiral structure. The filter element is formed using isostatic pressing technology.
This improved the yield rate of filter elements, reduced production costs, avoided problems such as uneven stress and cracking/deformation of the rolled layers, and enhanced the structural stability and molding quality of the filter elements.
Smart Images
Figure CN224508175U_ABST
Abstract
Claims
1. An isostatic die for toroidal stainless steel filter cartridges, characterized in that, include: The outer tube is spirally arranged, and a first port and a second port are respectively provided at both ends of the outer tube; An inner rubber sleeve is fitted into the outer tube in a conformal shape. A mold core is axially inserted into the inner rubber sleeve, and a filling chamber is formed between the inner rubber sleeve and the mold core. Two sealing plugs are detachably installed at both ends of the packing chamber to seal the first port and the second port after packing is completed.
2. The torus-shaped stainless steel filter cartridge isopressing mold according to claim 1, characterized in that, The sidewalls of the first port and the second port are respectively radially provided with first positioning pins, which pass through the outer sleeve and the inner rubber sleeve and are radially inserted into the mold core.
3. The torus-shaped stainless steel filter cartridge isopressing mold according to claim 2, characterized in that, A second positioning pin is provided through both the first port and the second port, and the second positioning pin is perpendicular to the first positioning pin.
4. The torus-shaped stainless steel filter cartridge isostatic pressing mold according to claim 3, characterized in that, The second positioning pin has limit blocks at both ends, and the two limit blocks are respectively pressed onto the outer side walls of the first port and the second port that are far apart from each other.
5. The torus-shaped stainless steel filter cartridge isopressing mold according to claim 3, characterized in that, The first port has a first end face, the second port has a second end face, the first end face and the second end face are located in the same plane, and the axis of the second positioning pin is located in the plane.
6. The torus-shaped stainless steel filter cartridge isopressing mold according to claim 1, wherein, The outer sleeve has multiple static pressure holes along its axial direction.
7. The torus-shaped stainless steel filter cartridge isostatic press mold according to claim 6, characterized in that, Multiple static pressure holes are symmetrically and coaxially opened on both sides of the outer sleeve.
8. The torus-shaped stainless steel filter cartridge isostatic press mold according to claim 1, wherein, The sealing plug includes an integrally formed end cap and an insertion sleeve. The diameter of the end cap is larger than the cross-sectional diameter of the packing chamber. The insertion sleeve is inserted into both ends of the packing chamber and is interference-fitted with the packing chamber.