High-strength semi-curved top metal card clothing

By adopting a semi-circular tooth tip and reinforcing rib design, combined with wear-resistant, corrosion-resistant, and friction-reducing coatings, the stress concentration problem of metal needle cloth under high load or complex environments is solved, improving its service life and strength, and enhancing its wear resistance and corrosion resistance.

CN224513709UActive Publication Date: 2026-07-17QINGDAO HONGQIAO KNITTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HONGQIAO KNITTING CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing metal needle cloths mostly adopt flat tooth or simple curved tooth tip design, which easily leads to stress concentration when subjected to high loads or complex environments, affecting service life and strength.

Method used

By adopting a semi-circular tooth tip design and reinforcing rib structure, combined with wear-resistant, corrosion-resistant and friction-reducing coatings, the shape and material combination of the tooth needle are optimized to improve the fatigue resistance and service life of the tooth needle.

Benefits of technology

It effectively reduces stress concentration, improves the service life and strength of metal needle cloth, and enhances wear resistance, corrosion resistance and smoothness through coating, achieving synergistic effect of wear resistance, corrosion resistance and friction reduction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of high-strength half-arc tooth top metal card clothing, including substrate layer and tooth needle, the number of tooth needle is several, substrate layer side is provided with connecting base layer, connecting base layer side is provided with bottom base layer, several tooth needles are set in bottom base layer side, several tooth needles are equidistant linear array shape setting, tooth needle is half-arc tooth top, the even rear side of several tooth needles is provided with tooth back, tooth back is provided with reinforcing rib, recessed arc is set between the adjacent port of several tooth needles.This utility model makes the metal card clothing when bearing high load or complex environment, can effectively reduce stress concentration, improve the fatigue resistance of tooth surface, thereby improve the service life and strength of metal card clothing, secondly by the first coating, second coating and third coating set, so that the wear resistance, corrosion resistance and smoothness of tooth needle can be improved.
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Claims

1. A high-strength semi-curved top metal clothing characterized in that, The device includes a substrate layer (1) and toothed pins (3). There are several toothed pins (3). A connecting base layer (5) is provided on one side of the substrate layer (1). A base layer (2) is provided on one side of the connecting base layer (5). Several toothed pins (3) are provided on one side of the base layer (2). Several toothed pins (3) are arranged in an equidistant linear array. The toothed pins (3) have semi-arc tooth tops. A tooth back surface (9) is provided on the rear side of each toothed pin (3). A reinforcing rib (10) is provided on the tooth back surface (9). A concave arc (7) is provided between adjacent ports of several toothed pins (3).

2. A high-strength semi-curved tooth top metal card clothing according to claim 1, characterized in that, The tooth tip angle of the tooth needle (3) is 18°-25°, the working side angle of the tooth needle (3) is 65°-70°, and the non-working side angle of the tooth needle (3) is 75°-80°.

3. A high-strength semi-curved tooth tip metal clothing according to claim 2, characterized in that, The semi-arc tooth tip of the toothed needle (3) is set as a composite arc tip, which includes a main arc and a connecting secondary arc. The radius of the main arc is 0.10 mm, and the radius of the connecting secondary arc is 0.25 mm.

4. The high-strength semi-curved tooth tip metal card clothing according to claim 3, characterized in that, Each of the toothed needles (3) has a microgroove (8) on one side, the microgroove (8) having a width of 20 μm and a depth of 15 μm.

5. The high-strength semi-curved tooth tip metal card clothing according to claim 1, characterized in that, The two ends of the reinforcing rib (10) are arc-shaped. The reinforcing rib (10) is located in the middle of the back side (9) of the tooth. The substrate layer (1) is provided with an anti-corrosion coating (4) on the lower side.

6. The high-strength semi-curved tooth tip metal card clothing according to claim 1, characterized in that, The toothed needle (3) is provided with a first coating (12) around its periphery, a second coating (13) around its periphery, and a third coating (14) around its periphery.