Warp knitting machine damping spring steel washer and manufacturing method thereof

Abstract

The invention discloses a damping spring steel washer of a warp knitting machine and a manufacturing method thereof, and belongs to the field of mechanical engineering. The method requires that the spring steel washer comprises the following chemical components in percentage by mass: more than or equal to 0.65% of C, more than or equal to 0.3% of Si, more than or equal to 1.0% of Mn, less than or equal to 0.015% of P, less than or equal to 0.01% of S, more than or equal to 0.1% of Mo and the balance of Fe and inevitable impurities. The outer diameter D of the spring steel washer is not less than 150mm, and the wire diameter d is not less than 5mm. Putting the hot-rolled spring steel washer into a heating furnace, heating to be more than or equal to 860 DEG C, preserving heat according to the diameter standard of 3min / mm, carrying out heat treatment, taking out of the furnace, and quickly putting into oil for quenching; the tempering temperature is 400-550 DEG C, and the heat preservation time is 3-5 hours. The heat-treated spring steel has excellent mechanical properties. And the spring ring is welded with the 316 stainless steel lifting plate and the base through a laser welding machine. The method provided by the invention is mainly used for vibration reduction of the warp knitting machine, and has the outstanding advantages that the manufacturing cost is low, the vibration energy of the warp knitting machine can be greatly dissipated, noise pollution is avoided, and the operation efficiency of equipment is improved.

Description

Technical Field

[0001] The invention discloses a vibration-damping spring steel washer for a warp knitting machine and a manufacturing method thereof, and belongs to the field of mechanical engineering. Background Art

[0002] In the textile industry, warp knitting machines are widely used in textile weaving due to their high efficiency and stable performance. However, these machines generate vibration and noise during operation. Once in operation, warp knitting machines not only continuously generate noise but can also adversely affect the physical and mental health of operators. To address this issue, hydraulic vibration damping pads have emerged as an effective vibration reduction solution.

[0003] Vibration-damping spring steel washers are devices specifically designed to prevent vibration during the operation of warp knitting machines. These washers are typically composed of multiple layers of spring and rubber composite materials. By absorbing and isolating the vibration energy generated by the equipment during operation, they effectively reduce the impact of equipment vibration on the foundation structure and surrounding environment. However, the manufacturing process for such vibration-damping devices is relatively complex. For warp knitting machines, which are frequently used and experience frequent vibration, there is an urgent need to develop vibration-damping spring steel washers that can effectively reduce noise pollution and significantly improve the stability and service life of the equipment.

[0004] This invention discloses a spring steel washer for warp knitting machines and its manufacturing method. The washer is primarily used to adjust the vibration damping effect. Its distinguishing advantage is that it responds to vibrations at a lower natural frequency, significantly dissipating the machine's vibration energy and preventing noise from being transmitted to the foundation or the machine itself. This spring steel washer is low-cost to manufacture and not only reduces equipment vibration but also improves its operating efficiency. Summary of the Invention

[0005] The present invention provides a vibration-damping spring steel washer for a warp knitting machine and a manufacturing method thereof, comprising the following steps:

[0006] (1) Spring steel design: chemical composition and mass percentage shall comply with C ≥ 0.65%, Si ≥ 0.3%, Mn ≥ 1.0%, P ≤ 0.015%, S ≤ 0.01%, Mo ≥ 0.1%, and the balance shall be Fe and unavoidable impurities;

[0007] (2) Spring steel washer size design: According to the weight of the warp knitting machine, the outer diameter D of the spring steel washer should be ≥ 150 mm and the wire diameter d should be ≥ 5 mm;

[0008] (3) Place the hot-rolled spring steel washers with an outer diameter D ≥ 150 mm into a heating furnace, heat to ≥ 860 ° C, and keep them warm according to the standard of 3 min / mm diameter. After being taken out of the furnace, quickly place them in oil for quenching. The tempering temperature is 400-550 ° C and the holding time is 3-5 h.

[0009] (4) Performance test of heat-treated spring steel washers: tensile strength ≥ 1500 MPa, yield strength ≥ 1100 MPa, elongation ≥ 7%, elastic modulus ≥ 200 GPa;

[0010] (5) Lifting plate and base design: Made of 316 stainless steel, with a surface finish of ▽5 or less, ensuring that the upper and lower surfaces are always parallel and perpendicular to the axis of the spring steel washer, with a thickness of ≥2mm and an area of ​​155*155mm 2 ;

[0011] (6) Welding: The spring steel washer is welded to the lifting plate and the base plate using a laser welding process with a power of ≥900W, a welding speed of 0.5m / min, and an argon shielding gas flow of 15L / min. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a spring steel washer, where 1 is the gravity direction of the warp knitting machine, 2 is the lifting plate, 3 is the spring steel wire, and 4 is the base. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the examples.

[0014] Example 1

[0015] A vibration-damping spring steel washer for a warp knitting machine and a manufacturing method thereof, comprising the following steps:

[0016] (1) Spring steel design: Chemical composition and mass percentage are C 0.67%, Si 0.32%, Mn 1.1%, P 0.009%, S 0.005%, Mo 0.15%, and the balance is Fe and unavoidable impurities;

[0017] (2) Design of spring steel washer dimensions: Based on the weight of the warp knitting machine, the outer diameter D of the spring steel washer is determined to be 150 mm and the wire diameter d is 5 mm;

[0018] (3) Place the hot-rolled spring steel washer with an outer diameter of 150 mm in a heating furnace, heat it to 890 ° C, and keep it warm according to the standard of 3 min / mm diameter. After taking it out of the furnace, quickly put it in oil for quenching, the tempering temperature is 480 ° C, and the holding time is 4 h;

[0019] (4) Performance test of heat-treated spring steel washers: tensile strength 1580 MPa, yield strength 1160 MPa, elongation 7.5%, elastic modulus 210 GPa;

[0020] (5) Lifting plate and base design: Made of 316 stainless steel, with a surface finish of ▽4, ensuring that the upper and lower surfaces are always parallel and perpendicular to the axis of the spring steel washer, with a thickness of 2.1mm and an area of ​​155*155mm2 ;

[0021] (6) Welding: The spring steel washer is welded to the lifting plate and the base plate using a laser welding process with a power of 960 W, a welding speed of 0.5 m / min, and an argon shielding gas flow of 15 L / min.

[0022] Schematic diagram as Figure 1 shown.

[0023] Example 2

[0024] A vibration-damping spring steel washer for a warp knitting machine and a manufacturing method thereof, comprising the following steps:

[0025] (1) Spring steel design: Chemical composition and mass percentage are C 0.69%, Si 0.35%, Mn 1.0%, P 0.008%, S 0.002%, Mo 0.17%, and the balance is Fe and unavoidable impurities;

[0026] (2) Design of spring steel washer dimensions: Based on the weight of the warp knitting machine, the outer diameter D of the spring steel washer is determined to be 150 mm and the wire diameter d is 5 mm;

[0027] (3) Place the hot-rolled spring steel washer with an outer diameter of 150 mm in a heating furnace, heat it to 880 ° C, and keep it warm according to the standard of 3 min / mm diameter. After it is taken out of the furnace, it is quickly quenched in oil with a tempering temperature of 490 ° C and a holding time of 4 h.

[0028] (4) Performance test of heat-treated spring steel washers: tensile strength 1620 MPa, yield strength 1170 MPa, elongation 7.0%, elastic modulus 210 GPa;

[0029] (5) Lifting plate and base design: Made of 316 stainless steel, with a surface finish of ▽3, ensuring that the upper and lower surfaces are always parallel and perpendicular to the axis of the spring steel washer, with a thickness of 2.1mm and an area of ​​155*155mm 2 ;

[0030] (6) Welding: The spring steel washer is welded to the lifting plate and the base plate using a laser welding process with a power of 990 W, a welding speed of 0.5 m / min, and an argon shielding gas flow of 15 L / min.

[0031] Schematic diagram as Figure 1 shown.

Claims

1. A vibration-damping spring steel washer for a warp knitting machine and a method for manufacturing the same, characterized in that The chemical composition and mass percentage of spring steel shall comply with the requirements of C ≥ 0.65%, Si ≥ 0.3%, Mn ≥ 1.0%, P ≤ 0.015%, S ≤ 0.01%, Mo ≥ 0.1%, and the balance shall be Fe and unavoidable impurities.

2. A warp knitting machine vibration damping spring steel washer and a manufacturing method thereof according to claim 1, characterized in that The outer diameter of the spring steel washer D ≥ 150mm, and the wire diameter d ≥ 5mm.

3. The vibration damping spring steel washer for warp knitting machine and the manufacturing method thereof according to claim 1, characterized in that The heat treatment process is to place the hot-rolled spring steel washers with an outer diameter D ≥ 150mm into a heating furnace, heat them to ≥ 860℃, keep them warm according to the standard of 3min / mm diameter, and quickly quench them in oil after taking them out of the furnace. The tempering temperature is 400~550℃ and the holding time is 3~5h.

4. A warp knitting machine vibration damping spring steel washer and a manufacturing method thereof according to claim 1, characterized in that The lifting plate and base are made of 316 stainless steel, with a surface finish of ▽5 or less, a thickness of ≥2mm, and an area of ​​155*155mm 2 , ensure that the upper and lower surfaces are always parallel and perpendicular to the axis of the spring steel washer.

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