4 results about "Piano wire" patented technology

An ankle-foot orthosis having a foot plate defining a foot bed contoured to underlie the foot of the wearer, a flexible cuff configured to wrap around at least a portion of the shank of the wearer, and a strut assembly comprising a plurality of metal wires connecting the foot plate to the cuff. The plurality of metal wires may include piano wires. The foot plate may be fabricated with a computer aided manufacturing process.

The invention relates to the technical field of piano wire fusing equipment, and discloses a piano wire fusing device which comprises a take-up and pay-off assembly, a guide assembly, a wire pulling assembly and a positioning heating assembly, the guide assembly is located on one side of the take-up and pay-off assembly and used for guiding a piano wire, and the wire pulling assembly is parallel to the wire connecting direction of the take-up and pay-off assembly and the guide assembly; the guide assembly is used for clamping and pulling the piano wire, and the positioning and heating assembly is located on the side, away from the take-up and pay-off assembly, of the guide assembly and used for positioning and heating the piano wire; the piano wire is automatically fed and recycled through the take-up and pay-off assembly, the guide assembly accurately guides a conveying path, the wire pulling assembly clamps and pulls the piano wire to the positioning and heating assembly, and after the positioning and heating assembly completes accurate positioning and heating, the wire pulling assembly and the take-up and pay-off assembly cooperatively and reversely pull to achieve fusing. According to the structure, re-threading by manpower or external equipment is not needed, the problem that the production efficiency is low due to the fact that manual threading is needed after a traditional device is fused is solved, and the single-time fusing period is greatly shortened.

This invention discloses an optimization method for the production process of piano wire, comprising the following steps: selecting three groups of high-carbon steel wire rod raw materials, designated as control group steel wire raw material A, control group steel wire raw material B, and control group steel wire raw material C; treating control group steel wire raw material A with a salt bath process; treating control group steel wire raw material B with a salt bath process; treating control group steel wire raw material C with a salt bath process; preparing piano wire from high-carbon steel wire rod A, high-carbon steel wire rod B, and high-carbon steel wire rod C respectively, obtaining piano wire A, piano wire B, and piano wire C; testing piano wire A, piano wire B, and piano wire C to obtain performance data A, performance data B, and performance data C; comparing performance data A, performance data B, and performance data C to obtain performance references for piano wires prepared from raw materials quenched in medium-temperature salt bath, high-temperature salt bath, and low-temperature salt bath; recording and archiving the data for later retrieval.

The application discloses a kind of methods and auxiliary devices for constructing rolling hidden center line, as method includes the following steps: 1) using laser tracker to measure rolling mill, find the rolling center line of rolling mill;2) determine the vertical line perpendicular to the rolling center line;3) in the entry side, exit side of rack, auxiliary device is respectively arranged;4) the base of fixed auxiliary device;5) make the line groove on center target coincide with the rolling center line;6) record each auxiliary device in its pointer is located at the scale of scale;7) with piano wire sequentially through each auxiliary device center target line groove and tighten piano wire, thereby to the rack is centered and calibrated.The application establishes stable rolling hidden center line, so that when the rolling mill is centered and calibrated, it is not necessary to measure the rolling center line again by laser instrument, so that the determination of rolling center line is more convenient, saves human resources, improves work efficiency, and guarantees safety production.