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Method for manufacturing stainless steel elevator sill

A production method, stainless steel technology, applied to elevators in buildings, transportation and packaging, etc., can solve the problems of door opening and closing obstacles, inability to mass produce, weak resistance, etc., achieve high straightness and parallelism, and facilitate The effect of mass production and low production cost

Active Publication Date: 2014-06-11
SUZHOU SHIJIA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cast iron sills have high strength, good wear resistance, and strong pressure bearing capacity, but they are easy to rust and unsightly, and are generally only used on freight elevators; while aluminum alloy sills are integrally formed by extruding molds, which cannot be mass-produced. Disadvantages such as high cost, easy wear, short life, weak resistance, etc., are prone to obvious scratches and bumps when hit or squeezed by hard objects, and require regular maintenance, which seriously hinders the opening and closing of the door

Method used

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  • Method for manufacturing stainless steel elevator sill
  • Method for manufacturing stainless steel elevator sill
  • Method for manufacturing stainless steel elevator sill

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Embodiment

[0033] A method for manufacturing a stainless steel elevator sill, comprising the following steps:

[0034](1) Cut the stainless steel plate with a thickness of 3mm into five strips according to the required size, including the first strip 1, the second strip 11, the third strip 15, and the fourth strip 18 , the fifth strip plate 24, the longitudinal one side of the second strip plate 11 is formed with the first projection 12, the longitudinal side of the fourth strip plate 18 is formed with the second projection 19, then on the first strip The first positioning hole 2, the second positioning hole 3, the welding hole 4, the chip removal hole 5, and the through hole 6 are opened on the plate 1, and the through hole 6 is uniformly formed along the longitudinal centerline on the first elongated plate 1 by laser. Set at intervals, put the pressure riveting screws 7 into the through holes 6, and press the heads of the pressure riveting screws 7 into the through holes 6 by using riv...

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Abstract

The invention relates to a method for manufacturing a stainless steel elevator sill. The method comprises the following steps of: (1) cutting a stainless steel plate with the thickness of 3mm into five strip-shaped plates according to required size, forming a lug on one longitudinal side of the second strip-shaped plate, forming a lug on one longitudinal side of the fourth strip-shaped plate, and forming a first positioning hole, a second positioning hole and a welding hole in the first strip-shaped plate; (2) respectively planing V-shaped grooves in the back surfaces of the five strip-shaped plates; (3) bending four strip-shaped plates which are subjected to groove planing in a bending machine; (4) fixing the four strip-shaped plates in the five strip-shaped plates on the other strip-shaped plate; and (5) welding, molding, and treating the welding line to obtain a finished elevator sill after the operation is ended. The stainless steel elevator sill is wholly made of stainless steel material, and is high in strength, wear-resistant, long in service life, high in straightness and parallelism, convenient to mount, convenient for mass production and stable and reliable in product quality, and is welded and molded by bending and inserting type positioning.

Description

technical field [0001] The invention relates to an elevator sill, in particular to a manufacturing method of a stainless steel elevator sill. Background technique [0002] The elevator sill is installed between the vertical elevator doors, and plays a guiding role in the operation of the elevator car doors and landing doors. The sill of the car door in the existing elevator installation is mostly made of cast iron or aluminum alloy materials. Cast iron sills have high strength, good wear resistance, and strong pressure bearing capacity, but they are easy to rust and unsightly, and are generally only used on freight elevators; while aluminum alloy sills are integrally formed by extruding molds, which cannot be mass-produced. High cost, easy to wear, short life, weak impact resistance and other disadvantages, it is easy to produce obvious scratches and bumps when hit or squeezed by hard objects, requires regular maintenance, and seriously hinders the opening and closing o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B66B13/00
Inventor 王娟李鹏
Owner SUZHOU SHIJIA SCI & TECH
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