Protective face shield of ordinary AC welding machine

A technology of alternating current and electric welding machine, which is applied in eye masks and ophthalmic surgery, etc. It can solve the problems of arc stabbing and inability to see the position of the work object clearly, and achieve the effect of reducing labor intensity and improving work efficiency

Inactive Publication Date: 2010-11-10
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of ordinary masks often produces two adverse consequences due to the speed of the hand covering. The fo

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Protective face shield of ordinary AC welding machine
  • Protective face shield of ordinary AC welding machine
  • Protective face shield of ordinary AC welding machine

Examples

Experimental program
Comparison scheme
Effect test

Example

[0014] The first embodiment of the present invention:

[0015] See figure 1 At the moment when the welding torch is working, the induction probe induces a 4-50 volt AC signal from the welding output line stream. After rectification and voltage stabilization, it is directly applied to BG1 as a base bias voltage through R1 to make BG1 conductive. The breaker J works as an electromagnet that controls the up and down displacement of the welding glass (that is, the color change of the mask), thereby realizing the automation of the mask.

Example

[0016] The second embodiment of the present invention:

[0017] See figure 1 , 2 6. The present invention is composed of an electric welding machine 1 and a welding cap 2. The upper end of the electric welding machine 1 output H1 coil 3 is separately provided with an attached coil 4 with a voltage of 12V, and a magnetic switch 5 is provided on the outer wall of the electric welding machine 1 The switch is a square box with upper and lower metal sheets 6ab parallel to the bottom surface of the box. The contact bumps 7a on the inner surface of the front end of the ten metal sheets 6a are aligned with the contact bumps 7b on the inner surface of the lower metal sheet 6b. The sheet 6b is connected to the wire 8 at the other end of the outside of the box. The upper metal sheet 6a is provided with a square iron sheet 9 in the center of the inner surface. A spring 10 is provided between the inner surface of the upper metal sheet 6a and the bottom surface of the box. The positioning shee...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a protective face shield of an ordinary AC welding machine, which is characterized in that an induction probe induces AC signals from an output circuit of the welding machine and drives a relay thus controlling protecting glass of welding face shield. In addition, an auxiliary coil with the voltage of 12 V is singly arranged at the upper end of the output coil of the welding machine of the invention, a magnetic switch is arranged on the welding machine outer wall at the top surface, a circuit thereof is connected on a control coil on a welding cap, the control coil is arranged in a sealed type part of a square frame type observation window in front of the welding cap, gloss retention glass is movably arranged in an opening part, an iron sheet arranged at the upper end of a gloss retention glass handle is arranged in a direction guide groove aligned with a control coil core, the other end of the gloss retention glass handle is hinged in a position not far away from the lower end of the gloss retention glass, and the lower end of the gloss retention glass is connected with a transverse shaft of the lower end of the observation window through a hinge.

Description

technical field [0001] This mask is suitable for matching with general AC welding machines. Background technique [0002] When the electric welding machine is working, the strong arc generated by it will directly damage the eyes and face of the worker. Then you need to use a mask to protect as much as possible. However, the use of general masks often produces two adverse consequences due to the speed of hand covering. The former makes the worker unable to see the position of the work object clearly, and the latter will be stabbed by the electric arc. Contents of the invention [0003] Go up and realize above-mentioned object, this face shield is when not working (that is welding torch is not ignited), and face shield window is in transparent state, can see any working object clearly by it, at the instant (about 0.1 second) of electric welding ignition, face shield glass can Automatic color change, and at the same time, it can automatically delay within 2-6 seconds after ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61F9/06
Inventor 刘荣春
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap