CN2419972Y - Welder mask need not taking-off - Google Patents
Welder mask need not taking-off Download PDFInfo
- Publication number
- CN2419972Y CN2419972Y CN 00203623 CN00203623U CN2419972Y CN 2419972 Y CN2419972 Y CN 2419972Y CN 00203623 CN00203623 CN 00203623 CN 00203623 U CN00203623 U CN 00203623U CN 2419972 Y CN2419972 Y CN 2419972Y
- Authority
- CN
- China
- Prior art keywords
- resistance
- control circuit
- audion
- liquid crystal
- taking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Liquid Crystal (AREA)
- Arc Welding Control (AREA)
Abstract
The utility model discloses a welder mask need not taking-off when used. The utility model is composed of a facing plate, goggles, a mutual inductor and a controlling circuit, and a liquid crystal plate which is connected with the output end of the controlling circuit is the goggles of the mask. An induction signal generated by the mutual inductor is delivered to the controlling circuit, and the light transmission and filtering of the liquid crystal plate is controlled by the output of the controlling circuit. The welder mask need not taking-off has the advantages of easy use and safety.
Description
This utility model relates to the face shield that a kind of welder uses.
All in the market face shields have two kinds of hand-held and helmet-types.Its eyepiece is coloured opaque cobalt glass, need extract when not welding and to see workpiece clearly, frequent excision like this is inconvenience but also influence efficient and welding quality not only, especially discontinuous welding or need the welding of compounding practice with the hands such as the situation of inferior arc-welding under, operation is difficulty more.It is unfavorable to the safety of facial and eye often to take face shield in the operating process, has increased the probability that accident takes place.
The welders' mask of exempting to pluck when the purpose of this utility model provides a kind of the use.
The purpose of this utility model is achieved in that Welder mask need not taking-off is made up of protection slab and protective eye lens, and have transformer and a control circuit, the liquid crystal board that links to each other with the outfan of control circuit is as the protective eye lens of face shield, the welding gun lead passes from transformer, the induced signal that produces in transformer flows to control circuit, and control circuit produces control signal and exports liquid crystal board to.
The control circuit of Welder mask need not taking-off is by audion, resistance, electric capacity, photodiode, IGCT is formed, annexation is: transformer output connects the gate pole of IGCT through resistance, IGCT with form parallel circuit with electric capacity, photodiode again after resistance is connected, one termination power positive pole of this parallel circuit, the other end connects power cathode by resistance respectively and connects the base stage of audion by resistance, the colelctor electrode of audion and positive source are connected the two poles of the earth of liquid crystal board respectively, and the emitter stage of audion connects power cathode.
Good effect of the present utility model is: (1), easy to use: need not frequently extract during use, can reduce welder's labor intensity, simultaneously, the welder can be primarily focused in the welding, helps improving welding efficiency and welding quality.(2), safe and reliable: exempt from during use to pluck, face shield is being protected welder's eyes and face all the time, has significantly reduced the probability that accident takes place.
Below in conjunction with accompanying drawing and embodiment this utility model is further described.
Accompanying drawing 1 is a functional-block diagram of the present utility model.
Accompanying drawing 2 is electrical schematic diagrams of the present utility model.
As shown in Figure 1, in Welder mask need not taking-off, liquid crystal board 9 is as the protective eye lens of face shield, it has transformer 10 and control circuit 11 in addition, welding gun lead 12 passes transformer 10, the induced signal that produces at transformer 10 exports control circuit 11 to, and the control signal that control circuit 11 produces exports liquid crystal board 9 to, controls its logical light and optical filtering.The concrete connection of control circuit as shown in Figure 2, control circuit is by audion 1, resistance 2,3,4,5, electric capacity 6, photodiode 7, IGCT 8 is formed, annexation is: transformer output connects the gate pole of IGCT 8 through resistance 5, IGCT 8 with after resistance 4 is connected again with electric capacity 6, photodiode 7 is formed parallel circuit, one termination power positive pole of this parallel circuit, the other end connects power cathode and connects the base stage of audion 1 by resistance 2 by resistance 3 respectively, and the colelctor electrode of audion 1 and positive source are connected the two poles of the earth of liquid crystal board respectively, and the emitter stage of audion 1 connects power cathode.
When carrying out welding operation, current impulse in the welding gun lead 12 produces voltage and makes IGCT 8 conductings on the secondary coil of induction apparatus 10, electric capacity 6 is by resistance 4 discharges, and the voltage on the resistance 3 rises with electric capacity 6 discharges, and audion 1 is switched on by resistance 2, liquid crystal board 9 obtains voltage and begins the variable color optical filtering, at this moment, the high light that the electric arc that ignites produces makes photodiode 7 conductings, the feedback beginning, continue the high voltage on the maintenance resistance 3, continue whole process and finish until welding.
Claims (2)
1, a kind of Welder mask need not taking-off, it is made up of protection slab and protective eye lens, it is characterized in that: it also has transformer [10] and control circuit [11], the liquid crystal board [9] that links to each other with control circuit [11] outfan is the protective eye lens of face shield, the induced signal that transformer [10] produces flows to control circuit [11], and control circuit [11] produces control signal and exports liquid crystal board [9] to.
2, Welder mask need not taking-off according to claim 1, it is characterized in that: control circuit [11] is by audion [1], resistance [2], [3], [4], [5], electric capacity [6], photodiode [7], IGCT [8] is formed, annexation is: transformer output connects the gate pole of IGCT [8] through resistance [5], IGCT [8] with after resistance [4] is connected again with electric capacity [6], photodiode [7] is formed parallel circuit, one termination power positive pole of this parallel circuit, the other end connects power cathode by resistance [3] respectively and connects the base stage of audion [1] by resistance [2], the colelctor electrode of audion [1] and positive source are connected the two poles of the earth of liquid crystal board [9] respectively, and the emitter stage of audion [1] connects power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203623 CN2419972Y (en) | 2000-02-03 | 2000-02-03 | Welder mask need not taking-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203623 CN2419972Y (en) | 2000-02-03 | 2000-02-03 | Welder mask need not taking-off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2419972Y true CN2419972Y (en) | 2001-02-21 |
Family
ID=33572255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00203623 Expired - Fee Related CN2419972Y (en) | 2000-02-03 | 2000-02-03 | Welder mask need not taking-off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2419972Y (en) |
-
2000
- 2000-02-03 CN CN 00203623 patent/CN2419972Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |