CN87202921U - Automatic controlling attachment of welder vapour remover - Google Patents
Automatic controlling attachment of welder vapour remover Download PDFInfo
- Publication number
- CN87202921U CN87202921U CN 87202921 CN87202921U CN87202921U CN 87202921 U CN87202921 U CN 87202921U CN 87202921 CN87202921 CN 87202921 CN 87202921 U CN87202921 U CN 87202921U CN 87202921 U CN87202921 U CN 87202921U
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- CN
- China
- Prior art keywords
- welder
- time
- vapour remover
- remover
- vapour
- 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.)
- Ceased
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- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The utility model discloses an automatic controlling device used for a welder vapour remover. A sensor, a time-delay switch control circuit and a power circuit are assembled in two according to the principle of the electrodynamic induction, and the open and close of the welder vapour remover can be controlled by the time-delay switch control circuit. When the user begins welding, the welder vapour remover can be opened automatically only by needing that a welding rod is dotted on a work-piece; when the user stops welding, the welder vapour remover can be stopped automatically in the modulated time. The utility model has the advantages of simple device, low cost and convenient operation, is beneficial for reducing the abrasion and the noise of the welder vapour remover, and is beneficial for saving energy.
Description
The utility model relates to a kind of device that can control the keying of weldering fume and dust device automatically.
In order to make the effectively running in weld job of weldering fume and dust device, save electric energy, reduce noise and help increasing work efficiency, the 7th designing institute of Ministry of Astronautics Industry once designed " photoelectricity automatic control and time-delay arresting gear ".Though this device has solved the keying problem of the fume and dust of control weldering manually device, has realized above-mentioned purpose, has weak points such as complex structure, cost height and incompatibility far distance controlled.
The purpose of this utility model is in order to overcome above-mentioned deficiency, provide a kind of simple in structure, cost is low, be not subjected to distance limit, and is easy to use, the automaton of effective weldering fume and dust device.
Technical solution of the present utility model is according to electromagnetic induction principle, sensor, time-delay switch control circuit and power circuit is fitted together, and control the keying of weldering fume and dust device by time-delay switch control circuit.Sensor can be made of ferrite or strontium body or barium body magnetic core and the coil that is wrapped on the magnetic core.Its magnetic core can be annular or clavate or other shape.Time-delay switch control circuit can be made of diode, potentiometer, triode, relay, capacitor and resistor.Its operation principle as shown in Figure 2.
As Fig. 2, earth connection A in the electric welding machine secondary line is placed sensor B place, when welding, earth connection A has electric current to pass through, 2 of C, D just have alternating voltage output, through diode D1 rectification, behind D2, the D3 limit spoke, make the base stage of triode BG1 obtain positive bias and conducting, this moment, capacitor C 1 both end voltage was almost nil.The supply voltage anode is added on the base stage of triode BG2 by triode BG1, resistance R 1, BG2, BG3 conducting are satisfied closes, relay J energising adhesive weldering fume and dust appliance mains switch, deduster is started working when stopping to weld, do not have alternating current in the coil of sensor B, triode BG1 loses positive bias and ends.At this moment the supply voltage anode is by capacitor C 1, and resistance R 1, triode BG2, BG3, relay J are to power supply negative terminal, and electric capacity is recharged, and the base potential of triode BG2 descends gradually.After a period of time, make triode BG2 lose positive bias, triode BG2, BG3 end, and the relay J dead electricity quits work weldering fume and dust device.That is to say that weldering fume and dust device can not quit work at once when welding stopped, and needed to postpone a period of time.The length of time-delay is by decisions such as resistance R 1, capacitor C 1 time constants.
The power circuit part adds simple filter circuit by bridge full-wave rectifier and forms.It can be made of power switch, transformer, voltage-stabiliser tube, resistance, electric capacity and the bridge rectifier that is constituted by a diode.
Circuit board, relay, transformer can be fixed on the support of being made by iron plate or aluminium sheet or plastic plate, and by screw support are fixed in the housing of weldering fume and dust device.Sensor is connected with 2 of input C, the D of delay switch circuit by jack or binding post.
The utility model owing to adopted electromagnetic induction principle, has made designs simplification compared with the prior art, has reduced cost, and the restriction of uncontrolled distance.And have easy to use, reliable operation, easily advantages such as processing and manufacturing and installation and maintenance.
Be described in detail a specific embodiment of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is that structure of the present utility model is connected the situation schematic diagram with weldering fume and dust device.
Fig. 2 is circuit theory diagrams of the present utility model.
Fig. 1 is made up of sensor 1, time-delay switch control circuit 2, rectification power circuit 3 and weldering fume and dust device 4.
Fig. 2 is divided into three parts: I is a Sensor section, and II is the time-delay switch control circuit part, and III is the rectifier power source part.
Sensor B is to be 30 millimeters by external diameter, and internal diameter is 15 millimeters, and thick is 8 millimeters, magnetic capacity is 1000 ferrite bead, on the pad behind the two-layer fish paper, is 0.21 millimeter high strength enamelled wire around last 100 circle diameters, the outside is twined two-layer calico again, last paint-dipping drying.The two ends lead-out wire of coil is wanted firmly to be connected with lead by binding post, and lead is connected with 2 of input C, the D of delay switch by plug again.Diode D1 to D8 adopts 2CP14.Potentiometer W is small-sized 300K.Capacitor C1 is 10 microfarads, and withstand voltage 25 volts tantalum electrochemical capacitor, C2 are 1000 microfarads, withstand voltage 30 volts.Voltage-stabiliser tube DW is 2CW21K.Resistance R 1 is a metalfilmresistor, and 1/8th watts, 200KR2 is one watt, and 200 Ω D1 guarantee that BG1 obtains bias voltage, and W is the load of D1, and D2, D3 series connection can make the BG1 input signal be no more than 1.4 volts, can protect BG1 not burnt out.Triode BG1, BG2 are the 3DG type, and BG3 is 3DK4.Relay J is JJD23-33,24 volts of operating voltages, internal resistance 220 Europe.D3 shields to BG3.Power transformer is selected elementary 220 volts for use, and secondary 24 volts, power is 5 watts.
See figures.1.and.2, design printed circuit board (PCB), weld circuit.The appropriate location that components and parts such as circuit board, relay, power transformer are fixed in the weldering fume and dust device housing is in parallel with the power switch of weldering fume and dust device with the contact of relay control, close former power switch, just enter automatic control state.
When using operation, the earth connection in the electric welding machine secondary line (another root also can) is passed in the annular sensor.When beginning to weld, if with welding rod on the workpiece a bit, the just startup automatically of weldering fume and dust device.After stopping welding, weldering fume and dust device a period of time autostop then of can also working.
Requirement to adjustment:
1, when using BX1-135 type electric welding machine, minimum working current is 25 ampere-hours, and sensor B can make triode BG1 conducting; With BX1-330 type electric welding machine maximum operating currenbt is 450 ampere-hours, and triode BG1 can not be burnt out.After magnetic core is selected, mainly reach requirement by the increase and decrease cell winding number of turn and accent potentiometer W.
2, change the numerical value of capacitor C 1 or resistance R 1, satisfy delay requirement.The data of giving among the figure were delayed time about 40 seconds.
3, change R1 and R2, adjust total work electric current between 80 to 130 milliamperes for well.Because of R1 and R2 interact, need to adjust repeatedly the requirement that could satisfy operating current, time-delay length and reliability sometimes.
If 4 have motor brush spark interference phenomenon, can get rid of by methods such as shielding or change wirings, accomplish to open and close the motor flexibility and reliability.
Claims (3)
1, a kind of automaton of suitable weldering fume and dust device is characterized in that the sensor that it is made up of ferromagnetism magnetic core and coil, by diode [D
1], [D
2], [D
3], [D
4], potentiometer [W], triode [BG
1], [BG
2], [BG
3], relay [J], electric capacity [C
1] and resistance [R
1] time-delay switch control circuit formed and by power switch [K
1], transformer [BK], voltage-stabiliser tube [DW], resistance [R
2], electric capacity [C
2] and rectifier bridge [D
5-8] power circuit formed constitutes.
2, device according to claim 1 is characterized in that said ferromagnetism magnetic core is ferrite or strontium body or barium body.
3,, it is characterized in that said ferromagnetism magnetic core can be annular or clavate according to claim 1,2 described devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202921 CN87202921U (en) | 1987-02-25 | 1987-02-25 | Automatic controlling attachment of welder vapour remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202921 CN87202921U (en) | 1987-02-25 | 1987-02-25 | Automatic controlling attachment of welder vapour remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87202921U true CN87202921U (en) | 1988-02-03 |
Family
ID=4818978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87202921 Ceased CN87202921U (en) | 1987-02-25 | 1987-02-25 | Automatic controlling attachment of welder vapour remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87202921U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442838A (en) * | 2011-02-01 | 2013-12-11 | 伊利诺斯工具制品有限公司 | Fume extractor for welding applications |
| CN109895177A (en) * | 2019-03-06 | 2019-06-18 | 大连崇达电子有限公司 | A kind of dust collecting system and dust collection method of efficient removal PCB drilling machine dust |
-
1987
- 1987-02-25 CN CN 87202921 patent/CN87202921U/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442838A (en) * | 2011-02-01 | 2013-12-11 | 伊利诺斯工具制品有限公司 | Fume extractor for welding applications |
| CN103442838B (en) * | 2011-02-01 | 2017-04-26 | 伊利诺斯工具制品有限公司 | Fume extractor for welding applications |
| CN109895177A (en) * | 2019-03-06 | 2019-06-18 | 大连崇达电子有限公司 | A kind of dust collecting system and dust collection method of efficient removal PCB drilling machine dust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |