CN108001060A - A kind of combined steel seal marking device - Google Patents
A kind of combined steel seal marking device Download PDFInfo
- Publication number
- CN108001060A CN108001060A CN201711496007.7A CN201711496007A CN108001060A CN 108001060 A CN108001060 A CN 108001060A CN 201711496007 A CN201711496007 A CN 201711496007A CN 108001060 A CN108001060 A CN 108001060A
- Authority
- CN
- China
- Prior art keywords
- steel seal
- character form
- output
- circuit
- returning spring
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 45
- 239000010959 steel Substances 0.000 title claims abstract description 45
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims abstract description 3
- 230000010355 oscillation Effects 0.000 claims description 6
- 230000003534 oscillatory effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 7
- 230000005672 electromagnetic field Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
- B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
- B41K3/36—Apparatus for stamping articles having integral means for supporting the articles to be stamped with means for deforming or punching the copy matter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
- B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
- B41K3/62—Details or accessories
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention provides a kind of combined steel seal marking device, includes gear, connecting rod, returning spring, electric driving device, steel seal connecting seat and sensing device；The electricity driving device includes stepper motor, and output shaft and the gear axis connection of stepper motor, 7 character form structures of the rectangular bending of connecting rod, the horizontal segment open end of 7 character form structures is connected with hand steel seal connecting seat；The vertical section of 7 character form structures is equipped with rack structure, the wheel and rack structure matching engagement；On the extended line of 7 character form structure vertical sections, one end of returning spring is connected returning spring with the vertical section lower end of 7 character form structures, and the other end of returning spring is fixedly connected with the mechanism that ground or external position are fixed；The steel seal connecting seat includes threaded hole, and the connection for steel stamp is installed；The output terminal of adjustable delay circuit and the control terminal of electric driving device are electrical connected.The beneficial effects of the present invention are：Cost is relatively low, and easy to adjust steel seal stamp position.
Description
Technical field
The present invention relates to intermetallic composite coating production field, and in particular to a kind of combined steel seal marking device.
Background technology
In process of metal working, it usually needs carry out steel impression mark to metal derby or aluminium foil；Production line is usually using existing
The manual steel seal marking machine having realizes steel seal mark using the hand handle for taking manual steel seal marking machine after manual-alignment manually, but
Its work efficiency is low, it is difficult to realizes automatic positioning, continuous mark operation, and manual steel seal marking machine is all changed to automatically
Then on the one hand there are cost problem, old steel seal head needs to give up steel seal marking machine, and on the other hand, market is bought full-automatic
Marking machine is supplied and transmitted there is also material for production and application, is adapted to the problems such as specification, sensing setting and matching, for meeting
Production need and cost-effective equipment be difficult to purchase, in addition the intelligence control system of automatic marking machine need longer time into
Administrative staff's training, the education degree of knowledge background and receiving to new employee also have different requirements, how will be existing
Manual marking machine is adapted as meeting production requirement, has the function of automatic material supply and continuous mark operation etc., it is necessary to carry out
Further investigation.
The content of the invention
For the deficiency in the presence of the prior art, the present invention provides a kind of cost is relatively low, there is continuous mark operation
The combined steel seal marking device of function.
To achieve the above object, present invention employs following technical solution：
A kind of combined steel seal marking device, includes gear, connecting rod, returning spring, electric driving device, steel seal connecting seat and sense
Answer device；The electricity driving device includes stepper motor, output shaft and the gear axis connection of stepper motor, and the connecting rod is at right angles rolled over
7 curved character form structures, the horizontal segment open end of 7 character form structures are connected with hand steel seal connecting seat；The vertical section of 7 character form structures is equipped with
Rack structure, the wheel and rack structure matching engagement；Extended line of the returning spring generally in 7 character form structure vertical sections
On, one end of returning spring is connected with the vertical section lower end of 7 character form structures, the other end and ground or the external position of returning spring
Fixed mechanism is fixedly connected；The steel seal connecting seat includes threaded hole, and the connection for steel stamp is installed；The sensing device
Include Clapp oscillator, full-bridge rectification filter circuit, hysteresis loop comparator, adjustable delay circuit；Wherein Clapp oscillator knot
The oscillation inductance that self-excited oscillatory frequency is influenced in structure is formed by enameled wire loop coiling, and the enameled wire loop of coiling is used to sense metal
The position of workpiece；The output of Clapp oscillator is connected with the input of full-bridge rectification filter circuit, full-bridge rectification filter circuit
Output is connected with the input of hysteresis loop comparator, and the output of hysteresis loop comparator is connected with the input of adjustable delay circuit, adjustable delay
The output terminal of circuit and the control terminal of electric driving device are electrical connected.
The present invention is in use, steel stamp is installed on steel seal connecting seat；During work, under normal circumstances, in sensing device
Clapp oscillator self-oscillation produce sine wave so that oscillation inductance and produces alternation there is also the AC signal of high frequency
Electromagnetic field, when metal works by transmission device close to sensing device when, as caused by the coiling of oscillation inductance friendship
Electromagnetic Field is vortexed because electromagnetic induction produces on metal works and electromagnetic field of eddy current, electromagnetic field of eddy current are mutual with alternating electromagnetic field
Effect, changes the equivalent parameters of oscillation inductance, so as to have impact on the self-oscillatory frequency of Clapp oscillator and oscillating voltage
Amplitude, or even self-oscillation is off, the signal that full-bridge rectification filter circuit exports Clapp oscillator passes through rectifying and wave-filtering
Become direct current signal, the voltage and the self-oscillatory frequency of Clapp oscillator of direct current signal and voltage magnitude positive correlation afterwards,
It is far and near related from enameled wire loop to metal works, direct current signal through hysteresis loop comparator relatively after correspond to outputs level signals, lead to
Transmission device is triggered after crossing adjustable delay circuit；For definite transfer rate, the delay time of adjustable delay circuit is adjusted i.e.
The steel seal stamp region that can be achieved on metal works is adjusted.
Compared with the prior art, the present invention has the advantages that：
1., it is easy to adjust, the delay for adjusting adjustable delay circuit may be implemented in steel seal stamp region on metal works
Adjust, it is not necessary to set replacement and pinpoint sensor that demand is set by program；
2., marking device possess inducing function, can realize continuous mark operation with reference to transmission device；And need not after installing
Being corrected property of multiple parameters is set, only adjusts the delay parameter of adjustable delay circuit；
3., to replace different stamping die be that different steel seal stamps can be achieved, very convenient；
4., easy to safeguard, not comprising programming Control equipment, avoid control unit from being difficult to obtain replacement portion in time after damaging
Part；
5., favorable expandability, it is of low cost, easy to promote.
Brief description of the drawings
Fig. 1 is the structure principle chart in embodiment.
Fig. 2 is the schematic block circuit diagram of sensing device in embodiment.
Fig. 3 is the circuit diagram of Clapp oscillator in embodiment.
Fig. 4 is the schematic block circuit diagram of adjustable delay circuit in embodiment.
Embodiment
The technical solution in the present invention is further illustrated with reference to the accompanying drawings and embodiments.
A kind of combined steel seal marking device, as shown in Figure 1, containing gear 1, connecting rod 2, returning spring 3, steel seal connecting seat 4
With sensing device；The electricity driving device includes stepper motor, output shaft and 1 axis connection of gear of stepper motor, and the connecting rod 2 is in
7 character form structures of right-angle bending, the horizontal segment open end of 7 character form structures are connected with steel seal connecting seat 4,7 character form structures it is vertical
Section is equipped with rack structure, and the gear 1 is engaged with rack structure matching；Returning spring 3 is generally in 7 character form structure vertical sections
On extended line, one end of returning spring 3 is connected with the vertical section lower end of 7 character form structures, the other end of returning spring 3 and ground or
The mechanism that external position is fixed is fixedly connected；The steel seal connecting seat 4 includes threaded hole, and the connection for steel stamp is installed；For
Ensure connecting rod 2 motion stabilization, be additionally provided with 7 sides of the character form structure vertical section away from rack structure of connecting rod 2 sliding slot and
Rail structure 5 matched with sliding slot, on the one hand ensures the stabilization of connecting rod, another aspect combination gear 1 and rack engage so that
2 in the vertical direction of connecting rod maintains stable equilibrium state；The sensing device is as shown in Fig. 2, include Clapp oscillator, complete
Bridge current rectifying and wave filtering circuit, hysteresis loop comparator, adjustable delay circuit；In figure 3, self-oscillation is influenced in Clapp oscillator structure
The oscillation inductance L1 of frequency is formed by enameled wire loop coiling, and position of the enameled wire loop of coiling for sensing metal works, sense
Device is answered integrally to be arranged on the workpiece conveying front end of steel seal connecting seat 4；The output of Clapp oscillator and full-bridge rectifier filter electricity
The input on road is connected, and the AC signal rectifying and wave-filtering of high frequency is direct current signal by full-bridge rectification filter circuit, full-bridge rectifier filter
The output of circuit is connected with the first input of hysteresis loop comparator, and the second input of hysteresis loop comparator is connected with reference voltage module,
To compare the direct current signal size of conversion, and the hysteresis loop comparator used can avoid shaking caused false touch with tolerance is compared
Hair；The output of hysteresis loop comparator is connected with the input of adjustable delay circuit, passes through the output of the adjustable delay circuit of delay circuit
The control terminal with electric driving device is held to be electrical connected, or the transmission control signal of also corresponding connection transmission device at the same time, with the same time
Transmission device pause transmission is triggered, consequently facilitating steel seal mark operation.As shown in figure 4, the adjustable delay circuit includes differential
Circuit, monostable flipflop and multivibrator, wherein, monostable flipflop includes 555 timing chips；The input of differential circuit
It is connected with the output of hysteresis loop comparator, level signal is switched into pulse signal, differential circuit includes differential capacitance C5, differential electricity
R5 and diode D1 is hindered, one end of differential capacitance C5 is connected with the output of hysteresis loop comparator, and the other end of differential capacitance C5 is through micro-
Sub-resistance R5 is connected to ground, and differential capacitance C5 is connected with the connecting pin of differential resistance R5 with the cathode of diode D1, diode D1
Anode be connected with ground terminal；By the connection of diode D1, voltage is limited within 0.7V in the amplitude reversely beated, to protect
Demonstrate,prove the normal work of subsequent conditioning circuit；The output of differential circuit is connected with the triggering end of monostable flipflop, to trigger monostable electricity
Flat output, realizes delay function, multivibrator self-oscillation output rectangular wave, by with after logic circuit, the rectangle of output
Ripple total duration is overall to be matched with the pulse of monostable flipflop output duration, after driving unit, can trigger stepping electricity
Motor-driven work；The timing resistor of monostable flipflop includes knob adjustable resistance, and convenient working person, which rotates, adjusts timing resistor
Resistance value size, with reference to scale disk-resistance value-when m- transfer rate-coding relative displacement parameter lookup table, can determine whether adjustable electric
The resistance value section of resistance and the correspondence in metal works steel seal stamp region, very simply, will not cause existing intelligent control side
Maloperation under formula；After the square wave of a period of time is exported with logic circuit, through driving unit, Driving Stepping Motor rotates, and
With the rack movement on moving gear 1 and connecting rod 2, and then steel seal connecting seat 4 is driven to carry out steel seal mark operation, while compression and back
Multiple spring 3；After square wave output time ends, stepper motor is without output, and under the screen resilience driving of returning spring 3, connecting rod 2 will
Stress balance position is returned to, while drives steel seal connecting seat 4 to rise, waits the triggering of steel seal mark next time.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area it is general
Lead to it will be appreciated by the skilled person that can be to technical scheme technical scheme is modified or replaced equivalently, without departing from the present invention
The objective and scope of technical solution, it should all cover among scope of the presently claimed invention.
Claims (2)
- A kind of 1. combined steel seal marking device, it is characterised in that：Include gear, connecting rod, returning spring, electric driving device, steel seal Connecting seat and sensing device；The electricity driving device includes stepper motor, output shaft and the gear axis connection of stepper motor, the company 7 character form structures of the rectangular bending of bar, the horizontal segment open end of 7 character form structures are connected with hand steel seal connecting seat；7 character form structures Vertical section is equipped with rack structure, the wheel and rack structure matching engagement；Returning spring is generally in 7 character form structure vertical sections Extended line on, one end of returning spring is connected with the vertical section lower end of 7 character form structures, the other end of returning spring and ground or The mechanism that external position is fixed is fixedly connected；The steel seal connecting seat includes threaded hole, and the connection for steel stamp is installed；It is described Sensing device includes Clapp oscillator, full-bridge rectification filter circuit, hysteresis loop comparator, adjustable delay circuit；Wherein carat sprinkles The oscillation inductance that self-excited oscillatory frequency is influenced in oscillator structure is formed by enameled wire loop coiling,；The output of Clapp oscillator It is connected with the input of full-bridge rectification filter circuit, the output of full-bridge rectification filter circuit is connected with the input of hysteresis loop comparator, stagnant The output for returning comparator is connected with the input of adjustable delay circuit, the control terminal of the output terminal of adjustable delay circuit and electric driving device It is electrical connected.
- A kind of 2. combined steel seal marking device as claimed in claim 1, it is characterised in that：The adjustable delay circuit includes Differential circuit, monostable flipflop, multivibrator, with logic circuit and driving unit, differential circuit include differential capacitance, micro- Sub-resistance and diode, one end of differential capacitance are connected with the output of hysteresis loop comparator, and the other end of differential capacitance is through differential electricity Resistance is connected to ground, and differential capacitance is connected with the connecting pin of differential resistance with the cathode of diode, and anode and the ground terminal of diode connect Connect；The output of differential circuit is connected with the triggering end of monostable flipflop, and triggering monostable level is exported to realize delay function, The output of monostable flipflop is connected with the input with logic circuit respectively with the output of multivibrator, defeated with logic circuit Go out the input with driving unit to be connected；The timing resistor of the monostable flipflop includes knob adjustable resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711496007.7A CN108001060A (en) | 2017-12-31 | 2017-12-31 | A kind of combined steel seal marking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711496007.7A CN108001060A (en) | 2017-12-31 | 2017-12-31 | A kind of combined steel seal marking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108001060A true CN108001060A (en) | 2018-05-08 |
Family
ID=62049805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711496007.7A Pending CN108001060A (en) | 2017-12-31 | 2017-12-31 | A kind of combined steel seal marking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108001060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370674A (en) * | 2021-07-20 | 2021-09-10 | 重庆万桥交通科技发展有限公司 | Automatic code marking device on production line of main cable strand |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB316972A (en) * | 1928-08-07 | 1930-08-21 | Electra App Nbaugesellschaft M | Improvements in apparatus for affixing stamps, labels and the like |
| GB912592A (en) * | 1958-07-17 | 1962-12-12 | Polymark Int Ltd | Marking of articles |
| CN2156022Y (en) * | 1993-06-10 | 1994-02-16 | 广东实验工厂 | Photo controlling steel stamping machine |
| CN2236398Y (en) * | 1995-03-15 | 1996-10-02 | 王春生 | Electric speed regulating franking machine |
| CN2238739Y (en) * | 1995-04-28 | 1996-10-30 | 彭步左 | Automatic steel seal machine |
| CN2251489Y (en) * | 1996-03-12 | 1997-04-09 | 张文志 | Electric steel seal stamper |
| CN2472930Y (en) * | 2000-10-14 | 2002-01-23 | 伊春城 | Automatic steel stamp pressing device |
| CN2586294Y (en) * | 2002-11-20 | 2003-11-12 | 西安海门工贸有限责任公司 | D.C dynamo controller |
| CN101127286A (en) * | 2007-07-17 | 2008-02-20 | 西安交通大学 | Permanent magnetic machine controller based on pulse modulation technology |
| CN102979381A (en) * | 2011-09-05 | 2013-03-20 | 丁长来 | Electronic coded lock with only one button |
| CN203014467U (en) * | 2013-01-17 | 2013-06-19 | 盛世铸成科技(北京)有限公司 | A near field charging device and a charging system |
| CN203485599U (en) * | 2013-09-13 | 2014-03-19 | 河北汇金机电股份有限公司 | Downward-pressing type seal affixing driving mechanism used in seal machine |
| CN203563052U (en) * | 2013-09-04 | 2014-04-23 | 宝鸡烽火诺信科技有限公司 | A low-phase-noise voltage-controlled oscillator |
| CN105252920A (en) * | 2015-11-05 | 2016-01-20 | 浙江工业职业技术学院 | Adjustable automatic stamping machine |
| CN207790071U (en) * | 2017-12-31 | 2018-08-31 | 重庆辰罡科技有限公司 | A kind of combined steel seal marking device |
-
2017
- 2017-12-31 CN CN201711496007.7A patent/CN108001060A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB316972A (en) * | 1928-08-07 | 1930-08-21 | Electra App Nbaugesellschaft M | Improvements in apparatus for affixing stamps, labels and the like |
| GB912592A (en) * | 1958-07-17 | 1962-12-12 | Polymark Int Ltd | Marking of articles |
| CN2156022Y (en) * | 1993-06-10 | 1994-02-16 | 广东实验工厂 | Photo controlling steel stamping machine |
| CN2236398Y (en) * | 1995-03-15 | 1996-10-02 | 王春生 | Electric speed regulating franking machine |
| CN2238739Y (en) * | 1995-04-28 | 1996-10-30 | 彭步左 | Automatic steel seal machine |
| CN2251489Y (en) * | 1996-03-12 | 1997-04-09 | 张文志 | Electric steel seal stamper |
| CN2472930Y (en) * | 2000-10-14 | 2002-01-23 | 伊春城 | Automatic steel stamp pressing device |
| CN2586294Y (en) * | 2002-11-20 | 2003-11-12 | 西安海门工贸有限责任公司 | D.C dynamo controller |
| CN101127286A (en) * | 2007-07-17 | 2008-02-20 | 西安交通大学 | Permanent magnetic machine controller based on pulse modulation technology |
| CN102979381A (en) * | 2011-09-05 | 2013-03-20 | 丁长来 | Electronic coded lock with only one button |
| CN203014467U (en) * | 2013-01-17 | 2013-06-19 | 盛世铸成科技(北京)有限公司 | A near field charging device and a charging system |
| CN203563052U (en) * | 2013-09-04 | 2014-04-23 | 宝鸡烽火诺信科技有限公司 | A low-phase-noise voltage-controlled oscillator |
| CN203485599U (en) * | 2013-09-13 | 2014-03-19 | 河北汇金机电股份有限公司 | Downward-pressing type seal affixing driving mechanism used in seal machine |
| CN105252920A (en) * | 2015-11-05 | 2016-01-20 | 浙江工业职业技术学院 | Adjustable automatic stamping machine |
| CN207790071U (en) * | 2017-12-31 | 2018-08-31 | 重庆辰罡科技有限公司 | A kind of combined steel seal marking device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370674A (en) * | 2021-07-20 | 2021-09-10 | 重庆万桥交通科技发展有限公司 | Automatic code marking device on production line of main cable strand |
| CN113370674B (en) * | 2021-07-20 | 2022-06-14 | 重庆万桥交通科技发展有限公司 | Automatic code marking device on production line of main cable strand |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6174136B1 (en) | Pump control and method of operating same | |
| WO2012059983A1 (en) | Power source device and programmable controller | |
| CN207790071U (en) | A kind of combined steel seal marking device | |
| CN108001060A (en) | A kind of combined steel seal marking device | |
| AT509632A1 (en) | INDUCTIVE LIGHTING DEVICE | |
| CN105190253A (en) | Battery-less signal transmitter with wiegand sensor for gas or water meters | |
| CN207984361U (en) | A kind of steel seal mark assembly line | |
| CN101806645A (en) | Self electricity generation wireless pulling force sensor | |
| CN101359027B (en) | Large capacitance leakage measuring set | |
| CN214207530U (en) | Toothbrush with tooth brushing pressure detection function | |
| CA2434318A1 (en) | Coil impedance detection method and object detection method and apparatus using the same | |
| CN108156680A (en) | A kind of constant-power control circuit and apply its electromagnetic heating apparatus and household electrical appliance | |
| CN107984920A (en) | A kind of steel seal mark assembly line | |
| CN201496597U (en) | Self-generating tap capable of digital display on temperature | |
| KR101478920B1 (en) | Multi-functional measuring and waveform-generating equipment with a probe | |
| CN207790044U (en) | A kind of metal derby coding assembly line | |
| CN205281306U (en) | Intelligence exchanges and purifies constant voltage power supply | |
| CN204013171U (en) | Vibrational energy transducing head and vibrational energy collecting circuit | |
| CN204456358U (en) | Intelligent closestool | |
| CN108001047A (en) | A kind of metal derby coding assembly line | |
| CN201620844U (en) | Self-generation wireless tension sensor | |
| CN203433648U (en) | Humpback intelligent correcting apparatus | |
| CN106702620A (en) | Sewing machine control system | |
| CN207453038U (en) | A kind of intelligent closestool with display function | |
| CN107790840B (en) | Electronic control system for global universal wide voltage input electric soldering iron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |