CN106455348A - PCB (Printed Circuit Board) lift etching machine and using method thereof - Google Patents
PCB (Printed Circuit Board) lift etching machine and using method thereof Download PDFInfo
- Publication number
- CN106455348A CN106455348A CN201611068015.7A CN201611068015A CN106455348A CN 106455348 A CN106455348 A CN 106455348A CN 201611068015 A CN201611068015 A CN 201611068015A CN 106455348 A CN106455348 A CN 106455348A
- Authority
- CN
- China
- Prior art keywords
- gear
- screw rod
- pcb plate
- control box
- etching machine
- 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
- 238000005530 etching Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000005260 corrosion Methods 0.000 claims description 38
- 230000007797 corrosion Effects 0.000 claims description 38
- 230000003028 elevating effect Effects 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 11
- 230000000630 rising effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 210000003437 trachea Anatomy 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 229920000742 Cotton Polymers 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
- H05K3/068—Apparatus for etching printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0147—Carriers and holders
- H05K2203/0165—Holder for holding a Printed Circuit Board [PCB] during processing, e.g. during screen printing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
- H05K2203/1105—Heating or thermal processing not related to soldering, firing, curing or laminating, e.g. for shaping the substrate or during finish plating
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- ing And Chemical Polishing (AREA)
Abstract
The invention relates to a PCB (Printed Circuit Board) lift etching machine and a using method thereof. The lift etching machine comprises a base, wherein an etching tank, a bubble generator and a heating temperature control device are arranged on the base; the bubble generator is communicated with the etching tank through an air pipe; an upper cover is arranged on the etching tank, a lifting device is arranged above the upper cover, and a vibration device is arranged on the upper cover; the lifting device comprises a top plate, a lift control box and a transmission device; a supporting column is arranged on the base and is used for supporting the top plate; the transmission device comprises a lifting motor, a driving gear, a transmission gear, an output gear, a guide rod and a screw rod; the upper end of the screw rod penetrates through the lower end of the top plate and the upper cover, and the lower end of the screw rod is connected with the upper cover in a threaded manner; the upper end of the guide rod is fixed on the lower surface of the top plate, and the lower end of the guide rod runs through a guide sleeve; the guide sleeve is arranged on the upper cover in a penetrating manner; the driving gear is arranged on the output shaft of the lifting motor; the output gear is arranged at the upper end of the screw rod; and the transmission gear is in meshed transmission with the driving gear and the output gear. The PCB lift etching machine has the advantages of simple structure, convenience in operation and popularization and high etching efficiency.
Description
Technical field
The present invention relates to a kind of pcb plate lifting etching machine and using method.
Background technology
With the development of society, the substantial amounts of use in life of smart electronicses product, pcb circuit board also applies to intelligence in a large number
In energy electronic product.And the Creative Lab of many enterprises and its developer, colleges and universities' electrical type, mainly pass through heat-transferring method
To make circuit board, during this, the corrosion to circuit board is one of very important program.Many Creative Labs are to electricity
The corrosion of road plate also rests on the stage of manual corrosion, both made corrosive liquid wash away PCB circuit board by rocking corrosion casing, and entered
And accelerate to corrode PCB circuit board.But corroded by manual, the development in laboratory personnel substantial amounts of time can be wasted,
So that work efficiency is greatly reduced, virtually increased the cost of enterprise.
On market today, partial corrosion case is to produce bubble by air pump, corrodes the corrosive liquid in case by bubble agitation,
So as to accelerate the exposure rate of corrosive liquid and PCB plate surface, while passing through heating rod, the temperature of corrosive liquid, Liang Zhexiang is heated
Mutually promote, and then accelerate the corrosion of PCB plate, but this method etching time is still longer.
Content of the invention
It is an object of the invention to provide a kind of pcb plate lifting etching machine and using method.
In order to solve above-mentioned technical problem, a kind of technical scheme of the present invention is that a kind of pcb plate lifts etching machine, including
Base, is provided with corrosion case, bubble generator, heating and temperature controlling device on the base, the heating and temperature controlling device is to corroding case
Heated, bubble generator transtracheal is connected with corrosion case, the corrosion case is provided with lid, and above the side of covering is provided with drive
The lowering or hoisting gear of dynamic top cover lifting, described on cover and be provided with shaking device, the lowering or hoisting gear includes to set top board, elevating control
Box, actuating device, are provided with the support column is supported by top board on the base, the actuating device include lifting motor,
Driving gear, travelling gear, output gear, guide rod, screw rod, screw rod upper end wears top board, and lower end wears lid, screw rod lower end with
Upper lid is threaded, and guide rod upper end is fixed on top board lower surface, and lower end passes through guide pin bushing, and guide pin bushing is located in and covers, driving gear
It is arranged on the output shaft of lifting motor, travelling gear is arranged on top board, output gear is arranged on screw rod upper end, travelling gear
With driving gear, output gear engaged transmission, lifting motor, driving gear, travelling gear, output gear outer housing are set by protecting
Cover, is provided with rising button, declines button, stop button, be provided with lifting controller in elevating control box on elevating control box,
Rising button, decline button, stop button, lifting motor are all electrically connected with lifting controller.
Further, described trachea one end is connected with bubble generator, and the other end stretches into the bottom of corrosion case.
Further, the heating and temperature controlling device includes to be arranged on the heating rod of corrosion case side wall, is arranged on corrosion bottom
The temperature sensor in portion, the temperature controller being arranged on base, the heating rod, temperature sensor and temperature controller are electrical
Connection, the temperature controller is arranged in temperature control box, and temperature control box is arranged on base.
Further, the shaking device includes to be arranged on battery case, the handle of cap upper surface, is arranged on lid following table
The motor in face, is provided with battery in battery case, be provided with the shift knob of controlled motor start and stop on battery case, and switch is pressed
Button, motor are all electrically connected with the battery, and the motor side is symmetrically arranged with two support bases, and support base bottom offers level
Hole, horizontal in the hole is equipped with pull bar, and pull bar two ends are provided with suspension hook, is provided with eccentric on the output shaft of the motor, eccentric
Wheel lower surface is provided with prominent axle, and prominent axle is connected with pull bar.
Further, on the side wall of the support base, cushion is provided with, the cushion is cotton like material.
A kind of pcb plate lifts the using method of etching machine：
（1）Corrosive liquid is prepared in corrosion case, by the energising of bubble generator and temperature control box, bubble generator work
Making, bubble being produced in corrosive liquid, temperature controller control heating rod is to heating to corrosive liquid；
（2）The rising button on elevating control box is pressed, lifting motor is rotated forward, driving gear drives output gear through travelling gear
Rotate, so that screw rod is rotated, screw rod is rotated to drive and covers liter, is made suspension hook depart from corrosion case, is pressed on elevating control box
Stop button, it would be desirable to which the pcb plate for being corroded is on suspension hook；
（3）The decline button on elevating control box is pressed, inverts lifting motor, driving gear drives output gear through travelling gear
Wheel is rotated, so that screw rod is rotated, screw rod is rotated and drives lid to decline so that upper lid covers corrosion case, presses on battery case
Start button, makes rotation of the electric motor starting with movable eccentric wheel, and eccentric drives the traverse motion of pull bar, and pull bar drives suspension hook
And pcb plate thereon is moved back and forth, and then the effect of vibrations is formed, accelerate the friction between pcb plate surface and corrosive liquid, and then
Improve the corrosion efficiency of pcb plate.
Further, when temperature sensor is detected, temperature in corrosion case is too high, and during more than setting value, temperature sensor will
Signal passes temperature controller back, and temperature controller control heating rod stops heating.
Compared with prior art, the invention has the advantages that：Simple structure, easy to operate, it is easy to promote, corrosion
Efficiency high.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of Fig. 1 of the present invention；
Fig. 3 is the structural representation of shaking device；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is Fig. 3 top view；
Fig. 6 is Fig. 3 upward view.
In figure：
1- corrodes case；2- bubble generator；3- shaking device；Cover on 3-1；3-2 battery case；3-3 handle；3-4 motor；3-5 is inclined
Heart wheel；3-6 pull bar；3-7 support base；3-8 suspension hook；4- heating rod；5- temperature sensor；6- temperature control box；7- base；8- is propped up
Dagger；9- top board；10- elevating control box；11- protective cover；12- lifting motor；13- output gear；14- screw rod；15- guide rod；
16- guide pin bushing；17- driving gear；18- travelling gear.
Specific embodiment
As shown in figures 1 to 6, a kind of pcb plate lifts etching machine, including base 7, is provided with corrosion case 1, gas on the base 7
Bubble generator 2, heating and temperature controlling device, the heating and temperature controlling device to corrode case 1 heat, 2 transtracheal of bubble generator with
Corrosion case 1 is connected, and the corrosion case 1 is provided with lid 3-1, is provided with driving and covers the lifting of 3-1 lifting above upper lid 3-1
Device, is provided with shaking device 3 on the upper lid 3-1, and the lowering or hoisting gear includes to set top board 9, elevating control box 10, transmission dress
Put, the support column 8 is supported by top board 9 on the base 7, is provided with, the actuating device includes lifting motor 12, actively
Gear 17, travelling gear 18, output gear 13, guide rod 15, screw rod 14,14 upper end of screw rod wears top board 9, and lower end wears lid 3-
1,14 lower end of screw rod is threadeded with upper lid 3-1, and 15 upper end of guide rod is fixed on 9 lower surface of top board, and lower end passes through guide pin bushing 16, guide pin bushing
16 are located on lid 3-1, and driving gear 17 is arranged on the output shaft of lifting motor 12, and travelling gear 18 is arranged on top board 9
On, output gear 13 is arranged on 14 upper end of screw rod, travelling gear 18 and driving gear 17,13 engaged transmission of output gear, lifting
Motor 12, driving gear 17, travelling gear 18,13 outer housing of output gear are set by protective cover 11, are provided with elevating control box 10
Rise button, decline and in button, stop button, elevating control box 10, is provided with lifting controller, rise button, decline button,
Stop button, lifting motor 12 are all electrically connected with lifting controller.
In the present embodiment, described trachea one end is connected with bubble generator 2, and the other end stretches into the bottom of corrosion case 1.
In the present embodiment, the heating and temperature controlling device includes to be arranged on the heating rod 4 of corrosion 1 side wall of case, is arranged on corruption
The temperature sensor 5 of erosion 1 bottom of case, the temperature controller being arranged on base 7, the heating rod 4, temperature sensor 5 and temperature
Degree controller electric connection, the temperature controller is arranged in temperature control box 6, and temperature control box 6 is arranged on base 7.
In the present embodiment, the shaking device 3 includes to be arranged on battery case 3-2, the handle 3-3 of lid 3-1 upper surface,
The motor 3-4 of lid 3-1 lower surface is arranged on, and battery is provided with battery case 3-2, is provided with controlled motor on battery case 3-2
The shift knob of 3-4 start and stop, shift knob, motor 3-4 are all electrically connected with the battery, and the motor 3-4 side is symmetrical
It is provided with two support base 3-7, support base 3-7 bottom and lateral aperture is offered, horizontal in the hole is equipped with pull bar 3-6, pull bar 3-6 two
End is provided with suspension hook 3-8, is provided with eccentric 3-5 on the output shaft of the motor 3-4, and eccentric 3-5 lower surface is provided with prominent
Shaft, prominent axle is connected with pull bar 3-6.
In the present embodiment, on the side wall of the support base 3-7, cushion is provided with, the cushion is cotton like material.
A kind of pcb plate lifts the using method of etching machine：
（1）Corrosive liquid is prepared in corrosion case 1, by the energising of bubble generator 2 and temperature control box 6, bubble generator 2
Work, produces bubble in corrosive liquid, and temperature controller control heating rod 4 pairs is heated to corrosive liquid；
（2）The rising button on elevating control box 10 is pressed, lifting motor 12 is rotated forward, and driving gear 17 is driven through travelling gear 18
Output gear 13 is rotated, so that screw rod 14 is rotated, screw rod 14 is rotated to drive and covers 3-1 rising, makes suspension hook 3-8 depart from corrosion case
1, press the stop button on elevating control box 10, it would be desirable to which the pcb plate for being corroded is on suspension hook 3-8；
（3）The decline button on elevating control box 10 is pressed, inverts lifting motor 12, driving gear 17 is carried through travelling gear 18
Dynamic output gear 13 is rotated, so that screw rod 14 is rotated, screw rod 14 is rotated to drive and covers 3-1 decline so that above lid 3-1 covers corruption
Erosion case 1, presses the start button on battery case 3-2, makes motor 3-4 start the rotation with movable eccentric wheel 3-5, and eccentric 3-5 is carried
The traverse motion of dynamic pull bar 3-6, pull bar 3-6 drives suspension hook 3-8 and pcb plate thereon to move back and forth, and then forms vibrations
Effect, accelerate the friction between pcb plate surface and corrosive liquid, and then improve the corrosion efficiency of pcb plate.
In the present embodiment, when temperature sensor is detected, temperature in corrosion case 1 is too high, and during more than setting value, temperature is passed
Sensor 5 passes signal back temperature controller, and temperature controller control heating rod 4 stops heating.
On be classified as preferred embodiment, the object, technical solutions and advantages of the present invention are further described, institute
It should be understood that presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement that is made etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of pcb plate lifts etching machine, it is characterised in that：Including base, corrosion case, bubble is provided with the base and is occurred
Device, heating and temperature controlling device, the heating and temperature controlling device is heated to corroding case, and bubble generator transtracheal is connected with corrosion case
Logical, the corrosion case is provided with lid, and above the side of covering is provided with the lowering or hoisting gear of driving top cover lifting, described on cover and be provided with
Shaking device, the lowering or hoisting gear includes to set top board, elevating control box, actuating device, is provided with the base to enter top board
The support column that row is supported, the actuating device includes lifting motor, driving gear, travelling gear, output gear, guide rod, screw rod,
Screw rod upper end wears top board, and lower end wears lid, and screw rod lower end is threadeded with upper lid, and guide rod upper end is fixed on top board following table
Face, lower end passes through guide pin bushing, and guide pin bushing is located in and covers, and driving gear is arranged on the output shaft of lifting motor, and travelling gear sets
Put on top board, output gear is arranged on screw rod upper end, travelling gear and driving gear, output gear engaged transmission, lifting electricity
Machine, driving gear, travelling gear, output gear outer housing are set by protective cover, be provided with rising button, decline and press on elevating control box
Button, stop button, are provided with lifting controller in elevating control box, rise button, decline button, stop button, lifting motor
All it is electrically connected with lifting controller.
2. pcb plate according to claim 1 lifts etching machine, it is characterised in that：Described trachea one end and bubble generator
It is connected, the other end stretches into the bottom of corrosion case.
3. pcb plate according to claim 2 lifts etching machine, it is characterised in that：The heating and temperature controlling device includes to arrange
Heating rod, the temperature sensor for being arranged on corrosion bottom portion in corrosion case side wall, the temperature controller being arranged on base, institute
State heating rod, temperature sensor and temperature controller to be electrically connected with, the temperature controller is arranged in temperature control box, temperature
Control box is arranged on base.
4. pcb plate according to claim 3 lifts etching machine, it is characterised in that：The shaking device includes to be arranged on
The battery case of cap upper surface, handle, are arranged on the motor of lid lower surface, are provided with battery in battery case, arrange on battery case
There is the shift knob of controlled motor start and stop, shift knob, motor are all electrically connected with the battery, the motor side is symmetrical
Two support bases are provided with, support base bottom offers lateral aperture, horizontal in the hole is equipped with pull bar, pull bar two ends are provided with hangs
Hook, is provided with eccentric on the output shaft of the motor, eccentric lower surface is provided with prominent axle, and prominent axle is connected with pull bar
Connect.
5. pcb plate according to claim 1 lifts etching machine, it is characterised in that：It is provided with the side wall of the support base
Cushion.
6. a kind of pcb plate lifts the using method of etching machine, lifts etching machine using pcb plate as claimed in claim 4, and which is special
Levy and be：
（1）Corrosive liquid is prepared in corrosion case, by the energising of bubble generator and temperature control box, bubble generator work
Making, bubble being produced in corrosive liquid, temperature controller control heating rod is to heating to corrosive liquid；
（2）The rising button on elevating control box is pressed, lifting motor is rotated forward, driving gear drives output gear through travelling gear
Rotate, so that screw rod is rotated, screw rod is rotated to drive and covers liter, is made suspension hook depart from corrosion case, is pressed on elevating control box
Stop button, it would be desirable to which the pcb plate for being corroded is on suspension hook；
（3）The decline button on elevating control box is pressed, inverts lifting motor, driving gear drives output gear through travelling gear
Wheel is rotated, so that screw rod is rotated, screw rod is rotated and drives lid to decline so that upper lid covers corrosion case, presses on battery case
Start button, makes rotation of the electric motor starting with movable eccentric wheel, and eccentric drives the traverse motion of pull bar, and pull bar drives suspension hook
And pcb plate thereon is moved back and forth, and then the effect of vibrations is formed, accelerate the friction between pcb plate surface and corrosive liquid, and then
Improve the corrosion efficiency of pcb plate.
7. pcb plate according to claim 6 lifts the using method of etching machine, it is characterised in that：When temperature sensor is examined
Measure corrosion case in temperature too high, during more than setting value, temperature sensor passes signal back temperature controller, temperature controller control
Heating rod processed stops heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611068015.7A CN106455348A (en) | 2016-11-29 | 2016-11-29 | PCB (Printed Circuit Board) lift etching machine and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611068015.7A CN106455348A (en) | 2016-11-29 | 2016-11-29 | PCB (Printed Circuit Board) lift etching machine and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106455348A true CN106455348A (en) | 2017-02-22 |
Family
ID=58218919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611068015.7A Pending CN106455348A (en) | 2016-11-29 | 2016-11-29 | PCB (Printed Circuit Board) lift etching machine and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106455348A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620065A (en) * | 2017-09-18 | 2018-01-23 | 宋彦震 | A kind of full-automatic PCB corrosion case |
| CN107748132A (en) * | 2017-09-15 | 2018-03-02 | 超威电源有限公司 | A kind of hot environment grid corrosion method of testing and its device |
| CN109549489A (en) * | 2019-01-23 | 2019-04-02 | 苏州咖博士咖啡系统科技有限公司 | A kind of Coffee outlet structure of automatic lifting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2610848A1 (en) * | 1987-02-13 | 1988-08-19 | Quinquet Jean Paul | Device for the chemical treatment of articles such as printed circuits or etchings |
| US4957583A (en) * | 1989-04-28 | 1990-09-18 | Analog Devices, Inc. | Apparatus for etching patterned substrates |
| CN102803562A (en) * | 2009-06-25 | 2012-11-28 | 3M创新有限公司 | Methods of wet etching a self-assembled monolayer patterned substrate and metal patterned articles |
| CN104630773A (en) * | 2015-03-07 | 2015-05-20 | 宋彦震 | Automatic PCB board corrosion chamber |
| CN105555048A (en) * | 2016-02-22 | 2016-05-04 | 苏州市亿利华电子有限公司 | Automatic etching apparatus for PCB (printed circuit board) |
-
2016
- 2016-11-29 CN CN201611068015.7A patent/CN106455348A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2610848A1 (en) * | 1987-02-13 | 1988-08-19 | Quinquet Jean Paul | Device for the chemical treatment of articles such as printed circuits or etchings |
| US4957583A (en) * | 1989-04-28 | 1990-09-18 | Analog Devices, Inc. | Apparatus for etching patterned substrates |
| CN102803562A (en) * | 2009-06-25 | 2012-11-28 | 3M创新有限公司 | Methods of wet etching a self-assembled monolayer patterned substrate and metal patterned articles |
| CN104630773A (en) * | 2015-03-07 | 2015-05-20 | 宋彦震 | Automatic PCB board corrosion chamber |
| CN105555048A (en) * | 2016-02-22 | 2016-05-04 | 苏州市亿利华电子有限公司 | Automatic etching apparatus for PCB (printed circuit board) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748132A (en) * | 2017-09-15 | 2018-03-02 | 超威电源有限公司 | A kind of hot environment grid corrosion method of testing and its device |
| CN107620065A (en) * | 2017-09-18 | 2018-01-23 | 宋彦震 | A kind of full-automatic PCB corrosion case |
| CN109549489A (en) * | 2019-01-23 | 2019-04-02 | 苏州咖博士咖啡系统科技有限公司 | A kind of Coffee outlet structure of automatic lifting |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |