CN108928665A - A kind of transmission device and transmission control method - Google Patents
A kind of transmission device and transmission control method Download PDFInfo
- Publication number
- CN108928665A CN108928665A CN201710381980.8A CN201710381980A CN108928665A CN 108928665 A CN108928665 A CN 108928665A CN 201710381980 A CN201710381980 A CN 201710381980A CN 108928665 A CN108928665 A CN 108928665A
- Authority
- CN
- China
- Prior art keywords
- directive wheel
- guide rod
- movable runner
- unreeling
- scroll
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/23—Coordinates, e.g. three dimensional coordinates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/30—Forces; Stresses
- B65H2515/31—Tensile forces
- B65H2515/314—Tension profile, i.e. distribution of tension, e.g. across the material feeding direction or along diameter of web roll
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
The invention discloses a kind of transmission device and transmission control methods, roll-to-roll transmission for band, the transmission device includes horizontal positioned unreeling shaft and Scroll, further include and unreels the first directive wheel of axis connection, with the third directive wheel of winding axis connection, and the second directive wheel between the first directive wheel and third directive wheel, regulating mechanism is provided between first directive wheel and the second directive wheel, buffer gear is provided between second directive wheel and third directive wheel, buffer gear and regulating mechanism cooperate, realize that band maintains constant tension in transmission process, make to unreel and wind separation control simultaneously, it is simple with structure, the advantages that easy to operate and stability is high.
Description
Technical field
The present invention relates to transmission device fields, and in particular to one kind can keep constant tension and have the transmission of buffering
Device and transmission control method.
Background technique
Roll-to-roll transmission mode is a kind of high-effect, successional production method, is had in weaving, papermaking and electronics industry
It is widely applied.In recent years, as country proposes that energy saving policy uses new energy, solar battery with people are advocated
It is developed rapidly as the novel environment friendly energy, wherein thin-film solar cells is due to its function admirable, light portable etc. excellent
It puts and is widely used in the fields such as solar battery automobile, building roof, wearable electronic.It is produced in thin-film solar cells
In the process, need to carry out roll-to-roll transmission, after such film is rolled out from unreeling shaft, can be added certain special-purposes function or
Certain surface processing is carried out, or is wound on Scroll again after being packed to Flexible Manufacture component, in order to subsequent
Technological operation.
The key of roll-to-roll transmission technology is that internal transmission device, general transmission device need retractable volume synchronous
Operation, during winding and unreeling, the pressure of package changes with the variation of roll diameter, it is difficult to ensure that opening when winding
Power is constant, when overtension, it is serious to will cause deformation of thin membrane, or even damage, and if tension is too small, film can relax again
Wrinkle.Therefore, to being able to maintain constant tension and not needing the research and development of the synchronous transmission device carried out of folding and unfolding spool have very much must
It wants.
In published technology, CN103872266 disclose a kind of organic optoelectronic device roll-to-roll Preparation equipment and
Preparation method, the equipment pass through tension sensing device to the feedback of tension, to control the revolving speed of rotational speed devices adjustment retractable volume
To achieve the effect that adjusting tension in real time ensures tension stability, but its system tension need to be set in advance, and system can not work
Shi Zihang adjusts tension, and control using tension sensing device rotational speed devices adjust retractable volume revolving speed system cost compared with
Height, and controlling mechanism is complicated.CN105253674 discloses a kind of steel band transmitting device, passes through arrangement uncoiling and winding variable-frequency electric
Machine carries out the tension force of segmented, the device structure and control to the transmission device for the steel band for needing to carry out annealing treating process
Mechanism is more complex, inconvenient.CN105246695 discloses a kind of for synchronizing the roll-to-roll transmission that nano thin-film is continuously conveyed
Film is set between a pair of of roller by the device and method of equipment, needs to accurately control between roller and nano thin-film
Contact surface, it is complicated for operation.
Roll-to-roll transmission technology disclosed above requires that folding and unfolding spool works asynchronously, from using, it is impossible to be used in receives
Certain time is needed to carry out processing or band for winding again after certain specific technological operations to band during unreeling
Onto Scroll, i.e., discrete roll-to-roll transmission device of band, also, it is complicated for the tension force mechanism of band, it needs
The process control of precision, system cost are higher.
Summary of the invention
It is an object of the invention to for current roll-to-roll transmitting device is complicated for operation, tension force is unstable, requires to receive
Unreeling shaft rotate synchronously the shortcomings that, provide it is a kind of can guarantee constant tension and be not required to folding and unfolding spool synchronous operation transmission device and
Its control method.
To solve the above-mentioned problems, the present invention provides a kind of novel transmission device, for the roll-to-roll transmission of band,
It is oriented to the first directive wheel for unreeling axis connection with the third of winding axis connection including horizontal positioned unreeling shaft and Scroll
Wheel, and the second directive wheel between the first directive wheel and third directive wheel, wherein the first directive wheel and the second directive wheel it
Between be provided with regulating mechanism, be provided with buffer gear between the second directive wheel and third directive wheel；Regulating mechanism includes putting vertically
The first guide rod set and the first movable runner that can be moved up and down along the first guide rod, and pass through the band of the first movable runner and the
One guide rod is parallel；Buffer gear includes second guide rod parallel with the first guide rod, and can move up and down along the second guide rod second
Movable runner, and have certain angle between the band and the second guide rod for passing through the second movable runner.
Further, which further includes the upper end position inductive probe and lower end position on the first guide rod
Inductive probe.
Further, which further includes the first sensor positioned at unreeling shaft outlet end, and is entered positioned at Scroll
The second sensor at mouth end；First sensor is for detecting the length that unreeling shaft unreels, and second sensor is for detecting Scroll
The length of winding.
Further, the first of the transmission device the movable runner is connected with the first pouring weight, and the weight-adjustable of the first pouring weight
Section.
Further, the second of the transmission device the movable runner is connected with the second pouring weight.
Further, a kind of transmission control method is based on the transmission device, band is placed on unreeling shaft first, according to
It is secondary to pass through the first directive wheel, the first movable runner, the second directive wheel, the second movable runner and third directive wheel, it is wound into winding
On axis；Transmission control method includes：
Step 1 starts unreeling shaft, and the first movable runner moves down along the first guide rod, when detecting that the first movable runner reaches
When first position, stop unreeling；
Step 2 starts Scroll, and the second movable runner moves up along the second guide rod, the first movable runner along the first guide rod to
Upper movement stops winding when detecting that the first movable runner reaches the second position；
It is repeated in step 1 and step 2, completes the separation control for unreeling, winding.
Further, which is that is detected by the location sensitive detector being arranged on the first guide rod
One movable runner reaches first position or the second position.
Further, a kind of transmission control method is based on the transmission device, band is placed on unreeling shaft first,
The first directive wheel, the first movable runner, the second directive wheel, the second movable runner and third directive wheel are passed sequentially through, receipts are wound into
On spool；Transmission control method includes：
Step 1 starts unreeling shaft, and the first movable runner moves down along the first guide rod, when detect unreeling shaft unreels length
When reaching the first length, stop unreeling；
Step 2 starts Scroll, and the second movable runner moves up along the second guide rod, the first movable runner along the first guide rod to
Upper movement stops winding when the winding length for detecting Scroll reaches the second length；
It is repeated in step 1 and step 2, completes the separation control for unreeling, winding.
Further, which put by being located at the first sensor detection unreeling shaft of unreeling shaft outlet end
Whether the length of volume reaches the first length；Second sensor by being located at Scroll arrival end detects the length of Scroll winding
Whether second length is reached.
Compared with prior art, the present invention one of at least has the advantages that：
1, in transmission process, regulating mechanism and buffer gear cooperate and play adjusting buffering work to the tension fluctuation of band
With to maintain band constant tension in transmission process.
2, compared with the roll-to-roll transmission of the prior art, it can make to unreel, wind separation control, operation simple with structure
The convenient and high feature of stability.
Detailed description of the invention
In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines
Attached drawing, the present invention is described in further detail, wherein
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is buffer gear strip location change procedure in wrapup procedure；
In figure, 1- unreeling shaft, the first directive wheel of 2-, the first guide rod of 3-, the movable runner of 4- first, the first pouring weight of 5-, the upper end 6- position
Set inductive probe, 7- lower end position inductive probe, the second directive wheel of 8-, the second guide rod of 9-, the movable runner of 10- second, 11-
Second pouring weight, 12- third directive wheel, 13- Scroll, 14- band, 15- regulating mechanism, 16- buffer gear, 17- station.
Specific embodiment
Hereinafter reference will be made to the drawings, and a preferred embodiment of the present invention will be described in detail.It should be appreciated that preferred embodiment
Only for illustrating the present invention, rather than limiting the scope of protection of the present invention.
Embodiment 1
The present embodiment is related to a kind of transmission device, for the roll-to-roll transmission of band, as shown in Figure 1, it mainly includes that level is put
The unreeling shaft 1 and Scroll 13 set, further include the first directive wheel 2 connecting with unreeling shaft 1, and the third connecting with Scroll 13 is led
To wheel 12, and the second directive wheel 8 between the first directive wheel 2 and third directive wheel 12, wherein the first directive wheel 2 and the
It is provided with regulating mechanism 15 between two directive wheels 8, is provided with buffer gear 16 between the second directive wheel 8 and third directive wheel 12；
Regulating mechanism 15 includes the first movable runner 4 that first placed vertically guide rod 3 and can move up and down along the first guide rod 3, and logical
The band 14 for crossing the first movable runner 4 is parallel with the first guide rod 3；Buffer gear 16 includes parallel with the first guide rod 3 second leading
Bar 9, and the second movable runner 10 that can be moved up and down along the second guide rod 9, and pass through the band 14 of the second movable runner 10 and the
There is certain angle between two guide rods 9.The angle changes with the variation of strap tension.
It preferably, further include the upper end position inductive probe 6 on the first guide rod 3 and lower end position in the present embodiment
Inductive probe 7 is set, the first movable runner 4 is incuded by the sensing point arranged in first position and the second position, with this reality
Now automatically control unreeling shaft 1 unreels movement and the winding of Scroll 13 movement.It in other embodiments of the invention, can be with
By presetting output quantity, the length of length and Scroll 13 winding unreeled including unreeling shaft 1 manually controls unreeling shaft 1
Unreel movement and the winding of Scroll 13 movement；Alternatively, first sensor can be arranged in the outlet end of unreeling shaft 1, it is used for
Second sensor is arranged in the arrival end of Scroll 13, for detecting the winding of Scroll 13 in the length that detection unreeling shaft 1 unreels
Length, the automatic control that winding is realized with this, unreels movement.
In the present embodiment, the first movable runner 4 is connected with the first pouring weight 5, and the connection type use of pouring weight and movable wheel is inserted
The mounting means connect, in other embodiments of the invention, the connection type of pouring weight and movable runner can also be using bonding.
In the present embodiment, the second movable runner 10 is connected with the second pouring weight 11.
In the present embodiment, band 14 refers to the thin-film material of one fixed width.In other embodiments of the invention, band 14
It can also be the thin-film material of fiber, flexible metal band or unlimited width.
In the present embodiment, the weight of the first pouring weight 5 is pre-set according to the tension of the thin-film material of one fixed width, at this
In the other embodiments of invention, the weight of the first pouring weight 5 can also the tensile requirements according to needed for the type of band 14, Scroll 13
Difference is adjusted.
Embodiment 2
The present embodiment is related to a kind of transmission control method, with reference to attached drawing 1, band is placed on unreeling shaft 1 first, is passed sequentially through
First directive wheel 2, the first movable runner 4, the second directive wheel 8, the second movable runner 10, third directive wheel 12 and station 17 twine
On Scroll 13.
Transmission control method in the present embodiment includes the following steps：
Step 1 starts unreeling shaft 1, and the first movable runner 4 and 5 entirety of the first pouring weight are moved down along the first guide rod 3, and second can
Turn wheel 10 and the second pouring weight 11 are moved down along the second guide rod 9, when the first movable runner 4 and the first 5 uniform motion of pouring weight, the
Two movable runners 10 and the second pouring weight 11 move to original state along the second guide rod 9, when lower end position inductive probe 7 detects
When reaching first position to the first movable runner 4, stop unreeling；
Specifically, after placing band, the first movable runner 4 is located at upper end position inductive probe 6 and lower end position
Between inductive probe 7, at this point, the tension of band 14 is the half of the first movable runner 4 and 5 gravity of the first pouring weight, in flat
Weighing apparatus state.
When unreeling beginning, 14 tension of band reduces, the gravity of the first of regulating mechanism 15 movable runner 4 and the first pouring weight 5
Greater than the tension of band, and entirety is moved down along the first guide rod 3, at this point, the second movable runner 10 and the whole edge of the second pouring weight 11
Second guide rod 9 moves down, until when the first movable runner 4 and the first 5 uniform motion of pouring weight of regulating mechanism 15, the second movable runner
10 and the second pouring weight 11 is whole moves to original state along the second guide rod 9 and keep, the first of regulating mechanism 15 can turn at this time
The gravity of wheel 4 and the first pouring weight 5 is twice of strap tension, there is buffering to adjust the tension fluctuation that band unreels generation and makees
With, when lower end position inductive probe 7 detect the first movable runner 4 move down reach first position when, stop unreeling；
Step 2 starts Scroll 13, and the second movable runner 10 and the second pouring weight 11 are moved up along the second guide rod 9, at this point, the
One movable runner 4 and the whole beginning of the first pouring weight 5 are moved up along the first guide rod 3, the second movable runner 10 and the second pouring weight 11
Initial position is moved downward to along the second guide rod 9 and is kept, when upper end position inductive probe 6 detects the first movable runner 4
When reaching the second position, stop winding；
Specifically, when winding initial, the tension of band 14 increases, and generates unexpected acceleration shock, causes tension fluctuation, second can
Turn wheel 10 is moved up with 11 entirety of the second pouring weight along the second guide rod 9, and as shown in Fig. 2,2. band 14 is moved to from position
1., band 14 and the angle of the second guide rod 9 become larger for position, because the tension of band 14 increases, lead to the first movable runner 4 and first
Pouring weight 5 is whole to move up along the first guide rod 3, the first movable runner of 14 tension of band of buffer gear 16 because of regulating mechanism 15
4 and the first pouring weight 5 is whole moves up and become smaller, thus cause the second movable runner 10 and the second pouring weight 11 integrally along the second guide rod 9
It moves down, 1. 2. band 14 is moved to position from position, restore to equilibrium state, to rise to the fluctuation of winding initial stage tension
Stop receiving when upper end position inductive probe 6 detects that the first movable runner 4 moves up the arrival second position to buffer function
Volume；
It is repeated in step 1 and step 2, realizes the separation control for unreeling and winding.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no need and unable to be exhaustive to all embodiments.And obvious variation extended from this or change
It moves among still in the scope of protection of the invention.
Claims (9)
1. a kind of transmission device, for the roll-to-roll transmission of band, including horizontal positioned unreeling shaft and Scroll, feature exists
In described device includes third directive wheel and position with the winding axis connection with first directive wheel for unreeling axis connection
The second directive wheel between first directive wheel and the third directive wheel, wherein first directive wheel and described the
It is provided with regulating mechanism between two directive wheels, is provided with buffer gear between second directive wheel and the third directive wheel；
The regulating mechanism include the first guide rod for placing vertically and can along the first movable runner that first guide rod moves up and down, and
It is parallel with first guide rod by the band of the described first movable runner；The buffer gear includes flat with first guide rod
The second capable guide rod, and can be along the second movable runner that second guide rod moves up and down, and pass through the described second movable runner
Band and second guide rod between have certain angle.
2. transmission device according to claim 1, which is characterized in that described device further includes being located on first guide rod
Upper end position inductive probe and lower end position inductive probe.
3. transmission device according to claim 1, which is characterized in that described device further includes unreeling axial outlet positioned at described
The first sensor at end, and the second sensor positioned at the Scroll arrival end；The first sensor is described for detecting
The length that unreeling shaft unreels, the second sensor are used to detect the length of the Scroll winding.
4. transmission device according to claim 1 or 2 or 3, which is characterized in that the first movable runner is connected with first
Pouring weight, and the weight-adjustable section of first pouring weight.
5. transmission device according to claim 4, which is characterized in that the second movable runner is connected with the second pouring weight.
6. a kind of transmission control method, based on the transmission device as described in claims 1 or 2 or 4 or 5, which is characterized in that first
The band is placed on the unreeling shaft, first directive wheel, the first movable runner, described second are passed sequentially through
Directive wheel, the second movable runner and the third directive wheel, are wound on the Scroll；The transmission control method packet
It includes：
Step 1 starts the unreeling shaft, and the first movable runner is moved down along first guide rod, described when detecting
When first movable runner reaches first position, stop unreeling；
Step 2 starts the Scroll, and the second movable runner is moved up along second guide rod, and described first is movable
Runner is moved up along first guide rod, when detecting that the described first movable runner reaches the second position, stops winding；
It is repeated in the step 1 and step 2, completes the separation control for unreeling, winding.
7. according to the method described in claim 6, it is characterized in that, the method is by being arranged on first guide rod
Location sensitive detector reaches the first position or the second position to detect the described first movable runner.
8. a kind of transmission control method, based on the transmission device as described in claim 1 or 3 or 4 or 5, which is characterized in that first
The band is placed on the unreeling shaft, first directive wheel, the first movable runner, described second are passed sequentially through
Directive wheel, the second movable runner and the third directive wheel, are wound on the Scroll；The transmission control method packet
It includes：
Step 1 starts the unreeling shaft, and the first movable runner is moved down along first guide rod, described when detecting
When unreeling length and reaching the first length of unreeling shaft, stops unreeling；
Step 2 starts the Scroll, and the second movable runner is moved up along second guide rod, and described first is movable
Runner is moved up along first guide rod, when the winding length for detecting the Scroll reaches the second length, stops receiving
Volume；
It is repeated in the step 1 and step 2, completes the separation control for unreeling, winding.
9. according to the method described in claim 8, it is characterized in that, the method is by being located at the unreeling shaft outlet end
First sensor detects whether the length that the unreeling shaft unreels reaches first length；By being located at the Scroll entrance
Whether the length that the second sensor at end detects the Scroll winding reaches second length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381980.8A CN108928665A (en) | 2017-05-26 | 2017-05-26 | A kind of transmission device and transmission control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381980.8A CN108928665A (en) | 2017-05-26 | 2017-05-26 | A kind of transmission device and transmission control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108928665A true CN108928665A (en) | 2018-12-04 |
Family
ID=64450953
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710381980.8A Pending CN108928665A (en) | 2017-05-26 | 2017-05-26 | A kind of transmission device and transmission control method |
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| CN (1) | CN108928665A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794587A (en) * | 2019-03-11 | 2019-05-24 | 江苏振栋精密材料科技有限公司 | A kind of automatic band device of non-crystal belt making |
| CN110314931A (en) * | 2019-07-17 | 2019-10-11 | 姹や寒 | A kind of copper strips homo genizing annelaing rolling mill practice |
| CN110451318A (en) * | 2019-08-24 | 2019-11-15 | 林飞飞 | Plastics, textile labels paper production conveying tensile force adjust measuring and calculating mechanism |
| CN110451319A (en) * | 2019-08-24 | 2019-11-15 | 林飞飞 | Plastics, the production conveying of textile labels paper adjust measuring method with tensile force |
| CN112663019A (en) * | 2020-12-29 | 2021-04-16 | 尚越光电科技股份有限公司 | Synchronous control structure for reel-to-reel conveying of CIGS co-evaporation method |
| CN116081357A (en) * | 2023-02-07 | 2023-05-09 | 南京贝迪新材料科技股份有限公司 | Quantum dot film winding device with tension adjusting function |
-
2017
- 2017-05-26 CN CN201710381980.8A patent/CN108928665A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794587A (en) * | 2019-03-11 | 2019-05-24 | 江苏振栋精密材料科技有限公司 | A kind of automatic band device of non-crystal belt making |
| CN110314931A (en) * | 2019-07-17 | 2019-10-11 | 姹や寒 | A kind of copper strips homo genizing annelaing rolling mill practice |
| CN110451318A (en) * | 2019-08-24 | 2019-11-15 | 林飞飞 | Plastics, textile labels paper production conveying tensile force adjust measuring and calculating mechanism |
| CN110451319A (en) * | 2019-08-24 | 2019-11-15 | 林飞飞 | Plastics, the production conveying of textile labels paper adjust measuring method with tensile force |
| CN110451318B (en) * | 2019-08-24 | 2020-12-18 | 嘉兴市万荣电器股份有限公司 | Tension adjusting and measuring mechanism for production and conveying of plastic and textile label paper |
| CN110451319B (en) * | 2019-08-24 | 2020-12-22 | 嘉兴市万荣电器股份有限公司 | Tension adjusting and measuring method for production and conveying of plastic and textile label paper |
| CN112663019A (en) * | 2020-12-29 | 2021-04-16 | 尚越光电科技股份有限公司 | Synchronous control structure for reel-to-reel conveying of CIGS co-evaporation method |
| CN112663019B (en) * | 2020-12-29 | 2023-05-09 | 尚越光电科技股份有限公司 | Synchronous control structure for roll-to-roll conveying of CIGS co-evaporation method |
| CN116081357A (en) * | 2023-02-07 | 2023-05-09 | 南京贝迪新材料科技股份有限公司 | Quantum dot film winding device with tension adjusting function |
| CN116081357B (en) * | 2023-02-07 | 2023-09-26 | 南京贝迪新材料科技股份有限公司 | Quantum dot film winding device with tension adjusting function |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 102209, A129-1, Zhongxing Road, 10 Changping District science and Technology Park, Beijing Applicant after: DONGTAI HI-TECH EQUIPMENT TECHNOLOGY Co.,Ltd. Address before: 102209, A129-1, Zhongxing Road, 10 Changping District science and Technology Park, Beijing Applicant before: DONGTAI HI-TECH EQUIPMENT TECHNOLOGY (BEIJING) Co.,Ltd. Address after: 102209, A129-1, Zhongxing Road, 10 Changping District science and Technology Park, Beijing Applicant after: DONGTAI HI-TECH EQUIPMENT TECHNOLOGY (BEIJING) Co.,Ltd. Address before: 102209, A129-1, Zhongxing Road, 10 Changping District science and Technology Park, Beijing Applicant before: BEIJING CHUANGYU TECHNOLOGY Co.,Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181204 |