CN107128810A - A kind of vertical paint roller quick change method of galvanizing unit - Google Patents
A kind of vertical paint roller quick change method of galvanizing unit Download PDFInfo
- Publication number
- CN107128810A CN107128810A CN201710451902.0A CN201710451902A CN107128810A CN 107128810 A CN107128810 A CN 107128810A CN 201710451902 A CN201710451902 A CN 201710451902A CN 107128810 A CN107128810 A CN 107128810A
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- Prior art keywords
- paint roller
- vertical paint
- lifting device
- type lifting
- balance type
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of vertical paint roller quick change method of galvanizing unit, the method comprising the steps of：Release the connection status of the old vertical paint roller equipment related to production district；Hoisting platform is transported to after the old vertical paint roller is transported on the rapid transport device of safety zone from the production district with quick handling apparatus using balance type lifting device to hang out；New vertical paint roller is transported to safety zone from the hoisting platform using transporter and is transported to the production district with balance type lifting device and quick handling apparatus again；By the new vertical paint roller equipment connection related to the production district.The above method, paint roller is transported through using transporter, balance type lifting device and quick handling apparatus, avoid the carrying of pure manpower, not only reduce the labor intensity of operator, and transhipment duration is greatly lowered, or so 3 hours needed by more transducer set paint roller originally taper to 1 hour or so.
Description
Technical field
The present invention relates to the vertical painting roller quick replacement side of galvanizing unit technical field, more particularly to a kind of galvanizing unit
Method.
Background technology
Galvanizing unit is the important production line of cold rolling mill, because galvanized sheet can soon corrosion, life in malaria
Into the white rust based on basic zinc carbonate, this had both influenceed the attractive in appearance of zinc-plated plate surface, was made troubles again to later use.Cause
This, in order to prevent galvanized sheet from getting rusty and extending in storage and transport process its service life, it is necessary to which application processing makes after without prejudice to
The Anticorrosion of heat zinc coating plate is solved on the premise of.Used to strengthen in the antiseptic power of zinc-plated plate surface zinc layers, production
The method of Passivation Treatment strengthens the antiseptic power of zinc-plated plate surface zinc layers and increases that product is attractive in appearance, and the mode of Passivation Treatment has spray
Two kinds of formula and roller coat formula, wherein roll coating model are to utilize coating rubber roll, expect that roller dips passivating dip and is coated on plating by drawing
The surface of zine plate, is then directly dried without rinsing.The benefit of this mode is not produce waste liquid substantially, but changes paint roller
Cycle is relatively short, in general, and vertical painting roller group need to change 2~3 times/set daily.Therefore the replacing duration of vertical paint roller is straight
Connect the progress for having influence on galvanizing unit production line.
Existing vertical paint roller replacing options, generally, release vertical paint roller and the connection status of production district relevant device；
The lift of vertical paint roller is transported to by safe storage area by manpower, new vertical paint roller manpower lift is transported to production district, installation and debugging are carried out,
The process generally requires 6 people, not only labor intensity is big mainly by manpower；And time-consuming, a set of vertical painting of general replacement
A length of 3 hours or so when roller needs, the manufacturing schedule of galvanizing unit production line has been had a strong impact on.
In summary, when how to solve vertical paint roller replacing, the problem of labor intensity is greatly and time-consuming, it has also become this area
Technical staff's technical barrier urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of vertical paint roller quick change method of galvanizing unit, to reduce the work of workman
Intensity, while shortening the replacing duration of paint roller.
To achieve these goals, the invention provides a kind of vertical paint roller quick change method of galvanizing unit, the party
Method includes step：
Step 100：Release the connection status of the old vertical paint roller equipment related to production district；
Step 200：The old vertical paint roller is turned from the production district using balance type lifting device and quick handling apparatus
It is transported on the rapid transport device of place of safety；
Step 300：The old vertical paint roller is transported to after hoisting platform using rapid transport device and hung out with row；
Step 400：New vertical paint roller is transported to place of safety from the hoisting platform using the rapid transport device；
Step 500：Using the balance type lifting device and the quick handling apparatus by the new vertical paint roller from described
Place of safety is transported to production district；
Step 600：By the new vertical paint roller equipment connection related to the production district.
Preferably, the step 100, including step：
Step 110：Pair floating axle being connected with the old vertical paint roller is parked in the top of support meanss；
Step 120：The shaft coupling that the old vertical paint roller is connected with the floating axle disconnects；The floating axle is placed
In the support meanss；
Step 130：The upper lid of the bearing block of the old vertical paint roller is opened.
Preferably, the step 200, including step：
Step 210：The two axial ends of the old vertical paint roller are connected using steel wire rope with the balance type lifting device；
Step 220：Start the balance type lifting device, the balance type lifting device is lifted the old vertical paint roller；
Step 230：Control the balance type lifting device with the quick handling apparatus from the production district to the safety
Move in area.
Preferably, the step 210, be specially：
Step 211：The quick handling apparatus is connected with the equalizer bar of the balance type lifting device, and the equalizer bar
Length it is corresponding with the length of the old vertical paint roller；
Step 212：The two ends of the equalizer bar are connected by the steel wire rope with the two ends of the old vertical paint roller, and
The steel wire rope is in the state of near vertical.
Preferably, the step 300, including step：
Step 310：The two axial ends of the new vertical paint roller are connected using the steel wire rope with the balance type lifting device；
Step 320：Start the quick handling apparatus, the balance type lifting device is lifted the old vertical paint roller；
Step 330：Control the balance type lifting device with the quick handling apparatus from the place of safety to the production
Move in area.
Preferably, the step 310, be specially：
Step 311：The quick handling apparatus is connected with the equalizer bar of the balance type lifting device, and the equalizer bar
Length it is corresponding with the length of the new vertical paint roller；
Step 312：The two ends of the equalizer bar are connected by the steel wire rope with the two ends of the new vertical paint roller, and
The steel wire rope is in the state of near vertical.
Preferably, the rapid transport device described in the step 200 and the step 300 includes transport carriage and setting
Track under the transport carriage；
The quick handling apparatus includes the guide rail being arranged in production district upper beam and can slided along the guide rail
Slide trolley, and the guide rail extends to the place of safety from the production district；
The balance type lifting device includes balance corresponding with the length of the old vertical paint roller or the new vertical paint roller
The lifting eye being connected with the quick handling apparatus is provided with above beam, the equalizer bar；
Concrete operation step is：
By the two ends of the equalizer bar respectively with the two ends of the old vertical paint roller to be lifted or the new vertical paint roller
Two ends connection；
By the way that the quick handling apparatus and the balance type lifting device are by the old vertical paint roller or described new vertical apply
Roller is lifted；
Start the quick handling apparatus, the old vertical paint roller is moved to the place of safety from the production district or incited somebody to action
The new vertical paint roller is moved to the production district from the place of safety.
Content is introduced compared to background technology, the vertical paint roller replacing options of above-mentioned galvanizing unit are releasing old vertical painting
After the connection status of the roller equipment related to production district, using balance type lifting device and quick handling apparatus by old vertical paint roller from
Production district is transported on the rapid transport device of place of safety, recycles balance type lifting device will new vertical painting with quick handling apparatus
Roller is transported to production district from place of safety, finally connects the new vertical paint roller equipment related to production district.Whole process utilizes flat
Weighing apparatus boom hoisting and quick handling apparatus and rapid transport device be transported through to new and old paint roller, it is to avoid removing for pure manpower
Fortune, not only reduces the labor intensity of operator, and replacing duration is greatly lowered, and is needed by more transducer set paint roller originally
Or so 3 hours wanted taper to 1 hour or so.
Brief description of the drawings
Fig. 1 is the principle flow chart of the vertical paint roller replacing options of galvanizing unit provided in an embodiment of the present invention；
Fig. 2 is the horizontal layout schematic diagram of replacing options provided in an embodiment of the present invention；
Fig. 3 for Fig. 2 A to structural representation；
Fig. 4 is the structure of balance type lifting device provided in an embodiment of the present invention and uses schematic diagram.
In figure 2 above -4,
Crossbeam 1, guide rail 2, slide trolley 3, production district 4, safe storage area 5, lowering or hoisting gear 6, paint roller 7, rise hanging hook 8,
Strip 9, bascule 10, connection position 11, hanger 12, reinforcing plate 13, steel wire rope 14.
Embodiment
The core of the present invention is to provide a kind of vertical paint roller replacing options of galvanizing unit, strong with the work for reducing workman
Degree, while shortening the replacing construction of paint roller.
In order that those skilled in the art more fully understands the technical scheme that provides of the present invention, below in conjunction with accompanying drawing and
The present invention is described in further detail for specific embodiment.
As shown in figure 1, the vertical paint roller quick change method of galvanizing unit provided in an embodiment of the present invention, this method includes
Step：
Step 100：Release the connection status of the old vertical paint roller equipment related to production district；
Step 200：Old vertical paint roller is transported to safety from production district using balance type lifting device and quick handling apparatus
On the rapid transport device in area；
Step 300：Old vertical paint roller is transported to after hoisting platform using rapid transport device and hung out with row；
Step 400：New vertical paint roller is transported to place of safety from hoisting platform using rapid transport device；
Step 500：New vertical paint roller is transported to production from place of safety using balance type lifting device and quick handling apparatus
Area；
Step 600：By the equipment connection related to production district of new vertical paint roller.
Explanation is needed exist for, what those skilled in the art will readily appreciate that is above-mentioned related to production district set
It is standby, generally comprise the floating axle connected by the shaft end of shaft coupling and paint roller and the bearing block of paint roller.In addition it should be noted that
Production district refers to the working region of vertical paint roller, namely to the station of strip roller coat glue-line, place of safety refers to that on-site is specially used
Station in the non-active area of storage paint roller.It is further to note that above-mentioned quick handling apparatus has lifting and translated
Function, balance type lifting device is in order to more facilitate the lifting of vertical paint roller, it is to avoid scratch the coating of vertical paint roller.
Content is introduced compared to background technology, the vertical paint roller replacing options of above-mentioned galvanizing unit are releasing old vertical painting
After the connection status of the roller equipment related to production district, using balance type lifting device and quick handling apparatus by old vertical paint roller from
Production district is transported on the rapid transport device of place of safety, recycles balance type lifting device will new vertical painting with quick handling apparatus
Roller is transported to production district from place of safety, finally connects the new vertical paint roller equipment related to production district.Whole process utilizes flat
Weighing apparatus boom hoisting and quick handling apparatus and rapid transport device be transported through to new and old paint roller, it is to avoid removing for pure manpower
Fortune, not only reduces the labor intensity of operator, and replacing duration is greatly lowered, and is needed by more transducer set paint roller originally
Or so 3 hours wanted taper to 1 hour or so.
In some specific embodiments, above-mentioned steps 100, including as follows step by step：
Step 110：Pair floating axle being connected with old vertical paint roller is parked in the top of support meanss；
Step 120：The shaft coupling that old vertical paint roller is connected with floating axle disconnects；Floating axle is placed on support meanss
On；
Step 130：The upper lid of the bearing block of old vertical paint roller is opened.
Above by will be supported below the floating axle being connected with old vertical paint roller, the mode of support can use placement
Frame is supported, such as the cell body for placing the universal floating axle disconnected is provided with rack.In the disconnected of universal floating axle
, it is necessary to be parked in directly over above-mentioned rack or close on the position of top by vertical paint roller floating axle before opening, universal floating is disconnected
Axle is effectively avoided artificial with directly floating axle is placed in the cell body on rack behind the connection end of vertical paint roller
The potential safety hazard for injuring operator by a crashing object brought to ground is placed, while so that the placement of floating axle and installing more facilitates,
Further save replacing duration.
In further embodiment, above-mentioned steps 200, including as follows step by step：
Step 210：By corresponding end of the two axial ends of old vertical paint roller using steel wire rope and the equalizer bar of balance type lifting device
Connection；
Wherein step 210 can specifically be divided into as follows step by step：
Step 211：The equalizer bar of fast hoisting device and balance type lifting device is connected, and the length of equalizer bar is stood with old
The length of formula paint roller is corresponding；
Step 212：The two ends of equalizer bar are connected by steel wire rope with the two ends of old vertical paint roller, and steel wire rope is in closely
Vertical state.
As shown in figure 4, the balance type lifting device 10 is provided with connection position 11, balance type lifting device beam 1 close to both ends
Middle part be provided with for playing the hanger 12 that is connected of hanging hook 8 with the lowering or hoisting gear of quick handling apparatus, connection position 11 passes through
Steel wire rope 14 is connected with the corresponding end of paint roller 7 to be lifted.Need exist for explanation, balance type lifting device with it is to be lifted
The length of vertical paint roller is corresponding to refer to that balance type lifting device length is omited than vertical paint roller or the band glue-line barrel length of liquid-dipping roller
It is long, the generally each 50~100mm of length in both sides, primarily to realizing that steel wire rope and the end of connection position and roll body to be lifted are connected
When, steel wire rope can be generally in vertical direction, so as to avoid the roll surface with roll body to be lifted from being in contact.In addition to so that hanging
The processing of ear more facilitates, and the top of balance type lifting device 10 is provided with reinforcing plate 13, and hanger 12 is arranged in reinforcing plate 13
Portion.What certain those skilled in the art will readily appreciate that be in order that the overall gravitational equilibrium of balance type lifting device, plus
The strong optimal design method of plate should be symmetrical structure, and the symmetrical center line and the symmetrical centre of balance type lifting device of reinforcing plate
Line is overlapped.Due to connection position by steel wire rope be connected with lifting roll body end after, during lifting after the stretching of steel wire rope stress substantially
To be vertical, so that the problem of avoiding to roll body surface size or metal level ankle injury.
Step 220：Start balance type lifting device, balance type lifting device is lifted old vertical paint roller；
Step 230：Control balance type lifting device is moved with quick handling apparatus from production district to place of safety.
In further embodiment, similarly step 300, including as follows step by step：
Step 310：The two axial ends of new vertical paint roller are connected using steel wire rope with balance type lifting device；
Wherein step 310 is included as follows step by step again：
Step 311：The equalizer bar of quick handling apparatus and balance type lifting device is connected, and the length of equalizer bar is stood with new
The length of formula paint roller is corresponding；
Step 312：The two ends of equalizer bar are connected by steel wire rope with the two ends of new vertical paint roller, and steel wire rope is in closely
Vertical state.
Balance type lifting device is structurally and functionally identical with above-mentioned steps 211 and step 212 herein, no longer goes to live in the household of one's in-laws on getting married herein
State.
Step 320：Start quick handling apparatus, balance type lifting device is lifted old vertical paint roller；
Step 330：Control balance type lifting device is moved with quick handling apparatus from place of safety to production district.
In addition, as shown in Figures 2 and 3, the rapid transport device in step 200 and step 300 generally comprises transport carriage
With the track being arranged on below transport carriage；
Quick handling apparatus generally comprises the guide rail 2 being arranged in production district upper beam 1 and can slided along guide rail 2
Slide trolley 3, and guide rail 2 extends to place of safety 5 from production district 4；Explanation is needed exist for, those skilled in the art should
, it is understood that guide rail should have a certain distance between strip 9, to avoid paint roller from being sent out in translation motion with strip
Raw collision；
And balance type lifting device generally comprises equalizer bar corresponding with the length of old vertical paint roller or new vertical paint roller, balance
The lifting eye being connected with quick handling apparatus is provided with above beam；
Concrete operation step is：
By the two ends of the equalizer bar of the balance type lifting device 6 of the lower section of quick handling apparatus respectively with it is to be lifted old vertical
The two ends of paint roller (paint roller 7 i.e. shown in Fig. 2) or the two ends connection of new vertical paint roller；
The jacking system of quick handling apparatus drives balance type lifting device 6 to lift old vertical paint roller or new vertical paint roller；
Start the translation system of quick handling apparatus, that is, start slide trolley 3, old vertical paint roller is moved from production district 4
Production district 4 is moved to place of safety 5 or by new vertical paint roller from place of safety 5.
Of course, it should be understood that the translation system and jacking system of above-mentioned quick handling apparatus have the structure of integral type concurrently
Only the present invention illustrates for one kind of quick handling apparatus, can also be that translation system and jacking system are adopted as split type
Structure.Such as translation system includes basal plane guide rail and basal plane transport carriage, and basal plane guide rail extends to peace from the basal plane of production district
The basal plane of whole district's correspondence station, basal plane transport carriage includes the vehicle frame corresponding with vertical paint roller size to be transported, set
Wheel shaft and the wheel for being arranged on wheel shaft both sides below vehicle frame, wheel can be rolled along basal plane guide rail；The vertical paint roller of handling
When, vertical paint roller to be transported is placed on the basal plane transport carriage of translation system first with jacking system, basal plane is driven
Transport carriage moves to destination locations along basal plane guide rail.
Concrete operation step is：
The two ends of equalizer bar are connected with the two ends of old vertical paint roller to be lifted or the two ends of new vertical paint roller respectively；
Old vertical paint roller or new vertical paint roller are lifted by quick handling apparatus and balance type lifting device；
Start quick handling apparatus, old vertical paint roller is moved to place of safety from production district or new vertical paint roller is incited somebody to action from safety
Area is moved to production district.
The vertical paint roller replacing options of galvanizing unit provided by the present invention are described in detail above.Need explanation
, each embodiment in this specification described by the way of progressive, and what each embodiment was stressed is and it
Between the difference of his embodiment, each embodiment identical similar part mutually referring to.
It should also be noted that, herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid nonexcludability is included, so that article or equipment including a series of key elements not only include those key elements, but also
Including other key elements being not expressly set out, or also include for this article or the intrinsic key element of equipment.Do not having
In the case of more limitations, the key element limited by sentence "including a ...", it is not excluded that including the article of above-mentioned key element
Or also there is other identical element in equipment.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
The bright method and its core concept for being only intended to help to understand the present invention.It should be pointed out that for the ordinary skill of the art
For personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improvement
Also fallen into modification in the protection domain of the claims in the present invention.
Claims (7)
1. the vertical paint roller quick change method of a kind of galvanizing unit, it is characterised in that the method comprising the steps of：
Step 100：Release the connection status of the old vertical paint roller equipment related to production district；
Step 200：The old vertical paint roller is transported to from the production district with quick handling apparatus using balance type lifting device
On the rapid transport device of place of safety；
Step 300：The old vertical paint roller is transported to after hoisting platform using rapid transport device and hung out with row；
Step 400：New vertical paint roller is transported to place of safety from the hoisting platform using the rapid transport device；
Step 500：Using the balance type lifting device and the quick handling apparatus will the newly vertical paint roller from the safety
Area is transported to production district；
Step 600：By the new vertical paint roller equipment connection related to the production district.
2. the method as described in claim 1, it is characterised in that the step 100, including step：
Step 110：Pair floating axle being connected with the old vertical paint roller is parked in the top of support meanss；
Step 120：The shaft coupling that the old vertical paint roller is connected with the floating axle disconnects；The floating axle is placed on institute
State in support meanss；
Step 130：The upper lid of the bearing block of the old vertical paint roller is opened.
3. the method as described in claim 1, it is characterised in that the step 200, including step：
Step 210：The two axial ends of the old vertical paint roller are connected using steel wire rope with the balance type lifting device；
Step 220：Start the balance type lifting device, the balance type lifting device is lifted the old vertical paint roller；
Step 230：The balance type lifting device is controlled to be transported with the quick handling apparatus from the production district to the place of safety
It is dynamic.
4. method as claimed in claim 3, it is characterised in that the step 210, is specially：
Step 211：The fast hoisting device is connected with the equalizer bar of the balance type lifting device, and the length of the equalizer bar
Degree is corresponding with the length of the old vertical paint roller；
Step 212：The two ends of the equalizer bar are connected by the steel wire rope with the two ends of the old vertical paint roller, and it is described
Steel wire rope is in the state of near vertical.
5. the method as described in claim 1, it is characterised in that the step 300, including step：
Step 310：The two axial ends of the new vertical paint roller are connected using the steel wire rope with the balance type lifting device；
Step 320：Start the quick handling apparatus, the balance type lifting device is lifted the old vertical paint roller；
Step 330：The balance type lifting device is controlled to be transported with the quick handling apparatus from the place of safety to the production district
It is dynamic.
6. method as claimed in claim 5, it is characterised in that the step 310, is specially：
Step 311：The quick handling apparatus is connected with the equalizer bar of the balance type lifting device, and the length of the equalizer bar
Spend corresponding with the length of the new vertical paint roller；
Step 312：The two ends of the equalizer bar are connected by the steel wire rope with the two ends of the new vertical paint roller, and it is described
Steel wire rope is in the state of near vertical.
7. the method as described in claim 1, it is characterised in that quick turn described in the step 200 and the step 300
Shipping unit includes transport carriage and the track being arranged under the transport carriage；
The fast hoisting device includes the guide rail being arranged in production district upper beam and the cunning that can be slided along the guide rail
Row dolly, and the guide rail extends to the place of safety from the production district；
The balance type lifting device includes equalizer bar corresponding with the length of the old vertical paint roller or the new vertical paint roller, institute
State the lifting eye for being provided with and being connected with the quick handling apparatus above equalizer bar；
Concrete operation step is：
By the two ends of the equalizer bar respectively with the two ends of the old vertical paint roller to be lifted or the new vertical paint roller two
End connection；
The old vertical paint roller or the new vertical paint roller are carried by the quick handling apparatus and the balance type lifting device
Rise；
Start the quick handling apparatus, the old vertical paint roller is moved to the place of safety or by described in from the production district
New vertical paint roller is moved to the production district from the place of safety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710451902.0A CN107128810A (en) | 2017-06-15 | 2017-06-15 | A kind of vertical paint roller quick change method of galvanizing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710451902.0A CN107128810A (en) | 2017-06-15 | 2017-06-15 | A kind of vertical paint roller quick change method of galvanizing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107128810A true CN107128810A (en) | 2017-09-05 |
Family
ID=59734689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710451902.0A Pending CN107128810A (en) | 2017-06-15 | 2017-06-15 | A kind of vertical paint roller quick change method of galvanizing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107128810A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109713600A (en) * | 2019-01-18 | 2019-05-03 | 中铁八局集团电务工程有限公司 | Electric power supply system for subway Rectification Power Factor replaces construction method |
| CN110013942A (en) * | 2019-04-30 | 2019-07-16 | 首钢京唐钢铁联合有限责任公司 | Method for replacing working roll of roll coater |
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| CN109713600A (en) * | 2019-01-18 | 2019-05-03 | 中铁八局集团电务工程有限公司 | Electric power supply system for subway Rectification Power Factor replaces construction method |
| CN110013942A (en) * | 2019-04-30 | 2019-07-16 | 首钢京唐钢铁联合有限责任公司 | Method for replacing working roll of roll coater |
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Application publication date: 20170905 |
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| RJ01 | Rejection of invention patent application after publication |