CN207493970U - A kind of coating machine of glue feeder and its composition - Google Patents
A kind of coating machine of glue feeder and its composition Download PDFInfo
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- CN207493970U CN207493970U CN201720837609.3U CN201720837609U CN207493970U CN 207493970 U CN207493970 U CN 207493970U CN 201720837609 U CN201720837609 U CN 201720837609U CN 207493970 U CN207493970 U CN 207493970U
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- glue
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- sebific duct
- roll shaft
- coating machine
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Abstract
The utility model provides the coating machine of a kind of glue feeder and its composition.A kind of glue feeder, confession glue bucket, gumming pump and filter including passing sequentially through pipeline connection；It is described to be equipped with blender for glue bucket is interior.A kind of coating machine includes coating unit and glue feeder described above；The coating unit includes the roll shaft of transmission membrane material and applies sebific duct；Described one end for applying sebific duct connects the glue feeder, and the other end is nozzle, and the nozzle is opposite with the outer surface of the roll shaft and gap there are pre-set dimension.The glue feeder of the utility model has all carried out agitation and filtration to the glue before pumping and the glue after pumping, so as to reduce the uneven caused gluing defect of glue, and coater unit solves the problems, such as that glue is long-term exposed and stands also by the mode that sealing nozzle is coated with.
Description
Technical field
The utility model is related to the coating applications of membrane material more particularly to the coating machines of a kind of glue feeder and its composition.
Background technology
Coating machine is mainly used for the surface coating process production of film, paper etc., this machine is that coiled base material is coated one
Glue, coating or ink of layer specific function etc., and wound after drying.Coating machine is mainly included for glue unit and coater unit.For
Glue unit is used to supply glue, coater unit glue coating in membrane material to coater unit.
For glue unit by being formed for glue bucket, pump, pipeline；Glue is stored for glue bucket, pump is connected to by pipeline；Pump is to glue
Play the role of power conveying, by pipeline by glue delivery to coater unit (coating head).Glue is coated with to substrate surfaces such as films
During glutinous agent, the base materials such as stripping pass through the gap between coating head and membrane material, glue precise quantitative under the rotation driving of gum wheel roller
Ground is attached to the surface of the base materials such as film, finally forms adhesive layer in substrate surface.
Due to that may contain different components in different glue, compatibility may result in there are certain difference
Crawling；Or the filler containing graininess (powder shaped) is needed in glue, possible for being stood for a long time in glue bucket
Sedimentation layering can be generated；Or the impurity or larger particles contained in glue can impact coating appearance, performance.So
Selection one glue is served filtering, mixing, anti-settling confession colloid system it is critically important.
The glue feeder with anti-settling disclosed in patent document CN202700750U and CN202700747U, is handle
Blender for glue return-flow system with linking together pre- anti-settling.Both the above glue feeder has the following problems：
First, poor universality：This technology has limitation effect to slit type coating head, because slit type coating head is tied for sealing
Structure can not design reflux.
2nd, the glue after pumping is acted on without anti-settling：The anti-settling that two documents propose, is to pass through confession before gumming pump
Stirring prevents from settling in glue bucket, and for the glue that is easily separated after gumming pump, there is no anti-settling measures.
3rd, the micro-variations of glue are had ignored：It prevents from settling and avoiding crawling, Ci Zhongtong by flowing back, stirring
Cross stirring only when macroscopically glue homogenize, but it is microcosmic on there are risks.
It 4th, can not monitoring of filtration process：The impurities accumulation degree of this filtering can not be monitored.
In view of this, it is special to propose the utility model.
Utility model content
The first of the utility model is designed to provide a kind of glue feeder, and the glue feeder is to the glue before pumping
Agitation and filtration is all carried out with the glue after pumping, so as to reduce the uneven caused gluing defect of glue.
The second of the utility model is designed to provide a kind of coating machine, and the coating machine leads under the action of pump power
The outer surface that glue is applied to membrane material by nozzle is crossed, solves the problems, such as that glue is exposed and long-term standing.
In order to achieve the goal above, the utility model provides following technical scheme：
A kind of glue feeder, confession glue bucket, gumming pump and filter including passing sequentially through pipeline connection；
It is described to be equipped with blender for glue bucket is interior.
The utility model sets filter in the downstream of gumming pump, eliminates the micro of the glue phase separation generation after pumping
Impurity improves its quality, and then reduces gluing defect.
In order to improve the technique effect of the utility model, above-mentioned coating machine can also be further improved, such as：
Preferably, the filter is equipped with pressure gauge.
Pressure gauge plays glue in filter pressure monitoring, and glue subsequently supplies plastic pipe by entering after filter,
Unsanctioned a small amount of impurity or particle are stayed in filter, and the permeability of filter can be influenced with accumulation increase, pressure gauge
Pressure can show increase therewith, the utility model by pressure gauge come the residual inside filter response, when pressure is to certain value
Replace filter bag or filter core.
Preferably, the gum outlet connection of the filter there are one static mixer or is connected with and multiple passes through pipeline
The static mixer being cascaded.
Static mixer carries out glue fine dispersion, and 1-2 μm of degree of scatter, i.e. this programme are from microcosmic to glue homogeneous
Change, also effectively prevent gumming pump to settling again in pipeline between coating head or the non-uniform problem of each component.Static mixing
The number of device is depending on actual demand.
Preferably, the bottom for glue bucket is cone.
Using angle of taper, the dead angle stirring for avoiding Square barrel feather edge is insufficient.
It is matched with conically shaped, the agitating paddle of angle of taper can be used in blender therein.
Consider plot ratio and stirring resistance, it is preferable that the cone angle of the cone is 30-45 °.
The utility model combines more than glue feeder and additionally provides a kind of coating machine, as follows；
A kind of coating machine includes coating unit and glue feeder described above；
The coating unit includes the roll shaft of transmission membrane material and applies sebific duct；
Described one end for applying sebific duct connects the glue feeder, and the other end is nozzle, and the nozzle is outer with the roll shaft
Surface is opposite and there are the gaps of pre-set dimension.
Compared with prior art, the coating unit of the utility model does not use the mode of scraper frictioning, does not use outer yet
The reservoir of dew, but be coated with using the mode that pressure strikes off.
Specifically, gumming pump is pumped glue by filter (if there is static mixer, also passing through static mixer)
To applying in sebific duct, then under the power of pump, the glue applied in sebific duct is projected from nozzle in the outer surface of membrane material to be coated.By institute
Nozzle is stated with the outer surface of the membrane material to be coated there are the gap of pre-set dimension, therefore, can be sprayed using nozzle on membrane material surface
Apply certain thickness glue.In the process, miniature vessel of the sebific duct as transfer is applied, is first leakproofness container, therefore keep away
A series of exposed unfavorable results brought of glue are exempted from；Secondly, it applies sebific duct and only stores a small amount of glue, and in the work of gumming pump
Under, it is always flow regime to apply glue in sebific duct, therefore also avoids glue and stand the problem of settling, being layered for a long time.
About glue-spread, in this coating machine, glue has a certain pressure in nozzle, extrusion coated to membrane material, during coating
Have certain lift, the gap between nozzle and membrane material is bigger (about 2 times) than the wet film that is coated with out, for high solids content glue or
The low thickness precision coating for having the glue of filler is advantageous.However coating machine shown in Fig. 1 and Fig. 2 in the prior art, scraper with
Gap, that is, wet-film thickness between roller, for there is the glue application existing defects of filler.
Glue-spread and thickness are controlled in order to further accurate, the seam between nozzle and membrane material can be determined according to the following formula
Gap：
Gap=k × (thickness of dry film/solid content), k be glue extrusion pressure and viscosity effect coefficient, the coefficient be through
Test value, such as certain a kind of glue, the thickness of dry film and glue after being condensed according to gap thickness, the glue of precognition
Solid content is calculated.Since k is empirical value, of a sort glue coefficient must be the same, therefore can come accordingly as needed
Thickness of dry film adjust gap.
In addition, the utility model eliminates the part of scraper, glue is carried out using the controllable pressure that gumming pump generates
Strike off, i.e., gumming pump has coating and strikes off dual function, thus also avoid the glue that conventional drag frictioning is also easy to produce splash or
Phenomena such as person's film is fallen.
For improving environment effect, above-mentioned coating machine can also be further improved, such as：
Preferably, the gumming pump is also associated with monitor, and the monitor adjusts the pump speed of the gumming pump.
The pump speed of the gumming pump is adjusted by monitor, on the one hand can adjust the applying amount of unit interval, the opposing party
Face can adjust pressure of the liquid to membrane material of jet blower outflow, to match the viscosity of glue and thickness.
Preferably, the nozzle for applying sebific duct is equipped with filter screen.
Filter screen can filter magazine or sediment in glue.
Preferably, the nozzle is detachably connected with the filter screen.
Filter screen can influence filter effect after being used for a long time, and can be reused after dismounting, thus improve instrument using effect
Rate.
Above dismountable function can by various constitution realizations, such as：
Preferably, the nozzle is equipped with groove with one of them in the filter screen, another is equipped with and the groove
Matched convex block.
Alternatively, nozzle and filter screen are arranged to the dismounting of drawing and pulling type.
Preferably, the painting sebific duct is also associated with cylinder, the cylinder be used to adjusting the nozzle for applying sebific duct with
Gap size between the outer surface of the roll shaft.
Cylinder can adjust the distance between nozzle and roll shaft, so as to adjust rubberization thickness according to actual demand.
Alternatively, it is also possible to set display, data are more intuitively showed into operator.
Preferably, the nozzle is taper, and the narrow cylinder end of the nozzle is opposite with the outer surface of the roll shaft.
On the one hand the nozzle of taper can reduce dead angle, on the other hand, can improve glue by reducing cross-sectional area
Spouting velocity improves flow velocity under the premise of energy consumption is not added with.
According to conventional glue type, it is preferable that the cone angle of the nozzle is 45-60 °.
Preferably, the nozzle is located at the left or right side of the roll shaft.
When nozzle is located at the top of roll shaft, gravity all adversely affects the injection of glue and depositional phenomenon.Work as spray
It, can be due to the counteracting loss part pumping kinetic energy of gravity when mouth is located at the lower section of roll shaft.Therefore, in order to avoid problem above,
The nozzle is preferably placed at the left or right side of the roll shaft.
Coating process provided by the utility model is identical with the principle of above-mentioned coating machine, includes the following steps：
While roll shaft is constantly driven membrane material, glue is pumped to and applies in sebific duct by gumming pump, and by the painting sebific duct
Nozzle is sprayed in the outer surface of membrane material to be coated；And there are the seams of pre-set dimension for the outer surface of the nozzle and the membrane material to be coated
Gap.
To sum up, compared with prior art, the utility model has reached following technique effect：
(1) realize that dispersion and anti-settling are handled to glue from source to end：Master operation include pumping before to glue into
Static mixing is carried out to glue from microcosmic after glue is filtered and filtered after row stirring and pumping.
(2) optimization wastes and stirs non-uniform problem to avoid glue for the shape of glue bucket.
(3) glue quality is improved：It is long-term exposed and long-term to solve glue using the mode that pump pressure and injecting type are coated with
The problem of standing, so as to avoid following defect：
First, the external world falls into impurity, causes coating defects；
2nd, solvent volatilizees, and glue is caused to make a variation, leads to coating defects；
3rd, glue long-time storage causes component to be layered, and leads to coating defects；
4th, have the glue long-time storage of filler particles object, it is possible to create reunion or sedimentation, lead to coating defects.
(4) it produces more environmentally friendly：Avoid the pollution problem brought using doctor blade.
(5) rubberization thickness is adjusted：Cylinder is set to adjust the gap between nozzle and membrane material, is applied so as to adjust as needed
Glue thickness.
(6) glue-spread is accurate controllable：Set controller control gumming pump supplies glue amount.
(7) filtering removal impurity：Filter screen is set to improve gluing quality at nozzle.
(8) glue waste is reduced：Nozzle is designed as taper, reduces the glue wasting phenomenon that dead angle is brought.
(7) interference of the gravity factor to gluing is reduced：The left or right side that nozzle is set to roll shaft is solved the problems, such as this.
(8) cleaning is more convenient：Filter screen is set as dismountable connection mode, it is easy to clean.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the schematic diagram of coating machine provided by the utility model；
Fig. 2 is the schematic diagram of static mixer provided by the utility model；
Fig. 3 is the schematic diagram of another static mixer provided by the utility model；
Reference numeral：
1- membrane materials；2- baffles；3- glue；
4- comma scrapers；5- scrapers；6- glued membranes；
7- applies deflector roll；8- anilox rolls；9- reservoirs；
10- roll shafts；11- gumming pumps；12- applies sebific duct.
Specific embodiment
The technical solution of the utility model is clearly and completely retouched below in conjunction with the drawings and specific embodiments
It states, it will be appreciated by those skilled in the art that following described embodiment is the utility model part of the embodiment, without
It is whole embodiments, is merely to illustrate the utility model, and is not construed as limitation the scope of the utility model.Based on this practicality
Embodiment in novel, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, shall fall within the protection scope of the present invention.The person that is not specified actual conditions in embodiment, according to normal condition or manufacturer
It is recommended that condition carry out.Reagents or instruments used without specified manufacturer is the routine that can be obtained by commercially available purchase
Product.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
There are two aspects for the primary motivitation of the utility model：
On the one hand, glue feeder is improved：
Glue feeder includes the confession glue bucket, gumming pump and the filter that pass sequentially through pipeline connection；It is described to supply in glue bucket to be equipped with
Blender.
On this basis, following optimize is carried out again to glue feeder：
Preferably, the filter is equipped with pressure gauge.
Preferably, the gum outlet connection of the filter there are one static mixer or is connected with and multiple passes through pipeline
The static mixer being cascaded.
Preferably, the bottom for glue bucket is cone.
Preferably, the cone angle of the cone is 30-45 °.
On the other hand, the power mode of gluing is changed, that is, has changed the coated portion in coating machine, specially：
Coater unit, including transmitting the roll shaft of membrane material and applying sebific duct；
Described one end for applying sebific duct is connected with the glue feeder, and the other end is nozzle, the nozzle and the roll shaft
Outer surface is opposite and there are the gaps of pre-set dimension.
Gap is calculated according to equation below：
Gap=k × (thickness of dry film/solid content), k be glue extrusion pressure and viscosity effect coefficient, the coefficient be through
Test value, such as certain a kind of glue, the thickness of dry film and glue after being condensed according to gap thickness, the glue of precognition
Solid content is calculated.Since k is empirical value, of a sort glue coefficient must be the same, therefore can come accordingly as needed
Thickness of dry film adjust gap.
On this basis, coater unit is improved in the following areas：
Preferably, the gumming pump is also associated with monitor, and the monitor adjusts the pump speed of the gumming pump.
Preferably, the nozzle for applying sebific duct is equipped with filter screen.
Preferably, the nozzle is detachably connected with the filter screen.
Preferably, the nozzle is equipped with groove with one of them in the filter screen, another is equipped with and the groove
Matched convex block.
Preferably, the painting sebific duct is also associated with cylinder, the cylinder be used to adjusting the nozzle for applying sebific duct with
Gap size between the outer surface of the roll shaft.
Preferably, the nozzle is taper, and the nozzle is arranged on the narrow cylinder end for applying sebific duct.
Preferably, the cone angle of the nozzle is 45-60 °.
Preferably, the nozzle is located at the left or right side of the roll shaft.
Scheme based on more than objective and optimization, the utility model provide following embodiment.
Fig. 1 is one embodiment of the utility model, which includes glue feeder and coater unit.
Glue feeder includes the confession glue bucket 1, gumming pump 3 and the filter 4 that pass sequentially through pipeline connection.
Described to be equipped with agitating paddle 2 for glue bucket is interior, the bottom for glue bucket 1 is cone, and the cone angle of cone (also may be used for 45 °
It is designed to other angles as needed).
The filter be equipped with pressure gauge 5, the filter 4 gum outlet connection there are two by placed in series together
Static mixer, first static mixer 6 is close to filter 4, and second static mixer 7 is close to coater unit.More than
Multiple Type, such as Fig. 2 and model shown in Fig. 3 can be used in two static mixers.
Coater unit includes the roll shaft 9 of transmission membrane material and applies sebific duct 8.
Described one end for applying sebific duct 8 connects second static mixer 7 by pipeline, and the other end is nozzle, described
Nozzle is opposite with the outer surface of the roll shaft and gap there are pre-set dimension.A small amount of glue can be stored in the painting sebific duct.
The nozzle is taper, and the narrow cylinder end of the nozzle is opposite with the outer surface of the roll shaft 9, the nozzle
Cone angle is close to 60 °.
The nozzle is located at the left side of the roll shaft 9.
The operation principle of the embodiment is：
A large amount of glue are stored in glue bucket 1, glue, which is stirred, wherein prevents from settling or be layered, and then gumming pump 3 will
Glue is pumped to filter 4, and impurity is removed in filter 4, glue is made homogeneously to change by two static mixers again later, most
Enter gluing pipe 8 afterwards, the glue applied in sebific duct 8 is projected from nozzle in the outer surface of membrane material to be coated.By the nozzle and institute
Gap of the outer surface there are pre-set dimension of membrane material to be coated is stated, it therefore, can be in membrane material surface spraying certain thickness using nozzle
Glue.
The embodiment can reach following effect：
(1) glue quality is improved：
On the one hand, then in glue feeder, by stirring, filtering, static mixing three step process makes glue be uniformly dispersed, and goes
Except granule foreign therein；
On the other hand, miniature vessel of the sebific duct as transfer is applied, is first leakproofness container, therefore it is exposed to avoid glue
A series of unfavorable results brought；Secondly, it applies sebific duct and only stores a small amount of glue, and under the action of gumming pump, apply sebific duct
Middle glue is always flow regime, therefore also avoids glue and stand the problem of settling, being layered for a long time, passes through above two aspects
Improve final glue quality.
(2) it produces more environmentally friendly：
Avoid the pollution problem brought using doctor blade.
(3) glue waste is reduced：
Nozzle is designed as taper, reduces the glue wasting phenomenon that dead angle is brought.
(4) interference of the gravity factor to gluing is reduced：
Nozzle is set on the left of roll shaft and solves the problems, such as this.It should be noted that nozzle is set to a left side for roll shaft
Side can not avoid interfering completely, but relatively reduce annoyance level.
Certainly, nozzle may also set up in the right side of roll shaft.
In addition, the cone angle of nozzle can be adjusted as needed in the present embodiment, preferred adjustable range is 45-60 °.
Another embodiment of the utility model is to be increased on the basis of above-described embodiment with lower structure：
It is gumming pump first, gumming pump is also associated with monitor, and the monitor adjusts the pump speed of the gumming pump.
Secondly applying sebific duct, the nozzle for applying sebific duct is equipped with filter screen；The nozzle and the filter screen are removable
Unload connection：The nozzle is equipped with groove with one of them in the filter screen, another is equipped with convex with the matching grooves
Block.
The painting sebific duct is also associated with cylinder, and the cylinder is used to adjust the nozzle for applying sebific duct and the roll shaft
Outer surface between gap size.
Effect caused by the coating machine of the present embodiment has：
(1) rubberization thickness is adjusted：
Cylinder is set to adjust the gap between nozzle and membrane material, so as to adjust rubberization thickness as needed.
Gap can be used the following formula and calculate and obtain：
Gap=k × (thickness of dry film/solid content), k be glue extrusion pressure and viscosity effect coefficient, the coefficient be through
Test value, such as certain a kind of glue, the thickness of dry film and glue after being condensed according to gap thickness, the glue of precognition
Solid content is calculated.Since k is empirical value, of a sort glue coefficient must be the same, therefore can come accordingly as needed
Thickness of dry film adjust gap.
(2) glue-spread is accurate controllable：Set controller control gumming pump supplies glue amount.
(5) filtering removal impurity：Filter screen is set to improve gluing quality at nozzle.
(4) cleaning is more convenient：Filter screen is set as dismountable connection mode, it is easy to clean.
In addition to above structure optimizes, the inner wall for applying sebific duct can also be set as curved, to avoid dead angle completely.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (9)
1. a kind of glue feeder, which is characterized in that confession glue bucket, gumming pump and filter including passing sequentially through pipeline connection；
It is described to be equipped with blender for glue bucket is interior；
The gum outlet connection of the filter there are one static mixer or be connected with it is multiple by placed in series together
Static mixer.
2. glue feeder according to claim 1, which is characterized in that the filter is equipped with pressure gauge.
3. glue feeder according to claim 1, which is characterized in that the bottom for glue bucket is cone.
4. glue feeder according to claim 3, which is characterized in that the cone angle of the cone is 30-45 °.
5. a kind of coating machine, which is characterized in that including coater unit and claim 1-4 any one of them glue feeders；
The coater unit includes the roll shaft of transmission membrane material and applies sebific duct；Described one end for applying sebific duct connects the glue feeder,
The other end is nozzle, and the nozzle is opposite with the outer surface of the roll shaft and gap there are pre-set dimension.
6. coating machine according to claim 5, which is characterized in that the painting sebific duct is also associated with cylinder, and the cylinder is used
Gap size between the adjusting nozzle for applying sebific duct and the outer surface of the roll shaft.
7. coating machine according to claim 5, which is characterized in that the nozzle is taper, and the narrow cylinder of the nozzle
End is opposite with the outer surface of the roll shaft.
8. coating machine according to claim 7, which is characterized in that the cone angle of the nozzle is 45-60 °.
9. coating machine according to claim 5, which is characterized in that the nozzle is located at the left or right side of the roll shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837609.3U CN207493970U (en) | 2017-07-11 | 2017-07-11 | A kind of coating machine of glue feeder and its composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837609.3U CN207493970U (en) | 2017-07-11 | 2017-07-11 | A kind of coating machine of glue feeder and its composition |
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| Publication Number | Publication Date |
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| CN207493970U true CN207493970U (en) | 2018-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138358A (en) * | 2017-07-11 | 2017-09-08 | 苏州城邦达力材料科技有限公司 | A kind of coating machine of glue feeder and its composition |
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- 2017-07-11 CN CN201720837609.3U patent/CN207493970U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138358A (en) * | 2017-07-11 | 2017-09-08 | 苏州城邦达力材料科技有限公司 | A kind of coating machine of glue feeder and its composition |
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Address after: 215300 Dongping Road 399, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Suzhou Chengbang Dayi Material Technology Co., Ltd. Address before: 215300 Dongping Road 399, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Suzhou City-State Dali Material Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |