CN108187978B - Centralized feeding system for paint - Google Patents
Centralized feeding system for paint Download PDFInfo
- Publication number
- CN108187978B CN108187978B CN201810077698.5A CN201810077698A CN108187978B CN 108187978 B CN108187978 B CN 108187978B CN 201810077698 A CN201810077698 A CN 201810077698A CN 108187978 B CN108187978 B CN 108187978B
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- Prior art keywords
- paint
- coating
- tank
- feeding
- storage tank
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- 239000003973 paint Substances 0.000 title claims abstract description 173
- 238000000576 coating method Methods 0.000 claims abstract description 95
- 239000011248 coating agent Substances 0.000 claims abstract description 93
- 238000003860 storage Methods 0.000 claims abstract description 49
- 238000007599 discharging Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 19
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 7
- 230000007306 turnover Effects 0.000 claims 2
- 239000013307 optical fiber Substances 0.000 abstract description 11
- 238000012681 fiber drawing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000007380 fibre production Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
-
- 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
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1042—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
- C03C25/14—Spraying
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Coating Apparatus (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
Abstract
The invention discloses a centralized paint feeding system which comprises a paint storage tank and a plurality of paint tank groups, wherein each paint tank group is provided with at least two paint tanks, and all the paint tanks are connected with the paint storage tank through a feed pipe with a pump; a coating die holder is correspondingly provided with a coating tank group, and all coating tanks in each coating tank group are connected with the corresponding coating die holder through discharge pipes; one of the coating tanks is selected by a feeding switching unit to feed into a corresponding coating die holder; each feeding pipe is provided with a feeding valve, each discharging pipe is provided with a discharging valve, and each feeding valve and each discharging valve are connected with a central control unit. According to the coating centralized feeding system, the ton-level coating storage tank is purchased directly, and is used for intensively feeding to a plurality of coating die holders of a plurality of optical fiber drawing production lines through the pipeline with the pump, so that the centralized feeding of the optical fiber drawing coating is realized.
Description
Technical Field
The invention relates to a coating feeding system, in particular to a low-pressure off-line bubble-free coating centralized feeding system.
Background
Under the background of the national advanced fifth generation mobile communication and ultra-wideband key technology research, the optical fiber industry meets the national strategic development opportunity, and various large optical fiber production companies seek a method for reducing the cost in various aspects while improving the optical fiber production quality.
The coating process is an important part of the optical fiber drawing production, and the supply of coating is critical to the continuous operation of the coating process. At present, a more conventional paint supply method is to purchase a small barrel of paint, and the continuous production is ensured by adopting a manual replacement mode. This approach suffers from several drawbacks: (1) The purchase price of the small barrel paint is higher than that of the large barrel paint, which increases the cost for enterprises with paint requirements of hundreds of tons or even thousands of tons each year; (2) Because the weight of the paint in the small barrel is less, the paint is replaced frequently, more labor is needed by adopting a mode of manually replacing the paint, and the labor cost is high.
Based on the current situation, the research on concentrated feeding of the coating becomes a hot spot in recent years, and the patent application No. 201410039702.0, namely a continuous concentrated feeding device and a feeding method of the coating, describes a device for feeding the coating to a coating buffer tank on line and a feeding method of the coating, and also describes an automatic control method of the coating feeding pressure. Because the online coating is supplied to the buffer tank, the pipeline pressure control requirement is high, the control system is relatively complex, and the system stability is poor. The patent application No. 201510614332.3 describes a centralized feeding system for optical fiber production coating, which is similar to an on-line feeding method, and a pressure pump is added on each coating tank for controlling pressure, so that the problems of unstable pressure control and complex structure exist.
Disclosure of Invention
The invention aims to solve the technical problem of providing a centralized feeding system for coating, which replaces the traditional manual feeding with a full-automatic feeding mode, reduces the feeding cost and improves the feeding efficiency; on the other hand, an off-line feeding mode is adopted, so that an electric control system is simplified, and the reliability and stability of centralized feeding are improved.
In order to solve the technical problems, the invention provides a concentrated paint feeding system, which is characterized in that: the device comprises a paint storage tank and a plurality of paint tank groups, wherein each paint tank group is provided with at least two paint tanks, and all the paint tanks are connected with the paint storage tank through a feed pipe with a pump; a coating die holder is correspondingly provided with a coating tank group, and all coating tanks in each coating tank group are connected with the corresponding coating die holder through discharge pipes; one of the coating tanks is selected by a feeding switching unit to feed into a corresponding coating die holder; each feeding pipe is provided with a feeding valve, each discharging pipe is provided with a discharging valve, and each feeding valve and each discharging valve are connected with a central control unit.
In a preferred embodiment of the present invention, the paint storage tank is further disposed obliquely downward with respect to a horizontal plane, a discharge port is disposed at a bottom of a side wall of the paint storage tank, and an angle of the paint storage tank obliquely downward with respect to the horizontal plane is calculated according to the following formula:
m is the mass of the least paint remaining in the paint reservoir;
d is the diameter of the discharge hole of the coating storage tank;
ρ is the density of the coating;
l is the tank bottom length of the paint storage tank;
alpha is the angle at which the paint reservoir is inclined downwardly relative to the horizontal.
In a preferred embodiment of the invention, the paint tank further comprises a heating assembly, wherein the heating assembly is used for heating the paint storage tank, the feed pipe, the discharge pipe and each paint tank respectively.
In a preferred embodiment of the invention, the feed pipe further comprises a discharge port arranged below the initial liquid level of the respective coating tank.
In a preferred embodiment of the invention, the feed inlets of the discharge pipes are all arranged below the initial liquid level of the respective paint tanks.
In a preferred embodiment of the invention, the method further comprises the step of standing at zero pressure in the paint tank.
In a preferred embodiment of the invention, the paint-discharging device further comprises a pipeline heating belt arranged outside the feeding pipe and the discharging pipe, and the paint in each pipeline is heated on line through the pipeline heating belt; and heat preservation cotton is coated outside the pipeline heating band.
In a preferred embodiment of the invention, the paint tank is further provided with a tank heating belt outside, and the paint in the paint tank is heated on line through the tank heating belt, so that the paint tank is arranged at a constant temperature.
In a preferred embodiment of the invention, the paint tank is further provided with a liquid level detector, and the liquid level detector is connected with the central control unit.
In a preferred embodiment of the present invention, the paint storage tank is further provided on a turning device, and the turning device adjusts the angle of the paint storage tank which is arranged obliquely downwards relative to the horizontal plane.
The paint feeding system provided by the invention has the advantages that the ton-level paint storage tank is directly purchased, and the paint is automatically fed into the coating die holder through the pipeline with the pump, so that the traditional manual feeding is replaced by the full-automatic feeding mode, the feeding cost is reduced, and the feeding efficiency is improved.
Secondly, according to the coating centralized feeding system, the directly purchased ton-level coating storage tank is used for intensively feeding the coating die holders of the optical fiber drawing production lines through the pipelines with the pumps, so that the centralized feeding of the optical fiber drawing coating is realized.
Thirdly, the placing mode of the paint storage tank is optimally designed, so that the residual paint in the paint storage tank is minimum, namely the wasted paint is minimum on the premise that bubbles on the liquid surface cannot be pumped into the paint tank.
Fourth, the off-line feeding mode that a plurality of coating tanks are used in a matched mode simplifies an electric control system and improves the reliability and stability of centralized feeding.
Drawings
FIG. 1 is a schematic illustration of the construction of a paint feed system in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic view of a coating material centralized feeding system in a preferred embodiment of the present invention;
fig. 3 is a schematic view showing the installation structure of the paint reservoir in the preferred embodiment of the present invention.
Wherein: 1-pump, 2-coating tank, 4-inlet pipe, 6-coating storage tank, 8-discharging pipe, 10-coating die holder, 12-feeding switching unit, 14-discharge gate, 18-liquid level detector, 20-feed valve, 22-turning device, 24-central control unit.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Examples
As shown in fig. 1-2, this embodiment discloses a centralized feeding system for coating materials, which includes a coating material storage tank 6 and a plurality of coating material tank groups, wherein the number of the coating material tank groups is determined according to the number of coating die holders 10 on an optical fiber drawing production line, and specifically, one coating die holder 10 is correspondingly provided with one coating material tank group. Each paint tank group is provided with at least two paint tanks 2, all the paint tanks 2 are connected with a paint storage tank 6 through a feed pipe 4 with a pump 1, and paint in the paint storage tank 6 is pumped into each paint tank 2 of each paint tank group through the feed pipe 4; all paint cans 2 in each paint can group are connected with the corresponding coating die holders 10 through the discharge pipes 8, and the paint cans 2 in the paint can groups are fed into the corresponding coating die holders 10; selecting one of the paint cans 2 of the paint can group by the feed switching unit 12 to feed into the corresponding paint die holder 10; each of the feeding pipes 4 is provided with a feeding valve 20, each of the discharging pipes 8 is provided with a discharging valve, and each of the feeding valves 20 and the discharging valves is connected with a central control unit 24. The central control unit 24 controls the starting or closing of the feeding valve 20 and the discharging valve to realize automatic feeding of the paint storage tanks 6 into the paint tanks 2 and automatic feeding of the paint tanks 2 into the coating die holder 10, so as to realize centralized feeding control of paint.
The ton-level coating storage tank 6 is low in purchasing price compared with a small-volume storage tank, the ton-level coating storage tank 6 is directly purchased and returned and is installed at a designated position, the feeding pipe 4 with the pump is used for feeding the coating tanks 2, the discharging pipe 8 with the pump is used for feeding the coating die holder 10, and compared with the traditional manual feeding, the feeding cost can be reduced, and the feeding efficiency is improved.
As a further improvement of this embodiment, as shown in fig. 2-3, the paint storage tank 6 is disposed obliquely downward with respect to the horizontal plane, and the bottom of the side wall of the paint storage tank 6 is provided with a discharge port 14, so that the paint storage tank 6 disposed obliquely downward is beneficial to pumping as much paint in the tank into the paint tank 2 as possible, that is, the residual paint in the paint storage tank 6 is reduced as much as possible, and the waste of paint can be reduced. Considering that when there is little paint in the paint tank 6, the air on the liquid surface is easily pumped into the paint tank 2, so as to affect the purity of the paint, in the technical scheme of this embodiment, the inclined downward angle of the paint tank 6 relative to the horizontal plane is designed to be calculated according to the following formula:
m is the mass of the least paint remaining in the paint reservoir;
d is the diameter of the discharge hole of the coating storage tank;
ρ is the density of the coating;
l is the tank bottom length of the paint storage tank;
alpha is the angle at which the paint reservoir is inclined downwardly relative to the horizontal.
In the technical scheme of the embodiment, the paint storage tank 6 is a tank body with a cuboid structure, the tank bottom is of a square structure, and L is the tank bottom side length of the paint storage tank.
The angle alpha at which the paint reservoir is inclined downwards relative to the horizontal is determined according to the above formula so that there is a minimum of paint, i.e. a minimum of wasted paint, remaining in the paint reservoir 6 without pumping in an on-liquid bubble into the paint tank.
In the technical solution of this embodiment, the paint storage tank 6 is disposed on the turning device 22, and the turning device 22 adjusts the angle of the paint storage tank 6 that is disposed obliquely downward with respect to the horizontal plane.
As a further development of the invention, the centralized feed system also comprises heating elements which heat the paint reservoir 6, the feed pipe 4, the discharge pipe 8 and the paint cans 2, respectively. An optical fiber drawing line is provided with a feeding system in this embodiment, paint stored in a paint tank 6 of a ton class is sucked into each paint tank 2, one paint tank 2 is selected in each paint tank 2 by a feeding switching unit 12 to feed into a coating die holder 10, and all other paint tanks 2 are in a static state after being filled. The paint in the paint storage tank 6, the feed pipe 4, the discharge pipe 8 and each paint tank 2 is heated through the heating component, namely the paint entering the coating die holder 10 sequentially passes through primary heating in the paint storage tank 6, secondary heating in a pipeline and tertiary heating in the paint tank 2, and particularly the paint tank 2 is heated in a zero-pressure standing environment, after heating, bubbles mixed in the paint can float to the liquid level or even above the liquid level, and then expand, crack and discharge the paint tank, so that the effect of removing the bubbles is achieved. On the other hand, the plurality of paint cans 2 are used in combination, so that a lot of time is allowed for standing, heating and bubble removal before the paint pumped into the paint cans 2 enters the coating die holder 10.
In the technical scheme of the embodiment, two paint cans 2 are preferably configured in one paint can group, the two paint cans 2 alternately feed into the coating die holder 10, when the front paint can 2 feeds into the coating die holder 10, the paint storage tank 6 feeds into the other paint can 2, and the full paint can 2 enters a static heating bubble removing state, so that the circulation is realized, the paint in the paint storage tank 6 is fed into the coating die holder 10, and the automatic centralized feeding of the paint is realized.
In order to further improve the bubble removal effect, the discharge openings of the feed pipes 4 are all arranged below the initial liquid level of the respective coating tanks 2, and the feed openings of the discharge pipes 8 are all arranged below the initial liquid level of the respective coating tanks 2. The density of the bubbles is smaller than that of the paint, the bubbles always float upwards after the paint is heated, so that no bubbles exist at the position below the initial liquid level of the paint in the paint tank 2, and the respective pipe orifices of the feed pipe 4 and the discharge pipe 8 are arranged below the initial liquid level of the paint tank 2, thereby avoiding secondary mixed bubbles in the process of moving the paint in the pipeline.
The paint tank 2 is kept still under zero pressure, and bubbles naturally float upwards in the paint tank 2 under zero pressure in the process of keeping paint still and heating, so that the paint tank is expanded and ruptured, and the effect of improving the bubble removal rate is achieved.
A pipeline heating belt is arranged outside the feeding pipe 4 and the discharging pipe 8, and the pipeline heating belt is used for heating the paint in the pipeline on line; the heat-insulating cotton is coated outside the pipeline heating band, so that the temperature in the pipeline is kept constant by means of the heat-insulating cotton, and the heating efficiency is improved.
The tank heating belt is arranged outside the paint tank 2, and the paint in the paint tank 2 is heated on line through the tank heating belt, so that the constant temperature in the paint tank 2 is set, and the heating efficiency is improved while the bubble removal rate is ensured.
A liquid level detector 18 is arranged in the paint tank 2, and the liquid level detector 18 is connected with a central control unit 24. The coating material level in the coating material tank 2 is detected in real time by means of the level detector 18, and when the coating material level is below a preset level, the level detector 18 feeds back to the central control unit 24, and the central control unit 24 controls the switching of the coating material tank fed into the coating die holder 10. Specifically, the central control unit 24 controls the feeding valve to feed into each paint tank 2, and controls the discharging valve to select the paint tank 2 fed with the coating die holder 10, so as to realize full-automatic continuous and stable feeding and discharging of the paint.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. A coating centralized feeding system which is characterized in that: the device comprises a paint storage tank and a plurality of paint tank groups, wherein each paint tank group is provided with at least two paint tanks, the paint tanks are kept stand under zero pressure, and all the paint tanks are connected with the paint storage tank through a feed pipe with a pump; a coating die holder is correspondingly provided with a coating tank group, and all coating tanks in each coating tank group are connected with the corresponding coating die holder through discharge pipes; one of the coating tanks is selected by a feeding switching unit to feed into a corresponding coating die holder; each feeding pipe is provided with a feeding valve, each discharging pipe is provided with a discharging valve, and each feeding valve and each discharging valve are connected with a central control unit;
the paint storage tank is obliquely downwards arranged relative to the horizontal plane, a discharge hole is formed in the bottom of the side wall of the paint storage tank, and the downward angle of the paint storage tank relative to the horizontal plane is calculated according to the following formula:
；
m is the mass of the least paint remaining in the paint reservoir;
d is the diameter of the discharge hole of the coating storage tank;
ρ is the density of the coating;
l is the tank bottom length of the paint storage tank;
alpha is the angle at which the paint reservoir is inclined downwardly relative to the horizontal.
2. The coating concentrate feed system of claim 1, wherein: the paint discharging device further comprises a heating component which respectively heats the paint storage tank, the feed pipe, the discharge pipe and the paint tanks.
3. The coating concentrate feed system of claim 1, wherein: the discharge ports of the feed pipes are all arranged below the initial liquid level of the respective coating tanks.
4. The coating concentrate feed system of claim 1, wherein: the feed inlets of the discharge pipes are all arranged below the initial liquid level of the respective coating tanks.
5. The coating concentrate feed system of claim 2, wherein: a pipeline heating belt is arranged outside the feeding pipe and the discharging pipe, and the pipeline heating belt is used for heating the paint in each pipeline on line; and heat preservation cotton is coated outside the pipeline heating band.
6. The coating concentrate feed system of claim 2, wherein: the paint tank is provided with a tank heating belt, and paint in the paint tank is heated on line through the tank heating belt, so that the paint tank is internally provided with a constant temperature.
7. The coating concentrate feed system of claim 6, wherein: the paint tank is internally provided with a liquid level detector which is connected with a central control unit.
8. The coating concentrate feed system of claim 1, wherein: the paint storage tank is arranged on the turnover device, and the turnover device adjusts the angle of the paint storage tank which is obliquely arranged downwards relative to the horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810077698.5A CN108187978B (en) | 2018-01-26 | 2018-01-26 | Centralized feeding system for paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810077698.5A CN108187978B (en) | 2018-01-26 | 2018-01-26 | Centralized feeding system for paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108187978A CN108187978A (en) | 2018-06-22 |
| CN108187978B true CN108187978B (en) | 2023-11-07 |
Family
ID=62590893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810077698.5A Active CN108187978B (en) | 2018-01-26 | 2018-01-26 | Centralized feeding system for paint |
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| Country | Link |
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| CN (1) | CN108187978B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110639757B (en) * | 2019-10-31 | 2020-12-15 | 重庆市佳禾家具制造有限公司 | Roller coating production line |
| CN110639750B (en) * | 2019-10-31 | 2020-12-15 | 重庆市佳禾家具制造有限公司 | Door plant roller coat device |
| CN110624803B (en) * | 2019-10-31 | 2021-12-21 | 重庆市佳禾家具制造有限公司 | Roller coating production process |
| CN111270558A (en) * | 2020-02-28 | 2020-06-12 | 东莞建晖纸业有限公司 | Normal production conversion process without changing paper surface color |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105620A (en) * | 1984-06-21 | 1987-01-21 | 标准电话和电报公共有限公司 | Optical fiber is made |
| CN102531411A (en) * | 2012-03-09 | 2012-07-04 | 江苏通鼎光电股份有限公司 | Feeding system suitable for large-sized high speed continuous wiredrawing |
| CN103304155A (en) * | 2013-04-27 | 2013-09-18 | 江苏亨通光纤科技有限公司 | Feeding device for optical fiber coating |
| CN205495467U (en) * | 2016-03-24 | 2016-08-24 | 江门市科恒实业股份有限公司 | Lithium ion battery material mixture device |
| CN205874226U (en) * | 2016-07-29 | 2017-01-11 | 江苏斯德雷特通光光纤有限公司 | High -speed coating feed system for wire drawing |
| CN207872543U (en) * | 2018-01-26 | 2018-09-18 | 江苏南方光纤科技有限公司 | Coating concentrates feeding system |
-
2018
- 2018-01-26 CN CN201810077698.5A patent/CN108187978B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105620A (en) * | 1984-06-21 | 1987-01-21 | 标准电话和电报公共有限公司 | Optical fiber is made |
| CN102531411A (en) * | 2012-03-09 | 2012-07-04 | 江苏通鼎光电股份有限公司 | Feeding system suitable for large-sized high speed continuous wiredrawing |
| CN103304155A (en) * | 2013-04-27 | 2013-09-18 | 江苏亨通光纤科技有限公司 | Feeding device for optical fiber coating |
| CN205495467U (en) * | 2016-03-24 | 2016-08-24 | 江门市科恒实业股份有限公司 | Lithium ion battery material mixture device |
| CN205874226U (en) * | 2016-07-29 | 2017-01-11 | 江苏斯德雷特通光光纤有限公司 | High -speed coating feed system for wire drawing |
| CN207872543U (en) * | 2018-01-26 | 2018-09-18 | 江苏南方光纤科技有限公司 | Coating concentrates feeding system |
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| CN108187978A (en) | 2018-06-22 |
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