CN113262932A - Roller coater - Google Patents
Roller coater Download PDFInfo
- Publication number
- CN113262932A CN113262932A CN202110367191.5A CN202110367191A CN113262932A CN 113262932 A CN113262932 A CN 113262932A CN 202110367191 A CN202110367191 A CN 202110367191A CN 113262932 A CN113262932 A CN 113262932A
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- CN
- China
- Prior art keywords
- roller
- roll
- coating
- driving
- roll coater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 136
- 238000007761 roller coating Methods 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 35
- 238000000576 coating method Methods 0.000 claims abstract description 35
- 230000008859 change Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 29
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- 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
- B05C1/0821—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 characterised by driving means for rollers or work
Abstract
The invention provides a roller coater, belonging to the field of roller coater equipment, the roller coater of the invention comprises: a support; a roll change device, the roll change device comprising: the first horizontal driving device is arranged at the upper end of the bracket; the second horizontal driving device is arranged at the lower end of the support, the driving direction of a second driving end of the second horizontal driving device is parallel to the driving direction of a first driving end of the first horizontal driving device, and the second driving end is provided with a first lifting device; the upper coating roller mechanism is arranged at the first driving end; the lower roller coating mechanism is connected with the second driving end through the first lifting device; when the lifting device extends out, the first roller of the upper roller coating mechanism and the second roller of the lower roller coating mechanism are matched with each other.
Description
Technical Field
The invention belongs to the field of roller coater equipment, and particularly relates to a roller coater.
Background
A magnesium oxide (MgO) roller coater is a key device necessary for the production process of a silicon steel unit. At present, the equipment type selection in China mainly comprises: the single gantry cantilever structure, the hinge point swings the upper coating roller frame to complete the closing of the frame gap, and the Wu-Steel silicon steel domestic equipment, German and Japan and domestic equipment optimally designed by our part on the basis of the Japanese scheme and the like are basically selected.
Under the condition that the force measured by a pressure sensor is the same on the operating side and the transmission side of the cantilever type roller coater, the transmission side increases the upward large bending moment of the upright column by nearly four times compared with the operating side, so that the transmission side with a notch generates more elastic-plastic deformation than the operating side, and the cantilever main and secondary beams and the upright column do not have enough bending resistance, torsion resistance, tensile strength and rigidity, so that the thickness difference of the coating on the transmission side and the operating side and the high-low inclination of the upper coating roller and the lower coating roller are easy to generate. And cannot be corrected by the pressure sensor. The structure of the single portal frame with the gap ensures that only one side of the left bearing seat and the right bearing seat of the operation side and the transmission side of the upper coating roller and the lower coating roller slides during lifting, and the stability is poor.
Disclosure of Invention
The invention provides a roll coater, aiming to solve the problems of poor coating thickness of a transmission side and an operation side between a first roll and a second roll, high-low inclination of an upper coating roll and a lower coating roll and poor stability.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a roll coater, comprising:
a support;
a roll change device, the roll change device comprising:
the first horizontal driving device is arranged at the upper end of the bracket;
the second horizontal driving device is arranged at the lower end of the support, the driving direction of a second driving end of the second horizontal driving device is parallel to the driving direction of a first driving end of the first horizontal driving device, and the second driving end is provided with a first lifting device;
the upper coating roller mechanism is arranged at the first driving end;
the lower roller coating mechanism is connected with the second driving end through the first lifting device;
when the lifting device extends out, the first roller of the upper roller coating mechanism and the second roller of the lower roller coating mechanism are matched with each other.
The roller coater also comprises a first guide rail and a second guide rail which are parallel to each other, the first guide rail is arranged between the first driving end and the bracket, the second guide rail is arranged between the second driving end and the bracket, and the first guide rail and the second guide rail are both fixed with the bracket;
when the first roller and the second roller are matched with each other, the reaction force of the first roller and the second roller is transmitted to the bracket through the body of the upper roller mechanism and the first guide rail; the reaction force of the first roller on the second roller is transmitted to the bracket through the body of the lower roller coating mechanism and the second guide rail.
The support is a double-gantry fixed frame.
The body of the first lifting device is fixed on the second driving end, and the driving end of the first lifting device is connected with the lower roller coating mechanism.
The two ends of the first roller are provided with first detachable connecting pieces, and the first roller is detachably connected to the upper coating roller mechanism through the first detachable connecting pieces;
and second detachable connecting pieces are arranged at two ends of the second roller, and the second roller is detachably connected to the lower roller coating mechanism through the second detachable connecting pieces.
The roll coater also comprises a roll changing trolley which is arranged on one side of the upper roll coating mechanism.
And a second lifting device is arranged between the first horizontal driving device and the upper coating roller mechanism, and the upper coating roller mechanism is connected with the first driving end through the second lifting device.
The first lifting device comprises: the air spring type linear power mechanism comprises a guide mechanism, a linear power mechanism, a transmission piece and an air spring, wherein the working end of the linear power mechanism and the transmission piece are respectively connected with the guide mechanism, the working end of the linear power mechanism and the transmission piece both move along the guide direction of the guide mechanism, and the linear power mechanism is connected with the transmission piece through the air spring;
the lifting mechanism further comprises a pneumatic servo device, and the working end of the pneumatic servo device is communicated with the interior of the air spring.
The invention has the advantages that the upper roller coating mechanism can move in parallel through the first horizontal driving device, and the lower roller coating mechanism can move in parallel through the second horizontal driving device. Finally, the upper roller coating mechanism or the lower roller coating mechanism can be moved out, so that the upper roller coating mechanism and the lower roller coating mechanism can complete the operation of replacing the first roller or the second roller. When transmitting the force, the upper roller mechanism can directly transmit the reaction force received by the first roller to the bracket through the first horizontal driving device. The lower roller coating mechanism can directly transmit the reaction force received by the second roller to the bracket through the second horizontal driving device. The first roller and the second roller are ensured to be parallel to each other during operation, so that the stability of the first roller and the second roller is enhanced.
Drawings
FIG. 1 is a front view of a roll coater of the present invention;
FIG. 2 is a side view of the roll coater of the present invention;
FIG. 3 is a perspective view of a lifting mechanism connected to a lower coating roller mechanism of the roll coater of the present invention;
fig. 4 is a front view of fig. 3.
The reference number in the figure is, 1, bracket; 2. a lower roll coating mechanism; 21. a second roller; 3. an upper coating roller mechanism; 31. a first roller; 4. a roll changing trolley; 51. a first horizontal driving device; 52. a second horizontal driving device; 511. a first driving end; 512. a first guide rail; 521. a second drive end; 522. a second guide rail; 60. a first lifting device; 61. an air spring; 62. a pressure sensor; 63. a first servo motor; 64. a pneumatic servo device; 65. a worm and gear lifting mechanism; 66. a guide mechanism; 67. a transmission member.
Detailed Description
The solution of the roll coater provided by the embodiments of the present invention will be described in detail by several specific examples.
Example 1
Referring to fig. 1 and 2, an overall structure diagram of a roll coater of the present invention is shown, which includes:
a support 1. The support 1 is used for bearing the reaction force generated by the upper roller coating mechanism 3 and the lower roller coating mechanism 2 during operation. Specifically, the support 1 may be a double gantry fixed frame.
A roll change device, the roll change device comprising:
a first horizontal driving device 51, wherein the first horizontal driving device 51 is arranged at the upper end of the bracket 1. The first horizontal driving device 5 is used for driving the upper coating roller mechanism 3 to move back and forth along the horizontal direction.
The second horizontal driving device 52 is arranged at the lower end of the bracket 1, the driving direction of the second driving end 521 of the second horizontal driving device 52 is parallel to the driving direction of the first driving end 511 of the first horizontal driving device 51, and the second driving end 521 is provided with a first lifting device 60. The second horizontal driving device 52 is used for driving the lower roll coating mechanism 2 to move back and forth in the horizontal direction.
In one example, the roll coater further comprises a first guide rail 512 and a second guide rail 522 which are parallel to each other, wherein the first guide rail 512 is arranged between the first driving end 511 and the bracket 1, the second guide rail 522 is arranged between the second driving end 521 and the bracket 1, and both the first guide rail 512 and the second guide rail 522 are fixed with the bracket 1. In this example, the first rail 512 and the second rail 522 each have two roles. The first guide rail 512 guides the first driving end 511, the first guide rail 512 is integrally fixed to the upper end of the frame 1, and the first guide rail 512 is also used for directly transmitting the reaction force applied to the first roller 31 to the frame 1. The use of the first guide rail 512 allows the force to be directed uniformly throughout the applicator roller mechanism 3 when transmitting the applied force. The whole upper coating roller mechanism 3 is loaded on the bracket 1 vertically.
The second guide rail 522 guides the second driving end 521, and the second guide rail 522 is integrally fixed at the lower end of the bracket 1. The second rail 522 also serves to directly transmit the reaction force received by the second roller 21 to the carriage 1. The use of the second guide rail 522 allows the force to be uniformly applied to the entire lower roll coating mechanism 2 when the force is transmitted. The whole lower roller coating mechanism 2 is loaded on the bracket 1 vertically.
An upper coating roller mechanism 3, the upper coating roller mechanism 3 being provided at the first driving end 511;
and the lower roller coating mechanism 2 is connected with the second driving end 521 through the first lifting device 60. The body of the first lifting device is fixed on the second driving end 521, and the driving end of the first lifting device is connected with the lower roller coating mechanism 2.
When the lifting device is extended, the first roller 31 of the upper roller mechanism 3 and the second roller 21 of the lower roller mechanism 2 are matched with each other.
When the roll coater is in operation, the first horizontal driving device 51 and the second horizontal driving device 52 first align the upper roll mechanism 3 and the lower roll mechanism 2. The first lifting device 60 drives the whole lower roll coating mechanism 2 to move upwards, and the first roller 31 and the second roller 21 are matched with each other to roll the strip. And when the first roller 31 and the second roller 21 are matched with each other, the reaction force of the second roller 21 on the first roller 31 is transmitted to the bracket 1 through the body of the upper roller mechanism 3 and the first guide rail 512; the reaction force of the second roller 21 by the first roller 31 is transmitted to the stand 1 via the body of the lower roll coating mechanism 2 and the second guide rail 522.
And in one example, a second lifting device is arranged between the first horizontal driving device 51 and the upper coating roller mechanism 3, and the upper coating roller mechanism 3 is connected with the first driving end 511 through the second lifting device. When the roller coater works, the second lifting device and the first lifting device 60 can work simultaneously, and the upper roller coating mechanism 3 and the lower roller coating mechanism 2 are adjusted to be close to each other. Finally, the first roller 31 and the second roller 21 are matched to work.
In summary, the upper roller mechanism can be moved in parallel by the first horizontal driving means, and the lower roller mechanism can be moved in parallel by the second horizontal driving means. Finally, the upper roller coating mechanism or the lower roller coating mechanism can be moved out, so that the upper roller coating mechanism and the lower roller coating mechanism can complete the operation of replacing the first roller or the second roller. When transmitting the force, the upper roller mechanism can directly transmit the reaction force received by the first roller to the bracket through the first horizontal driving device. The lower roller coating mechanism can directly transmit the reaction force received by the second roller to the bracket through the second horizontal driving device. The first roller and the second roller are ensured to be parallel to each other during operation, so that the stability of the first roller and the second roller is enhanced.
Example 2
Further, referring to fig. 2, in another embodiment of the roll coater of the present invention, first detachable connectors are disposed at two ends of the first roller 31, and the first roller 31 is detachably connected to the upper roller mechanism 3 through the first detachable connectors;
and second detachable connecting pieces are arranged at two ends of the second roller 21, and the second roller 21 is detachably connected to the lower roller coating mechanism 2 through the second detachable connecting pieces. The roller coater also comprises a roller changing trolley 4, and the roller changing trolley 4 is arranged on one side of the lower roller coating mechanism 2.
In the above embodiment, the first roller 31 is carried by the roller changing carriage 4. The operation of removing the first roller 31 can be accomplished by removing the first detachable connection after being transported into position. The operation of mounting the first roller 31 can be accomplished by mounting the first detachable connection.
The second roller 21 is transported by the roller change carriage 4. The operation of removing the second roller 21 can be completed by removing the second detachable connection after being transported into position. The operation of mounting the second roller 21 can be accomplished by mounting the second detachable connection.
Example 3
Further, referring to fig. 3 and 4, in another embodiment of the roll coater of the present invention, the first lifting device 60 includes a guiding mechanism 66, a linear power mechanism, a transmission member 67 and an air spring 61, the working end of the linear power mechanism and the transmission member 67 are respectively connected to the guiding mechanism 66, the working end of the linear power mechanism and the transmission member 67 both move along the guiding direction of the guiding mechanism 66, and the linear power mechanism is connected to the transmission member 67 through the air spring 61. The lifting mechanism further comprises a pneumatic servo device 64, and the working end of the pneumatic servo device 64 is communicated with the interior of the air spring 61.
In the above embodiments, the transmission member 67 may be a transmission rod, a transmission step, or a solid or hollow block for transmitting power. The guide mechanism 66 guides the working end of the linear power mechanism and the direction of movement of the transmission member 67. An air spring 61 is arranged between the output end of the linear power mechanism and the transmission piece 67, so that when the lifting mechanism provided by the invention lifts the working part of the roller coating machine, the working part can obtain a buffering function in the moving process. For example, the working member may be an upper applicator roller mechanism and/or a lower applicator roller mechanism.
And the air spring 61 can be adjusted finely by using the pneumatic servo device 64 when the working components of the roller coating machine are adjusted finely, so that the adjustment of the gap distance between the upper coating roller mechanism and the lower coating roller mechanism is more accurate. Through setting up air spring, air spring can adjust through air conditioning equipment, and its precision and stability are higher. A particular pneumatic servo arrangement 64 may include a gas source, a first servo valve, and a control module. The first servo valve outputs a modulated flow and pressure in response to receiving the electrical analog signal. The air supply is connected to the interior of the air spring 61 via a first servo valve. The control module is electrically connected with the first servo valve. The control module is used for outputting an electric appliance analog signal to the first servo valve. When it is desired to increase the internal pressure of air spring 61, the first servo valve outputs a modulated flow and pressure to cause the air from the air supply to enter the interior of air spring 61.
Further, in another embodiment of the roll coater of the present invention, the lifting mechanism further includes a pressure sensor 62, the pressure sensor 62 is disposed between the linear power mechanism and the transmission member 67, and the pressure sensor 62 is used for pressure between the linear power mechanism and the transmission member 67. The lifting mechanism further comprises a control module for detecting the pressure value of the pressure sensor 62 and displaying the pressure value to a user through a display screen.
In the above embodiment, the pressure sensor 62 is used to detect the pressure between the linear actuator and the actuator 67. And feeds back the pressure value to the user, so that the user can intuitively obtain the pressure value. Therefore, a user can know whether the positions of the upper coating roller mechanism and the lower coating roller mechanism are in place or not by observing the pressure values.
In another embodiment of the roll coater of the present invention, the body of the linear power mechanism is fixed in position relative to the guiding mechanism 66.
In the above embodiment, the body of the linear power mechanism is fixed in position relative to the guide mechanism 66. The output end of the linear power mechanism can stably move back and forth under the guiding action of the guiding mechanism 66. The guide mechanism 66 may be a linear guide; or a guide mechanism 66 consisting of a guide post and a guide sleeve.
Further, in another embodiment of the roll coater according to the present invention, the linear power mechanism includes a first servo motor 63 and a worm gear lifting mechanism 65, the first servo motor 63 is in transmission connection with the worm gear lifting mechanism 65, and the worm gear lifting mechanism 65 is configured to output power to drive the transmission member 67 to move along the guiding direction of the guiding mechanism 66. Or the linear power mechanism comprises a second servo motor and a ball screw nut pair, and the ball screw nut pair is used for outputting power so as to drive the transmission piece 67 to move along the guiding direction of the guiding mechanism 66.
In the above embodiment, the linear power mechanism composed of the first servo motor 63 and the worm gear and worm lifting mechanism 65 has a large torque. The sound is small, the stability is high, and the worm gear lifting mechanism 65 can be an SWL spiral screw rod lifter. The model is SJA elevator turbine worm lifting mechanism.
And a linear power mechanism consisting of the second servo motor and the ball screw nut pair has high precision and stable operation.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, descriptions related to "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Technical solutions between various embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.
Claims (9)
1. A roll coater, comprising:
a support;
a roll change device, the roll change device comprising:
the first horizontal driving device is arranged at the upper end of the bracket;
the second horizontal driving device is arranged at the lower end of the support, the driving direction of a second driving end of the second horizontal driving device is parallel to the driving direction of a first driving end of the first horizontal driving device, and the second driving end is provided with a first lifting device;
the upper coating roller mechanism is arranged at the first driving end;
the lower roller coating mechanism is connected with the second driving end through the first lifting device;
when the lifting device extends out, the first roller of the upper roller coating mechanism and the second roller of the lower roller coating mechanism are matched with each other.
2. The roll coater of claim 1 further comprising first and second parallel rails, said first rail being disposed between said first drive end and said frame, said second rail being disposed between said second drive end and said frame, said first and second rails each being fixed to said frame;
when the first roller and the second roller are matched with each other, the reaction force of the first roller and the second roller is transmitted to the bracket through the body of the upper roller mechanism and the first guide rail; the reaction force of the first roller on the second roller is transmitted to the bracket through the body of the lower roller coating mechanism and the second guide rail.
3. The roll coater of claim 1 wherein said frame is a double gantry fixed frame.
4. The roll coater of claim 1, wherein said body of said first elevator device is secured to said second drive end, said drive end of said first elevator device being connected to said lower roll coating mechanism.
5. The roll coater of claim 1, wherein said first roll is provided with first detachable connections at each end thereof, said first roll being detachably connected to said applicator mechanism by said first detachable connections;
and second detachable connecting pieces are arranged at two ends of the second roller, and the second roller is detachably connected to the lower roller coating mechanism through the second detachable connecting pieces.
6. The roll coating machine of claim 1 further comprising a roll change cart disposed on one side of the upper roll mechanism.
7. The roll coater of claim 1 wherein a second elevator is provided between said first horizontal drive means and said applicator roll mechanism, said applicator roll mechanism being connected to said first drive end by said second elevator.
8. The roll coater of claim 1 wherein said first elevator means comprises: the air spring type linear power mechanism comprises a guide mechanism, a linear power mechanism, a transmission piece and an air spring, wherein the working end of the linear power mechanism and the transmission piece are respectively connected with the guide mechanism, the working end of the linear power mechanism and the transmission piece move along the guide direction of the guide mechanism, and the linear power mechanism is connected with the transmission piece through the air spring.
9. The roll coater of claim 8 wherein said elevator mechanism further includes a pneumatic servo device, a working end of said pneumatic servo device being in communication with the interior of said air spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110367191.5A CN113262932A (en) | 2021-04-06 | 2021-04-06 | Roller coater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110367191.5A CN113262932A (en) | 2021-04-06 | 2021-04-06 | Roller coater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113262932A true CN113262932A (en) | 2021-08-17 |
Family
ID=77228495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110367191.5A Pending CN113262932A (en) | 2021-04-06 | 2021-04-06 | Roller coater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113262932A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070259125A1 (en) * | 2006-05-02 | 2007-11-08 | Boston Scientific Scimed, Inc. | Partially roll coated workpiece and methods and systems for making the same |
| CN203370682U (en) * | 2013-06-04 | 2014-01-01 | 中冶南方工程技术有限公司 | Horizontal type three-roller compact type roller coater |
| CN110523579A (en) * | 2019-09-24 | 2019-12-03 | 中冶南方工程技术有限公司 | Two roller coating machines |
| CN112495690A (en) * | 2020-12-22 | 2021-03-16 | 中冶南方工程技术有限公司 | Single-roller coating machine |
| CN112536181A (en) * | 2020-12-22 | 2021-03-23 | 中冶南方工程技术有限公司 | Horizontal roller coating unit and roller changing method thereof |
-
2021
- 2021-04-06 CN CN202110367191.5A patent/CN113262932A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070259125A1 (en) * | 2006-05-02 | 2007-11-08 | Boston Scientific Scimed, Inc. | Partially roll coated workpiece and methods and systems for making the same |
| CN203370682U (en) * | 2013-06-04 | 2014-01-01 | 中冶南方工程技术有限公司 | Horizontal type three-roller compact type roller coater |
| CN110523579A (en) * | 2019-09-24 | 2019-12-03 | 中冶南方工程技术有限公司 | Two roller coating machines |
| CN112495690A (en) * | 2020-12-22 | 2021-03-16 | 中冶南方工程技术有限公司 | Single-roller coating machine |
| CN112536181A (en) * | 2020-12-22 | 2021-03-23 | 中冶南方工程技术有限公司 | Horizontal roller coating unit and roller changing method thereof |
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Application publication date: 20210817 |