CN108554733B - Scraper clearance adjustment mechanism - Google Patents
Scraper clearance adjustment mechanism Download PDFInfo
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- CN108554733B CN108554733B CN201810561874.2A CN201810561874A CN108554733B CN 108554733 B CN108554733 B CN 108554733B CN 201810561874 A CN201810561874 A CN 201810561874A CN 108554733 B CN108554733 B CN 108554733B
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- roller
- scraper
- scraper roller
- eccentric
- gap
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- 230000007246 mechanism Effects 0.000 title claims abstract description 44
- 238000006073 displacement reaction Methods 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000011247 coating layer Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000758 substrate 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
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
- B05C11/041—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for positioning, loading, or deforming the blades
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- Coating Apparatus (AREA)
- Paper (AREA)
Abstract
The application discloses a scraper gap adjusting mechanism, which comprises a bottom roller, a scraper roller and an adjusting device, wherein the adjusting device comprises a displacement mechanism and a limiting mechanism, the displacement mechanism is connected with the scraper roller and can drive the scraper roller to act so as to increase or decrease the distance between the scraper roller and the bottom roller, the limiting mechanism comprises a rotary driving device and an eccentric shaft structure which are connected together, the side wall of the eccentric shaft structure can be abutted against the displacement mechanism or the scraper roller so as to limit the action of the scraper roller, and the scraper roller is positioned, so that the purpose of adjusting the gap between the scraper roller and the bottom roller is achieved, the rotation angle of the eccentric shaft structure is controlled, and the gap between the scraper roller and the bottom roller can be changed. The eccentric axle structure and the rotary driving device are matched to replace a screw pair with extremely high precision, so that the manufacturing cost of the application can be reduced. The back clearance of the screw thread pair does not exist between the eccentric wheel shaft structure and the rotary driving device, so that the repeated positioning accuracy of the application is high.
Description
Technical Field
The application relates to a coating machine, in particular to a scraper gap adjusting mechanism applied to the coating machine.
Background
It is known that, due to the different parameters such as the substrate and the coating thickness for production, the gap between the doctor roll and the backing roll of the coater must be adjusted during production.
The conventional adjusting mechanism for adjusting the gap between the doctor roll and the base roll of the coater generally adopts the following structure: the scraper roller is arranged on the mounting structure and can move along with the mounting structure to change the distance between the scraper roller and the bottom roller, the inclined block is pushed to move linearly through the thread pair, the inclined surface on the inclined block abuts against the mounting structure, the moving distance of the scraper roller is limited by the inclined block, and the scraper roller is positioned, so that the purpose of adjusting the gap between the scraper roller and the bottom roller is achieved. The screw thread pair comprises screw hole and the screw rod of setting at threaded hole, and the screw rod of this kind of structure is vice, and the cooperation precision requirement of screw rod and screw hole is very high, and manufacturing cost is high. In addition, because the back clearance of the screw thread pair can not be completely eliminated, the repeated positioning precision of the scraper roller is not high, the thickness of the coating layer is uneven, and the quality requirement of a customer is difficult to meet.
Disclosure of Invention
The application provides a scraper gap adjusting mechanism, which aims to solve the problems of high manufacturing cost and low repeated positioning precision of the existing adjusting mechanism.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a doctor clearance adjustment mechanism, backing roll, doctor roll and adjusting device, doctor roll and backing roll are parallel to each other. The adjusting device is arranged on a mounting seat, is connected with the scraper roller and can drive the scraper roller to act so as to adjust the gap between the scraper roller and the bottom roller. The adjusting device comprises a displacement mechanism and a limiting mechanism, wherein the displacement mechanism is connected with the scraper roller and can drive the scraper roller to act so as to increase or decrease the distance between the scraper roller and the bottom roller; the limiting mechanism comprises a rotary driving device and an eccentric shaft structure which are connected together, and the side wall of the eccentric shaft structure can be abutted against the displacement mechanism or the scraper roller to limit the action of the scraper roller.
Preferably, the displacement mechanism comprises a swing arm and a piston cylinder, the swing arm is pivoted on the mounting seat through a pivot shaft, the scraper roller is arranged on the swing arm and can swing along with the swing arm, the piston cylinder is movably connected with the mounting seat and the swing arm at the same time, and a piston rod of the piston cylinder can drive the swing arm to swing when extending or retracting.
Further, a limiting block used for being in contact with the eccentric wheel shaft structure is detachably arranged on the swing arm.
Preferably, the eccentric shaft structure comprises an eccentric shaft connected to a rotary drive.
Further, the eccentric shaft structure further comprises a rolling bearing sleeved on the eccentric shaft.
Preferably, the number of the adjusting devices is two, and the two adjusting devices are respectively arranged at two ends of the scraper roller.
The beneficial effects of the application are as follows: the application comprises a bottom roller, a scraper roller and an adjusting device, wherein the adjusting device comprises a displacement mechanism and a limiting mechanism, the displacement mechanism is connected with the scraper roller and can drive the scraper roller to act so as to increase or decrease the distance between the scraper roller and the bottom roller, the limiting mechanism comprises a rotary driving device and an eccentric axle structure which are connected together, the side wall of the eccentric axle structure can be abutted against the displacement mechanism or the scraper roller so as to limit the action of the scraper roller, and the scraper roller is positioned, thereby achieving the purpose of adjusting the gap between the scraper roller and the bottom roller, controlling the rotation angle of the eccentric axle structure and changing the gap between the scraper roller and the bottom roller. The application uses the cooperation of the eccentric axle structure and the rotary driving device to replace the screw thread pair which needs extremely high precision, thereby reducing the manufacturing cost of the application. In addition, no back clearance exists between the eccentric wheel shaft structure and the rotary driving device, so that the repeated positioning precision is high, the thickness of the coating layer is ensured to be thin and uniform, and the quality requirement of a customer is met.
Drawings
The application is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of the overall structure of the present application;
fig. 2 is a side view of the adjustment device.
Detailed Description
Referring to fig. 1 and 2, the present application is a doctor gap adjusting mechanism comprising a base roller 1, a doctor roller 2, and an adjusting device, the doctor roller 2 being parallel to the base roller 1. The adjusting device is arranged on a mounting seat 5, is connected with the scraper roller 2 and can drive the scraper roller 2 to act so as to adjust the gap between the scraper roller 2 and the bottom roller 1.
Specifically, the adjusting device comprises a displacement mechanism and a limiting mechanism, the displacement mechanism is connected with the scraper roller 2 and can drive the scraper roller 2 to act so as to increase or decrease the distance between the scraper roller 2 and the bottom roller 1, the limiting mechanism comprises a rotary driving device 41 and an eccentric axle structure 42 which are connected together, the side wall of the eccentric axle structure 42 can be abutted against the displacement mechanism or the scraper roller 2 so as to limit the action of the scraper roller 2, the scraper roller 2 is positioned, the purpose of adjusting the gap between the scraper roller 2 and the bottom roller 1 is achieved, the rotary angle of the eccentric axle structure 42 is controlled, and the gap between the scraper roller 2 and the bottom roller 1 can be changed. The present application utilizes the cooperation of the eccentric axle structure 42 and the rotary driving device 41 to replace the screw pair requiring extremely high precision, thereby reducing the manufacturing cost of the present application. In addition, no back clearance exists between the eccentric wheel shaft structure 42 and the rotary driving device 41, so that the repeated positioning accuracy is high, the thickness of the coating layer is ensured to be even, and the quality requirement of a customer is met.
Referring to fig. 1, the displacement mechanism includes a swing arm 31 and a piston cylinder 32, the swing arm 31 is pivotally provided on the mount 5 through a pivot shaft 33 so that the swing arm 31 can swing with respect to the mount 5, and the doctor roller 2 is provided on the swing arm 31 and can swing following the swing arm 31. The piston cylinder 32 is movably connected with the mounting seat 5 and the swing arm 31, when the piston rod of the piston cylinder 32 extends or retracts, the swing arm 31 can be driven to swing, and when the scraper roller 2 swings along with the swing arm 31, the distance between the scraper roller 2 and the bottom roller 1 is changed.
Further, a limiting block 34 for contacting with the eccentric axle structure 42 is detachably arranged on the swing arm 31, so as to avoid abrasion of the swing arm 31 and reduce the surface machining precision of the swing arm 31, and even if the limiting block 34 is abraded, the limiting block 34 can be replaced to ensure that the positioning precision is not affected. Specifically, the swing arm 31 and the stopper 34 are detachably connected by means of bolting or sliding clamping.
In this embodiment, the eccentric axle structure 42 is abutted against the stopper 34 on the swing arm 31, and of course, the position of the eccentric axle structure 42 can be adjusted to make the eccentric axle structure 42 abutted against the doctor roller 2 during practical application, and similarly, the stopper 34 capable of being detached from the doctor roller 2 can also be disposed on the doctor roller 2.
In addition, when in practical application, the displacement mechanism can also be composed of parts such as a guide rail and a direct-acting cylinder, the guide rail and the direct-acting cylinder are both arranged on the mounting seat 5, the scraper roller 2 is movably arranged on the guide rail through a fixing seat, and the direct-acting cylinder is connected with the fixing seat and can drive the fixing seat and the scraper roller 2 to move along the guide rail, so that the distance between the scraper roller 2 and the bottom roller 1 can be increased or reduced.
The eccentric axle structure 42 includes an eccentric axle 421 connected to the rotary driving device 41, and when the eccentric axle 421 rotates and abuts against the stopper 34, the distance between the axis of the output shaft of the rotary driving device 41 and the swing arm 31 can be changed, thereby changing the gap between the doctor roller 2 and the base roller 1. The eccentric shaft 421 is further pivotally mounted on the mounting base 5, so as to reduce radial runout generated when the eccentric shaft 421 rotates, and improve positioning accuracy.
Further, the eccentric axle structure 42 further includes a rolling bearing 422 sleeved on the eccentric shaft 421, and rolling friction is formed between the rolling bearing 422 and the limiting block 34, so that friction resistance can be reduced, abrasion can be reduced, and positioning accuracy can be improved.
In addition, the eccentric shaft 421 may be composed of a driving shaft and a cam coupled to the driving shaft, and the driving shaft may be mass-produced and then the cam may be installed as required.
The rotation driving device 41 includes a motor 411 and a decelerator 412 connected to the motor 411, and the rotation of the motor 411 is controlled by a computer. In actual production, a thickness gauge is arranged on the coating machine, and the gap between the scraper roller 2 and the bottom roller 1 can be adjusted in real time according to the monitoring data of the thickness gauge, so that the coating thickness is uniform and stable, and the quality of a coated product is ensured.
In the present application, the number of the regulating devices is two, and the two regulating devices are arranged at both ends of the doctor roll 2. The two adjusting devices can work independently, so that the two ends of the scraper roller 2 and the bottom roller 1 can keep the same gap, and the uniformity of the thickness of the coating is ensured.
The specific working procedure of the application is as follows: the doctor roller 2 is mounted on the swing arm 31 and swings around the pivot shaft 33 under the pushing of the piston cylinder 32, so that the gap between the doctor roller 2 and the bottom roller 1 is changed, and the required gap is obtained by changing the position of the limiting block 34. The motor 411 rotates, the eccentric shaft 421 is driven to rotate through the speed reducer 412, the rotation angle is calculated and controlled, the limiting block 34 on the swinging arm 31 and the rolling bearing 422 on the eccentric shaft 421 are mutually abutted together, the swinging of the swinging arm 31 is limited by the combined action of the piston cylinder 32 and the eccentric shaft structure 42, so that the scraper roller 2 is positioned, the position of the limiting block 34 correspondingly changes due to the rotation of the eccentric shaft 421, and the gap between the scraper roller 2 and the bottom roller 1 also changes, so that the gap adjustment process between the scraper roller 2 and the bottom roller 1 is completed. In the production process of the coating machine, the gap between the scraper roller 2 and the bottom roller 1 can be adjusted in real time according to the monitoring data of the thickness gauge.
Referring to fig. 1, in the present application, the side wall of the eccentric axle structure 42 abuts against the displacement mechanism to limit the doctor roller 2 to continuously approach the bottom roller 1, so as to achieve the purpose of adjusting the gap between the doctor roller 2 and the bottom roller 1. Of course, in practical application, the installation direction of the piston cylinder 32 and the eccentric axle structure 42 can be adjusted, so that the doctor roller 2 can swing freely towards the direction approaching the bottom roller 1, and the displacement mechanism can be abutted against the side wall of the eccentric axle structure 42 when the doctor roller 2 swings towards the direction away from the bottom roller 1, thereby achieving the purpose of adjusting the gap between the doctor roller 2 and the bottom roller 1.
The above examples are only preferred embodiments of the application, and other embodiments of the application are possible. Equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the application, and these equivalent modifications or substitutions are intended to be included within the scope of the present application as set forth in the following claims.
Claims (5)
1. A scraper gap adjusting mechanism comprises
A bottom roller (1);
the scraper roller (2) is parallel to the bottom roller (1);
the adjusting device is arranged on a mounting seat (5), is connected with the scraper roller (2) and can drive the scraper roller (2) to act so as to adjust the gap between the scraper roller (2) and the bottom roller (1);
characterized in that the adjusting device comprises
The displacement mechanism is connected with the scraper roller (2) and can drive the scraper roller (2) to act so as to increase or decrease the distance between the scraper roller (2) and the bottom roller (1);
the limiting mechanism comprises a rotary driving device (41) and an eccentric axle structure (42) which are connected together, and the side wall of the eccentric axle structure (42) can be abutted against the displacement mechanism or the scraper roller (2) to limit the action of the scraper roller (2);
the eccentric axle structure (42) comprises an eccentric axle (421) connected with a rotary driving device (41), and the rotary driving device (41) can drive the eccentric axle (421) to rotate and enable the eccentric axle (421) to abut against the displacement mechanism or the scraper roller (2) so as to limit the action of the scraper roller (2).
2. A doctor blade clearance adjustment mechanism according to claim 1, characterized in that: the displacement mechanism comprises
The swinging arm (31) is pivoted on the mounting seat (5) through a pivot shaft (33), and the scraper roller (2) is arranged on the swinging arm (31) and can swing along with the swinging arm (31);
the piston cylinder (32) is movably connected with the mounting seat (5) and the swing arm (31), and when a piston rod of the piston cylinder (32) extends or retracts, the swing arm (31) can be driven to swing.
3. A doctor blade clearance adjustment mechanism according to claim 2, characterized in that: a limiting block (34) used for being in contact with the eccentric wheel shaft structure (42) is detachably arranged on the swing arm (31).
4. A doctor blade clearance adjustment mechanism according to claim 1, characterized in that: the eccentric shaft structure (42) further comprises a rolling bearing (422) sleeved on the eccentric shaft (421).
5. A doctor blade clearance adjustment mechanism according to claim 1, characterized in that: the number of the regulating devices is two, and the two regulating devices are respectively arranged at two ends of the scraper roller (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561874.2A CN108554733B (en) | 2018-06-01 | 2018-06-01 | Scraper clearance adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561874.2A CN108554733B (en) | 2018-06-01 | 2018-06-01 | Scraper clearance adjustment mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108554733A CN108554733A (en) | 2018-09-21 |
| CN108554733B true CN108554733B (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810561874.2A Active CN108554733B (en) | 2018-06-01 | 2018-06-01 | Scraper clearance adjustment mechanism |
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| Country | Link |
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| CN (1) | CN108554733B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224497A (en) * | 2018-10-24 | 2019-01-18 | 爱发科真空技术（沈阳）有限公司 | It is a kind of rotatably to solidify recycling and coagulum mechanism for stripping |
| CN113275187B (en) * | 2021-07-20 | 2021-09-28 | 南通市通州区同博机械制造有限公司 | Secondary coating device capable of accurately controlling coating amount |
| CN114011650B (en) * | 2021-08-25 | 2023-04-11 | 河北华胜科技有限公司 | Plaster gluing equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3695221A (en) * | 1971-05-24 | 1972-10-03 | Paper Converting Machine Co | Coating apparatus |
| US5303010A (en) * | 1991-06-07 | 1994-04-12 | Asahi Kogaku Kogyo Kabushiki Kaisha | Doctor blade mounting structure |
| JP2009285596A (en) * | 2008-05-30 | 2009-12-10 | Oji Paper Co Ltd | Blade coater, method of adjusting application amount of blade coater and manufacturing method of application paper |
| CN201361603Y (en) * | 2008-11-28 | 2009-12-16 | 天空能源(洛阳)有限公司 | Pole piece coating machine capable of automatically controlling coating clearance |
| CN105457847A (en) * | 2015-12-18 | 2016-04-06 | 中山松德新材料装备有限公司 | Scraper roller rotation mechanism |
| CN205225928U (en) * | 2015-11-20 | 2016-05-11 | 东莞市工兴包装工业有限公司 | Scraper clearance electrical control structure |
| CN205904072U (en) * | 2016-06-29 | 2017-01-25 | 深圳市浩能科技有限公司 | Scraper guiding mechanism and reverse osmosis membrane production facility |
| CN206273383U (en) * | 2016-12-16 | 2017-06-23 | 东莞市钢鑫机械有限公司 | A kind of scraper mechanism of coating machine easy to adjust |
| CN208712103U (en) * | 2018-06-01 | 2019-04-09 | 中山松德新材料装备有限公司 | A kind of scraper gap adjustment mechanism |
-
2018
- 2018-06-01 CN CN201810561874.2A patent/CN108554733B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3695221A (en) * | 1971-05-24 | 1972-10-03 | Paper Converting Machine Co | Coating apparatus |
| US5303010A (en) * | 1991-06-07 | 1994-04-12 | Asahi Kogaku Kogyo Kabushiki Kaisha | Doctor blade mounting structure |
| JP2009285596A (en) * | 2008-05-30 | 2009-12-10 | Oji Paper Co Ltd | Blade coater, method of adjusting application amount of blade coater and manufacturing method of application paper |
| CN201361603Y (en) * | 2008-11-28 | 2009-12-16 | 天空能源(洛阳)有限公司 | Pole piece coating machine capable of automatically controlling coating clearance |
| CN205225928U (en) * | 2015-11-20 | 2016-05-11 | 东莞市工兴包装工业有限公司 | Scraper clearance electrical control structure |
| CN105457847A (en) * | 2015-12-18 | 2016-04-06 | 中山松德新材料装备有限公司 | Scraper roller rotation mechanism |
| CN205904072U (en) * | 2016-06-29 | 2017-01-25 | 深圳市浩能科技有限公司 | Scraper guiding mechanism and reverse osmosis membrane production facility |
| CN206273383U (en) * | 2016-12-16 | 2017-06-23 | 东莞市钢鑫机械有限公司 | A kind of scraper mechanism of coating machine easy to adjust |
| CN208712103U (en) * | 2018-06-01 | 2019-04-09 | 中山松德新材料装备有限公司 | A kind of scraper gap adjustment mechanism |
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| Publication number | Publication date |
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| CN108554733A (en) | 2018-09-21 |
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