CN114210522B - Shaftless rotary coating device - Google Patents
Shaftless rotary coating device Download PDFInfo
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- CN114210522B CN114210522B CN202111591874.5A CN202111591874A CN114210522B CN 114210522 B CN114210522 B CN 114210522B CN 202111591874 A CN202111591874 A CN 202111591874A CN 114210522 B CN114210522 B CN 114210522B
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- annular
- coating
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- ring
- cavity
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- 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
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
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- 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
- B05C11/11—Vats or other containers for liquids or other fluent materials
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- 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
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/04—Apparatus specially adapted for applying particulate materials to surfaces the particulate material being projected, poured or allowed to flow onto the surface of the work
Abstract
The invention discloses a shaftless rotary coating device, which can enable powder in a coating cavity to be uniformly suspended. The coating device comprises a coating barrel with an opening at the top, wherein an air inlet is formed in the bottom wall of the coating barrel, a horizontally arranged fluidization plate is arranged in the coating barrel, and the fluidization plate divides the inner cavity of the coating barrel into a coating cavity and an air inlet cavity; the coating cavity is positioned above the air inlet cavity; an annular piece capable of rotating around the axis L of the coating cavity is arranged in the coating cavity; a stirring piece is connected below the annular piece; the device also comprises a driving mechanism for driving the annular piece to rotate. Thereby ensuring that the workpiece is evenly dip-coated and has good surface quality. Meanwhile, the device has the advantages of high reliability, dust resistance, light weight and the like.
Description
Technical Field
The invention belongs to the technical field of surface coating, and particularly relates to a shaftless rotary coating device.
Background
The surface coating technique is to put the workpiece into fluidized powder and then dip-coat the workpiece with the powder. In the actual operation process, the powder is fluidized by the introduced airflow in the coating barrel, the air pressure of the airflow entering the tank body is reduced, and under the action of gravity, the fluidized powder in the coating barrel is easily unevenly distributed, so that the uneven dip coating of the workpiece is caused, and the surface quality is poor.
In order to solve the above technical problem, patent document No. 202110895855.5 discloses a small pneumatic surface coating apparatus, which provides vibration to a coating barrel by a vibration device and simultaneously realizes the surface coating work of the parts moved downwards in the coating barrel by a lifting device. One path of compressed air is uniformly blown to the fluidization plate at the bottom of the coating barrel body through the air guide partition plate to suspend the coating powder. And the other path of compressed air enters a pneumatic vibrator to generate vibration with certain frequency, so that the coating powder is vibrated and suspended. The technical scheme has the technical defect that the effect of uniformly suspending the powder is limited through the vibration effect, so that the dip coating of the actually processed workpiece is not uniform.
Disclosure of Invention
The invention aims to provide a shaftless rotary coating device, which can uniformly suspend powder in a coating cavity.
The technical scheme adopted by the invention for solving the technical problems is as follows: the shaftless rotary coating device comprises a coating barrel with an opening at the top, wherein an air inlet is formed in the bottom wall of the coating barrel, a horizontally arranged fluidization plate is arranged in the coating barrel, and the fluidization plate divides the inner cavity of the coating barrel into a coating cavity and an air inlet cavity; the coating cavity is positioned above the air inlet cavity; an annular piece capable of rotating around the axis L of the coating cavity is arranged in the coating cavity; a stirring piece is connected below the annular piece; the device also comprises a driving mechanism for driving the annular piece to rotate.
Furthermore, the driving mechanism comprises a driving motor, and a gear is installed at the shaft extending end of the driving motor; the periphery of the annular piece is provided with an annular rack which is coaxial with the annular piece; the gear is meshed with the annular rack.
Further, an annular guide rail which is coaxial with the annular piece is arranged on the inner side wall of the coating barrel;
the annular part is provided with a first roller and a second roller which are arranged at intervals up and down, the annular guide rail is positioned between the first roller and the second roller, and the first roller and the second roller are in rolling fit with the annular guide rail;
the first idler wheel and the second idler wheel are arranged in a plurality at intervals along the circumferential direction of the annular guide rail.
Further, the first rollers and the second rollers are arranged in a staggered mode.
Further, the stirring piece comprises a connecting ring which is positioned below the annular piece and is connected with the annular piece;
a bridging ring is arranged in the connecting ring, and the connecting ring is connected with the bridging ring through a horizontally arranged stirring bar; the stirring strips are uniformly arranged at intervals along the circumferential direction of the annular piece;
the connecting ring and the bridging ring are both arranged coaxially with the annular member.
Furthermore, the connecting ring is connected with the annular piece through vertical plates, and the vertical plates are uniformly arranged at intervals along the circumferential direction of the annular piece.
Furthermore, the air inlet cavity is internally provided with a ring plate and an air deflector which are sequentially arranged at intervals from top to bottom;
the air guide plate is arranged corresponding to the air guide hole in the middle of the annular plate; the air deflector is positioned right above the air inlet and shields the air inlet; and a gap for air flow to pass through is formed between the periphery of the air deflector and the side wall of the air inlet cavity.
Furthermore, the number of the fluidization plates is two, and the two fluidization plates are arranged at intervals from top to bottom.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a shaftless rotary coating device, which can enable powder in a coating cavity to be suspended uniformly. Thereby ensuring that the workpiece is evenly dipped and coated and the surface quality is good. Meanwhile, the device has the advantages of high reliability, dust resistance, light weight and the like.
Drawings
FIG. 1 is a schematic cross-sectional structural view of the present invention;
FIG. 2 is a schematic top view of the present invention (with the drive motor not shown);
reference numerals: 1-coating a barrel; 101-an air inlet; 102-a coating chamber; 103-an air inlet cavity; 2-a fluidization plate; 3-a ring-shaped member; 4-driving a motor; 5-an annular rack; 6-a gear; 7-a ring-shaped guide rail; 8-a first roller; 9-a second roller; 10-a connecting ring; 11-stirring bar; 12-a bridging ring; 13-a ring plate; 14-a wind deflector; 15-vertical plate.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the drawings.
As shown in the attached drawings, the shaftless rotary coating device comprises a coating barrel 1 with an opening at the top, wherein the bottom wall of the coating barrel 1 is provided with an air inlet 101, a horizontally arranged fluidization plate 2 is arranged in the coating barrel 1, and the fluidization plate 2 divides the inner cavity of the coating barrel 1 into a coating cavity 102 and an air inlet cavity 103; the coating chamber 102 is positioned above the gas inlet chamber 103; a ring-shaped part 3 which can rotate around the axis L of the ring-shaped part is arranged in the coating cavity 102; a stirring piece is connected below the annular piece 3; and a driving mechanism for driving the annular part 3 to rotate.
An air inlet 101 at the bottom of the coating barrel 1 is connected with an air compressor through an air pipe, and air flow generated by the air compressor enters an air inlet cavity 103 through the air inlet 101 and enters a coating cavity 102 through a fluidization plate 2. The fluidization plate 2 is a micro-perforated plate that enables a relatively uniform flow of gas into the coating chamber 102, as is known in the art. The powder is fed into the coating chamber 102 through a delivery pipe from an opening at the top of the coating tank 1. The air current that gets into in the coating chamber 102 makes the powder suspend in the coating chamber 102, and actuating mechanism drive loop forming element 3 rotates around its self axis L, and then drives stirring piece and rotate, through the stirring effect of stirring piece, makes the powder in the coating chamber 102 evenly suspend. The workpiece enters the coating cavity 102 through the top opening of the coating barrel 1, and the workpiece is dip-coated in the uniformly suspended powder, so that the surface quality is good.
The drive mechanism has various embodiments, for example, the drive mechanism may be a belt drive structure driven by a motor, or may be a chain drive structure driven by a motor. Preferably, the driving mechanism comprises a driving motor 4, and a gear 6 is mounted at the shaft extending end of the driving motor 4; the periphery of the annular piece 3 is provided with an annular rack 5 which is coaxially arranged with the annular piece; the gear 6 is meshed with the annular rack 5. The drive motor 4 may be mounted via a frame or via the coating tank 1. The driving motor 4 drives the gear 6 to rotate, and the gear 6 and the annular rack 5 drive the annular piece 3 to rotate around the axis L of the annular piece. The annular rack 5 may be fixed to the ring member 3 by welding or may be formed integrally with the ring member 3.
The coating machine can provide a guiding function for the rotation of the annular piece 3 through a sliding block and sliding groove structure in sliding fit, and preferably, an annular guide rail 7 which is coaxially arranged with the annular piece 3 is arranged on the inner side wall of the coating barrel 1; the ring-shaped part 3 is provided with a first roller 8 and a second roller 9 which are arranged at intervals up and down, the annular guide rail 7 is positioned between the first roller 8 and the second roller 9, and the first roller 8 and the second roller 9 are both in rolling fit with the annular guide rail 7; the first roller 8 and the second roller 9 are both provided with a plurality of rollers at intervals along the circumferential direction of the annular guide rail 7. The first roller 8 and the second roller 9 are located between the ring 3 and the coating tank 1. The annular guide rail 7 is arranged between the first roller 8 and the second roller 9 and plays a role in limiting the annular part 3. The first roller 8 and the second roller 9 are matched with the annular guide rail 7 in a rolling way, so that the annular part 3 is guided to rotate.
The first roller 8 may be located right above the second roller 9, and preferably, the first roller 8 and the second roller 9 are arranged in a staggered manner. Because the powder is easily attached to the first roller 8, the second roller 9 and the annular guide rail 7, the first roller 8 and the second roller 9 which are arranged in a staggered mode are not easily blocked by the attached powder, and the reliability of the device is improved.
The stirring member may be a horizontal plate-shaped structure with a plurality of through holes, and preferably, the stirring member includes a connecting ring 10 located below the annular member 3 and connected to the annular member 3; a bridging ring 12 is arranged in the connecting ring 10, and the connecting ring 10 is connected with the bridging ring 12 through a horizontally arranged stirring bar 11; the stirring strips 11 are uniformly arranged at intervals along the circumferential direction of the annular piece 3; the connecting ring 10 and the bridging ring 12 are both arranged coaxially with the annular member 3. The connecting ring 10, the bridging ring 12 and the stirring bar 11 have various connecting modes, and can be fixed by welding or connected by bolts. Both of the above embodiments achieve a stirring action on the powder.
The connection ring 10 may be directly connected to the annular member 3. Preferably, the connecting ring 10 is connected with the annular member 3 through a riser 15, and a plurality of risers 15 are uniformly arranged at intervals along the circumference of the annular member 3. The device weight is reduced while the processing space required by coating is ensured.
In order to further avoid the formation of concentrated air flow in the coating chamber 102, it is preferable that the air inlet chamber 103 is internally provided with a ring plate 13 and an air deflector 14 which are arranged at intervals from top to bottom; the air guide plate 14 is arranged corresponding to the air guide hole in the middle of the annular plate 13; the air deflector 14 is positioned right above the air inlet 101 and shields the air inlet 101; a gap for air flow to pass through is formed between the periphery of the air deflector 14 and the side wall of the air inlet cavity 103. The air deflector 14 and the bottom wall of the air inlet cavity 103 are spaced, air flow entering the air inlet cavity 103 from the air inlet 101 is dispersed along the lower surface of the air deflector 14 under the shielding effect of the air deflector 14 and continuously ascends through a gap between the periphery of the air deflector 14 and the side wall of the air inlet cavity 103, the annular plate 13 blocks further ascending of the air flow, the ascending air flow moves downwards, the two air flows are mixed, the kinetic energy of the two air flows is partially offset, the mixed air flow more softly escapes from an air guide hole in the middle of the annular plate 13 and continuously ascends, and the mixed air flow enters the coating cavity 102 through the fluidization plate 2. By arranging the annular plate 13 and the air deflector 14, the air flow entering the coating cavity 102 is softer and more uniform, and the formation of concentrated air flow in the coating cavity 102 is further effectively avoided.
As a further preference, two fluidization plates 2 are provided, and the two fluidization plates 2 are arranged at an interval from each other.
The foregoing is a detailed description of the present invention, and it can be seen that the present invention provides a shaftless spin coating apparatus for uniformly suspending powder within a coating chamber. Thereby ensuring that the workpiece is evenly dip-coated and has good surface quality. Meanwhile, the device has the advantages of high reliability, dust resistance, light weight and the like.
Claims (11)
1. The shaftless rotary coating device comprises a coating barrel (1) with an opening top, wherein an air inlet (101) is formed in the bottom wall of the coating barrel (1), a horizontally arranged fluidization plate (2) is arranged in the coating barrel (1), and the fluidization plate (2) divides the inner cavity of the coating barrel (1) into a coating cavity (102) and an air inlet cavity (103); the coating cavity (102) is positioned above the air inlet cavity (103); the method is characterized in that: a ring piece (3) which can rotate around the axis L of the ring piece is arranged in the coating cavity (102); a stirring piece is connected below the annular piece (3); the device also comprises a driving mechanism for driving the annular part (3) to rotate;
the driving mechanism comprises a driving motor (4), and a gear (6) is installed at the shaft extending end of the driving motor (4); the periphery of the annular piece (3) is provided with an annular rack (5) which is coaxially arranged with the annular piece; the gear (6) is meshed with the annular rack (5);
an annular guide rail (7) which is coaxial with the annular piece (3) is arranged on the inner side wall of the coating barrel (1);
the ring-shaped part (3) is provided with a first roller (8) and a second roller (9) which are arranged at intervals up and down, the annular guide rail (7) is positioned between the first roller (8) and the second roller (9), and the first roller (8) and the second roller (9) are in rolling fit with the annular guide rail (7);
the first idler wheel (8) and the second idler wheel (9) are arranged in a plurality at intervals along the circumferential direction of the annular guide rail (7).
2. The shaftless spin coating apparatus of claim 1, wherein: the first rollers (8) and the second rollers (9) are arranged in a staggered mode.
3. The shaftless spin coating apparatus of claim 1, wherein: the stirring piece comprises a connecting ring (10) which is positioned below the annular piece (3) and is connected with the annular piece (3);
a bridging ring (12) is arranged in the connecting ring (10), and the connecting ring (10) is connected with the bridging ring (12) through a horizontally arranged stirring bar (11); the stirring strips (11) are uniformly arranged at intervals along the circumferential direction of the annular piece (3);
the connecting ring (10) and the bridging ring (12) are arranged coaxially with the annular part (3).
4. The shaftless spin coating apparatus of claim 3, wherein: the connecting ring (10) is connected with the annular piece (3) through a vertical plate (15), and the vertical plates (15) are uniformly arranged at intervals along the circumferential direction of the annular piece (3).
5. The shaftless spin coating apparatus of claim 1, wherein: the air inlet cavity (103) is internally provided with a ring plate (13) and an air deflector (14) which are sequentially arranged from top to bottom at intervals;
the air guide plate (14) is arranged corresponding to the air guide hole in the middle of the annular plate (13); the air deflector (14) is positioned right above the air inlet (101) and shields the air inlet (101); and a gap for air flow to pass is formed between the periphery of the air deflector (14) and the side wall of the air inlet cavity (103).
6. The shaftless spin coating apparatus of claim 1, wherein: the two fluidization plates (2) are arranged at intervals from top to bottom.
7. The shaftless rotary coating device comprises a coating barrel (1) with an opening top, wherein an air inlet (101) is formed in the bottom wall of the coating barrel (1), a horizontally arranged fluidization plate (2) is arranged in the coating barrel (1), and the fluidization plate (2) divides the inner cavity of the coating barrel (1) into a coating cavity (102) and an air inlet cavity (103); the coating cavity (102) is positioned above the air inlet cavity (103); the method is characterized in that: a ring-shaped part (3) which can rotate around the axis L of the ring-shaped part is arranged in the coating cavity (102); a stirring piece is connected below the annular piece (3); the device also comprises a driving mechanism for driving the annular part (3) to rotate;
the driving mechanism comprises a driving motor (4), and a gear (6) is installed at the shaft extending end of the driving motor (4); the periphery of the annular piece (3) is provided with an annular rack (5) which is coaxially arranged with the annular piece; the gear (6) is meshed with the annular rack (5);
the ring-shaped piece (3) rotates through a sliding block and sliding groove structure which is arranged along the circumferential direction and is in sliding fit with the ring-shaped piece.
8. The shaftless spin coating apparatus of claim 7, wherein: the stirring piece comprises a connecting ring (10) which is positioned below the annular piece (3) and is connected with the annular piece (3);
a bridging ring (12) is arranged in the connecting ring (10), and the connecting ring (10) is connected with the bridging ring (12) through a horizontally arranged stirring bar (11); the stirring strips (11) are uniformly arranged at intervals along the circumferential direction of the annular piece (3);
the connecting ring (10) and the bridging ring (12) are arranged coaxially with the annular part (3).
9. The shaftless spin coating apparatus of claim 8, wherein: the connecting ring (10) is connected with the annular piece (3) through a vertical plate (15), and the vertical plates (15) are uniformly arranged at intervals along the circumferential direction of the annular piece (3).
10. The shaftless spin coating apparatus of claim 7, wherein: the air inlet cavity (103) is internally provided with a ring plate (13) and an air deflector (14) which are sequentially arranged at intervals from top to bottom;
the air guide plate (14) is arranged corresponding to the air guide hole in the middle of the annular plate (13); the air deflector (14) is positioned right above the air inlet (101) and shields the air inlet (101); and a gap for air flow to pass through is formed between the periphery of the air deflector (14) and the side wall of the air inlet cavity (103).
11. The shaftless spin coating apparatus of claim 7, wherein: the two fluidization plates (2) are arranged, and the two fluidization plates (2) are arranged at intervals from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111591874.5A CN114210522B (en) | 2021-12-23 | 2021-12-23 | Shaftless rotary coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111591874.5A CN114210522B (en) | 2021-12-23 | 2021-12-23 | Shaftless rotary coating device |
Publications (2)
| Publication Number | Publication Date |
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| CN114210522A CN114210522A (en) | 2022-03-22 |
| CN114210522B true CN114210522B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111591874.5A Active CN114210522B (en) | 2021-12-23 | 2021-12-23 | Shaftless rotary coating device |
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| CN (1) | CN114210522B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2738485A1 (en) * | 1977-08-26 | 1979-03-01 | Glatt Klimaanlagen | Fluid bed device - having rotating disc mounted above vibrating bed support for reaction and granulation especially in pharmaceuticals |
| CN1522172A (en) * | 2002-09-04 | 2004-08-18 | ��ʽ���籣��ʿ | Fluidized bed equipment |
| CN109579023A (en) * | 2019-01-17 | 2019-04-05 | 中赟国际工程有限公司 | A kind of drive mechanism of incinerator body |
| CN211463749U (en) * | 2019-11-29 | 2020-09-11 | 广东省机械研究所 | Hot coating device |
| CN213678237U (en) * | 2020-11-03 | 2021-07-13 | 巩义市恒科耐火材料有限公司 | Environment-friendly powdery material bin |
| CN214891229U (en) * | 2021-04-21 | 2021-11-26 | 神华福能（福建雁石）发电有限责任公司 | Sludge fluidized bed incinerator device |
-
2021
- 2021-12-23 CN CN202111591874.5A patent/CN114210522B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2738485A1 (en) * | 1977-08-26 | 1979-03-01 | Glatt Klimaanlagen | Fluid bed device - having rotating disc mounted above vibrating bed support for reaction and granulation especially in pharmaceuticals |
| CN1522172A (en) * | 2002-09-04 | 2004-08-18 | ��ʽ���籣��ʿ | Fluidized bed equipment |
| CN109579023A (en) * | 2019-01-17 | 2019-04-05 | 中赟国际工程有限公司 | A kind of drive mechanism of incinerator body |
| CN211463749U (en) * | 2019-11-29 | 2020-09-11 | 广东省机械研究所 | Hot coating device |
| CN213678237U (en) * | 2020-11-03 | 2021-07-13 | 巩义市恒科耐火材料有限公司 | Environment-friendly powdery material bin |
| CN214891229U (en) * | 2021-04-21 | 2021-11-26 | 神华福能（福建雁石）发电有限责任公司 | Sludge fluidized bed incinerator device |
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| CN114210522A (en) | 2022-03-22 |
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