CN112403746A - Spraying process method of multi-frame groove part - Google Patents
Spraying process method of multi-frame groove part Download PDFInfo
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- CN112403746A CN112403746A CN201910771414.7A CN201910771414A CN112403746A CN 112403746 A CN112403746 A CN 112403746A CN 201910771414 A CN201910771414 A CN 201910771414A CN 112403746 A CN112403746 A CN 112403746A
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- spraying
- gun
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- edge
- width
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0405—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads
- B05B13/041—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads with spray heads reciprocating along a straight line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
- B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
- B05B12/124—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to distance between spray apparatus and target
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a spraying process method of a multi-frame groove part, which comprises the following steps: dividing the multi-frame groove surface of the part into four spraying directions according to the edge surface; spraying the A surface of the seamed edge of the part, keeping the alpha angle of the nozzle of the spray gun, and spraying the part according to the path of the Chinese character 'bow'; the length of the spraying amplitude is 30-40 mm; the distance H from the nozzle of the spray gun to the part is 300-360 mm; the former gun overlaps 2/3 with the latter gun, where α is the sine angle of edge height L1 and slot width L2; respectively spraying other surfaces of the edges; spraying is carried out on the bottom surface, the spraying width length of 200-300 mm is selected, and the distance of 260-300 mm is perpendicular to the bottom surface of the part. The spraying amplitude uses a test piece to perform test spraying, and the length of the spraying amplitude is measured. The invention solves the problem of over-spraying or less-spraying at the corner between the edge and the bottom surface of the part, and improves the film thickness uniformity and the spraying quality; the automatic spraying device can be applied to the field of automatic spraying, one spraying program is used for one type of parts by classifying similar parts, the programming period of automatic spraying is shortened, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of spraying processes, and relates to a spraying method for improving spraying quality and film thickness uniformity of a multi-frame-groove part.
Background
For the spraying of the multi-frame groove part, the known spraying process method is as follows: in order to obtain uniform film thickness, the direction of the paint mist sprayed by the spray gun is always vertical to the coated surface during spraying. However, for the part shown in fig. 1, the direction of the spray from the gun cannot be kept perpendicular to the surface to be painted at the edge and at the root of the part. It is apparent that this known spray process method is not satisfactory for spraying the parts shown in fig. 1.
For the multi-frame groove part shown in fig. 1, the spraying method used at the present stage is as follows: firstly, spraying the edges and roots of the parts vertically as much as possible by using the spraying width length of 30-50 mm and the distance from a spraying gun opening of 150-300 mm to the parts, wherein the former gun and the latter gun are overlapped 1/2-2/3. Then spraying the part with the spraying width length of 180-220 mm and the distance from the nozzle of a spray gun of 150-300 mm to the part, wherein the spraying is perpendicular to the bottom surface of the part, and the front gun and the rear gun are overlapped 1/2-2/3. The method has high requirement on the skill level of operators, the condition of over-spraying or less-spraying exists at the corner between the edge and the bottom surface of the part, the uniformity of the film thickness is poor, and sagging is easy to generate.
Disclosure of Invention
In order to solve the problems of poor film thickness uniformity and easy sagging of a multi-frame groove part, the invention provides a spraying process method, which is used for spraying the edges and the bottom surface of the part in different modes respectively to ensure the uniformity and the quality of spraying.
The technical scheme of the invention is as follows:
a spraying process method of a multi-frame groove part comprises the following steps
S1, dividing the multi-frame groove surface of the part into four spraying directions of an A surface, a B surface, a C surface and a D surface according to the edge surface;
s2, spraying the part edge A surface, wherein during spraying, the nozzle of the spray gun keeps an alpha angle, and the spray gun sprays according to a bow-shaped path; the length of the spraying amplitude is 30-40 mm; the distance H from the nozzle of the spray gun to the part is 300-360 mm; the former gun overlaps 2/3 with the latter gun, where α is the sine angle of edge height L1 and slot width L2; the spray width is the size of the spray gun mouth sprayed on the spraying surface;
s3, respectively spraying the surfaces B, C and D of the edges according to the step S2;
s4, spraying the bottom surface, selecting a spraying width length of 200-300 mm, overlapping 1/2 the former gun and the latter gun, and spraying the bottom surface of the part with a distance from the nozzle of the 260-300 mm spraying gun to the part vertical to the bottom surface of the part.
In step S2, the gun movement distance L3 = part length L ÷ (number of edges n × edge height L1) + width length × overlapping portion).
The spraying amplitude uses a test piece to perform test spraying, and the length of the spraying amplitude is measured.
The method can be used for manual spraying, robot spraying and reciprocating machine spraying.
The invention has the beneficial effects that:
the spraying method of the invention has lower requirement on the manual skill level than the existing spraying method, solves the problem of over-spraying or less-spraying at the included angle between the edge and the bottom surface of the part, and avoids the sagging, the film thickness uniformity and the spraying quality improvement caused by over-spraying at the included angle between the edge and the bottom surface of the part.
The spraying method can be applied to the automatic spraying field of robot spraying, reciprocating machine spraying and the like, the similar parts are classified, one spraying program is used for one class of parts, the traditional spraying concept of one spraying program for one part is broken through, the programming period of automatic spraying is shortened, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of a multi-framed slot component;
FIG. 2 is a schematic view of spray parameters;
FIG. 3 is a schematic view of a spray path;
fig. 4 is a schematic view of a nozzle.
The specific implementation mode is as follows:
the invention will be further explained with reference to the drawings.
Example 1
A spraying process method for a multi-frame groove part comprises the following steps: s1, spraying the A surface of the part edge, as shown in figures 2 and 3, firstly determining the angle alpha of the paint mist flow direction, keeping the angle alpha of a spray gun mouth during spraying, and spraying by a spray gun along the bow-shaped path shown in figure 2. Wherein alpha is the sine angle between the edge height L1 and the groove width L2; the lance movement distance L3 = part length L ÷ (number of edges n × edge height L1) ÷ width length of jet width × overlapping); spray width = spray width of spray gun mouth spraying on edge with angle α (see fig. 3), spray width length is 30-40 mm; the distance H from the nozzle of the spray gun to the part is 300-360 mm; the former gun overlaps 2/3 with the latter gun.
S2, spraying the B, C, D surface of the edge by the method and parameters (see fig. 2 and 3).
S3, spraying the bottom surface, selecting a spraying width length of 200-300 mm, overlapping 1/2 the former gun and the latter gun, and spraying the bottom surface of the part with a distance from the nozzle of the 260-300 mm spraying gun to the part vertical to the bottom surface of the part.
Example 2
The invention relates to a spraying process method for a multi-frame groove part, which is carried out according to the following steps.
1. Cleaning of
Cleaning the part, dipping a white silk square towel in a diluent to clean the surface of the part, and wiping the surface of the part by a dry white silk square towel.
2. Determining the direction and angle of paint mist flow, regulating the length of spray amplitude, and spraying the edges
Determining the direction angle of paint mist flow according to the parts, using the angle to test and spray the test piece, measuring the length of the spraying amplitude, and if the length of the spraying amplitude is not within the range of 30-40 mm, adjusting the atomizing fan shape of the spray gun until the length of the spraying amplitude is 30-40 mm.
The spray gun sprays along the "bow" path shown in figure 2. As shown in FIG. 2, the paint mist flow direction angle is a sine angle formed by the edge height L1 and the groove width L2; the lance movement distance L3 = part length L ÷ (number of edges n × edge height L1) ÷ width length of jet width × overlapping); spray width = spray width of spray gun mouth spraying on edge with angle α (see fig. 3), spray width length is 30-40 mm; the distance H from the nozzle of the spray gun to the part is 300-360 mm; the overlap of the former gun with the latter gun is 2/3.
According to the above method, the spraying of all the edges is completed.
3. Regulating the length of the spray amplitude and spraying the bottom surface
Firstly, the nozzle of the spray gun is perpendicular to the test piece for trial spraying, the length of the spray amplitude is measured, and if the length of the spray amplitude is not within the range of 200-300 mm, the spray gun is adjusted to atomize a fan shape until the length of the spray amplitude is 200-300 mm. And then the nozzle of the spray gun is perpendicular to the bottom surface of the part for spraying. Wherein the overlap of the former gun and the latter gun is 1/2, and the distance from the nozzle of the spray gun to the part is 260-300 mm.
4. Curing
Curing is carried out according to relevant process standards.
Claims (3)
1. A spraying process method of a multi-frame groove part comprises the following steps
S1, dividing the multi-frame groove surface of the part into four spraying directions of an A surface, a B surface, a C surface and a D surface according to the edge surface;
s2, spraying the part edge A surface, wherein during spraying, the nozzle of the spray gun keeps an alpha angle, and the spray gun sprays according to a bow-shaped path; the length of the spraying amplitude is 30-40 mm; the distance H from the nozzle of the spray gun to the part is 300-360 mm; the former gun overlaps 2/3 with the latter gun, where α is the sine angle of edge height L1 and slot width L2; the spray width is the size of the spray gun mouth sprayed on the spraying surface;
s3, respectively spraying the surfaces B, C and D of the edges according to the step S2;
s4, spraying the bottom surface, selecting a spraying width length of 200-300 mm, overlapping 1/2 the former gun and the latter gun, and spraying the bottom surface of the part with a distance from the nozzle of the 260-300 mm spraying gun to the part vertical to the bottom surface of the part.
2. The method as claimed in claim 1, wherein in step S2, the gun moving distance L3 = part length L ÷ (number of edges n × height of edges L1) ÷ width length of width of spouting × overlapping portion.
3. The spraying process method of a multi-frame groove part as claimed in claim 1, wherein the spraying bar is used for test spraying by using a test piece, and the length of the spraying bar is measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910771414.7A CN112403746A (en) | 2019-08-21 | 2019-08-21 | Spraying process method of multi-frame groove part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910771414.7A CN112403746A (en) | 2019-08-21 | 2019-08-21 | Spraying process method of multi-frame groove part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112403746A true CN112403746A (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910771414.7A Pending CN112403746A (en) | 2019-08-21 | 2019-08-21 | Spraying process method of multi-frame groove part |
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| Country | Link |
|---|---|
| CN (1) | CN112403746A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385388A (en) * | 2021-06-23 | 2021-09-14 | 成都飞机工业（集团）有限责任公司 | Automatic flexible mixed line spraying method for aviation part robot |
| CN114100991A (en) * | 2021-11-25 | 2022-03-01 | 成都飞机工业（集团）有限责任公司 | Spraying method for large-scale multi-frame-groove workpiece |
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| CN103045987A (en) * | 2012-12-19 | 2013-04-17 | 四川成发航空科技股份有限公司 | Method for carrying out thermal spraying on profiles of narrow and deep groove with multiple spraying region surfaces |
| CN103722886A (en) * | 2013-12-25 | 2014-04-16 | 汤振华 | Surface airbrushing method and airbrushing head for stereoscopic object |
| CN104324861A (en) * | 2014-08-12 | 2015-02-04 | 清华大学 | Multi-parameter time-varying robot spraying method |
| CN107142443A (en) * | 2017-05-12 | 2017-09-08 | 中国航发北京航空材料研究院 | It is a kind of to have the method for blocking groove shape part bottom surface Velocity Oxygen Flame Sprayed Coatings |
| CN107262321A (en) * | 2017-06-30 | 2017-10-20 | 北京兴信易成机电工程有限公司 | A kind of spraying method and spray equipment for automatically generating spraying profile |
| CN109382285A (en) * | 2018-10-24 | 2019-02-26 | 绵阳飞远科技有限公司 | It can be improved the spraying method of uniformity |
-
2019
- 2019-08-21 CN CN201910771414.7A patent/CN112403746A/en active Pending
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| CN2592290Y (en) * | 2002-10-24 | 2003-12-17 | 沈隆秋 | Rotary applying apparatus |
| JP2004275989A (en) * | 2003-03-19 | 2004-10-07 | Sumitomo Precision Prod Co Ltd | Substrate processing apparatus |
| CN201552089U (en) * | 2009-07-01 | 2010-08-18 | 北京华泰天成科技发展有限公司 | Automatic spraying device |
| CN101912837A (en) * | 2010-09-09 | 2010-12-15 | 英利能源（中国）有限公司 | Spraying method of crucible used for ingot casting of photovoltaic cell |
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| CN103722886A (en) * | 2013-12-25 | 2014-04-16 | 汤振华 | Surface airbrushing method and airbrushing head for stereoscopic object |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385388A (en) * | 2021-06-23 | 2021-09-14 | 成都飞机工业（集团）有限责任公司 | Automatic flexible mixed line spraying method for aviation part robot |
| CN114100991A (en) * | 2021-11-25 | 2022-03-01 | 成都飞机工业（集团）有限责任公司 | Spraying method for large-scale multi-frame-groove workpiece |
| CN114100991B (en) * | 2021-11-25 | 2022-12-13 | 成都飞机工业（集团）有限责任公司 | Spraying method for large-scale multi-frame-groove workpiece |
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Application publication date: 20210226 |
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