CN115532554A - Bumper leather pattern shielding paint spraying process - Google Patents
Bumper leather pattern shielding paint spraying process Download PDFInfo
- Publication number
- CN115532554A CN115532554A CN202211321885.6A CN202211321885A CN115532554A CN 115532554 A CN115532554 A CN 115532554A CN 202211321885 A CN202211321885 A CN 202211321885A CN 115532554 A CN115532554 A CN 115532554A
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- CN
- China
- Prior art keywords
- product
- paint
- spraying
- shielding
- appearance
- 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
- 239000003973 paint Substances 0.000 title claims abstract description 54
- 238000005507 spraying Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000010985 leather Substances 0.000 title description 2
- 238000007689 inspection Methods 0.000 claims abstract description 21
- 238000001746 injection moulding Methods 0.000 claims abstract description 17
- 230000000873 masking effect Effects 0.000 claims abstract description 16
- 238000004806 packaging method and process Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 101710137710 Thioesterase 1/protease 1/lysophospholipase L1 Proteins 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000002966 varnish Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000036548 skin texture Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
- B05D1/322—Removable films used as masks
- B05D1/325—Masking layer made of peelable film
-
- 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
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a bumper dermatoglyph shielding paint spraying process, which comprises the following steps: the method comprises the following steps of raw material feeding inspection, injection molding, appearance inspection, product surface wiping, die slice pasting, masking tape pasting, product loading, flame treatment, paint spraying, paint baking, product unloading, masking film tearing, appearance inspection and packaging, and has the beneficial effects that: according to the invention, the design of parts is integrated, the design cost is reduced, only one set of manufacturing mold and injection molding equipment is provided, the equipment and tool investment is reduced, two appearance effects are realized on the appearance of the parts, and the appearance of the automobile exterior trim is more identifiable.
Description
Technical Field
The invention relates to the technical field of a masking paint spraying process for an automobile exterior texture part, in particular to a masking paint spraying process for a bumper skin texture part.
Background
With the continuous development of the automobile industry, the automobile model design is also changed day by day, and in order to meet the design requirements of some novel models of customers, the product manufacturing process technology also needs to be synchronously innovated and developed to research and develop some new processes, so that the difficulty that the original process cannot realize the model is overcome, and the model design of the customers has the feasibility of mass production.
Previously, the styling of automotive bumper skins has largely been divided into two broad categories:
firstly, adopt the integral type design, the part surface is done the texture or is sprayed paint. The disadvantage of this design is the single shape and the inability to achieve two different surface effects (texture, paint or otherwise) on the bumper skin.
Secondly, a split type design (namely, two parts) is adopted, the surface of one part is textured, the surface of the other part is painted, and finally the parts are assembled together. The disadvantage of this design is the need to increase manufacturing and quality control costs: the investment of 1 set of die and equipment is additionally added for injection molding and assembly production, the dimensional requirement of clearance surface difference is increased after two parts are assembled, and the quality control requirement of the geometric dimension of the parts is increased.
Disclosure of Invention
The invention aims to provide a bumper dermatoglyph shielding paint spraying process to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the bumper skin pattern shielding paint spraying process comprises the following steps: raw material feeding inspection, injection molding, appearance inspection, product surface wiping, die slicing, masking tape pasting, product loading, flame treatment, paint spraying, paint baking, product unloading, mask film tearing, appearance inspection and packaging;
(1) Raw material feeding inspection:
the material of the injection molding part is as follows: ABP-1010UVN of Shanghai Jinfa;
a shielding film: the single-side shielding film of the TESA has the width of 400mm and the length of 3400mm;
die-cutting into slices: 6 TESA4174+ PE replica film slices;
(2) Injection molding:
baking raw materials: the material drying temperature/time is 90 +/-5 ℃/2-4H;
injection molding: using special-grade plastic particles to injection mold a dermatoglyph part, wherein the temperature of a hot runner is 235 +/-20 ℃, and the injection pressure is 118bar;
flame treatment: flash burrs around the product are processed through flame of the robot, otherwise the pasting of the shielding film is influenced, and the appearance quality of shielding spraying is further influenced;
(3) And (3) appearance inspection: inspecting the appearance of the product, and judging whether defects such as flash, burr, welding line, cold material and the like influencing the shielding of the spraying appearance exist, wherein the illuminance is 950-18001ux;
(4) Wiping the surface of the product: the method comprises the following steps of wiping out lint, particle impurities and dust on the surface of a product so as to prevent the shielding film from falling off due to the influence on the adhesion performance of the shielding film;
(5) Sticking the die-cut sheet: marking positions as shown in the following figure 1, pasting 6 die-cut sheets imitating the shape of the product at the corners and the curved surfaces of the product, and using fireproof materials;
(6) Pasting a shielding adhesive tape: as shown in the filling position of fig. 2, a masking tool is used to assist an operator in adhering a masking tape, a texture area which does not need paint spraying and is outside a filling pattern is masked and covered, a part of area inside the filling pattern is exposed and painted, and a fireproof material is used;
(7) Loading a product: placing the product on a paint spraying tool, and entering a paint line for preparing spraying;
(8) Flame treatment: the product enters a pretreatment process to increase the surface dyne and the adhesive force of the product;
(9) Paint spraying: in a paint line, a robot is used for automatically spraying three layers of paint, namely primer, colored paint and varnish, on a product in sequence according to a program;
(10) Baking the paint: drying the paint on the product through baking equipment;
(11) The product is as follows: detaching the product from the spraying tool;
(12) Tearing off the shielding film: tearing off the shielding film and the 6 die-cut sheets around the product, and slowly and uniformly tearing off the shielding film during tearing so as to prevent the joint of the paint surface and the dermatoglyph surface from generating saw teeth and burrs;
(13) And (3) appearance inspection: the 6 areas where the die-cut pieces are adhered are mainly inspected, and if burrs exist or spraying is uneven, manual spraying is carried out for repairing;
(14) Packaging: and packaging the product by a packaging device.
Preferably, the temperature rising section of the hot air circulating temperature in the baking equipment is 80 +/-10 ℃, the heat preservation section is 85 +/-5 ℃, and the baking time is 35 +/-5 min.
Preferably, the coating air pressure when the robot sprays the paint is 0.7-0.8 Mpa, and the system backpressure is 3 +/-1 bar.
Preferably, the speed of the flame sprayed by the robot is 1-2 m/S, and the distance of the flame sprayed by the robot is 100-150 mm.
Preferably, the masking film and the die-cut sheet are both made of fireproof materials.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the parts are designed and integrated, the design cost is reduced, only one set of manufacturing mold and injection molding equipment is provided, the equipment and tool investment is reduced, two appearance effects are realized on the appearance of the parts, and the appearance of the automobile exterior trim is more recognizable.
Drawings
FIG. 1 is a schematic diagram showing the distribution structure of 6 die-cut sheets on a product according to the present invention;
FIG. 2 is a schematic view of the masking tape of the present invention applied to a product;
FIGS. 3-7 are schematic views of the structure of 6 die-cut sheets of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: the bumper skin pattern shielding paint spraying process comprises the following steps: raw material feeding inspection, injection molding, appearance inspection, product surface wiping, die slice pasting, masking tape pasting, product loading, flame treatment, paint spraying, paint baking, product unloading, masking film tearing, appearance inspection and packaging;
(1) Raw material feeding inspection:
the material of the injection molding part is as follows: ABP-1010UVN of Shanghai jin;
a shielding film: the TESA single-side shielding film is 400mm wide and 3400mm long and is made of a fireproof material;
die-cutting into slices: 6 TESA4174+ PE copying thin film slices which are made of fireproof materials;
(2) Injection molding:
baking raw materials: the material drying temperature/time is 90 +/-5 ℃/2-4H;
injection molding: using special-grade plastic particles to injection mold a dermatoglyph part, wherein the temperature of a hot runner is 235 +/-20 ℃, and the injection pressure is 118bar;
flame treatment: the flash burrs around the product are processed by the flame of the robot, otherwise, the sticking of a shielding film is influenced, and the appearance quality of shielding spraying is further influenced, the speed of spraying the flame of the robot is 1-2 m/S, and the distance of spraying the flame is 100-150 mm;
(3) And (3) appearance inspection: inspecting the appearance of the product, and judging whether defects such as flash burrs, weld lines, cold materials and the like influencing the shielding spraying appearance exist, wherein the illuminance is 950-1800lux;
(4) Wiping the surface of the product: the method comprises the following steps of wiping out lint, particle impurities and dust on the surface of a product so as to prevent the shielding film from falling off due to the influence on the adhesion performance of the shielding film;
(5) Sticking the die-cut sheet: marking positions as shown in the following figure 1, pasting 6 die-cut sheets imitating the shape of the product at the corners and the curved surfaces of the product, and using fireproof materials;
(6) Pasting a shielding adhesive tape: as shown in the filling position of fig. 2 below, a masking tool is used to assist an operator to paste a masking tape, mask and cover a texture area which does not need to be painted except for a filling pattern, expose and paint in a partial area inside the filling pattern, and use a fireproof material;
(7) Loading a product: placing the product on a paint spraying tool, and entering a paint line for preparing spraying;
(8) Flame treatment: the product enters a pretreatment process to increase the surface dyne and the adhesive force of the product;
(9) Paint spraying: in a paint line, a robot is used for automatically spraying three layers of paint, namely primer, colored paint and varnish, on a product according to a program, wherein the coating air pressure is 0.7-0.8 Mpa and the system backpressure is 3 +/-1 bar when the robot sprays the paint;
(10) Baking the paint: drying the paint on the product by baking equipment, wherein the temperature rising section of hot air circulation temperature in the baking equipment is 80 +/-10 ℃, the heat preservation section is 85 +/-5 ℃, and the baking time is 35 +/-5 min;
(11) The product is as follows: detaching the product from the spraying tool;
(12) Tearing off the shielding film: tearing off the shielding film and the 6 die-cut sheets around the product, and slowly and uniformly tearing off the shielding film during tearing so as to prevent the joint of the paint surface and the dermatoglyph surface from generating saw teeth and burrs;
(13) And (3) appearance inspection: the 6 areas where the die-cutting sheets are adhered are mainly inspected, and if burrs exist or spraying is uneven, manual spraying paint is carried out for repairing;
(14) And (3) packaging: and packaging the product by using a packaging device.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A bumper skin pattern shielding paint spraying process is characterized by comprising the following steps: raw material feeding inspection, injection molding, appearance inspection, product surface wiping, die slicing, masking tape pasting, product loading, flame treatment, paint spraying, paint baking, product unloading, mask film tearing, appearance inspection and packaging;
(1) Raw material feeding inspection:
the material of the injection molding part is as follows: ABP-1010UVN of Shanghai Jinfa;
a shielding film: the single-side shielding film of the TESA has the width of 400mm and the length of 3400mm;
die cutting into slices: 6 TESA4174+ PE replica film slices;
(2) Injection molding:
baking raw materials: the material drying temperature/time is 90 +/-5 ℃/2-4H;
injection molding: using special-grade plastic particles to perform injection molding on the dermatoglyph part, wherein the temperature of a hot runner is 235 +/-20 ℃, and the injection pressure is 118bar;
flame treatment: flash burrs around the product are processed through flame of the robot, otherwise the pasting of the shielding film is influenced, and the appearance quality of shielding spraying is further influenced;
(3) And (3) appearance inspection: inspecting the appearance of the product, and judging whether defects such as flash burrs, weld lines, cold materials and the like influencing the shielding spraying appearance exist, wherein the illuminance is 950-1800lux;
(4) Wiping the surface of the product: the method comprises the following steps of wiping out lint, particle impurities and dust on the surface of a product so as to prevent the shielding film from falling off due to the influence on the adhesion performance of the shielding film;
(5) Sticking the die-cut sheet: marking positions as shown in the following figure 1, pasting 6 die-cut sheets imitating the shape of the product at the corners and the curved surfaces of the product, and using fireproof materials;
(6) Pasting a shielding adhesive tape: as shown in the filling position of fig. 2, a masking tool is used to assist an operator in adhering a masking tape, a texture area which does not need paint spraying and is outside a filling pattern is masked and covered, a part of area inside the filling pattern is exposed and painted, and a fireproof material is used;
(7) Loading a product: placing the product on a paint spraying tool, and entering a paint line to prepare for spraying;
(8) Flame treatment: the product enters a pretreatment process to increase the surface dyne and the adhesive force of the product;
(9) Paint spraying: in a paint line, a robot is used for automatically spraying three layers of paint, namely primer, colored paint and varnish, on a product in sequence according to a program;
(10) Baking the paint: drying the paint on the product through baking equipment;
(11) The product is as follows: detaching the product from the spraying tool;
(12) Tearing off the shielding film: tearing off the shielding film and the 6 die-cut sheets around the product, and slowly and uniformly tearing off the shielding film during tearing so as to prevent the joint of the paint surface and the dermatoglyph surface from generating saw teeth and burrs;
(13) And (3) appearance inspection: the 6 areas where the die-cut pieces are adhered are mainly inspected, and if burrs exist or spraying is uneven, manual spraying is carried out for repairing;
(14) Packaging: and packaging the product by a packaging device.
2. The bumper dermatoglyph shielding spray process of claim 1, wherein: the temperature rise section of the hot air circulating temperature in the baking equipment is 80 +/-10 ℃, the heat preservation section is 85 +/-5 ℃, and the baking time is 35 +/-5 min.
3. The bumper dermatoglyph shielding spray process of claim 1, wherein: the coating air pressure of the robot during paint spraying is 0.7-0.8 Mpa, and the system back pressure is 3 +/-1 bar.
4. The bumper dermatoglyph shielding spray process of claim 1, wherein: the speed of the flame sprayed by the robot is 1-2 m/S, and the distance of the flame sprayed is 100-150 mm.
5. The bumper dermatoglyph shielding paint spraying process of claim 1, wherein: the shielding film and the die-cutting sheet are both made of fireproof materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211321885.6A CN115532554A (en) | 2022-10-26 | 2022-10-26 | Bumper leather pattern shielding paint spraying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211321885.6A CN115532554A (en) | 2022-10-26 | 2022-10-26 | Bumper leather pattern shielding paint spraying process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115532554A true CN115532554A (en) | 2022-12-30 |
Family
ID=84718568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211321885.6A Pending CN115532554A (en) | 2022-10-26 | 2022-10-26 | Bumper leather pattern shielding paint spraying process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115532554A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116727200A (en) * | 2023-05-11 | 2023-09-12 | 东风彼欧汽车外饰系统有限公司 | Radar support and shielding-free paint spraying process for surface radar area |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289393A (en) * | 2014-09-25 | 2015-01-21 | 柳州裕信方盛汽车饰件有限公司 | Automobile bumper bar tinting and spraying technology |
| CN110884079A (en) * | 2019-11-27 | 2020-03-17 | 江苏丞宇工业科技有限公司 | Production process of automobile bumper |
| CN112264279A (en) * | 2020-09-27 | 2021-01-26 | 中国第一汽车股份有限公司 | Flexible color register coating process for automobile body |
| CN114377924A (en) * | 2022-01-19 | 2022-04-22 | 一汽解放汽车有限公司 | Coating fire-proof shielding method and polypropylene member |
-
2022
- 2022-10-26 CN CN202211321885.6A patent/CN115532554A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289393A (en) * | 2014-09-25 | 2015-01-21 | 柳州裕信方盛汽车饰件有限公司 | Automobile bumper bar tinting and spraying technology |
| CN110884079A (en) * | 2019-11-27 | 2020-03-17 | 江苏丞宇工业科技有限公司 | Production process of automobile bumper |
| CN112264279A (en) * | 2020-09-27 | 2021-01-26 | 中国第一汽车股份有限公司 | Flexible color register coating process for automobile body |
| CN114377924A (en) * | 2022-01-19 | 2022-04-22 | 一汽解放汽车有限公司 | Coating fire-proof shielding method and polypropylene member |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116727200A (en) * | 2023-05-11 | 2023-09-12 | 东风彼欧汽车外饰系统有限公司 | Radar support and shielding-free paint spraying process for surface radar area |
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Application publication date: 20221230 |
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