CN114769046B - Full-automatic paint spraying device for closed wheel set - Google Patents
Full-automatic paint spraying device for closed wheel set Download PDFInfo
- Publication number
- CN114769046B CN114769046B CN202210530180.9A CN202210530180A CN114769046B CN 114769046 B CN114769046 B CN 114769046B CN 202210530180 A CN202210530180 A CN 202210530180A CN 114769046 B CN114769046 B CN 114769046B
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- Prior art keywords
- wheel
- wheel set
- paint spraying
- closed
- drying
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- 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
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
-
- 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
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
- B05B15/555—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids discharged by cleaning nozzles
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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a set of closed wheel set full-automatic paint spraying device which comprises a wheel set jacking mechanism, an inclined guide rail wheel set conveying mechanism, a paint spraying and drying positioning clamping lifting mechanism, a wheel set rotating mechanism, a paint spraying system, a drying system, an electric control system, an air purifying system and a spray head automatic cleaning system. The jacking mechanism consists of a round rod, a hinge and a supporting plate, and takes an air cylinder as a driving force; the paint spraying and drying positioning, clamping and lifting mechanism is the same mechanism, and the hydraulic cylinder is used for driving the rolling shaft to move up and down so as to realize the functions of positioning, clamping and lifting of the wheel set; the wheel pair rotating mechanism realizes the action of the wheel pair rotation by utilizing the restoring force of the compression spring. Aims at solving the problems of poor paint spraying environment, low efficiency, low quality, high resource waste rate and low environmental protection performance existing in manual painting. The utility model discloses a device has automatic wheel, sprays paint, stoving, air purification and shower nozzle self-cleaning's function, and simple structure does benefit to the saving cost moreover.
Description
Technical Field
The invention relates to the technical field of wheel set paint brushing, in particular to a set of closed type wheel set full-automatic paint spraying device.
Background
The wheel set is an important supporting component of the railway vehicle bogie, and is easy to rust due to complex road surface working conditions during working. At present, after rust removal, flaw detection and repair of motor car wheel pairs, rust-proof varnish is sprayed on a shaft body, a shaft diameter and inner and outer spokes.
At present, the main mode of painting on the wheels of the motor vehicle, passenger vehicle, cargo vehicle and locomotive is manual painting, and the problems of manpower resource waste, low production efficiency, different quality, paint waste, air pollution and serious environmental pollution of the ground of the workshop exist.
In addition, there are a few patent schemes to carry out automatic paint spraying to the wheel pair, just conveying mechanism and wheel pair rotary mechanism and positioning mechanism all have the problem that the structure is complicated, the cost is higher.
In view of this, it is necessary to provide a closed wheel set full-automatic paint spraying apparatus with a simple structure and low cost.
Disclosure of Invention
The invention aims to provide a set of full-automatic paint spraying device for a closed wheel set, which has the functions of automatic wheel feeding, drying, paint spraying, air purification and automatic cleaning of a spray head, has a simple structure and low cost, and can efficiently finish paint spraying operation of the wheel set of the railway vehicle.
The technical scheme of the invention is as follows: the invention provides a set of closed wheel set full-automatic paint spraying device which comprises a wheel set jacking mechanism, an inclined guide rail wheel set conveying mechanism, a paint spraying and drying positioning clamping lifting mechanism, a wheel set rotating mechanism, a paint spraying system, a drying system, an electric control system, an air purifying system and a spray head automatic cleaning system. The wheel set jacking mechanism consists of a round rod, a hinge and a supporting seat, and is driven by an air cylinder to complete the lifting motion of the wheel set; the positioning, clamping and lifting mechanism is the same mechanism when the wheel set is sprayed with paint and dried, and consists of two rotating shafts, a hydraulic device, a rotating wheel and a supporting plate, and is driven by a hydraulic cylinder to finish the positioning, clamping and lifting effects on the wheel set; the wheel set rotating mechanism consists of a compression spring, a fixed plate and a rubber wheel, and the rotating action of the wheel set is realized by the restoring force of the compression spring during paint spraying and drying; the paint spraying system consists of a spray gun, a high-voltage electrostatic generator, a gas supply mechanism and a paint supply mechanism; the drying system is used for finishing the drying of the wheel set after the paint spraying by blowing hot air through the hot air blower; the paint spraying and drying of the wheel sets are carried out in different closed rooms, wherein each closed room comprises an automatic lifting door; the waste gas to be treated enters the dust removing pipeline through the induced draft fan and then enters the air purifying system, and the waste gas is discharged at high altitude after reaching the standard through treatment; the automatic cleaning system for the spray head consists of a paint supply pipe, a cleaning barrel, an electromagnetic valve, a spray gun, a gear pump and a pneumatic three-way valve.
The two symmetrical supporting seats (15), the two guide rail brackets (1), the air cylinder device (10), the four hydraulic devices (5), the paint spraying closed room (7) and the drying closed room (13) are all fixed on the working floor, and the equipment maintenance are facilitated.
The left ends of the two symmetrical round rods (3) are connected with the supporting seat (15) through the hinges (14), the top ends of the round rods (3) are in contact with the axle body (201) of the wheel pair, the right ends of the round rods (3) are connected with the pneumatic device (10) through the upper wheel supporting plate (11), ascending and conveying of the wheel pair are achieved, and the wheel pair conveys by means of self gravity, so that resources are saved.
The top of the supporting seat (15) is flush with the wheel pair pedal (202), so that the impact of the wheel pair (2) output from the round rod (3) to the guide rail bracket (1) by means of the gravity of the wheel pair is reduced.
The guide rail support (1) have certain inclination, guide rail support (1) afterbody is a wedge that inclination is big, and wheel (202) are rolling on guide rail support (1), wheel pair (2) are through self gravity transmission to spray paint and stoving station, are favorable to practicing thrift the cost.
The lower parts of the two pairs of rotating shafts (4) are corresponding to 4 hydraulic devices (5), one pair of rotating shafts (401) and one rotating shaft (402) are arranged in a paint spraying closed room (7), the other pair of rotating shafts (4) are arranged in a drying closed room (13), and the combination of the rotating shafts (401) and the rotating shafts (402) is the same as the combination of the other pair of rotating shafts (4), so that the wheel set can be positioned, clamped and lifted, and the paint spraying and drying of the wheel set can be realized.
The wheel pair rotating mechanism (8) consists of a compression spring (801), a fixed plate (802) and a rubber wheel (803), the wheel pair (2) is rotated by means of the restoring force of the compression spring (801), the rotating movement of the wheel pair is completed, and the wheel pair rotating mechanism is simple in structure and does not need an additional driving device.
The 3 spray guns (9) are uniformly fixed at the top end inside the spray paint closed room (7), and the 2 spray guns (9) are symmetrically distributed at the left end and the right end inside the spray paint closed room (7).
The drying system (16) and the paint spraying system (17) are fixed at the left ends of the drying closed room (13) and the paint spraying closed room (7);
the dust removing pipeline (12) is positioned at the upper ends of the paint spraying closed room (7) and the drying closed room (13), and waste gas enters the air purifying system (20) through the dust removing pipeline (12) and is discharged into the air after reaching the standard after being treated;
the automatic cleaning system (18) of the spray head is positioned at the right end of the spray-painting closed room (7) and is used for completing the automatic cleaning function of the spray head;
the wheel set lifting control device is characterized in that the pressure sensor is applied to wheel set lifting control, the pressure sensor is arranged on the round rod (3) and the rotating shaft (4), when the wheel set (2) touches the round rod (3) and the rotating shaft (4), the pressure sensor obtains an electric signal, and the electric signal is transmitted to the singlechip (or the PLC) through the detection circuit to analyze and control the working state of the hydraulic device (5) and the pneumatic device (10), so that the paint spraying of the wheel set is realized.
Compared with the prior art, the invention has the beneficial effects that: a set of closed wheel set full-automatic paint spraying apparatus, simple structure, the driving method is simple, has automatic wheel feeding, stoving, spray paint, air purification and shower nozzle self-cleaning's function, has solved extravagant, the production efficiency is low, the quality is different, polluted air and workshop ground environmental pollution serious problem and relatively low cost.
Drawings
Fig. 1 is a schematic structural view of a wheel set.
Fig. 2 is an axial side view of a set of closed wheel set full-automatic paint spraying device provided by the invention.
Fig. 3 is a top view of a set of closed wheel set full-automatic paint spraying device provided by the invention.
Fig. 4 is a schematic view showing a state of a round bar in a closed wheel set full-automatic paint spraying device according to the present invention.
Fig. 5 is a schematic view showing another state of the round bar in the full-automatic paint spraying device with a closed wheel set.
Fig. 6 is a schematic diagram of an operating state of a pair of rotating shafts in a set of closed-type wheel set full-automatic paint spraying device according to the present invention.
Fig. 7 is a schematic view showing another working state of a pair of rotating shafts in a set of closed type wheel set full-automatic paint spraying device provided by the invention.
Fig. 8 is a schematic connection diagram of the automatic cleaning system for the spray head in the full-automatic spray painting device for the closed wheel set.
In the figure: 1. a guide rail bracket; 2. a wheel set; 201. a shaft body; 202. a step of wheel treading; 203. a spoke; 3. a round bar; 4. a rotation shaft; 5. a hydraulic device; 6. a supporting plate; 7. a spray paint closed room; 8. a wheel set rotating mechanism; 801. a compression spring; 802. a fixing plate; 803. a rubber wheel; 9. a spray gun; 10. an air pressure device; 11. an upper wheel supporting plate; 12. a dust removal pipeline; 13. drying and sealing the room; 14. a hinge; 15. a support base; 16. a drying system; 17. a paint spraying system; 18. the automatic cleaning system of the spray head; 19. an electric control system; 20. an air purification system; 21. and (3) rotating the wheel.
Detailed description of the preferred embodiments
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 2 and 3, the present invention is a set of closed wheel set full-automatic paint spraying device, comprising: the spray painting device comprises a guide rail bracket (1), a wheel pair (2), a round rod (3), a rotating shaft (4), a hydraulic device (5), a supporting plate (6), a spray painting closed room (7), a wheel pair rotating mechanism (8), a spray gun (9), an air pressure device (10), an upper wheel supporting plate (11), a dust removing pipeline (12), a drying closed room (13), a hinge (14), a supporting seat (15), a drying system (16), a spray painting system (17), a spray head automatic cleaning system (18), an electric control system (19), an air purifying system (20) and a rotating wheel (21). The guide rail bracket (1), the hydraulic device (5), the paint spraying closed room (7), the air pressure device (10), the drying closed room (13) and the supporting seat (15) are all fixed on the working ground through fixing blocks. The round rod (3) is connected with the supporting seat (15) through the hinge joint (14), the upper ends of the hydraulic device (5) and the pneumatic device (10) are fixed on the supporting plate (6) and the upper wheel supporting plate (11), the rotating wheel (21) is connected with the rotating shaft (4) through a bearing, and the rotating shaft (4) is fixed on the supporting plate (6). The wheel pair rotating mechanism (8) is fixed at the top ends of the paint spraying closed room (7) and the drying closed room (13) through fixing blocks. The drying system (16) and the paint spraying system (17) are fixed at the left ends of the drying closed room (13) and the paint spraying closed room (7), and the automatic cleaning system (18) and the electric control system (19) are fixed at the right ends of the drying closed room (13) and the paint spraying closed room (7). One end of the dust removing pipeline (12) is connected with the paint spraying closed room (7) and the drying closed room (13) through an air outlet, and the other end is connected with the air purifying system (20).
The working principle and the working process of the closed wheel set full-automatic paint spraying device are as follows:
as shown in fig. 2 and 5, when the hydraulic device (5) works, the lifting force is transmitted to the round rod (3) through the upper wheel supporting plate (11), the round rod (3) drives the wheel set shaft body (201) to ascend, the wheel set (2) slides downwards by means of self gravity, ascending and conveying of the wheel set are completed, when the wheel set (2) rolls to the guide rail support (1), the hydraulic device returns, as shown in fig. 4, and then the next wheel set is jacked.
As shown in fig. 2, 6 and 7, when the wheel set (2) enters the paint spraying closed room (7), the lifting door of the paint spraying closed room (7) is closed, the rotating shaft (401) ascends under the action of the hydraulic device (5), when the wheel set (2) touches the rotating shaft (401), the rotating shaft (402) ascends, then the wheel set (2) ascends together with the rotating shaft (401), the wheel set (202) ascends to lift the rubber wheel (803) to compress the spring, the compression spring (801) resumes to drive the wheel set (202) to rotate, the paint spraying of the wheel set is realized, when the wheel set (2) sprays paint, the lifting door ascends, the wheel set rolls into the drying closed room (13) to be dried, and the positioning, clamping, ascending and rotating mechanisms of the wheel set (2) during drying are the same as those during paint spraying.
As shown in fig. 2, the wheel set (2) sleeved with the rubber sleeve rolls out from the inclined guide rail bracket (1) by self gravity after drying.
As shown in FIG. 8, the automatic cleaning system (18) for the spray head consists of a cleaning barrel, an electromagnetic control valve, a gear pump, a motor, a pneumatic three-way valve, a paint supply pipe and a spray gun.
Claims (6)
1. The utility model provides a full-automatic paint spraying apparatus of closed wheel pair, includes wheel pair climbing mechanism, oblique guide rail wheel pair conveying mechanism, sprays paint and stoving location clamp lifting mechanism, wheel pair rotary mechanism, paint spraying system, drying system, electrical system, air purification system, shower nozzle self-cleaning system, its characterized in that: one end of the upper wheel supporting plate (11) is in spiral connection with the air pressure device (10), the other end of the upper wheel supporting plate is in contact with the round rod (3), the upper wheel supporting plate (11), the air pressure device (10) and the round rod (3) form a wheel set jacking mechanism, and the air pressure device (10) is installed on the ground; the round rod (3) is connected with the supporting seat (15) through the hinge joint (14), the round rod (3) completes the conveying function of the wheel set (2), and the supporting seat (15) is fixed on the working ground; one end of the supporting plate (6) is connected with the hydraulic cylinder device (5), the other end of the supporting plate is connected with the rotating shaft (4), and the supporting plate (6), the hydraulic device (5), the rotating shaft (4) and the rotating wheel (21) form a wheel set positioning, clamping and lifting mechanism, so that the positioning function can be realized, and the clamping and lifting functions of the wheel set (2) can be realized; the compression spring (801), the fixed plate (802) and the rubber wheel (803) form a wheel pair rotating mechanism (8), and the wheel pair rotating mechanism (8) rotates the wheel pair (2) by means of the restoring force of the compression spring (801) to complete the rotating motion of the wheel pair (2); the spray gun (9) is fixed in the spray paint closed room (7), and the wheel rotating mechanism (8) is connected in the spray paint closed room (7); one end of the dust removing pipeline (12) is connected with the air outlet of the paint spraying closed room (7) and the drying closed room (13), and the other end is connected with the air purifying system (20); the drying system (16) and the paint spraying system (17) are both positioned on the left sides of the paint spraying closed room (7) and the drying closed room (13), and the automatic cleaning system (18) and the electric control system (19) of the spray nozzle are fixed on the right ends of the drying closed room (13) and the paint spraying closed room (7).
2. The full-automatic paint spraying device for the closed wheel set according to claim 1, wherein the left ends of two symmetrical round rods (3) are connected with a supporting seat (15) through hinges (14), the top ends of the round rods (3) are in contact with a wheel set shaft (201), and the lower ends of the round rods (3) are connected with an air pressure device (10) through an upper wheel supporting plate (11) to achieve lifting movement, so that lifting and conveying of the wheel set are achieved.
3. The full-automatic paint spraying device for the closed wheel set according to claim 1 is characterized in that the top of the supporting seat (15) is flush with the wheel set pedal (202), so that the impact of the wheel set (2) output from the round rod (3) to the guide rail bracket (1) by means of the gravity of the wheel set is reduced.
4. The full-automatic paint spraying device for the closed wheel set according to claim 1 is characterized in that the guide rail bracket (1) has a certain inclination angle, the tail part of the guide rail bracket is a wedge-shaped block with a large inclination angle, and the wheel pedal (202) rolls on the guide rail bracket (1) so as to be beneficial to conveying the wheel set (2) to a paint spraying and drying station through the gravity of the wheel set.
5. The full-automatic paint spraying device for the closed wheel set, as claimed in claim 1, is characterized in that 3 spray guns (9) are fixed at the top end inside the paint spraying closed room (7), and 2 spray guns (9) are symmetrically distributed at the left end and the right end inside the paint spraying closed room (7).
6. The full-automatic paint spraying device for the closed wheel set, as claimed in claim 1, is characterized in that the wheel set (2) is sleeved with a rubber sleeve, so that the wheel set (2) is prevented from being worn during conveying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530180.9A CN114769046B (en) | 2022-05-16 | 2022-05-16 | Full-automatic paint spraying device for closed wheel set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530180.9A CN114769046B (en) | 2022-05-16 | 2022-05-16 | Full-automatic paint spraying device for closed wheel set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114769046A CN114769046A (en) | 2022-07-22 |
| CN114769046B true CN114769046B (en) | 2023-07-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210530180.9A Active CN114769046B (en) | 2022-05-16 | 2022-05-16 | Full-automatic paint spraying device for closed wheel set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114769046B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204842039U (en) * | 2015-07-15 | 2015-12-09 | 嘉兴市亚杰金塑制品有限公司 | Automatic painting system that carries of tire |
| CN110328078A (en) * | 2019-07-22 | 2019-10-15 | 山西尚风科技股份有限公司 | A kind of environmental protection paint spray booth |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8567340B2 (en) * | 2009-08-12 | 2013-10-29 | Abbott Cardiovascular Systems Inc. | System and method for coating a medical device |
| CN104984855B (en) * | 2015-07-15 | 2017-10-17 | 嘉兴市亚杰金塑制品有限公司 | Tire auto spray painting drying system |
| CN105413338B (en) * | 2015-12-30 | 2017-03-08 | 海宁洁宇袋式除尘配件有限公司 | A kind of bag cage skeleton and its paint spraying system |
| CN113996479A (en) * | 2020-07-27 | 2022-02-01 | 齐齐哈尔四达铁路设备有限责任公司 | Paint spraying device for railway parts |
| CN111871642B (en) * | 2020-08-04 | 2022-03-15 | 淮南矿业(集团)有限责任公司 | Automatic wheel set painting device |
| CN214515481U (en) * | 2021-01-04 | 2021-10-29 | 齐齐哈尔四达铁路设备有限责任公司 | Robot paint spraying system |
-
2022
- 2022-05-16 CN CN202210530180.9A patent/CN114769046B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204842039U (en) * | 2015-07-15 | 2015-12-09 | 嘉兴市亚杰金塑制品有限公司 | Automatic painting system that carries of tire |
| CN110328078A (en) * | 2019-07-22 | 2019-10-15 | 山西尚风科技股份有限公司 | A kind of environmental protection paint spray booth |
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| Publication number | Publication date |
|---|---|
| CN114769046A (en) | 2022-07-22 |
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