CN111321446A - Flat type paint spraying process conveying line - Google Patents
Flat type paint spraying process conveying line Download PDFInfo
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- CN111321446A CN111321446A CN202010118293.9A CN202010118293A CN111321446A CN 111321446 A CN111321446 A CN 111321446A CN 202010118293 A CN202010118293 A CN 202010118293A CN 111321446 A CN111321446 A CN 111321446A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G35/00—Mechanical conveyors not otherwise provided for
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/20—Pretreatment
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention belongs to the technical field of conveying lines, and particularly relates to a flat type paint spraying process conveying line which comprises a workshop, wherein a pretreatment system, a coating system and an AJV trolley conveying system are arranged in the workshop. The pretreatment system comprises an aerial suspension type circulating line and a skid type conveying line. The wire body is sequentially provided with a workpiece feeding area, a degreasing area, a first water washing area, a surface adjusting area, a phosphating area, a second water washing area, a first pure water area, a cathode electrophoresis area, a first UF area, a second pure water area, a hot water boiler, a pure water device and an ultrafiltration device. The skid type conveying line is connected with the pure water second area, and a workpiece discharging area, an electrophoresis drying furnace and an electrophoresis strong cooling chamber are sequentially arranged on the skid type conveying line. The coating system comprises a glue spraying foaming area, a sealing glue drying area, a sealing glue forced cooling area and a spraying and drying integrated chamber, wherein a roller bed type conveying line is arranged at the bottom of the coating system, and a plurality of logistics channels are arranged in a factory building. The invention can automatically operate under severe conditions, reduces the labor intensity of workers and improves the working efficiency.
Description
Technical Field
The invention belongs to the technical field of conveying lines, and particularly relates to a flat type paint spraying process conveying line.
Background
The automobile industry is one of the pillar industries in the economic development of China, the demand of automobiles is steadily increasing, and the development of the automobile manufacturing industry is accelerated. The new material, the new process and the new technology are widely applied to automobiles, and the requirements on the performance and the appearance of the automobiles are higher and higher. Coating is the most economical and effective method for corrosion resistance and decoration of automobiles, and the quality of surface treatment (also called pretreatment) before coating is an important link which directly influences the service life and the decoration effect of a coating.
In the automobile industry, most of the existing paint spraying lines are manually pushed or vertical to a ground chain, and the line can be changed only through manual intervention at the line-to-line joint. The painting workshop is originally harsh in environment and manual intervention, so that the labor intensity of workers is increased, and the working efficiency is reduced.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides the flat paint spraying process conveying line which can ensure automatic normal operation under severe conditions, reduce the labor intensity of workers and improve the working efficiency.
The purpose of the invention is solved by the following technical scheme:
the utility model provides a level type paint spraying technology transfer chain which characterized in that: comprises a pretreatment system, a coating system and an AJV trolley conveying system for transferring products; the device also comprises a rectangular workshop for arranging the pretreatment system, the coating system and the AJV trolley conveying system, wherein the front part of the left side surface of the workshop is provided with a AJV trolley inlet, the rear part of the left side surface of the workshop is provided with a hollow sledge inlet, and the right side of the rear side surface of the workshop is provided with a AJV trolley outlet;
the pretreatment system comprises an empty suspended circulation line and a skid type conveying line; the air suspension type circulation line is longitudinally arranged on the left side of the factory building, the air suspension type circulation line is conveyed along the anticlockwise direction, an upper part area, a degreasing area, a first water washing area, a surface adjusting area, a phosphating area, a second water washing area, a first pure water area, a cathode electrophoresis area, a first UF area and a second pure water area are sequentially arranged on a right line body of the air suspension type circulation line from front to back, and a hot water boiler, a pure water device and an ultrafiltration device are arranged on the right side of the air suspension type circulation line; the skid type conveying line is transversely arranged at the rear side of the workshop, the left end of the skid type conveying line is connected with a pure water second area, and a workpiece discharging area, an electrophoresis drying furnace and an electrophoresis strong cooling chamber are sequentially arranged on the skid type conveying line from left to right;
the coating system comprises a glue spraying foaming area, a sealant drying area, a sealant forced cooling area and a spraying and drying integrated chamber; the glue spraying foaming area, the sealant drying area, the sealant forced cooling area and the spraying and drying integrated chamber are arranged in the middle of a factory building, a logistics channel is transversely arranged on the front side of the factory building, a logistics channel is longitudinally arranged on the right side of the factory building, a transversely arranged logistics channel is arranged between the coating system and the skid type conveying line, the glue spraying foaming area, the sealant drying area, the sealant forced cooling area and the spraying and drying integrated chamber are all connected with the logistics channel, and the two transversely arranged logistics channels are all connected with the longitudinally arranged logistics channel; and the bottoms of the glue spraying foaming area, the sealant drying area, the sealant forced cooling area and the spraying and drying integrated chamber are provided with rolling bed type conveying lines.
Based on the structure, the vehicle frame is continuously sprayed on an overhead suspension type circulating line to finish loading, degreasing, washing 1, surface adjustment, phosphating, washing 2, pure water 1, cathode electrophoresis, UF1 and pure water 2, the vehicle frame is unloaded to a skid type conveying line at the joint of the vehicle frame and the skid type conveying line, the vehicle frame passes through an electrophoresis drying furnace and an electrophoresis strong cooling chamber on the skid type conveying line to finish corresponding processes, the overhead suspension type circulating line returns no load to an upper loading area after unloading, the vehicle frame after the processes are finished on the skid type conveying line is automatically transferred to a coating system through a AJV trolley conveying system to finish the processes of spraying, foaming, sealing glue, drying, sealing glue strong cooling and spraying paint, and the vehicle frame is conveyed out of a workshop through a AJV trolley conveying system to be assembled in a general manner after all processes in the workshop are finished. In the working environment harmful to human bodies, the AJV trolley conveying system replaces manual transplanting, the labor intensity and potential safety hazards of workers are reduced, and the working efficiency is effectively improved.
Furthermore, the glue spraying foaming area, the sealant drying area, the sealant forced cooling area and the glue spraying and drying integrated chamber are longitudinally arranged, the sealant area is arranged on the front side of the glue spraying foaming area, the sealant drying area and the sealant forced cooling area are arranged on the right sides of the glue sealing area and the glue spraying foaming area in parallel, the sealant drying area is arranged on the front side of the sealant forced cooling area, and the glue spraying and drying integrated chamber is arranged on the right sides of the sealant drying area and the sealant forced cooling area in parallel; the sealing glue area front side, the sealing glue drying area front side and the spraying and drying integrated chamber front side are all connected with a logistics channel arranged on the front side of a factory building, and the spraying glue foaming area rear side, the sealing glue forced cooling area rear side and the spraying and drying integrated chamber rear side are all connected with a logistics channel arranged transversely between a coating system and a skid type conveying line.
Furthermore, two transversely arranged rain ditches are respectively arranged on the front side surface and the rear side surface of the plant.
Preferably, the aerial suspension type circulating line comprises a circulating rail arranged at the top of a factory building, a plurality of suspension brackets which can be driven by a driving mechanism to move along the circulating rail are arranged on the circulating rail, each suspension bracket comprises a lifting frame capable of lifting up and down, and a clamp capable of clamping a product is arranged at the bottom of each lifting frame.
Preferably, a pit is dug in the plant floor provided with the roller bed type conveying line, the roller bed type conveying line is embedded in the pit, and the conveying surface of the roller bed type conveying line is flush with the plant floor.
Preferably, the driving motor of the roller bed type conveying line is arranged at a position far away from the roller bed type conveying line body, and the roller bed type conveying line and the motor are connected through a coupler.
Preferably, a stainless steel partition plate for sealing the wire body is laid on the surface of the wire body of the roller bed type conveying wire.
Preferably, the stainless steel separator of the present invention has a thickness of 3 mm.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
1. the AJV trolley conveying system replaces manual transplanting, the whole line automatically runs, the labor intensity of workers is reduced, and the working efficiency is improved.
2. In order to solve the influence of severe environment on a production line, a coating system adopts a roller bed type conveying line, a pit is dug according to the height of the structure, the height of a line body is parallel and level to the ground, and the surface of the line body is totally closed through a stainless steel partition plate.
3. The motor is arranged at a place far away from the line body for isolation, and the power shaft is connected with the motor by a universal coupling, so that the normal and stable operation of the line body is ensured. A motor is matched at a single station for driving, so that powerful power is guaranteed, a workpiece is accurately positioned by using the induction element, the operation of workers is facilitated, the labor intensity is reduced, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic view of the overhead circulation line according to the present invention.
FIG. 3 is a schematic front view of a foaming chamber for spraying glue according to the present invention.
Fig. 4 is a schematic front view of the sealant drying chamber according to the present invention.
Fig. 5 is a schematic front view of the spraying and drying integrated chamber according to the present invention.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, a flat type paint spraying process transfer line includes a pretreatment system, a painting system, and an AJV cart transfer system 37 for transferring products. Still including one and being used for setting up pretreatment system, coating system and AJV dolly conveying system 37's rectangle factory building 1, factory building 1 left surface front portion is equipped with AJV dolly import 2, and factory building 1 left surface rear portion is equipped with empty sledge import 3, and AJV dolly export 4 has been seted up on factory building 1 trailing flank right side.
The pretreatment system comprises an empty suspended circulation line 5 and a skid type conveying line 6. The air suspension type circulating line 5 is longitudinally arranged on the left side of the factory building 1, the air suspension type circulating line 5 is conveyed anticlockwise, an upper part area 29, a degreasing area 7, a first water washing area 8, a surface adjusting area 9, a phosphating area 10, a second water washing area 11, a first pure water area 12, a cathode electrophoresis area 13, a first UF area 14 and a second pure water area 15 are sequentially arranged on a right line body of the air suspension type circulating line 5 from front to back, and a hot water boiler 16, a pure water device 17 and an ultrafiltration device 18 are arranged on the right side of the air suspension type circulating line 5. The skid type conveying line 6 is transversely provided with the rear side of the workshop 1, the left end of the skid type conveying line is connected with the pure water second area 15, and the skid type conveying line 6 is sequentially provided with a workpiece discharging area 19, an electrophoresis drying furnace 20 and an electrophoresis strong cooling chamber 21 from left to right.
The coating system comprises a glue spraying foaming area 22, a sealant area 23, a sealant drying area 24, a sealant forced cooling area 25 and a spraying and drying integrated chamber 26; the glue spraying foaming area 22, the sealant area 23, the sealant drying area 24, the sealant forced cooling area 25 and the spraying and drying integrated chamber 26 are arranged in the middle of the factory building 1, a logistics channel 27 is transversely arranged on the front side of the factory building 1, a logistics channel 27 is longitudinally arranged on the right side of the factory building 1, a transversely arranged logistics channel 27 is arranged between the coating system and the skid type conveying line 6, the glue spraying foaming area 22, the sealant area 23, the sealant drying area 24, the sealant forced cooling area 25 and the spraying and drying integrated chamber 26 are all connected with the logistics channel 27, and the two transversely arranged logistics channels 27 are all connected with the longitudinally arranged logistics channel 27; the bottoms of the glue spraying foaming area 22, the sealant area 23, the sealant drying area 24, the sealant forced cooling area 25 and the spraying and drying integrated chamber 26 are all provided with a roller bed type conveying line 28.
Based on the structure, the vehicle frame of the invention continuously sprays on the air suspension type circulating line 5 to finish the loading, degreasing, washing 1, surface adjustment, phosphating, washing 2, pure water 1, cathode electrophoresis, UF1 and pure water 2, the connection part of the trolley type conveying line 6 is unloaded to the trolley type conveying line 6, the frame passes through an electrophoresis drying furnace 20 and an electrophoresis strong cooling chamber 21 on the trolley type conveying line 6 and completes the corresponding working procedure, the aerial suspension type circulating line 5 returns no load to the upper loading area after unloading, the frame after the working procedure is finished on the skid type conveying line 6 is automatically transferred to a coating system through an AJV trolley conveying system 37 to finish the integrated working procedures of glue spraying foaming, sealant drying, sealant forced cooling and paint spraying drying, after all the processes in the plant 1 are completed, the frames are transported out of the plant 1 for final assembly by the truck transport system 37 of AJV. In the working environment harmful to human bodies, the AJV trolley conveying system 37 replaces manual transplanting, the labor intensity and potential safety hazards of workers are reduced, and the working efficiency is effectively improved.
The sealant spraying and foaming area 22, the sealant area 23, the sealant drying area 24, the sealant forced cooling area 25 and the sealant spraying and drying integrated chamber 26 are all longitudinally arranged, the sealant area 23 is arranged on the front side of the sealant spraying and foaming area 22, the sealant drying area 24 and the sealant forced cooling area 25 are arranged on the right sides of the sealant area 23 and the sealant spraying and foaming area 22 in parallel, the sealant drying area 24 is arranged on the front side of the sealant forced cooling area 25, and the sealant spraying and drying integrated chamber 26 is arranged on the right sides of the sealant drying area 24 and the sealant forced cooling area 25 in parallel; the front side of the sealing rubber area 23, the front side of the sealing rubber drying area 24 and the front side of the spraying and drying integrated chamber 26 are all connected with a logistics channel 27 arranged on the front side of the factory building 1, and the rear side of the spraying and foaming area 22, the rear side of the sealing rubber forced cooling area 25 and the rear side of the spraying and drying integrated chamber 26 are all connected with a logistics channel 27 transversely arranged between the coating system and the skid type conveying line 6.
Furthermore, the front side surface and the rear side surface of the factory building 1 are respectively provided with a rain ditch 30 which is transversely arranged.
Preferably, as shown in fig. 2, the overhead circulation line 5 comprises a circulation rail 31 disposed at the top of the factory building 1, a plurality of suspension frames 32 capable of being driven by a driving mechanism to move along the circulation rail 31 are disposed on the circulation rail 31, the suspension frames 32 comprise lifting frames 33 capable of lifting up and down, and clamps 34 capable of clamping products are disposed at the bottoms of the lifting frames 33.
Preferably, as shown in fig. 3-5, a pit 35 is dug on the ground of the plant 1 provided with the roller bed type conveyor line 28, the roller bed type conveyor line 28 is embedded in the pit 35, and the conveying surface of the roller bed type conveyor line 28 is flush with the ground of the plant 1. The driving motor of the roller bed type conveying line 28 is arranged at a position far away from the roller bed type conveying line 28, and the roller bed type conveying line 28 is connected with the motor through a coupler. And a stainless steel partition plate 36 for sealing the wire body is laid on the surface of the wire body of the roller bed type conveying line 28, and the thickness of the stainless steel partition plate 36 is 3 mm. In order to solve the influence of severe environment on the production line, the coating system adopts a roller bed type conveying line 28, a pit 35 is dug according to the height of the structure, the height of the line body is enabled to be flush with the ground, and the surface of the line body is fully sealed through a stainless steel partition plate 36. The motor is arranged at a place far away from the line body for isolation, and the power shaft is connected with the motor by a universal coupling, so that the normal and stable operation of the line body is ensured. A motor is matched at a single station for driving, so that powerful power is guaranteed, a workpiece is accurately positioned by using the induction element, the operation of workers is facilitated, the labor intensity is reduced, and the working efficiency is improved.
The working process of the invention is as follows: AJV the trolley transports the trolley frame from the trolley inlet 2 AJV to the upper part area 29, the crane 33 on the suspension bracket 32 in the upper part area 29 descends, the clamp 34 clamps the trolley frame to finish the upper part of the air suspension type circulation line 5, the trolley frame air suspension type circulation line 5 finishes degreasing, washing 1, surface adjustment, phosphorization, washing 2, pure water 1, cathode electrophoresis, UF1 and pure water 2, after the above procedures are finished, the trolley frame is placed on the air sledge in the lower part area 19 on the skid type conveying line 6 by the clamp 34, the trolley frame passes through the electrophoresis drying furnace 20 and the electrophoresis forced cooling chamber 21 on the skid type conveying line 6 to finish the corresponding procedures, and the air suspension type circulation line 5 returns to the upper part area after the lower part.
The purpose of the pretreatment before coating is to remove foreign matters such as oil stain and rust on the surface of a substrate, provide a clean surface suitable for coating, and remarkably improve the adhesive force and the corrosion resistance of a coating film. The purpose of the pretreatment before coating is to remove foreign matters such as oil stain and rust on the surface of a substrate, provide a clean surface suitable for coating, and remarkably improve the adhesive force and the corrosion resistance of a coating film. Therefore, how to control the pretreatment quality is the key point for stabilizing and improving the coating quality of the frame.
The frame after the working procedure is completed on the skid type conveying line 6 is automatically transferred to a coating system through the AJV trolley conveying system 37, the integrated working procedures of glue spraying foaming, sealant drying, sealant forced cooling and paint spraying drying are completed, manual transplanting is replaced by the AJV trolley conveying system 37 among all discontinuous working procedures, the whole line is automatically operated, the labor intensity of workers is reduced, and the working efficiency is improved. After all the processes in the plant 1 are completed, the frames are transported out of the plant 1 from the cart outlet 4 AJV by the cart transport system 37 of AJV for final assembly. The coating can protect automobiles from corrosion, and the coating film protection effect is greater and greater along with the appearance of novel materials, such as: high scratch resistance, elasticity, stain resistance, and the like. It also has the function of beautifying the appearance.
The invention effectively improves the coating process and the technical manufacturing level of the vehicle frame and ensures the coating quality of the vehicle frame by adopting scientific planning arrangement, reasonable and perfect process flow, advanced coating equipment and an automatic conveying system through the design of the vehicle frame coating workshop of the factory building 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides a level type paint spraying technology transfer chain which characterized in that: comprises a pretreatment system, a coating system and an AJV trolley conveying system for transferring products; the device also comprises a rectangular workshop for arranging the pretreatment system, the coating system and the AJV trolley conveying system, wherein the front part of the left side surface of the workshop is provided with a AJV trolley inlet, the rear part of the left side surface of the workshop is provided with a hollow sledge inlet, and the right side of the rear side surface of the workshop is provided with a AJV trolley outlet;
the pretreatment system comprises an empty suspended circulation line and a skid type conveying line; the air suspension type circulation line is longitudinally arranged on the left side of the factory building, the air suspension type circulation line is conveyed along the anticlockwise direction, an upper part area, a degreasing area, a first water washing area, a surface adjusting area, a phosphating area, a second water washing area, a first pure water area, a cathode electrophoresis area, a first UF area and a second pure water area are sequentially arranged on a right line body of the air suspension type circulation line from front to back, and a hot water boiler, a pure water device and an ultrafiltration device are arranged on the right side of the air suspension type circulation line; the skid type conveying line is transversely arranged at the rear side of the workshop, the left end of the skid type conveying line is connected with a pure water second area, and a workpiece discharging area, an electrophoresis drying furnace and an electrophoresis strong cooling chamber are sequentially arranged on the skid type conveying line from left to right;
the coating system comprises a glue spraying foaming area, a sealant drying area, a sealant forced cooling area and a spraying and drying integrated chamber; the glue spraying foaming area, the sealant drying area, the sealant forced cooling area and the spraying and drying integrated chamber are arranged in the middle of a factory building, a logistics channel is transversely arranged on the front side of the factory building, a logistics channel is longitudinally arranged on the right side of the factory building, a transversely arranged logistics channel is arranged between the coating system and the skid type conveying line, the glue spraying foaming area, the sealant drying area, the sealant forced cooling area and the spraying and drying integrated chamber are all connected with the logistics channel, and the two transversely arranged logistics channels are all connected with the longitudinally arranged logistics channel; and the bottoms of the glue spraying foaming area, the sealant drying area, the sealant forced cooling area and the spraying and drying integrated chamber are provided with rolling bed type conveying lines.
2. The flat type paint spraying process conveying line according to claim 1, characterized in that: the sealant spraying and foaming area, the sealant drying area, the sealant forced cooling area and the spraying and drying integrated chamber are all longitudinally arranged, the sealant area is arranged on the front side of the sealant spraying and foaming area, the sealant drying area and the sealant forced cooling area are arranged on the right sides of the sealant area and the sealant spraying and foaming area in parallel, the sealant drying area is arranged on the front side of the sealant forced cooling area, and the spraying and drying integrated chamber is arranged on the right sides of the sealant drying area and the sealant forced cooling area in parallel; the sealing glue area front side, the sealing glue drying area front side and the spraying and drying integrated chamber front side are all connected with a logistics channel arranged on the front side of a factory building, and the spraying glue foaming area rear side, the sealing glue forced cooling area rear side and the spraying and drying integrated chamber rear side are all connected with a logistics channel arranged transversely between a coating system and a skid type conveying line.
3. The flat type paint spray process conveying line according to claim 1 or 2, characterized in that: and the front side surface and the rear side surface of the factory building are respectively provided with a rainwater ditch which is transversely arranged.
4. The flat type paint spray process conveying line according to claim 1 or 2, characterized in that: the aerial suspension type circulating line comprises a circulating rail arranged at the top of a factory building, a plurality of suspension brackets which can be driven by a driving mechanism to move along the circulating rail are arranged on the circulating rail, each suspension bracket comprises a lifting frame capable of lifting up and down, and a clamp capable of being used for clamping products is arranged at the bottom of each lifting frame.
5. The flat type paint spray process conveying line according to claim 1 or 2, characterized in that: be equipped with the factory building of roller bed formula transfer chain is excavated on the ground and is equipped with the pit, roller bed formula transfer chain inlays to be established in the pit, roller bed formula transfer chain transport surface and factory building ground parallel and level.
6. The flat type paint spraying process conveying line according to claim 5, characterized in that: the driving motor of the roller bed type conveying line is arranged at a position far away from the roller bed type conveying line body, and the roller bed type conveying line and the motor are connected through a coupler.
7. The flat type paint spraying process conveying line according to claim 5, characterized in that: and a stainless steel partition plate for sealing the wire body is laid on the surface of the roller bed type conveying wire body.
8. The flat type paint spraying process conveying line according to claim 7, characterized in that: the thickness of the stainless steel separator is 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010118293.9A CN111321446A (en) | 2020-02-26 | 2020-02-26 | Flat type paint spraying process conveying line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010118293.9A CN111321446A (en) | 2020-02-26 | 2020-02-26 | Flat type paint spraying process conveying line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111321446A true CN111321446A (en) | 2020-06-23 |
Family
ID=71173043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010118293.9A Pending CN111321446A (en) | 2020-02-26 | 2020-02-26 | Flat type paint spraying process conveying line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111321446A (en) |
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2020
- 2020-02-26 CN CN202010118293.9A patent/CN111321446A/en active Pending
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