CN210333132U

CN210333132U - SMC goods automatic spraying production line

Info

Publication number: CN210333132U
Application number: CN201920428956.XU
Authority: CN
Inventors: 庞健锋; 冯中魁
Original assignee: Guangdong Ruizhu Youka Technology Co Ltd
Current assignee: Foshan Junshun E Commerce Co ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-04-17
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses an automatic spraying production line of SMC products, which comprises a conveying line, and a feeding system, a preprocessing system, a spraying system, a drying system and a discharging system which are arranged on the conveying line in sequence; the pretreatment system comprises a sand blasting chamber, a cleaning chamber and a first waste gas treatment device connected with the sand blasting chamber and the cleaning chamber; the pretreatment system is used for removing oil stains on the surface of the SMC product; the spraying system comprises a spraying chamber, and a plurality of spraying stations are arranged in the spraying chamber; the spraying station is provided with a spraying device; the spraying chamber is externally provided with a second waste gas treatment device connected with the spraying chamber; the drying system comprises a high-temperature curing area and a normal-temperature cooling area, and the high-temperature curing area is connected with the second waste gas treatment device; and the normal temperature cooling area is connected with the blanking system. By adopting the embodiment of the utility model, the SMC product can be automatically decontaminated, sprayed and cured; the automatic control system has high automation degree and can greatly save the labor cost. SMC products processed by the spraying production line have high stability and high yield.

Description

SMC goods automatic spraying production line

Technical Field

The utility model relates to a spraying field especially relates to a SMC goods automatic spraying production line.

Background

SMC is an abbreviation of Sheet Molding Compound, and the material thereof is a glass fiber reinforced unsaturated polyester resin material. The insulating material has good electrical insulating property and excellent dielectric resistance; high flame retardance; good heat insulation and protection performance; good mechanical strength; the weather resistance is strong. Is widely applied to the fields of automobiles, architectural decoration and the like.

SMC products applied in the bathroom field have high requirements on appearance performance and often need to be subjected to paint spraying treatment. In the molding process of the SMC products, stearate release agents are often used for facilitating the release of the SMC products, so that the SMC products are very easily affected by dust, and the spraying effect is affected. In addition, the SMC product adopted by the prior bathroom system has a large specification, the width of the SMC product is between 0.8 and 2.1m, and the length of the SMC product is between 1.2 and 2.5 m; the overall weight is above 80kg, making manual handling difficult.

The existing SMC product generally adopts manual spraying, and the operation flow is as follows: firstly, the SMC chassis product is subjected to polishing pretreatment, then is cleaned, and after the product is dried, the surface coating is sprayed, and then the product is sent into an oven to be heated so as to accelerate the curing of the coating, so that the requirements of the spraying process can be met. However, this method is inefficient and susceptible to dust during the respective operation steps, resulting in a low yield of the coating.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an automatic spraying production line of SMC products, which can automatically complete the spraying of SMC products, and has high efficiency, energy saving and environmental protection; the spraying yield is high.

In order to solve the technical problem, the utility model provides an automatic spraying production line of SMC products, which is used for spraying the semi-finished SMC products after mould pressing; the device comprises a conveying line, and a feeding system, a pretreatment system, a spraying system, a drying system and a discharging system which are sequentially arranged on the conveying line;

the pretreatment system comprises a sand blasting chamber for removing the release agent on the surface of the molded SMC semi-finished product, a cleaning chamber for removing residual sand grains on the surface and a first waste gas treatment device connected with the sand blasting chamber and the cleaning chamber;

the spraying system comprises a spraying chamber, and a plurality of spraying stations are arranged in the spraying chamber; the spraying station is provided with a spraying device; a second waste gas treatment device connected with the spraying chamber is arranged outside the spraying chamber;

the drying system comprises a high-temperature curing area and a normal-temperature cooling area, and the high-temperature curing area is connected with the second waste gas treatment device; and the normal-temperature cooling area is connected with the blanking system.

As an improvement of the technical scheme, the spraying chamber is provided with a first side-turning mechanism, a spraying mechanism and a second side-turning mechanism which are connected in sequence;

the spraying mechanism comprises a sand blasting tank and a sand blasting mechanical hand connected with the sand blasting tank.

As an improvement of the above technical solution, the first exhaust gas treatment device comprises a first pipeline connected with the sand blasting chamber and the cleaning chamber; a first fan; the first recovery device is used for recovering sand grains in the exhaust gas of the pretreatment system, and the first dust removal device is used for removing dust from the exhaust gas of the first recovery device;

the conveying mechanism connects the sand blasting tank with the first recovery device;

and a compressed air device used for sweeping the surface of the SMC is arranged in the cleaning chamber.

As an improvement of the technical scheme, the spraying chamber comprises a first spraying station for spraying the primer, a second spraying station for spraying the pattern and a third spraying station for spraying the finish, the finish is selected from nano ceramic paint, and the finish, the pattern paint and the primer are all water-based paint.

As an improvement of the above technical solution, the spraying device comprises an online mixing device for mixing the coating, a spraying robot and a mounting rack; the online mixing device is connected with the spraying robot, and the spraying robot is installed on the installation frame.

As an improvement of the above technical solution, the second exhaust gas treatment device comprises a second pipeline connected with the spray chamber and the high-temperature curing area; a second fan; and the second recovery device is used for recovering the waste paint.

As an improvement of the above technical solution, the spraying device further comprises a pressure pump; the spraying robot is provided with a spray gun, and the pressure pump is connected with the spray gun through a pipeline so as to realize self-cleaning of the spray gun.

As an improvement of the above technical scheme, the second recycling device comprises a waste paint collector and a waste paint storage;

the waste gas collector is a cyclone dust collector.

As an improvement of the technical scheme, the blanking system comprises a truss manipulator and an AGV.

As an improvement of the technical scheme, the pretreatment system, the spraying system and the drying system are also provided with manual inspection stations.

Implement the utility model discloses, following beneficial effect has:

by adopting the embodiment, the SMC product can be automatically decontaminated, sprayed and cured; the whole set of spraying operation of the SMC product is completed, the automation degree is high, and the labor cost can be greatly saved. SMC products processed by the spraying production line have high stability and high yield. And simultaneously, the utility model discloses all set up waste paint processing apparatus at sandblast, the section of spraying paint, reduced the harm to the environment.

Drawings

FIG. 1 is a schematic structural view of an automatic SMC product spraying production line according to the present invention;

FIG. 2 is a schematic view of the structure of the coating chamber of the present invention;

FIG. 3 is a schematic diagram of the pretreatment system of the present invention;

fig. 4 is the structure schematic diagram of the manual inspection station conveyor of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

Referring to fig. 1, the embodiment provides an automatic SMC product spraying production line, which includes a conveying line 1, and a feeding system 2, a pretreatment system 3, a spraying system 4, a drying system 5 and a discharging system 6 which are sequentially arranged on the conveying line 1;

specifically, the pretreatment system 3 includes a blasting chamber 31, a cleaning chamber 32, and a first exhaust gas treatment device 33 connected to the blasting chamber 31 and the cleaning chamber 32; wherein, the sand blasting chamber 31 is used for removing the release agent on the surface of the SMC semi-finished product after mould pressing; the cleaning chamber is used for removing the residue of sand and dust on the surface of the SMC after sand blasting; the pretreatment system 3 can remove the release agent, form a good surface and enhance the adhesion of subsequent coatings.

The spraying system 4 comprises a spraying chamber 41, wherein a plurality of spraying stations 42 are arranged in the spraying chamber 41, and a spraying device 43 is arranged at each spraying station 42; a second waste gas treatment device 44 connected with the spraying chamber 41 is arranged outside the spraying chamber 41;

the drying system 5 comprises a high-temperature curing area 51 with the temperature of 100-150 ℃ and a normal-temperature cooling area 52, the high-temperature curing area 51 is connected with the second waste gas treatment device 44, and the normal-temperature cooling area 52 is connected with the blanking system 6; wherein the high temperature curing zone 51 is used for high temperature curing of the coating, and the normal temperature cooling zone 52 is used for cooling of the SMC product after spraying.

The SMC surface after compression molding has a large amount of release agent, and is easy to stain; and the SMC has smooth surface and weak binding force of the coating. Therefore, the utility model is provided with a full automatic production line for automatic decontamination, spraying, solidification, blanking and the like, which can greatly save the labor cost; and simultaneously, the utility model discloses still all set up the lacquer processing apparatus that gives up at sandblast, the section of spraying paint, reduced the harm to the environment.

Further, in order to improve the spraying yield and reduce the influence of a dust environment, the pretreatment system 3, the spraying system 4 and the conveying line 1 between the pretreatment system 3 and the spraying system 4 are provided with dustproof cover bodies 8; the cover body 8 is matched with the first waste gas treatment device 33 and the second waste gas treatment device 43, so that dust can be effectively prevented from falling to the surface of a workpiece to be sprayed, and the yield is improved.

Specifically, referring to fig. 2, in the present embodiment, a first side-tipping mechanism 34, a spraying mechanism 35 and a second side-tipping mechanism 36 are arranged in the blasting chamber 31; wherein, the first side-turning mechanism 34 comprises a conveyor belt 341, a hydraulic cylinder or a pneumatic cylinder 342 and a gear device 343; the first side-tipping mechanism 34 can tip the SMC semi-finished product and feed it to the spraying mechanism 35.

The spray mechanism 35 includes a sand blast tank 351 and a sand blast manipulator 352 connected to the sand blast tank 351; the sand particles are transported through the sand blasting tank 351 to the sand blasting robot 352 and are blasted by the sand blasting robot 352 to the surface of the semi-finished SMC product. Wherein, the sand adopts 50-150 mesh corundum powder, preferably 60-80 mesh corundum powder. The sand grains can form a good microstructure on the surface of the SMC, and the bonding force of the coating is improved. It is further preferred that the SMC semi-finished product has a surface roughness of 2-8 μm after sand blasting.

Preferably, the sandblasting manipulator 352 is obliquely arranged; the sand blasting manipulator 352 sprays sand grains to the surface of the inclined SMC semi-finished product, and the sand grains fall into the bottom sand blasting tank under the action of gravity after grinding is finished, so that the recovery of the sand grains is realized, and the process flow is simplified.

Specifically, referring to fig. 3, in the present embodiment, the first exhaust gas treatment device 33 includes a first pipe 331 connected to the blasting chamber 31 and the cleaning chamber 32; a first fan 332 connected to the first pipe 331; a first reclaimer 333 for reclaiming grit from the pretreatment system exhaust and a first dust collector 334 for dedusting the first reclaimer exhaust. Waste gas of the sand blasting chamber and the cleaning chamber is extracted by a first fan, enters a first recovery device from a first pipeline, is recovered with sand grains, then enters a dust removal device to remove dust with smaller grain size, and is discharged.

Wherein the first reclamation apparatus includes a grit collector 335 and a grit reservoir 336; the sand collector can adopt a cyclone dust collector as a first recovery device, has low cost and has good recovery effect on sand with larger grain size; but not limited thereto, any equipment capable of realizing sand recovery can be used as the first recovery device of the present invention. Correspondingly, the first dust removal device can adopt a bag-type dust remover, has simple structure, stable performance and high dust removal efficiency, and can effectively remove dust particles with smaller particle size; but not limited to this, any equipment that can realize the dust removal all can be used as the utility model discloses a first dust collector.

It should be noted that, here, the function of the exhaust gas treatment device 33 also includes providing a negative pressure environment, so that the sandblasting room and the clean room are maintained in a dust-free environment; the SMC surface remains clean, making the coating easily adherent.

In this embodiment, the sandblasting chamber 31 is further provided with a conveying mechanism 37, the conveying mechanism 37 is connected with the sandblasting tank 351 and the sand storage 336, the sand collected by the sand collector 335 enters the sand storage 336, and then is conveyed to the sandblasting tank 351 by the conveying mechanism 37, so as to realize the recycling of the sand. Specifically, the conveying mechanism 37 may be a screw feeder, an air chute, but is not limited thereto.

In this embodiment, the cleaning chamber 32 is provided with a compressed air device 38 for cleaning the surface of the SMC product, which blows away the sand particles remaining on the surface of the SMC product to be sprayed and also blows away a small amount of impurities attached to the surface. Preferably, the compressed air device 38 is an air knife, which is cleaned by compressed air with a pressure of 0.5 MPa.

In the present embodiment, the spraying chamber 41 is provided with a plurality of spraying positions 42 for spraying the SMC products in a plurality of ways; preferably, the spraying chamber 41 comprises a first spraying station for spraying a primer, a second spraying station for spraying a pattern and a third spraying station for spraying a finish, wherein the finish is a nano ceramic coating; and the finish paint, the pattern paint and the primer paint are all water-based paint. The SMC surface is subjected to primer spraying, pattern printing and nano resin finish spraying, so that an SMC product with a good decoration effect can be formed, and meanwhile, the nano resin finish has good weather resistance, beneficial luster and fullness, and has beneficial dirt resistance, high hardness and scraping resistance; can form good protection to the SMC surface pattern. Preferably, the spray booth 41 is provided with four spray stations 42 for four-pass spraying of the SMC articles.

Wherein the spraying device 43 includes an on-line mixing device for mixing the coating material, a spraying robot, and a mounting frame; the online mixing device is connected with a spraying robot, and the spraying robot is installed on the installation frame. Because the utility model discloses well SMC coating adopts water based paint, consequently need carry out the on-line mixing to prevent that spraying robot from blockking up.

Furthermore, in order to better prevent the spraying robot from being blocked, the spraying device is also provided with a pressure pump, the pressure pump is connected with a spray gun on the spraying robot through a pipeline, the pressure pump pressurizes, pressurized water can be adopted for circularly flushing the spray gun, the spray gun is effectively prevented from being blocked, and self-cleaning of the spray gun is realized.

In this embodiment, the second exhaust gas treatment device 44 includes a second pipe connected to the spray booth 41 and the high temperature curing zone 52, and a second fan connected to the second pipe; a second recovery device for recovering the waste paint and a second dust removal device for removing dust in the waste gas of the second recovery device.

The second recovery device comprises a waste paint collector and a waste paint storage; the waste paint collector can adopt a cyclone dust collector, the cyclone dust collector can effectively remove paint mist (the particle size of the paint mist is larger), and simultaneously, water vapor in the waste paint can be removed, so that the subsequent dust collector is prevented from being damaged; the waste paint collector in this embodiment is not limited to the cyclone dust collector, and any device capable of collecting waste paint may be used as the waste paint collector in this embodiment. Correspondingly, the second dust removal device can adopt a bag-type dust remover, has simple structure, stable performance and high dust removal efficiency, and can effectively remove dust particles with smaller particle size; but not limited thereto, any device capable of achieving dust removal may be used as the second dust removing device of the present embodiment.

In this embodiment, the drying system 5 is divided into two sections, namely a high temperature curing zone 51 and a normal temperature cooling zone 52; the high temperature curing zone 51 is an industrial oven and can be raised to the curing temperature of the coating paint, so that the paint film is well fixed on the surface of the SMC product; specifically, the temperature of the high-temperature section is 100-; because the utility model discloses a water based paint, its stoving time is shorter, has promoted holistic production efficiency. And the normal-temperature cooling area is arranged in an open mode, and the SMC product is cooled by blowing at normal temperature.

In this embodiment, unloading system 6 includes truss manipulator and AGV dolly, and the finished product of SMC goods can use truss manipulator to take off, places the AGV dolly, and the dolly transports the product and packs to next process, gets into the finished product storehouse.

In this embodiment, the loading system 2 comprises a truss robot 21 for gripping SMC products to be sprayed.

In order to further guarantee the yield of the spraying process in the embodiment, manual inspection stations 7 are further arranged between the pretreatment system and the spraying system, between the spraying system and the drying system, and between the drying system and the discharging system, so that the quality of pretreatment, spraying and curing can be manually monitored and corrected.

Specifically, referring to fig. 4, a movable conveyor 71 is provided at the manual inspection station, and includes a translation rail 72 and a carriage 73 provided at the bottom of the conveyor; if a problem is found by manual inspection, the conveyor can be moved out of the main production line through the translation rail 72, manually repaired on line or directly moved out of the production line.

The working principle and the steps of the scheme are explained in detail by combining the specific structure of the scheme as follows:

1. the SMC product to be sprayed is grabbed by a truss manipulator of the feeding system 2 and placed on the conveying line 1;

2. conveying the SMC product to be sprayed to a pretreatment system 3 by a conveying line 1; removing oil stains on the surface of the workpiece by sandblasting in the sandblasting room 31 through a sandblasting manipulator 35, then conveying the workpiece to the cleaning room 32, and cleaning dust and residual sand on the surface of the workpiece to be sprayed through compressed air sprayed by a compressed air device 37;

conveying the cleaned SMC product to a manual inspection station 7, inspecting the product by a worker, checking whether the product has defects and is cleaned up, and determining whether the spraying requirements of a spraying system can be met; the qualified products enter the next procedure, and the unqualified products are transported and repaired.

The waste gas and the waste sand generated by the sand blasting chamber 31 and the cleaning chamber 32 are extracted by a first fan, enter a first recovery device 333 through a first pipeline 331, recover sand grains in the waste gas, and are conveyed back to a sand blasting tank in the sand blasting chamber 31 for secondary utilization; the waste gas generated by the first recovery device 333 is discharged after being dedusted by the first dedusting device 334;

wherein, all be equipped with the cover body that is used for dustproof from the sandblast room to the manual work inspection station to prevent to form secondary pollution to the SMC surface.

3. Conveying the cleaned SMC product to a spraying system 4 by a conveying line 1; a plurality of spraying processes are respectively carried out in the spraying chamber 41; wherein, water paint is adopted for spraying; wherein, an online mixing device is adopted for mixing the coating, and then a spraying robot is used for spraying the mixed water-based coating on the surface of the SMC product;

simultaneously, the spraying device is also provided with a pressure pump, the pressure pump is connected with a spray gun on the spraying robot through a pipeline, and the spray gun can be circularly flushed by coating of the pressure pump, so that the blockage of the spray gun is effectively prevented.

And (3) conveying the sprayed SMC product to a manual inspection station 7, checking whether the product has a spraying defect after the spraying process, directly conveying the product to a drying system 5 if the product has no defect, and performing necessary treatment on the defect if the product has a curve.

4. Conveying the sprayed SMC product to a drying system 5 by a conveying line 1, curing the SMC product by an industrial oven in a high-temperature curing zone 51, then entering a normal-temperature cooling zone 52, and cooling the SMC product by normal-temperature air blowing;

wherein, the waste gas that spraying system 4 and high temperature curing district 51 produced is extracted through the second fan to carry to the second recovery unit through the second pipeline, moisture and the coating cloud that contain in the recoverable waste gas of second recovery unit, then pass through the second dust collector dust removal, harmless emission.

Conveying the cooled SMC product to a manual inspection station 7 for inspection, entering a blanking system if the cooled SMC product meets the standard, and returning to the repair if the cooled SMC product does not meet the standard;

5. and conveying the cooled SMC products to a blanking system 6 through a conveying line 1, taking down the SMC product finished products by adopting a truss manipulator, putting the SMC products into an AGV trolley, and entering the next process.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. An automatic spraying production line of SMC products is used for spraying semi-finished SMC products after mould pressing; the device is characterized by comprising a conveying line, and a feeding system, a pretreatment system, a spraying system, a drying system and a discharging system which are arranged on the conveying line in sequence;

2. An automatic SMC product spraying production line as in claim 1 wherein said spraying booth is provided with a first side-tipping mechanism, a spraying mechanism and a second side-tipping mechanism connected in series;

3. The SMC product automatic spraying production line of claim 2, wherein the first exhaust gas treatment device includes a first conduit connected to the blasting chamber, the cleaning chamber, a first fan, a conveying mechanism, a first recovery device for recovering sand particles from the pre-treatment system exhaust gas, and a first dust removal device for removing dust from the first recovery device exhaust gas;

4. The automatic spraying production line of SMC products of claim 1, wherein the spraying chamber comprises a first spraying station for spraying a primer, a second spraying station for spraying a pattern, and a third spraying station for spraying a finish, wherein the finish is selected from a nano ceramic coating, and the finish, the pattern coating and the primer are all water-based coatings.

5. An automatic SMC product spraying line as in claim 4 wherein said spraying means comprises an in-line mixing means for mixing the coating, a spraying robot and a mounting rack; the online mixing device is connected with the spraying robot, and the spraying robot is installed on the installation frame.

6. An automatic SMC product spraying production line as in claim 5 wherein said second exhaust gas treatment device comprises a second duct connected to said spraying chamber, high temperature curing zone; a second fan; and the second recovery device is used for recovering the waste paint.

7. An automatic SMC product spraying line as in claim 5 wherein said spraying means further comprises a pressure pump; the spraying robot is provided with a spray gun, and the pressure pump is connected with the spray gun through a pipeline so as to realize self-cleaning of the spray gun.

8. An automatic SMC product spraying production line as in claim 6 wherein said second recycling means comprises a waste paint collector and a waste paint reservoir;

the waste paint collector is a cyclone dust collector.

9. An automatic SMC product spraying production line as in claim 1 wherein said blanking system comprises a truss robot and an AGV cart.

10. An automatic SMC product spraying production line as in claim 1 wherein said pre-treatment system, spraying system, drying system are further provided with manual inspection stations.