CN113561071B - Intelligent surface treatment system and method for die-casting aluminum alloy - Google Patents
Intelligent surface treatment system and method for die-casting aluminum alloy Download PDFInfo
- Publication number
- CN113561071B CN113561071B CN202110868485.6A CN202110868485A CN113561071B CN 113561071 B CN113561071 B CN 113561071B CN 202110868485 A CN202110868485 A CN 202110868485A CN 113561071 B CN113561071 B CN 113561071B
- Authority
- CN
- China
- Prior art keywords
- sand
- workpiece
- sand blasting
- blasting
- information
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention belongs to the technical field of metal surface treatment, and particularly relates to an intelligent surface treatment system and method for die-casting aluminum alloy, which comprises the following steps: the device comprises a rack, a workpiece conveying mesh belt, a sand blasting pipe, a sand blasting plate, a sand blasting box, a rotating block, a rotating shaft, a motor for driving the rotating shaft to rotate, an image acquisition module, an image analysis module and a PLC (programmable logic controller). The image acquisition module acquires workpiece information, the image analysis module extracts the workpiece area according to the workpiece information, the image analysis module sends adjusting information to the PLC according to the comparison of the workpiece area and the sand blasting plate area, the PLC controls the motor to rotate reversely, the motor drives the rotating shaft to rotate with the rotating block, the rotating block drives the baffle to rotate, and the baffle blocks the first sand blasting nozzle, so that the sand blasting amount and the sand blasting area of the workpiece are changed. According to the scheme, the number of the sand blasting nozzles is changed by collecting the information of the workpiece, so that the sand blasting amount and the sand blasting area of the workpiece are changed, and the sand blasting effect of the workpiece is better; meanwhile, the sand material is saved, and the pressure of sand material recycling is reduced.
Description
Technical Field
The invention belongs to the technical field of metal surface treatment, and particularly relates to an intelligent surface treatment system and method for die-casting aluminum alloy.
Background
The aluminum alloy is an alloy which is based on aluminum and added with a certain amount of other alloying elements, is one of light metal materials, and the aluminum suitable for the die casting process is die casting aluminum, and is generally die casting aluminum alloy.
The sand blasting is a mechanical processing method for removing surface defects by spraying glass beads on the surface of an aluminum product by using purified compressed air, and has the following functions: removing burrs, casting slag and other defects and scales on the surface of the workpiece; the metal surface can be strengthened, the stress and the fatigue are reduced, and the mechanical property of the alloy is improved; the alloy surface can present uniform frosting effect and beautiful surface.
Application number is CN202011267301.2 discloses an aluminum alloy ex-trusions is sand blasting unit for surface treatment, including the sand blasting box, be equipped with the material export on the lateral wall of sand blasting box and on one side wall in addition, the material import of sand blasting box, be equipped with conveying mesh belt between the material export, the inherent conveying mesh belt top of sand blasting box is equipped with sand blasting unit, the below is equipped with iron rust separator, iron rust separator includes the magnetic separation section of thick bamboo of rotatory installation, the inherent material import of sand blasting box, the material exit end is equipped with two sets of oscillation devices, every group oscillation device all is including the vibration board that sets up in conveying mesh belt direction of transfer both sides, be equipped with the spring between the top in vibration board and the sand blasting box, be equipped with the oscillation push rod directly over the oscillation board, oscillation push rod even has the surge cylinder, even there is the vibration marble through the elastic cord in the vibration board bottom. The aforesaid can be when carrying out sand blasting to aluminium alloy ex-trusions, utilize rust separator to sand material and iron fillings synchronous separation, oscillation device plays the effect of supplementary oscillation unloading. Above-mentioned scheme is when carrying out the sandblast to the aluminum alloy, and when work piece area changed, sand blasting unit's sandblast volume is the same, and when work piece area was less, the sandblast volume was more, can cause the sandblast material extravagant and increase recycling system work load.
Disclosure of Invention
The scheme provides an intelligent surface treatment system and method for die-casting aluminum alloy, and the system and method can adjust the sand blasting amount.
In order to achieve the above object, the present scheme provides an intelligent surface treatment system for die-casting aluminum alloy, comprising: the device comprises a first frame, a workpiece conveying mesh belt, a sand blasting pipe, a sand blasting plate and a sand blasting box; a material inlet is formed in one side wall of the sand-blasting box, and a material outlet is formed in the other opposite side wall of the sand-blasting box; a workpiece conveying net belt is arranged between the material inlet and the material outlet of the sand-blasting box; the sand blasting plate is fixedly connected with the inner wall of the sand blasting box and is positioned above the workpiece conveying mesh belt; further comprising: the device comprises a rotating block, a rotating shaft, a motor for driving the rotating shaft to rotate, an image acquisition module, an image analysis module and a PLC (programmable logic controller); the image acquisition module is used for acquiring workpiece information and sending the workpiece information to the image analysis module; the image analysis module is used for receiving the workpiece information of the image acquisition module, extracting the workpiece area information, comparing the workpiece with the sand blasting plate area information stored in the image analysis module, generating adjustment information and sending the adjustment information to the PLC; the PLC is electrically connected with the motor; the motor is fixedly arranged at the top of the sand blasting box; the rotating shaft penetrates through the sand blasting box and is fixedly connected with the output shaft of the motor; the sand blasting plate is rotationally connected with the rotating block, and the rotating block is positioned on the outer side of the sand blasting plate; the rotating block is fixedly connected with the rotating shaft; the sand blasting plate is divided into an inner plate and an outer plate, a plurality of second through holes are formed in the inner plate, second sand blasting nozzles are installed in the second through holes, a plurality of first through holes are formed in the outer plate, and first sand blasting nozzles are installed in the first through holes; the first sand blasting nozzle and the second sand blasting nozzle are both communicated with a sand blasting pipe; the rotating block is provided with a plurality of baffles for opening and closing the first sand blasting nozzle, and the baffles are matched with the first sand blasting nozzle; one end of the first sand blasting nozzle, which is far away from the baffle, is provided with a pressure sensor, and the pressure sensor is electrically connected with the PLC; and the PLC controls the motor to be turned on according to the adjusting information, and then controls the motor to be turned off and the sand blasting pipe to be turned on according to the numerical value of the pressure sensor.
The principle of the scheme is as follows: the work piece conveying mesh belt conveys the work piece to the material exit from the material import of sandblasting case, image acquisition module gathers work piece information at this in-process, and send work piece information to image analysis module, image analysis module draws work piece information analysis and draws the work piece area, compare with the sandblast face area according to work piece area, when work piece board area is less than sandblast inboard plate area, image analysis module sends the regulation information to the PLC controller, the PLC controller control motor reversal, the motor drives the rotation axis and rotates with the rotating block, the rotating block drives the baffle and rotates, the baffle blocks first sandblast mouth, thereby change the sandblast volume and the sandblast area of work piece, after pressure sensor feels the numerical value on the first sandblast mouth, pressure sensor makes the PLC controller make the motor stall, open the sandblast pipe after adjusting and carry out the sandblast processing to the work piece.
The scheme has the beneficial effects that: the number of the sand blasting nozzles is changed by collecting the information of the workpiece, so that the sand blasting amount and the sand blasting area of the workpiece are changed, and the sand blasting effect of the workpiece is better; meanwhile, the sand material is saved, and the pressure of sand material recycling is reduced.
Furthermore, the sand blasting plate is provided with a positioning block, and a first magnet is arranged on the positioning block; and a second magnet is arranged on the baffle and mutually attracted with the first magnet. The baffle is fixed through the mutual attraction of the second magnet and the first magnet, so that when the sand blasting nozzle is prevented from blasting sand, the baffle rocks and blocks the first sand blasting nozzle to influence the sand blasting effect of a workpiece.
Furthermore, a rubber pad is arranged on the opposite surface of the second magnet and the first magnet, and the rubber pad is positioned at the edge of the second magnet. The rubber pad is positioned at the edge, so that the mutual attraction among the magnets cannot be influenced, and meanwhile, when the second magnet moves, the magnets are prevented from colliding with each other, and the damage is reduced; it is also possible to easily detach the magnets from each other.
Further, the baffle is detachably connected with the rotating block. After long-term use, the baffle damages easily under sand material impact, conveniently changes the baffle.
Furthermore, the sand blasting material is glass beads, and the diameter of the glass beads is not more than 5mm. The transparent and clear spherical product with the glass beads can be used without embedding particles into a workpiece, polluting the workpiece or generating other damages.
Furthermore, the device also comprises a limiting rod; a first groove is formed in the rotating shaft; the surface of the sand-blasting box is provided with a plurality of second grooves; one end of the limiting rod position is located in the first groove, and the other end of the limiting rod is located in the second groove. The limiting rod is used for limiting the rotating shaft to continue rotating and influencing the sand blasting effect.
Furthermore, a transparent glass window is arranged on the sand-blasting box. The processing state of the workpiece can be conveniently seen, and the sand blasting system can be conveniently adjusted, so that the sand blasting effect is better.
In order to achieve the above object, the present invention provides an intelligent surface treatment method for die-casting aluminum alloy, comprising: the method comprises the following steps: placing a workpiece on a workpiece conveying net belt, and starting the workpiece conveying net belt; step two: the image acquisition module acquires workpiece information and sends the workpiece information to the image analysis module; step three: the image analysis module acquires the workpiece information of the image acquisition module, analyzes the workpiece area information to obtain workpiece area information, compares the workpiece area information with the sand blasting block area information to obtain an adjusting signal, and sends the adjusting signal to the PLC; step four: the PLC controller controls the motor to rotate, and the motor rotates to drive the baffle plate to control the first sand blasting nozzle to be opened and closed; step five: and opening the sand blasting pipe to perform sand blasting processing on the workpiece.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a bottom view of the sand blast plate and the rotary block of embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of a passivation processing subsystem in embodiment 2 of the present invention.
FIG. 4 shows the surface morphology of the passivation film of the high-silicon die-cast aluminum alloy of example 2 of the present invention.
FIG. 5 is a cross-sectional view of the passivation film of FIG. 4 according to example 2 of the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a first rack 1, a workpiece conveying mesh belt 2, a sand blasting box 3, a sand blasting plate 4, a first sand blasting nozzle 5, a rotating block 6, a rotating shaft 7, a connecting frame 8, a supporting plate 9, a motor 10, a sand blasting pipe 11, a second sand blasting nozzle 12, a positioning block 13, a first magnet 14, a baffle 15, a second magnet 16, a processing table 17, a passivation liquid tank 18, a water tank 19, a flow control pipe 20, a first electric needle valve 21, a mixing pipe 22, a spray head 23, a humidity sensor 24, a zinc solution tank 25, an air cooler 26 and a second rack 27.
Example 1:
an intelligent surface treatment system for die-casting aluminum alloys, as shown in fig. 1, comprising: first frame 1, work piece conveying mesh belt 2, sand blasting pipe 11, sandblast board 4 and sand blasting box 3, be equipped with material import and be equipped with the material export on the relative other lateral wall on the sand blasting box 3 lateral wall, be equipped with work piece conveying mesh belt 2 between the material import of sand blasting box 3 and the material export, sand blasting box 3 bottom is equipped with the opening, sand blasting box 3 bottom is equipped with sealed piece, sealed piece is used for sealing the opening, sand blasting box 3 bottom can be used for collecting the sandblast material that drops from work piece conveying mesh belt 2 after processing the work piece, then separate sandblast material and impurity, cyclic utilization sandblast material. The sand blasting material is glass beads, and the diameter of the glass beads is not more than 5mm. The transparent and clear spherical product with the glass beads can be used without embedding particles into a workpiece, polluting the workpiece or generating other damages.
As shown in fig. 2, further comprising: the device comprises a rotating block 6, a rotating shaft 7, a motor 10 for driving the rotating shaft 7 to rotate, an image acquisition module, an image analysis module and a PLC (programmable logic controller). The top of the sand-blasting box 3 is welded with a supporting plate 9, the supporting plate 9 is in an inverted L shape, and the motor 10 is welded on the supporting plate 9. The motor 10 is a 16mm dc geared motor with a rated speed of 50-400 (rpm).
The output shaft of the motor 10 and the rotating shaft 7 are welded together through the connecting frame 8, and the rotating shaft 7 penetrates through the sand blasting box 3 and is welded together with the connecting frame 8. Sandblast board 4 rotates with rotatory piece 6 to be connected, and rotatory piece 6 is located the sandblast board 4 outsides, and rotatory piece 6 is in the same place with the welding of rotation axis 7, and rotation axis 7 quantity is two, and is more stable when can making rotatory piece 6 rotate.
The sand blasting plate 4 is welded with the inner wall of the sand blasting box 3 through a connecting block, and the sand blasting plate 4 is positioned above the workpiece conveying mesh belt 2. The sand blasting plate 4 is divided into an inner plate and an outer plate, the inner plate is provided with a plurality of 6 second through holes, the second through holes are respectively provided with a second sand blasting nozzle 12, the outer plate is provided with 12 first through holes, the first sand blasting nozzles 5 are respectively arranged at the first through holes, and the first sand blasting nozzles 5 and the second sand blasting nozzles 12 are respectively communicated with the sand blasting pipe 11; the rotating block 6 is provided with a plurality of baffles 15 for opening and closing the first sand blasting nozzle 5, and the baffles 15 are matched with the first sand blasting nozzle 5 in position. The baffle 15 is detachably connected to the rotary block 6. After long-term use, the baffle 15 is easy to damage under the impact of sand, and the baffle 15 is convenient to replace. The one end of baffle 15 is kept away from to first sand blasting nozzle 5 is equipped with pressure sensor, and pressure sensor passes through the bolt fastening on first sand blasting nozzle 5 surface, and pressure sensor is connected with the PLC controller electricity. The pressure sensor is a pressure sensor for a BF350-3AA strain gauge.
A positioning block 13 is welded on the sand-blasting plate 4, a first magnet 14 is welded on the positioning block 13, a second magnet 16 is welded on the baffle 15, and the second magnet 16 and the first magnet 14 attract each other. The baffle 15 is fixed through the mutual attraction of the second magnet 16 and the first magnet 14, so that when the sand blasting nozzle is prevented from blasting sand, the baffle 15 rocks to block the first sand blasting nozzle 5, and the sand blasting effect of a workpiece is influenced. The second magnet 16 is provided with a rubber pad opposite to the first magnet 14, and the rubber pad is positioned at the edge of the second magnet 16. The rubber pad is positioned at the edge, so that the mutual attraction among the magnets is not influenced, and meanwhile, when the second magnet 16 moves, the magnets are prevented from colliding with each other, and the damage is reduced; it is also possible to easily detach the magnets from each other.
The image acquisition module is used for acquiring workpiece information and sending the workpiece information to the image analysis module, and the HIKVISION network camera is adopted to photograph the construction site in the embodiment, the number of the network cameras is two, so that the construction site can be photographed at multiple angles, multi-directional information acquisition is carried out, the photo modeling is more accurate, and the acquired workpiece information is more accurate. The workpiece information is a workpiece photo.
The image analysis module is used for receiving the workpiece information of the image acquisition module, extracting the workpiece area information, comparing the workpiece with the area information of the sand blasting plate 4 stored in the image analysis module, generating adjustment information and sending the adjustment information to the PLC. The PLC controller is electrically connected with the motor 10, and the specific controller adopts a single chip microcomputer of stm32f103c8t 6. The PLC controller controls the motor 10 to rotate, one end, far away from the baffle 15, of the first sand blasting nozzle 5 is provided with a pressure sensor, and the pressure sensor is electrically connected with the PLC controller.
The work piece conveying mesh belt 2 conveys the work piece from the material import of the sand blasting box 3 to the material exit, the image acquisition module acquires the work piece information in the process, the image analysis module extracts the work piece information and analyzes and extracts the work piece area, according to the comparison between the work piece area and the sand blasting plate 4 area, the PLC controller controls the motor 10 to rotate reversely, the motor 10 drives the rotating shaft 7 and the rotating block 6 to rotate, the rotating block 6 drives the baffle plate 15 to rotate, and the baffle plate 15 blocks the first sand blasting nozzle 5, so that the sand blasting amount and the sand blasting area of the work piece are changed. The number of the sand blasting nozzles is changed by acquiring the information of the workpiece, so that the sand blasting amount and the sand blasting area of the workpiece are changed, and the sand blasting effect of the workpiece is better; meanwhile, the sand material is saved, and the pressure of sand material recycling is reduced.
The sand blasting box is characterized by further comprising a limiting rod, a first groove is formed in the rotating shaft 7, a plurality of second grooves are formed in the surface of the sand blasting box 3, one end of the limiting rod is located in the first groove, and the other end of the limiting rod is located in the second groove. The limiting rod is used for limiting the rotating shaft 7 to continue rotating and influencing the sand blasting effect.
The sand-blasting box 3 is provided with a transparent glass window. The processing state of the workpiece can be conveniently seen, and the sand blasting system can be conveniently adjusted, so that the sand blasting effect is better.
The scheme also provides an intelligent surface treatment method for the die-casting aluminum alloy, which comprises the following specific steps:
the method comprises the following steps: placing a workpiece on the workpiece conveying mesh belt 2, and starting the workpiece conveying mesh belt 2;
step two: the image acquisition module acquires workpiece information and sends the workpiece information to the image analysis module;
step three: the image analysis module acquires workpiece information of the image acquisition module, analyzes the workpiece information to obtain workpiece area information, compares the workpiece area information with the sand blasting block area information to obtain an adjusting signal, and sends the adjusting signal to the PLC;
step four: the PLC controller controls the motor 10 to rotate, and the motor 10 rotates to drive the baffle 15 to control the first sand blasting nozzle 5 to be opened and closed;
step five: and opening the sand blasting pipe 11 to perform sand blasting on the workpiece.
The operation method of the scheme comprises the following steps: work piece conveying mesh belt 2 conveys the work piece from the material import of sandblast case 3 to the material exit, image acquisition module gathers work piece information at this in-process, and send work piece information to image analysis module, image analysis module draws work piece information analysis and draws the work piece area, compare with 4 areas of sandblast board according to the work piece area, when work piece board area is less than 4 inner panel areas of sandblast board, image analysis module sends regulation information to the PLC controller, PLC controller control motor 10 reversal, motor 10 drives rotation axis 7 and rotatory piece 6 and rotates, rotatory piece 6 drives baffle 15 and rotates, first magnet 14 breaks away from with second magnet 16 under the effect of motor 10, when pressure sensor has numerical value, PLC control motor 10 stall, then operating personnel uses the gag lever post, make gag lever post one end be located first recess, the other end is located the second recess, prevent that baffle 15 from rocking the influence and block first sandblast mouth 5, influence the sandblast effect. The shutter 15 blocks the first blast nozzle 5, thereby changing the blast amount and the blast area of the workpiece. According to the scheme, the number of the sand blasting nozzles is changed by collecting the information of the workpiece, so that the sand blasting amount and the sand blasting area of the workpiece are changed, and the sand blasting effect of the workpiece is better; meanwhile, the sand material is saved, and the pressure of the sand material recycling is reduced; the sand blasting amount and the sand blasting area are automatically controlled, and the workload of workers is reduced.
Example 2:
the difference between this embodiment and embodiment 1 is that the aluminum die-casting alloy of this embodiment is a high-silicon aluminum die-casting alloy, and specifically includes: a passivating liquid tank 18 and a water tank 19, a processing table 17 is welded on the second frame 27, and a workpiece is placed on the processing table 17. The welding has the support on the second frame 27, and the support is located directly over the processing platform 17, is equipped with two standing grooves on the support, and the standing groove is used for placing passivation liquid case 18 and water tank 19, and passivation liquid case 18 is filled with the passivation stoste, when using, needs dilute the use to the passivation liquid stoste. The support is provided with a groove, a flow control pipe 20 and a mixing pipe 22 are installed in the groove, two ends of the flow control pipe 20 are respectively communicated with the passivation liquid tank 18 and the water tank 19, the communicated parts of the flow control pipe 20, the passivation liquid tank 18 and the water tank 19 are respectively provided with a first electric needle valve 21, and the first electric needle valves 21 are used for controlling the amount of passivation liquid or water. Flow control pipe 20 horizontal installation is in the recess, and flow control pipe 20 is the V-arrangement, and mixing tube 22 is vertical to be installed in the recess, can make things convenient for passivation liquid and water to carry out intensive mixing at mixing tube 22, does not need the (mixing) shaft etc. to stir. The mixing pipe 22 is communicated with a spray head 23, and the spray head 23 is used for spraying diluted passivation solution to the workpiece. A humidity sensor 24 is mounted on the second rack 27 through bolts, the Andorui WHD48-11 temperature and humidity sensor 24 is specifically adopted, a PLC is mounted on the second rack 27 through bolts, and the PLC and the humidity sensor 24 are electrically connected with the first electric needle valve 21. The humidity sensor 2410 is used for detecting the environmental humidity, the humidity sensor 24 is used for controlling the PLC to control the first electric needle valve 21, when the humidity sensor 2410 detects that the environmental humidity is smaller than a set value, the environment is dry at the moment, the PLC controls the first electric needle valve 21 to enlarge the section area, the passing water flow is enlarged, the dilution degree of passivation liquid is changed, the water content in mist liquid medicine is increased, and the liquid medicine is prevented from becoming semisolid influence when contacting the workpiece 3 by changing the water content in the water mist; when the humidity sensor 24 detects that the environmental humidity is greater than a set value, the environment is relatively wet at the moment, the PLC controller controls the first electric needle valve 21 to reduce the cross-sectional area, so that the passing water flow is reduced, the dilution degree of the passivation solution is changed, the water content in the vaporific liquid medicine is reduced, the waste liquid amount is reduced, and the work load of recycling the waste liquid is reduced.
And a zinc solution tank 25 is arranged on the second frame 27, the zinc solution tank 25 is communicated with the flow control pipe 20, a second electric needle valve is arranged at the communication position of the zinc solution tank 25 and the flow control pipe 20, and the second electric needle valve is electrically connected with the PLC. A timer is arranged on the second frame 27, and the PLC is electrically connected with the timer. The device also comprises an image recognition module, wherein the image recognition module is used for acquiring and recognizing the high-silicon die-casting aluminum alloy information and sending an adding signal to the PLC; the PLC receives the adding information and is used for controlling the opening of the timer and adjusting the second electric needle valve to add the zinc solution into the flow control pipe 20 according to the data of the timer, and after the second electric needle valve is opened for a set time, the PLC controls the timer to be reset and opens the air cooler 26 to dry the passivated high-silicon die-cast aluminum alloy.
The zinc solution tank 25 is placed in a groove on the support, and the groove limits the zinc solution tank 25. Zinc solution is zinc oxide solution, and zinc solution tank 25 bottom is equipped with the export, and the exit intercommunication has the interpolation pipeline, adds the other one end of pipeline and communicates with flow control pipe 20, and the second power needle valve of control zinc solution tank 25 is located zinc solution tank 25's opening part, prevents when not needing the interpolation zinc solution, and zinc solution remains in adding the pipeline, influences the zinc solution effect. The timer bolt is installed on the second frame 27, specifically adopts an HH series time controller, and has the specific specification of HH4-4RN. The specific model of the air cooler 26 is HAG-P30A-43. The image acquisition and identification module comprises a camera, a HIKVISION network camera is adopted, the image acquisition and identification module acquires a high-silicon die-cast aluminum alloy picture and judges whether a high-silicon die-cast aluminum alloy exists on the processing table 17 according to the stored high-silicon die-cast aluminum alloy picture and then sends information on whether a zinc solution is added to the PLC controller, the PLC controller controls to open a timer according to the information of the image acquisition and identification module, and adjusts a second electric needle valve to add a zinc solution to the flow control pipe 20 according to the data of the timer, the PLC controller closes the second electric needle valve after opening the second electric needle valve of the zinc solution tank 25 for a set time of 50S, and controls to clear the timer and open the air cooler 26 to dry the passivated high-silicon die-cast aluminum alloy, the distance between the air cooler 26 and the high-silicon die-cast aluminum alloy is 20cm-30cm, and the cold air of the air cooler 26 is controlled at 10-15 ℃.
After a zinc-containing solution is added into a high-silicon die-casting aluminum alloy passive film in a passivation stage, the surface of the passive film is as shown in figure 4, and criss-cross microcracks are randomly distributed on the surface of the film layer, and the specific reason is that the passivation stage can be basically divided into four stages, the dissolution of the aluminum alloy surface layer, the rapid growth of the film layer, the slow growth of the film layer and the growth and dissolution balance of the film layer, after the zinc oxide is added, because the metal activities of zinc and aluminum are similar and the hydroxide properties of zinc and aluminum are also similar, in the rapid growth stage of the film layer, zinc and aluminum can form a passive film (inner film) on the surface of a workpiece together with respective hydroxide/oxide, the stability of the passive film in the stage can be ensured, and after the zinc is consumed, the criss-cross microcracks can be formed on the surface of the passive film (outer film) due to the change of the composition of the passive film and the accumulation of internal stress; if the zinc-containing solution is not added in the passivation stage, microcracks formed on the surface of the film layer of the passivation film are less, and the subsequent painting treatment is inconvenient (namely, the film layer of the passivation film and the film layer of the paint film are not compact, and serious quality problems such as delamination and separation are easy to occur under severe use environments, such as sudden temperature change and the like).
This embodiment is after the passive film passivation (50S), dry rapidly, because the internal stress of the rete of the passive film that just forms still exists, the rete can produce tiny deformation (small shrink promptly) after being heated, adopt cold wind to carry out the rete drying, cold wind can remove the rete surface moisture, the rete is by cold contraction simultaneously, this kind of deformation (or shrink) can make the preceding depth increase of the microcrack that produces at passive film rete surface (promote the bonding strength of follow-up paint film and passive film), form this kind of crackle surface morphology, as shown in figure 5. Fig. 5 is a cross section of the passivation film shown in fig. 4, and it can be seen from fig. 5 that the inner layer structure of the passivation film is dense and has no cracking phenomenon, which indicates that microcracks only exist on the surface of the film layer and do not penetrate through the whole passivation film (which ensures the functionality of the passivation film). Therefore, even if a large number of cracks are present on the surface of the passivation film, the passivation film is intact, and the corrosion resistance thereof is not deteriorated by the presence of cracks.
In the passivation stage of the silicon die-casting aluminum alloy passivation filmZinc is added to promote the film forming reaction of the passive film by adding a zinc solution, H + Is greatly consumed to ensure that the reaction interface OH in the passivation process of the high-silicon die-casting aluminum alloy - The concentration is increased, a plurality of hydroxides deposit on the surface of the zinc layer to form a passive film, part of the hydroxides dehydrate to form oxides in the drying process of the film layer, so that the components in the outer passive film are more uniformly distributed, the hydroxide content is higher, the structure of the film layer is more compact, the film layer can play a good role of a barrier layer, the corrosion resistance of the high-silicon die-cast aluminum alloy is effectively improved, and meanwhile, an air cooler 26 which is 20cm-30cm away from a workpiece blows air at the temperature of 10-15 ℃ to enlarge microcracks formed on the surface of the passive film, improve the bonding force between the passive film and a paint film and improve the corrosion resistance of the high-silicon die-cast aluminum alloy.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. An intelligent surface treatment system for die cast aluminum alloys comprising: the device comprises a first frame (1), a workpiece conveying mesh belt (2), a sand blasting pipe (11), a sand blasting plate (4) and a sand blasting box (3); a material inlet is formed in one side wall of the sand-blasting box (3), and a material outlet is formed in the other opposite side wall; a workpiece conveying net belt (2) is arranged between the material inlet and the material outlet of the sand-blasting box (3); the sand-blasting plate (4) is fixedly connected with the inner wall of the sand-blasting box (3), and the sand-blasting plate (4) is positioned above the workpiece conveying mesh belt (2); it is characterized in that the preparation method is characterized in that,
further comprising: the device comprises a rotating block (6), a rotating shaft (7), a motor (10) for driving the rotating shaft (7) to rotate, an image acquisition module, an image analysis module and a PLC (programmable logic controller);
the image acquisition module is used for acquiring workpiece information and sending the workpiece information to the image analysis module; the image analysis module is used for receiving the workpiece information of the image acquisition module, extracting the workpiece area information, comparing the workpiece with the area information of the sand-blasting plate (4) stored in the image analysis module, generating adjustment information and sending the adjustment information to the PLC; the PLC is electrically connected with the motor (10);
the motor (10) is fixedly arranged at the top of the sand-blasting box (3); the rotating shaft (7) penetrates through the sand-blasting box (3) and is fixedly connected with an output shaft of the motor (10); the sand-blasting plate (4) is rotationally connected with the rotary blocks (6) and (13), and the rotary blocks (6) are positioned on the outer side of the sand-blasting plate (4); the rotating block (6) is fixedly connected with the rotating shaft (7); the sand blasting plate (4) is divided into an inner plate and an outer plate, a plurality of second through holes are formed in the inner plate, second sand blasting nozzles (12) are installed at the second through holes, a plurality of first through holes are formed in the outer plate, and first sand blasting nozzles (5) are installed at the first through holes; the first sand blasting nozzle (5) and the second sand blasting nozzle (12) are both communicated with the sand blasting pipe (11); the rotating block (6) is provided with a plurality of baffles (15) for opening and closing the first sand blasting nozzle (5), and the baffles (15) are matched with the first sand blasting nozzle (5); one end of the first sand blasting nozzle (5) far away from the baffle (15) is provided with a pressure sensor, and the pressure sensor is electrically connected with the PLC; the PLC controls the motor (10) to be turned on according to the adjusting information, and then controls the motor (10) to be turned off and the sand blasting pipe (11) to be turned on according to the numerical value of the pressure sensor;
the device also comprises a passivation treatment subsystem, wherein the passivation treatment subsystem comprises a passivation liquid tank (18), a second rack (27) and a water tank (19); a processing table is welded on the second frame (27), and a workpiece is placed on the processing table; the die-casting aluminum alloy is high-silicon die-casting aluminum alloy, the second frame (27) is welded with a bracket which is positioned right above the processing table, the bracket is provided with two placing grooves for placing the passivation liquid tank (18) and the water tank (19), the passivation liquid tank (18) is filled with passivation stock solution,
a groove is formed in the support, a flow control pipe (20) and a mixing pipe (22) are installed in the groove, two ends of the flow control pipe (20) are respectively communicated with the passivation liquid tank (18) and the water tank (19), a first electric needle valve (21) is arranged at the communication position of the flow control pipe (20) with the passivation liquid tank (18) and the water tank (19), and the first electric needle valve (21) is used for controlling the amount of passivation liquid or water;
the mixing pipe (22) is communicated with a spray head (23), and the spray head (23) is used for spraying diluted passivation solution to a workpiece;
a humidity sensor (24) is mounted on the second rack (27) through a bolt, a PLC is mounted on the second rack (27) through a bolt, and the PLC and the humidity sensor (24) are electrically connected with the first electric needle valve (21);
a zinc solution tank (25) is arranged on the second rack (27), the zinc solution tank (25) is communicated with the flow control pipe (20), a second electric needle valve is arranged at the communication position of the zinc solution tank (25) and the flow control pipe (20), and the second electric needle valve is electrically connected with the PLC;
and the PLC controller turns on an air cooler (26) to dry the passivated high-silicon die-casting aluminum alloy.
2. The intelligent surface treatment system for aluminum die cast alloys according to claim 1, wherein: the sand blasting plate (4) is provided with a positioning block (13), and the positioning block (13) is provided with a first magnet (14); and a second magnet (16) is arranged on the baffle (15), and the second magnet (16) and the first magnet (14) are mutually attracted.
3. The intelligent surface treatment system for die cast aluminum alloy of claim 2, wherein: and a rubber pad is arranged on the opposite surface of the second magnet (16) and the first magnet (14), and is positioned at the edge of the second magnet (16).
4. The intelligent surface treatment system for aluminum die cast alloys according to claim 1, wherein: the baffle (15) and the rotating block (6) are detachably connected.
5. The intelligent surface treatment system for aluminum die cast alloys according to claim 1, wherein: the device also comprises a limiting rod; a first groove is formed in the rotating shaft (7); the surface of the sand-blasting box (3) is provided with a plurality of second grooves; one end of the limiting rod position is located in the first groove, and the other end of the limiting rod is located in the second groove.
6. The intelligent surface treatment system for die cast aluminum alloy of claim 1, wherein: and a transparent glass window is arranged on the sand-blasting box (3).
7. The intelligent surface treatment method for the die-casting aluminum alloy comprises the following steps:
the method comprises the following steps: placing a workpiece on the workpiece conveying mesh belt (2), and starting the workpiece conveying mesh belt (2);
step two: the image acquisition module acquires workpiece information and sends the workpiece information to the image analysis module;
step three: the image analysis module acquires the workpiece information of the image acquisition module, analyzes the workpiece area information to obtain workpiece area information, compares the workpiece area information with the sand blasting block area information to obtain an adjusting signal, and sends the adjusting signal to the PLC;
step four: the PLC controller controls the motor (10) to rotate, and the motor (10) rotates to drive the baffle (15) to control the first sand blasting nozzle (5) to be opened and closed;
step five: opening a sand blasting pipe (11) to perform sand blasting on the workpiece;
the method is completed by the following devices:
the method comprises the following steps: the device comprises a first frame (1), a workpiece conveying mesh belt (2), a sand blasting pipe (11), a sand blasting plate (4) and a sand blasting box (3); a material inlet is formed in one side wall of the sand-blasting box (3), and a material outlet is formed in the other opposite side wall of the sand-blasting box; a workpiece conveying net belt (2) is arranged between the material inlet and the material outlet of the sand-blasting box (3); the sand-blasting plate (4) is fixedly connected with the inner wall of the sand-blasting box (3), and the sand-blasting plate (4) is positioned above the workpiece conveying mesh belt (2); it is characterized by also comprising: the device comprises a rotating block (6), a rotating shaft (7), a motor (10) for driving the rotating shaft (7) to rotate, an image acquisition module, an image analysis module and a PLC (programmable logic controller);
the image acquisition module is used for acquiring workpiece information and sending the workpiece information to the image analysis module; the image analysis module is used for receiving the workpiece information of the image acquisition module, extracting the workpiece area information, comparing the workpiece with the area information of the sand-blasting plate (4) stored in the image analysis module, generating adjustment information and sending the adjustment information to the PLC; the PLC is electrically connected with the motor (10);
the motor (10) is fixedly arranged at the top of the sand-blasting box (3); the rotating shaft (7) penetrates through the sand-blasting box (3) and is fixedly connected with an output shaft of the motor (10); the sand-blasting plate (4) is rotationally connected with the rotating block (6), and the rotating block (6) is positioned on the outer side of the sand-blasting plate (4); the rotating block (6) is fixedly connected with the rotating shaft (7); the sand blasting plate (4) is divided into an inner plate and an outer plate, a plurality of second through holes are formed in the inner plate, second sand blasting nozzles (12) are installed at the second through holes, a plurality of first through holes are formed in the outer plate, and first sand blasting nozzles (5) are installed at the first through holes; the first sand blasting nozzle (5) and the second sand blasting nozzle (12) are communicated with the sand blasting pipe (11); a plurality of baffles (15) used for opening and closing the first sand blasting nozzle (5) are arranged on the rotating block (6), and the baffles (15) are matched with the first sand blasting nozzle (5); one end of the first sand blasting nozzle (5) far away from the baffle (15) is provided with a pressure sensor, and the pressure sensor is electrically connected with the PLC;
and the PLC controls the motor (10) to be turned on according to the adjusting information, and then controls the motor (10) to be turned off and the sand blasting pipe (11) to be turned on according to the numerical value of the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110868485.6A CN113561071B (en) | 2021-07-30 | 2021-07-30 | Intelligent surface treatment system and method for die-casting aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110868485.6A CN113561071B (en) | 2021-07-30 | 2021-07-30 | Intelligent surface treatment system and method for die-casting aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113561071A CN113561071A (en) | 2021-10-29 |
| CN113561071B true CN113561071B (en) | 2022-12-02 |
Family
ID=78169269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110868485.6A Active CN113561071B (en) | 2021-07-30 | 2021-07-30 | Intelligent surface treatment system and method for die-casting aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113561071B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202011000737U1 (en) * | 2011-03-30 | 2012-07-04 | Paul Auer Gmbh | Closure device for an opening of a steel room |
| CN106363539B (en) * | 2016-08-31 | 2018-07-27 | 重庆广播电视大学 | A kind of automatic blasting processing system and method based on image recognition |
| CN208117598U (en) * | 2018-04-03 | 2018-11-20 | 东莞市详松自动化科技有限公司 | A kind of automation chain sand-blasting machine |
| CN109105077B (en) * | 2018-08-21 | 2020-12-08 | 安徽创显电子科技有限公司 | Movable water tank for watering greenhouse flowers |
| CN209717415U (en) * | 2019-04-21 | 2019-12-03 | 江西鸿格科技有限公司 | A kind of efficient sand-blasting machine |
| CN213164906U (en) * | 2020-08-14 | 2021-05-11 | 苏州利昇达电子科技有限公司 | Automatic sand blasting device for precision resistor production |
| CN112296886A (en) * | 2020-11-13 | 2021-02-02 | 天津实德新型建材科技有限公司 | Sand blasting unit for aluminum alloy profile surface treatment |
-
2021
- 2021-07-30 CN CN202110868485.6A patent/CN113561071B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113561071A (en) | 2021-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113561071B (en) | Intelligent surface treatment system and method for die-casting aluminum alloy | |
| CN108747838A (en) | A kind of adjustable shot-blasting machine | |
| CN213416725U (en) | Fibroin extraction element | |
| CN206940971U (en) | A kind of multi-functional galvanizing manipulator of the claw of multistation eight | |
| CN218133624U (en) | Aluminum alloy die-casting die belt cleaning device | |
| CN214009699U (en) | Cooling arrangement is used in production of acrylic acid emulsion | |
| CN209549043U (en) | Swing fog gun device and water mists jet stream dust suppression system | |
| CN104858408B (en) | Non-ferrous metal intelligence casting system | |
| CN106400055A (en) | Novel crust impact air cylinder | |
| CN207577423U (en) | A kind of cooling system of novel rare-earth metallurgy rotary hydrogen crushing furnace | |
| CN100560955C (en) | Be arranged at the carbon filtering cover in the two-stroke diesel-engine cylinder | |
| CN208928832U (en) | A kind of ecological disposal system of electrolytic manganese residues safety | |
| CN208326682U (en) | A kind of tekite sand charging conveying device | |
| CN105537161B (en) | A kind of all diesel engine cylinder head cleaning control devices | |
| CN206731679U (en) | A kind of automatic flushing device of iron screw | |
| CN210374547U (en) | External plate-turning type blanking device for spraying tower | |
| CN212759667U (en) | Auxiliary dust removal device for electrostatic powder coating production | |
| CN208968141U (en) | A kind of novel cooling device producing pearl sand | |
| CN210496136U (en) | Dust collecting equipment is used in production of silicon carbide composite ceramic micrite abrasive material | |
| CN220283849U (en) | Sewage treatment device for aluminum-titanium alloy production | |
| CN217067978U (en) | Filter equipment is used in epoxy cloud iron intermediate coat production that filtration efficiency is high | |
| CN212916104U (en) | Castable powder processing apparatus | |
| CN219628609U (en) | Henhouse wet curtain mist cooling device | |
| CN201834958U (en) | Copper recycling device for leftover material of copper-clad plate | |
| CN217190379U (en) | Environment-friendly spraying device for aluminum profile machining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |