CN105235127A - Production system for color bumper - Google Patents
Production system for color bumper Download PDFInfo
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- CN105235127A CN105235127A CN201510719156.XA CN201510719156A CN105235127A CN 105235127 A CN105235127 A CN 105235127A CN 201510719156 A CN201510719156 A CN 201510719156A CN 105235127 A CN105235127 A CN 105235127A
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- Prior art keywords
- plastic product
- control module
- spraying
- temperature
- control
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1753—Cleaning or purging, e.g. of the injection unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C2045/0077—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping removing burrs or flashes
Abstract
The invention discloses a production system for a color bumper. The production system comprises a first control module, a second control module, a third control module and a fourth control module. An injection molding machine is preheated through the modules, and plastic part raw materials are added to a material drying cylinder to be subjected to centralized drying and injection molding. A grabbed plastic part product is subjected to flame treating so that trimmings and burrs of the surface of the product can be removed, and a sprue is cut off automatically. Wiping and cleaning are conducted on the plastic part product, and the plastic part product is sent into a high-temperature cleaning room to be cleaned. The plastic part product is cleaned. The cleaned plastic part product is dried and sent into a drying room to be dried, then the plastic part product is subjected to flame treating, and dust removal is conducted in an ionized manner. Three painting processes are conducted for treatment. The system is high in production efficiency and high in production safety, and the qualification rate of the produced product is increased.
Description
Technical field
The present invention relates to automobile part production technique field, particularly a kind of colored bumper production system.
Background technology
In the manufacturing process of Hyundai Motor, the appearance of new production technique, constantly instead of old manufacture craft.Bumper is a pith of body of a motor car, and its outward appearance, performance and security have just had higher requirement.For adapting to the development of Hyundai Motor, its manufacture craft is constantly being innovated, and constantly breaks through, and bumper there has also been leaping of matter.But in existing bumper production technology, a lot of production stage all relies on manually, and automaticity is low, and production efficiency is low, and production security is poor.
Summary of the invention
It is high that technical problem to be solved by this invention is to provide a kind of production efficiency, and the production method of the high colored bumper of production security.
For solving the problems of the technologies described above, the invention provides a kind of colored bumper production system, comprising:
First control module, before injection molding, control to preheat injection machine, preheating time is 15min; Plastic raw material is added to dry in barrel carry out concentrating dry material time, controlling barrel temperature is 180 ~ 235 DEG C, and raw material drying temperature is 55-70 DEG C, and dries the material time and be greater than 2h; When being injected in injection machine by plastic raw material by charge pipe, control injection machine and start injection moulding, wherein, technological parameter is as follows: mold closing: mold surface temperature is 25 ~ 35 DEG C, and hot flow path temperature is 245 ~ 255 DEG C, controls the temperature everywhere of injection machine; Raw material preformed parameter: screw speed is 45 ~ 65 turns/min; Raw material injection moulding speed is 34 ~ 36mm/s; Injection pressure is 150-200bar; Injection time is 8 ~ 11sec; Dwell pressure: 45bar, the dwell time is 3 ~ 7sec; Cooling: cool time is 10 ~ 16sec;
Second control module, control the plastic product that mechanical gripper crawl injection moulding completes, and control flame processing apparatus to capture plastic product carry out flame treatment to remove overlap, the burr of product surface, control mechanical automatic gate cutting equipment and automatic desprucing carried out to plastic product;
3rd control module, in HIGH TEMPERATURE PURGE room, controls 5 tanks and cleans plastic product, wherein,
One # tank: control water temperature range: 55 ~ 60 DEG C, washing time: 60 ~ 180s, total alkali concn: 5 ~ 15mg/l, electrical conductivity: 1000 ~ 1800us/cm, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar;
Two # tanks: control water temperature range: 50 ~ 55 DEG C, washing time: > 30s, conductivity range: 100 ~ 500us/cm, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar;
Three # tanks: control water temperature range: 20 ~ 45 DEG C, washing time: > 30s, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar;
Four # tanks: control water temperature range: 15 ~ 40 DEG C, washing time: > 30s, conductivity range :≤75us/cm, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar, discharge scope: > 400L/H;
Five # tanks: control conductivity range :≤35us/cm, water temperature range: 15 ~ 30 DEG C, washing time: > 30s, spray pump hydraulic pressure: 1.2 ~ 1.7bar, discharge scope: > 750L/H, bag filter pressure reduction: 0.2 ~ 0.4bar;
4th control module, dries the plastic product after cleaning, and sends into drying shed and carry out drying process, then carries out flame treatment to plastic product, and the plastic product after flame treatment is sent into ionize between dedusting and carry out ionization dedusting; In the spray room closed, control spray robot plastic product is carried out three road painting process process, wherein, first operation is basecoat paint, adopt aerial spraying: spray room temperature: 22 ~ 28 DEG C, spray room humidity: 60 ~ 70%, spray time: 50-60s, quantity for spray: priming paint 300cc/min; After spraying, carry out levelling process, it is cold by force then to carry out priming paint oven dry, priming paint, and priming paint bake out temperature continues more than 15min at 80 ~ 90 DEG C, and the strong cold temperature of priming paint continues more than 5min at 17 ~ 25 DEG C; Second operation work is finish paint spraying process, before this electrostatic spraying, is aerial spraying afterwards: spray room temperature: 22 ~ 28 DEG C, spray room humidity: 60 ~ 70%; Finish paint carries out levelling process, is dried by finish paint after spraying and getting well, finish paint bake out temperature continues more than 30min at 85 ~ 90 DEG C; Three process is varnish spraying process, before this aerial spraying, after be electrostatic spraying: spray room temperature: 22 ~ 28 DEG C, spray room humidity: 60 ~ 70%; Varnish spray good after carry out levelling process, varnish dried, varnish is cold by force, wherein, varnish bake out temperature continues more than 30min at 85 ~ 90 DEG C, and the strong cold temperature of varnish is continue more than 5min at 20 ~ 30 DEG C.
Further, described basecoat paint is that employing 4 mechanical grippers carry out aerial spraying; Finish paint spraying first adopts 2 mechanical grippers to carry out electrostatic to hang cup spraying, adopts 4 mechanical grippers to carry out air gun spraying afterwards; Described varnish spraying first adopts 2 mechanical grippers to carry out aerial spraying, is that the electrostatic that employing 4 mechanical grippers carry out outstanding cup hangs cup spraying afterwards.
Further, described plastic raw material comprises polypropylene 35 ~ 55% by weight percentage, heat stabilizer 3-4%, processing aid 3-5%, flexibilizer 12-18%, compatilizer 4-6%, inorganic filler 12 ~ 22%, fire retardant 5-20%, dispersant 1-1.5% and antioxidant 1.5-2%.
Further, described flame processing apparatus comprises flame spray head, position sensing device, support and air accumulator; Described flame spray head is arranged on the top of support, and can be with support axle and in rotary moving under the control of described second control module; Described air accumulator is connected with flame spray head, for providing combustion medium for flame spray head; Described support is provided with base, is used for placing described air accumulator; Described position sensing device is rack-mount, during for obtaining the positional information of plastic product, and positional information is sent to the second control module; Described second control module is electrically connected with described flame spray head and position sensing device respectively, whether meet default when judging that the positional information of plastic product meets default by described second control module, when these segmentation symbols match, the plastic product position controlling to capture is motionless, and the run location controlling flame spray head realizes the overlap on plastic product surface, the removal of burr; Or the position controlling flame spray head is motionless, controls mechanical gripper run location, realize the removal of the overlap to plastic product surface, burr.
Further, described machine automatization is cut sprue apparatus and is comprised cutter, position sensing device, ash can and support; Described cutter are arranged on the top of support, and can be that axle rotates with support under the control of described second control module; Described Bracket setting is on described ash can; Positional information, at the sidewall of described ash can, during for obtaining the positional information of plastic product, and is sent to the second control module by described position sensing device; Described second control module is electrically connected with described cutter, position sensing device respectively, when obtaining the positional information of the plastic product that described position sensing device transmits, judge whether plastic product meets default, when these segmentation symbols match, the plastic product position controlling to capture is motionless, and the run location controlling cutter realizes plastic product automatic desprucing; Or the position controlling cutter is motionless, controls mechanical gripper run location, realize plastic product automatic desprucing.
Further, also comprise figure acquisition module, to carrying out overlap, the plastic product of burr and cast gate process carries out IMAQ; Second control module, for carrying out graphic feature extraction to the figure gathered, judges whether the graphic feature extracted meets default standard.
Further, also comprising tank water temperature detection module, for detecting the water temperature of each tank, and the water temperature information of detection being sent to described 3rd control module;
Water temperature, also for receiving described water temperature information, when occurring that the temperature of tank does not meet the scope of setting, to control in control range by heating up or lowering the temperature by described 3rd control module.
Further, also comprising Temperature and Humidity module, for detecting temperature and the humidity in spray room, and testing result being sent to the 4th control module; The humiture result of described 4th control module also for detecting described in basis, spray room temperature in basecoat paint, finish paint spraying and varnish spraying process and humidity are controlled, if exceed setting range, room temperature and humid control will be sprayed in setting range.
Further, described spray robot is equipped with protective garment; Described protective garment comprises the first polytetrafluoroethylene film layer, polyurethane layer and the second polytetrafluoroethylene film layer that distribute successively, described first polyurethane rete and the second polytetrafluoroethylene film layer are coated in described polytetrafluoroethylene film layer both sides respectively, by weight percentage, described polytetrafluoroethylene film layer is made up of following raw material: polyflon 53-63%, silicone powder 9-11%, polyethers ether copper 5-6%, lubricant 7-9%, dibasic phosphite ester account for 3% ~ 4%, and carbon fiber accounts for 10% ~ 15%; Described polyurethane layer is by weight percentage: polyamine group benzoic acid resin 75-80%, Tissuemat E 5-9%, nano titanium oxide 6-9%, DMF 8 – 16%.
Further, turnover appliance car, for transporting the bumper after process of spraying paint.
Further, also comprise and protective treatment is carried out to spray robot, describedly protective treatment is carried out to spray robot comprise: described spray robot is put on protective garment; Described protective garment comprises the first polytetrafluoroethylene film layer, polyurethane layer and the second polytetrafluoroethylene film layer that distribute successively, described first polyurethane rete and the second polytetrafluoroethylene film layer are coated in described polytetrafluoroethylene film layer both sides respectively, by weight percentage, described polytetrafluoroethylene film layer is made up of following raw material: polyflon 53-63%, silicone powder 9-11%, polyethers ether copper 5-6%, lubricant 7-9%, dibasic phosphite ester account for 3% ~ 4%, and carbon fiber accounts for 10% ~ 15%; Described polyurethane layer is by weight percentage: polyamine group benzoic acid resin 75-80%, Tissuemat E 5-9%, nano titanium oxide 6-9%, DMF 8 – 16%.
A kind of colored bumper production system provided by the invention, automaticity is high, and the intensity of its plastic is high, strong shock resistance, and dimensional accuracy is relatively stable, and the defect that well can control plastic produces.By the paint component that spraying coating process manufactures, the PASS on its plastic surface is stronger, improve surface property (improving resistance to soiling, corrosion resistance etc.), paint is made to can be good at keeping the vividness of its color, also can solve the defect of plastic itself simultaneously, thus improve the quality of product, improve the qualification rate of producing product.
Accompanying drawing explanation
A kind of colored bumper operation system structure block diagram that the embodiment of the present invention that Fig. 1 provides for the embodiment of the present invention provides;
The structural representation of the flame processing apparatus that Fig. 2 provides for the embodiment of the present invention;
The application schematic diagram of the flame processing apparatus that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 cuts the structural representation of sprue apparatus for machine automatization that the embodiment of the present invention provides;
Fig. 5 cuts the application schematic diagram of sprue apparatus for the machine automatization done inventive embodiments and provide;
The turnover appliance car owner view that Fig. 6 provides for the embodiment of the present invention;
The turnover appliance car side view that Fig. 7 provides for the embodiment of the present invention.
Detailed description of the invention
See Fig. 1, a kind of colored bumper production system that the embodiment of the present invention provides, it comprises the first control module 101, second control module 102, the 3rd control module 103 and the 4th control module 104.Wherein, before injection molding, control to preheat injection machine, preheating time is 15min; Plastic raw material is added to dry in barrel carry out concentrating dry material time, controlling barrel temperature is 180 ~ 235 DEG C, raw material drying temperature is 55-70 DEG C, and the baking material time is greater than 2h, and (benefit not only can remove moisture, and reduce the generation of product defect in injection moulding process, as the defect such as bubble, filamentary silver); When plastic raw material being injected in injection machine by charge pipe, control injection machine and start injection moulding, wherein, technological parameter is as follows: mold closing: mold surface temperature is 25 ~ 35 DEG C, hot flow path temperature is 245 ~ 255 DEG C, and (benefit to reduce the generation of product defects, also can prevent the generation causing mechanical disorder too high or too low for temperature simultaneously), control the temperature everywhere of injection machine; Raw material preformed parameter: screw speed is 45 ~ 65 turns/min (for improving the plasticizing rate of raw material, if rotating speed is too fast, easily occurring the problems such as product bubble, otherwise the problem such as product there will be deficiency, reprint books in a reduce format); Raw material injection moulding speed is that (this injection moulding speed can obtain the good product of size to 34 ~ 36mm/s, if injection moulding speed is too fast, there will be the defect such as flash, bubble, otherwise, injection moulding speed is excessively slow, can cause defects such as lacking material, weld mark, ripple, affect properties of product); Injection pressure is 150-200bar (this pressure can obtain the more stable product of size, if injection pressure is excessive, there will be the defects such as product overlap, flash, if injection pressure is too small, can cause the defects such as bubble, weld mark, filamentary silver); Injection time is 8 ~ 11sec; Dwell pressure: 45bar, the dwell time is 3 ~ 7sec; Cooling: cool time is 10 ~ 16sec; Suitable dwell pressure and dwell time can obtain the product of size qualification.
The plastic product that second control module 102 completes for controlling mechanical gripper crawl injection moulding, and control flame processing apparatus to capture plastic product carry out flame treatment to remove overlap, the burr of product surface, control mechanical automatic gate cutting equipment and automatic desprucing carried out to plastic product.
See Fig. 2, shown in 3, this flame processing apparatus comprises flame spray head 3, position sensing device 4, support 5 and air accumulator 6.Wherein, plastic product 2 is controlled to capture by mechanical gripper 1.Flame spray head 3 is arranged on the top of support 5, and can be in rotary moving for axle with support 5 under the control of the second control module 102, can adjust flame injection direction like this.Air accumulator 6 is connected with flame spray head 3, for providing combustion medium for flame spray head.Support 5 is provided with base, is used for placing air accumulator 6, is provided with universal wheel, facilitates the movement of support like this in support 5 base corner, and simultaneously support 5 is provided with groove, is used for holding the jockey of each parts, so not only safety but also attractive in appearance; Support 5 can stretch up and down according to the position of plastic product 2, thus adjustment height, the better position regulating flame spray head 3, reaches perfect deburring effect.Position sensing device 4 is arranged on the middle and upper part of support 5, the final correct position that can adjust on support 5 according to the position of plastic product 2.Position sensing device 4 is when position sensing device 4 gets the positional information of plastic product, and positional information is sent to the second control module 102, judge whether plastic product meets default (distance namely between the plastic product 2 that captures of mechanical gripper 1 and flame spray head meets default) by the second control module 102, when these segmentation symbols match, control signal is sent to the switch controlling flame spray head, control flame spray head is opened, and the run location controlling flame spray head realizes the overlap on plastic product surface, the removal of burr; Or the position controlling flame spray head is motionless, controls mechanical gripper run location, realize the removal of the overlap to plastic product surface, burr.In order to ensure to remove the overlap of product surface, the technique effect of burr further, this device can also comprise figure acquisition module, figure acquisition module gathers the image information of plastic product 2 in good time, and the image information collected is fed back to the second control module 102, remove the overlap on plastic product surface, the technique effect of burr by the second control module 102 according to image information analysis, and control size and the time of flame spray head 3 injection with this.
Shown in Fig. 4, Fig. 5, machine automatization is cut sprue apparatus and is comprised cutter 7, position sensing device 4, ash can 9 and support 8.Cutter 7 are arranged on the top of support 8, can rotate, and can carry out adjustment direction according to the direction of plastic product 2 (being captured by mechanical gripper 1) under the control of the second control module 102 with support 8 for axle.Position sensing device 4 can slidably reciprocate up and down at ash can 9 one sidewall, to adjust the position on ash can 9 according to the position of plastic product 2.Second control module 102 is also electrically connected with position sensing device 4 and cutter 7 respectively.When position sensing device 4 gets the positional information of plastic product, and positional information is sent to the second control module 102, judge whether plastic product meets default (distance namely between the plastic product 2 that captures of mechanical gripper 1 and cutter 7 meets default) by the second control module 102, when these segmentation symbols match, control cutter 7 to heat up, the plastic product position controlling to capture is motionless, and the run location controlling cutter 7 realizes plastic product automatic desprucing; Or the position controlling cutter 7 is motionless, controls mechanical gripper run location, realize plastic product automatic desprucing.Support 8 is provided with groove, is used for holding the connecting line of each parts, and support 8 length can be stretched up and down according to the position of product 2 simultaneously, thus adjustment height, the better position regulating cutter 7.The angle, four, bottom of ash can 9 is respectively arranged with universal wheel, facilitates the movement of ash can like this, is provided with a door simultaneously, conveniently collects like this when cast gate is full at a sidewall bottom of ash can.
Carrying out after overlap, burr and cast gate process to plastic product, also by figure acquisition module, to carrying out overlap, the plastic product of burr and cast gate process carries out IMAQ; Whether the second control module carries out graphic feature extraction to the figure gathered, and judges whether the graphic feature extracted meets default standard, such as, judges the effect of overlap, burr and cast gate process process, qualified, processes the need of continuing.
3rd control module 103, in HIGH TEMPERATURE PURGE room, controls 5 tanks and cleans plastic product, wherein,
One # tank: control water temperature range: 55 ~ 60 DEG C, washing time: 60 ~ 180s, total alkali concn: 5 ~ 15mg/l, electrical conductivity: 1000 ~ 1800us/cm, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar;
Two # tanks: control water temperature range: 50 ~ 55 DEG C, washing time: > 30s, conductivity range: 100 ~ 500us/cm, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar;
Three # tanks: control water temperature range: 20 ~ 45 DEG C, washing time: > 30s, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar;
Four # tanks: control water temperature range: 15 ~ 40 DEG C, washing time: > 30s, conductivity range :≤75us/cm, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar, discharge scope: > 400L/H;
Five # tanks: control conductivity range :≤35us/cm, water temperature range: 15 ~ 30 DEG C, washing time: > 30s, spray pump hydraulic pressure: 1.2 ~ 1.7bar, discharge scope: > 750L/H, bag filter pressure reduction: 0.2 ~ 0.4bar.
3rd control module 103 is also detected by the water temperature of tank water temperature detection module to each tank in good time, and according to the result detected, judge whether the temperature of each tank meets the requirements, when occurring that the temperature of tank does not meet the scope of setting, by heating up or lowering the temperature water temperature controlled in control range.
Above parameter ensure that and not only can not hurt product surface in cleaning process, and can play good cleaning performance, better removes dust and the filament of product surface.
4th control module 104 is for drying the plastic product after cleaning, and send into drying shed carry out drying process, then flame treatment (can improve the adhesive force of product surface spray coating paint) is carried out to plastic product, and carry out ionization dedusting (dust of product surface can be removed better) by between the plastic product feeding ionization dedusting after flame treatment; In the spray room closed, control spray robot plastic product is carried out three road painting process process, wherein, first operation is basecoat paint, adopt aerial spraying: spray room temperature: 22 ~ 28 DEG C, spray room humidity: 60 ~ 70%, spray time: 50-60s, quantity for spray: priming paint 300cc/min; After spraying, carry out levelling process, it is cold by force then to carry out priming paint oven dry, priming paint, and priming paint bake out temperature continues more than 15min at 80 ~ 90 DEG C, and the strong cold temperature of priming paint continues more than 5min at 17 ~ 25 DEG C; Second operation work is finish paint spraying process, before this electrostatic spraying, is aerial spraying afterwards: spray room temperature: 22 ~ 28 DEG C, spray room humidity: 60 ~ 70%; Finish paint carries out levelling process, is dried by finish paint after spraying and getting well, finish paint bake out temperature continues more than 30min at 85 ~ 90 DEG C; Three process is varnish spraying process, before this aerial spraying, after be electrostatic spraying: spray room temperature: 22 ~ 28 DEG C, spray room humidity: 60 ~ 70%; Varnish spray good after carry out levelling process, varnish dried, varnish is cold by force, wherein, varnish bake out temperature continues more than 30min at 85 ~ 90 DEG C, and the strong cold temperature of varnish is continue more than 5min at 20 ~ 30 DEG C.
4th control module 104 also detects temperature and the humidity in spray room by Temperature and Humidity module, and according to the humiture result detected, spray room temperature in basecoat paint, finish paint spraying and varnish spraying process and humidity are controlled, if exceed setting range, room temperature and humid control will be sprayed in setting range.
In order to effectively carry out protective treatment to spray robot, also spray robot is put on protective garment.Protective garment comprises the first polytetrafluoroethylene film layer, polyurethane layer and the second polytetrafluoroethylene film layer that distribute successively, described first polyurethane rete and the second polytetrafluoroethylene film layer are coated in described polytetrafluoroethylene film layer both sides respectively, by weight percentage, described polytetrafluoroethylene film layer is made up of following raw material: polyflon 53-63%, silicone powder 9-11%, polyethers ether copper 5-6%, lubricant 7-9%, dibasic phosphite ester account for 3% ~ 4%, and carbon fiber accounts for 10% ~ 15%; Described polyurethane layer is by weight percentage: polyamine group benzoic acid resin 75-80%, Tissuemat E 5-9%, nano titanium oxide 6-9%, DMF 8 – 16%.
The bumper living through above step process can be transported by turnover appliance car.Concrete structure is see Fig. 7, and shown in 8, this turnover appliance car, comprises moveable chassis 10, at least one supporting component and at least one positioning component 17 for placing turnover appliance; Supporting component is arranged on chassis 10, and positioning component 17 is disposed on supporting component.When supporting component number is multiple, supporting component interval is located on chassis 10.When supporting component number is multiple, wherein, each positioning component 17 on each supporting component and to be located on opposite side supporting component and to be between the positioning component 17 on same level position and be provided with at least one support bar.Supporting component comprises two support columns 11 and crossbeam 16; Chassis 10 is provided with reinforcement 12, and the bottom of support column 11 is located on reinforcement 12, and the top of two support columns 11 is connected by crossbeam 16.Fix with brace 13 between chassis 10 and reinforcement 12.Fix with brace 13 between support column 11 and crossbeam 16.Above structure greatly strengthen fastness and the stability of tote cart.Support column 11 is also provided with handrail 18, and handled easily personnel transport the turnover of utensil car.Positioning component 17 by the assembly that is spirally connected (being made up of bolt 19 and nut 20) location and installation on support column 11, be convenient to positioning component 17 for convenience detach like this, thus different positioning components 17 can be changed according to the difference of product, expand the utensil car scope of application.Chassis 10 is the enclosure spaces surrounded by four pillars, and on chassis, 10 4 angles are separately installed with 4 universal caster wheels 14, facilitate the transport of utensil car.
The colored bumper production system that the present invention proposes has following beneficial effect: the automobile plastic part product made by above-mentioned Shooting Technique, its feature is that the intensity of its plastic is high, strong shock resistance, dimensional accuracy is relatively stable, and the defect that well can control plastic produces.By the paint component that spraying coating process manufactures, the PASS on its plastic surface is stronger, improve surface property (improving resistance to soiling, corrosion resistance etc.), paint is made to can be good at keeping the vividness of its color, also can solve the defect of plastic itself simultaneously, thus improve the quality of product, improve the qualification rate of producing product.Product reaches outside requirement in outward appearance, and the numerical value that gloss records with special glossometer at 20 degree of oblique angles is more than 80, and product surface value of chromatism color difference meter records numerical value below 1.7.Adhesive force is tested: according to DINENISO2409 standard, records and is less than 5% in test section paint destructiveness.Steam jet test: according to AA-0136 evaluation test result, after impacting, the monolateral maximum magnitude of breadboard failure area is no more than 1mm.Thickness: according to AA-0334 standard, thickness is respectively priming paint: 10 ~ 20 μm, finish paint: 10 ~ 30 μm, varnish: 30 ~ 35 μm.Rubble impact test: according to DINENISO20567-1 standard, after impacting, breadboard area damage degree is below 10%.Condensed water Constant Climate is tested: according to AA-0180 evaluation test result, product surface zero defect.Anti-aging test: according to AA-0026 evaluation test result, product without cosmetic variation, and is stayed product surface value and is greater than more than 95%.The automobile colored bumper of gained of the present invention is greatly improved in its performance, have lightweight, excellent in cushion effect, corrosion resistance is good, security advantages of higher.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a colored bumper production system, is characterized in that, comprising:
First control module, before injection molding, control to preheat injection machine, preheating time is 15min; Plastic raw material is added to dry in barrel carry out concentrating dry material time, controlling barrel temperature is 180 ~ 235 DEG C, and raw material drying temperature is 55-70 DEG C, and dries the material time and be greater than 2h; When being injected in injection machine by plastic raw material by charge pipe, control injection machine and start injection moulding, wherein, technological parameter is as follows: mold closing: mold surface temperature is 25 ~ 35 DEG C, and hot flow path temperature is 245 ~ 255 DEG C, controls the temperature everywhere of injection machine; Raw material preformed parameter: screw speed is 45 ~ 65 turns/min; Raw material injection moulding speed is 34 ~ 36mm/s; Injection pressure is 150-200bar; Injection time is 8 ~ 11sec; Dwell pressure: 45bar, the dwell time is 3 ~ 7sec; Cooling: cool time is 10 ~ 16sec;
Second control module, control the plastic product that mechanical gripper crawl injection moulding completes, and control flame processing apparatus to capture plastic product carry out flame treatment to remove overlap, the burr of product surface, control mechanical automatic gate cutting equipment and automatic desprucing carried out to plastic product;
3rd control module, in HIGH TEMPERATURE PURGE room, controls 5 tanks and cleans plastic product, wherein,
One # tank: control water temperature range: 55 ~ 60 DEG C, washing time: 60 ~ 180s, total alkali concn: 5 ~ 15mg/l, electrical conductivity: 1000 ~ 1800us/cm, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar;
Two # tanks: control water temperature range: 50 ~ 55 DEG C, washing time: > 30s, conductivity range: 100 ~ 500us/cm, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar;
Three # tanks: control water temperature range: 20 ~ 45 DEG C, washing time: > 30s, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar;
Four # tanks: control water temperature range: 15 ~ 40 DEG C, washing time: > 30s, conductivity range :≤75us/cm, spray pump hydraulic pressure: 1.3 ~ 1.7bar, bag filter pressure reduction: 0.2 ~ 0.4bar, discharge scope: > 400L/H;
Five # tanks: control conductivity range :≤35us/cm, water temperature range: 15 ~ 30 DEG C, washing time: > 30s, spray pump hydraulic pressure: 1.2 ~ 1.7bar, discharge scope: > 750L/H, bag filter pressure reduction: 0.2 ~ 0.4bar;
4th control module, dries the plastic product after cleaning, and sends into drying shed and carry out drying process, then carries out flame treatment to plastic product, and the plastic product after flame treatment is sent into ionize between dedusting and carry out ionization dedusting; In the spray room closed, control spray robot plastic product is carried out three road painting process process, wherein, first operation is basecoat paint, adopt aerial spraying: spray room temperature: 22 ~ 28 DEG C, spray room humidity: 60 ~ 70%, spray time: 50-60s, quantity for spray: priming paint 300cc/min; After spraying, carry out levelling process, it is cold by force then to carry out priming paint oven dry, priming paint, and priming paint bake out temperature continues more than 15min at 80 ~ 90 DEG C, and the strong cold temperature of priming paint continues more than 5min at 17 ~ 25 DEG C; Second operation work is finish paint spraying process, before this electrostatic spraying, is aerial spraying afterwards: spray room temperature: 22 ~ 28 DEG C, spray room humidity: 60 ~ 70%; Finish paint carries out levelling process, is dried by finish paint after spraying and getting well, finish paint bake out temperature continues more than 30min at 85 ~ 90 DEG C; Three process is varnish spraying process, before this aerial spraying, after be electrostatic spraying: spray room temperature: 22 ~ 28 DEG C, spray room humidity: 60 ~ 70%; Varnish spray good after carry out levelling process, varnish dried, varnish is cold by force, wherein, varnish bake out temperature continues more than 30min at 85 ~ 90 DEG C, and the strong cold temperature of varnish is continue more than 5min at 20 ~ 30 DEG C.
2. colored bumper production system according to claim 1, is characterized in that, described basecoat paint is that employing 4 mechanical grippers carry out aerial spraying; Finish paint spraying first adopts 2 mechanical grippers to carry out electrostatic to hang cup spraying, adopts 4 mechanical grippers to carry out air gun spraying afterwards; Described varnish spraying first adopts 2 mechanical grippers to carry out aerial spraying, is that the electrostatic that employing 4 mechanical grippers carry out outstanding cup hangs cup spraying afterwards.
3. colored bumper production system according to claim 1, is characterized in that, described plastic raw material comprises:
Polypropylene 35 ~ 55% by weight percentage, heat stabilizer 3-4%, processing aid 3-5%, flexibilizer 12-18%, compatilizer 4-6%, inorganic filler 12 ~ 22%, fire retardant 5-20%, dispersant 1-1.5% and antioxidant 1.5-2%.
4. colored bumper production system according to claim 1, is characterized in that, described flame processing apparatus comprises:
Flame spray head, position sensing device, support and air accumulator;
Described flame spray head is arranged on the top of support, and can be with support axle and in rotary moving under the control of described second control module;
Described air accumulator is connected with flame spray head, for providing combustion medium for flame spray head;
Described support is provided with base, is used for placing described air accumulator;
Described position sensing device is rack-mount, during for obtaining the positional information of plastic product, and positional information is sent to the second control module;
Described second control module is electrically connected with described flame spray head and position sensing device respectively, whether meet default when judging that the positional information of plastic product meets default by described second control module, when these segmentation symbols match, the plastic product position controlling to capture is motionless, and the run location controlling flame spray head realizes the overlap on plastic product surface, the removal of burr; Or the position controlling flame spray head is motionless, controls mechanical gripper run location, realize the removal of the overlap to plastic product surface, burr.
5. colored bumper production system according to claim 1, is characterized in that, described machine automatization is cut sprue apparatus and comprised:
Cutter, position sensing device, ash can and support;
Described cutter are arranged on the top of support, and can be that axle rotates with support under the control of described second control module;
Described Bracket setting is on described ash can;
Positional information, at the sidewall of described ash can, during for obtaining the positional information of plastic product, and is sent to the second control module by described position sensing device;
Described second control module is electrically connected with described cutter, position sensing device respectively, when obtaining the positional information of the plastic product that described position sensing device transmits, judge whether plastic product meets default, when these segmentation symbols match, the plastic product position controlling to capture is motionless, and the run location controlling cutter realizes plastic product automatic desprucing; Or the position controlling cutter is motionless, controls mechanical gripper run location, realize plastic product automatic desprucing.
6. colored bumper production system according to claim 1, is characterized in that, also comprise:
Figure acquisition module, to carrying out overlap, the plastic product of burr and cast gate process carries out IMAQ;
Second control module, for carrying out graphic feature extraction to the figure gathered, judges whether the graphic feature extracted meets default standard.
7. colored bumper production system according to claim 1, is characterized in that, also comprises tank water temperature detection module, for detecting the water temperature of each tank, and the water temperature information of detection is sent to described 3rd control module;
Water temperature, also for receiving described water temperature information, when occurring that the temperature of tank does not meet the scope of setting, to control in control range by heating up or lowering the temperature by described 3rd control module.
8. colored bumper production system according to claim 1, is characterized in that, also comprises Temperature and Humidity module, for detecting temperature and the humidity in spray room, and testing result is sent to the 4th control module; The humiture result of described 4th control module also for detecting described in basis, spray room temperature in basecoat paint, finish paint spraying and varnish spraying process and humidity are controlled, if exceed setting range, room temperature and humid control will be sprayed in setting range.
9. colored bumper production system according to claim 1, is characterized in that, described spray robot is equipped with protective garment; Described protective garment comprises the first polytetrafluoroethylene film layer, polyurethane layer and the second polytetrafluoroethylene film layer that distribute successively, described first polyurethane rete and the second polytetrafluoroethylene film layer are coated in described polytetrafluoroethylene film layer both sides respectively, by weight percentage, described polytetrafluoroethylene film layer is made up of following raw material: polyflon 53-63%, silicone powder 9-11%, polyethers ether copper 5-6%, lubricant 7-9%, dibasic phosphite ester account for 3% ~ 4%, and carbon fiber accounts for 10% ~ 15%; Described polyurethane layer is by weight percentage: polyamine group benzoic acid resin 75-80%, Tissuemat E 5-9%, nano titanium oxide 6-9%, DMF 8 – 16%.
10. the colored bumper production system according to any one of claim 1-9, is characterized in that, also comprise:
Turnover appliance car, for transporting the bumper after process of spraying paint.
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|---|---|---|---|
| CN201510719156.XA CN105235127A (en) | 2015-10-28 | 2015-10-28 | Production system for color bumper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719156.XA CN105235127A (en) | 2015-10-28 | 2015-10-28 | Production system for color bumper |
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| CN105235127A true CN105235127A (en) | 2016-01-13 |
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| CN201510719156.XA Pending CN105235127A (en) | 2015-10-28 | 2015-10-28 | Production system for color bumper |
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