CN108000847A - A kind of method and device of no mould blowing multi-curvature molded part - Google Patents
A kind of method and device of no mould blowing multi-curvature molded part Download PDFInfo
- Publication number
- CN108000847A CN108000847A CN201711283833.3A CN201711283833A CN108000847A CN 108000847 A CN108000847 A CN 108000847A CN 201711283833 A CN201711283833 A CN 201711283833A CN 108000847 A CN108000847 A CN 108000847A
- Authority
- CN
- China
- Prior art keywords
- control system
- compressed air
- tele
- hard tube
- molded part
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000007664 blowing Methods 0.000 title claims abstract description 18
- 238000007493 shaping process Methods 0.000 claims abstract description 41
- 238000009792 diffusion process Methods 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 238000003856 thermoforming Methods 0.000 claims abstract description 4
- 238000010792 warming Methods 0.000 claims abstract description 4
- 238000012937 correction Methods 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000004886 process control Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/58—Blowing means
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
A kind of method and device of no mould blowing multi-curvature molded part, this method include：Plate is fixed on shaping tank, then shaping tank is put into thermoforming ovens, is warming up to forming temperature；By the three-dimensional conversion of drawings of multi-curvature molded part product into tele-control system and inputting process parameters；Tele-control system with time three-dimension varying compressed air diffusion sprayer position；The ejection pressure of nozzle is controlled by pressure reducing valve；Pressure in tank is controlled by pressure-relief valve；Spatial digitizer is scanned plate, obtains the feature image of plate surface, and feeds back to tele-control system；Tele-control system obtains the real-time forming height of plate surface, with reference to rebound surplus, the gas flow of correction compressed air diffusion sprayer height and nozzle；EP (end of program) postcooling cools down, and takes out molded part finished product.The present invention can produce the small molded part of Varying-thickness, complex curvatures, yield, the production cost of follow-up assembly product can be greatly reduced under conditions of without using mould.
Description
Technical field
The invention belongs to plastic shaping field, and in particular to a kind of method and dress of no mould blowing multi-curvature molded part
Put, be more particularly to a kind of method and device that multi-curvature complexity molded part can be blow molded out without mould.
Background technology
Due to the high-end facility such as Super Car, ship, aircraft in recent years in order to obtain the wind in the more preferable visual field and smaller
Coefficient is hindered, gradually adopts the large-scale transparent molded part of the multi-curvature such as raindrop shape, M shapes, parabola shaped integration as windscreen or cockpit
Cover, and this large-scale transparent molded part generally require above it is thick, the Varying-thickness plate such as thin is processed shaping below, subtract to reach
The purpose of weight.
This molded part is realized often through the methods of blowing, plastic uptake, gravitational method.These forming methods are generally divided into
No mould molding and there is two major class of mould molding.
It is cost-effective without mould molding, die sinking expense is saved, simple and flexible, surface smoothness is good, is influenced from mould, especially
It is suitable for the new machine wind tunnel test Qualify Phase such as various aircraft, sport car, because the shape in this stage can be tied according to experiment
Fruit is constantly changed, and the die sinking expense of costliness can be saved using no mould forming method, can directly use the molded part of final material
Wind tunnel test is carried out, real frictional resistance can be so also added in experimental data.But this forming method is only
The molded part that molding thickness is uniform, curvature is single is applicable in, for the molded part of those Varying-thickness, curvature complexity, is just seemed
It is helpless.For example, the overall high of canopy can be greatly reduced in canopy to the M types two-seater with good development prospect side by side
Degree, but common no mould forming method is difficult to mold.
Although using there is mould forming method to be molded variously-shaped complicated molded part, for large scale molded part
For, mould difficulty of processing is big, and injection pressure is big, and surface smoothness is influenced by mould, and it is insoluble to be also easy to produce demoulding trace etc.
Drawback, furthermore, it is contemplated that the problems such as mold developing expense, is not suitable for the less molded part of yield.
Therefore, there is an urgent need for research and develop a kind of new method to produce the small molded part of this Varying-thickness, complex curvatures, yield.
The content of the invention
The object of the present invention is to provide a kind of method and device of no mould blowing multi-curvature molded part, without using mould
Under conditions of, the small molded part of production Varying-thickness, complex curvatures, yield, can save experimental stage multi-curvature molded part exploitation mould
The expense of tool, is greatly reduced the production cost of follow-up assembly product, and improves surface of shaped parts finish.
To achieve the above object, the present invention provides following technical solution：
A kind of device of no mould blowing multi-curvature molded part, it includes：Tank is molded, its top sets opening, divides on side wall
Air inlet pipe and pressure reducing valve, exhaust pipe and pressure-relief valve are not set；Shaping tank opening sets protrusion along lateral wall ring；One is further included arranged on convex
Pressure ring and the fixture supporting with pressure ring and protrusion on rising；Compressed air hose, be placed in shaping tank in, including compressed-air hose and
Compressed air hard tube；The compressed air hard tube includes first segment L-shaped hard tube and second segment liftable hard tube and two sections of hard tubes
Between the hose that is connected；The first segment L-shaped hard tube other end is connected with compressed-air hose；The second segment liftable hard tube other end
If compressed air diffusion sprayer, which is directed toward shaping upper end opening；Second segment liftable hard tube leads to
Cross the control lifting of lift servo motor；The universal trolley of permanent magnet, is fixed on first segment L-shaped hard tube and is placed in shaping pot bottom；
Thread transmission, under shaping tank lower section, including the base of threaded drive rod and fixed thread drive link, the base
Equipped with screw thread；Electromagnet universal trolley is installed, the universal trolley of electromagnet is arranged on shaping tank on the threaded drive rod
The underface of the universal trolley of outer opposite permanent magnet；Two-dimensional laser meter counter, is fixed on the universal trolley of electromagnet；Horizontal servo electricity
Machine, one end of its output shaft connection screw thread drive link, drives threaded drive rod to rotate, makes the universal trolley transverse shifting of electromagnet；
Servo longitudinal motor, its output shaft are connected on the other end base of relatively transverse servomotor by a helical gear, helical gear
Closely it is engaged with the screw thread below base, servo longitudinal motor delivers power to base, band motor magnet ten thousand by helical gear
Vertically moved at the same time to trolley, threaded drive rod and horizontal servomotor；Tele-control system, is electrically connected by frequency converter
Horizontal servomotor, servo longitudinal motor；Tele-control system swashs with pressure reducing valve, pressure-relief valve, lift servo motor, two dimension respectively
Light meter counter connects；Spatial digitizer, is arranged at the top for the plate that shaping tank opening is fixed, spatial digitizer capture plate
The image on surface is simultaneously transferred to tele-control system.
Further, the second segment liftable hard tube outer wall is equipped with screw thread；A helical gear is further included, helical gear one end is with rising
The output axis connection of servomotor drops, and the other end is closely engaged with the screw thread on second segment liftable hard tube outer wall, lift servo
Motor delivers power to second segment liftable hard tube by helical gear and controls second segment liftable hard tube to lift.
The method of no mould blowing multi-curvature molded part of the present invention, it includes the following steps：
S1：Preforming plate is fixed on shaping tank, then shaping tank is put into thermoforming ovens, is warming up to shaping temperature
Degree, corresponding soaking time is set according to preforming sheet metal thickness；
S2：By in the three-dimensional on-line software in three-dimensional conversion of drawings to the tele-control system of multi-curvature molded part product,
And the molding part technological parameter in tele-control system；Tele-control system spreads with time three-dimension varying compressed air and sprays
The position of head：
Two-dimensional laser meter counter by the universal trolley of electromagnet transverse axis, the longitudinal axis location transmission to tele-control system, far
Process control system-computed goes out correct output valve and exports to corresponding frequency converter, and horizontal servo electricity is controlled by frequency converter
Machine, servo longitudinal motor, wherein, horizontal servomotor drives threaded drive rod to rotate, and the universal trolley of electromagnet is occurred laterally
It is mobile；Servo longitudinal motor delivers power to base by helical gear, and the band universal trolley of motor magnet vertically moves；Electromagnet
Universal trolley controls the position of the universal trolley of permanent magnet in shaping tank by magnetic field, so as to control fixed on the universal trolley of permanent magnet
Compressed air hard tube on position of the compressed air diffusion sprayer on transverse axis, the longitudinal axis；Tele-control system is watched by lifting
Motor is taken to adjust the second segment liftable hard tube lifting of compressed air hard tube and then control the height of compressed air diffusion sprayer, from
And realize the position of three-dimension varying compressed air diffusion sprayer；
S3：Spatial digitizer is scanned preforming plate surface, obtains the feature image of plate surface, and feeds back
To tele-control system；Tele-control system obtains the real-time forming height of plate surface, and with reference to rebound surplus, correction compression is empty
The gas flow of gas diffusion sprayer height and nozzle；
Wherein, tele-control system is molded the pressure in tank by the pressure-relief valve control being molded on pot sidewall exhaust pipe, comes
Adjust rebound surplus；Tele-control system adjusts the lifting of second segment liftable hard tube to proofread compression by lift servo motor
The height of air diffusion sprayer；Tele-control system adjusts blowing in air inlet pipe by the pressure reducing valve being molded in pot sidewall air inlet pipe
Atmospheric pressure, to proofread the gas flow of compressed air diffusion sprayer；
S4：EP (end of program) postcooling cools down, and takes out molded part finished product.
Further, the molded part technological parameter includes：
1) forming temperature (T)；
2) soaking time (t0)；
3) lateral displacement of different time electromagnet trolley is set to include apart from program segment, parameter：Shift length (L), when
Between (t), acceleration (a)；
4) length travel of different time electromagnet trolley is set to include apart from program segment, parameter：Shift length (L), when
Between (t), acceleration (a)；
5) different time compressed air diffusion sprayer height (H), rebound surplus (h), blow gas pressure (P), tank internal pressure are set
Power (p)；
6) the scanning range parameter of spatial digitizer is set.
Also, the three-dimensional on-line software includes but not limited to CATIA softwares.
Description below is made to the gas flow of rebound surplus of the present invention, blow gas pressure, compressed air diffusion sprayer：
In the present invention, after the rebound surplus leaves the shaping position for compressed air diffusion sprayer, plate is due to gravity
The amount of the reduction compact dimensions produced with stress.Surplus is sprung back to improve the key of compact dimensions precision, is molded tank pressure inside the tank
Big then rebound surplus is small, the small surplus that then springs back of shaping tank pressure inside the tank is big, can be by improving the method decreasing rebound of pressure inside the tank
Surplus, pressure inside the tank can be matched to set by springing back the concrete numerical value of surplus.The forming height that tele-control system controls is three-dimensional
The preforming height required in on-line software is plus the total height of rebound surplus, and there are following relational expression：Forming height=in advance into
Type height-rebound surplus.
In the present invention, the blow gas pressure is the pressure in air inlet pipe, this pressure is controlled by the pressure reducing valve in air inlet pipe.
The gas flow of the compressed air diffusion sprayer, is controlled by the pressure in air inlet pipe.The pressure inside the tank is in shaping tank
Pressure, this pressure are controlled by the pressure-relief valve on exhaust pipe.
The present invention is moved using the three-dimensional on-line software such as CATIA by tele-control system in shaping tank according to program three-dimensional
Dynamic compressed air diffusion sprayer, so as to be blow molded out multi-curvature molded part.And the reality for the plate surface that spatial digitizer is obtained
When forming height data and compressed air diffusion sprayer height and position, the data of blow gas pressure do closed loop, automatically controlled with realizing.
Simultaneously as forming height, preforming height are with rebound surplus, there are following relational expression：Forming height=preforming
Highly-rebound surplus, so, tele-control system of the present invention knows the real-time forming height of plate surface by spatial digitizer,
Pressure inside the tank is controlled to adjust rebound surplus by the pressure-relief valve for being molded tank, so as to the preforming height of accuracy controlling, Jin Erxian
Write and improve formed precision.
Beneficial effects of the present invention：
1. forming method provided by the invention can three-dimensional mobile band compressed air diffusion by tele-control system control
The compressed air hard tube of nozzle, makes compressed air diffusion sprayer, according to program three-dimensional shift position, be blow molded out change in shaping tank
Thickness, multi-curvature molded part.
2. the present invention is by tele-control system and 3 D scanning system, the shadow using different blow gas pressures to forming height
Sound and the compensation to springing back surplus, realize the molded part that complex curvatures can be blow molded out without molding die.
3. the present invention adjusts rebound surplus by being molded the pressure-relief valve control pressure inside the tank of tank, formed precision is improved.
4. the present invention is realized produces the small shaping of Varying-thickness, complex curvatures, yield on the premise of new die is not developed
Part, is greatly reduced scientific research and the production cost of follow-up assembly product, and significantly improves surface of shaped parts finish.
Brief description of the drawings
Fig. 1 is the structure diagram of device of the embodiment of the present invention.
Embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is retouched with reference to embodiment and attached drawing
State, but it is to be understood that these descriptions are simply to further illustrate the features and advantages of the present invention, rather than the present invention is protected
The limitation of scope.
Referring to Fig. 1, the device of no mould blowing multi-curvature molded part provided by the invention, it includes：Tank 1 is molded, it is pushed up
End sets opening 101, sets air inlet pipe 2 and pressure reducing valve 3, exhaust pipe 4 and pressure-relief valve 5 on side wall respectively；It is molded 1 upper end edge lateral wall of tank
Ring sets protrusion 102；Further include one be arranged on protrusion 102 on pressure ring 6 and with pressure ring 6 and protrusion 102 supporting fixtures 7；Compression is empty
Tracheae 8, is placed in shaping tank 1, including compressed-air hose 81 and compressed air hard tube 82；The compressed air hard tube 82 includes
First segment L-shaped hard tube 801 and second segment liftable hard tube 802, and first segment L-shaped hard tube 801 and second segment liftable hard tube
The hose 803 being connected between 802；801 other end of first segment L-shaped hard tube is connected with compressed-air hose 81；Second segment can rise
Drop 802 other end of hard tube sets compressed air diffusion sprayer 9, which is directed toward shaping upper end opening 101
Place；Second segment liftable hard tube 802 is controlled by lift servo motor 10 and lifted；The universal trolley 11 of permanent magnet, is fixed on first
1 bottom of shaping tank is placed on section L-shaped hard tube 801；Thread transmission, installed in 1 lower section of shaping tank, including threaded drive rod
12 and the base 13 of fixed thread drive link 12, the base 13 have screw thread；Electricity is installed on the threaded drive rod 12
The universal trolley 14 of magnet, the universal trolley 14 of electromagnet are connected by internal whorl with threaded drive rod 12, and electromagnet is universal small
Car 14 is arranged on the underface of the universal trolley 11 of the permanent magnet；Two-dimensional laser meter counter 15, is fixed on the universal trolley of electromagnet
Above 14；Horizontal servomotor 16, one end of its output shaft connection screw thread drive link 12, rotates threaded drive rod 12,
Universal 14 transverse shifting of trolley of electromagnet can be made by the rotation of threaded drive rod 12；Servo longitudinal motor 17, its output shaft
Be connected to by a helical gear (not marking in Fig. 1) on the other end base 13 of relatively transverse servomotor 16, helical gear with
The screw thread of the lower section of base 13 is closely engaged, and servo longitudinal motor 17 delivers power to base 13 by helical gear, drives
The universal trolley 14 of electromagnet, threaded drive rod 12 and horizontal servomotor 16 vertically move at the same time；Tele-control system 18, passes through
Frequency converter 19,20 connects horizontal servomotor 16, servo longitudinal motor 17 respectively；Tele-control system 18 respectively with pressure reducing valve 3,
Pressure-relief valve 5, lifting motor lift servo motor 10, two-dimensional laser meter counter 15 are electrically connected；Spatial digitizer 21, is arranged at shaping
The top for the plate 100 fixed at the opening of tank 1 101, spatial digitizer 21 capture the image on 100 surface of plate and are transferred to long-range
Control system 18.
Further, 802 outer wall of second segment liftable hard tube is equipped with screw thread；A helical gear is further included (not mark in Fig. 1
Go out), the output axis connection of helical gear one end and lift servo motor 10, the other end with 802 outer wall of second segment liftable hard tube
Screw thread be closely engaged, lift servo motor 10 delivers power to the control of second segment liftable hard tube 802 the by helical gear
Two sections of liftable hard tubes 802 lift, and then control the height of compressed air diffusion sprayer 9.
The method without mould blowing multi-curvature molded part of the present embodiment, including：
Before production, by the three-dimensional on-line software such as three-dimensional conversion of drawings of multi-curvature molded part product to CATIA, incite somebody to action
Drip molding technological parameter inputs tele-control system 18.
Technological parameter includes：
1) forming temperature (T)；
2) soaking time (t0)；
3) lateral displacement of the universal trolley 13 of different time electromagnet is set to include apart from program segment, parameter：Shift length
(L), time (t), acceleration (a)；
4) length travel of the universal trolley 13 of different time electromagnet is set to include apart from program segment, parameter：Shift length
(L), time (t), acceleration (a)；
5) height of different time diffusion sprayer 9 (H), rebound surplus (h), blow gas pressure (P), pressure inside the tank (p) are set；
6) the scanning range parameter of spatial digitizer 21 is set.
By inputting these parameters, tele-control system 18 calculates correct frequency converter automatically according to default program
19th, 20 output signal, to realize that the wish according to the producer is blow molded out the product of multi-curvature molded part.
During production, by ready drying materials, cleaning, the pretreatment such as focus point is set, preforming plate 100 is put
Put on shaping tank 1, put pressure ring 6, clip fixture 7, preforming plate 100 is fixed；Shaping tank 1 is put into shaping again to dry
In case, thermoforming ovens are warming up to forming temperature, according to the preforming corresponding soaking time of 100 thickness of plate setting is treated, are clicked on
The program start button of tele-control system 17, starts to be molded, the cooling of EP (end of program) postcooling.
In the embodiment of the present invention, for the focus point to paste or scribbling the round dot above plate before the forming, this point can be with
Focus point use is provided when focusing for the spatial digitizer 21, so that spatial digitizer 21 can obtain clearly image.
Compressed air diffusion sprayer 9 of the present invention has various shapes, the shape of specific compressed air diffusion sprayer 9, width
Degree can be determined according to the shape of specific molded part.
Application example
Polycarbonate molding part, sheet metal thickness 10mm to be formed, COMPUTER PARAMETER set as follows：
Forming temperature (T)=150 DEG C, soaking time (t0)=30min；
Lateral displacement is shown in Table 1 apart from program segment parameter；
Length travel is shown in Table 2 apart from program segment parameter；
Sprinkler height (H), rebound surplus (h), blow gas pressure (P), pressure inside the tank (p) are referring to table 3.
After shaping, the form error of molded part is can be controlled within 1%, meets technological requirement.After shaping, molded part
Test performance is shown in Table 4.
As shown in Table 4, compared with the performance of polycarbonate plate before shaping, the physical property of plate is not found bright after shaping
It is aobvious to decline.
Table 1
| L1 | 200mm | t1 | 1min | a1 | 0m/s2 |
| L2 | 50mm | t2 | 10min | a2 | 1m/s2 |
| L3 | 100mm | t3 | 5min | a3 | 1m/s2 |
| L4 | 100mm | t4 | 5min | a4 | 1m/s2 |
| L5 | 100mm | t5 | 3min | a5 | 0m/s2 |
| L6 | 100mm | t6 | 2min | a6 | 0m/s2 |
Table 2
| L1 | 300mm | t1 | 1min | a1 | 0m/s2 |
| L2 | 0mm | t2 | 10min | a2 | 0m/s2 |
| L3 | 0mm | t3 | 5min | a3 | 0m/s2 |
| L4 | 0mm | t4 | 5min | a4 | 0m/s2 |
| L5 | 0mm | t5 | 3min | a5 | 0m/s2 |
| L6 | 0mm | t6 | 2min | a6 | 0m/s2 |
Table 3
| H1 | 200mm | h1 | 3mm | P1 | 0.4MPa | p1 | 0.3MPa | t1 | 1min |
| H2 | 230mm | h2 | 2.8mm | P2 | 0.45MPa | p2 | 0.3MPa | t2 | 10min |
| H3 | 270mm | h3 | 2.5mm | P3 | 0.45MPa | p3 | 0.3MPa | t3 | 5min |
| H4 | 280mm | h4 | 2.3mm | P4 | 0.45MPa | p4 | 0.3MPa | t4 | 5min |
| H5 | 300mm | h5 | 1.9mm | P5 | 0.4MPa | P5 | 0.3MPa | t5 | 3min |
| H6 | 280mm | h6 | 1.5mm | P6 | 0.4MPa | p6 | 0.3MPa | t6 | 2min |
Table 4
Claims (7)
1. a kind of device of no mould blowing multi-curvature molded part, it includes：
Tank is molded, its top sets opening, sets air inlet pipe and pressure reducing valve, exhaust pipe and pressure-relief valve on side wall respectively；It is molded tank opening
Place sets protrusion along lateral wall ring；Further include a pressure ring being arranged in protrusion and the fixture supporting with pressure ring and protrusion；
Compressed air hose, is placed in shaping tank, including compressed-air hose and compressed air hard tube；The compressed air hard tube bag
Include the hose being connected between first segment L-shaped hard tube and second segment liftable hard tube and two sections of hard tubes；First segment L-shaped hard tube is another
One end is connected with compressed-air hose；The second segment liftable hard tube other end sets compressed air diffusion sprayer, which expands
Dissipate nozzle and be directed toward shaping upper end opening；Second segment liftable hard tube is controlled by lift servo motor and lifted；
The universal trolley of permanent magnet, is fixed on first segment L-shaped hard tube and is placed in shaping pot bottom；
Thread transmission, below shaping tank, including the base of threaded drive rod and fixed thread drive link, the bottom
Seat has screw thread；Electromagnet universal trolley is installed, the universal trolley of electromagnet is arranged on on the threaded drive rod
The underface of the universal trolley of opposite permanent magnet outside type tank；
Two-dimensional laser meter counter, is fixed on the universal trolley of electromagnet；
Horizontal servomotor, one end of its output shaft connection screw thread drive link, drives threaded drive rod to rotate, makes electromagnet universal
Trolley transverse shifting；
Servo longitudinal motor, its output shaft are connected on the other end base of relatively transverse servomotor by a helical gear, tiltedly
Gear is closely engaged with the screw thread below base, and servo longitudinal motor delivers power to base by helical gear, drives electromagnetism
The universal trolley of iron, threaded drive rod and horizontal servomotor vertically move at the same time；
Tele-control system, horizontal servomotor, servo longitudinal motor are electrically connected by frequency converter；Tele-control system point
It is not connected with pressure reducing valve, pressure-relief valve, lift servo motor, two-dimensional laser meter counter；
Spatial digitizer, is arranged at the top for the plate that shaping tank opening is fixed, and spatial digitizer captures the figure of plate surface
Picture is simultaneously transferred to tele-control system.
2. the device of no mould blowing multi-curvature molded part according to claim 1, it is characterised in that the second segment can
Lifting hard tube outer wall is equipped with screw thread；A helical gear, helical gear one end and the output axis connection of lift servo motor are further included, it is another
End is closely engaged with the screw thread on second segment liftable hard tube outer wall, and lift servo motor delivers power to the by helical gear
Two sections of liftable hard tubes, the hard tube lifting of control second segment liftable.
3. a kind of method of no mould blowing multi-curvature molded part, it includes the following steps：
S1：Preforming plate is fixed on shaping tank, then shaping tank is put into thermoforming ovens, is warming up to forming temperature,
According to preforming sheet metal thickness, corresponding soaking time is set；
S2：By in the three-dimensional on-line software in three-dimensional conversion of drawings to the tele-control system of multi-curvature molded part product, and
Molding part technological parameter in tele-control system, tele-control system is with time three-dimension varying compressed air diffusion sprayer
Position；
S3：Spatial digitizer is scanned preforming plate surface, obtains the feature image of plate surface, and feeds back to remote
Process control system；Tele-control system obtains the real-time forming height of plate surface, and with reference to rebound surplus, correction compressed air expands
Dissipate the gas flow of sprinkler height and nozzle；
S4：EP (end of program) postcooling cools down, and takes out molded part finished product.
4. the method for no mould blowing multi-curvature molded part according to claim 3, it is characterised in that in S2, long-range control
System processed is as follows with the process of time three-dimension varying compressed air diffusion sprayer position：Two-dimensional laser meter counter is universal by electromagnet
Trolley calculates correct output valve and exports in the location transmission of transverse axis, the longitudinal axis to tele-control system, tele-control system
To corresponding frequency converter, by Frequency Converter Control transverse direction servomotor, servo longitudinal motor, wherein, horizontal servomotor drives
Threaded drive rod rotates, and makes the universal trolley of electromagnet that transverse shifting occur；Servo longitudinal motor is by helical gear by power transmission
To base, the band universal trolley of motor magnet vertically moves；The universal trolley of electromagnet controls permanent magnet ten thousand in shaping tank by magnetic field
To the position of trolley, so as to control the compressed air diffusion sprayer on compressed air hard tube fixed on the universal trolley of permanent magnet to exist
Position on transverse axis, the longitudinal axis；Tele-control system adjusts the second segment liftable of compressed air hard tube by lift servo motor
Hard tube lifts and then controls the height of compressed air diffusion sprayer, so as to fulfill the position of three-dimension varying compressed air diffusion sprayer
Put.
5. the method without mould blowing multi-curvature molded part according to claim 3 or 4, it is characterised in that in S3, remotely
Control system is molded the pressure in tank by the pressure-relief valve control being molded on pot sidewall exhaust pipe, to adjust rebound surplus；Remotely
Control system adjusts the lifting of second segment liftable hard tube to proofread the height of compressed air diffusion sprayer by lift servo motor
Degree；Tele-control system adjusts the blow gas pressure in air inlet pipe by the pressure reducing valve being molded in pot sidewall air inlet pipe, so as to proofread
The gas flow of compressed air diffusion sprayer.
6. the method for no mould blowing multi-curvature molded part according to claim 3, it is characterised in that in S2, described three
Dimension on-line software includes CATIA softwares.
7. the method for no mould blowing multi-curvature molded part according to claim 3, it is characterised in that in S2, it is described into
Type part technological parameter includes：
1) forming temperature T；
2) soaking time t0；
3) lateral displacement of the universal trolley of electromagnet in different time sections is set to include apart from program segment, parameter：Shift length L,
Time t, acceleration a；
4) length travel of the universal trolley of electromagnet in different time sections is set to include apart from program segment, parameter：Shift length, when
Between t, acceleration a；
5) compressed air diffusion sprayer height H in different time sections, rebound surplus h, blow gas pressure P, pressure inside the tank p are set；
6) the scanning range parameter of spatial digitizer is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711283833.3A CN108000847A (en) | 2017-12-07 | 2017-12-07 | A kind of method and device of no mould blowing multi-curvature molded part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711283833.3A CN108000847A (en) | 2017-12-07 | 2017-12-07 | A kind of method and device of no mould blowing multi-curvature molded part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108000847A true CN108000847A (en) | 2018-05-08 |
Family
ID=62057007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711283833.3A Pending CN108000847A (en) | 2017-12-07 | 2017-12-07 | A kind of method and device of no mould blowing multi-curvature molded part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108000847A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539472A (en) * | 2019-08-15 | 2019-12-06 | 上海龙达塑料科技股份有限公司 | Air bag structure and blow molding method |
| CN110605840A (en) * | 2019-09-02 | 2019-12-24 | 上海龙达塑料科技股份有限公司 | Integrally-formed manufacturing method of refrigerator door, refrigerator door and refrigerator |
| CN115284580A (en) * | 2022-10-08 | 2022-11-04 | 张家港市联鑫塑料机械有限公司 | Injection blow molding intelligent manufacturing system based on remote monitoring |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1493547A1 (en) * | 2003-07-03 | 2005-01-05 | MBK Maschinenbau Koetke GmbH | Method and apparatus for producing hollow articles of thermoplastic material by suction blow moulding |
| CN1764498A (en) * | 2003-01-22 | 2006-04-26 | 瓦斯特能量系统有限公司 | Reactor |
| CN200981334Y (en) * | 2006-11-29 | 2007-11-28 | 华南理工大学 | Wind power traction three-dimensional blow molding device |
| US20110262574A1 (en) * | 2010-04-27 | 2011-10-27 | Krones Ag | Blowing machine |
| CN102285099A (en) * | 2011-07-28 | 2011-12-21 | 欧普照明有限公司 | Aluminothermic molding mold and molding method for blow molding mask of household ceiling light |
| CN207630486U (en) * | 2017-12-07 | 2018-07-20 | 锦西化工研究院有限公司 | A kind of device of no mold blowing multi-curvature molded part |
-
2017
- 2017-12-07 CN CN201711283833.3A patent/CN108000847A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1764498A (en) * | 2003-01-22 | 2006-04-26 | 瓦斯特能量系统有限公司 | Reactor |
| EP1493547A1 (en) * | 2003-07-03 | 2005-01-05 | MBK Maschinenbau Koetke GmbH | Method and apparatus for producing hollow articles of thermoplastic material by suction blow moulding |
| CN200981334Y (en) * | 2006-11-29 | 2007-11-28 | 华南理工大学 | Wind power traction three-dimensional blow molding device |
| US20110262574A1 (en) * | 2010-04-27 | 2011-10-27 | Krones Ag | Blowing machine |
| CN102285099A (en) * | 2011-07-28 | 2011-12-21 | 欧普照明有限公司 | Aluminothermic molding mold and molding method for blow molding mask of household ceiling light |
| CN207630486U (en) * | 2017-12-07 | 2018-07-20 | 锦西化工研究院有限公司 | A kind of device of no mold blowing multi-curvature molded part |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539472A (en) * | 2019-08-15 | 2019-12-06 | 上海龙达塑料科技股份有限公司 | Air bag structure and blow molding method |
| CN110605840A (en) * | 2019-09-02 | 2019-12-24 | 上海龙达塑料科技股份有限公司 | Integrally-formed manufacturing method of refrigerator door, refrigerator door and refrigerator |
| CN115284580A (en) * | 2022-10-08 | 2022-11-04 | 张家港市联鑫塑料机械有限公司 | Injection blow molding intelligent manufacturing system based on remote monitoring |
| CN115284580B (en) * | 2022-10-08 | 2022-12-27 | 张家港市联鑫塑料机械有限公司 | Injection blow molding intelligent manufacturing system based on remote monitoring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108000847A (en) | A kind of method and device of no mould blowing multi-curvature molded part | |
| CN105271654B (en) | The hot-press forming device of bend glass | |
| CN102602113B (en) | Decorative processing method for surface of large-size complex surface shell, surface shell and device | |
| CN205205013U (en) | Curved surface glass's hot briquetting equipment | |
| CN106890870B (en) | A kind of die face part springback compensation method based on ellipsoid mapped actuation | |
| CN207630486U (en) | A kind of device of no mold blowing multi-curvature molded part | |
| CN209599826U (en) | A kind of acrylic bathtub formation system | |
| CN101100110B (en) | Hot-pressed forming technology for three-dimension mobile phone screen lens | |
| CN208343423U (en) | A kind of water-saving PE pipeline water injector | |
| CN110386754A (en) | A kind of formation system of bottle Mechanism of I. S. Machine processed | |
| CN204178122U (en) | Be applicable to the film and the workpiece adherence device of image transfer exposure machine | |
| CN102452174B (en) | Air pressure shaping technology of carbon fiber product and glass fiber product and used die | |
| CN209409163U (en) | Injection mold for plastic cement | |
| CN109601000A (en) | Method and apparatus for bent sheet | |
| CN206677809U (en) | A kind of auxiliary material position correction mechanism | |
| CN207982134U (en) | A kind of memory bimetal leaf automatic moulding processing unit (plant) | |
| CN2506375Y (en) | Resh sand blasting core machine with constant sand blasting pressure | |
| CN205735713U (en) | A kind of convenient impression-taking apparatus for bowl-shape mould | |
| CN207942613U (en) | A kind of energy saving automatic type air spring vulcanizing mold | |
| CN206445152U (en) | The multidirectional Valve Block Mould structure of thin-wall stainless steel | |
| CN208529598U (en) | A kind of plastics rapid forming mold based on UG | |
| CN107252837B (en) | A kind of bulb docking purlin inner mold face manufacturing process | |
| CN219769008U (en) | Industrial pipeline production demoulding mechanism with quick cooling function | |
| CN220763399U (en) | Injection molding device for producing electronic connector shell | |
| CN214936993U (en) | Large-size curved glass forming device |
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 |