CN209158741U - One kind being used for hole blister high molecular polymer foam core material surface-sealing equipment - Google Patents
One kind being used for hole blister high molecular polymer foam core material surface-sealing equipment Download PDFInfo
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- CN209158741U CN209158741U CN201821365810.7U CN201821365810U CN209158741U CN 209158741 U CN209158741 U CN 209158741U CN 201821365810 U CN201821365810 U CN 201821365810U CN 209158741 U CN209158741 U CN 209158741U
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Abstract
The utility model discloses one kind to be used for hole blister high molecular polymer foam core material surface-sealing equipment, equipment includes driving device, heating system, the fixed thick system of servo, cooling system and electric control system, it realizes heating, fixed thick, cooling function, reaches the productive target of serialization.
Description
Technical field
The utility model relates to foam core material processing technique fields, specially a kind of to steep for hole blister high molecular polymer
Foam core surfaces plugging equipment.
Background technique
Foam core material polyethylene terephthalate (PET), there is good heat resistance and static and dynamic characteristics of mechanics, to close
Hole foamed material, but due to the limitation of foaming technique, abscess-size is generally large, and conventional thickness cutting is generally using crosscutting
Band saw, the surface after foam cutting can generate aperture and aperture is larger, and the cutting that the absorption of resin occurs mainly in core material is sudden and violent
On showing up, resin can fill and lead up exposed rough surface, thus cause Resin Absorbent amount increase, to final products bring weight and at
This challenge.
In traditional handicraft, face can not sealing of hole the problem of, the utility model be by improve foam core material surface processing
Equipment and choose technological parameter appropriate, the sealing of hole effect on the surface Lai Shixian meets the trend of product lightweight and low cost,
It realizes that serialization sealing of hole produces using biobelt press apparatus, while reaching higher machining accuracy, promote production capacity.
With the development that composite material is applied, foam sandwich construction is the most potential side of the current and following structural weight reduction
To, and traditional polyvinyl chloride (PVC) foam can not be showed excellent due to temperature tolerance and environmentally friendly recycling problem in hot setting system
Point, replaces, and polyethylene terephthalate (PET) becomes instantly the most due to higher technological temperature and recuperability
Popular sandwich structure core material.And actual product thickness is multifarious, is generally required to cut PET thickness.
The thickness of foam core material is cut, and generallys use following methods:
1) depth of foam, 0~1.5m/min of cutting speed, saw Cross cut band saw machine: are cut using the band saw blade of cycle operation
Piece width 10mm: saw blade thickness 1.25mm, cutting accuracy is +/- 0.25mm, if the higher foam core material of cut capacity, cutting
Resistance and cutting heat convergence, will lead to the softening of band saw blade, to bring Wave oscillation, be unable to reach wanting for higher precision
It asks.And process after surface, it is microcosmic it is micro- under can obviously observe that open-celled structure, verification experimental verification show that this aperture can be assembled
Resin is absorbed, plate is brought to inhale the increase of glue amount.
2) heated filament is cut: heated filament cutting is to reach cutting purpose using electrothermal wire heating, and heating wire cutting machine is led at present
It applies and foam, sponge, strainer, chemical fabric, the cutting of woven bag etc..Ni-Cd heating wire is mainly used, diameter is chosen at
Between 0.40mm~0.80mm.Machine is welded using fashioned iron, generally uses linear guide+ball leading screw driving, not only guarantees to pass
Dynamic precision more effectively guarantees the service life of machine；Using motor control, guarantees cutting accuracy and cuts the requirement of arbitrary graphic,
Up to same shape product can be cut simultaneously by 20 cutting wires；Cutting speed is between 50-149mm/min.
This processing method can be there are two drawback:
A. cutting speed is excessively slow, and with crosscutting according to 1000~1500mm/min cutting speed, heated filament cutting is unable to satisfy for comparison
Produce the requirement of the supply of material in enormous quantities；
B. how controlling the thickness of processing finished product can be huge challenge, and heated filament is under current state, higher temperature
Foam core material can be melted, for thickness loss's value with the diameter of heated filament, charging rate and environment temperature can all have larger difference, can not
Realization is precisely controlled.
Utility model content
The purpose of this utility model is to provide one kind to set for hole blister high molecular polymer foam core material surface-sealing
It is standby, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions:
One kind be used for hole blister high molecular polymer foam core material surface-sealing equipment, including driving device, heating system,
The fixed thick system of servo, cooling system and electric control system, the driving device include tension side wheel hub, driving end wheel hub and machine
Frame, suit operating has upper transmission pressure zone between tension side wheel hub above and driving end wheel hub, the tension side wheel hub in lower section
Suit operating is lower between driving end wheel hub transmits pressure zone；It is sequentially installed with and adds front to back certainly along the rotation direction of driving device
The fixed thick system of hot systems, servo and cooling system, the functional component of the fixed thick system of the heating system, servo and cooling system
It is placed in the back side of transmission pressure zone or lower transmission pressure zone.
As a further solution of the present invention: the heating system includes preheating area assembly and heats area assembly, in advance
Hot-zone component includes the preheating of internal filling circulating hot oil into wheel hub, the circumference of preheating into wheel hub be close to transmit pressure zone or
The back side of lower transmission pressure zone；The heating area assembly includes the internal heating for being passed through conduction oil to roller, and heating uses collet to roller
Structure heats and is close to transmit the back side of pressure zone or lower transmission pressure zone to the circumference of roller.
As a further solution of the present invention: the fixed thick system of the servo includes squeezing to roller and for detecting
Expect the automatic detection device of end foam core material thickness, the machine frame inside is equipped with symmetrical servo hydraulic oil cylinder, described
The output end of servo hydraulic oil cylinder is connected with the first roller seat, the first roller seat and extruding and is rotatablely connected to the both ends of roller, squeezes to roller
Circumference be close on transmit pressure zone or it is lower transmission pressure zone the back side.
As a further solution of the present invention: the cooling system include several pairs cooling to roller, cooling blower,
It is sprayed water installations and to roller distance regulating mechanism, several cooling blowers, Mei Geleng is equipped with to the intermediate region of roller in cooling
But the air port of blower is mounted on spraying water installations, the machine frame inside be equipped with it is symmetrical to roller distance regulating mechanism,
The second roller seat, the second roller seat and extruding is connected with to the output end of roller distance regulating mechanism to be rotatablely connected the both ends of roller, it is described
The cooling circumference to roller is close to transmit the back side of pressure zone or lower transmission pressure zone.
As a further solution of the present invention: the electric control system includes hydraulic control system, automatically controlled transmission
System, warm area control system and Thickness sensitivity regulating system.
A kind of technique carrying out hole blister high molecular polymer foam core material surface-sealing with above equipment, by heating,
Fixed thick and cooling step makes the upper and lower surfaces of foam core material hot melt occur and is lost and recrystallizes, realizes foam core material
Upper and lower surfaces sealing of hole, specific process step and technological parameter are provided that
S1, sheet fabrication: foam core material standard raw materials block carries out thickness direction cutting via Cross cut band saw machine cutting equipment,
Two parallel, rule apparent surfaces are formed, after processing, foam core material plate thickness is between 0~120mm；
S2, feeding: feeding of the foam core material plate through feed device under room temperature is laid in front end stage face, via
Feed device is fed to the tension side wheel hub of biobelt press along the length or width direction of foam core material plate；
S3, preheating: the foam core material plate after feeding enters preheating under the operating of upper transmission pressure zone and lower transmission pressure zone
Region carries out the pre-heat treatment to foam core material plate into wheel hub by upper and lower distribution preheating, and preheating temperature is set as 180
~200 DEG C；The running speed of upper transmission pressure zone and lower transmission pressure zone is set as 0.5~3 m/min；
S4, heating: the foam core material plate after the pre-heat treatment enters under the operating of upper transmission pressure zone and lower transmission pressure zone
Heating region heats roller to foam core material plate by upper and lower distribution several pairs heating, so that foam core material plate
Material surface reaches heat distortion temperature and generates part holt melt；Heating temperature is set as 210~230 DEG C, while guaranteeing foam core material
The temperature difference of the upper and lower surfaces of plate is no more than 2 DEG C；
S5, fixed thickness: the foam core material plate after heat treatment enters under the operating of upper transmission pressure zone and lower transmission pressure zone
Determine thickness region, specific thickness value is set by Thickness sensitivity regulating system, servo hydraulic oil cylinder starts work, adjusts extruding pair
The spacing of roller, automatic detection device detect the thickness of discharge end foam core material plate, and feed back to Thickness sensitivity regulating system, come
Precisely realize the fixed thick control of foam core material plate；Thickness value is set as the target thickness after plate sealing of hole plus thickness loss
Value, thickness loss's value of foam core material plate are set as 0.5~4mm；
S6, cooling: fixed thick treated that foam core material plate enters under the operating of upper transmission pressure zone and lower transmission pressure zone
Cooled region, using cooling blower blowing and spraying water installations spray water to upper transmission pressure zone and lower transmission pressure zone zone face into
Row cooling；
S7, deburring: foam core material plate after cooled region, complete sealing of hole, to the foam core material plate after sealing of hole into
Row deburring is cut.
As a further solution of the present invention: the foam core material is the extruded thermoplastic foam of closed-cell foam, choosing
With polyethylene terephthalate (PET), the density of foam core material is 60-300Kg/m3, foam core material plate thickness is 0-
120mm, with weld seam or without weld seam.
As a further solution of the present invention: the foam core material upper and lower surfaces can be laid with fiber reinforcement
Material, when perfusion, resin infiltration fiber and foam core material surface, foam core material surface can adsorb resin until solidification, the suction
Glue amount be after resin solidification in the face of foam core material upper and lower surfaces adsorbance.
As a further solution of the present invention: the foam core material upper and lower surfaces reach close to foam core material
The heat distortion temperature of material controls the heated time, using fixed thick cooling, makes the certain of foam core material upper and lower surfaces
Thickness hot melt is lost and recrystallizes, to realize the sealing of hole of upper and lower surfaces.
As a further solution of the present invention: the foam core material plate surface after processing in the step S1 is without beating
Mill and other surface treatments.
As a further solution of the present invention: via feed device along the length or width of plate in the step S2
Degree direction is fed to biobelt press tension side wheel hub, feed device be selected as crawler type feeding or other automatically or semi-automatically or simply
Artificial feed device.
As a further solution of the present invention: the foam core material plate after feeding is sent into biobelt in the step S3
The tension side wheel hub of press enters preheated zone under the operating of steel band or Teflon band, preheats to foam core material plate
Processing.
As a further solution of the present invention: the preheating is not provided with pressure and thickness, tension side wheel hub is to steel band
Or Teflon band upper and lower surfaces carry out heat application, steel band or Teflon band running speed are set as 0.5-3 ms/min.
As a further solution of the present invention: the steel band or Teflon band running speed are set as 2 ms/min of 1-
Clock.
As a further solution of the present invention: the heating roller in the step S4 can be substituted by IR infrared facility.
As a further solution of the present invention: heating region temperature is set as 225 DEG C of 220- in the step S4.
As a further solution of the present invention: thickness loss's value of foam core material is 1-3mm in the step S5.
As a further solution of the present invention: selecting room temperature water cooling, 0~5 degree Celsius of water at low temperature in the step S6
It is cold.
As a further solution of the present invention: the foam core material plate and vacuum infusion molding are used to production fibre
Reinforced resin based composite material sheet material is tieed up, the fiber is the fiber and its products such as glass fibre, carbon fiber and boron fibre, described
Resin is the synthetic resin matrixes such as unsaturated polyester resin, vinylite, phenolic resin and epoxy resin.
As a further solution of the present invention: the foam core material surface resin after the sealing of hole inhales glue amount by non-sealing of hole
Two surface 1300-1900g/m2, two surface resins after dropping to sealing of hole inhale glue amount 400-900g/m2。
Compared with prior art, the utility model has the beneficial effects that in processing, by raw material from left-hand delivery, up and down
Under the operating of steel band or Teflon band, raw material is fed forward by collective effect, and raw material passes through at preheating device, tension side wheel hub work
Make, to preceding delivering at heating device after raw material is heated up, to heating to conduction oil is passed through in roller, temperature is controlled in 210-
230 DEG C, since the fusing point of polyethylene terephthalate (PET) foam is between 250-255 DEG C, and the selection of heating temperature
Determine the effect of foam core material melt surface；Too low heating temperature is unable to reach melt surface；Excessively high heating temperature can be led
It causes melting excessively and foam size changes greatly, the stretching, extension of length and width direction can be generated, this is also product steady production
Avoid greatly, therefore, more appropriate temperature selection will will affect the quality of final products, and raw material continues to deliver into fixed thick device
In, hydraulic cylinder works drive the distance between steel band to reduce, and carry out fixed thickness to raw material, hot melt recrystallization can generate the folding of thickness
Damage, and foam core material hole sealing technology is exactly realized using losing for thickness, therefore the setting of thickness is extremely crucial, different thickness
Degree loss value also results in different sealing of hole effects.Thickness loss's value is that foam core material plate enters before biobelt press and after discharging
Thickness change difference.Lower thickness loss's value can reduce the effect of melt surface crystallization, and crystallized layer depth is thinning, inhale glue
It measures higher.But though the setting of higher thickness loss's value can significantly bring the reduction for inhaling glue amount, and thickness is lost, can be to material
The increase of the decline of peel strength and material cost between core filled composite material surface layer and core material is brought, so nor best
Selection, therefore, we prefer that 0.5-4mm can reach more preferably effect, it is fixed it is thick after the completion of, continue to deliver into cooling device
In, fog-spray nozzle is sprayed water from upper and lower both direction, is cooled down to steel band or Teflon band, and zone face is again to foam core material upper and lower surface
It is cooling.The utility model is a kind of equipment and technique for foam core material surface-sealing, is filled by setting preheating device, heating
Set, fixed thick device and cooling device etc., achieved the effect that reduce Resin Absorbent amount, solve in traditional handicraft can not sealing of hole
The problem of.
Subordinate list explanation
Table 1 is to inhale glue amount test result；
Table 2 is the test result that different-thickness loss value corresponds to peel strength.
Detailed description of the invention
Fig. 1 is the non-sealing of hole front micro-structure diagram of foam core material plate；
Fig. 2 is front micro-structure diagram after foam core material plate sealing of hole；
Fig. 3 is the non-sealing of hole side micro-structure diagram of foam core material plate；
Fig. 4 is foam core material plate sealing of hole trailing flank micro-structure diagram；
Fig. 5 is the structural schematic diagram of the utility model device；
Fig. 6 is the fixed thick system structure diagram of servo in the utility model device；
Fig. 7 is schematic diagram of cooling system structure in the utility model device；
Fig. 8 is the suction glue amount test schematic diagram of foam core material plate after sealing of hole；
Fig. 9 is the drum peel test schematic diagram of foam core material plate after sealing of hole；
Figure 10 is the microstructure layout drawing of foam core material plate；
Figure 11 is the drum peel test sample machining sketch chart of foam core material plate.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 5~7 are please referred to, the utility model provides a kind of technical solution: one kind is steeped for hole blister high molecular polymer
The equipment of foam core surfaces sealing of hole, including the fixed thick system of driving device, heating system, servo, cooling system and electrical control system
System, driving device include tension side wheel hub 1, driving end wheel hub 2 and rack 3, tension side wheel hub 1 and driving end wheel above
Suit operating has upper transmission pressure zone 4 between hub 2, passes under suit operating between the tension side wheel hub 1 and driving end wheel hub 2 of lower section
Send pressure zone 5；Steel band or Teflon band can be used in upper transmission pressure zone 4, and steel band or Teflon band can be used in lower transmission pressure zone 5；It uploads
It send pressure zone 4 and lower transmission pressure zone 5 to be kept in continuous operation, is sequentially installed with front to back certainly along the rotation direction of driving device
The fixed thick system 7 of heating system 6, servo and cooling system 8, the fixed thick system 7 of the heating system 6, servo and cooling system 8
Functional component is placed in the back side of transmission pressure zone 4 or lower transmission pressure zone 5, carries out heat by upper 4 or lower transmission pressure zone 5 of transmission pressure zone
The transmitting of amount and power.
It may be preferred that the heating system 6 includes preheating area assembly and heating area assembly, preheating area assembly is filled including inside
The preheating of circulating hot oil is infused into wheel hub, the circumference of preheating into wheel hub is close to transmit the back of pressure zone 4 or lower transmission pressure zone 5
Face, preheating are heated by hot-oil circulation, i.e. preheating to preheat steel band or Teflon band into filling hot-oil circulation in wheel hub, into
And realize the preheating to 16 surface of foam core material plate；The heating area assembly includes the internal heating for being passed through conduction oil to roller 9,
Heating using jacket structured, heat to roller 9 and is close to transmit the back side of pressure zone 4 or lower transmission pressure zone 5 to the circumference of roller 9.Heating
Jacket structured to the use of roller 9, admittance hot oil is that steel band or Teflon belt surface are heated to roller 9 and transferred heat in heating, then are passed through
The upper surface 10 and lower surface 11 of foam core material plate 16 are reached by zone face, are realized heat transfer, are reached to foam core material plate surface
Heating, all heating are respectively mounted driving to roller 9, operate synchronously with steel band or the holding of Teflon band, prevent friction zone face.
It may be preferred that the fixed thick system 7 of the servo includes squeezing to roller 13 and for detecting discharge end foam core material thickness
The automatic detection device of degree is equipped with symmetrical servo hydraulic oil cylinder 12, the servo hydraulic oil cylinder inside the rack 3
12 output end is connected with the first roller seat, the first roller seat and extruding and is rotatablely connected to the both ends of roller 13, squeezes the circumference to roller 13
The back side of pressure zone 4 or lower transmission pressure zone 5 is transmitted in abutting.Extruding is forced in roller 13 by hydraulic control system, is adjusted and is squeezed
To the spacing of roller 13, thus to control the distance between upper transmission pressure zone 4 and lower transmission pressure zone 5, the thickness of foam core material product
It is formed by the distance between upper transmission pressure zone 4 and lower transmission pressure zone 5；This hydraulic control system can monitor product thickness in real time simultaneously
It is automatic to carry out pressure adjustment.
Preferably, the cooling system 8 include several pairs cooling to roller 14, cooling blower, spraying water installations 15 and
To roller distance regulating mechanism, several cooling blowers, the air port of each cooling blower are equipped with to the intermediate region of roller 14 in cooling
Be mounted on spraying water installations 15, be equipped with inside the rack 3 it is symmetrical to roller distance regulating mechanism, to roller spacing tune
The output end of section mechanism is connected with the second roller seat, the second roller seat and extruding and is rotatablely connected to the both ends of roller 13, and the cooling is to roller
14 circumference is close to transmit the back side of pressure zone 4 or lower transmission pressure zone 5.
When work, cooling blower starting, wind mixed atomizing water directly drenches steel band or the Teflon band back side, realizes to zone face quick
It cools down, then cools down the upper surface 10 and lower surface 11 of foam core material plate 16 via the cooling of steel band or Teflon zone face, reach
It is required to product is cooling；All coolings simultaneously are mounted on driving to roller 14, operate synchronously with steel band or the holding of Teflon band；It is right
The servo hydraulic cylinder or ball screw component as lifting can be used in roller distance regulating mechanism, can be accurate to roller distance regulating mechanism
The cooling spacing to roller 14 of control, guarantees that steel band or Teflon band come into full contact with 16 surface of foam core material plate, reaches more preferably
Cooling effect；
Preferably, the electric control system includes hydraulic control system, automatically controlled transmission system, warm area control system and thickness
System arrangement in the prior art can be used in degree detection regulating system, these systems；All drivings and control element are mounted on
In main power control cabinet, speed control, the temperature setting of heating region, pressure of steel band or Teflon band are carried out by execute-in-place panel
Power is adjusted, the fixed thickness of foam core material plate is arranged and the online auto monitoring of discharge end plate thickness and adjusting etc.；Following technique ginsengs
Number setting inputs setting suitable for the parameter of operation panel.
A kind of technique carrying out hole blister high molecular polymer foam core material surface-sealing with above equipment, by heating,
Fixed thick and cooling step, makes the upper surface 10 of foam core material and lower surface 11 reach the thermal deformation temperature close to foam core material material
Degree, controls the heated time, using fixed thick cooling, makes the upper surface 10 of foam core material and the certain thickness hot melt of lower surface 11
It is lost and recrystallizes, to realize the sealing of hole of foam core material upper surface 10 and lower surface 11.This method is not changing foam core material
Mechanical performance under the premise of, realize foam core material in composite material vacuum perfusion process, resin is in foam core material upper surface
10 and lower surface 11 uptake decline: specific process step and technological parameter are provided that
S1, sheet fabrication: foam core material standard raw materials block carries out thickness direction via cutting equipments such as Cross cut band saw machines and cuts
It cuts, forms two parallel, rule apparent surfaces, 16 thickness of foam core material plate is between 0~120mm, surface free after processing
Polishing and other surface treatments；
S2, feeding: feeding of the foam core material plate 16 through feed device under room temperature is laid in front end stage face, warp
The tension side wheel hub 1 of biobelt press is fed to along the length or width direction of plate by feed device, feed device is general
For crawler type feeding or other automatically or semi-automatically or Easy manual's feed device；
S3, preheating: the foam core material plate 16 after feeding enters preheated zone under the operating of steel band or Teflon band, right
Foam core material plate carries out the pre-heat treatment, and preheating temperature is set as 180~200 DEG C, and preheating is not provided with pressure and thickness, preheating
Heat application is carried out to upper transmission pressure zone 4 and lower transmission pressure zone 5 respectively into wheel hub and then transfers heat to the upper table of foam core material plate 16
Face 10 and lower surface 11；The running speed of upper transmission pressure zone 4 and lower transmission pressure zone 5 is set as 0.5~3 m/min, can be into one
Preferably 1~2 m/min of step；
S4, heating: the foam core material plate 16 after the pre-heat treatment is in upper transmission pressure zone 4 and the lower operating for transmitting pressure zone 5
Under, into heating region, heating carries out at heating roller 9 to steel band or the heating of Teflon belt surface by upper and lower distribution number
Reason can also be used IR infrared facility and heat to steel band or Teflon belt surface, transfers heat to foam core material plate by steel band or Teflon
16 surface of material, so that 16 surface of foam core material plate reaches heat distortion temperature and generates part holt melt；The setting of heating region temperature
It is 210~230 DEG C, can is further preferably 220~225 DEG C, while guaranteeing the upper surface 10 and lower surface 11 of foam core material
The temperature difference be no more than 2 DEG C, guarantee better surface-sealing effect；
S5, fixed thickness: the foam core material plate 16 after heat treatment enters fixed thick region under steel band or the operating of Teflon band,
Specific thickness value is set by Thickness sensitivity regulating system, servo hydraulic oil cylinder 12 starts work, adjusts and squeezes to roller 13
Spacing, automatic detection device detect the thickness of discharge end foam core material plate 16, and feed back to Thickness sensitivity regulating system, come smart
Standard realizes the fixed thick control of foam core material plate 16；Thickness value is set as the target thickness after plate sealing of hole plus thickness loss
Value, thickness loss's value of foam core material plate 16 are generally 0.5~4mm, can further be preferably 1~3mm；Thickness loss's value
Be foam core material plate 16 enter biobelt press before and discharging after thickness change difference.
S6, cooling: fixed thick treated that foam core material plate 16 enters cooled region under steel band or the operating of Teflon band,
Upper transmission pressure zone 4 and lower 6 zone face of transmission pressure zone are carried out using the blowing of cooling blower and the spray water of spraying water installations 15 cold
But, spray water generally selects normal-temperature water, can also use 0~5 DEG C of water at low temperature；
S7, deburring: after foam core material plate 16 is via cooling zone, completing sealing of hole, since heating can generate the certain journey of plate
The length of degree and the expansion of width, so needing to carry out deburring to the foam core material plate 16 after sealing of hole to cut；
Wherein, the foam core material plate 16 is the extruded thermoplastic foam of closed-cell foam, is particularly suitable for poly- to benzene two
Formic acid glycol ester (PET), the density of foam core material are 60~300Kg/m3, foam core material plate 16 with a thickness of 0~120mm,
With weld seam or without weld seam；
The foam core material plate 16 is suitable for vacuum infusion molding process for compound, 10 He of upper surface of foam core material plate 16
Lower surface 11 is uniformly laid with fibre reinforced materials, when perfusion, the table of resin infiltration fibre reinforced materials and foam core material plate 16
Face, 16 surface of foam core material plate can adsorb resin until solidification, the suction glue amount are after resin solidification in foam core material plate
Adsorbance in the upper surface 10 of material 16 and the face of lower surface 11.
Foam core material plate 16 and vacuum infusion molding process for compound are used to production fiber-reinforced resin matrix compound material plate,
The fibre reinforced materials is the fiber and its products such as glass fibre, carbon fiber and boron fibre, and the resin is unsaturation
The synthetic resin matrix such as polyester resin, vinylite, phenolic resin and epoxy resin；
Foam core material surface resin after sealing of hole inhales glue amount by two 1300~1900g/m of surface of non-sealing of hole2, drop to
Two surface resins after sealing of hole inhale 400~900g/m of glue amount2。
The working principle of the utility model is: raw material is sent into from feeding side in processing, in upper transmission pressure zone 4 under
Under the operating for transmitting pressure zone 6, raw material is fed forward by collective effect, and raw material passes through preheating device, and preheating carries out pre- into wheel hub
Heat, to preceding delivering into heating device after raw material is heated up, to heating to being passed through conduction oil in roller 9, by temperature control 210~
230 DEG C, since the fusing point of foam core material is between 250~255 DEG C, and the selection of heating temperature determines the effect of foam surface melting
Fruit；Too low heating temperature is unable to reach melt surface；Excessively high heating temperature will lead to melting excessively and foam core material size
It changes greatly, the stretching, extension of length and width direction can be generated, this is also avoiding greatly for product steady production, therefore, more appropriate
Temperature selection will will affect the quality of final products；
Raw material continues to deliver into the fixed thick system of servo, servo hydraulic oil cylinder 12 works, adjust squeeze to roller 13 away from
From, and then the spacing for transmitting pressure zone 4 and lower transmission pressure zone 6 is adjusted, fixed thickness is carried out to raw material, hot melt recrystallization can generate thickness
Lose, and foam core material hole sealing technology exactly realizes that therefore, the setting of thickness is extremely crucial, no using losing for thickness
Same thickness loss's value also results in different sealing of hole effects.Lower thickness loss's value can reduce the effect of melt surface crystallization
Fruit, crystallized layer depth is thinning, and it is higher to inhale glue amount.But though the setting of higher thickness loss's value can significantly bring the reduction for inhaling glue amount,
But losing for thickness, can material strips be come with the increase of cost, nor optimal selection, therefore, it is recommended that thickness loss's value is
0.5~4mm can reach more preferably effect, after the completion of fixed thickness, continue to deliver into cooling system, there is spraying water installations 15
Fog-spray nozzle go to upper and lower both direction water spray, cool down to steel band or Teflon band, then by zone face indirectly to foam core material plate
16 upper and lower surface of material is cooling, completes sealing of hole.
The utility model technique carries out sealing surface pore using double-steel belt pressing machine or Teflon band press, in actual verification
In, double-steel belt pressing machine or Teflon can obtain ideal foam core material surface-sealing effect with press.
Double-steel belt pressing machine/Teflon illustrates with press: different from traditional intermittent press, continous way band press can be
In whole effective lengths, operated with fixed pressure and temperature, the product produced except size span greatly in addition to, moreover it is possible to consumption is more
Few thermal energy and electric energy.Production efficiency can be greatly improved in continous way production method, as much as possible the elimination non-productive work time.Continuously
Formula band press system is with being widely used in high-strength composite new material, engineering plastics, artificial marble, fiberboard, rubber
The industries such as the building materials such as plate, industrial laminates, ceramic tile, aerospace, high-speed rail motor-car, automobile interior decoration.
The structural principle of double-steel belt pressing machine: (1) comprising automatic feeding, hot melt multi-procedure, the fixed thick function of hot pressing, cold
But the processes such as sizing；(2) thickness of product is formed depending on the distance between upper steel band and lower steel band；Side anti-overflow device is main
For determining thickness；(3) product successively passes through after the processes such as controllable polymerization, solidification and cooling, completes required specification.
The technique of the utility model is to be heated at high temperature that foam core material surface cells second melting can be achieved by biobelt press,
And pressure appropriate and thickness loss, foam core material surface can be generated to secondary crystallization, form crystallizing layer.Due to crystallizing layer
In the presence of, can significantly reduce surface inhale glue amount, achieve the effect that sealing of hole.
Biobelt press selects drum peel to test and inhale finger of the glue amount test as evaluation the effect of foam core material sealing of hole
Mark, lower suction glue amount and preferable peel strength are generally able to satisfy compound sandwich structure designer technical requirements.
Inhale glue amount test: glue amount is inhaled on foam core material surface will determine the weight of perfusion or compound rear product, and traditional
PVC foam possesses more tiny surface cells, and it is the blade core material approved in current wind-powered electricity generation field that suction glue is lower.Here it will put down
The suction glue amount of foam core material after row comparison sealing of hole.General process is first to cut out 500mm × 500mm as required (or other are more closed
Suitable size) foam plate 21, measure size and weight, calculate density；Then from top to bottom according to " flow-guiding screen 19+ is demoulded
The sequence of cloth 20+ foam plate 21+ release cloth 20+ flow-guiding screen 19 " carries out paving, last forming vacuum bag 18, by leakage pressure examination
It tests, in the case where confirming the gastight situation of vacuum bag, starts that resin is perfused, after perfusion, solidified at normal temperature.After perfusion
Core material cut, measurement perfusion after surface density, before core material surface density-perfusion after foamed resin uptake=perfusion
Core material surface density.
Specific material therefor is as follows: 100 parts of Ashland Arotool 1013INF vinylite, 2 parts of Akzo
Nobel methyl ethyl ketone peroxide (MEKP) curing agent, 500 × 500mm 105kg/m3Density wears platinum Divinycell PET hole sealing plate
21、60g/m2Prestige release cloth 20,180g/m are helped in Jiaxing219, the 75 μm of Tyke Ai Er Wrightlon 7400 of prestige flow-guiding screen are helped in Jiaxing
Through Tongxiang blue stone LDPE pipe 17, the Tyke 3mm x 12mm Ai Er AT-200Y vacuum seal rubber belt 22 in nylon vacuum bag 18,12m.
Specific step is as follows: measurement perfusion before foam core material plate size and weight, and record cut vacuum bag 18,
Flow-guiding screen 19, release cloth 20 and LDPE pipe 17 are successively laid with: 180g/m from top to bottom on glass table face2Prestige is helped in Jiaxing
Flow-guiding screen 19,60g/m2Prestige release cloth 20,500 × 500mm 105kg/m are helped in Jiaxing3Density wears platinum Divinycell PET sealing of hole
Plate 21,60g/m2Prestige release cloth 20,180g/m are helped in Jiaxing2Prestige flow-guiding screen 19, connection exhaust tube and injected rubber hose 17, pumping are helped in Jiaxing
Pipe is connected to external resin collector and sticks sealant tape 22 in vacuum bag region surrounding, and adhesive tape will be across pumping and injected rubber hose 17
Vacuum bag 18 is sealed using sealant tape 22 and is vacuumized, and checks that 18 air-tightness of vacuum bag according to weight ratio 100:2, is mixed
Stirring vinylite and methyl ethyl ketone peroxide curing agent are closed, injected rubber hose is put into mixed resin barrel, resin is perfused, directly
To top and bottom release cloth 20 and flow-guiding screen 19 all infiltration, pinch off injected rubber hose 17 demoulds after the completion of resin solidification, according to
The foam core material plate 21 of surface cure resin is cut and is weighed by secondary removing flow-guiding screen 19 and release cloth 20, and is recorded
Data, which calculate, inhales glue amount, i.e. core material surface density before core material surface density-perfusion after foamed resin uptake=perfusion is specifically inhaled
Glue amount test result is as shown in table 1.
Table 1: glue amount test result is inhaled.
Climbing drum peel strength test: test is sampled according to ASTMD1781 standard, it is therefore intended that investigate glass reinforced plastic panel
With the adhesive property of foamed bulk.Test will be perfused into sandwich, and panel uses 1 layer of three axis cloth, core thickness 20mm,
The big plate of 400 × 500mm is made.It is required that as follows: (1) using+three axis glass of foam plate+resin；(2) 0 ° of glasses towards core material,
And it is consistent with peeling direction；(3) splicing seams are oriented parallel to peeling direction.By setting different thickness loss's values, Lai Jinhang
Test, thickness loss's value are derived from for the difference of biobelt press fixed thick value and unwrought product thickness value, thickness loss's value decision sealing of hole
The effect on surface is one of parameter mostly important in hole-sealing technology.Different-thickness loss value corresponds to the test knot of peel strength
Fruit is shown in Table 1.
Specific material is as follows: 872g/m2Three axial directions are macro to send out E-Glass glass-fiber-fabric 27,20mm 105kg/m in length and breadth3Density is worn
28,100 parts of 035C writing brushes of platinum Divinycell PET foam core material, 27,32 parts of 037C writing brushes of gloomy Epikote epoxy resin are gloomy
Epikure epoxy curing agent, 60g/m2Prestige release cloth 26,180g/m are helped in Jiaxing225,75 μm of Ai Er of prestige flow-guiding screen are helped in Jiaxing
Tyke7400 nylon vacuum bags 24, the Tyke 3mm x 12mm Ai Er AT-200Y vacuum seal rubber belt 29.
Specific laying structure are as follows: 872g/m2Three axial directions are macro to send out 27,1 layer of E-Glass glass-fiber-fabric in length and breadth；20mm 105kg/m3
Density wears 28,1 piece of platinum Divinycell PET foam core material；872g/m2Three axial directions are macro to send out E-Glass glass-fiber-fabric 27,1 in length and breadth
Layer.
Specific step is as follows: glass-fiber-fabric 27, vacuum bag 24, flow-guiding screen 25 and release cloth 26 are cut in heating mould, from
It is successively laid under above: 180g/m2Prestige flow-guiding screen 25,60g/m are helped in Jiaxing2Prestige release cloth 26,872g/m are helped in Jiaxing2Three is axial macro
Send out E-Glass glass-fiber-fabric 27,20mm 105kg/m in length and breadth3Density wears platinum Divinycell PET foam core material 28,872g/m2Three
It is axially macro to send out E-Glass glass-fiber-fabric 27,60g/m in length and breadth2Prestige release cloth 26,180g/m are helped in Jiaxing2Prestige flow-guiding screen 25 is helped in Jiaxing；?
24 region surrounding of vacuum bag sticks sealant tape 29, seals vacuum bag 24 using sealant tape 29 and vacuumizes, and checks
24 air-tightness of vacuum bag is mixed the gloomy epoxy resin host agent of writing brush and epoxy curing agent, will infuse according to weight ratio 100:32
Sebific duct is put into mixed resin barrel, and resin is perfused, until all infiltration completion rear mold 30 starts top and bottom glass-fiber-fabric 27
Heating carries out resin solidification under 70 degrees celsius and demoulds after the completion of resin solidification, successively removes flow-guiding screen 25 and demoulding
Cloth 26 cuts glass surface layer sandwich boards, according to ASTM D1781 standard, having a size of 350mm × 75mm, while both ends
Each cutting 35mm notch, clamps, as shown in figure 11 for fixture.The test of roller glass is carried out according to ASTM D1781 standard.Tool
Body test result is as shown in table 2.
Table 2: different-thickness loss value corresponds to the test result of peel strength.
From the point of view of the above drum peel is tested and inhales glue amount test data, two-sided suction glue amount: 400-900g/m2, preferably
Parameter setting is generally as follows: biobelt press temperature is set in: 210-230 DEG C；Charging rate setting: 0.5-3m/min；Thickness damage
Consumption value setting: 0.5-4mm；In the section of the above parameter setting, generally can get ideal climbing drum peel strength and
Inhale glue amount value.
Microphoto: in order to observe more obvious sealing of hole effect, by the way of shooting microphoto, in microscopic state
The state of lower comparison sealing of hole and non-sealing of hole, the variation of careful observation foam core material surface structure, shows the mechanism of sealing of hole.Specifically ask
- Fig. 4 refering to fig. 1.
In terms of microstructure photograph, in the front of sealing of hole sample, open cells before sealing of hole, due to using biobelt press
Heating, fixed thick and cooling technique, after sealing of hole, hence it is evident that observe, open celled foam hot melt is hole-closing structure；Pass through sealing of hole simultaneously
From the point of view of the side of sample, surface layer open cells before non-sealing of hole, by using the heating of biobelt press, fixed thick and cooling work
Skill has changed into surface layer closed pore.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. one kind is used for hole blister high molecular polymer foam core material surface-sealing equipment, including driving device, heating system, watches
The fixed thick system of clothes, cooling system and electric control system, it is characterised in that: the driving device includes tension side wheel hub (1), drives
Moved end wheel hub (2) and rack (3), suit operating has upper transmission between tension side wheel hub (1) above and driving end wheel hub (2)
Pressure zone (4) transmits pressure zone (5) under suit operating between the tension side wheel hub (1) and driving end wheel hub (2) of lower section；Along drive
The rotation direction of dynamic device is sequentially installed with the fixed thick system (7) of heating system (6), servo and cooling system (8), institute front to back certainly
State the fixed thick system (7) of heating system (6), servo and cooling system (8) functional component be placed in transmission pressure zone (4) or under
Transmit the back side of pressure zone (5).
2. it is according to claim 1 a kind of for hole blister high molecular polymer foam core material surface-sealing equipment, it is special
Sign is: the heating system (6) includes preheating area assembly and heating area assembly, and preheating area assembly includes internal filling cycling hot
Into wheel hub, the circumference of preheating into wheel hub is close to transmit the back side of pressure zone (4) or lower transmission pressure zone (5) for the preheating of oil；Institute
Stating heating area assembly includes the internal heating for being passed through conduction oil to roller (9), and roller (9) using jacket structured, are heated to roller in heating
(9) circumference is close to transmit the back side of pressure zone (4) or lower transmission pressure zone (5).
3. it is according to claim 1 a kind of for hole blister high molecular polymer foam core material surface-sealing equipment, it is special
Sign is: the fixed thick system (7) of the servo include squeeze to roller (13) and for detect discharge end foam core material thickness from
Motion detection device, the rack (3) is internal to be equipped with symmetrical servo hydraulic oil cylinder (12), the servo hydraulic oil cylinder
(12) output end is connected with the first roller seat, the first roller seat and extruding and is rotatablely connected to the both ends of roller (13), squeezes to roller (13)
Circumference be close on transmit pressure zone (4) or it is lower transmission pressure zone (5) the back side.
4. it is according to claim 1 a kind of for hole blister high molecular polymer foam core material surface-sealing equipment, it is special
Sign is: the cooling system (8) includes several pairs of cooling to roller (14), cooling blower, spraying water installations (15) and right
Roller distance regulating mechanism is equipped with several cooling blowers, the air port of each cooling blower to the intermediate region of roller (14) in cooling
Be mounted on spraying water installations (15), be equipped with inside the rack (3) it is symmetrical to roller distance regulating mechanism, between roller
The output end of distance regulating mechanism is connected with the second roller seat, the second roller seat and extruding and is rotatablely connected to the both ends of roller (13), described cold
But the circumference of roller (14) is close to transmit the back side of pressure zone (4) or lower transmission pressure zone (5).
5. it is according to claim 1 a kind of for hole blister high molecular polymer foam core material surface-sealing equipment, it is special
Sign is: the electric control system includes hydraulic control system, automatically controlled transmission system, warm area control system and Thickness sensitivity tune
Section system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821365810.7U CN209158741U (en) | 2018-08-23 | 2018-08-23 | One kind being used for hole blister high molecular polymer foam core material surface-sealing equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821365810.7U CN209158741U (en) | 2018-08-23 | 2018-08-23 | One kind being used for hole blister high molecular polymer foam core material surface-sealing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108890951A (en) * | 2018-08-23 | 2018-11-27 | 瑞典戴铂国际有限公司 | One kind being used for hole blister high molecular polymer foam core material surface-sealing equipment and technique |
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2018
- 2018-08-23 CN CN201821365810.7U patent/CN209158741U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108890951A (en) * | 2018-08-23 | 2018-11-27 | 瑞典戴铂国际有限公司 | One kind being used for hole blister high molecular polymer foam core material surface-sealing equipment and technique |
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