CN103302877B - There is the co-curing composite element manufacture craft that complex pattern damping diaphragm embeds - Google Patents
There is the co-curing composite element manufacture craft that complex pattern damping diaphragm embeds Download PDFInfo
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- CN103302877B CN103302877B CN201310209550.XA CN201310209550A CN103302877B CN 103302877 B CN103302877 B CN 103302877B CN 201310209550 A CN201310209550 A CN 201310209550A CN 103302877 B CN103302877 B CN 103302877B
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Abstract
The invention discloses a kind of complex pattern damping diaphragm manufacture craft in embedded co-curing composite structure, it comprises rubber roll feeding from viscoplasticity glue material solution groove, reticulate pattern rolls on material, printing cylinder prints out the damping diaphragm of different-thickness and geometrical pattern on the surface at material prepreg, material prepreg after wet type is dried and dry type is dried is through thickness calibrated detector, just define the material prepreg with damping diaphragm layer, and the passing into of high-temperature steam in wet type drying tower, make with adhesive solvent volatilization volatile on damping diaphragm layer material prepreg, by heat exchanger, oil mixing with water gas in wet type drying tower is become liquid, through oil water separator by the organic solvent recycling in viscoplasticity glue material solution, this technique is except completing complicated damping diaphragm and making, the organic solvent recycling that can also will use in production, for the making of the large damp composite material test specimen of high rigidity is laid a good foundation.
Description
Technical field
The present invention relates to a kind of Control Technique of Vibration and Noise, especially a kind of co-curing composite element manufacture craft that there is complex pattern damping diaphragm and embed.
Background technology
At present, viscoelastic damping film and material prepreg are mainly laid according to design by embedded co-curing damp composite material processing technology, in autoclave, then adopt heating, pressurize and vacuumize its co-curing.In general, it is active that the continuous damping diaphragm that pressed disc method obtains partly can reduce its surface molecular, its inter-layer bonding force is relatively weak compared with spread coating, thus the damping capacity of total can be reduced because the detrusion of viscoelastic material reduces, although spraying/spread coating can improve the activity on continuous damping diaphragm surface, but its production efficiency and machining accuracy lower, be also difficult to the damping diaphragm or the grid damping diaphragm structure that manufacture complicated perforation pattern.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of co-curing composite element manufacture craft having complex pattern damping diaphragm and embed is provided, this technique uses roll printing technology viscoelastic damping glue material solution to be printed on the damping diaphragm structure of complicated perforation pattern material prepreg making geometrically period profile, embedded co-curing composite damping structure is made to increase structural damping under the prerequisite reducing overall structure rigidity hardly, and the composite material test piece increased substantially with the embedding of complex pattern damping diaphragm manufactures effect and precision, the technological problems of the viscoelastic damping film accurately making complex geometry pattern can be solved simultaneously, and can by organic solvent recycling volatile in manufacturing process.
For achieving the above object, the present invention adopts following technical proposals:
Have the co-curing composite element manufacture craft that complex pattern damping diaphragm embeds, step is as follows:
1) damping material sizing material is dissolved in organic solvent forms the former glue material solution of damping;
2) charging, by step 1) in the former glue material solution of damping that formed by be immersed in rubber roll in sizing material groove and reticulate pattern roll between Structure deformation deliver to reticulate pattern and roll;
3) roll printing, reticulate pattern rolls on and is covered with equally distributed reticulate pattern, the former glue material solution of damping that rubber roll can be sent here by picturesque disorder reticulate pattern is equably deposited and is contained in the groove of reticulate pattern, when reticulate pattern rolls with plate surface Structure deformation on printing cylinder, be contained in reticulate pattern to roll the former glue material solution of damping in groove and just spread upon on the convex surface of printing cylinder forme equably, by the forme on printing cylinder and material prepreg Structure deformation, equably former for the damping spread upon on the forme convex surface of printing cylinder glue material solution can be printed on material prepreg surface and form one deck damping patterned films,
4) wet type heating, drying, by wet type drying tower, is passed into steam to the material prepreg being printed on damping patterned films and dries, after solvent volatilization, reclaimed by volatile organic solvent by recovery process;
5) dry type heating, drying, steam on material prepreg with damping patterned films is dried by recycling dry type drying oven, make viscoelastic material partial vulcanization simultaneously, so just form the damping diaphragm with geometrical pattern on material prepreg surface;
6) the damping diaphragm thickness with geometrical pattern is checked whether to meet design requirement;
7) if the 6th) step inspection do not meet design requirement, then return the 3rd) repeat above-mentioned steps;
8) rolling, if the 6th) step inspection meets design requirement, then will the material prepreg harvest volume of band pattern damping diaphragm, the composite element that there is complex pattern damping diaphragm and embed is made into finally by co-curing reaction.
Described step 1) in damping material sizing material be by butyl rubber and the chlorinated scoline mixture as main component, this mixture is identical with the viscoelastic material in " manufacture craft of embedded co-cured high damping composite laminates structure " (ZL201010177278.8), and organic solvent is No. 120 gasoline.In order to obtain moderate viscosity and the damping material solution of easily printing, elastomeric compound must be dissolved in organic solvent according to a certain percentage, the optimal dissolution ratio being gone out damping material and solvent by experimental exploration is 30g damping material sizing material: 125ml gasoline, and damping material sizing material is dissolved in strict accordance with aforementioned proportion the former glue material solution of viscoelastic damping that organic solvent forms moderate concentration.In order to accurately control the thickness of damping diaphragm after a roll printing, except the concentration of the former glue material solution of damping is precisely controlled, also to control the environment temperature of printing cylinder, making the viscosity that the former glue material solution of viscoelastic damping keeps relative stability.
Described step 2) in, by the taper locating dowel on printing cylinder and the circular locating openings on material prepreg, control relative position between material prepreg and the forme of roll printing damping diaphragm pattern, by be immersed in rubber roll in sizing material groove and reticulate pattern roll between Structure deformation former for the damping of viscous state glue material solution delivered to reticulate pattern roll.Equally distributed reticulate pattern is covered with because reticulate pattern rolls on, so equably reticulate pattern can be rolled surface damp virgin rubber solution to roll the plate surface Structure deformation with printing cylinder by reticulate pattern, roll damping glue material solution in little groove just spread upon on the convex surface of printing cylinder forme equably by being contained in reticulate pattern, due to the Structure deformation on roll printing forme and material prepreg surface, just former for the damping of roll printing plate surface glue material solution is printed on material prepreg surface.
Owing to using roll printing technology damping material solution can be printed on material prepreg, but prepreg is here rolling, and the damping layer finite thickness at every turn printed, the damping diaphragm thickness of design be reached, carry out repeatedly roll printing; In order to make to keep certain relative position between the forme of repeatedly roll printing and material prepreg, here propose to locate in the verge-perforated mode of material prepreg, corresponding taper locating dowel is provided with at two of printing cylinder, just in time with the circular locating openings alignment on material prepreg both sides, when roll printing, taper locating dowel on printing cylinder is just in time engaged with the circular locating openings on material prepreg, prevent there is relative sliding between printing cylinder and material prepreg on the one hand, affect damping patterned films quality; On the other hand, when the thickness of damping patterned films is different, can guarantee to keep stable position relationship between the forme of repeatedly roll printing and impressing pattern by edge-punching.
Described rubber roll is outside steel axle center, cover the uniform rubber layer of one deck, and covering rubber layer outside it is polyurethane rubber layer or silastic-layer.
Because rubber roll is that part is immersed in damping material virgin rubber solution, when rubber roll rotates, damping virgin rubber solution can contact by rolling with the reticulate pattern of material loading by rubber roll, evenly virgin rubber solution is transported to reticulate pattern rolls surface, equally distributed reticulate pattern is covered with because reticulate pattern rolls on, so equably reticulate pattern can be rolled surface damp virgin rubber solution to roll the plate surface Structure deformation with printing cylinder by reticulate pattern, roll damping glue material solution in little groove just spread upon on the convex surface of printing cylinder forme equably by being contained in reticulate pattern, last layer damping virgin rubber solution is just coated with equably at the plate surface of printing cylinder, due to the Structure deformation on roll printing forme and material prepreg surface, just former for the damping of roll printing plate surface glue material solution is printed on material prepreg surface, as long as the concentration of former glue material solution and viscosity control constant, the thickness of the former rubber membrane of the damping of each roll printing on material prepreg is a definite value, when the design thickness of damping diaphragm is thicker, by the location in taper locating dowel and material prepreg limit between circular locating openings, relative position relation when ensure that repeatedly roll printing between forme and material prepreg roll printing pattern, thus achieve the accurate control of roll printing thickness.
Described step 3) in roll printing adopt exactly roller printing technology by former for damping glue material solution roll printing material prepreg surface, thus accurately print out the damping diaphragm with geometrical pattern and thickness variable on material prepreg surface, make the overall mechanics property retention of embedded co-curing composite damping structure optimum.
Described reticulate pattern rolls surface uniform and is dispersed with fine and close reticulate pattern, is referred to as " glue hole ", and these glue hole and in press play a part storage glue, even glue and quantitatively pass glue just; Glue hole is carve along with axis direction at 45 °, and the partition wall between glue hole is called " leader ", and the area of leader follows the shape in glue hole relevant; Be store the former glue material solution of damping in glue hole at the groove of reticulate pattern, and reticulate pattern roll surface other places can't store unnecessary solution, rolled and the forme Structure deformation on printing cylinder by reticulate pattern, spread upon on forme with reticulate pattern being rolled the damping sizing material dissolution homogeneity on surface.
Described step 3) middle printing cylinder forme making, by numerical-control processing method, pattern is engraved in plate surface according to design drawing, and forme is fixed on the liner of printing cylinder, when roll printing, material prepreg is passed by evenly and is contacted with forme under the drive of pinch roll with print roller under printing cylinder, and forme is along with printing cylinder Structure deformation on material prepreg, the forme pattern of such design is just printed on material prepreg equably, thus just form on its surface the damping rubber membrane that one deck has certain geometrical pattern, the composite element making embedded for complex pattern damping diaphragm lays the foundation.
Described step 4) in wet type to dry be volatilized from the material prepreg after roll printing by volatile organic solvent, form organic solvent (this patent uses No. 120 gasoline) gas and steam mist at the tower top of wet type drying tower.For ensureing the security of process, enter air after avoiding organic solvent (as No. 120 gasoline) to volatilize and pollute the generation with fire, the oil mixing with water gas that the present invention produces wet type drying tower, water-oil separating is carried out, by organic solvent recycling by heat exchanger cooling and oily-water seperating equipment; The technological parameter of wet type drying tower is, for No. 120 gasoline as organic solvent, the steam of 110-130 DEG C is passed in the middle part of wet type drying tower, 65 ~ 80 DEG C should be remained at the bottom temp of wet type drying tower, middle portion temperature should remain on 80 ~ 100 DEG C, and head temperature should remain on 100 ~ 130 DEG C.
Water-oil separating in described oily-water seperating equipment, roll printing is had the material prepreg of damping diaphragm pattern through wet type drying station, utilize and pass into steam in drying tower, make the organic solvent evaporation in damping sizing material, the mist of organic solvent and steam is formed together with steam, heat exchanger is discharged to by oil mixing with water steam outlet, the mist cooling of organic solvent and steam is made to form liquid organic solvent and aqueous mixtures, this liquid organic solvent and aqueous mixtures are through oily-water seperating equipment, thus reach the object be separated with damping sizing material by organic solvent.Prepreg then will carry out dry type oven dry through hot air apparatus or infrared facility again, makes the partial vulcanization of damping sizing material, remains in the steam on material prepreg after removing wet type oven dry simultaneously.
Described step 5) in dry type dry be that the prepreg that roll printing is good first carry out step 4) wet type dry, then dry type is dried, to remain in the steam on prepreg after removing wet type oven dry, its objective is the state in order to make the sulfuration of damping sizing material forming section, such one side once can verify measurement by thickness correction measurement mechanism to thickness, and the position excessive to thickness corrects, the prepreg thickness uniformity making this roll printing good, when also preventing on the other hand roll printing next time, damping material sticks on the surface of lower road roll printing forme, the material prepreg of thickness measure is under the drive of pinch roll, enter roll printing district next time, roll printing is next time carried out again according to said process, such repetition, require until damping layer thickness reaches design size, finally can print off complex-shaped damping patterned layer.
When the thickness requirement of damping diaphragm is thicker, by the method for repeatedly roll printing, the damping layer thickness of embedding is met design requirement.Thus the damping diaphragm of certain uniform thickness is formed on material prepreg surface, embedded co-curing damp composite material test specimen is made, to reach the object improving embedded co-curing composite damping structure overall dynamics performance by curing process in autoclave.
Dry type furnace drying method and resin prepreg material stoving process similar, but technological parameter is different from the drying parameter of prepreg, its main purpose is vapored away in dry type stoving process by moisture residual in wet type stoving process, makes the partial vulcanization of damping sizing material, in order to avoid affect the carrying out of subsequent technique simultaneously.Dry type drying oven technological parameter is, in tower stove, bottom temp should remain on 40 ~ 60 DEG C, and middle portion temperature should remain on 60 ~ 100 DEG C, and upper temp should remain on 100 ~ 120 DEG C; In Horizontal drying furnace, laying import, outlet temperature should remain on 60 ~ 100 DEG C, and middle portion temperature should remain on 100 ~ 120 DEG C.By prepreg good for roll printing by after oven dry wrap-up, just produce the material prepreg with damping diaphragm pattern, and the organic solvent dissolving damping sizing material is carried out recycling.
According to the size of producing damping layer thickness, the present invention proposes the manufacture craft that complex pattern damping diaphragm in embedded co-curing composite material test piece produced automatically by many covers, can adopt this roll printing production line of material prepreg Multiple through then out, realize the making with thicker damping diaphragm material prepreg; Also can use once by production line (line having multiple tracks roll printing device), realize the making with thicker damping diaphragm material prepreg.
Roll printing well and the material prepreg of having dried is transported to wrap-up the most at last, under the drive of material receiving roller, carries out rolling.
The present invention proposes a kind of processing technology being embedded with the material prepreg of complex pattern damping diaphragm completely newly, in order to ensure the positioning precision of prepreg, circular locating openings is respectively equipped with on prepreg both sides, roll in printing and be provided with corresponding circular cone locating dowel, circular cone locating dowel and circular locating openings are corresponding, when roll printing, circular cone locating dowel and circular locating openings are engaged mutually, ensure the mutual alignment relation between existing damping diaphragm pattern and roll printing forme on prepreg, to reach the object of precision location.
Viscoelastic damping virgin rubber material is dissolved in organic solvent by the present invention, form damping glue material solution, roll printing technology is adopted to be imprinted on material prepreg by damping sizing material, this technique not only accurately can print very thin damping diaphragm on material prepreg, roll printing various panoramic perforation or grid damping diaphragm can also be gone out on material prepreg, simultaneously, adhere to prevent the forme of liquid damping sizing material and thickness correction measurement mechanism or roll printing next time, oven dry to be carried out to the prepreg of band damping diaphragm and make its sizing material layer segment sulfuration, and ensure damping layer thickness accurately, make embedded co-curing composite ensure there is stronger binding ability between composite and viscoelastic damping material at its damping capacity of raising simultaneously, for large damping, high designing and producing of rigidity composite establishes solid foundation.
Accompanying drawing explanation
The composite structure of the netted damping diaphragm of the embedded co-curing of Fig. 1;
The composite structure of Fig. 2 embedded co-curing perforation damping diaphragm;
Fig. 3 bores a hole the printing of damping diaphragm
The printing of the netted damping diaphragm of Fig. 4;
Fig. 5 rubber roll structure;
Fig. 6 reticulate pattern rolls structure;
Fig. 7 printing cylinder structure;
The partial structurtes of Fig. 8 roll printing damping diaphragm on material prepreg;
Fig. 9 material prepreg roll printing damping diaphragm production line;
Figure 10 material prepreg twice roll printing damping diaphragm production line;
Figure 11 material prepreg twice roll printing damping diaphragm structure;
The retracting device of Figure 12 damping adhesive solvent;
Figure 13 material prepreg is the technological process of roll printing damping diaphragm repeatedly.
In figure: 1 netted damping diaphragm; 2 perforation damping diaphragm; 3 taper locating dowels; 4 circular locating openings; 5 rubber roll axle center; 6 rubber roll rubber layers; 7 plinthitic horizons; 8 anilox roll axle center; 9 printing roll printing versions; Liner plate is rolled in 10 printings; The 11 printing roller bearing hearts; 12 damping sizing material solution tanks; 13 glue material solutions; 14 rubber rolls; 15 reticulate patterns roll; 16 printing cylinders; 17 pinch rolls; 18 material prepregs; 19 backing rolls; 20 feedstock directions; 21 prepreg volumes; 22 on material prepreg the structure of roll printing damping diaphragm; The turnover hopper of 23 wet type drying towers; 24 wet type drying towers; 25 wet type drying tower hermatic doors; 26 dry type drying ovens; 27 thickness correction measurement mechanisms; 28 roll up with the prepreg of damping diaphragm; 29 guide rollers; 30 material prepregs first after roll printing damping diaphragm; Material prepreg after 31 second time roll printing damping diaphragm; 32 air intake valves; 33 steam pumps; 34 heat exchangers; A high-temperature vapor entrance; B fluid oil aqueous mixtures exports; The outlet of c oil mixing with water gas.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-Figure 13 and embodiment, the invention will be further described.
Damping diaphragm pattern in embedded co-curing composite structure can be diversified, Fig. 1 and Fig. 2 is exactly two kinds of structures wherein, Fig. 3 and Fig. 4 is exactly the printing structure of perforation damping diaphragm 2 and netted damping diaphragm 1, and the netted damping diaphragm 1 made makes the composite structure goods of the complicated damping patterned films of embedded co-curing band with perforation damping diaphragm 2 by co-curing reaction together with material prepreg 18.In order to be manufactured with the embedded co-curing composite material test piece of complicated damping diaphragm pattern, guarantee that its structure is under the prerequisite of less reduction integral rigidity, improve its damping capacity significantly, the present invention makes embedded co-curing composite damping film by typography.
Damping material sizing material is by butyl rubber and the chlorinated scoline mixture as main component, this mixture is identical with the viscoelastic material in " manufacture craft of embedded co-cured high damping composite laminates structure " (ZL201010177278.8), and be dissolved in organic solvent, the present embodiment uses No. 120 gasoline, optimal dissolution ratio according to damping material and solvent is 30g damping material sizing material: visco-elastic damping material solution 13 made by 125ml gasoline, this solution is put into damping sizing material solution tank 12, by rubber roll 14 feeding, reticulate pattern rolls 15 material loadings, last layer damping glue material solution will be evenly coated with on the forme 9 that printing rolls 16, the forme 9 that the printing rotated is rolled on 16 passes through Structure deformation with material prepreg 18, one deck damping diaphragm will be printed at the upper surface of material prepreg, form the material prepreg 30 after roll printing damping diaphragm first.Due to the damping layer finite thickness printed at every turn, reach the damping diaphragm thickness of design in order to ensure damping layer thickness, be necessary to carry out repeatedly roll printing, as the material prepreg 31 after second time roll printing damping diaphragm.In order to make to keep certain relative position between the forme of repeatedly roll printing and material prepreg, here propose to adopt edge to wear the method location of circular locating openings 4, also be provided with taper locating dowel 3 at two of printing cylinder 16 simultaneously, this post just in time aligns with the locating hole 4 on material prepreg both sides, when roll printing, taper locating dowel 3 on printing cylinder is just in time engaged with the circular locating openings 4 on material prepreg, prevent there is relative sliding between printing cylinder and material prepreg on the one hand, affect damping patterned films quality; On the other hand, when the thickness of damping patterned films is different, can guarantee to keep stable position relationship between the forme of repeatedly roll printing and impressing pattern by edge-punching.
In order to reclaim the organic solvent in roll printing damping diaphragm, material prepreg 31 after the material prepreg 30 of printed damping diaphragm pattern or second time roll printing damping diaphragm is respectively by wet type drying tower 24 and dry type drying oven 26 technique, the prepreg being printed on damping diaphragm is dried, after solvent volatilization, just form damping diaphragm on material prepreg 18 surface, concrete production process is shown in Fig. 8, Fig. 9, Figure 10 and Figure 11, to the oil mixing with water steam that wet type drying tower produces, water-oil separating is carried out by the heat exchanger 34 in Figure 12 and oily-water seperating equipment, gasoline recovery is recycled simultaneously.When the thickness requirement of damping diaphragm is thicker, can, by the method for repeatedly roll printing, the damping layer thickness of embedding be met design requirement.Thus form certain thickness damping diaphragm on material prepreg 18 surface, embedded co-curing damp composite material test specimen is made by the curing process in autoclave, to reach the object improving embedded co-curing composite damping structure overall dynamics performance, whole fabrication processing is shown in Figure 13, finally will process the prepreg volume 28 with damping diaphragm, its embodiment is specially:
The preparation of visco-elastic damping material solution: in the present invention, the preparation of visco-elastic damping material solution is dissolved in by virgin rubber in No. 120 gasoline according to a certain percentage, optimal dissolution ratio according to damping material and solvent is 30g glue stuff compounding: visco-elastic damping material solution made by 125ml gasoline, and sealing is deposited and made it dissolve completely in 24 hours then in low temperature environment, (to prevent gasoline volatilization).For reaching preparation requirement, the following aspects factor is mainly considered in the preparation of viscoelastic material solution: (1) solution concentration, the height of concentration directly affects the thickness of viscoelastic material solution to the penetrating power of resin prepreg material and resin prepreg material surface roll printing viscoelastic material layer, in actual production, the quality that applying unit milliliter gasoline dissolves visco-elastic damping material is determined; (2) viscosity of solution, viscosity directly has influence on the thickness of solution to the penetrating power of prepreg and prepreg surface viscoelastic properties material layer, viscosity is excessive, and prepreg is not easily soaked into, and viscosity is too small, does not hang visco-elastic damping material, and general concentration and temperature control the viscosity of solution.Concrete technological parameter can be determined according to the physical property of the viscoelastic damping material thickness of a preimpregnation and viscoelastic material.
Location between roll printing pattern and prepreg: use roll printing technology can be printed on material prepreg by damping material solution, but prepreg here makes prepreg volume 21, and the damping layer finite thickness at every turn printed, reach the damping diaphragm thickness of needs, be necessary to carry out repeatedly roll printing.Roll to make the printing of repeatedly roll printing and keep certain relative position between material prepreg, circular locating openings is provided with in material prepreg both sides, corresponding circular cone locating dowel is provided with at two of printing roller, its structure as shown in Figure 3 and Figure 4, just in time with the locating hole alignment on prepreg, when roll printing, print the circular cone locating dowel 3 rolled on just in time to be engaged with the circular locating openings 4 on prepreg, prevent there is relative sliding between roll printing forme 9 and material prepreg 18 on the one hand, affect damping diaphragm quality; On the other hand, when the thickness of damping diaphragm is different, can guarantee repeatedly to keep stable position relationship between roll printing forme 9 and impressing pattern by edge-punching.
Rubber roll feeding: rubber roll 14 structure as shown in Figure 5, it is made up of rubber roll axle center 5 and rubber roll rubber layer 6, during work, the part of rubber roll 14 is immersed in damping sizing material solution tank 12, as shown in Figure 8, when rubber roll 14 rotates, the damping glue material solution 13 that its surface is taken out of by the Structure deformation being rolled 15 by it and reticulate pattern is transported to reticulate pattern and rolls on 15, because rubber roll 14 takes more solution out of from material pond, therefore, can not directly contact with the forme 9 of printing cylinder 16.
Reticulate pattern rolls on material: reticulate pattern rolls 15 structures as shown in Figure 6, and it is made up of plinthitic horizon 7 and anilox roll axle center 8.Fine and close reticulate pattern itself is had because reticulate pattern rolls 15 surfaces, in the present embodiment, each mesh form is hexagonal honeycomb shape, the damping glue material solution that rubber roll 14 is sent here can be stored in reticulate pattern hole by picturesque disorder reticulate pattern equably, when printing roller and rotating, forme 9 Structure deformation on 15 and printing cylinder 16 is rolled, by spreading upon on forme 9 of the damping dissolution homogeneity of plinthitic horizon 7 li by reticulate pattern.What the present invention adopted is ceramic network lamina 7, and ceramic material layer chemical stability is good, and roll surface corrosion resistance is good, long service life, and can be processed into higher screen density, and ink cell is level and smooth, carries damping sizing material amount of solution greatly, passes solution properties good; The wall of honeycomb ink cell arrangement is thin carefully hard, can obtain more uniform damping size solution layer, and can improve roll printing quality, suppresses dot gain phenomenon.
Printing cylinder prints: as shown in Figure 7, the taper locating dowel 3 that it rolls liner plate 10, the printing roller bearing heart 11 by printing roll printing version 9, printing and is arranged on printing cylinder two forms printing cylinder structure.By numerical-control processing method, printed patterns to be engraved in forme 9 surface according to design drawing, and forme 9 is fixed on the liner 10 of printing cylinder 16.When roll printing, material prepreg 18 is at pinch roll 17 and pass by for 16 times at printing cylinder evenly under printing the drive of rolling and contact with forme 9, and forme 9 contacts with the upper surface of material prepreg 18 along with printing cylinder 16 passes through backing roll 19, according to feedstock direction 20, on forme 9, the figure of design is just printed on material prepreg 18, just form damping rubber membrane on its surface, on material prepreg, the concrete form of roll printing damping diaphragm structure 22 as shown in Figure 8.
Stoving process: comprise wet type dry and dry type dry two processes, wherein wet type drying tower is dried tower body 24, wet type drying tower hermatic door 25 and guide roller 29 by the turnover hopper 23 of wet type drying tower, wet type and is formed, and wet type drying tower hermatic door leaves operating personnel's turnover on a guide for and the passage established to prepreg laying be hung; The turnover hopper of wet type drying tower is the passage that the special material prepreg for being printed on damping diaphragm passes in and out wet type drying tower.For ensureing the security of process, enter air after avoiding organic solvent (as No. 120 gasoline) to volatilize to pollute and occur with fire, the prepreg that roll printing is good first carries out wet type oven dry, and then through dry type drying oven, concrete layout as shown in Figure 9 and Figure 10.Its objective is and volatile organic solvent is volatilized from the material prepreg after roll printing, organic solvent (this patent uses No. 120 gasoline) gas and steam mixture is formed at the tower top of wet type drying tower, the oil mixing with water gas that the present invention produces wet type drying tower, water-oil separating is carried out, by organic solvent recycling by heat exchanger cooling and oily-water seperating equipment; The technological parameter of wet type drying tower is: for No. 120 gasoline as organic solvent, the steam of 110-130 DEG C is passed into from high-temperature vapor entrance a in the middle part of wet type drying tower by air intake valve 32,80 ~ 100 DEG C should be remained at the middle portion temperature of wet type drying tower, bottom temp should remain on 65 ~ 80 DEG C, make bottom it, to form fluid oil aqueous mixtures liquid, enter oil water separator by fluid oil aqueous mixtures outlet b and be separated; 100 ~ 130 DEG C should be remained in top of tower temperature, it is made to form oil mixing with water gas, this gas is extracted out by the steam pump 33 being located at oil mixing with water gas vent c place and is entered heat exchanger 34 entrance, by carrying out heat exchange between cold water, oil mixing with water gas is made to become oil mixing with water liquid, enter oil water separator together with the oil mixing with water liquid that fluid oil aqueous mixtures outlet b flows out to be separated, thus realize the recycling of organic solvent, the specifically retracting device of damping adhesive solvent as shown in Figure 12.
One dry type drying oven to be entered from the material prepreg of wet type drying tower band damping diaphragm out to dry, object has two: the first remains in steam on prepreg to remove after wet type is dried, it two is states in order to make the sulfuration of damping sizing material forming section, such one side once can verify measurement by thickness correction measurement mechanism 27 pairs of thickness, and the position excessive to thickness corrects, the prepreg thickness uniformity making this roll printing good, when also preventing roll printing next time on the other hand, damping sizing material sticks on the surface of lower road roll printing forme, the material prepreg of the band damping patterned layer of thickness measure is under the drive of pinch roll 17, enter the district of roll printing next time, a roll printing is carried out again according to said process, such repetition, require until damping layer thickness reaches design size, on whole prepreg volume 21, just print out the material prepreg of damping patterned films, finally the material prepreg harvest volume 28 of damping patterned layer will be had.
Dry type furnace drying method and resin prepreg material stoving process similar, but technological parameter is different from the drying parameter of prepreg, its main purpose is vapored away in dry type stoving process by moisture residual in wet type stoving process, make the partial vulcanization of damping sizing material, in order to avoid affect the carrying out of subsequent technique simultaneously.Dry type drying oven technological parameter is, in tower stove, bottom temp should remain on 40 ~ 60 DEG C, and middle portion temperature should remain on 60 ~ 100 DEG C, and upper temp should remain on 100 ~ 120 DEG C; In Horizontal drying furnace, laying import, outlet temperature should remain on 60 ~ 100 DEG C, and middle portion temperature should remain on 100 ~ 120 DEG C.
Oily-water seperating equipment: because the proportion of profit is different, in oil water mixture, oil generally all floats on the water surface, as long as the water that lower floor stayed by oil water mixture by us is taken away, just completes water-oil separating.From the oil water mixture liquid joint that wet type drying tower b mouth oil water mixture out and heat exchanger flow out, enter water-oil separating together, because organic solvent and water can layerings when liquid state, therefore the latter half water in separator can be discharged in oil water separator, thus reach the object of water-oil separating, realize recycling.
According to the size of producing damping layer thickness, the present invention proposes the manufacture craft that the large damping member laying of embedded co-curing composite produced automatically by many covers, respectively as shown in Figure 9 and Figure 10.Wherein, the technique shown in Fig. 9 is applicable to the material of tenacity difference, and whole production line is shorter, and floor space is little, can be realized the making of thicker damping diaphragm by repeatedly roll printing technique; And the technique shown in Figure 10 is applicable to the large material of the better production lot of tenacity, this production line floor space is large, and investment is large, and production efficiency is high.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. have the co-curing composite element manufacture craft that complex pattern damping diaphragm embeds, it is characterized in that, step is as follows:
1) damping material sizing material is dissolved in organic solvent forms the former glue material solution of damping;
2) charging, by step 1) in the former glue material solution of damping that formed by be immersed in rubber roll in sizing material groove and reticulate pattern roll between Structure deformation deliver to reticulate pattern and roll;
3) roll printing, reticulate pattern rolls on and is covered with equally distributed reticulate pattern, the former glue material solution of damping that rubber roll can be sent here by picturesque disorder reticulate pattern is equably deposited and is contained in the groove of reticulate pattern, when reticulate pattern rolls with plate surface Structure deformation on printing cylinder, be contained in reticulate pattern to roll the former glue material solution of damping in groove and just spread upon on the convex surface of printing cylinder forme equably, by the forme on printing cylinder and material prepreg Structure deformation, equably former for the damping spread upon on the forme convex surface of printing cylinder glue material solution can be printed on material prepreg surface and form one deck damping patterned films,
4) wet type heating, drying, by wet type drying tower, utilizes steam to dry to the material prepreg being printed on damping patterned films, after organic solvent volatilization in former glue material solution, is reclaimed by volatile organic solvent by recovery process;
5) dry type heating, drying, steam on material prepreg with damping patterned films is dried by recycling dry type drying oven, allow viscoelastic damping film realize partial vulcanization simultaneously, so just form the damping diaphragm with geometrical pattern on material prepreg surface;
6) the damping diaphragm thickness with geometrical pattern is checked whether to meet design requirement;
7) if the 6th) step inspection do not meet design requirement, then return the 3rd) repeat above-mentioned steps;
8) rolling, if the 6th) step is up to the standards, then will the material prepreg harvest volume of band damping patterned films, the composite element that there is complex pattern damping diaphragm and embed is made into finally by co-curing reaction.
2. technique as claimed in claim 1, it is characterized in that, described step 1) in by damping material sizing material in strict accordance with ratio every 30g damping material sizing material: visco-elastic damping material solution made by 125ml120 gasoline, in order to accurately control the thickness of damping diaphragm after a roll printing, except the concentration of the former glue material solution of damping is precisely controlled, also to control the environment temperature of printing cylinder, make the viscosity that the former glue material solution of viscoelastic damping keeps relative stability.
3. technique as claimed in claim 1, it is characterized in that, the specific implementation of described step (2) is, by the taper locating dowel on printing cylinder and the circular locating openings on material prepreg, control relative position between material prepreg and the forme of roll printing damping diaphragm pattern, by the rubber roll that is immersed in sizing material groove and reticulate pattern rolls and reticulate pattern rolls the Structure deformation between printing cylinder and delivered on the forme convex surface of printing cylinder by former for the damping of viscous state glue material solution.
4. technique as claimed in claim 3, it is characterized in that, the location of relative position between the forme of material prepreg and roll printing damping diaphragm pattern, can damping material solution be printed on material prepreg owing to using roll printing technology, but each damping layer finite thickness printed, reach the damping diaphragm thickness of needs, carry out repeatedly roll printing; In order to make to keep certain relative position between the forme of repeatedly roll printing and material prepreg, edge-punching mode is adopted to locate, corresponding taper locating dowel is had at two of printing cylinder, just in time with the circular locating openings alignment on material prepreg both sides, when roll printing, taper locating dowel on printing cylinder is just in time engaged with the circular locating openings on material prepreg, prevents there is relative sliding between printing cylinder and material prepreg on the one hand, affects damping patterned films quality; On the other hand, when the thickness of damping patterned films is different, guarantee to keep stable position relationship between the forme of repeatedly roll printing and impressing pattern by edge-punching.
5. technique as claimed in claim 1, it is characterized in that, described rubber roll covers the uniform rubber layer of one deck outside steel axle center, and covering rubber layer outside it is polyurethane rubber layer or silastic-layer.
6. technique as claimed in claim 1, it is characterized in that, described step 3) in roll printing technique adopt exactly roller printing technology by former for damping glue material solution roll printing material prepreg surface, thus accurately print out the damping diaphragm with geometrical pattern and varied in thickness on material prepreg surface, make the overall mechanics property retention of embedded co-curing composite damping structure optimum.
7. technique as claimed in claim 1, is characterized in that, described reticulate pattern rolls surface uniform and is dispersed with fine and close reticulate pattern, is referred to as " glue hole ", and these glue hole and in press play a part storage glue, even glue and quantitatively pass glue just; Glue hole is carve along with axis direction at 45 °, and the partition wall between glue hole is called " leader ", and the area of leader follows the shape in glue hole relevant; Reticulate pattern store the former glue material solution of damping in glue hole, and reticulate pattern roll surface other places can't store unnecessary solution, rolled and the forme Structure deformation on roller printing cylinder by reticulate pattern, spread upon on forme with reticulate pattern being rolled the damping sizing material dissolution homogeneity on top layer.
8. technique as claimed in claim 1, it is characterized in that, described step 3) middle printing cylinder forme making, by numerical-control processing method, pattern is engraved in plate surface according to design drawing, and forme is fixed on the liner of printing cylinder, when roll printing, material prepreg pinch roll and pass by under printing cylinder evenly under printing the drive of rolling and with forme Structure deformation, the forme pattern of such design is just printed on material prepreg equably, the damping rubber membrane that one deck has geometrical pattern is just formed on its surface, the composite element making embedded for complex pattern damping diaphragm lays the foundation.
9. technique as claimed in claim 1, it is characterized in that, described step 4) in wet type dry be that the organic solvent of volatilization is volatilized from the material prepreg after roll printing, organic solvent gas and steam mixing gas is formed at the tower top of wet type drying tower, to the oil mixing with water gas that wet type drying tower produces, carry out water-oil separating by heat exchanger cooling and oily-water seperating equipment, realize organic solvent recycling; The technological parameter of wet type drying tower is, for No. 120 gasoline as organic solvent, the steam of 110-130 DEG C is passed in the middle part of wet type drying tower, 65 ~ 80 DEG C should be remained at the bottom temp of wet type drying tower, middle portion temperature should remain on 80 ~ 100 DEG C, and head temperature should remain on 100 ~ 130 DEG C.
10. technique as claimed in claim 1, it is characterized in that, described step 5) in dry type heating, drying be that the prepreg that roll printing is good carried out step 4) wet type dry after, carry out dry type oven dry again, dry type drying oven technological parameter is, in tower stove, bottom temp should remain on 40 ~ 60 DEG C, middle portion temperature should remain on 60 ~ 100 DEG C, and upper temp should remain on 100 ~ 120 DEG C; In Horizontal drying furnace, laying import, outlet temperature should remain on 60 ~ 100 DEG C, and middle portion temperature should remain on 100 ~ 120 DEG C.
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| CN104085118B (en) * | 2014-06-11 | 2016-07-06 | 青岛理工大学 | Embedded co-curing perforation damping diaphragm composite structure processing technology |
| CN106000815B (en) * | 2016-05-27 | 2019-01-25 | 青岛理工大学 | The preparation method and preparation system of damping layer in embedded co-curing composite material |
| CN106273143B (en) * | 2016-09-22 | 2019-01-11 | 青岛理工大学 | A kind of manufacturing system and method for embedded co-curing composite material damping film |
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