CN101890799B - Combined impeller abrasive disk type extrusion plasticizing method and device - Google Patents
Combined impeller abrasive disk type extrusion plasticizing method and device Download PDFInfo
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- CN101890799B CN101890799B CN2010102181802A CN201010218180A CN101890799B CN 101890799 B CN101890799 B CN 101890799B CN 2010102181802 A CN2010102181802 A CN 2010102181802A CN 201010218180 A CN201010218180 A CN 201010218180A CN 101890799 B CN101890799 B CN 101890799B
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- abrasive disk
- mill
- impeller
- impeller abrasive
- barrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/363—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using non-actuated dynamic mixing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a combined impeller abrasive disk type extrusion plasticizing method and a combined impeller abrasive disk type extrusion plasticizing device. A fixed abrasive disk and a rotating abrasive disk are arranged in a charging barrel; the fixed abrasive disk is arranged on the charging barrel; and the rotating abrasive disk is arranged on a power shaft. The invention is characterized in that: the fixed abrasive disk and the rotating abrasive disk are designed to be impeller type abrasive disks are formed by making a plurality of material through grooves for allowing materials to pass through and mixing the materials on whole abrasive disks along a radial direction; impeller blades form abrasive surfaces, and channels are formed by the material through grooves between the blades of the impeller abrasive disks; a plurality of like fixed impeller abrasive disks and rotating impeller abrasive disks are overlapped alternately; the materials are forcefully pressed in from the front part of the inside of the charging barrel; then under the rotation of the rotating impeller abrasive disks relative to the fixed impeller abrasive disks, the materials pass through abrasive disk gap and blade material through grooves so as to be gradually mixed, crushed, ground, softened, subjected to heat exchange and plasticized in the constantly varying material through channels and the abrasive disk gaps; and finally, the materials are discharged from a discharge hole on the rear part of the inside of the charging barrel.
Description
Technical field
The present invention relates to a kind of combined impeller abrasive disk extrusion plasticizing method and device.Specifically be to adopt one or more groups impeller abrasive disk to realize the plasticizing of plastics and rubber, material be combined impeller abrasive disk mixing, fusion, plasticizing belong to plastics and rubber tooling field.
Background technology
Plastics and rubber processing industry plasticizing method commonly used has two rollers to open refining, two roller banburyings, spiro rod plasticizing.For example, two roller mills, two roller banburies, plastics single screw extrusion machine, plastics double screw extruder, plastic injection equipment, Rubber Extruder.The principle of two roller mills is to adopt slit that two rotating drums adjacent to each other constitute that material is carried out repeatedly extruding and grinding, and major advantage is that plasticizing effect is good, and major defect is that mixed effect is good and open wide operation by artificial.Banbury is to use instead two Z-shaped agitating rollers are set in the closed chamber, has improved sealing and mixed effect, and shortcoming is to shear a little less than the plastication.The said equipment still is noncontinuity.Extruder or extrusion plasticizing type injector then are to utilize the screw rod conveying property plasticizing of rotation, and the screw rod of rotation pulls material, causes the interlayer shear of material, realize mixing and plasticizing.Major advantage is continued operation, and shortcoming is that plasticizing effect is bad, and commonly used improving one's methods is to increase draw ratio and screw speed to increase fusion time and shear strength, and the method can increase screw rod carrying and power consumption.
Chinese patent 88217283 has disclosed a kind of plow-nail flow-dividing mixed type extrusion screw rod, compare with existing pin type screw rod, used the plow-nail flow-dividing element that new fluoran stream surface has concave surface (or inclined-plane), make polymer melt except repeatedly being shunted along screw surface and mixing, still can make melt outside, turnup forms three-dimensional hybrid mechanism backward, thereby has improved the plasticizing efficiency of screw rod.
Chinese patent 200720057069 discloses the efficient dual-screw-stem machine of a kind of modified, and it has added the kneading piece at twin-screw, has increased dispersion, the mixed milling ability sheared.
The essence of above-mentioned two kinds of inventions is to have added stirring, mixed function, even shearing is arranged, owing to there is not the abrasive action of stiffener, also belongs to the shearing that pulls to material, so plasticizing effect is difficult to increase substantially.
United States Patent (USP) 3262154 discloses a kind of abrasive disk type extruder, and it adopts a pair of big mill, and material enters from the mill outer ring by feed worm, exports from the mill center by the discharging screw rod then.
Chinese patent 03102852 discloses a kind of abrasive disk type high speed extruder, it is made up of the solid conveying section of screw pump version, the material extension melt zone of mill version, the melt accumulation transportation section of volute pump version, wherein is carved with continuous wedge groove on the whole mill.
The characteristics of above-mentioned abrasive disk type extruder are to utilize mill that material has been produced a direct powerful shear action, has powerful grinding plastication, but owing to have only a unique little narrow slit to grind the circulation passage of holding concurrently, so flow resistance is very big, output is difficult to improve.
The mill profile of tooth of 200820063166 pairs of tandem mills of Chinese patent single screw extrusion machine is improved, solved the bigger problem of fluted disc group resistance of existing tandem mill single screw extrusion machine, torsional forces is reduced greatly, load reduces, and has avoided torsional deformation and the damage of screw rod and element thereof.Shortcoming is that the effect of abrasive material has descended after being convenient to the profile of tooth of Flow of Goods and Materials instead.
Chinese patent 200620061842 is that the spiral shell rib of inner screw and external screw rod and the end face mill rib of mill and external screw rod are introduced in the mechanical pulse field of force of electromagnetic field and vibrator generation, the mill of material arrival front from the external screw rod adding and after closing charging aperture, return from the outlet of external screw rod afterbody after entering inner screw then, realization is to circulation conveying and the shear extrusion of polymer and filler, thereby improve mixed milling effect and the chemical reaction efficiency of material, its feature is to strengthen the mill effect by electromagnetic field and vibrator and inner loop, and the flow resistance problem of mill is not improved.
Chinese patent 95242817 passes through fixedly mill (2), rotary grinding disk (3) provides powerful extruding, shear action, make multiple stress effect such as material is subjected to vertically, hoop, shearing and fragmentation produces the existing more effective pulverizing of process equipment and force-chemical reaction, it is used for solid feed.
Above-mentioned all improvement all do not change the essence of mill plasticizing, also be, all still adopt the whole mill of a slice, otherwise material flows into from the mill slit of mill outer ring or, otherwise flow out from the space of mill inner ring or, gap between two whole mill annular regions constitutes grinds the plasticizing slit, this grinding plasticizing slit is unique passage of material, it also is the abrasive material plasticized region, so multiple function has been born in this zone, the adjusting of its each functional parameter often conditions each other and contradiction, such as, increase the mill diameter and can increase mill grinding plasticizing area, increase material in the time of staying of grinding the plasticizing slit, the raising plasticizing quality, also can improve plasticizing effect and mixing dynamics and reduce to grind the plasticizing slit, but these behave meeting increment materials flow dynamic resistance and reduce output; Can increase slit pressure and cause mill distortion and mill spindle to bearing load; Can increase power consumption.
Summary of the invention
The purpose of this invention is to provide a kind of combined impeller abrasive disk type extrusion plasticizing method and device, improve plasticizing quality and the output of material, make power consumption descend, reduce cost and the cost of equipment simultaneously.
Basic skills of the present invention is: combined impeller abrasive disk type extrusion plasticizing method, fixedly mill and rotating grinding board are set in a barrel, fixedly mill is installed on the barrel, rotating grinding board is installed on the line shaft, it is characterized in that: fixedly mill and rotating grinding board are designed to the vane type mill, this vane type mill be on whole mill, radially offer a plurality of for material by and the punishment in advance groove that mixes, form the mill of impeller shape; Impeller blade itself constitutes the abrasive material face, and the punishment in advance groove between each blade of impeller abrasive disk constitutes material channel; A plurality of such fixedly impeller abrasive disk and rotary blade mills are superimposed and staggered; Material front portion in the barrel is pressed into, then, the rotary blade mill is with respect to the fixedly rotation of impeller abrasive disk, make material pass through mill slit and blade punishment in advance groove, material in the punishment in advance groove of constantly conversion and mill slit step by step mixed, broken, grind, softening, conduct heat, plastify, at last, the discharge hole for discharge by rear portion in the barrel.
Different with the outer ring feeding manner of existing mill extruder, material of the present invention is axially to pass by the punishment in advance groove between each blade of impeller abrasive disk from the mill face, because the rotary blade mill is with respect to the fixedly rotation of impeller abrasive disk, the position of this groove is continuous conversion, material is mixed, broken in the groove of constantly conversion and mill slit, grind, softening, conduct heat, plastify.
Specifically be at a branch front portion to be arranged, the middle part arranges one or more rotatable line shaft in the barrel of the band heater in three districts, rear portion, and this line shaft is driven by the outer one or more power motors of barrel.Every line shaft at corresponding barrel middle part is equipped with one or more rotary blade mills, and the fixedly impeller abrasive disk of corresponding number and rotary blade mill interleaved are arranged; Fixedly impeller abrasive disk does not contact with the rotary blade mill, forms abrasive disk space.Fixedly impeller abrasive disk is fixed on and does not do any motion on the barrel.
Each fixedly impeller abrasive disk and rotary blade mill be foliated, a plurality of blades and blade punishment in advance groove constitute an annular working district, wherein, the tow sides of blade are the abrasive material faces, and the punishment in advance groove between each blade passes through for material.Fixedly the card slit between impeller abrasive disk and the rotary blade mill constitutes grinding plasticizing slit.
Because a plurality of fixedly impeller abrasive disks and rotary blade mill intersecting, when the rotary blade mill rotates, the continuous conversion of relative position meeting of each mill slit and blade punishment in advance groove, when material is pressed into from the anterior entrance of barrel, then, during these combined impeller abrasive disks by middle part in the barrel of material, will by step by step broken, mix, grind, softening, conduct heat, plasticizing, at last, the discharge hole for discharge by rear portion in the barrel.
For certain impeller abrasive disk, the area of leaf area is more big, and then the interval between each blade is just more little.The leaf area area is more big, and it is more big then to grind the section of shear; And the interval between each blade is more big, and the resistance when then material passes through is just more little.Blade quantity is more many, and then the distribution of abrasive material face and blade punishment in advance groove face is overstepping the bounds of propriety looses, and mixed effect is just more good, if but the number of blade is too many, then each grinding shear surface and blade punishment in advance groove face size can be too little, weakened the grinding shear effect on the contrary, increased single channel resistance.The number of blade can be 2～18, preferred 9.The leaf area area should be greater than blade punishment in advance groove area, preferred 3: 1.
Because material progressively becomes granule or melt from bulk or bulky grain shape; so; should successively decrease from big to small successively in each card slit of combined impeller abrasive disk; fixedly the card slit between impeller abrasive disk and the rotary blade mill can be from 10 millimeters to 0.5 millimeter; specifically become preferred 8 millimeters to 1 millimeter with material is different.The card slit is more little, and it is more strong then to grind shear action, and power consumption is more big, and it is more big to grind the shear gap circulating resistance.Otherwise this slit is more big, and then more easy material by bulk increases fragmentation and immixture.
The number of combinations of combined impeller abrasive disk can 4～30, preferred 8.Number is many, then mix and to grind shear effect good, but power consumption is big, and circulating resistance is big, yields poorly.
The blade orientation should stagger between each rotary blade mill, and the blade of front mill is over against the blade punishment in advance groove of back mill.
Line shaft quantity can be 1, and 2,3,4 etc., the abrasive material face is many at most for quantity, mixes, but complex structure, and difficulty of processing is big, and the power configuration difficulty is particularly at 3 when above.Preferred 2.
Each is by system center symmetric arrangement when above at one for line shaft, and the preferred diameter of axle of distance between axles adds half of impeller abrasive disk external diameter sum, makes between each impeller abrasive disk to be conjugate action.
An improvement of the present invention is in the combined impeller abrasive disk district auxiliary material to be set to add entrance, can be used for adding auxiliary agent or auxiliary material.
Another improvement of the present invention is that the output section at rear portion is also made feeding part in the barrel, material enters simultaneously from the front and rear of barrel, and come out from the barrel middle part, at this moment, the barrel middle part should lengthen, and increase to symmetry one group of impeller abrasive disk again, discharging opening is between 2 groups of impeller abrasive disks.The advantage of this design is the opposite power effect of direction that is subjected to of every impeller abrasive disk, stressed symmetry and balance, and the distortion of having avoided the impeller abrasive disk single load bearing to cause, simultaneously, 2 groups of impeller abrasive disks provide back pressure mutually.
The present invention will have in the mill formula extruder that area is big, the few whole mill of dish number has made the impeller abrasive disk that area is little and polydisc is stacked into now, material from slit between the dish of the blade punishment in advance groove of fixedly impeller abrasive disk, rotary blade mill itself and each impeller abrasive disk jointly the tortuous passageway of formation weave throngh.The slit constitutes grinding plasticizing slit between the dish of impeller abrasive disk, the blade punishment in advance groove of impeller abrasive disk itself constitutes the material channel of continuous conversion owing to turning effort, make material in by impeller mill district, be rotated impeller abrasive disk fragmentation, mixing, grinding, soften, conduct heat, plastify.
The invention has the beneficial effects as follows:
Compare with existing abrasive disk type extruder, because the blade punishment in advance groove of impeller abrasive disk itself is bigger and continuous changing location under turning effort, make the circulating resistance of material reduce, operating pressure reduces, the plasticizing that material is subjected to, immixture are strengthened, can improve plasticizing quality and the output of material simultaneously, make power consumption descend.Simultaneously, adopt multi-disc minor diameter impeller abrasive disk to replace the whole mill of two major diameters, can shorten conveying screw rod length.
Twin shaft pattern of the present invention is compared with existing double screw extruder, owing to increased the impeller abrasive disk assembly, has improved plasticizing capacity, and the circulating resistance when having reduced material process mill can shorten spiro rod length greatly, reduces power consumption.
The present invention is not heating even the state of cooling when using, can be as material broken and mixing or solid-state Mechanico-chemical reactor, when heated condition uses, can be for plasticizing apparatus or the melt Mechanico-chemical reactor of plastics and rubber.
The present invention is further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the embodiment of the invention 1---single axle.
Fig. 2 is single rotary blade mill 3 structure charts among Fig. 1.
Fig. 3 is single fixedly impeller abrasive disk 4 structure charts among Fig. 1.
Fig. 4 is the arrangement mode figure of a plurality of fixedly impeller abrasive disks 4 and rotary blade mill 3.
Fig. 5 is the embodiment of the invention 2---twin axle.
Fig. 6 is single fixedly impeller abrasive disk 8 among Fig. 5
Fig. 7 is twin shaft integral installation figure.
Fig. 8 is blade mill installation diagram.
Fig. 9 is the impeller abrasive disk of radial teeth.
Figure 10 is the impeller abrasive disk of band outer shroud.
Figure 11 is the impeller abrasive disk at band oblique angle.
Figure 12 is malleation charging, back-pressure discharging structure schematic diagram.
Figure 13 is staggered stacked barrel structure chart.
Figure 14 is embodiments of the invention 3---twin shaft is two to be driven.
Figure 15 is three layouts.
Figure 16 is four layouts.
Figure 17 is the improvement project of Fig. 5 embodiment 2.
The specific embodiment
The explanation of mark among Fig. 1: barrel 1, line shaft 2, rotary blade mill 3, fixedly impeller abrasive disk 4, feeding cylinder 5, discharge barrel 6, rotation drive motor 7.
The explanation of mark among Fig. 2: rotation punishment in advance groove 3.1.
The explanation of mark among Fig. 3: fixedly the punishment in advance groove 4.1.
The explanation of mark among Fig. 5: fixedly impeller abrasive disk 8, feed auger 9, discharging spiral 10, synchrom esh transmission 11.
The explanation of mark among Figure 12: oil cylinder 12, reciprocating-piston bar 13, reciprocating-piston 14, back-pressure piston 15, piston spring 16.
The explanation of mark among Figure 13: anterior barrel 18, barrel thin slice 19, rear portion barrel 20.
The explanation of mark among Figure 14: synchronizing shaft 17.
The explanation of mark among Figure 17: charging reverse acting spiral 9.1
Technical scheme 1: according to above-mentioned principle design technology project 1, adopt single shaft single action power, word order, one group of impeller abrasive disk, the box-like fixedly impeller abrasive disk of lobe, four of mill quantity, nine of blade quantities, blade surface light face, whole barrel, the charging of reciprocating-piston malleation, the discharging of spring piston formula back-pressure, no auxiliary material adds entrance.
Fig. 1 is that it is made up of following several sections: barrel 1 (having heater usually), line shaft 2 according to a kind of combined impeller abrasive disk extrusion plasticizing device of technique scheme 1 design, rotary blade mill 3, fixedly impeller abrasive disk 4, feeding cylinder 5, discharge barrel 6, rotation drive motor 7.
Barrel 1, rotation drive motor 7 are installed on the frame (not drawing among the figure).
The side, two ends of barrel 1 has been installed feeding cylinder 5 respectively, discharge barrel 6.Line shaft 2 has been installed in barrel 1 the inside, and one group of fixedly impeller abrasive disk 4 has been installed at middle part, barrel 1 the inside, fixedly has fixedly punishment in advance groove 4.1 on the impeller abrasive disk 4.
One end of line shaft 2 has connected rotation drive motor 7.
One group of rotary blade mill 3 has been installed at the middle part of line shaft 2, has rotation punishment in advance groove 3.1 on the rotary blade mill 3.
The two ends end face of barrel 1 seals, and the bearing of band sealing is arranged on the sealing surface, and this bearing is used for the supporting of line shaft 2.
Material adds the combined impeller abrasive disk district that the back is forced to compacting in barrel 1 front portion, is transported to middle part in the barrel 1 from feeding cylinder 5 by known pressure delivery device, and fixedly impeller abrasive disk 4 and rotary blade mill 3 that this combined impeller abrasive disk is arranged by one group of intersecting are formed.Wherein, the rotary blade mill 3 that is installed on the line shaft 2 rotates under the driving of rotation drive motor 7.Can form relative mixing, abrasive action between the fixedly impeller abrasive disk 4 that this rotatablely moves with intersecting is arranged.Material is from rotation punishment in advance groove 3.1 with when fixedly being forced to pass the combined impeller abrasive disk district the punishment in advance groove 4.1, under the environment that reduces successively in gap between the impeller abrasive disk, progressively is classified to be broken, mix, and grinds, softening, plasticizing.Then, material enters rear portion in the barrel 1, design barrel 6 discharging openings less than feeding cylinder 5 charging apertures, then material will produce a suitable back pressure pressure and be compacted and be sent to discharge barrel 6 in the barrel 1, regulate back pressure and can also regulate the time of staying of material in barrel 1.
The blank parts of front and rear is the space of reserving for the quantity that increases impeller abrasive disk in the barrel 1, and this space also can be used for arranging conveying device.
Fig. 2 is a kind of structure of single rotary blade mill 3.
Fig. 3 is a kind of structure of single fixedly impeller abrasive disk 4, and the semi-circular structure design is for the ease of installing.
Wherein, the fan-shaped central angle β of blade should be greater than blade punishment in advance groove central angle δ, to increase the abrasive material area.And blade number n is more many, and then mixed effect is more good, looses but the abrasive material face is overstepping the bounds of propriety.Relation between the three is preferably: β=3* δ, (β+δ) * n=360, i.e. δ=90/n.
Fig. 4 is the arrangement mode of a plurality of fixedly impeller abrasive disks 4 and rotary blade mill 3, and its preferred rule is: each is fixedly interlaced stacked successively between the dish of impeller abrasive disk 4 and rotary blade mill 3 and the dish.Wherein, each fixedly impeller abrasive disk 4 self blade is aligned with each other.Stagger mutually successively between each rotary blade mill 3 blades, concrete shifting method is: the blade punishment in advance groove of hub disk is over against the blade of shroud.Like this, material just must arrive the blade punishment in advance groove of hub disk by the abrasive material gap from the blade punishment in advance groove of shroud.
Fixedly the abrasive material gap between impeller abrasive disk 4 and the rotary blade mill 3 reduces from the feed end to the discharge end successively, and preferred gap is from 3 millimeters to 1 millimeter.
Technical scheme 2: according to the foregoing invention content, adopt twin shaft single action power, word order, two groups of rotary blade mills, the box-like fixedly impeller abrasive disk of lobe, eight of mill quantity, nine of blade quantities, blade surface light face, whole barrel, the charging of parallel dual-screw malleation, the discharging of parallel dual-screw back-pressure, no auxiliary material adds entrance.
Fig. 5 is a kind of combined impeller abrasive disk extrusion plasticizing device according to technique scheme 2 designs, it is made up of following several sections: the barrel 1 of band heater, line shaft 2, rotary blade mill 3, feeding cylinder 5, discharge barrel 6, rotation drive motor 7, fixedly impeller abrasive disk 8, feed auger 9, discharging spiral 10, synchrom esh transmission 11.
Different with technical scheme 1 is, line shaft 2, rotary blade mill 3, has made 2 covers into, and fixedly impeller abrasive disk 4 has made fixedly impeller abrasive disk 8 into for the ease of installation, and it is that four quadrants piece together a fixedly impeller abrasive disk, as shown in Figure 6.Design feed auger 9 on the line shaft 2 of barrel 1 front portion, be used for strengthening material charging ability.Design discharging spiral 10 on the line shaft 2 at barrel 1 rear portion, be used for strengthening material discharging ability.Twin-screw conjugation on 2 line shafts 2 is installed, and direction of rotation preferably in the same way.
The blank parts at rear portion is the space of reserving for the group number that increases impeller abrasive disk and discharging spiral 10 in the barrel 1.
Fig. 7 is twin shaft integral installation figure.
Fig. 8 is blade mill installation diagram.
The conveying capacity of feed auger 9 should in order to form a discharging resistance, guarantee the closely knit of material greater than the conveying capacity of discharging spiral 10.Conveying capacity can realize by change pitch, spiral groove depth, screw channel width.
As to the improvement of the technical scheme scheme, tooth can be with in the impeller abrasive disk surface, and profile of tooth can be radial flank, also can be the reticulate pattern flank of tooth, and preferred radial flank is to simplify processing, as shown in Figure 9.
As to the improvement of the technical scheme scheme, rotary blade mill 3 can be with outer shroud, to increase impeller intensity, as shown in figure 10.
As to the improvement of the technical scheme scheme, the blade of rotary blade mill 3 can design an oblique angle along direction of rotation one side, and this helps material to enter the mill slit.As shown in figure 11.
As to the improvement of the technical scheme scheme, the malleation charging can be finished with one or more reciprocating-pistons, like this, can improve feed pressure.2 oil cylinders 12 as shown in figure 12,2 reciprocating-piston bars 13, reciprocating-piston 14.
As to the improvement of the technical scheme scheme, the back-pressure discharging can be finished with one or more back-pressure pistons, like this, can regulate under the prerequisite of suitable back-pressure and control discharging resistance providing.Back-pressure piston 15 as shown in figure 12 and piston spring 16.
As to the improvement of the technical scheme scheme, as shown in figure 13, it is segments combined that barrel 1 is made anterior barrel 18, middle part barrel, rear portion barrel 20 3 according to front portion, middle part, rear portion, wherein, the middle part barrel is by a plurality of barrel thin slices 19 and a plurality of fixedly impeller abrasive disk 4 or fixedly impeller abrasive disk 8 is alternately laminated forms together.Their common stacked combination barrels that interlocks of forming.The thickness of barrel thin slice 19 is identical with the thickness of rotary blade mill 3, and fixedly impeller abrasive disk 4 or fixedly the external diameter of impeller abrasive disk 8 expand to the external diameter of barrel 1 and equate, the fixedly impeller abrasive disk 4 that has 19,8 two halves of 4 barrel thin slices that do not close up not close up in the example shown in Figure 13.Staggered lamination adopts flange to connect.The advantage of this scheme is to be conducive to the fixedly firm installation of impeller abrasive disk.
As the improvement project to technique scheme 2, the power shaft that adopts 2 cover synchrom esh transmissions 11 and 2 cover rotation drive motors 7 to drive 2 line shafts, 2,2 cover synchrom esh transmissions 11 respectively at barrel two links up the synchronous rotation that realizes 2 line shafts 2 by a synchronizing shaft 17.The advantage of this scheme is not need to use the twin shaft output decelerator, is applicable to that high-power twin shaft drives occasion, as shown in figure 14.
As to the improvement of the technical scheme scheme, on line shaft 2, a flying wheel can be installed, to reduce the shock effect that bulk materials brings when broken.
As to the improvement of the technical scheme scheme, can design line shaft 2 and impeller abrasive disk assembly thereof more than three or three, the number of axle is more many, and then mixing and abrasive material effect are more good.But structure and synchronous driving system more than three and three are more complicated.Even for abrasive material, the layout of axle system should be with respect to axial center's symmetry.Figure 15 is three layouts, and the spacing between each rotary blade mill 3 must equal three times of rotary blade mill 3 thickness.Figure 16 is four layouts, and the spacing between each rotary blade mill 3 must equal four times of rotary blade mill 3 thickness.This rule is also followed in the design of other number of axle.
As the improvement project to technique scheme 2, as shown in figure 17, it is made up of following several sections: barrel 1, line shaft 2, symmetry 2 cover rotary blade mills 3,5, one discharge barrels 6 of two feeding cylinders, rotation drive motor 7, symmetry two covers are impeller abrasive disk 8 fixedly, feed auger 9, charging reverse acting spiral 9.1, synchrom esh transmission 11.
Different with Fig. 5 is, rotary blade mill 3, fixedly impeller abrasive disk 8 has made 2 covers of symmetry into, discharging spiral 10 has made charging reverse acting spiral 9.1 into, feed auger 9 and charging reverse acting spiral 9.1 play the charging effect simultaneously by two feeding cylinders 5 respectively, discharge barrel 6 makes in the centre of barrel 1, and material enters simultaneously from two feeding cylinders 5, and comes out from the discharge barrel 6 at barrel middle part.Two bursts of opposite material chargings make two groups of impeller abrasive disks that back pressure is provided mutually.
Claims (10)
1. combined impeller abrasive disk type extrusion plasticizing method, fixedly mill and rotating grinding board are set in a barrel, fixedly mill is installed on the barrel, rotating grinding board is installed on the line shaft, it is characterized in that: fixedly mill and rotating grinding board are designed to the vane type mill, this vane type mill be on whole mill, radially offer a plurality of for material by and the punishment in advance groove that mixes, form the mill of impeller shape; Impeller blade itself constitutes the abrasive material face, and the punishment in advance groove between each blade of impeller abrasive disk constitutes material channel; A plurality of such fixedly impeller abrasive disk and rotary blade mills are superimposed and staggered; Material front portion in the barrel is pressed into, then, the rotary blade mill is with respect to the fixedly rotation of impeller abrasive disk, make material pass through mill slit and blade punishment in advance groove, material in the punishment in advance groove of constantly conversion and mill slit step by step mixed, broken, grind, softening, conduct heat, plastify, at last, the discharge hole for discharge by rear portion in the barrel.
2. combined impeller abrasive disk type extrusion plasticizing method according to claim 1 is characterized in that: described fixedly impeller abrasive disk and rotary blade mill quantity equate that fixedly impeller abrasive disk has two at least.
3. combined impeller abrasive disk type extrusion plasticizing method according to claim 1, it is characterized in that: described line shaft has two at least.
4. combined impeller abrasive disk type extrusion plasticizing device, it comprises barrel (1), line shaft (2), feeding cylinder (5), discharge barrel (6), rotation drive motor (7), it is characterized in that: it also comprises rotary blade mill (3), fixing impeller abrasive disk (4), rotation punishment in advance groove (3.1) is arranged on the rotary blade mill (3), fixedly punishment in advance groove (4.1) is fixedly arranged on the impeller abrasive disk (4), and fixedly impeller abrasive disk (4) and rotary blade mill (3) are that adjacent intersecting is arranged successively, constitute the mill slit between adjacent fixedly impeller abrasive disk (4) and the rotary blade mill (3); Each fixedly impeller abrasive disk and rotary blade mill be foliated, a plurality of blades and blade punishment in advance groove constitute an annular working district, the punishment in advance groove between each blade passes through for material.
5. combined impeller abrasive disk type extrusion plasticizing device according to claim 4 is characterized in that: described fixedly impeller abrasive disk and rotary blade mill quantity equate that fixedly impeller abrasive disk has two at least.
6. combined impeller abrasive disk type extrusion plasticizing device according to claim 4, it is characterized in that: described line shaft has two at least.
7. combined impeller abrasive disk type extrusion plasticizing device according to claim 5, it is characterized in that: the rotation punishment in advance groove (3.1) of front and back rotary blade mills (3) staggers mutually.
8. combined impeller abrasive disk type extrusion plasticizing device according to claim 4, it is characterized in that: the number of blade of impeller abrasive disk is 9, the leaf area area: blade punishment in advance groove area=3:1.
9. combined impeller abrasive disk type extrusion plasticizing device according to claim 4, it is characterized in that: successively decrease from big to small successively in each card slit of combined impeller abrasive disk, fixedly the card slit between impeller abrasive disk and the rotary blade mill is from 10 millimeters to 0.5 millimeter.
10. combined impeller abrasive disk type extrusion plasticizing device according to claim 4, it is characterized in that: barrel (1) front and rear part arranges feeding cylinder respectively, and sets out barrel at the barrel middle part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102181802A CN101890799B (en) | 2010-07-06 | 2010-07-06 | Combined impeller abrasive disk type extrusion plasticizing method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102181802A CN101890799B (en) | 2010-07-06 | 2010-07-06 | Combined impeller abrasive disk type extrusion plasticizing method and device |
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| Publication Number | Publication Date |
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| CN101890799A CN101890799A (en) | 2010-11-24 |
| CN101890799B true CN101890799B (en) | 2013-07-17 |
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| CN103419294A (en) * | 2013-09-08 | 2013-12-04 | 北京化工大学 | Novel millstone extruder used for blending trace amount of materials |
| CN104129057B (en) * | 2014-07-17 | 2016-10-05 | 青岛科技大学 | What a kind of scrap rubber serialization regenerated de-connects Plasticator and process |
| CN105082510B (en) * | 2015-08-28 | 2017-04-19 | 顺德职业技术学院 | Multi-segment series connection coaxial wheel type mixing extrusion device |
| CN114405373A (en) * | 2021-12-14 | 2022-04-29 | 山东博研粉体技术装备有限公司 | Combined type mixer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3609807A (en) * | 1968-09-02 | 1971-10-05 | Sidel Sa | Rotary plate extruding machine |
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2010
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3609807A (en) * | 1968-09-02 | 1971-10-05 | Sidel Sa | Rotary plate extruding machine |
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