CN106273344A - Inside and outside screw channel coaxial twin-screw mixer extruding machine in opposite directions - Google Patents
Inside and outside screw channel coaxial twin-screw mixer extruding machine in opposite directions Download PDFInfo
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- CN106273344A CN106273344A CN201510277062.1A CN201510277062A CN106273344A CN 106273344 A CN106273344 A CN 106273344A CN 201510277062 A CN201510277062 A CN 201510277062A CN 106273344 A CN106273344 A CN 106273344A
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- screw
- screw rod
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- external screw
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
- B29C48/51—Screws with internal flow passages, e.g. for molten material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
- B29C48/445—Coaxially arranged screws, i.e. one within the other
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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
- B29C48/63—Screws having sections without mixing elements or threads, i.e. having cylinder shaped sections
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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
- B29C48/68—Barrels or cylinders
- B29C48/683—Barrels or cylinders for more than two screws
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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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/82—Cooling
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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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
- B29C48/845—Heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention relates to inside and outside one screw channel coaxial twin-screw mixer extruding machine in opposite directions, including head, thin-walled machine barrel, electric heating coil, hollow external screw rod, inner screw, hopper, first and second radial bearing group, first and second thrust bearing, stand, electricity swivel joint, first and second drive mechanism, the first motor and the second motor；Wherein electric heating coil is set in outside thin-walled machine barrel, and thin-walled machine barrel is set in outside hollow external screw rod, and hollow external screw rod is set in outside inner screw；Hopper is located at the right-hand member of thin-walled machine barrel；First driven by motor the first actuating device rotates, and the first actuating device drives inner screw to rotate；Second driven by motor the second actuating device rotates, and the second actuating device drives hollow external screw rod to rotate；Feature is that the interior die cavity of hollow external screw rod is designed with inner screw channel and interior unthreaded hole, the inner screw outer mold surface being coaxial therewith is designed with outer screw channel and outer polished rod, the outer screw channel of the interior unthreaded hole of hollow external screw rod, inner screw channel and inner screw and outer polished rod form that material is mixing, plasticizing, conveying space.It has the mixing plasticizing of enhancing, and mixing is fully, mass-and heat-transfer is effective, melt capacity is strong, be particularly suitable for multiple different material mixing, plastify and the advantage such as extrusion.
Description
Technical field
The present invention relates to inside and outside one screw channel coaxial twin-screw mixer extruding machine in opposite directions, its be mainly used in macromolecular material mixing, plastify and extrude, belong to polymer material molding equipment technology field.
Background technology
In the industrial circles such as petrochemical industry, rubber and plastics, mixing, extrusion shaping machine is visual plant, after polymer material enters screw channel space by hopper, move forward under screw rod spiral shell rib promotes, material will be through a series of processes such as plastifying fusions in screw channel, and its form is by initial solid-state, through all too many levels, finally it is changed into molten state, is then shaped to finished product via the first-class apparatus processing of extruder.As the most important parts of plastic extruding forming machine, the structure of screw rod and shape not only affect mixing and plasticizing quality, but also affect machine service life.Tradition single screw extrusion machine is for ensureing that mixing and plasticizing fully, often increases the length of screw rod, and the length of screw rod increases, and can bring series of problems, such as: rigidity is not enough, poor stability and screw rod be to problems such as the serious scraped finish of machine barrel and frictions；Other use the extrusion equipment that multiscrew mode is processed, although multi-screw extruder has a lot of advantage, but also bring the problems such as structure complexity, manufacturing cost and use cost increase simultaneously.
Also partly plastic machinery is had to have employed the screw rod of hollow-core construction, through consulting Patents document, find the binomial patent being set forth below, although finding that they all have employed screw rod " hollow " scheme close with the present invention, but in it, die cavity is all without screw channel, is the smooth face of cylinder or taper seat, and the mechanism of action also differs greatly with the present invention, essential difference has 2 points: the screw rod in these patents of the first all only has screw channel in outer mold surface, and in it, die cavity is without screw channel；It two is in these patents, and material stream, before importing extruder head, is that the material in movement in the screw channel of each screw rod self, i.e. each screw channel is seldom even without the most mixing with the material in other screw channels.
Example one, in patent " concentric axis multi-screw plastic extruding machine " (publication number CN1059151C), disclose a kind of extruding machine having the many sleeves of multiscrew, extruding machine described in this patent has two screw rods, two sleeves, but its two screw rods all only have screw channel at its periphery, in it, profile does not then have screw channel, and its two sleeves, within it, outer round surface does not the most all have screw channel, extruding machine described in this patent is equipped with the multilamellar barrel of concentric and screw rod, can be used for extruding the material of the multilamellar heterogeneity wrapped up mutually simultaneously, its structure is complicated, required spiro rod length is long, between screw rod and sleeve, scraped finish is serious, service life is impacted.
Example two, in patent " compound co-extrusion conical screw extruder " (publication number CN201721024U), machine barrel is built with two screw rods inside and outside nested concentric, although each inside screw is hollow, but screw rod all only has outer screw channel, and its inner surface is all without screw channel, its structure is complicated, required spiro rod length is long, and between screw rod and sleeve, scraped finish is serious, and service life is impacted.
Summary of the invention
Patent of the present invention is to provide a kind of simple in construction, spiro rod length short for overcoming the deficiencies in the prior art, have strengthen mixing plasticizing, mixing fully, the inside and outside screw channel in opposite directions coaxial twin-screw mixer extruding machine of the advantage such as mass-and heat-transfer is effective and melt capacity is strong.
In order to achieve the above object, the present invention is realized in, it is screw channel coaxial twin-screw mixer extruding machine in opposite directions inside and outside one, including head, thin-walled machine barrel, electric heating coil, hollow external screw rod, inner screw, hopper, the first radial bearing group, the second radial bearing group, the first thrust bearing, the second thrust bearing, stand, electricity swivel joint, the first drive mechanism, the second drive mechanism, the first motor and the second motor；Wherein said electric heating coil is set in outside thin-walled machine barrel, and described thin-walled machine barrel is set in outside hollow external screw rod, and described hollow external screw rod is set in outside inner screw, and hollow external screw rod is rotatable relative to thin-walled machine barrel and inner screw；Described head is positioned at the left end of thin-walled machine barrel；Described hollow external screw rod installs location by the second radial bearing group of right-hand member, the first thrust bearing and stand；Inner screw installs location by the first radial bearing group of right-hand member, the second thrust bearing and stand, first radial bearing group is arranged in the endoporus of hollow external screw rod right-hand member, right part at hollow external screw rod is provided with feeding mouth, described hopper is located at the right-hand member of thin-walled machine barrel, and the discharging opening of hopper connects with the feeding mouth of hollow external screw rod；Described first driven by motor the first actuating device rotates, and described first actuating device drives inner screw to rotate；Described second driven by motor the second actuating device rotates, and described second actuating device drives hollow external screw rod to rotate；It is characterized in that the interior die cavity of described hollow external screw rod is designed with inner screw channel and interior unthreaded hole, the inner screw outer mold surface being coaxial therewith is designed with the outer screw channel of outer screw channel and outer polished rod, the interior unthreaded hole of hollow external screw rod and inner screw channel and inner screw and outer polished rod forms that material is mixing, plasticizing, conveying space.
Described hollow external screw rod coordinates full section can be the combination of multiple fit system with inner screw screw channel, has " the outer screw channel of the inner screw channel+inner screw of hollow external screw rod " to coordinate respectively, " the outer screw channel of the interior unthreaded hole+inner screw of hollow external screw rod " coordinates, " the outer polished rod of the inner screw channel+inner screw of hollow external screw rod " coordinates.
The inner screw channel of described hollow external screw rod can be contrary with the outer screw channel rotation direction of inner screw, it is possible to for identical；Hollow external screw rod can be contrary with inner screw direction of rotation, it is possible to for identical；If the screw channel rotation direction of this two screw rod is identical, then this two screw rods direction of rotation is identical, if the screw channel of this two screw rod is oppositely oriented, then this two screw rods direction of rotation is contrary.
In described hollow external screw rod, shape can be cylindrical, it is possible to for cone, described inner screw profile adapts with shape in hollow external screw rod, and inner screw profile can be cylindrical, it is possible to for cone.
The number of starts of described hollow external screw rod can be single head, it is possible to for bull；The number of starts of inner screw can be single head, it is possible to for bull.
The screw channel of the inner spiral groove of described hollow external screw rod and spiral shell rib may be designed to different section molded line；The screw channel of inner screw external spiral groove and spiral shell rib may be designed to different section molded line；Can be also pin, barrier head, annular, separation shape, flute profile, waveform.
The present invention compared with prior art has the advantage that
1, material is when being transported to head axially along a screw, alternately to shunt in each section of helical flow path and extruder head and to collaborate mixing, enhancing mixing plasticizing, mixing is fully, mass-and heat-transfer is effective, melt capacity is strong, be particularly suitable for multiple different material mixing, plastify and extrude；
2, making rightabout when hollow external screw rod and inner screw to rotate, screw rod just can obtain bigger relative velocity with less rotating speed, improves efficiency and quality；When interior external screw rod makees rotating Vortex, then can form differential machine-shaping；
3, owing to having helical flow path in opposite directions between special hollow external screw rod and inner screw, the requirement that material is mixing, plastifies, melt can be met with shorter spiro rod length, it is greatly shortened spiro rod length, avoid long pole and the processing difficulties of long orifice, simultaneously, short screw much smaller than long bolt to the probability of machine barrel scraped finish, therefore can greatly reduce scraped finish mutual between interior external screw rod and friction and external screw rod to the scraped finish of machine barrel and friction, extend the service life of machine.
4, eliminate the problems such as the intrinsic rigidity deficiency of long bolt and poor stability, screw speed can be improved greatly, thus improve the productivity ratio of machine.
5, owing to there is no meshing relation between hollow external screw rod and inner screw, it is to avoid mutual friction and wear between screw rod sieve rib in traditional multi-screw extruder, improve screw rod service life.
6, shorter spiro rod length, makes machine length shorten, and can reduce machine volume, reduces manufacturing cost, also can save floor space.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation that the hollow external screw rod of present invention section complete with inner screw coordinates；
Fig. 3 is the structural representation of the hollow external screw rod of the present invention；
Fig. 4 is the structural representation of the inner screw of the present invention.
In figure: 1, extruder head, 2, thin-walled machine barrel, 3, electric heating coil, 4, hollow external screw rod, 5, inner screw, 6, hopper, 7, the first radial bearing group, 8 second radial bearing groups, the 9, first thrust bearing, 10, stand, 11, electricity swivel joint, the 12, second thrust bearing, 13, the first drive mechanism, 14, the first motor, the 15, second drive mechanism, the 16, second motor.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.At this it should be noted that be adapted to assist in for the explanation of these embodiments and understand the present invention, but it is not intended that limitation of the invention.As long as just can be combined with each other additionally, technical characteristic involved in each embodiment of invention described below does not constitutes conflict each other.
In the present description, orientation or the position relationship of the instruction such as term " left " and " right " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention rather than requires that therefore the present invention must be not considered as limiting the invention with specific azimuth configuration and operation.
In describing the invention, term " first " to " the 4th " is only used for describing purpose, and it is not intended that indicate or hint relative importance.
As shown in Figures 1 to 4, the present invention relates to inside and outside one screw channel coaxial twin-screw mixer extruding machine in opposite directions, be mainly made up of head 1, thin-walled machine barrel 2, electric heating coil 3, hollow external screw rod 4, inner screw 5, hopper the 6, first radial bearing group the 7, second radial bearing group the 8, first thrust bearing 9, stand 10, electricity swivel joint the 11, second thrust bearing 12, drive mechanism 13 and the 15, first motor 14 and the second motor 16.
Described electric heating coil 3 is set in outside thin-walled machine barrel 2, and described thin-walled machine barrel 2 is set in outside hollow external screw rod 4, and described hollow external screw rod 4 is set in outside inner screw 5, and the hollow relative thin-walled machine barrel 2 of external screw rod 4 and inner screw 5 are rotatable；Described extruder head 1 is positioned at the left end of thin-walled machine barrel 2；Described hollow external screw rod 4 installs location by the radial bearing group 8 of right-hand member, thrust bearing 9 and stand 10；Inner screw 5 installs location by the radial bearing group 7 of right-hand member, thrust bearing 12 and stand 10, radial bearing group 7 is arranged in the endoporus of hollow external screw rod 4 right-hand member, right part at hollow external screw rod 4 is provided with feeding mouth 40, described hopper 6 is located at the right-hand member of thin-walled machine barrel 2, and the discharging opening of hopper 6 connects with feeding mouth 40；Described first motor 14 drives the first actuating device 13 to rotate, and described first actuating device 13 drives inner screw 5 to rotate；Described second motor 16 drives the second actuating device 15 to rotate, and described second actuating device 15 drives hollow external screw rod 4 to rotate；The interior die cavity of hollow external screw rod 4 is designed with inner screw channel and interior unthreaded hole, inner screw 5 outer mold surface being coaxial therewith is designed with outer screw channel and outer polished rod, the interior unthreaded hole of this hollow external screw rod 4 and inner screw channel and the outer screw channel of inner screw 5 and outer polished rod form that material is mixing, plasticizing, conveying space.
In the present embodiment, hollow external screw rod 4 is from right to left divided into four section in the screw channel section of cooperation along axis with inner screw 5, Ith section (the rightest section, near hopper 6), inner screw 5 is provided with the first outer screw channel 51, hollow external screw rod 4 is provided with the first inner screw channel 41, and the first outer screw channel 51 coordinates with the first inner screw channel 41, but the first outer screw channel 51 and the first inner screw channel 41 are the most shallower；IIth section, inner screw 5 is provided with the outer screw channel of deeper second 52, and hollow external screw rod 4 is that unthreaded hole 42(is without inner screw channel), the second outer screw channel 52 coordinates with unthreaded hole 42；IIIth section, inner screw 5 is that outer polished rod 53(is without outer screw channel), hollow external screw rod 4 is provided with the 3rd deeper inner screw channel 43, and outer polished rod 53 coordinates with the 3rd inner screw channel 43；IVth section (near extruder head 1), inner screw 5 is provided with the 4th outer screw channel 54, hollow external screw rod 4 is provided with the 4th inner screw channel 44,4th outer screw channel 54 coordinates with the 4th inner screw channel 44, but the outer screw channel 54 of this section and the groove depth more shallow (this section of inside and outside spiral groove depth is respectively less than the inside and outside spiral groove depth in the Ith section) of inner screw channel 44.
During work, when hollow external screw rod 4 and inner screw 5 rotate respectively under the drive of the second drive mechanism 15 and the first drive mechanism 13, material enters screw channel from hopper 6 and coordinates the Ith section of section and form shunting, partial material enters the first outer screw channel 51 of inner screw 5, another part material enters the first inner screw channel 41 of hollow external screw rod 4, polymer material promotes at screw rod spiral shell rib and is moved to the IIth section, only the second outer screw channel 52 is had at inner screw 5 due to the IIth section, and the inner chamber of hollow external screw rod 4 is that interior unthreaded hole 42(is without inner screw channel), the the second outer screw channel 52 entering inner screw 5 is formed interflow by all materials, mix, blending, and move to extruder head 1 direction；When polymer material is moved to the IIIth section in the promotion of screw rod spiral shell rib, only the 3rd inner screw channel 43 is had at hollow external screw rod 4 due to the IIIth section, and inner screw 5 is that outer polished rod 53(is without outer screw channel), all polymer materials can enter the 3rd inner screw channel 43 of hollow external screw rod 4 and form interflow, and continue to move to extruder head 1 direction；Finally, polymer material enters the IVth section (near extruder head 1) and is again diverted in inside and outside screw channel, in this section, inner screw 5 is provided with the 4th outer screw channel 54, and hollow external screw rod 4 also is provided with the 4th inner screw channel 44, but inside and outside screw channel is the most shallower, and the inside and outside screw channel compared with the Ith section is more shallow.Use this inside and outside screw channel in opposite directions and during the structure of Shi Erfen, Shi Erhe, material moves route for " many broken lines " in screw channel in the axial direction, material first shunts in inside and outside two screw channels (the Ith section) after hopper 6 enters screw channel, then move to head 1 direction under spiral shell rib promotes, come together in the second outer screw channel 52 of the IIth section of inner screw, mix；When material is pushed into the IIIth section, the most radially, enter the 3rd inner screw channel 43 of hollow external screw rod 4, continue to move to heading 1；When material enters the IVth section, 44 can be shunted again in the 4th outer screw channel 54 of inner screw 5 and the 4th inner screw channel of hollow external screw rod 4, finally, converge in extruder head 1, and extruded die head or other equipment molding, so material stream is importing before extruder head, experienced by the mixing alternately of many wheels and shunting in the screw channel of inside and outside screw rod, can sufficiently be mixed, conduct heat, mass transfer with melt.
nullMachine barrel used by the present invention differs widely with conventional extruder cylinder effect，Conventional extruder cylinder to collectively constitute the extrusion system of extruder with screw rod，Complete the Solid Conveying and Melting to material、The processes such as melted and melt conveying，Therefore machine barrel material and wall thickness are all had high requirements，And in the present invention，The Solid Conveying and Melting of material、Complete in the containing space that the processes such as melted and melt conveying are all formed between hollow external screw rod and inner screw，Machine barrel is not subjected to high pressure and the fretting wear with screw rod，Its material requirements is the highest，Its thickness can be the least，Therefore thin-walled machine barrel 2 is used，Hollow external screw rod 4 and material are heated by electric heating coil 3，The inside of inner screw 5 is provided with electric heating system and heats material，Use electricity swivel joint 11 and outside energising，Owing to inside screw electric-heating technology has developed the most perfect，And and non-invention core content，Therefore extruder structure schematic diagram and inner screw structural representation are all omitted，Do not draw.
In the present embodiment, in described hollow external screw rod 4, shape can be cylindrical, it is possible to for cone, described inner screw 5 profile adapts with shape in hollow external screw rod 4, and inner screw 5 profile can be cylindrical, it is possible to for cone.
In the present embodiment, the head number of described hollow external screw rod 4 can be single head, it is possible to for bull；The head number of described inner screw 5 can be single head, it is possible to for bull.
In the present embodiment, the inner spiral groove of described hollow external screw rod 4 and the screw channel of inner screw 5 external spiral groove and spiral shell rib may be designed to different section molded line, can be also pin, barrier head, annular, separation shape, flute profile, waveform.
Above in association with accompanying drawing, embodiments of the present invention are explained in detail, but the present invention is not limited to described embodiment.For the ordinary skill in the art, in the case of without departing from the principle of the present invention and objective, these embodiments are carried out multiple change, revises, replace and deform and still fall within the scope of the present invention.
Claims (6)
1. a screw channel coaxial twin-screw mixer extruding machine in opposite directions inside and outside, including head (1), thin-walled machine
Cylinder (2), electric heating coil (3), hollow external screw rod (4), inner screw (5), hopper (6), the first radial bearing group (7), the second radial bearing group (8), the first thrust bearing (9), the second thrust bearing (12), stand (10), electricity swivel joint (11), the first drive mechanism (13), the second drive mechanism (15), the first motor (14) and the second motor (16)；Wherein said electric heating coil (3) is set in thin-walled machine barrel (2) outward, described thin-walled machine barrel (2) is set in hollow external screw rod (4) outward, described hollow external screw rod (4) is set in inner screw (5) outward, and hollow external screw rod (4) thin-walled machine barrel (2) relatively and inner screw (5) are rotatable；Described head (1) is positioned at the left end of thin-walled machine barrel (2)；Described hollow external screw rod (4) installs location by the second radial bearing group (8) of right-hand member, the first thrust bearing (9) and stand (10)；Inner screw (5) installs location by the first radial bearing group (7) of right-hand member, the second thrust bearing (12) and stand (10), first radial bearing group (7) is arranged in the endoporus of hollow external screw rod (4) right-hand member, right part at hollow external screw rod (4) is provided with feeding mouth (40), described hopper (6) is located at the right-hand member of thin-walled machine barrel (2), and the discharging opening of hopper (6) connects with the feeding mouth (40) of hollow external screw rod (4)；Described first motor (14) drives the first actuating device (13) to rotate, and described first actuating device (13) drives inner screw (5) to rotate；Described second motor (16) drives the second actuating device (15) to rotate, and described second actuating device (15) drives hollow external screw rod (4) to rotate；It is characterized in that the interior die cavity of described hollow external screw rod (4) is designed with inner screw channel and interior unthreaded hole, inner screw (5) outer mold surface being coaxial therewith is designed with the outer screw channel of outer screw channel and outer polished rod, the interior unthreaded hole of hollow external screw rod (4) and inner screw channel and inner screw (5) and outer polished rod forms that material is mixing, plasticizing, conveying space.
Screw channel coaxial twin-screw mixer extruding machine in opposite directions inside and outside the most according to claim 1, it is characterized in that described hollow external screw rod (4) coordinates with inner screw (5) screw channel full section can be the combination of multiple fit system, have " the outer screw channel of the inner screw channel+inner screw of hollow external screw rod " to coordinate respectively, " the outer screw channel of the interior unthreaded hole+inner screw of hollow external screw rod " coordinates, " the outer polished rod of the inner screw channel+inner screw of hollow external screw rod " coordinates.
Screw channel coaxial twin-screw mixer extruding machine in opposite directions inside and outside the most according to claim 1, it is characterised in that the inner screw channel of described hollow external screw rod (4) can be contrary with the outer screw channel rotation direction of inner screw (5), it is possible to for identical；Hollow external screw rod (4) can be contrary with inner screw (5) direction of rotation, it is possible to for identical；If the screw channel rotation direction of this two screw rod is identical, then this two screw rods direction of rotation is identical, if the screw channel of this two screw rod is oppositely oriented, then this two screw rods direction of rotation is contrary.
Screw channel coaxial twin-screw mixer extruding machine in opposite directions inside and outside the most according to claim 1, it is characterized in that the interior shape of described hollow external screw rod (4) can be cylindrical, it is alternatively cone, described inner screw (5) profile adapts with hollow external screw rod (4) interior shape, inner screw (5) profile can be cylindrical, it is possible to for cone.
Screw channel coaxial twin-screw mixer extruding machine in opposite directions inside and outside the most according to claim 1, it is characterised in that the number of starts of described hollow external screw rod (4) can be single head, it is possible to for bull；The number of starts of inner screw (5) can be single head, it is possible to for bull.
Screw channel coaxial twin-screw mixer extruding machine in opposite directions inside and outside the most according to claim 1, it is characterised in that screw channel and the spiral shell rib of the inner spiral groove of described hollow external screw rod (4) may be designed to different section molded line；The screw channel of inner screw (5) external spiral groove and spiral shell rib may be designed to different section molded line；Can be also pin, barrier head, annular, separation shape, flute profile, waveform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510277062.1A CN106273344A (en) | 2015-05-27 | 2015-05-27 | Inside and outside screw channel coaxial twin-screw mixer extruding machine in opposite directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510277062.1A CN106273344A (en) | 2015-05-27 | 2015-05-27 | Inside and outside screw channel coaxial twin-screw mixer extruding machine in opposite directions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106273344A true CN106273344A (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510277062.1A Pending CN106273344A (en) | 2015-05-27 | 2015-05-27 | Inside and outside screw channel coaxial twin-screw mixer extruding machine in opposite directions |
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| CN (1) | CN106273344A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107691814A (en) * | 2017-10-26 | 2018-02-16 | 李菊兰 | A kind of cynomorium songaricum feed and preparation method thereof |
| CN108579978A (en) * | 2018-06-19 | 2018-09-28 | 南宁职业技术学院 | Screw transporter and its screw sleeve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1312074A (en) * | 1970-04-20 | 1973-04-04 | Hanson H F | Extrusion of polymers |
| RU2160665C2 (en) * | 1998-10-20 | 2000-12-20 | Медведев Анатолий Васильевич | Heat-exchange extrusion apparatus |
| CN204749212U (en) * | 2015-05-27 | 2015-11-11 | 顺德职业技术学院 | Mixing extruding machine of coaxial twin -screw of inside and outside screw channel in opposite directions |
-
2015
- 2015-05-27 CN CN201510277062.1A patent/CN106273344A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1312074A (en) * | 1970-04-20 | 1973-04-04 | Hanson H F | Extrusion of polymers |
| RU2160665C2 (en) * | 1998-10-20 | 2000-12-20 | Медведев Анатолий Васильевич | Heat-exchange extrusion apparatus |
| CN204749212U (en) * | 2015-05-27 | 2015-11-11 | 顺德职业技术学院 | Mixing extruding machine of coaxial twin -screw of inside and outside screw channel in opposite directions |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107691814A (en) * | 2017-10-26 | 2018-02-16 | 李菊兰 | A kind of cynomorium songaricum feed and preparation method thereof |
| CN108579978A (en) * | 2018-06-19 | 2018-09-28 | 南宁职业技术学院 | Screw transporter and its screw sleeve |
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Application publication date: 20170104 |