CN205871132U - Short screw extruder of opposition spiral - Google Patents
Short screw extruder of opposition spiral Download PDFInfo
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- CN205871132U CN205871132U CN201620725559.5U CN201620725559U CN205871132U CN 205871132 U CN205871132 U CN 205871132U CN 201620725559 U CN201620725559 U CN 201620725559U CN 205871132 U CN205871132 U CN 205871132U
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Abstract
The utility model provides a short screw extruder of opposition spiral, is including the melt -conveying passageway and the 2nd melt -conveying passageway that set up in opposite directions, a melt -conveying passageway is formed by a conveying mechanism, the 2nd melt -conveying passageway is formed by the 2nd conveying mechanism, a conveying mechanism includes first barrel (1), first screw rod (2) and first right baffle (21), the 2nd conveying mechanism includes second barrel (4), second screw rod (7) and second right side baffle (23), a conveying mechanism and the 2nd conveying mechanism coaxial line set up the both sides in gear box (11) in opposite directions, still include sleeve (3), sleeve (3) are fixed between first right baffle (21) and second right side baffle, rotatory cooperation has compounding screw rod (8) and injection screw rod (9) in sleeve (3), the screw body centre bore terminal position that sleeve (3) are corresponding first screw rod (2), second screw rod (7) is equipped with the intercommunicating pore. Short screw extruder of opposition spiral under the prerequisite that does not increase screw length, designs the miniaturized extruder of extra quality input, has improved plastify efficiency.
Description
Technical field
This utility model relates to the technical field of extruder, is specifically related to a kind of opposed spiral short screw extruder.
Background technology
Screw extruder is the visual plant of plastic cement processing, and screw rod is its core component, and the length of screw rod determines extrusion
The length of machine.In extruder, machine barrel/screw rod has three effects greatly: one is feeding conveying effect, i.e. feeding section, and two is plastication,
Particulate material is melted into plastic cement melt, i.e. fluxing zone；Three is the extruding zone of steady extruding, melt-stoichiometry effect to be had.
The good injecting products of the screw extruder quality to be expected of prior art must make screw rod long enough so that
Obtaining it and have enough mixing length with abundant heat of fusion plastic resin material, therefore, extruder increasingly has the trend of maximization.
And in recent years the product delivery cycle increasingly shorten, it is desirable to the plasticizing rate of screw rod is increasingly faster, and a lot of extruders become power not
From the heart.
Get the raw materials ready in the injecting cavity of screw-type extruder few, needing the occasion of mass storage liquid plastics, need to accelerate wink
Shi Jiare reaches shot or strengthens injecting cavity to improve liquid storage amount；The former accelerates instantaneous heating needs temperature high energy
Amount consumes big；The injection pressure that the latter strengthens after injecting cavity is little, and injection force is not enough.A kind of spiro rod length of needs design is short, metering
The long extruder in chamber meets injection needs.
Utility model content
For defect present in above-mentioned prior art, the purpose of this utility model is to provide a kind of short spiral shell of opposed spiral
Bar extruder.
The purpose of this utility model is achieved in that a kind of opposed spiral short screw extruder, including be oppositely arranged
First melt transfer passage and the second melt transfer passage, described first melt transfer passage is formed by the first conveying mechanism, institute
State the second melt transfer passage to be configured to by second conveyor, described first conveying mechanism include the first machine barrel, the first screw rod and
First right baffle plate；Described second conveyor structure includes the second machine barrel, the second screw rod and the second right baffle plate；Described first conveying mechanism
It is oppositely arranged the both sides at gear-box with second conveyor structure coaxial line；
Also include that sleeve, described sleeve are fixed between the first right baffle plate and the second right baffle plate；
First machine barrel is fixed between the first right baffle plate and gear-box, and the first screw rod and rotatable engagement are at the first machine barrel and set
Between Tong；Second machine barrel is fixed between the second right baffle plate and gear-box, and the second screw rod rotatable engagement is at the second machine barrel and sleeve
Between；The screw body right-hand member of described first screw rod and the screw body left end coaxial line docking rotatable engagement of the second screw rod；
In sleeve, rotatable engagement has batch mixing screw rod and injection screw；
Sleeve is communicated with hole, described connection at the screw body centre bore terminal position of corresponding first screw rod, the second screw rod
Hole connects the first melt transfer passage, the second melt transfer passage between described batch mixing screw rod and injection screw and sleeve lining
Space.
Further, the first screw rod includes the screw body with central through hole, and described screw body has the first supporting part, spiral shell
The body of rod is provided with the first outer spiral shell rib between the first supporting part and left free end, right from left free end in the centre bore of screw body
Spiral shell rib in hole site is risen and is provided with first in should；Described second screw rod includes the screw body with central through hole, and described screw body has
Having the second supporting part, the outside cylinder of the second screw rod is provided with the second outer spiral shell rib between the second supporting part and right part, at centre bore
In from right part corresponding in be provided with second until centre bore left part hole site in spiral shell rib.
Further, described first outer spiral shell rib is gradually lowered to the pitch of left free end identical spiral shell rib from the first supporting part,
Screw body has the circular cone oblique angle of 5 °～25 ° from the first supporting part to left free end；
Further, the external spiral passage between the first outer spiral shell rib and machine barrel and the first right baffle plate is the first external screw thread conveying
Section A, in described first, the internal coiling passage between spiral shell rib and sleeve starts the screw body to the first screw rod from left free end endoporus
Right part till be the first internal coiling fluxing zone B, the passage between the left free end of described screw body to the first right baffle plate is
First annular linkage section C, described first melt transfer passage includes the first external screw thread transportation section A, first annular linkage section C and
The melt canal that one internal coiling fluxing zone B is linked in sequence, in the melt conveying direction and first of described first external spiral delivery end A
The melt conveying direction of spiral fluxing zone B is contrary；External spiral between second outer spiral shell rib and the second machine barrel and the second right baffle plate leads to
Road is the second external screw thread transportation section A, and in described second, the internal coiling passage between spiral shell rib and sleeve starts to from right free end
It is the second internal coiling fluxing zone B till the left part of the screw body of two screw rods；Described right free end is between the second right baffle plate
Passage is the second annular linkage section C；Described second melt transfer passage includes that the second external screw thread transportation section A, the second annular connect
The melt canal that section C and the second internal coiling fluxing zone B is linked in sequence, the melt conveying direction of described second external spiral delivery end A
Contrary with the melt conveying direction of the second internal coiling fluxing zone B.
Further, the first angle of the axis of the first intercommunicating pore and the axis of injection screw is 55 °～75 °, described the
The axis of two intercommunicating pores is 140 °～165 ° with the second angle of the axis of injection screw.
Further, described gear-box be axially respectively provided on two sides with clutch shaft bearing press mounting hole and the second bearing press mounting hole,
Being provided with clutch shaft bearing in clutch shaft bearing press mounting hole, be provided with the second bearing in the second bearing press mounting hole, the first supporting part rotates and supports
On clutch shaft bearing, the left free end of the screw body of the first screw rod is unsettled to be arranged in the first machine barrel, and the second supporting part rotates and props up
Support is on the second bearing, and the right free end of the screw body of the second screw rod is unsettled to be arranged in the second machine barrel.
Further, described first screw rod stretches into the part in gear-box and sets and be combined with the first rotating driving device, described
First rotating driving device includes the first driven gear, the first driving gear and the first drive shaft, fixedly mounts in screw body
Having the first driven gear, described first driven gear and the engagement of the first driving gear, the first driving gear is arranged on the first driving
On axle, described first drive shaft is rotatably provided in gear-box, and described first drive shaft is driven by motor；Described second screw rod is stretched
Entering the part in gear-box to set and be combined with the second rotating driving device, described second rotating driving device includes the second driven tooth
Wheel, the second driving gear and the second drive shaft, be installed with the second driven gear, described second driven gear in screw body
Engaging with the second driving gear, the second driving gear is arranged in the second drive shaft, and described second drive shaft is rotatably provided in tooth
In roller box, described second drive shaft is driven by motor.
Further, described batch mixing screw rod includes batch mixing body and batch mixing spire, and the through described batch mixing of centre bore is originally
Body and batch mixing spire.
Further, injection screw includes injecting body and injection spire, and injection body is located in batch mixing screw rod
Centre bore in.
Further, the external spiral transportation section A of described first screw rod is initiating terminal from the left side of the first supporting part, and this initiates
End is provided with the first hopper；The external spiral transportation section A of described second screw rod is supported for initiating terminal from second, and this initiating terminal is provided with second
Hopper.
Described opposed spiral short screw extruder, is carried by the first melt transfer passage being arranged oppositely and the second melt
The cooperation of passage, each melt transfer passage is again transportation section and fluxing zone is folded with, and solves the small-sized of double-material extruder
Change problem:
1) foldable structure of melt transfer passage:
The screw rod of inside and outside spiral shell rib, screw body has outer spiral shell rib and interior spiral shell rib simultaneously, and outer spiral shell rib is used for coordinating with machine barrel, interior spiral shell
Rib is for coordinating with sleeve；
Coordinating of internal and external screw passage, screw rod and machine barrel and sleeve, outer spiral shell rib and machine barrel cooperatively form external spiral passage, outward
Helical duct is responsible for carrying particulate material to internal coiling passage；Interior spiral shell rib and sleeve cooperatively form internal coiling passage；Circular passage
Being connected between external spiral passage and internal coiling passage, external spiral passage is constituted entirety with internal coiling channel connection by communicating passage
Screw rod fluid passage so that external spiral passage relative to internal coiling passage fold, non-rectilinear order arrangement, shorten screw rod long
Degree；
2) the first melt transfer passage being arranged oppositely and the second melt transfer passage, the first melt and the second melt are at set
Cross-mixing in the middle part of Tong, is then entered in batch mixing spiral by intercommunicating pore, is fed forward to storing area；
3) setting of sleeve, has isolated the first melt transfer passage and the second melt transfer passage and blending transportation passage.
By cooperating of three above structure, jointly accomplish that external spiral passage folds relative to internal coiling passage,
The most opposed two melt transfer passages, have isolated the first melt transfer passage and the second melt transfer passage and blending transportation leads to
Road, it is achieved that the miniaturization of extruder；Thermoplastic resin makes resin quilt through the dynamic shearing stress of annular communicating passage
Flashmelt, it is simple to form the hot-melt resin of homogenizing high pressure at extruding zone；Screw design becomes to have inside and outside spiral shell rib, spiral shell simultaneously
If the sleeve that the maintenance in terms of rib abrasion more renews, repair and replacement low cost.
Accompanying drawing explanation
Fig. 1 is the main sectional view of this utility model opposed spiral short screw extruder.
Fig. 2 is the sleeve partial sectional view of this utility model opposed spiral short screw extruder.
Reference in above-mentioned figure:
1 first machine barrel, 1.1 first flanges, 2 first screw rods, 3 sleeves, 4 second machine barrels, 4.1 second flanges, 5 first material
Bucket, 6 second hoppers, 7 second screw rods, 8 batch mixing screw rods, 9 injection screws, 10 storing areas, 11 gear-boxes, 12 first driven gears,
13 second driven gears, 14 first driving gears, 15 second driving gears, 16 second bearing press mounting holes, 17 pressing plates, 18 second
Bearing, 19 second driving shafts, 20 clutch shaft bearings, 21 first right baffle plates, 22 die heads, 23 second right baffle plates, 24 driving means, 25
One bearing press mounting hole
2.1 first outer spiral shell ribs, spiral shell rib in 2.2 first, 2.3 first supporting parts
7.1 second outer spiral shell ribs, spiral shell rib in 7.2 second, 7.3 second supporting parts,
3.1 first intercommunicating pores, 3.2 second intercommunicating pores, 3.3 first guiding gutters, 3.4 second guiding gutters
8.1 batch mixing bodies, 8.2 batch mixing spires
9.1 injection bodies, 9.2 injection spires
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but be not limited to model of the present utility model
Enclose.
As it can be seen, a kind of opposed spiral short screw extruder, including the first melt transfer passage being oppositely arranged and
Two melt transfer passages, described first melt transfer passage is formed by the first conveying mechanism, described second melt transfer passage by
Second conveyor is configured to.Described first conveying mechanism includes first machine barrel the 1, first screw rod 2, and the first screw rod 2 is rotatably provided in
In first machine barrel 1, the first screw rod 2 includes the screw body with central through hole, and described screw body has the first supporting part 2.3, the
The outside cylinder of one screw rod 2 is provided with the first outer spiral shell rib 2.1 between the first supporting part 2.3 and left part, from left end in centre bore
Portion corresponding in hole site rise be provided with first in spiral shell rib 2.2, described sleeve 3 coordinates in first in spiral shell rib 2.2；
In first outer spiral shell rib 2.1 and first, spiral shell rib 2.2 hand of spiral is reversed, and the first outer spiral shell rib 2.1 is fight hand flight
Time, in first, spiral shell rib 2.2 is left-handed spiral shell rib, such guarantee when the first screw rod 2 rotates counterclockwise, the first outer spiral shell rib 2.1
Conveying direction be the conveying to the left that material moves to the first supporting part 2.3 spiral, in first, the conveying direction of spiral shell rib 2.2 is thing
The conveying to the right that material moves to the first supporting part 2.3 spiral.
First supporting part 2.3 is rotatably supported on clutch shaft bearing 20, the pressing plate 17 of gear-box 11 and the right side of the first machine barrel 1
End flanges 1.1 is fixing to be connected, and the left end of the first machine barrel is fixed on the first right baffle plate 21；Described clutch shaft bearing 20 is by flange 1.1
Being fitted in the clutch shaft bearing press mounting hole 25 of gear-box 11, described gear-box 11 and described first right baffle plate 21 are installed in frame
On；The screw body of the first screw rod 2 is rotatably supported on the first supporting part 2.3；The left end of screw body is free end, is referred to as left unsettled
End, described left free end extend into the spacing distance H of the right baffle plate of distance first 21 in the first machine barrel 1.
First supporting part 2.3 side of described first screw rod 2 is provided with the first rotating driving device, and described first rotates driving
Device includes the first driven gear the 12, first driving gear 14 and the first drive shaft 19, fixing in the screw body of the first screw rod 2
Being provided with the first driven gear 12, described first driven gear 12 engages with the first driving gear 14, and the first driving gear 14 is pacified
Being contained in the first drive shaft 19, described first drive shaft 19 is rotatably provided in gear-box 11, and described first drive shaft 19 is by electricity
Machine drives.
Described second conveyor structure includes second machine barrel the 4, second screw rod 7, and described second screw rod 7 is rotatably provided in the second machine
In cylinder 4, described second screw rod 7 includes the screw body with central through hole, and described screw body has the second supporting part 7.3, second
The outside cylinder of screw rod 7 is provided with the second outer spiral shell rib 7.1 between the second supporting part 7.3 and right part, from right part in centre bore
Corresponding in hole site rise until centre bore left part be provided with second in spiral shell rib 7.2, described sleeve 3 coordinates spiral shell in described second
In rib 7.2；
In second outer spiral shell rib 7.1 and second, spiral shell rib 7.2 hand of spiral is reversed, and the second outer spiral shell rib 7.1 is fight hand flight
Time, in second, spiral shell rib 7.2 is left-handed spiral shell rib, such guarantee when the second screw rod 7 rotates counterclockwise, the second outer spiral shell rib 7.1
Conveying direction be the conveying to the right that material moves to the second supporting part 7.3 spiral, in second, the conveying direction of spiral shell rib 7.2 is thing
The conveying to the left that material moves to the second supporting part 7.3 spiral.
Second supporting part 7.3 of described second screw rod 7 is rotatably supported on the second bearing 18, the pressing plate 17 of gear-box 11
Joins with the fixing connection of right-hand member flange 4.1 of the second machine barrel 4, the left end of the second screw rod 7 and the right-hand member docking rotation of the first screw rod 2
Close；Described second bearing 18 is fitted in the second bearing press mounting hole 16 of gear-box 11 by flange 4.1, described gear-box 11 and institute
State the second right baffle plate 23 to be installed in frame；The screw body of the second screw rod 7 is rotatably supported on the second supporting part 7.3；Screw rod
The right-hand member of body is free end, the rightest free end, and described right free end extend into the right baffle plate of distance second 23 in the second machine barrel 4
Spacing distance H.
Second supporting part 7.3 side of described second screw rod 7 is provided with the second rotating driving device, and described second rotates driving
Device includes the second driven gear the 13, second driving gear 15 and the second drive shaft 23, fixing in the screw body of the second screw rod 7
Being provided with the second driven gear 13, described second driven gear 13 engages with the second driving gear 15, and the second driving gear 15 is pacified
Being contained in the second drive shaft 23, described second drive shaft 23 is rotatably provided in gear-box 11, and described second drive shaft 23 is by electricity
Machine drives.
Described sleeve 3 two ends are fixed in the first right baffle plate 21 and the second right baffle plate 23, and described sleeve 3 is simultaneously fitted within
In the first of one screw rod 2 in the second of spiral shell rib 2.2 and the second screw rod 7 in spiral shell rib 7.2.Described first outer spiral shell rib 2.1 is from first
Support part 2.3 is gradually lowered to the pitch identical spiral shell rib of left free end, and screw body has 5 ° from the first supporting part 2.3 to left free end
～the circular cone oblique angle of 25 °.External spiral passage between first outer spiral shell rib 2.1 and the first machine barrel 1 is the first external screw thread transportation section A,
The external spiral transportation section A of described first screw rod 2 is initiating terminal from the left side of the first supporting part 2.3, and this initiating terminal is provided with the first material
Bucket 5.In described first, the internal coiling passage between spiral shell rib 2.2 and sleeve 3 starts the spiral shell to the first screw rod 2 from left free end endoporus
It is the first internal coiling fluxing zone B till the right part of the body of rod.The left free end of described screw body is between the first right baffle plate 21
Passage is first annular linkage section C.Described first melt transfer passage includes the first external screw thread transportation section A, first annular connection
The melt canal that section C and the first internal coiling fluxing zone B is linked in sequence.The melt conveying direction of described first external spiral delivery end A
Contrary with the melt conveying direction of the first internal coiling fluxing zone B；Graininess thermoplastic resin material adds from the first hopper 5,
By the effect free end direction to the left of the first outer spiral shell rib 2.1 material gradually extruded and be fed forward, until by defeated for the first external spiral
The material of the section of sending A imports the first internal coiling fluxing zone B, thing from the first annular linkage section C of the right baffle plate of left free end and first 21
Expect that spiral melts the right-hand member being transported to the first screw body forward.
In like manner, described second outer spiral shell rib 7.1 gradually drops from the pitch identical spiral shell rib of the second supporting part 7.3 to right-hand member suspending part
Low, screw body has the circular cone oblique angle of 5 °～25 ° from the first supporting part 7.3 to right-hand member suspending part.Second outer spiral shell rib 7.1 and second
External spiral passage between machine barrel 4 is the second external screw thread transportation section A, and the external spiral transportation section A of described second screw rod 7 is from second
Support part 7.3 is initiating terminal, and this initiating terminal is provided with the second hopper 6, and the end end of described second external spiral transportation section A is until screw body
Right free end, the spacing distance H of the described right right baffle plate of free end distance second 23.In described second spiral shell rib 7.2 and sleeve 3 it
Between internal coiling passage start to the left part of the screw body of the second screw rod 7 to be the second internal coiling fluxing zone from right free end
B.Described right free end to the passage between the second right baffle plate 23 is the second annular linkage section C.Described second melt transfer passage
The melt canal being linked in sequence including the second external screw thread transportation section A, the second annular linkage section C and the second internal coiling fluxing zone B.Institute
The melt conveying direction stating the melt conveying direction of the second external spiral delivery end A and the second internal coiling fluxing zone B is contrary；Graininess
Thermoplastic resin material adds from the first hopper 6, the effect extreme direction to the right of the second outer spiral shell rib 7.1 gradually extruded by material
It is fed forward, until the material of the second external spiral transportation section A is connected from the second annular of the right baffle plate of left free end and second 23
Section imports the second internal coiling fluxing zone B, and material spiral forward melts the left end being transported to the second screw body.
First conveying direction of the first melt in described first internal coiling fluxing zone B is transported to the first screw rod from left to right
Body right-hand member, the second conveying direction of second melt of the second internal coiling fluxing zone B is transported to the second screw body left end from right to left,
First conveying direction and the second conveying direction are at coaxial line, in opposite direction.
In sleeve 3, rotatable engagement has batch mixing screw rod 8 and injection screw 9, described batch mixing screw rod 8 to include batch mixing body 8.1
With batch mixing spire 8.2, the through described batch mixing body 8.1 of centre bore and batch mixing spire 8.2.Injection screw 9 includes injection
Body 9.1 and injection spire 9.2, injection body 9.1 is located in the centre bore of batch mixing screw rod 8.Batch mixing spire 8.2
Pitch identical spiral shell rib is gradually lowered, and screw body has 5 °～the circular cone of 25 ° from the right-hand member of batch mixing body 8.1 to right-hand member suspending part
Oblique angle.
Sleeve 3 is provided with the second intercommunicating pore 3.2 at the screw body centre bore terminal position of corresponding first screw rod 2, corresponding the
The screw body centre bore terminal position of two screw rods 7 is provided with the first intercommunicating pore 3.1, the axis of the first intercommunicating pore 3.1 and injection screw 9
The first angle α of axis be 55 °～75 °, the second folder of the axis of described second intercommunicating pore 3.2 and the axis of injection screw 9
Angle beta is 140 °～165 °.Such it is disposed to, when the second melt of the second melt transfer passage is transported to from right to left
During two screw body left ends, when the first melt of the first melt transfer passage is transported to the first screw body right-hand member from left to right, due to
The setting of the incline direction of above-mentioned first intercommunicating pore 3.1 and the second intercommunicating pore 3.2, the second melt can tend to forward from second even
Through hole 3.2 enters in the batch mixing spiral of batch mixing screw rod 8, and the first melt can tend to continue to enter from the first intercommunicating pore 3.1 forward
Entering in the batch mixing spiral of batch mixing screw rod 8, the second melt and the first melt can carry at the second melt transfer passage and the first melt
Channel end portion intersects mixing further.
It is further preferred that described first intercommunicating pore 3.1 and its circumference interval arrange, the first intercommunicating pore 3.1 front
Being provided with the first guiding gutter 3.3, the second intercommunicating pore 3.2 front is provided with the second guiding gutter 3.4.
First melt and the second melt enter batch mixing screw rod 8 from the first intercommunicating pore and the second intercommunicating pore, at batch mixing spiral
In fully mixing spiral enter storing area 10 through injection spiral 9.2 forward.Storing area 10 forms back pressure, forces batch mixing screw rod 8
Retreat with injection screw 9.
The spiral shell rib of described first screw rod actually melts helical duct and first internal coiling of the first external spiral transportation section
The helical duct of the section of melting obtains the first melt transfer passage after folding, the spiral shell rib of described second screw rod is actually second
The helical duct of external spiral transportation section and the helical duct of the second internal coiling melt zone obtain the second melt conveying after folding
Passage, the melt of two melt transfer passages meets in the middle of sleeve and enters after intersecting in batch mixing spiral and injection spiral, then enters
Entering storing area, melt spatial channel between batch mixing spiral and injection spiral and sleeve lining is referred to as batch mixing transfer passage, by
In the heat-blocking action of sleeve 3, the batch mixing melt of this batch mixing transfer passage will not be overheated.Screw rod total length depends on first shortened
Screw rod 2, plus the total length of the second screw rod 7, compares the length of the extra quality screw rod of prior art, and its spiro rod length is relatively short, squeezes
Go out machine relatively small.
Screw body correspondence internal coiling fluxing zone B is provided with heater, and described heater is positioned in screw body near center
The position of through-hole wall.It is further preferred that be provided with heat insulation layer outside heater, to prevent outer spiral shell rib adhesion material.
The right-hand member of described sleeve connects die head 22, is provided with drainage screen in die head 22.
Described opposed spiral short screw extruder, is carried by the first melt transfer passage being arranged oppositely and the second melt
The cooperation of passage, each melt transfer passage is again transportation section and fluxing zone is folded with, and shortens spiro rod length, is not increasing
On the premise of adding spiro rod length, design the miniaturization extruder of extra quality input, improve plasticizing efficiency.
Claims (10)
1. an opposed spiral short screw extruder, carries logical including the first melt transfer passage being oppositely arranged and the second melt
Road, described first melt transfer passage is formed by the first conveying mechanism, and described second melt transfer passage is by second conveyor structure
Formed, it is characterised in that
Described first conveying mechanism includes the first machine barrel (1), the first screw rod (2) and the first right baffle plate (21)；Described second conveying
Mechanism includes the second machine barrel (4), the second screw rod (7) and the second right baffle plate (23)；Described first conveying mechanism and second conveyor
Structure coaxial line is oppositely arranged the both sides in gear-box (11)；
Also include that sleeve (3), described sleeve (3) are fixed between the first right baffle plate (21) and the second right baffle plate；
First machine barrel (1) is fixed between the first right baffle plate (21) and gear-box (11), and the first screw rod (2) and rotatable engagement are
Between one machine barrel and sleeve；Second machine barrel (4) is fixed between the second right baffle plate (23) and gear-box (11), the second screw rod (7)
Rotatable engagement is between the second machine barrel and sleeve；The screw body right-hand member of described first screw rod (2) and the screw body of the second screw rod (7)
Left end coaxial line docking rotatable engagement；
In sleeve (3), rotatable engagement has batch mixing screw rod (8) and injection screw (9)；
Sleeve (3) is respectively equipped with first even at the screw body centre bore terminal position of corresponding first screw rod (2), the second screw rod (7)
Through hole (3.1), the second intercommunicating pore (3.2), described first intercommunicating pore (3.1) connects the first melt transfer passage, the second intercommunicating pore
(3.2) the second melt transfer passage is connected to the space between described batch mixing screw rod and injection screw and sleeve lining.
Opposed spiral short screw extruder the most as claimed in claim 1, it is characterised in that the first screw rod (2) includes having center
The screw body of through hole, described screw body has the first supporting part (2.3), and screw body sets between the first supporting part and left free end
There is the first outer spiral shell rib (2.1), spiral shell rib in being provided with first from hole site in the correspondence of left free end in the centre bore of screw body
(2.2)；Described second screw rod (7) includes the screw body with central through hole, and described screw body has the second supporting part (7.3),
The outside cylinder of the second screw rod is provided with the second outer spiral shell rib (7.1) between the second supporting part and right part, from right-hand member in centre bore
Spiral shell rib (7.2) in being provided with second until centre bore left part is played in the corresponding interior hole site in portion.
Opposed spiral short screw extruder the most as claimed in claim 2, it is characterised in that described first outer spiral shell rib (2.1) is from
One supporting part (2.3) is gradually lowered to the pitch identical spiral shell rib of left free end, and screw body is unsettled to a left side from the first supporting part (2.3)
End has the circular cone oblique angle of 5 °～25 °.
Opposed spiral short screw extruder the most as claimed in claim 2, it is characterised in that described first outer spiral shell rib (2.1) and the
External spiral passage between one machine barrel (1) and the first right baffle plate (21) is the first external screw thread transportation section A, described interior spiral shell rib (2.2)
And the internal coiling passage between sleeve (3) starts to the right part of the screw body of the first screw rod (2) from left free end endoporus
Being the first internal coiling fluxing zone B, the passage between the left free end of described screw body to the first right baffle plate (21) is first annular
Linkage section C, described first melt transfer passage includes the first external screw thread transportation section A, first annular linkage section C and the first internal coiling
The melt canal that fluxing zone B is linked in sequence, the melt conveying direction of described first external spiral delivery end A and the plasticizing of the first internal coiling
The melt conveying direction of section B is contrary；The outer spiral shell rib (7.1) of described second conveyor structure and the second machine barrel (4) and the second right baffle plate
(23) the external spiral passage between is the second external screw thread transportation section A, the internal coiling between described interior spiral shell rib (7.2) and sleeve (3)
Passage starts to the left part of the screw body of the second screw rod (7) to be the second internal coiling fluxing zone B from right free end；The described right side
Free end to the passage between the second right baffle plate (23) is the second annular linkage section C；Described second melt transfer passage includes
The melt canal that two external screw thread transportation section A, the second annular linkage section C and the second internal coiling fluxing zone B are linked in sequence, described second
The melt conveying direction of external spiral delivery end A and the melt conveying direction of the second internal coiling fluxing zone B are contrary.
Opposed spiral short screw extruder the most as claimed in claim 1, it is characterised in that the axis of the first intercommunicating pore (3.1) with
First angle (α) of the axis of injection screw (9) is 55 °～75 °, the axis of described second intercommunicating pore (3.2) and injection screw
(9) second angle (β) of axis is 140 °～165 °.
Opposed spiral short screw extruder the most as claimed in claim 1, it is characterised in that the axial both sides of described gear-box (11)
Being respectively equipped with clutch shaft bearing press mounting hole (25) and the second bearing press mounting hole (16), clutch shaft bearing press mounting hole is provided with the first axle in (25)
Holding (20), be provided with the second bearing (18) in the second bearing press mounting hole (16), the first supporting part (2.3) is rotatably supported on clutch shaft bearing
(20) on, the left free end of the screw body of the first screw rod is unsettled to be arranged in the first machine barrel, and the second supporting part (7.3) rotates and supports
On the second bearing (18), the right free end of the screw body of the second screw rod is unsettled to be arranged in the second machine barrel.
Opposed spiral short screw extruder the most as claimed in claim 1, it is characterised in that described first screw rod (2) stretches into gear
Part in case sets and is combined with the first rotating driving device, described first rotating driving device include the first driven gear (12),
First driving gear (14) and the first drive shaft (19), be installed with the first driven gear (12) in screw body, and described
One driven gear (12) engages with the first driving gear (14), and the first driving gear (14) is arranged in the first drive shaft (19),
Described first drive shaft (19) is rotatably provided in gear-box (11), and described first drive shaft (19) is driven by motor；Described
Two screw rods (7) stretch into the part in gear-box and set and be combined with the second rotating driving device, and described second rotating driving device includes
Second driven gear (13), the second driving gear (15) and the second drive shaft (26), screw body is installed with second from
Moving gear (13), described second driven gear (13) engages with the second driving gear (15), and the second driving gear (15) is arranged on
In second drive shaft (26), described second drive shaft (26) is rotatably provided in gear-box (11), described second drive shaft (26)
Driven by motor.
Opposed spiral short screw extruder the most as claimed in claim 1, it is characterised in that described batch mixing screw rod (8) includes batch mixing
Body (8.1) and batch mixing spire (8.2), the through described batch mixing body (8.1) of centre bore and batch mixing spire (8.2).
Opposed spiral short screw extruder the most as claimed in claim 8, it is characterised in that injection screw (9) includes injecting body
Portion (9.1) and injection spire (9.2), injection body (9.1) is located in the centre bore of batch mixing screw rod (8).
Opposed spiral short screw extruder the most as claimed in claim 9, it is characterised in that the external spiral of described first screw rod (2)
Transportation section A is initiating terminal from the left side of the first supporting part (2.3), and this initiating terminal is provided with the first hopper (5)；Described second screw rod
(7) external spiral transportation section A is initiating terminal from the second supporting part (7.3), and this initiating terminal is provided with the second hopper (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620725559.5U CN205871132U (en) | 2016-07-11 | 2016-07-11 | Short screw extruder of opposition spiral |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620725559.5U CN205871132U (en) | 2016-07-11 | 2016-07-11 | Short screw extruder of opposition spiral |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205871132U true CN205871132U (en) | 2017-01-11 |
Family
ID=57695482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620725559.5U Expired - Fee Related CN205871132U (en) | 2016-07-11 | 2016-07-11 | Short screw extruder of opposition spiral |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205871132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042324A (en) * | 2016-07-11 | 2016-10-26 | 盐城工学院 | Contraposition spiral short screw extruder |
-
2016
- 2016-07-11 CN CN201620725559.5U patent/CN205871132U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042324A (en) * | 2016-07-11 | 2016-10-26 | 盐城工学院 | Contraposition spiral short screw extruder |
| CN106042324B (en) * | 2016-07-11 | 2019-02-26 | 盐城工学院 | A kind of opposed spiral short screw extruder |
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| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 224051 Yancheng City, Century Avenue, Jiangsu research and development building, No. 1166 Patentee after: Yancheng Institute of Technology Address before: 224051 Yancheng City hope road, Jiangsu, No. 1 Patentee before: Yancheng Institute of Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20180711 |
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| CF01 | Termination of patent right due to non-payment of annual fee |