CN205705213U - The hollow single screw extrusion machine of band vibration mandrel - Google Patents
The hollow single screw extrusion machine of band vibration mandrel Download PDFInfo
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- CN205705213U CN205705213U CN201620352033.7U CN201620352033U CN205705213U CN 205705213 U CN205705213 U CN 205705213U CN 201620352033 U CN201620352033 U CN 201620352033U CN 205705213 U CN205705213 U CN 205705213U
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- mandrel
- cored screw
- screw
- vibration
- centre bore
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Abstract
This utility model relates to the hollow single screw extrusion machine of a kind of band vibration mandrel, including extruder head, machine barrel, the cored screw of band female thread groove, hopper, stand, radial thrust bearing group, drive mechanism, motor, fixing seat, gear and mandrel；It is interior and rotatable that described cored screw is located at machine barrel, is additionally provided with centre bore in described cored screw, and described mandrel is positioned at the centre bore of cored screw, and cored screw can relatively rotate between machine barrel and mandrel；Described machine barrel, cored screw and mandrel are the most coaxial；Feature is also to include vibrator and motor control instrument, cored screw is provided with radial passage, the inwall of the centre bore of cored screw is provided with through total length continuous print inner screw channel, described vibrator is located on mandrel, described motor control instrument control vibrating device vibrates, and vibrating device band moving mandrel carries out vibrating or the motion of other forms.Its simple in construction, the thermal efficiency is high, and plastication and extrusion process is optimized, and extruded product quality is good.
Description
Technical field
This utility model relate to a kind of band vibration mandrel hollow single screw extrusion machine, be mainly used in macromolecular material mixing, plastify and extrude, belong to polymer material molding equipment technology field.
Background technology
Plastic extruding forming machine is by the visual plant of Polymer Processing molding, after polymer (granule, powder etc.) enters machine barrel and screw channel space by hopper, move forward under screw rod spiral shell rib promotes, screw rod often rotates one week, material moves forward a helical pitch, finally it is changed into molten state, is then shaped to plastic product via the equipment such as head, mould.
In the screw extruder of numerous forms, single screw extrusion machine is to occur the earliest, also it is the one being most widely used, through years development, single screw extrusion machine itself is also changed and perfect, such as Patent No. " ZL 200820121548.1 " and the single screw extrusion machine of grant number " 201446671 U ", the most respectively screw rod or machine barrel or airframe structure are changed, to improving extrusion processing characteristics；Existing single screw extrusion machine, whether common single screw extrusion machine or tapered single screw extruder, all there is simple in construction, the feature that easy to operate, production cost is relatively low, but also have it not enough: owing to the screw channel of classic screw is on screw rod excircle, material in screw channel is pulled by its screw rod and machine barrel, homogenizing, immixture are not strong especially, and owing to its screw channel is on screw rod excircle, its electric heating coil is all mounted to outside machine barrel, therefore heat scatters and disappears fast, the thermal efficiency is low, and energy consumption is big.
Relying on tradition single screw extrusion machine, many researcheres have carried out a large amount of exploration, wherein, have had part researcher that vibration is incorporated into plastics forming field.Some researcheres utilize spiral shell vibration of bar on the impact of material plasticizing extrusion to optimize extrusion process, to improve extruded product quality.Part researcher is also had to utilize the vibration of plunger or piston to reach to optimize the purpose plastifying, extrude and inject the course of processing.Foreign literature[1,2]Describing its rheology injection (mo(u)lding) machine developed, first its polymer melt is injected vibration cavity by barrel under screw acting, then switches the direction of valve, and is applied vibration by piston.Finally injected mold cavity by piston, while pressurize, continue to make melt to be under pressure before mould gate freezes effect of vibration.
In order to further improve plastication and extrusion process, improve product property, except " screw channel is outside " screw configuration in traditional sense is changed by needs, simultaneously, it is necessary in extrusion, introduce vibration in new ways, to strengthen its function further, improve quality, simplify structure.
List of references:
[1 Ibar JP. Control of polymer properties by melt vibration technology:
a review. Polymer Engineering and Science. 1998;38(1):1-20
[2]
A.Minardi,M.Boudeulle,E.Duval,S Etienne.Effect of the
moulding conditions on the semicrystalline structure of polypropylene. Polymer. 1997,38(15):3957-3965。
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art to provide the hollow single screw extrusion machine of a kind of band vibration mandrel, and its simple in construction, the thermal efficiency is high, and plastication and extrusion process is optimized, and extruded product quality is good.
In order to achieve the above object, this utility model is realized in, it is the hollow single screw extrusion machine of a kind of band vibration mandrel, including extruder head, machine barrel, the cored screw of band female thread groove, hopper, stand, radial thrust bearing group, drive mechanism, motor, fixing seat, gear and mandrel；It is interior and rotatable that described cored screw is located at machine barrel, is additionally provided with centre bore in described cored screw, and described mandrel is positioned at the centre bore of cored screw, and cored screw can relatively rotate between machine barrel and mandrel；Described machine barrel, cored screw and mandrel are the most coaxial；Characterized by further comprising vibrator and motor control instrument, cored screw is provided with radial passage, the inwall of the centre bore of cored screw is provided with through total length continuous print inner screw channel, described vibrator is located between fixing seat and mandrel, described motor control instrument control vibrating device vibrates, and vibrating device band moving mandrel carries out vibrating or the motion of other forms.
In the technical program, the centre bore of described cored screw is cylindrical hole or round taper hole, and corresponding mandrel is cylinder or cone.
In the technical program, if the centre bore of cored screw is cylindrical hole, then vibrator band moving mandrel makees the mode vibrated and is: axial vibration or circular vibration or carry out axial vibration and circular vibration simultaneously, or vibrator band moving mandrel makees circumference rotary motion.
In the technical program, if centre bore is round taper hole in cored screw, then vibrator band moving mandrel makees circumferencial direction pulsation whirling vibration or directly makees circumferencial direction rotary motion.
This utility model compared with prior art, has the advantage that
1, this extruder uses the cored screw of " including screw channel ", thoroughly overturn and change classic screw extruder screw channel structure on screw rod cylindrical, change plasticizing extrusion mechanism, it it is the innovation in a kind of principle, make screw rod that material to be pulled, homogenizing, mix, stretch, shear action substantially increases, processing form is had significant impact, and melt quality is high, and product property is good.
2, it is located in pitch hole due to screw channel, and mandrel also is located in pitch hole, therefore when screw rod rotating plasticization material, the vibration of mandrel is conducive to strengthening material plasticizing process, after having plastified the entrance extrusion stage, the vibration of mandrel is more advantageous for mass-and heat-transfer and the homogenizing of melting material, effective viscoelasticity of plastic melt and viscosity reduce, mobility increases, the mixing of material is sheared and is strengthened, stretching and impact strength improve, and density becomes big, and goods interior quality and presentation quality are all greatly improved and improve.
3, compared to the mode of vibration of other versions in plastics forming, the advantage that " mandrel vibration " mode of employing has simple in construction, reliable operation.
4, owing to the inner screw channel of cored screw is in cored screw endoporus, inside screw installed by electric heating device, it is in fully sealed position, therefore, heat scatters and disappears, and much lower than traditional single screw extrusion machine (screw channel of traditional single screw extrusion machine is outside screw rod, therefore, it is outer that corresponding electric heating coil is also contained in machine barrel), therefore the thermal efficiency is high, material is pulled by novel inner screw channel screw rod, mixing, homogenizing is strengthened, therefore, material can be made in the short period, the most available sufficient homogenizing in relatively short screw stroke, melted, and, shorten material at machine barrel residence time, material degraded in machine barrel can be reduced, this is the most favourable to extrusion processing Thermo-sensitive material.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is the structural representation of this utility model embodiment two.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further.At this it should be noted that be adapted to assist in for the explanation of these embodiments and understand this utility model, but it is not intended that restriction of the present utility model.As long as just can be combined with each other additionally, technical characteristic involved in each embodiment of this utility model disclosed below does not constitutes conflict each other.
In this utility model describes, term " longitudinally ", " laterally ", " on " and the orientation of the instruction such as D score or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model rather than requires that this utility model must be with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Embodiment one
As shown in Figure 1, it is the hollow single screw extrusion machine of a kind of band vibration mandrel, including extruder head 1, machine barrel 2, cored screw 3, hopper 4, stand 5, radial thrust bearing group 6, drive mechanism 7, motor 8, vibrator 9, fixing seat 10, motor control instrument 11, gear 12 and mandrel 13；Wherein
Described extruder head 1 is arranged on the right-hand member i.e. port of export of machine barrel 2 of machine barrel 2, and extruder head 1 connects with the discharging opening of machine barrel 2；Described hopper 4 is arranged on the left end of machine barrel 2；
Described cored screw 3 is located in machine barrel 2, centre bore is had in cored screw 3, it is provided with radial passage 301 in the left part of cored screw 3, described radial passage 301 connects with the discharging opening of hopper 4, the inwall of the centre bore of cored screw 3 is provided with through total length continuous print inner screw channel 302, the left end of described inner screw channel 302 connects with radial passage 301, and the right-hand member of inner screw channel 302 connects with the discharging opening of machine barrel 2, and the left part of cored screw 3 is stretched out outside machine barrel 2；
Described stand 5, radial thrust bearing group 6 and gear 12 are separately mounted to the left part of cored screw 3, and described motor 8 drives drive mechanism 7, described drive mechanism 7 driven gear 12, and described gear 12 drives and rotates at cored screw 3；
Described mandrel 13 is positioned at the centre bore of cored screw 3, and cored screw 3 can relatively rotate between machine barrel 2 and mandrel 13, and machine barrel 2, cored screw 3 and mandrel 13 are the most coaxial；Cored screw 3 is stretched out in the left part of mandrel 13, and the left end at mandrel 13 installs vibrator 9, and vibrator 9 is arranged on fixing seat 10；Vibrator 9 can carry out vibrating or the motion of other forms with band moving mandrel 13, and described motor control instrument 11 controls vibrator 9 and vibrates.
In the present embodiment, described cored screw 3 centre bore can be cylindrical hole, mandrel 13 shape adapts with centre bore in cored screw 3, mandrel 13 is cylinder, mandrel 13 can have a multiple mode of vibration: axial vibration, circular vibration, carry out axial vibration and circular vibration simultaneously, or vibrator 9 band moving mandrel 13 makees circumference rotary motion.
During work, motor 8 drives cored screw 3 to rotate by drive mechanism 7 and gear 12, the inner screw channel 302 of the centre bore that material enters cored screw 3 from hopper 4 by the radial passage 301 of machine barrel 1 and cored screw 3, under the promotion of spiral shell rib, inner screw channel 302 along centre bore moves to extruder head 1, finally by extrusion neck ring mold, while cored screw 3 rotates plastifying material, motor control instrument 11 controls vibrator 9 band moving mandrel 13 and vibrates, due in material plasticizing extrusion whole process, mandrel 13 all can vibrate, so enhancing the mixing of material, extruding, homogenizing, optimize plastication and extrusion process.
Electric heater is arranged on the inside of cored screw 3, material is heated, due to electroheat technology relative maturity, and non-this patent key content, therefore draw in screw-rod structure schematic diagram, and, owing to electric heating device is located at the inside of inner screw channel plasticized screw 3, being in completely enclosed environment, its heat scatters and disappears few, therefore, the thermal efficiency is high.
Embodiment two
As shown in Figure 2, it is the hollow single screw extrusion machine of a kind of band vibration mandrel, its structure and working principle is substantially identical with embodiment one, except that the centre bore of cored screw 3 is cone, so mandrel 13 shape should adapt with the shape of centre bore in cored screw 3, mandrel 13 is also round cone, and mandrel 13 is made circumferencial direction pulsation whirling vibration in the centre bore of cored screw 3 or directly makees circumferencial direction rotary motion.
Above in association with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to described embodiment.For the ordinary skill in the art, in the case of without departing from principle of the present utility model and objective, these embodiments are carried out multiple change, revises, replace and deform and still fall within protection domain of the present utility model.
Claims (4)
1. a hollow single screw extrusion machine for band vibration mandrel, including extruder head (1), machine barrel (2), the cored screw (3) of band female thread groove, hopper (4), stand (5), radial thrust bearing group (6), drive mechanism (7), motor (8), fixing seat (10), gear (12) and mandrel (13)；It is interior and rotatable that described cored screw (3) is located at machine barrel (2), it is additionally provided with centre bore in described cored screw (3), described mandrel (13) is positioned at the centre bore of cored screw (3), and cored screw (3) can relatively rotate between machine barrel (2) and mandrel (13)；Described machine barrel (2), cored screw (3) and mandrel (13) are the most coaxial；Characterized by further comprising vibrator (9) and motor control instrument (11), cored screw (3) is provided with radial passage (301), the inwall of the centre bore of cored screw (3) is provided with through total length continuous print inner screw channel (302), described vibrator (9) is located between fixing seat (10) and mandrel (13), described motor control instrument (11) controls vibrating device (9) vibration, and vibrating device (9) band moving mandrel (13) carries out vibrating or the motion of other forms.
The hollow single screw extrusion machine of band the most according to claim 1 vibration mandrel, it is characterised in that the centre bore of described cored screw (3) is cylindrical hole or round taper hole, and corresponding mandrel (13) is cylinder or cone.
The hollow single screw extrusion machine of band the most according to claim 2 vibration mandrel, if it is characterized in that, the centre bore of cored screw (3) is cylindrical hole, then vibrator (9) band moving mandrel (13) makees the mode vibrated and is: axial vibration or circular vibration or carry out axial vibration and circular vibration simultaneously, or vibrator (9) band moving mandrel (13) makees circumference rotary motion.
The hollow single screw extrusion machine of band the most according to claim 2 vibration mandrel, if it is characterized in that, cored screw (3) interior centre bore is round taper hole, then vibrator (9) band moving mandrel (13) makees circumferencial direction pulsation whirling vibration or directly makees circumferencial direction rotary motion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620352033.7U CN205705213U (en) | 2016-04-25 | 2016-04-25 | The hollow single screw extrusion machine of band vibration mandrel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620352033.7U CN205705213U (en) | 2016-04-25 | 2016-04-25 | The hollow single screw extrusion machine of band vibration mandrel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105751475A (en) * | 2016-04-25 | 2016-07-13 | 顺德职业技术学院 | Hollow single screw extruder with vibrating mandrel |
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2016
- 2016-04-25 CN CN201620352033.7U patent/CN205705213U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105751475A (en) * | 2016-04-25 | 2016-07-13 | 顺德职业技术学院 | Hollow single screw extruder with vibrating mandrel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20190425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |