CN105751475A - Hollow single screw extruder with vibrating mandrel - Google Patents
Hollow single screw extruder with vibrating mandrel Download PDFInfo
- Publication number
- CN105751475A CN105751475A CN201610259798.0A CN201610259798A CN105751475A CN 105751475 A CN105751475 A CN 105751475A CN 201610259798 A CN201610259798 A CN 201610259798A CN 105751475 A CN105751475 A CN 105751475A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- screw
- vibration
- vibrator
- cored screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
-
- 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
Abstract
The invention relates to a hollow single screw extruder with a vibrating mandrel.The hollow single screw extruder comprises an extruder head, a machine cylinder, a hollow screw with an inner threaded groove, a hopper, a stand, an angular-contact bearing pack, a transmission mechanism, a motor, a fixing seat, a gear and the mandrel.The hollow screw is located in the machine cylinder and can rotate, a central hole is further formed in the hollow screw, the mandrel is located in the central hole of the hollow screw, and the hollow screw can relatively rotate between the machine cylinder and the mandrel.The machine cylinder, the hollow screw and the mandrel are coaxial.The hollow single screw extruder is characterized by further comprising a vibrator and a movement controller, a radial channel is formed in the hollow screw, the continuous inner threaded groove through in the whole length is formed in the inner wall of the central hole of the hollow screw, the vibrator is arranged on the mandrel, vibration of the vibrator is controlled by the movement controller, and the vibrator can drive the mandrel to vibrate or carry out movement in other modes.The hollow single screw extruder is simple in structure and high in heat efficiency, the plasticizing and extruding process is optimized, and the quality of extruded products is good.
Description
Technical field
The present invention relates to a kind of hollow single screw extrusion machine with vibration mandrel, be mainly used in mixing, plasticizing and the extrusion of macromolecular material, 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, if the patent No. is " ZL200820121548.1 " and the single screw extrusion machine of grant number " 201446671U ", all 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, its screw rod and machine barrel to the pulling of material in screw channel, homogenizing, immixture are not particularly strong, and owing to its screw channel is on screw rod excircle, its electric heating coil is all mounted to outside machine barrel, therefore heat loss is 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 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 of plasticizing, extrusion and the injection course of processing.Foreign literature[1,2]The stream describing its development becomes injection (mo(u)lding) machine, and 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:
[1IbarJP.Controlofpolymerpropertiesbymeltvibrationtechnology:areview.PolymerEngineeringandScience.1998;38(1):1-20
[2]A.Minardi,M.Boudeulle,E.Duval,SEtienne.Effectofthemouldingconditionsonthesemicrystallinestructureofpolypropylene.Polymer.1997,38(15):3957-3965。
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art to provide a kind of hollow single screw extrusion machine with vibration mandrel, 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, the present invention is realized in, it is a kind of hollow single screw extrusion machine with vibration mandrel, including extruder head, machine barrel, with the cored screw of female thread groove, hopper, stand, radial thrust bearing group, drive mechanism, motor, fixing seat, gear and mandrel；Described cored screw is located in machine barrel and rotatable, 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 all 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 carries out vibrating with moving mandrel 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 is made, with moving mandrel, the mode vibrated and is: axial vibration or circular vibration or carry out axial vibration and circular vibration simultaneously, or vibrator band moving mandrel does circumference rotary motion.
In the technical program, if centre bore is round taper hole in cored screw, then vibrator band moving mandrel does circumferencial direction pulsation whirling vibration or directly does circumferencial direction rotary motion.
The present invention compared with prior art, has the advantage that
1, this extruder adopts the cored screw of " screw channel is interior ", 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 the pulling of material, homogenizing, mixing, stretching, shear action substantially to be increased, processing form is had significant impact, and melt quality is high, and product property is good.
2, owing to screw channel is located in pitch hole, 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 improves, 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 loss is more much lower than traditional single screw extrusion machine, and (screw channel of tradition 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, novel inner screw channel screw rod pulling material, mixing, homogenizing obtains reinforcement, therefore, material can be made in the short period, relatively just can obtain sufficient homogenizing in short screw stroke, melted, and, shorten material at machine barrel residence time, material degraded in machine barrel can be reduced, this is favourable especially to extrusion processing Thermo-sensitive material.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the embodiment of the present invention two.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment 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 constitute conflict each other.
In the present description, term " longitudinal direction ", " transverse direction ", " on " and orientation or the position relationship of the instruction such as D score be 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 the present invention with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Embodiment one
As shown in Figure 1, it is a kind of hollow single screw extrusion machine with 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 of machine barrel 2 and the port of export 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, and described drive mechanism 7 driven gear 12, 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 all 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 with moving mandrel 13 or the motion of other forms, 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 multiple mode of vibration: axial vibration, circular vibration, carry out axial vibration and circular vibration simultaneously, or vibrator 9 band moving mandrel 13 does circumference rotary motion.
During work, motor 8 drives cored screw 3 to rotate by drive mechanism 7 and gear 12, material enters the inner screw channel 302 of centre bore of cored screw 3 from the radial passage 301 that hopper 4 passes through 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, owing to extruding in whole process at material plasticizing, 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 loss is few, therefore, the thermal efficiency is high.
Embodiment two
As shown in Figure 2, it is a kind of hollow single screw extrusion machine with vibration mandrel, its structure and working principle is substantially identical with embodiment one, the difference is that the centre bore of cored screw 3 be cone, such 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 done circumferencial direction pulsation whirling vibration in the centre bore of cored screw 3 or directly does circumferencial direction rotary motion.
Above in association with accompanying drawing, embodiments of the present invention are made detailed description, but the present invention is not limited to described embodiment.For the ordinary skill in the art, when without departing from principles of the invention and objective, these embodiments are carried out multiple change, amendment, replacement and deformation to still fall within protection scope of the present invention.
Claims (4)
1. the hollow single screw extrusion machine with vibration mandrel, including extruder head (1), machine barrel (2), cored screw (3) with 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)；Described cored screw (3) is located in machine barrel (2) and rotatable, 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 all 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) carries out vibrating with moving mandrel (13) or the motion of other forms.
2. the hollow single screw extrusion machine with vibration mandrel according to claim 1, 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.
3. the hollow single screw extrusion machine with vibration mandrel according to claim 2, if it is characterized in that, the centre bore of cored screw (3) is cylindrical hole, then vibrator (9) is made, with moving mandrel (13), 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) does circumference rotary motion.
4. the hollow single screw extrusion machine with vibration mandrel according to claim 2, if it is characterized in that, cored screw (3) interior centre bore is round taper hole, then vibrator (9) band moving mandrel (13) does circumferencial direction pulsation whirling vibration or directly does circumferencial direction rotary motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610259798.0A CN105751475A (en) | 2016-04-25 | 2016-04-25 | Hollow single screw extruder with vibrating mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610259798.0A CN105751475A (en) | 2016-04-25 | 2016-04-25 | Hollow single screw extruder with vibrating mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105751475A true CN105751475A (en) | 2016-07-13 |
Family
ID=56325651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610259798.0A Pending CN105751475A (en) | 2016-04-25 | 2016-04-25 | Hollow single screw extruder with vibrating mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105751475A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021055543A1 (en) * | 2019-09-20 | 2021-03-25 | University Of Miami | Additive manufacturing of composites with short-fiber reinforcement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU632579A1 (en) * | 1977-07-18 | 1978-11-17 | Отдел Физики Полимеров Уральского Научного Центра Ан Ссср | Worm-screw extruder for polymeric materials |
| CN1644341A (en) * | 2005-01-13 | 2005-07-27 | 华南理工大学 | Multi-screwrod vibrating field induction plastic milling method and apparatus |
| CN1663777A (en) * | 2005-03-08 | 2005-09-07 | 华南理工大学 | Drive method and apparatus for screw axial pulse extruder |
| CN105269789A (en) * | 2015-10-27 | 2016-01-27 | 顺德职业技术学院 | Hollow single-screw compound co-extrusion machine |
| CN205705213U (en) * | 2016-04-25 | 2016-11-23 | 顺德职业技术学院 | The hollow single screw extrusion machine of band vibration mandrel |
-
2016
- 2016-04-25 CN CN201610259798.0A patent/CN105751475A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU632579A1 (en) * | 1977-07-18 | 1978-11-17 | Отдел Физики Полимеров Уральского Научного Центра Ан Ссср | Worm-screw extruder for polymeric materials |
| CN1644341A (en) * | 2005-01-13 | 2005-07-27 | 华南理工大学 | Multi-screwrod vibrating field induction plastic milling method and apparatus |
| CN1663777A (en) * | 2005-03-08 | 2005-09-07 | 华南理工大学 | Drive method and apparatus for screw axial pulse extruder |
| CN105269789A (en) * | 2015-10-27 | 2016-01-27 | 顺德职业技术学院 | Hollow single-screw compound co-extrusion machine |
| CN205705213U (en) * | 2016-04-25 | 2016-11-23 | 顺德职业技术学院 | The hollow single screw extrusion machine of band vibration mandrel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021055543A1 (en) * | 2019-09-20 | 2021-03-25 | University Of Miami | Additive manufacturing of composites with short-fiber reinforcement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10315347B2 (en) | Injection molding apparatus with spherical rotor | |
| US20160001474A1 (en) | Method for manufacturing foamable injection molding and injection device therefor | |
| CN205705215U (en) | The outer screw channel formula screw extrusion apparatus of band vibration mandrel | |
| CN105904699A (en) | Outer thread groove type screw extruding device with vibration spindle | |
| CN108016018A (en) | A kind of pulsation plasticizing screw rod based on volume deformation | |
| CN205705213U (en) | The hollow single screw extrusion machine of band vibration mandrel | |
| CN201728842U (en) | Miniature double-cone opposite rotation double-screw extrusion tester | |
| CN105751475A (en) | Hollow single screw extruder with vibrating mandrel | |
| CN205705154U (en) | Vibration column plug Coinjection molding apparatus | |
| CN205705155U (en) | The inner screw channel screw of injection forming machine of vibration plunger | |
| CN205705148U (en) | Spiral shell dish and plunger combination formula Coinjection molding apparatus | |
| CN105751455B (en) | Spiral shell disk and plunger combination formula Coinjection molding apparatus | |
| CN101269540A (en) | Extrusion frame head for core rod rotating long glass fiber-reinforced plastics tube | |
| CN205800143U (en) | A kind of short screw extruder | |
| CN103182775B (en) | The volume displaced tensile deformation plasticizing processing method of a kind of twin-screw and equipment | |
| CN105751461B (en) | Vibrate the inner screw channel screw of injection forming machine of plunger | |
| CN205705153U (en) | The Coinjection molding apparatus of spherical rotor | |
| CN105751460B (en) | Vibrate plunger type Coinjection molding apparatus | |
| CN205705214U (en) | The hollow single screw extrusion machine of inner screw channel formula | |
| CN103934991A (en) | Glue injection device for injection molding machine | |
| CN205871132U (en) | Short screw extruder of opposition spiral | |
| CN105936119A (en) | Short screw extruder | |
| CN205705151U (en) | Inner screw channel screw rod and plunger coaxial-type injection (mo(u)lding) machine | |
| CN207140273U (en) | A kind of jetting-moulding screw of plastic jetting-moulding machine | |
| CN106042324B (en) | A kind of opposed spiral short screw extruder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |
|
| RJ01 | Rejection of invention patent application after publication |