CN105904699A - Outer thread groove type screw extruding device with vibration spindle - Google Patents
Outer thread groove type screw extruding device with vibration spindle Download PDFInfo
- Publication number
- CN105904699A CN105904699A CN201610263516.4A CN201610263516A CN105904699A CN 105904699 A CN105904699 A CN 105904699A CN 201610263516 A CN201610263516 A CN 201610263516A CN 105904699 A CN105904699 A CN 105904699A
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- CN
- China
- Prior art keywords
- vibration
- mandrel
- screw
- spindle
- hollow 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.)
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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 an outer thread groove type screw extruding device with a vibration spindle. The outer thread groove type screw extruding device with the vibration spindle comprises an extruding machine head, a charging barrel, a hollow screw, a hopper, a seat, a radial thrust bearing set, a transmission mechanism, a motor, a fixed seat frame, a gear, an electric heating coil and the spindle, wherein the hollow screw is located in the charging barrel and can rotate, the outer surface of the hollow screw is provided with an outer thread groove which runs through the overall length and is continuous, the spindle is located in a center hole of the hollow screw, the hollow screw can rotate relative to the spindle, and the charging barrel, the hollow screw and the spindle are coaxial. The outer thread groove type screw extruding device with the vibration spindle is characterized by further comprising a vibration device and a motion control instrument, the vibration device is arranged on the spindle, the motion control instrument controls vibration of the vibration device, and the vibration device drives the spindle to conduct axial vibration or circumferential vibration or conduct axial vibration and circumferential vibration simultaneously or the vibration device drives the spindle to conduct circumferential rotation motion. Vibration enhances mass and heat transfer and homogenization of molten materials, mixing shearing of the materials is enhanced, and the quality of manufactured products is good.
Description
Technical field
The present invention relates to the outer screw channel formula screw extrusion apparatus of a kind of band vibration mandrel, be mainly used in plasticizing and the extrusion of various types of materials especially macromolecular material, belong to material plasticating extrusion equipment technology field.
Background technology
Material extrusion molding apparatus is the visual plant of materials processing molding, after solid like material enters machine barrel and 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, its form is by initial solid-state, through all too many levels such as plug flow, melt film, circulation, solid phase are broken, 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, existing single screw extrusion machine, whether common single screw extrusion machine or tapered single screw extruder, all have simple in construction, the feature that easy to operate, production cost is relatively low.
Relying on conventional extruder, 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, improve the course of processing by screw rod applies in plastication and extrusion process vibration, 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 polymer melt is injected vibration cavity, the direction of switching valve by barrel under screw acting, and is applied vibration by piston.Then 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, it is necessary to extruder in traditional sense is applied mode of vibration and is changed, in extrusion, introduce vibration in new ways, strengthen its function further, simplify its 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
It is an object of the invention to overcome the deficiencies in the prior art and a kind of simple in construction, reliable operation are provided, manufacture, use and maintenance cost is low, the outer screw channel formula screw extrusion apparatus of the band vibration mandrel that the quality of item of production is good.
In order to achieve the above object, the present invention is realized in, it is the outer screw channel formula screw extrusion apparatus of a kind of band vibration mandrel, including extruder head, barrel, hollow screw, hopper, stand, radial thrust bearing group, drive mechanism, motor, fixing mounting, gear, electric heating coil and mandrel；Wherein said hollow screw is positioned at barrel rotatable,, the outer surface in hollow screw is provided with through total length continuous print external screw thread groove, and described mandrel is positioned at the centre bore of hollow screw, hollow screw is rotatable relative to mandrel, and described barrel, hollow screw and mandrel are the most coaxial；Characterized by further comprising vibrating device and motor control instrument, described vibrating device is located between fixing mounting and mandrel, described motor control instrument control vibrating device vibrates, vibrating device band moving mandrel makees following motion: axial vibration, circular vibration, carry out axial vibration and circular vibration simultaneously, or vibrating device band moving mandrel makees circumference rotary motion.
In the technical program, the profile of described hollow screw is cylindrical or conical or other shapes.
In the technical program, described vibrating device is ultrasonic type vibrating device or mechanical type vibrating device or electricity
Magnetic-type vibrating device or hydraulic type vibratory device or pneumatic type vibrating device or combinations thereof.
The present invention compared with prior art, has the advantage that
1, after material completes the plasticizing entrance extrusion stage, the vibration of mandrel is conducive to mass-and heat-transfer and the homogenizing of melting material, the effective viscoelasticity and the viscosity that make plastic melt reduce, mobility increases, the mixing of material is sheared and is strengthened, the performance of moulded products can be obviously improved, by extrusion moulding product after applying vibration is carried out mechanical property, DSC and density measurement, find that stretching and the impact strength of goods improve, density becomes big, the degree of crystallinity of sample improves, and goods interior quality and presentation quality are all greatly improved and improve.
2, compared to the mode of vibration of other versions in plastics forming, " mandrel vibration " mode has the advantage of simple in construction and reliable operation, manufactures, uses and maintenance cost is lower.
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 one hollow screw；
Fig. 3 is the structural representation of the embodiment of the present invention two；
Fig. 4 is the structural representation of the embodiment of the present invention two hollow screw.
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 " and " second " are only used for describing purpose, and it is not intended that indicate or hint relative importance.
Embodiment one
As shown in Figures 1 and 2, it is the outer screw channel formula screw extrusion apparatus of a kind of band vibration mandrel, including extruder head 1, barrel 2, the hollow screw 3 of band external screw thread groove, hopper 4, stand 5, radial thrust bearing group 6, drive mechanism 7, motor 8, vibrating device 9, fixing mounting 10, motor control instrument 11, gear 12, electric heating coil 13 and mandrel 14；Wherein
Described extruder head 1 installs the right-hand member i.e. discharging opening of barrel 2 of barrel 2, and the discharging opening of barrel 2 connects with extruder head 1；Described hopper 4 is arranged on the left end i.e. charging aperture of barrel 2 of barrel 2, and the charging aperture of barrel 2 connects with hopper 4；Described electric heating coil 13 is set on whole barrel 2；
It is interior and rotatable that described hollow screw 3 is located at barrel 2, outer surface in hollow screw 3 is provided with through total length continuous print external screw thread groove 301, the left part of hollow screw 3 is stretched out outside barrel 2, what the left end of hollow screw 3 rotated is arranged on stand 5, the left part of the external screw thread groove 301 of the outer surface of hollow screw 3 connects with the charging aperture of hopper 4, and the right part of the external screw thread groove 301 of the outer surface of hollow screw 3 connects with the discharging opening of barrel 2；
Described radial thrust bearing group 6 and gear 12 are set in the left end of hollow screw 3, and gear 12 drives hollow screw 3 to rotate, and motor 8 drives drive mechanism 7, drive mechanism 7 driven gear 12, is provided with centre bore in hollow screw 3；In the present embodiment, the profile of barrel 2 and hollow screw 3 is cylinder；
Described mandrel 14 is positioned at the centre bore of hollow screw 3, the relative mandrel 14 of hollow screw 3 is rotatable, the left end of mandrel 14 stretches out outside the centre bore of hollow screw 3, and vibrating device 9 is arranged between the left part of mandrel 14 and fixing mounting 10, and described barrel 2, hollow screw 3 and mandrel 14 are the most coaxial；
Vibrating device 9 band moving mandrel 14 is vibrated, and motor control instrument 11 controls the vibration of vibrating device 9；Vibrating device 9 can band moving mandrel 14 move as follows: axial vibration, circular vibration, carry out axial vibration and circular vibration simultaneously, or vibrating device 9 band moving mandrel 14 makees circumference rotary motion；Described vibrating device 9 is ultrasonic type vibrating device or mechanical type vibrating device or electromagnetic vibrating device or hydraulic type vibratory device or pneumatic type vibrating device, it is also possible to be with upper type between combination.
During work, motor 8 drives hollow screw 3 to rotate by drive mechanism 7 and gear 12, material enters the external screw thread groove of hollow screw 3 from hopper 4 by machine barrel 1, under the promotion of spiral shell rib, move to extruder head 1 along external screw thread groove, simultaneously, vibrating device 9 band moving mandrel 14 carries out vibrating or rotary motion, vibration is put on the fused materials of barrel 2 front end, is executed melting material of shaking finally by extruder head 1, then cooling and shaping.
Embodiment two
As shown in Figures 3 and 4, it is the outer screw channel formula screw extrusion apparatus of a kind of band vibration mandrel, and its structure is substantially identical with embodiment one, except that barrel 2 and hollow screw 3 profile are cone in the present embodiment；Its operation principle is similar with embodiment one, no longer repeats at this.
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 (3)
1. an outer screw channel formula screw extrusion apparatus for band vibration mandrel, including extruder head (1), barrel (2), hollow screw (3), hopper (4), stand (5), radial thrust bearing group (6), drive mechanism (7), motor (8), fixing mounting (10), gear (12), electric heating coil (13) and mandrel (14)；Wherein said hollow screw (3) is positioned at barrel (2) rotatable, outer surface in hollow screw (3) is provided with through total length continuous print external screw thread groove (301), described mandrel (14) is positioned at the centre bore of hollow screw (3), hollow screw (3) mandrel (14) relatively is rotatable, and described barrel (2), hollow screw (3) and mandrel (14) are the most coaxial；Characterized by further comprising vibrating device (9) and motor control instrument (11), described vibrating device (9) is located between fixing mounting (10) and mandrel (14), described motor control instrument (11) controls vibrating device (9) vibration, vibrating device (9) band moving mandrel (14) makees axial vibration or circular vibration or carries out axial vibration and circular vibration simultaneously, or vibrating device (9) band moving mandrel (14) makees circumference rotary motion.
The outer screw channel formula screw extrusion apparatus of band the most according to claim 1 vibration mandrel, it is characterised in that the profile of described hollow screw (3) is cylindrical or conical or other shapes.
The outer screw channel formula screw extrusion apparatus of band the most according to claim 1 vibration mandrel, it is characterised in that described vibrating device (9) is ultrasonic type vibrating device or mechanical type vibrating device or electromagnetic vibrating device or hydraulic type vibratory device or pneumatic type vibrating device or combinations thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263516.4A CN105904699A (en) | 2016-04-25 | 2016-04-25 | Outer thread groove type screw extruding device with vibration spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263516.4A CN105904699A (en) | 2016-04-25 | 2016-04-25 | Outer thread groove type screw extruding device with vibration spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105904699A true CN105904699A (en) | 2016-08-31 |
Family
ID=56752025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610263516.4A Pending CN105904699A (en) | 2016-04-25 | 2016-04-25 | Outer thread groove type screw extruding device with vibration spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105904699A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863746A (en) * | 2017-02-23 | 2017-06-20 | 太原理工大学 | A kind of screw rod and material cylinder structure of Strong shear extruder |
| CN106976218A (en) * | 2017-04-18 | 2017-07-25 | 华南理工大学 | The minor caliber pipe extruding forming method and device of a kind of weldless trace |
| CN107143630A (en) * | 2017-07-25 | 2017-09-08 | 顺德职业技术学院 | Novel ultrasonic screw rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08294948A (en) * | 1995-02-28 | 1996-11-12 | Tsuoisu Kk | Plasticizing injection mechanism of injection molding machine |
| JPH11254494A (en) * | 1998-01-20 | 1999-09-21 | Mannesmann Ag | Injection molding machine and method for operating it |
| 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 |
| CN205705215U (en) * | 2016-04-25 | 2016-11-23 | 顺德职业技术学院 | The outer screw channel formula screw extrusion apparatus of band vibration mandrel |
-
2016
- 2016-04-25 CN CN201610263516.4A patent/CN105904699A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08294948A (en) * | 1995-02-28 | 1996-11-12 | Tsuoisu Kk | Plasticizing injection mechanism of injection molding machine |
| JPH11254494A (en) * | 1998-01-20 | 1999-09-21 | Mannesmann Ag | Injection molding machine and method for operating it |
| 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 |
| CN205705215U (en) * | 2016-04-25 | 2016-11-23 | 顺德职业技术学院 | The outer screw channel formula screw extrusion apparatus of band vibration mandrel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863746A (en) * | 2017-02-23 | 2017-06-20 | 太原理工大学 | A kind of screw rod and material cylinder structure of Strong shear extruder |
| CN106863746B (en) * | 2017-02-23 | 2019-06-11 | 太原理工大学 | A kind of screw rod and material cylinder structure of Strong shear extruder |
| CN106976218A (en) * | 2017-04-18 | 2017-07-25 | 华南理工大学 | The minor caliber pipe extruding forming method and device of a kind of weldless trace |
| CN107143630A (en) * | 2017-07-25 | 2017-09-08 | 顺德职业技术学院 | Novel ultrasonic screw rod |
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Application publication date: 20160831 |
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