CN203063093U - Polymer wedge-type grinding disc plastifying and mixing device - Google Patents
Polymer wedge-type grinding disc plastifying and mixing device Download PDFInfo
- Publication number
- CN203063093U CN203063093U CN2012205453004U CN201220545300U CN203063093U CN 203063093 U CN203063093 U CN 203063093U CN 2012205453004 U CN2012205453004 U CN 2012205453004U CN 201220545300 U CN201220545300 U CN 201220545300U CN 203063093 U CN203063093 U CN 203063093U
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- CN
- China
- Prior art keywords
- wedge
- type
- polymer
- price fixing
- discs
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- 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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- 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
- B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- 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
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
Abstract
The utility model relates to a polymer wedge-type grinding disc plastifying and mixing device which mainly comprises a pair of or more pairs of wedge-type movable discs and wedge-type fixed discs which are arranged in a feed cylinder, wherein the wedge-type movable discs and a screw rod are connected in series to a same mandril; the wedge-type fixed discs are fixedly connected with the feed cylinder; the grooves of the wedge-type movable discs are in wedge-shaped surface structures and are alternately uniformly distributed with the lug bosses of the wedge-type movable discs, and a polymer melt can generate a stretching flow field when passing through the gap of a grinding disc; the grooves of the wedge-type fixed discs are in plane structures and are alternately uniformly distributed with the lug bosses of the wedge-type fixed discs; the inner surfaces of the wedge-type fixed discs are in uniformly distributed wedge-shaped groove structures, and the polymer melt is subjected to the two-way stretching action of circumferential stretching and axial stretching when passing through the wedge-shaped grooves positioned on the inner surfaces of the wedge-type fixed discs; and the axial gaps of the wedge-type movable discs and the wedge-type fixed discs and the cross-sectional shapes of the wedge-shaped grooves of the wedge-type fixed discs can all be adjusted, so that the processing adaptability of different materials is enhanced. The polymer wedge-type grinding disc plastifying and mixing device disclosed by the utility model can be used for efficiently crushing, plastifying, mixing and dispersing the polymer particles and preparing the polymers which are difficult to process by a general plastifying and mixing device and compound systems thereof.
Description
Technical field
The utility model relates to a kind of Polymer Processing device, especially polymer and compound system thereof is plastified and the processing unit (plant) that mixes, and specifically refers to a kind of polymer wedge-type mill plasticizing mixing arrangement.
Background technology
In polymer processing, for physical and mechanical property, chemical stability and the processing characteristics that improves material, often use some additives such as reinforcing agent, plasticizer, antioxidant etc., obviously various performances and the apparent mass of polymer product depend on uniformity of mixture to a great extent.The screw Polymer Processing equipment of using mainly relies on the shearing flow field and realizes that dispersion mixes, and is characterized in making under the high-rate of shear condition melt by the shearing force district at present.And be the viscous heating that the region of high stress that improves the shear strength setting has increased melt greatly, not only reduced energy utilization ratio, matrix polymer is degraded, thus the performance of reduction polymer and compound system thereof.The operation principle of single screw extrusion machine has limited the raising of mixing quality, double screw extruder has special mixing mechanism, can improve the performance of mixture, but critical piece processed complexs such as its screw rod, machine barrel, transmission, screw mandrel can not bear excessive moment of torsion, and is therefore comparatively difficult to height filling or the mixing processing of full-bodied material.
Series connection mill extruder is on the basis of single screw extrusion machine, moves to the disk end face by the partial function with screw thread on the screw rod face of cylinder, reaches the purpose that improves mixing quality.Because the end face mill adopts the shearing flow field to realize disperseing to mix, the melt high frequency is by the shearing force district, under very high shear rate, realize disperseing, therefore high shear strength increases the viscous heating of polymer greatly, exist capacity usage ratio low equally, cause matrix polymer to be degraded easily, thus the performance of impact polymer.With respect to shearing the flow field, the effect of stretching flow field can make polymer have better dispersion effect and higher dispersion efficiency, and gives melt good application viscosity, thereby is more suitable for disperseing in the mixing of polymer composite body system.At present, polyblend equipment mainly is to improve dispersion mixing by improving shear rate, be difficult to obtain higher rate of extension, the polymer plasticizing mixing arrangement in the flow field that therefore needs effectively to realize to stretch further improves Polymer Processing equipment performance and plasticizing mixing quality.
The utility model content
The purpose of this utility model is to provide a kind of polymer wedge-type mill to plastify mixing arrangement, can not realize elongational flow and cause polymer particle to be difficult to the problem of more effectively fragmentation, plasticizing, mixing and dispersion to solve the plane configuration mill.
Polymer wedge-type mill plasticizing mixing arrangement of the present utility model, the wedge-type mill of one or more pairs of wedge-type Moving plates 2 and wedge-type price fixing 3 formations is placed barrel 1, wedge-type Moving plate 2 is series at same mandrel with screw rod 4, wedge-type price fixing 3 connects firmly with barrel 1, and material is subjected to stretching action in the mill runner thereby make.
The groove of above-mentioned wedge-type Moving plate 2 is the lozenges structure, and alternate with the Moving plate boss uniform, and Moving plate groove and price fixing boss and groove all can form astringent runner like this, when polymer melt passes through abrasive disk space, can produce the stretching flow field; The groove of wedge-type price fixing 3 is planar structure, and alternate with the price fixing boss uniform, and the inner surface of wedge-type price fixing 3 is uniform wedge-shaped groove structure, when polymer melt passes through the wedge-shaped slot of price fixing inner surface, stands the biaxial tension effect of circumferential tension and axial tension; Wedge-type Moving plate 2 can be adjusted with the end play of wedge-type price fixing 3, and the cross sectional shape of price fixing wedge-shaped slot can be adjusted, and improves the adaptability of different material processing.
The realization of the utility model purpose is that Moving plate is designed to the wedge-type structure, its Moving plate groove is lozenges, Moving plate groove and price fixing boss and groove all can form astringent runner like this, when polymer melt passes through abrasive disk space, channel size reduces, melt flow rate (MFR) is accelerated, its velocity gradient direction is consistent with flow direction, can produce the stretching flow field, thereby change the pattern of flow of melt in the mill runner, when Moving plate boss and price fixing boss mutually near the time melt be subjected to strong shear action, when Moving plate groove and price fixing groove or Moving plate groove and price fixing boss mutual when close melt be subjected to strong stretching and compression; The price fixing end face is made of boss and groove, the price fixing inner surface has uniform wedge-shaped slot, when polymer melt passes through the wedge-shaped slot of price fixing inner surface, gap smaller along with groove, melt will be accelerated during by wedge-shaped slot, thereby stand the biaxial tension effect of circumferential tension and axial tension, produce strong elongational flow, the mixing efficiency of polymer melt is improved, can be distributed fully to mix and disperse and mix; Can effectively change draw ratio by the end play of adjusting Moving plate and price fixing, the dispersion that is fit to different material mixes needs; Can effectively change rate of extension by the cross sectional shape of adjusting the price fixing wedge-shaped slot, realize that the controlled polymer plasticizing of draft flowing deformation mixes.
Compared with prior art, the utlity model has following advantage:
(1) the wedge-type mill based on the design of elongational flow principle plastifies mixing arrangement, material is easy to generate elongational flow in the astringent runner that mill forms, can produce stronger shearing flow field and stretching flow field, shear rate and the rate of extension of melt in the runner have been improved, can be used in the polyalcohol contour machining equipment, as single screw extrusion machine or series connection mill extruder etc.
(2) the wedge-type mill has changed mill plasticizing mixing section melt flow field type, strengthened the shearing flow field, increased the effect in stretching flow field, make polymer particle that fragmentation, plasticizing, mixing and dispersion take place efficiently, particle diameter diminishes, epigranular, so wedge-type mill configuration can provide and plastifies mixed effect preferably.
(3) material is easy to generate elongational flow in the wedge-type mill runner, has stronger peptizaiton with respect to shearing the flow field, stretching action and shear action that melt is subjected to are big, the instantaneous stretching mixing efficiency of melt and average stretching mixing efficiency height in the mill runner, can the plasticizing mixed process of different material be control effectively, produce the unmanageable polymer of general plasticizing mixing arrangement and compound system thereof.
Description of drawings
Below mark among the expressed content of each accompanying drawing of this specification and the figure is briefly explained:
Fig. 1 is the structural representation of polymer wedge-type mill plasticizing mixing arrangement;
Fig. 2 is the end face configuration picture of wedge-type Moving plate;
Fig. 3 is the end face configuration picture of wedge-type price fixing;
Fig. 4 is the flow regime figure of material in the wedge-type mill;
Fig. 5 is the structural representation of wedge-type price fixing;
Be labeled as among the figure: 1, barrel; 2, wedge-type Moving plate; 3, wedge-type price fixing; 4, screw rod; 5, driver element.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, polymer wedge-type mill plasticizing mixing arrangement mainly is made up of the one or more pairs of wedge-type Moving plates 2 and the wedge-type price fixing 3 that place barrel 1, and wedge-type Moving plate 2 is series at same mandrel with screw rod 4, and wedge-type price fixing 3 connects firmly with barrel 1.The end face configuration of wedge-type Moving plate 2 as shown in Figure 2, the Moving plate groove design is lozenges, the Moving plate boss is kept certain height, and alternate with the Moving plate groove uniform.The end face configuration of wedge-type price fixing 3 as shown in Figure 3, the price fixing groove design is the plane, the price fixing boss is kept certain height, and alternate with the price fixing groove uniform.Moving plate groove and price fixing boss and groove all can form astringent runner like this, when driver element 5 drive screws 4 rotate, because the channel size of material process reduces, melt flow is accelerated, its velocity gradient direction is consistent with flow direction, thereby produce the stretching flow field, material produces stretcher strain and does not rotate in elongational flow.Owing to be subjected to from shearing, stretching, friction and compression strong between wedge-type Moving plate 2 and the wedge-type price fixing 3, thereby make material fragmentation, plasticizing take place, mix and disperse.
In the wedge-type mill flow regime of material as shown in Figure 4, when Moving plate boss and price fixing boss mutually near the time, melt is subjected to strong shear action; When Moving plate groove and price fixing groove or Moving plate groove and price fixing boss mutually near the time, melt is subjected to strong stretching and compression, and the relative position variation of the stretching action follower disk that is subjected to of melt and price fixing and changing.
The structure of wedge-type price fixing 3 as shown in Figure 5, the price fixing end face is made of boss and groove, the price fixing inner surface has uniform wedge-shaped slot.When polymer melt passes through the wedge-shaped slot of price fixing inner surface, gap smaller along with groove, melt will be accelerated during by wedge-shaped slot, thereby stand the biaxial tension effect of circumferential tension and axial tension, produce strong elongational flow, the mixing efficiency of polymer melt is improved, can be distributed fully to mix and disperse and mix.
In sum, the utility model adopts wedge-type mill configuration can make the interior material of runner more be easy to generate elongational flow, melt plasticizing mixed effect is more abundant in the runner, can effectively change draw ratio by the end play of adjusting moving price fixing, can effectively change rate of extension by the cross sectional shape of adjusting Moving plate lozenges and price fixing wedge-shaped slot, can effectively prevent the too high depolymerization that causes of temperature by the number of adjusting Moving plate and price fixing, thereby realize that the controlled polymer plasticizing of draft flowing deformation mixes, and improves the adaptability of different material processing.
Claims (4)
1. a polymer wedge-type mill plastifies mixing arrangement, it is characterized in that: the wedge-type mill that one or more pairs of wedge-type Moving plates (2) and wedge-type price fixing (3) constitute places barrel (1), wedge-type Moving plate (2) is series at same mandrel with screw rod (4), wedge-type price fixing (3) connects firmly with barrel (1), and material is subjected to stretching action in the mill runner thereby make.
2. polymer wedge-type mill according to claim 1 plastifies mixing arrangement, it is characterized in that: the groove of wedge-type Moving plate (2) is the lozenges structure, and it is alternate with the Moving plate boss uniform, Moving plate groove and price fixing boss and groove all can form astringent runner like this, when polymer melt passes through abrasive disk space, can produce the stretching flow field.
3. polymer wedge-type mill according to claim 1 plastifies mixing arrangement, it is characterized in that: the groove of wedge-type price fixing (3) is planar structure, and it is alternate with the price fixing boss uniform, the inner surface of wedge-type price fixing (3) is uniform wedge-shaped groove structure, when polymer melt passes through the wedge-shaped slot of price fixing inner surface, stand the biaxial tension effect of circumferential tension and axial tension.
4. polymer wedge-type mill according to claim 1 plastifies mixing arrangement, it is characterized in that: wedge-type Moving plate (2) can be adjusted with the end play of wedge-type price fixing (3), the cross sectional shape of price fixing wedge-shaped slot can be adjusted, and improves the adaptability of different material processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205453004U CN203063093U (en) | 2012-10-19 | 2012-10-19 | Polymer wedge-type grinding disc plastifying and mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205453004U CN203063093U (en) | 2012-10-19 | 2012-10-19 | Polymer wedge-type grinding disc plastifying and mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203063093U true CN203063093U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205453004U Expired - Fee Related CN203063093U (en) | 2012-10-19 | 2012-10-19 | Polymer wedge-type grinding disc plastifying and mixing device |
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|---|---|
| CN (1) | CN203063093U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692624A (en) * | 2013-12-30 | 2014-04-02 | 广东联塑机器制造有限公司 | Injection moulding machine |
| CN104725716A (en) * | 2013-12-20 | 2015-06-24 | 财团法人工业技术研究院 | Composite material and method for producing same |
| CN106346734A (en) * | 2016-08-30 | 2017-01-25 | 中国化学工业桂林工程有限公司 | Extruder and extrusion process and system thereof |
| CN108016017A (en) * | 2017-12-01 | 2018-05-11 | 北京科技大学 | Static stretch mixer and its method for being used to prepare polymer nanocomposites |
-
2012
- 2012-10-19 CN CN2012205453004U patent/CN203063093U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725716A (en) * | 2013-12-20 | 2015-06-24 | 财团法人工业技术研究院 | Composite material and method for producing same |
| CN103692624A (en) * | 2013-12-30 | 2014-04-02 | 广东联塑机器制造有限公司 | Injection moulding machine |
| CN103692624B (en) * | 2013-12-30 | 2016-05-18 | 广东联塑机器制造有限公司 | A kind of injection machine |
| CN106346734A (en) * | 2016-08-30 | 2017-01-25 | 中国化学工业桂林工程有限公司 | Extruder and extrusion process and system thereof |
| CN106346734B (en) * | 2016-08-30 | 2019-07-19 | 中国化学工业桂林工程有限公司 | A kind of extruder and its extrusion process and system |
| CN108016017A (en) * | 2017-12-01 | 2018-05-11 | 北京科技大学 | Static stretch mixer and its method for being used to prepare polymer nanocomposites |
| CN108016017B (en) * | 2017-12-01 | 2020-01-17 | 北京科技大学 | Static draw mixer and method for preparing polymer nanocomposite using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20131019 |