CN205614912U - Device of low warm working macromolecular material of high frequency electric field and vibrational force field synergy - Google Patents
Device of low warm working macromolecular material of high frequency electric field and vibrational force field synergy Download PDFInfo
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- CN205614912U CN205614912U CN201620412927.0U CN201620412927U CN205614912U CN 205614912 U CN205614912 U CN 205614912U CN 201620412927 U CN201620412927 U CN 201620412927U CN 205614912 U CN205614912 U CN 205614912U
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Abstract
The utility model discloses a device of low warm working macromolecular material of high frequency electric field and vibrational force field synergy. The device's top board, insulation board and top crown are connected gradually under to by last, and splenium branch in the constitution is installed in the guide pillar upper end, holding down plate, insulation board and bottom crown connect gradually by on going, constitute to push down the part, install in the guide pillar lower extreme, top crown and bottom crown set up relatively, and forming die places in the bottom crown upper surface or will treat the welded polymer or high score subbase composite board places the bottom crown upper surface in, vibration excitation device and hydraulic cylinder, top board and holding down plate internally mounted heating pipe are down installed in proper order to the holding down plate, the positive negative pole of high frequency generator links to each other with top crown and bottom crown respectively via the copper strips, and automatically controlled cabinet is connected with hydraulic cylinder, heating pipe and vibration excitation device respectively. The utility model discloses can be used to the plastify processing of macromolecular material and the melting welding of macromolecular material, have the heating evenly, characteristics such as watery fusion, saving energy consumption.
Description
Technical field
The utility model relates to high polymer material plasticizing processing technique field, particularly relates to be applied to macromolecule and polymer-based
The device of the processing of composite low-temperature plasticizing.
Background technology
The processing of high molecular material method of current main-stream mainly has extrusion, injection, mold pressing etc., and macromolecule material is processed at these
Equipment stands external high temperature heating and mechanical friction heat and reaches viscous state (temperature is higher than material melting point), and then plastify, become
Type, solidification.In process, energy needed for material plasticizing is mainly derived from external heat transfer and friction mechanism can convert,
Heating heat transfer efficiency is low, causes the thermomechanical course needed for material plasticizing process long, and energy consumption is higher；Simultaneously because external heat
Easily cause material to be heated inequality, often lead to macromolecule material local or the too high degraded of temperature or temperature mistake in plasticizing process
Low plasticizing not exclusively, greatly have impact on the mechanical performance of macromolecule material product.
With current novel high polymer material such as string reinforcing material, degradable biomass material, performance function section bar
Material etc. emerges in an endless stream, simultaneously for dimensional accuracy, mixing every finger such as dispersing characteristic, mechanical property of macromolecule material product
Target requires also more and more higher, therefore it is also proposed higher requirement for the plasticizing process equipment of macromolecular material: to the greatest extent may be used
The low processing temperature of energy and processing course short as far as possible realize molten homogeneous, the plasticizing of material, is molded.
For the problem existing for current high polymer material plasticizing transport process, exploitation one is capable of inside macromolecular material
The efficient fusion plastification mode of heating so that macromolecule material can be at a temperature of normal temperature or substantially less than material fusing point
Fusion plastification, can be greatly reduced plasticizing power consumption of polymer processing, is prevented effectively from thermal degradation in plasticizing process for the macromolecular material,
Promoting macromolecule material product performance, this is for realizing that the efficient process of macromolecular material is significant.
Utility model content
The purpose of this utility model is for problem and shortage present in above Process Technology of Polymer forming technique and equipment, provides
High-frequency electric field and Vibrational force field are simultaneously introduced in high polymer material plasticizing processing by one, and two kinds of field of forces act synergistically on high score
Sub and polymer-based material, the heating heat transfer efficiency in strengthening plasticizing process, shortens the plasticizing forming cycle, it is achieved low temperature
The device of plasticizing macromolecular material.
The purpose of this utility model is achieved through the following technical solutions:
A kind of device of high-frequency electric field and Vibrational force field cooperating with low-temperature processing macro-molecular material: mainly by radio-frequency generator, copper strips,
Guide pillar, top board, insulation board, top crown, mould, electrical control cubicles, hydraulic jack, exciting device, lower platen, under
Pole plate and heating pipe composition；Described top board, insulation board and top crown are sequentially connected with from top to bottom, laminate section in composition, peace
It is loaded on guide pillar upper end；Lower platen, insulation board and bottom crown are sequentially connected with from down to up, constitute depressed portion, are installed on guide pillar
Lower end；Top crown and bottom crown are oppositely arranged, and mould is positioned over bottom crown upper surface or by macromolecule to be welded
Or polymer-based composite board is placed in bottom crown upper surface；Lower platen down installs exciting device and hydraulic jack, upper pressure successively
Plate and internal installation of lower platen heat pipe；Radio-frequency generator both positive and negative polarity is connected with top crown and bottom crown respectively via copper strips,
Form stable flat high-frequency electric field between top crown and bottom crown；Electrical control cubicles fills with hydraulic jack, heating pipe and exciting respectively
Put connection.
Preferably, described exciting device selects hydraulic oscillating motor, vibration frequency and adjustable amplitude, vibration frequency adjustable extent
For 10-1000Hz, adjustable amplitude scope is 1-10mm.
Preferably, described insulation board is micarex；The material of described mould is pottery or polytetrafluoroethylene (PTFE).
Preferably, single head resistance-type electrical bar selected by described heating pipe.
Preferably, described bottom crown upper surface installs ceramic screw.
Preferably, this device also includes base station, and base station is fixed on below depressed portion；Top crown, insulation board and top board are adopted
Connect and fastening with pottery bolt；Bottom crown, insulation board and lower platen use pottery bolt to connect and fastening.
Macromolecular material that the utility model is placed between top crown and bottom crown or polymer-based composite are by high-frequency electric field
With the synergy of periodic vibration stress field, macromolecular material internal structure issues estranged in periodic vibration stress field effect
Subchain distortion dislocation, distortion of lattice, wafer distortion sliding, intramolecule structural instability is reset, a large amount of interface, interface is occurred
Upper space charge rearrangement and accumulation, cause dielectric material performance to be substantially improved and possess the condition of high-frequency dielectric heating；Association
Making material internal molecule that dielectric polarization frequently to occur with the high-frequency electric field applying, intermolecular mutual collision and friction, from thing
Material is internal produces heat, and high electric field can be converted into material internal heat energy, and then realizes the watery fusion plasticizing of macromolecular material.
Mould is positioned on bottom crown by the utility model, fills full macromolecule material, be then turned on liquid in mold cavity
Compressing cylinder, promotes whole depressed portion to move along guide pillar, matched moulds, preheating (preheating temperature is substantially less than material fusing point)；Open
Exciting device, whole depressed portion starts vibration, applies the extrusion stress of certain frequency and amplitude to material, makes material internal
Structure changes, and dielectric properties significantly promote and possess the condition of high-frequency dielectric heating；Open radio-frequency generator simultaneously,
Apply high-frequency electric field to material, it is achieved the synergy of high-frequency electric field and Vibrational force field simultaneously, make material internal space charge with
The change of electric field frequency and rearrangement and accumulation repeatedly, cause material internal electric field distortion and dielectric loss, the frequent pole of molecule
Change, intermolecular mutual collision and friction, within the extremely short time, produce substantial amounts of heat, and then fusion plastification material；Treat thing
After material fusion plastification, stop high-frequency electric field and Vibration Force Field, fused materials cooling, sizing.Thus, macromolecule and height
Molecule based composite material is under the synergy with the periodic vibration field of force for the high-frequency electric field, it is achieved watery fusion plasticizing, shaping are solid
The process changed.
High-frequency electric field is as follows with Vibrational force field cooperating with low-temperature plasticization mechanism: macromolecular material or polymer-based composite are through one
After fixed extraneous preheating (heating-up temperature between vitrification point and melt temperature, generally 60-120 DEG C), material is executed
Adding Vibrational force field, making material under periodicity extrusion stress effect, strand distortion dislocation, distortion of lattice occur, wafer becomes
The phenomenons such as shape sliding, the rearrangement of internal structure unstability, a large amount of interface occurs, space charge rearrangement and accumulation on interface, material
Material dielectric properties significantly alter and possess the precondition producing thermal response to high-frequency electric field；High-frequency electrical is applied to material simultaneously
, then material internal exist a large amount of interfaces on space charge can rearrangement and the accumulation repeatedly with the change of electric field frequency,
Causing material internal electric field distortion and dielectric loss, molecule frequently polarizes, and intermolecular mutual collision and friction, when extremely short
The substantial amounts of heat of interior generation, it is achieved electric field energy is converted into the process of material internal heat energy, thus rapidly and uniformly melts and mould
Compound material, it is achieved the low-temperature plasticizing of macromolecular material.
The utility model high-frequency electric field is produced by radio-frequency generator, and frequency is 6.78MHz, 13.56MHz and 27.12MHz tri-
Kind.
The utility model macromolecular material is polyolefin, polymethyl methacrylate, PLA or polyvinyl chloride；Described high score
Subbase composite is with carbon fiber, barium titanate, titanium dioxide, glass or calcium carbonate as inserts, with polyolefin, poly-breast
Acid or the filled-type polymer-based composite that polyvinyl chloride is matrix.
Relative to existing Polymer Processing method and apparatus, the utility model has the advantage that
(1) in high-frequency dielectric heating technique, heat is that firing rate is exceedingly fast, and homogeneous heating in material internal instantaneous generation,
Mass-and heat-transfer effect can be greatly enhanced, it is to avoid tradition is based in the processing of high molecular material equipment of external heat and mechanical thermal
Heat transfer is slow, the appearance of the heating bad phenomenon such as inequality, hot-spot coking；
(2) high-frequency electric field and Vibrational force field collaborative plasticizing macromolecular material, firing rate is fast, and fusion cycle is short, can be effective
Ground reduces the degradation of macromolecular material, promotes material property, improves plasticizing efficiency simultaneously；
(3) conventional polymer material processing is required to that material is heated to more than melt temperature and can carry out plasticizing forming,
And work in coordination with in plasticizing process at high-frequency electric field and Vibrational force field, material only need to be heated to a lower temperature (substantially less than material
Fusing point, between glass transition temperature between fusing point, usually 60-120 DEG C), power consumption of polymer processing is substantially reduced, green
Look, environmental protection, energy-conservation；
(4) high-frequency electric field and Vibrational force field work in coordination with plasticizing apparatus simple in construction, easily operate, by changing different moulds
I.e. plastic difformity and the goods of size, and wider to the applicability of material.
Brief description
Fig. 1 is embodiment 1 high-frequency electric field and Vibrational force field cooperating with low-temperature processing macro-molecular material apparatus structure schematic diagram；
Fig. 2 is the depressed portion front view in device described in Fig. 1；
Fig. 3 is the depressed portion left view in device described in Fig. 1；
Fig. 4 is the depressed portion top view in device described in Fig. 1；
Fig. 5 is the mould front view in device described in Fig. 1；
Fig. 6 is the mould left view in device described in Fig. 1；
Fig. 7 is embodiment 2 high-frequency electric field and Vibrational force field cooperating with low-temperature processing macro-molecular material device front view；
Fig. 8 is embodiment 2 high-frequency electric field and Vibrational force field cooperating with low-temperature processing macro-molecular material device left view.
Shown in figure: radio-frequency generator the 1st, copper strips the 2nd, guide pillar the 3rd, top board the 4th, insulation board the 5th, top crown the 6th, mould
7th, ceramic screw the 8th, controller the 9th, base station the 10th, hydraulic jack the 11st, exciting device the 12nd, lower platen the 13rd, bottom crown is the 14th,
The 19th, the 15th, pottery bolt heat pipe the 16th, micro thermocouple the 17th, mold cavity the 18th, macromolecule or polymer-based composite board
Adhesive layer 20.
Detailed description of the invention:
With embodiment, the utility model is further detailed below in conjunction with the accompanying drawings, but the model that the utility model is claimed
Enclose the scope being not limited to embodiment statement.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, high-frequency electric field and Vibrational force field cooperating with low-temperature processing macro-molecular material device,
Main by copper strips the 2nd, guide pillar the 3rd, top board the 4th, insulation board the 5th, top crown the 6th, mould the 7th, ceramic screw the 8th, electrical control cubicles
9th, base station the 10th, hydraulic jack the 11st, exciting device the 12nd, lower platen the 13rd, bottom crown the 14th, pottery bolt 15 and heating pipe 16
Deng composition.Top board the 4th, insulation board 5 and top crown 6 are sequentially connected with from top to bottom, and laminate section in composition is installed on guide pillar 3
Upper end；Lower platen the 13rd, insulation board 5 and bottom crown 14 are sequentially connected with from down to up, constitute depressed portion, are installed on guide pillar 3
Lower end, top crown 6 and bottom crown 14 are oppositely arranged, and ceramic screw 8 is installed on bottom crown 14 surface in case upper bottom crown straight
Contact, mould 7 or macromolecule to be welded or polymer-based composite board are positioned over bottom crown 14 upper surface；Under press
Plate 13 down installs exciting device 12 and hydraulic jack 11 successively, makes depressed portion can vibrate with exciting device 12, provides
Amplitude and the Vibrational force field of frequency-adjustable, hydraulic jack 11 can promote whole depressed portion and exciting device 12 along guide pillar 3
Lower movement；Base station 10 is fixed on below depressed portion, is used for supporting laminate section, guide pillar and depressed portion.Use pottery spiral shell
Pole plate, insulation board and pressing plate are attached and fasten by bolt 15, make pole plate completely insulated with other parts；Top board 4 He
Lower platen 13 is internal installs heating pipe 16, can carry out accurate external heat to upper lower platen and upper bottom crown.High frequency occurs
Device 1 both positive and negative polarity is connected with top crown 6 and bottom crown 14 respectively via copper strips 2, is formed between top crown 6 and bottom crown 14
Stable flat high-frequency electric field.
The material of top crown 6 and bottom crown 14 is preferably conducted electricity, the brass of excellent thermal conductivity, top crown 6 and bottom crown 14
Connect both positive and negative polarity, top crown 6 lower surface and the opposing parallel arrangement of bottom crown 14 upper surface, two tables of radio-frequency generator 1 respectively
Form stable high-frequency electric field between face.
The preferred model of radio-frequency generator 1 is GJ5-6B-I-JY, and input power is 10KW, and power output is 5KW, electric field
Frequency is 6.78MHz.
Insulation board 5 is preferably micarex, is placed between pressing plate and pole plate, it is achieved upper exhausted between bottom crown and other parts
The heat of top board 4 and lower platen 13 can be delivered to top crown 6 and bottom crown 14, it is achieved top crown 6 by edge simultaneously
Heating with bottom crown 14.
The material of mould 7 is preferably nonconducting heat proof materials such as pottery or polytetrafluoroethylene (PTFE), it is to avoid upper/lower electrode is squeezing
The generation of contact and dielectric breakdown during pressure.
The 11st, electrical control cubicles 9 heats pipe 16 and exciting device 12 is connected with hydraulic jack respectively, is used for: 1) control hydraulic oil
Cylinder 11 moves up and down, thus realizes top crown 6 and the change of bottom crown 14 spacing, and regulates top crown 6 and bottom crown 14
Squeeze pressure；2) control heating pipe 16 accurately heats；3) control exciting device 12, regulate vibration frequency and shake
Width.
The preferred hydraulic oscillating motor of exciting device 12, vibration frequency and amplitude are all adjustable, and vibration frequency adjustable extent is
10-1000Hz, adjustable amplitude scope is 1-10mm.Exciting device 12 is that depressed portion provides periodic vibration force, to putting
The material being placed between bottom crown carries out periodically extruding, and can regulate its vibration frequency and amplitude by electrical control cubicles 9.
The heating preferred single head resistance-type electrical bar of pipe 16, operating voltage is 220V, and power is 500W, is installed in parallel in up and down
Inside pressing plate, accurate temperature controlling is carried out to upper lower platen and pole plate.
The K-type thermocouple of the preferred a diameter of 0.1mm of micro thermocouple 17, external temperature shows table, in mold cavity 18
Temperature of charge is measured in real time.
Embodiment 1
High-frequency electric field is with Vibrational force field cooperating with low-temperature processing macro-molecular material device as Figure 1-Figure 4.The knot of mould 7
As shown in Figure 5, Figure 6, the center of mould 7 is provided with mold cavity 18 to structure, mold cavity 18 is filled full macromolecule or
Polymer-based composite, micro thermocouple 17 is arranged in the mould 7 of mold cavity 18 periphery, micro thermocouple
17 external temperature display tables, it is achieved the real-time measurement of temperature of charge in mold cavity 18.Mould 7 is positioned over lower pole
On plate 14, then whole depressed portion is moved along guide pillar 3, carries out matched moulds, preheating；Temperature of charge reaches design temperature and (is situated between
In 60-120 DEG C) after, open exciting device 12, whole depressed portion starts vibration, applies certain frequency and amplitude to material
Squeezing of (vibration frequency and adjustable amplitude, vibration frequency adjustable extent is 10-1000Hz, and adjustable amplitude scope is 1-10mm)
Compression, simultaneously open radio-frequency generator 1, material is applied simultaneously high-frequency electric field (high-frequency electric field is produced by radio-frequency generator,
Frequency is one of 6.78MHz, 13.56MHz and 27.12MHz tri-kinds), it is achieved the collaborative work of high-frequency electric field and Vibrational force field
With；This synergy is embodied in the internal structure of the periodicity extrusion stress destruction material internal that Vibrational force field provides, in material
Portion's structural instability is reset, and dielectric properties significantly promote and possess the condition producing thermal response to high-frequency electric field, apply in synchronization
High-frequency electric field effect under, material internal molecule frequently polarizes, collides and rubs, it is achieved high electric field can be converted in material
Portion's heat energy and heat and the process of fusion plastification material.Temperature of charge in mold cavity is monitored by micro thermocouple 17 in real time
And feedback, it is possible to provide the real time temperature delta data of material；After material melts plasticizing, stop high-frequency electric field and Vibrational force field
Effect, fused materials cooling, sizing.Thus, macromolecule or polymer-based composite are at high-frequency electric field and Vibrational force field
Under synergy, it is achieved that watery fusion plasticizing, the low-temperature plasticizing processing high score MATERIALS METHODS of forming and hardening.
Embodiment 2
As shown in Figure 7 and Figure 8, high-frequency electric field is with Vibrational force field cooperating with low-temperature processing macro-molecular material device with embodiment 1 not
Same part: shed mould 7, top crown 6 is replaced by lower surface area top crown 6 less, highly higher simultaneously,
And bottom crown 14 is replaced by less, the highly constant bottom crown of upper surface area 14.
More than two pieces macromolecules or polymer-based composite board 21 are overlapped under the adhesive effect of adhesive layer 22, puts
In bottom crown upper surface.During use, opening hydraulic control system, hydraulic jack 11 promotes whole depressed portion and exciting
Device 12, along guide pillar 3 pan-up, makes macromolecule or polymer-based composite board fit with welding electric pole plate 19, opens
Heater, preheats to welded blank；Treat that temperature reaches design temperature (usually less than 100 DEG C), open exciting device
12, apply the extrusion stress of certain amplitude and frequency (vibration frequency and adjustable amplitude, vibration frequency adjustable extent is to sheet material
10-1000Hz, adjustable amplitude scope is 1-10mm), open radio-frequency generator 1 simultaneously, high-frequency electric field is applied to welded blank
(high-frequency electric field is produced by radio-frequency generator, and frequency is one of 6.78MHz, 13.56MHz and 27.12MHz tri-kinds), real
Existing high-frequency electric field and the synergy of Vibrational force field；After melt bonded between sheet material weld interface, stop high-frequency electric field simultaneously
And Vibration Force Field, solidified welding structure, and then realize macromolecule or polymer-based composite board in high-frequency electric field and vibration
Under the synergy in the field of force, watery fusion welding procedure.In macromolecule or polymer-based composite board 21, macromolecular material is
Polyolefin, polymethyl methacrylate, PLA or polyvinyl chloride；Polymer-based composite be with carbon fiber, barium titanate,
Titanium dioxide, glass or calcium carbonate are inserts, the filled-type macromolecule with polyolefin, PLA or polyvinyl chloride as matrix
Based composites.Adhesive layer 22 includes polyurethane, polystyrene, polyacrylate, ethene-vinyl acetate and polyvinyl alcohol
Deng polymer binder, or the filled-type high score such as carbon fiber, barium titanate, glass, titanium dioxide and high dielectric ceramic powder
Subbase composite adhesive.
Claims (6)
1. the device of high-frequency electric field and Vibrational force field cooperating with low-temperature processing macro-molecular material, it is characterised in that: mainly taken place frequently by height
Raw device, copper strips, guide pillar, top board, insulation board, top crown, mould, electrical control cubicles, hydraulic jack, exciting device,
Lower platen, bottom crown and heating pipe composition；Described top board, insulation board and top crown are sequentially connected with from top to bottom, in composition
Laminate section, is installed on guide pillar upper end；Lower platen, insulation board and bottom crown are sequentially connected with from down to up, constitute depressed portion,
It is installed on guide pillar lower end；Top crown and bottom crown are oppositely arranged, and mould is positioned over bottom crown upper surface or by be welded
The macromolecule or the polymer-based composite board that connect are placed in bottom crown upper surface；Lower platen down installs exciting device and hydraulic pressure successively
Oil cylinder, top board and lower platen are internal installs heating pipe；Radio-frequency generator both positive and negative polarity via copper strips respectively with top crown and lower pole
Plate is connected, and electrical control cubicles is connected with hydraulic jack, heating pipe and exciting device respectively.
2. device according to claim 1, it is characterised in that: described exciting device selects hydraulic oscillating motor, vibration
Frequency and adjustable amplitude, vibration frequency adjustable extent is 10-1000Hz, and adjustable amplitude scope is 1-10mm.
3. device according to claim 1, it is characterised in that: described insulation board is micarex；Described mould
Material is pottery or polytetrafluoroethylene (PTFE).
4. device according to claim 1, it is characterised in that: single head resistance-type electrical bar selected by described heating pipe.
5. device according to claim 1, it is characterised in that: described bottom crown upper surface installs ceramic screw.
6. device according to claim 1, it is characterised in that: this device also includes base station, and base station is fixed on pressing down section
Divide following；Top crown, insulation board and top board use pottery bolt to connect and fastening；Bottom crown, insulation board and lower platen are adopted
Connect and fastening with pottery bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620412927.0U CN205614912U (en) | 2016-05-06 | 2016-05-06 | Device of low warm working macromolecular material of high frequency electric field and vibrational force field synergy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620412927.0U CN205614912U (en) | 2016-05-06 | 2016-05-06 | Device of low warm working macromolecular material of high frequency electric field and vibrational force field synergy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205614912U true CN205614912U (en) | 2016-10-05 |
Family
ID=57025276
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620412927.0U Withdrawn - After Issue CN205614912U (en) | 2016-05-06 | 2016-05-06 | Device of low warm working macromolecular material of high frequency electric field and vibrational force field synergy |
Country Status (1)
| Country | Link |
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| CN (1) | CN205614912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856473A (en) * | 2016-05-06 | 2016-08-17 | 华南理工大学 | Method and device for processing high polymer material at low temperature through cooperation of high-frequency electric field and vibration force field |
-
2016
- 2016-05-06 CN CN201620412927.0U patent/CN205614912U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856473A (en) * | 2016-05-06 | 2016-08-17 | 华南理工大学 | Method and device for processing high polymer material at low temperature through cooperation of high-frequency electric field and vibration force field |
| CN105856473B (en) * | 2016-05-06 | 2018-04-13 | 华南理工大学 | High-frequency electric field and the method and device of Vibrational force field cooperating with low-temperature processing macro-molecular material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161005 Effective date of abandoning: 20180413 |