CN205467402U - Melting formula rapid prototyping machine based on heating of high frequency electric magnetism - Google Patents
Melting formula rapid prototyping machine based on heating of high frequency electric magnetism Download PDFInfo
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- CN205467402U CN205467402U CN201620192864.2U CN201620192864U CN205467402U CN 205467402 U CN205467402 U CN 205467402U CN 201620192864 U CN201620192864 U CN 201620192864U CN 205467402 U CN205467402 U CN 205467402U
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Abstract
The utility model provides a melting formula rapid prototyping machine based on heating of high frequency electric magnetism, relates to a melting formula rapid prototyping machine, including forming box, wire feed rolls group, material pipe, nozzle, workstation, high -frequency generator, high -frequency heating coil, temperature sensor, the material pipe establish in the below of wire feed rolls group, the material intraduct forms a hot -melting cavity, hot -melting cavity's lower part and nozzle are connected, the high -frequency heating coil twines the surface at the material pipe uniformly, and the both ends of high -frequency heating coil are connected with two outputs of high -frequency generator respectively, temperature sensor establish on the hot -melting cavity of material pipe, temperature sensor is connected with the input of high -frequency generator. The utility model discloses can make the material temperature reach its hot melt point in a short period of time, still can control hot melt temperature and forming temperature accurately, hot melt temperature fluctuations is little, and work piece is of high quality, and energy -conservation is economized on electricity, the maintenance cost is low, easily uses widely.
Description
Technical field
This utility model relates to a kind of melted formula rapidform machine, a kind of melted formula rapidform machine based on high-frequency electromagnetic heating.
Background technology
Melted formula quick shaping process is a kind of to control forming machine by software and successively scan at X/Y plane according to the profile information of 3D model, then the technique forming 3 D workpiece by constantly piling up in Z-direction after thermoplasticity filamentary material rapid melting.During melt material reshaping, control to temperature is extremely important, material temperature is not only needed to reach its heat fusion joint in a short period of time, and no matter be heating-up temperature or chilling temperature, will keep within limits accurately, if it is out of this range, the workpiece of institute's molding is possible to deformation occur, it is impossible to ensure its formed precision.Heating-up temperature as ABS material is at 220 ° of about C, and its forming temperature is maintained at 70 ° of about C, and ABS material the most melted just has certain mobility and good accuracy guarantee.
And current melted formula rapidform machine hot melt chamber employing is all Resistant heating mode, its shortcoming mainly has:
1. hot melting temperature fluctuation is big:
Because Resistant heating mode is basis, the control of a certain temperature range is realized: when temperature height goes beyond the scope, heating is stopped with regard to power-off, when temperature less than this scope with regard to electrified regulation, this mode of heating is to have a grade control, it is difficult to hold in some fixed value uninterruptedly heating, and always fluctuates up and down in this fixed value.
2. forming temperature is unstable:
Owing to resistance heating is to be realized by the resistance wire heating being wound on material pipe, Resistant heating Internal and external cycle is all in heating, that part being only close to metal charge pipe really worked, substantial portion of heat is all lost in shaping box, this makes the temperature of shaping box constantly raise, and the optimum temperature of molding is 70 ° of C, that is the temperature in shaping box preferably must be held in 70 ° of about C, if what the heat of resistance wire was too much is dispersed in shaping box, affect forming temperature, the workpiece molded is made to be easily deformed, do not reach required required precision, workpiece will be produced scrap.
3. material temperature reach its heat fusion joint need time long:
Owing to being contained in the material in hot melt chamber, it is to be realized by the resistance wire heating being wound on material pipe.Heat utilization rate is low, only about 50%-60%, and second half is all lost in shaping box, and material temperature to be made reaches its heat fusion joint, and the time needing heating is longer.
4. power consumption is serious:
Owing to being contained in the material in hot melt chamber, it is to be realized by the resistance wire heating being wound on material pipe.Heat utilization rate is low, only about 50%-60%, and second half is all lost in shaping box, and not only molding effect is deteriorated, and also results in the significant wastage of electric energy.If it addition, use other equipment to make the temperature of shaping box be reduced to optimal forming temperature, the secondary of the energy certainly will be caused again to waste.
5. equipment is the most aging, maintenance cost is high:
The ambient temperature of surrounding is made to reach 80 DEG C or 90 DEG C the highest due to the loss of heat during employing Resistant heating, and the equipment (such as workbench, electric wire etc.) in material shaping box is under long-term hot environment operation, the most aging, service life shortens.And resistance wire itself is a heater, its heating-up temperature is up to 200 DEG C, and also easy high-temperature oxydation itself, heating efficiency is gradually low, heats uneven.Therefore, the workload of maintenance is relatively large, and maintenance cost is the highest.
Summary of the invention
The technical problems to be solved in the utility model is: provide one that material temperature can be made to reach its heat fusion joint in a short period of time, also can be accurately controlled hot melting temperature and forming temperature, and economizing on energy and electricity, melted formula rapidform machine based on high-frequency electromagnetic heating that maintenance cost is low.
The technical scheme solving above-mentioned technical problem is: a kind of melted formula rapidform machine based on high-frequency electromagnetic heating, including shaping box, wire feed wheels, material pipe, nozzle, workbench, described wire feed wheels, expects that pipe, nozzle, workbench are each provided in shaping box；Also include high frequency generator, high frequency heating coil, temperature sensor；Described material pipe is located at the lower section of wire feed wheels, and material pipe is internally formed a hot melt chamber, and the bottom in hot melt chamber is connected with nozzle；Described high frequency heating coil is wrapped in the outer surface of material pipe equably, and the two ends of high frequency heating coil are connected with two outfans of high frequency generator respectively；Described temperature sensor is located on the hot melt chamber of material pipe, and temperature sensor is connected with the input of high frequency generator；Described workbench is located at the lower section of nozzle.
Further technical scheme of the present utility model is: described wire feed wheels include one group of gear reversely rotated, and leaves and the clearance channel expecting that filament diameter adapts between the gear that this group reversely rotates, and the bottom of this clearance channel communicates with the hot melt chamber of material pipe.
Further technical scheme of the present utility model is: scribble insulation material outside described high frequency heating coil.
Further technical scheme of the present utility model is: the panel of described high frequency generator is provided with display screen, frequency/temperature transition button, frequency/temperature regulating key.
Further technical scheme of the present utility model is: described high frequency generator is to be built-in with PID to control the high frequency generator of program.
Further technical scheme of the present utility model is: this forming machine also includes expecting silk locating piece, and this material silk locating piece is located at the top of wire feed wheels, and the centre of material silk locating piece is left and the clearance channel expecting that filament diameter adapts.
Further technical scheme of the present utility model is: this forming machine also includes protective cover, and shielding cover is outside material silk locating piece, wire feed wheels, high frequency heating coil.
Owing to using said structure, the melted formula rapidform machine based on high-frequency electromagnetic heating of this utility model compared with prior art, has the advantages that
1. material temperature can be made to reach its heat fusion joint in a short period of time:
This utility model includes shaping box, wire feed wheels, material pipe, nozzle, workbench, high frequency generator, high frequency heating coil, temperature sensor, wherein material pipe is located at the lower section of wire feed wheels, material pipe is internally formed a hot melt chamber, and the bottom in hot melt chamber is connected with nozzle；High frequency heating coil is wrapped in the outer surface of material pipe equably, and the two ends of high frequency heating coil are connected with two outfans of high frequency generator respectively；Temperature sensor is located on the hot melt chamber of material pipe, and temperature sensor is connected with the input of high frequency generator.Owing to high-frequency electromagnetic heating is the rectification inverter circuit being passed through " AC-DC-AC " by electromagnetic induction heating generator, civil power (AC 220 V or 380 volts/50 hertz) is converted into the high-frequency high-voltage that frequency is 20-40 KHz, the alternating magnetic field of change at a high speed can be produced when the high frequency voltage electric current of change at a high speed flows through coil, eddy current makes metallic atom high speed random motion, atom collides with each other, rub and produce heat energy, thus play the effect of heating, i.e. by electric energy is converted into magnetic energy, heated metal surface is made to produce inductive loop, make metal material fast heating voluntarily itself.And high frequency generator is connected by this utility model with high frequency heating coil, have employed high-frequency electromagnetic principle of heating, make material pipe fast heating voluntarily itself, avoid traditional resistor silk mode of heating and be only close to expect a fever sensation of the face of pipe, the phenomenon that only heat of half is utilized, therefore the power using the rapidform machine 80% of high-frequency electromagnetic heating is all used in heating in link, there is heat collection and neutralize the feature that thermal loss is little, the thread material temperature of thermoplasticity can be made to reach its heat fusion joint in a short period of time, it is ensured that being smoothed out of melted formula quick shaping process.
2. can be accurately controlled hot melting temperature and forming temperature:
This utility model includes high frequency generator, high frequency heating coil, temperature sensor, and wherein high frequency heating coil is wrapped in the outer surface of material pipe equably, and the two ends of high frequency heating coil are connected with two outfans of high frequency generator respectively；Temperature sensor is located on the hot melt chamber of material pipe, and temperature sensor is connected with the input of high frequency generator.In terms of the control to temperature, this utility model is to set heating-up temperature on high frequency generator, high frequency generator output high-frequency and high-voltage gives heating coil, coil produces alternating magnetic field and heats hot melt chamber, heating-up temperature is sampled by temperature sensor in real time that be connected on hot melt chamber, then high frequency generator is fed back to, high frequency generator temperature and design temperature to feeding back again contrasts, if feedback temperature is lower than design temperature, high frequency generator just increases output frequency, continue to improve heating-up temperature, until equal to the temperature set；On the contrary, if feedback temperature is higher than design temperature, high frequency generator will reduce output frequency, reduces its heating-up temperature, until equal to design temperature.And in terms of equipment, this utility model is to use high frequency generator, high frequency heating coil to heat, high-frequency induction heating is to make hot melt chamber itself generate heat, and heat is internally to dissipate, and heat compares concentration, so the temperature of shaping box will not be produced impact.Therefore, this utility model can be accurately controlled hot melting temperature and forming temperature.
3. hot melting temperature fluctuation is little:
Owing to high frequency generator of the present utility model is to be built-in with PID to control the high frequency generator of program, the panel of this high frequency generator is provided with display screen, frequency/temperature transition button, frequency/temperature regulating key.PID function in high frequency generator makes the temperature in hot melt chamber be controlled in the temperature value of setting, and precision unit can reach ± 0.01 ° of C.Further, since square being directly proportional of the size of induced power and frequency, and the number of turns being wound around heating coil is the most, line footpath is the biggest, and the magnetic flux that sensing produces is the most, and power (temperature) is also with increase.So, as long as increasing or reduce the frequency/temperature regulating key on high frequency generator or changing coil and the number of turns and line footpath size just can change its heating-up temperature, the mode of this regulation temperature belongs to electrodeless control.Therefore, this utility model can be maintained in some fixed value and uninterruptedly heat, and hot melting temperature fluctuation is little.
4. shaping workpiece quality is good:
The high-frequency electromagnetic heating used due to this utility model is to be connected with high frequency heating coil by high frequency generator, by the electromagnetic induction heating generator rectification inverter circuit by " AC-DC-AC ", convert electrical energy into magnetic energy, metal material fast heating voluntarily itself is made to realize, the power making rapidform machine 80% is all used in heating in link, and forming temperature is stable；Further, outside high frequency heating coil of the present utility model, scribble insulation material, decrease scattering and disappearing of heat；This utility model also includes protective cover, and protective cover is respectively fitted over outside wire feed wheels, high frequency coil and nozzle, and the space within protective cover realizes closed-loop temperature control, in case heat is dissipated in shaping box, the temperature of molding is preferably maintained at 70 ° of about C.Therefore, this utility model will not produce impact to the temperature of shaping box, and forming temperature is stable, and the workpiece molded is unlikely to deform, and easily reaches required required precision, thus ensure that shaping workpiece quality.
5. economizing on energy and electricity:
High frequency generator is connected by this utility model with high frequency heating coil, have employed high-frequency electromagnetic principle of heating, make material pipe fast heating voluntarily itself, avoid traditional resistor silk mode of heating and be only close to expect a fever sensation of the face of pipe, the phenomenon that only heat of half is utilized, therefore the power using the rapidform machine 80% of high-frequency electromagnetic heating is all used in heating in link, uses high-frequency electromagnetic to add heat energy and power consumption is greatly reduced, and power savings can reach 30%-50%.
6. maintenance cost is low:
Owing to high-frequency electromagnetic heating coil of the present utility model can bear the high temperature of more than 500 degree, owing to coil itself does not produce heat, so the time in service life is long, it is to avoid Resistant heating needs often to change the drawbacks safeguarded, reduces maintenance cost；Therefore, maintenance cost of the present utility model is low.
Below, in conjunction with the accompanying drawings and embodiments the technical characteristic of the melted formula rapidform machine based on high-frequency electromagnetic heating of this utility model is further described.
Accompanying drawing explanation
The structural representation of the melted formula rapidform machine based on high-frequency electromagnetic heating described in Fig. 1: embodiment one.
In above-mentioned accompanying drawing, each description of reference numerals is as follows:
1-high frequency generator,
101-display screen, 102-frequency/temperature transition button, 103-frequency/temperature regulating key,
104-high frequency output line,
2-shaping box, 3-expects silk, and 4-expects silk locating piece, 5-wire feed wheels, 6-protective cover,
7-hot melt chamber, 8-high frequency heating coil, 9-expects to manage, 10-nozzle, 11-temperature sensor,
12-workbench, 13-melt.
Detailed description of the invention
Embodiment one:
A kind of melted formula rapidform machine based on high-frequency electromagnetic heating, including high frequency generator 1, shaping box 2, it is positioned at the material silk locating piece 4 of shaping box 2, wire feed wheels 5, protective cover 6, high frequency heating coil 8, material pipe 9, nozzle 10, temperature sensor 11, workbench 12, wherein:
The panel of described high frequency generator 1 is provided with display screen 101, frequency/temperature transition button 102, frequency/temperature regulating key 103, and this high frequency generator 1 is to be built-in with PID to control the high frequency generator of program；
Described material silk locating piece 4, wire feed wheels 5, material pipe 9 set gradually from top to bottom；Material pipe 9 is metal tube, and this material pipe 9 is internally formed a hot melt chamber 7, and the bottom in hot melt chamber 7 is connected with nozzle 10, and the lower section of nozzle 10 is provided with described workbench 12.The centre of described material silk locating piece 4 is left and expects clearance channel A that the diameter of silk 3 adapts；Described wire feed wheels 5 include one group of gear reversely rotated, and also leave and expect clearance channel B that the diameter of silk 3 adapts between the gear that this group reversely rotates, and the bottom of this clearance channel B communicates with the hot melt chamber 7 of material pipe 9.
Described high frequency heating coil 8 is outside scribbles insulation material, and this high frequency heating coil 8 is wrapped in the outer surface of material pipe 9 equably, and the two ends of high frequency heating coil 8 are connected with two outfans of high frequency generator 1 by high frequency output line 104 respectively.Described temperature sensor 11 is located on the hot melt chamber 7 of material pipe 9, and temperature sensor 11 is connected with the input of high frequency generator 1；Described protective cover 6 covers on outside material silk locating piece 4, wire feed wheels 5, high frequency heating coil 8.
The operation principle of the melted formula rapidform machine based on high-frequency electromagnetic heating of this utility model is as follows:
First, the straight line and the number of turns of winding needing to be wound around high frequency heating coil 8 is calculated according to heating power, then high frequency heating coil 8 is wrapped in uniformly the outer surface of material pipe 9, then at the outer surface of high frequency heating coil 8 plus one layer of heat preservation material, to prevent scattering and disappearing of heat.The two ends of high frequency heating coil 8 are coupled with two outfans of output of high frequency generator 1 by high frequency output line 104, start high frequency generator 1, high frequency generator 1 sets default heating-up temperature, high frequency generator 1 exports high-frequency and high-voltage to high frequency heating coil 8, high frequency heating coil 8 produces alternating magnetic field, hot melt chamber 7 is heated rapidly, actual heating-up temperature is sampled by temperature sensor 11 in real time that be connected on hot melt chamber 7, then high frequency generator 1 is fed back to, high frequency generator 1 actual heating-up temperature and default heating-up temperature to feeding back again contrasts, if the actual heating-up temperature fed back is lower than default heating-up temperature, high frequency generator 1 just increases output frequency, continue to improve actual heating-up temperature, until equal to presetting heating-up temperature；On the contrary, if the actual heating-up temperature fed back is higher than default heating-up temperature, high frequency generator 1 will reduce output frequency, reduces its actual heating-up temperature, until equal to presetting heating-up temperature；The material silk 3 clearance channel in the middle of material silk locating piece 4 and wire feed wheels 5 passes, start wire feed wheels 5, material silk delivers to carry out in hot melt chamber 7 fuse, fuse sprays from nozzle 10, nozzle 10 carries out motion with the melt 13 being extruded on table 12 by the profile of 3D model and fills, owing to can solidify rapidly after the melt cooling of extrusion, and it is bonding with the material of bottom, and past Z-direction accumulation in layer, current layer is played location and the effect supported by last layer, the most constantly circulation, ultimately forms the workpiece as 3D mould shapes.
Claims (7)
1. a melted formula rapidform machine based on high-frequency electromagnetic heating, including shaping box (2), wire feed wheels (5), material pipe (9), nozzle (10), workbench (12), described wire feed wheels (5), material manage (9), nozzle (10), workbench (12) is each provided in shaping box (2)；It is characterized in that: also include high frequency generator (1), high frequency heating coil (8), temperature sensor (11)；Described material pipe (9) is located at the lower section of wire feed wheels (5), and material pipe (9) is internally formed a hot melt chamber (7), and the bottom of hot melt chamber (7) is connected with nozzle (10)；Described high frequency heating coil (8) is wrapped in the outer surface of material pipe (9) equably, and the two ends of high frequency heating coil (8) are connected with two outfans of high frequency generator (1) respectively；Described temperature sensor (11) is located on the hot melt chamber (7) of material pipe (9), and temperature sensor (11) is connected with the input of high frequency generator (1)；Described workbench (12) is located at the lower section of nozzle (10).
Melted formula rapidform machine based on high-frequency electromagnetic heating the most according to claim 1, it is characterized in that: described wire feed wheels (5) include one group of gear reversely rotated, leaving and the clearance channel expecting that filament diameter adapts between the gear that this group reversely rotates, the bottom of this clearance channel communicates with the hot melt chamber (7) of material pipe (9).
Melted formula rapidform machine based on high-frequency electromagnetic heating the most according to claim 1, it is characterised in that: described high frequency heating coil (8) is outside scribbles insulation material.
Melted formula rapidform machine based on high-frequency electromagnetic heating the most according to claim 1, it is characterised in that: the panel of described high frequency generator (1) is provided with display screen (101), frequency/temperature transition button (102), frequency/temperature regulating key (103).
Melted formula rapidform machine based on high-frequency electromagnetic heating the most according to claim 1, it is characterised in that: described high frequency generator (1) is to be built-in with PID to control the high frequency generator of program.
6. according to the melted formula rapidform machine based on high-frequency electromagnetic heating described in claim 1 to 5 any claim, it is characterized in that: this forming machine also includes expecting silk locating piece (4), this material silk locating piece (4) is located at the top of wire feed wheels (5), and the centre of material silk locating piece (4) is left and the clearance channel expecting that filament diameter adapts.
Melted formula rapidform machine based on high-frequency electromagnetic heating the most according to claim 6, it is characterized in that: this forming machine also includes that protective cover (6), protective cover (6) are enclosed within material silk locating piece (4), wire feed wheels (5), high frequency heating coil (8) outward.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620192864.2U CN205467402U (en) | 2016-03-14 | 2016-03-14 | Melting formula rapid prototyping machine based on heating of high frequency electric magnetism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620192864.2U CN205467402U (en) | 2016-03-14 | 2016-03-14 | Melting formula rapid prototyping machine based on heating of high frequency electric magnetism |
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| CN205467402U true CN205467402U (en) | 2016-08-17 |
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| CN201620192864.2U Expired - Fee Related CN205467402U (en) | 2016-03-14 | 2016-03-14 | Melting formula rapid prototyping machine based on heating of high frequency electric magnetism |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346782A (en) * | 2016-09-14 | 2017-01-25 | 深圳新域中科科技股份有限公司 | 3D printer melt extruding mechanism with quick temperature adjusting function |
| CN107414081A (en) * | 2017-06-19 | 2017-12-01 | 哈尔滨工业大学 | The wire feed fuse system and its application process of metal increment manufacture |
| CN109591285A (en) * | 2018-12-03 | 2019-04-09 | 青岛瑟克塞斯3D打印科技有限公司 | A kind of 3D printer of plurality of nozzle-type fusion technology |
| CN111315558A (en) * | 2017-10-03 | 2020-06-19 | 捷普有限公司 | Apparatus, system, and method for operating an additive manufacturing nozzle |
| CN112372129A (en) * | 2021-01-18 | 2021-02-19 | 烟台博迈精密机械制造有限公司 | High-frequency welding device is used in labeller production |
-
2016
- 2016-03-14 CN CN201620192864.2U patent/CN205467402U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346782A (en) * | 2016-09-14 | 2017-01-25 | 深圳新域中科科技股份有限公司 | 3D printer melt extruding mechanism with quick temperature adjusting function |
| CN107414081A (en) * | 2017-06-19 | 2017-12-01 | 哈尔滨工业大学 | The wire feed fuse system and its application process of metal increment manufacture |
| CN111315558A (en) * | 2017-10-03 | 2020-06-19 | 捷普有限公司 | Apparatus, system, and method for operating an additive manufacturing nozzle |
| CN111315558B (en) * | 2017-10-03 | 2022-09-27 | 捷普有限公司 | Apparatus, system, and method for operating an additive manufacturing nozzle |
| CN109591285A (en) * | 2018-12-03 | 2019-04-09 | 青岛瑟克塞斯3D打印科技有限公司 | A kind of 3D printer of plurality of nozzle-type fusion technology |
| CN112372129A (en) * | 2021-01-18 | 2021-02-19 | 烟台博迈精密机械制造有限公司 | High-frequency welding device is used in labeller production |
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Granted publication date: 20160817 Termination date: 20180314 |
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| CF01 | Termination of patent right due to non-payment of annual fee |