CN203957365U - A kind of by flexible conduit by hot melt material extrusion device - Google Patents
A kind of by flexible conduit by hot melt material extrusion device Download PDFInfo
- Publication number
- CN203957365U CN203957365U CN201420420990.XU CN201420420990U CN203957365U CN 203957365 U CN203957365 U CN 203957365U CN 201420420990 U CN201420420990 U CN 201420420990U CN 203957365 U CN203957365 U CN 203957365U
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- hot melt
- melt material
- flexible conduit
- export
- extrusion device
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Abstract
The utility model relates to hot melt material field shaping technique, be specifically related to be a kind of by flexible conduit by hot melt material extrusion device.The utility model by flexible conduit by hot melt material extrusion device, comprise flexible conduit, described flexible conduit one end is hot melt material entrance point, described hot melt material entrance point is connected with drive unit, the other end is the hot melt material port of export, the described flexible conduit hot melt material port of export is connected with described calorifier inlets end, and described heater outlet end is connected with extrusion nozzle, and the described flexible conduit hot melt material port of export and described calorifier inlets end junction are provided with pressure cap and compress realization sealing.Can reduce like this quality of movable part in extrusion device, improve translational speed, can make hot melt material meet at the seam flexible conduit port of export and calorifier inlets place coldly avoids forming tumour shape and piles up to block and continue to enter heater, ensure that in flexible conduit, hot melt material extrusion hot melt material pan feeding is smooth and easy, make the smooth moulding of hot melt material.
Description
Technical field
The utility model relates to hot melt material field shaping technique, relate in particular to a kind of by flexible conduit by hot melt material extrusion device.
Background technology
Rapid shaping technique is emerging advanced manufacturing technology of late 1980s, is a kind of prototype manufacturing technology based on discrete accumulation thought.The outstanding advantage of rapid shaping technique is embodied in: first, it is a kind of Digitized Manufacturing Technology based on digital drive completely, realizes the manufacture process that directly has CAD prototype, without special frock clamp; Secondly, the complexity of forming process and part is irrelevant, can manufacture the parts of any complicated shape.The rapid shaping field that is widely used, especially in the new product development stage, adopts rapid shaping technique, can greatly shorten the construction cycle of product, significantly reduces trial production and makes expense, fast responding market demand.At present, quick shaping process technology has more than more than 10 kinds, and most typical process has stereolithography (SL), laminated solid mass manufacture (LOM), selective laser sintering (SLS) and fusion sediment moulding (FDM).Hot melt material extrusion device is the critical component of fused deposition method rapid prototyping system, and it is hot melt material, for example plastics, and raw material melts, and produces filament by extruder head, and under the control of computer system, constructs three-dimensional entity model with this filament.Traditional hot melt material extrusion device is by drive unit or driving pump, the fixed structure that heater and extruder head are made of one.Its structure is relatively simple, and the course of work is easily controlled, but that its problem is quality is large, and particularly drive unit quality is very large.
The application number fused body continuous extrusion that has been 200520080240.3 Patent Application Publication, disclosed fused body continuous extrusion quality is large, its drive motors heaviness, activity is poor, accumulation running part and heating part, whole extrusion device quality is larger; This extrusion device has limited extruder head translational speed, the i.e. speed of three-dimensional fast shaping on the one hand; To X, the requirement of mechanical strength of Y-axis is higher on the other hand, needs certain driving power to reach movement velocity, and this has further increased again cost; The hot melt material of some melting simultaneously can produce peculiar smell, and sucking for a long time this gas can affect healthy.Although can, by whole 3 D-printing molding space sealing, add scavenger fan and filter, such cost is high, and a large amount of circulations of air is unfavorable for maintaining the temperature in three-dimensionally shaped chamber.
The Patent Application Publication that application number is 201320344632.0 provide a kind of and drive unit can have been fixed, reduce the quality of movable part, improve the new-type heat-melting material extrusion device of extruder head translational speed, described device, with gas communication device, can filter the peculiar smell of the hot melt material generation of some melting simultaneously.But, exist hot melt material because the heat of hot melt heater is to external diffusion, make the hot melt material will deliquescing before not entering heater, if the hot melt material entrance point interface of flexible conduit has gap, under the effect of feed pressure, the material of this deliquescing can flow out at the gap place at heater and hot melt duct entry place, and the hot melt material of outflow is met cold formation tumour shape and piled up, so just block hot melt material and continue to enter heater, affect hot melt material Forming Quality.
Utility model content
In order to solve the problems of the technologies described above, the utility model provide a kind of by flexible conduit by hot melt material extrusion device, make the hot melt material flowing out avoid meeting cold formation tumour shape accumulation at the flexible conduit hot melt material port of export and calorifier inlets end junction, block hot melt material and continue to enter heater, ensure that in flexible conduit, the extrusion of hot melt material extrusion device is reliably smooth and easy, the smooth moulding of hot melt material.
The utility model is achieved by the following technical solution: a kind of by flexible conduit by hot melt material extrusion device, comprise flexible conduit, described flexible conduit one end is hot melt material entrance point, described hot melt material entrance point is connected with drive unit, the other end is the hot melt material port of export, the described hot melt material port of export is connected with calorifier inlets end, heater outlet end is connected with extrusion nozzle, and the described hot melt material port of export and described calorifier inlets end junction are provided with the pressure cap for press seal.
Further, the described hot melt material port of export is provided with flange, described pressure cap by described flange by the described hot melt material port of export and described calorifier inlets side pressure tightening seal.
Further, described pressure cap outside is provided with fin.
The described hot melt material port of export is provided with projection further, and described calorifier inlets end is provided with depression, and described projection and described depression are installed and compressed the rear sealing that realizes by described pressure cap.
Further, the described hot melt material port of export is pressed in described pressure cap by the mode of hot pressing, forms described flange.
Further, described pressure cap now seals the described hot melt material port of export and described calorifier inlets side pressure consolidation by the internal thread of setting and the external screw thread of described calorifier inlets end setting.
Further, in described pressure cap, pressure ring is housed, described pressure cap now seals the described flexible conduit hot melt material port of export and described calorifier inlets side pressure consolidation by described pressure ring.
Further, described pressure ring is provided with internal thread, and the described hot melt material port of export is connected with described screw-internal thread fit by heater hot melt.
Further, described pressure ring is installed on the described flexible conduit hot melt material port of export by bonding mode.
Further, described heater is provided with at least more than one arrival end, and described each arrival end is connected with flexible conduit respectively.
The beneficial effects of the utility model are: reduce the quality of movable part in described extrusion device, improve translational speed; Realize the seamless link of feed conduit to heater, make pan feeding smooth and easy, can not block at flexible conduit feeding mouth.
Brief description of the drawings
Figure 1 shows that the utility model structural representation;
Figure 2 shows that in the utility model, pressure cap is installed cutaway view;
Figure 3 shows that the threaded and flange of the utility model pressure cap installs amplification profile;
Figure 4 shows that in the utility model, pressure cap is installed amplification profile by pressure ring is threaded with flange;
Figure 5 shows that in the utility model, heater has two arrival ends that cutaway view is installed.
Reference numeral is as follows
1-flexible conduit, 2-hot melt material entrance point, 3-fin 3,4-pressure cap, 5-heater, 6-extrusion nozzle, the 7--hot melt material port of export, 8-heater outlet end, 9-heater population end, 10-flange, 11-pressure ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model detailed description of the invention is described in further detail.
Embodiment 1
As Figure 1-4, a kind of by flexible conduit by hot melt material extrusion device, comprise a flexible conduit 1, described flexible conduit one end is hot melt material entrance point 2, described hot melt material entrance point 2 is connected with drive unit, the other end is the hot melt material port of export 7, the hot melt material port of export 7 of described flexible conduit 1 is connected with described calorifier inlets end 9, described heater outlet end 8 is connected with extrusion nozzle 6, the described flexible conduit hot melt material port of export 7 and described calorifier inlets end 9 junctions are provided with pressure cap 4 and compress realization sealing, the described flexible conduit hot melt material port of export 7 is provided with flange 10, described pressure cap 4 seals compression by the described flexible conduit hot melt material port of export 7 with described calorifier inlets end 9 by flange 10, described pressure cap 4 outsides are provided with fin 3, the described flexible conduit hot melt material port of export 7 outsides are provided with projection, described calorifier inlets end 9 is provided with depression, described projection and described depression are installed and are compressed the rear sealing that realizes by described pressure cap 4, the flange 10 that the described flexible conduit hot melt material port of export 7 is connected with described pressure cap 4 adopts the mode of hot pressing to process, described pressure cap 4 is enclosed within to the described flexible conduit hot melt material port of export 7, use the technique of hot-die to carry out hot pressing processing, more than first hot-die being heated to the described flexible conduit hot melt material port of export 7 fusion temperatures, then this hot-die is pressed in the described flexible conduit hot melt material port of export 7, the described flexible conduit hot melt material port of export 7 is melted and compress and be filled in described pressure cap 4 under the effect of this hot-die pressure, form described flange 10, the external screw thread that the internal thread that described pressure cap 4 is provided with by inside arranges with described calorifier inlets end 9 cooperatively interacts and is connected, the described flexible conduit hot melt material port of export 7 and described calorifier inlets end 9 are compressed to realization sealing, in described pressure cap 4, pressure ring 11 is housed, described pressure cap 4 compresses realization sealing by described pressure ring 11 by the described flexible conduit hot melt material port of export 7 and described calorifier inlets end 9, described pressure ring 11 is installed on the described flexible conduit hot melt material port of export 7 by screw thread, described pressure ring 11 is installed on the described flexible conduit hot melt material port of export 7 by bonding mode, shown in Fig. 1, hot melt material enters described flexible conduit hot melt material entrance point 2, also be the entrance that hot melt material enters flexible pipe, through the described flexible conduit hot melt material port of export 7, enter heater 5, after heated fusing, extrude through extrusion nozzle 6, form filament, pressure cap 4 is closely connected to the flexible conduit hot melt material port of export 7 on heater 5 arrival ends 9, form seamless link, as shown in Figure 2, if the junction between the flexible conduit hot melt material port of export 7 and heater 5 arrival ends 9 has gap to occur, the material of hot melt can enter this gap, can increase the pressure between flexible conduit 1 and heater 5 on the one hand, cause pressure cap 4 to lose efficacy, because under pressure, hot melt material enters this gap, the flexible conduit hot melt material port of export 7 is increased by connecting equivalent area between pressure cap 4 and heater 5, the hot melt material that enters on the other hand this gap does not reach desirable fusion temperature, viscosity is larger, can enter heater 5 to hot melt material and produce very large resistance, extrusion is had some setbacks, for making the extrusion of hot-melt extruded device of described flexible conduit reliably smooth and easy, require to avoid this gap to occur, so have projection on the described flexible conduit hot melt material port of export 7, described heater 5 arrival ends 9 are provided with depression, and both realize sealing contact after installing by described pressure cap 4.As shown in Figure 3 and Figure 4, described close contact is exactly that the sealing of described projection and depression contacts, described projection is under the pressure of hot melt material, can more closely be affixed to the depression of the arrival end 9 of described heater 5, thereby avoid occurring gap, again as shown in Figure 3 and Figure 4, pressure cap 4 is fixed on heater 5 by screw thread, and the described flexible conduit hot melt material port of export 7 is fixedly connected with heater by flange 10, closely be connected on heater 5 arrival ends, after pressure cap 4 is tightened, between flange 10 and heater 5, be do not have apertured, also the problem of just having avoided the material of the hot melt described in the preceding paragraph can enter this gap.In the course of the work, when hot melt material order is pushed into heater 5 through described flexible conduit hot melt material entrance point 2 and the described flexible conduit hot melt material port of export 7, the described flexible conduit hot melt material port of export 7 is bearing rightabout pulling force, under the long term of this pulling force, junction between the described flexible conduit hot melt material port of export 7 and heater 5 likely there will be gap, in order to reduce the generation of this situation, can further reinforce the connection with screw thread at the connecting portion of the flexible conduit hot melt material port of export 7 and pressure cap 4, like this some pulling force be by this threaded function on pressure cap 4, reduce the pulling force that bear at flange 10 places, extend working life, described flange 10 can be processed by the mode of hot pressing, the hot pressing die using in heat pressing process, more than the temperature of hot-die being heated to the fusing point of described flexible conduit hot melt material, mode by pressurization forms described flange 10, when pressure cap 4 links on the flexible conduit hot melt material port of export 7 are during with described screw thread, to be first screwed into pressure cap 4, then carrying out hot press operation, the global facility being formed by the described flexible conduit hot melt material port of export 7 and pressure cap 4 of final formation, the feature of this structure is firmly simple.The utility model can reduce the quality of movable part in described extrusion device, improves translational speed; Realize the seamless link of feed conduit to heater, make pan feeding smooth and easy, can not block at flexible conduit feeding mouth.
Embodiment 2
As Figure 1-5, the present embodiment 2 is with the difference of embodiment 1, heater 5 described in the present embodiment 2 is provided with at least more than one arrival end 9, can be 2, 3 or more, different materials need to enter heater 5 according to actual needs, set the quantity of the arrival end 9 of heater 5, each arrival end 9 of described heater 5 compresses to connect from different flexible conduit 1 ports of export 7 respectively realizes sealing, after the described flexible conduit hot melt material port of export 7 and pressure cap 4 are installed to heater 5, the direction of the described flexible conduit hot melt material port of export 7 is uncertain, that is to say, if described heater 5 is fixed, when the global facility that the described flexible conduit hot melt material port of export 7 and pressure cap 4 form tightens on heater 5, described flexible conduit is normally bending, as shown in Figure 1, its bending towards being uncertain, this uncertain be not problem conventionally for the application of only having a flexible conduit hot melt material port of export 7, but in the time having multiple material to enter heater 5 by the flexible conduit hot melt material port of export 7, while namely having the many flexible conduit hot melt material ports of export 7, the described flexible conduit hot melt material port of export 7 towards uncertain, can make flexible conduit 1 described in some may be operated under factitious case of bending, increasing the unnecessary interior arrival end 2 of described flexible conduit 1 and the port of export 7 of firmly causing is easily out of shape.At this moment, can solve by the pressure ring mode shown in Fig. 4, described pressure ring 11 is provided with internal thread, the described hot melt material port of export is connected with described screw-internal thread fit by heater hot melt, the connected mode of pressure ring 11 and the flexible conduit 1 hot melt material port of export 7 and pressure cap 4, identical with the mounting means of pressure cap 4 as shown in Figure 2, but pressure ring 11 can be in the interior rotation of pressure cap 4 in the time not compressing completely as shown in Figure 4, when installation, can adjust 7 bendings of the described flexible conduit hot melt material port of export towards, fin 3 conducts the heat of coming by heater 5 by pressure cap 4 and dissipates as shown in Figure 1, avoiding this heat to prolong 1 transmission of feeding flexible conduit causes hot melt material softening prematurely, affect this hot melt material and be pushed into heater 5.
In above two embodiment, described flexible conduit 1 can be made up of fluorine plastic tube, and their coefficient of frictions are low, high temperature resistant again, and for example polytetrafluoroethylene PTFE pipe can be operated in the high temperature of 250 degrees Celsius.For improving the intensity of described flexible conduit, can be at coated outside metal snake leather hose or the bellows of this flexible conduit, described pressure cap 4 and pressure ring 11 are made by resistant to elevated temperatures hard material, and as polyether-ether-ketone PEEK or other similar materials, they have again certain thermal insulation.
The utility model is not limited to above-mentioned embodiment, and in the situation that not deviating from flesh and blood of the present utility model, any distortion, improvement, the replacement that it may occur to persons skilled in the art that all fall into scope of the present utility model.
Claims (10)
- One kind by flexible conduit by hot melt material extrusion device, comprise flexible conduit (1), described flexible conduit one end is hot melt material entrance point (2), described hot melt material entrance point (2) is connected with drive unit, the other end is the hot melt material port of export (7), the described hot melt material port of export (7) is connected with calorifier inlets end (9), heater outlet end (8) is connected with extrusion nozzle (6), it is characterized in that, the described hot melt material port of export (7) and described calorifier inlets end (9) junction are provided with the pressure cap (4) for press seal.
- According to claim 1 by flexible conduit by hot melt material extrusion device, it is characterized in that, the described hot melt material port of export (7) is provided with flange (10), and described pressure cap (4) passes through described flange (10) by the described hot melt material port of export (7) and described calorifier inlets end (9) press seal.
- According to described in claim 1 or 2 by flexible conduit by hot melt material extrusion device, it is characterized in that, described pressure cap (4) outside is provided with fin (3).
- According to claim 1 by flexible conduit by hot melt material extrusion device, it is characterized in that, the described hot melt material port of export (7) is provided with projection, described calorifier inlets end (9) is provided with depression, and described projection and described depression are installed and compressed the rear sealing that realizes by described pressure cap (4).
- According to claim 2 by flexible conduit by hot melt material extrusion device, it is characterized in that, the described hot melt material port of export (7) is pressed in described pressure cap (4) by the mode of hot pressing, forms described flange (10).
- According to claim 1 by flexible conduit by hot melt material extrusion device, it is characterized in that, the described hot melt material port of export (7) and described calorifier inlets end (9) are compressed realization sealing by the external screw thread that described pressure cap (4) arranges by internal thread and the described calorifier inlets end (9) of setting.
- According to claim 1 by flexible conduit by hot melt material extrusion device, it is characterized in that, pressure ring (11) is housed in described pressure cap (4), and described pressure cap (4) compresses realization sealing by described pressure ring (11) by the described flexible conduit hot melt material port of export (7) and described calorifier inlets end (9).
- According to claim 7 by flexible conduit by hot melt material extrusion device, it is characterized in that, described pressure ring (11) is provided with internal thread, the described hot melt material port of export (7) is connected with described screw-internal thread fit by heater hot melt.
- According to claim 7 by flexible conduit by hot melt material extrusion device, it is characterized in that, described pressure ring (11) is installed on the described flexible conduit hot melt material port of export (7) by bonding mode.
- According to claim 1 by flexible conduit by hot melt material extrusion device, it is characterized in that, described heater (5) is provided with at least more than one arrival end (9), and described each arrival end (9) is connected with flexible conduit (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420990.XU CN203957365U (en) | 2014-07-29 | 2014-07-29 | A kind of by flexible conduit by hot melt material extrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420990.XU CN203957365U (en) | 2014-07-29 | 2014-07-29 | A kind of by flexible conduit by hot melt material extrusion device |
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| Publication Number | Publication Date |
|---|---|
| CN203957365U true CN203957365U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420420990.XU Expired - Fee Related CN203957365U (en) | 2014-07-29 | 2014-07-29 | A kind of by flexible conduit by hot melt material extrusion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149343A (en) * | 2014-07-29 | 2014-11-19 | 厦门达天电子科技有限公司 | Hot-melting material extruding device by use of flexible guide pipe |
-
2014
- 2014-07-29 CN CN201420420990.XU patent/CN203957365U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149343A (en) * | 2014-07-29 | 2014-11-19 | 厦门达天电子科技有限公司 | Hot-melting material extruding device by use of flexible guide pipe |
| CN104149343B (en) * | 2014-07-29 | 2017-01-25 | 厦门达天电子科技有限公司 | Hot-melting material extruding device by use of flexible guide pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20170729 |
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| CF01 | Termination of patent right due to non-payment of annual fee |