CN203093045U - Multi-extrusion injection device - Google Patents
Multi-extrusion injection device Download PDFInfo
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- CN203093045U CN203093045U CN 201320083985 CN201320083985U CN203093045U CN 203093045 U CN203093045 U CN 203093045U CN 201320083985 CN201320083985 CN 201320083985 CN 201320083985 U CN201320083985 U CN 201320083985U CN 203093045 U CN203093045 U CN 203093045U
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- piezo
- spray chamber
- electric crystal
- discharging
- injection device
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Abstract
The utility model discloses a multi-extrusion injection device which comprises an injection body, a transition body, a storage bin, a piezoelectric vibration mechanism, a feeding pressure device, a nozzle, a heating device and a temperature control device, wherein a vertical discharging injection cavity is formed in the injection body; the lower end of the discharging injection cavity is provided with a spray pipe; the upper part of the discharging injection cavity is communicated with at least one feeding injection cavity in a cross mode; the piezoelectric vibration mechanism is inserted into the inside of the upper end of the discharging injection cavity in a sealed mode; the upper end of the transition body is provided with the storage bin; according to the feeding pressure device, the raw materials in the discharging injection cavity in a fused state can be kept in a critical stress balance state; the heating device and the temperature control device are arranged on the side wall of the injection body and the transition body; and the temperature control device can induce the temperature of the raw materials in the feeding and discharging injection cavities and control the heating device to work. The accurate timeliness of the spray pipe drop jet is ensured, and the delay and salivation phenomena are avoided, so that the high precision and high smoothness of the formed products are guaranteed.
Description
Technical field
The utility model relates to a kind of rapidform machine injection device, particularly a kind of injection device of multiple extruding.
Background technology
Rapidform machine (3 D stereo printing) can be in the CAD(CAD) under the driving of data, the mode that adds up with the material mock-up that is shaped.Its forming process does not need traditional cutter, mould and lathe just can produce arbitrary shape.It can be automatic, fast, directly and accurately the design in the computer is converted into mock-up, even direct finished parts or mould, thereby effectively shorten the research and development of products cycle, improve the quality of products and reduce production cost, rapidform machine comes out by the molten state droplet ejection of injection device with the low melting point raw material, pile up aftershaping, present injection device raw material stressed in the discharging spray chamber is difficult to keep balance, often sent jeting instruction, the jet pipe of injector does not also eject drop, jeting instruction is through with, jet pipe does not also stop liquid droplets, causes the moulding precision low, the not enough smooth and beautiful appearance of moulding product surface.
The utility model content
In order to remedy above deficiency, the utility model provides a kind of injection device of multiple extruding, and the injection device of this multiple extruding can the real-time ensuring discharging spray the critical condition that intracavity liquid is in injection, the shaped article smooth surface, and size is accurate.
The utility model for the technical scheme that solves its technical problem and adopt is: a kind of injection device of multiple extruding, comprise ejectisome, the transition body, feed bin, piezoelectric vibration mechanism, the feed pressure device, shower nozzle, heater element and temperature control device, be provided with vertical discharging spray chamber in the described ejectisome, discharging spray chamber lower end is provided with jet pipe, discharging spray chamber top intersects with at least one charging spray chamber and is communicated with, piezoelectric vibration mechanism can the extensional vibration sealing be inserted in inside, discharging spray chamber upper end, the inner feed bin that is formed for holding raw material in transition body upper end, feed bin is communicated with the charging spray chamber, the feed pressure device is located in the feed bin, the feed pressure device can make the raw material of molten state in the discharging spray chamber keep the critical condition of stress balance, ejectisome and transition body sidewall are provided with heater element and the temperature control device that is used to guarantee the raw materials melt state, and temperature control device can be responded to into, material temperature and control heater spare work in the discharging spray chamber.
Further improvement as utility model, described feed pressure device comprises servomotor, lead screw transmission pair, piston and controller, described controller control servomotor rotates, the leading screw rotation of driven by servomotor lead screw transmission pair, leading screw can drive the screw rotation of lead screw transmission pair, screw and piston are connected, and piston is inserted in the feed bin, end face on the raw material in the piston lower surface contact feed bin.
Further improvement as utility model, described piezoelectric vibration mechanism comprises piezo-electric crystal, piezo-electric crystal support, piezo-electric crystal vibrating arm and piezo-electric crystal vibration head, described piezo-electric crystal support is fixed on the ejectisome, piezo-electric crystal is fixed on the piezo-electric crystal support, piezo-electric crystal and piezo-electric crystal vibrating arm one end are connected, the piezo-electric crystal vibrating arm other end and piezo-electric crystal vibration head are connected, and the movable sealing of piezo-electric crystal vibration head is inserted in the discharging spray chamber.
As the further improvement of utility model, the quantity of described charging spray chamber is two, is symmetrically distributed in radially both sides of discharging spray chamber.
As the further improvement of utility model, described charging spray chamber is communicated with the square crossing of discharging spray chamber.
As the further improvement of utility model, be evenly distributed with heating chamber respectively on described ejectisome lower sides and the transition body lower end sidewall, be provided with heating rod in the heating chamber.
As the further improvement of utility model, described temperature control device comprises temperature sensor and controller, and described temperature sensor is fixed on ejectisome and the transition body lower sides, and sensor is messaging in controller, the work of controller control heater spare.
As the further improvement of utility model, described feed bin lower end is communicated with the charging spray chamber of ejectisome by passage.
As the further improvement of utility model, establish thermal insulation layer on the feed bin lower end sidewall of described transition body.
As the further improvement of utility model, establish radiator on the feed bin sidewall of described transition body He on the piezo-electric crystal rack side wall.
Useful technique effect of the present utility model is: the utility model can guarantee that the raw material of molten state in the spray chamber are in critical condition all the time, guarantee that it all is the vibrating arm vibration control that the interior drop injection control of jet pipe is, guaranteed that the jet pipe dropping liquid sprays accurate real-time, do not have delay and hydrostomia phenomenon, thereby guaranteed the high accuracy and the high fairing degree of formed product.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present utility model.
The specific embodiment
Embodiment: a kind of injection device of multiple extruding comprises ejectisome 11, mistake
Cross body 8, feed bin 5, piezoelectric vibration mechanism, the feed pressure device, shower nozzle 14, heater element and temperature control device, be provided with vertical discharging spray chamber 16 in the described ejectisome 11, discharging spray chamber 16 lower ends are provided with jet pipe, discharging spray chamber 16 tops intersect with at least one charging spray chamber and are communicated with, piezoelectric vibration mechanism can the extensional vibration sealing be inserted in inside, discharging spray chamber 16 upper end, inside, transition body 8 upper end is formed for holding the feed bin 5 of raw material, feed bin 5 is communicated with the charging spray chamber, the feed pressure device is located in the feed bin 5, the feed pressure device can make the raw material of molten state in the discharging spray chamber 16 keep the critical condition of stress balance, ejectisome 11 and transition body 8 sidewalls are provided with heater element and the temperature control device that is used to guarantee the raw materials melt state, temperature control device can be responded to into, material temperature and control heater spare work in the discharging spray chamber 16, raw material is put into feed bin 5, raw material is heated to form molten condition through heater element and enters into, in the discharging spray chamber 16, the feed pressure device keeps the feed pressure of the molten condition in the discharging spray chamber 16 to be in critical condition (the molten state raw material that is the jet pipe place is in the critical condition that will drip and not have drippage) constantly, when the needs jet pipe sprays, the vibration that takes orders of piezoelectric vibration mechanism, melt to drip and in jet pipe, drip, vibrating mechanism has sealed the interface channel between charging spray chamber and the discharging spray chamber 16 simultaneously, when not needing to spray, piezoelectric vibration mechanism takes orders and stops vibration, the discharging playpipe is communicated with one section negative pressure of position generation and just the raw material suction of molten state in the feed injection is replenished into the charging spray chamber, the molten state feed pressure are passed through in the discharging spray chamber 16.
Described feed pressure device comprises servomotor 1, lead screw transmission pair 2, piston 4 and controller, described controller control servomotor 1 rotates, servomotor 1 drives the leading screw rotation of lead screw transmission pair 2, leading screw can drive the screw rotation of lead screw transmission pair 2, screw and piston 4 are connected, piston 4 is inserted in the feed bin 5, piston 4
End face on the raw material in the lower surface contact feed bin 5, by the raw material in rotation of motor-driven screw mandrel and then the drive piston 4 motion extruding feed bins 5, provide ambient pressure to raw material, and this pressure can be regulated in real time by the motor rotation, guarantee that discharging spray chamber 16 interior raw materials are in the critical condition of injection all the time, the discharging of assurance jet pipe is controlled by piezoelectric vibration mechanism fully, make the jet pipe discharging promptly and accurately, providing and regulating of ambient pressure can also be by other structure realization, connect the air pressure feedway that air pressure can be regulated as feed hopper 5, perhaps realize piston 4 advance and retreat etc. by the motor driven gear rackwork, all being those skilled in the art is equal to the replacement structure according to what this patent was easy to expect.
Described piezoelectric vibration mechanism comprises piezo-electric crystal 3, piezo-electric crystal support 24, piezo-electric crystal vibrating arm 23 and piezo-electric crystal vibration head 21, described piezo-electric crystal support 24 is fixed on the ejectisome 11, piezo-electric crystal 3 is fixed on the piezo-electric crystal support 24, piezo-electric crystal 3 is connected with piezo-electric crystal vibrating arm 23 1 ends, piezo-electric crystal vibrating arm 23 other ends and piezo-electric crystal vibration head 21 are connected, 21 movable sealings of piezo-electric crystal vibration head are inserted in the discharging spray chamber 16, piezo-electric crystal 3 is subjected to electric field controls and then drives 23 vibrations of piezo-electric crystal vibrating arm, piezo-electric crystal vibrating arm 23 is indulged and is finished a pulsed vibration, jet pipe just sprays one and melts and drip 15,2323 adjustment such as member such as grade of piezo-electric crystal vibrating arm can be passed through in home position during not the vibrating of piezo-electric crystal vibration head 21, make its be in the cross connection duct on, in or following different position.
The quantity of described charging spray chamber is two, is symmetrically distributed in radially both sides of discharging spray chamber 16, and two-way charging guarantees the raw material supply of raw material supply abundance or different cultivars.
Described charging spray chamber is communicated with 16 square crossings of discharging spray chamber.
Even respectively on described ejectisome 11 lower sides and the transition body 8 lower end sidewalls
Be distributed with heating chamber 19, be provided with heating rod 10 in the heating chamber 19.
Described temperature control device comprises temperature sensor 9 and controller, and described temperature sensor 9 is fixed on ejectisome 11 and transition body 8 lower sides, and nontoxic sensor 9 is messaging in controller, the work of controller control heater spare.
Described feed bin 5 lower ends are communicated with the charging spray chamber of ejectisome 11 by passage.
Establish thermal insulation layer 7 on the feed bin 5 lower end sidewalls of described transition body 8, avoid raw material over hot melting in the feed bin 5.
Establish radiator 22 on feed bin 5 sidewalls of described transition body 8 He on piezo-electric crystal support 24 sidewalls, avoid its heat damage.
Claims (10)
1. the injection device of a multiple extruding, it is characterized in that: comprise ejectisome (11), transition body (8), feed bin (5), piezoelectric vibration mechanism, the feed pressure device, shower nozzle (14), heater element and temperature control device, be provided with vertical discharging spray chamber (16) in the described ejectisome, discharging spray chamber lower end is provided with jet pipe, discharging spray chamber top intersects with at least one charging spray chamber and is communicated with, piezoelectric vibration mechanism can the extensional vibration sealing be inserted in inside, discharging spray chamber upper end, the inner feed bin that is formed for holding raw material in transition body upper end, feed bin is communicated with the charging spray chamber, the feed pressure device is located in the feed bin, the feed pressure device can make the raw material of molten state in the discharging spray chamber keep the critical condition of stress balance, ejectisome and transition body sidewall are provided with heater element and the temperature control device that is used to guarantee the raw materials melt state, and temperature control device can be responded to into, material temperature and control heater spare work in the discharging spray chamber.
2. the injection device of multiple extruding as claimed in claim 1, it is characterized in that: described feed pressure device comprises servomotor (1), lead screw transmission pair (2), piston (4) and controller, described controller control servomotor rotates, the leading screw rotation of driven by servomotor lead screw transmission pair, leading screw can drive the screw rotation of lead screw transmission pair, screw and piston are connected, and piston is inserted in the feed bin, end face on the raw material in the piston lower surface contact feed bin.
3. the injection device of multiple extruding as claimed in claim 1, it is characterized in that: described piezoelectric vibration mechanism comprises piezo-electric crystal (3), piezo-electric crystal support (24), piezo-electric crystal vibrating arm (23) and piezo-electric crystal vibration head (21), described piezo-electric crystal support is fixed on the ejectisome, piezo-electric crystal is fixed on the piezo-electric crystal support, piezo-electric crystal and piezo-electric crystal vibrating arm one end are connected, the piezo-electric crystal vibrating arm other end and piezo-electric crystal vibration head are connected, and the movable sealing of piezo-electric crystal vibration head is inserted in discharging and sprays
In the chamber.
4. the injection device of multiple extruding as claimed in claim 1, it is characterized in that: the quantity of described charging spray chamber is two, is symmetrically distributed in radially both sides of discharging spray chamber.
5. the injection device of multiple extruding as claimed in claim 1, it is characterized in that: described charging spray chamber is communicated with the square crossing of discharging spray chamber.
6. the injection device of multiple extruding as claimed in claim 1 is characterized in that: be evenly distributed with heating chamber (19) respectively on described ejectisome lower sides and the transition body lower end sidewall, be provided with heating rod (10) in the heating chamber.
7. the injection device of multiple extruding as claimed in claim 1, it is characterized in that: described temperature control device comprises temperature sensor (9) and controller, described temperature sensor is fixed on ejectisome and the transition body lower sides, sensor is messaging in controller, the work of controller control heater spare.
8. the injection device of multiple extruding as claimed in claim 1, it is characterized in that: described feed bin lower end is communicated with the charging spray chamber of ejectisome by passage.
9. as the injection device of claim 1 or 8 described multiple extruding, it is characterized in that: establish thermal insulation layer (7) on the feed bin lower end sidewall of described transition body.
10. the injection device of multiple extruding as claimed in claim 1 is characterized in that: establish radiator (22) on the feed bin sidewall of described transition body He on the piezo-electric crystal rack side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083985 CN203093045U (en) | 2013-02-25 | 2013-02-25 | Multi-extrusion injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083985 CN203093045U (en) | 2013-02-25 | 2013-02-25 | Multi-extrusion injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203093045U true CN203093045U (en) | 2013-07-31 |
Family
ID=48844485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320083985 Withdrawn - After Issue CN203093045U (en) | 2013-02-25 | 2013-02-25 | Multi-extrusion injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203093045U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002480A (en) * | 2013-02-25 | 2014-08-27 | 江苏永年激光成形技术有限公司 | Multiple extrusion ejection device |
| CN108621430A (en) * | 2018-05-02 | 2018-10-09 | 芜湖众梦电子科技有限公司 | A kind of heated type 3D printer extrusion nozzle |
-
2013
- 2013-02-25 CN CN 201320083985 patent/CN203093045U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002480A (en) * | 2013-02-25 | 2014-08-27 | 江苏永年激光成形技术有限公司 | Multiple extrusion ejection device |
| CN108621430A (en) * | 2018-05-02 | 2018-10-09 | 芜湖众梦电子科技有限公司 | A kind of heated type 3D printer extrusion nozzle |
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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 |
Granted publication date: 20130731 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |