CN104476920A - Printing head of high-precision miniature industrial printer - Google Patents
Printing head of high-precision miniature industrial printer Download PDFInfo
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- CN104476920A CN104476920A CN201410755686.5A CN201410755686A CN104476920A CN 104476920 A CN104476920 A CN 104476920A CN 201410755686 A CN201410755686 A CN 201410755686A CN 104476920 A CN104476920 A CN 104476920A
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- plinth
- spool
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- valve
- core valve
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Abstract
The invention discloses a printing head of a high-precision miniature industrial printer. An RS232 interface is connected with a PCB (printed circuit board) through a 9-core composite cable wire, the PCB is connected with a printing head coil wound on a core valve, a valve sleeve sleeves outside the valve core, one end of a regulating shaft is placed inside the valve sleeve, the other end of the regulating shaft is tightly attached to a special-shaped stud, the special-shaped stud is arranged on a fixing seat in a mode through screw threads, a position between a tail end opening of the valve sleeve and the regulating shaft is sealed through a rubber tie, a conical spring is wound on the head part of the front end of a core valve, the head part of the core valve is in contact with a spray nozzle opening of the spray nozzle, a main body seat is fixedly arranged at the opening part of the front end of a case, a spray nozzle is arranged on a spray nozzle plate, a cavity is formed between the main body seat and the spray nozzle plate, and the cavity is communicated with ink supply equipment through a liquid guide joint and a plastic pipe. The printing head of the high-precision miniature industrial printer has the beneficial effects that the service life of the printing head is long, and the damage cannot easily occur.
Description
Technical field
The invention belongs to printer technology field, relate to a kind of high-precision micro industrial printer printhead.
Background technology
Existing Industrial Printing head carries out print job under the severe on-the-spot environment of high burn into height dust, easily occurs blocking, ink dot deflection, and residual prepared Chinese ink is in phenomenons such as injection hole surface.And printhead is after the valve opening; it is large that ink enters black chamber flowing stroke; motion spool and valve pocket length of fit long; friction is large, so just consumes a large amount of energy, and effective printing distance of printhead is also very short; the probability of print hole blocking is very large; the present invention is exactly to overcome above-mentioned problem, thus ensures that sprayed printed system runs in extremely rugged environment normal table, the power generating ratio time.
Summary of the invention
The object of the present invention is to provide a kind of high-precision micro industrial printer printhead, solve existing printer consumed energy large, and hold flimsy problem.
The technical solution adopted in the present invention comprises shell, shell rear portion is provided with RS232 interface, RS232 interface is by 9 core compound electric cable connection PCB circuit boards, between the holder that PCB fixes near middle in the enclosure and the main body base of housing front, PCB connects the printhead coil of below, to printhead coil power supply, printhead coil is wrapped on core valve, core valve outer cover has valve pocket, one end of regulating shaft is placed in the valve pocket of core valve 8 rear end, the other end of regulating shaft is close to special-shaped stud, abnormity stud is threadedly arranged on holder, sealed by rubber tie between valve pocket distal opening and regulating shaft, abnormity stud is used for regulating the displacement of core valve, core valve leading head is tied with volute spring, volute spring two ends withstand on core valve head and main body base respectively, core valve head contacts with the jet hole of nozzle, when electromagnetic force drives core valve to move backward, compression volute spring, core valve afterbody withstands on regulating shaft, core valve head leaves jet hole one segment distance, now ink sprays from jet hole, when electromagnetic force disappears, volute spring recovers elastic force, promote core valve head contact nozzle mouth, prevent ink from spraying jet hole sealing, main body base is fixed on case nose opening portion, nozzle is installed on the nozzle plate, main body base and nozzle plate and between form a cavity, core valve head and volute spring are positioned at cavity, cavity is communicated with plastic tube by drawing liquid joint, plastic tube is inserted to chew by hydraulic quick coupler and is connected external ink supply equipment, ambient pressure ink enters in the cavity of main body base by plastic tube to drawing liquid joint, main body base is connected with nozzle plate, by the elastic force of volute spring, poppet head is withstood jet hole, make it sealing, when poppet head leaves jet hole under the action of a magnetic force, pressure ink is sprayed by jet hole, form ink dot.
Further, described hydraulic quick coupler is inserted to chew and is comprised plinth, plinth inside is cavity, two ends are the tubular opening stretched out, both ends open forms with internal cavities the passage be communicated with, plinth one end is stretched in the opening of plastic tube, spring is placed with in the cavity of plinth, plinth spool stretches into contact spring from the other end of plinth, the part cover that plinth spool stretches in plinth cavity has sealing ring, plinth valve core inside is that cavity connects outside inking equipment, cavities open is at spool face and after being positioned at sealing ring, when spring stretches naturally, spool is stretched into part to extrapolation, make the open-ended of sealing ring close contact plinth, such spool and sealing ring are by the open-ended sealing of plinth, ink now in spool cavity can not flow in the internal cavities of plinth, when needs inking, spool is inwardly pushed away by external equipment, Compress Spring, now open-ended away from plinth of sealing ring, the cavities open of plinth spool stretches in the internal cavities of plinth, now ink will be filled with into cavity, flow into along plastic tube.
Further, described nozzle adopts
3*1.5 independent counter sink embedding gem.
Further, described special-shaped stud is connected interference fit with regulating shaft.
Further, described rubber tie and regulating shaft interference fit seal.
Further, described printhead coil is wrapped up by the guard shield of outside, and guard shield plays and shields and strengthen the effect in magnetic field.
The invention has the beneficial effects as follows that print head longevity is long, be not easy to damage.
Accompanying drawing explanation
Fig. 1 is a kind of high-precision micro industrial printer of the present invention printhead side structure schematic diagram;
Fig. 2 is plan structure schematic diagram of the present invention;
Fig. 3 is part A enlarged diagram in Fig. 1 of the present invention.
In figure, 1. shell, 2.RS232 interface, 3.9 core compound electric cables, 4.PCB circuit board, 5. holder, 6. main body base, 7. printhead coil, 8. core valve, 9. valve pocket, 10. regulating shaft, 11. special-shaped studs, 12. rubber ties, 13. volute springs, 14. nozzles, 15. nozzle plates, 16. draw liquid joint, 17. plastic tubes, and 18. hydraulic quick couplers are inserted and chewed, 1801. plinths, 1802. springs, 1803. plinth spools, 1804. sealing rings.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in detail.
High-precision micro industrial printer printhead of the present invention as depicted in figs. 1 and 2, comprise shell 1, shell 1 rear portion is provided with RS232 interface 2, RS232 interface 2 is by 9 core compound electric cable 3 connection PCB circuit boards 4, PCB 4 is fixed between the holder 5 of near middle in shell 1 and the main body base 6 of shell 1 front portion, PCB 4 connects the printhead coil 7 of below, power to printhead coil 7, printhead coil 7 is wrapped on core valve 8, the instruction of Industrial Printing machine controller sends drive singal, signal inputs to printhead coil 7 by 9 core compound electric cables 3, the inductance coil of printhead coil 7 produces magnetic field, promote spool 8 to move.
Core valve 8 outer cover has cover 9, one end of regulating shaft 10 is placed in cover 9 inside of core valve 8 rear end, the other end of regulating shaft 10 is close to special-shaped stud 11, abnormity stud 11 is threadedly arranged on holder 5, overlap between 9 distal opening and regulating shaft 10 and sealed by rubber tie 12, special-shaped stud 11 is used for regulating the displacement of core valve 8.Abnormity stud 11 is connected interference fit with regulating shaft 10.Rubber tie 12 and regulating shaft 10 interference fit seal.Be illustrated in figure 3 the enlarged drawing of part A in Fig. 1, core valve 8 leading head is tied with volute spring 13, volute spring 13 two ends withstand on core valve 8 head and main body base 6 respectively, core valve 8 head contacts with the jet hole of nozzle 14, when electromagnetic force drives core valve 8 to move backward, compression volute spring 13, core valve 8 afterbody withstands on regulating shaft 10, core valve 8 head leaves jet hole one segment distance, now ink sprays from jet hole, and when electromagnetic force disappears, volute spring 13 recovers elastic force, promote core valve 8 head contact jet hole, prevent ink from spraying jet hole sealing;
Main body base 6 is fixed on shell 1 front end opening, nozzle 14 is arranged on nozzle plate 15, main body base 6 and nozzle plate 15 and between form a cavity, core valve 8 head and volute spring 13 are positioned at cavity, cavity is communicated with plastic tube 17 by drawing liquid joint 16, plastic tube 17 is inserted by hydraulic quick coupler and is chewed 18 connection external ink supply equipments, ambient pressure ink enters in the cavity of main body base 6 by plastic tube 17 to drawing liquid joint 16, main body base 6 is connected with nozzle plate 15, by the elastic force of volute spring 13, spool 8 head is withstood jet hole, make it sealing, make the internal cavities of printhead maintain the ink of pressure so always, when spool 8 head leaves jet hole under the action of a magnetic force, pressure ink is sprayed by jet hole, form ink dot.Industrial Printing machine controller controls the action of printhead coil 7, makes it to form required character ink dot.Printhead coil 7 is wrapped up by the guard shield 22 of outside, and guard shield 22 plays and shields and strengthen the effect in magnetic field.
Wherein, hydraulic quick coupler is inserted and is chewed 18 and can use ordinary couplings, the hydraulic quick coupler of the present invention's design is inserted and is chewed 18 and be: comprise plinth 1801, plinth 1801 inside is cavity, two ends are the tubular opening stretched out, both ends open forms with internal cavities the passage be communicated with, plinth 1801 one end is stretched in the opening of plastic tube 17, spring 1802 is placed with in the cavity of plinth 1801, plinth spool 1803 stretches into contact spring 1802 from the other end of plinth 1801, the part cover that plinth spool 1803 stretches in plinth 1801 cavity has sealing ring 1804, plinth spool 1803 is inner connects outside inking equipment for cavity, cavities open is on spool 1803 surface and after being positioned at sealing ring 1804,
When spring 1802 stretches naturally, spool 1803 is stretched into part to extrapolation, make the open-ended of sealing ring 1804 close contact plinth 1801, such spool 1803 and sealing ring 1804 are by the open-ended sealing of plinth 1801, ink now in spool 1803 cavity can not flow in the internal cavities of plinth 1801, when needs inking, spool 1803 is inwardly pushed away by external equipment, Compress Spring 1802, now open-ended away from plinth 1801 of sealing ring 1804, the cavities open of plinth spool 1803 stretches in the internal cavities of plinth 1801, now ink will be filled with into cavity, flow into along plastic tube 17.
In the present invention, nozzle 14 adopts
3*1.5 independent counter sink embedding gem.Printhead of the present invention can arrange multiple, only needs to arrange corresponding equipment.
Advantage of the present invention mainly contain following some:
1. the advantage of volute spring 13: other code spraying machine shower nozzle back-moving springs domestic all adopt cylindrical helical spring, and easily lost efficacy, cylindrical spring and spool are matched in clearance, cylindrical spring and spool disalignment bias, cause effective energy loss, flog a dead horse.Shower nozzle volute spring 13 of the present invention adopts oval section volute spring to design, and volute spring 13 makes valve opening more quick, resets more rapidly accurately.Be conducive to eliminating and relax resonance, compact conformation, good stability.Small end and core valve 8 major diameter fit more surely close, and large end is accurately fixed on main body base 6, and does not have unsettled phenomenon, and effective guarantee works each time and accurately puts in place, and not deflection, greatly reduces energy loss, and reset accurately and reliably, stability is higher.
2. effectively shorten hron spacing, other sprinkler core valve total lengths are all at more than 30mm, and hron spacing is all at 7-15mm, and motion parts coordinates more than section 20mm, and the loss of frictional resistance macro-energy is serious.The design's core valve 8 overall length 13mm, within hron spacing can be as short as 3.5mm, within motion coordinates section to be as short as 10mm, effectively reduce frictional resistance, reduce energy loss, decrease and cause rigidity too poor because cantilever is oversize, easily eccentric, the oversize equilibrium condition poor stability of cantilever, in identical load transmission, cantilever design axle is more long more easily produces mechanical fatigue, and this design makes motion sensitiveer, precisely, and be not easy to cause damage.
3. sealing, existing nozzle set and regulating shaft adopt wide arc gap gluing to seal or O type circle seals, and gluing sealed-regulating valve stroke bothers, easy ink leak during O type circle sealed-regulating valve stroke.Valve pocket 9 of the present invention adopts minim gap to coordinate with regulating shaft 10, additional overall rubber tie 12, and by rubber tie 12 and regulating shaft 10 interference fit seal, good airproof performance and easy to adjust, safeguards more convenient.
4. magnetic valve Traffic control system: existing shower nozzle O type circle sealing thread regulates, and easily causes O type circle to rotate together during adjustment, makes it damaged and leaks.Another sleeve pipe internal fixtion spool cementation, by adjusting sleeve pipe, sleeve pipe is threaded with black groove gluing, and because sleeve pipe is thin-wall part, screw thread place wall thickness 0.2mm, very easily revolves disconnected sleeve pipe during adjustment, or causes sleeve pipe spool viscose to come off leakage.Above structure all needs professional tool to adjust.The present invention adopts special-shaped stud 11 to be connected interference fit with regulating shaft 10, is support by holder 5, and during adjustment, abnormity stud 11 rotates and formed and move axially, and not have the problem sealing and leak, adjustment more flexibly and easily, without the need to specific purpose tool and adjustable.
5. jewel nozzles 14 longer service life, ink dot fracture is more perfect, and gemstone surface not easily long-pending ink makes the more mellow and fuller exquisiteness of spray printing ink dot.The adhesion of jewel to liquid is little, not easily blocks, and the adhesion of metal pair liquid is large, easily blocking microporous.
6. core valve 8 and regulating shaft 10 adopt high-quality magnetic property material, high saturated magnetic induction, low residual magnetic flux density, and corrosion-resistant.Magnetic moment demagnetization can be gone up instantaneously, the features such as remanent magnetism is little.About 100,000,000 times of printhead core valve work in the market.The present invention adopts the core valve 8 of high-quality magnetic property material can up to the work of 1,000,000,000 times, and fast response time meets the operating rate of 300 meters per minute.
7. print-head nozzle 14 quantity can a hole combination arbitrarily.Only need setting position on nozzle plate 15, compact overall structure of the present invention, it is firm to connect, and antidetonation is anti-falls, small volume and less weight.
The above is only to better embodiment of the present invention, not any pro forma restriction is done to the present invention, every any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (6)
1. a high-precision micro industrial printer printhead, it is characterized in that: comprise shell (1), shell (1) rear portion is provided with RS232 interface (2), RS232 interface (2) is by 9 core compound electric cable (3) connection PCB circuit boards (4), PCB (4) is fixed between the holder (5) of shell (1) interior near middle and the main body base (6) of shell (1) front portion, PCB (4) connects the printhead coil (7) of below, power to printhead coil (7), printhead coil (7) is wrapped on core valve (8), core valve (8) outer cover has valve pocket (9), one end of regulating shaft (10) is placed in the valve pocket (9) of core valve (8) rear end, the other end of regulating shaft (10) is close to special-shaped stud (11), abnormity stud (11) is threadedly arranged on holder (5), sealed by rubber tie (12) between valve pocket (9) distal opening and regulating shaft (10), abnormity stud (11) be used for regulate core valve (8) displacement, core valve (8) leading head is tied with volute spring (13), volute spring (13) two ends withstand on core valve (8) head and main body base (6) respectively, core valve (8) head contacts with the jet hole of nozzle (14), when electromagnetic force drives core valve (8) to move backward, compression volute spring (13), core valve (8) afterbody withstands on regulating shaft (10), core valve (8) head leaves jet hole one segment distance, now ink sprays from jet hole, when electromagnetic force disappears, volute spring (13) recovers elastic force, promote core valve (8) head contact jet hole, prevent ink from spraying jet hole sealing, main body base (6) is fixed on shell (1) front end opening, nozzle (14) is arranged on nozzle plate (15), main body base (6) and nozzle plate (15) and between form a cavity, core valve (8) head and volute spring (13) are positioned at cavity, cavity is communicated with plastic tube (17) by drawing liquid joint (16), plastic tube (17) is inserted by hydraulic quick coupler and is chewed (18) connection external ink supply equipment, ambient pressure ink enters in the cavity of main body base (6) by plastic tube (17) to drawing liquid joint (16), main body base (6) is connected with nozzle plate (15), by the elastic force of volute spring (13), spool (8) head is withstood jet hole, make it sealing, when spool (8) head leaves jet hole under the action of a magnetic force, pressure ink is sprayed by jet hole, form ink dot.
2. according to high-precision micro industrial printer printhead a kind of described in claim 1, it is characterized in that: described hydraulic quick coupler is inserted and chewed (18) and comprise plinth (1801), plinth (1801) inside is cavity, two ends are the tubular opening stretched out, both ends open forms with internal cavities the passage be communicated with, plinth (1801) one end is stretched in the opening of plastic tube (17), spring (1802) is placed with in the cavity of plinth (1801), plinth spool (1803) stretches into contact spring (1802) from the other end of plinth (1801), plinth spool (1803) the part cover stretched in plinth (1801) cavity has sealing ring (1804), plinth spool (1803) is inner connects outside inking equipment for cavity, cavities open is on spool (1803) surface and after being positioned at sealing ring (1804), when spring (1802) stretches naturally, spool (1803) is stretched into part to extrapolation, make the open-ended of sealing ring (1804) close contact plinth (1801), such spool (1803) and sealing ring (1804) are by the open-ended sealing of plinth (1801), ink now in spool (1803) cavity can not flow in the internal cavities of plinth (1801), when needs inking, spool (1803) is inwardly pushed away by external equipment, Compress Spring (1802), now open-ended away from plinth (1801) of sealing ring (1804), the cavities open of plinth spool (1803) stretches in the internal cavities of plinth (1801), now ink will be filled with into cavity, flow into along plastic tube (17).
3. according to high-precision micro industrial printer printhead a kind of described in claim 1, it is characterized in that: described nozzle (14) adopts
independent counter sink embedding gem.
4. according to high-precision micro industrial printer printhead a kind of described in claim 1, it is characterized in that: described special-shaped stud (11) is connected interference fit with regulating shaft (10).
5. according to high-precision micro industrial printer printhead a kind of described in claim 1, it is characterized in that: described rubber tie (12) and regulating shaft (10) interference fit seal.
6. according to high-precision micro industrial printer printhead a kind of described in claim 1, it is characterized in that: described printhead coil (7) is wrapped up by the guard shield (22) of outside, guard shield (22) plays and shields and strengthen the effect in magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755686.5A CN104476920B (en) | 2014-12-10 | 2014-12-10 | A kind of high-precision micro industrial printer printhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755686.5A CN104476920B (en) | 2014-12-10 | 2014-12-10 | A kind of high-precision micro industrial printer printhead |
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| Publication Number | Publication Date |
|---|---|
| CN104476920A true CN104476920A (en) | 2015-04-01 |
| CN104476920B CN104476920B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410755686.5A Active CN104476920B (en) | 2014-12-10 | 2014-12-10 | A kind of high-precision micro industrial printer printhead |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270842A (en) * | 2008-04-23 | 2008-09-24 | 宁波中迪机械有限公司 | Self-sealing joint |
| CN201141494Y (en) * | 2007-12-05 | 2008-10-29 | 东风精密铸造有限公司 | Fast socket tube joint |
| US20130002775A1 (en) * | 2011-06-28 | 2013-01-03 | Ricoh Company, Ltd. | Image forming apparatus including recording head for ejecting liquid droplets |
| CN203381345U (en) * | 2013-06-14 | 2014-01-08 | 北京康迪电子设备有限公司 | Jetting head of large-character ink jet printer |
| CN203697705U (en) * | 2014-01-23 | 2014-07-09 | 广州易达包装设备有限公司 | Spray nozzle for non-contact type large character inkjet printer |
| CN204340387U (en) * | 2014-12-10 | 2015-05-20 | 福州聚众鑫电子科技有限公司 | A kind of high-precision micro industrial printer printhead |
-
2014
- 2014-12-10 CN CN201410755686.5A patent/CN104476920B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201141494Y (en) * | 2007-12-05 | 2008-10-29 | 东风精密铸造有限公司 | Fast socket tube joint |
| CN101270842A (en) * | 2008-04-23 | 2008-09-24 | 宁波中迪机械有限公司 | Self-sealing joint |
| US20130002775A1 (en) * | 2011-06-28 | 2013-01-03 | Ricoh Company, Ltd. | Image forming apparatus including recording head for ejecting liquid droplets |
| CN203381345U (en) * | 2013-06-14 | 2014-01-08 | 北京康迪电子设备有限公司 | Jetting head of large-character ink jet printer |
| CN203697705U (en) * | 2014-01-23 | 2014-07-09 | 广州易达包装设备有限公司 | Spray nozzle for non-contact type large character inkjet printer |
| CN204340387U (en) * | 2014-12-10 | 2015-05-20 | 福州聚众鑫电子科技有限公司 | A kind of high-precision micro industrial printer printhead |
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| CN104476920B (en) | 2017-06-20 |
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