CN208946884U - A kind of nozzle protecting device - Google Patents
A kind of nozzle protecting device Download PDFInfo
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- CN208946884U CN208946884U CN201821302802.8U CN201821302802U CN208946884U CN 208946884 U CN208946884 U CN 208946884U CN 201821302802 U CN201821302802 U CN 201821302802U CN 208946884 U CN208946884 U CN 208946884U
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- smooth
- protecting layer
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Abstract
The utility model provides a kind of nozzle protecting device, solves that existing print head structure is unreasonable so that the technical issues of spray head interference susceptible to static electricity and physical damage.Device includes: conductive protecting layer, is used to form the isolation support of the jeting area around print head and water conservancy diversion electrostatic charge；Insulating layer, for forming the buffer layer between the conductive protecting layer and the print head around the jeting area.It is formed that the interval support of spray head is avoided that directly impact force being directly conducted on spray head using conductive protecting layer and avoids direct physical damage, combining the electrostatic charge aggregation formed to avoid bearing medium with earthed circuit by conductive protecting layer reduces interference caused by electrostatic and destroy.Insulating layer effectively improves the damping of shocks ability of conductive protecting layer and the aggregation position of electrostatic charge is avoided to the negative effect of electrostatic from nozzle position to backseat transfer, and the diversity material for further adapting to bearing medium is constituted.
Description
Technical field
The utility model relates to print head technical fields, and in particular to a kind of nozzle protecting device.
Background technique
In the prior art, the quick output of large format advertisement poster is realized using inkjet printing mode.In order to guarantee to print matter
The piezo jets that ink jet printing device print head is equipped with are measured to need to carry out complicated daily maintenance and protection.Daily maintenance includes pair
The stability of operating voltage adjusts, the cleaning of spray head permeability, and the compliance replacement of marking ink, protection includes electrostatic protection and spray
Head protection.Excessively dry working environment can generate a large amount of electrostatic, directly contribute the damage of spray head circuit, and in ink-jet bearing medium
A large amount of electrostatic damages can be also generated when including plastic-based material such as PP (polypropylene), gum medium in (i.e. printing paper or similar sheet)
Spray head causes impurity accumulation to cause spray head blocking damage.Nozzle surface material usually by fine silicon substrate, high molecular material or
Stainless steel material is formed, and nozzle surface intensity is fragile, and frequently physical contact will cause the damage of spray head, such as since paper etc. is situated between
The metal aperture piece that matter alice scratches print head bottom in print procedure causes printhead orifice damage can not normal ink-jet.
Utility model content
In view of the above problems, the utility model embodiment provides a kind of nozzle protecting device, solves existing print head structure
It is unreasonable so that spray head interference susceptible to static electricity and the technical issues of physical damage.
The nozzle protecting device of the utility model embodiment, comprising:
Conductive protecting layer is used to form the isolation support of the jeting area around print head and water conservancy diversion electrostatic charge；
Insulating layer, for forming the buffer layer between the conductive protecting layer and the print head around the jeting area.
In an embodiment of the present invention, the ink-jet end face of the conductive protecting layer, the insulating layer and the print head
Sequence is combined closely, and smooth through-bore is opened up on the conductive protecting layer, the smooth through-bore is corresponding with the jeting area position.
In an embodiment of the present invention, conductive protecting layer both ends described in the transmission direction along ink-jet bearing medium are relatively curved
It rolls over, printhead side walls described in fixed clamp, the conductive protecting layer is connect with the earthed circuit of the print head.
In an embodiment of the present invention, the conductive protecting layer uses fourth using no nonmagnetic electrically conductive material, the insulating layer
Fine rubber or silica gel thin film.
In an embodiment of the present invention, the adjacent surface of the conductive protecting layer and the ink-jet end face is formed continuously
Convex-concave surface.
In an embodiment of the present invention, the convex-concave surface includes parallel fin and groove, the fin and groove
Extending direction it is consistent with the transmission direction of ink-jet bearing medium.
In an embodiment of the present invention, around the smooth through-bore in the conductive protecting layer and the ink-jet end face
Corresponding part opens up several in conjunction with through-hole, and the insulating layer forms insulation protrusion, and the insulation protrusion protrudes into adjacent combination
It is formed and is combined closely in through-hole.
In an embodiment of the present invention, the combination through-hole is at least divided into two groups of axis directions.
In an embodiment of the present invention, in the corresponding part bottom of the conductive protecting layer and the ink-jet end face, edge
The transmission direction of ink-jet bearing medium forms the sunk area of depth consecutive variations.
In an embodiment of the present invention, the first sunk area is set in the front of the smooth through-bore, described first is recessed
The rear sidewall for falling into region is connected to the smooth-sided of the smooth through-bore, and the recess width of first sunk area gradually increases
Greatly, cup depth gradually increases, and/or
The smooth through-bore rear be arranged the second sunk area, the front side wall of second sunk area with it is described
The smooth-sided of smooth through-bore is connected to, and the recess width is gradually reduced, and cup depth gradually decreases, or
It further include several water conservancy diversion through slots, the stream in the corresponding part bottom of the conductive protecting layer Yu the ink-jet end face
The fan-shaped distribution of through slot, the front end of the water conservancy diversion through slot are connected to second sunk area, the rear end of the water conservancy diversion through slot with
The corresponding part bottom margin connection.
The nozzle protecting device of the utility model embodiment is formed using conductive protecting layer and is avoided to the interval support of spray head
Directly impact force is directly conducted on spray head and avoids direct physical damage, is combined by conductive protecting layer with earthed circuit
Interference caused by electrostatic is reduced to avoid the electrostatic charge aggregation that bearing medium is formed and is destroyed.Insulating layer, which effectively improves, leads
The aggregation position of electrostatic charge is simultaneously avoided electrostatic from nozzle position to backseat transfer by the damping of shocks ability of electrical protection
Negative effect, further adapt to bearing medium diversity material constitute.
Detailed description of the invention
Fig. 1 show the main view schematic cross-sectional view of the utility model embodiment nozzle protecting device primary structure.
Fig. 2 show the main view schematic cross-sectional view of an embodiment of the present invention nozzle protecting device structure.
Fig. 3 show the main view schematic cross-sectional view of another embodiment nozzle protecting device structure of the utility model.
Fig. 4 show the elevational schematic view of another embodiment nozzle protecting device structure of the utility model.
Fig. 5 show the main view schematic cross-sectional view of the utility model another embodiment nozzle protecting device structure.
Fig. 6 show the elevational schematic view of the utility model another embodiment nozzle protecting device structure.
Specific embodiment
It is below in conjunction with attached drawing and specifically real to be clearer and more clear the purpose of this utility model, technical solution and advantage
Applying mode, the utility model is described in further detail.Obviously, described embodiment is only that the utility model a part is implemented
Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, fall within the protection scope of the utility model.
The nozzle protecting device of the utility model embodiment includes:
Conductive protecting layer is used to form the isolation support of the jeting area around print head and water conservancy diversion electrostatic charge；
Insulating layer, for forming the buffer layer between conductive protecting layer and print head around jeting area.
The nozzle protecting device of the utility model embodiment is formed using conductive protecting layer and is avoided to the interval support of spray head
Directly impact force is directly conducted on spray head and avoids direct physical damage, is combined by conductive protecting layer with earthed circuit
Interference caused by electrostatic is reduced to avoid the electrostatic charge aggregation that bearing medium is formed and is destroyed.Insulating layer, which effectively improves, leads
The aggregation position of electrostatic charge is simultaneously avoided electrostatic from nozzle position to backseat transfer by the damping of shocks ability of electrical protection
Negative effect, further adapt to bearing medium diversity material constitute.
The nozzle protecting device structure of the utility model embodiment as shown in Figure 1, as shown in Figure 1, print head 10 spray
Black end face (being bottom end face in attached drawing) is fixed with several piezo jets arranged in a matrix 11, and piezo jets 11 are in ink-jet end face
Upper formation jeting area 20.
Around jeting area 20, insulating layer 40 is set on ink-jet end face.
One conductive protecting layer 30, ink-jet end face, insulating layer 40 and the conductive protection of the print head 10 of sequence stacking are set
Layer 30 is combined closely.
Conductive protecting layer 30 is along the ink-jet end face that the transmission direction of ink-jet bearing medium is fixed on print head 10, in conduction
Smooth through-bore 31 is opened up on protective layer 30, smooth through-bore 31 is corresponding with 20 position of jeting area.
As shown in Figure 1, in an embodiment of the utility model, the conductive protection in the transmission direction along ink-jet bearing medium
Opposite bending 10 side wall of fixed clamp print head in 30 both ends of layer, conductive protecting layer 30 are connect with the earthed circuit of print head 10.
Specifically, conductive protecting layer 30 includes the first vertical plate 32, the second vertical plate 33 and smooth bottom plate 34, on smooth bottom plate 34
Open up smooth through-bore 31, the bottom of the first vertical plate 32 and the second vertical plate 33 is separately fixed at the transmission direction along ink-jet bearing medium
Smooth bottom plate 34 both ends, the first vertical plate 32 is parallel with the second vertical plate 33, between vertical plate spacing and the corresponding side wall of print head 10
Away from identical, smooth bottom plate 34 is corresponding with ink-jet end face, and the mode of the logical interference fit of print head 10 makes side wall be fixed on the first vertical plate
32 and second between vertical plate 33, and the joining place of the first vertical plate 32 and the second vertical plate 33 and smooth bottom plate 34 seamlessly transits.
In an embodiment of the utility model, conductive protecting layer 30 is using no nonmagnetic electrically conductive material, such as metal material, high score
Subbase material conductive material etc., preferably beryllium copper material.The preferred nitrile rubber material of insulating layer or silica gel thin film.
The nozzle protecting device of the utility model embodiment is by the ink-jet end face of print head 10, insulating layer 40 and conductive protection
Layer 30 forms composite intermediate layer, and ink-jet end face and 30 interlayer of conductive protecting layer are formed flexible buffer layer, while completely cutting off carrying and being situated between
The electrostatic charge of matter generation simultaneously utilizes the timely water conservancy diversion of conductive protecting layer.Conductive protecting layer 30 is connected using the conductive component of print head
Ground path simplifies electrostatic flow-guiding structure on the basis of guaranteeing to protect toughness.
On that basi of the above embodiments, a nozzle protecting device structure of the utility model embodiment is as shown in Figure 2.Such as figure
Shown in 2, the adjacent surface of conductive protecting layer 30 and ink-jet end face forms continuous convex-concave surface.
Specifically, parallel fin and groove, fin and groove are arranged at the top of the smooth bottom plate 34 of conductive protecting layer 30
Joining place and the side wall joining place of fin and groove seamlessly transit to form convex-concave surface 35.The extending direction of fin and groove
It is consistent with the transmission direction of ink-jet bearing medium.
The nozzle protecting device of the utility model embodiment improves the snubber elastomeric of conductive protecting layer 30 using convex-concave surface,
Vertical direction and the impact force of transmission direction buffering are rushed to weaken towards the elastic force of the transmission direction two sides of ink-jet bearing medium
Hit influence of the power to spray head.It can also be in the fixation of print head 10 and conductive protecting layer 30 using the elastic-restoring force of convex-concave surface
Formed in structure with the locked moment of elasticity of existing fixed end taken about the point of fixation, provide that composite intermediate layer is more stable to combine closely.
On that basi of the above embodiments, a nozzle protecting device structure such as Fig. 3 and Fig. 4 institute of the utility model embodiment
Show.In conjunction with Fig. 3 and Fig. 4, the corresponding part (on i.e. smooth bottom plate 34) in conductive protecting layer 30 Yu ink-jet end face leads to around smooth
Hole 31 opens up several in conjunction with through-hole 36, forms insulation protrusion 41 close to the bottom of insulating layer 40, insulation protrusion 41 protrudes into adjacent
Combination through-hole 36 in formed and combine closely.
The nozzle protecting device of the utility model embodiment forms insulating layer by insulation protrusion 41 and in conjunction with through-hole 36
With combining closely for conductive protecting layer 30.Simultaneously using the discrete distribution for combining through-hole 36 and insulation protrusion 41, destroy advantageous
In the capacitive character form of static focus, so that electrostatic distribution is more advantageous to electrostatic export.
In the utility model one embodiment, divide in conjunction with through-hole 36 for two parts, axis of the first part in conjunction with through-hole
The axis of through-hole is towards both direction in conjunction with second part.It is filled up completely in conjunction with through-hole 36 by insulation protrusion 41 or part is filled out
It fills.It, can be more in conjunction with the axis direction of through-hole 36 in the utility model one embodiment.
The nozzle protecting device of the utility model embodiment is conducive to adapt to ink-jet bearing medium in quick transmission to leading
The lasting shock of electrical protection 30 forms unstable collision frequency, avoids insulating layer 40 and conduction using the difference of axis direction
There are single resonance frequencies for the composite intermediate layer that protective layer 30 is formed, and reduce interference of the collision frequency to piezo jets working condition.
On that basi of the above embodiments, a nozzle protecting device structure such as Fig. 5 and Fig. 6 institute of the utility model embodiment
Show.Fig. 5 and Fig. 6 is engaged, in the corresponding part bottom of conductive protecting layer 30 Yu ink-jet end face, along the transmission side of ink-jet bearing medium
To the sunk area 50 for forming depth consecutive variations.
Specifically, the jeting area 20 of 30 bottom of conductive protecting layer front (i.e. the close direction of ink-jet bearing medium, it is attached
It is right side in figure) the first sunk area 51 of setting, at the rear of the jeting area 20 of 30 bottom of conductive protecting layer, (i.e. ink-jet is carried
The direction that medium is left away) the second sunk area 52 of setting, the rear sidewall of the first sunk area 51 and the side wall of smooth through-bore 31
Smooth connection, the front side wall of the second sunk area 52 are connected to the smooth-sided of smooth through-bore 31.
In the utility model one embodiment, the first sunk area 51 or the second sunk area 52 can be separately provided.
The nozzle protecting device of the utility model embodiment flows shape using the gas that sunk area improves jeting area 20
State, decay the wind energy formed by ink-jet bearing medium high-speed transfer, avoids impacting ink jet precision.
As shown in fig. 6, in an embodiment of the utility model, the first sunk area 51 includes the first blind hole 53, and first is blind
The width in hole 53 by front posteriorly (i.e. the close direction of ink-jet bearing medium leave away towards ink-jet bearing medium direction) by
Flaring is big, and the depth of the first blind hole 53 is posteriorly gradually increased by front, the rear sidewall and smooth through-bore 31 of the first blind hole 53
Smooth-sided connection.Increase area of section expansion air volume using the advantageous variation of width and depth and avoids the too fast shape of wind energy
At slowing down the growth rate of wind energy.
As shown in fig. 6, in an embodiment of the utility model, the second sunk area 52 includes the second blind hole 54, and second is blind
The width in hole 54 by front posteriorly (i.e. the close direction of ink-jet bearing medium leave away towards ink-jet bearing medium direction) by
Tapered small, the depth of the second blind hole 54 is posteriorly gradually decreased by front, the front side wall and smooth through-bore 31 of the second blind hole 54
Smooth-sided connection.Using the stability of width and the advantageous variation control air wind energy of depth, crosswind is inhibited to occur excessive
Random reflected avoid the formation of turbulent flow.
As shown in fig. 6, in an embodiment of the utility model, 30 bottom of conductive protecting layer further includes several water conservancy diversion through slots
55, the fan-shaped distribution of water conservancy diversion through slot 55, front end (i.e. the close direction of ink-jet bearing medium) and the second blind hole of water conservancy diversion through slot 55
54 (i.e. the second sunk areas) connection, the rear end (i.e. ink-jet bearing medium leave away direction) of water conservancy diversion through slot 55 and conductive protecting layer
The connection of 30 bottom margins.Water conservancy diversion through slot 55 weakens the reflection of wind energy while effectively making the variation of wind energy far from jeting area 20.
The spray head guard method of the utility model embodiment, comprising:
Insulating layer and conductive protecting layer are sequentially formed around jeting area.
In an embodiment of the utility model, forming conductive protecting layer includes:
Convex-concave surface is formed at the top of conductive protecting layer.
In an embodiment of the utility model, forming conductive protecting layer includes:
Being formed in conductive protecting layer combines through-hole to accommodate minor insulation layer.
In an embodiment of the utility model, forming conductive protecting layer includes:
Sunk area is formed in conductive protecting layer bottom.
In an embodiment of the utility model, it is formed in conjunction with through-hole and includes:
In conjunction with the axis direction at least two of through-hole 36.
In an embodiment of the utility model, forming sunk area includes:
Recess width in front of jeting area is gradually increased, and cup depth gradually increases.
In an embodiment of the utility model, forming sunk area includes:
The recess width at jeting area rear is gradually reduced, and cup depth gradually decreases.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
Claims (10)
1. a kind of nozzle protecting device characterized by comprising
Conductive protecting layer is used to form the isolation support of the jeting area around print head and water conservancy diversion electrostatic charge；
Insulating layer, for forming the buffer layer between the conductive protecting layer and the print head around the jeting area.
2. nozzle protecting device as described in claim 1, which is characterized in that the conductive protecting layer, the insulating layer and institute
The ink-jet end face sequence for stating print head is combined closely, and smooth through-bore, the smooth through-bore and institute are opened up on the conductive protecting layer
It is corresponding to state jeting area position.
3. nozzle protecting device as claimed in claim 2, which is characterized in that led described in the transmission direction along ink-jet bearing medium
Electrical protection both ends are opposite to be bent, printhead side walls described in fixed clamp, the ground connection of the conductive protecting layer and the print head
Circuit connection.
4. nozzle protecting device as claimed in claim 2, which is characterized in that the conductive protecting layer is using no magnetic conductive material
Material, the insulating layer use nitrile rubber or silica gel thin film.
5. nozzle protecting device as claimed in claim 2, which is characterized in that the conductive protecting layer and the ink-jet end face
Adjacent surface forms continuous convex-concave surface.
6. nozzle protecting device as claimed in claim 5, which is characterized in that the convex-concave surface includes parallel fin and recessed
The extending direction of slot, the fin and groove is consistent with the transmission direction of ink-jet bearing medium.
7. nozzle protecting device as claimed in claim 2, which is characterized in that around the smooth through-bore in the conductive protection
Layer opens up through-hole in conjunction with several with the corresponding part of the ink-jet end face, and the insulating layer forms insulation protrusion, the insulation
Protrusion is protruded into adjacent combination through-hole to be formed and be combined closely.
8. nozzle protecting device as claimed in claim 7, which is characterized in that the combination through-hole is at least divided into two groups of axis
Direction.
9. nozzle protecting device as claimed in claim 2, which is characterized in that in the conductive protecting layer and the ink-jet end face
Corresponding part bottom, along ink-jet bearing medium transmission direction formed depth consecutive variations sunk area.
10. nozzle protecting device as claimed in claim 9, which is characterized in that be arranged first in the front of the smooth through-bore
The rear sidewall of sunk area, first sunk area is connected to the smooth-sided of the smooth through-bore, first recess
The recess width in region is gradually increased, and cup depth gradually increases, and/or
The second sunk area is set at the rear of the smooth through-bore, the front side wall of second sunk area and described smooth
The smooth-sided of through-hole is connected to, and the recess width is gradually reduced, and cup depth gradually decreases, or
It further include several water conservancy diversion through slots, the circulation groove in the corresponding part bottom of the conductive protecting layer Yu the ink-jet end face
Fan-shaped distribution, the front end of the water conservancy diversion through slot are connected to second sunk area, the rear end of the water conservancy diversion through slot with it is described
The connection of corresponding part bottom margin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821302802.8U CN208946884U (en) | 2018-08-14 | 2018-08-14 | A kind of nozzle protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821302802.8U CN208946884U (en) | 2018-08-14 | 2018-08-14 | A kind of nozzle protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208946884U true CN208946884U (en) | 2019-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821302802.8U Active CN208946884U (en) | 2018-08-14 | 2018-08-14 | A kind of nozzle protecting device |
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| CN (1) | CN208946884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773186A (en) * | 2018-08-14 | 2018-11-09 | 北京捷润科技有限公司 | A kind of nozzle protecting device and guard method |
-
2018
- 2018-08-14 CN CN201821302802.8U patent/CN208946884U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773186A (en) * | 2018-08-14 | 2018-11-09 | 北京捷润科技有限公司 | A kind of nozzle protecting device and guard method |
| CN108773186B (en) * | 2018-08-14 | 2023-10-27 | 北京捷润科技有限公司 | Spray head protection device and protection method |
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