CN116474967A - Spraying needle tube and metal circuit processing method - Google Patents
Spraying needle tube and metal circuit processing method Download PDFInfo
- Publication number
- CN116474967A CN116474967A CN202310484409.4A CN202310484409A CN116474967A CN 116474967 A CN116474967 A CN 116474967A CN 202310484409 A CN202310484409 A CN 202310484409A CN 116474967 A CN116474967 A CN 116474967A
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- needle
- tip
- spraying
- channel
- fixed block
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- 238000005507 spraying Methods 0.000 title claims abstract description 71
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 58
- 239000002184 metal Substances 0.000 title claims abstract description 58
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 37
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 23
- 239000007921 spray Substances 0.000 claims description 23
- 230000003287 optical effect Effects 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 claims description 3
- 210000003437 trachea Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 9
- 238000003384 imaging method Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- SSLSOHVYTNAFRT-UHFFFAOYSA-H [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[W+6] Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[W+6] SSLSOHVYTNAFRT-UHFFFAOYSA-H 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/16—Arrangements for supplying liquids or other fluent material
- B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Nozzles (AREA)
Abstract
The invention relates to a spraying needle tube and a metal circuit processing method, wherein the spraying needle tube comprises a tube body, a needle point and a connecting component, one end of the tube body is connected with an external air tube, the needle point is arranged in an inner channel, the connecting component is arranged at the other end of the tube body, the connecting component comprises a fixed block and a connecting block, the fixed block is connected with the tube body, the tip end of the needle point is exposed out of the fixed block, the fixed block is provided with a connecting channel, the connecting block penetrates through the connecting channel, the tip end of the needle point is connected with a conductive wire through the connecting channel, and the conductive wire is fixed in the connecting channel through the connecting block. The method comprises the following steps: in the metal line coating process, pneumatic control and electric control are carried out on the spraying needle tube to control the spraying amount, and on-line repair is carried out through real-time imaging detection. The invention can improve the stability of the tip shape of the needle tip, realize the combination of electric control and pneumatic control, and realize the on-line detection and repair of the metal circuit processing, thereby improving the spraying quality and the product yield.
Description
Technical Field
The invention relates to a spray needle tube and a metal circuit processing method, and belongs to the technical field of metal circuit processing.
Background
Conductive ink spraying is a process of spraying conductive ink onto a substrate for manufacturing conductive lines or touch screens in electronic products. In the spraying process, the conductive ink is sprayed on the surface of the substrate through the nozzle to form a conductive circuit or pattern. The conductive ink spraying has the advantages of low cost, high production efficiency, strong adaptability and the like, and has been widely applied to the electronic field.
Conductive ink spraying often uses a spraying device as a metal line processing device, wherein a needle tube and a needle tip are very important components of the spraying device, particularly the size and shape of the needle tip directly influence the spraying effect and the spraying quality, and the quality of the needle tip also influences the spraying stability and the service life. However, the conventional conductive ink needle tube has the problem that the needle tip is fragile in the micrometer range, the needle tube is easy to deform in the process of processing and manufacturing a metal circuit, and the shape of the needle tip is unstable, so that the problem of unstable spraying effect is formed. Meanwhile, the existing conductive ink spraying mainly adopts a single electric control mode or a pneumatic control mode or a manual injection mode, so that the problem of unstable spraying quantity is more remarkable, and the spraying quality and the product yield are seriously affected. Therefore, the current conductive ink spraying precision is relatively low, and the requirement of a high-precision circuit cannot be met.
In addition, due to the characteristic limitation of traditional metal processing equipment, the existing metal circuit processing technology, in particular screen repair processing technology, mainly comprises two modes, namely a mode of chemical vapor deposition after tungsten powder based on hexahydroxy tungsten is gasified, and a mode of electric control conductive ink spraying based on nano silver solution, wherein the two modes take hexahydroxy tungsten and nano silver solution as consumption materials, the consumption materials are secret formulas configured abroad with high price, the processing cost is increased, the hexahydroxy tungsten has heavy toxicity, certain potential safety hazards exist after gasification, and the nano silver solution is very easy to have power plant interference of other electric devices of the equipment on the use of large equipment due to the high-low level control scheme of electrohydrodynamic, so that the problem of flow rate control is difficult to realize the spraying.
Disclosure of Invention
The invention provides a spray needle tube and a metal circuit processing method, which aim to at least solve one of the technical problems in the prior art. Therefore, the invention provides the spray needle tube and the metal circuit processing method, which can improve the stability of the tip shape of the needle tip, realize the combination of electric control and pneumatic control, realize the on-line detection and repair of the metal circuit processing, and further improve the spray quality and the product yield.
One aspect of the present invention relates to a spray needle cannula comprising:
the pipe body is provided with an inner channel, and one end of the pipe body is connected with an external air pipe;
a needle tip, the needle tip portion disposed in the inner channel;
the connecting assembly is arranged at one end of the pipe body, which is far away from the external air pipe, and comprises a fixed block and a connecting block, wherein the fixed block is connected with one end of the pipe body, which is far away from the external air pipe; the fixed block is sleeved on the needle point, and the tip end of the needle point is exposed at one end of the fixed block, which is away from the external trachea; the fixing block is provided with a connecting channel, and the connecting block is detachably arranged in the connecting channel in a penetrating manner so as to be abutted with the fixing block; the tip of the needle tip is connected with a conductive wire through the connecting channel, and the conductive wire is fixed in the connecting channel through the connecting block.
Further, the fixed block is provided with a mounting channel, and the mounting channel is communicated with the inner channel and the mounting channel.
Further, the tube body is made of a metal material, and the needle tip is made of a silver material.
Another aspect of the present invention relates to a metal wiring processing apparatus, comprising:
the spraying device comprises the spraying needle tube of the embodiment and a moving mechanism for moving the spraying needle tube;
the air outlet end of the skin lift air control pump is connected with the end part of the pipe body through the external air pipe;
a high voltage amplifier connected to the tip of the needle tip through the conductive wire;
the coaxial optical imager is used for observing and feeding back the metal circuit processing effect on line in real time;
and the external control host is used for processing feedback signals of the coaxial optical imager and sending control signals of the picoliter pneumatic control pump, the high-voltage amplifier and the moving mechanism.
Further, the pilot-operated pump outputs nitrogen.
Further, the output voltage of the high voltage amplifier is not greater than 500 volts.
Further, the needle tip is primed with liquid paint by an injection gun.
Further, the liquid coating is a silver copper solution.
Another aspect of the present invention relates to a metal line processing method, which is applied to the metal line processing apparatus of the above embodiment, and the method according to the present invention includes the steps of:
s100, controlling the high-voltage amplifier to send an electric signal through the external control host, transmitting the electric signal to the tip of the needle point through the conductive wire so as to enable the liquid coating of the tip to form a Taylor cone, and controlling the skin lifting pneumatic control pump to keep a standby state;
and S200, after a spraying signal is received, controlling the skin lifting pneumatic control pump to input gas to the pipe body through the external control host computer in a state that the needle point is kept electrified so as to control the spraying amount of the spraying device, and controlling the moving mechanism to drive the spraying needle tube to move through the external control host computer so as to form a metal line.
Further, the method also comprises the following steps:
s300, detecting and judging whether the metal circuit is qualified to be processed or not through the external control host according to the feedback signal of the coaxial optical imager;
and S400, when the unqualified metal circuit processing is detected, repeating the step S200 and the step S300 on the unqualified part of the metal circuit through the moving mechanism, the high-voltage amplifier and the picoliter pneumatic control pump until the external control host receives a feedback signal of the qualified coaxial optical imager.
The beneficial effects of the invention are as follows.
The spraying needle tube and the metal circuit processing method can simultaneously perform electric control and pneumatic control on spraying operation, and can improve the stability of the needle point shape, thereby improving the spraying quality. The pipe body is connected with the external air pipe, so that pneumatic control is carried out on the needle point spraying operation, meanwhile, connection between the needle point and the conductive wire is realized through the connecting component, thus, the pneumatic control is carried out, meanwhile, electric control can be carried out on the needle point, and the stability of the shape of the tip end of the needle point is improved through the connecting component, so that the spraying quality and the product qualification rate are improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a spray needle cannula according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of a body of a spray needle cannula according to an embodiment of the present invention.
Fig. 3 is a schematic view of the structure of a fixed block of a spray needle tube according to an embodiment of the present invention.
Fig. 4 is a schematic view of the structure of a needle tip of a spray needle tube according to an embodiment of the present invention.
Fig. 5 is an overall flowchart of a metal line processing method according to an embodiment of the present invention.
Reference numerals:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Pipe body | 300 | Connection assembly |
| 110 | Inner channel | 310 | Fixed block |
| 111 | Fixing section | 311 | Mounting channel |
| 112 | Connecting section | 312 | Connection channel |
| 120 | Tracheal joint | 313 | Embedding part |
| 200 | Needle tip | 314 | External connection part |
| 210 | Tip end | 315 | Abutment groove |
| 220 | Abutment ring | 320 | Connecting block |
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present invention. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, top, bottom, etc. used in the present invention are merely with respect to the mutual positional relationship of the respective constituent elements of the present invention in the drawings.
Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any combination of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure.
Referring to fig. 1 to 5, the spray needle tube according to the present invention is provided with an inner passage 110 in which a needle tip 200 is partially disposed in the inner passage 110, and one end of the tube 100 is connected to an external air tube. The connecting assembly 300 is arranged at one end of the pipe body 100 far away from the external air pipe, the connecting assembly 300 comprises a fixed block 310 and a connecting block 320, the fixed block 310 is connected with one end of the pipe body 100 far away from the external air pipe, the fixed block 310 is sleeved on the needle point 200, the tip 210 of the needle point 200 is exposed at one end of the fixed block 310 far away from the external air pipe, the fixed block 310 is provided with a connecting channel 312, the connecting block 320 is detachably penetrated in the connecting channel 312 to be abutted with the fixed block 310, the tip 210 of the needle point 200 is connected with a conductive wire through the connecting channel 312, and the conductive wire is fixed in the connecting channel 312 through the connecting block 320.
It should be noted that, the inner cavity of the needle tip 200 is used for accommodating the paint such as the conductive ink, and after the conductive ink in the needle tip 200 is used, the conductive ink can be injected from the end of the tube body 100 by disassembling the external air tube, or the conductive ink can be directly injected into the inner cavity of the needle tip 200 by the injection gun. It should be noted that, the tube body 100 of the embodiment of the present invention may be made of a metal material, the needle tip 200 of the embodiment of the present invention may be made of a silver material, the external air tube of the embodiment of the present invention may be made of rubber software, and the coating solution of the embodiment of the present invention may be a silver copper solution. The external air pipe of the embodiment of the invention injects nitrogen into the spraying needle tube.
Specifically, when the metal line processing is required, the conductive wire is firstly announced to transmit an alternating current signal to the needle tip 200, so that the conductive ink at the tip 210 generates electrofluidic characteristics under the action of alternating current pad electricity, thereby forming a taylor cone on the conductive ink at the tip 210 of the needle tip 200, at this time, the spraying needle tube enters a ready processing state without spraying, and the external air tube does not inject air into the spraying needle tube. When the metal wire processing requiring the spraying is performed, the external gas pipe injects gas into the pipe body 100 and the needle tip 200, thereby breaking the surface tension of the taylor cone formed by the electric fluid, so that the coating is sprayed on the processed product, thereby achieving the metal wire processing.
Referring to fig. 1 and 2, the tube body 100 is a long circular tube with a hollow structure, the long inner channel 110 is arranged in the middle of the tube body 100, the needle tip 200 is arranged in the inner channel 110, the outer wall of the needle tip 200 is abutted with the inner wall of the inner channel 110, that is, the tube body 100 is used as an outer tube while the needle tip 200 is used as an inner tube, so that the overall rigidity is improved. The inner cavity of the needle tip 200 is communicated with the inner channel 110, and the inner cavity of the needle tip 200 is used for containing a coating solution such as conductive ink. The tip 210 of the needle tip 200 protrudes from one end of the tube body 100, and the tip 210 of the needle tip 200 is connected to a conductive wire through the connection assembly 300, thereby being electrically controlled during a spraying operation. Meanwhile, one end of the tube body 100, which is far away from the tip 210 of the needle tip 200, is connected with an external air pipe, and an air pump is connected through the external air pipe, so that air is input into the inner channel 110 and the inner cavity of the needle tip 200, and pneumatic control can be performed synchronously during spraying operation. The lower end of the needle tip 200 is connected with the conductive wire, and the upper end of the needle tip 200 is communicated with an external air pipe, so that electric control and pneumatic control can be simultaneously performed during spraying operation, the control precision of the spraying amount is improved, and the spraying quality and the product yield are improved. And, the connecting component 300 is sleeved on the outer wall of the needle tip 200, which is close to the tip 210, so that the strength of the tip 210 of the needle tip 200 is improved, and when the needle tip 200 is moved to carry out spraying operation, the connecting component 300 plays a certain role in protecting the needle tip 200, thereby being beneficial to improving the problem of fragility of the needle tip 200, improving the stability of the shape of the needle tip 200 and improving the spraying stability.
In some embodiments of the present invention, referring to fig. 1 and 3, the connection assembly 300 includes a fixing block 310, the fixing block 310 is connected to an end of the tube body 100 remote from the external air tube, and the fixing block 310 is provided with a mounting channel 311, and the mounting channel 311 communicates with the inner channel 110. The tip 200 is abutted against the inner wall of the mounting channel 311, and the tip 210 of the tip 200 is exposed to one end of the fixing block 310 facing away from the external trachea. Referring to fig. 1, a mounting channel 311 is provided at the middle of the fixing block 310, the mounting channel 311 is in a long shape, the mounting channel 311 is communicated with the inner channel 110, the center line of the mounting channel 311 is on the same straight line with the center line of the inner channel 110, and the tip 210 of the needle tip 200 protrudes from the end of the fixing block 310 at one side far away from the external air pipe, so as to perform spraying operation. The needle tip 200 is partially arranged in the inner channel 110, and the outer wall close to the tip 210 of the needle tip 200 is abutted against the inner wall of the mounting channel 311, so that the strength of the tip 210 of the needle tip 200 is enhanced through the fixing block 310, the problem of fragility of the tip 210 of the needle tip 200 is favorably improved, the stability of the shape of the needle tip 200 is improved, and the spraying stability is improved.
In some embodiments of the present invention, the connection assembly 300 further includes a connection block 320, the fixing block 310 is provided with a connection channel 312, and the connection block 320 is detachably inserted into the connection channel 312 to abut against the fixing block 310. The needle tip 200 is connected to a conductive wire through the connection channel 312, and the conductive wire is fixed in the connection channel 312 through the connection block 320. Referring to fig. 1, the outer opening of the connection channel 312 is provided at the circumferential wall of the fixing block 310, one end of the connection block 320 is embedded into the connection channel 312, and the outer wall of the connection block 320 abuts against the inner wall of the connection channel 312, so that the connection block 320 can be fixed to the fixing block 310. It will be appreciated that in some embodiments of the present invention, the connection block 320 may be provided as a connection screw, thereby facilitating the installation and removal of the connection block 320.
Further, in some embodiments of the present invention, the conductive wire enters the mounting channel 311 through the connection channel 312 and is connected with the tip 210 of the needle tip 200, so that the needle tip 200 can be electrified, and the electric control operation can be realized for the oil injection operation. Referring to fig. 1, the connection block 320 is detached from the fixing block 310, and then the conductive wire passes through the connection channel 312 and is connected with the needle tip 200, and then the connection block 320 is mounted into the fixing block 310, and the connection block 320 abuts against the fixing block 310, so that the conductive wire is fixed between the connection block 320 and the fixing block 310, and convenient installation of the conductive wire is realized. It can be appreciated that the end of the connecting block 320 embedded in the fixing block 310 can be abutted against the outer wall of the needle tip 200, so that the connection strength between the needle tip 200 and the fixing block 310 can be improved, the stability of the shape of the tip 210 of the needle tip 200 can be improved, and the connection stability of the needle tip 200 and the conductive wire can be improved. Further, the axis of the connecting channel 312 is perpendicular to the axis of the mounting channel 311, so that the connection block 320 and the conductive wire are conveniently mounted, and the stability of the connection block 320 abutting against the needle tip 200 is improved.
In some embodiments of the present invention, the fixed block 310 is provided at opposite ends thereof with an embedded portion 313 and an external portion 314, and the embedded portion 313 has an outer diameter smaller than that of the external portion 314. The embedded portion 313 abuts against the inner wall of the inner channel 110, the external portion 314 is exposed out of the tube body 100, and the connecting channel 312 is disposed at the external portion 314. Referring to fig. 3, the insertion portion 313 is a hollow cylinder, an outer wall of the insertion portion 313 abuts against an inner wall of the inner passage 110 of the tube body 100, an intermediate passage of the insertion portion 313 communicates with the inner passage 110, and an outer wall of the needle tip 200 abuts against an inner wall of the intermediate passage of the insertion portion 313. The insertion portion 313 is inserted into an end portion of the tube body 100 remote from the external air pipe, thereby achieving connection of the fixing block 310 with the tube body 100. The external connection portion 314 is disposed at one end of the embedded portion 313 facing away from the external air pipe, and the external connection portion 314 protrudes from the end of the pipe body 100. The external connection part 314 is of a hexagonal nut-like structure, the middle channel of the external connection part 314 is communicated with the middle channel of the embedded part 313, and the axes of the two are on the same straight line, and the outer wall of the needle tip 200 close to the tip 210 is lower than the inner wall of the middle channel of the external connection part 314. The outer circumference of the external connection part 314 is hexagonal, and the outer diameter of the external connection part 314 is larger than the outer diameter of the pipe body 100, thereby facilitating the installation of the fixing block 310 on the pipe body 100. Further, referring to fig. 1, the connection channel 312 is disposed on the external connection portion 314, and an opening at one end of the connection channel 312 is disposed on the outer peripheral surface of the external connection portion 314.
In some embodiments of the present invention, an abutment groove 315 is disposed at one end of the fixing block 310 near the tube body 100, an abutment ring 220 is sleeved outside the needle tip 200, and the abutment ring 220 abuts against a groove wall of the abutment groove 315. Referring to fig. 3 and 4, an abutment groove 315 is provided at an end of the embedded portion 313 facing away from the external portion 314. The outer circumference of the needle tip 200 is sleeved on the abutting ring 220, the abutting ring 220 is embedded into the abutting groove 315, and the outer wall of the abutting ring 220 abuts against the inner wall of the abutting groove 315, so that the stability of connection between the needle tip 200 and the fixed block 310 can be improved.
In some embodiments of the present invention, the tube body 100 is connected to an external air tube through an air tube connector 120. Referring to fig. 1, an air pipe joint 120 is installed at one end of a pipe body 100, one end of the air pipe joint 120, which is far away from the pipe body 100, is connected with an external air pipe, and an air pump supplies air to an inner channel 110 of the pipe body 100 and an inner cavity of a needle tip 200 through the external air pipe, so that the spraying amount of the needle tip 200 can be controlled by adjusting the air inflow. Further, the tube body 100 is connected to an external air pipe by a set screw having a locking function. Further, the pipe body 100 can be connected with an external air pipe through a rubber screw, and the screw head of the rubber screw is provided with a rubber gasket, so that the sealing effect can be enhanced.
In some embodiments of the present invention, referring to fig. 1 and 2, the inner channel 110 includes a fixing section 111 and two connecting sections 112, the two fixing sections 111 are respectively disposed at two ends of the fixing section 111, the diameters of the two fixing ends are larger than the diameter of the connecting sections 112, and the inner wall of the fixing end is abutted with the outer wall of the needle tip 200. Referring to fig. 1, the connection sections 112 are respectively disposed at two ends of the tube body 100, the embedded portion 313 of the fixing block 310 is embedded into the wider connection section 112 at one end, and the external air pipe is communicated with the wider connection end at the other end, and the narrower fixing section 111 at the middle of the tube body 100 is abutted against the needle tip 200, so that the needle tip 200 is fixed by the fixing section 111, and meanwhile, two connection sections 112 are disposed, so that the installation of the fixing block 310 and the entry of external air pipe into the tube body 100 can be facilitated.
Referring to fig. 1 to 5, the metal processing apparatus according to the technical scheme of the present invention includes a spraying device, a skin lift pneumatic control pump, a high voltage amplifier, a coaxial optical imager and an external control host. The spraying device comprises the spraying needle tube and a moving mechanism for moving the spraying needle tube. The air outlet end of the pilot-operated pump is connected with the end of the pipe body 100 through an external air pipe, so that air is input to the spraying needle tube to realize pneumatic control. The high voltage amplifier is connected to the tip 210 of the needle tip 200 through a conductive wire, thereby inputting an electrical signal to the tip 210 of the needle tip 200 to realize electrical control. The coaxial optical imager is used for observing the metal circuit processing effect on line in real time, so that on-line real-time detection is realized. The external control host is used for processing feedback signals of the coaxial optical imager and sending control signals of the booster pump, the high-voltage amplifier and the moving mechanism, so that synchronous operation of pneumatic control and electric control is realized, and efficient online processing repair is realized.
In some embodiments of the present invention, one end of the tube body 100 of the injection device is connected to the skin lift pneumatic pump through an external air tube to supply air to the inner cavity of the needle tip 200, and the tip 210 of the needle tip 200 of the injection device is wound with a conductive wire, so that the high voltage amplifier can electrically control the injection device. Further, the body 100 of the injection device may be made of a metal material, and the needle tip 200 may be made of a pure silver material to improve the conductivity of the spray needle tube and to improve the stability of the shape of the tip 210 of the needle tip 200.
In some embodiments of the present invention, the air inlet end of the picoliter air pump is connected with nitrogen, the output end is connected with an external air pipe connected with the spraying needle tube, further, the air inlet end of the picoliter air pump is connected with 99.999% pure nitrogen, the minimum air discharge amount of the picoliter air pump is 1 picoliter, and therefore, the high-purity nitrogen is adopted to squeeze the paint in the spraying device, so that the paint can be continuously discharged from the tip 210 of the needle tip 200, and the paint can be matched with the movement of the moving mechanism, so that a metal circuit is formed. It should be noted that the moving mechanism may drive the spray needle tube to move downward or upward so that the spray needle tube contacts or separates from the workpiece. In some embodiments, during the metal line processing, the workpiece may be disposed on a displacement mechanism capable of moving horizontally, and when the tip 210 of the needle tip 200 of the spraying needle tube contacts the workpiece, the displacement mechanism drives the workpiece to move horizontally under the control of the signal of the external control host, so that the workpiece and the needle tip 200 move relatively, thereby forming the metal line. In some embodiments, the moving mechanism may drive the spray needle tube to move up and down, and may also drive the spray needle tube to move horizontally, when the metal line is processed, the workpiece is kept in a stationary state, and after the tip 210 of the needle tip 200 of the spray needle tube contacts the workpiece, the moving mechanism drives the spray needle tube to move horizontally, so that the workpiece and the needle tip 200 move relatively, thereby forming the metal line.
In some embodiments of the present invention, the output voltage of the high voltage amplifier is an ac voltage not greater than 500 v, so that the conductive ink can more easily form a taylor cone on the surface of the tip 210 of the needle tip 200, and meanwhile, the surface tension of the taylor cone is not easily damaged, the taylor cone is formed before pneumatic control, and the needle tip 200 is kept powered on during pneumatic control, which is beneficial to improving the smoothness of gas extrusion conductive ink, and thus, the spraying quality.
In some embodiments of the present invention, the coaxial optical imager includes an industrial camera and its optical lenses, so as to implement on-line photo feedback, so as to perform real-time detection feedback on the metal line processing effect and the product maintenance effect.
In some embodiments of the present invention, the external control host includes a display screen and a host, the host includes a control card for the picoliter pneumatic pump, the high-voltage amplifier and the moving mechanism, and a control card for the coaxial optical imager, and control parameters for the picoliter pneumatic pump, the high-voltage amplifier and the moving mechanism are adjusted and output according to imaging data.
Referring to fig. 5, in some embodiments, the metal line processing method according to the present invention is applied to the metal line processing apparatus according to the embodiment of the present invention, and includes at least the following steps:
s100, controlling the high-voltage amplifier to send an electric signal through the external control host, and transmitting the electric signal to the tip 210 of the needle tip 200 through the electric wire so as to enable the liquid coating of the tip 210 to form a Taylor cone; the skin lift pneumatic control pump is controlled by the external control host to keep a standby state;
s200, after a spraying signal is received, controlling a skin lift pneumatic pump to input gas to the pipe body 100 by an external control host machine under the state that the needle tip 200 is kept electrified so as to control the spraying amount of the spraying device; meanwhile, the external control host controls the moving mechanism to drive the needle point 200 to move so as to form a metal circuit.
Further, the method also comprises the following steps:
s300, detecting and judging whether the metal circuit is qualified to be processed or not through an external control host according to a feedback signal of the coaxial optical imager;
and S400, when the disqualification of the metal circuit is detected, reprocessing the unqualified processing part of the metal circuit through the moving mechanism, the high-voltage amplifier and the skin lift pneumatic control pump until the external control host receives the feedback signal of the qualified coaxial optical imager.
This is described in terms of one specific embodiment. When the metal circuit processing equipment provided by the embodiment of the invention is used for repairing the circuit, the metal circuit processing method at least comprises the following steps:
s100, when an external control host receives a line repair instruction, controlling the high-voltage amplifier to send an electric signal to the spraying device so as to enable the conductive ink of the tip 210 to form a Taylor cone, and simultaneously controlling the moving mechanism to drive the spraying device to reach a line repair position;
s200, after a spraying signal is received, in a state that the spraying device is kept on-off, controlling the lifting pneumatic control pump to input gas to the pipe body 100 through the external control host machine so as to continuously discharge conductive ink from the needle point 200, and simultaneously controlling the moving mechanism to drive the needle point 200 to move through the external control host machine so as to form a metal circuit at a circuit repairing position;
s300, after the current line repair instruction is completed, photographing the line repair position through the coaxial optical imager and feeding back to the external control host, and detecting and judging whether the metal line is qualified or not through the external control host;
and S400, when the metal circuit processing at the circuit repairing position is detected to be unqualified, reprocessing the circuit repairing position through the moving mechanism, the high-voltage amplifier and the skin lift pneumatic control pump until the external control host receives a feedback signal of the qualified coaxial optical imager.
The present invention is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present invention, which are included in the spirit and principle of the present disclosure. Are intended to fall within the scope of the present invention. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the invention.
Claims (10)
1. A spray needle cannula comprising:
the pipe body (100), the pipe body (100) is provided with an inner channel (110), and one end of the pipe body (100) is connected with an external air pipe;
a needle tip (200), the needle tip (200) being partially disposed in the inner channel (110);
the connecting assembly (300) is arranged at one end, far away from the external air pipe, of the pipe body (100), the connecting assembly (300) comprises a fixed block (310) and a connecting block (320), and the fixed block (310) is connected with one end, far away from the external air pipe, of the pipe body (100); the fixed block (310) is sleeved on the needle point (200), and the tip (210) of the needle point (200) is exposed out of one end of the fixed block (310) away from the external trachea; the fixed block (310) is provided with a connecting channel (312), and the connecting block (320) is detachably arranged in the connecting channel (312) in a penetrating manner so as to be abutted with the fixed block (310); the tip (210) of the needle tip (200) is connected to a conductive wire through the connection channel (312), and the conductive wire is fixed in the connection channel (312) through the connection block (320).
2. A spray needle cannula according to claim 1, characterized in that the fixed block (310) is provided with a mounting channel (311), which mounting channel (311) communicates with the inner channel (110) and the mounting channel (311).
3. The spray needle cannula according to claim 1, wherein the tube body (100) is made of a metallic material and the needle tip (200) is made of a silver material.
4. A metal wiring processing apparatus, comprising:
a spraying device comprising the spray needle cannula of any one of claims 1 to 3, and a moving mechanism for moving the spray needle cannula;
the air outlet end of the lifting air control pump is connected with the end part of the pipe body (100) through the external air pipe;
a high voltage amplifier connected to a tip (210) of the needle tip (200) through the conductive wire;
the coaxial optical imager is used for observing and feeding back the metal circuit processing effect on line in real time;
and the external control host is used for processing feedback signals of the coaxial optical imager and sending control signals of the picoliter pneumatic control pump, the high-voltage amplifier and the moving mechanism.
5. The metal line processing apparatus of claim 4, wherein the pilot-operated pump outputs nitrogen.
6. The metal line processing apparatus of claim 4, wherein the output voltage of the high voltage amplifier is no greater than 500 volts.
7. The metal line processing apparatus of claim 4, wherein the needle tip (200) is primed with liquid paint by an injection gun.
8. The metal line processing apparatus of claim 7, wherein the liquid coating is a silver copper solution.
9. A metal wiring processing method applied to the metal wiring processing apparatus according to any one of claims 4 to 8, the method comprising the steps of:
s100, controlling the high-voltage amplifier to send an electric signal through the external control host, transmitting the electric signal to the tip (210) of the needle point (200) through the conductive wire so as to enable the liquid coating of the tip (210) to form a Taylor cone, and controlling the lifting pneumatic control pump to keep a standby state;
and S200, when a spraying signal is received, controlling the picoliter pneumatic control pump to input gas to the pipe body (100) through the external control host computer under the state that the needle point (200) is kept electrified so as to control the spraying amount of the needle point (200), and simultaneously controlling the moving mechanism to drive the spraying needle tube to move through the external control host computer so as to spray a metal line.
10. The method of claim 9, further comprising the step of:
s300, acquiring and judging whether the metal circuit is qualified to be processed or not through detection of the external control host according to the feedback signal of the coaxial optical imager;
and S400, when the unqualified metal circuit processing is detected, repeating the step S200 and the step S300 on the unqualified part of the metal circuit through the moving mechanism, the high-voltage amplifier and the picoliter pneumatic control pump until the external control host receives a feedback signal of the qualified coaxial optical imager.
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| CN202310484409.4A CN116474967A (en) | 2023-04-28 | 2023-04-28 | Spraying needle tube and metal circuit processing method |
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| CN202310484409.4A CN116474967A (en) | 2023-04-28 | 2023-04-28 | Spraying needle tube and metal circuit processing method |
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