CN105644151B - A kind of ink-jet nozzle of replaceable nozzle jewel and piezoelectric ceramic piece - Google Patents
A kind of ink-jet nozzle of replaceable nozzle jewel and piezoelectric ceramic piece Download PDFInfo
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- CN105644151B CN105644151B CN201610141975.5A CN201610141975A CN105644151B CN 105644151 B CN105644151 B CN 105644151B CN 201610141975 A CN201610141975 A CN 201610141975A CN 105644151 B CN105644151 B CN 105644151B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 90
- 239000010437 gem Substances 0.000 title claims abstract description 67
- 229910001751 gemstone Inorganic materials 0.000 title claims abstract description 62
- 210000004907 gland Anatomy 0.000 claims description 14
- 239000004809 Teflon Substances 0.000 claims description 10
- 229920006362 Teflon® Polymers 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 239000000976 ink Substances 0.000 description 45
- 230000005484 gravity Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
技术领域technical field
本发明涉及喷码机领域，特别是涉及一种可更换喷咀宝石及压电陶瓷片的喷墨喷咀。The invention relates to the field of inkjet printers, in particular to an inkjet nozzle which can replace a nozzle jewel and a piezoelectric ceramic sheet.
背景技术Background technique
目前，在连续喷印打印机的运作中。墨水经由墨水缸并通过墨水泵或其它设备产生的压力将墨水供应给喷咀主体,主体里面有一个压电陶瓷换能器,压电陶瓷换能器将电能转换成机械能使墨水产生脉冲振荡。墨水经过压电陶瓷换能器后,经由一片中间有孔的宝石,产生一条墨水线，墨水线在离开喷咀宝石后，被分裂成连串有序的墨点。每个墨点的大小及其相互距离相同。然后这些墨点经过一个充电隧道。在充电隧道内各自逐一被选择性地充电。墨点在离开充电隧道后会通过一个带有正极负极的高压偏转板。充电的墨点将会在磁场产生偏转，喷向被喷物体表面。而没有被充电的墨点或充电低于15VDC的墨点则不受磁场影响，继续往前移动,以少于1mm的距离通过一个电量检测器后，被真空的回收管回收。回收的墨水会储存到墨水缸。Currently, continuous printing printers are in operation. The ink is supplied to the nozzle body through the ink tank and the pressure generated by the ink pump or other equipment. There is a piezoelectric ceramic transducer inside the main body. The piezoelectric ceramic transducer converts electrical energy into mechanical energy to make the ink pulse and oscillate. After the ink passes through the piezoelectric ceramic transducer, it passes through a jewel with a hole in the middle to produce an ink line. After the ink line leaves the nozzle jewel, it is split into a series of orderly ink dots. Each ink dot is the same size and its distance from each other. These ink dots then pass through a charging tunnel. They are selectively charged one by one in the charging tunnel. After leaving the charging tunnel, the ink dots pass through a high-voltage deflector plate with positive and negative electrodes. The charged ink dots will be deflected in the magnetic field and sprayed to the surface of the sprayed object. The ink dots that are not charged or the ink dots charged below 15VDC are not affected by the magnetic field and continue to move forward. After passing through a power detector at a distance of less than 1mm, they are recovered by the vacuum recovery tube. Recycled ink is stored in ink tanks.
面对市场上不同的应用需求，例如，一些需要超高速喷印很小的字体在直径2mm的电线上,有一些则需要在输送带上喷印5～18mm的不同大小的字体。再加上喷墨所用的墨水千变万化，墨水必须在其特定的机械谐振频率下,才可产生良好的墨点，墨水由于自身黏度、温度、比重等因素导致所需的机械谐振各不同。因此喷码机的谐振频率需要有一个较大范围的压电陶瓷换能器去适应不同墨水,同时宝石的孔径大小需要适应不同大小的墨点,去喷印不同大小字体。现有的调整谐振频率范围的方法，一般需要更换不同频率的压电陶瓷换能器来调整频率。而更换压电陶瓷换能器非常复杂，只能在喷咀生产厂更换，更换后还要在压电陶瓷组件上增加或减少重量用来作为调频手段。这无疑降低了工作效率，并增加了生产成本。In the face of different application requirements in the market, for example, some require ultra-high-speed printing of very small fonts on wires with a diameter of 2mm, and some require printing of fonts of different sizes from 5 to 18mm on the conveyor belt. In addition, the ink used in inkjet is ever-changing, and the ink must be at its specific mechanical resonance frequency to produce good ink dots. The required mechanical resonance of the ink is different due to factors such as its own viscosity, temperature, and specific gravity. Therefore, the resonant frequency of the inkjet printer needs a larger range of piezoelectric ceramic transducers to adapt to different inks, and the aperture size of the gemstone needs to adapt to different sizes of ink dots to print different sizes of fonts. In the existing methods for adjusting the resonance frequency range, it is generally necessary to replace piezoelectric ceramic transducers with different frequencies to adjust the frequency. It is very complicated to replace the piezoelectric ceramic transducer, and it can only be replaced in the nozzle production plant. After the replacement, the weight of the piezoelectric ceramic assembly must be increased or decreased as a means of frequency modulation. This undoubtedly reduces work efficiency and increases production costs.
发明内容Contents of the invention
为解决上述问题，本发明提供一种提高喷嘴应用范围的可更换喷咀宝石及压电陶瓷片的喷墨喷咀。In order to solve the above problems, the present invention provides an ink-jet nozzle that can replace the nozzle jewel and the piezoelectric ceramic sheet to improve the application range of the nozzle.
本发明解决其技术问题所采用的技术方案是：The technical solution adopted by the present invention to solve its technical problems is:
一种可更换喷咀宝石及压电陶瓷片的喷墨喷咀，包括喷咀主体，喷咀主体上设有可更换喷嘴宝石的宝石更换结构和/或可更换压电陶瓷片的压电陶瓷片更换结构，压电陶瓷片更换结构包括固定盖及压电陶瓷片，固定盖限制压电陶瓷片于喷咀主体的一端，压电陶瓷片更换结构还包括压电陶瓷支架，压电陶瓷支架设置在固定盖与压电陶瓷片之间，压电陶瓷片与压电陶瓷支架之间还设有导电电极，导电电极的主体为环状并在中心设有用于导电的触板，触板连接电线，压电陶瓷支架为一碗状并在中心设有中空柱。An ink-jet nozzle with replaceable nozzle jewels and piezoelectric ceramic sheets, comprising a nozzle body, the nozzle main body is provided with a jewel replacement structure capable of replacing nozzle jewels and/or piezoelectric ceramics with replaceable piezoelectric ceramic sheets The replacement structure of the piezoelectric ceramic sheet includes a fixed cover and a piezoelectric ceramic sheet. The fixed cover restricts the piezoelectric ceramic sheet to one end of the nozzle body. The piezoelectric ceramic sheet replacement structure also includes a piezoelectric ceramic bracket and a piezoelectric ceramic bracket. It is arranged between the fixed cover and the piezoelectric ceramic sheet, and a conductive electrode is also provided between the piezoelectric ceramic sheet and the piezoelectric ceramic support. The main body of the conductive electrode is ring-shaped and a contact plate for conducting electricity is provided in the center. The electric wire, piezoelectric ceramic support is bowl-shaped and has a hollow column in the center.
进一步作为本发明技术方案的改进，触板为L型并同电线穿入中空柱，压电陶瓷支架的材料为Teflon或者POM,或者PP或者PE。As a further improvement of the technical solution of the present invention, the contact plate is L-shaped and penetrates the hollow column with the electric wire, and the material of the piezoelectric ceramic support is Teflon or POM, or PP or PE.
进一步作为本发明技术方案的改进，在压电陶瓷片与喷咀主体之间设有垫片，垫片的材料为铁氟龙。As a further improvement of the technical solution of the present invention, a gasket is provided between the piezoelectric ceramic sheet and the nozzle body, and the material of the gasket is Teflon.
进一步作为本发明技术方案的改进，固定盖为环状外螺纹螺母，固定盖端面上设有利于安装的横切槽口，固定盖嵌入喷咀主体并与喷咀主体螺纹连接。As a further improvement of the technical solution of the present invention, the fixed cover is a ring-shaped external threaded nut, and the end surface of the fixed cover is provided with a cross-cut notch to facilitate installation. The fixed cover is embedded in the nozzle body and is threadedly connected with the nozzle body.
进一步作为本发明技术方案的改进，宝石更换结构包括压盖及喷咀宝石，喷咀宝石设置在压盖与喷咀主体之间，压盖与喷咀主体为螺纹连接。As a further improvement of the technical solution of the present invention, the jewel replacement structure includes a gland and a nozzle jewel, the nozzle jewel is arranged between the gland and the nozzle main body, and the gland and the nozzle main body are threaded.
进一步作为本发明技术方案的改进，宝石更换结构还包括喷咀宝石垫，喷咀宝石垫上设有凹槽，喷咀宝石设置在凹槽内。As a further improvement of the technical solution of the present invention, the jewel replacement structure further includes a nozzle jewel pad, a groove is arranged on the nozzle jewel cushion, and the nozzle jewel is arranged in the groove.
进一步作为本发明技术方案的改进，喷咀主体一端设有外螺纹，压盖为一螺母盖，螺母的本体呈圆柱形并在端面上设有利于安装的槽口。As a further improvement of the technical solution of the present invention, one end of the main body of the nozzle is provided with an external thread, and the gland is a nut cover. The body of the nut is cylindrical and has a notch on the end surface to facilitate installation.
进一步作为本发明技术方案的改进，喷咀主体的侧壁上设有的供墨管和回墨管。As a further improvement of the technical solution of the present invention, an ink supply pipe and an ink return pipe are provided on the side wall of the nozzle main body.
本发明的有益效果：此可更换喷咀宝石及压电陶瓷片的喷墨喷咀，在喷咀主体上设有可更换喷嘴宝石的宝石更换结构和/或可更换压电陶瓷片的压电陶瓷片更换结构，使得该喷咀可根据墨水的不同黏度、比重、墨点大小更换相应频率的压电陶瓷片及相应孔径大小的喷咀宝石。使喷咀适用于不同黏度的墨水，同时使喷咀不会由于某一特定频率范围而限制应用范围，不仅节约了成本，同时也提高了工作效率。Beneficial effects of the present invention: the ink-jet nozzle with replaceable nozzle gem and piezoelectric ceramic sheet is provided with a gem replacement structure with replaceable nozzle gem and/or piezoelectric ceramic sheet with replaceable nozzle gem on the nozzle body. The replacement structure of the ceramic sheet enables the nozzle to replace the piezoelectric ceramic sheet of the corresponding frequency and the nozzle jewel of the corresponding aperture size according to the different viscosity, specific gravity and ink dot size of the ink. The nozzle is suitable for inks with different viscosities, and the application range of the nozzle will not be limited due to a certain frequency range, which not only saves the cost, but also improves the working efficiency.
附图说明Description of drawings
下面结合附图对本发明作进一步说明：The present invention will be further described below in conjunction with accompanying drawing:
图1是本发明实施例整体结构示意图。Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention.
具体实施方式detailed description
以下将结合实施例和附图对本发明的构思、具体结构及产生的技术效果进行清楚、完整地描述，以充分地理解本发明的目的、特征和效果。显然，所描述的实施例只是本发明的一部分实施例，而不是全部实施例，基于本发明的实施例，本领域的技术人员在不付出创造性劳动的前提下所获得的其他实施例，均属于本发明保护的范围。The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention.
参照图1，本发明为一种可更换喷咀宝石及压电陶瓷片的喷墨喷咀，包括喷咀主体7，喷咀主体7上设有可更换喷嘴宝石的宝石更换结构和/或可更换压电陶瓷片的压电陶瓷片更换结构，压电陶瓷片更换结构包括固定盖1及压电陶瓷片5，固定盖1限制压电陶瓷片5于喷咀主体7的一端。With reference to Fig. 1, the present invention is a kind of ink-jet nozzle that can replace nozzle jewel and piezoelectric ceramic sheet, comprises nozzle main body 7, is provided with the jewel replacement structure of replaceable nozzle jewel on the nozzle main body 7 and/or can A piezoelectric ceramic sheet replacement structure for replacing piezoelectric ceramic sheets. The piezoelectric ceramic sheet replacement structure includes a fixed cover 1 and a piezoelectric ceramic sheet 5 . The fixed cover 1 restricts the piezoelectric ceramic sheet 5 to one end of the nozzle body 7 .
此可更换喷咀宝石及压电陶瓷片的喷墨喷咀，在喷咀主体7上设有可更换喷嘴宝石的宝石更换结构和/或可更换压电陶瓷片的压电陶瓷片更换结构，使得该喷咀可根据墨水的不同黏度、比重、墨点大小更换相应频率的压电陶瓷片及相应孔径大小的喷咀宝石。使喷咀适用于不同黏度的墨水，同时使喷咀不会由于某一特定频率范围而限制应用范围，不仅节约了成本，同时也提高了工作效率。This inkjet nozzle that can replace the nozzle jewel and the piezoelectric ceramic sheet is provided with a jewel replacement structure that can replace the nozzle gem and/or a piezoelectric ceramic sheet replacement structure that can replace the piezoelectric ceramic sheet on the nozzle main body 7, This enables the nozzle to be replaced with piezoelectric ceramic sheets of corresponding frequency and nozzle jewels of corresponding aperture size according to the different viscosity, specific gravity and ink dot size of the ink. The nozzle is suitable for inks with different viscosities, and the application range of the nozzle will not be limited due to a certain frequency range, which not only saves the cost, but also improves the working efficiency.
作为本发明优选的实施方式，压电陶瓷片更换结构还包括压电陶瓷支架2，压电陶瓷支架2设置在固定盖1与压电陶瓷片5之间。As a preferred embodiment of the present invention, the piezoelectric ceramic sheet replacement structure further includes a piezoelectric ceramic support 2 , and the piezoelectric ceramic support 2 is arranged between the fixed cover 1 and the piezoelectric ceramic sheet 5 .
作为本发明优选的实施方式，压电陶瓷片5与压电陶瓷支架2之间还设有导电电极3，导电电极3的主体为环状并在中心设有用于导电的触板，触板连接电线4。As a preferred embodiment of the present invention, a conductive electrode 3 is also provided between the piezoelectric ceramic sheet 5 and the piezoelectric ceramic support 2. The main body of the conductive electrode 3 is ring-shaped and is provided with a contact plate for conducting electricity in the center, and the contact plate is connected. Wire 4.
作为本发明优选的实施方式，压电陶瓷支架2为一碗状并在中心设有中空柱21，触板为L型并同电线4穿入中空柱21，压电陶瓷支架的材料为Teflon或者POM,或者PP或者PE。As a preferred embodiment of the present invention, the piezoelectric ceramic support 2 is bowl-shaped and is provided with a hollow column 21 in the center, the contact plate is L-shaped and penetrates the hollow column 21 with the electric wire 4, and the material of the piezoelectric ceramic support is Teflon or POM, or PP or PE.
作为本发明优选的实施方式，在压电陶瓷片5与喷咀主体7之间设有垫片6，垫片的材料为铁氟龙。As a preferred embodiment of the present invention, a gasket 6 is provided between the piezoelectric ceramic sheet 5 and the nozzle body 7, and the material of the gasket is Teflon.
作为本发明优选的实施方式，固定盖1为环状外螺纹螺母，固定盖1端面上设有利于安装的横切槽口，固定盖1嵌入喷咀主体7并与喷咀主体7螺纹连接。As a preferred embodiment of the present invention, the fixed cover 1 is a ring-shaped external threaded nut, and the end surface of the fixed cover 1 is provided with a cross-cut notch for installation. The fixed cover 1 is embedded in the nozzle main body 7 and is threaded with the nozzle main body 7 .
作为本发明优选的实施方式，宝石更换结构包括压盖12及喷咀宝石11，喷咀宝石11设置在压盖12与喷咀主体7之间，压盖12与喷咀主体7为螺纹连接。As a preferred embodiment of the present invention, the jewel replacement structure includes a gland 12 and a nozzle jewel 11, the nozzle jewel 11 is arranged between the gland 12 and the nozzle body 7, and the gland 12 and the nozzle body 7 are threaded.
作为本发明优选的实施方式，宝石更换结构还包括喷咀宝石垫10，喷咀宝石垫10上设有凹槽101，喷咀宝石11设置在凹槽101内。As a preferred embodiment of the present invention, the jewel replacement structure further includes a nozzle jewel pad 10 , a groove 101 is arranged on the nozzle jewel cushion 10 , and the nozzle jewel 11 is arranged in the groove 101 .
作为本发明优选的实施方式，喷咀主体7一端设有外螺纹，压盖12为一螺母盖，螺母的本体呈圆柱形并在端面上设有利于安装的槽口121。As a preferred embodiment of the present invention, one end of the nozzle main body 7 is provided with an external thread, the gland 12 is a nut cover, the body of the nut is cylindrical and a notch 121 is provided on the end surface to facilitate installation.
作为本发明优选的实施方式，喷咀主体7的侧壁上设有的供墨管8和回墨管9。As a preferred embodiment of the present invention, an ink supply pipe 8 and an ink return pipe 9 are provided on the side wall of the nozzle main body 7 .
一种可更换墨线大小及频率的喷咀,用于连续式喷墨打印机。压电陶瓷片及喷咀宝石均可随墨水要求而更换改变,包括固定盖1、压电陶瓷片支架2、铜的导电电极3、电线4、压电陶瓷片5、铁氟龙材料的垫片6、喷咀主体7、墨水供墨管8、墨水回墨管9、喷咀宝石垫10、喷咀宝石11、压盖12。压电陶瓷片支架通常由Teflon,POM,PP或PE塑料制成。固定盖1为螺母可用不锈钢制成。The utility model relates to a spray nozzle capable of changing the size and frequency of the ink line, which is used in a continuous inkjet printer. Piezoelectric ceramics and nozzle jewels can be changed according to ink requirements, including fixed cover 1, piezoelectric ceramic support 2, copper conductive electrodes 3, wires 4, piezoelectric ceramics 5, and Teflon pads Sheet 6, nozzle main body 7, ink supply ink pipe 8, ink return ink pipe 9, nozzle gem pad 10, nozzle gem 11, gland 12. Piezoelectric ceramic sheet holders are usually made of Teflon, POM, PP or PE plastics. Fixed cover 1 is that nut can be made of stainless steel.
宝石更换结构组件依次包括喷咀宝石垫10、喷咀宝石11及压盖12，喷咀宝石垫10可用Teflon或POM制做。喷咀宝石11用玻璃,晶体材料,陶瓷,硅酸盐或不锈钢材料做成，通常为圆柱体,直径在1.5mm至2.5mm之间,厚度在0.4mm至1.0mm之间。喷咀宝石11中间钻有一孔,孔径在25微米至90微米之间。The gem replacement structure assembly includes nozzle gem pad 10, nozzle gem 11 and gland 12 in turn, and nozzle gem pad 10 can be made of Teflon or POM. The nozzle jewel 11 is made of glass, crystal material, pottery, silicate or stainless steel, and is usually a cylinder with a diameter between 1.5mm and 2.5mm and a thickness between 0.4mm and 1.0mm. A hole is drilled in the middle of the nozzle jewel 11, and the aperture is between 25 microns and 90 microns.
压电陶瓷片更换结构组件依次包括固定盖1、压电陶瓷片支架2、铜的导电电极3、压电陶瓷片5、铁氟龙材料的垫片6。一片0.6mm厚两面带有电极的压电陶瓷片5可操作频率范围为40KHz至137KHz。如果喷咀安装一片这样的压电陶瓷片,这个喷咀就可以在40至137KHz频率之间变频操作。为使喷咀可适应更大范围的频率，可以更换的压电陶瓷片。只要更换不同频率范围的压电陶瓷片,便可使喷咀在其它频率范围内操作。使用时只要将固定盖1松开,取出压电陶瓷片支架,便可更换压电陶瓷片。The structural assembly for replacing the piezoelectric ceramic sheet includes a fixed cover 1, a piezoelectric ceramic sheet support 2, a copper conductive electrode 3, a piezoelectric ceramic sheet 5, and a gasket 6 made of Teflon material in sequence. A 0.6mm thick piezoelectric ceramic sheet 5 with electrodes on both sides can operate in a frequency range of 40KHz to 137KHz. If the nozzle is equipped with such a piezoceramic sheet, the nozzle can be operated with frequency conversion between 40 and 137KHz. In order to adapt the nozzle to a wider range of frequencies, the piezoceramics can be replaced. As long as the piezoelectric ceramic sheets of different frequency ranges are replaced, the nozzle can be operated in other frequency ranges. When in use, the piezoelectric ceramic sheet can be replaced by loosening the fixed cover 1 and taking out the support of the piezoelectric ceramic sheet.
喷咀主体7,以不锈钢或其它硬金属制成。侧面设有供墨管8及回墨管9。喷咀主体7提供一个空间,让压电陶瓷片与墨水接触。产生脉冲波。压电陶瓷支架2为一碗状并在中心设有中空柱21，导电电极3设置在中空柱21上，导电电极3主体为环状并在中心设有用于导电的L型触板，相当于一悬臂，使得压电陶瓷片5悬于一个空腔之中，充分与墨水接触，产生脉冲波所用的能量损耗小，效率高。The nozzle main body 7 is made of stainless steel or other hard metals. An ink supply pipe 8 and an ink return pipe 9 are arranged on the side. The nozzle main body 7 provides a space for the piezoelectric ceramic sheet to contact with the ink. Generate pulse waves. The piezoelectric ceramic support 2 is bowl-shaped and is provided with a hollow column 21 in the center, and the conductive electrode 3 is arranged on the hollow column 21. The main body of the conductive electrode 3 is ring-shaped and is provided with an L-shaped contact plate for conducting electricity in the center, which is equivalent to A cantilever allows the piezoelectric ceramic sheet 5 to be suspended in a cavity, fully in contact with the ink, and the energy loss for generating the pulse wave is small and the efficiency is high.
本方案提供了一个供连续喷印喷码机使用的喷咀,该喷咀的压电陶瓷片及喷咀宝石均可更换,使该喷咀可根据墨水的不同黏度,比重,墨点大小要求可更换相应频率的压电陶瓷片及相匹配孔径大小的喷咀宝石。以致该喷咀可以不用去厂家做更换，并省略了微调步骤，同时与现有技术相比仅需一块压电陶瓷片即可完成脉冲振荡，适用于不同黏度的墨水，适应范围广泛，同时节约了时间成本和物力人力成本。This solution provides a nozzle for continuous inkjet printing machine. The piezoelectric ceramic sheet and the nozzle jewel of the nozzle can be replaced, so that the nozzle can be used according to the different viscosity, specific gravity and ink dot size requirements of the ink. Piezoelectric ceramic sheets of corresponding frequency and nozzle jewels of matching aperture size can be replaced. As a result, the nozzle does not need to be replaced by the manufacturer, and the fine-tuning step is omitted. At the same time, compared with the existing technology, only one piezoelectric ceramic chip is needed to complete the pulse oscillation. It is suitable for inks of different viscosities, and has a wide range of applications. Time cost and material and human cost.
当然，本发明创造并不局限于上述实施方式，熟悉本领域的技术人员在不违背本发明精神的前提下还可做出等同变形或替换，这些等同的变形或替换均包含在本申请权利要求所限定的范围内。Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art can also make equivalent deformations or replacements without violating the spirit of the present invention. These equivalent deformations or replacements are all included in the claims of this application. within the limited range.
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