CN110696482B - A printing screen with adjustable tension - Google Patents
A printing screen with adjustable tension Download PDFInfo
- Publication number
- CN110696482B CN110696482B CN201911112814.3A CN201911112814A CN110696482B CN 110696482 B CN110696482 B CN 110696482B CN 201911112814 A CN201911112814 A CN 201911112814A CN 110696482 B CN110696482 B CN 110696482B
- Authority
- CN
- China
- Prior art keywords
- screen
- mesh
- frame
- printing
- tension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007639 printing Methods 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 229920000728 polyester Polymers 0.000 claims description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000007650 screen-printing Methods 0.000 abstract description 14
- 239000007769 metal material Substances 0.000 abstract description 4
- 239000002390 adhesive tape Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
-
- 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
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
Abstract
The invention discloses a printing screen with adjustable tension, and belongs to the technical field of screen printing. The heating device comprises a screen frame and a screen plate, wherein a groove is formed in the screen frame, a heating rod is buried in the groove, a thermocouple is arranged on the surface of the screen frame, and the heating rod and the thermocouple are connected with a heating controller. The invention embeds the heating rod in the screen frame, realizes the adjustment function of the tension of the screen plate by adopting a heating mode by utilizing the characteristic of larger thermal expansion coefficient of the metal material, has the advantages of simple structure, convenient operation, low cost and the like, can greatly prolong the service life of the screen plate and reduce the use cost.
Description
Technical Field
The invention relates to the technical field of screen printing, in particular to a printing screen with adjustable tension.
Technical Field
Low temperature co-fired ceramic (LTCC) technology was a passive component integrated circuit technology developed in the eighties of the last century. The LTCC substrate supports multilayer wiring, and can integrate part of passive elements into the substrate, so that the LTCC substrate has the advantages of high speed, high frequency, high density, high reliability and the like, is beneficial to miniaturization of a system, improves the reliability of the system while improving the assembly density of a circuit, and is widely applied to the fields of microwave communication, aerospace, military electronics and the like.
The conductor patterns in the LTCC substrate are realized by screen printing, and the characteristics of LTCC multilayer stacking and microwave transmission have high requirements on the dimensional accuracy of pattern lines and the interlayer alignment accuracy. Screen tension is one of the important factors affecting the quality of a screen printing plate in a screen printing process, and affects the ink permeability of a screen and the positional accuracy of line patterns. The silk screen itself often comprises elastic material, can take place elastic deformation in printing, maintains certain tension, but irreversible deformation takes place gradually after the half tone uses many times, just can appear the problem that tension descends, influences printing quality. Most of the existing screen printing plates cannot be adjusted after the screen printing plates are manufactured, and once the tension drops in the use process to influence the printing precision, only scrapping treatment can be performed and new screen printing plates can be replaced.
Disclosure of Invention
In view of the above, the present invention provides a printing screen with adjustable tension, which can adjust the tension of a screen, and can improve the printing accuracy and the service life of the screen.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The tension-adjustable printing screen plate comprises a screen frame 1 and a composite structure screen, wherein a groove 10 is formed in the screen frame 1, a heating rod 4 is embedded in the groove 10, the groove 10 is sealed by a heat insulation adhesive tape 6, a temperature thermocouple 11 is further arranged on the surface of the screen frame 1, the composite structure screen comprises a polyester screen 2 arranged outside and a stainless steel screen 3 arranged in the center, the outer side of the stainless steel screen 3 is fixedly connected with the inner side of the polyester screen 2 through a bonding adhesive, the outer side of the polyester screen 2 is fixedly arranged on the screen frame 1 through the bonding adhesive, and the screen frame 1 is made of metal with a thermal expansion coefficient of more than 1.2 multiplied by 10 -5/° C.
Further, the stainless steel wire mesh 2 is provided with a printed pattern 9.
Further, the material of the screen frame 1 is aluminum.
Further, the number of the grooves 10 is four, and the grooves are respectively arranged on the four inner side walls of the net frame 1.
Further, heat conduction grease 5 is filled between the groove 10 and the heating rod 4.
The printing screen with adjustable tension comprises the printing screen as claimed in any one of the preceding claims, and further comprises a heating controller 8, wherein the heating rod 4 is connected with a temperature control interface of the heating controller 8 through a control line 7, the temperature thermocouple 11 is connected with a feedback interface of the heating controller 8 through the control line 7, and the temperature control range of the heating controller 8 is 25-50 ℃.
The beneficial effects of the invention adopting the technical scheme are as follows:
1. The invention uses the physical property of larger thermal expansion coefficient of metal material, adopts a heating mode to enlarge the size of the screen frame, and carries out secondary stretching on the polyester screen, thus improving the screen tension of the screen plate.
2. When the screen is used for many times and becomes loose, the screen frame size can be increased in a heating mode, and the adjustment of the screen tension is realized, so that the screen printing plate with poor printing precision due to the tension reduction can be continuously used, the service life of the screen printing plate is prolonged, and the use cost is reduced.
Drawings
Fig. 1 is a front cross-sectional view of a printing screen in an embodiment of the invention.
Fig. 2 is a top cross-sectional view of a printing screen in an embodiment of the invention.
The device comprises a screen frame 1, a polyester wire mesh 2, a stainless steel wire mesh 3, a heating rod 4, a heat conducting grease 5, a heat insulating adhesive tape 6, a control wire 7, a heating controller 8, a printed pattern 9, a groove 10, a thermocouple 11.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a printing screen with adjustable tension comprises a screen frame 1 and a screen mesh with a composite structure, wherein grooves 10 are formed in the screen frame 1, the grooves 10 are distributed on the frame of the screen frame 1, heating rods 4 are buried in the grooves 10, the outside of the grooves 10 is stuck and fixed by using a heat insulation adhesive tape 6, and thermocouples 11 are stuck on the surface of the screen frame 1.
The composite structure silk screen comprises a polyester silk screen 2 and a stainless steel silk screen 3, wherein the outer side of the stainless steel silk screen 3 is connected and fixed with the inner side of the polyester silk screen 2 through a bonding adhesive, the outer side of the polyester silk screen 2 is fixed on a screen frame 1 through the bonding adhesive, and a printing pattern 9 is arranged on the stainless steel silk screen 2.
In order to achieve good expansion of the frame, the frame 1 is preferably made of a metal having a thermal expansion coefficient of greater than 1.2x -5/°c, such as metallic aluminum.
When the screen printing plate is used for a plurality of times, the screen printing plate is not required to be heated, when the screen printing plate is loosened after being used for a plurality of times, the heating rod 4 and the thermocouple 11 can be respectively connected with the heating controller 8 through the control wire 7, the temperature is set on the heating controller 8, and then the heating controller 8 can maintain the temperature of the screen frame to be near the preset temperature through the heating rod, so that the constant temperature control of the screen frame is realized. At this time, the screen frame is heated and expanded, the size of the screen frame is enlarged, the polyester screen is secondarily stretched, and the tension of the screen is adjusted, so that the screen printing plate with poor printing precision due to the tension reduction can be continuously used.
Further, still see fig. 1 and 2, in the printing screen, grooves 10 are respectively formed in four inner side walls of a screen frame 1, heating rods 4 are embedded in the grooves 10, gaps between the grooves 10 and the heating rods 4 are filled with heat conducting grease 5, heat generated by the heating rods 4 is guaranteed to be rapidly transferred to the screen frame 1, a thermocouple 11 of a temperature detector is arranged on the upper surface of the screen frame 1, and a heating controller 8 can realize constant-temperature heating of the screen frame through feedback data of the thermocouples 11. The type of this half tone silk screen is the composite construction that polyester silk screen 2 and stainless steel wire net 3 constitute, is equipped with printing pattern 9 on the stainless steel wire net 3, utilizes the great physical characteristic of metal material coefficient of thermal expansion, adopts the mode of heating to make the screen frame size grow, carries out the secondary to polyester silk screen 2 and stretches, promotes the silk screen tension of half tone, realizes the regulation effect to tension to make the half tone that printing accuracy is variation because of tension decline can continue to use, prolonged the life of half tone, practiced thrift the cost, the practicality is strong.
The printing screen plate is realized by selecting a proper polyester screen 2 and a proper stainless steel screen 3 according to printing requirements, manufacturing a composite screen structure according to tension requirements, burying a heating rod 4 in a groove 10, filling heat conduction grease 5, pasting a heat insulation adhesive tape 6, arranging a thermocouple 11 on the surface of a screen frame 1, connecting the heating rod 4, the thermocouple 11 and a heating controller 8 by using a control wire 7, and adjusting the tension of the screen, so that the screen plate with reduced printing precision due to reduced tension can be continuously used. Among them, the heating rod 4, the thermocouple 11 and the heating controller 8 are commercially available kits.
In a word, the tension-adjustable printing screen plate of the invention utilizes the characteristic of larger thermal expansion coefficient of metal materials by embedding the heating rod in the screen frame, realizes the adjustment function of the tension of the screen by adopting a heating mode, has the advantages of simple structure, convenient operation, low cost and the like, can greatly prolong the service life of the screen plate and reduce the use cost.
The above technical solution only represents the preferred technical solution of the present invention, and some changes that may be made by those skilled in the art to some parts of the technical solution represent the principles of the present invention, and the technical solution falls within the scope of the present invention.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112814.3A CN110696482B (en) | 2019-11-14 | 2019-11-14 | A printing screen with adjustable tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112814.3A CN110696482B (en) | 2019-11-14 | 2019-11-14 | A printing screen with adjustable tension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110696482A CN110696482A (en) | 2020-01-17 |
| CN110696482B true CN110696482B (en) | 2025-01-21 |
Family
ID=69205034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911112814.3A Active CN110696482B (en) | 2019-11-14 | 2019-11-14 | A printing screen with adjustable tension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110696482B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI789755B (en) * | 2021-05-12 | 2023-01-11 | 國巨股份有限公司 | Temperature controlled stretching machine and stretching method using the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716847A (en) * | 2009-06-30 | 2010-06-02 | 四川虹欧显示器件有限公司 | Screen plate for screen printing and making method thereof |
| CN108749276A (en) * | 2018-08-17 | 2018-11-06 | 昆山良品丝印器材有限公司 | A kind of polyimides solar energy halftone and production method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000177099A (en) * | 1998-12-16 | 2000-06-27 | Sonocom Co Ltd | Combination screen printing plate having a plurality of extensible cushion members |
| CN101355854A (en) * | 2007-07-27 | 2009-01-28 | 富葵精密组件(深圳)有限公司 | Screen printing method for circuit boards |
| TWM463666U (en) * | 2013-05-24 | 2013-10-21 | Te-Mu Wu | Printing screen plate mother-child frame body having multiple screen plate tension regulation |
-
2019
- 2019-11-14 CN CN201911112814.3A patent/CN110696482B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716847A (en) * | 2009-06-30 | 2010-06-02 | 四川虹欧显示器件有限公司 | Screen plate for screen printing and making method thereof |
| CN108749276A (en) * | 2018-08-17 | 2018-11-06 | 昆山良品丝印器材有限公司 | A kind of polyimides solar energy halftone and production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110696482A (en) | 2020-01-17 |
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