CN206357784U - A kind of screen printer screen structure - Google Patents

Abstract

The utility model discloses a kind of silk screen fixation and the screen printer screen structure that will not be had any impact to the installation and removal of half tone.The screen printer screen structure, including silk screen and for fixing the frame of silk screen, silk screen upper surface scribbles one layer of light-sensitive surface, in fixed silk screen, silk screen need to be only clipped between upper side frame and lower frame, then vertical fix bar is put into the first groove and the second groove, horizontal fix bar is inserted in the 4th groove simultaneously, then by baffle plate, clamp nut is sequentially sleeved in vertical fix bar, and tighten clamp nut, just together with upper side frame can be tightly secured in lower frame, and then silk screen is fixedly clamped, it ensure that printing quality, in addition, vertical fix bar, horizontal fix bar is located in groove, baffle plate, clamp nut is located in blind hole, the place of any protrusion is not had, the installation and removal of half tone will not be had any impact.It is adapted in the field popularization and application of silicon chip of solar cell process equipment.

Description

A kind of screen printer screen structure

Technical field

The utility model is related to silicon chip of solar cell process equipment field, especially a kind of screen printer screen structure.

Background technology

PN junction has been made after the processes such as making herbs into wool, diffusion and PECVD in solar cell, and electricity can be produced under light illumination Stream, in order to which the electric current of generation is exported, it is necessary to make positive and negative two electrodes on battery surface.The method for manufacturing electrode is a lot, And silk-screen printing is a kind of current making most common production technology of solar cel electrode.Silk-screen printing is by the way of impressing By predetermined graphic printing on substrate, the equipment by the silver-colored aluminium paste printing of cell backside, the printing of cell backside aluminium paste and battery just Face silver paste prints three parts composition.Its operation principle is：Slurry is passed through using silk screen visuals mesh, with scraper in silk screen Slurry position applies certain pressure, while being moved towards the silk screen other end.Slurry is on the move by scraper from the mesh of visuals In be expressed on substrate.Because the viscous effect of slurry makes trace set within the specific limits, printing middle scraper all the time with silk screen Printing plate and substrate are linearly contacted, and contact line is moved and moved with scraper, so as to complete print stroke.Main application is such as Under：In (the p areas) of cell piece, print electrode wire；Back electrode (is removed using aluminum slurry printing front in (the p areas) of cell piece Outside)；) with silver paste print several rows of evenly spaced thin grid line and main gate line in (the n areas) of cell piece.Silicon solar cell is given birth to Silk-screen printing is the important procedure for producing solar cell, its printing quality (thickness, width, thickness uniformity) influence electricity in production The technical indicator of pond piece.

Half tone is one of key fitment of screen printer, and the half tone of existing screen printer includes silk screen and for fixing silk screen Frame, the silk screen upper surface scribbles and electrode hole is provided with one layer of light-sensitive surface, the light-sensitive surface, and existing electrode hole is general all It is three electrode holes parallel to each other of direct setting, the silicon chip back side being printed to can form three strips electricity parallel to each other Pole, the two ends of each strip electrode all extend to the marginal position of silicon chip, and existing half tone is mostly adopted in fixed silk screen Non-removable mode is used, although can so ensure the quality of printing, the service life of silk screen is substantially less than frame Service life, once need change silk screen when be accomplished by connection frame change together, cause unnecessary waste；Also there is use Demountable structure fix silk screen, but its it is complicated remove and install inconvenience, meanwhile, silk screen fix it is insecure, silk screen is easy Loosen, fastening effect is poor, it is difficult to ensure that the quality of printing.

Utility model content

Technical problem to be solved in the utility model be to provide a kind of silk screen fixation and will not be to half tone installation The screen printer screen structure being had any impact with dismounting.

The utility model solves the technical scheme that its technical problem used：The screen printer screen structure, including silk screen And for fixing the frame of silk screen, the silk screen upper surface scribbles one layer of light-sensitive surface, and the frame includes upper side frame and following Frame, the surrounding of the silk screen is clipped between upper side frame and lower frame, and the upper side frame passes through multiple demountable structures with lower frame It is fixed together, the multiple demountable structure is distributed in the surrounding of upper side frame or lower frame, the demountable structure includes setting Put the first groove of upper side frame outer surface and be arranged on the second groove of lower frame outer surface, the upper end of first groove Face extends to the upper surface of upper side frame, and the lower surface of first groove extends to the lower surface of upper side frame, the upper side frame Upper surface is provided with blind hole, and the bottom of the blind hole extends to the by-level cross section of upper side frame, the cross section of the blind hole Product is more than the rank street area of the first groove, and the upper surface of second groove extends to the upper surface of lower frame, and described second is recessed The lower surface of groove extends to the by-level cross section of lower frame, and the bottom of second groove is provided with the 4th groove, described One groove is identical with groove depth size with the groove width of the second groove and corresponds to up and down, and vertical fixation is provided with first groove Bar, the lower end of the vertical fix bar is extended in the second groove and the lower end of fix bar is fixed with horizontal fix bar, institute vertically State horizontal fix bar to insert in the 4th groove, baffle plate and clamp nut, the horizontal stroke of the baffle plate are arranged with the vertical fix bar Sectional area is more than the cross-sectional area of the first groove, and the baffle plate is respectively positioned in blind hole with nut, the vertical fix bar and fastening Nut is connected through a screw thread.

It is further that the quantity of the demountable structure is eight, and is evenly distributed on the four of upper side frame or lower frame Week.

It is further that the lower surface of the upper side frame and the upper surface of lower frame are provided with anti-slip veins.

It is further that the silk screen surface smear being clipped between upper side frame and lower frame has viscose glue.

It is further that the mesh number of the silk screen is 325 mesh.

The beneficial effects of the utility model are：Silk screen need to be only clipped in by the screen printer screen structure in fixed silk screen Between frame and lower frame, then vertical fix bar is put into the first groove and the second groove, while horizontal fix bar is inserted Enter in the 4th groove, then baffle plate, clamp nut are sequentially sleeved in vertical fix bar, and clamp nut is tightened, just can be with Together with upper side frame is tightly secured in lower frame, and then silk screen is fixedly clamped, when needing to change silk screen without by frame Connection silk screen is changed together, has saved cost, and the mode of this fixed silk screen can firmly fix silk screen, in printing During, silk screen is not in the situation of loosening, it is ensured that printing quality, in addition, vertical fix bar, horizontal fix bar are positioned at recessed In groove, baffle plate, clamp nut are located in blind hole, and the place of any protrusion is not had, the installation and removal of half tone will not be caused Any influence.

Brief description of the drawings

Fig. 1 is the Longitudinal cross section schematic of screen printer screen structure described in the utility model；

Fig. 2 is the top view of screen printer screen structure structure described in the utility model；

Marked in figure：Frame 1, upper side frame 11, lower frame 12, demountable structure 13, the first groove 1301, the second groove 1302nd, blind hole 1303, the 4th groove 1304, vertical fix bar 1305, horizontal fix bar 1306, baffle plate 1307, clamp nut 1308th, light-sensitive surface 2, silk screen 3.

Embodiment

The utility model is further illustrated below in conjunction with the accompanying drawings.

As shown in Fig. 1 to 2, the screen printer screen structure, including silk screen 3 and the frame 1 for fixing silk screen 3, it is described The upper surface of silk screen 3 scribbles one layer of light-sensitive surface 2, and the frame 1 includes upper side frame 11 and lower frame 12, and the surrounding of the silk screen 3 is pressed from both sides On top between frame 11 and lower frame 12, the upper side frame 11 is fixed on one with lower frame 12 by multiple demountable structures 13 Rise, the multiple demountable structure 13 is distributed in the surrounding of upper side frame 11 or lower frame 12, the demountable structure 13 includes setting The first groove 1301 for putting the outer surface of upper side frame 11 and the second groove 1302 for being arranged on the outer surface of lower frame 12, described the The upper surface of one groove 1301 extends to the upper surface of upper side frame 11, and the lower surface of first groove 1301 extends to upper side frame 11 lower surface, the upper surface of the upper side frame 11 is provided with blind hole 1303, and the bottom of the blind hole 1303 extends to upper side frame 11 by-level cross section, the cross-sectional area of the blind hole 1303 is more than the rank street area of the first groove 1301, described second The upper surface of groove 1302 extends to the upper surface of lower frame 12, and the lower surface of second groove 1302 extends to lower frame 12 By-level cross section, the bottom of second groove 1302 is provided with the 4th groove 1304, first groove 1301 and The groove width of two grooves 1302 is identical with groove depth size and corresponds to up and down, and vertical fix bar is provided with first groove 1301 1305, the lower end of the vertical fix bar 1305 is extended in the second groove 1302 and the lower end of fix bar 1305 is fixed with vertically Horizontal fix bar 1306, the horizontal fix bar 1306 is inserted in the 4th groove 1304, is arranged in the vertical fix bar 1305 There are baffle plate 1307 and clamp nut 1308, the cross-sectional area of the baffle plate 1307 is more than the cross-sectional area of the first groove 1301, institute State baffle plate 1307 to be respectively positioned in blind hole 1303 with nut, the vertical fix bar 1305 is connected with clamp nut 1308 by screw thread Connect.Silk screen 3 need to be only clipped between upper side frame 11 and lower frame 12 by the frame 1 of this structure in fixed silk screen 3, then will Vertical fix bar 1305 is put into the first groove 1301 and the second groove 1302, while it is recessed that horizontal fix bar 1306 is inserted into the 4th In groove 1304, then baffle plate 1307, clamp nut 1308 are sequentially sleeved in vertical fix bar 1305, and by clamp nut 1308 Tighten, just upper side frame 11 can be tightly secured in lower frame 12 together with, and then silk screen 3 is fixedly clamped, is needing to change Changed together during silk screen 3 without frame 1 is connected into silk screen 3, saved cost, and the mode of this fixed silk screen 3 can be by Silk screen 3 is firmly fixed, in printing process, and silk screen 3 is not in the situation of loosening, it is ensured that printing quality, in addition, vertically Fix bar 1305, horizontal fix bar 1306 are located in groove, and baffle plate 1307, clamp nut 1308 are located in blind hole 1303, will not There is the place of any protrusion, the installation and removal of half tone will not be had any impact.

In order to ensure the fastening effect of silk screen 3, the quantity of the demountable structure 13 is eight, and is uniformly distributed on top The surrounding of frame 11 or lower frame 12.

In order to further prevent that silk screen 3 loosens in printing process, the lower surface and lower frame of the upper side frame 11 12 upper surface is provided with anti-slip veins.

Further, the surface smear of silk screen 3 being clipped between upper side frame 11 and lower frame 12 has viscose glue, to silk screen 3 Fastening use dual fixation, further prevent that silk screen 3 loosens in printing process.

In addition, the mesh number of silk screen 3 is different, the amount that aluminium paste is passed through is also different, is designed, made by the mesh number to silk screen 3 The printing of the solar cell after 1.2g or so, printing must can be controlled to use back of the body electric field performance most through the weight of the aluminium paste of silk screen Good, to achieve these goals, the mesh number of the silk screen 3 is preferably the weight energy that 325 mesh may be such that the aluminium paste through silk screen Enough control in 1.2g or so.

Claims (5)

1. a kind of screen printer screen structure, including silk screen (3) and the frame (1) for fixing silk screen (3), the silk screen (3) Upper surface scribbles one layer of light-sensitive surface (2), and the frame (1) includes upper side frame (11) and lower frame (12), the four of the silk screen (3) It is clipped in week between upper side frame (11) and lower frame (12), the upper side frame (11) passes through multiple demountable structures with lower frame (12) (13) it is fixed together, the multiple demountable structure (13) is distributed in the surrounding of upper side frame (11) or lower frame (12), it is special Levy and be：The demountable structure (13) includes setting first groove (1301) of upper side frame (11) outer surface and is arranged on down Second groove (1302) of frame (12) outer surface, the upper surface of first groove (1301) extends to upper side frame (11) Upper surface, the lower surface of first groove (1301) extends to the lower surface of upper side frame (11), the upper side frame (11) it is upper Surface is provided with blind hole (1303), and the bottom of the blind hole (1303) extends to the by-level cross section of upper side frame (11), institute The cross-sectional area for stating blind hole (1303) is more than the rank street area of the first groove (1301), the upper surface of second groove (1302) The upper surface of lower frame (12) is extended to, the lower surface of second groove (1302) extends to the by-level of lower frame (12) Cross section, the bottom of second groove (1302) is provided with the 4th groove (1304), first groove (1301) and second recessed The groove width of groove (1302) is identical with groove depth size and corresponds to up and down, and vertical fix bar is provided with first groove (1301) (1305), the lower end of the vertical fix bar (1305) is extended in the second groove (1302) and under vertical fix bar (1305) End is fixed with horizontal fix bar (1306), and the horizontal fix bar (1306) is inserted in the 4th groove (1304), described vertical solid Baffle plate (1307) and clamp nut (1308) are arranged with fixed pole (1305), the cross-sectional area of the baffle plate (1307) is more than first The cross-sectional area of groove (1301), the baffle plate (1307) is respectively positioned in blind hole (1303) with nut, the vertical fix bar (1305) it is connected through a screw thread with clamp nut (1308).

2. screen printer screen structure as claimed in claim 1, it is characterised in that：The quantity of the demountable structure (13) is eight It is individual, and it is evenly distributed on the surrounding of upper side frame (11) or lower frame (12).

3. screen printer screen structure as claimed in claim 2, it is characterised in that：The lower surface of the upper side frame (11) with it is following The upper surface of frame (12) is provided with anti-slip veins.

4. screen printer screen structure as claimed in claim 3, it is characterised in that：It is described to be clipped in upper side frame (11) and lower frame (12) silk screen (3) surface smear between has viscose glue.

5. screen printer screen structure as claimed in claim 3, it is characterised in that：The mesh number of the silk screen (3) is 325 mesh.