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Screen printing apparatus

A technology of screen printing and equipment, applied in screen printing, screen printing machines, printing, etc., can solve problems such as paste leakage and protrusion, and achieve desirable printing effects

Inactive Publication Date: 2007-09-19
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As such, a problem with conventional closed-type extrusion heads is that the paste leaks or bulges out as the paste is squeezed inside the extrusion head.

Method used

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  • Screen printing apparatus
  • Screen printing apparatus
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Next, embodiments of the present invention will be described with reference to these drawings. Figure 1 is a front view of a screen printing device according to an embodiment of the present invention, Figure 2 is a side view of a screen printing device according to an embodiment of the present invention, and Figures 3, 4 and 7 are screen printing devices according to an embodiment of the present invention 5 and 6 are views for explaining the operation of the screen printing apparatus according to the embodiment of the present invention.

[0037] First, the structure of the screen printing apparatus will be described with reference to FIG. 2 . In FIGS. 1 and 2, the positioning section 1 for a substrate is constituted by disposing the substrate holding section 2 on an unillustrated moving table. The substrate 3 to be screen-printed is held by the holder 4 of the substrate holding portion 2 . The substrate 3 thus held by the clampers 4 of the substrate holding portion 2 ...

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PUM

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Abstract

A screen printing apparatus in which a squeegee head 13 is moved on a mask plate 12 thereby to print paste on a substrate through pattern holes 12a, slide contact portions 37A and 37B form respectively front and rear walls in the squeegeeing direction of a printing space 35 which reserves cream solder 5 therein and makes the cream solder contact with the surface of the mask plate 12 through an opening portion formed at the lower surface thereof. Each of the slide-contact portions is configured by a partition plate 39 for partitioning between the printing space 35 and the outside and a filling block 38 having a filling surface 38a which forms an acute angle with respect to the surface of the mask plate 12. In the squeegeeing operation, the filling surface 38a rolls the cream solder 5. Thus, the cream solder 5 can be filled into the pattern holes 12a without pressurizing the cream solder, and a problem caused by the leakage of the cream solder can be eliminated.

Description

technical field [0001] The present invention relates to a screen printing apparatus and a screen printing method for printing paste such as solder paste or conductive paste on a substrate. Background technique [0002] In electronic part mounting processes, a screen printing method is employed as a method of printing paste such as solder paste or conductive paste on a substrate. The screen printing method is carried out in such a manner that a mask plate in which pattern holes are punched according to parts to be printed is set on a substrate, and the paste is passed through the pattern holes of the mask plate by a squeezing process (squeegeeing process). agent printed on the substrate. [0003] As for the extrusion method for screen printing, a method using a closed type extrusion head is known. According to this method, unlike the usual screen printing method, the paste is not directly applied to the mask, but an extrusion head in which the paste is preserved is used. G...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F15/46B41F15/40B41F15/08B41F15/42B41F15/44H05K3/12H05K3/34
CPCB41P2215/132H05K3/1233H05K2203/0139B41F15/42H05K2203/0126B41F15/46
Inventor 阿部成孝官原清一大武裕治坂本博利
Owner PANASONIC CORP
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