SU1555023A1 - Method of producing perforated foiled materials - Google Patents

Abstract

The invention relates to the manufacture of printed circuit boards used in electronics, instrumentation, computing and automation. The purpose of the invention is to simplify the production technology of printed circuit boards, increase productivity and improve the quality of holes in printed circuit boards. The metal foil is punched, the substrate is formed during the formation of a perforated plate with holes in the grid nodes. The apertures are filled with low viscosity, cold curing in elastic polymeric composition, for example "Vixint U-1-18". A metal foil is glued to both sides of the substrate. The upper elongated punches installed in the holes of the upper punch holder and the upper die are punched in the upper layer of metal foil according to a predetermined pattern. Punch holes in the lower layer of metal foil according to a given pattern with lower shortened punches. The upper dies and the lower punch are removed and the upper elongated punches are pushed out of the holes of the substrate with an elastic polymer composition. The technology is simplified by installing punches in the punch holder according to a predetermined pattern of holes in the board. Labor productivity is increased by speeding up the replacement of the pattern of punches. The quality of the holes is enhanced by pre-punching holes in the substrate.

Description

The invention relates to the manufacture of printed circuit boards used in electronics, instrumentation, computing and automation, for example, in the manufacture of computers, plotters, and the like.

The purpose of the invention is to simplify the technology, increase the productivity and quality of the holes.

Figure 1 shows a perforated substrate; Fig 2 - view A on

figure 1; in fig. 3 — substrate with holes filled with an elastic composition; in fig. 4 — substrate with holes filled with an elastic composition and glued foil; Fig, 5 - punching punches of the upper and lower layers of the foil; figure 6- - pushing the upper punches out of the holes of the substrate elastic material; in fig. 7 - substrate with holes made according to a predetermined pattern; in fig. 8 - rachrez B - B in Fig.7,

uh

here

The method of making holes in the foiled materials is carried out as follows.

In the process of manufacturing the substrate 1, for example, from a getinax, holes 2 are made in it in the grid nodes, for example, using a form with pins, and after polymerization of the binder (resin), getinax sheets are made with holes (Fig. 1 and 2 ) „

The perforated substrate 1 is mounted on the base 3 and all the holes 2 are washed down with a low-viscosity polymeric compound 4, for example Vicxint U-1-18, which is vulcanised in cold and after 1 h turns into an elastic, rubber-like insulating material (Fig. 3), Then, metal foil 5 is glued to both sides of the substrate 1 (FIG. 4).

In the hole of the upper punch 6 and the upper die 7, elongated punches 8 are installed according to a predetermined hole pattern. Shortened punches 10 are installed in the holes of the lower punch holder 9, after which the punch holder 9 is installed on the base 11, and substrate 1 is installed on the punch holder in such a way that the punches 10 are positioned exactly against the holes 2 of the substrate I. This is achieved with the help of the mounting holes, the substrate, the holders 6 n 9, the die 7 and respectively having a speaker,

Using the upper plate 12 of the manual roll, the upper punches 8. pierce the holes in the upper layer of the metal foil 5 according to a predetermined pattern ,, and the lower shortened punches 10 pierce the holes in the lower layer of the metal foil 5о. At the same time, the upper 8 and lower 10

the punches do not close, and between them remains a gap filled with polymer composition 4 (Fig. 5). Then, the upper plate 12 of the hand roll is raised together with the punch holder 6 and the punch 8, the matrix 7 and the lower punch 10 are removed from the lower punch 12 of the manual roll, and the upper punches 8 push the elastic polymer composition 4 out of the holes 2 of the substrate 1 (FIG. 6). The foil material with holes is shown in FIGS. 7 and 8.

5 The method of making holes in foil materials allows to simplify the technology, increase the productivity and quality of foil materials.

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Claims (1)

Invention Formula 1 "Method of manufacturing perforated foil materials, 5 which includes the manufacture of foiled materials from a substrate and metal foil, punching holes with punches and waste disposal, characterized in that 0 Simplification of technology, improvement of productivity and quality of materials, in the manufacture of foiled materials, pre-perforate the substrate, the holes obtained 5 is filled with a low-viscous, cold-vulcanizing, elastic polymer composition, the layers of metal foil are glued on the upper and lower sides, the punching is carried out 0 punches placed on the upper and lower sides of the foiled material when they move counter to face, while preventing their closure, waste is removed by the upper punches. 45 2, the method according to claim 1, about tl and h. Shch and so that the holes are filled with Vaxint Y-1-18. t 1205551 B GS VQW I Wtb I / Heaven 6 Rig. eight Editor V. Bugrenkova Compiled by A. Borisov Tehred, M, Khodanych Proofreader V. Kabatsy Order 521 Circulation 618 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, g, Uzhgorod, st. Gagarin, 101 y2% - 12 Subscription