CN2146016Y - Special drawing exposure hole head - Google Patents

Abstract

The utility model provides an exposure hole head applied to drawing printed films. The special drawing exposure hole head is provided with a connection block which can be connected with the traction bracket of the drawing arm of a light drawing device in a magnetism mode, and a template which is simultaneously provided with various exposure holes is arranged on the connection block. The exposure hole on the template presents rectangular phalanx type arrangement, and each light hole stands for a drawing pen diameter specification or some a graphic symbol. When the exposure hole head is used, the switching of the light path of the needed light hole is selected through a converting switch according to software design requirements, and further a pattern is directly drawn on a photosensitive film.

Description

Special drawing exposure hole head

The utility model belongs to the field of drawing of Butut lithographic film, particularly a kind of special-purpose exposing opening head of being handled by the computing machine pen control circuit of drawing.

Along with the develop rapidly of electronic technology and the widespread use of computer technology, computer-aided design (CAD) (CAD, TRAX, TANGO, SMARTWORK etc.) had become the important means of numerous areas scientific researches such as machinery, electronics and production already.In order to adapt to the application of popular now various version computer software, optical plotter is undoubtedly a kind of outstanding product as the graphical output device of printed board design system, and it can be painted the figure direct sunshine that comes out according to computer software design on the sensitive film at high speed.The utility model deviser once disclosed a kind of optical plotter product in Chinese patent CN91205270.9 text, the essence of its structure is transformed the common planar plotting apparatus, after being provided with the light seal ruling pen of light-emitting component and plus lens class device in changing the outfit upward, can on sensitive film, draw out various figures and literal.The weak point that this product also exists in actual use is: owing to be subjected to the restriction of penholder structure, optical plotter once can only use eight light pens that core diameter is different simultaneously, promptly only there are eight kinds of specifications in the pen footpath with its graphing, so still can not satisfy multiple quality and accuracy requirement in the draw craft process.

The purpose of this utility model is to design the special-purpose exposing opening head of drawing that a kind of structure is more simple, operation is more convenient, precision is also more good on the basis of existing technology.

Goal of the invention of the present utility model is achieved in that this exposing opening head has a coupling block that can connect with optical plotter paint arm draw support magnetic, on this coupling block, be provided with a template that has multiple exposure hole simultaneously, each unthreaded hole on the template is represented a kind of ruling pen footpath specification or a certain graphical symbol, select the light path break-make of required unthreaded hole according to software design requirement by switch during use, so on sensitive film direct graphing.

Below with reference to accompanying drawing the utility model content is further described.

Fig. 1 is the structural representation of a specific embodiment of the utility model.

Fig. 2 is that bowing of Fig. 1 structure cutd open figure.

Fig. 3 is the synoptic diagram of unthreaded hole formwork structure among Fig. 1.

With reference to accompanying drawing, the top of this exposing opening head coupling block is provided with magnetic piece 5, realizes that by magnetic piece 5 exposing opening head connects with the magnetic of optical plotter paint arm draw support during work.On the exposing opening head coupling block, be provided with a secondary circuit of light sources welding plate 1, the bottom of this plate 1 is the matrix form arrangement and is inserted with a plurality of luminotrons 2, under all luminotrons 2, press and be provided with a unthreaded hole template 3, each is unequal in the aperture in the hole 31 of opening the light on the template 3, represent a kind of ruling pen footpath specification or a certain graphical symbol respectively, template unthreaded hole 31 be provided with number and arrangement position all with its on luminotron corresponding.The luminotron 2 that the light source plate plugs for 1 time generally can be the box formation arrangement of n rank together with the position form in the hole 31 of opening the light on the template, the number value of n is at least 4 during actual processing, promptly this photohead has the unthreaded hole model more than 16 kinds or 16 kinds, and given embodiment is the version of square formation exponent number value n=4 in the accompanying drawing.Number in the figure 4 is a ratchet-type switch of being located on the coupling block, links up the relation that electrically connects between optical plotter driving circuit and luminotron with this in the work, promptly selects decision to some template unthreaded hole 31 power supplies according to the state of plotting apparatus.The spacing of 16 template unthreaded holes 31 is constant on this exposing opening head, magnetic piece 5 can be done equidistant translation at the driving lower edge of interface software paint arm draw support bottom surface, the coincidence contraposition that so can be convenient to unthreaded hole 31 imaging centers of different size is handled, and then improves the draughting accuracy of optical plotter.

In the use, promptly replace original light after exposing opening head is installed on optical plotter or the plotting apparatus and painted pen or ruling pen, it is by corresponding unthreaded hole 31 usefulness light beam scan film (vector heart), and scanned film constitutes eye diagram after developing, can directly be applied in the post-production production process.

Compared with prior art, exposing opening head described in the utility model is convenient to design processing, cost is low, unthreaded hole is painted the core specification have been increased more than one times, thereby has an extremely strong practicality, its product can be widely used in the manufacture craft of printed circuit board (PCB), braiding making sheet, the hydrology and surveying and mapping or making sheet, surface printing (such as the panel of instrument and meter, dial plate etc.), can be used in addition other any drafting of being finished figure (vector) by CAD.

Claims (3)

1, the special-purpose exposing opening head of a kind of drawing, has a coupling block that can connect with optical plotter paint arm draw support magnetic, it is characterized in that having on the coupling block a secondary circuit of light sources welding plate (1), be the matrix form arrangement in the bottom of plate (1) and be inserted with a plurality of luminotrons (2), under all luminotrons (2), press and be provided with a unthreaded hole template (3), hole (31) core diameter that opens the light on the template (3) is different, its be provided with number and arrangement position all with its on luminotron corresponding; On coupling block, also be provided with the ratchet-type switch (4) of UNICOM's optical plotter driving circuit and each luminotron (2).

2, exposing opening head as claimed in claim 1 is characterized in that set luminotron (2) is the box formation arrangement of n rank under the plate (1).

3, exposing opening head as claimed in claim 2 is characterized in that arrangement square formation exponent number n 〉=4 of set luminotron (2) under the plate (1).

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