CN2361465Y

CN2361465Y - Gravure prefabricated photosensitive laser platemaking machine

Info

Publication number: CN2361465Y
Application number: CN 99203288
Authority: CN
Inventors: 谢志宏
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-02-11
Filing date: 1999-02-11
Publication date: 2000-02-02
Anticipated expiration: 2009-02-11

Abstract

The utility model relates to a gravure making device which is provided with a laser scanning system and a light receiving device for interface, wherein, the light receiving device for interface comprises a roller, a movable main shaft, a movable main shaft sleeve, a movable main shaft base, a base, scanning interface positioning wheels, driving gear sets, a gear base, a motor, a synchronizing shaft and a synchronizing shaft extending sleeve. The roller is sheathed on the main shaft, the main shaft sleeve is arranged on a main shaft sleeve track, the main shaft base is arranged on a main shaft seat track of the base, the scanning interface positioning wheels and the driving gear sets are respectively arranged on the inner and the outer sides of the gear base, the motor is connected to one of driving gear sets, and the synchronizing shaft extending sleeve is sheathed on one end of the synchronizing shaft. The utility model makes the pattern conversion of gravure making process more stable and has the advantages of short construction period and low cost.

Description

The prefabricated sensitization laser platemaker of gravure

The utility model relates to a kind of gravure plating device.

Existing gravure plating mode has electronic engraving, carbon tissue to make, spray glue by hand to make by hand etc., and wherein electric carver's skill is very stable on pattern transfer, but operation is numerous and diverse, and the cycle is long, the cost height; The pattern transfer instability of carbon tissue technology, operation is numerous and diverse equally, the cycle is long; And spray-bonding craft is more unstable on pattern exposure.

Set laser technology and Electronic Photographing Technology laser printer is widely used, and it is made up of laser scanning system and electrofax transferring system two parts.The effect of laser scanning system is to send interface circuit to come binary array information to be modulated on the laser beam, scans on the photoreceptor then.Photoreceptor and electrofax mechanism form the electrofax transferring system, and its effect is that the picture and text reflection that will be mapped on the photosensitive drums is transferred on the printing paper.The composition and the operation principle of laser scanning system are seen Fig. 1, it is made up of laser instrument, speculum, audio-optical deflection modulator, multiple surface rotating mirror, wide-angle focusing mirror, synchronized, power amplifier, frequency synthesizer, oscillator, character generation unit, interface controller, computer, injects the audio-optical deflection modulator by the laser beam of laser instrument output through speculum.The binary system picture and text lattice information that is come by computer is delivered to character generation unit by interface simultaneously, forms the binary pulse information of the font that needs.Synchronizing signal control high-frequency generator group by synchronized produces is added on the audio-optical deflection modulator through frequency synthesizer and power amplifier again, and the laser beam of being injected by speculum is modulated.Light beam after the modulation is injected multiple surface rotating mirror, by the wide-angle focusing mirror light beam is focused on again and be mapped to photoreceptor (laser printer employing photoconductor drum) surface, make angular speed scanning become linear velocity scanning, thereby finish whole scanning process and (see that horse very instructs, the printer applications conference, Fujian science tech publishing house).

The purpose of this utility model aims to provide the prefabricated sensitization laser platemaker of gravure that a kind of pattern transfer is stable, cost is low, the duration is short.It is on the basis of existing laser photocomposing machine, scanning light source is transformed into the light source that can make the exposure of color printing PS version photoresists, to be subjected to light interface (as toner cartridge, laser photo-typesetting film sensitive surface) to be transformed into the device that can make the gravure cylinder photoreceiving surface again, make the binary system picture and text lattice information that comes by computer by laser scanning, on the cylinder that is coated with PS version photoresists, form required picture and text, finish this operation by the gravure plating technology more thereafter.

The utility model comprises laser scanning system and interface infrared rays receiver, and wherein laser scanning system adopts the laser scanning system of laser printer; The interface infrared rays receiver is provided with cylinder, movable main shaft, movable collar bush, movable spindle drum, base, scanning interface locating wheel, driving gear set and pinion stand, motor, synchronizing shaft and synchronizing shaft extension socket.Movable main shaft on the drum sleeve, movable collar bush is on movable collar bush track, movable spindle drum places on the movable spindle drum track of base, scanning interface locating wheel and driving gear set are arranged at the interior outside of pinion stand respectively, motor is connected to wherein one group of driving gear set, the synchronizing shaft extension socket is sheathed on an end of synchronizing shaft, scanning interface locating wheel is reduced to by movable collar bush in the cylinder surface two ends, the axle center of the axle center of movable main shaft and scanning interface locating wheel is at same vertical line, and the lower surface of cylinder is aimed at the laser scanning mirror of laser scanning system.

The utility model utilizes the operation principle of laser photocomposing machine, scanning light source is transformed into the light source that can make the exposure of color printing PS version photoresists.By movable mainshaft mechanism, allow the cylinder surface two ends reduce to scanning interface locating wheel, rotated by locating wheel power drive constant speed, accept the scanning ray of laser scanning system, reach the exposure purpose, thereby reach the result who on the gravure cylinder that is coated with PS version photoresists, forms required pattern, then carry out photographic fixing, solid glue and corrosion again, promptly finish intaglio plate manufacturing process.Compare with intaglio plate manufacture crafts such as existing electric carving, carbon tissue and spray glue, the utility model makes the pattern transfer of intaglio plate manufacture craft more stable, and the duration shortens, and cost reduces.

Fig. 1 is the structure principle chart of laser scanning system.

Fig. 2 is the structure principle chart of interface infrared rays receiver.

The utility model is made up of laser scanning system and interface infrared rays receiver two parts.As Fig. 1, laser scanning system adopts the laser scanning system of laser printer, is made up of laser instrument 1, speculum 2, audio-optical deflection modulator 3, multiple surface rotating mirror 4, wide-angle focusing mirror 5, synchronized 6, power amplifier 7, frequency synthesizer 8, oscillator 9, character generation unit 10, interface controller 11 and computer 12.Can adopt semiconductor laser.The audio-optical deflection modulator is modulated the laser beam of being injected by speculum that contains graph text information, 9 high-frequency signals that the synchronizing signal control generator group that is produced by synchronized produces are again through being added on the audio-optical deflection modulator behind frequency synthesizer and the power amplifier.Light beam after the modulation is injected multiple surface rotating mirror, light beam is focused on the photoreceptor that is mapped to the interface infrared rays receiver by the wide-angle focusing mirror again---on the cylinder.Above-mentioned detailed structure is omitted.

As Fig. 2, the interface infrared rays receiver is made up of with pinion stand 20, motor 21, synchronizing shaft 22 and synchronizing shaft extension socket 23 etc. cylinder 13, movable main shaft 14, movable collar bush 15, movable spindle drum 16, base 17, scanning interface locating wheel 18, driving gear set 19.Movable main shaft on the drum sleeve, movable collar bush is on movable collar bush track 151.Movable spindle drum places on the movable spindle drum track 171 of base, and scanning interface locating wheel and driving gear set are arranged at the interior outside of pinion stand respectively, and motor is connected to wherein one group of driving gear set.The synchronizing shaft extension socket is sheathed on an end of synchronizing shaft.Scanning interface locating wheel is reduced to by movable collar bush in the cylinder surface two ends, and the axle center of the axle center of movable main shaft and scanning interface locating wheel is at same vertical line, and the lower surface of cylinder is aimed at laser scanning mirror---the wide-angle focusing mirror 5 (referring to Fig. 1) of laser scanning system.When movable collar bush on movable collar bush track during landing downwards, the cylinder surface two ends are reduced on the scanning interface locating wheel, are subjected to the locating wheel power drive and constant speed is rotated, and accept the scanning ray of laser scanning system, reach the exposure purpose.Because location power rotating speed is fixed, thus the speed of cylinder surface to be able to the signal that sends with computer synchronous.Because the axle center of the axle center of main shaft and locating wheel is at same vertical line, the distance of scanning ray is constant between scanning interface and probe.And movable collar bush makes the diameter of cylinder unrestricted in certain scope the moving up and down of movable collar bush track.Laterally moving of movable spindle drum makes the length of cylinder unrestricted in confining spectrum.The synchronizing shaft extension socket acts on drum length different the time.

During use, produce earlier required pattern on computers; Again by the utility model with the pattern scan exposure on the gravure cylinder that has been coated with the PS photoresists; And the cylinder after will exposing shows, after the photographic fixing, the solid glue of baking or (in the ink isolation technics of the glue face that need not corrode by color printing) cover last layer printing ink and form and protect; Final etching becomes spendable finished product.

Claims

1. the prefabricated sensitization laser platemaker of gravure, comprise laser scanning system, it is made up of laser instrument, speculum, audio-optical deflection modulator, multiple surface rotating mirror, wide-angle focusing mirror, synchronized, power amplifier, frequency synthesizer, oscillator, character generation unit, interface controller, computer, it is characterized in that being provided with the interface infrared rays receiver, the interface infrared rays receiver comprises cylinder, movable main shaft, movable collar bush, movable spindle drum, base, scanning interface locating wheel, driving gear set and pinion stand, motor, synchronizing shaft and synchronizing shaft extension socket; Movable main shaft on the drum sleeve, movable collar bush is on movable collar bush track, movable spindle drum places on the movable spindle drum track of base, scanning interface locating wheel and driving gear set are arranged at the interior outside of pinion stand respectively, motor is connected to wherein one group of driving gear set, and the synchronizing shaft extension socket is sheathed on an end of synchronizing shaft; The axle center of the axle center of movable main shaft and scanning interface locating wheel is on same vertical line, and the lower surface of cylinder is aimed at the laser scanning mirror of laser scanning system.