CN201320865Y

CN201320865Y - Laser engraving machine for gravure cylinder

Info

Publication number: CN201320865Y
Application number: CNU2008201393205U
Authority: CN
Inventors: 王有国; 李全贵; 靳利增
Original assignee: BEIJING KAITENG FINE PLATEMAKING Co Ltd
Current assignee: BEIJING KAITENG FINE PLATEMAKING Co Ltd
Priority date: 2008-10-29
Filing date: 2008-10-29
Publication date: 2009-10-07
Anticipated expiration: 2018-10-29

Abstract

The utility model relates to gravure plate-making equipment, and aims to provide a laser engraving machine for gravure cylinder with high resolution, high efficiency and high automation degree. The engraving machine comprises a laser system, a mechanical system and a control system; lasers emitted from a laser are focused on a printing roller bus through a modulator, a beam expanding lens and a focus mirror; the printing roller is clamped tightly by the finials of a principal shaft on the head and the rear frames, and is driven by the principal shaft to rotate; a small vehicle which can axially move along the printing roller is mounted on a bedway; a guide rail and a sliding table which can move along the printing roller radially is mounted on the small vehicle; the laser system is mounted on the sliding table; and the sliding table is driven by the motor and a lead screw so as to enable the lasers focused on the printing roller bus to move axially and radially along the printing roller.

Description

Laser recess engraving machine

Technical field

The utility model relates to a kind of gravure plating equipment, especially carries out the machine of recess engraving on printing plate cylinder with laser.

Background technology

Intaglio plate is divided into carved intaglio and etching plate by mask-making technology.Carved intaglio has hand engraving intaglio plate, mechanical engraving intaglio plate and electronic engraving intaglio plate.The etching plate technology has traditional photography gravure plate-making technology and the direct screening plate-making technology of taking a picture.At present, the most frequently used is the electromechanical engrave of adopting electromagnetic field control diamond graver.This engraving technology has more outstanding IMAGE REPRODUCTION quality, more stable reliable engraving quality and higher carving efficiency, can realize the engraving screen density (the general screen density that adopts 175 ~ 200 line/inches in the practical application) of 100 ~ 350 line/inches, but do not possessing advantage aspect the engraving of literal and fine pattern, because the engraving lack of resolution of 175 ~ 200 line/inches commonly used is ideally to reproduce text profile, cause the appearance of toothed edge phenomenon, problem is more outstanding when particularly carving the literal of small type size.The laser recess engraving makes full use of the high-resolution of laser recording, makes laser paint ink cell profile, literal, the graph outline of ablating out at base and reaches high accuracy, and fine this problem that solved also has certain relevant addressing in patent CN2780461Y.

Summary of the invention

The purpose of this utility model provides a kind of resolution ratio height, efficient height, laser recess engraving machine that automaticity is high.

Laser recess engraving machine is to use one or more high energy laser beam; formerly apply the version roller surface of fast black base enamelled coating; go out the ink cell zone with laser ablation; make the copper layer at ink cell place expose out; non-ink cell place is against corrosion by the protection of base lacquer; can obtain recessed ink cell after waiting to corrode; it includes laser system; mechanical system and control system; the laser that is penetrated by laser instrument is through modulator; beam expanding lens; focus lamp; finally focus on edition roller bus; the version roller is supported by the lathe headstock and tailstock and drives rotation by spindle motor; focus on laser on edition roller bus at guide rail upper edge version roll shaft to moving; the lathe headstock and the tailstock that it is characterized in that main shaft is housed and be installed top are installed on the bed ways; driving it by frame motor and leading screw end to end does in opposite directions or reverse motions; and this leading screw is two; one left-handed; a dextrorotation; connect by shaft coupling; on the lathe headstock spindle drive motor is housed; rotate by belt wheel and band drive shaft; encoder is housed on the main shaft; be installed on the bed ways and can drive by trolley drive motor and dolly leading screw along the axially movable dolly of version roller; the slide unit guide rail that moves radially along the version roller is installed on the dolly; slide unit is installed on the guide rail; slide unit is driven by slide unit drive motors and slide unit leading screw; laser system is installed on the slide unit; drive slide unit by radial motor and leading screw and move radially, by the slide unit focus lamp, the noncontacting proximity sensor of induction version roller position is installed along the version roller.

The utility model is by the frame motor-driven lathe headstock and tailstock are done in opposite directions or reverse motions end to end, can realize rapid-mounted, accurately measure an edition roller bus position by the encoder on the main shaft, by vehicle motor and leading screw accurately control dolly along the version roll shaft to move, and, just can realize that through control system high accuracy, high efficiency and the high automation of laser recess engraving machine moves by the accurate focusing of the noncontacting proximity sensor control laser of induction version roller position.

Description of drawings

Fig. 1 is the front view of the utility model embodiment.

Fig. 2 is the vertical view of the utility model embodiment.

Fig. 3 is the side view of the utility model embodiment.

Wherein:

1, lathe bed; 2, frame drive motors end to end; 3, encoder;

4, the headstock; 5, top; 6, slide unit guide rail;

7, slide unit; 8, left-handed leading screw; 9, shaft coupling;

10, dextrorotation leading screw; 11, version roller; 12, tailstock;

13, spindle drive motor; 14, induction version roller position sensor; 15, slide unit leading screw;

16, laser instrument; 17, modulator; 18, beam expanding lens;

19, focus lamp; 20, bed ways; 21, slide unit drive motors;

22, dolly leading screw; 23, trolley drive motor; 24, main shaft drives belt wheel;

25, main shaft drives band; 26, main shaft driven pulley.

The specific embodiment

At first starting end to end, frame drive motors 2 moves to the appropriate location with the headstock 4 and tailstock 12, the plate roller 11 that applies the fast black base enamelled coating is installed top 5, start frame drive motors 2 end to end once more, the headstock 4 and tailstock 12 are moved in opposite directions clamps plate roller 11, start spindle drive motor 18 through main shaft drives belt wheel 24, main shaft drives band 25, main shaft driven pulley 26 drives the plate roller and rotates, start trolley drive motor 23 dolly is moved on to plate roller one end, start slide unit drive motors 21 make slide unit 7 and on laser system near the side bus of plate roller 11, send signal when arriving focal position induction version roller position sensor 14, slide unit 7 stops to move, at this moment laser instrument 16 is opened, laser is through modulator 17, beam expanding lens 18, focus on behind the focus lamp 19 on the side bus of plate roller 11, by the control of modulator 17, just can go out the literal and the pattern of needs at plate roller 11 ablated surfaces.

Claims

1, laser recess engraving machine, it includes laser system, mechanical system and control system, the laser that is penetrated by laser instrument is through modulator, beam expanding lens, focus lamp, finally focus on edition roller bus, the version roller is supported by the lathe headstock and tailstock and drives rotation by spindle motor, focus on laser on edition roller bus at guide rail upper edge version roll shaft to moving, it is characterized in that: the lathe headstock and the tailstock that main shaft are housed and are installed top are installed on the bed ways, driving it by frame motor and leading screw end to end does in opposite directions or reverse motions, on the lathe headstock spindle drive motor is housed, rotate by belt wheel and band drive shaft, encoder is housed on the main shaft, be installed on the bed ways and can drive by trolley drive motor and dolly leading screw along the axially movable dolly of version roller, the slide unit guide rail that moves radially along the version roller is installed on the dolly, slide unit is installed on the guide rail, slide unit is driven by slide unit drive motors and slide unit leading screw, laser system is installed on the slide unit, driving slide unit by radial motor and leading screw moves radially along the version roller, by the slide unit focus lamp, the sensor of induction version roller position is installed.

2, as claims 1 described laser recess engraving machine, it is characterized in that it is two that the described driving headstock and tailstock move leading screw, one is left-handed, and a dextrorotation is connected by shaft coupling.

3,, it is characterized in that the described sensor that induction version roller position is installed is contactless as claims 1 described laser recess engraving machine.