CN201183273Y

CN201183273Y - Paper cutter for cutting printing plate material

Info

Publication number: CN201183273Y
Application number: CNU2008200290377U
Authority: CN
Inventors: 马骥; 吕建柏
Original assignee: PINGLIANG HENGDA MACHINE MAKE CO Ltd
Current assignee: PINGLIANG HENGDA MACHINE MAKE CO Ltd
Priority date: 2008-04-29
Filing date: 2008-04-29
Publication date: 2009-01-21
Anticipated expiration: 2018-04-29

Abstract

The utility model provides a paper cutter for cutting printing plate materials, which is composed of a cutting table, a blade, a worktable and a paper pushing machine and is characterized in that the cutter mounting table-board of the cutting table is provided with a negative angle face with the angle Alpha inwards from the edge of a cutting knife. Because the cutter mounting table-board of the cutting table is provided with the negative angle face inwards from the edge of the cutting knife, the paper cutter can well prevent the cutting knife face from metal built-up edges in the cutting process, thereby preventing the problem that the cutting face of CTP printing plate material is pulled and napped, ensuring that the cutting edge has no napping and pulling when cutting the CTP printing plate material and also being suitable for the cutting of PS plates and other metal films.

Description

A kind of paper cutter that cuts printing plate

Technical field

The utility model relates to the cutting apparatus of printing plate, is specifically to be exclusively used in thin metal (≤0.30mm) a kind of paper cutter that cuts printing plate of cutting of printing CTP plate.

Background technology

Digital printed employing CTP CTP system, the CTP technology has improved operating efficiency in process of production significantly, has saved raw-material use, has saved working time and manpower, guarantee higher print quality, brought revolutionary change for the mode of production of press.In the evolution of CTP technology, the CTP plate has also obtained comprehensive development, at present and since the CTP plate directly direct exposure plate-making back on the CTP platemaking machine directly on press printing, so require very high to processing of cutting precision, the cutting edge fineness of plate.When adopting traditional paper cutter to carry out CTP plate processing of cutting, owing to cut thing be≤0.30mm aluminium based metal sheet material, when carrying out processing of cutting, main have a following problem: in the process of cutting because metal cutting moment heating, on the cutting knife back side, easily produce the metal buildup, when cutting continuously, cause cutting thing side cut section plucking or pull in the established buildup of knife back face, it is useless to cause the CTP plate directly to be cut, making the CTP plate can't processing of cutting, be the key problem that influences the crudy of CTP plate.

The utility model content

Technical problem to be solved in the utility model prevents exactly when cutting the CTP plate, the cutting knife face produces the metal buildup, prevent that the CTP plate from cutting being pulled of section, plucking phenomenon, provides to be applicable to a kind of paper cutter that cuts printing plate that cuts the computer master making printing plate.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of paper cutter that cuts printing plate is made up of cutter bed, blade, workbench and feeder, it is characterized in that the dress cutter table top of described cutter bed is established the negative angle face that an angle is α inwards from the cutting knife cutting edge.

Described dress cutter table top is 1 °～5 ° from the angle [alpha] of cutting knife cutting edge negative angle face inwards.

The utility model has designed a negative angle face that angle is α to paper cutter bed dress cutter table top inwards from the cutting knife cutting edge, can prevent well that the cutting knife face produces the metal buildup in the process of cutting, thereby prevent that the CTP plate from cutting that section is pulled, the problem of plucking, guaranteed that when cutting the CTP plate, cutting edge does not have plucking and pulls.This technology also is applicable to that PS version and other metallic film cut.

Description of drawings

Fig. 1 is common paper cutter bed schematic diagram;

Fig. 2 is the paper cutter bed profile of the utility model;

Fig. 3 is common paper cutter profile;

Fig. 4 is the A portion enlarged drawing of Fig. 3;

Fig. 5 is the utility model structural representation;

Fig. 6 is the B portion enlarged drawing of Fig. 5.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

The utility model is at CTP plate processing problems, common paper cutter is improved no meter, as shown in Figure 4, form by cutter bed 1, blade 2, workbench 3 and feeder 4, the dress cutter table top 6 of cutter bed 1 designs a negative angle face inwards from the cutting knife cutting edge, and the angle of this negative angle face is in 1 °～5 ° scopes.

As shown in Figure 1, the dress cutter table top of common paper cutter and its motion datum level non-angular, and the depth of parallelism requires to be no more than 0.04mm.As shown in Figure 3, cutting between the section 8 of knife face 7 and CTP plate do not have the gap behind the blade, like this according to the actual situation that cuts, after cutting two or three cutter continuously, because it is big to contact attrition surface between knife face and the section behind the blade, metal can produce a large amount of heat breaking moment, causes that knife face can produce the metal buildup behind blade, to cut the section plucking and pull, and cause the CTP plate to cut.

In Fig. 2,, make cutting of blade and CTP plate just form a little gap that positive relief angle is α between the section 8 because the negative angle face that the dress cutter table top of blade has a α is installed.When cutting, reduce owing to cut the metal attrition surface, its heat that cuts the moment generation can be distributed very soon, so knife face 7 can not form the metal buildup behind blade, has avoided cutting section Yin Lamao and has pulled and can't cut.Test according to real the sanction, still do not have the metal buildup to produce after cutting 600 cuttves continuously on the blade, the CTP plate section that it cuts is neatly smooth, and no plucking is pulled.

Claims

1. a paper cutter that cuts printing plate is made up of cutter bed, blade, workbench and feeder, it is characterized in that the dress cutter table top (6) of described cutter bed (1) is established the negative angle face that an angle is α inwards from the cutting knife cutting edge.

2, a kind of blade that cuts printing plate according to claim 1 is characterized in that described dress cutter table top (6) is 1 °～5 ° from the angle [alpha] of cutting knife cutting edge negative angle face inwards.