CN1666865A

CN1666865A - Printing plate roller

Info

Publication number: CN1666865A
Application number: CN 200410027487
Authority: CN
Inventors: 李智
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-08
Filing date: 2004-06-08
Publication date: 2005-09-14

Abstract

The invention relates to a printing roller and belongs to the printing equipment field. The technological scheme is: it includes the roller-shape printing face with the printing patterns processed on the circle surface of it and the gas-expansion shaft in the print face. The said gas-expansion shaft is the shaft core of the roller. The working principle is: the expansion of the gas-expansion shaft fills in the hollow tube of roller and makes the shaft and the print faces integrate to form the roller.

Description

A kind of printing plate cylinder

Technical field:

The present invention relates to the printing equipment technical field, refer in particular to a kind of replaceable printing plate cylinder that has.

Background technology:

Traditional printing plate cylinder comprises intaglio printing and letterpress, and it has the polychrome characteristics of printing continuously.This printing plate cylinder normally adopts seamless steel pipe through being processed into after the surface treatment, though have the good advantage of printing effect, to have a major issue be exactly that the expense of plate-making is too high for it.Because its whole printing plate cylinder is as a whole, so whenever changing a printed patterns kind, just whole printing plate cylinder need be upgraded, so just caused the production cost raising, particularly for the production of some small lots, many kinds, this printing plate cylinder not only makes cost improve greatly, and need process corresponding printing plate cylinder at different cultivars, so make the whole production cycle stretch-out.

On the other hand, often use gas expansion shaft as devices for taking-up in textile printing and dyeing industry at present.It generally is rotating being installed on the machinery equipment, by the compressed-air actuated expansion of its inside, makes this gas expansion shaft tensioner in a volume bucket, and it is fixing to roll up bucket by gas expansion shaft.Volume bucket commonly used has paper material, plastic material and metal material, and it all can utilize gas expansion shaft to reach the purpose that volume send.

Summary of the invention:

The objective of the invention is to gas expansion shaft is applied on the printing plate cylinder, a kind of replaceable printing plate cylinder that has is provided.

The present invention is achieved through the following technical solutions: it comprises a drum-shape space of a whole page, is processed with the forme pattern in the circumferential surface of the space of a whole page, and a gas expansion shaft is installed in the space of a whole page.

This gas expansion shaft comprises that one has the axis body of hollow pipeline and is wrapped in the outer gum cover of axis body, axis body offers air admission hole, the two ends of gum cover on axis body, offer the through hole that is communicated with its inner hollow pipeline by the securing member banding on the surface of axis body between two securing members.

Perhaps this gas expansion shaft comprises that one has the axis body of hollow pipeline, the air bag that a gripper shoe and is arranged in the axis body hollow pipeline, on axis body, offer the air admission hole that is communicated with air bag, evenly be provided with the through hole that is communicated with pipeline on the periphery of axis body, and support member is arranged in each through hole.

After adopting this structure, this printing plate cylinder is with the axle core of gas expansion shaft as the version roller, and its operation principle is: utilize the expansion of gas expansion shaft to make it tensioner in the hollow tube of the space of a whole page, the gas expansion shaft and the space of a whole page are combined as a whole, form the printing plate cylinder that can print.

Description of drawings:

Fig. 1 is the stereogram of the embodiment of the invention one;

Fig. 2 is the schematic cross-section of the embodiment of the invention one;

Fig. 3 is the stereogram of the embodiment of the invention two;

Fig. 4 is the schematic cross-section of the embodiment of the invention two.

The specific embodiment:

See accompanying drawing 1,2, this is a preferred embodiment of the present invention, and it comprises: a drum-shape space of a whole page 1, be processed with forme pattern 11 in the circumferential surface of the space of a whole page 1, and pattern 11 can be relief printing plate or intaglio plate.One gas expansion shaft 2 is installed in the space of a whole page 1.This gas expansion shaft 2 comprises that one has the axis body 21 of hollow pipeline 20 and is wrapped in axis body 21 gum cover 27 outward, axis body 21 offers air admission hole 26, the two ends of gum cover 27 on axis body 21, offer the through hole 22 that is communicated with its inner hollow pipeline 20 by securing member 271 bandings on the surface of axis body 21 between two securing members 271.The two ends of its central axis 21 are formed with and are used for axle 25 among whole axis body 21 transmissions, and air admission hole 26 can be opened on this central shaft 25.

During use, at first, before gas expansion shaft 2 inflations, the space of a whole page 1 is sheathed on outside gas expansion shaft 2 gum covers 27, inflate by the axis body 21 of 26 pairs of gas expansion shafts 2 of air admission hole then, gas enters between gum cover 27 and the axis body 21 by the hollow pipeline 20 and the through hole 22 of axis body 21, thereby with gum cover 27 risings, makes whole gas expansion shaft 2 tensioners in the hollow tube of the space of a whole page 1, gas expansion shaft 2 just is combined as a whole with the space of a whole page 1 like this, forms the printing plate cylinder that can print.Otherwise air inlet 26 is opened, gases are emitted, the expansive force that then acts on the space of a whole page 1 disappears, the operator can be easily with the space of a whole page 1 by taking out on the gas expansion shaft 2.As seen from the above, adopt the present invention after, (or many) printing equipment only needs to dispose the gas expansion shaft 2 that a cover has the various outer diameter size and gets final product.When needs are changed print product, only need to process again a new space of a whole page 1, with its cover fit over its gas expansion shaft 2 that is fit on get final product, so not only significantly reduce the expense of making printing plate cylinder, and its fabrication cycle is shortened greatly, improved production efficiency greatly.

See Fig. 3,4, this is an another embodiment of the present invention, and it comprises a drum-shape space of a whole page 1 and a gas expansion shaft 2A equally.The space of a whole page 1 is similarly the cylinder of a hollow, and its circumferential surface is processed with forme pattern 11, and gas expansion shaft 2 is assemblied in the hollow pipeline of the space of a whole page 1.Gas expansion shaft 2A comprises that one has the axis body 21 of hollow pipeline 20, the air bag 24 that a gripper shoe 23 and is arranged in axis body 21 hollow pipelines 20 in the present embodiment, and the present invention promotes support member 23 by the expansion or the contraction of air bag.On axis body 21, offer the air admission hole 26 that is communicated with pneumatic shuttle 24.On the periphery of axis body 21, evenly be provided with the through hole 22 that is communicated with pipeline 20, and support member 23 is arranged in each through hole 22.Support member 23 on the described gas expansion shaft 2 is made of with external support board 233 interior gripper shoe 231, connecting rod 232; Wherein interior gripper shoe 231 is positioned at axis body 21, and external support board 233 is positioned at outside the axis body 21, and has the radian with 1 adaptation of the drum-shape space of a whole page, helps like this keeping that the space of a whole page is inflatable is supported for desirable circle, and makes the space of a whole page 1 not be prone to deformation.Inside and outside gripper shoe 231,233 connects by connecting rod 232, and it is fixedly connected with inside and outside gripper shoe 231,233 that promptly connecting rod 232 wears through hole 22.

During present embodiment work: at first before air bag 24 inflations of gas expansion shaft 2A, the space of a whole page 1 is sheathed on the axis body 21 of gas expansion shaft 2A, then by 24 inflations of 26 pairs of air bags of air inlet.After air bag 24 expands, gripper shoe 231 made it to external support board 233 motions in air bag 24 will push, the outer surface that has a radian identical with the space of a whole page 1 by external support board 233 presses on the inwall of the space of a whole page 1, thereby make gripper shoe 23 tensioners in the hollow pipeline 20 of the space of a whole page 1, the gas expansion shaft 2 and the space of a whole page 1 are combined as a whole, form the printing plate cylinder that can print.

The embodiment of the above, only be the present invention's preferred embodiments, be not to limit the scope of the present invention, for example change air pressure into hydraulic pressure and be similarly one embodiment of the invention, so all do variation or modification according to the described shape of the present patent application claim, structure, feature and spiritual principle all should be included in the present patent application claim.

Claims

1, a kind of printing plate cylinder comprises: a drum-shape space of a whole page (1), be processed with forme pattern (11) in the circumferential surface of the space of a whole page (1), and it is characterized in that: a gas expansion shaft (2 or 2A) is installed in the space of a whole page (1).

2, a kind of printing plate cylinder according to claim 1, it is characterized in that: this gas expansion shaft (2) comprises that one has the axis body (21) of hollow pipeline (20) and is wrapped in the outer gum cover (27) of axis body (21), axis body (21) offers air admission hole (26), the two ends of gum cover (27) on axis body (21), offer the through hole (22) that is communicated with its inner hollow pipeline (20) by securing member (271) banding on the surface that is positioned at axis body (21) between two securing members (271).

3, a kind of printing plate cylinder according to claim 1, it is characterized in that: this gas expansion shaft (2A) comprises that one has the axis body (21) of hollow pipeline (20), the air bag (24) that a gripper shoe (23) and is arranged in axis body (21) hollow pipeline (20), on axis body (21), offer the air admission hole (26) that is communicated with air bag (24), evenly be provided with the through hole (22) that is communicated with pipeline (20) on the periphery of axis body (21), and support member (23) is arranged in each through hole (22).

4, a kind of printing plate cylinder according to claim 3 is characterized in that: the support member (23) on the described gas expansion shaft (2A) is made of with external support board (233) interior gripper shoe (231), connecting rod (232); Wherein interior gripper shoe (231) is positioned at axis body (21), external support board (233) is positioned at outside the axis body (21), and it has the radian with the drum-shape space of a whole page (1) adaptation, inside and outside gripper shoe (231,233) connects by connecting rod (232), and it is fixedly connected with inside and outside gripper shoe (231,233) that promptly connecting rod (232) wears through hole (22).