CN208558590U - A kind of high-axiality stable type gravure printing roller - Google Patents

Abstract

The utility model relates to a kind of high-axiality stable type gravure printing rollers, including roller, roll shaft, cooperation dististyle, fastening nut, the roller includes interconnecting piece, Printing Department, the two sides outer end of interconnecting piece is end face, the end face is circumferentially uniformly provided with mating groove, the dististyle is inwardly provided with coordinating block, and dististyle and end face cooperate, and the dististyle center is provided with fit keyway；Dististyle position of the roll shaft outside end face has bonding part, and bonding part and fit keyway cooperate, and bonding part has threaded portion outward；There is screw thread, outer end has limiting section, and the threaded portion of roll shaft two sides is threadedly engaged with two fastening nuts, and makes dististyle pressure side surface on the inside of the fastening nut.The utility model changes the distribution that roll shaft power is transmitted to the dynamic torque of roller, and perfect rotatable engagement structure, keeps concentricity more accurate reliable, precision and printing quality are further enhanced in printing process.

Description

A kind of high-axiality stable type gravure printing roller

Technical field

The utility model belongs to print roller technical field more particularly to a kind of high-axiality stable type gravure printing roller.

Background technique

The one kind of intaglio printing as printing technology, with its printing product layer of ink is thick and solid, bright-colored, saturation degree is high, printing plate The advantages that press resistance rate is high, print quality is stable, print speed printing speed is fast, occupies important ground in printing packaging and picture and text publishing area Position.Intaglio printing carries out rolling printing using gravure printing roller, and it is the core of gravure printing technique that gravure printing roller, which is one kind of print roller, One of center portion part.

In general, gravure printing roller is fabricated to roller cylinder and mandrel two parts, mandrel passes through roller cylinder, and between the two It removably connects, to adapt to the intaglio printing press production operation of different type of machines.However, there are rollers for existing gravure printing roller The fit system of part and mandrel relies on simple key connection, and more is flat key connection, this results in hardly possible during circular motion To avoid a small amount of changing of the relative positions of axial direction, influence printing quality.In brief, concentricity is not high enough.

Therefore, on the basis of original simple structure, the connection structure of mandrel and roller is improved, keeps its concentricity higher, It is more fine and smooth uniform in rotation printing process, it is an important project.

Utility model content

Purpose of utility model: in order to overcome the above problems, the purpose of the utility model is to provide a kind of high-axialities to stablize Type gravure printing roller.

Technical solution: a kind of high-axiality stable type gravure printing roller described in the utility model, including inside are provided with cavity Roller, be connected to roller roll shaft, be matched with the dististyle and fastening nut at roller both ends, outside the roller near both ends Region is interconnecting piece, and middle section is Printing Department, and the Printing Department surface is successively coated with nickel coating, copper plate, chrome layer, described The two sides outer end of interconnecting piece is end face, and the end face is circumferentially uniformly provided with several mating grooves, and the dististyle is inwardly provided with and cooperates Groove shape, size, distribution coordinating block all the same, by the one-to-one correspondence of coordinating block and mating groove, dististyle and end face cooperate, institute It states dististyle center and is provided with fit keyway；Dististyle position of the roll shaft outside end face has bonding part, bonding part and fit keyway Cooperation, bonding part have threaded portion outward；There is screw thread, outer end has limiting section, roll shaft two sides on the inside of the fastening nut Threaded portion is threadedly engaged with two fastening nuts, and makes dististyle pressure side surface.

Preferably, the internal diameter of the limiting section is slightly larger than roll shaft threaded portion with the outer diameter of outer portion.

Preferably, being provided with buffering spacer in fastening nut face position on the outside of the dististyle.

Preferably, the material of the buffering spacer is one of silica gel, asbestos, rubber, nylon, copper.

Preferably, the cross-sectional shape of the fit keyway, bonding part is square, one of regular hexagon.

Preferably, the quantity of the mating groove, coordinating block is 4~8.

Above-mentioned technical proposal can be seen that the utility model has the following beneficial effects: the utility model structure is simple, together Axis degree is high.On the basis of roller and roll shaft cooperation meet basic principle, the dististyle at roller both ends plays important mating reaction； The mating groove of end face and the coordinating block of dististyle cooperate nature；The fit keyway of dististyle and the auxiliary section of roll shaft are another assemble again It closes, two groups of cooperations make the self-calibrating capabilities enhancing for transmitting power, after fastening nut cooperates both ends threaded portion, very reliably.This reality With the novel distribution for changing roll shaft power and being transmitted to the dynamic torque of roller, and perfect rotatable engagement structure, make concentricity more Add accurate reliable, precision and printing quality are further enhanced in printing process.

Detailed description of the invention

Fig. 1 is the general structure schematic diagram of the utility model, and Fig. 2 is the end face of the utility model, dististyle mating part Overlooking structure diagram.

In figure: 1- roller, 10- cavity, 11- interconnecting piece, 12- Printing Department, 121- nickel coating, 122- copper plate, 123- plating Layers of chrome, the end face 13-, 130- mating groove, 2- roll shaft, 21- bonding part, the threaded portion 22-, 3- dististyle, 30- coordinating block, 31- fit key Slot, 4- fastening nut, 41- limiting section, 5- buffering spacer.

Specific embodiment

In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate.

As shown in Fig. 1~2, the roller 1 of cavity 10 is provided with including inside, the roll shaft 2 for being connected to roller 1, is matched with roller 1 The dististyle 3 and fastening nut 4 at both ends, the 1 outside both ends near zone of roller are interconnecting piece 11, and middle section is Printing Department 12,12 surface of Printing Department is successively coated with nickel coating 121, copper plate 122, chrome layer 123, outside the two sides of the interconnecting piece 11 End is end face 13, and the end face 13 is circumferential to be uniformly provided with mating groove 130, opens mating groove 130 close to periphery, the dististyle 3 is inwardly It is provided with the coordinating block 30 all the same with 130 shape of mating groove, size, distribution, it is a pair of by the one of coordinating block 30 and mating groove 130 Answer, dististyle 3 and end face 13 cooperate, the mating groove 130, coordinating block 30 quantity be 4~8,3 center of dististyle, which is provided with, matches Close keyway 31；

Dististyle 3 position of the roll shaft 2 outside end face 13 has bonding part 21, and bonding part 21 and fit keyway 31 cooperate, Bonding part 21 has threaded portion 22 outward；The fit keyway 31, bonding part 21 cross-sectional shape be square, regular hexagon One of；There is screw thread, outer end has limiting section 41, and the internal diameter of the limiting section 41 is slightly larger than on the inside of the fastening nut 4 With the outer diameter of outer portion, the threaded portion 22 of 2 two sides of roll shaft is threadedly engaged 2 threaded portion 22 of roll shaft with two fastening nuts 4, and makes to hold 3 pressure side surface of piece, 3 outside of dististyle are provided with buffering spacer 5 in 4 face position of fastening nut, and making to compress has buffering, described The material of buffering spacer 5 is one of silica gel, asbestos, rubber, nylon, copper.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvement can also be made, these improvement also should be regarded as The protection scope of the utility model.

Claims (6)

1. a kind of high-axiality stable type gravure printing roller, which is characterized in that be provided with the roller of cavity including inside, be connected to roller Roll shaft, be matched with the dististyle and fastening nut at roller both ends, both ends near zone is interconnecting piece outside the roller, intermediate Part is Printing Department, and the Printing Department surface is successively coated with nickel coating, copper plate, chrome layer, the two sides outer end of the interconnecting piece For end face, the end face is circumferentially uniformly provided with several mating grooves, and the dististyle is inwardly provided with and cooperation groove shape, size, distribution Coordinating block all the same, by the one-to-one correspondence of coordinating block and mating groove, dististyle and end face cooperate, and the dististyle center, which is provided with, matches Close keyway；Dististyle position of the roll shaft outside end face has bonding part, and bonding part and fit keyway cooperate, and bonding part has outward There is threaded portion；There is screw thread, outer end has limiting section, the threaded portion of roll shaft two sides and two fastening spiral shells on the inside of the fastening nut Box thread cooperation, and make dististyle pressure side surface.

2. a kind of high-axiality stable type gravure printing roller according to claim 1, which is characterized in that the limiting section it is interior Diameter is slightly larger than roll shaft threaded portion with the outer diameter of outer portion.

3. a kind of high-axiality stable type gravure printing roller according to claim 1, which is characterized in that the dististyle outside exists Fastening nut face position is provided with buffering spacer.

4. a kind of high-axiality stable type gravure printing roller according to claim 3, which is characterized in that the buffering spacer Material is one of silica gel, asbestos, rubber, nylon, copper.

5. a kind of high-axiality stable type gravure printing roller according to claim 1, which is characterized in that the fit keyway, The cross-sectional shape of bonding part is square, one of regular hexagon.

6. a kind of high-axiality stable type gravure printing roller according to claim 1, which is characterized in that the mating groove is matched The quantity for closing block is 4~8.