CN103068577A

CN103068577A - Printing assembly, particularly for flexographic prints with removable printing roller

Info

Publication number: CN103068577A
Application number: CN2011800378787A
Authority: CN
Inventors: 费德里科·达努奇欧; 绍罗·萨尔瓦多里
Original assignee: NUOVA GIDUE Srl
Current assignee: NUOVA GIDUE Srl
Priority date: 2010-08-03
Filing date: 2011-06-24
Publication date: 2013-04-24
Also published as: WO2012016758A1; IT1401510B1; EP2601051A1; ITMI20101471A1; BR112013002672A2

Abstract

A printing assembly (1), particularly for flexographic prints with removable printing roller, comprising at least two lateral uprights (3, 4) which face each other, each one defining a lateral cradle (11, 12) for supporting a motorized spindle (10) that supports a printing roller (7), each one of the lateral cradles (11, 12) comprising, at an upper portion thereof, at least one pair of supporting arms (13, 14) associable with the ends (10a, 10b) of the motorized spindle (10) protruding from the printing roller (7), for each one of the protruding ends (10a, 10b), a collar element (15, 16) being provided which is keyable onto the corresponding protruding end (10a, 10b) and associated rotatably with a flanged element (17, 18) that can be arranged to rest on a respective pair of supporting arms (13, 14) and engageable with locking means (26) of the printing assembly (1),for the retention of the flanged elements (17, 18) to rest on the pairs of supporting arms (13, 14), the collar elements (15, 16) being integral with the printing roller (7) for their removal together with the printing roller (7) from the motorized spindle (10).

Description

Printing assembly in particular for flexographic printing with removable print roller

Technical field

The present invention relates to a kind of improved printing assembly, in particular for the flexographic printing (flexographic print) with removable print roller.More specifically, the present invention relates to a kind of flexographic printing assembly that is easy to remove and be locked in simply from its one the print roller its one that has.

Background technology

Traditional printing assembly, for example flexographic presses is provided with a plurality of cylinders, and the first cylinder that wherein is called painting roller is designed to immerse in the black basin (not shown) to absorb some China inks; The second tin roller that the paper for the treatment of to print is thereon reeled; And be called as the 3rd cylinder of print roller, it carries the printed patterns of making at paper or other medium, and the first cylinder and second tin roller are near the 3rd cylinder, according to printed patterns feature entrained on the print roller China ink that the first cylinder is absorbed is transferred on the paper of second cylinder coiling.

At last, usually have the 4th cylinder that is disposed in the print roller downstream, its paper that will print is drawn to subsequently printing assembly from a printing assembly, or when print cycle finishes paper is pulled out.

The printing type of carrying out as required, print roller need to change frequently operation, with from a vary in diameter to another diameter.

Replacing print roller needs the time usually, because cylinder need to be discharged and then it removed from its one.

This operation is difficult for the preparation printing assembly, and in the time must changing a plurality of printing cylinder, this difficulty means that the replacing time is very long, for example in the situation of a plurality of printing assemblies of arranging continuously.

In addition, print roller must be adjusted in about the position of following cylinder at it, namely carries pattern characteristics on this cylinder and then this cylinder is oriented near print roller.

In order to overcome these difficulties, printing assembly has been designed to have the print roller that removes and discharge of having simplified.This printing assembly is comprised of the support frame that is used for printing cylinder, this support frame comprises an external shoulder of the adjustable support that is formed for the supporting printing roller, wherein be inserted with axle in the inboard of print roller, this axle at least one end in its end has flanged element of being combined rotatably with axle and may be locked in collar element on the axle, in order to flanged element axially is connected on the axle of back-up roller.

In addition, be provided for locking the device of print roller, this device is made of the outstanding dead bolt of a side direction shoulder from two side direction shoulders on the direction of the axis that is parallel to print roller basically, in order to stop flanged element rotation.

When replacing print roller, two dead bolt regractings, thus discharge two flanged elements, in order to the axle of supporting printing roller is vertically removed from printing assembly.

Subsequently, by removing each collar element and removing each flanged element from axle subsequently, axle can be taken out and is inserted into a new print roller of the new print cycle that is used for from print roller to be replaced.

Other printing assembly that employing has a print roller that removes and discharge of having simplified has been designed and also has been that support frame by the printing cylinder that is used for comprising an external shoulder consists of, wherein said one external shoulder is formed for the adjustable support of supporting printing roller, and wherein the inside of print roller is inserted with axle.

More specifically, the axle collar is rotatably installed on the axle, and rests on the adjustable support of at least one end in the end of axle.In addition, the element of C type shape is placed on the axle at axle collar place, so that axle is locked in place.

By this way, when replacing print roller, take out the element of C-type shape from adjustable support, and by the axle of supporting printing roller is vertically lifted, can replace print roller.

This traditional printing assembly is no lack of shortcoming, wherein configure the fact that the needed operation of printing assembly comprises that the whole axle that makes the supporting printing roller moves, owing to axle is sizable and therefore is quite heavy, this is so that the operation of change form is replacing time difficulty and need to be very long.

The disclosure of an invention content

Purport of the present invention provides a kind of improved printing assembly, and in particular for having the flexographic printing of removable print roller, wherein print roller is easy to remove and is easy to similarly be locked in its operating position.

In this purport, the purpose of this invention is to provide a kind of improved printing assembly, wherein print roller can discharge and therefore can remove by single simple operations, and does not need to dismantle the standing part of printing assembly.

Another object of the present invention provides a kind of improved printing assembly, and wherein print roller can be conditioned in the position of existing other cylinder in about printing assembly at it, and especially flatly and vertically all regulates.

Another object of the present invention provides a kind of improved printing assembly, and wherein print roller is easy to remove, and is highly reliable, and is relatively easy to implement and cheaply.

To become hereinafter more significantly, this purport realizes by following printing assembly with these and other purpose, namely this printing assembly is in particular for having the flexographic printing of removable print roller, comprise at least two side direction upright bodies that face with each other, each side direction upright body is defined for the side direction support that supports vehicularized axle, vehicularized axle supporting printing roller, in the described side direction support each comprises at an upper portion thereof by described print roller and combinative at least one pair of support arm of the protruding terminus of described vehicularized axle, be provided with collar element in the described protruding terminus each, this collar element may be locked on the described protruding terminus and with flanged element and rotatably is combined, this flanged element can be arranged to leave standstill (rest) in described paired support arm corresponding a pair of on and can engage so that described flanged element keeps resting on the described paired support arm with the locking device of described printing assembly, it is characterized in that, described collar element and described print roller are integral, so that described collar element removes from described vehicularized axle with described print roller.

The accompanying drawing summary

By the mode with limiting examples according to the present invention go out illustrated in the accompanying drawings in particular for the preferred of the improved printing assembly of flexographic printing with removable print roller but the description of nonexcludability, other feature of the present invention and benefit will become obviously, in the accompanying drawing:

Fig. 1 and Fig. 3 are two perspective views according to the embodiment of the improved printing assembly in particular for flexographic printing with removable print roller of the present invention;

Fig. 2 is the magnification ratio view of details of the view of improved printing assembly shown in Figure 1;

Fig. 4 is the cross-sectional side elevational view of Fig. 1 and improved printing assembly shown in Figure 3;

Fig. 5 is the magnification ratio view of details of the view of improved printing assembly shown in Figure 4.

The mode that carries out an invention

With reference to the accompanying drawings, usually the improved printing assembly that indicates with reference number 1 is in particular for having the flexographic printing of removable print roller, comprise and at least two side direction upright bodies 3 and 4 all-in-one-piece footings 2, wherein the side direction upright body faces with each other and supports a plurality of cylinders with the axis that is parallel to each other.

More specifically, provide the first cylinder 5, the first cylinders 5 that are called as painting roller to be configured to immerse in the black basin (not shown) to absorb some China inks; Second tin roller 6, the paper for the treatment of to print thereon is around second tin roller 6 coilings; And be called as the 3rd cylinder 7 of print roller, the 3rd cylinder 7 carries the printed patterns of making at paper or other medium, and the first cylinder 5 and second tin roller 6 both near the 3rd cylinder 7, according to printed patterns feature entrained on the print roller 7 China ink that the first cylinder 5 is absorbed is transferred on the paper of reeling around second tin roller 6.

Second tin roller 6 and the 3rd cylinder 7 are provided with

drive unit

8 and 9,

drive unit

8 and 9 is suitable for making respectively second tin roller 6 and the 3rd cylinder 7 around its

rotation

6a and 7a rotation, so that control is around the tension of the paper of second tin roller 6 coilings during printing process.

Differently, because the first cylinder 5 only needs to implement to transfer to from the China ink of collecting basin the function of the 3rd cylinder 7, therefore the first cylinder 5 is by from caused with the friction of the motion of the 3rd cylinder 7 of its tangent around its rotation 5a idle running and its rotation.

Because when the type change of print format, the first cylinder 5 and second tin roller 6 do not need to change, though therefore the first cylinder 5 and second tin roller 6 supported to rotatably by side direction upright body 3 and side direction upright body 4 so that when the type change of print format the rotation 5a of the first cylinder 5 and

second tin roller

6 and 6a still be parallel to each other and be positioned in that set in advance and unique position.

Differently, when the type change of print format, print roller 7 need to constantly be changed, with according to the type of print format to be used and from a vary in diameter to another diameter.

Because this necessity, print roller 7 is installed in removedly by on two side direction supports 11 and the 12 vehicularized axles 10 that support, and two side direction supports 11 and 12 are limited by two side direction upright bodies 3 and 4 respectively.

More specifically, each in the side direction support 3 and 4 comprises and terminal 10a and combinative at least one pair of

support arm

13 and 14 of 10b from the outstanding vehicularized axle 10 of print roller 7 at an upper portion thereof.

Provide

collar element

15 or 16 among protruding terminus 10a and the 10b each, first protruding terminus among protruding terminus 10a and the 10b functionally is connected on the drive unit 9,

collar element

15 or 16 may be locked in

corresponding protruding terminus

10a or 10b upward and with corresponding

flanged element

17 or 18 rotatably is combined, and flanged

element

17 or 18 can be arranged to rest on corresponding pair of

support arms

13 or 14.

According to the present invention,

collar element

15 and 16 and print roller 7 be integral so that

collar element

15 and 16 removes from vehicularized axle 10 with print roller 7.

More specifically, each

collar element

15 and 16 limits groove 19 in its inner radial surface, and groove 19 is suitable for and is engaged by the outside tongue of corresponding

flanged element

17 or 18 footpaths that limit (outer tongue) 20.

By this way, flanged

element

17 or 18 freely rotates with respect to

corresponding collar element

15 or 16, keeps axially being connected to simultaneously

collar element

15 or 16 in translational motion.

More specifically, each

flanged element

17 or 18 comprises following part, and namely this part is about

corresponding collar element

15 or 16 and radially enlarge and be designed to rest on by leaving standstill on the surface accordingly that corresponding pair of

support arms

13 or 14 limits.

Advantageously, every a pair of supporting

walls

13 or 14 comprises the first arm 22 and the second arm 23 that is pivoted respectively (pivot) corresponding side direction upright body 3 or 4.

More specifically, the first arm 22 and the second arm 23 are interconnected to corresponding side direction upright body 3 or 4 at it about two the relative ends of point that pivot, and it limits corresponding

flanged element

17 or 18 and leaves standstill thereon the surface of leaving standstill.

The first arm 22 and the second arm 23 all are provided with adjusting device 24, for each

arm

22 and 23, adjusting device 24 comprises at least one adjustment screw 25, and adjustment screw 25 is suitable for making

corresponding arm

22 or 23 to be directed to corresponding side direction upright body 3 or 4 around its

pivot axis

22a or 23a.

By this way, two

arms

22 and 23 are around its

pivot axis

22a and 23a rotation, in order to can make by means of

flanged element

17 and 18 and the print roller 7 that rests on

arm

22 and 23 is mobile horizontally and vertically.

Advantageously, flanged

element

17 and 18 can engage the locking device 26 of printing assembly 1, and locking device 26 is used for making flanged

element

17 and 18 to keep resting on paired

support arm

13 and 14.

For each flanged

element

17 and 18, locking device 26 comprises the slider 27 that can be engaged with at least one radial seat section 28, wherein radial seat section 28 is limited on the opposite side about enlarged radially basically by corresponding

flanged element

17 or 18, and wherein radially enlarged is designed to rest on corresponding pair of

support arms

13 and 14.

More specifically, the bonding station of each slider 27 from radial seat section 28 is movable to the releasing bonding station that breaks away from radial seat section 28, corresponding

flanged element

17 or 18 is connected to and rests on pair of

support arms

13 or 14 in bonding station, vehicularized axle 10 is removable from printing assembly 1 in removing bonding station, and vice versa.

By above description, the operation of improved printing assembly 1 in particular for the operation of the printing assembly of flexographic printing with removable print roller, is clear and understands.

Particularly, when print format changes, print roller 7 together with

collar element

15 and 16 and flanged

element

17 and 18 at first be raised from paired

support arm

13 or 14, then removing from axis of rotation 10 about drive unit 9 relative ends at axis of rotation 10, and then be mounted

new collar element

15 and 16 and other print roller 7 that new flanged

element

17 and 18 are installed replace, these remaining article have the size corresponding with the diameter of new print roller 7, so that new print roller 7 can be adjacent to other two cylinders 5 and 6.

In fact, have been found that, according to the improved printing assembly in particular for flexographic printing with removable print roller of the present invention, purport and the purpose of expection have been realized fully, because it is so that become possibility by only removing print roller and therefore make vehicularized axle stay the change of carrying out simply print format the printing assembly from vehicularized axle.

Other benefit according to improved printing assembly of the present invention is: owing to there being the device that is used for regulating and locking print roller, therefore it realizes approaching the simplification of print roller, thereby can print roller be removed and it is reorientated with very fast operation, and for its about the adjustment of the relative position of all the other cylinders of the size that is independent of print roller without any need for change.

Therefore contemplated improved printing assembly, the printing assembly in particular for flexographic printing with removable print roller can allow many improvement and variation, and all improvement and variation are all within the scope of appended claim.

In addition, all details can be substituted by technical other element that is equal to.

In fact, the material that adopts supposes that itself and concrete purposes are complementary, and size and contingent shape can be as required with any size and dimension of state of art.

By reference, the application is required the disclosure in disclosures in Italian patent application MI2010A001471 number of priority incorporate this paper into.

The technical characterictic of mentioning in any claim is followed in the situation of reference marker, comprise that these reference markers are the sole purposes for the intelligibility that increases claim, and therefore such reference marker to not having any restrictive effect by such reference marker with the explanation of determined each element of mode of example.

Claims

1. a printing assembly (1), in particular for having the flexographic printing of removable print roller, comprise at least two side direction upright bodies (3 that face with each other, 4), each side direction upright body is defined for the side direction support (11 that supports vehicularized axle (10), 12), described vehicularized axle (10) supporting printing roller (7), described side direction support (11,12) each in comprises the end (10a with the described vehicularized axle (10) of giving prominence to from described print roller (7) at an upper portion thereof, 10b) combinative at least one pair of support arm (13,14), for described protruding terminus (10a, 10b) each, be provided with collar element (15,16), described collar element (15,16) may be locked in described protruding terminus (10a, 10b) upper and with flanged element (17,18) rotatably combination, described flanged element (17,18) can be arranged to rest on described paired support arm (13,14) can engage so that described flanged element (17 on accordingly a pair of in and with the locking device (26) of described printing assembly (1), 18) keep resting on described paired support arm (13,14) on, it is characterized in that, described collar element (15,16) be integral with described print roller (7), so that described collar element (15,16) remove from described vehicularized axle (10) with described print roller (7).

2. printing assembly according to claim 1 (1), it is characterized in that, in described flanged element (17,18) each comprises at least one radial seat section (28), described radial seat section (28) is limited on the opposite side with respect to the following part of described flanged element (17,18) basically, and this part of described flanged element (17,18) is designed to rest on corresponding a pair of in the described paired support arm (13,14); And for described flanged element (17,18) each in, described locking device (26) comprises at least one slider (27), the bonding station of described slider (27) from described radial seat section (28) is movable to the releasing bonding station that breaks away from described radial seat section (28), at flanged element (17 described in the described bonding station, 18) be connected to rest on described pair of support arms (13,14) on, in described releasing bonding station, described vehicularized axle (10) is removable from described printing assembly (1), and vice versa.

3. according to the one or more described printing assembly (1) in the aforementioned claim, it is characterized in that, described paired support arm (13,14) the every a pair of support arm in comprises the first arm (22) and the second arm (23), described the first arm (22) and described the second arm (23) pivot respectively described side direction upright body (3,4) in corresponding one, described the first arm (22) is interconnected to described side direction upright body (3 at it about two the relative ends of point that pivot with described the second arm (23), 4), and therefore be defined for described flanged element (17,18) in one leave standstill the surface.

4. according to the one or more described printing assembly (1) in the aforementioned claim, it is characterized in that, described the first arm (22) and described the second arm (23) are provided with adjusting device (24), and described adjusting device (24) is used for regulating the orientation that described the first arm (22) and described the second arm (23) center on its pivot axis (22a, 23a) with respect to corresponding one of described side direction upright body (3,4).

5. according to the one or more described printing assembly (1) in the aforementioned claim, it is characterized in that, for each arm in the described arm (22,23), described adjusting device (24) comprises at least one adjustment screw (25).