FI56659C - KONTINUERLIGT ARBETANDE MASKIN FOER BEHANDLING AV BANMATERIAL - Google Patents

Description

m announcement eee.fl (11) UTLÄGGN INGSSKRIFT 56669 C Pr. exam granted 10 03 1030 (45) Patent meddelat '^ (51) Kv.lk. * / lnt.CI. * B 65 H 17/52 FINLAND —FINLAND ( 21) Pttenttlh.kemu * - Puenttnsökning 3399/73 (22) Hakemispilvt - An * 6knlng * dag 02.11.73 (23) AlkupSlvi — Glltlghettdtg 02.11.73 (41) Tullut Public - Bllvlt offentllg OU. 05.7¾

Patent, and Board of Registration Nihtiviksip ^ ,. date of glare. -

Patent * och registerstyrelsen 'Ansökan utlagd oeh utl. $ KrKten publlcerad 30.11.79 _ (32) (33) (31) Pyydetty etuoikeus— Begird priorltet 03.11.72

Italy-Italy (lT) 70U58 A / 72 (71) (72) Aido Bugnone, Via Bellini 2, Turin, Italy-Italy (lT) (7h) Berggren Oy Ab (5h) Continuous webbing machine - Kontinuerligt arbetande maskin för This invention relates to continuous web processing machines, such as printing machines, including flexographic, offset, color printing, rubbing and paraffin machines, in particular to a machine comprising a continuous web processing machine comprising at least one basic unit and at least one auxiliary work unit, wherein the auxiliary work unit or each auxiliary work unit is mounted on a frame adapted to be releasably attached to the support structure of the basic work unit.

In such a machine, the web material usually has to come into contact with a work roll which treats the other surface of the web.

In order to carry out the same treatment on another surface of the web, the web path must be changed, utilizing at this stage a number of auxiliary turning rollers, i.e. deflector rollers, supported by fixed supports, projecting laterally from supported on.

The installation of these auxiliary rollers requires long and complex operations and is laborious. Besides, the rollers are during installation ... \. ♦.

susceptible to damage, such as scratching, falling in love, etc., and difficult to transport and store.

B tl F 5/12 2 56659 These auxiliary web rollers must be removed in order to gain access to those working parts of the machine which cannot be accessed with the auxiliary rollers in place.

Known machines also have the disadvantage that the fixed supports of the auxiliary rollers increase the overall transverse dimension of the machine and make access to the functional parts more difficult.

It should also be noted that in order to perform wet and / or dry operations on web material that require different web surface treatments performed in successive steps but in a single operation on a single machine, different machine units may be individually positioned between two spaced supports. , or they can be mounted in a single frame either on top of each other or in parallel.

If occasional sub-operations have to be performed, the basic work units of the machine must be connected to the appropriate auxiliary work units, which work together with the basic work units. These arrangements have the following disadvantages in known machines: a) difficult access to the basic work units of the machine even when the auxiliary units are not in use; (b) the removal of the rollers is difficult due to the rather limited space available; (c) the replacement of rollers and the rinsing of work or treatment baths require long downtimes; (d) long downtimes are necessary for the conversion of work units for other operations, since it is necessary to replace the mechanical parts.

According to the invention, these drawbacks are avoided or minimized by a web-processing machine of the type mentioned in the introduction, characterized in that the frame of the auxiliary unit can be moved with all its components and quickly connected to the base unit support structure

The invention will now be described by way of non-limiting example in connection with the accompanying drawing, in which:

Figure 1 is a schematic side view of a typical prior art continuous web processing machine, 56659

Figure 2 is a schematic side view of a continuous web processing machine according to an embodiment of the present invention;

Fig. 3 is a schematic side view of the machine of Fig. 2 adapted to treat the main surface of the web, and Fig. 4 is a schematic side view of a machine according to a modification of the machine of Figs. 2 and 3.

Figure 1 shows schematically, in a vertical side view, a conventional web-based continuous web processing machine.

The machine comprises a support structure with vertical front supports 1 supporting the main work roll 2, which performs a certain operation on the web material A in cooperation with the press roll 3. At the top of the structure, each front support 1 supports two side supports 4, 5 which support rotating, cylindrical rollers 6, 7, 8, 18, 19 · When the machine is arranged to treat the main surface Af of the web, the web passes over rollers 6, 7 supported by a pair of supports 4 and exits the machine via a roll 8, indicated by a dotted line in Fig. 1, after passing between the rollers 2, 3.

If, on the other hand, the treatment is carried out on the opposite surface A "of the web A, rotating, cylindrical web turning rollers 9", 10, 11, 12 are introduced. These auxiliary rollers are supported by supports 13, 14, 15, 16 projecting laterally outwards from the machine vertical supports 1. In this case, the path of the web A is shown in full line in Figure 1. One of the side supports 16 is also used to support auxiliary work units 17, such as electronic read heads for registering colors in the case of printing machines.

Since the side supports 13 »14, 15 and 16 are fixed, the removal of the rotating web turning rollers from the supports has little effect on the transverse dimension of the machine.

According to the present invention, Fig. 2, different groups of rotating web turning rollers 9, 10, 11 and 12 are mounted on movable frames 20, 21, which also support the rollers 19 for heat treatment of the web. Frames 20, 21 may also support electronic read heads 17.

The frames 20, 21 are generally mounted on wheels which allow them to move out of the machine when the web turning auxiliary rollers 9, 10, 11 and 12 are not required. The frames 20, 21 can be mounted precisely in a very short time relative to the main support structure of the machine by means of centering and guide means (not shown), and fixed 56669 by tightening members 22, 23, e.g. by hand-rotating screws, each frame can be individually fastened to the vertical support structure 1.

Figure 3 shows the machine after the frames 20, 21 have been removed and removed, and shows how significantly the lateral dimension of the machine decreases.

The present invention eliminates the complex and laborious procedures required to remove and reinstall web turning rollers and auxiliary work units such as read heads 17.

Alternatively, the supports for the web turning auxiliary rollers can be made - as sliding carriages, or as frames hinged to the main frame of the machine and moving around the vertical hinge axes.

In the example according to Fig. 4, reference numeral 1 denotes - one of the vertical fronts of the machine support structure supporting the work roll 2, which performs a certain operation on the web A in cooperation with the press roll 3.

In addition, there are two rollers 7, 8 at the top of the support structure, over which the web A passes. The rollers 7, 8, together with others not shown, form part of the main work unit of the machine in a known manner.

In order to carry out auxiliary operations on the web, auxiliary work units must be used from time to time, which consist, for example, of additional rolls, treatment baths and other working members.

According to the present invention, all parts of the auxiliary work units are mounted on a movable frame 25 »which is independent of the main support structure of the machine and which can be moved to and from the machine.

In this example, the frame 25 is mounted on wheels 26 to facilitate its movement.

Special coupling members facilitate the precise alignment of the movable frame 25 with respect to the support structure, and the frame 25 can be fixed - to said frame structure with detachable screw members which can be rotated by means of handwheels 27.

By means of special quick-release switches (not shown), the ends of the axis supported by the movable frame 25 can be connected to the drive-transmission members of the machine (not shown).

At the bottom of the frame there is a suitable pallet on which the ink baths, pumps, drums and other equipment are mounted for carrying out the operations to be carried out by the auxiliary work unit concerned.

This arrangement makes it easy to remove auxiliary work units from the machine for changing work rolls and rinsing the baths. Its 5 66659 also avoids the need to stop the machine when changing the type of process carried out on the machine, as the auxiliary work unit can, when done, be removed and replaced with a new auxiliary work unit suitable for another process and pre-arranged for rollers and baths. , which reorganization has been performed outside the machine while the previous process is still ongoing.

The use of a movable frame in the machine according to the invention makes it possible to dismantle a part of the work unit outside the machine, whereby access and safety is as good as possible, in order to convert and adapt the unit for another type of work. In addition, it is possible to cope without a certain number of portable units which are pre-arranged for different work steps.

Auxiliary work units can be fitted to the machine as needed in a very short time. In addition, the auxiliary work units do not take up space in the machine when they are not in use, which makes the basic work unit easier to access and the machine itself less cumbersome.

In addition, the movable frame may be provided with an auxiliary work unit capable of performing work on either surface of the web, since the frame can be attached to brackets on either side of the machine.

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Claims (3)

56659 6 A continuous web material processing machine comprising at least one base unit and at least one auxiliary unit (9-12), the auxiliary unit or each auxiliary unit being mounted on a frame (20, 21; 25) adapted to be removably attached to the base unit (2). 5) to the support structure (1), characterized in that the frame (20, 21; 25) of the auxiliary work unit can be moved with all its components and quickly connected to the support structure (1) of the base unit by quick coupling members (22, 23; 27) so that the auxiliary unit components are in position in relation to. A continuous machine according to claim 1, characterized in that the movable frame (20, 21; 25), or each movable frame, consists of a carriage mounted on wheels (2 **; 26). ^ Continuous machine according to Claim 1, characterized in that the movable frame (20, 21; 25), or each movable frame, is hingedly connected to the support structure (1) of the basic work unit. A continuous machine according to one of the preceding claims, characterized in that at least one rotating cylinder, i.e. a roller, of the auxiliary work unit supported by the movable frame can be connected to the transmission elements of the machine by means of quick-release switches.