EP1762529B1 - Device for processing web materials - Google Patents

Description

The invention relates to a device for processing web-like material, in particular a folding machine upper part, with a machine frame and with at least one attached to the machine frame, the web-like material transporting train group, which is provided with mutually engageable, drivable rollers, which can be accommodated on a continuous shaft train and / or support rings are provided.

In the known arrangements of this type, the rollers of the pull groups are mounted with their two ends in each case a side wall of a machine frame. This leads to a relatively poor accessibility of the rollers, which increases the maintenance and repair costs. In this context, it can be assumed that the pull rings of the rollers have comparatively short service lives and must be replaced frequently, which is difficult in the known arrangements.

The publication EP-A-0 767 124 describes, for example, how tension rings are elastically mounted on adjacent rollers, so as to change in the manner of a transmission, a peripheral speed of the rollers by simple means.

On this basis, it is therefore an object of the present invention to improve a device of the type mentioned with simple and inexpensive means so that a high maintenance and maintenance friendliness is achieved.

This object is achieved in that the machine frame has only one side wall and that the rollers of the pulling group are accommodated on a support frame which is mounted on a flying side member of a side wall and the two interconnected by at least one cross member, the rollers receiving end plates one of which is designed as a fixable on the adjacent element of a side wall, stationary end plate and die.andere end plate is removable from the support frame, the rollers in the stationary end plate at least two in axial Direction spaced apart bearings and in the region of the removable front plate at least one other bearing are assigned.

These measures advantageously allow easy replacement of the tension and / or support rings. For this purpose, only the removable face plate needs to be removed. Due to the double storage of the rollers in the stationary face plate while the rollers remain in an advantageous manner, even if the removable face plate is removed. Due to the double storage of the rollers in the stationary end plate is also achieved that the adjustable roller when turning on or off to be parallel to itself, even if the roller ends associated adjusting devices are not synchronized. On a complex synchronization can therefore be dispensed with.

Advantageous embodiments and expedient developments of the higher-level measures are specified in the subclaims.

Thus, one side wall in the region of its element carrying a traction group can be provided with a window which is assigned to the traction group and can be covered by its stationary end plate from the inside, and which is open towards the outside. This ensures that the outside of the stationary end plate is accessible from the outside, which facilitates the attachment and maintenance of the rollers associated drive and actuators, etc. and also gives the opportunity to place these organs at least partially within said window.

The adjustable roller is expediently accommodated on pivoting levers, wherein in the region of the stationary end plate a double pivoting lever is advantageously provided with two legs each containing a bearing and flanking the end plate, which are connected to one another by means of a yoke, which engages through an associated through-passage of the front plate. For the double pivot lever only one adjusting device is required in an advantageous manner, by means of which the two each containing a bearing of the associated roller legs are uniformly movable.

In a further development of the higher-level measures, the adjusting device associated with the double pivoting lever can be actuated during the adjusting movement with a slight forward movement relative to the adjusting device provided in the region of the opposite end of the roller, and vice versa. As a result, the bearings are spared.

Further, advantageous embodiments and expedient developments of the higher-level measures are given in the remaining subclaims and from the following example description with reference to the drawing closer.

Figur 1

eine schematische Ansicht eines Falzapparats mit zugeordnetem Falzwerkoberteil,

Figur 2

einen Schnitt durch die Seitenwand des Falzwerkoberteils mit einer Draufsicht auf die hieran angebrachte Zuggruppe,

Figur 3

eine Seitenansicht der Zuggruppe mit abgenommener, seitenwandferner Stirnplatte und

Figur 4

eine Stirnansicht der Zuggruppe mit einer der verschwenkbaren Walze zugeordneten Stelleinrichtung.

In the drawing described below:

FIG. 1

a schematic view of a folder with associated folder top,

FIG. 2

a section through the side wall of the folder upper part with a plan view of the train group attached thereto,

FIG. 3

a side view of the train group with removed, side wall remote face plate and

FIG. 4

an end view of the train group with an adjusting device associated with the pivotable roller.

The basic structure and operation of folding devices are known per se and therefore need no further explanation in the present context.

The the FIG. 1 underlying, a printing press downstream folding device includes a folder 1, on which a folder upper part 2 is placed. The folder upper part 2 contains several, here three side by side arranged folding hopper 3 for generating a respective Längsfalzes, drawn over the printing substrate. To pull the printing material trays 4 are provided, each containing two adjacently to each other rollers 5. Each former 3 a train group 4 is arranged downstream. At each exit of the folder upper part 2, a further train group 4 is provided. In the example shown, the folder 1 contains only a cross-cutting and folding unit to which all longitudinally folded substrates are fed in the form of a package. Accordingly, only one output-side train group 4 is required. For deflecting the webs stationary and / or adjustable guide rollers 6 may be provided.

The folder top 2 has only one side wall 7, on which all elements received thereon fly, i. only one-sided firmly attached. The former 3 and the associated peripheral organs in the form of subordinate inlet rollers 8 together with associated pulling group 4 can each be accommodated on a laterally displaceable slide 9 integrated in the side wall 7, i. be attached to it flying.

The pull groups 4 each contain, as best of all FIG. 2 can be seen, the rollers 5 receiving, expedient frame-shaped support frame 10, which, as FIG. 2 can be seen, with an end face on the one side wall 7 of the folding mechanism upper part 2 and a slide 9 integrated in the side wall 7 can be attached, so that there is a flying, projecting from the side wall 7 arrangement. The support frame 10 has, as from FIG. 2 it can be seen, two opposite, transverse to the axes of the rollers 5 extending end plates 11,12, which are interconnected by at least one parallel roller traverse 13, in the example shown by two lateral trusses 13. The rollers 5 are received with their end portions directly or indirectly on the end plates 11,12.

The support frames 10 are fastened with a front plate, in the example shown with the left end plate 11 on the side wall 7 and a side wall side carriage 9. The face plate 11 is accordingly referred to as a stationary face plate, to which the trusses 13 can inextricably connect. In the example shown, the trusses 13 are welded to the stationary end plate 11. The respectively opposite end plate 12 is formed as a removable face plate, which can be detached and removed from the trusses 13. The FIG. 3 shows the face plate 12 in the disassembled position. The removable end plate 12 is accordingly releasably connected to the crossbars 13, as in FIG. 2 indicated by screws 14. To support the support frame 10 on the side wall 7 and a carriage 9 of the side wall 7 can in FIG. 2 indicated screws 15 may be provided. This allows a detachable attachment.

The rollers 5 each contain a shaft 16 and received thereon rings in the form of lateral pull rings 17 and arranged therebetween support rings 18. The waves 16 can pass undivided over the entire length. In such a case, the shafts 16 and their bearings from the removable face plate 12 are removable. It would also be conceivable, however, to divide the shafts 16 in the area adjacent to the inside of the removable end plate 12. Such an embodiment is in FIG. 3 indicated. In this case, an expansion of the shafts 5 and their bearings from the removable end plate 12 is not required. The shaft sections formed by the partition may be connectable to each other by a simple shaft coupling. In which the FIG. 3 Underlying example, in the region of the wave pitch, a cone arrangement with a conical pin 20 of the other shaft section which can be pressed into an end-side conical recess 19 of the one shaft section is provided. The contact forces are generated by the determination of the removable end plate 12 to the trusses 13. The cone arrangement results in an advantageous manner, an exact centering. For this purpose, the cone arrangement may also be provided in conjunction with a shaft coupling.

To ensure that the rollers 5 do not tilt in the event of removal of the removable end plate 12, but stop, each shaft 16 in the region of the opposite, stationary end plate 11 by two spaced apart in the axial direction bearings 21,22 or 21 a, 22 a, double stored.

In the area of the removable front plate 12, a simple mounting with a bearing 23 or 23 a is provided.

On the shafts 16, as already mentioned above, the tension rings 17 and support rings 18 are receivable. The diameter of the support rings 18 is slightly smaller than the diameter of the pull rings 17, which can be brought into mutual contact. For this is a roller, in FIG. 2 the upper roller 5 is pivotally arranged. Accordingly, the bearings 21,22,23 assigned to this roller are accommodated on associated pivoting levers. The double bearing forming bearings 21, 22 is assigned a double pivot lever 24, the best of FIG. 3 is apparent. The double pivot lever 24 includes two respectively a bearing 21 and 22 receiving, the stationary end plate 11 flanking, pivotally mounted thereto leg 25 which are connected in the region of their, the pivot bearing opposite ends by a yoke 26 with each other, the associated through-passage 27th the stationary end plate 11 passes through. The passage recess 27 is expediently designed as an arcuate slot, so that the yoke 26 has sufficient pivoting degree of freedom. The provided in the region of the removable end plate 12 bearing 23 is received on an associated, the end plate 12 adjacent the pivot lever 28 which is pivotally mounted on the outside of the end plate 12. The double pivot lever 24 and the simple pivot lever 28 are each by means of an associated, best of FIG. 4 apparent adjusting device, here in the form of an acted upon by a pressure medium actuator cylinder 29 pivotally supported on the respective adjacent end plate 11 and 12 respectively. The fixed connection of each of a bearing 21 and 22 receiving legs 25 of the double pivot lever 24 ensures that a control cylinder for pivoting both bearings 21 and 22 is sufficient.

The stationary roller associated bearing 21 a, 22 a, 23 a can be installed in the end plates 11 and 12 respectively. In which the FIG. 2 Underlying example, the bearings 21 a and 23 a built into the end plates 11 and 12 respectively. The bearing 22 a is attached in a to the outside of the stationary face plate 11 Bearing housing 30 is arranged. Of course, the bearings 21a and / or 23a corresponding bearing housing could be assigned.

The one train group 4 supporting element of the side wall 7 of the folding unit upper part 2 is how FIG. 2 further shows, provided in the region of each recorded train group 4 with one of these associated window 31, which is covered by the stationary end plate 11 from the inside and is open to the outside. Therefore, the outside of the stationary end plate 11 and the units attached thereto are accessible from outside via the window 31. Thus, in the illustrated example, the outer leg 25 of the Doppelschwenkhebels 24 thus aufauf recorded bearing 22 and the double pivot lever 24 associated actuating cylinder 29 and the bearing housing 30 with the bearing 22 within the window 31, which is not only good accessibility, but also a compact design results.

At least one of the rollers 5, in the illustrated example, both rollers 5 of each train group 4 are driven. For this purpose, in the example shown, a motor 32 mounted on the outside of the element 4 carrying the pulling group 4 is provided, which motor is coupled to the shaft 16 of a roller 5. This is drivingly connected by a countershaft, here in the form of a belt drive 33, with the shaft 16 of the opposite roller 5. The motor 32 may be received on a mounted on the side wall 7 console 34.

As has already been mentioned, the rollers 5 are set together with their tension rings 17 for the purpose of accomplishing a train to be exercised on a guided material web or a completed package. In order to avoid a direct contact of the pull rings 17 and thus to ensure protection of the sensitive pull rings 17, such a job is appropriate only when an associated Bahnannissenskontrolleinrichtung reports the presence of a train. The train groups 4 is accordingly associated with a train presence control device, which may advantageously also be used as a web tear indicator.

The actuating cylinders 29 provided for moving the pivotably arranged roller 5 are designed such that a starting and stopping movement can be generated. To generate the adjusting movement, the adjusting cylinders 29 are acted upon in the setting direction with a pressure medium, as in FIG. 4 is indicated by a connected to a pressure medium source not shown supply line 35. The return movement can be accomplished by a return spring and / or by pressurizing the actuating cylinder 29 in the storage direction. The pressurization is controllable by means of a valve disposed in the supply line 35 slide valve 36. In the example shown, the slide valve is designed as a 5/2 - way valve. Suitably finds compressed air as compressed air use.

The adjustment takes place expediently in two stages. In the first stage, those provided in the region of the front and rear ends of the pivotable roll 5, i. the adjusting levers 29 associated with the pivoting levers 24 and 28 are acted upon by a slowly increasing, low pressure. The resulting low, low Anstellkraft superfluous synchronization of the two cylinders. In addition, the mutual contact of the two rollers takes place slowly and without high Anstell- or contact pressure, which protects the surface of the tension rings 17, especially if there is no paper between the tension rings. The low contact force is chosen so that it can lead a web when pulling with little force. For this purpose, a proportional valve 37 is provided in the supply line 35 upstream of the slide 36, which allows a slow pressure build-up to each preselected pressure level.

In the second stage of the adjusting movement, the two actuating cylinders 29 are subjected to a substantially higher, variably preselected at the proportional valve 37 pressure, so that the performed between the rollers 5 material can be detected and pulled with high pressure, resulting in the achievement of a reliable material tension in the transport direction allows. This second stage of the adjusting movement is expediently triggered automatically by the above-mentioned web presence control device as soon as it detects the presence of a web. The two-stage design of the adjusting allows a Mutual employment of the rollers with high contact pressure and yet ensures protection and thus long life of the tension rings 17. In addition, this dispenses with the waiver of a synchronization of the two actuating cylinder 29 favors, resulting in a simple design.

The parking movement can be triggered automatically or manually. The automatic release takes place in the event of a web break by the web presence control device. The parking movement is expediently also in two stages. First of all, both actuating cylinders are relieved so that the pressure drops quickly to zero. Subsequently, a pressure is built up in the storage direction. The build-up of this pressure is again slow and to a relatively low level. This ensures that no synchronization of the two actuating cylinders 29 is necessary for the Abstellbewegung.

The adjusting movement is terminated when the two rollers 5 come into mutual contact. This is, as already mentioned, possible due to the two-stage configuration of the adjusting movement, without having to fear a rapid wear of the tension rings 17. On one, the adjusting movement limiting stop can therefore be dispensed with in an advantageous manner. In this way, it is therefore possible to reliably press and pull even very thin material. To protect the pull rings 17 also contribute to the delicate employment and immediate parking in the event of a web break. Although the two-stage design of the arrival and / or shutdown process is particularly expedient in connection with the above-described embodiment of the flying train groups, it can also be used independently and offer advantages.

To protect the bearings 21,22,23 of the pivotal roller 5, the arrival and Abstellbewegung may suitably be such that in each case the adjusting movement in the region of the double bearing, ie in the region of the stationary face plate 11 with little forward to the adjusting movement in the region of the opposite Roller end, ie in the area of the removable end plate 12 and that the Abstellbewegung in the area of easy storage, ie in the area the demountable face plate 12 with low forward movement relative to the Abstellbewegung in the region of the double bearing, ie in the region of the stationary face plate 11 takes place.

Claims (16)

1. A device for processing web-type material, in particular a folding-unit upper portion, having a machine frame and having at least one pulling group (4) which is fitted on the machine frame and transports the web-type material and is provided with drivable rollers (5) that can be thrown onto each other and are provided with pulling rings (17) and/or supporting rings (18) that can be received on a continuous shaft (16), characterised in that the machine frame has only one side wall (7) and in that the rollers (5) of the pulling group (4) are received on a carrying frame (10) that is fitted in a cantilevered fashion on an element of the one side wall (7) and has two end plates (11, 12) that are connected together by means of at least one crossmember (13) and receive the rollers (5) ,of which one is formed as a stationary end plate (11) that can be fixed on the associated element of the side wall (7) and the other end plate (12) can be disassembled from the carrying frame (10), wherein associated with the rollers (5) in the region of the stationary end plate (11) there are at least two bearings (21, 22; 21a, 22a) that are at a distance from each other in the axial direction, and in the region of the end plate (12) that can be disassembled there is at least one further bearing (23, 23a).
2. A device according to claim 1, characterised in that the one side wall (7), in the region of its element carrying a pulling group (4), is provided with an outwardly open window (31) that is associated with the pulling group (4) and which can be covered from within by the stationary end plate (11) pertaining to the said element.
3. A device according to at least one of the preceding claims, characterised in that at least one of the two bearings (21, 22; 21a, 22a) of the rollers (5) that are associated with the stationary end plate (11) is arranged in the region of the outside of the stationary end plate (11).
4. A device according to at least one of the preceding claims, characterised in that at least one roller (5) is mounted with its ends on pivot levers (24, 28) that can be pivotably fitted on the end plates (11, 12) and cooperate in each case with an actuating arrangement that is preferably formed as an actuating cylinder (29).
5. A device according to claim 4, characterised in that provided in the region of the stationary end plate (11) there is a double pivot lever (24), the legs (25) of which that flank the end plate (11) and in each case carry a bearing (21 and 22 respectively) are connected together by means of a yoke (26) which passes through an associated through-recess (27) of the stationary end plate (11).
6. A device according to one of the preceding claims 4 or 5, characterised in that the actuating arrangements are arranged in the region of the outsides of the end plates (11 and 12 respectively) that are remote from each other.
7. A device according to one of the preceding claims, characterised in that one roller (5) is formed as a stationary roller, wherein at least one bearing (22a) of the stationary roller (5) is arranged in a bearing housing (30) that is set against the respectively adjacent end plate (11).
8. A device according to at least one of the preceding claims, characterised in that both rollers (5) can be driven, wherein a motor (32) that is fitted on the outside of an element of the side wall (7) associated with the pulling group (4) and is coupled to a roller (5) and an intermediate gear (33) that connects the two rollers (5) are provided.
9. A device according to at least one of the preceding claims, characterised in that the shafts (16) of the rollers (5) are subdivided in a region that is adjacent to the inside of the end plate (12) that can be disassembled, wherein the parts can be fixed together in a detachable manner.
10. A device according to one of the preceding claims, characterised in that it is possible to carry out a two-stage process of throwing on the rollers (5) by means of the actuating arrangements that are preferably formed as actuating cylinders (29), wherein in the first stage a slowly rising, lower pressure is applied to the actuating arrangements and in the second stage a rapid increase to a higher, adjustable final pressure is provided.
11. A device according to claim 10, characterised in that it is also possible to carry out a two-stage process of throwing off the rollers (5) by means of the actuating arrangements that are preferably formed as actuating cylinders (29), wherein in a first stage the actuating arrangements can be relieved and in a second stage pressure can be applied to them in the throw-off direction.
12. A device according to claim 10 or 11, characterised in that an adjustable proportional valve (37) is arranged in a pressure-medium-supply line (35) that is associated with the actuating arrangements.
13. A device according to one of the preceding claims 10 to 12, characterised in that the rollers (5) can be thrown onto each other without limit stops until there is mutual contact.
14. A device according to one of the preceding claims, characterised in that associated with the pulling group (4) there is a web-presence-checking arrangement by means of which in the absence of a web the actuating arrangements can be triggered in the throw-off direction.
15. A device according to one of the preceding claims, characterised in that the activation of the actuating arrangement that is provided in the region of the stationary end plate (11) is effected with a small advance during the throw-on process of the rollers (5) and is effected with a small delay during the throw-off process with respect to the actuating arrangement that is provided in the region of the end plate (12) that can be disassembled.
16. A device according to one of the preceding claims, characterised in that a 5/2-way valve (36) is arranged in a pressure-medium-supply line (35) that is associated with the actuating arrangements.

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