DE102007015378A1 - Transfer device for film change - Google Patents

Abstract

The present invention relates to an exchange device for exchanging film wraps (14, 15) in a device for film transfer to a sheet (5). The invention achieves safe and easy replacement by means of a releasable support member (100) for supporting the shaft (102) of a roll (14, 15) inserted in guide elements (200) through the latter into a secure transfer region (300) into the device is guided in and there by the shaft (102) is released.

Description

The The present invention relates to a device for transferring a Transfer layer of at least one transfer film web on a Substrate, wherein the transfer film web as at least one film roll is provided on a shaft and the shaft by means of a replacement device is stored interchangeable according to the preamble of claim 1.

Of Furthermore, the invention relates to a method for transfer a shaft with at least one foil wrap in a device for transfer of a transfer layer from at least one transfer film web according to the preamble of claim 8.

Favor the invention relates to a device which is suitable for the so-called cold foil stamping is suitable.

At the Cold foil stamping becomes a transfer layer of a substrate transferred to a substrate.

When Carrier material is a carrier film used, which z. B. by means of an adhesive layer with a transfer layer connected is.

The Transfer layer is transferred to a previously treated substrate. On the substrate is in advance in a commissioned work Glue applied. For example, this commissioned work may to act a conventional printing unit, in which means a plate cylinder and a corresponding pressure plate adhesive area is applied to the substrate.

The Transfer film comprising the transfer layer is thereby as a transfer film web provided by a first foil wrap, i. H. from led a supply roll in a transfer gap and again from a second film wrap, d. H. a composite role.

To transfer the transfer layer on the substrate are the transfer film web and the printing material passed together through the transfer nip. In the transfer nip, the transfer layer is under pressure on the transferred with adhesive applied areas of the substrate.

Around simultaneously on different areas of the substrate next to each other can transfer different transfer layers each partial film webs as a film roll both on the supply and also be provided on the collection site. The foil wrap can either on its own wave or on a wave be provided jointly.

A corresponding device for cold foil stamping is in the EP 0 578 706 B1 presented.

On A film roll is only a limited amount of film webs provided. After the film web consumes on a film wrap is, this foil wrap must be replaced on the supply side become. On the collection site is rolled up at some point so much film web have been that even here no more space for more film webs is available. It is then necessary to replace the foil wrap.

An exchange device for such film wrap is in the DE 10 2005 043 940 A1 presented. Here hoists are proposed in conjunction with a storage section, which should replace the individual film rolls, ie the film wraps.

Problematic Here is that with a manual control of the exchange process always got an absolute overview must remain as the film wrap inserted into the machine become. Should z. B. the transfer above the head of the The transferring taxes are done, so is not always here guarantees that in these overhead work a safe handover the film wrap is done in the machine. For an automated Winding exchange, d. H. an automated transfer of a film wrapping is also a very complex and error-prone one System structure necessary.

The It is therefore an object of the present invention to provide the above At least reduce the problems mentioned above. It should be z. Legs safe and easy transfer of the film wrapping be guaranteed.

The The object of this invention is therefore by a generic Device solved according to claim 1.

at this device for transferring a transfer layer of at least A transfer film web onto a printing material is an exchange device provided, the at least one releasable support member for carrying the shaft comprises and at least one guide element for safely guiding the carrying member into an area of the device into it.

By the guide elements, the support member is guided so sure that a secure transfer of the film wrap is guaranteed. This is achieved in particular by the fact that not the film roll itself are handed over and not the shaft with the film rolls, but it is first a support member which carries the shaft inserted into guide elements. Should this introduction to the Füh The elements may not be completely completed, so it can not come to an incorrect slipping out of the shaft or the individual film winding, since the shaft is still held by the support member. Thus, a safe transfer of the shaft is ensured by the support member in the device inside.

In a continuation of the invention is advantageous provided that the support member laterally at least two guide rollers to engage in guide elements and that the Carrying member by lowering in the region of a transfer position the wave is guided so that the wave in this safe transfer position and thus it is also through possible operating errors are not a serious one here Accident can come. The wave was carried by the wearer and the Guides in the transfer position of the device ushered. In this position, the wave is already like that stored that no longer lost control of them can be.

In An advantageous development, it is provided that the support member further comprising a hook member which hooks on the shaft and by lowering the carrying member in the transfer position the wave releases.

is So the wave will be in the area of the transfer position the support member further lowered and the hook member may differ from release the carrying device. This lowering can also be achieved by means of the invention the guide elements are made. In this way one becomes Controlled introduction of the shaft and thus the foil wrap in allows the device inside. In particular, even becomes in addition, automatically releasing the shaft, allowing the shaft to be in a safe position in an operating position can be brought.

In A further embodiment provides that the Guide rollers have a lateral collar for centering the Having guide rollers in the guide elements. This provides the necessary accuracy with which the guide rollers, d. H. the carrying member, threaded into the guide elements so having a simple handover will decrease the carrying member is in the guide elements.

A Another embodiment of the invention advantageously provides ago, that the guide elements as guide grooves or guide slots in a region substantially above an operating position of the shaft in at least one housing part the device or at least one housing part attachable are provided. These guide grooves or guide slots can be easily used as guide elements serve and if necessary, they are also subsequently advantageous attachable to a housing part.

Around the transfer of the shaft and thus the film winding to the transfer position and thus also in the field of operating position as simple as possible To design, it is envisaged that the guide elements are formed so that they are in a first guide section the support member substantially in an area above a transfer position lead the shaft, which is achieved by the leadership at least with the help of the visual power of the wave and the Carrying organ can be done. Furthermore, a subsequent second guide portion provided substantially the same is executed that this guide section Lower the support so that the shaft is in the transfer position is released from the support member. This is then the Wave too provided that they are simple and safe can get into the operating position.

In A further embodiment provides that the Carrying a substantially downwardly projecting securing bracket having. This safety bar is so close to the environment Device adapted to a direct contact of a film roll on the shaft with other equipment parts in its environment can be avoided.

The The object of the invention is further characterized by a method for transfer a shaft with at least one foil wrap in a device for Transfer of a transfer layer of at least one transfer film web solved according to claim 8. It is envisaged that the Carrying member is releasably connected to the shaft. The carrying organ is as described above then in guide elements introduced and by means of these guide elements into a secure transfer area within the transfer device ushered. In a subsequent step can then the wearer from this transfer area so be lowered, that the carrying member is released from the shaft becomes. The shaft with the foil wrap can then be safe from this Area into the operating area or This transfer area can simultaneously serve as the operating area act. In any case, from the introduction of the wearer in the guide elements secure guidance of Wave predetermined. Furthermore, no complex devices are out of the question the guide elements and the carrying member necessary.

In an advantageous continuation of the method, it is provided that the weight of the carrying member, shaft and foil wrap is used to guide the carrying member in the guide elements substantially. This can be a be especially easy guidance can be achieved by a user.

The Of course, device can also be used for guidance serve the carrier when it is raised and from below engages the shaft, picks up this shaft and along the guide the shaft from the transfer position back out of the device out leads. Again, by tilting the shaft no danger situation arises anymore.

A preferred embodiment of the invention, to which these but should not be limited and made up of more according to the invention, is shown in the drawings.

It demonstrate:

1 a film transfer device in a printing machine,

2 a side view of a support member for supporting a film roll

3 a frontal representation of the wearer,

4 a carrier used in a film transfer device,

5 the support member in a transfer region of the film transfer device,

6 the support member after the transfer of the film roll.

1 shows a section of a printing machine with a film transfer device 1 , Shown is a first printing unit of the printing press, here as commissioned work 2 serves. In this commissioned work 2 will glue over an inking unit 3 on a printing plate cylinder 4 applied with a printing plate, not shown. The printing plate is imaged in such a way that it is in the areas of a picture-wise desired coating of a sheet 5 correspond to a transfer layer, absorbs adhesive. About the printing plate cylinder 4 the glue will continue on a blanket cylinder 6 transfer. The blanket cylinder 6 is to an impression cylinder 7 employed and together with this one order gap 8th , The blanket cylinder 6 forms together with the printing plate cylinder 4 , the inking unit 3 and possibly functionally connected to the adhesive, not shown here elements such. B. optionally a dampening unit, an applicator 9 , in the manner shown here to the impression cylinder 7 is employed.

The substrate is a sheet 5 used along a transport direction 10 is transported by the printing machine by means not shown transport elements. He is doing through the order column 8th passed where it is applied imagewise with adhesive. For the transport of the bow 5 For example, the impression cylinder may have grippers that grip the sheet at its leading edge and through the application nip 8th round lead. The order gap 8th is through the impression cylinder 7 and the blanket cylinder 6 is formed, and if no film transfer is performed in the printing press, a conventional printing nip, in the color of the printing plate on the blanket cylinder 6 on a bow 5 can be transferred.

After the adhesive application in the commissioned work 2 becomes the bow 5 via sheet transfer cylinder 11 to the Transferwerk 12 transported. This transfer work 12 has a foil module 13 with a transfer ribbon supply roll 14 and a transfer ribbon collecting roll 15 as a foil wrap on. The transfer ribbon collecting roll 15 as can also be separated from the transfer ribbon supply roll 14 be provided.

On the transfer ribbon supply roll 14 becomes a transfer film web 16 on a wave 102 rolled up provided. The transfer film web 16 is via pulleys 17 and 18 to a transfer gap 19 guided. The transfer gap 19 is through a transfer cylinder 20 and an impression cylinder 21 formed, which are hired together. At the transferwerk 12 it may be a printing unit of the printing press, which is set up so that a transfer of a transfer layer from the transfer sheet to the sheet 5 can be carried out. The transfer cylinder 20 is then a blanket cylinder.

The arc 5 will be together with the transfer foil web 16 at the same speed through the transfer nip 19 passed. In the fields of the bow 5 on which adhesive has been applied, the transfer layer of the transfer film remains adhered and is separated from the carrier film of the transfer film web 16 decreased. To support the adhesive effect of the adhesive, it may be provided that the transfer layer is arranged on the sheet by a calendering nip, not shown here, which is arranged downstream of the transfer nip 5 is pressed.

In front of the commissioned work 2 and behind the transferwerk 12 can still further processing plants, such. B. printing units of the printing press can be provided. This allows the bow 5 Both before the film transfer and after still be printed. However, in the two printing units, as commissioned work 2 and as a transfer work 12 used, no further processing of the bow 5 respectively.

According to an alternative embodiment, which is not shown here, it can be provided that all devices which are involved in the film transfer in a transfer work 12 are provided, ie an order device 9 , a transfer device 22 that at least consists of a transfer cylinder 20 and optionally from pulleys 17 . 18 may be formed and a calendering device. In this case, another work of the printing press can then be used as a further processing plant. However, then move back order facility 9 and transfer device 22 in a joint factory, where they work on the same impression cylinder 21 are employed. The distance between adhesive application and film transfer is considerably reduced and can lead to problems with the adhesion of the adhesive.

The foil wrap 14 . 15 be by means of a carrying organ 100 as it is in the 2 is shown in the film module 13 put in and taken out again.

As in 2 illustrated, comprises the carrying member 100 a hook 101 with each side of a shaft 102 a foil wrap 14 . 15 in the case illustrated here, on the transfer ribbon supply roll 14 , can hook. For safe guiding of the carrying organ 100 in guide slots 200 which in the 4 are shown, the carrying member comprises 100 in the upper area guide rollers 105 , These leadership roles 105 can then into the guide slots 200 be introduced.

To attach the transfer ribbon supply roll 14 when loading the film module 13 or to put the film collecting roll 15 when removing from the foil module 13 To avoid, includes the carrying organ 100 continue a safety clip 103 , This points from the hook area of the carrying member 100 continue essentially vertically downwards and is so pronounced in length that he always projects beyond possible film winding. Thus, the carrying member bumps 100 if it is moved in one direction down, always first with the circlip 103 on before it comes to a contact with a foil wrap 14 . 15 can come. Will the safety bar 103 pushed from below, so together with him the hook organ 101 moved upwards. In contrast, it would wrap through contact with the foil 14 . 15 to a movement of the film winding 14 . 15 out of the hook 101 come out and it could cause a misloading of the slide module 13 or to a slipping of the film roll 14 . 15 from the carrying organ 100 come. This possible cause of the accident can be prevented by the safety bar 103 be avoided.

For a simpler handle is the safety bar 103 around a hinge 104 so pivotable that it can also take a substantially horizontal position. This can be z. B. for removing de carrying member 100 from the area of the foil module 13 be used.

In the 3 is a frontal view of the carrying organ 100 from the 2 shown. Identical elements are also described here with the same reference numbers.

As shown here, it can be seen that the carrying member 100 in the axial direction in each case via a foil wrap 14 . 15 extends beyond. For this purpose, the support member 100 in particular a connection axis 107 between the guide rollers 105 on. This guide axis extends laterally over the film roll 14 . 15 out and from this axis 107 extends the carrying member 100 in the direction of the wave 102 the wrap 14 . 15 and to hooks 101 with which the carrying organ 100 the wave 102 the wrap 14 . 15 can record. As shown, it can be seen that on both sides of the shaft 102 axially the hooks 101 of the carrying organ 100 for receiving the shaft 102 are provided and record this. In particular, it is also possible that several sub-wraps 14 . 15 are provided for Teilfolienbahnen on a common shaft.

Somewhat below the hook 101 ie below the shaft 102 there is a swivel joint 104 on both ends of the carrying organ 100 , With this swivel 104 connected is the safety bar 103 , so around the hinge 104 is pivotable around. Next, the carrying member 100 in the area of the connection axis 107 a connecting element 108 on, with which it is connected to a transport device, not shown here. This transport device ensures a safe transport of the carrying member 100 and keeps it in the air.

The 4 shows the interaction between the wearer 100 and the transferwerk 12 , In particular, it is shown how the carrying member 100 in the foil module 13 of the transfer plant 12 is led into it. Identical elements are also provided here with the same reference numerals.

This is a lateral view of the transfer plant 12 , where for illustrative reasons, the side wall facing the viewer 204 is shown substantially transparent. The transfer work 12 has two end faces with such side walls 204 on, with the waves 102 the foil wrap 14 . 15 each at least indirectly with the side walls 204 get connected. The axis of the film wrap 14 . 15 thus runs transversely between these side walls 204 ,

Every sidewall 204 of the transfer plant 12 has for receiving a support member at least one guide slot 200 as a guide element for the carrying organ 100 on. In the case illustrated here, the film module comprises 13 one transfer ribbon supply roll each 14 and a transfer roll collecting roll 15 , Both can by means of the carrying organ 100 or by means of carrying organs 100 in the foil module 13 be put in and taken out of this. The side wall 204 Therefore, each has guide slots symmetrically in its two edge regions 200 for the collection and removal and management of carrying organs 100 for the respective film wraps 14 . 15 on.

The guide slots 200 have a first guide section 200a on, essentially diagonally down into the foil module 13 ushers. Next point the guide slots 200 a second guide section 200b which leads essentially directly vertically downwards.

For inserting the carrying organ 100 assign the leadership roles 105 lateral frets 106 on, with which the leadership roles 105 in the guide slots 200 be introduced centered. These lateral frets 106 are in the 3 shown. So it is sufficient a relatively inaccurate positioning of the guide rollers 105 of the carrying organ 100 relative to the guide slots 200 off to these automatically through the lateral frets 106 in the guide slots 200 to center. The leadership roles 105 continue, as in 3 shown, extensions 109 on which laterally protrude axially parallel to the connection axis through the guide slots to the outside. Through the lateral extensions 109 in conjunction with the lateral frets 106 Easily positioning the connection axis is easy 107 with the guide rollers 105 and thus the entire carrying organ 100 in the guide slots 200 allows.

For insertion of the carrying organ 100 become the leading roles 105 axially on both sides into the guide slots 200 ushered. For this purpose, an operator, for. B. also the safety bar 103 use to make an appropriate positioning of the support.

Became the carrying organ 100 in the upper part of the guide slots 200 introduced, it can now alone because of its weight in the guide slots 200 in the first guide section 200a diagonally on the guide rollers 105 in the foil module 13 be moved in. The guide slots 200 are dimensioned so that the first and second guide sections 200a . 200b in a transfer area 300 contiguous. This transfer area 300 is in the sidewall 204 in a place that is suitable when the leadership roles 105 of the carrying organ 100 At this position are the shaft 102 of the film roll in a storage area 201 of the foil module 13 located.

In this storage area 201 can in particular rails 202 be provided on which the shaft 102 the film wrap can run so that it is in an operating position 203 can be brought in during the operation of the Transferwerkes 12 are set up for film transfer.

The 5 shows an enlarged detail of the film module 13 in which the film supply roll 14 with the carrying organ 100 in the area of the transfer area 300 or the storage area 201 located. Identical elements are here again designated by the same reference numerals as in the preceding figures.

Are the leadership roles 105 in the transfer area 300 between the first and second guide sections 200a . 200b the guide slots 200 , as shown, is the film wrap 14 with his wave 102 on the rails 202 in the storage area 201 on.

To transfer the foil wrap 14 to the foil module 13 become the leadership roles 105 in the guide slots 200 in the second guide section 200b vertically downwards along an arrow 301 guided. Simultaneously with the guidance of the guide rollers 105 will also be the catch 101 of the carrying organ 100 by the same amount in the direction of the arrow 301 moved down. The dimensions of the second guide section 200b are sized so that the hook 101 the wave 102 completely free and sideways from the storage area 201 becomes pivotable.

A corresponding position of the hook member 101 of the carrying organ 100 in the storage area 201 is in the 6 shown. The hook 101 has the wave 102 fully released and can along an arrow from the storage area 201 be swung out. This swinging out, for example, manually by a user by means of the securing bracket 103 be made.

As can be easily seen, the carrying member 100 after the release of the shaft 102 through the hook 101 again opposite in the guide slots 200 be guided so that the carrying organ 100 again from the area of the transfer plant 12 is brought out. Accordingly, a hook member 101 from a carrying organ 100 empty in the guide slots 200 be introduced and under a wave 102 be swiveled to pick them up and back in the opposite direction along the guide slots 200 an empty supply roll 14 or a full collection wrap 15 again from the foil module 13 exit.

Through this described combination and interaction of wearer 100 and guide slots 200 or even improved by working with the hook 101 and the safety bar 103 can be a particularly safe transfer of foil wrap 14 . 15 and a safe removal of this foil wrap 14 . 15 into or out of a transfer plant 12 be realized in or out in a simple manner.

1

Foil transfer device

2

commissioned

3

inking

4

Plate cylinder

5

bow

6

Blanket cylinder

7

Impression cylinder

8th

application gap

9

applicator

10

transport direction

11

Sheet transfer cylinder

12

transfer unit

13

foil module

14

Transfer film supply roll

15

Transfer film collecting roller

16

Transfer sheet

17 18

guide rollers

19

transfer nip

20

transfer cylinder

21

Impression cylinder

22

transfer device

100

suspension unit

101

hook

102

wave

103

safety catch

104

swivel

105

leadership

106

lateral Federation

107

connecting axis

108

connecting element

109

renewal

200

guide slots

200a

first guide section

200b

second guide section

201

storage area

202

rails

203

operating position

204

side walls

300

Transfer area

301

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QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 0578706 B1 [0010]
• - DE 102005043940 A1 [0012]

Claims (9)

Device for transferring a transfer layer from at least one transfer film web ( 16 ) on a substrate ( 5 ), wherein the transfer film web ( 16 ) as at least one foil wrap ( 14 . 15 ) on a wave ( 102 ) and the wave ( 102 ) is interchangeably mounted by an exchange device, characterized in that the exchange device at least one releasable support member ( 100 ) for carrying the shaft ( 102 ) and at least one guide element ( 200 ) for safely guiding the carrying member ( 100 ) is present in an area of the device. Apparatus according to claim 1, characterized in that the carrying member ( 100 ) laterally at least two guide rollers ( 105 ) for engaging in guiding elements ( 200 ) and the carrying member ( 100 ) by lowering into the area of a transfer position ( 300 ) the wave ( 102 ), so that the shaft ( 102 ) in this secure transfer position ( 300 ) is located. Apparatus according to claim 2, characterized in that the carrying member ( 100 ) a hook element ( 101 ) attached to the shaft ( 102 ) and by lowering the carrying member ( 100 ) in the area of the transfer position ( 300 ) the wave ( 102 ) releases. Apparatus according to claim 2, characterized in that the guide rollers ( 105 ) a lateral collar ( 106 ) for centering the guide rollers ( 105 ) in the guiding elements ( 200 ) exhibit. Device according to one of claims 1, 2 and 4, characterized in that the guide elements as guide grooves or guide slots ( 200 ) in a region substantially above an operating position ( 203 ) of the shaft are provided or attachably provided in at least one housing part of the device or at least one housing part. Device according to at least one of claims 1 to 5, characterized in that the guide elements ( 200 ) are formed so that they are in a first guide section ( 200a ) the carrying member ( 100 ) substantially in an area above a transfer position ( 300 ) the wave ( 102 ) and in a subsequent second management section ( 200b ) essentially the carrying member ( 100 ) so that the shaft ( 102 ) in the transfer position ( 300 ) of the support member ( 100 ) is solved. Device according to one of claims 1 to 3 and 6, characterized in that the carrying member ( 100 ) a substantially downwardly projecting securing bracket ( 103 ) to avoid direct contact of a film roll ( 14 . 15 ) on the shaft ( 102 ) with further device parts. Method for transferring a shaft ( 102 ) with at least one foil wrap ( 14 . 15 ) in a device for transferring a transfer layer from at least one transfer film web (US Pat. 16 ) according to one of the preceding claims, characterized in that a carrying member ( 100 ) detachable with the shaft ( 102 ), in guide elements ( 200 ) into a transfer area ( 300 ) and further from the transfer area ( 300 ) is lowered so that the carrying member ( 100 ) from the wave ( 102 ) is solved. A method according to claim 8, characterized in that for guiding the carrying member ( 100 ) in the guiding elements ( 200 ) substantially the weight of wearer ( 100 ), Wave ( 102 ) and film wrap ( 14 . 15 ) is being used.