WO2000009334A1 - Bearbeitungszentrum mit heissprägeaggregat, einwechselbares heissprägeaggregat und bearbeitungszentrum mit speziellem speichermagazin für ein derartiges heissprägeaggregat - Google Patents
Bearbeitungszentrum mit heissprägeaggregat, einwechselbares heissprägeaggregat und bearbeitungszentrum mit speziellem speichermagazin für ein derartiges heissprägeaggregat Download PDFInfo
- Publication number
- WO2000009334A1 WO2000009334A1 PCT/EP1999/005852 EP9905852W WO0009334A1 WO 2000009334 A1 WO2000009334 A1 WO 2000009334A1 EP 9905852 W EP9905852 W EP 9905852W WO 0009334 A1 WO0009334 A1 WO 0009334A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hot stamping
- stamping unit
- workpiece
- unit according
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
Definitions
- the invention relates to a machining center with at least one support that can be moved in the X, Y and advantageously also in the Z direction, on which a hot-stamping unit for applying a lacquer or coating located on a carrier film
- Transfer layer is attached to a workpiece surface, in particular a curved workpiece contour of a plate-shaped workpiece. Furthermore, the invention relates to such a hot stamping unit, which is specially designed to be exchangeable in a spindle unit of a processing machine, in particular a processing center.
- the invention also relates to a machining center with a spindle unit movable in the X, Y and Z directions for receiving machining tools and machining units for wood and plastic material or the like, which is equipped with a special storage magazine for storing one or more hot stamping units.
- a hot stamping process uses a carrier film on which there is a lacquer or transfer layer to be applied to the workpiece.
- the carrier film with the lacquer or transfer layer on it is pressed firmly onto the workpiece contour to be coated by means of a so-called embossing roller.
- embossing roller By the Pressure and heat acting on the carrier film detach the varnish or transfer layer from the carrier film and stick to the workpiece.
- the carrier film with the lacquer or transfer layer thereon is also referred to as a transfer film or transfer finish film. This means that before the lacquer or transfer layer is detached, the transfer finish film comprises the carrier film and the transfer layer located thereon.
- Hot stamping with such transfer foils can be carried out in a continuous process on the one hand, and stationary on the other. In the continuous process, hot stamping can only be used on straight workpieces. Stationary machines, on the other hand, are used for workpieces with curved contours.
- Stationary machines of this type are tabletop devices which require manual workpiece guidance.
- the workpieces In order to be able to trace the curved workpiece contour, the workpieces have to be guided past a rotatable but stationary embossing roller in these table devices.
- the workpiece is pressed onto the embossing roller manually or with an auxiliary device.
- the workpiece With these table-top devices, the workpiece must be manually guided past the embossing roller. Accordingly, these table devices can only be used for relatively small workpieces to be coated, since larger parts can no longer be handled.
- the working speeds that can be achieved with such stationary devices are relatively low. As a result, however, the workpiece throughput rates to be achieved are also unsatisfactory.
- the well-known hot stamping table devices work with stamping rollers that are rubber-coated. This rubber coating has a negative shape corresponding to the contour of the workpiece profile, so that the lacquer or transfer layer over the entire surface of the
- the film When hot stamping, the film is generally heated using hot air or infrared rays.
- the process temperature here is approx. 160 ° C to 180 ° C.
- the lacquer or transfer layer also called dry lacquer layer
- the used carrier film is rolled up in a winding device.
- the technical problem on which the invention is based is to create a device with which machine-workable, in particular automatable, hot stamping of any workpiece contours is possible. This technical problem is solved by a machining center with the features of claim 1 or by a hot stamping unit with the features of claim 2.
- the invention is based on the technical problem of providing a machining center which is optimized for such a hot stamping unit. This problem is solved by a machining center with the features of claim 21.
- a hot stamping unit in the sense of the invention can also be referred to as a transfer finish unit.
- the invention is based on the idea that instead of moving the workpiece, as is necessary in the prior art, to keep the workpiece stationary and to guide the devices required for hot stamping around the contour to be coated or the workpiece surface.
- the equipment required to carry out hot stamping is guided around the workpiece, it is now possible to machine even larger workpieces.
- a somewhat curved contour can now be automatically traced without any problems.
- several are to be moved separately
- Hot stamping units can process several workpieces fastened on a work table at the same time.
- Hot embossing unit can be program-controlled in a spindle unit of a per se known machining center can eincicbar and in the inserted state moves' along the workpiece contour. It is therefore possible for the first time, regardless of the workpiece contour
- the hot stamping unit which can be exchanged in the spindle unit of the processing center is equipped with an unwinding device for holding and unwinding a film roll comprising the carrier film with the lacquer or transfer layer thereon.
- an unwinding device for holding and unwinding a film roll comprising the carrier film with the lacquer or transfer layer thereon.
- a winding device for winding used carrier film.
- any contour can now be traced optimally with the embossing roller, so that the traced contour is coated with the lacquer or transfer layer by detaching the lacquer or transfer layer located on the carrier film under pressure and in particular heat.
- the traced contour is coated with the lacquer or transfer layer by detaching the lacquer or transfer layer located on the carrier film under pressure and in particular heat.
- several workpieces are coated simultaneously on the outer contours of a machining center using the hot stamping method.
- a hot stamping unit of the type according to the invention has an internal heating device for heating the stamping roller from the inside and an external heating device for heating the stamping roller from the outside. So far, only an external heating device for heating the outside of the embossing roller has been provided for the stationary table devices.
- an internal heating device is now advantageously installed, which under certain circumstances allows the temperature of the external heating to be reduced, as a result of which overheating of the mostly rubberized embossing rollers is minimized and the life of such an embossing roller is thereby advantageously increased.
- the service life of such a hot stamping unit can of course also be extended.
- the embossing roller is driven by a motor.
- This enables a more uniform heating of the embossing roller with the heating devices, in that the embossing roller is driven by a motor while it is warming up.
- a more even heating of the roll is thus achieved with both the inside and outside heating, in particular through the outside heating, since this cannot be arranged around the entire outer circumference of the embossing roll due to its design.
- the motorized drive of the stamping roller can continue to drive it even if there is an emergency stop, but the heating still emits heat, which could damage the rubber coating of the stamping roller if the stamping roller did not turn.
- the embossing roller is advantageously coupled to the aforementioned motor drive with the interposition of a freewheel.
- a very uniform heating from the inside of the embossing roller to the working temperature is possible in that the embossing roller is hollow on the inside and the internal heating device is arranged in this cavity.
- the interior heating device is advantageously designed in such a way that it uniformly heats the entire cavity wall of the embossing roller. This is possible, for example, with an infrared heater, but also with a hot air device.
- the embossing roller is advantageous for the embossing roller to be rotated by means of the motor drive during the heating process, as a result of which a more uniform heating of the embossing roller and also local overheating of individual parts of the embossing roller are avoided.
- a very flexible and optimized training for the individual application is given by the fact that the embossing roll is held interchangeably in the hot stamping unit. This makes it possible to insert a special embossing roller, which has an outer contour that is matched to the respective workpiece contour, into the hot stamping unit. This means that a hot stamping unit can be used for a wide variety of workpiece contours to be coated.
- the embossing roll is slidably mounted in the hot stamping unit. It is thus possible for the carrier film not to rest against the embossing roller in a waiting position and for the carrier foil to lie against the embossing roller in a working position. This ensures that the carrier film does not overheat in a waiting position and that the embossing roller presses the carrier film with the lacquer or transfer layer thereon onto the tool surface only when moving along the workpiece surface to be coated.
- a technically simple and inexpensive solution is that the embossing roller can be moved by motor or pneumatically from the waiting position to the working position and vice versa.
- the winding unit is motor-driven, the tension of the carrier film can be controlled.
- the winding device can be driven via the spindle unit of the machining center. This eliminates the otherwise necessary separate drive for the winding unit.
- the existing drive option of the machining center, i.e. the spindle unit, is thus optimally used.
- a braking device is optimally present in the hot stamping unit, with which the unwinding speed of the carrier film with the lacquer or transfer layer thereon can be adjusted by the unwinding device. It is particularly advantageous for this if the braking device is connected directly downstream of the unwinding device, so that the unwinding speed can be optimally adjusted by the braking device and the motor drive of the winding device.
- the exchangeable hot stamping unit has an interface that fits a spindle unit according to EP 96 107 595.
- the interface of the hot stamping unit essentially corresponds to the interfaces of other units which can be exchanged into the spindle unit of the machining center; with the restriction that of course only the supply facilities necessary for the hot stamping unit are available.
- a hot stamping unit of the type mentioned above is designed to be exchangeable in a spindle unit, in particular with a connection point compatible with the spindle unit according to EP 96 107 595, such a hot stamping unit can also be replaced in a spindle unit of a specially designed continuous machine for special applications. This means that a spindle unit is essentially stationary in a continuous machine for processing the edges of a workpiece and the corresponding hot stamping unit for coating the processed
- a joint is present in the hot stamping unit, with which a pivoting of the entire hot stamping unit compared to a receptacle for insertion in the spindle unit of the machining center.
- this pivoting of the hot stamping unit around the joint can be carried out by means of an electric motor. This would make it possible, for example, to coat both vertical and horizontal surfaces with the lacquer or transfer layer using the hot stamping method. In addition, inclined surfaces could also be coated with this special embodiment of a hot stamping unit according to the invention.
- a machining center as is well known in the present technical field, is optimally equipped for use with a hot stamping unit with a storage magazine for storing one or more hot stamping units of the aforementioned type, into or out of which a hot stamping unit is inserted or removed by means of the spindle unit of the machining center is deployable.
- a power connection in the storage magazine with which the heating devices of a hot stamping unit stored in the storage magazine can be operated.
- Fig. 1 is a schematic plan view of a hot stamping unit according to the invention, which in a spindle unit
- Fig. 2 is a schematic representation 'of different drives in a hot stamping unit according to Figures 1 and
- Fig. 3 is a schematic representation of a hot stamping process in different process steps when tracing a contour with a hot stamping unit of the type according to the invention.
- An unwinding device 1 comprises a non-driven film plate, which serves to receive a film roll 11.
- the film roll 11 here comprises a wound carrier film 12 with a lacquer or transfer layer thereon, which is to be applied to a workpiece contour.
- the unwinding device 1 is followed by a braking device 2, which comprises a deflection roller 22 and a pneumatically or electrically actuated, displaceable brake pad 21 opposite the deflection roller 22. Between the Deflection roller 22 and the brake pad 21, the carrier film 12 provided with the lacquer or transfer layer is passed through.
- a braking device 2 which comprises a deflection roller 22 and a pneumatically or electrically actuated, displaceable brake pad 21 opposite the deflection roller 22.
- the braking device 2 is followed by a film guide 3, which has a curved outer surface 31, along which the carrier film 12 with the lacquer or transfer layer located thereon slides and is guided to an embossing roller 4.
- embossing roller 4 It should also be noted that the lacquer or transfer layer is of course on the side of the carrier film which does not slide along the surface 31.
- the curved foil guide 3 ends on the outer casing 41, here a rubberized layer, the embossing roller 4.
- the embossing roller 4 is rotatably mounted and, as will be explained in more detail later with reference to FIG. 2, can be driven by a motor 17.
- the embossing roller 4 is hollow-cylindrical in the interior and, as already mentioned, is formed on the outside with a rubberized outer jacket 41 which is shaped in accordance with the workpiece contour that can be applied.
- an internal heating device 6 is arranged, which on all sides
- the inside wall of the cavity of the embossing roller 4 radiates and the embossing roller 4 is heated from the inside.
- the embossing roller 4 is enclosed on the outside over a partial circumference by an external heating device 7 with which the rubberized outer jacket 41 can be heated.
- this external heating device 7 there is an opening 71 through which a temperature sensor is passed, which measures the surface temperature of the rubberized outer casing 41 of the embossing roller 4 and reports it to a measuring system 10, so that the external heating 7 and / or the internal heating device 6 correspond to the respective requirements be regulated.
- a swivel bracket 8 is pivotally mounted, on which a deflection roller is rotatably supported, around which the used carrier film 12 is deflected and is guided to a winding device 13 connected downstream.
- the winding device 13 comprises a motor-driven roller for receiving the used carrier film 12.
- the individual drives of a previously described hot stamping unit according to the invention can be better seen from the schematic illustration according to FIG. 2.
- a motor 17 installed in the hot stamping unit drives the stamping roller 4 via a belt drive 14.
- a freewheel 15 is interposed, which allows the embossing roller 4 to rotate faster than specified by the motor 17.
- the winding device 18 is driven by means of a belt drive 16 via the spindle 42.
- the required rotational speed of the individual components can be determined by appropriate design of the belt drives 14 and 16; for example by the number of teeth of individual gears.
- step a the embossing roller 4 is withdrawn into a waiting position, i.e. the carriage 9 is retracted compared to the illustration in FIG. 1.
- the embossing roller 4 is heated to the working temperature by means of the heating devices 6 and 7.
- the embossing roller 4 is rotated via the motor 17 and the belt drive 14.
- the hot stamping unit is brought up to the workpiece contour 51 of the workpiece 50 to be coated and the carriage 9 is extended in accordance with step b), so that the embossing roller 4 lies against the inside of the carrier film 12 and presses it against the contour 51.
- the lacquer or transfer layer thereon is transferred to the workpiece contour 51 in step c) and d) by means of the pressure exerted by the stamping roller 4, and the used carrier foil wound up by means of the winding device 13.
- the swivel bracket 8 with the deflection roller serves as a detachment point for the lacquer or transfer layer located on the carrier film 12. That is, in the illustration according to c) of FIG.
- the lacquer or transfer layer adheres to the swivel bracket 8 both on the carrier film 12 and on the workpiece contour 51 and only detaches after deflection around the swivel bracket 8.
- the stamping roller 4 can thus be moved along essentially any contours.
- the nachfahrbare contour here is substantially determined by the outer diameter "of the embossing roller. 4
- step e) in FIG. 3 the hot stamping unit is moved away from the workpiece contour 51 and at the same time the stamping roller 4 is disengaged from the carrier film 12 by means of the slide 9.
- the embossing roller 4 rotates further in order to avoid overheating of the roller, in particular by the heating device 7, but also by the heating device 6.
- the embossing roller 4 lifts off.
- the hot stamping unit is continued until the swivel bracket 8 has also passed the contour. Then the winding device 13 is also stopped.
- the hot stamping unit can now be stored in the storage magazine (not shown here) and, if necessary, kept at operating temperature or a waiting temperature.
- the drive of the embossing roller 4 must of course also be secured by the motor 17.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Duplication Or Marking (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Decoration By Transfer Pictures (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99940196A EP1105293A1 (de) | 1998-08-12 | 1999-08-12 | Bearbeitungszentrum mit heissprägeaggregat, einwechselbares heissprägeaggregat und bearbeitungszentrum mit speziellem speichermagazin für ein derartiges heissprägeaggregat |
| US09/778,810 US20010032554A1 (en) | 1998-08-12 | 2001-02-08 | Processing center comprising a hot-stamping machine, hot-stamping machine and processing center comprising a special storage magazine for such a hot-stamping machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19836566A DE19836566A1 (de) | 1998-08-12 | 1998-08-12 | Bearbeitungszentrum mit Heißprägeaggregat, einwechselbares Heißprägeaggregat und Bearbeitungszentrum mit speziellem Speichermagazin für ein derartiges Heißprägeaggregat |
| DE19836566.7 | 1999-08-12 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/778,810 Continuation US20010032554A1 (en) | 1998-08-12 | 2001-02-08 | Processing center comprising a hot-stamping machine, hot-stamping machine and processing center comprising a special storage magazine for such a hot-stamping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000009334A1 true WO2000009334A1 (de) | 2000-02-24 |
Family
ID=7877318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1999/005852 Ceased WO2000009334A1 (de) | 1998-08-12 | 1999-08-12 | Bearbeitungszentrum mit heissprägeaggregat, einwechselbares heissprägeaggregat und bearbeitungszentrum mit speziellem speichermagazin für ein derartiges heissprägeaggregat |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20010032554A1 (de) |
| EP (1) | EP1105293A1 (de) |
| DE (1) | DE19836566A1 (de) |
| WO (1) | WO2000009334A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10218842B4 (de) | 2002-04-23 | 2005-03-17 | Bizerba Gmbh & Co. Kg | Druckvorrichtung und Verfahren zum Bedrucken eines Informationsträgers |
| DE102013216113A1 (de) * | 2013-08-14 | 2015-03-05 | Homag Holzbearbeitungssysteme Gmbh | Beschichtungsaggregat |
| CN108407441A (zh) * | 2018-05-11 | 2018-08-17 | 濮阳市东宝科技发展有限公司 | 一种具有转印膜更换装置的热转印设备 |
| IT202000010171A1 (it) * | 2020-05-08 | 2021-11-08 | G M C Di G Maccaferri E Claudio Snc | Apparato di trasferimento, fissaggio e lucidatura di immagini stampate su superfici in plastica o in metallo di oggetti tridimensionali |
| JP7530043B2 (ja) * | 2020-10-21 | 2024-08-07 | セイコーエプソン株式会社 | 駆動伝達装置及び液体吐出装置 |
| CN112776466A (zh) * | 2021-02-04 | 2021-05-11 | 四川通安实业有限公司 | 一种快速加热稳定控温的车牌烫印机 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3004518A1 (de) * | 1980-02-07 | 1981-08-13 | Laube, Reiner, 6000 Frankfurt | Verfahren und vorrichtung zum einfaerben von ski-belaegen sowie derartige ski-belaege |
| DE4421559A1 (de) * | 1994-06-20 | 1995-12-21 | Osmetric Entwicklungs Und Prod | Verfahren zum Herstellen eines beschichteten und mit einer Struktur, Textur oder Maserung versehenen Subtrats |
| EP0743139A1 (de) * | 1995-05-15 | 1996-11-20 | Homag Maschinenbau Ag | Bearbeitungszentrum mit einer Spindeleinheit zur Aufnahme von Bearbeitungswerkzeugen und Bearbeitungsaggregaten für Holz- und Kunststoff-Werkstoffe |
| EP0900654A1 (de) * | 1997-09-02 | 1999-03-10 | Toppan Printing Co., Ltd. | Verfahren und Gerät zur Erzeugung von Übertragungsdruckbildern und Übertragungsdrucktrommel hierfür |
| WO1999032291A1 (en) * | 1997-12-23 | 1999-07-01 | Datacard Corporation | Control for an image transfer section of a card printer |
-
1998
- 1998-08-12 DE DE19836566A patent/DE19836566A1/de not_active Withdrawn
-
1999
- 1999-08-12 EP EP99940196A patent/EP1105293A1/de not_active Withdrawn
- 1999-08-12 WO PCT/EP1999/005852 patent/WO2000009334A1/de not_active Ceased
-
2001
- 2001-02-08 US US09/778,810 patent/US20010032554A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3004518A1 (de) * | 1980-02-07 | 1981-08-13 | Laube, Reiner, 6000 Frankfurt | Verfahren und vorrichtung zum einfaerben von ski-belaegen sowie derartige ski-belaege |
| DE4421559A1 (de) * | 1994-06-20 | 1995-12-21 | Osmetric Entwicklungs Und Prod | Verfahren zum Herstellen eines beschichteten und mit einer Struktur, Textur oder Maserung versehenen Subtrats |
| EP0743139A1 (de) * | 1995-05-15 | 1996-11-20 | Homag Maschinenbau Ag | Bearbeitungszentrum mit einer Spindeleinheit zur Aufnahme von Bearbeitungswerkzeugen und Bearbeitungsaggregaten für Holz- und Kunststoff-Werkstoffe |
| EP0900654A1 (de) * | 1997-09-02 | 1999-03-10 | Toppan Printing Co., Ltd. | Verfahren und Gerät zur Erzeugung von Übertragungsdruckbildern und Übertragungsdrucktrommel hierfür |
| WO1999032291A1 (en) * | 1997-12-23 | 1999-07-01 | Datacard Corporation | Control for an image transfer section of a card printer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19836566A1 (de) | 2000-02-17 |
| EP1105293A1 (de) | 2001-06-13 |
| US20010032554A1 (en) | 2001-10-25 |
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