Device for the embossing and satining of flat materials
The device for the satining and embossing of innerliners for tobacco, food and pharmaceutical products, comprises a roll with a pin up configuration of the teeth and a roll with a pin down configuration of corresponding recesses. At only one of the rolls the part corresponding to the logo has been worked on to form the logo, whereas the recesses, respectively the teeth, on the other roll have not been altered in their shape. This allows a lower cost production of the rolls since no matching pairs of rolls have to be produced and exchanged for wear or changing logo.
Latest Patents:
- Multi-threshold motor control algorithm for powered surgical stapler
- Modular design to support variable configurations of front chassis modules
- Termination impedance isolation for differential transmission and related systems, methods and apparatuses
- Tray assembly and electronic device having the same
- Power amplifier circuit
The present invention refers to a device for the embossing and satining of flat materials according to the preamble of claim 1.
Embossing and satining logos with the pin up—pin down configuration, e.g. according to
Prior art embossing rolls have three different zones, namely the satining zone, the logo embossing zone where the metallized part of the innerliner is not satined and remains glossy, whereby this part can be left as such or be worked, and the adjustment zone. According to the quality of the innerliners, the requested precision of the embossing and satining and embossing speed the rolls are supported in expensive bearings and frames. The wear of the rolls and the change of the logo compel to stop the production process, to dismount the relatively heavy housing, to exchange and readjust the rolls and to start anew the embossing process.
The prior art pin up—pin down rolls with a logo are produced in pairs, wherein e.g. first the pin up roll, which is the driving roll, is produced and the logo manufactured thereon. Normally the roll is hardened and is employed for forming the counter roll, that is e.g. the pin down roll.
This roll is the exact counter part of the first roll, see
-
- a) in the case different logos are to be embossed, different pairs of rolls must be produced, and
- b) in the case one of the rolls is worn, both rolls must be exchanged, even if one roll might have less wear than the other roll.
For the prior art logo embossing method using a pin up—pin down configuration, e.g. according to
In consequence, the production of the pairs of rolls is very cost intensive enhanced by the fact that the rolls must be exchanged by pairs and that each change of the logo means the exchange of the pair of rolls.
Based on this prior art, it is a first object of the invention to provide for a device for satining and embossing innerliners using the pin up—pin down configuration with much lower production costs of the rolls, where it is not necessary to produce the rolls in pairs and therefore there is no need to replace both rolls together, be it for reasons of wear or for changing the logo. This object is attained with a device according to claim 1.
It is a second object of this invention to provide for a satining and embossing device with a pin up—pin down configuration with enhanced logo embossing capacity. This object is attained with a satining and embossing device according to claim 3.
The invention will be explained with reference to the accompanying drawings of embodiments thereof.
In the
Zone Z1 is the pin up—pin down satining zone, where the teeth and recesses are unaltered. Zone Z2 defines the logo zone, meaning in
Zone Z3 defines the zone with the adjustment means and comprises in general an adjustment ring 12, 13 either on one or on both ends of the rolls and adjustment teeth 14, 15, which are coarser teeth than for satining. The rolls are first adjusted in the mounting phase with the aid of the adjustment ring(s) and then with the aid of the adjustment teeth. Both adjustment means allow the precise adjustment of the two matching logo parts before operation.
According to
According to a new method of producing a pin down roll made of relatively soft material like rubber or temperature stable plastic material, the hardened pin up roll is pressed upon the roll to become the pin down roll until the recesses are formed. The further use of such pin down rolls is the same as for metal pin down rolls. This method can also be inverted in that a hardened pin down roll is pressed against a roll of relatively soft material like rubber or temperature stable plastic material until the outstanding pin up teeth are formed on the now pin up roll. The further use of such pin up rolls is the same as for metal pin up rolls.
The inverse case is also possible, wherein only the pin down roll, which can be the driving one, has the logo zone, whereby the counter roll is the pin up roll having unaltered teeth only.
For producing the rolls it is advantageous to produce two pin up rolls, one of it serving as master roll for forming pin down rolls, whose recesses are not altered in the form, and to work on the second pin up roll the parts for forming the logo.
In the embodiment of
-
- a) the production of the rolls is much simplified in that only one roll has the logo and the counter roll only recesses or teeth with an unaltered shape, and therefore no matching paired production of the rolls is needed,
- b) the rolls need no adjustment zone Z3 with the adjustment teeth and the adjustment rings,
- c) only the worn roll must be exchanged, not the pair of rolls,
- d) it is possible to design a series of rolls with different logos, so that these logo rolls can easily be exchanged, while the counter roll remains unexchanged.
The easy exchange of rolls, in pairs or one roll alone, can be effectuated with the means according to U.S. Pat. No. 6,665,998 to the same applicant.
The
In
In
It is of course possible, for certain applications, to utilize one or the other or both of the adjustment means of zone Z3, see
Claims
1-9. (canceled)
10. A device for the satining and embossing of flat materials, in particular innerliners, for tobacco, food and pharmaceutical products, comprising:
- a roll with a pin up configuration of the teeth; and a
- further roll with a pin down configuration of corresponding recesses, wherein:
- on only one of the rolls the part corresponding to the logo has been worked on to form the logo, whereas the recesses, respectively the teeth, on the other roll have not been altered in their shape.
11. The device according to claim 10, wherein:
- both rolls comprise a zone with satining teeth, respectively recesses, and one of the rolls comprises a further zone with the parts for embossing a logo.
12. The device according to claim 10, wherein:
- said further zone is provided with a metallic layer.
13. The device according to claim 10, wherein:
- said further zone and the area on the other roll corresponding to the logo is provided with a metallic layer.
14. The device according to claim 10, wherein:
- said zone is partly provided with a metallic layer.
15. The device according to claim 10, wherein:
- both rolls are provided with adjustment means in the mounting phase.
16. The device according to claim 10, wherein:
- both rolls are provided with synchronizing means.
17. A device for the satining and embossing of innerliners, in particular for tobacco, food and pharmaceutical products, comprising:
- a roll with a pin up configuration of the teeth; and
- a further roll with a pin down configuration of corresponding recesses, wherein:
- at only one of the rolls a part corresponding to a logo has been worked on to form the logo, whereas the recesses, respectively the teeth, on the other roll have not been altered in their shape.
18. A device for the satining and embossing of innerliners, in particular for tobacco, food and pharmaceutical products, comprising:
- a roll with a pin up configuration of the teeth; and
- a further roll with a pin down configuration of corresponding recesses, wherein:
- at least at one of the rolls the part corresponding to a logo is provided with a metallic layer.
Type: Application
Filed: Jun 21, 2005
Publication Date: Dec 22, 2005
Applicant:
Inventor: Charles Boegli (Marin)
Application Number: 11/156,557