ADJUSTABLE CONVERTING ARRANGEMENT FOR A FLAT SUBSTRATE, CASSETTE, UNIT AND MACHINE PROVIDED THEREWITH

• US 20160008998A1
• Filed: 03/04/2014
• Published: 01/14/2016
• Est. Priority Date: 03/07/2013
• Status: Active Grant

• Current Assignee: Bobst Mex SA (JBF Finance SA)
• Original Assignee: Bobst Mex SA (JBF Finance SA)
• Inventors: DNISSE, Guillaume, KUHN, Christophe
• Granted Patent: US 10,391,662 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B26D 7/1818 by pushing out
• CPC Class Codes: B26D 7/265 Journals, bearings or supports for positioning rollers or cylinders relatively to each other
• CPC Class Codes: B26F 1/384 using rotating drums
• CPC Class Codes: B31B 50/005 involving a particular layout of the machinery or relative arrangement of its subunits
• CPC Class Codes: B31B 50/16 Cutting webs
• CPC Class Codes: B31B 50/256 using tools mounted on a drum
• CPC Class Codes: B31B 50/88 Printing; Embossing
• CPC Class Codes: B31F 1/07 Embossing , i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profilesB31F1/128 takes precedence; corrugating B31F1/20; embossing in combination with printing B41F19/02, B41M1/24; typewriters for embossing B41J3/38; stamping in combination with deforming B41K3/36
• CPC Class Codes: B31F 1/10 by rotary tools
• CPC Class Codes: B31F 2201/0753 Roller supporting, positioning, driving means
• CPC Class Codes: B31F 2201/0794 Cutting

Abstract

An arrangement for transforming a planar support (2) includes first and second rotating cylindrical transformation tools (16, 17), cooperating to convert the support (2), first and second side bearings (26, 27), holding the first tool (16) for rotation (Rs), third and fourth side bearings (29, 31), holding the second tool (17) for rotation (Ri), spacers (43, 44, 46, 47) having an inclined face (48) and slidable (S) to adjust the respective distances (e, e1, e2) between the first and third bearings (26, 29) and between the second and fourth bearings (27, 31), to set a radial gap (20) between the two tools (16, 17). In another solution, either as an alternative to or in cooperation with the first solution, the spacer (43) is moved (S) by a differential screw (57) having a first thread (58) that engages with a tapped hole (59) in an integral part (61) of one of the bearings (29) and a second thread (62) different than the first thread (58) and engaging with a tapped hole (63) in the spacer (43).

Claims

1. A converting arrangement for a flat substrate, said converting arrangement comprising:

a first and a second, cylindrical, rotary, converting tool located, configured and operable to cooperate to convert the substrate;

a first and a second lateral bearing, respectively toward an end of the first tool and holding the first tool for rotation;

a third and a fourth lateral bearing, respectively toward an end of the second tool and holding the second tool for rotation;

adjustment spacers each having an inclined face and each spacer being slidable along the inclined face thereof to adjust each respective gap between the first and the third bearing and between the second and the fourth bearing so as to adjust a radial gap between the first and second tools; and

the adjustment spacers comprise two of the spacers which are inserted between the first and the third bearings and two of the spacers which are inserted between the second and the fourth bearings.

2. A converting arrangement according to claim 1, wherein at least one of the spacers is displaceable, a differential screw has a first thread which cooperates with a third thread of a part of the arrangement which is joined with one of the bearings, and has a second thread which is distinct from the first thread and which cooperates with a fourth thread of the spacer.

6. An arrangement according to claim 1, wherein the inclined face of the spacer is oriented in a longitudinal direction of the arrangement, transversely to the direction of the tools and between the bearings at the ends of the tools.

7. An arrangement according to claim 6, wherein the spacer slides respectively between the third or the fourth bearing and a part with an inclined face which is locked to the first or to the second bearing.

8. An arrangement according to claim 7, further comprising a plane wedge having a predefined thickness inserted on the one hand between the first or the second bearing and on the other hand at the part of the arrangement with the inclined face.

9. An arrangement according to claim 1, wherein the first and the second tool together are at least one of a cutting tool, an embossing tool, a creasing tool and a waste ejecting tool.

10. A converting cassette for a flat substrate wherein said converting cassette comprises a converting arrangement according to claim 1.

11. A converting unit for a flat substrate, further comprising said converting unit includes at least one converting cassette according to claim 10.

12. A converting unit for a flat substrate, wherein said converting unit comprises at least one converting arrangement according to claim 1.

13. A machine for producing packaging from a flat substrate, said machine comprising a converting unit according to claim 12.

3. A converting arrangement for a flat substrate, said converting arrangement comprising:

a first and a second, cylindrical, rotary converting tool located, configured and operable to cooperate to convert the substrate;

a first and a second lateral bearing, respectively toward an end of the first tool and holding the first tool for rotation;

a third and a fourth lateral bearing, respectively toward an end of the second tool and holding the second tool for rotation;

adjustment spacers each having an inclined face and each spacer being slidable along the inclined face thereof to adjust each respective gap between the first and third bearing and between the second and fourth bearing so as to adjust a radial gap between the first and second tools;

at least one of the spacers is displaceable, a differential screw has a first thread which cooperates with a third thread of a part of the arrangement which is joined with one of the bearings, and which has a second thread, which is distinct from the first thread and which cooperates with a fourth thread of the spacer.

4. An arrangement according to claim 3, further comprising the spacers comprise two of the spacers inserted between the first and the third bearings, and two of the spacers inserted between the second and the fourth bearings.

5. An arrangement according to claim 3, wherein the first and the second threads of the screw have respective different pitches.