Method for the attachment of a plurality of knife holders onto a slitting machine, a mounting kit for the attachment of a plurality of knife holders onto a slitting machine, a knife holder, a positioning bar, and a slitting machine

Abstract

The present invention relates to a method, a mounting kit, a positioning bar, a knife holder, and a slitting machine, by means of which a plurality of knife holders can be attached, at a determined spacing from one another, onto a traverse of the slitting machine. The method comprises in particular the following steps: Providing at least two knife holders, Providing at least one positioning bar, wherein the positioning bar has at least two form-fit configurations, Making a mounting unit, by the attaching the knife holders onto the positioning bar at the positions determined by the form-fit configurations, wherein adjacent form-fit configurations on the positioning bar determine the spacing between adjacent knife holders, Positioning the mounting unit on the traverse, Fixing the knife holders onto the traverse at the spacing from one another determined by the positioning bar.

Claims

1. Method for the attachment of a plurality of knife holders (1), at a determined spacing (2) from one another, onto a traverse (8) of a slitting machine, comprising at least the following steps: providing at least two knife holders (1), providing at least one positioning bar (4.1a, 4.1b, 4.2a, 4.2b), wherein the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) has at least two form-fit configurations (5.1, 5.2, 5.3), making a mounting unit (6.1, 6.2), by attaching the knife holders (1) onto the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) at the positions determined by the form-fit configurations (5.1, 5.2, 5.3), wherein adjacent form-fit configurations (5.1, 5.2, 5.3) on the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) determine the spacing between adjacent knife holders (1), positioning the mounting unit (6.1, 6.2) on the traverse (8), and fixing of at least one knife holder (1) onto the traverse (8).

2. Method according to claim 1, wherein for purposes of altering the spacing (2) of adjacent knife holders (1), the knife holders (1) are removed from the traverse (8), and are attached to at least one further positioning bar, the form-fit configurations (5.1, 5.2, 5.3) of which are at a different spacing from one another than that on the previously used profile bar (4.1a, 4.1b, 4.2a, 4.2b).

3. Mounting kit for at least one mounting unit (6.1, 6.2), for purposes of attaching a plurality of knife holders (1) at a determined spacing (2) from one another onto a traverse (8) of a slitting machine, comprising: at least two knife holders (1), and at least one positioning bar (4.1a, 4.1b, 4.2a, 4.2b), wherein the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) has at least two form-fit configurations (5.1, 5.2, 5.3), wherein for purposes of making a mounting unit (6.1, 6.2), the knife holders (1) can be attached to the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) at the positions determined by the form-fit configurations (5.1, 5.2, 5.3), wherein adjacent form-fit configurations (5.1, 5.2, 5.3) on the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) determine the spacing (2) between adjacent knife holders (1).

4. Mounting kit according to claim 3, wherein a positioning bar group (3.1, 3.2) with at least two positioning bars (4.1a, 4.1b, 4.2a, 4.2b) is provided for each mounting unit (6.1, 6.2), wherein the positioning bars (4.1a, 4.1b, 4.2a, 4.2b) in each case have at least two form-fit configurations (5.1, 5.2, 5.3) for purposes of determining the position of the knife holders (1).

5. Mounting kit according to claim 3, wherein at least two positioning bar groups (3.1, 3.2) are provided, in each case with at least one positioning bar (4.1a, 4.1b, 4.2a, 4.2b), wherein the positioning bar(s) (4.1a, 4.1b) of one positioning bar group (3.1) differ from the at least one positioning bar (4.2a, 4.2b) of another positioning bar group (3.2) from one another in terms of the spacing (2) between the form-fit configurations (5.1, 5.2, 5.3).

6. Mounting kit according to claim 3, wherein the form-fit configurations (5.1, 5.2, 5.3) are in each case designed as at least one projection.

7. Mounting kit according to claim 6, wherein the knife holders (1) in each case have at least one recess for purposes of receiving the at least one projection.

8. Mounting kit according to claim 3, wherein the form-fit configurations (5.2) comprise at least one elastically-deflectable fixing element.

9. Mounting kit according to claim 3, wherein a separate fixing element is provided, which fixes a knife holder (1) onto a positioning bar (4.1a, 4.1b, 4.2a, 4.2b).

10. Positioning bar for the attachment of at least two knife holders (1) onto a traverse of a slitting machine, wherein the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) has at least two form-fit configurations (5.1, 5.2, 5.3), by means of which a knife holder (1) can in each case be attached at a position determined by the form-fit configuration (5.1, 5.2, 5.3).

11. Knife holder, in particular for a mounting kit according to claim 3, comprising at least: a housing (10), a knife head (11) for purposes of holding a circular knife (9), and a clamping device (7) for purposes of fixing the knife holder (1) to a slitting machine, characterised in that, the knife holder (1) has at least one form-fit formation for purposes of connection to a form-fit configuration (5.1, 5.2, 5.3) of a positioning bar (4.1a, 4.1b, 4.2a, 4.2b).

12. Knife holder according to claim 11, wherein the knife holder has, adjacent to the form-fit formation, a recess (12) for purposes of receiving the positioning bar (4.1a, 4.1b, 4.2a, 4.2b).

13. Slitting machine with: a traverse (8), a plurality of knife holders (1), which can be attached to the traverse (8) at a spacing (2) from one another, characterised in that, the slitting machine has at least one positioning bar (4.1a, 4.1b, 4.2a, 4.2b), wherein the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) has at least two form-fit configurations (5.1, 5.2, 5.3), by means of which a position of a knife holder (1) is determined, wherein adjacent form-fit configurations (5.1, 5.2, 5.3) on the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) determine the spacing (2) between adjacent knife holders (1), wherein the positioning bar (4.1a, 4.1b, 4.2a, 4.2b) can be positioned together with the knife holders (1) on the traverse (8), and can preferably be removed from the traverse (8) as a mounting unit (6.1, 6.2).

14. Slitting machine according to claim 13, wherein a positioning bar (4.1a, 4.2a) is arranged on a side of the knife holders (1) facing towards the traverse (8).

15. Slitting machine according to claim 13, wherein a positioning bar (4.1b, 4.2b) is arranged on a side of the knife holder (1) facing away from the traverse (8).

16. Slitting machine according to claim 13, wherein at least two mounting units (6.1, 6.2) are arranged on the traverse (8).

17. Slitting machine according to claim 16, wherein the positioning bars (4.1a, 4.1b, 4.2a, 4.2b) of adjacent mounting units (6.1, 6.2) abut against one another with their end faces.

Description

[0032] The invention and the technical background are explained in what follows, using the figures by way of example. Here:

[0033] FIG. 1: shows schematically a view in perspective of two mounting units arranged next to each other,

[0034] FIG. 2: shows schematically a view in perspective of the mounting units attached to a traverse,

[0035] FIG. 3: shows schematically a positioning bar of the mounting units,

[0036] FIG. 4: shows schematically a detailed view of a first form-fit configuration of the positioning bar,

[0037] FIG. 5: shows schematically a detailed view of a second form-fit configuration of the positioning bar, and

[0038] FIG. 6: shows schematically a side view of a mounting unit attached to a traverse.

[0039] FIG. 1 shows a view in perspective of a first pre-assembled mounting unit 6.1 and a second pre-assembled mounting unit 6.2.

[0040] The mounting units 6.1 and 6.2 in each case comprise three knife holders 1, which are arranged at a spacing 2 from one another. The first mounting unit 6.1 comprises a first positioning bar group 3.1, with the positioning bar 4.1a and the positioning bar 4.1b. The second mounting unit 6.2 comprises a second positioning bar group 3.2, with the positioning bars 4.2a and 4.2b.

[0041] In the state shown in FIG. 1 the mounting units 6.1 and 6.2 can be positioned on a traverse 8 of a slitting machine, and can be fixed to the traverse 8 by the tightening of clamping devices 7. The advantage here is that the spacing 2 between the knife holders 1 is determined by form-fit configurations on the positioning bars, which are explained in more detail below. Thus, a plurality of knife holders 1 can be fixed together to the traverse 8 with a spacing 2 that has already been previously determined. FIG. 2 shows the two mounting units 6.1 and 6.2 in a state in which they are attached to the traverse 8 of a slitting machine.

[0042] FIG. 3 shows the first positioning bar 4.1a, which has three form-fit configurations 5.1, 5.2 and 5.3. As a rule, all the form-fit configurations of a positioning bar have the same geometric configuration. In order to illustrate the different possibilities for the design of form-fit configurations, the three form-fit configurations 5.1 to 5.3 are configured differently in the example of embodiment of FIG. 3.

[0043] Thus the first form-fit configuration 5.1 shown in detail in FIG. 4 comprises two projections which arise transversely to the longitudinal extent of the positioning bar 4.1a. The knife holder, which is not shown in detail, has a recess designed as a form-fit configuration that corresponds with the outer peripheral configuration of the two projections, such that the two projections are received into the recess in a precise fit. To fix the knife holder 1 to the positioning bar 4.1a, a screw can be inserted through the hole shown in the first form-fit configuration 5.1 and screwed into a thread in the knife holder.

[0044] The second form-fit configuration 5.2 shown in detail in FIG. 5 comprises two elastically-deflectable projections, which can be inserted into a corresponding recess acting as a form-fit formation on a knife holder. When the projections are inserted into the recess, the projections are deflected towards each other and upon reaching the end position can snap back, such that a kind of snap-in or click-in connection is established between the knife holder and the positioning bar 4.1a.

[0045] The third form-fit configuration 5.3 is a simple rectangular projection that can be inserted into a corresponding recess in the knife holder 1.

[0046] The precise spacing 2 between two adjacent knife holders 1 attached to the positioning bar is thus determined by the spacing between adjacent form-fit configurations 5.1, 5.2 and 5.3 on the positioning bar.

[0047] In this manner, the knife holders can already be arranged at a desired spacing 2 from one another before they are attached to the traverse 8 of the slitting machine, wherein after they have been attached to the traverse 8, they only need to be fixed in place by an actuation of the clamping device 7.

[0048] FIG. 6 shows a side view onto a knife holder 1 of a mounting unit 6.2, in a state in which it is attached to the traverse 8. FIG. 6 shows in the first instance the configuration of the clamping device 7, which has a formation corresponding to that of the traverse 8, and by means of a fixing element can fix the knife holder 1 onto the traverse 8.

[0049] In addition, it can be seen that a housing 10 of the knife holder 1 has one recess 12 on the side facing towards the traverse 8, and another on the side facing away from the traverse 8, in which the positioning bars 4.2a and 4.2b are respectively arranged. The form-fit configurations of the positioning bars 4.2a, 4.2b, which are not visible in FIG. 6, engage in a form-fit formation in the form of a recess, which is designed in the knife holder 1 adjacent to the recess 12. Since the recesses 12 enable the positioning bars 4.2a, 4.2b not to protrude beyond the outer contour of the knife holder 1, a positioning bar 4.2a can also be arranged on the side facing towards the traverse 8, without any need to modify the traverse 8.

LIST OF REFERENCE SYMBOLS

[0050] 1 Knife holder [0051] 2 Spacing [0052] 3.1 First positioning bar group [0053] 3.2 Second positioning bar group [0054] 4.1a Positioning bar [0055] 4.1b Positioning bar [0056] 4.2a Positioning bar [0057] 4.2b Positioning bar [0058] 5.1 First form-fit configuration [0059] 5.2 Second form-fit configuration [0060] 5.3 Third form-fit configuration [0061] 6.1 First mounting unit [0062] 6.2 Second mounting unit [0063] 7 Clamping device [0064] 8 Traverse [0065] 9 Circular knife [0066] 10 Housing [0067] 11 Knife head [0068] 12 Recess