GB2458687A - Rotary perforator or cutter having anvil belt with resilient surface - Google Patents
Rotary perforator or cutter having anvil belt with resilient surface Download PDFInfo
- Publication number
- GB2458687A GB2458687A GB0805626A GB0805626A GB2458687A GB 2458687 A GB2458687 A GB 2458687A GB 0805626 A GB0805626 A GB 0805626A GB 0805626 A GB0805626 A GB 0805626A GB 2458687 A GB2458687 A GB 2458687A
- Authority
- GB
- United Kingdom
- Prior art keywords
- belt
- cylinder
- perforating
- resilient surface
- anvil
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/24—Perforating by needles or pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/20—Cutting beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/43—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about another axis, e.g. mounted on the surface of a cone or curved body
- B26D1/435—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about another axis, e.g. mounted on the surface of a cone or curved body for thin material, e.g. for sheets, strips or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
- B26F1/06—Perforating by punching, e.g. with relatively-reciprocating punch and bed with punching tools moving with the work
- B26F1/10—Roller type punches
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The unit has a rotating cylinder 2 with perforating edges 4, and an anvil belt 10 having a resilient surface. Material 20 passes between the cylinder 2 and the co-rotating belt 10. Each perforating edge 4 penetrates the material 20 and depresses the resilient surface of the belt 10. The belt 10 recovers as it rotates away from the cylinder 2. The belt's 10 resilient surface preferably comprises a polyurethane rubber. The belt 10 preferably rotates about rollers 11A, 11B. The rows of perforating edges 4 may form part of a cutting shim 3 mounted on a magnetic cylinder 2. The unit perforates paper.
Description
Title: Rotary Cutting Unit The present invention relates to rotary cutting unit, and especially a rotary cutting unit adapted to create perforations in a number of different materials such as paper.
When forming perforation in material such as paper it is common practice to pass material through a rotary cutting unit that fits within a rotary cutting station, with the station and unit forming a through cutting system. The unit has a cutting shim in the form of a sheet which is placed around a rotating magnetic cylinder, and an anvil roller which co-rotates with the cutting shim. The cutting shim has a number of perforating edges which pierce the material against the anvil roller to create the perforations in the material.
A problem with this is that the gap between the cutting shim and the anvil cylinder has to be kept to within a fine tolerance. If the gap is too large the perforations are not formed properly. If the gap is too small, the perforating edges wear against the anvil roller.
The invention seeks to provide a solution to this problem.
According to the present invention there is provided a rotary cutting unit for creating perforations in material comprising a first rotating cylinder with a plurality of perforating edges thereon and an anvil belt having a resilient surface adapted to co-rotate adjacent the first cylinder with material passing between the cylinder and the belt, in use the gap between the perforating edges and the belt is adjusted such that the each perforating edge penetrates the material and depresses the resilient surface of the belt as it enters the gap and the surface of the belt recovers as it rotates away from the cylinder.
The belt may have a polyurethane surface.
An embodiment of the invention will now be described with reference to the accompanying drawings in which: Figure I shows a schematic perspective view of a part of rotary cutting unit for perforating paper or other material, and Figure 2 shows a cross section view of a cutting shim on a magnetic cylinder and anvil belt.
Referring to Figures 1 and 2 there is shown schematically part of a rotary cutting unit I for perforating paper or other material.
Unit I has a first rotating roller having a magnetic roller 2 with a cutting shim 3 thereon in the form of a sheet which is placed around a rotating magnetic cylinder 2. Cutting shim 3 has a plurality of rows perforating edges 4 on its surface.
Unit I also has an anvil belt 10 having a resilient surface, e.g. with a polyurethane surface. Belt is supported to rotate around a main roller I IA and a take up roller 118. Belt 10 co-rotates adjacent the first magnetic cylinder 2 with cuffing shim 3 with paper or other material 20 passing between the magnetic roller 2 with cutting shim 3 and the belt 10.
In use the gap between the perforating edges 4 and the belt 10 is adjusted such that the each perforating edge penetrates the paper or other material being converted and makes a depression 12 in the resilient surface of the belt as it enters the gap (See Figure 2) and the surface of the belt recovers as it rotates away from the cylinder 2. The perforating edges create perforations 21 in the paper 20.
The belt 10 has a surface sufficiently hard to act as an anvil to allow the perforating edges to cut the perforation in the papers but not so hard as to wear the perforating edges.
The invention may take a form different to that specifically described above. For example instead of the anvil belt being supported between two rollers as shown, it could be in the form of a sleeve with a resilient surface around a single roller.
Further modifications will be apparent to those skilled in the art without departing from the scope of the present invention. a
Claims (4)
- CLAIMS1. A rotary cutting unit for creating perforations in material comprising a first rotating cylinder with a plurality of perforating edges thereon and an anvil belt having a resilient surface adapted to co-rotate adjacent the first cylinder with material passing between the cylinder and the belt, in use the gap between the perforating edges and the belt is adjusted such that the each perforating edge penetrates the material and depresses the resilient surface of the belt as it enters the gap and the surface of the belt recovers as it rotates away from the cylinder.
- 2. A rotary cutting unit according to claim I, wherein the belt has a polyurethane surface.
- 3. A rotary cutting unit according to claim I of 2, wherein the belt is supported to rotate around a main roller and a take up roller. S. S * SS * S.I*
- 4. A rotary cutting unit substantially as hereinbefore described with reference to and as shown in *:*::* the accompanying drawings.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0805626A GB2458687A (en) | 2008-03-28 | 2008-03-28 | Rotary perforator or cutter having anvil belt with resilient surface |
| PCT/EP2009/053308 WO2009118275A2 (en) | 2008-03-28 | 2009-03-20 | Device for spacing rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0805626A GB2458687A (en) | 2008-03-28 | 2008-03-28 | Rotary perforator or cutter having anvil belt with resilient surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0805626D0 GB0805626D0 (en) | 2008-04-30 |
| GB2458687A true GB2458687A (en) | 2009-09-30 |
Family
ID=39386895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0805626A Withdrawn GB2458687A (en) | 2008-03-28 | 2008-03-28 | Rotary perforator or cutter having anvil belt with resilient surface |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2458687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3181346A1 (en) | 2015-12-14 | 2017-06-21 | Habasit AG | Sheet material and punching tape containing same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB434378A (en) * | 1934-01-20 | 1935-08-30 | Karl Wahl | Improvements in or relating to apparatus for perforating kinematograph films |
| DE3137844A1 (en) * | 1981-09-23 | 1983-04-28 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Process for the production of short fibres |
| EP0468374A2 (en) * | 1990-07-26 | 1992-01-29 | Mitsubishi Jukogyo Kabushiki Kaisha | Rotary shear |
| US20010002564A1 (en) * | 1998-11-04 | 2001-06-07 | James Richard Belanger | Integrated knife assembly |
| US6925918B1 (en) * | 2003-08-14 | 2005-08-09 | Container Graphics Corporation | Scrap stripper for a rotary cutting device for cutting corrugated board |
-
2008
- 2008-03-28 GB GB0805626A patent/GB2458687A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB434378A (en) * | 1934-01-20 | 1935-08-30 | Karl Wahl | Improvements in or relating to apparatus for perforating kinematograph films |
| DE3137844A1 (en) * | 1981-09-23 | 1983-04-28 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Process for the production of short fibres |
| EP0468374A2 (en) * | 1990-07-26 | 1992-01-29 | Mitsubishi Jukogyo Kabushiki Kaisha | Rotary shear |
| US20010002564A1 (en) * | 1998-11-04 | 2001-06-07 | James Richard Belanger | Integrated knife assembly |
| US6925918B1 (en) * | 2003-08-14 | 2005-08-09 | Container Graphics Corporation | Scrap stripper for a rotary cutting device for cutting corrugated board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3181346A1 (en) | 2015-12-14 | 2017-06-21 | Habasit AG | Sheet material and punching tape containing same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0805626D0 (en) | 2008-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |