CA2346815A1 - Variable cross-cutting device - Google Patents
Variable cross-cutting device Download PDFInfo
- Publication number
- CA2346815A1 CA2346815A1 CA002346815A CA2346815A CA2346815A1 CA 2346815 A1 CA2346815 A1 CA 2346815A1 CA 002346815 A CA002346815 A CA 002346815A CA 2346815 A CA2346815 A CA 2346815A CA 2346815 A1 CA2346815 A1 CA 2346815A1
- Authority
- CA
- Canada
- Prior art keywords
- cutting
- cross
- counter
- cutting device
- cutting knife
- 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.)
- Abandoned
Links
Classifications
-
- 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
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
-
- 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
- B26D1/34—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 an axis parallel to the line of cut
- B26D1/40—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 an axis parallel to the line of cut and coacting with a rotary member
- B26D1/405—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 an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
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 invention relates to a cutting device, especially a cross-cutting device for continuous webs, comprising a transportation device (2) for the continuo us web, a cross-cutting knife (4) and a counter-pressure tool (3). The cross- cutting knife (4) is swordshaped and the counter-pressure tool (3) is a cylinder which interacts with the cross-cutting knife (4), or a counter- cutting rail. The counter-pressure cylinder or counter-cutting rail and the cross-cutting knife accommodate the continuous web between them.
Description
V,~riab:le Cros s--Cutting Device Translation of PC~'/EP99/06889 as amended on October 19, 2000 Description The invention concerns a cross-cutting device having the features of the pre-characterizing part of claim 1.
According to prior art, different length sections of continuous material or material sheets have been produced using formatted cylinders of different sizes having a certain number of knives disposed on the periphery of these formatted cylinders. It was thus possible to cut, with one cylinder having a circumference of 24" (inch), either one 24" length, two 12" lengths, three 8" lengths, four 6'° lengths or six 4"
lengths. The cross-perforation or cross-c~.ztting means were therefore dependent on the format of the mounted cylinder and also on the previously selected format, e.g. inch or mm.
Also known is the use of suitable motor power to accelerate or decelerate cross-cut~ing devices to produce sections of different length. EIowever, the variability of these cross-Gutters was inadequate since the motors required extremely high drive and delay power and were thereby inaccurate which CA-A1-2,176,282 discloses a cro;;s-cutting device on which the present invention i.s based. This; cross-cutting device is of very complicated cvonstx:uction and is therefore expensive.
The cross-cutting device in accordance w=ith the present invention according to the features of claim 1 is of relatively simple construction, :since the counter-pressure tool i:~ a simple cylinder or a. counter-cutting rail.
A variable cross-c.~utter in accordance with the invention which fulfils all the technical requirements and which is inexpensive to prc~duc:e, is deseri.bed below.
In detail, the cross-cutting device consists of the following components:
1. Unit frame / housing The frame structure of the cross-cutting device may be produced from various materials (aluminum, cast steel, steel, etc.). The construction details of this frame depend on the corresponding material sheet width, the diameter of the rollers and other factors. The frame merely serves to accommodate the elementa described below.
2. Feed rollers The feed roller pair must draw a material or material sheet into the unit and may either be directly mounted on and also driven by the cross-cutting means, may be separately mounted in front of it, ox~ may be part of an already existing component. This device should draw the material into the cross-cutting means at a constants or variable speed. A
register control may irufluence the feed station if registered accurate cross-cutting or perforation of printed material sheets is required.
3. Counter-pressure cylinder The counter-pressure cylinder serves as abutment for the cutting or perforating knife when the material sheet is cut.
It is usually a very precisely disposed counter-pressure cylinder which is either made from hardened steel or another hard material or provided with exchangeable hardened rails.
The surface speed or rotational speed of the counter-pressure cylinder is adjusted to the material sheet arid, if required, can be driven by an optional base machine.
Instead of the counter-pressure cylinder, a counter-cutting rail may be used for cooperating with the cross-cutting knife.
According to prior art, different length sections of continuous material or material sheets have been produced using formatted cylinders of different sizes having a certain number of knives disposed on the periphery of these formatted cylinders. It was thus possible to cut, with one cylinder having a circumference of 24" (inch), either one 24" length, two 12" lengths, three 8" lengths, four 6'° lengths or six 4"
lengths. The cross-perforation or cross-c~.ztting means were therefore dependent on the format of the mounted cylinder and also on the previously selected format, e.g. inch or mm.
Also known is the use of suitable motor power to accelerate or decelerate cross-cut~ing devices to produce sections of different length. EIowever, the variability of these cross-Gutters was inadequate since the motors required extremely high drive and delay power and were thereby inaccurate which CA-A1-2,176,282 discloses a cro;;s-cutting device on which the present invention i.s based. This; cross-cutting device is of very complicated cvonstx:uction and is therefore expensive.
The cross-cutting device in accordance w=ith the present invention according to the features of claim 1 is of relatively simple construction, :since the counter-pressure tool i:~ a simple cylinder or a. counter-cutting rail.
A variable cross-c.~utter in accordance with the invention which fulfils all the technical requirements and which is inexpensive to prc~duc:e, is deseri.bed below.
In detail, the cross-cutting device consists of the following components:
1. Unit frame / housing The frame structure of the cross-cutting device may be produced from various materials (aluminum, cast steel, steel, etc.). The construction details of this frame depend on the corresponding material sheet width, the diameter of the rollers and other factors. The frame merely serves to accommodate the elementa described below.
2. Feed rollers The feed roller pair must draw a material or material sheet into the unit and may either be directly mounted on and also driven by the cross-cutting means, may be separately mounted in front of it, ox~ may be part of an already existing component. This device should draw the material into the cross-cutting means at a constants or variable speed. A
register control may irufluence the feed station if registered accurate cross-cutting or perforation of printed material sheets is required.
3. Counter-pressure cylinder The counter-pressure cylinder serves as abutment for the cutting or perforating knife when the material sheet is cut.
It is usually a very precisely disposed counter-pressure cylinder which is either made from hardened steel or another hard material or provided with exchangeable hardened rails.
The surface speed or rotational speed of the counter-pressure cylinder is adjusted to the material sheet arid, if required, can be driven by an optional base machine.
Instead of the counter-pressure cylinder, a counter-cutting rail may be used for cooperating with the cross-cutting knife.
4. Cross-cutting rotor (cross-cutting knife?
lines of all kind:. In the preferred embodiment, cross-cutting knives arf: mounted using a quick-connect means. Other fastening means ar-e also possible. It is, however, important that this cross-c~itting rotor and the quick-connect rail permit rapid replacement of perforation lines and cutting knives. This reprE:sents a clear advantage over existing systems.
The cross-cutting rotor has its own electric-motor drive (servo motor? and comprises a con~ro7_ for controlling the rotational speed of the rotor. In the present embodiment, the rotor itself is px°ovided with on7_y one or a maximum of two knives. Other embodiments may also comprise more knives. Due to acceleration arcd delay with respect to the material sheet, different section lengths can be cut or perforated.
The cross-cutting rotor must only assume the speed of the material sheet within a range of ~10° about the cutting point. It may othErwise have a slower or faster circumferential speed compared to that of the material sheet, to produce the actual material sheet length.
As indicated in figure 1, the cross-cutting rotor has a particularly important special outer shape. In contrast to the previous round cutting cylinders, the cross-cutting rotor has a particularly favorable and suitable shape. This has several advantages. In particular, the large cross-cutting The second advantage i~: the fact that considerable mass is saved through omission of the remaining parts in regions differing from the normal circular shape.
Compared with othE~r structures, the special rotor shape advantageously has a high bending strength moment, while being light-weight. Moreover, in dependence on the structure width "X" , on the thickness of the material, and the insertion angle of the knife, the depth of insertion into the material sheet cari advantageously also be varied. The cutting rotor is thereby also suitable for cutting thick material sheets.
It is furthermore important that. the rotor has side flanks, either rounded as shown with 6, planar side flanks as shown with 7, or sharp ones as shown with 8.
Figure 2 shows an advantageous embodiment. of the cross-cutting rotor which includes yet one further substantial advantage. As is evident from Fig. 1, one can expect that operation of the rotor 'gill be associated with displacement of an amount of air which is substantially more than that displaced by a normal r:~und roller. The associated air resistance acts in opposition to the drive power. This effect is also unfavorable for further processing of material sheets or cut sheets and j~an be irritating for the staff. To transverse to its longitudinal axis. These transverse bores considerably reduc°.e the displacement of air. The introduction of these transverse bores has the substantial further advantage that the- mass is also considerably reduced.
lines of all kind:. In the preferred embodiment, cross-cutting knives arf: mounted using a quick-connect means. Other fastening means ar-e also possible. It is, however, important that this cross-c~itting rotor and the quick-connect rail permit rapid replacement of perforation lines and cutting knives. This reprE:sents a clear advantage over existing systems.
The cross-cutting rotor has its own electric-motor drive (servo motor? and comprises a con~ro7_ for controlling the rotational speed of the rotor. In the present embodiment, the rotor itself is px°ovided with on7_y one or a maximum of two knives. Other embodiments may also comprise more knives. Due to acceleration arcd delay with respect to the material sheet, different section lengths can be cut or perforated.
The cross-cutting rotor must only assume the speed of the material sheet within a range of ~10° about the cutting point. It may othErwise have a slower or faster circumferential speed compared to that of the material sheet, to produce the actual material sheet length.
As indicated in figure 1, the cross-cutting rotor has a particularly important special outer shape. In contrast to the previous round cutting cylinders, the cross-cutting rotor has a particularly favorable and suitable shape. This has several advantages. In particular, the large cross-cutting The second advantage i~: the fact that considerable mass is saved through omission of the remaining parts in regions differing from the normal circular shape.
Compared with othE~r structures, the special rotor shape advantageously has a high bending strength moment, while being light-weight. Moreover, in dependence on the structure width "X" , on the thickness of the material, and the insertion angle of the knife, the depth of insertion into the material sheet cari advantageously also be varied. The cutting rotor is thereby also suitable for cutting thick material sheets.
It is furthermore important that. the rotor has side flanks, either rounded as shown with 6, planar side flanks as shown with 7, or sharp ones as shown with 8.
Figure 2 shows an advantageous embodiment. of the cross-cutting rotor which includes yet one further substantial advantage. As is evident from Fig. 1, one can expect that operation of the rotor 'gill be associated with displacement of an amount of air which is substantially more than that displaced by a normal r:~und roller. The associated air resistance acts in opposition to the drive power. This effect is also unfavorable for further processing of material sheets or cut sheets and j~an be irritating for the staff. To transverse to its longitudinal axis. These transverse bores considerably reduc°.e the displacement of air. The introduction of these transverse bores has the substantial further advantage that the- mass is also considerably reduced.
Claims (7)
1. Cutting device, in particular cross-cutting device for continuous sheets, comprising a transportation device for the continuous sheet, a cross-cutting knife and a counter-pressure tool, wherein the cross-cutting knife has the shape of a sword, characterized in that the counter-pressure tool is a cylinder cooperating with the cross-cutting knife, or a counter-cutting rail, on which the continuous sheet seats and the continuous sheet is accommodated between the counter-pressure cylinder or the counter-cutting rail and the cross-cutting knife and a control device, in particular a servo motor, is provided for driving the cross-cutting knife which drives the cross-cutting device at a variable speed, wherein the cross-cutting knife has a plurality of holes, in particular transverse bores, extending transverse to the longitudinal axis.
2. Cutting device according to claim 1, characterized in that the counter-pressure cylinder or the counter-cutting rail can be height-adjusted but is rigidly positioned after adjustment.
3. Cutting device according to claim 1 or 2, characterized in that the counter-pressure cylinder is disposed in a rotary fashion.
4. Cutting device according to any one of the preceding claims, characterized by sensors for register markings provided on the continuous sheet.
5. Cutting device according to claim 4, characterized in that the control device can be controlled via the sensors.
6. Cutting device according to any one of the preceding claims, characterized in that the cross-cutting knife comprises a quick-connect means for mounting the cutting knife or perforation knife.
7. Cutting device according to any one of the preceding claims, characterized in that the cross-cutting knife is rounded or trapezoidal at its radially inward regions between the cutting edges or is provided with an edge.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19846864.4 | 1998-10-12 | ||
| DE19846864 | 1998-10-12 | ||
| PCT/EP1999/006889 WO2000021723A1 (en) | 1998-10-12 | 1999-09-17 | Variable cross-cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2346815A1 true CA2346815A1 (en) | 2000-04-20 |
Family
ID=7884128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002346815A Abandoned CA2346815A1 (en) | 1998-10-12 | 1999-09-17 | Variable cross-cutting device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1121227A1 (en) |
| CA (1) | CA2346815A1 (en) |
| WO (1) | WO2000021723A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006042331A1 (en) * | 2005-10-22 | 2007-05-03 | Neubauer, Kai, Dipl.-Ing. | Cutting knife for separation of web material, has peripheral arranged cutting edge wherein each cutting edge is arranged at distance to cylinder axis and in relative position intersecting with cylinder axis at an angle |
| DE102017109851A1 (en) | 2017-05-08 | 2018-11-08 | Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. | Device for manufacturing a cushioning product |
| DE102017109867A1 (en) | 2017-05-08 | 2018-11-08 | Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. | Apparatus for manufacturing a three-dimensional packaging product, such as a cushioning product, from a single or multi-ply paper web |
| DE102017109829A1 (en) | 2017-05-08 | 2018-11-08 | Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. | Device for providing packaging material |
| DE102017109842A1 (en) * | 2017-05-08 | 2018-11-08 | Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. | Apparatus and method for manufacturing a cushion pad from a single or multi-ply continuous paper web |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1074392B (en) * | 1960-01-28 | F L Smithe Machine Co In^ New York N Y (V St A) | I sheeter for paper or similar webs | |
| US2062737A (en) * | 1935-11-17 | 1936-12-01 | Clark Aiken Company | Paper cutting apparatus |
| US2310851A (en) * | 1940-11-07 | 1943-02-09 | Goodrich Co B F | Apparatus for making laminated strips |
| GB857920A (en) * | 1956-02-07 | 1961-01-04 | Kokuji Takehara | Apparatus for cutting fibre |
| US3068731A (en) * | 1956-04-06 | 1962-12-18 | Schultz Sales Corp | Shearing apparatus having rotary bearing means to predetermine the amount of overlap of rotary blades |
| CA991073A (en) * | 1972-03-07 | 1976-06-15 | Herve And Fils Papeteries Du Sentier (Societe Anonyme) | Device for cutting or perforating for continuous webs |
| US4130042A (en) * | 1977-07-25 | 1978-12-19 | Avery International Corporation | Adjustable anvil roll for die-cutting labels |
| IT1129514B (en) * | 1980-01-14 | 1986-06-04 | Colombo & Cremona Sas | IMPROVEMENTS TO THE ROTARY CUTTERS TO ADAPT THEM TO THE CUT OF SHEETS IN WOOD |
| US4355554A (en) * | 1980-10-10 | 1982-10-26 | Philip Morris Incorporated | Web sectioning apparatus including an interference indicator |
| JP2981405B2 (en) * | 1994-10-17 | 1999-11-22 | 旭マシナリー株式会社 | Rotary cutter |
| AU5843596A (en) * | 1995-12-18 | 1997-07-14 | Patrick Wathieu | Paper cutter for variable format |
| CA2176282C (en) * | 1996-05-10 | 2006-07-11 | Michael Surina | Rotary cutoff device |
-
1999
- 1999-09-17 EP EP99948773A patent/EP1121227A1/en not_active Withdrawn
- 1999-09-17 WO PCT/EP1999/006889 patent/WO2000021723A1/en not_active Application Discontinuation
- 1999-09-17 CA CA002346815A patent/CA2346815A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000021723A1 (en) | 2000-04-20 |
| EP1121227A1 (en) | 2001-08-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |