WO1999041047A1 - Dispositif de decorticage de flans de carton decoupes - Google Patents
Dispositif de decorticage de flans de carton decoupes Download PDFInfo
- Publication number
- WO1999041047A1 WO1999041047A1 PCT/FR1999/000295 FR9900295W WO9941047A1 WO 1999041047 A1 WO1999041047 A1 WO 1999041047A1 FR 9900295 W FR9900295 W FR 9900295W WO 9941047 A1 WO9941047 A1 WO 9941047A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elements
- base
- rotary
- sharp
- blank
- Prior art date
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
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1836—Means for removing cut-out material or waste by pulling out
Definitions
- the present invention relates to rotary cutting machines for cardboard blanks and more particularly relates to improvements to devices ensuring the shelling of cut blanks.
- this shelling module consists of two respective series of discs arranged opposite one above the other, between which the cut blank is admitted.
- One of this series of discs generally the lower discs, is provided with pins which, as before, pass through the shell to enter holes provided in the cutting cylinder, so that, during rotation, the shell is separated from the rest of the blank cut and driven by the pins, as described above.
- the combs must have an extremely fine anterior end which must imperatively be arranged as close as possible to the cylinder carrying the pins.
- the realization of such a module is therefore extremely delicate since, if the combs are too far from the cylinder or from the disc carrying the pins, it will cause a jam, and if these same combs are too close together there is a risk of damaging or damaging them. use which at the same time will decrease their effectiveness.
- Such means of extracting the shell can be used in rotary cutting devices with low rotational speed, but when it is desired to use machines with high throughput it is preferable to use combs as well as previously exposed. However, with such means making it possible to separate the shell from the surface of the cylinder, it is not possible to use combs since the large difference required by the width of the cylindrical base would be likely to cause jams.
- the object of the present invention is to remedy these drawbacks by proposing a dehulling device comprising pins whose constitution is such that it is no longer necessary, to avoid jams, for the front edge of the combs to be fine and for '' it is arranged near the cylinder or disc.
- the present invention thus relates to a device for rotary cutting of blanks of cardboard between two cylinders, at least one of which is a cutting cylinder, of the type comprising shelling means made up of gripping elements arranged on rotary elements, between which the sheet is entrained and which comprise a sharp zone intended to penetrate into the shell of the cut blank in order to, during its rotation, to separate it from the rest of the blank, the gripping elements comprising a base of larger cross section than the sharp area that extends beyond the outer surface of 4
- rotary elements of a value at least equal to the thickness of the blank, so that after the penetration of the sharp zone into the shell the latter is pressed against the base, characterized in that the dimension of the the base in the direction of the axis of rotation of the rotary elements is equal to that of the sharp zone.
- the teeth of the combs intended to extract the shells from the gripping elements can come as close as possible to the latter, thus avoiding any risk of jamming.
- the rotary elements consist of discs and the sharp zones of the gripping elements are formed from planar elements which are fixed on the base faces thereof. These gripping elements can also be fixed against a lateral face of a circular shoulder of the discs.
- the gripping elements consist of a threaded cylindrical part which is surmounted by a flat itself surmounted by a point constituting the sharp zone and it comprises a lock nut of fixing, the threaded part being intended to be screwed into a threaded hole of the rotary element and to be locked on the latter in a position such that the base of the point is at a distance from the external surface of the cylinder equal to at least once the thickness of the blank.
- the part of the gripping element between the base and the base of the sharp zone forms a flat whose width, (or dimension in the direction of the axis of rotation of the gripping elements), is equal to that of the sharp area.
- the device according to the present invention thus makes it possible to separate the shell from the rotary element carrying the gripping elements, which facilitates the introduction of the comb between these two elements. Under these conditions, on the one hand, it is easier to produce the means for separating the shell and, on the other hand, jams are avoided.
- Figures la and lb are schematic views of two shelling means implemented according to the prior art.
- Figure le is a partial plan view of a comb.
- Figure 1d is a sectional view of the comb shown in the figure along the line Id-Id thereof.
- Figure 2 is a schematic front view of a separate shelling device.
- FIG. 3 is a partial side view on a larger scale of the dehulling device shown in FIG. 2. 6
- FIG. 4 is a sectional view along line IV-IV of the device shown in FIG. 3.
- Figure 5 is a side view in partial section of a device according to the invention, during extraction by combs, a shell held by gripping elements.
- Figure 6 is a front view of two cylinders, one of which is provided with removable and adjustable gripping elements according to a second embodiment of the invention.
- FIG. 7 is a view in partial radial section on a larger scale of the second embodiment shown in FIG. 6.
- Figure 7a is a top view of the device shown in Figure 7, the upper comb being shown in dotted lines.
- Figure 7b is a radial sectional view of the device shown in Figure 7 along line VHb-VIIb thereof.
- a rotary cutting device for cardboard blanks which essentially comprises two cylinders, namely an upper cylinder 1, called cutting cylinder, that is to say a cylinder which comprises the threads ensuring the cutting of cardboard, and a lower cylinder 3, said counterpart cylinder, which is smooth, between which is driven a blank of cardboard to be cut 5.
- this device is provided with integrated shelling means. These means consist of gripping elements, such as points 7, which protrude from the external surface of the counterpart cylinder 3, and complementary cavities 9 provided in the cutting cylinder 1, which are intended to accommodate the points 7.
- the device also comprises combs 11 (FIGS. 1a and 1d) which have longitudinal slots 13 which are intended for the passage of the tips 7.
- the blank to be cut 5 is driven in the direction of arrow F between the two cylinders 1 and 3 which carry out the cutting operation. As soon as this has been carried out, the tips 7 penetrate into the shell 5a and drive it downwards, while the rest 5b of the cut blank continues on its way.
- the comb 11 is arranged in such a way that it extracts the peel off of the tips 7.
- separate shelling means 4 may consist of two cylinders, lower 3 'and upper 1' or a series of discs, which are respectively arranged in opposite each other. The operation of such a device is identical to that of the integrated means described above. 8
- the present invention will be described below in the context of a separate shelling device, but it can of course also be implemented in any type of shelling and in particular in integrated cutting devices.
- the separate shelling device shown schematically in Figures 2 to 4 essentially consists of a frame 12 which supports a lower shaft 14 and an upper shaft 14 '. These shafts support respective lower 16 and upper 16 ′ discs, which drive between them a cut blank 5 coming from cutting means not shown.
- the lower discs 16, as shown in FIGS. 3 and 4 are hollowed out on each of their faces with a circular groove 21, so as to form a circular shoulder 18.
- the opposite lateral flanks 20 of this shoulder 18 serve as a support to gripping elements 22 provided with sharp parts 23 intended to penetrate into the shell 5a and to drive it so as to separate it from the rest 5b of the blank 5.
- the gripping elements 22 consist of a steel plate which is applied to a side blank 20 of the circular shoulder 18 by a screw 28 which passes through a light in an arc 26 of the plate, light centered on the axis of the rotary element 16, to be screwed into threaded holes 30 of the sidewall 20, with the interposition of a tightening washer 32.
- the lower part of the plate 22 is V-shaped 9
- the upper part of the plate, or base 27 protrudes from the face external of the circular shoulder 18 with a value d of the order of a few millimeters, for example 3 millimeters.
- the base 27 is extended outwards by the sharp part 23 which is in the form of a knife, the faces of which are sharpened in order to improve its penetration into the shell 5a.
- the threaded holes 30 are provided with angular spacings such that, taking into account the angular difference of the window 26, it is possible to angularly position the sharp part 23 at any point on the periphery of the disc 16.
- the sharp part 23 will preferably be arranged on one side of the base which will allow, by turning face to face of the wafer to obtain two angular positioning zones of the sharp part 23.
- the device comprises combs 11 which are arranged near the outer periphery of one circular shoulder 18 so that the slots 13 with which they are provided allow the passage of the sharp parts 23 of the plates 22 and of their base 27.
- the width has slots 13 of the combs 11 will be 10
- the cardboard blank 5 once cut engages between the discs 16 and 16 'and the sharp parts 23 of the plates 22 penetrate into the shell 5a and ensure the gripping thereof, tearing the latter from the rest of the cut blank 5b.
- the shell 5a is then driven downwards, as shown in FIGS. 1a and 5, and it is pressed not against the external face of the shoulder 18 of the disc 16 but against the base 27 of the plates 22. There are under these conditions, a space between the external surface of the circular shoulder 18 and the internal face of the shell 5a. As shown in Figure 5 this space allows easy introduction of the comb 11 between these two elements.
- the value whose base exceeds the external face of the discs 16 may vary depending on the different types of application. It will generally be greater than the thickness of the blank 5.
- the gripping elements 22 may be constituted by any device other than 11
- each gripping element 22 ′ is formed by a threaded part 36 which has at its upper part a flat 38 which is itself even surmounted by a cylindrical element 37 of the same diameter as the thickness of the flat and which ends at its upper part with a point 40.
- the threaded part 36 is screwed into the threaded hole 34 so that the base 27 'is located at the desired distance d from the external surface of the cylinder 31 and the flat 38 is oriented parallel to the axis of the cylinder 31.
- the threaded part 36 is held in position by a lock nut 39.
- the upper face 27 'of the flat 38 thus constitutes a base which is intended to receive the underside of the shell 5a and thus to move it away from the external surface of the cylinder, 12
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Details Of Cutting Devices (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69902005T DE69902005T2 (de) | 1998-02-10 | 1999-02-10 | Abfallausbrechvorrichtung für gestanzte kartonagen |
EP99903731A EP1054759B1 (fr) | 1998-02-10 | 1999-02-10 | Dispositif de decorticage de flans de carton decoupes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR98/01532 | 1998-02-10 | ||
FR9801532A FR2774628B1 (fr) | 1998-02-10 | 1998-02-10 | Dispositif de decorticage de flans de carton decoupes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999041047A1 true WO1999041047A1 (fr) | 1999-08-19 |
Family
ID=9522776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/000295 WO1999041047A1 (fr) | 1998-02-10 | 1999-02-10 | Dispositif de decorticage de flans de carton decoupes |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1054759B1 (fr) |
DE (1) | DE69902005T2 (fr) |
FR (1) | FR2774628B1 (fr) |
WO (1) | WO1999041047A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014135276A1 (fr) * | 2013-03-08 | 2014-09-12 | Bobst Mex Sa | Agencement de découpe et d'éjection des déchets, cassette, unité et machine ainsi équipée |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2888860A (en) * | 1955-01-27 | 1959-06-02 | Baumgartner John Robert | Blank forming apparatus |
CH386228A (fr) * | 1963-01-23 | 1964-12-31 | Bobst Fils Sa J | Dispositif pour l'éjection de déchets découpés dans des feuilles de papier ou de carton |
FR1421179A (fr) * | 1964-01-28 | 1965-12-10 | Kirby S Engineers Ltd | Perfectionnements aux appareils rotatifs à découper le carton et matières en feuilles analogues |
EP0493229A1 (fr) * | 1990-12-26 | 1992-07-01 | A T N | Dispositif de décorticage d'une nappe de carton ou matériau similaire |
US5181444A (en) * | 1991-09-23 | 1993-01-26 | International Paper Company | Multiple barb pick |
US5365815A (en) * | 1993-01-12 | 1994-11-22 | Pfaff Jr Alan R | Rotary scrap stripper |
-
1998
- 1998-02-10 FR FR9801532A patent/FR2774628B1/fr not_active Expired - Fee Related
-
1999
- 1999-02-10 EP EP99903731A patent/EP1054759B1/fr not_active Expired - Lifetime
- 1999-02-10 DE DE69902005T patent/DE69902005T2/de not_active Expired - Fee Related
- 1999-02-10 WO PCT/FR1999/000295 patent/WO1999041047A1/fr active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2888860A (en) * | 1955-01-27 | 1959-06-02 | Baumgartner John Robert | Blank forming apparatus |
CH386228A (fr) * | 1963-01-23 | 1964-12-31 | Bobst Fils Sa J | Dispositif pour l'éjection de déchets découpés dans des feuilles de papier ou de carton |
FR1421179A (fr) * | 1964-01-28 | 1965-12-10 | Kirby S Engineers Ltd | Perfectionnements aux appareils rotatifs à découper le carton et matières en feuilles analogues |
EP0493229A1 (fr) * | 1990-12-26 | 1992-07-01 | A T N | Dispositif de décorticage d'une nappe de carton ou matériau similaire |
US5181444A (en) * | 1991-09-23 | 1993-01-26 | International Paper Company | Multiple barb pick |
US5365815A (en) * | 1993-01-12 | 1994-11-22 | Pfaff Jr Alan R | Rotary scrap stripper |
Also Published As
Publication number | Publication date |
---|---|
DE69902005T2 (de) | 2003-03-20 |
DE69902005D1 (de) | 2002-08-08 |
EP1054759A1 (fr) | 2000-11-29 |
FR2774628B1 (fr) | 2000-04-07 |
EP1054759B1 (fr) | 2002-07-03 |
FR2774628A1 (fr) | 1999-08-13 |
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