EP4486552B1 - Vorrichtung zum montieren eines schneidunterstützungselements auf einer latte einer schneidmaschine mit einem förderer - Google Patents

Vorrichtung zum montieren eines schneidunterstützungselements auf einer latte einer schneidmaschine mit einem förderer

Info

Publication number
EP4486552B1
EP4486552B1 EP23725270.5A EP23725270A EP4486552B1 EP 4486552 B1 EP4486552 B1 EP 4486552B1 EP 23725270 A EP23725270 A EP 23725270A EP 4486552 B1 EP4486552 B1 EP 4486552B1
Authority
EP
European Patent Office
Prior art keywords
cutting support
lateral end
modular
support element
baseplate
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.)
Active
Application number
EP23725270.5A
Other languages
English (en)
French (fr)
Other versions
EP4486552A1 (de
Inventor
Régis LALLEMENT
Didier Chabirand
Quentin COSSON-COCHE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lectra SA
Original Assignee
Lectra SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lectra SA filed Critical Lectra SA
Publication of EP4486552A1 publication Critical patent/EP4486552A1/de
Application granted granted Critical
Publication of EP4486552B1 publication Critical patent/EP4486552B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • 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
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
    • 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
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/086—Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
    • 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

Definitions

  • the present invention relates to the general field of suction-feed cutting supports for automatic sheet material cutting machines, particularly for textile materials, using a vibrating blade that penetrates the cutting support. More specifically, it relates to a device for assembling such a cutting support element onto a slat of a conveyor-type cutting machine.
  • One area of application of the invention is the automatic cutting of stacks or mattresses of sheet materials, in particular textile materials, using a vibrating blade penetrating a suction cutting support.
  • a vibrating blade cutting machine includes a cutting conveyor that carries the stack of sheets during the cutting operation. This cutting conveyor is housed in a chamber where a strong vacuum is created to hold the sheets of material to be cut in place during the cutting process.
  • the cutting conveyor also serves as a penetrating cutting support for the vibrating blade.
  • the cutting support is designed to be penetrable by the blade so that during the cutting operation, the blade can not only completely penetrate the material to be cut, but also extend downwards beyond the support surface and into the material bed, thus providing such a surface.
  • the cutting support typically consists of an assembly of blocks mounted on cutting support slats, which are themselves installed in the conveyor and driven by a belt. More specifically, each block comprises a number of bristles mounted on a base in several parallel rows, each bristle having a head that forms the support for the sheet material to be cut. Transverse channels are cut through the base to allow the passage of suction air. These blocks thus support the material to be cut under suction while still allowing penetration by the cutting blade.
  • cutting supports made by mounting a plurality of modular comb elements onto cutting support slats have been developed.
  • Reference may be made, in particular, to the publication WO 2021/191522 This describes an example of modular comb components comprising a plurality of bristles arranged along a single line. This allows at least some bristles to have a head with a straight cross-section encompassing a straight cross-section of the shaft, while still allowing these modular components to be manufactured by molding in a single piece, including their base and bristles. This geometric shape of the bristles thus has the advantage of limiting interactions between the cutting blade tip and the bristles in tangency.
  • the modular comb blocks or elements are generally assembled onto the cutting support slats by means of hook-shaped fasteners which fit into grooves formed in the slats.
  • the present invention therefore aims to provide a device for assembling a modular cutting support element onto a cutting support slat which does not present the aforementioned disadvantages.
  • the device according to the invention is remarkable in that the vertical retention of the modular cutting support element (namely, the cutting support pad or modular comb element) is achieved magnetically.
  • the modular cutting support element namely, the cutting support pad or modular comb element
  • this device allows for the removal of a modular cutting support element without having to first remove the cutting support slat, as the modular cutting support element is held in position on the slat solely by magnetism and a hook.
  • the cutting support slat includes at one lateral end a hook and the base of the modular support element of The cutting unit includes at a first lateral end a hook suitable for cooperating with the hook of the cutting support slat to ensure the lateral and vertical retention of the modular cutting support element on the cutting support slat.
  • the first lateral end of the device allows the modular cutting support element to be held laterally and vertically on the slat and opposes the forces that the modular cutting support element undergoes during all phases of operation.
  • the device also includes means for laterally holding a second lateral end of the base of the modular cutting support element against a second lateral end of the cutting support slat.
  • the second lateral end of the base of the modular cutting support element may include a projecting lug and the second lateral end of the support slat may include a projecting stop suitable for cooperating with the lug of the base of the modular cutting support element so as to allow lateral support of the second lateral end of the base of the modular cutting support element against the second lateral end of the cutting support slat.
  • the second lateral end of the base of the modular cutting support element may include a recessed notch and the second lateral end of the support slat may include a projecting stop suitable for cooperating with the notch in the base of the modular cutting support element so as to permit lateral retention of the second lateral end of the base of the modular cutting support element against the second lateral end of the cutting support slat.
  • the base of the modular cutting support element includes a magnet positioned at least at its second lateral end
  • the cutting support slat includes a metal insert positioned at least at its second lateral end so as to allow for retention vertical by magnetism of the second lateral end of the base of the modular cutting support element on the second lateral end of the cutting support slat.
  • the magnet on the base of the modular cutting support element can be common for a plurality of adjacent modular cutting support elements.
  • the magnet can extend between the two lateral ends of the modular cutting support element and be equipped with holes for air passage.
  • the base of the modular cutting support element includes a metal insert positioned at least at its second lateral end and the cutting support slat includes a magnet positioned at least at its second lateral end so as to allow vertical magnetic holding of the second lateral end of the base of the modular cutting support element on the second lateral end of the cutting support slat.
  • the first lateral end of the cutting support slat corresponds to an upstream end with respect to the direction of advance of the cutting machine conveyor.
  • the first lateral end of the base of the modular cutting support element also includes contactless identification means.
  • the modular cutting support element can be a modular comb element or a cutting support pad.
  • the present invention relates to cutting supports for a suction-feed cutting conveyor of an automatic sheet material cutting machine.
  • a cutting conveyor is used to move the stack of sheets during the cutting operation.
  • This cutting conveyor is usually housed in a box inside which a strong vacuum is created to hold the sheets of material to be cut in place during the cutting operation.
  • the cutting conveyor serves as a penetrating cutting support for the vibrating blade. It is indeed necessary to make the cutting support penetrable to the blade so that during the cutting operation, the blade can not only completely pass through the material to be cut, but also extend downwards beyond the support surface and into the material bed providing such a surface.
  • the cutting conveyor generally comprises a plurality of cutting supports 2-1, each consisting of a cutting support block 4-1 which is mounted on a cutting support slat 6-1, the latter being itself installed in the conveyor and driven by a belt.
  • the 6-1 cutting support pad can be replaced by a unit comb element as described in detail in the patent application WO 2021/191522 the content of which is incorporated here by way of reference.
  • each cutting support block 4-1 (or unit element of the comb) comprises a plurality of bristles 8, each having a foot 8a mounted on a sole 10-1 in one or more parallel rows of bristles, and a head 8b opposite the foot on which the sheet material to be cut rests.
  • the sole 10-1 is provided with perforations (not shown in the figures) allowing the passage of suction air.
  • each cutting support block 4-1 (or unit element of comb) is assembled on a cutting support slat 6-1, at a first lateral end by mechanical means of lateral and vertical retention, and at a second lateral end (opposite to the first end), on the one hand by means of vertical retention by magnetism and, on the other hand, by mechanical means of lateral retention.
  • the first lateral end of the cutting support blocks 6-1 corresponds to their upstream end with respect to the direction of advance F of the cutting machine conveyor, and the second lateral end corresponds to their downstream end (still in the direction of advance F of the conveyor).
  • the mechanical means for lateral and vertical retention at the level of the first lateral end of the cutting support blocks 6-1 are formed by cooperation between complementary hooks.
  • first lateral end 6a of the cutting support slat 6-1 is provided with a hook 12 at its upper face which is open downstream (relative to the direction of advance F of the conveyor).
  • the 4-1 cutting support block (or the comb unit element) is equipped, at the underside of the first end lateral 10a of its sole 10-1, of a hook 14 which is open upstream and which cooperates with the hook 12 of the cutting support slat to ensure mechanical support of the cutting support block both laterally and vertically.
  • the vertical retention of the cutting support block is achieved by magnetism.
  • this magnetic retention is achieved by means of, on the one hand, a metal insert 16 which is positioned at the level of (or even integrated into) the lower face of the second lateral end 10b of the sole 10-1 of the cutting support pad (or of the unit element of the comb), and on the other hand, a magnet 18 which is positioned at the level of (or even integrated into) the upper face of the second lateral end 6a of the support slat 6-1.
  • the magnet 18 and the metal insert 16 cooperate with each other by magnetism to allow vertical retention of the cutting support pad (or the unit element of the comb) on the cutting support slat at the level of their respective second lateral end.
  • the metal insert does not necessarily extend over its entire length (it may only cover part of the length of the cutting support block).
  • the lateral support of the cutting support block 4-1 on the cutting support slat 6-1 is achieved by mechanical means.
  • the second lateral end 10b of the sole 10-1 of the cutting support block 4-1 includes a lug 20 which projects inwards
  • the second lateral end 6b of the support slat 6-1 includes a stop 22 which projects outwards and which is adapted to cooperate with the lug 20 of the sole of the support block. cut in such a way as to allow lateral mechanical support of the cutting support block against the cutting support slat at the level of their respective second lateral end.
  • This embodiment differs from the one previously described by the means of vertically maintaining by magnetism the second lateral end 10b' of the sole 10-2 of the cutting support block 4-2 (or of the unit element of the comb) on the second lateral end 6b' of the cutting support slat 6-2.
  • the magnetic retention is achieved by means of, on the one hand, a metallic insert 16' which is positioned at the level of (or even integrated into) the lower face of the second lateral end 6a' of the support slat 6-2, and on the other hand, a magnet 18' which is positioned at the level of (or even integrated into) the upper face of the second lateral end 10b' of the base 10-2 of the cutting support block (or of the unit element of the comb).
  • the magnet 18' can extend between the two lateral ends 10b' of the base 10-2 of the cutting support block (or the comb unit element).
  • the magnet will also be provided with holes to allow the passage of suction air.
  • This embodiment differs from the two previous ones by the means of lateral retention of the cutting support block 4-3 on the cutting support slat 6-3 at the level of their respective second lateral end.
  • the second lateral end 10b" of the base 10-3 of the cutting support block 4-3 (or of the unit element of comb) includes a notch 24 on its inner face which is recessed and the second lateral end 6b" of the support slat 6-3 includes a stop 26 which is projecting outwards and which is able to cooperate with the notch 24 of the base of the cutting support pad so as to allow lateral retention of the cutting support pad against the cutting support slat at their respective second lateral ends.
  • the means for vertically retaining, by magnetism, the second lateral end 10b" of the base 10-3 of the cutting support block 4-3 (or the unit element of the comb) on the second lateral end 6b" of the cutting support slat 6-3 can be similar to those described in connection with the figure 1 (and as depicted on the figure 3 ) or, alternatively, be similar to those described in connection with the figure 2 .
  • the vertical holding by magnetism of the sole 10-4 of the cutting support block 4-4 (or of the unit element of the comb) on the cutting support slat 6-4 is achieved in particular by a magnet 28 which is positioned at the level of (or even integrated into) the lower face of the sole of the cutting support block (or of the unit element of the comb) over its entire width (i.e. between its two lateral ends).
  • a metal insert 30 is positioned at the level of (or even integrated into) the upper face of the support slat 6-4 over its entire width (i.e. between its two lateral ends).
  • the magnet 28 and the metal insert cooperate with each other by magnetism to ensure that the cutting support pad 4-4 (or the unit element of the comb) is held on the cutting support slat 6-4.
  • the magnet 28 of the base of the cutting support pad 4-4 (or of the unit element of the comb) is provided with holes (not shown in the figure) to allow the passage of suction air.
  • the assembly device is devoid of a hook at the first lateral end of the cutting support block 4-4 (or the unit element of the comb) and the cutting support slat 6-4.
  • the assembly device of this embodiment lacks mechanical means to ensure lateral support of a second lateral end of the base of the cutting support block (or the unit element of the comb) against a second lateral end of the cutting support slat.
  • the sole magnetic force of attraction of the magnet 38 makes it possible to ensure this lateral support function in addition to the vertical support.
  • the base 10-5 of the cutting support block 4-5 (or of the unit element of the comb) includes, between its two lateral ends, a finger 32 projecting inwards and adapted to fit into a notch 34 formed in the cutting support slat 6-5 so as to ensure a translational stop of the cutting support block (or of the unit element of the comb).
  • the first lateral end 10b, 10b', 10b" of the sole 10-1 to 10-5 of the cutting support pad 4-1 to 4-5 advantageously includes contactless identification means.
  • these means may be an RFID tag allowing individual or batch identification of the cutting support pad (or the cutting support unit element, as applicable).
  • the base 10-1 to 10-5 of the cutting support block 4-1 to 4-5 (or of the unit element of the comb) is provided with holes to allow the passage of suction air, so that it is necessary that the upper face of the cutting support slat 6-1 to 6-5, the metal insert and the magnet used to ensure magnetic retention are also provided with holes for the passage of suction air (or that they are arranged to allow this passage of air).

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Details Of Cutting Devices (AREA)

Claims (12)

  1. Vorrichtung (2-1 bis 2-5) zum Zusammenbauen eines modularen Schnittstützelements an einer Schnittstützleiste einer Schneidemaschine zum Schneiden mit Förderer zum Zuschneiden von blattförmigen Materialien, umfassend:
    - eine Schnittstützleiste (6-1 bis 6-5), die dazu bestimmt ist, fest mit einem Förderer der Schneidemaschine verbunden zu werden,
    - mindestens ein modulares Schnittstützelement (4-1 bis 4-5), umfassend eine Vielzahl von Borsten (8), die jeweils einen Fuß (8a), der fest mit einer Sohle (10-1 bis 10-5) verbunden ist, und en und einen Kopf (8b) gegenüber dem Fuß aufweisen, auf dem ein zu schneidendes blattförmiges Material aufliegen soll, und
    - Einrichtungen (16, 18; 16', 18') zum vertikalen Halten durch Magnetismus mindestens eines Abschnitts der Sohle des modularen Schnittstützelements an mindestens einem Abschnitt der Schnittstützleiste.
  2. Vorrichtung nach Anspruch 1, wobei die Schnittstützleiste an einem ersten seitlichen Ende (6a; 6a'; 6a") einen Haken (12) umfasst und die Sohle des modularen Schnittstützelements an einem ersten seitlichen Ende (10a; 10a'; 10a") einen Haken (14) umfasst, der geeignet ist, um mit dem Haken der Schnittstützleiste zusammenzuwirken, um das seitliche und vertikale Halten des modularen Schnittstützelements an der Schnittstützleiste zu gewährleisten.
  3. Vorrichtung nach Anspruch 2, ferner umfassend Einrichtungen (20, 22; 24, 26) zum seitlichen Halten eines zweiten seitlichen Endes der Sohle des modularen Schnittstützelements gegen ein zweites seitliches Ende der Schnittstützleiste.
  4. Vorrichtung nach Anspruch 3, wobei das zweite seitliche Ende (10b) der Sohle (10-1) des modularen Schnittstützelements (4-1) einen hervorstehenden Zapfen (20) umfasst und das zweite seitliche Ende (6b) der Stützleiste (6-1) einen hervorstehenden Anschlag (22) umfasst, der geeignet ist, um mit dem Zapfen der Sohle des modularen Schnittstützelements zusammenzuwirken, um ein seitliches Halten des zweiten seitlichen Endes der Sohle des modularen Schnittstützelements gegen das zweite seitliche Ende der Schnittstützleiste zu ermöglichen.
  5. Vorrichtung nach Anspruch 3, wobei das zweite seitliche Ende (10b") der Sohle (10-3) des modularen Schnittstützelementes (4-3) eine vertiefte Kerbe (24) umfasst und das zweite seitliche Ende (6b") der Stützleiste (6-3) einen hervorstehenden Anschlag (26) umfasst, der geeignet ist, um mit der Kerbe in der Sohle des modularen Schnittstützelementes zusammenzuwirken, um ein seitliches Halten des zweiten seitlichen Endes der Sohle des modularen Schnittstützelements gegen das zweite seitliche Ende der Schnittstützleiste zu ermöglichen.
  6. Vorrichtung nach einem der Ansprüche 2 bis 5, wobei die Sohle (10-2) des modularen Schnittstützelements (4-2) einen Magneten (16') umfasst, der zumindest an einem zweiten seitlichen Ende (10b') positioniert ist, und die Schnittstützleiste (6-2) einen Metalleinsatz (18') umfasst, der zumindest an einem zweiten seitlichen Ende (6b') positioniert ist, um ein vertikales Halten durch Magnetismus des zweiten seitlichen Endes der Sohle des modularen Schnittstützelements an dem zweiten seitlichen Ende der Schnittstützleiste zu ermöglichen.
  7. Vorrichtung nach Anspruch 6, wobei der Magnet der Sohle des modularen Schnittstützelements für eine Vielzahl von benachbarten modularen Schnittstützelementen gemeinsam ist.
  8. Vorrichtung nach einem der Ansprüche 6 und 7, wobei sich der Magnet zwischen den zwei seitlichen Enden des modularen Schnittstützelements erstreckt und mit Bohrungen für den Luftdurchgang versehen ist.
  9. Vorrichtung nach einem der Ansprüche 2 bis 5, wobei die Sohle (10-1) des modularen Schnittstützelements (4-1) einen Metalleinsatz (18) umfasst, der zumindest an einem zweiten seitlichen Ende (10b) positioniert ist, und die Schnittstützleiste (6-1) einen Magneten (16) umfasst, der zumindest an einem zweiten seitlichen Ende (6b) positioniert ist, um ein vertikales Halten durch Magnetismus des zweiten seitlichen Endes der Sohle des modularen Schnittstützelements an dem zweiten seitlichen Ende der Schnittstützleiste zu ermöglichen.
  10. Vorrichtung nach einem der Ansprüche 2 bis 9, wobei das erste seitliche Ende der Schnittstützleiste einem stromaufwärtigen Ende in Bezug auf die Vorlaufrichtung (F) des Förderers der Schneidemaschine entspricht.
  11. Vorrichtung nach einem der Ansprüche 2 bis 10, wobei das erste seitliche Ende der Sohle des modularen Schnittstützelements ferner eine berührungslose Identifizierungseinrichtung umfasst.
  12. Vorrichtung nach einem der Ansprüche 1 bis 11, wobei das modulare Schnittstützelement ein modulares Kammelement oder ein Schnittstützstein ist.
EP23725270.5A 2022-04-07 2023-04-04 Vorrichtung zum montieren eines schneidunterstützungselements auf einer latte einer schneidmaschine mit einem förderer Active EP4486552B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2203213A FR3134328B1 (fr) 2022-04-07 2022-04-07 dispositif d’assemblage d’un élément de support de coupe sur une latte d’une machine de coupe à convoyeur
PCT/FR2023/050485 WO2023194686A1 (fr) 2022-04-07 2023-04-04 Dispositif d'assemblage d'un élément de support de coupe sur une latte d'une machine de coupe a convoyeur

Publications (2)

Publication Number Publication Date
EP4486552A1 EP4486552A1 (de) 2025-01-08
EP4486552B1 true EP4486552B1 (de) 2026-02-18

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EP23725270.5A Active EP4486552B1 (de) 2022-04-07 2023-04-04 Vorrichtung zum montieren eines schneidunterstützungselements auf einer latte einer schneidmaschine mit einem förderer

Country Status (8)

Country Link
US (1) US20250214272A1 (de)
EP (1) EP4486552B1 (de)
JP (1) JP2025511785A (de)
KR (1) KR20240170952A (de)
CN (1) CN118900754A (de)
FR (1) FR3134328B1 (de)
MX (1) MX2024011641A (de)
WO (1) WO2023194686A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3155219B1 (fr) * 2023-11-10 2025-11-07 Lectra Convoyeur de coupe à aspiration à pavés souples pour machine de coupe automatique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118194A1 (de) * 1991-06-03 1993-02-11 Bullmer Spezialmaschinen Gmbh Zuschneidevorrichtung fuer flachmaterial wie stoffe, folien oder dergleichen
FR3108547B1 (fr) 2020-03-27 2022-04-01 Lectra Elément modulaire de support de coupe à aspiration d’une machine de coupe automatique de matériaux en feuilles
FR3111836B1 (fr) * 2020-06-24 2022-07-08 Lectra Convoyeur de coupe à aspiration d’une machine de coupe automatique par lame de matériaux en feuilles

Also Published As

Publication number Publication date
WO2023194686A1 (fr) 2023-10-12
JP2025511785A (ja) 2025-04-16
FR3134328B1 (fr) 2024-04-05
US20250214272A1 (en) 2025-07-03
KR20240170952A (ko) 2024-12-05
MX2024011641A (es) 2024-09-30
FR3134328A1 (fr) 2023-10-13
CN118900754A (zh) 2024-11-05
EP4486552A1 (de) 2025-01-08

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