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EP4019681B1 - Came de tricotage pour un métier à tricoter rectiligne, métier à tricoter rectiligne et procédé de fonctionnement de ladite machine à tricoter rectiligne - Google Patents

Came de tricotage pour un métier à tricoter rectiligne, métier à tricoter rectiligne et procédé de fonctionnement de ladite machine à tricoter rectiligne Download PDF

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Publication number
EP4019681B1
EP4019681B1 EP20216855.5A EP20216855A EP4019681B1 EP 4019681 B1 EP4019681 B1 EP 4019681B1 EP 20216855 A EP20216855 A EP 20216855A EP 4019681 B1 EP4019681 B1 EP 4019681B1
Authority
EP
European Patent Office
Prior art keywords
cam
knitting
insert parts
advanced
guide
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
EP20216855.5A
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German (de)
English (en)
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EP4019681A1 (fr
Inventor
Gerhard Tritschler
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.)
Karl Mayer Stoll R&D GmbH
Original Assignee
Karl Mayer Stoll R&D GmbH
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 Karl Mayer Stoll R&D GmbH filed Critical Karl Mayer Stoll R&D GmbH
Priority to EP20216855.5A priority Critical patent/EP4019681B1/fr
Priority to CN202111588021.6A priority patent/CN114657684B/zh
Publication of EP4019681A1 publication Critical patent/EP4019681A1/fr
Application granted granted Critical
Publication of EP4019681B1 publication Critical patent/EP4019681B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D04B15/36—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B39/00—Knitting processes, apparatus or machines not otherwise provided for
    • D04B39/04—Knitting processes, apparatus or machines not otherwise provided for adapted for combined weft and warp knitting
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/24—Flat-bed knitting machines with independently-movable needles for producing patterned fabrics
    • D04B7/28—Flat-bed knitting machines with independently-movable needles for producing patterned fabrics with stitch patterns

Definitions

  • the invention relates to a knitting cam for a flat knitting machine with a guide cam part arranged in the edge area of the knitting cam.
  • the invention also relates to a flat knitting machine and a method for operating a flat knitting machine.
  • the needles selected for this purpose must be brought into a defined, advanced position.
  • the carriage then takes up a position outside the knitting or needle bed area.
  • a special lock is provided at the end of the carriage, which moves selected needles into an advanced position as they run out. Since the lock has no take-off parts, the normal knitting functions cannot be carried out. As they run in, only the needles that were advanced before the carriage was reversed can be processed and retracted.
  • a knitting machine with the features of the preamble of claim 1 is known from JP H06 4092 U became known.
  • EP 2 025 785 A1 , DE 21 44 271 A and JP H08 74146 A disclose a knitting machine with which warp threads in knitted sections can be inserted into slider needles of the front needle bed by means of tubular thread guides.
  • the object of the present invention is to provide a knitting lock with which inserts for a warp thread function can be advanced and yet all knitting functions can be carried out with the knitting lock.
  • the at least one guide lock section can be brought into a position lowered towards the lock plate for an inactive position, or can be moved into, under or over another lock part, in particular another guide lock section, and thus switched to inactive.
  • the guide lock section When the guide lock section is lowered, it can be at least partially sunk into the lock plate.
  • the guide lock section is arranged at a distance above the lock plate in an active position, i.e. there is "air" between the guide lock section and the lock plate.
  • the guide lock section can be lowered for an inactive position so that the distance to the lock plate is reduced, no longer exists, i.e. the underside of the guide lock section is at the level of the lock plate, or the guide lock section is at least partially sunk into the lock plate.
  • the guide lock section When the guide lock section is displaced for an inactive position, in particular displaced parallel to the top of the lock plate, it can be displaced into, over or under another lock part, in particular another guide lock section.
  • the other lock part can have a pocket in which the displaced guide lock section can be received.
  • an additional cam track can be created that can be used by inserts that have been advanced for a warp thread insert.
  • the guide cam section is used in its active position, the guide cam part can be used in its conventional function.
  • the guide cam part can have three guide cam sections. At least one guide cam section can be switchable. This makes it possible, for example, to form a channel between the other two guide cam sections by deactivating one guide cam section. In particular, this makes it possible to keep the control feet of inserts that have been pushed forward and those that have not been pushed forward separate. This supports the reliability of the knitting process.
  • a guide cam section can be provided for stabilizing control feet of knitting needles when they pass through a cam track formed by another guide cam section.
  • the pusher part is arranged below the take-off part, which is also arranged at the same height as a pusher part provided to form a tuck handle. If a take-off part is provided, the usual, normal knitting functions can be carried out. By providing a further additional pusher part in the area of the take-off part, however, it can be prevented that the control feet of inserts that have a advanced position, are pulled off the take-off part. The inserts thus remain in an advanced position and warp thread applications can be carried out. In knitting locks, a pusher part is often already provided in the area of a take-off part, but this is located on a different track than a pusher part that is intended for catching.
  • two pusher parts are therefore preferably provided below a take-off part.
  • a pusher part in the area of the take-off part can be used to prevent the insert from being pulled off, so that the insert remains in an advanced position.
  • the scope of the invention also includes a flat knitting machine with a knitting cam according to the invention.
  • the scope of the invention includes a method for operating a flat knitting machine with the features of claim 8, in which one or more inserts, in particular knitting needles, of a front needle bed and/or one or more inserts, in particular knitting needles, of a rear needle bed are brought into a defined advanced position for a warp thread application, and then a thread is introduced into the advanced inserts.
  • a pusher part is provided which prevents the advanced inserts from being pulled off.
  • a guide cam part has a guide cam part section which can be switched to inactive, so that an additional cam track is created and withdrawal of the inserts at this point is prevented.
  • a lock track can be created by switching off a guide lock section when entering the lock.
  • this can prevent the advanced inserts from being pulled off as they enter the lock.
  • a pusher part can be activated as the lock is running in to lift the control feet of the advanced inserts over a pull-off part. This makes it possible for the control feet of the corresponding inserts to then reach a lock area with which a knitting operation can be carried out.
  • a further pusher part is activated as the lock is running in to lift the control feet of the advanced inserts over another pull-off part. This means that the advanced inserts can also remain in an advanced position as the lock is running in.
  • control feet of advanced inserts and non-advanced inserts are kept separate by a guide lock section.
  • the method according to the invention it is possible in particular to drive out all needles or areas of needles or individual needles of the front and/or rear needle bed for warp thread applications into a defined, advanced position. It is also possible to process and loop the needles driven out for warp thread applications into the lock after the carriage has been reversed.
  • One or more additional lock paths for the needles or other inserts of the needle bed can be created by designing the guide lock part so that it can be switched in sections.
  • the guide lock part(s) can be designed in several parts.
  • the conventional handle part control can have an additional switchable handle part on the lock exit and/or on the lock entry side, which makes it possible to lift the advanced inserts over a trigger part.
  • the Fig. 1 shows a knitting lock 100 as part of a knitting system not shown in detail.
  • the knitting lock 100 comprises a guide lock part 1, take-off parts 3, pusher parts 5 arranged in the area of the take-off parts 3 and a pusher part 4.
  • the take-off parts 3 and the pusher parts 4, 5 are usually present on knitting locks.
  • These lock parts are used to drive out and pull off insert parts, in particular knitting needles, for the production of knitted fabrics and for holding the insert parts in the same position as the comb.
  • the pusher parts 4, 5 are used to press selected control feet of the insert parts.
  • the guide lock part 1 has guide lock sections 1a, 1b, whereby in the embodiment shown the guide lock section 1b is switchable.
  • the guide lock section 1b can be lowered in the direction of the lock plate 7 or can be moved into, under or over another lock part, e.g. the guide lock section 1a.
  • the Guide lock section 1a is fixed, ie not arranged to move relative to lock plate 7.
  • guide lock section 1a it would also be conceivable to design guide lock section 1a to be switchable and guide lock section 1b to be rigid or to provide both guide lock sections 1a, 1b as switchable guide lock sections.
  • a switchable guide lock section 1a, 1b can be lowered or switched using a slide, lever, motor, magnet, hydraulically or pneumatically.
  • an additional, also switchable, presser part 2 is provided on the outgoing side of the switchable presser part 4 for catching.
  • the presser part 2, just like the presser part 5, can be used to press the control foot of a selected insert into the needle bed (not shown here) and thus lift it out of the lock curve via the take-off part 3, thereby preventing the selected insert from being pulled back or curled.
  • control feet of the selected inserts that are lifted over the take-off part 3 enter an additional cam track Z that is created when the guide cam section 1b is lowered. This keeps the inserts in their advanced position and allows them to be used in this position for warp thread applications.
  • the trigger part 2 is located on the same track as the trigger part 4 for the catch. In addition, like the trigger part 5, it is also located below the right trigger part 3.
  • the Fig. 2 essentially corresponds to the Fig. 1 with the difference that the guide lock part 1 has three sections.
  • the guide lock part sections 1a, 1b are again provided, with the guide lock part section 1b being designed to be switchable.
  • a guide lock part section 1c is provided.
  • the guide lock part section 1c allows the control feet of insert parts that have an advanced position to be kept separate from the control feet of insert parts that do not have an advanced position.
  • the control feet of insert parts that do not have an advanced position move along the underside of the guide lock part section 1c.
  • the Fig. 3 shows the possible path F (solid line) for the formation of the catch and the subsequent expulsion to the warp thread inlay of control feet of inlay parts (not shown in detail here) during the formation of the stitch in a lock 100 according to the invention.
  • the carriage movement direction is in the Fig. 3 represented by the arrow L.
  • the selected control foot or the selected control feet first pass the drive cam part 6, whereby the inserts are pushed forward from their comb-equal position in the needle bed.
  • the control feet of the selected inserts are pressed into the needle bed by means of the pusher part 4 for catching. Catch handles are initially formed here with these inserts.
  • the control feet are also pressed into the needle bed by the additional switchable pusher part 2, whereby they cannot be pulled back by the trailing take-off part 3.
  • the trailing guide cam section 1b is thereby moved to an inactive position. switched, i.e. lowered.
  • the control feet are guided through the additional lock track Z.
  • the selected inserts remain in their advanced position and can be used for warp thread applications.
  • the selected control feet again pass through the drive cam part 6, whereby the inserts are pushed forward from their position in the needle bed, which is the same as the comb. This is where stitches are initially formed.
  • the control feet are pressed into the needle bed by the pusher part 5 running out of the cam, whereby they cannot be pulled back by the trailing take-up part 3.
  • the trailing guide cam section 1b is switched to an inactive position.
  • the control feet are guided by the additional cam track Z.
  • the selected inserts remain in their advanced position and can thus be used for warp thread applications.
  • presser feet of the inserts are on a different track, which is why presser part 5 was used instead of presser part 2.
  • a stitch formation with subsequent expulsion to the warp thread insert can also be achieved via the other selection track by switching the pusher part 4 for catching to its inactive position and using the pusher part 2.
  • the Fig. 4a, 4b show possible variants for the formation of tuck loops and loops in combination with the expulsion of inserts into a position for warp thread applications.
  • the path F, on which tuck loops are formed, is shown as a solid line.
  • the path MB, on which loops are formed, is shown as a dashed line.
  • the control feet of the inserts that were selected for tuck formation are pressed into the needle bed by means of the pusher part 4 for tuck formation. These inserts are initially used to form tuck loops. As the path F continues, the control feet of the inserts are pressed into the needle bed by the switchable pusher part 2, meaning that they cannot be pulled back by the trailing take-off part 3. The trailing guide cam section 1b is switched to an inactive position. The control feet are guided by the additional cam track Z. The selected inserts thus remain in their advanced position after tuck formation and can be used for warp thread applications.
  • the control feet of the inserts selected for stitch formation are not pressed into the needle bed by the pusher part 4 and the selected inserts are driven out to form stitches, according to the path MB.
  • the pusher part 5 is switched to its inactive position and does not act on the control feet. As a result, the control feet come into contact with the trailing take-off part 3 and are pulled off by this to the specified depth of stitch formation. These control feet are therefore guided below the guide cam part 1 on its underside.
  • control feet of the inserts that were selected for catching are pressed into the needle bed. Catch loops are formed with these inserts. As the path F continues, these control feet are not pressed into the needle bed by the additional switchable pusher part 2, which was switched to inactive for this purpose. As a result, the control feet come into contact with the trailing take-up part 3 and are pulled by it to the specified weaving depth. The corresponding inserts can therefore no longer be used for a warp thread application.
  • the control feet of the inserts selected for stitch formation are not pressed into the needle bed by the pusher part 4 and the selected inserts are driven out for stitch formation (path MB, dashed line).
  • the additional switchable pusher part 5 is in its active position and acts on the control feet.
  • the trailing guide cam section 1b is switched to an inactive position.
  • the control feet are guided by the additional cam track Z.
  • the selected inserts thus remain in their advanced position after stitch formation and can be used for warp thread applications.
  • the guide cam section 1c keeps the control feet safely separated from inserts in an advanced position and from inserts in a retracted position.
  • the Fig. 5a to 5d show the knitting lock 100 after a carriage reversal.
  • the carriage and thus the knitting lock 100 now move in the direction of arrow R.
  • the control feet of inserts that were pushed forward for a warp thread application are guided by the cam 100 through the additional cam track Z by switching off the now leading guide cam section 1b. Then, depending on the selection, the control feet are pressed into the needle bed either via the additional switchable pusher part 2 or via the pusher part 5, and thus lifted into the knitting curve via the take-off part 3. In the process, it is selected which of the selected control feet should form a catch (path F, solid line) or a stitch (path MB, dashed line).
  • a selection system not shown here decides which track is selected and whether the pusher part 2 or the pusher part 5 must be switched accordingly.
  • the Fig. 6 shows the possibility of retracting the inserts that are pushed forward to the warp thread insert on the way out of the lock and then back into the basic position on the way in after the carriage has been reversed.
  • the Fig. 7 shows a symmetrically designed knitting lock 100.
  • the guide lock sections 1a, 1b, 1c and the additional switchable pusher part 2 can be provided on both sides of the lock 100.
  • This structure of the lock 100 allows the needles selected for warp thread insertion to remain in their position even during normal operation of the lock 100 for stitch formation.
  • the guide lock sections 1b have been at least partially sunk, so that corresponding lock tracks Z are created through which the feet of inserts are guided.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Claims (14)

  1. Came de tricotage (100) pour un métier à tricoter rectiligne comportant une pièce de came de guidage (1) disposée dans la zone marginale de la came de tricotage (100), dans laquelle la pièce de came de guidage (1) présente au moins deux sections (1a, 1b, 1c) de pièce de came de guidage et au moins une section (1a, 1b, 1c) de pièce de came de guidage peut être commutée entre une position active et une position non active, caractérisée en ce qu'il est prévu une pièce poussoir (2, 5) et une pièce de tirage (3), dans laquelle la pièce poussoir (2, 5) peut être activée en fin de came pour soulever des pieds de commande de pièces d'insertion au-dessus de la pièce de tirage (3) et une voie de came (Z) est créée pour les pieds de commande des pièces d'insertion en désactivant l'au moins une section (1a, 1b, 1c) de pièce de came de guidage.
  2. Came de tricotage (100) selon la revendication 1, caractérisée en ce que l'au moins une section (1a, 1b, 1c) de pièce de came de guidage peut être placée dans une position abaissée pour une position non active, ou peut être placée dans, en dessous ou au-dessus d'une autre pièce de came et être ainsi désactivée.
  3. Came de tricotage (100) selon la revendication 1 ou 2,
    caractérisée en ce que la pièce de came de guidage (1) présente trois sections (1a, 1b, 1c) de pièce de came de guidage.
  4. Came de tricotage (100) selon l'une des revendications précédentes,
    caractérisée en ce qu'une section (1c) de pièce de came de guidage est prévue pour la stabilisation de pieds de commande de pièces d'insertion lorsque celles-ci traversent une voie de came (Z) formée par une autre section de pièce de came de guidage.
  5. Came de tricotage (100) selon l'une des revendications précédentes,
    caractérisée en ce que la pièce poussoir (2) est disposée en dessous de la pièce de tirage (3), laquelle pièce poussoir est en outre disposée à la même hauteur qu'une pièce poussoir (4) prévue pour former un flotté.
  6. Came de tricotage (100) selon l'une des revendications précédentes,
    caractérisée en ce qu'elle est réalisée de manière symétrique par rapport à un plan médian.
  7. Métier à tricoter rectiligne comportant une came de tricotage (100) selon l'une des revendications précédentes.
  8. Procédé permettant de faire fonctionner un métier à tricoter rectiligne comportant une came de tricotage (100) selon l'une des revendications précédentes 1 à 6, dans lequel une ou plusieurs pièces d'insertion d'une fonture avant et/ou une ou plusieurs pièces d'insertion d'une fonture arrière pour une application de fil de chaîne sont amenées dans une position avancée définie en fin de came, après quoi un fil peut être introduit dans les pièces d'insertion avancées, caractérisé en ce que, en fin de came, une pièce poussoir (2, 5) est activée pour soulever les pieds de commande des pièces d'insertion avancées au-dessus d'une pièce de tirage (3), et une voie de came (Z) est créée pour les pieds de commande des pièces d'insertion avancées en désactivant une section (1a, 1b, 1c) de pièce de came de guidage, en particulier en l'abaissant, ou en la déplaçant dans, en dessous ou au-dessus d'une autre pièce de came.
  9. Procédé selon la revendication 8, caractérisé en ce que des pièces d'insertion à avancer sont sélectionnées et sont avancées dans la fonture par l'intermédiaire d'une pièce de came d'extraction (6) et, selon la position de commutation d'une pièce poussoir (4), un flotté ou une maille est ensuite formé(e) avec les pièces d'insertion avancées.
  10. Procédé selon l'une des revendications précédentes 8 ou 9,
    caractérisé en ce qu'une voie de came (Z) est créée par le retrait de la commutation d'une section (1b) de pièce de came de guidage en début de came.
  11. Procédé selon l'une des revendications précédentes 8 à 10,
    caractérisé en ce que, en début de came, une pièce poussoir (2, 5) est activée pour soulever des pieds de commande des pièces d'insertion avancées au-dessus d'une pièce de tirage (3).
  12. Procédé selon l'une des revendications précédentes 8 à 11,
    caractérisé en ce que, en début de came, une autre pièce poussoir (5) est activée pour soulever des pieds de commande des pièces d'insertion avancées au-dessus d'une autre pièce de tirage.
  13. Procédé selon l'une des revendications précédentes 8 à 12,
    caractérisé en ce que les pieds de commande sont maintenus séparés de pièces d'insertion avancées et de pièces d'insertion non avancées par une section (1c) de pièce de came de guidage.
  14. Procédé selon l'une des revendications précédentes 8 à 13,
    caractérisé en ce que des aiguilles à tricoter sont utilisées comme pièces d'insertion.
EP20216855.5A 2020-12-23 2020-12-23 Came de tricotage pour un métier à tricoter rectiligne, métier à tricoter rectiligne et procédé de fonctionnement de ladite machine à tricoter rectiligne Active EP4019681B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20216855.5A EP4019681B1 (fr) 2020-12-23 2020-12-23 Came de tricotage pour un métier à tricoter rectiligne, métier à tricoter rectiligne et procédé de fonctionnement de ladite machine à tricoter rectiligne
CN202111588021.6A CN114657684B (zh) 2020-12-23 2021-12-23 横机或编织机的针织三角

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20216855.5A EP4019681B1 (fr) 2020-12-23 2020-12-23 Came de tricotage pour un métier à tricoter rectiligne, métier à tricoter rectiligne et procédé de fonctionnement de ladite machine à tricoter rectiligne

Publications (2)

Publication Number Publication Date
EP4019681A1 EP4019681A1 (fr) 2022-06-29
EP4019681B1 true EP4019681B1 (fr) 2025-03-05

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EP20216855.5A Active EP4019681B1 (fr) 2020-12-23 2020-12-23 Came de tricotage pour un métier à tricoter rectiligne, métier à tricoter rectiligne et procédé de fonctionnement de ladite machine à tricoter rectiligne

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EP (1) EP4019681B1 (fr)
CN (1) CN114657684B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4474552A1 (fr) 2023-06-06 2024-12-11 KARL MAYER STOLL R&D GmbH Procédé de fabrication d'un tricot avec un fil de chaîne incorporé

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2144271A1 (de) * 1971-06-12 1972-12-21 Shima Idea Center Co. Ltd., Wakayama (Japan) Flachstrickmaschine
EP1972706B1 (fr) * 2005-11-17 2013-09-04 Shima Seiki Manufacturing., Ltd. Machine a tricoter a mailles cueillies permettant d inserer une chaine et procede de tricotage par cette machine

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
JP2580388Y2 (ja) * 1992-06-10 1998-09-10 シルバー精工株式会社 編機のキャリジ
JPH0874146A (ja) * 1994-09-05 1996-03-19 Shima Seiki Mfg Ltd コンパウンドニードルを用いた横編機における経糸用カムロック
ES2273935T3 (es) * 2002-03-23 2007-05-16 H. STOLL GMBH & CO. Tricotosa rectilinea con platinas ajustables.
WO2007132559A1 (fr) * 2006-05-17 2007-11-22 Shima Seiki Mfg., Ltd. procÉdÉ de tricotage de tissu À motifs intArsia et MÉTIER À mailles cueillies
EP2196569B1 (fr) * 2007-09-05 2015-06-10 Shima Seiki Mfg., Ltd Métier à mailles cueillies
DE102010017946B4 (de) * 2010-04-22 2013-10-10 H. Stoll Gmbh & Co. Kg Schlosssystem für eine Flachstrickmaschine
CN103437054B (zh) * 2013-09-02 2015-03-04 冯加林 一种电磁选针的横机三角编织机构及其集圈、接圈编织方法
EP3556921B1 (fr) * 2018-04-16 2021-09-01 KARL MAYER STOLL R&D GmbH Machine à tricoter rectiligne et procédé de fabrication d'un tricot à motifs filigranes
US11401638B2 (en) * 2018-05-22 2022-08-02 Fabdesigns, Inc. Method of knitting a warp structure on a flat knitting machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2144271A1 (de) * 1971-06-12 1972-12-21 Shima Idea Center Co. Ltd., Wakayama (Japan) Flachstrickmaschine
EP1972706B1 (fr) * 2005-11-17 2013-09-04 Shima Seiki Manufacturing., Ltd. Machine a tricoter a mailles cueillies permettant d inserer une chaine et procede de tricotage par cette machine

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Publication number Publication date
EP4019681A1 (fr) 2022-06-29
CN114657684A (zh) 2022-06-24
CN114657684B (zh) 2024-03-15

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