WO2024252054A1 - Dispositif d'alimentation de substrats laminaires et machine de traitement pouvant être accouplée à celui-ci - Google Patents

Dispositif d'alimentation de substrats laminaires et machine de traitement pouvant être accouplée à celui-ci Download PDF

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Publication number
WO2024252054A1
WO2024252054A1 PCT/ES2024/070393 ES2024070393W WO2024252054A1 WO 2024252054 A1 WO2024252054 A1 WO 2024252054A1 ES 2024070393 W ES2024070393 W ES 2024070393W WO 2024252054 A1 WO2024252054 A1 WO 2024252054A1
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WO
WIPO (PCT)
Prior art keywords
laminar substrate
feeder
laminar
wheels
substrate
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.)
Ceased
Application number
PCT/ES2024/070393
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English (en)
Spanish (es)
Inventor
Jesus Francisco Barberan Latorre
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202480037886.9A priority Critical patent/CN121399045A/zh
Publication of WO2024252054A1 publication Critical patent/WO2024252054A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
    • B65H1/06—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile for separation from bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/26—Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
    • B65H1/266—Support fully or partially removable from the handling machine, e.g. cassette, drawer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/28—Supports or magazines for piles from which articles are to be separated compartmented to receive piles side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/063—Rollers or like rotary separators separating from the bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0676—Rollers or like rotary separators with two or more separator rollers in the feeding direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0692—Vacuum assisted separator rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/44—Simultaneously, alternately, or selectively separating articles from two or more piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/44—Simultaneously, alternately, or selectively separating articles from two or more piles
    • B65H3/443—Simultaneously, alternately, or selectively separating articles from two or more piles simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/56—Elements, e.g. scrapers, fingers, needles, brushes, acting on separated article or on edge of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/042—Feeding sheets or blanks using rolls, belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • B31B50/062—Feeding sheets or blanks from stacks from the underside of a magazine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/07—Feeding sheets or blanks by air pressure or suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/88—Printing; Embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4231—Depiling; Separating articles from a pile by two or more separators acting selectively on the same pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42322—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from bottom of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/445—Moving, forwarding, guiding material stream of articles separated from each other
    • B65H2301/4451—Moving, forwarding, guiding material stream of articles separated from each other forming a stream or streams of separated articles
    • B65H2301/44512—Moving, forwarding, guiding material stream of articles separated from each other forming a stream or streams of separated articles forming parallel streams of separated articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/10—Modular constructions, e.g. using preformed elements or profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/942—Bidirectional powered handling device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/31—Suction box; Suction chambers
    • B65H2406/312—Suction box; Suction chambers incorporating means for transporting the handled material against suction force
    • B65H2406/3122—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/363—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum for a plurality of suction means
    • B65H2406/3632—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum for a plurality of suction means means for auto adjustment of vacuum distribution according to the size of handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/13—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the present invention relates to feeding machines for laminar substrates such as cardboard or corrugated cardboard sheets for feeding to a cardboard processing machine, specifically for a machine for applying preparation products, such as for example the application of varnish or primer for subsequent digital printing.
  • these machines are combined with a cardboard feeder, which is designed to hold a stack of cardboard sheets and feeds them separately towards the preparation machine.
  • This cardboard feeder is fixedly located at a location and the preparation product application machine is coupled to it.
  • the feeder consists of a hopper or adjustable area for supplying the stacked cardboard, comprising an adjustable gauge that leaves a passage space corresponding to the thickness of the cardboard sheet.
  • a table with a plurality of wheels for moving/feeding the cardboard. each cardboard sheet.
  • said feeding table comprises a suction table that sucks the cardboard sheet helping said wheels to better traction said cardboard sheet.
  • the feeder comprises a lower feeding roller and a corresponding pressing roller on it to move the cardboard sheet to the feed inlet of the preparation machine.
  • the vacuum table sucks a cardboard sheet, and by transmission of the rotation of the wheels said cardboard sheet moves in the direction of the preparation or processing machine at a speed according to the needs of the preparation machine.
  • the suction table is raised so that the wheels are no longer in contact with the cardboard sheet (the wheels are fixed and the upper plate of the table rises so that the horizontal line of tangency to the upper part of the wheels is below the upper level of the plate of the table to avoid contact), the wheels being driven by a single motor.
  • the suction continues to exist so that the outgoing cardboard sheet and the cardboard sheet immediately above it ready to exit, are sucked against the suction table, being a static element that produces retention of the cardboard sheet.
  • the outgoing cardboard sheet has sufficient traction to exit, due to the traction provided by the traction rollers, despite the retention caused by the raised suction table.
  • the next cardboard sheet as it comes into contact with the raised suction table is retained, preventing the outgoing cardboard sheet from dragging it.
  • the suction table lowers to its initial position where the wheels come into contact again with the next cardboard sheet to be extracted, starting the cycle again.
  • document US20220063938A1 discloses a feeder with a suction table and its corresponding wheels at the gauge output, achieving the necessary traction to feed the machine in this case for processing cardboard to make boxes.
  • This alternative solves the aforementioned problem of the pressing roller, however, with the movement of the suction table, friction will continue to occur on the perimeters of the cardboard sheet.
  • the present invention provides a feeder for laminar substrates for processing machines comprising:
  • - and traction means located after the gauge in the direction of movement of the laminar substrate to direct the laminar substrate to the processing machine, where the feed table is fixed, and comprises control means configured to selectively stop the rotation of the corresponding rotation axis.
  • the axis of rotation of the invention is understood to be the axes that have the function of dragging the substrate, and there may be additional axes, for example, in order to distribute the support of the load, but in this case without the extra function of dragging, said additional axes therefore not being included in the definition of axis of rotation according to the invention. Although they could also form part of a practical alternative of the invention.
  • the supply area is understood to be a hopper, or a space delimited by adjustable walls depending on the dimensions of the laminar substrate.
  • Another of the problems present in the state of the art that is solved with the invention is that friction with the suction table is avoided when it is in an elevated position.
  • the protruding substrate is always in contact with the drive wheels until it exits the passage gauge, which reduces energy efforts.
  • the traction by the wheels makes it possible to move the substrate at the required speed without the need to use a pressing roller, or by reducing the pressing pressure of said roller.
  • the traction of the feed roller located at the outlet will be sufficient, added to the traction provided by the wheels that maintain contact with the laminar substrate, which, in addition, since there is no friction with the suction table as in the state of the art, provides greater traction than in known solutions. In this way, the laminar substrate is prevented from being marked by the pressing of the roller and having to be discarded.
  • control means of the laminar substrate feeder object of the invention are configured to stop the corresponding axis of rotation before the next sheet substrate being fed contacts the wheels on said axle.
  • the feeder for laminar substrates object of the invention comprises a plurality of rotating axes with their corresponding wheels, comprising drive means for each axis and/or group of rotating axes, and the control means being configured to stop the drive means corresponding to the axis or group of axes to be stopped before the next laminar substrate being fed contacts the feed wheels of the corresponding rotating axis.
  • the rotation axis will be stopped, whether it is driven independently or is part of a group of axes with the same drive that needs to be stopped, before it contacts the next substrate to be fed, to avoid moving the next substrate before it is due.
  • the moment at which the next substrate being fed might touch the wheels on a given axis would mark the limiting moment for stopping the rotation of said axis of rotation, the stopping moment being determined by the control means.
  • the stopping moment at which said next substrate would touch the wheels being dependent on the distance between the axles, stiffness of the substrate, dimensions of the substrate, weight of the stack of substrates, density of the substrate material, etc.
  • This stopped shaft will stop providing traction, preventing the next substrate from being dragged and causing jams.
  • the shafts and their corresponding wheels will preferably stop successively as the laminar substrate passes through the feed gauge, with all the shafts then being activated again for a new feeding cycle of the laminar substrate.
  • Another advantage of the present invention is that it is no longer necessary to leave a minimum length of the substrate before its rear flank meets the first wheel axle during extraction so that it can be divided by the feed roller as in the state of the art. With this solution, it will be possible to have a suction table as long as necessary.
  • the wheels attached to the axis of rotation are configured to have free movement in case their axis of rotation is stopped.
  • the wheels will turn at the same time as the turning axis, but in the case where a turning axis is stopped with a laminar substrate being fed, they will have freedom of rotation to prevent the laminar substrate being fed from being rubbed by the wheels due to the stopping of the turning axis.
  • This configuration is especially interesting when there are groups of axes driven by the same drive, so that when the drive is stopped all the axes are stopped, or if for safety reasons it is desired to stop one of the turning axes in the feed before it has passed the rear flank of the substrate, or for example in the case where the substrate has already gained traction with the traction means located after the gauge.
  • At least one axis of rotation can rotate in the opposite direction to that corresponding to the movement of the laminar substrate, providing traction to the wheels in the opposite direction, being useful in case of needing to reposition a laminar substrate that for any reason had been dragged when it was not the right time.
  • the feeding table comprises means for lateral movement of the laminar substrate.
  • the supply and guiding elements of the laminar substrate feeder comprise a lateral guide or stop for the laminar substrate, however, to avoid jams, a clearance is left with respect to said guide preferably of about 0.5 mm on each side.
  • a clearance is left with respect to said guide preferably of about 0.5 mm on each side.
  • These means of lateral movement of the substrate may be in the form of an engraving on the table which causes the substrates to tend to move laterally as they advance towards the feed, or at least a wheel configured to laterally move the substrate towards the corresponding lateral guide, which may be, for example, inclined axes, or wheels intercalated with the axes of the feed wheels.
  • the wheels could be hidden, for example, according to a pneumatic mechanism, hiding themselves when the substrate has already been brought against the side guide.
  • inclined axes it is contemplated that after the substrate has been brought against the guide and its wheels are exposed, the inclined turning axes are stopped, keeping their wheels free to turn in the direction of advance, with the feeding carried out by the aforementioned feed turning axes.
  • the traction means at the gauge exit are at least one feed roller, or one feed roller with its corresponding pressing roller.
  • the traction means at the exit of the gauge are a secondary feeding table with suction and with displacement wheels with independently driven axles and/or axles driven jointly by a single or several drives.
  • This configuration is possible thanks to the maintenance of traction by the wheels of the feeding table that maintain contact with the exiting substrate.
  • the combination of a secondary suction table at the exit of the gauge, together with a feeding roller, is also contemplated, depending on the speed requirements requested by the processing machine.
  • the drive means are servomotors, which facilitate greater control of the acceleration and braking of the wheels.
  • the feeding table comprises at least two suction zones, the control means being configured to activate/deactivate said suction zones selectively.
  • This configuration of a segmented suction table is an interesting implementation option for a feeding table of a suitable length for large-sized laminar substrates, so that each suction zone can be activated or deactivated according to the lengths of the substrates being fed at any given time.
  • the laminar substrate feeder comprises a separator fixable on the feeding table for separation and alignment of substrates. laminar substrates when fed in parallel. Since the suction table is fixed, a movable separator design is not necessary as in the state of the art, thus reducing the difficulty and costs of manufacturing, and being a more reliable implementation without mechanical elements susceptible to failure.
  • This feature in combination with the means of lateral movement of the laminar substrate mentioned above allow the substrate to be brought against the separator so that it acts as a reference, which was not possible in the state of the art due to having a space between the separator and the feeding table for raising the table itself.
  • the laminar substrate feeder comprises movement means for its movement to another location, preferably wheels that allow its movement in the direction of movement of the substrate in its feed, to connect it to the corresponding processing machine, or to carry out maintenance tasks.
  • the invention also relates to a machine for processing laminar substrates, preferably a machine for applying preparation products, with means for moving in the direction of movement of the laminar substrate, and connectable to the feed inlet of the processing machine, in this case to the preparation product application rollers, the substrate feeder comprising a secondary suction table at the exit of the gauge that provides the traction necessary for feeding the substrate to the processing machine.
  • this type of processing machines comprise a feed table with suction and with wheels at the inlet for feeding and accelerating the laminar substrate coming from the laminar substrate feeder, however, with this configuration it is possible to dispense with the feed table in the preparation product application machine, being able to couple it to the laminar substrate feeder. Thanks to this configuration, maintenance tasks are facilitated, especially for cleaning, providing better access to the dosing and preparation product application rollers of the processing machine. In addition, continuity is provided for the transport of the laminar substrates.
  • Figure 1 shows a schematic elevation view of a substrate feeder. laminar according to the state of the art before the laminar substrate begins its displacement.
  • Figure 2 shows a schematic elevation view of a state-of-the-art sheet substrate feeder with the black arrow indicating the elevation of the suction table.
  • Figure 3 shows a schematic elevation view of a feeder for laminar substrates according to the state of the art with the black arrow indicating the descent of the suction table.
  • Figure 4 shows a schematic elevation view of a preferred embodiment of a laminar substrate feeder according to the object of the invention before the laminar substrate begins its movement.
  • Figure 5 shows a schematic elevation view of a preferred embodiment of a sheet substrate feeder according to Figure 4 at the moment when the rear flank of the sheet substrate has passed the first wheel axle.
  • Figure 6 shows a schematic elevation view of a preferred embodiment of a sheet substrate feeder according to Figure 4 at the moment when the rear flank of the sheet substrate has passed the second wheel axle.
  • Figure 7 shows a schematic elevation view of a preferred embodiment of a sheet substrate feeder according to Figure 4 at the moment when the rear flank of the sheet substrate has reached the last wheel axis.
  • Figure 8 shows a schematic elevation view of a preferred embodiment of a sheet substrate feeder according to Figure 4 at the moment the sheet substrate has left the passage gauge.
  • Figure 9 shows a schematic perspective/top view of an alternative embodiment of the sheet substrate feeder with two feed lines.
  • Figure 10 shows a schematic elevation view of an alternative embodiment of the invention with a longer suction table.
  • Figure 11 shows a schematic elevation view of a feeder for laminar substrates coupled to a machine for applying preparation products, according to the state of the art.
  • Figure 12 shows a schematic elevation view of a preferred embodiment of a sheet substrate feeder coupled to a product application machine in accordance with the object of the invention.
  • the length L2 from the gauge (4') of passage until the cardboard sheet (3.1') is stepped on by a pressing roller (10') has to be less than the length L1 from the flank or rear edge of the cardboard sheet (3.T) to the vertical axis of the first wheels (6') that said edge of the cardboard sheet (3.1') would encounter in its motion, with the objective that no wheel (6') remains in contact with the next cardboard sheet to be fed.
  • the feeding table (5') Since it is necessary to comply with this relationship between the lengths L1 and L2, for shorter substrates such as a cardboard sheet (3.1') of approximately 600mm in length, the feeding table (5') would be limited in length resulting in a feeding table (5') that would not be valid for cardboard sheets (3.1') of great length.
  • a feeding table (5’) is raised, so that when said feeding table (5’) is raised, as the wheels (6’) are fixed, they do not come into contact with the next cardboard sheet (3’).
  • the laminar substrate preferably being a cardboard sheet (3.1).
  • the novelty of the invention is presented at the instant of the cycle represented in figure 5, in this case the suction table (5) is fixed, and to prevent the next cardboard sheet from being dragged ahead of time, once the rear edge of the cardboard sheet (3.1) has reached the vertical of the axis of the first wheels (6), so that said axis stops when passing the vertical and before the next cardboard sheet contacts the wheels (6). The rest of the wheel axles (6) will continue moving providing traction to the cardboard sheet (3.1).
  • the invention preferably comprises an independent drive for each wheel axle (6), preferably said drive being a servomotor, so that the cardboard feeder (1) comprises control means that give the stop signal to the servomotor that drives the first wheel axle (6).
  • the moment when the rear edge of the cardboard sheet (3.1) has reached the first axle of the wheels (6) will be calculated by the control means, for example, by reading times at the exit of the rollers (8, 10) where readings are made of the front and rear edges of the cardboard sheets (3.1) to check that the feeding is being carried out correctly.
  • control means calculate when the rear edge of the cardboard sheet (3.1) will reach the axle of the wheels (6), and with this information it will send the stop signal to the servo motor.
  • a cardboard feeder arrangement (1) with two feeding lines comprising a separator (9) fixed to the feeding table (5) that separates and guides both cardboard sheets (3.1).
  • the adaptation to the different dimensions of the cardboard sheets will be carried out by means of retention and guidance of the storage area of the stack of cardboards (3), said separator (9) remaining fixed at all times on the feeding table (5).
  • Feeding (5) This arrangement facilitates manufacturing and avoids errors and failures that can occur in solutions known in the state of the art that comprise a gap between the feeding table and the separator to allow the feeding table to rise.
  • the suction table (5) is segmented, so that there are several suction zones (5.1).
  • the control means will close the suction of the suction zones (5.1) that are outside the length of the stack of cardboard (3) and the axles of the corresponding wheels (6) will remain motionless.
  • a cardboard processing machine that can be coupled to the cardboard feeder (1) and the assembly formed by both machines is also contemplated.
  • the processing machine is preferably, for the practical implementation shown in the figures, a preparation product application machine (11).
  • the preparation product application machine (11') comprises a suction table (11.1) for feeding the cardboard sheet (3.1) to provide the necessary speed to said cardboard sheet (3.1) at the entrance of the application rollers (13').
  • a suction table (11.1) for feeding the cardboard sheet (3.1) to provide the necessary speed to said cardboard sheet (3.1) at the entrance of the application rollers (13').
  • the cardboard feeder (1) comprises a secondary suction table (7) with its corresponding wheels (7.1) at the exit of the gauge (4).
  • the appropriate speed is provided to the cardboard sheet (3.1) according to the requirements of the application rollers (13) of the preparation product application machine (11), and as it is not necessary to include the feed roller (8) and its corresponding pressing roller (10) due to the traction provided by the secondary suction table (7), in this case the cardboard feeder (1) can be directly coupled to a preparation product application machine (11) without a feed suction table (11.1).
  • both the cardboard feeder (1) and the preparation product application machine (11) have means of movement in the direction of movement of the cardboard sheet (3.1), so that they are directly coupled, providing continuity in the movement of the cardboard sheet.
  • the feeding table (5) comprises means for lateral movement of the cardboard sheet.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

L'invention concerne un dispositif d'alimentation de substrats laminaires pour machines de traitement, comprenant : - des éléments d'approvisionnement et de guidage (2) d'au moins une pile de substrats laminaires (3) avec une jauge (4) à hauteur réglable pour le passage d'un seul substrat laminaire (3.1) à la fois, - une table d'alimentation (5) à aspiration, munie d'une pluralité de galets (6) disposés solidaires d'au moins un axe de rotation pour l'alimentation par déplacement du substrat laminaire (3.1), - et des moyens de traction situés après la jauge (4) dans le sens de déplacement du substrat laminaire (3.1) pour diriger le substrat laminaire (3.1) vers la machine de traitement. L'invention est caractérisée en ce que la table d'alimentation (5) est fixe et comprend des moyens de commande conçus pour arrêter la rotation de l'axe de rotation correspondant de manière sélective.
PCT/ES2024/070393 2023-06-07 2024-06-24 Dispositif d'alimentation de substrats laminaires et machine de traitement pouvant être accouplée à celui-ci Ceased WO2024252054A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202480037886.9A CN121399045A (zh) 2023-06-07 2024-06-24 层状基材进料器和可与其联接的加工机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23382557.9A EP4474320A1 (fr) 2023-06-07 2023-06-07 Dispositif d'alimentation de substrat laminaire et machine de traitement pouvant être couplée à celui-ci
EP23382557.9 2023-06-07

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WO2024252054A1 true WO2024252054A1 (fr) 2024-12-12

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EP (1) EP4474320A1 (fr)
CN (1) CN121399045A (fr)
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US4062532A (en) * 1976-04-23 1977-12-13 Koppers Company, Inc. Apparatus for feeding and transporting paperboard blanks
US5006042A (en) * 1989-01-18 1991-04-09 Simon Container Machinery Limited Apparatus for feeding boards or sheets from a stack
US6543760B1 (en) * 2000-08-03 2003-04-08 Emba Machinery Ab Method and device for successively feeding sheets from a stack of sheets
EP1640146A2 (fr) * 2004-09-27 2006-03-29 Bobst S.A. Dispositif d'assemblage d'éléments en plaque pour une machine de fabrication de boîtes
US20070164503A1 (en) * 2004-04-29 2007-07-19 Hans Levin Method and device for feeding sheets one by one from a pile of sheets
US20130221602A1 (en) * 2012-02-29 2013-08-29 Xerox Corporation Jammed sheet reverse using active retard feeder
US20160280484A1 (en) * 2015-04-30 2016-09-29 Theodore Baum Corrugated Paperboard Box Converting Machine Retrofit For Eliminating Edge Crush Test Degradation
US20170152117A1 (en) * 2014-08-29 2017-06-01 Masahiro TSUKASAKI Paper feeding apparatus

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AU4524399A (en) * 1999-06-29 2001-01-31 John Anthony Sullivan Apparatus for feeding sheet material
JP6154707B2 (ja) * 2013-09-26 2017-06-28 株式会社Ｉｓｏｗａ 段ボールシート製函機の給紙装置
CN103708255B (zh) * 2013-12-31 2016-04-06 株洲三新包装技术有限公司 瓦楞纸板水性印刷机的微压除尘送纸装置
ES2547473B1 (es) * 2014-04-03 2016-07-14 Comercial Industrial Maquinaria Cartón Ondulado, S.L. Dispositivo introductor para el suministro de cuerpos laminares en una estación deimpresión gráfica
WO2019165423A1 (fr) 2018-02-26 2019-08-29 Sun Automation, Inc. Appareil et procédé de modernisation d'un alimentateur de feuilles de carton ou de feuilles de carton ondulé sans rouleau d'alimentation
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2257522A1 (en) * 1973-09-29 1975-08-08 Siemens Ag Device for removing individual sheets of film from pile - has drive roller at base of box pushing sheets through slot in box
US4062532A (en) * 1976-04-23 1977-12-13 Koppers Company, Inc. Apparatus for feeding and transporting paperboard blanks
US5006042A (en) * 1989-01-18 1991-04-09 Simon Container Machinery Limited Apparatus for feeding boards or sheets from a stack
US6543760B1 (en) * 2000-08-03 2003-04-08 Emba Machinery Ab Method and device for successively feeding sheets from a stack of sheets
US20070164503A1 (en) * 2004-04-29 2007-07-19 Hans Levin Method and device for feeding sheets one by one from a pile of sheets
EP1640146A2 (fr) * 2004-09-27 2006-03-29 Bobst S.A. Dispositif d'assemblage d'éléments en plaque pour une machine de fabrication de boîtes
US20130221602A1 (en) * 2012-02-29 2013-08-29 Xerox Corporation Jammed sheet reverse using active retard feeder
US20170152117A1 (en) * 2014-08-29 2017-06-01 Masahiro TSUKASAKI Paper feeding apparatus
US20160280484A1 (en) * 2015-04-30 2016-09-29 Theodore Baum Corrugated Paperboard Box Converting Machine Retrofit For Eliminating Edge Crush Test Degradation

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