EP2253545A1 - Machine d'emballage dotée d'un système automatique pour le pliage du rabat de fermeture du paquet et procédé d'emballage - Google Patents

Machine d'emballage dotée d'un système automatique pour le pliage du rabat de fermeture du paquet et procédé d'emballage Download PDF

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Publication number
EP2253545A1
EP2253545A1 EP09382072A EP09382072A EP2253545A1 EP 2253545 A1 EP2253545 A1 EP 2253545A1 EP 09382072 A EP09382072 A EP 09382072A EP 09382072 A EP09382072 A EP 09382072A EP 2253545 A1 EP2253545 A1 EP 2253545A1
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EP
European Patent Office
Prior art keywords
film
flaps
packages
station
hold
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.)
Withdrawn
Application number
EP09382072A
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German (de)
English (en)
Inventor
Unai Pedregal Martin
Eneko Izquierdo Ereño
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.)
Ulma Packaging Technological Center S Coop
Original Assignee
Ulma Packaging Technological Center S Coop
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 Ulma Packaging Technological Center S Coop filed Critical Ulma Packaging Technological Center S Coop
Priority to EP09382072A priority Critical patent/EP2253545A1/fr
Publication of EP2253545A1 publication Critical patent/EP2253545A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/26—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by closing hinged lids

Definitions

  • the present invention is comprised within the technical field of packaging machines and, particularly, in the sector of thermoforming packaging machines using plastic films, such as, for example, ABS, PVC, HIPS, PP, PET, etc., to form various types of packages, such as, for example, blisters.
  • plastic films such as, for example, ABS, PVC, HIPS, PP, PET, etc.
  • Thermoforming is one of the oldest methods for processing plastics. It basically consists of subjecting a plastic film, such as ABS, PVC, HIPS, PP, PET, etc., arranged on a thermoforming mold and held at the ends by clamps, to a preheating, molding and cooling process. In this process, the previously heated material softens, becoming deformable, and is pressed against the mold such that the material adopts the form of the mold which is cooled. When the heated material enters the cold mold, it cools and becomes rigid, the acquired form being stable. The thickness of wall of the formed piece is always less than the starting thickness of the film used for its manufacture.
  • a plastic film such as ABS, PVC, HIPS, PP, PET, etc.
  • thermoforming the films are used depending on the plastic to be thermoformed, the type of pressing that is applied and on the final rigidity final and form of the piece to be obtained, such as compressed air (pressurized air) and/or vacuum forming, or plug-assisted compressed air and/or vacuum forming.
  • compressed air pressurized air
  • vacuum forming or plug-assisted compressed air and/or vacuum forming.
  • the mold used varies depending on these parameters.
  • a line for the continuous manufacture of packages provided with closure flaps, such as blisters, and the packaging of the corresponding products usually comprise a first lower piece thermoforming station, a flap cutting station, a product filling station, possibly a box filling station, a welding station for welding an upper film in the lower piece, and a unitary separation station for packages.
  • the preforms of the lower piece are formed from a first plastic film fed from a first reel and progressively heated as it moves forward throughout a heating system, until reaching a press in which a ram (usually cooled by water) contacts with the hot surface of the film and gives it the form of the mold, such as, for example, a form complementary to the product which will later be housed in the package.
  • the ram can comprise several identical molds, such that parallel rows of package preforms are formed in the film.
  • each flap In the flap cutting station, the outer edges of each flap are cut and a fold line is made, such as, for example, a perforated line, through which the flap will later be folded to partially cover the upper part of the package.
  • a fold line is made, such as, for example, a perforated line, through which the flap will later be folded to partially cover the upper part of the package.
  • the film of preforms then passes to the filling station in which the corresponding product is deposited in each mold preform, whereas in the box filling station respective sheets of paper or cardboard are inserted on the products contained in the respective preforms manually or by means of robots.
  • the upper cover is formed from a second plastic film, coated on its lower face with a lacquer, and fed from a second reel which moves forward through die-cutting means making rows of rectangular windows in the upper films. Then, the upper film is superposed on the rows of preforms of the packages such that the windows coincide with the flaps and is welded by pressure and heat to the contours of the preforms, closing them.
  • the thickness of the lacquer may be reduced by approximately 90% to about 5 microns, in addition to losing the uniformity of the layer, which makes welding said film to the preforms of package in the lower film difficult.
  • the upper film is stretched and heated, its layer of lacquer loses its shine and transparency, which are two important qualities in the blisters.
  • the object of the present invention is to overcome at least part of the drawbacks of the state of the art described above by means of a novel packaging machine with an automatic system for folding the closure flap of the package, particularly a blister, and by means of a novel method used for packaging.
  • the machine according to the invention comprises
  • the hold-down means can each comprise an upper hold-down plate connected to an upper drive system for moving the upper hold-down plate in a vertical direction, and a lower hold-down plate connected to a lower drive system for moving the lower hold-down plate in a vertical direction.
  • the lower hold-down plate and the raising element are assembled in a lower support connected to the lower drive system.
  • the rear face of the lower hold-down plate and the front face of the raising element are in sliding contact through at least one vertical slide in the raising element in which there penetrates at least one lug emerging from the rear face of the lower hold-down plate.
  • each upper hold-down plate can be connected to the upper drive system through an upper forward movement position adjustment system
  • each lower support can be connected to the lower drive system through a lower forward movement position adjustment system.
  • the lower hold-down plate can be assembled in the lower support through shock absorbing means, such that, when the hold-down plates have moved vertically towards one another and grip the transverse film, the upward thrust of the lower drive system causes a subsequent rise of the lower support and of the raising element as well as a compression of the shock absorbing means and an locking of the lower hold-down plate.
  • the upper drive system can be an upper pneumatic cylinder
  • the lower drive system can be a lower pneumatic cylinder.
  • the upper drive system and the lower drive system are preferably anchored in a fixed frame.
  • the shock absorbing means each comprise a vertical cylindrical bar with an upper part which is movable inside the lower hold-down plate and a lower part anchored in the lower support, as well as a coil spring with an lower end supported in the lower support and an upper end supported in the lower hold-down plate.
  • the shock absorbing means each comprise a pneumatic shock absorber or a hydraulic shock absorber.
  • the folding plate can be coupled to a vertical adjustment guide which in turn is coupled to a forward movement position adjustment guide emerging from a rear part of the fixed frame.
  • the latter can comprise a high-frequency welding press with welding and pre-cutting strips emerging from the lower part of an upper welding tool in correspondence with the areas to be welded in the contour of the packages which will subsequently be made individual, as well as a lower welding tool.
  • each strip can comprise an outer blade part.
  • the blade has in this case a cutting edge with a lower height than the thickness of the lower film and of the upper film, in order to make a pre-cut in the form of a weakening line weak enough to allow the automatic separation of the finished packages from the films in the unitary separation station.
  • the unitary separation station can comprise an upper ejection tool arranged above the production line, and a lower ejection tool arranged under the production line and provided with ejection openings for the finished packages.
  • the upper ejection tool comprises a plurality of support bars between respective two of which there are arranged respective plates forming respective ejection surfaces
  • the lower ejection tool is vertically movable in an upward and downward direction by means of a lower pneumatic actuator coupled to the lower frame.
  • the plates with the ejection surfaces and the ejection openings have, in the horizontal plane, dimensions similar to those of the packages, and are vertically aligned with one another.
  • the ejection surfaces are sized and arranged such that each can penetrate an ejection opening of the lower ejection tool, for the purpose of ejecting each package from the assembly formed by the films, for example towards a conveyor belt or collecting container.
  • the plates forming the ejection surfaces can be inclined plates, and each of the inclined plates is attached at its end parts to an upper part of the support bars, the lowest end parts being located at the height of the upper part of the support bars.
  • the upper ejection tool can furthermore be provided with respective suction cups anchored in an upper horizontal structure emerging from the lower part through respective circular holes in the respective plates and holding the preformed package for the purpose of assuring that each ejection surface passes over the entire contour of the pre-cut package in the lower and upper films, and thus the complete separation of the package from said films is produced.
  • the support bars are connected at their respective upper ends to said upper horizontal structure by means of spring shock absorbers, whereas said upper horizontal structure is in turn connected to an upper pneumatic actuator allowing the upper ejection tool to perform upward and downward vertical movements.
  • the lower ejection tool comprises a lower frame in which there is supported an upper bridge with a horizontal grill with crosspieces between which said ejection openings are located.
  • the method of packaging products in packages, particularly blisters, provided with closure flaps with automatic folding of the flaps comprises
  • a pre-cut can furthermore be made in the welding press which surrounds the welded areas in the contour of each of the packages which will subsequently be made individual.
  • each of the packages can be extracted from the films in the unitary package station, separating each package through the corresponding pre-cut.
  • Figures 1-4 show an embodiment of a machine for manufacturing packages in the form of blisters -8- provided with thermoformed receptacles -2a- and closure flaps -2b- of the type such as the one shown with more detail and in a merely illustrative manner in Figure 5B , as well as the steps of the thermoforming, loading and finishing process performed by such machine.
  • the vertical arrows indicate the forward movement direction of the machine.
  • the machine comprises a thermoforming station -1-conventional in itself, a flap cutting station -3- conventional in itself, a filling station -4-conventional in itself, a flap folding system -5-, a welding station -6-, and a unitary separation station -10- for the packages.
  • thermoforming station -1- a lower film -2-, for example made of PET or PVC, coming from a reel -2e- first passes through a heating system -1a-, which can be formed, for example, from an assembly of infrared tiles located above the film -2a-, the temperature of which increases as the film -2a- moves forward towards the outlet of the heating system -1a- .
  • a thermoforming press -1 b- At the outlet of the heating system -1a- there is located a thermoforming press -1 b- provided with an upper press ram -1c- cooled by water as well as a lower molding tool -1d-.
  • thermoforming press -1 b- molds successive groups of receptacles -2a- in the film -2a- arranged parallel to one another and transversely to the forward movement direction of the film -2- in the machine.
  • the groups are separated from one another by means of respective transverse strips of the film -2a-, from which, as well be described below, the closure flaps -2b- of the finished packages -8 - will be cut.
  • Figures 2 and 3 show groups respectively formed by four parallel receptacles -2a-.
  • the film -2- Upon exiting the thermoforming station -1-, the film -2- passes through a flap cutting station -3- in which, by means of a cutting press -3a- (see also Figure 6 ) the outer edges of the flaps -2b- are cut and fold lines -2c- of the flaps -2b- between each flap -2b- and each receptacle -2a- are simultaneously made, transversely with respect to the forward movement direction, such that, seen in the forward movement direction, each flap -2b- is arranged in front of each receptale -2a- (see also Figures 5A , drawing (l) and Figure 7 ).
  • the film -2- provided with the receptacles -2a-, the cut flaps -2b- and the fold lines -2c- then moves forward through a filling station -4- in which respective products (not shown in the figures) are inserted in the receptacles -2a-.
  • This insertion can be carried out conventionally by means of an automatic system (not shown in the figures) or manually.
  • each cut flap -2b- is folded upwards through its fold line -2c- due to the action of a raising element -5c- (see also Figure 5A , drawing (II)).
  • the upwardly folded flaps contact an inclined deflecting flat bar -5e- arranged in the transverse edge of a folding plate -5d-, at which time the hold-down plates -5a, 5b- open and the raising element -5c-moves downwards, the hold-down plates -5a, 5b- and the raising element -5c-wailing for the arrival of the next group of cut flaps -2b- in the lower film -2-.
  • the film -2- then moves forwards under the folding plate -5d- towards the welding station -6-.
  • the folding plate -5d- is arranged on the film -2- at a lower height than the height of the upwardly folded flaps -2b-, when the latter pass under the folding plate -5d- they are forced to be folded over the lower film -2- through their respective fold lines -2c-, such that each of the flaps -2d- is arranged on a part of the receptacle -2a-which it precedes.
  • the upper hold-down plate -5a- is connected to an upper pneumatic cylinder -5g- through an upper forward movement position adjustment system -5h-
  • the lower hold-down plate -5b- is connected to a lower pneumatic cylinder -5i-through a lower support -51- and a lower forward movement position adjustment system -5j-.
  • the raising element -5c- is also locked in the support.
  • the adjustment systems -5h, 5j- allow moving the position of the hold-down plates -5a, 5b- forwards and backwards to adapt to the length of the flaps -2b- of the packages -8- which are being manufactured.
  • the pneumatic cylinders -5g, 5i- are anchored in a fixed frame -5k-, from the rear part of which there emerges horizontally a forward movement position adjustment guide -5m- to which a vertical adjustment guide -5n- attached to the folding plate -5d- is coupled.
  • These guides -5m, 5n- allow adapting the relative position of the folding plate -5d- with respect to the characteristics of the flap -2b- of the type of packages -8- which are being manufactured in each production cycle.
  • the lower hold-down plate -5b- is assembled in a sliding manner on a vertical cylindrical bar -5f- anchored in the lower support -51- and surrounded by a coil spring -5o- which at its lower end is supported in the lower support -51- and at its upper end is supported in the lower hold-down plate -5b-.
  • the rear face of the lower hold-down plate -5b- and the front face of the raising element -5c- are in sliding contact through vertical slides -5g- in the raising element -5c- in which there penetrate one or more lugs -5p- emerging from the rear face of the lower hold-down plate -5b-.
  • the pneumatic cylinders -5g, 5i- are first actuated to vertically move the hold-down plates -5a, 5b- until they collide with one another, gripping the fold line -2c- of the flap -2b-.
  • the upper pneumatic cylinder -5g- stops whereas the lower pneumatic cylinder -5i- continues thrusting the support -51- upwards, such that the support -51- continues rising and thrusting the cylindrical bar -5f- into the lower hold-down plate -5b- while at the same time the spring -5o- is compressed.
  • the lower pneumatic cylinder -5i- also stops.
  • the lower film -2- When the lower film -2- continues moving forward after having passed through the folding system -5-, it enters the welding station -6- (see also Figure 9 ) in which it meets an upper film -7- supplied from reel -7a- through a feeding system -6b- formed by an assembly of rollers, and provided with transverse rectangular openings -7b-.
  • the upper film -7- is superposed on the lower film -2- such that its openings -7b- coincide with a part of the flaps -2b- (see Figures 14 and 5A , drawing (III)).
  • the flaps -2b- remain folded to the lower film -2- on the side of the upper film -7- which is superposed on a part of the flaps -2b- and, on the other hand, that in the finished package -8- there is a part of the flap -2b- that is not covered by the upper film -7- from which the flap -2b- can be opened.
  • the welding press -6c- performs high-frequency welding which allows welding films -2,7- made of poplar plastics such as PET (having bonds to O atom) and PVC (having bonds to Cl atoms) without needing lacquers, as shown by the following formulas:
  • the films -2,7- are excited to their resonance frequency corresponding to a nominal frequency of about 27.2 MHz, which must be conventionally adjusted according to the specific material, the thickness of the films, etc.
  • the atoms determining the polar nature of the material of the films such as, for example, chlorine in the case of PVC and oxygen in the case of PET, change their orientation as many times as the polarity, such that during their movement they rub against the rest of the molecules and cause the heating of the welding area until the films -2,7- can be welded to one another.
  • the thicknesses of the films can usually have a value comprised between 100 nanometers and 1 mm.
  • the lower film -2- must have a thickness of about 300 to 500 nanometers, preferably about 400 nanometers, and that of upper film -7- a thickness of 100 to 300 nanometers, preferably about 200 nanometers.
  • the welding press -6c- comprises welding and pre-cutting strips -6h- (see Figures 19 and 21 ) emerging downwards from the lower face of an upper welding tool -6h- (see Figures 1 and 19 ) in correspondence with the areas to be welded in the contour of the packages -8- which will subsequently be made individual, as well as a lower welding tool-6i- (see Figure 20 ).
  • the welding and pre-cutting strips -6h- comprise an outer blade part -6i-exterior and an inner horizontal planar part -6j-, with a width of for example 04-05 nanometers.
  • the cutting edge of the blade -6h- is not very sharp and has a height-e-considerably lower than the thickness of the lower film -2- and the upper film -7-.
  • the blade -6i- thus allows obtaining a pre-cut in the form of a weakening line weak enough to allow the automatic separation of the finished packages -8- from the films -2,7- in the unitary separation station -9-, obtaining an efficient welding of the upper film -7- in the lower film -2-, as well as an attachment of the packages -8- to the films -2,7- strong enough so as to not be detached therefrom before reaching the unitary separation station -9-.
  • the welding and pre-cutting strips -6h- must be adapted, in terms of the length of the blade -6i-, to the thickness of the films used to manufacture the packages -8-.
  • the assembly of the films -2,7- with the preformed packages -8- moves forward to a hanging hole cutting station -14- in which a hanging hole -11-, such as, for example, a "Eurolock” type hole, is made in an area of the preformed packages -8- different from the welding area and different from that occupied by the receptacle.
  • a hanging hole -11- such as, for example, a "Eurolock” type hole
  • the groups of preformed packages move forward from the cutting station -14- towards the unitary separation station -9- in which the preformed packages -8- are extracted from the films -2,7- by means of the action of an upper ejection tool -9a-arranged above the production line and a lower ejection tool -9b- arranged under the production line (see Figures 19 - 21 ).
  • the upper ejection tool -9a- comprises five support bars -9h- between respective two of which there are arranged respective inclined plates forming respective ejection surfaces -9e-, as well as respective suction cups -9f- emerging from the lower part through respective circular holes -9i- in the respective inclined plates.
  • the four inclined plates are attached at their respective end parts to an upper horizontal structure -91-, the lowest end parts being located at the height of the upper part of the support bars -9h-.
  • the respective upper ends of the support bars -9h- are also connected to the upper horizontal structure -91- by means of spring shock absorbers -9m-.
  • the upper horizontal structure -91- is in turn connected to an upper pneumatic actuator -9c- allowing the upper ejection tool -9a- to perform upward and downward vertical movements.
  • the lower ejection tool -9b- of the unitary separation station -9- in turn comprises a lower frame -9g- in which there is supported an upper bridge -9j- with a horizontal grill -9k- comprising four ejection openings -9d-.
  • the lower ejection tool -9b- is also vertically movable in an upward and downward direction by means of a lower pneumatic actuator (not shown in the figures) coupled to the lower frame -9g-.
  • the four inclined plates with the ejection surfaces -9e- and the four ejection openings -9d- have, in the horizontal plane, dimensions similar to those of the packages -8-, and are vertically aligned with one another.
  • the upper ejection tool -9a- and the lower ejection tool -9b- are moved vertically towards one another until the support bars -9hare supported on the crosspieces of the horizontal grill -9k-.
  • the lower pneumatic actuator stops conferring upward movement to the lower ejection tool -9b-but the upper pneumatic actuator -9c- continues thrusting the upper ejection tool -9a-such that the spring shock absorbers -9m- are gradually compressed until the ejection surfaces -9e- have entered the ejection openings -9d-, thus forcing the preformed packages -8- to be separated from the films -2,7- and to fall on the outgoing conveyor belt -15-.
  • the scraps of the films -2,7- move forwards towards the scrap winding device -10- in which a scrap reel is formed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP09382072A 2009-05-19 2009-05-19 Machine d'emballage dotée d'un système automatique pour le pliage du rabat de fermeture du paquet et procédé d'emballage Withdrawn EP2253545A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09382072A EP2253545A1 (fr) 2009-05-19 2009-05-19 Machine d'emballage dotée d'un système automatique pour le pliage du rabat de fermeture du paquet et procédé d'emballage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09382072A EP2253545A1 (fr) 2009-05-19 2009-05-19 Machine d'emballage dotée d'un système automatique pour le pliage du rabat de fermeture du paquet et procédé d'emballage

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EP09382072A Withdrawn EP2253545A1 (fr) 2009-05-19 2009-05-19 Machine d'emballage dotée d'un système automatique pour le pliage du rabat de fermeture du paquet et procédé d'emballage

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017084129A1 (fr) * 2015-11-17 2017-05-26 胡少白 Machine à emballer
WO2019144031A1 (fr) * 2018-01-18 2019-07-25 Je Matadi, Inc. Système de fabrication d'un ensemble applicateur jetable à usage unique avec une composition chimique
CN112792576A (zh) * 2020-12-09 2021-05-14 安徽优胜美新材料科技有限公司 一种板材加工生产线以及加工工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07257505A (ja) * 1994-03-23 1995-10-09 Seikosha:Kk ブリスタ包装体の組立装置
US5603203A (en) * 1993-11-10 1997-02-18 Mecaplastic Process and apparatus for handling food, chemical or pharmaceutical products, and corresponding handling trays
WO2004054886A2 (fr) * 2002-12-13 2004-07-01 Sanford Redmond, Inc. Machine de fabrication de sachet ouvert de type e-z a volet et renflement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5603203A (en) * 1993-11-10 1997-02-18 Mecaplastic Process and apparatus for handling food, chemical or pharmaceutical products, and corresponding handling trays
JPH07257505A (ja) * 1994-03-23 1995-10-09 Seikosha:Kk ブリスタ包装体の組立装置
WO2004054886A2 (fr) * 2002-12-13 2004-07-01 Sanford Redmond, Inc. Machine de fabrication de sachet ouvert de type e-z a volet et renflement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017084129A1 (fr) * 2015-11-17 2017-05-26 胡少白 Machine à emballer
US10562657B2 (en) 2015-11-17 2020-02-18 ShaoBai Hu Packaging machine
WO2019144031A1 (fr) * 2018-01-18 2019-07-25 Je Matadi, Inc. Système de fabrication d'un ensemble applicateur jetable à usage unique avec une composition chimique
CN112792576A (zh) * 2020-12-09 2021-05-14 安徽优胜美新材料科技有限公司 一种板材加工生产线以及加工工艺

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