EP3017940B1 - Procédé et dispositif de fabrication de sacs à partir de corps de sac tubulaires - Google Patents
Procédé et dispositif de fabrication de sacs à partir de corps de sac tubulaires Download PDFInfo
- Publication number
- EP3017940B1 EP3017940B1 EP14191600.7A EP14191600A EP3017940B1 EP 3017940 B1 EP3017940 B1 EP 3017940B1 EP 14191600 A EP14191600 A EP 14191600A EP 3017940 B1 EP3017940 B1 EP 3017940B1
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- EP
- European Patent Office
- Prior art keywords
- bag bodies
- bag
- bodies
- successive
- distance
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 230000032258 transport Effects 0.000 claims description 64
- 239000004033 plastic Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 10
- 239000002985 plastic film Substances 0.000 claims description 10
- 229920006255 plastic film Polymers 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 10
- 230000001419 dependent effect Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Images
Classifications
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- 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/02—Feeding or positioning sheets, blanks or webs
- B31B70/04—Feeding sheets or blanks
-
- 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
-
- 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
- B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
-
- 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
- B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
- B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
- B31B2150/0014—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing transversally to the direction of movement
-
- 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
- B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
- B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
-
- 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
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
-
- 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
- B31B2160/00—Shape of flexible containers
- B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
-
- 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
- B31B50/046—Feeding sheets or blanks involving changing orientation or changing direction of transport
-
- 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/005—Making flexible containers, e.g. envelopes or bags involving a particular layout of the machinery or relative arrangement of its subunits
Definitions
- the invention relates to a method and an apparatus for producing sacks of tubular bag bodies, wherein the bag body preferably made of a fabric of plastic tapes or a nonwoven plastic material (eg plastic fleece) or a composite of the fabric of plastic tapes and the nonwoven plastic material or with a a plastic film connected to a network structure are produced, wherein the material optionally at least one side with at least one plastic layer and / or at least one plastic film, eg an OPP film is coated.
- the bag body preferably made of a fabric of plastic tapes or a nonwoven plastic material (eg plastic fleece) or a composite of the fabric of plastic tapes and the nonwoven plastic material or with a a plastic film connected to a network structure are produced, wherein the material optionally at least one side with at least one plastic layer and / or at least one plastic film, eg an OPP film is coated.
- the bag bodies are transported on a transport device lying flat transversely to its longitudinal extent at a transport speed in a transport direction, wherein the bag body undergo processing stations during their transport, with which at least one end portion of each bag body formed into a cross bottom and optionally a cover sheet is applied to the cross bottom.
- Chest bags also called cross-bottom bags, are sacks of parallelepiped shape, which are manufactured in bag making machines by providing tubular bag bodies whose open end portions are folded into cross bottoms. The bag bodies are guided lying flat through the clothing plant, so that two layers of the tubular bag body abut each other. For bottom formation, the two layers are separated at the end portions of the tubular bag body, and one of the two layers is folded over as a side flap by 180 ° to itself, creating an open bottom, in which the other layer forms a second side flap. By folding a layer at the end of the tubular bag body arises at the front and rear of this end portion each have a triangular corner impact. This process is called in the jargon also "Hommeteil”.
- valve sheets can be inserted (for the production of "box valve sacks" which can be filled with filler through the valve) and the final bottom configuration is made by overlapping the bottom side flaps.
- the overlapping bottom side flaps are glued together or thermally welded depending on the material of the bag body.
- bottom cover sheets can be placed on the overlapped bottom side flaps and glued or welded to them.
- tubular bag bodies are fed transversely to their longitudinal extent of a continuously moving transport device and go through their transport different processing stations, such as a bottom opening device.
- a clothing factory is in Fig. 8 shown schematically.
- the throughput of bag bodies by the Sackkonfetationierstrom essentially of the transport speed (V) the transported bag body and the rapport dependent.
- bag bodies of small width (b) resulting from the fixed repeat (x) relatively large distances (y) between the bag bodies (10), which prevent the transport potential of the Sackkonfetationieranlagen is fully utilized.
- a further disadvantage of the fixed set repeat is that hot air welders needed for attaching the ground cover sheets run empty between the successive bag bodies, whereby considerable energy in the form of hot air is released unused to the environment as a shutdown and Restarting the hot air welding devices between successive sacks for technical process reasons is not possible.
- DE1216196B discloses that the realization of the obvious idea, after the removal of the workpieces from the longitudinal conveying area to reduce the workpiece speed, which would also reduce the distance of the workpieces from each other, apart from the practice due to the complexity and increase in price of the device. It will be in DE1216196B thus discouraged explicitly from the realization of the discussed idea. It is therefore an object of the present invention to increase the throughput of bag bodies in Sackkonfetechnischieranlagen without increasing the transport speed of the bag body.
- the inventive device and the inventive method for the production of bags from tubular bag bodies are particularly suitable for processing bag bodies, consisting of a fabric of plastic tapes or a nonwoven plastic material (eg plastic fleece) or a composite of the fabric of plastic tapes and the nonwoven plastic material or a plastic film connected to a network structure, wherein the material is optionally at least one side with at least one plastic layer and / or at least one plastic film, eg an OPP film is coated.
- the bag bodies are transported lying flat transverse to their longitudinal extent at a transport speed in a transport direction, wherein formed on the bag bodies during their transport at least one end portion to a cross bottom and optionally a cover sheet is applied to the cross bottom.
- To be transported bag body are moved by at least one transfer device in relation to transported at transport speed bag body by a feed distance in the transport direction and then moved at the transport speed, wherein the movement of the bag body on the feed path at least partially takes place with a transfer speed which is greater than the transport speed.
- the length of the repeat is adjusted and can be adjusted to a predefined distance between adjacent bag bodies by the feed distance is calculated and controlled in dependence on the width of the bag body so that the predefined distance between successive bag bodies or between the cover sheets sequentially Sack body results. So that the device according to the invention can be operated automatically, the width of the bag body is detected by a sensor.
- the speed with which bag body can be moved on the feed line be controlled according to a speed profile.
- the speed profile includes accelerating to the transfer speed and, after a length of time dependent on the length of the feed distance, braking to the transport speed.
- the bag making can be further improved and automated even higher, if based on the detected bag width and the predefined distance of successive bag body, the cover sheet nominal position and the desired length of the cover sheets and optionally calculates the desired valve leaf position of valve leaves and using this information cover sheets are cut to the desired length and applied to the bag body when they have reached the cover sheet set position, and optionally the valve sheets are applied to the bag body when they have reached the desired valve leaf position ,
- the transfer device preferably has holding means for gripping, holding and releasing the bag body, wherein the holding means can be designed as mechanical grippers and / or vacuum cups.
- a controller controls the times at which the holding means grasp and release the bag bodies. If at least two holding means are provided which are movable independently of one another, it is possible by means of suitable control to align misaligned bag bodies by different movements of the holding means. Misalignments may e.g. caused when cutting the bag body.
- the device 1 comprises a transport device 2, which transports the bag body 10 lying flat transversely to its longitudinal extension L at a transport speed V in a transport direction T.
- the bag bodies have a front side edge 11 and a rear side edge 12, between which the width b is measured.
- Guide rails 3 hold the bag body 10 in the correct position on the Transport device firmly.
- the bag bodies 10 are made of a stretched plastic tape fabric or a nonwoven plastic material (eg, nonwoven fabric) or a composite of the fabric of plastic tape and the nonwoven plastic material or a plastic film bonded to a net structure, and are preferably provided with a coating of a polymer , Composites may also include plastic films, paper sheets or metal foils.
- the coating preferably has a layer of an OPP film, furthermore printing layers, etc.
- a hose 10a is supplied from a storage device, not shown, or an inline hose-forming machine to a cross-cutting device 8, which cuts tubular bag bodies 10 from the hose 10a and feeds them to the transfer device 4 described in detail below.
- the bag body 10 passes through processing stations with which at least one end portion 13 of each bag body 10 is formed into a cross bottom and a cover sheet 19 is applied to the cross bottom.
- processing stations described below are formed. In other embodiments of the invention, however, not all of these processing stations are realized, or other processing stations (quality inspection, printing equipment, etc.) may be provided.
- a folding station 30 serves to fold the end portions 13 of the bag body 10 from the flat state about the guide rails 3 upwards.
- a bottom opening station 40 is used to pull the two folded-up layers of the end portions 13 of the bag body 10 from each other and fold in opposite directions by 90 °, creating an open bottom 17 is formed, which has two side flaps 15, 16, of which a side flap 16 to 180 ° is folded back onto the wall of the bag body 10. By folding over the side flaps 15, 16 is formed at the front and rear of the open bottom 17 each have a triangular Eckeinschlag 14.
- a valve sheet 18 is placed on the open bottom 17 of the bag body 10 and optionally by gluing or thermal welding fixed. Thereafter, in a bottom forming station 60, the final cross-bottom configuration is made by wrapping the bottom side flaps 15, 16, while the triangular envelopes 14 are reduced in size at the front and rear bottom end portions, but are retained in their triangular shape. Since the side flaps 15, 16 are folded over at mutually parallel folding edges, have the triangular envelopes in the shape of an isosceles triangle whose Hypotenuse runs between endpoints of the folded edges. The embossed bottom side flaps 15, 16 are glued together depending on the material of the bag body or thermally welded when they overlap each other.
- a cover sheet applicator station 70 for applying a bottom cover sheet 19 to the embossed bottom side flaps 15, 16 and a hot air welding station 80 for fixing the bottom cover sheet 19 on the embossed bottom side flaps 15, 16 are also provided.
- the topsheet application station 70 and the welding station 80 may be integrated with one another.
- a gluing station can also be provided.
- the device 1 has a transfer device 4, the bag body 10 are supplied either transversely or longitudinally.
- the transfer device 4 transfers the supplied bag body 10 in transverse arrangement to the transport device 2 by means of a movement in the transport direction T.
- the transfer device 4 moves the bag body 10 to be transported with respect to transporting speed V conveyed bag body by a feed distance .DELTA.y in the transport direction T and then passes them on the transport device 2, wherein the transfer device 4, the bag body 10 moves in the transport direction T at least partially with a transfer speed U, which is greater than the transport speed V.
- Feed distance ⁇ y Sackk O ⁇ distance y 1 - Sackk O ⁇ distance y 2
- the throughput of bag bodies 10 can be increased by the device 1 at a constant transport speed T.
- the transfer device 4 holding means 4b for gripping, holding and releasing the bag body have.
- the Holding means 4b formed as a mechanical gripper, which are fixed to belt pulleys 4c, 4d endless belt 4a.
- One of the pulleys 4c is driven by a drive 7 which is (automatically) controlled by a controller 6 which can also drive the holding means 4b.
- the holding means 4b may also be designed as vacuum cups.
- the controller 6 the feed distance .DELTA.y can be calculated and changed. Further, the controller 6 can control the speed of the drive 7 and controls the timings at which the holding means 4b grip and release the bag bodies 10.
- the processing stations 30, 40, 50, 60, 70, 80 provided in the apparatus 1 are also individual drives controlled by the control 6, for example. Switches and actuators equipped to respond to the variable bag distances.
- the connection of the controller 6 with the transfer device 4 and the processing stations 30, 40, 50, 60, 70, 80 in the FIGS. 1 and 2 not shown. This connection is either point-to-point (serial or parallel), or a network connection.
- the controller 6 contains a computer, with which the feed distance ⁇ y can be calculated as a function of the width (b) of the bag body 10 such that a predefined distance y2 between successive bag bodies 10, 10 or between the cover sheets of successive bag bodies results (distance y3, please refer Fig. 1 ).
- the controller 6 controls the transfer device 4 in accordance with the calculated feed distance .DELTA.y.
- a sensor 5 for detecting the width b of the bag body 10 is provided.
- the sensor 5 sends the detected width b to the controller 6.
- the sensor 5 may be camera-supported, for example, or detect the width b by means of light barriers.
- the feed distance .DELTA.y is varied as a function of the bag body width b and thus changes the length of the repeat.
- the distance y2 between the bag bodies 10 can thus be kept constant even with different bag body widths b.
- the controller 6 controls the speed with which the transfer device 4 moves the bag bodies in the transporting direction T according to a speed profile.
- This speed profile includes the acceleration of the recorded bag body, which are supplied to the transfer device 4 at a speed lying between 0 and the transport speed V, to the transfer speed U and after a dependent of the length of the feed distance .DELTA.y the time to decelerate to the transport speed V.
- the controller 6 based on the detected bag width b and the predefined distance y2 successive bag body calculate the target position and target length of the cover sheet 19 and optionally the desired position of a valve sheet 18 and based on this information, the cover sheet application station 70 so that they a cover sheet 19 is cut according to the desired length and applied to the bag body 10 when it has reached the desired position.
- the controller 6 controls the valve sheet insertion station 50 so that it applies a valve sheet 18 to the bag body 10 when it has reached the desired position.
- the length of the cover sheets mathematically results from the sack thickness determining measure by which the bottom side flaps 15, 16 are taken, since this measure the length of the fold edges, thus the length of the crossbeam and thus the length of the cover sheet 19th pretends.
- the transfer device 4 By means of the transfer device 4 according to the invention, it is also possible to react to variations in width of the supplied bag bodies 10, and consequently to increase the accuracy at the following processing stations and thus to optimize the quality of the bags.
- the feed distance ⁇ y is selected so that a predefined distance y2 between successive bag bodies between 0 (ie the bag body are flush, see Fig. 3 ) and 5 cm (see Fig. 4 ).
- y2 the distance of the bag body from each other, the shorter the time in which, for example, the hot air welding station 80 gives off its thermal energy unused to the environment.
- this distance is further shortened by adjacent bag body 10, 10 are arranged overlapping in the amount of height h of the triangular envelopes. In mathematical terms, this results in a distance of -h between adjacent bag bodies.
- the distance between the cover sheets 19 adjacent bag body 10, 10 to 0, that is to arrange them flush can in Extreme case (see Fig.
- the overlap width of adjacent bag bodies 10, 10 can be selected as twice the height h of the triangular corner impact, resulting in a distance of -2h.
- the extremely reduced distances between adjacent bag bodies 10, 10, as in Fig. 5 and Fig. 6 shown are not suitable for each subsequent processing station.
- the bag body 10 from the transfer station 4 in Fig. 1 even at the transfer station are pushed together so far that they overlap, folding the end portions 13 upwards at the folding station 30 and the opening of the end portions 13 at the bottom opening station 40 would not be possible.
- extremely close distances between the adjacent bag bodies also have the advantages described above.
- the present invention therefore also provides that the distances between adjacent bag bodies 10, 10 are reduced in several stages by arranging a plurality of transfer devices 4 according to the invention along the transport device 2.
- a second transfer station 4 can be arranged with which the distance y2 between adjacent bag bodies 10, 10 is reduced to -h.
- the distance may also be reduced stepwise with a second transfer station to the bottom opening station 40 and a third transfer station 4 directly in front of the cover sheet application station 70.
- Cover sheet applicators are equipped with individual drives to respond to the variable bag distances.
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- Making Paper Articles (AREA)
Claims (17)
- Dispositif (1) de fabrication de sacs à partir de corps de sac tubulaires (10), dans lequel les corps de sac sont fabriqués de préférence à partir d'un tissu de bandelettes de plastique ou d'un matériau synthétique non tissé (p. ex. de feutre synthétique) ou d'une association de tissu de bandelettes de plastique et de matériau synthétique non tissé ou d'un film de plastique associé à une structure réticulaire, le matériau étant recouvert de manière facultative au moins sur une face par au moins une couche de plastique et/ou au moins un film de plastique, p. ex. un film OPP,
avec au moins un dispositif de transport (2) qui transporte les corps de sac posés à plat perpendiculairement à leur extension longitudinale (L) à une vitesse de transport (V) dans une direction de transport (T), les corps de sac traversant pendant leur transport des stations de traitement (30, 40, 50, 60, 70, 80) dans lesquelles au moins une zone terminale (13) de chaque corps de sac est transformée en un fond croisé et, de manière facultative, une feuille de couverture (19) est posée sur le fond croisé, caractérisé par un dispositif de transmission (4) qui déplace des corps de sac (10) à transporter par le dispositif de transport par rapport à des corps de sac transportés à la vitesse de transport (V), sur un trajet d'avancée (Δy) dans la direction de transport (T) et les transmet au dispositif de transport (2), ce dispositif de transfert (4) déplaçant les corps de sac dans la direction de transport (T) au moins partiellement à une vitesse de transmission (U) qui est supérieure à la vitesse de transport (V). - Dispositif selon la revendication 1, caractérisé en ce que le dispositif de transmission (4) présente des moyens de retenue (4b) pour attraper, maintenir et libérer les corps de sac, les moyens de retenue comprenant de préférence des préhenseurs mécaniques et/ou des aspirateurs à vide.
- Dispositif selon la revendication 1 ou 2, caractérisé par une commande (6) qui calcule le trajet d'avancée (Δy) en fonction de la largeur (b) des corps de sac de sorte à obtenir une distance prédéfinie (y2, y3) entre les corps de sac successifs ou entre les feuilles de couverture (19) des corps de sac (10) successifs, et qui commande le dispositif de transmission (4) en fonction du trajet d'avancée (Δy) calculé.
- Dispositif selon la revendication 3, caractérisé par un capteur (5) pour détecter la largeur (b) des corps de sac, qui transmet la largeur détectée à la commande (6).
- Dispositif selon les revendications 3 et 4 en liaison avec la revendication 2, caractérisé en ce que la commande (6) contrôle les moments où les moyens de retenue (4b) attrapent et lâchent les corps de sac.
- Dispositif selon une des revendications 3 à 5, caractérisé en ce que la commande (6) contrôle la vitesse à laquelle le dispositif de transmission (4) déplace les corps de sac dans la direction de transport (T), selon un profil de vitesse qui comprend l'accélération à la vitesse de transmission (U) et, après un laps de temps dépendant du trajet d'avancée (Δy), le ralentissement à la vitesse de transport (V).
- Dispositif selon une des revendications 4 à 6, caractérisé en ce que la commande (6) calcule à l'aide de la largeur de sac (b) détectée et de la distance prédéfinie (y2) entre les corps de sac successifs, la position nominale et la longueur nominale de la feuille de couverture (19), ainsi que, de manière facultative, la position nominale d'une feuille à valve (18) et, à l'aide de ces informations, commande une station de pose de feuilles de couverture (70) afin qu'elle découpe une feuille de couverture (19) conformément à la longueur nominale et la pose sur le corps de sac lorsqu'il a atteint la position nominale de la feuille de couverture, et, de manière facultative, commande une station d'insertion de feuilles à valve (50) afin qu'elle pose une feuille à valve (18) sur le corps de sac lorsqu'il a atteint la position nominale de la feuille à valve.
- Dispositif selon une des revendications précédentes, caractérisé en ce que le trajet d'avancée (Δy) est choisi de sorte à obtenir une distance prédéfinie (y2) de 0 à 5 cm entre les corps de sac successifs.
- Dispositif selon une des revendications 1 à 7, caractérisé en ce que le trajet d'avancée (Δy) est choisi de sorte à ce que les corps de sac successifs se chevauchent, la largeur du chevauchement correspondant de préférence à la hauteur (h) ou au double de la hauteur du rabat de coin triangulaire (14) qui apparaît lorsque les rabats latéraux du fond (15, 16) sont pliés, dans ce dernier cas une section longitudinale (10b) d'au moins un des corps de sacs successifs orientée vers l'autre corps de sac et dotée d'une largeur qui correspond à la hauteur (h) du rabat de coin étant rabattue.
- Dispositif selon une des revendications 2 à 9, caractérisé en ce que sont prévus au moins deux moyens de retenue (4b) qui sont mobiles indépendamment l'un de l'autre.
- Procédé de fabrication de sacs à partir de corps de sac tubulaires (10), dans lequel les corps de sac sont fabriqués de préférence à partir d'un tissu de bandelettes de plastique ou d'un matériau synthétique non tissé (p. ex. de feutre synthétique) ou d'une association de tissu de bandelettes de plastique et de matériau synthétique non tissé ou d'un film de plastique associé à une structure réticulaire, le matériau étant recouvert de manière facultative au moins sur une face par au moins une couche de plastique et/ou au moins un film de plastique, p. ex. un film OPP,
dans lequel les corps de sac sont transportés à plat perpendiculairement à leur extension longitudinale (L) à une vitesse de transport (V) dans une direction de transport (T), au moins une zone terminale (13) des corps de sac étant transformée pendant leur transport en un fond croisé et, de manière facultative, une feuille de couverture (19) étant posée sur le fond croisé,
caractérisé en ce que des corps de sac (10) à transporter par rapport à des corps de sac transportés à la vitesse de transport (V), sont déplacés sur un trajet d'avancée (Δy) dans la direction de transport (T) et ensuite déplacés à la vitesse de transport (V), le déplacement des corps de sac sur le trajet d'avancée (Δy) se faisant au moins partiellement à une vitesse de transmission (U) qui est supérieure à la vitesse de transport (V). - Procédé selon la revendication 11, caractérisé en ce que le trajet d'avancée (Δy) est calculé en fonction de la largeur (b) des corps de sac de sorte à obtenir une distance prédéfinie (y2, y3) entre les corps de sac (10) successifs ou entre les feuilles de couverture (19) des corps de sac successifs, et que le déplacement des corps de sac est commandé en fonction du trajet d'avancée (Δy) calculé.
- Procédé selon la revendication 12, caractérisé en ce que la largeur (b) des corps de sac est détectée par un capteur (5).
- Procédé selon une des revendications 11 à 13, caractérisé en ce que la vitesse à laquelle les corps de sac sont déplacés sur le trajet d'avancée (Δy) est commandée selon un profil de vitesse qui comprend l'accélération à la vitesse de transmission (U) et, après un laps de temps dépendant du trajet d'avancée (Δy), le ralentissement à la vitesse de transport (V).
- Procédé selon la revendication 13 ou 14, caractérisé en ce que la position nominale et la longueur nominale des feuilles de couverture (19), ainsi que, de manière facultative, la position nominale de feuilles à valve (18) sont calculées à l'aide de la largeur de sac (b) détectée et de la distance prédéfinie (y2) entre les corps de sac successifs, et, qu'à l'aide de ces informations, les feuilles de couverture (19) sont découpées conformément à la longueur nominale et posées sur les corps de sac (10) lorsqu'ils ont atteint la position nominale des feuilles de couverture, et, de manière facultative, les feuilles à valve (18) sont posées sur les corps de sac lorsqu'ils ont atteint la position nominale des feuilles à valve.
- Procédé selon une des revendications 11 à 15, caractérisé en ce que le trajet d'avancée (Δy) est choisi de sorte à obtenir une distance prédéfinie (y2) de 0 à 5 cm entre les corps de sac successifs.
- Procédé selon une des revendications 11 à 15, caractérisé en ce que le trajet d'avancée (Δy) est choisi de sorte à ce que les corps de sac successifs se chevauchent, la largeur du chevauchement correspondant de préférence à la hauteur (h) ou au double de la hauteur du rabat de coin triangulaire (14) qui apparaît lorsque les rabats latéraux du fond (15, 16) sont pliés, dans ce dernier cas une section longitudinale (10b) d'au moins un des corps de sacs successifs orientée vers l'autre corps de sac et dotée d'une largeur qui correspond à la hauteur (h) du rabat de coin étant rabattue.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14191600.7A EP3017940B1 (fr) | 2014-11-04 | 2014-11-04 | Procédé et dispositif de fabrication de sacs à partir de corps de sac tubulaires |
CN201580059770.6A CN107073862B (zh) | 2014-11-04 | 2015-11-02 | 用于从管状袋体生产袋子的方法和装置 |
PCT/EP2015/075409 WO2016071261A1 (fr) | 2014-11-04 | 2015-11-02 | Procédé et dispositif de fabrication de sacs à partir de corps de sac tubulaires |
BR112017007870-8A BR112017007870B1 (pt) | 2014-11-04 | 2015-11-02 | Dispositivo e método para produzir sacos a partir de corpos de saco tubulares |
CN201910447922.XA CN110154448B (zh) | 2014-11-04 | 2015-11-02 | 用于从管状袋体生产袋子的方法和装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP14191600.7A EP3017940B1 (fr) | 2014-11-04 | 2014-11-04 | Procédé et dispositif de fabrication de sacs à partir de corps de sac tubulaires |
Publications (2)
Publication Number | Publication Date |
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EP3017940A1 EP3017940A1 (fr) | 2016-05-11 |
EP3017940B1 true EP3017940B1 (fr) | 2017-09-13 |
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EP14191600.7A Active EP3017940B1 (fr) | 2014-11-04 | 2014-11-04 | Procédé et dispositif de fabrication de sacs à partir de corps de sac tubulaires |
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Country | Link |
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EP (1) | EP3017940B1 (fr) |
CN (2) | CN107073862B (fr) |
BR (1) | BR112017007870B1 (fr) |
WO (1) | WO2016071261A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2022175766A1 (fr) * | 2021-02-19 | 2022-08-25 | Lohia Corp Limited | Système et procédé de transfert de pièces découpées de matériau en bande tournant les angles |
DE102021134238B3 (de) | 2021-12-22 | 2023-05-04 | Mondi Ag | Verfahren zum Herstellen von Papiersäcken und Papiersäcke |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL3498624T3 (pl) * | 2017-12-14 | 2021-04-06 | Starlinger & Co Gesellschaft M.B.H. | Worek na materiał sypki |
EP3845372A4 (fr) * | 2018-09-19 | 2022-10-26 | Fuji Seal International, Inc. | Procédé de fabrication et dispositif de fabrication d'un récipient de type poche |
EP3670171B1 (fr) * | 2018-12-17 | 2020-12-09 | Starlinger & Co Gesellschaft m.b.H. | Dispositif et procédé d'application de feuilles de couverture sur des extrémités préformées à fonds croisés de troncons de tube |
CN110385891B (zh) * | 2019-07-04 | 2021-07-20 | 河北盛世锦唐包装有限公司 | 一种新型方底阀口袋制袋机 |
WO2021038387A1 (fr) * | 2019-08-24 | 2021-03-04 | Lohia Corp Limited | Procédé et appareil de formation de sac |
CN111619162B (zh) * | 2020-04-16 | 2021-08-20 | 西安市洁美塑业有限责任公司 | 一种阀口袋生产用热粘封底机 |
AT524968B1 (de) * | 2021-04-29 | 2022-12-15 | Starlinger & Co Gmbh | Vorrichtung und Verfahren zur Herstellung von Säcken aus Schlauchstücken |
Citations (1)
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WO2015032486A1 (fr) | 2013-09-04 | 2015-03-12 | Windmöller & Hölscher Kg | Procédé et dispositif de fabrication de sacs à fond croisé |
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DE1216196B (de) * | 1963-10-28 | 1966-05-05 | Windmoeller & Hoelscher | Verfahren und Vorrichtung zum UEberfuehren von zu Saecken zu verarbeitenden Schlauchabschnitten aus der Laengs- in die Querfoerderung |
SE346499B (fr) * | 1970-12-14 | 1972-07-10 | Orebro Pappersbruks Ab | |
DE2606391A1 (de) * | 1976-02-18 | 1977-08-25 | Wilhelmstal Werke Gmbh | Transportbahn, insbesondere an maschinen zum herstellen von papiersaecken |
EP0187351B1 (fr) * | 1985-01-04 | 1989-03-15 | Librawerk Pelz & Nagel GmbH & Co. KG,i.K. | Dispositif à saisir des éléments individuels d'un tissu, dépliés et de préférence fabriqués en plastique |
CZ289183B6 (cs) | 1995-01-25 | 2001-11-14 | Windmöller & Hölscher | Zařízení na vytahování konců plochých hadicových odřezků |
DE50109966D1 (de) * | 2001-07-16 | 2006-07-06 | Grapha Holding Ag | Anordnung zum Bilden eines dritten Stromes aus einem ersten und einem zweiten Strom aus Druckprodukten |
DE102008017445A1 (de) * | 2008-04-03 | 2009-10-15 | Windmöller & Hölscher Kg | Vorrichtung und Verfahren zur Herstellung von Säcken |
DE102008017442B4 (de) * | 2008-04-03 | 2013-01-17 | Windmöller & Hölscher Kg | Vorrichtung und Verfahren zur Herstellung von Säcken, welche Gewebe aus gereckten Kunststoffbändchen umfassen |
DE102008017443B4 (de) * | 2008-04-03 | 2014-05-28 | Windmöller & Hölscher Kg | Vorrichtung und Verfahren zur Herstellung von Säcken aus Schlauchstücken |
DE102009000893B4 (de) * | 2008-07-31 | 2015-03-19 | Windmöller & Hölscher Kg | Verfahren und Vorrichtung zum Transport von flachen Werkstücken |
EP2383109B1 (fr) * | 2008-11-13 | 2017-06-14 | Totani Corporation | Machine à fabriquer des sacs |
EP2441574B1 (fr) | 2010-10-14 | 2013-05-15 | Starlinger & Co Gesellschaft m.b.H. | Procédé et dispositif de formation de fonds ouverts sur des zones d'extrémité de corps de sachets tubulaires |
EP2711166B1 (fr) | 2012-09-24 | 2016-07-27 | Starlinger & Co. Gesellschaft m.b.H. | Procédé et dispositif destinés au transport de pièces à usiner plates |
-
2014
- 2014-11-04 EP EP14191600.7A patent/EP3017940B1/fr active Active
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2015
- 2015-11-02 BR BR112017007870-8A patent/BR112017007870B1/pt active IP Right Grant
- 2015-11-02 CN CN201580059770.6A patent/CN107073862B/zh active Active
- 2015-11-02 CN CN201910447922.XA patent/CN110154448B/zh active Active
- 2015-11-02 WO PCT/EP2015/075409 patent/WO2016071261A1/fr active Application Filing
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WO2015032486A1 (fr) | 2013-09-04 | 2015-03-12 | Windmöller & Hölscher Kg | Procédé et dispositif de fabrication de sacs à fond croisé |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2022175766A1 (fr) * | 2021-02-19 | 2022-08-25 | Lohia Corp Limited | Système et procédé de transfert de pièces découpées de matériau en bande tournant les angles |
DE102021134238B3 (de) | 2021-12-22 | 2023-05-04 | Mondi Ag | Verfahren zum Herstellen von Papiersäcken und Papiersäcke |
Also Published As
Publication number | Publication date |
---|---|
WO2016071261A1 (fr) | 2016-05-12 |
CN110154448A (zh) | 2019-08-23 |
CN107073862B (zh) | 2019-06-21 |
CN107073862A (zh) | 2017-08-18 |
BR112017007870A2 (pt) | 2018-01-23 |
EP3017940A1 (fr) | 2016-05-11 |
CN110154448B (zh) | 2022-01-21 |
BR112017007870B1 (pt) | 2022-02-01 |
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