EP2504160A1 - Système et procédé de fabrication de sacs ou de sachets - Google Patents

Système et procédé de fabrication de sacs ou de sachets

Info

Publication number
EP2504160A1
EP2504160A1 EP10790520A EP10790520A EP2504160A1 EP 2504160 A1 EP2504160 A1 EP 2504160A1 EP 10790520 A EP10790520 A EP 10790520A EP 10790520 A EP10790520 A EP 10790520A EP 2504160 A1 EP2504160 A1 EP 2504160A1
Authority
EP
European Patent Office
Prior art keywords
machines
control unit
machine
transport
production
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.)
Granted
Application number
EP10790520A
Other languages
German (de)
English (en)
Other versions
EP2504160B1 (fr
Inventor
Franz-Josef Dieckmann
Andreas Schrödter
Thomas Hawighorst
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP2504160A1 publication Critical patent/EP2504160A1/fr
Application granted granted Critical
Publication of EP2504160B1 publication Critical patent/EP2504160B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/006—Controlling; Regulating; Measuring; Safety measures
    • 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
    • B31B70/74—Auxiliary operations
    • B31B70/88—Printing; Embossing
    • 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
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/98—Delivering in stacks or bundles

Definitions

  • the invention relates to a system for producing sacks or bags, which contains at least two machines, which are associated with control components and which are connected by at least one transport and a bearing device with each other.
  • the invention relates to a method for producing sacks or bags, in which at least two machines are operated, and in which at least one transport and a storage device bag or semi-finished sacks transported between the at least two machines and / or stored between the at least two machines ,
  • Pieces of tubing are usually produced from one or more flat sheets of material, usually paper and / or plastic sheets, by first folding these sheets into a tube, wherein the overlapping edge portions are glued together with adhesive. Then the hose is separated into pieces of hose.
  • This machine for forming the hose pieces is called a tube machine.
  • Such a tube machine is disclosed in the document DE 197 04 332 A1.
  • soils are formed at one or both open ends of these pieces of tubing, in which the ends are raised to form bottom rectangles and triangular pockets.
  • CONFIRMATION COPY Parts of the Bodenrechtecke are then folded back, in part after the introduction of a Ventilzettels, and glued with adhesive. This creates a bag that can be filled.
  • inside bars and / or bottom cover sheets can be glued on to suitable places in this machine.
  • the sacks are arranged into sack stacks.
  • the palletizing machine In another machine, the palletizing machine, the sack stacks can be arranged on pallets, so that a large number of sacks can be transported away in a simple manner.
  • the documents DE 100 22 272, DE 103 09 131 and DE 10 2005 049 964 A1 show such palletizing machines.
  • machines are to be understood as meaning all machines which process or process, treat, arrange or make other changes to material, for example material webs, pieces of tubing or finished sacks.
  • the machines are assigned control components which control the functions and units necessary for the operation of the machine.
  • Such control components may be hardware elements such as a PLC (Programmable Logic Control Unit) or an IPC (Industrial PC).
  • Software code can also be part of the control components.
  • the control can be done on the basis of the requirements imposed by the operator. For example, the operating personnel can specify the production speed. In each case at least one transport or storage device is to be provided between the individual machines, which connects the machines to one another.
  • the actual production speeds of the machines are reduced by various influences.
  • the production in the tube machine must be interrupted if a roll on which the material webs are usually wound must be changed. Often, however, the replenishment is left for the floor laying machine, so that it is idle or has also stopped.
  • the machine In the first case, there is an unnecessary consumption of resources, in the second case, the machine must be restarted to the production speed, which in addition to a loss of time usually also has a so-called start-up committee (production of unusable bags or bags) result.
  • the actual throughput that occurs in practice often lags behind the maximum possible throughput.
  • the object of the present invention is therefore to propose an apparatus and a method with which the actual throughput is to be increased.
  • a control unit which is set up so that the production speeds of at least two machines can be transmitted to it and which is set up in such a way that it proposes and / or sets the production speeds of at least two machines on the basis of operating parameters of the system.
  • a control unit the production speed of at least two machines and at least one other operating parameters of the machinery, transport and / or storage devices is reported and the control unit, the production speed of at least one of the at least two machines due to the reported Suggests and / or sets values.
  • values stands for the production speed and the at least one other operating parameter.
  • the invention is based on the idea that a machine, if it is ready for production, should also be able to produce. This means that from the upstream transport and / or storage device workpieces must be accepted and / or that the machined workpieces must be removed by a subsequent transport and / or storage device.
  • the storage volume of the transport and / or storage device may therefore at no time be completely exhausted, that is, the transport and / or storage device must never be completely emptied or filled. In this case, idling or stoppage and the associated start-up committee can be avoided.
  • the control unit not only records the production speeds but also at least one further operating parameter in order to be able to react accordingly. The reaction manifests itself in the setting of suitable production speeds, so that both workpieces and free places are always available in all transport and storage devices.
  • control unit proposes and / or sets the production speed of at least one machine on the basis of the reported values of an upstream and / or downstream machine. If, for example, a roll change occurs in the hose machine, the production speed of the floor laying machine can already be correspondingly reduced in advance, so that the store fills up accordingly. Alternatively, a higher degree of filling of the storage can be achieved by the tubular machine is operated at a higher production speed in the run-up to the roll change.
  • control unit controls the production speed of at least one machine such that the level of at least one transport and / or storage device strives for a desired value. It is preferred that a machine is controlled such that the level of the subsequent transport and / or storage device strives for a desired value. Furthermore, it is advantageous if this desired value is adapted by the control unit in the course of production. Thus, in the case of an imminent reduction in the production speed of a machine, the setpoint value for the memory occupancy of the upstream transport and / or storage device can be reduced and / or the setpoint value for the memory occupancy of the downstream transport and / or storage device can be increased.
  • the setpoint can assume different numerical values. This can move between an upper limit and a lower limit, these limits being within the storage volume. These numerical values can be relative values to the maximum storage volume. Thus, the setpoints can be in the range between 10% and 90% of the maximum storage volume of the relevant transport and / or storage device. Even fixed values, for example measured in number of sacks or number of sack stacks, can form such limits. In a further embodiment of the invention, it is provided to exceed or fall short of these limits if unforeseen changes in the operating parameters occur, for example faults which lead to the stoppage of a machine.
  • the limits may be fixed or predefinable by the operating personnel or adjustable during operation. There may be narrower limits (for example, between 20% and 80%) and correspondingly larger memory reserves may be advantageous if a higher susceptibility to interference is to be feared. Likewise, more extensive limits may be advantageous, for example if the production process is very stable.
  • the control unit In addition to the production speeds, the control unit also detects at least one further operating parameter which can influence the optimum production speed.
  • These operating parameters can be divided into two parts. On the one hand, these are parameters that are recorded once, for example before the start of production of an order. These include the format of the bags, the adhesive to be used, the size of the order (order quantity), the diameter of the roller sleeves, specified cleaning or maintenance intervals, the drying time required for proper bonding, the maximum possible machine acceleration depending on the product, the maximum speed of the machine depending on the product or the maximum storage volume of the transport and / or storage devices.
  • the storage volume is specified as the number of storable pieces of tubing, bags or bags.
  • Another operating parameter may be an optimal engine speed. This parameter can be based on empirical values.
  • the maximum storage volume can be calculated from the size of the bags.
  • These values can also be entered or determined for a follow-up order during a running job, so that the control unit can already set and / or suggest the production speeds of the current order, taking into account the operating parameters of the follow-up order. For example, if necessary, changeover times will result in precipitation in the production speeds.
  • operating parameters from the current production can be recorded or calculated by the control unit. These include, for example, error messages from or faults in machine components, the current occupancy of the transport and / or storage devices, the remaining time of the order or the current diameter of the web rolls. The acquisition or calculation of the roll diameter can be used to determine the time of the next roll change and thus the next standstill of the machine. Other values can also be used for this purpose.
  • the following transport and / or storage device can be filled in good time prior to this standstill (if necessary, the specified value can be increased), in which the upstream machine is operated at a higher production speed, and / or the production speed of the subsequent machine is reduced, so that when reel change the subsequent machine can continue to produce.
  • a necessary pallet change in the palletizing machine is another operating parameter. Also in such a case the preceding transport and / or storage device can be emptied and / or the production speed of the preceding machine can be reduced.
  • the machine operator can also request shutdowns of certain periods. In current production, it can happen that a component suffers a defect which, however, is acceptable for a certain period of time without impairing the functioning of the machine. The requirement of a standstill for the elimination of this defect can be taken into account by the control unit. This then suggests or sets a time for standstill. Unpredictable, but necessary Maintenance work can also be the reason for requesting a shutdown.
  • the above-mentioned operating parameters of the current production can be further differentiated into predictable or calculable (pending changes, upcoming maintenance work, requirements of downtime) and in sudden or changing (defect, which affects the functioning of the machine) operating parameters. It is also advantageous if the control device makes at least a part of the production parameters and / or information derived therefrom visible on a display device, on which the displayed parameters of the respective system component can be assigned. Thus, an upcoming and to be performed by the operator role change can be displayed early. Operators can perform reel change without delay, which shortens the downtime of the machine in question and ultimately increases throughput.
  • control device can be set up accordingly.
  • This device can be made by programming. This programming can also be done using data carriers or modern data transmission methods such as e-mail, chatting or remote maintenance methods.
  • FIG. 1 side view of a hose machine in a system according to the invention
  • Fig. 2 is a schematic representation of the in a floor laying machine ongoing production steps
  • Fig. 3 is a schematic representation of a storage device
  • Fig. 4 view of a palletizer
  • Fig. 1 shows a hose machine 1 as part of a system according to the invention. Shown is such a machine for producing a four-ply hose. However, four layers are not limitative; hoses with more or less layers can also be produced.
  • the individual webs 6, 7 are withdrawn from successively arranged and in unwinding devices 2, 3 mounted material rolls 4, 5. Only two unwinding devices are shown.
  • the material rolls 4, 5 are rotatably mounted in frames 8, 9.
  • the withdrawn tracks 6, 7 run over guide rollers to the preference devices.
  • the webs 6, 7, 10, 11 are pulled forward by driven preferred means, each of which consists of the driven feed roller 12 and the wrap angle-increasing guide roller 13.
  • a web provided with pinholes which consists of a counterpressure roller 14 over which the drawn web runs and to which a needle roller 15 can be placed, which strips the web either over its entire width or in strips with pinholes which serves to vent the sacks made from the webs.
  • each paper web runs from the needle roller to the knife roller 16, which can be adjusted to a counter-pressure roller 17.
  • the knife roller 16 creates a transverse perforation that forms the later tear line.
  • the paper webs then run into a stand 18, in which the webs 6, 7 and 10 are provided on both sides of the transverse perforations by adhesive applicator rollers 19 with transverse adhesive strips.
  • the hose forming station 22 which essentially comprises guide elements, such as guide plates, with which the outer edges of the webs are folded over and laid one on top of the other.
  • the tube 23 thus formed now enters a tear-off device 24, in which the tube 23 tears along the transverse perforation and is separated in this way into pieces of tubing 25.
  • a tear-off device is known, for example, from EP 0 711 724 A1. From several pieces of tubing 25 26 pieces of tubing 27 are now formed in the stacking device, which are discharged via a first transport device 28.
  • the tube machine includes a plurality of rollers that can be driven.
  • further rollers may be formed as drive rollers.
  • the production speed can be measured via rotary encoders on the drive rollers (not shown) or via rotary encoders on a deflection roller.
  • the guide roller 29 includes a rotary encoder 30. It is also conceivable to measure the transport speed of a web directly.
  • the circumference of the material rolls 4 and 5 can be measured via sensors 31, 32.
  • the remaining amount of the material determined and thus the time of the latest roll change can be predetermined.
  • rotary encoders 33, 34 are available, which measure the rotational speeds of the material rolls. Taking into account the production speed, the time of the roll change can be determined.
  • a further sensor 36 determines the number of tube pieces 25 in the tube piece stack 27.
  • the data of the sensors and rotary encoders 30-34 and 36 can be made accessible to the control unit 38 via a data line 37. Further sensors and / or measuring devices at other locations of the machine are conceivable, and they would also be connected to the control unit 38 via the data line 37.
  • the control unit 38 now controls the drives via the control line 39. By way of example, it is shown that the control line 39 leads to the drive of the deflection roller 12.
  • the first transport device 28 is in terms of their transport speed of the controller 38 via a control line 40 controlled.
  • At least one occupancy sensor 41 can be provided in order to be able to determine the degree of filling of this first transport device 28.
  • FIG. 2 shows a floor laying machine 50, which is supplied with hose piece stacks 27 via the first transport device 28.
  • the first transport device 28 may consist of different elements. Thus, a plurality of transport devices can be provided.
  • Some of these may be used for vertical transport or to change the orientation of the tube pieces relative to their direction of transport.
  • one or more bearing elements may be provided, in which the hose pieces can dwell certain times. Such a bearing element is described for example in EP 1 593 614.
  • the floor laying machine 50 takes over the hose pieces 25 so that their orientation, that is the orientation of the longitudinal adhesive seam, is transverse to the transport direction.
  • the tube pieces 25 are removed individually from the tube piece stack by a separating device 51, which, as indicated in FIG. 2, can be designed as a rotary feeder.
  • An alignment and transport device 52 transports the tube pieces 25 on and at the same time ensures a good alignment of the position of the tube pieces 25th
  • a double belt conveyor 53 takes over the individual pieces of tubing 25 and conveys them to the individual processing stations, which in a known manner at one or both ends of the pieces of tubing 25 form soils. In this case, the ends are raised in a first step, so that open Bodenrechtecke arise to form lateral triangular pockets.
  • a valve leaflet 54 are glued.
  • the valve sheet and / or regions of the hose piece 25 are provided with adhesive from a so-called glue applicator.
  • the valve pad 54 are usually made of paper and are created by cutting individual pieces of the material web 55, which is provided as web roll 56 available.
  • sensors 57 and / or rotary encoder 58 may be provided at this point, which are connected via data lines 59 to the control unit 38 to ultimately determine the time of an upcoming roll change in advance can.
  • Components of the glue applicator, such as a glue reservoir, may also be equipped with sensors.
  • the control unit 38 controls via a control line 60, inter alia, the peripheral speed of the drive wheel 61 of the double belt conveyor 53 and thus the production speed of the floor laying machine 50. Also, the preferred speed of the web 55 is controlled in such, but not shown manner.
  • a bottom cover sheet 62 can be glued to reinforce the finished floor.
  • the bottom cover sheets 62 are for this purpose of a material web 63, which is provided by a web roll 64, isolated.
  • corresponding sensors, rotary encoders, data lines and / or control lines are also provided here, but this is not shown for the sake of simplicity.
  • the bags 65 produced in this way from hose pieces 25 are taken over by a second transport device 66 and transported away. Often, the sacks 65 are arranged in sheds (see FIG. 3). As can be seen in FIG. 3, the flakes are transferred by the second transport device to a so-called depositing device 67.
  • This depositing device 67 transports the sacks 65 via certain paths and thereby takes a compression of the freshly prepared soils in order to ensure a permanently strong bonding.
  • the transport distance in the storage device is relatively long to allow sufficient drying of the bond.
  • the second transport device 66 can in turn be subdivided into a plurality of transport and / or storage facilities.
  • the sacks 65 After passing through the depositing device 67, the sacks 65 reach a third transport device 68, which transports the sacks 65 to a scissor counting and separating device (not shown). This separates the scales and arranges the sacks 65 to bag stacks 69 with a certain number of bags 65 at.
  • a scanning counting and separating station is shown and explained, for example, in DE 10 2004 055 325 B4.
  • the scissor counting and separating station often still follow one or more further transport and / or storage facilities, such as those described for the area between the hose machine 1 and the floor laying machine 50.
  • individual sacks or sacks of piles are often taken randomly, subjected to quality control and then re-inserted into the transport chain. Also the time of the control can be regarded as storage.
  • FIG. 4 shows a palletizing machine 70 as an embodiment of a device with which a plurality of bags can be arranged to form a transportable bag composite.
  • Another such device is, for example, a device in which bags arranged in a scaled state are wound into rolls with the aid of bands or strips.
  • the palletizing machine 70 comprises a fourth transport device 71, which brings the sack stacks 69 into the movement range of a gripping device 72.
  • the gripping device 72 engages in each case a sack stack 69 and arranges it on a pallet 73.
  • Sensors may also be provided in the palletizing machine which monitor, for example, the current occupancy of the pallet 72.
  • the Sensors are connected to the control unit 38 via data lines, not shown.
  • the control unit 38 can propose and / or adjust the palletizing speed of the palletizing machine taking into account operating parameters and production speeds of other machines.

Landscapes

  • Making Paper Articles (AREA)

Abstract

L'invention concerne un système de fabrication de sacs ou de sachets, comportant au moins deux machines auxquelles sont affectés des composants de commande reliés par au moins un dispositif de transport et/ou de stockage. Le système comporte une unité de commande conçue pour recevoir et/ou traiter les vitesses de fabrication d'au moins deux machines, et pour définir et/ou régler la vitesse de fabrication d'au moins deux machines sur la base de paramètres de fonctionnement du système.
EP10790520.0A 2009-11-25 2010-11-24 Système et procédé de fabrication de sacs ou de sachets Active EP2504160B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009047145 2009-11-25
DE102009047362A DE102009047362B4 (de) 2009-11-25 2009-12-01 System und Verfahren zum Herstellen von Säcken oder Beuteln
PCT/EP2010/007112 WO2011063941A1 (fr) 2009-11-25 2010-11-24 Système et procédé de fabrication de sacs ou de sachets

Publications (2)

Publication Number Publication Date
EP2504160A1 true EP2504160A1 (fr) 2012-10-03
EP2504160B1 EP2504160B1 (fr) 2016-01-27

Family

ID=43927009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10790520.0A Active EP2504160B1 (fr) 2009-11-25 2010-11-24 Système et procédé de fabrication de sacs ou de sachets

Country Status (6)

Country Link
US (1) US11123941B2 (fr)
EP (1) EP2504160B1 (fr)
BR (1) BR112012012482B1 (fr)
DE (1) DE102009047362B4 (fr)
ES (1) ES2564192T3 (fr)
WO (1) WO2011063941A1 (fr)

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Also Published As

Publication number Publication date
EP2504160B1 (fr) 2016-01-27
US20120270714A1 (en) 2012-10-25
WO2011063941A1 (fr) 2011-06-03
DE102009047362B4 (de) 2013-07-04
BR112012012482B1 (pt) 2020-09-24
DE102009047362A1 (de) 2011-06-01
ES2564192T3 (es) 2016-03-18
BR112012012482A2 (pt) 2016-04-12
US11123941B2 (en) 2021-09-21

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