EP3218178B1 - Vorrichtung zum maschinellen fertigen eines füllmaterialerzeugnisses - Google Patents

Vorrichtung zum maschinellen fertigen eines füllmaterialerzeugnisses Download PDF

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Publication number
EP3218178B1
EP3218178B1 EP15791567.9A EP15791567A EP3218178B1 EP 3218178 B1 EP3218178 B1 EP 3218178B1 EP 15791567 A EP15791567 A EP 15791567A EP 3218178 B1 EP3218178 B1 EP 3218178B1
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EP
European Patent Office
Prior art keywords
conveyor
strand
conveying
removal
filling material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15791567.9A
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German (de)
English (en)
French (fr)
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EP3218178A1 (de
Inventor
Bastian Schalk
Christoph Engemann
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.)
Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Original Assignee
Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH filed Critical Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Priority to EP21207746.5A priority Critical patent/EP3974169A1/de
Publication of EP3218178A1 publication Critical patent/EP3218178A1/de
Application granted granted Critical
Publication of EP3218178B1 publication Critical patent/EP3218178B1/de
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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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • B26D1/18—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage
    • B26D1/185—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B26F1/20—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material with tools carried by a rotating drum or similar support
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/0043—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material
    • B31D5/0052—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material involving rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/06—Perforating by punching, e.g. with relatively-reciprocating punch and bed with punching tools moving with the work
    • B26F1/08—Perforating by punching, e.g. with relatively-reciprocating punch and bed with punching tools moving with the work wherein the tools are carried by, and in operation move relative to, a rotative drum or similar support
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0047—Feeding, guiding or shaping the material
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0058—Cutting; Individualising the final products
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/007—Delivering

Definitions

  • the invention relates to a device for mechanically manufacturing a filling material product from a single-ply or multi-ply continuous paper web, such as a packaging material manufacturing machine.
  • Generic filling material production devices are set up, for example, in logistics centers as a portable, mobile unit in order to provide cushioning material made to length when packaging an object.
  • the padding material is obtained from a paper web roll that is space-saving compared to the padding material, in particular a recycled paper roll, or from a stacked recycled paper web. To produce the padding material, the paper web is pulled off a roll and shaped in such a way that air pockets are formed, which cause cushioning between the item to be packaged and the outer packaging.
  • the items are stowed using standardized packaging processes and in packaging of standardized sizes. It is important that any filling material that may be required is always available in the same padding quality and predefined three-dimensional dimensions in order to enable an efficient workflow and reduce logistics costs.
  • a known device for machining a three-dimensional packaging product or filling material product which is used in the technical field described above, is in DE 10 2012 018 941 A1 described.
  • the known production device creates a filling material product from a paper web material that is prefabricated in terms of width, height and length. For this purpose, a paper web is fed to the known device in a conveying direction and the paper web is then formed into a three-dimensional strand of filling material in a deformation station. Subsequently, in the conveying direction, filling material products of a predefined length are cut off from the filling material strand by a rotary cutter.
  • the object of the invention is to overcome the disadvantages of the prior art, in particular to provide a device for the mechanical manufacture of a filling material product which has a high supply speed with a low probability of material jamming and also meets high safety requirements.
  • a device for the machine manufacture of a filling material product from a single or multi-ply continuous paper web comprises a feed conveyor for drawing the paper web into the device, whereby a conveying direction is defined, and a cutting device for cutting the filling material product from a three-dimensional filling material product strand formed from the paper web in the device.
  • the cutting-to-length device is followed by a removal device in the conveying direction, which transports the separated filling material product away from the cutting-to-length device.
  • a collision of the trailing string of filling material with the string of filling material is avoided by transporting the filling material product away immediately at the moment of separation from the trailing string of filling material.
  • a paper jam following the lengthening device is reliably ruled out.
  • the delivery speed of the production device could be significantly increased and the maintenance times significantly reduced. Maintenance interventions due to a conveyor jam in the after-run of the cutting to length device were reduced to a negligible level.
  • the removal device forms an effective protection against reaching into the area of the cutting device of the production device through the output opening due to its subsequent arrangement in the conveying flow relative to the cutting device, without additional design measures being necessary.
  • the production device preferably works fully automatically in such a way that one or more filling material products are produced at the user's request and delivered by the device, in particular without operator intervention being necessary.
  • the paper web fed to the device is in particular essentially two-dimensional, with specified width and length dimensions, with the length dimension in particular exceeding the width dimension many times over, and a negligible height dimension represented by the paper web thickness.
  • the device comprises a paper web receptacle from which the paper web is fed into the device.
  • the paper web can be held in reserve as a roll and/or stack.
  • the infeed applies driving forces to the paper web in a predefined conveying direction.
  • the conveying direction coincides with a main extension direction of the manufacturing device, in particular a housing or a housing support of the manufacturing device.
  • the two-dimensional paper web is formed into a three-dimensional strand of filling material.
  • the production device has a tapering conveying channel. In the conveying channel, the longitudinal edges of the paper web are turned over towards the middle of the paper web in order to form air gaps.
  • the manufacturing device has embossing wheels which deform the paper web in order to form a three-dimensional strand of filling material.
  • the embossing wheels transmit driving forces to the paper web.
  • the strand of filling material runs into the cutting device, which in particular cuts off a section of the strand of filling material at predefined time and/or length intervals. It is clear that too the cutting-to-length device can further shape the strand of filling material and/or can apply drive forces to the strand of filling material.
  • the removal device connected to the lengthening device imparts drive forces to the filling material product in the conveying direction or in a direction which has a predominant directional component in the conveying direction in order to remove the filling material product from the working area of the lengthening device.
  • the removal device drives the separated filling material product towards and/or through a delivery opening in the production device, so that the filling material product can be used further by an operator.
  • the removal device transfers drive forces to the strand of filling material at least immediately before the cutting-to-length device separates the product from the strand of filling material.
  • the removal device directly adjoins the cutting-to-length device in the conveying direction.
  • a conveying speed communicated to the filling material product and/or the strand of filling material by the removal device is equal to or greater than the conveying speed communicated to the paper web by the infeed.
  • the feed determines a feed rate at which the paper web is fed to the production device and the cutting device.
  • the removal device engages in the paper web that has been formed into a strand of filling material and conveys it further in the conveying direction at a conveying speed that corresponds at least to the feed speed. The result of this is that the strand of filling material is held and/or guided both by the infeed and the outfeed, at least at the moment of separation.
  • the cutting-to-length device is matched to the removal device and/or the infeed in such a way that the strand of filling material is already guided before it is cut off.
  • the removal speed which is at least the same as the delivery speed, also ensures that after the filling material product has been cut off, the leading edge of the filling material strand from the delivery conveyor and/or the cutting-to-length device reaches the driving force-influenced area, in particular the engagement area of the removal device, without this having a trailing short edge of the fill material product comes into contact.
  • the infeed and/or the removal device are synchronized with the cutting device in such a way that before and/or during the cutting of the filling material product the infeed and the removal device communicate conveying forces to the filling material strand.
  • conveying forces can be imparted to the strand of filling material and/or the paper web or the filling material product in a non-positive manner, such as by friction or toothing, or without contact, such as by the application of compressed air.
  • the cutting-to-length device separates the strand of filling material, which is running through the cutting-to-length device at a conveying speed generated by the infeed and/or the removal device, in a timely manner.
  • the (feed) conveying speed is constant before and during and/or after the separation.
  • the separation of the filling material product thus takes place in the conveying flow without loss of time.
  • the infeed, the removal device and the cutting-to-length device have initial states and/or initial positions that are coordinated with one another, so that during a first run through a preceding paper web section, the cutting-to-length device separates a first filling material product from the shaped filling material strand precisely immediately after the removal device has cut the beginning of the preceding filling material strand conveying driving forces for the first time.
  • the removal device is controlled synchronously with the cutting-to-length device in such a way that a filling material product is always separated from the filling material strand as soon as the removal device transmits removal drive forces to a leading edge of the filling material strand.
  • the infeed and/or the removal device and the cutting-to-length device are matched to one another in such a way that the strand of filling material is placed under tensile stress, in particular when it is cut off.
  • the removal device communicates to a leading edge of the strand of filling material and/or the strand of filling material a (removal) conveying speed that is preferably slightly higher, for example 1 to 10% higher, than the conveying speed. In particular, the removal speed is only increased shortly before and/or during the separation of the filling material product.
  • a distance between a point of engagement of the feed into the paper web and a point of engagement of the removal device in the strand of filling material is temporarily increased.
  • a strand of filling material under a slight tension allows exact length tailoring. If cutting tools are used for cutting, these are subject to less wear.
  • the device has a drive gear unit, which controls and/or drives the infeed and/or the removal device in such a way that after the separation of a filling material product, the conveying of the strand of filling material is continued until an edge of the strand of filling material that is leading in the conveying direction engages comes with the discharge device.
  • the drive gear unit has a sensor system for detecting drive forces and/or a timer that measures whether the leading edge of the strand of filling material has come into engagement with the removal device. After a filling material product has been produced, the drive gear unit continues to run, in particular without the intervention of an operator, until the filling material strand has been guided both through the infeed and the outfeed device. This avoids a filling material strand end remaining unguided in the production device after the filling material product has been cut off and possibly causing a conveying jam when the production device is restarted.
  • the infeed and/or the removal device has a wheel train.
  • the wheel train grasps at least one of the paper web, strand of filling material and product of filling material between two conveyor wheels arranged opposite one another, in particular along the conveying direction.
  • the infeed and the outfeed device each comprise a wheel train.
  • the gear train of the infeed is implemented as a pair of embossing wheels, which transforms the paper web into a strand of filling material.
  • the wheel train preferably transports the paper web, the strand of filling material and/or the product of filling material along the conveying direction and/or a feed-through direction that is defined by a common tangent to the respective outer circumferences of the conveyor wheels of the wheel train.
  • the feed-through direction is the same as the conveying direction.
  • the lead-through directions of a gear train of the infeed and a gear train of the discharge device intersect at an angle of less than 45° and more than 5°.
  • the infeed and/or the removal device comprises in particular a gear train each with two in particular laterally oppositely arranged feed wheels relative to the conveying direction.
  • the conveyor wheels of a respective wheel train have different wheel diameters.
  • the distances between the axes of the conveyor wheels of a respective wheel train are undersized with respect to the wheel diameter or the sum of the radii of the two conveyor wheels such that the conveyor wheels are elastically biased against each other. Due to the elastic prestressing, a sufficient transmission of driving force to the strand of filling material and/or the product of filling material can be ensured even in the case of unprofiled conveyor wheels. Reaching through the infeed or the removal device in the area of the cutting device is made more difficult by the elastic pretension.
  • the infeed and/or the outfeed device each have at least one feed wheel.
  • the at least one conveyor wheel preferably includes an elastically deformable rolling area.
  • the feed wheel is formed by an elastomer body, such as a PU foam body.
  • the feed wheel has teeth.
  • the infeed and/or removal device preferably has two feed wheels each, one of which has teeth and the other feed wheel has opposite teeth, into which the teeth of the first feed wheel engages, in particular transferring drive forces.
  • a frictional connection between the conveyor wheels and/or the removal device that transmits drive forces can reliably transmit drive forces to the paper web and/or the strand of filling material without both conveyor wheels having to be driven. This enables the manufacturing device to be constructed at low cost.
  • the cutting-to-length device has a rotary cutter, which in particular comprises two tool parts, each mounted on a shaft and arranged laterally opposite one another with respect to the conveying direction.
  • the rotary cutter comprises a cutting pad on one tool part and a cutting edge on the opposite tool part.
  • the essentially preferably rectilinear cutting edge extends transversely, essentially perpendicularly to the conveying direction.
  • the cutting edge is arranged in front of and/or behind at least one perforation nose and/or slot receptacle in the direction of the shaft.
  • One tool part preferably has at least one perforation lug and the other tool part has at least one slot receptacle, in which the perforation lug engages during one revolution of the rotary cutter.
  • the device has a preforming station, which is in particular downstream of the infeed in the conveying direction and forms the paper web into a three-dimensional strand of filling material.
  • the preforming station by a Formed funnel for forming the paper web and / or a gear train of the feed, which is in conveying and / or embossing engagement with the paper web.
  • the cutting-to-length device has a perforation tool for making a perforation in the strand of filling material, which comprises at least one perforation nose, at least one perforation receptacle and at least one scraper.
  • a perforation tool for making a perforation in the strand of filling material which comprises at least one perforation nose, at least one perforation receptacle and at least one scraper.
  • the perforation nose and the at least one perforation receptacle such as a slot receptacle, are assigned to one another in such a way that the at least one perforation nose can move in and out with respect to the at least one perforation receptacle, such as the slot receptacle.
  • the scraper is assigned to the at least one perforation nose and/or the at least one perforation receptacle in such a way that the perforated strand of filling material is removed from the at least one perforation nose and/or from the at least one perforation receptacle when it is extended.
  • the perforation tool according to the German patent application 10 2013 015 875.3 with filing date September 23, 2013 executed.
  • an apparatus 10 for machining a dunnage product according to the present invention is generally designated by the reference numeral 10.
  • FIG. the manufacturing device 10 is shown without a housing, so that the view of the housing support 13 and the components of the manufacturing device 10 relevant to the invention is clear.
  • the manufacturing device 10 includes a feed conveyor 2, which conveys a paper web (not shown) in the form of rolls or stacks away from a paper receptacle, eg winds it off a roll or removes it from a stack, and pulls it in a conveying direction F into the manufacturing device 10.
  • the feed conveyor 2 comprises a feed funnel 21 , which tapers from a paper receptacle (not shown) to a feed channel that runs through the housing support in its direction of extension and opens out at a dispensing opening 9 .
  • the infeed also includes a wheel train 23 directly connected to the feed funnel 21, which is rotatably mounted in the housing support 11 and imparts conveying forces to the paper web tangentially to the wheels.
  • the volume of the paper web unwound in tube or web form is compressed radially to the conveying direction F, so that kinks and folds of individual paper web sections create air cavities, which determine a cushioning effect of the filling material product to be manufactured.
  • the gear train 23 of the feeder 2 is formed by two feed wheels 23a, 23b arranged opposite one another along the feed channel, of which in particular only one is driven in rotation (not shown in detail).
  • the rotary drive can be tapped off from a drive gear unit 120 via a gear (not shown) or a toothed belt system.
  • the second feed wheel 23b of the wheel train 23 is mounted so as to rotate essentially freely.
  • the feed wheels 23a, 23b are in mutual engagement so that the driving forces from the driven feed wheel 23a are communicated to the feed wheel 23b.
  • the rotary shaft 25b of the freely rotating feed wheel 23b and the rotary shaft 25a of the feed wheel 23a are arranged at an undersized radial distance from one another in the housing support 13 in relation to the maximum outer diameter of the feed wheels, so that there is a feed wheel overlap and thus a feed contact area 26 between the Conveyor wheels 23a, 23b results.
  • the conveyor wheels 23a, 23b are elastically biased against each other.
  • the driven feed wheel 23a is provided with an elastically deformable rolling area 24, such as a foam tread, which deforms elastically in the contact area 24 relative to the co-driven feed wheel 23b.
  • Both conveyor wheels 23a, 23b can be made predominantly or completely from an elastic material, such as foam, or, like the conveyor wheel 23a, have an elastic rolling area 24 or an elastic running surface, for example made of foam.
  • the conveyor wheels 23a, 23b are designed as gear wheels, which engage in one another and in the paper web and also achieve an embossing of the air inclusions in the paper web to form a strand of filling material.
  • the wheel train 23 grips the paper web preformed by the funnel 21 and, by means of the compressive force acting on the preformed paper web between the conveyor wheels 23a, 23b, forms kinks and folds in the paper web, so that a three-dimensional filling material strand with cushioning air inclusions is preformed.
  • the conveying direction F is specifically defined by a common tangent to the two conveying wheels 23a, 23b of the infeed 2. Alternatively, the conveying direction F is determined from the strand throughput extension of the paper web or the strand of filling material as it passes through the device 10.
  • the funnel 21 and the gear train 23 of the feed conveyor 2 together form a preforming station. An example of an induction that directs preform work is through the preform station according to FIG DE 10 2012 018 941 A1 given.
  • the cutting-to-length device 4 In the conveying direction F, the cutting-to-length device 4, also in the housing support, follows the infeed.
  • the cutting device has a perforation tool of the type that, for example, from German patent application 10 2013 015 875.3 with filing date September 23, 2013 known 2. is.
  • the perforation tool comprises two tool parts 127, 129 which are arranged opposite one another and are essentially symmetrical to the conveying direction.
  • a tool part has a cutting edge 37 which cuts through a strand of filling material transported in the conveying direction F in the course of one revolution around the shaft 27 .
  • the second tool part which rotates about the shaft 27' synchronously with the first, has a cutting pad 183.
  • the cutting pad 183 and blade 37 come into cutting contact to sever the dunnage product from the dunnage strand.
  • the shafts 27, 27' are driven in rotation by a respective drive gear 161, 161' which drives the rotary cutter formed by the blade 37 and the cutting pad 183 in rotation.
  • the gearwheels 161, 161' each have material recesses 163, in particular circular ones, which are distributed rotationally symmetrically evenly along the circumference. By means of the material recesses 163, the weight of the drive gears 161, 161' is reduced and the rotational inertia is reduced.
  • a removal device 6 directly adjoins the cutting-to-length device 4 .
  • the discharge device 6 has two conveying wheels 61, 63, the rotary shafts 69, 69' of which are on opposite sides of a conveying channel running along the conveying direction F of the housing support 13 are arranged.
  • the feed wheel 61 has a larger diameter than the feed wheel 63 .
  • the shaft 69' of the conveyor wheel 63 is arranged at a smaller distance from the shaft 27' of the cutting-to-length device 4 in the conveying direction than the shaft 69 is from the shaft 27.
  • the distance between the shafts 69, 69' of the removal device is relative to the maximum outer diameters of the conveyor wheels 61, 63 undersized, so that a standing under compression bias contact area 66 between the conveyor wheels 61, 63 is formed. Due to the arrangement of the shafts 69, 69' not exactly perpendicular to the conveying direction F or offset in the conveying direction F, the result is a conveying direction D between the conveying wheels 61, 63, which crosses the conveying direction F defined by the infeed and/or the extent of the housing support. The conveying direction D is defined by a common tangent to the conveying wheels 61, 63.
  • the conveyor wheels 61, 63 have an elastic running surface or are predominantly or completely made of an elastic material such as foam.
  • the dispensing opening 9 of the device 10 is covered by a pivoted flap 91 .
  • the flap 91 is designed in the manner of a check valve.
  • the flap 91 is mounted in the dispensing opening 9 in such a way that the conveying-off direction D by the conveying wheels 61, 63 is essentially perpendicular to the closed flap 91.
  • the shaft 69 of the feed wheel 61 has an output pinion 68 .
  • the drive gear unit 120 drives a drive pinion 121, which, via a toothed belt 123, applies rotary drive forces to the output pinion 68 of the discharge device 6.
  • a tensioning roller 28 is arranged in the housing support 13 relative to the drive pinion 121 and the toothed belt 123 in such a way that it has a pretension perpendicular to the direction of travel of the toothed belt 123 applies to the toothed belt.
  • the idler or idler pulley 28 contacts the non-toothed outer surface of the timing belt 123 to turn the timing belt.
  • the drive gear unit 120 also generates rotary drive forces for the cutting-to-length device 4. The driving forces are transmitted to the cutting-to-length device 4 via the gearwheels 161, 161', which is not shown in more detail in the figures for better clarity.
  • the rotational speed of the wheel train 23 of the infeed conveyor 2 is matched to the rotational speed of the conveyor wheels 61, 63 of the removal device 6 and to the rotational speed of the cutting-to-length device 4 in such a way that the cutting-to-length device 4 only reaches a cutting position when a strand of filling material provided by the infeed conveyor 2 is in Engagement with the conveyor wheels 61, 63 of the discharge device 6 comes.
  • the cutting position is defined by the fact that the cutting edge 37 is in contact with the cutting pad 183 and, in particular, is aligned parallel to it.
  • the wheel trains 23, 62 of the infeed 2 and the removal device 6 as well as the gear wheels 161, 161' of the cutting-to-length device 4 work synchronously, in particular at different speeds. This means that the conveyor wheels 23a, 23b, 61, 63 and the gears 161'161' rotate in a predetermined time and speed ratio to one another.
  • the drive gear unit 120 can be designed via a sensor system or timing control, not shown in detail, such that after a filling material product has been cut to length from a filling material strand, at least the feed conveyor 2 continues to run until the leading edge of the filling material strand trailing the filling material product comes into engagement with the removal device 6. This ensures that the system stops in a predefined operating state and that no material jams can occur when it reopens.
  • the rotational speed of the cutting-to-length device 4 is preferably matched to the rotational speed of the infeed conveyor 2 and the removal device 6 such that a predefined length of the filling material strand along the conveying direction F passes through the device 10 within one revolution between the cutting position and the cutting position.
  • the speed of the cutting-to-length device can preferably be adjusted relative to the conveying speed of the infeed conveyor 2 and the discharge device 6 in order to adjust the length of the filling material product to be manufactured.
  • the speeds of rotation are synchronized in a predetermined ratio to each other. This task is achieved by a gear of the drive gear unit 120 and by the translation provided by the drive pinion 121, a gear of the feed, the output pinion 68 and the gear wheels 161, 161'.
  • the manufacturing process of a filling material product is as follows: the paper web is fed into the device 10 in the conveying direction F along the longitudinal extent by the infeed 2 of the housing support 13 and preformed into a three-dimensional strand of filling material product as it passes through the gear train 23 of the feeder 2 .
  • the feed speed of the feed conveyor 2 is synchronized with the rotational speed of the rotary cutter of the lengthening device 4 and its predefined initial rotational position in such a way that the gear train 62 of the discharge device 6, which includes the conveyor wheels 61, 63, comes into conveying engagement with the filling material strand before the cutting edge 37 of the cutting device 4 reaches the cutting position in order to cut off the filling material product from the filling material strand.
  • the conveying device 6 applies a conveying speed to the filling material product which is greater than or equal to the conveying speed applied by the infeed 2 to the strand of filling material. This ensures that no paper jam can occur.
  • the strand of filling material is guided under tensile stress within the device at the moment of separation by a removal speed that is between 0.1% and 20%, in particular between 0.1% and 10%, preferably between 0.1% and 5%.
  • the filling material product is then transported by the discharge device 6 in the direction of the discharge opening 9, the conveying speed being high enough to push open the closure flap 91.
  • the drive gear unit 120 opens the closure flap 91 in intervals or at a predefined time interval for cutting, synchronized with the cutting-to-length device 4 and/or the removal device 6 .
  • the cutting edge 37 of the cutting device 4 is integrated in a perforation tool with a nose tool part 127 and a receiving tool part 129 which produce shape-retaining perforations on the trailing edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge of the edge.
  • the receiving tool part 129 has a cutting pad 183 and slot recesses 177a, 177b into which the perforation lugs 45a, 45b of the opposite nose tool part 127 penetrate.
  • a scraper 57 is provided in the nose tool part 129, which is designed as a PU foam bar in order to remove the strand of filling material from the per

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP15791567.9A 2014-11-14 2015-11-04 Vorrichtung zum maschinellen fertigen eines füllmaterialerzeugnisses Active EP3218178B1 (de)

Priority Applications (1)

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DE102014016874.3A DE102014016874A1 (de) 2014-11-14 2014-11-14 Vorrichtung zum maschinellen Fertigen eines Füllmaterialerzeugnisses
PCT/EP2015/075665 WO2016075001A1 (de) 2014-11-14 2015-11-04 Vorrichtung zum maschinellen fertigen eines füllmaterialerzeugnisses

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ES2923583T3 (es) 2022-09-28
WO2016075001A1 (de) 2016-05-19
US11780201B2 (en) 2023-10-10
US20210394479A1 (en) 2021-12-23
US20170313016A1 (en) 2017-11-02
US11135802B2 (en) 2021-10-05
HUE059576T2 (hu) 2022-11-28
CA2967701C (en) 2023-09-19
EP3974169A1 (de) 2022-03-30
PL3218178T3 (pl) 2022-11-14
EP3218178A1 (de) 2017-09-20
DE102014016874A1 (de) 2016-05-19
DK3218178T3 (en) 2022-06-20
CA2967701A1 (en) 2016-05-19

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