EP3856508A1 - Antriebsmechanismus für einen verpackungsmaterial-strangwickler, verpackungsmaterial-strangwickler, gewickeltes verpackungsmaterial-polster und verfahren zum herstellen desselben - Google Patents
Antriebsmechanismus für einen verpackungsmaterial-strangwickler, verpackungsmaterial-strangwickler, gewickeltes verpackungsmaterial-polster und verfahren zum herstellen desselbenInfo
- Publication number
- EP3856508A1 EP3856508A1 EP19782908.8A EP19782908A EP3856508A1 EP 3856508 A1 EP3856508 A1 EP 3856508A1 EP 19782908 A EP19782908 A EP 19782908A EP 3856508 A1 EP3856508 A1 EP 3856508A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- packaging material
- cushion
- flywheel
- strand
- winding
- 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.)
- Pending
Links
- 239000005022 packaging material Substances 0.000 title claims abstract description 293
- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000004804 winding Methods 0.000 claims abstract description 118
- 239000000463 material Substances 0.000 claims description 26
- 238000004806 packaging method and process Methods 0.000 claims description 16
- 239000011324 bead Substances 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000004049 embossing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 4
- 235000014443 Pyrus communis Nutrition 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000011161 development Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000009958 sewing Methods 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/10—Mechanisms in which power is applied to web-roll spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/56—Winding of hanks or skeins
- B65H54/58—Swifts or reels adapted solely for the formation of hanks or skeins
- B65H54/585—Reels for rolling tape-like material, e.g. flat hose or strap, into flat spiral form; Means for retaining the roll after removal of the reel
-
- 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
- B31D2205/0017—Providing stock material in a particular form
- B31D2205/0023—Providing stock material in a particular form as web from a roll
- B31D2205/0029—Providing stock material in a particular form as web from a roll unwound from inside
-
- 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
-
- 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
- B31D2205/0076—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads involving particular machinery details
- B31D2205/0082—General layout of the machinery or relative arrangement of its subunits
Definitions
- the invention relates to a drive mechanism for a packaging material strand winder for forming a wound packaging material cushion, such as a cushioning screw. Furthermore, the invention relates to a packaging material strand winder for forming a wrapped packaging material cushion, such as a cushioning screw, and a wrapped packaging material cushion, such as a cushioning screw, as such. Finally, the invention relates to a method for producing a wrapped packaging material cushion, such as a cushion screw.
- packaging cushions in particular from paper, preferably recycled paper
- different manufacturing systems are known.
- a web-shaped packaging starting material is provided with a so-called leporello stack and is pulled off of it, in order to then fold the two edge regions over one another towards the center of the packaging material web.
- the edge area folded over one another is fastened by a plastic embossing deformation in the middle area of the packaging material web, whereby a tubular packaging material strand or cushioning strand is formed.
- the sheet-like packaging starting material is realized by a packaging material roll.
- the upholstery strand made of packaging material is realized in this type of machine by pulling the packaging material web off the inside of the packaging material roll.
- This upholstery strand differs from the aforementioned in that it extends spirally in the strand direction.
- the spiral-shaped packaging material strand usually has no central embossing deformation.
- the packaging material strand can be converted into a wound packaging material disc by means of its own drive and a control assigned to the drive.
- an upholstery ejection mechanism is provided, which strips the finished upholstery product from the winding mechanism.
- the packaging material forming machines which already require a large amount of space, become even more extensive if they are provided with a known winding device.
- the known winding devices are individualized to the respective upstream forming machine, which means that flexible use of winding devices is not easy to implement.
- a drive mechanism for a packaging material strand winder for forming a wrapped packaging material cushion, such as a cushioning screw, which can work in particular without any drive auxiliary energy, in order to reduce the winding resistance forces, the pulling off of the packaging material strand and possibly further frictional forces, etc. to overcome.
- the drive mechanism according to the invention does not comprise an electric, pneumatic or hydraulic drive, but instead uses in particular exclusively an energy store for storing and delivering kinetic energy, in particular rotational energy, which is preferably carried out manually by an operator Hand power was supplied.
- the drive mechanism comprises at least one winding core, around which the strand of packaging material can be wound in such a way that the wrapped packaging material cushion can be removed from the winding core.
- the winding core is, in particular, of the generic type not part of the wound cushion to be manufactured, but rather a gripper rigidly coupled to the drive device, which remains on the drive mechanism and / or can be designed, for example, as a pair of tines, three-prong treble or the like.
- the winding core is preferably arranged offset by two at a distance from one another and possibly from an axis of rotation of a rotary flywheel mass.
- the winding core is coupled in a rotationally fixed manner to the rotary flywheel mass.
- the winding core is preferably rigidly connected to the rotating flywheel mass, alternatively a gear can be arranged between the winding core and the rotating flywheel mass.
- the gear unit can be designed as a reduction gear unit or transmission gear unit in order to be able to adapt the wind speed of the winding core to the rotational movement of the rotating flywheel mass, which is communicated in particular manually.
- the drive mechanism according to the invention comprises this rotary flywheel mass, which is freely rotating, for example by means of correspondingly smooth-running roller bearings, and to which the winding core is fixedly attached and which is designed such that, when a manual swing is actuated, at least one complete winding of the packaging material strand around the winding core, preferably one and a half, two, two and a half, three or four windings.
- the rotating flywheel mass in particular the flywheel, has an inertia, with a rotating movement of the rotating flywheel mass being stored with as little friction loss as possible and being able to be released if necessary. The more massive the flywheel, the greater the moment of inertia that is provided as drive energy for the packaging material strand winder.
- the flywheel mass or its moment of inertia can be structurally adjusted or set such that a manual force, an operating force applied by an operator to the flywheel mass is sufficient to store the necessary rotational energy in the flywheel mass.
- a hand force of greater than 5 kg, 10 kg, 15 kg, 20 kg, only 20 kg, 30 kg or 35 kg should be sufficient to give the rotating flywheel sufficient rotational energy so that at least one winding, preferably 2, 3, 4 complete Windings can be formed around the winding core.
- the manual drive mechanism according to the invention has little tendency to form jams, so that delay times due to jam removal or repair / maintenance hardly occur.
- the manual drive mechanism makes it possible to flexibly connect and integrate the packaging material strand winder equipped with the manual drive mechanism to packaging material conversion devices without having to change the structure of the packaging material conversion device.
- the applicant offers examples of a packaging material conversion device on the market via the product names “Speedman” and “PaperJet”, which are to be incorporated here with reference to the documents.
- the packaging material strand winder with a drive mechanism is preferably arranged at a short distance of less than 1 or 2 m from the output opening of the respective packaging material conversion device.
- the packaging material is made in particular from recycled paper.
- Recycled paper is, in particular, paper materials with a low proportion (less than 50%) of paper fiber containing fresh fibers. In particular, paper materials containing 70% to 100% waste paper are preferred.
- the recycled paper in the sense of this invention should be paper material which can have a tensile strength index along the machine direction, in particular a tensile strength of at most 90 Nm / g, preferably a tensile strength of 15 Nm / g, in particular from 30 Nm / g, to 60 Nm / g and preferably have a tensile strength index transverse to the machine direction of at most 60 Nm / g, preferably a tensile strength of 5 Nm / g to 40 Nm / g.
- a standard DIN EN ISO 1924-2 or DIN EN ISO 1924-3 can be used to determine the tensile strength or the tensile strength index. Additionally or alternatively, a recycled paper property or waste paper property can be characterized by the so-called burst resistance.
- a material in this sense is recycled paper with a burst index of at most 3.0 kPa * m A 2 / g, in particular of at most 2.8 kPa / g, preferably with a burst index of 0.8 kPa * m A 2 / g to 2 , 5 kPa * m A 2 / g, in particular from 1.3 kPa / g to 2.2 kPa / g.
- the packaging material has a mass per unit area of in particular 40 g / m A 2 to max. 140 g / m A 2.
- the starting packaging material can be in the form of a roll of material web or a zigzag-folded stack of packaging material, which is also referred to as a leporello stack.
- the rotary flywheel is designed such that only the manual force of an operator communicated to the rotary flywheel mass and the kinetic rotation transmitted to the rotary flywheel mass by manual actuation. Energy the winding work is used to form the wrapped packaging material cushion. In particular, only the rotational energy of the flywheel is used to manage the unwinding of the original packaging material, in which the packaging material strand is formed in particular, and the winding up to form the packaging material screw, i.e. the deformation of the strand into the winding screw.
- a mass moment of inertia of more than 30 kg / cm 2 preferably of more than 10 kg / cm 2 , 15 kg / cm 2 , 20 kg / cm 2 , 30 kg / cm 2 is for the rotating flywheel mass , 40 kg / cm 2 , 45 kg / cm 2 , 50 kg / cm 2 or 55 kg / cm 2 and preferably less than 500 kg / cm 2 , 400 kg / cm 2 , 300 kg / cm 2 , 250 kg / cm 2 , or 200 kg / cm 2 .
- the moment of inertia is preferably between, in particular, a rotary flywheel designed as a flywheel, which has an outer diameter of less than 100 cm, 80 cm, 70 cm, 60 cm, 50 cm and / or more than 10 cm, 15 cm or 20 cm.
- the rotational energy stored in a flywheel depends on its moment of inertia. The following applies:
- the total friction energy E R is composed, for example, as follows:
- E R total E Rl (eye of the needle, paper) + E R2 (paper, paper) + E R3 (storage)
- ER I is the friction work when guiding the packaging material strand to the winder
- ER 2 is the friction work when pulling out the original packaging material from, for example, a packaging material roll
- E R3 is the internal friction of the bearing to support the flywheel.
- the rotary flywheel is designed such that a rotational energy to be imparted to the rotary flywheel mass is greater than 0.1 J [Joule], 0.15 J, 0.18 J, 0.20 J, 0.22 J or 0.24 J and / or less than 10.0 J, 8.0 J, 5.0 J, 4.0 J, 3.8 J, 3.5 J or 3.3 J, by at least one complete winding of the packaging material strand to provide the winding core and / or the rotating flywheel mass to a speed of at least 0.5 s 1 , 0.6 s 1 , 0.7 s 1 , 0.8 s 1 , 0.9 s 1 or 1, 0 s 1 and / or to a speed of less than 10.0 s 1 , 5.0 s 1 , 4.0 s 1 , 3.0 s 1 , 2.5 s 1 , 2.0 s 1 or 1, Accelerate 8 s 1 .
- the operator should introduce at least 0.28 J [Joule] of rotational energy into the drive mechanism, ie the flywheel, in order to wind a paper screw with at least 3 turns.
- the flywheel should preferably be accelerated with a circular bead on the outer diameter of the flywheel to a speed n 0 of 1.14 s 1 to 1.36 s 1 .
- the rotating flywheel mass can have a flywheel or flywheel shape, the axis of symmetry of which coincides with a pivot axis of the rotating flywheel mass.
- the axis of symmetry can also be offset from the axis of rotation in order to simplify the threading of the packaging material strand on the winder.
- the circumference of the flywheel can be designed with a particularly circumferential handle, in particular with an axial dimension of at least 1 cm and / or at most 10 cm, which is preferably designed as a full-material annular bead that extends at least partially around the circumference or as a particularly open edge flange and / or as opposed to that Rest of the flywheel body is reinforced, in particular with the largest axial dimension.
- the drive mechanism preferably has a mounted rotary wheel (disk, round plate or spoke-like wheel) with at least two substantially parallel winding tines, which are arranged essentially perpendicular to the rotary wheel and between which a front end of a strip of packaging material is received. If a front end of the preferably tubular packaging material strip is located between the winding prongs of the packaging material screw converting device, the rotary wheel can be rotated manually by an operator in order to wind a packaging material screw.
- the packaging material screw is produced, for example, at a rotation rate which is dependent on the frequency of rotation of the operating personnel. The rotation rate preferably determines the size or the diameter of the wound packaging material screw.
- the winding is in particular also ended manually, preferably by manually separating the strip of packaging material.
- the rotary wheel (disc, round blank, wheel) has, for example, a diameter of preferably 100 mm to 2000 mm, in particular 400 mm to 800 mm.
- the rotary wheel does not have to be round, but can also be oval, polygonal or the like.
- the rotary wheel forms a (first) lateral guide for defined guidance / holding of a first side of the wound packaging material screw, which rotates according to the rotary movement and is arranged perpendicular to the winding axis.
- a second lateral guide can optionally be provided to stabilize the packaging material screw, in particular a second side of the packaging material screw.
- the second side guide serves preferably to keep the packaging material screw in a "winding track" and prevent sideways drifting of at least one layer of packaging material.
- the second lateral guide is a stabilizer (rod, strut or the like) perpendicular to the winding axis, which is arranged on the winding tines and / or essentially parallel to the described (first) lateral guide.
- the packaging material screw is wound between the first and the proposed second lateral guide.
- the at least one second lateral guide is folded away in the direction of the winding axis towards the winding tines by taking down the completely wound packaging material screw.
- the second lateral guide is opened again or set up in such a way that it lies essentially parallel to the first lateral guide.
- the flywheel or the flywheel preferably has a grip bead on its outer edge for manually driving the flywheel.
- the grip bead can be designed symmetrically or asymmetrically to the rotary wheel plane.
- the grip bead preferably has the same material as the flywheel.
- the grip bead can also be made of a different material than the flywheel and / or the rest of the packaging material screw conversion device.
- the winder can additionally or alternatively have a turning crank or another aid for rotating or actuating the flywheel and the winding tines.
- the winding core is formed from at least two winding pins arranged at a distance from one another and eccentric to a particularly fixed axis of rotation of the rotating flywheel mass, which in particular preferably extends orthogonally in the form of a rod away from a disc brake base area of the rotating flywheel mass and / or each have a free stripping end, via which the wrapped packaging material cushion can be removed, in particular the respective stripping end in a stripping position aligned with the longitudinal extent of the respective winding pin, in which the wrapped packaging material cushion can be removed, into a for the longitudinal extension of the each winding pin has angled guide position of the guide arm that can be moved, in which the guide arm laterally holds the wound packaging material cushion on the winding core, the guide arm exerting on the respective stripping end of the winding pin he a lockable Swivel joint is coupled, wherein in particular the respective guide arm is arranged in its guide position parallel to a lateral guide surface of the rotary flywheel.
- the at least two winding tines preferably have a length of 40 mm to 800 mm, in particular 60 mm to 200 mm. They are preferably made in one piece and preferably consist of a material with a yield strength of at least 40 MPa to approximately 1600 MPa.
- the surface quality of the winding tines is preferably dependent on the manufacturing process and averages between 0.1 pm and 25 pm.
- the winding tines preferably have a constant diameter of 10-30 mm, preferably 20 mm, over the length of the winding tines.
- the winding tines can be conical and preferably have a diameter of at least 5 mm and at most 40 mm.
- the winding tines are arranged at a distance of at least about 10 mm, preferably 100 mm to 600 mm from one another.
- the winding tines can be arranged at any position on the flywheel and at any distance from one another. There is also an expansion option for more than two winding tines.
- the invention further relates to a packaging material strand winder for forming a wrapped packaging material cushion, such as a cushioning screw.
- the packaging material strand winder comprises a receptacle for a packaging material supply, a pre-forming station which converts the packaging material withdrawn from the packaging material supply into a packaging material strand, and a drive mechanism described above and designed in accordance with the invention, which is also designed, in particular, to impart such a large pulling force to the packaging material, that packaging material is withdrawn from the packaging material supply and, if necessary, the packaging material is converted into a packaging material strand.
- a packaging material strand winder can be provided to form a wrapped packaging material cushion, such as a cushioning screw.
- the packaging material strand winder has a receptacle for a packaging material roll, from the inside of which is to be pulled off to form a spiral tubular packaging material strand; at least one winding core around which the packaging material strand can be wound in such a way that the wrapped packaging material cushion is removable from the winding core, and a manually confirmable drive mechanism to which the winding core is firmly attached and which wraps the packaging material strand around the winding core to form the wrapped packaging material cushion.
- winder or winder Preferably the winder or winder
- Packaging material strand winder have a fixing device.
- the fixing device can be a sewing prong, which pulls a piece of packaging material strip through the formed packaging material screw at the end of the packaging material screw in order to fix the screw in itself with a sewing tape or sewing thread.
- the use of adhesive tape for attaching the end of the packaging material screw can be omitted.
- the preforming station has a forming throat, which in particular forces the wrapping material into a tubular wrapping material strand when the wrapping material is pulled by the drive mechanism through the constriction (eye of the needle), the constriction in particular having a clear cross section in the form of a Circle, an elongated hole, a keyhole, a pear, a polygon, an ellipse or the like.
- the receptacle with a reservoir of at least one further packaging material is a supply, preferably several
- Packaging material inventories connected, in particular the reservoir in the case of a used packaging material in the receptacle or in the case of falling below a predetermined amount of packaging material in the receptacle automatically in favor of a receptacle occupied with packaging material, in particular the reservoir as a receptacle with at least 2 receptacles is designed to occupy a supply of packaging material, and or in which the receptacle is arranged below the drive mechanism, in particular with respect to the axis of rotation of the rotary flywheel, in a position between 5:00 and 7:00 a.m. the axis of rotation of the rotary flywheel in a position between 2:00 a.m. and 4:00 a.m. or above the drive mechanism, in particular with respect to the axis of rotation of the rotary flywheel in a position between 11:00 a.m. and 1:00 a.m.
- a fanfold stack can be provided on a pallet and / or packaging material rolls on an extended receiving storage space.
- the orientation of the paper tube to the winder can be a special one Have meaning.
- the packaging material screw device is preferably arranged near the outlet opening of the packaging material conversion device (eg SpeedMan Classic).
- the at least two parallel winding tines are particularly attached to a front of a turntable (rotary wheel).
- a winding shaft is arranged on the back of the turntable. It can be turned to the right as well as to the left. For axial fixation, the winding shaft is mounted in particular on roller bearings.
- the paper is preferably pulled out of the packaging material roll, which is stored at an angle of approximately 90 ° to the winding axis of the packaging material screw conversion device, in particular in the receptacle. In a first execution, the packaging material screw device is preferably arranged near the outlet opening of the packaging material conversion device (eg SpeedMan Classic).
- the at least two parallel winding tines are particularly attached to a
- Packing material roll can be arranged below the winding tines on a common carrier or support frame which is mobile. So the combination of
- Packaging material Device with the packaging material
- Packaging material screw conversion device can be flexibly pushed to each packing station.
- the packaging material device preferably has a holding device which prevents the packaging material from sliding downward from the roll due to gravity.
- Packaging material roll also above the winding tines, e.g. be attached to a carrier at the packaging workplace.
- These options enable a very space-saving winding of packaging material screws in the vertical orientation.
- the supply of packaging material can also be provided on the right or left side of the packaging material screw converting device in a horizontal alignment.
- Packaging material device can be positioned, for example, on a mobile frame.
- the packaging material screw converting device can be fastened to the packaging material device by means of a carrier, which is positioned on a mobile frame. Alternatively, you can use the
- Packaging material device can also be integrated at a packaging work station.
- the flywheel is assigned a brake, which is designed to brake the flywheel to a predetermined operating state, in particular a motion sensor, such as a rotary encoder, is provided which interacts with, for example, control electronics such that after reaching a certain size, in particular diameter, of the wrapped packaging cushion, the brake is activated, so that in particular the flywheel is braked.
- a motion sensor such as a rotary encoder
- the motion sensor can be used as an alternative or in addition, in particular like a camera is designed, an intervention of objects other than the packaging material strand, such as the extremity of an operator, causes the flywheel to be braked by the brake.
- the invention relates to a wrapped packaging material cushion, such as a cushioning screw, made from a packaging paper strand, in particular wound by a packaging material strand winder designed according to the invention, which is formed by a paper spiral tube unwound from the inside of a paper web roll.
- the wrapped packaging material cushion preferably has a disk shape with a disk thickness of less than 40 cm, 35 cm, 30 cm, 25 cm, 20 cm or 15 cm.
- a spiral edge can extend in a particularly straight line from a peripheral edge of the disks to the opposite peripheral edge.
- the packaging material cushion which is wound according to the invention consists of a packaging paper strand without an embossing, in particular gear embossing, which is arranged in particular centrally along the longitudinal extension of the packaging paper strand.
- the packaging material strand is free from an embossing deformation which extends in particular in the longitudinal direction of the strand direction of the preformed packaging material strand. Such a strand of packaging material is formed when one
- Packaging material forming device is used, which is described for example in DE 20 2012 009 025.
- the packaging material cushion according to the invention has a strand of packaging material which has a tubular spiral shape, in which the spiral shape in particular is formed in that the packaging material is pulled off an inside of a core-free roll of packaging material web.
- the packaging material web preferably consists of a recycling material, in particular paper recycling material.
- the packaging material cushion preferably has a winding density (number of windings / average radius of the cushion) of greater than 0.3, 0.4, 0.5, 0.6 or 0.7, in particular in a range of 0.5 to 2.0, preferably 0.7 to 1.8, 0.9 to 1.7, in particular 1.1 to 1.5.
- a cushion screw with a diameter of 200 to is created 400 mm, in particular 280 to 360 mm.
- the range of different diameters results from the friction during the winding process. If the friction is increased, the upholstery screw can be wound tighter, which results in a smaller diameter. With low friction, the upholstery screw is wound more loosely. A larger diameter is created.
- the number of windings per diameter (or radius) is almost constant due to the gradual release of the kinetic energy by the rotating mass. This results in a winding density of 1.1 to 1.5, ie 1.1 to 1.5 windings are wound per radius centimeter. In this winding process there is one
- Winding density 20 W i cklungen _ ⁇ 1.
- the packaging material cushion has a greater, in particular 1.5 times or twice as large, axial deformation resistance than (as) radial deformation resistance.
- a deformation ratio of a packaging material cushion from axial deformation to radial deformation can be less than 0.6 or 0.5, in particular between 0.3 and 0.5, if that
- Packaging material cushion is loaded by a predetermined load of, for example, 15 to 45 times the weight of the packaging material cushion.
- an axial deformation ratio of the packaging material cushion from an axial width without axial load to an axial width with an axial load of 15 to 45 times the weight of the packaging material cushion can be greater than 0.95 or 0.96, in particular between 0.96 or 0.97 and 1.00.
- FIG. 18 a table of values is given in which a cushion screw is formed by means of a spiral, tubular packaging material strand, which is formed, for example, according to the teaching in DE 20 2012 009 025.
- This cushioning screw is designated in FIG. 18 with the SpeedMan 70 roller.
- the deformation behavior of six packing pads (SpeedMan 70 roll), each for an axial or radial load, is shown in two separate lines.
- the corresponding deformation / stamping device is exemplified in DE 10 2012 018867 or DE 10 2012 018941.
- This cushioning screw is labeled Papeijet 90XS in FIG.
- the comparison should be made using snails that are essentially the same diameter. Due to the significantly denser winding density for the SpeedMan according to the invention, a higher weight can be achieved. It can be clearly seen that the SpeedMan's deformation in the axial direction is significantly less than that of the Papeijet. Quite unexpectedly, the SpeedMan has a significantly lower radial dimensional stability compared to the Papeijet. The SpeedMan is advantageous due to the softness in the axial direction and the strength in the axial direction.
- the same base paper material was used for both cushion screws.
- the load weight was 5580 g, with a load time of 30 seconds.
- the deformation ratio between axial and radial load is greater with the SpeedMan upholstery screw than with a Paper Jet upholstery screw.
- the SpeedMan upholstery screw deforms only 1% or less when subjected to an axial load, whereas it deforms by 57% when subjected to a radial load. I.e.
- the SpeedMan upholstery screw is dimensionally stable in the axial direction and has increased deformation capacity in the radial direction.
- the invention relates to a method for producing a wrapped packaging material cushion, such as a cushioning screw, in which a
- the packaging material strand is subtracted from a packaging material supply.
- the packaging material strand is around a winding core to form the
- Figure l is a perspective view of a packaging material strand winder according to the invention with a drive mechanism according to the invention
- Figure 2 is a perspective view of the packaging material strand winder according to
- Figure l wherein a packaging material strand is pulled out of a packaging material supply roll to thread it into the drive mechanism according to the invention
- Figure 3 is a perspective schematic view in which an operator
- Figure 4 is a side view of a winding arrangement according to the invention consisting of a drive mechanism according to the invention and a packaging material forming device with which a spiral-shaped strand of packaging material from the inside of a
- Packaging material roll is pulled off
- FIG. 5 shows a further side view of a further winding arrangement according to the invention, which differs in that a packaging material strand discharge direction from the
- Packaging material forming machine coincides with an axis of rotation of the flywheel
- FIG. 6 shows a further perspective view of a further embodiment of a packaging material strand winder according to the invention.
- FIG. 7 shows a perspective view of a further embodiment of a packaging material strand winder according to the invention with a supply of packaging material rolls;
- FIG. 8 is a perspective view of a drive mechanism according to the invention, which is designed as a flywheel;
- FIG. 9 shows a cross-sectional view of the flywheel according to the invention in a first embodiment;
- FIG. 10 shows a cross-sectional view of the flywheel according to the invention in a further embodiment
- Figure 11 is a schematic side view of an experimental setup for measuring the
- Figure 12 is a schematic side view of the experimental setup according to Figure 11, the
- Packaging material cushion is positioned in a horizontal orientation to measure its degree of deformation in the axial direction;
- Figure 13 is a schematic side view of the experimental setup according to Figure 11, the
- Packaging material cushion is positioned in a vertical orientation to measure its degree of deformation in the radial direction;
- Figure 14 is a perspective schematic view of an inventive
- Packing material cushion that has at least three windings
- Figure 15 is a schematic plan view of an inventive
- Figure 16 is a perspective, schematic view of an inventive
- FIG. 17 shows a top view of the packaging material cushion according to the invention
- Figure 18 is an away table on experiments that with the experimental setup according to the
- Figures 11-13 was made and indicates the deformation ratio with axial and straight loading.
- the packaging material strand winder according to the invention is provided with the reference number 1 in the first versions.
- the packaging material strand winder 1 has a receptacle 3 for receiving a packaging material roll 7.
- This packaging material receptacle 3 has a truncated cone-shaped outlet 5, which defines a delivery opening at which a tubular and spiral packaging material strand 8 can be pulled out as packaging material that can be individually processed on the one hand or can be pulled out according to the invention as an intermediate product for a subsequent winding.
- the packaging material strand 8 has a spiral tubular shape, which is created by pulling it off from the inside of the packaging material roll 7, as is described, for example, in DE 20 2012 009 025, which is to be considered incorporated to describe this object and in particular the packaging material forming device with reference.
- the receiving shell 3 is fastened to a movable stand 11 which has a chassis 13 which is formed in a cross shape, on the ends of the cross leg of which freely rotatable wheels are arranged.
- the carrier 11 has a support column 15 to which the receiving shell 3 is fastened and on the top of which the drive mechanism (21) according to the invention is formed.
- the drive mechanism according to the invention is designed as a flywheel 21, which is freely rotatably supported by roller bearings at the upper end of the column 15.
- a circumferential guide such as a passage narrowing point 27, is provided between the discharge opening 23 of the packaging material forming device and the flywheel 25, which acts in particular as a bottleneck.
- the passage throat 27 leads the strand of packaging material to the drive mechanism according to the invention in the form of the flywheel 21.
- the flywheel 21 is designed as a disk 25 and has a contact surface 31, from which two winding tines 33, 35 protrude vertically.
- the pair of winding tines forms the winding core around which the packaging material strand 8 is to be wound.
- the pair of winding tines is fixed on the flywheel. It is clear that a step-up or step-down gear can be arranged between the winding core and the flywheel 21 in order to provide a desired angular velocity of the flywheel 21.
- a foldable finger 37 is provided on one or both tines 33 in order to hold the wound upholstery screw 53 (not shown in more detail in the figure) on the tines when the latter is bent vertically.
- the cushion screw 53 is also intended to be held by the contact surface 31, a spring-loaded finger 37 being intended to press the cushion screw 53 against the contact surface 31.
- the finger 37 can be spring-biased in such a way that it can always independently reach the position perpendicular or parallel to the flywheel 21.
- the flywheel 21 has a wide actuation bead which can be up to 5 cm in size in order to be easily gripped by an operator.
- the operator pulls the spiral-shaped packaging material strand 8 out of the opening 23 and leads it through the constriction 27 to the two prongs 33, 35, as can be seen in FIG.
- the flywheel 21 is not yet to be actuated.
- the packaging material strand 8 is manually (m) threaded between the two prongs 33, 35.
- the operator then actuates the flywheel 21, the direction of rotation being freely selectable.
- the flywheel 21 is set into a rotary movement. Due to the moment of inertia of the flywheel mass of the flywheel 21 and the interlocking of the prongs 33, 35 in the packaging material strand 8, the latter is gradually wound up into a cushioning screw, which is indicated schematically in FIG.
- FIG. 4 shows a different orientation of the packaging material forming device with regard to the flywheel 21.
- the exit axis of the opening 23 is offset in its extension to the axis of rotation, which facilitates threading and initial winding.
- the delivery direction of the packaging material forming device is preferably set such that it hits one of the prongs 35, 33.
- orientation of the packaging material forming device can also be oriented such that the output axis crosses the axis of rotation S of the flywheel 21.
- FIG. 6 shows a further embodiment of a packaging material strand winder according to the invention, in which the receptacle 3 is simply formed by a table to which the column 15 of the carrier is fastened.
- the embodiment according to FIG. 7 differs from that according to FIG. 1 in that an especially rotatably mounted plate is provided on the chassis 13 for receiving a plurality of packaging material rolls 7 in order to be able to directly access the next one when one packaging material roll 7 is used.
- a flywheel 21 according to the invention is shown in detail in FIG. 8, wherein it can be seen that the two tines 33, 35 are mutually parallel and perpendicular to a contact surface 31 the flywheel 25 are arranged.
- the two tines 33, 35 extend around the radius of the flywheel 21.
- the shape of the flywheel 21 is, for example, in the form of a disk 25 with a flanged circumference in order to achieve simple gripping and swinging of the flywheel 21.
- the flywheel 21 can be formed by a bead which can either be formed by a solid material to increase the inertial mass or can be hollow.
- FIG. 11 In order to check the upholstery properties of the screw cushion according to the invention, an experimental arrangement shown in FIG. 11 is explained, in which a cushion screw 53 is arranged between a pressure plate 51 and an in particular stationary counter pressure plate 55. A threaded rod 57 extends through the counterpressure plate toward the pressure plate, the pressure plate being connected to a lower pressure plate 61 via a measuring device 63.
- a measuring device measures the deformation of the cushion screw 53 either in the axial direction, as shown in FIG. 12, or in the radial direction.
- FIGS. 14 to 17 Different cushion augers 53 are shown schematically in FIGS. 14 to 17.
- An essentially basic cushion screw is shown in FIG. 15, which has exactly three windings.
- This small cushioning screw 53 serves to cushion small volumes.
- the further cushioning screws according to FIGS. 14, 16 and 17 are wider cushioning screws 53 with significantly more windings.
- the particularly high strength of the cushion screw 53 in the axial direction is achieved due to the high winding density, which is achieved because the packaging material output strand is provided in a spiral shape without embossing.
- the spiral shape of the tube was shown to be advantageous when winding, because the sloping web edge, which can be seen on the outer end face of the cushion, catches.
- the spiral tube shape allows the spiral turns to move in the radial direction when loaded.
Landscapes
- Basic Packing Technique (AREA)
- Packaging Of Special Articles (AREA)
- Replacement Of Web Rolls (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018007549.5A DE102018007549A1 (de) | 2018-09-24 | 2018-09-24 | Antriebsmechanismus für einen Verpackungsmaterial-Strangwickler, Verpackungsmaterial- Strangwickler, gewickeltes Verpackungsmaterial-Polster und Verfahren zum Herstellen desselben |
PCT/EP2019/074715 WO2020064402A1 (de) | 2018-09-24 | 2019-09-16 | Antriebsmechanismus für einen verpackungsmaterial-strangwickler, verpackungsmaterial-strangwickler, gewickeltes verpackungsmaterial-polster und verfahren zum herstellen desselben |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3856508A1 true EP3856508A1 (de) | 2021-08-04 |
Family
ID=68138010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19782908.8A Pending EP3856508A1 (de) | 2018-09-24 | 2019-09-16 | Antriebsmechanismus für einen verpackungsmaterial-strangwickler, verpackungsmaterial-strangwickler, gewickeltes verpackungsmaterial-polster und verfahren zum herstellen desselben |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220040953A1 (de) |
EP (1) | EP3856508A1 (de) |
CN (1) | CN113165302B (de) |
DE (1) | DE102018007549A1 (de) |
WO (1) | WO2020064402A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022213314A1 (en) * | 2021-04-08 | 2022-10-13 | Nuevopak (Jiangmen) Environmental & Technology Company Limited | Coiler device for winding a strip of cushioning material |
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-
2018
- 2018-09-24 DE DE102018007549.5A patent/DE102018007549A1/de active Pending
-
2019
- 2019-09-16 CN CN201980062587.XA patent/CN113165302B/zh active Active
- 2019-09-16 US US17/278,901 patent/US20220040953A1/en active Pending
- 2019-09-16 WO PCT/EP2019/074715 patent/WO2020064402A1/de unknown
- 2019-09-16 EP EP19782908.8A patent/EP3856508A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2020064402A1 (de) | 2020-04-02 |
US20220040953A1 (en) | 2022-02-10 |
CN113165302A (zh) | 2021-07-23 |
DE102018007549A1 (de) | 2020-03-26 |
CN113165302B (zh) | 2023-12-08 |
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