EP1022123B1 - Verfahren und Vorrichtung zur Herstellung von Polstermaterial sowie Polstermaterial - Google Patents
Verfahren und Vorrichtung zur Herstellung von Polstermaterial sowie Polstermaterial Download PDFInfo
- Publication number
- EP1022123B1 EP1022123B1 EP00101066A EP00101066A EP1022123B1 EP 1022123 B1 EP1022123 B1 EP 1022123B1 EP 00101066 A EP00101066 A EP 00101066A EP 00101066 A EP00101066 A EP 00101066A EP 1022123 B1 EP1022123 B1 EP 1022123B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- transversely
- strip
- adjacent
- flat 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.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- 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
- B31D5/0065—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including slitting and expanding flat material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- 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
- B31D2205/0088—Control means
Definitions
- the invention relates to a method and a device for Production of upholstery material, in particular for packaging purposes, and a corresponding padding material.
- Padding material and methods and devices for its preparation are known from US-A-5,667,871 and US-A-5,439,730.
- packagings made of inherently rigid flat material, such as cardboard, corrugated cardboard, Cardboard o. The like. Are this mostly torn or on other way dismembered and collected the waste paper cycle fed. A proper disposal is not with associated with negligible work and expense.
- the invention is based on the object improvements in To suggest the area of packaging.
- the method of the invention is a particular padding material suitable for packaging purposes of inherently rigid Flat material such as cardboard, cardboard or the like in such a way that the sheet partially into strip portions is severed that in the transverse direction of the strip adjacent strip portions in the region of in the longitudinal direction the strip with spaced connection areas stay connected and by the Strip portions in a direction transverse to a neutral surface of the flat material between the connecting areas be deformed so that adjacent in the transverse direction Strip sections deflected in opposite directions become.
- inherently rigid Flat material such as cardboard, cardboard or the like
- the inventive deformation of the sheet can with respect to the starting flat material possibly a disposal problem and by the resulting cushioning material a manufacturing problem be solved.
- a thickness between about 0.5 mm and about 5 mm and can be perpendicular to the surface extent usually only slightly fauxpreßbar is by the forming according to the invention a cushioning material with created a substantially three-dimensional structure, now that by the envelope surface of the deformed Material "thickness" of the material a multiple of the material Output thickness can be and a shock-absorbing compliance in the area of the deflected strip sections is created. Furthermore, by dividing into Longitudinal strips the cushioning material in the transverse direction well flexible, so that, for example, for the packaging of Bring bottles to the bottle contour. Also in the longitudinal direction is a bending and / or compression of the Structure made up of contiguous strips.
- the cushioning effect is substantially in the range of generated in opposite directions deflected strip sections, which after Separation and deformation substantially permanently deflected are frictionally engaged in shape by edge friction being held.
- An improved conservation of the deflection can be achieved by cutting the edges slightly frayed or finely toothed. Therefor are appropriately processed cutting discs of Contraption.
- the open, three-dimensional padding material structure can For example, be generated by a stamping process at the forming substantially simultaneously over a larger, in particular the entire surface of the starting material he follows.
- a separation by strip cut is preferred with a plane parallel to the neutral surface of the sheet extending cutting direction, wherein for generating the Connecting sections of the strip section sections is interrupted.
- This is the transformation of the starting material in a continuously progressive process energy saving possible and it can also be used to generate larger-area upholstery material parts relatively small, space-saving deployable cutting devices are used.
- to Upholstery material production may be suitably modified, for Strip cut designed document shredder o. The like. be used.
- a particularly advantageous material structure can at a Training be generated by groups of example three transversely adjacent connecting regions each separated in the transverse direction. This allows the flexibility of the cushioning material in Longitudinal direction, ie with a curvature about a transverse direction parallel Axis, to be improved because in the separation area a mutual movement of each at the connection areas held together groups of strips becomes. In addition, a reversible elasticity of the material in Transverse direction created.
- the padding material made possible by the invention can exclusively from the intrinsically rigid starting flat material exist because in the padding material production neither new Substances such as adhesives or the like, added at temperatures or environmental conditions must be worked in which could possibly result in adverse changes.
- Suitable starting materials are in particular packaging materials such as rigid paper, fine board, cardboard or corrugated board, wherein the materials are each single-layered or multi-layered could be.
- Typical starting thicknesses are between about 0.5 and about 5 mm, but may be larger in exceptional cases or be smaller.
- Typical thicknesses of the produced padding material can be between about double and five times the starting material thickness and / or between approx. 1 mm and approx. 25 to 30 mm.
- Particularly suitable strip widths of normally limited essentially parallel side Strip sections can be between about 0.5 and 4 times the Thickness of the sheet are, in particular between 1 and 2 times this initial thickness.
- Such relatively compact Cross sections are particularly formhaltig and damping.
- the mean strip length between successive ones Connection areas can be more than 5 times, preferably between 20 times and 40 times the thickness of the Flat material and / or between about 3 and about 20 times, especially between about 10 and about 15 times as big as the stripe width. This is a good compromise between the achievable by the free strip length achievable Cushioning material thickness and the damping effect achievable. It should be noted that experience shows that Padding becomes smaller with increasing strip length.
- One in particular for carrying out the method described suitable device for producing padding material is based on the principle of the known, also known as Shredder designated document shredder.
- she has a Cutting unit with two cooperating, counter-drivable Cutting rollers, each of which has a plurality of Cutting discs has axially bounded by cutting edges are and between which axial spaces are provided, in each of the cutting discs of the other cutting roller in an overlap area up to a maximum Intersection depth for generating a cutting engagement intervention.
- the Cutting rollers formed such that the cutting engagement between adjacent cutting discs during one revolution interrupted at least once.
- Cutting discs preferably circular peripheral surfaces have, by at least one circumferential groove or edge recess are interrupted, wherein the groove has a groove depth, the is equal to or greater than the maximum overlap depth cooperating cutting discs.
- This causes it outside of the groove area in the region of the cutting gap to a Overlap and thus to a separation of neighboring Material areas, while in the non-overlapping peripheral section no cutting action takes place in the region of the groove and accordingly one of the strip sections in the transverse direction connecting bridge remains.
- Their longitudinal extent is in essentially determined by the circumferential length of the groove area, equal to or lower than the depth of intersection is. This circumferential length may e.g. between about 2% and about 5 % of the cutting wheel circumference length.
- the cutting discs have two diametrically opposed grooves, being generally preferred is when a cutting disc is a preferably even number of regularly distributed around the circumference of the cutting disc Has grooves, for example two, four, six or eight such Grooves.
- the cutting rollers are arranged to each other such that in an overlapping area of cutting discs at least in some Cutting discs next to a groove of a cutting disc of a cutting roller a groove of a cutting disc of the other Cutting roller is located.
- grooves adjacent Cutting discs of a cutting roller in the circumferential direction an even fraction of 180 ° offset from each other are, for example, at 45, 60 or 90 °.
- the grooves can be achieved that the connection areas individual strips or groups of strips in the longitudinal direction Seen alternately transversely offset against each other.
- the cut cushioning material in longitudinal and in Transverse direction very flexible and reversible in transverse direction stretchable.
- the cutting discs one above the other or substantially vertically one above the other are arranged, whereby a material supply of the usually flat flat material and a discharge of the produced Padding material in the horizontal direction is possible.
- horizontal material throughput is e.g. especially easy, the material outlet a suitable collection and / or transport device o. the like nachzulit.
- a preferably for operating the device described suitable method for the drive electric motor for the Cutting mechanism of the device is characterized in that from a direct current, in particular of any origin, by forming an at least single-phase alternating current is generated, fed with the drive electric motor becomes.
- the direct current can be in one AC variable frequency be converted. This allows adaptation to any required Operating state of the electric motor. Preferably is at low load of the electric motor in operation a high Frequency adjusted, which is mainly in use of squirrel cage motors a higher speed and thus results in faster destruction of documents. It can be provided several fixed speeds, with which different speeds (slow, medium, fast) for different modes of operation can be set.
- the gear ratios for the cutting unit can be different be selected, especially for high torque at normal Rotation speed. By increasing the frequency is then a higher Speed possible. Further advantages, especially during startup of the electric motor, can through a continuous change the frequency and thus the speed can be achieved. The wear of the entire device can be reduced by eliminating sudden peak loads or jerky speed changes. It will continue the operating comfort increased.
- the amplitude of the alternating voltage can be variable be to adapt to the demanded by a user Operating behavior of the electric motor.
- the generated AC sinusoidal, with the power electronics the converter also other, in particular any Shapes or waveforms can be generated.
- the DC is from any AC supply generated, in particular a single-phase AC power supply.
- a desired, for example, three-phase, AC are generated.
- Such a method may be a device for producing padding material with a three-phase motor operated on a standard socket become.
- a possible method according to the invention may provide that the alternating current for the electric motor through an inverter generated as the first inverter from the direct current is, wherein the inverter preferably via a DC link with a rectifier as second inverter connected to generate the direct current from the mains voltage is.
- the converters are preferably power electronics modules, for example with TRIACS, power transistors or thyristors equipped as valves.
- the Inverter be connected to each other via a kind of buffer, On the other hand, it may be possible to associate them directly with each other couple, possibly via a DC link. Of the Inverter depends on the alternating current to be generated trained, usually with six valves to Generation of three-phase current.
- the drive electric motor suitable means has at least one converter, which consists of a direct current an alternating current with at least one phase for the Electric motor generated.
- the inverter works as an inverter and preferably generates three-phase current.
- a Three-phase motor or an asynchronous motor can be used.
- Through a converter with power electronics can generates an alternating current of substantially any shape become.
- the first Inverter can be a rectifier as second inverter be provided by which it is possible to use the direct current to produce from an AC supply.
- the second Inverter can be implemented in a variety of ways DC link to be connected to the first inverter.
- a Frequency adjustment of the first inverter for speed change the engine can be adjusted by hand, for example, at least three to a maximum of ten times Exaggeration of the frequency.
- a load detection can be performed by a speed sensor, a current detection or other suitable sensors respectively.
- the first inverter with it modulated.
- Figures 1 to 3 show a device 1 for the production of shock-absorbing padding material from packaging cardboard or other suitable, inherently rigid sheet.
- the Device has a lockable, steerable rollers mounted housing with a box-shaped housing lower part 2 with largely flat top 3 and one with a Distance of a few centimeters above the lower part of the housing horizontally arranged, flat housing upper part 4, at the Front controls are arranged for the machine.
- An integrated cutting device 20 for the flat material comprises a mounted on the top 3, longitudinal Stop bar 21 and one with a transverse distance of about 40 cm to the stop bar arranged, vertical Cutting knife 22 that one on the cutting blade side open, horizontal gap 23 between lower part top side. 3 and housing upper part 4 bridged and also as a support for the upper housing part is used.
- the cutting device 20 makes it possible, if necessary, large pieces of flat material Strip with one of the working width of the cutting unit Width to cut or cut.
- the housing base is just below its top 3 approximately in the middle between front wall and rear wall Cutting unit 5 arranged, the one about a horizontal axis 6 rotatably mounted upper cutting roller 7 and vertically underneath one about an axis 6 parallel axis 8 rotatable lower cutting roller 9 has.
- the superimposed Cutting rollers are from one below the cutting unit the housing front wall mounted electric motor 10 via a Synchronization toothed gear 11 driven in opposite directions rotating.
- Each by turning (grooving) of metallic solid material manufactured cutting rollers has a continuous Cutting shaft 12 and projecting therefrom at regular intervals Cutting discs 13, between which ringnutförmige Gaps 14 are formed.
- Per cutting roller are about 50 Cutting discs with a diameter of approx. 78 mm and a width of about 4 mm, which is a total working width of Cutting unit of about 43 cm results.
- Each of the cutting discs has an interrupted in the range of later explained grooves, substantially cylindrical radial peripheral surface 15 and is axially limited by the interstices, essentially level and perpendicular to the shaft axes Cutting edges 16 limited.
- a cutting roller shown in Fig. 5 is the peripheral surface by a central, in the circumferential direction extending V-groove 17 divided and the to the Side edges adjacent peripheral surface strips are through an axial knurling 18 roughened.
- the surface roughening which also brought about by ball or sand radiation is used to improve the intake behavior of the cutting unit.
- the cutting discs can also as individual washers are made, the intermediate layer of the spacers o. The like.
- the vertical distance of the cutting roller axes 6, 8 is sized so that the cutting discs each up to a maximum depth of engagement or overlap 49 engage each other and alternately one Cutting disc of a cutting roller in the gap or the Space between two cutting discs of the opposite Roller engages. It remains between cutting disc peripheral surface and by the cutting shaft of the opposite bottom of a formed cutting roll Space between a clear distance, about the depth of engagement 44 corresponds and / or between approx. 5% and 20% of the Cutting disc diameter can be.
- the Interspaces 14 each only by tenths of a millimeter wider than the engaging cutting discs.
- the intervention or Intersection area 19 of the cutting discs is also called Cutting gap of the cutting called.
- This is approximately at the height of the cutting gap in the housing base 4 a few inches high and about 40 cm wide material guide channel 26 is provided, the before and behind the cutting unit through mutually parallel, even horizontal boundary surfaces 27, 28 is limited and itself both inlet side and outlet side in the range of Sloping surfaces extended to allow material introduction or material removal to facilitate.
- the cutting rollers are located on both sides of the material guide channel in downwardly or upwardly opened rectangular recesses 29, 30, at the height of the boundary surfaces 27, 28 inserted through Guiding plates 31, 32 of a stripping device 33 bridged are.
- the rectangular U-shaped angled baffles are inserted between the two cutting rollers and run between the edges of the recesses 29, 30 horizontally in extension of the boundary surfaces 27, 28 and tangential to the cutting shafts near the well-near bottoms of the interstices 14. They have rectangular in the field of cutting discs Slots through which the cutting discs with small side clearance, but without edge contact in the Projecting portion of the material guide channel 26.
- the Baffles are used to strip the finished Padding material from the cutting rollers and prevent one Transport of clippings through the rollers in the area of Recesses. They are single compared to conventional ones inserted individual scrapers with comparable stripping effect significantly less expensive to produce, since they, for example stamped in one piece from a sheet metal part and used to form the Rectangular angle shape can be bent.
- the cutter 5 is similar to a cutter known Document shredder designed for strip cut, wherein however, due to a special geometry of the cutting rollers in the Area of the cutting discs no through, but in Lengthwise sectionally interrupted cuts produced become. As a result, the treated sheet is in one another split contiguous strip sections, wherein to achieve sufficient padding, the strip sections each alternately in the opposite direction are deflected or deformed. This can be done by the in Fig. 4 achieved example shown geometry of the cutting discs become.
- the cutting discs of the local cutting roller 40 are each identically shaped, but are axially adjacent Cutting discs rotated by 90 ° to each other.
- the front cutting disk 41 has two at its periphery grooves 43, 44 arranged diametrically to the cutting shaft axis 42; the circular-cylindrical represented for reasons of simplification, usually by a knurling or a other roughening structured outer peripheral surface in Interrupt circumferential direction.
- the grooves each have a largely flat, vertical to the shaft radius aligned groove bottom 45, which is about extends a circumferential angle of, for example, about 10 to 15 ° and by parallel to each other and perpendicular to Groove running edge portions 46 in the circumferential direction is limited. These go about halfway up in about 45 ° inclined to the radial direction inclined surfaces 47 via. These Oblique flattening, which also by a transition radius can be replaced, breaking the groove edges and serves the Avoidance of unwanted cross-section when overlapping adjacent cutting discs in the groove area.
- the groove depth 48, the radial distance between the groove bottom 45 and the imaginary arcuate extension of the radial Peripheral surface in the central region of the groove corresponds, is in the embodiment shown so to the center distance of the Adapted cutting shafts and the diameter of the cutting discs, that it is greater than the maximum overlap 49 the cutting blades in cutting engagement.
- This overlap 49 (FIG. 6) is calculated as Difference between the sum of the maximum cutting wheel radii co-operating cutting rollers and the center distance the cutting rollers.
- the cutting disc 41 adjacent Cutting disc 50 is opposite to this 90 ° about the axis 42nd twisted while the subsequent cutting disc 51 again with the front cutting disc 41 is aligned and the rear Cutting disc 52 with the second cutting disc 50 u.s.w.
- Fig. 6 The axial sequence of staggered cutting discs is also clearly visible in Fig. 6.
- This illustration shows an axial section of the cutting mechanism in the material feed direction considered, wherein the cutting rollers against the Representation in Fig. 4 rotated by, for example, about 30 ° are, so that the grooves are recognizable in oblique insight.
- the grooves themselves offset opposite cutting discs each at the same time enter or come into the cutting gap 19 (see Fig. 7). This results in the axial direction a repetitive sequence of different intervention conditions between each cooperating cutting discs.
- the flat material 60 enters the overlap area in the horizontal feed direction 61 the cutting discs and is everywhere where the cutting edges of cooperating cutting discs If necessary, overlap rubbing, severed by shearing, where in each case the width of the resulting strip sections essentially the width of the cutting discs equivalent.
- the material is on both sides of the Cut of the respective adjacent cutting discs in the each of the cutting disc associated, opposite Space pressed in, resulting in a deformation of adjacent Strip sections in opposite directions relative to the normally planar neutral surface 64 of the sheet leads.
- the strip section facing the viewer becomes 65 through the upper cutting disc 57 and their cylindrical circumference pressed down, while the rear Strip section 66 through the lower cutting disc 59 after is pressed up.
- the progressing in the longitudinal direction Strip cut is interrupted as soon as the cutting engagement is canceled between cooperating cutting discs. This is the case in the example shown where the grooves 56, 58 meet.
- the in this area located Flat material remains largely intact and uncut and forms a connection region 67 in the transverse direction adjacent strip sections connects and holds together. It it is obvious that the length of the interruption of the Longitudinal section of the circumferential extent of the groove portion which is lower than the maximum intersection depth is.
- the one-ply corrugated board 60 shown in FIG. 8 padding material produced the described device consists of longitudinally 68 parallel to each other Strip portions 65, 66 whose width in the transverse direction 69 is determined by the width of the cutting discs and in the example about 4 mm.
- adjacent Strip sections hang in the region of longitudinally spaced connecting portions 67 with each other together, with the length of the connection areas substantially is determined by the groove widths of the cutter discs and may be for example about 6 to 8 mm.
- connection areas or Interruptions between strips in alternation offset against each other are the connection areas or Interruptions between strips in alternation offset against each other.
- the front strip section 65 with the next strip section 66 connected.
- the subsequent strip section 71 and the adjacent strip 72 consists a connection zone about the same width.
- Strip 65, 66, 71, 72 runs in the longitudinal direction extending section across the connection zone 70, through the connected group of four neighboring ones Strip 65, 66, 71, 72 in this area from the adjacent one Group of four in the same way continuous stripes is disconnected.
- the separation causes these groups of stripes if necessary in opposite directions based on can bend the sheet surface.
- connection zone 74 In the longitudinally subsequent connection zone 74 are the dividing the connection zone in the longitudinal direction Longitudinal sections transversely offset by two strip widths, so that e.g. between the strips 66 and 71 a continuous cut lies. These by the offset of the Grooves brought about, alternately offset connection or Separation of adjacent stripes causes the cut cushioning material in the longitudinal and in the transverse direction is well flexible, with the flexibility around the longitudinal axis however, it is bigger. In the transverse direction results in an elastic Extensibility, so that the material without tearing e.g. be pulled apart to twice its width can. In this case, an expanded metal-like structure of the exploded cushioning material, wherein the connecting portions make an angle to the direction of elongation.
- Fig. 9 shows a possible arrangement with an inverter 112 as the first inverter, by a direct current is fed and three-phase AC or three-phase any frequency, shape and amplitude generated.
- the inverter 112 of the rectifier 114 On the DC link 113 is the inverter 112 of the rectifier 114 is fed, which consists of single-phase AC makes a DC.
- He is one AC connection 115 connected, for example, on a standard single-phase power outlet in an office room.
- the inverter 112 is via a three-phase connection line 117 with a three-phase motor 118 as a drive electric motor (corresponds to the motor 10 of Figure 2) connected.
- a three-phase motor 118 has, in particular at a shaft end 119, a speed sensor 120, the speed and / or position of the rotor of the motor 118 detected.
- the data is about a Feedback 121 returned to the inverter 112. She can be used to control the supply of the three-phase motor 118th be used.
- the motor 118 drives according to FIG. 2 Cutting unit 5, which the from the engine via the transmission 11th driven, interengaging cutting rollers 7 and 9 having.
- the DC intermediate circuit 113 can in the DC intermediate circuit 113 is a so-called Be included boost converter, which increases the voltage. This allows a supply of the inverter 112 with a possibly much higher than that at the AC connection 115 lying tension.
- FIG. 10 shows in dashed lines a characteristic curve 123 of a Condenser motor compared to a characteristic 125 of a Three-phase motor.
- the torque M is plotted above the Speed n, which is correlated with the operating frequency.
- Speed n is correlated with the operating frequency.
- the characteristic 125 of the three-phase motor the starting torque higher than the characteristic 123 of the Condenser motor, as well as the overturning moment, that's the area of the maximum moment M.
- the pronounced missing Saddle area of the characteristic 123 which is lower in the area Speeds to the starting torque follows.
- Fig. 11 is a diagram showing an operation map.
- the torque M is plotted against the ratio of the operating frequency f to the nominal frequency f N. This results in laterally shifted characteristic curves, similar to the characteristic curve 125 from FIG. 2.
- the power P of the engine is plotted over f / f N , but dotted.
- the corner frequency f eck is also 50 Hz, so the ratio of the two to each other is 1.
- the power curve starts as the original straight line at zero and runs off f / f N is equal to 1 as a constant. This means that up to the corner frequency f eck at f / f N the power of the motor increases and remains approximately the same from the corner frequency. Voltage and output power are proportional to each other in the squirrel cage motor.
- the nominal frequency can be selected greater than 50 Hz, for example, 120 Hz.
- the first operating point 127 with M1 has almost maximum torque at f / f N less than 1.
- This first operating point 127 is taken by setting the frequency f less than f N across the inverter 112 to handle large quantities of cardboard or thick grades in a cushioning device. Although the cutting speed drops, but almost the maximum torque is applied. By increasing the voltage under f N , an increase in torque is possible.
- the second operating point 129 was chosen to be significantly greater than f N at a frequency. Although the achieved torque M 2 is significantly lower than that of the first operating point 127, but the frequency f and consequently also the cutting speed is about twice as large. This second operating point 129 is preferably chosen to handle thinner padding material to be produced.
- the dot-dashed curve 128 is the curve on which all operating points lie.
- the motor In the range up to f equal to f N , the motor is driven with constant magnetic flux.
- the tilting moment remains constant.
- the voltage reaches its maximum value, only the frequency is increased further.
- the magnetic flux and thus the available moment decrease by weakening the field.
- the tilting moment decreases quadratically at a substantially constant power.
- the output engine torque can be increased and thus the engine performance can be optimized.
- a device according to the invention can be used in a device for producing cushioning material, the inverter 112 and the rectifier 114 and a DC link 113 included. This way can be a compact as well uncomplicated to be connected device. This is then only a normal single-phase power outlet by plugging in.
Landscapes
- Crushing And Pulverization Processes (AREA)
- Gasket Seals (AREA)
- Making Paper Articles (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Body Structure For Vehicles (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19902227 | 1999-01-21 | ||
DE1999102227 DE19902227A1 (de) | 1999-01-21 | 1999-01-21 | Verfahren und Vorrichtung zum Betreiben eines Elektromotors eines Dokumentenvernichters |
DE19911628A DE19911628A1 (de) | 1999-03-16 | 1999-03-16 | Verfahren und Vorrichtung zur Herstellung von Polstermaterial sowie Polstermaterial |
DE19911628 | 1999-03-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1022123A2 EP1022123A2 (de) | 2000-07-26 |
EP1022123A3 EP1022123A3 (de) | 2002-05-29 |
EP1022123B1 true EP1022123B1 (de) | 2005-05-04 |
Family
ID=26051413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00101066A Expired - Lifetime EP1022123B1 (de) | 1999-01-21 | 2000-01-20 | Verfahren und Vorrichtung zur Herstellung von Polstermaterial sowie Polstermaterial |
Country Status (6)
Country | Link |
---|---|
US (1) | US6419867B1 (es) |
EP (1) | EP1022123B1 (es) |
CN (1) | CN100398311C (es) |
AT (1) | ATE294698T1 (es) |
DE (1) | DE50010197D1 (es) |
ES (1) | ES2243150T3 (es) |
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US8008882B2 (en) * | 2007-11-16 | 2011-08-30 | Michilin Prosperity Co., Ltd. | Rotation speed controlling system for shredder motor |
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CN105364987A (zh) * | 2015-12-18 | 2016-03-02 | 南京工程学院 | 一种用于硬质包装袋的修边器 |
EP3609694B1 (en) * | 2017-04-10 | 2021-04-28 | Ranpak Corp. | Expandable slit-sheet stock material, dunnage conversion assembly and method for expanding |
US11020930B2 (en) * | 2017-05-11 | 2021-06-01 | Pregis Innovative Packaging Llc | Splice member on stock material units for a dunnage conversion machine |
DE102018121618A1 (de) * | 2018-09-05 | 2020-03-05 | Hauni Maschinenbau Gmbh | Trennvorrichtung und Verfahren zum Auftrennen einer Flachbahn in eine Vielzahl von verbundenen Streifen sowie Vorrichtung und Verfahren zum Herstellen eines Strangs |
GB2593957B (en) * | 2020-11-06 | 2022-05-11 | Corridoor Ltd | Structure formation apparatus, method and structure |
WO2024160571A1 (en) * | 2023-01-31 | 2024-08-08 | Philip Morris Products S.A. | Device and method for weakening a sheet of aerosol-generating substrate for an aerosol-generating article component |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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BE754974A (fr) * | 1969-06-27 | 1971-02-18 | Cellu Prod Co | Procede de fabrication de materiaux thermoplastiques reticulaires ou analogues, produits pour son execution et articles ainsi obtenus, |
CH644478A5 (fr) | 1981-12-18 | 1984-07-31 | Cerac Inst Sa | Procede et moyens pour alimenter en energie electrique un outil portatif. |
JPS58181620A (ja) * | 1982-04-20 | 1983-10-24 | Tohoku Polymer Kk | 包装用網状材の製造方法およびその装置 |
US5207756A (en) | 1988-12-06 | 1993-05-04 | Shaikh G. M. Y. Alhamad | Compositions of matter for stopping fires, explosions and oxidations of materials and build up of electrostatic charges and method and apparatus for making same |
DE68927879T2 (de) * | 1988-12-06 | 1997-10-09 | Shaikh Ghaleb Mohammad Y A | Werkstoffzusammensetzung zum Hemmen von Bränden oder Explosionen und Verfahren dafür |
US5203761A (en) | 1991-06-17 | 1993-04-20 | Sealed Air Corporation | Apparatus for fabricating dunnage material from continuous web material |
US5667871A (en) * | 1992-03-16 | 1997-09-16 | Geopax Ltd. | Slit sheet packing material |
US5439730A (en) * | 1992-09-11 | 1995-08-08 | Productive Solutions, Inc. | Flowable loose packing dunnage |
DE19627599A1 (de) | 1996-07-09 | 1998-01-15 | Schleicher & Co Int | Dokumentenvernichter |
DE19629564C2 (de) | 1996-07-15 | 2000-10-19 | Glibitski Marks | Kleiner Hochleistungselektroantrieb für Asynchron-, Synchron -und andere Wechselstrommotoren |
DE19835093A1 (de) | 1997-07-25 | 1999-02-25 | Fellowes Mfg Co | Vorrichtung zum Steuern eines Papierschredders |
-
2000
- 2000-01-20 ES ES00101066T patent/ES2243150T3/es not_active Expired - Lifetime
- 2000-01-20 EP EP00101066A patent/EP1022123B1/de not_active Expired - Lifetime
- 2000-01-20 DE DE50010197T patent/DE50010197D1/de not_active Expired - Lifetime
- 2000-01-20 AT AT00101066T patent/ATE294698T1/de active
- 2000-01-21 US US09/489,406 patent/US6419867B1/en not_active Expired - Lifetime
- 2000-01-21 CN CNB001046942A patent/CN100398311C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE294698T1 (de) | 2005-05-15 |
DE50010197D1 (de) | 2005-06-09 |
CN1268473A (zh) | 2000-10-04 |
EP1022123A2 (de) | 2000-07-26 |
EP1022123A3 (de) | 2002-05-29 |
CN100398311C (zh) | 2008-07-02 |
ES2243150T3 (es) | 2005-12-01 |
US6419867B1 (en) | 2002-07-16 |
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