EP0441131A1 - Procédé et appareil pour alimenter avec un ruban une machine de production, en particulier une machine de conditionnement - Google Patents

Procédé et appareil pour alimenter avec un ruban une machine de production, en particulier une machine de conditionnement Download PDF

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Publication number
EP0441131A1
EP0441131A1 EP91100381A EP91100381A EP0441131A1 EP 0441131 A1 EP0441131 A1 EP 0441131A1 EP 91100381 A EP91100381 A EP 91100381A EP 91100381 A EP91100381 A EP 91100381A EP 0441131 A1 EP0441131 A1 EP 0441131A1
Authority
EP
European Patent Office
Prior art keywords
storage
store
content
material web
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91100381A
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German (de)
English (en)
Other versions
EP0441131B1 (fr
Inventor
Heinz Focke
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.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Focke and Co GmbH and Co KG filed Critical Focke and Co GmbH and Co KG
Publication of EP0441131A1 publication Critical patent/EP0441131A1/fr
Application granted granted Critical
Publication of EP0441131B1 publication Critical patent/EP0441131B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/30—Arrangements for accumulating surplus web
    • B65H20/32—Arrangements for accumulating surplus web by making loops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/21—Accumulators
    • B65H2408/212—Accumulators of zigzag-type

Definitions

  • the invention relates to a method for controlling the drive of a bobbin from a continuous material web, preferably a packaging material web, from which cuts are separated one after the other and fed to a processing or processing machine, in particular a packaging machine or a folding unit (folding turret), the material web forming a material store.
  • a processing or processing machine in particular a packaging machine or a folding unit (folding turret), the material web forming a material store.
  • the invention relates to a device for feeding a material web to a processing or processing machine with a motor for driving a bobbin of the material web in an unwinding sense and with a material (web) storage device through which the (unwound) material web can be conveyed , in particular also to carry out the aforementioned method.
  • a problem with the feeding of the material web to the processing machine is that the processing machine, in particular the packaging machine, is generally operated in different operating states, which often and often are the same alternate quickly.
  • the operating states of the machine are, for example, standstill, normal running, (brief) overspeed operation or (brief) creep speed.
  • the bobbin must imitate the operating states in the presence of a material store, even if perhaps with a time delay, in accordance with the operating states of the subsequent machine.
  • the heavy bobbin has an inertia that hardly or not at all makes it possible to react immediately, albeit with a time delay, to the needs of the machine or the operating conditions of the machine.
  • heavy bobbins are used in connection with packaging machines if, for example, packaging material made of thin cardboard is to be processed into packaging.
  • packaging processes it is known to already subdivide the material web into packaging blanks, the individual blanks remaining connected to one another via residual connections and thus being able to continue to be provided as a material web on a bobbin. Only in the area of the packaging machine are the individual cuts cut from the material web, for example by tearing or shearing off.
  • DE-OS 37 16 897, DE-OS 37 35 674 and DE-OS 37 35 675 is made in connection with this prior art reference is made to DE-OS 37 16 897, DE-OS 37 35 674 and DE-OS 37 35 675.
  • the invention is therefore based on the object of further developing the generic method in such a way that the material store can be filled with material web from the reel, largely independently of the operating states of the subsequent machine, as continuously as possible.
  • the object is achieved in that the content of the material store is determined (continuously) and the drive of the reel is controlled in accordance with the store content in such a way that a minimum store content is not undershot and a maximum store content is not exceeded.
  • control of the drive of the bobbin according to the invention advantageously and in a surprisingly simple manner enables the bobbin to fill the material store, practically independently of the operating states of the subsequent machine, can be driven in a continuously rotating manner, possibly with moderately changing speeds, but largely without interruptions. In particular, complicated stopping or restarting of the bobbin can be largely avoided in this way.
  • the method according to the invention preferably provides that the memory content of the material store is measured both itself and (additionally) is determined by registering which amount of material is entered in the material store and which amount of material is removed from the material store.
  • the storage content itself can be determined, for example, by weighing or by measuring the length of the web of material in the storage.
  • the material web is preferably entered into the material store in zigzag-shaped layers, so that the contents of the memory can also be detected by determining the number of layers.
  • Such a zigzag-shaped introduction of the material web is particularly advantageous and can be carried out in a simple manner in the case of material webs which are already divided into blanks which are still attached to one another via residual connections, since weakenings are formed in the region of these residual connections, which facilitate kinking of the material web.
  • the export from the memory is either not released or at least the import is carried out faster than the export until the predetermined intermediate value is exceeded .
  • the bobbin is thus preferably driven at a speed which, depending on its size, depends on the degree of filling of the material store. The drive of the bobbin is maintained as long as possible, i.e. performed continuously, albeit at variable speeds.
  • the bobbin is preferably only stopped when the material store is completely filled and there is no discharge from the material store. Certain emergency stop situations can of course also be provided, for example if the material web breaks.
  • rollers are used in preferred exemplary embodiments for feeding the material web into the memory and for conveying it out of the memory, the amount of material fed in and out, in particular the length of the material web, being registered by registering the rotary movement of the rollers, taking into account the roller circumference.
  • Known rotary pulse generators can be used for this. For example, 1000 pulses per revolution of a roller can be emitted by means of such a rotary pulse generator.
  • the actual memory content is determined in a more direct way, preferably by means of optical sensors, with a pair of sensors preferably being assigned to each layer of the material web folded in the zig-zag shape in the memory.
  • a layer stack is formed due to the weight of the layers in the material store, the respective top edge of which can optionally also be determined with a smaller number of sensors.
  • the memory or the memory content can be weighed, which is recommended in particular when the memory is oriented horizontally.
  • a device is characterized by a control for the motor for the bobbin, which includes detection means for detecting the memory content and by means of which the motor can be controlled in accordance with the (continuously) determined memory content, such that a minimum memory content is not undershot and a maximum Memory content is not exceeded.
  • the inventive method can in particular be carried out by means of such a device according to the invention.
  • the device according to the invention preferably comprises conveying elements for conveying the material web into the memory and for conveying it out of the memory, the movement of which can be detected in order to determine the contents of the memory more indirectly.
  • conveying elements for conveying the material web into the memory and for conveying it out of the memory, the movement of which can be detected in order to determine the contents of the memory more indirectly.
  • Rollers, pushing or pulling rollers are preferably provided as conveying elements, with tachometers or rotary pulse generators as measuring elements.
  • sensors can be assigned to the memory, preferably optical sensors for scanning layers of the material web, or weighing sensors or weighing elements for weighing the entire memory content.
  • FIG. 1 shows a side view of a section from a feed device according to the invention for feeding a material web, in particular a packaging material web, to a packaging machine (not shown).
  • the material web 10 is drawn off from a bobbin 11, which is driven in rotation via a drive pin 12.
  • the drive pin has a gear 13 which meshes with a pinion 14 of a shaft 15 of a motor drive 16 (FIG. 2).
  • the motor drive 16 is arranged on a machine frame 17.
  • the material web 10 is pulled off the rotating bobbin 11 by means of a pair of rollers 18, 19 and inserted into a storage housing 20 for a material store of the material web 10.
  • the driven roller 18 acts as a push roller.
  • the roller 19 can be designed as a rotating pressure roller.
  • the material web 10 is inserted in zigzag layers 21 by the pair of rollers 18, 19 into the storage housing 20.
  • the storage housing 20 is oriented perpendicularly, so that a layer stack with a recognizable upper edge forms due to the weight of the layers 21.
  • a pair of traction rollers 22, 23 is provided for conveying the material web 10 out of the storage housing 20.
  • the roller 22 is a driven pull roller
  • the roller 23 is a rotating pressure roller.
  • the material web 10 is conveyed further to the packaging machine (not shown) via further conveyor elements, in particular conveyor rollers 24.
  • the two driven rollers 18 and 22 have rotary pulse generators, via which the rotational movement of these rollers is registered.
  • Rotary pulse generators are preferably used which emit 1000 pulses per revolution of the roller.
  • the memory content of the memory housing 22 can be determined by comparing the rotational movements of the two rollers 18 and 22 determined in this way. For additional, more direct determination of the memory content, sensors or measuring elements are provided, which are explained in more detail in particular in connection with FIGS. 4 to 6.
  • the material web 10 is indicated in FIG. 1 once with a solid line when the bobbin is approximately full and once with a dash-dotted line when the bobbin is approximately empty (reference number 10 ').
  • the storage housing 20 is largely box-shaped, with the lower and the upper end face being open in the exemplary embodiment according to FIG. 1 for conveying the material web 10 through. In the area of these end faces, the storage housing 20 each has a pair of outlet parts 25. These outlet parts 25 protrude in the direction of the rollers 18, 19 and 22, 23 and ensure safe and exact feeding or removal of the material web.
  • outlet parts 25 are shaped like tongues.
  • the rollers 18, 19 and 22, 23 have recesses 26 into which the outlet parts 25 protrude approximately tangentially.
  • the storage housing 20 has a continuous slot 27 which extends in the conveying direction of the material web 10 and through which the layers 21 of the material web 10 in the storage housing 20 can be observed.
  • FIG. 3 once again shows the exemplary embodiment according to FIG. 1 in a more schematic representation.
  • the topology of the material web feed is made clearer.
  • the storage housing 20 is again arranged largely vertically.
  • a measuring element 30, which comprises a series of sensors arranged one above the other.
  • FIG. 4 shows a second exemplary embodiment of a feed device according to the invention in a schematic representation, which corresponds to the representation of FIG. 3.
  • the embodiment according to FIG. 4 differs from the embodiment according to FIG. 3 essentially in that the storage housing 20 is arranged horizontally. With this orientation of the storage housing 20, the layers 21 of the material web 10 in the storage housing 20 do not form a layer stack with a recognizable upper edge.
  • a measuring element 31 is therefore assigned to the storage housing 20 and comprises a weighing element or a weighing device. In this embodiment of the device, the memory content is thus recorded in a weighing manner.
  • FIG. 5 and 6 show a region of the memory housing 20 according to the embodiment of FIG. 1.
  • a plurality of sensors 32a and 32b are arranged in the interior of the memory housing 20.
  • the sensors 32a, b are arranged one above the other at a distance from one another, which corresponds approximately to the distance between two layers 21 in the layer stack forming in the storage housing 20.
  • a transmitter 32a and a receiver 32b are arranged opposite one another as sensors.
  • the sensors 32a, b which are assigned to one another are arranged somewhat offset in height from one another, so that a test beam 33 emitted by the transmitter 32a extends at a somewhat acute angle (angle 34) to the respectively adjacent folded edge 35 of the layers 21 of the material web 10. This ensures that in the maximum case each test beam 33 intersects a folded edge 35 which is thus detected by the receiver 32b. It is thus possible to use sensors 32a and b to determine the number of layers 21 of the material web 10 in the storage housing 20, at least the layers 21, which together form a layer stack due to the weight of the material web 10.
  • the zigzag-shaped folding and layering of the material web 10 shown can in particular be carried out in a simple manner in the case of material webs which are already subdivided into individual blanks, but which are still connected to one another via residual connections, since in the region of these residual connections the material web 10 is weakened in such a way that a fold edge 35 can easily be formed in this area, so that each layer 21 is formed by a blank.
  • FIG. 7 and 8 show block diagrams for a control of the feed device according to the invention, via which the drive 16 of the bobbin 11 is controlled.
  • the controls each include measuring elements 30 and 31.
  • the control according to FIG. 7 is operated largely analog, while the control according to FIG. 8 is operated largely digitally.
  • the first circuit has been assigned to a sensor measuring element 30 and the second circuit has been assigned to a weighing measuring element 31. It could also be a reverse Assignment done.
  • circuits shown as signal transmitters comprise rotary pulse transmitters 36 and 37 which are assigned to the rollers 18 and 22.
  • the output signal of the measuring element 30 or 31 is fed to an analog / digital converter 38.
  • the signals of the rotary pulse generators 36 and 37 and the output signal of the analog / digital converter (ADC) are supplied to counters 39..41. In the embodiment shown in FIG. 7, these signals are continued without a counter.
  • the rotary pulse generator 37 of the pull roller 22 and the measuring member 30 and 31 are connected to the inputs of a summer 42.
  • the output signal of the summer 42 and the output signal of the rotary pulse generator 36 of the push roller 18 are given to the inputs of a comparator 43.
  • the output signal of the comparator 43 is fed to a speed controller 44, which controls the motor drive 16 of the bobbin 11.
  • a motor (emergency) shutdown 45 is assigned to the motor drive 16 via the speed controller 44.
  • the output signal of the measuring element 30 or 31 is also fed to a speed controller 46 with which the drive element 29 of the pull roller 22 is controlled.
  • the speed controller 46 is preceded by a release member 47.
  • the mark 48 means a minimum fill level
  • the mark 49 an intermediate fill level
  • the mark 50 a maximum fill level
  • the mark 51 a complete filling of the memory housing 20.
  • the feed device according to the invention or its control works as follows:
  • the speed of the drive in particular a relatively heavy bobbin, is to be adapted to the partially intermittent material take-off to a packaging machine, with the least possible changes in speed or low acceleration.
  • the pressure roller 19 is pressed against the push roller 18 and the pressure roller 23 against the pull roller 22.
  • the rotary pulse generators 36 and 37 the push roller 18 and the pull roller 22 emit angular momentum during the movement of the rollers 18, 22, preferably 1000 impulses per revolution, as a result of which the rotational movement of the rollers 18, 22 is detected quantitatively. From this rotary movement, it is determined how much material is input into the storage housing 20 and how much material, in contrast, is removed from the storage housing 20. The memory content of the memory housing 20 is determined from this.
  • the memory content of the memory housing 20 is also determined by the measuring element 30 or 31. Both measurements are linked to one another via the summer 42.
  • the bobbin 11 and the push roller 18 are first driven alone with the storage housing 20 empty, without the pull roller 22 until the intermediate mark 49 is reached.
  • the memory has thus reached a filling level at which when the material removal is started with relatively high acceleration, the bobbin can adapt to the removal speed with relatively low acceleration without the Memory becomes empty.
  • the drive member 29 for the pull roller 22 is started and thus the removal or removal from the storage housing 20 is released. Thereafter, the drive 16 of the bobbin 11 is operated depending on the fill level of the storage housing 20, specifically within the limits of the marks 48 and 50 for the minimum and maximum fill level. If the intermediate mark 49 is undershot, the speed of the bobbin 11 is increased by the amount that the mark falls below this mark until this mark 49 is reached or exceeded again. If the mark 49 is exceeded, the bobbin is slowed down by a corresponding amount. In this way it is ensured that the degree of filling is largely kept in the region of the intermediate mark 49.
  • variable speed component of the bobbin 11 is preferably added to a basic speed of the bobbin.
  • the drive 29 of the pull roller 22 for the conveyance is switched off. If, on the other hand, the maximum mark 50 is reached and exceeded, the drive 16 of the bobbin 11 switches to a creep speed until the mark 51 of the storage housing 20 is completely filled. If (still) no delivery is made from the storage housing 20 when this mark 51 is reached, the drive 16 switches off via the engine shutdown 45.
  • Engine shutdowns by the engine shutdown 45 can also be provided, for example, in the event of a web break or similar emergency situations.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Advancing Webs (AREA)
EP91100381A 1990-02-03 1991-01-15 Procédé et appareil pour alimenter avec un ruban une machine de production, en particulier une machine de conditionnement Expired - Lifetime EP0441131B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4003192 1990-02-03
DE4003192A DE4003192A1 (de) 1990-02-03 1990-02-03 Verfahren und vorrichtung zur zufuehrung einer materialbahn zu einer ver- bzw. bearbeitungsmaschine, insbesondere verpackungsmaschine

Publications (2)

Publication Number Publication Date
EP0441131A1 true EP0441131A1 (fr) 1991-08-14
EP0441131B1 EP0441131B1 (fr) 1994-11-30

Family

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Family Applications (1)

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EP91100381A Expired - Lifetime EP0441131B1 (fr) 1990-02-03 1991-01-15 Procédé et appareil pour alimenter avec un ruban une machine de production, en particulier une machine de conditionnement

Country Status (7)

Country Link
US (1) US5154037A (fr)
EP (1) EP0441131B1 (fr)
JP (1) JP2856930B2 (fr)
CN (1) CN1026091C (fr)
BR (1) BR9100434A (fr)
CA (1) CA2034786A1 (fr)
DE (2) DE4003192A1 (fr)

Cited By (1)

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WO1999041175A1 (fr) * 1998-02-12 1999-08-19 Gevas Verpackungsmaschinen Gmbh Compositions et procedes pour separer les cellules epitheliales du cristallin et empecher l'opacification capsulaire posterieure

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
US5341625A (en) * 1992-08-27 1994-08-30 Automated Packaging Systems, Inc. Bagging control apparatus and method
DE4234663A1 (de) * 1992-10-15 1994-04-21 Focke & Co Vorrichtung zum Transport von bahnförmigem Verpackungsmaterial
US5897478A (en) 1994-07-22 1999-04-27 Ranpak Corp. Cushioning conversion machine and method using encoded stock material
US5465555A (en) * 1994-09-27 1995-11-14 Copack International Inc. Apparatus for packaging granular material
US10159985B2 (en) * 2011-05-12 2018-12-25 Bühler AG Device and method for comminuting particles in liquid material
US11110666B2 (en) 2018-02-12 2021-09-07 Tipper Tie, Inc. Systems with external heat-seal assembly height adjustment control and related seal assemblies
CN114131637B (zh) * 2018-02-27 2024-02-23 福建世高智能科技有限公司 一种加工效率高的加工夹具
CN112093109B (zh) * 2020-08-31 2022-03-22 华天科技（昆山）电子有限公司 料带供料模组及装置

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US4589580A (en) * 1985-01-23 1986-05-20 Young Engineering, Inc. Web handling and accumulation system
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US3970489A (en) * 1974-02-25 1976-07-20 Copar Corporation Corrugator control system
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Publication number Priority date Publication date Assignee Title
WO1999041175A1 (fr) * 1998-02-12 1999-08-19 Gevas Verpackungsmaschinen Gmbh Compositions et procedes pour separer les cellules epitheliales du cristallin et empecher l'opacification capsulaire posterieure

Also Published As

Publication number Publication date
DE59103601D1 (de) 1995-01-12
CN1063657A (zh) 1992-08-19
DE4003192A1 (de) 1991-08-08
US5154037A (en) 1992-10-13
JP2856930B2 (ja) 1999-02-10
JPH04215918A (ja) 1992-08-06
EP0441131B1 (fr) 1994-11-30
BR9100434A (pt) 1991-10-22
CN1026091C (zh) 1994-10-05
CA2034786A1 (fr) 1991-08-04

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