EP0328875B1 - Verfahren und Vorrichtung zum Vereinzeln von ebenen Teilen - Google Patents

Verfahren und Vorrichtung zum Vereinzeln von ebenen Teilen Download PDF

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Publication number
EP0328875B1
EP0328875B1 EP89100563A EP89100563A EP0328875B1 EP 0328875 B1 EP0328875 B1 EP 0328875B1 EP 89100563 A EP89100563 A EP 89100563A EP 89100563 A EP89100563 A EP 89100563A EP 0328875 B1 EP0328875 B1 EP 0328875B1
Authority
EP
European Patent Office
Prior art keywords
stack
contact
flat
cams
separating
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
Application number
EP89100563A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0328875A2 (de
EP0328875A3 (en
Inventor
Wilhelm Reil
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Priority to AT89100563T priority Critical patent/ATE103570T1/de
Publication of EP0328875A2 publication Critical patent/EP0328875A2/de
Publication of EP0328875A3 publication Critical patent/EP0328875A3/de
Application granted granted Critical
Publication of EP0328875B1 publication Critical patent/EP0328875B1/de
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
    • B65H3/00—Separating articles from piles
    • B65H3/24—Separating articles from piles by pushers engaging the edges of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/30—Separating articles from piles by escapement devices; from staggered piles; from piles of articles having staggered formations, e.g. cuts or perforations

Definitions

  • the invention relates to a method and also a device for separating flat parts, which are preferably approximately horizontally one above the other in a stack and are supported on opposite edges by support cams, at least one lower part being displaced horizontally on one side as far over the support cams on one side, until it has lost the support of this support cam and hangs down and then, in the opposite direction, is also pushed away from the support cam on the other side and falls down.
  • the invention relates to separation from one to five, e.g. three flat parts and generally relates to the separation of the flat parts, the new invention is described below for better understanding and better presentation with the aid of blanks made of paper, cardboard or the like for the production of liquid packs.
  • a sleeve is formed from a flat blank using a longitudinal sealing seam and lying flat, therefore also referred to as "blank" up to this state, is fed to an erection station, where the sleeve is unfolded into its final shape and fed to a machine with at least one mandrel wheel, in which a lid made of plastic is injected on one side without a carrier material, the package thus closed on one side is filled and then closed on the opposite side by a bottom with a bottom, transported away and repackaged.
  • Paper is known to be a compliant material, even if it is coated with plastic. If you now stack the blanks on top of each other and store them several months before processing in the packaging machine, i.e. before separating and unfolding, it has been shown that the individual flat parts (e.g. the cut pieces) stick together and make their separation considerably more difficult due to their mutual stiction.
  • the stacking height of the flat parts is made very large, so that, for example, a large number of parts can be accommodated in a magazine and kept in stock, it can happen that the weight of the parts lying above the lowest flat part causes such great static friction that it cannot be guaranteed with certainty that only a single part (e.g. a single blank made of paper) is gripped and loosened during the horizontal sliding movement, but that two or even three flat parts are gripped and pushed aside with disadvantage and pushed aside and thus off the stack be separated.
  • a single part e.g. a single blank made of paper
  • the invention is therefore based on the object to improve the known methods for separating flat parts and devices so that in particular paper blanks or paper tubes from a stack - even with automated feeding of the stack - are separated reliably and with simplified means despite the increased performance of the machine can.
  • This object is achieved for the method in that, for separating in particular blanks from paper, cardboard or the like for the production of packs, the at least one flat part is fed to a second stack connected downstream of it and by this in the same method steps as the first one Stack separated and thereby separated.
  • the at least one flat part is fed to a second stack connected downstream of it and by this in the same method steps as the first one Stack separated and thereby separated.
  • flat parts e.g.
  • this two-stage process in this embodiment of the invention has the further advantage that the lower stack is preferably only allowed to grow up to a height of 20 to 30 flat parts and in other words only then allows further parts to be separated from the first upper stack if the bottom stack does not get higher than the desired maximum height.
  • the height of the lower stack of the parts to be separated is sensed and when the maximum height of the lower stack is reached, the separation of the flat parts from the stack above is interrupted.
  • the sensor for the stack height sends a signal to a controller which interrupts the feed from the upper stack so that the weight of the parts to be separated in the lower stack does not become too great.
  • the stacks of flat parts are moved on approximately horizontal tracks for separation and / or separation in a position inclined to the vertical.
  • the stack of flat parts After the stack of flat parts has been unloaded, for example into the magazines of a buffer feed device, it has proven to be advantageous to loosen the flat parts from one another within a stack simply by deforming the stack when it is inclined against the vertical. It can be particularly expedient here if the stack is inclined from the vertical in two directions which are approximately perpendicular to one another. This is the best way to break the static friction between the individual parts within the stack.
  • the upper flat parts of a stack are displaced by the inclination described here in the running direction of the feed device, for example by 15 ° against the running direction and by an equally large or different angle in the plane perpendicular to the running direction. If one moves the upper part in the feed direction backwards and also to one side in a stack from bottom to top, then the described inclination results, whereby the stack then geometrically takes the form of a parallelepiped in the form of a prism, the bases of which are parallelograms. If the stack is exactly vertical, then it can be geometrically called a cuboid, if it is inclined in the sense of the invention, then it has the shape of a prism with parallelograms as the base areas.
  • a device for separating flat parts which lie one above the other in a stack and are supported by support cams mounted in pairs in a horizontal plane at the lower end at a distance of the width of the flat parts, with approximately horizontally movably driven pushers which are in a horizontal gap are movably movable under a housing wall, and with a free space between the support cams, through which at least one flat part, after one-sided horizontal displacement, extends as far over the support cams on one side until it has lost its support, hangs down on one side and through the after it has been pushed and pushed in the opposite direction, it falls off the support cam on the other side.
  • the object is achieved in that under the first pair of support cams with the associated pushers as the first stage at a distance from a stack of parts a second pair of support cams with the associated pushers is arranged in the same structure as the first stage as a second stage that in the second stage the lowest level part is separated from the lower stack.
  • the pack can be imagined in a cuboid shape, with the milk packs currently on the market having its longitudinal direction in the vertical.
  • its longitudinal axis is thereby fixed, to which the longitudinal sealing seam of the sleeve is also arranged, which is also understood as a flat part in the sense of the invention.
  • the longitudinal axis of the sleeve also means the length of the sleeve or of the blank or of the flat part and consequently the width of the flat part measured transversely thereto.
  • the housing walls are now arranged in the device according to the invention at a distance from the width of the flat parts to be separated and have short or, in other embodiments, longer gaps in the vicinity of the support cams. Appropriately small ejectors can be pushed through the gaps, essentially in a plane perpendicular to the housing walls and in particular parallel to the plane formed by two opposite support cams of a pair, which is approximately horizontal.
  • an ejector can push a flat part to be separated down from a support cam and into the opposite gap, so that after leaving the support cam the part has lost its support and hangs cantilevered only from the opposite gap kept pinched.
  • the two stages of the method according to the invention can be carried out by arranging the two pairs of cams one above the other, with at least one flat part being separated off in the first station, which is generally arranged at the top, while only a single part is separated off from the underside in the second station arranged below of the respective stack.
  • the upper stack can therefore have up to 300 blanks lying one on top of the other, and the upper pair of support cams can have adjoining pushers, which are larger and / or coarser.
  • a photocell is provided at a distance from the pair of opposing support cams, which is electrically connected to the motor of a stack feed device with approximately horizontally movable transport magazines via a control.
  • the photocell is preferably arranged so that the heights of the stacks described above are also not exceeded, e.g. the height of 30 pieces in the bottom stack.
  • this or another photocell can also ensure that the supply of the next stack is guaranteed when the foremost stack is used.
  • the stack feed device can furthermore have a pair of link chains rotatable about shafts, the shafts being preferably inclined by 10 ° to 20 ° in relation to the vertical in a first direction and with a row of push rods on the link chains via holding arms of equal length attached, which are attached to the vertical plane perpendicular to the first direction of inclination of the shafts additionally by 10 ° to 20 °.
  • the prism shape with a parallelogram base area for the design of the respective stack has already been mentioned above.
  • the use of the separating device is particularly versatile if, according to the invention, a basket which is in the shape of a cylinder barrel and is accommodated stationary under the bottom pair of opposing support cams for receiving the respectively isolated bottom part.
  • a basket which is in the shape of a cylinder barrel and is accommodated stationary under the bottom pair of opposing support cams for receiving the respectively isolated bottom part.
  • FIG. 1 one can see schematically in the overall view on the left the stack feed device, generally designated 1, which is also shown in two different views in FIGS. 2 and 3, but is not designated 1 there; and in the conveying direction (arrow 2) of the stack 3, 3 'of blanks 4 of Fig. 1 right the separating or separating station with the schematically shown lower isolated blank 4 and its dashed arcuate web 5 shown in the unfolding station in which the blank 4 (flat part) is shown unfolded into the sleeve shape.
  • the stack feeder 1 will be explained.
  • an essentially horizontally lying plane is spanned, which is actually shown lying horizontally, while perpendicular to this imaginary plane, the top of the support rails 6, on which the stack 3 in Direction 2 are pushed, the shafts 7 of the pair of link chains 8, 8 ', which are inclined in the viewing direction of FIG. 1 by 15 ° to the rear.
  • the shafts 7 are inclined in a plane from the vertical above in the area of the upper link chain 8 with respect to the lower link chain 8 ', which is perpendicular to the actual horizontal plane and also perpendicular to the conveying direction 2.
  • Fig. 1 is shown in the conveying direction 2 "front" on the right side, i.e. the push rod labeled 10 on the right moves along the right sprocket in a semicircle out of the path in the conveying direction 2, so that the right stack 3, in FIG. 1 the third stack from the left, down from the support rails 6 into the housing of the singling station at the front can be pushed in, which is shown in Figs. 4 to 6 in detail.
  • the foremost stack is moved by the push rod 10 moving out of the conveyor track 2 against the front stop rod 17, which is not shown in FIGS. 4 to 6, but is shown in FIG. 1 as fixed in place.
  • FIGS. 4 to 6 are to be thought in the conveying direction of arrow 2.
  • the left housing wall 19 is longer than the right housing wall 20 because the wall 19 is also to be thought inclined by 15 ° to the top left against the vertical lying in the paper plane of FIGS. 4 to 6.
  • the individual blanks 4 lie exactly parallel to one another and approximately perpendicular to the two housing walls 19, 20.
  • a small gap between the wall 20 and the stack 3 can be wedge-shaped to the left of the right wall 20 arise because in particular the upper stack 3 is arranged in the position inclined in two directions.
  • the right edge of a blank 4 should be designated 21 and the left edge 22 in each case.
  • the housing walls 19, 20 are arranged at a distance from the width B in contrast to the length L.
  • a gap 25, 25' is arranged, while in addition to the lower support cams 24, 24 'each have a gap 26, 26' is attached.
  • Correspondingly high designed pushers 27, 27 ' are slidably arranged through the column 25, 25' in the direction of the horizontal double arrow 28.
  • This pusher 27, 27 ' are coarser and thicker than the next to the lower support bracket 24, 24' attached and also movable pusher 29, 29 '.
  • Each pusher 27, 27 ', 29, 29' can be moved in parallel in the direction of the double arrow 28 through the respective gap via bearing tabs 30.
  • the drive is shown schematically in Fig. 6 in that a tab 30 'on each side (ie a total of two tabs 30') is extended, both of which are connected to one another by a rod 31 and via the piston rod 32 of an air cylinder 33 in the direction of Double arrow 28 are movable.
  • the tabs 30 ' rotate about the pivot points 34th
  • a photocell 35 with a receiver 36 is attached, which is electrically controlled via a control, not shown is connected to the geared motor 16 of the stack feed device 1.
  • FIG. 4 can be taken as the starting point for the description.
  • the lower stack 3 ' has a height of 30 blanks 4.
  • the pushers 29, 29' are coupled to one another. They start around pivot point 34 Movement in the direction of arrow 28 to the left so that the right edge 21 of the bottom blank 4 is gripped and pushed by the right support cam 24 'to the left.
  • the left edge 22 of the blank 4 migrates into the gap 26 because this is released by the retraction of the left ejector 29.
  • This shift in the direction of arrow 28 to the left takes place in the direction of one, namely the left side, until the blank 4 has lost the support of the right support cam 24 'and now cantilevered in the illustration of FIG. 5 hanging down while it is on the left side is held clamped in the gap 26.
  • the difference in the activity and effect of the upper pushers 27, 27 'at the lower end of the upper stack 3 to the lower separating station of the stack 3' is that the pushers, as is also shown schematically in FIGS. 4 to 6, are thicker and are roughly designed and, if necessary, separate two or even four blanks 4 from the upper stack 3 at the same time.
  • FIG. 5 shows this state with the example of two blanks 4 shown.
  • Fig. 5 shows in the upper area how the right ejector 27 'just completely fills the right upper gap 25' and has pushed two blanks 4 into the upper left gap 25 at the same time, because this is released by retracting the slide 27. Now the two blanks 4 hang cantilevered and are only clamped on the left side by the support cam 23 or the gap 25 arranged next to it. If, in the transition to the state of FIG. 6, the left ejector 27 is pushed through the gap 25 in the direction of the double arrow 28 to the right, the last holder of the two lower blanks 4 is released and they fall freely through the space 18 onto the lower stack 3 '. This activity can be repeated until the photocell stops pushing the upper pushers 27, 27 'because the height of the lower stack 3' is reached.
  • a further photocell (not shown) scans this state and sends a signal to a controller which switches on the geared motor 16, which now pushes the push rods 10 by the length of one Stack magazine 36 in the direction of arrow 2 of FIG. 1 on the right. This new stack then falls onto the upper stack 3 of FIG. 4, so that the feeding and filling process is completed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • De-Stacking Of Articles (AREA)
  • Forming Counted Batches (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Battery Mounting, Suspending (AREA)
EP89100563A 1988-02-18 1989-01-13 Verfahren und Vorrichtung zum Vereinzeln von ebenen Teilen Expired - Lifetime EP0328875B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89100563T ATE103570T1 (de) 1988-02-18 1989-01-13 Verfahren und vorrichtung zum vereinzeln von ebenen teilen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3804946A DE3804946A1 (de) 1988-02-18 1988-02-18 Verfahren und vorrichtung zum vereinzeln von ebenen teilen
DE3804946 1988-02-18

Publications (3)

Publication Number Publication Date
EP0328875A2 EP0328875A2 (de) 1989-08-23
EP0328875A3 EP0328875A3 (en) 1990-05-16
EP0328875B1 true EP0328875B1 (de) 1994-03-30

Family

ID=6347591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100563A Expired - Lifetime EP0328875B1 (de) 1988-02-18 1989-01-13 Verfahren und Vorrichtung zum Vereinzeln von ebenen Teilen

Country Status (14)

Country Link
EP (1) EP0328875B1 (ja)
JP (1) JPH02181284A (ja)
KR (1) KR890012875A (ja)
AR (1) AR244173A1 (ja)
AT (1) ATE103570T1 (ja)
AU (1) AU619248B2 (ja)
BR (1) BR8900732A (ja)
DE (2) DE3804946A1 (ja)
DK (1) DK71689A (ja)
ES (1) ES2050724T3 (ja)
FI (1) FI890115A (ja)
NO (1) NO890680L (ja)
NZ (1) NZ228015A (ja)
TR (1) TR25109A (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4620944B2 (ja) * 2003-10-16 2011-01-26 キヤノン株式会社 積和演算回路及びその方法
JP6238436B2 (ja) * 2013-09-06 2017-11-29 国立大学法人九州工業大学 電流電圧変換回路と共に用いるバラツキ補償回路
JP6784162B2 (ja) 2016-12-13 2020-11-11 富士通株式会社 情報処理装置、プログラム及び情報処理方法
CN108328299B (zh) * 2018-02-28 2023-08-04 福州大学 一种曲柄滑块推送装置及其工作方法
JP6985988B2 (ja) * 2018-06-21 2021-12-22 株式会社日立製作所 ニューラルネットワーク回路
JP7027371B2 (ja) * 2019-06-03 2022-03-01 株式会社東芝 ニューラルネットワークの演算装置、ニューラルネットワーク、ニューラルネットワークの制御方法
DE202023000233U1 (de) 2023-02-03 2023-04-11 Tobias Raymund Klostermann Vorrichtung zum Stapeln von Gegenständen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723602A (en) * 1950-03-18 1955-11-15 Clinton Foods Inc Automatic partition strip feeding mechanism
US2744551A (en) * 1954-08-16 1956-05-08 Gen Box Distributors Veneer feeder and conveyor unit
DE1187246B (de) * 1962-09-25 1965-02-18 Telefunken Patent Einrichtung zum Vereinzeln flacher Sendungen, wie beispielsweise Briefe
CH446188A (de) * 1966-01-15 1967-10-31 Tagers Gmbh Verfahren und Vorrichtung zum Erfassen und Vereinzeln der Bleche eines Blechstapels, sowie zum Transportieren der einzelnen Bleche zu einer Arbeitsstelle
DE1561418A1 (de) * 1967-03-08 1970-03-19 Nordischer Maschb Rud Baader Vorrichtung zum Entnehmen von Zuschnitten aus einem Stapel
FR1568091A (ja) * 1968-01-26 1969-05-23
US4093207A (en) * 1976-12-01 1978-06-06 R. A. Jones & Co. Inc. Magazine and feeder for carton blanks
DE8122993U1 (de) * 1981-08-05 1983-01-13 Maschinenfabrik Fr. Niepmann GmbH & Co KG, 5820 Gevelsberg Vorrichtung zum Vereinzeln von blattförmigen Zuschnitten
DE3247563A1 (de) * 1982-12-22 1984-06-28 Rovema Verpackungsmaschinen GmbH, 6301 Fernwald Vorrichtung zur zufuehrung von faltschachtelzuschnitten zu einer kartoniermaschine
DE8306984U1 (de) * 1983-03-10 1984-01-26 Leuprecht, Karl, 8904 Friedberg Ablagefach zur aufnahme von biegsamen, blattfoermigem material, wie einwickelpapier, frischhaltefolie oder dgl.
GB2150920B (en) * 1983-11-28 1987-11-11 Mead Corp Equipment and method for feeding packaging blanks to a packaging machine
DD235228B1 (de) * 1985-03-18 1989-04-05 Esda Strumpfkombinat Veb Einrichtung zur einhaltung einer konstanten stapelhoehe in einem magazin

Also Published As

Publication number Publication date
DE3804946A1 (de) 1989-08-31
TR25109A (tr) 1992-09-28
JPH01247342A (ja) 1989-10-03
EP0328875A2 (de) 1989-08-23
DK71689D0 (da) 1989-02-16
FI890115A (fi) 1989-08-19
KR890012875A (ko) 1989-09-19
AU3008189A (en) 1989-08-24
JPH02181284A (ja) 1990-07-16
AR244173A1 (es) 1993-10-29
AU619248B2 (en) 1992-01-23
ATE103570T1 (de) 1994-04-15
ES2050724T3 (es) 1994-06-01
EP0328875A3 (en) 1990-05-16
DK71689A (da) 1989-08-19
DE58907314D1 (de) 1994-05-05
NO890680L (no) 1989-08-21
FI890115A0 (fi) 1989-01-10
NO890680D0 (no) 1989-02-17
BR8900732A (pt) 1989-10-17
NZ228015A (en) 1991-10-25

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