EP0513501B1 - Procédé et dispositif à travailler, en particulier à contrôler et/ou coder, des bouteilles en plastique ou pareilles - Google Patents

Procédé et dispositif à travailler, en particulier à contrôler et/ou coder, des bouteilles en plastique ou pareilles Download PDF

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Publication number
EP0513501B1
EP0513501B1 EP92105094A EP92105094A EP0513501B1 EP 0513501 B1 EP0513501 B1 EP 0513501B1 EP 92105094 A EP92105094 A EP 92105094A EP 92105094 A EP92105094 A EP 92105094A EP 0513501 B1 EP0513501 B1 EP 0513501B1
Authority
EP
European Patent Office
Prior art keywords
bottles
conveyor
inspection
bottle
inspection lines
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
EP92105094A
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German (de)
English (en)
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EP0513501A1 (fr
Inventor
Othmar Stieger
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.)
Elpatronic AG
Original Assignee
Elpatronic AG
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 Elpatronic AG filed Critical Elpatronic AG
Publication of EP0513501A1 publication Critical patent/EP0513501A1/fr
Application granted granted Critical
Publication of EP0513501B1 publication Critical patent/EP0513501B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/3404—Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level
    • B07C5/3408—Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level for bottles, jars or other glassware
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/361—Processing or control devices therefor, e.g. escort memory

Definitions

  • the aforementioned patent specification DE 38 29 025 C2 relates to a method for applying and reading a code from optically readable code markings.
  • the code is applied using a laser.
  • the devices used for feeding and conveying the bottles away and for transporting them along the test section can correspond to those described in the patent specification DE 37 22 422 C2, which also goes back to the applicant.
  • the latter patent relates to an inspection machine for plastic bottles with which a number of parameters can be checked, namely whether the bottom, neck and opening are perpendicular to the bottle axis, whether the bottle height and volume have the correct values, etc. If such an inspection machine follows one Blow molding machine is used, laser code marks are produced, which can then be checked for correctness using a sensor.
  • devices are usually provided, by means of which the bottles are fed to a rotatable carousel in order to be moved with it on an arcuate test section, and are removed from the carousel again after the test has been carried out.
  • These devices include at least a first conveyor for feeding the bottles, an input star wheel as a transfer device for transferring the bottles to the test section, the transport device of which is the cyclically operated carousel, an output star wheel as a delivery device for discharging the bottles from the test section, and a second conveyor for conveying them away of the bottles, and a laser as a processing device.
  • a carousel as a test section has the advantage that it allows in a simple manner to bring the bottles which are fed to the test section to the mutual distance required for the machining process in a simple manner, but this takes up a lot of space.
  • the object of the invention is to improve a method and a device of the type mentioned in such a way that the number of plastic bottles or the like which can be processed per hour. can be increased significantly without increasing the previously usual bottle conveying speed and without increasing the space requirement, but at least that the device allows the mutual spacing of the plastic bottles or the like required for the machining process. easier and with less space than through a Carousel can be reached.
  • one bottle after the other is not transferred to a test section, as in the prior art, but two bottles are transferred simultaneously to a first and a second test section.
  • the bottles are processed simultaneously on the test sections, i.e. date codes or condition checks are carried out on two bottles at the same time (for example with regard to volume, shape defects, tightness, etc.), and at the end of the test sections two bottles are placed simultaneously have been processed, submitted at the same time and carried away together. If one bases the same bottle conveying speed in front of and behind the test sections as in the prior art, the bottle processing performance can be exactly doubled by the method and the device according to the invention, that means from 3000 to 3500 bottles per hour to 6000 to 7000 bottles per hour increase.
  • This advantage is also achieved by eliminating the carousel required in the prior art, which according to the invention is replaced by the two test sections on which the bottles are processed in parallel by two processing devices. Eliminating the carousel also saves a lot of space. This is another important advantage because such devices are connected to a blow molding machine Follower machine are used, for which the bottle manufacturer is willing to sacrifice as little space as possible.
  • the first and second conveyors can consist of constantly running conveyor belts.
  • the space requirement of the device is particularly small, since the test sections extend in a straight line on both sides of the conveyor.
  • the contact area between the arms of the double cranks and the bottles is kept as small as possible.
  • the two processing devices each consisting of a laser for code application, can be arranged on opposite sides of the test sections in the embodiment of the invention according to claim 12 or on one and the same side of one of the test sections in the embodiment of the invention according to claim 13, the latter Embodiment of the invention, the space requirement of the device is further reduced.
  • FIGS. 1-3 shows an embodiment of a device for coding plastic bottles 10 in three different operating states.
  • plastic bottles it could also be glass bottles and instead of bottles it could be containers of any kind.
  • the bottles are plastic and that the device is connected downstream of a blow molding machine which is arranged to the left of it in FIGS. 1-3 (and not shown).
  • the bottles 10 are supplied to the device by means of a first conveyor which, in the illustration in FIGS. 1-3, moves in the direction of conveyance F indicated by arrows and from a conveyor only shown in FIG. 4 (top), conveyor belt 12 running constantly.
  • the conveyor belt 12 extends under the device in FIGS. 1-3 from left to right and thus also forms a second conveyor for conveying the bottles 10 out of the device.
  • the second conveyor could also be a constantly running separate conveyor belt that is driven synchronously or asynchronously with the conveyor belt 12 of the first conveyor. In the following it is assumed that the conveyor belt 12 forms both the first and the second conveyor.
  • the bottles 10 are conveyed between two longitudinal boundaries 14, 16 by means of the conveyor belt 12 on which they stand.
  • the longitudinal boundaries 14, 16 have two interruptions, so that bottles 10 can be removed from the conveyor belt 12 by means of a transfer device, generally designated 18 in FIG. 4, or bottles 10 can be returned to the conveyor belt 12 by means of a delivery device, generally designated 28 in FIG. 5 .
  • a transfer device generally designated 18 in FIG. 4
  • bottles 10 can be returned to the conveyor belt 12 by means of a delivery device, generally designated 28 in FIG. 5 .
  • two arms 18a, 18b of the transfer device 18 and two arms 28a, 28b of the dispensing device 28 are shown, which according to FIGS. 4 and 5 have narrow, projecting contact surfaces 18a ', 18b' and 28a ', 28b' come to rest on the bottles 10, which is described in more detail below.
  • first test section A On both sides of the first conveyor and at a distance from it in each case are a first test section A with a first cyclically actuated transport device in the form of an endless conveyor belt 20a or a second test section B separated from the first test section A with a second cyclically actuated transport device in the form of an endless one Conveyor belt 20b provided, with each conveyor belt 20a, 20b projecting drivers 22a and 22b, the division, that is, their mutual center distance is at least slightly larger than the bottle diameter.
  • the two conveyor belts 20a, 20b of the two test sections A, B are actuated jointly and synchronously via a stepping transmission 24, which is only schematically indicated in FIG. 1, via a cam toothed belt 26.
  • Each Conveyor belt 20a, 20b has two elongated runs parallel to the direction of conveyance F and is sheared at its ends adjacent to the transfer or delivery device 18, 28 around deflection rollers 30a and 30b.
  • the division of the drivers 22a and 22b and the conveyor belt deflection on the deflection rollers 30a and 30b are selected such that a division of the drivers by which the conveyor belt is moved at each cycle, the movement of a driver by 180 ° from one to the other run corresponds to one or the other deflection roller 30a, 30b.
  • This configuration of the transport devices ensures that at the end of each transport device, that is to say at the end of each test section A, B, the last driver is in a zero or rest position before being exactly 180 ° from the end of the one strand at the next cycle Is moved at the beginning of the next run, where it again assumes a zero or rest position. In this way, the wear of the transport devices is kept low.
  • each conveyor belt can consist of a chain, on the links of which the substantially triangularly shaped drivers are fastened.
  • the transfer device 18 has a double crank 19, which consists of a rotatably mounted circular disk 18c, on the circumference of which two crank arms 18d, 18e are rotatably articulated and which are on their opposite ends the arms 18a and 18b are pivoted.
  • the arms 18a, 18b are slidably mounted in a guide 38 in the manner indicated in FIG. 4. In FIG. 4 above, the arms 18a, 18b assume the starting position, which they also have in FIG. 1.
  • the crank arms 18c, 18e move into the position shown in FIG.
  • the dispensing device 28 has the same structure as the transfer device 18 and accordingly consists of a double crank, designated 29 as a whole, with two crank arms 28d, 28e, which are pivotably articulated on the arms 28a and 28b.
  • the arms 28a, 28b are slidably supported in a guide 48 by means of sliders.
  • the double crank 29 runs synchronously with the double crank 19.
  • the arms 18a, 18b and 28a, 28b each come to rest on the bottles with their narrow, projecting contact surfaces 18a ', 18b' and 28a ', 28b'.
  • a jam stop 32 for the bottles 10 is arranged in the conveying direction F behind the transfer device 18 and thus at the end of the first conveyor.
  • the position of the congestion stop 32 is selected such that a bottle 10 lying against the congestion stop and the bottle 10 following it lie opposite two pockets which are formed between two drivers 22a of the conveyor belt 20a or between two drivers 22b of the conveyor belt 20b .
  • a jam block 34 is arranged in the conveying direction F in front of the transfer device in FIG. 1 to the left of the arm 18b and can be moved into the path of the bottles in order to prevent premature bottle overrun while the arms 18a, 18b of the transfer device 18 are actuated .
  • the traffic jam lock is withdrawn in time so that the bottles 10 fed by the constantly running first conveyor can advance again to the traffic jam stop 32, whereupon the traffic jam lock 34 is again moved into the path of the bottles in the manner shown.
  • the processing of the plastic bottles consists of applying a code with the aid of two lasers 40a, 40b, which are arranged on opposite sides of the test sections A, B.
  • the two lasers 40a, 40b are actuated simultaneously in order to apply a code to each of these bottles.
  • processing devices for volume, shape error, tightness control etc. could be used.
  • the laser 40a could be expedient to arrange the laser 40a on the same side as the laser 40b of one of the test sections, which is indicated in FIG. 1 by the laser 40a shown in dashed lines to the left of the laser 40b.
  • the laser 40a would throw the laser beam onto a mirror arrangement 42, which would direct it onto the bottle 10 in the test section A.
  • the constantly running conveyor belt 12 constantly feeds bottles 10 which are dammed up at the traffic jam stop 32 and between the longitudinal boundaries 14, 16, as shown in FIG. 1.
  • bottles 10 which are dammed up at the traffic jam stop 32 and between the longitudinal boundaries 14, 16, as shown in FIG. 1.
  • the conveyor belts 20a, 20b of the two test sections A and B have come to a standstill in the position shown in FIG shifted up into test section A or down into test section B. Because of the gentle treatment of the not yet hardened bottles 10, this lifting movement takes place sinusoidally via the double cranks 19 and 29, respectively.
  • the conveyor belts 20a, 20b are then moved one cycle at a time by one bottle division.
  • Fig. 2 shows that at the same time as two bottles are transferred to test sections A and B, two bottles from the latter are delivered to the second conveyor.
  • 3 shows the position of the device after the conveyor belts 20a, 20b and also the rows of bottles between the longitudinal boundaries 14, 16 have each been moved further by one bottle division. After moving on by another bottle division, the device is again in the position shown in FIG. 1.
  • the above-mentioned sinusoidal lifting movements of the double cranks 19, 29 are shown schematically as a characteristic curve in FIGS. 4 and 5 at the top right next to the double crank.
  • An exemplary embodiment of the invention has been described above in which the two test sections A and B arranged on both sides of the conveyor 12.
  • An alternative embodiment consists, for example, of using only the test section A. If each time a supplied bottle is transferred to the test section and a bottle is released from the test section, the output cannot be doubled, but at least with the device designed in this way, the mutual spacing of the plastic bottles or the like required for the machining process can be achieved. easier and with less space than a carousel.

Landscapes

  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Specific Conveyance Elements (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Sorting Of Articles (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Claims (13)

  1. Procédé de traitement, notamment de codage et/ou de contrôle, de bouteilles en matière plastique ou analogues, par
    A) introduction des bouteilles et transfert à au moins une voie de contrôle,
    B) transport intermittent de chaque bouteille le long de la voie de contrôle,
    C) traitement de chaque bouteille au cours d'une pause de transport et
    D) évacuation de chaque bouteille hors de la voie de contrôle et éloignement,
    caractérisé
    a) en ce que, pour chaque paire de deux bouteilles introduites à la suite l'une de l'autre, les bouteilles sont transférées en même temps respectivement à une première et à une seconde voies de contrôle,
    b) en ce que les bouteilles sont transportées d'une manière synchrone le long des deux voies de contrôle,
    c) en ce qu'au cours de la pause de transport, les deux bouteilles transférées en même temps aux voies de contrôle sont traitées en même temps et
    d) en ce que les bouteilles qui ont été traitées en même temps sont évacuées en même temps des voies de contrôle et sont éloignées en commun.
  2. Procédé selon la revendication 1, caractérisé en ce qu'a l'étape c), un code est appliqué sur l'une et l'autre des bouteilles au moyen d'un rayonnement laser.
  3. Installation de traitement, notamment de contrôle et/ou de codage, de bouteilles en matière plastique ou analogues, comprenant
    - un premier transporteur pour introduire des bouteilles,
    - au moins une voie de contrôle comportant un dispositif de transport actionné de manière intermittente,
    - un dispositif de transfert pour transférer les bouteilles à la voie de contrôle,
    - au moins un dispositif de traitement associé à la voie de contrôle et
    - un dispositif d'évacuation pour évacuer les bouteilles de la voie de contrôle à un second transporteur servant à éloigner les bouteilles,
       caractérisée
    - en ce que, sur chacun des deux côtés du premier transporteur (12) et, pour chaque côté, à distance de ce transporteur, il est prévu respectivement une première voie de contrôle (A) et une seconde voie de contrôle (B), séparée de la première, qui comportent respectivement un premier et un second dispositifs de transport (20a, 20b) actionnés d'une manière intermittente,
    - en ce que le dispositif de transfert (18) est agencé d'une façon telle que deux bouteilles (10) qui y sont introduites l'une à la suite de l'autre peuvent être transférées en même temps respectivement au premier et au second dispositifs de transport (20a, 20b),
    - en ce que l'actionnement des deux dispositifs de transport (20a, 20b) a lieu d'une manière synchrone,
    - en ce que deux dispositifs de traitement (40a, 40b) sont disposés à côté des voies de contrôle (A, B), et
    - en ce que le dispositif d'évacuation (28) est agencé de façon à évacuer en même temps deux bouteilles (10) respectivement de la première et de la seconde voies de contrôle (A, B) vers le second transporteur qui sert à éloigner les bouteilles (10) en commun.
  4. Installation selon la revendication 3, caractérisée en ce qu'à l'extrémité du premier transporteur (12), il est disposé une butée (32) d'accumulation des bouteilles (10), et en ce que le dispositif de transfert (18) est situé en amont de la butée d'accumulation (32) suivant la direction de transport (F).
  5. Installation selon la revendication 4, caractérisée en ce que chacun des premier et second transporteurs est constitué d'une bande transporteuse (12) en déplacement constant, et en ce qu'un organe de blocage d'accumulation (34) est disposé en amont du dispositif de transfert (18) suivant la direction de transport (F) et est agencé de façon à pouvoir être déplacé sur la trajectoire des bouteilles (10).
  6. Installation selon l'une des revendications 3 à 5, caractérisée en ce que chacun des deux dispositifs de transport est constitué d'une bande transporteuse sans fin (20a, 20b) comportant des organes d'entraînement (22a, 22b), en saillie sur cette dernière, dont l'écartement est au moins légèrement supérieur au diamètre des bouteilles.
  7. Installation selon la revendication 6, caractérisée en ce que chaque bande transporteuse (20a, 20b) comporte deux brins allongés parallèles à la direction de transport et est l'objet d'une déformation en cisaillement, autour de rouleaux de renvoi (30a, 30b), à ses extrémités voisines respectivement du dispositif de transfert (18) et du dispositif d'évacuation (28).
  8. Installation selon la revendication 7, caractérisée en ce que les deux dispositifs de transport (20a, 20b) des deux voies de contrôle (A, B) sont agencés de façon à pouvoir être actionnés en commun, par l'intermédiaire de courroies crantées à cames (26), au moyen d'un mécanisme pas-à-pas.
  9. Installation selon l'une des revendications 6 à 8, caractérisée en ce que, dans chaque bande transporteuse (20a, 20b), l'écartement des organes d'entraînement (22a, 22b) et l'écart de renvoi de la bande transporteuse sont choisis de façon qu'un pas des organes d'entraînement (22a, 22b), pas dont la bande transporteuse (20a, 20b) avance à chaque pas d'avance, corresponde au déplacement d'un organe d'entraînement (22a, 22b) de 180° d'un brin à l'autre autour respectivement d'un rouleau de renvoi (30a) ou de l'autre (30b).
  10. Installation selon l'une des revendications 3 à 9, caractérisée en ce que le dispositif de transfert (18) et le dispositif d'évacuation (28) comportent respectivement deux doubles manivelles (19, 29) qui se déplacent d'une manière synchrone et qui déplacent chacune, suivant un mouvement de poussée sinusoïdal, deux bras (18a, 18b, 28a, 28b) qui sont guidés d'une manière coulissante, l'une en faisant avancer les bras associés vers l'un des deux transporteurs et l'autre en éloignant de l'autre transporteur les bras qui lui sont associés, afin de transférer deux bouteilles (10) sur les voies de contrôle (A, B) et en même temps d'évacuer deux autres bouteilles (10) des voies de contrôle (A, B).
  11. Installation selon la revendication 10, caractérisée en ce que chaque bras (18a, 18b, 28a, 28b) comporte une étroite surface d'appui (18a', 18b', 28a', 28b'), en saillie, qui vient s'appliquer sur la bouteille (10).
  12. Installation selon l'une des revendications 3 à 11, caractérisée en ce que les deux dispositifs de traitement sont constitués respectivement de deux lasers (40a, 40b), permettant d'appliquer un code, qui sont disposés sur des côtés opposés des voies de contrôle (A, B).
  13. Installation selon l'une des revendications 3 à 11, caractérisée en ce que les deux dispositifs de traitement sont constitués respectivement de deux lasers (40a, 40b), permettant d'appliquer un code, qui sont disposés l'un et l'autre sur un côté de l'une (A) des voies de contrôle, le rayon laser de l'un des deux lasers (40a, 40b) pouvant être renvoyé au moyen d'un agencement de miroir (42) sur l'autre voie de contrôle (B).
EP92105094A 1991-05-14 1992-03-25 Procédé et dispositif à travailler, en particulier à contrôler et/ou coder, des bouteilles en plastique ou pareilles Expired - Lifetime EP0513501B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH143191 1991-05-14
CH1431/91 1991-05-14

Publications (2)

Publication Number Publication Date
EP0513501A1 EP0513501A1 (fr) 1992-11-19
EP0513501B1 true EP0513501B1 (fr) 1994-12-14

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EP92105094A Expired - Lifetime EP0513501B1 (fr) 1991-05-14 1992-03-25 Procédé et dispositif à travailler, en particulier à contrôler et/ou coder, des bouteilles en plastique ou pareilles

Country Status (7)

Country Link
EP (1) EP0513501B1 (fr)
AT (1) ATE115441T1 (fr)
DE (1) DE59200942D1 (fr)
FI (1) FI922140A (fr)
MX (1) MX9202211A (fr)
NO (1) NO921891L (fr)
ZA (1) ZA922250B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU703594B2 (en) * 1994-11-01 1999-03-25 Horticultural Automation Limited Article grading apparatus
DE102006042711B4 (de) 2006-09-12 2012-06-14 Krones Aktiengesellschaft Verfahren und Vorrichtung zur Herstellung von Kunststoffverpackungsbehältern
CN109821756B (zh) * 2019-03-29 2024-05-03 江苏揽鑫新能源科技有限公司 一种工字轴轮盘自动分拣装备
CN112517417A (zh) * 2020-12-14 2021-03-19 皓星智能装备（东莞）有限公司 双转盘全自动检测机及其检测方法
CN113984773B (zh) * 2021-10-18 2024-05-14 楚天科技股份有限公司 一种灯检机合格瓶出料控制方法、系统及介质

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Publication number Priority date Publication date Assignee Title
DE3424360A1 (de) * 1984-07-03 1986-01-16 Conto control Braschos KG, 5900 Siegen Vorrichtung zum aussortieren von als fehlerhaft erkannten verpackungseinheiten
IT1225027B (it) * 1988-07-28 1990-10-31 Acma Spa Apparecchiatura per smistare fra piu' linee di trasferimento dei prodotti da una linea di avanzamento

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FI922140A (fi) 1992-11-15
EP0513501A1 (fr) 1992-11-19
MX9202211A (es) 1992-11-01
DE59200942D1 (de) 1995-01-26
ATE115441T1 (de) 1994-12-15
FI922140A0 (fi) 1992-05-12
NO921891D0 (no) 1992-05-13
ZA922250B (en) 1992-12-30
NO921891L (no) 1992-11-16

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