• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a tube manufacturing apparatus comprising means for feeding a tube tube (16) having a tube imprinting which comprises identical individual patterns (18) provided at regular intervals along a feed direction (14), means (12) for cutting the tube tube (16) in a cutting direction between adjacent control elements (24) associated with the individual patterns (18) and the cutting means, which generate an activation signal (A) for the cutting means in response to an optical scanning of the tube tube (16), the control means comprising an optical detector unit (20), which has an effective detector transverse extent of not more than 10%, preferably not more than 2%, a maximum width of the individual patterns (18) along the cutting direction and / or perpendicular to the feed direction (14), and the control means comparison and / or Having correlation means, the current detector data of the detector unit (20) entsprec Link a strip-shaped section of one of the individual patterns (18) with detector data from a strip-shaped section of an upstream of the individual patterns (18) and / or with stored reference data of the individual patterns (18) and generate the activation signal from this link. Furthermore, the invention relates to a method for operating the inventive device.
    公开号:CH706114B1
    申请号:CH00392/13
    申请日:2013-02-04
    公开日:2017-02-28
    发明作者:Bärtschi Christoph
    申请人:Packsys Global (Switzerland) Ltd；
    IPC主号:
    专利说明:

    The invention relates to a tube manufacturing apparatus according to the preamble of independent claim 1. Furthermore, the present invention relates to a method for producing a tube according to the preamble of independent claim. 7
    Both generic devices, as well as generic methods are well known in the art, which is to refer to pre-published property rights of the Applicant. Typically, in a generic method for producing a tube (more precisely: packaging tube, in the context of the present application the term "tube" is to be used for such a packaging tube), a so-called tube tube (usually using a suitable dome) is produced and subsequently on a length required for a single tube isolated. With such a pipe section is then a further processing up to a finished filled or fillable Verpackungstube.
    In known from the prior art devices and methods, it is assumed to be known that the tube tube, which is already printed with a tube printing in the form of provided at regular intervals along the tube tube individual patterns, so isolated (cut) must be in that the intersection between successive individual patterns (which in this respect then corresponds to a respective user imprint) must take place and not, destroying this user imprint, within such a single pattern.
    For this reason, it is to be understood as known from the prior art, the respective individual patterns markings, typically in the form of the pattern adjacent provided or integrated in this print marks assign, which are optically detected by the known tube manufacturing apparatus and then in response to the optical detection of the cutting process by driving generic cutting means are separated with the activation signal at the desired position between successive individual patterns.
    However, in order to ensure a sufficient detection reliability and thus reliability of the cutting process, it is typically necessary to design these markings optically salient or reliable optically detectable, which may affect a (quality-critical) overall visual impression of a single pattern of a packaging tube; optically reliably detectable, such a mark primarily by being significantly different from the adjacent or surrounding print pattern, and this promotes an adverse overall aesthetic effect. UV markers are able to solve the aesthetic problem, however, this costs (one more ink).
    Not least because of this problem, it might be considered to detect the complete single pattern (during the continuous feeding of the tube tube) in the manner of a planar optical pattern detection and then to determine a suitable cutting position (between successive adjacent individual patterns) from such a detection signal , However, such a procedure requires a high level of sensor and evaluation technical effort, because in order to achieve a sufficiently low error rate, in particular for the industrial production context, such full-surface pattern recognition must take place with high resolution. However, this requires correspondingly increased computing effort, which in turn not only increases the cost of a required control hardware, but, due to corresponding computing and processing times, would limit a de facto supply and thus processing speed of a generic tube manufacturing device. However, since again in the competitive environment of tube production high throughput speeds of the tubing tubing to be cut and correspondingly short clock cycles are critical to success, such a procedure is only conditionally suitable.
    The object of the present invention is therefore to improve a generic tube manufacturing device with respect to the functionality of the control means for triggering the cutting process or for activating the cutting means so that on the one hand separate, potentially optically disturbing markings on or in the single pattern are not required , At the same time, however, only from the single pattern a fast, non-continuous production process slowing detection of the individual pattern or the gap is made possible as a basis for triggering the cutting process. Furthermore, a correspondingly improved method for producing a (packaging) tube is to be created.
    The object is achieved by the tube manufacturing apparatus having the features of independent claim 1 and the manufacturing method according to independent claim 7. Advantageous developments are described in the dependent claims.
    In accordance with the invention advantageously sit the control means in an optical detector unit, based on a feeding direction of the (continuous) tube tube, only a limited effective for the detection transverse extent, wherein in the present invention and based on a maximum width of Single pattern this transverse extent is not more than 10%, preferably not more than 2%.
    In this way, then the inventive optical detector unit scans in the manner of a line or stripe image only from an elongated section of the single pattern, which runs parallel to the feed direction. Accordingly minimized or limited so that both the hardware and a required for data processing computational effort: Thus, namely, the optical detector unit with a correspondingly narrow detector transverse extent much easier and cheaper to realize, as well as a correspondingly reduced amount of data line or strip-shaped section is significantly less than the data amount of a frame capture of the individual patterns.
    However, since in the present context of tube production typically only small variations or deviations of successive individual patterns are present in the transverse direction, the present invention provided in the control means comparison or correlation means reach on the basis of this narrow section a sufficient detection and detection accuracy in In view of a current position along the feed direction. On the one hand, it is advantageous and preferable, for example in the manner of an otherwise known correlation, to compare data of the detected strip-shaped section of an upstream of the individual patterns with the data of a currently viewed strip-shaped section and thus (with corresponding detection of the periodicity) data along a current longitudinal position to obtain the feed direction from which in turn directly the activation signal for the cutting unit can be generated.
    In addition or alternatively, it is on the other hand of the invention comprises currently detected by the optical detector unit strip or line data previously recorded and suitably stored reference data comparatively assign, so that also an accurate current position determination and thus deriving the activation signal can be done ,
    To realize the invention, it is not necessary that the optical detector unit along the feed direction scans the full length of a single pattern; For (further) reduction of a data volume and thus for the potential speed increase, it is again sufficient to detect only one (sufficiently significant) section in the longitudinal direction, which should typically cover at least 20% of a maximum length of a single pattern.
    The term "single pattern" in the context of the present invention is not necessarily to reduce such printing or embossing representations on a (useful) surface of the tube tube, which are isolated from each other and formed on a neutral background. Rather, as a "single pattern" in the context of the present invention, any sampling, printing, embossing or the like on the tube to understand, which, according to a sequence of later individual tubes, repeated periodically and continuously on the tube and at a respective predetermined separation point between is to separate adjacent patterns. It is in the particular realization of the present invention and preferably the tube printing designed with their individual patterns so that no visually protruding from a single pattern and / or remote markings are present, the outside of a decorative or user purpose, only for generating an activation signal for a Scanning be scanned and evaluated.
    While the present invention, based on a maximum width of the individual pattern (which should also typically correspond to a maximum width of the tube tube) is narrow and so far scans along the feed direction extending strip or line-shaped cutting pattern, can be in the practical realization and for further optimization reduce the necessary effective for a detection detector lateral extent to an image sensing element (pixels), so that, approximately in the manner of a point or line sensor, transversely to the feed direction only this acts a detection element and accordingly a digital only generates a bit wide pattern. In accordance with the feed (movement) along the feed direction, in the extreme case with only one image capture element, one-dimensional line detection of the line-shaped or strip-shaped detail from the single pattern can be realized and used as a basis for generating the activation signal. Accordingly, minimized, in addition to this reduced detector hardware, the computational effort, so that no delay effects on fast throughput speeds or short production clock cycles are to be expected by the detection according to the invention.
    In preferred embodiments of the invention, it is provided to design the optical detector unit without contact and either realized by means of a purely passive image sensing element (or a plurality of such elements), alternatively realized in otherwise known manner (eg with a laser or the like punkförmiger light source ) To provide illumination means, which then support or simplify the optical scanning in the inventive manner.
    According to the present invention, it is also advantageous and preferable to generate any reference data used for the evaluation of currently detected detector data using the same tube manufacturing device, wherein approximately in a reference mode then recorded on the basis of a tube provided with a reference pattern, the reference data and stored appropriately as a basis for the continuous manufacturing process. It is also advantageous according to further development and provided to provide means in the manner of an otherwise known pointing, teaching or teach mode, with which a desired or intended cutting position can be marked or determined by other means on a stationary tube tube, for example Data are collected and then in turn the basis for generating the activation signal is created in comparison with detected actual data in continuous operation.
    As a result, it allows the present invention in a surprisingly simple, yet powerful way, with minimal sensor effort and without the need for separate, visually annoying cutting marks in Nutzmuster reliably generate the activation signal for the cutting means reliable and highly reliable, so that high production quality with the best possible Quality of the printed tube product can be combined.
    Further advantages, features and details will become apparent from the following description of preferred embodiments and from the drawings; these show in the<Tb> FIG. 1 <SEP> is a schematic block diagram of the tube manufacturing device according to the invention according to a first exemplary embodiment of the present invention and<Tb> FIG. FIG. 2 shows a plan view of a tube tube with individual patterns to illustrate a strip-shaped detail of the individual patterns detected by the detector unit of the exemplary embodiment of FIG. 1. FIG.
    Fig. 1 shows a schematic side view of the basic structure of a tube manufacturing apparatus according to a first embodiment of the invention, wherein the representation is limited to a range between a unit 10 for tube production of a tube tube (typically made of a printed film material) in the right area of Representation and a cutting unit 12 in the left-hand area of the representation. An otherwise known tube tube 16 continuously guided along a feed direction (arrow direction) 14 out of the unit 10 is shown schematically with a plurality of identical individual patterns 18, which are provided at regular intervals from one another along the continuous tube 16 and guided to the cutting unit 12. to be isolated there in an otherwise known and not shown in detail in the figure way between the individual patterns 18 in a pipe section 19, which is then completed by further processing operations to a filled or fillable tube.
    Above the continuously guided tube tube 16, a detector unit 20 is provided, which has an optical point detector (Fig. 2), which consists of only a single pixel-like image sensing element 22 in the illustrated embodiment. A continuous detector function of this element 22 then makes it possible, as can be seen from the plan view of FIG. 2, to scan a line-shaped section from a respective individual pattern 18 passed underneath.
    The image signal of the detector unit 20, possibly suitably processed by amplifying, (low-pass) filtering or digitizing, is then received by a control unit 24, typically realized by means of a microcontroller unit, which on the basis of the detected bitwise detector pattern of the detector unit 20 Recognizes the periodicity of the signals from which detects a respective current feed position of the tube tube 16 and, taking into account suitable feed times or an associated offset, continuously outputs an activation signal A via a connecting line 26 to the cutting unit 12, which then in the known manner the separation of the tube tube in the majority of the individual body 19 makes.
    Typically, the control unit 24 implements a correlation unit which, in the described embodiment, references reference data from a memory unit 28 (in which an upstream reference mode was generated by a reference unit 30) in the manner of a correlation to current data of the detector unit 20 For additional disclosure, reference is made to the German Patent Publication 102010 012858 A1, which should be considered as part of the present application with regard to the correlation functionality, such as regarding the local Fig. 3a, 3b and 4 together with the associated description. In particular, such a correlation thus makes it possible to reliably determine and determine a respective periodicity even in the case of fluctuations or deviations of the respective line patterns to be compared in the transverse direction (i.e., perpendicular to the feed direction 14) and to determine a cutting position (continuously) therefrom.
    The present invention is not limited to the illustrated schematic embodiment; rather, the person skilled in the art can suitably design and / or set up the individual units according to the invention in accordance with a respective requirement. Thus, FIG. 22 shows a (punctiform) detector position 22 outside the center, which can typically be selected as a function of a respective individual pattern 18 and its course. The same applies to the choice of an alternative optical detector, which is widened, for example, in the transverse direction and detects a plurality of (then to be processed in parallel) single pixels.
    As a result, the present invention makes it possible to combine high recognition and cutting accuracy with simplicity and little effort in hardware and processing time, so that it can be expected that the present invention will enable the efficient production of packaging tubes with short clock cycles at high (also graphical) quality significantly improved.
    权利要求:
    Claims (10)
    [1]
    1. tube manufacturing device withMeans for supplying a tube tube (16) having a tube printing, which comprises identical individual patterns (18) provided at regular intervals along a feed direction (14),Means (12) for cutting the tube tube (16) in a cutting direction between adjacent ones of the individual patterns (18)and control means (24) associated with the cutting means, which generate an activation signal (A) for the cutting means in response to an optical scanning of the tube tube (16), characterizedin that the control means have an optical detector unit (20) which, during operation along the cutting direction and / or perpendicular to the feed direction (14), has an effective detector transverse extent of not more than 10%, preferably not more than 2%, of a maximum width of the individual patterns (18), and the control means comprise comparison and / or correlation means, the current detector data of the detector unit (20) corresponding to a strip-shaped section of one of the individual patterns (18) with detector data from a strip-shaped section of an upstream of the individual patterns (18) and / or link with stored reference data of the individual patterns (18) and generate the activation signal from this link.
    [2]
    2. Apparatus according to claim 1, characterized in thatin that the control means are arranged such that a length of the strip-shaped cutout along the feed direction (14) amounts to at least 20% of a maximum length of the individual patterns (18) along the feed direction (14).
    [3]
    3. Apparatus according to claim 1 or 2, characterized in thatin that the strip-shaped cutout extends along the feed direction (14) over the length of the single pattern (18).
    [4]
    4. Device according to one of claims 1 to 3, characterizedthe optical detector unit (20) is a line detector and / or the effective transverse extent is realized by only one image capture element (22).
    [5]
    5. Device according to one of claims 1 to 4, characterizedthat the optical detector unit (20) is associated with a lighting unit for a point or linear detection area on the tube tube (16), which preferably corresponds to the strip-shaped cutout.
    [6]
    6. Device according to one of claims 1 to 5, characterizedin that the control means are assigned reference means (30) which, in response to a preferably manual actuation, enable the definition of a cutting and / or reference point along the feed direction (14) and / or detection of detector data by the detector unit (20) as reference data.
    [7]
    7. A method of operating the tube manufacturing apparatus according to any one of claims 1 to 6 for producing a tube,in which a continuously fed tube tube (16), which has a tube imprinting at regular intervals along the feed direction (14), has identical individual patterns (18), being divided between individual patterns (18) in a cutting direction angled with respect to the feed direction (14),and the cutting is performed by cutting means activated in response to optical scanning of the tube tube (16), characterizedin that the optical scanning takes place in strip-like or line-like fashion along the feed direction (14) such that an extension of a scanned strip pattern along the feed direction (14) amounts to at least 20% of a maximum length of the individual patterns (18) in the feed direction (14). is.
    [8]
    8. The method according to claim 7, characterizedin that the optical scanning takes place by means of only one imaging element transversely to the feed direction (14).
    [9]
    9. The method according to claim 7 or 8,characterized by data correlating the scanned stripe pattern with scan data of a stripe pattern of an upstream single pattern (18) and / or with reference data for activating the cutting means.
    [10]
    10. The method according to any one of claims 7 to 9,characterized by generating and storing reference data from a strip or line reference pattern prior to making the tube.
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    同族专利:
    公开号 | 公开日
    DE102012100956B4|2022-02-03|
    DE102012100956A1|2013-08-08|
    CH706114A2|2013-08-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4384500A|1980-11-20|1983-05-24|Owens-Illinois, Inc.|Registration control for a label cutoff apparatus|
    JPH0684230B2|1986-04-28|1994-10-26|日機電装株式会社|Standard length positioning device|
    DE102010012858B4|2010-03-25|2020-07-09|Packsys Global Ltd.|Device and method for rotational alignment of a tube head relative to a tube body|
    法律状态:
    2021-02-26| PFA| Name/firm changed|Owner name: PACKSYS GLOBAL (SWITZERLAND) LTD., CH Free format text: FORMER OWNER: PACKSYS GLOBAL (SWITZERLAND) LTD., CH |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102012100956.2A|DE102012100956B4|2012-02-06|2012-02-06|tube manufacturing device|
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