• 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 method and a device for metering bulk material, in particular plastic granules, for plastic granulate processing machines, in particular for injection molding machines. Various quantities of different plastic granules are filled into batches according to freely adjustable recipes and each individual type of plastic granulate, such as virgin material, masterbatch, additives and / or ground material, from a material hopper (2) via a material valve in succession in a weighing container drained. Weigh in the weighing container (4) and then mix the recipe in a mixer. The disproportionate for the recipe amount of plastic granules, preferably the virgin and / or regrind is filled with a parallel filling or Mehrfachparallelfüllung, from at least two material funnels (2), in the weighing container (4).
    公开号:AT510710A4
    申请号:T174/2011
    申请日:2011-02-09
    公开日:2012-06-15
    发明作者:Erhard Ing Fux
    申请人:Wittmann Kunststoffgeraete；
    IPC主号:
    专利说明:

    ίΌΟ® [9S98 ÜN R3 / HS1 6i: ZI IN ITOZ Z0 / 60 ίΌΟ® [9S98 ÜN R3 / HS1 6i: ZI IN ITOZ Z0 / 60 • * · · ► · · ♦ ♦ P · * ► · Btt · «» # 4 ../3.2.11
    The invention relates to a method for metering bulk material, in particular plastic granules, for plastic granulate processing machines, in particular for injection molding machines, wherein different amounts of different plastic granules are filled into freely adjustable recipes in batches and every single type of plastic Granulates, such as virgin material, masterbatch, additives and / or regrind, from a material hopper on a Materialventi! one after the other is drained into a weighing container, weighed in the weighing container and the recipe quantity is subsequently mixed in a mixer.
    A sequence of the above-indicated process steps is common in the relevant industry today.
    In addition, DE 696 27 717 T2 discloses a method and a gravimetric mixer for dispensing measured quantities of granular materials and colorants, in particular pigments in liquid form.
    Furthermore, from DE 05 075 472 T1 a gravimetric mixer and hopper with integrated dispensing valve for granular material known.
    Further, from DE 697 32 659 T2 a gravimetric mixer is known, comprising a frame, a removable material supply hopper with a valve, a weighing container with weight detection and a mixing chamber under the weighing container.
    As already indicated, various amounts of different plastic granules are filled according to freely adjustable recipes in batches and every single type of plastic granules, such as virgin, masterbatch, additives and / or regrind is from a material funnel via a valve material in succession drained a weighing container. tOOß)
    asnvHM S00 @ 19999 HN ftia / as] 61 '· ΖΤ ΙΗ ΤΤ02 20/60 * · · »* * *« «* * · · · * * * * *« I · «* · φ» · * · · «· * · ♦ · * · · 4 ** ··» · · «« · β · ··· »» »« · did 3
    In most cases, a recipe is used which contains the individual types of plastic granules, such as virgin material, millbase, masterbatch, and / or additives. Here, virgin material and regrind are in a weighty disproportion to masterbatch and additive. Thus, the proportions of virgin and regrind can be about 70% and 30% and masterbatch or additive amount to 1 to 2% based on the virgin material. For each type of plastic granules a separate container is provided.
    The object of the invention is therefore to provide a method of the type mentioned, which leads in time to rationalizations.
    The object is achieved by the invention.
    The inventive method is characterized in that the disproportionate for the recipe amount of plastic granules, preferably the virgin and / or regrind, with a parallel filling or multiple parallel filling, from at least two material hoppers, is filled into the weighing container. With the invention, it is possible for the first time to increase the throughput for the types of plastic granules which are used disproportionately according to the recipe, as a result of which batch compilation takes place in the shortest possible time.
    Another advantage of the parallel and multiple parallel filling is that bridging of the plastic granules when filling from a material hopper, no interruptions are given more, since at least from the second material funnel is filled.
    According to a particular feature of the invention, the amount is continuously weighed during filling. As a result, an exact dosage of all batches is achieved, avoiding overdoses of expensive types of plastic granules. These exact dosages lead to cost-effective and qualitative optimization of the material throughput for the product requirement. An average statistical calculation to achieve the target weight known in the art as "hunting" is not used. soo® asnvHx 900® E9898 HM H3 / 3S] θΐ: 2Τ IW TIOS 20/60 · * · · · it «« «« «9 9 9 9 9. "·" · · · · · · * * * * F * * * · · · "" ·· "* * Μ M * ·" I | φ · f 4
    According to a particular embodiment of the invention, the parallel filling or the multiple parallel filling just before reaching the target amount, preferably stopped at about 95% of the target amount. This allows a controlled fine dosing to the target amount. This process step also avoids overdosing.
    According to a further, special feature of the invention, after completion of the parallel filling or multiple parallel filling another type of plastic granules, for example the additive and / or the masterbatch, dosed into the weighing container and due to this actually metered amount, the target amount of parallel filling or multiple parallel filling of plastic Granulate quantity determined and filled into the weighing container. This innovative process step also avoids overdosing. After completion of the parallel or multiple parallel filling, for example, the formulation quantity of additive is metered into the weighing container. On the basis of the actually weighed amount of additive, the target amount of the parallel or multiple parallel filling is extrapolated and filled in accordance with fine doses. The batch composition thus always corresponds to the exact recipe and thus ensures a consistently high quality of the end product.
    According to a very special feature of the invention, to achieve the target amount of parallel filling, the filling of the weighing container takes place only from a material hopper via a material valve. This process step represents the fine dosage to achieve the exact target amount.
    However, it is also an object of the invention to provide a device for carrying out the method, which further supports the more rational method by better economy, in particular with the smallest footprint of the device.
    In the device for carrying out the method, a material hopper with a material valve is provided for each type of plastic granules and under the material valve are connected to a scale weighing container and under the weighing container a mixer, wherein for the balance and the material valves 900® asnvas SSCZZfrZSZZCfrOO xvj τζ = ει Π0Ζ 20/60 LOO® [9898 HK Κίί / S] 6Π31 IW TT03 30/60
    g · · I I I I I k I I I I I I I · · · · · · · · · I · I * »f * a III | t 4 "* ·· 5 a control is provided. The device according to the invention is characterized in that at least two material funnels are provided for the disproportionately large amount of plastic granulate according to the recipe, preferably the virgin material and / or the ground material, and each material funnel has a material valve designed as a metering valve, that the scale is a plate form load cell and as mixer a ball mixer are provided. With this invention, it is possible for the first time to greatly increase the material throughput for the disproportionate quantities. Since the material valves are designed accordingly for the fine metering, the throughputs can not be increased arbitrarily. Thus, the filling time for this type of plastic granules is greatly reduced by a parallel or in particular multiple parallel filling of the mentioned material. A shortening of this filling time means in the sequence of temporal process steps, however, also a significant rationalization of the sequence of the Materiaizuführung, ie from the material depot, to the machine, preferably the injection molding machine. Of course, a modular design can advantageously be chosen.
    Another advantage of this device according to the invention can be seen in the metering valve. Such fast-working, wear-resistant valves made of stainless steel also allow efficient dosing of materials with high glass fiber content. Main materials and additives are precisely dosed to the desired degree.
    The advantageous arrangement of a plate-form load cell, which is formed from two independent weighing cells, produces a precise weighing signal, which contributes to the increase in quality.
    The round shape of a highly efficient ball mixer ensures optimal mixing of the batch. The ball mixer has no dead corners and there are no residues when emptying. It guarantees homogeneous mixing of the material.
    One of the customer's priority requirements is always a minimal construction of the device, so a small footprint of the device, with a maximum throughput of the device in operation. The small footprint is therefore required, £ 00®
    asnvHH ssezitzszmoo xvh ττοζ zo / eo 800® [9898 HN K3 / 3S] 6i: 5T IH TT05 £ 0/60 6 where appropriate, the device should be placed on the machine, preferably the injection molding machine, as a slender body. Decisive for the throughput is the transitional area of material hopper and metering valve in the weighing container. Due to the required small footprint, however, this transitional area is also limited. The transition surface integrates all the openings from the various material funnels into the weigh bin. So if the disproportionate plastic granules filled only from a material funnel, the throughput is thus limited. The innovative concept of the invention thus lies in the fact that an increase in the throughput, with minimal construction of the device, is possible for the first time when two or more openings are used for the throughput.
    According to one embodiment of the invention, the metering valve is designed as a self-closing, via a, preferably arranged on the housing, pneumatic cylinder opening material valve. This innovative construction of a pulsating flap valve as a metering valve offers the possibility of equipping all material funnels, ie material funnels for virgin material, regrind and additives, with a highly precise valve type. Of course, there is also the advantage here that uniform components increase the cost-effectiveness and ensure flexibility for the utilization.
    According to a particular feature of the invention, the controller comprises a computer unit, in particular a microprocessor, to which the measured value of the plate-form load cell is fed, and the computer unit in which the formula is stored calculates the quantity of the individual types of plastic granules and controls the metering valves accordingly , Through a proprietary adaptive control algorithm, precise control is achieved with the controller. Of course, with this control, a simple operation is a basic requirement and thus a high performance is achieved. In addition, real-time live-scale technology (RTLS) technology ensures two-stage progressively more accurate metering for an accurate target weight. Needless to say, this controller has networking capability with central computers, laptops, and the like. The control unit itself consists of standard electrical components that guarantee reliable operation and easy maintenance. 800® aS.QVHH SSEimeSZCfOO XVd ΖΖ-ΐ, Ί Π05 50/60 600® Γ9 «9δ MN M3 / 3S] βΐ-ΖΤ ΙΗ U07. 30/60 · »* * · · *» »ι» · · * * * V «» * * * «« · · * * I «Μ *» ·· «·« · * · I · »« II · «·· * · · ·« «« «« 7
    The invention will be explained in more detail with reference to an embodiment shown in the drawing.
    Show it:
    1 shows a section through the device,
    Fig. 2 is a plan view of the device according to FIG. 1 and FIG. 3 is a diagram
    The device for metering bulk material, in particular plastic granules, for plastic granulate processing machines, in particular for injection molding machines, has a modular structure and consists of a housing 1 in which the internals described in more detail below are arranged and removable material funnels 2. For Each type of plastic granules is a material funnel 2 with a metering valve 3 is provided. The material hopper 2 are on the one hand closable via removable material hopper covers and on the other hand, in the covered state, a mounting flange for the supply of the plastic granules. For easier handling, each hopper 2 may have two handles. For easier cleaning and also for visual inspection, each material funnel 2 can have a removable viewing window. Furthermore, the material hopper 2 may consist of wear-resistant stainless steel and have snap closures for rapid removal of the material hopper 2 from the housing 1.
    Below the metering valve 3 is connected to a scale weighing container 4 and below the weighing container 4, a mixer is arranged. As scale, a plate-form load cell 5 and a mixer ball 6 is provided as a mixer. About a - not shown - control plate form load cell 5 is connected to the metering valve 3.
    The metering valve 3 is designed as a self-closing metering valve 3, wherein the opening of the metering valve 3 via a, preferably arranged on the housing 1, pneumatic cylinder takes place. 600® asnvHH sseiitsesmoo xvj ez: ci TTOZ 30/60 OT0 @ [9898 ΗΝ K3 / HSJ 6ΐ; 2ΐ ΙΗ ΤΙΟΖ ΖΟ / 60 8
    The plate-form load cell 5 consists of two independent weighing cells, which provide a very precise weighing measurement. The weighing container 4 sits on guides of the load cells and has a large material outlet angle for complete emptying.
    The highly efficient ball mixer 6 has a round shape, without dead corners, for optimum mixing, and is driven by an electric motor 7.
    In the above-mentioned metering device different amounts of different plastic granules are filled according to freely adjustable recipes in batches. Each individual type of plastic granules, such as virgin material, masterbatch, additives and / or regrind, is discharged from a material hopper 2 via the metering valve 3 successively in the weighing container 4, weighed in the weighing container 4 and the recipe quantity then mixed in the ball mixer 6. For the disproportionately large amounts of plastic granules according to the recipe, preferably for the virgin material and / or the material to be ground, at least two material funnels 2 are provided.
    2, which shows a plan view of the metering device according to FIG. 1, a plurality of material funnels 2 are provided on the housing 1. As already mentioned, at least two material funnels 2 are provided for the disproportionate amounts of the formulation of plastic granulate, preferably for the virgin material and / or the ground material. As a result, these disproportionate amounts of plastic granules, preferably the virgin material and / or regrind, are filled into the weighing container 4 with a parallel filling or multiple parallel filling, from at least two material funnels 2. The throughput for these types of plastic granules is increased immensely, whereby the batch compilation takes place in a very short time.
    As already mentioned, mostly virgin material and regrind are in a weighty disproportion to masterbatch and additive. Thus, the proportions of virgin and regrind can be about 70% and 30% and masterbatch or additive amount to 1 to 2% based on the virgin material. Due to this fact, high levels of rationalization are ensured by parallel or multiple filling. oio® asnvHH SS £££ fr3SSZetO0 XVd = T10S 30/60 ΧΙΟ® [9898 ΗΝ ΗΠ / as] 6Χ: ΖΧ ΙΚ TT0S 30/60 • * * ··········································································· 9
    As already mentioned, the Plattenfomnwägezelle 5 is connected to the metering valves 3 via a control or regulation. The controller comprises a computer unit, in particular a microprocessor, to which the measured value of the plate load cell 5 is fed. The recipe is stored in the computer unit, with the controller correspondingly controlling the metering valves 3 and filling the quantity of the individual types of plastic granules.
    The method for metering bulk material, in particular plastic granules, for plastic granulate processing machines, in particular for injection molding machines, is carried out in such a way that different amounts of different plastic granules are lled according to freely adjustable recipes in batches. In this case, the disproportionately large quantities of plastic granules, preferably the virgin material and / or regrind, are filled into the weighing container 4 with a parallel filling or multiple parallel filling of at least two material funnels 2. Each individual type of plastic granules, such as virgin material, masterbatch, additives and / or regrind is discharged from the material hopper 2 via the metering valve 3 successively in a weighing container 4, weighed in the weighing container 4 and then mixed the recipe in a Kugeimischer 6. The quantity is continuously weighed during the filling. The parallel filling or the multiple parallel filling is stopped shortly before reaching the target quantity, preferably at about 95% of the target quantity.
    After completion of the parallel filling or multiple parallel filling another type of plastic granules, for example, the additive and / or the masterbatch, dosed into the weighing container 4 and determined on the basis of this actually metered amount, the target amount of parallel filling or multiple parallel filling of plastic granules amount and filled into the weighing container 4. To achieve the target amount of parallel filling, the filling of the weighing container 4 takes place only from a material funnel 2 via the metering valve 3.
    As already indicated, one of the serious advantages of this method is that overdosing is avoided. Referring to FIG. 3, a diagram is shown in which the amount is shown in percent over the individual batches. The uota
    asnvHH QSCZZt'SSSZCt'OO XVd X t OE 30/60 210 ^ [9898 HN Wil / HSJ 61: ST IM 1102 20/60 • · t * · »4 • * * · · · 10
    Curve with the white circles shows the state of the art, which results in "hunting" or statistical, optionally time-based, average calculation and the curve with the black circles, filling with exact dosage according to the method described above.
    In the method in question, a precise dosage is achieved by the control algorithm with the controller. In addition, real-time live-scale (RTLS) technology ensures two-stage, progressively accurate dosing for accurate target weight. asrmni
    权利要求:
    Claims (7)
    [1]
    810® [9888 HN H3 / iISl ei-'ST IK IT05 20/60 · * ♦ ♦ · · «« «·» · *** * * * ··· · «·« * # * 4 «« · · 11. ../3.2.11 Claims: 1. Method for metering bulk material, in particular plastic granules, for plastic granulate processing machines, in particular for Injection molding machines, wherein different amounts of different plastic granules are filled into batches according to freely adjustable recipes and each type of plastic granules, such as virgin material, masterbatch, additives and / or regrind, drained from a material hopper via a fluid valve one after the other in a weighing container is weighed in Wegebehäiter and the recipe quantity is then mixed in a mixer, characterized in that the disproportionale for the recipe amount of plastic granules, preferably the virgin and / or regrind, with a Parallelfüllun g or multiple parallel filling, from at least two material funnels (2), in the weighing container (4) is filled.
    [2]
    2. The method according to claim 1, characterized in that the amount is weighed continuously during filling.
    [3]
    3. The method according to claim 1 or 2, characterized in that the parallel filling or multiple parallel filling just before reaching the target amount, preferably at about 95% of the target amount, is stopped.
    [4]
    4. The method according to one or more of claims 1 to 3, characterized in that after completion of the parallel filling or multiple parallel filling another type of plastic granules, for example, the additive and / or the masterbatch, in the weighing container (4) is metered and on Because of this actually metered amount, the target amount of parallel filling or multiple parallel filling determined on plastic granulate amount and filled into the weighing container (4).
    [5]
    5. The method according to claim 3 or 4, characterized in that to achieve the target amount of parallel filling the filling of the CTO® asnvHH QSCAZt'ZCZZCfrOO XYd iZ'Zl TTOZ 20/60



    Ξ. 01 / Θ1 12 Wregefaehalters (4) only from a material funnel (2) About a Materialventi! he follows.
    [6]
    6. A device for carrying out the method according to one or more of claims 1 to 5, wherein for each type of plastic granules, a material funnel is provided with a material valve and under the material valve connected to a scale weighing container and under the weighing container a mixer are arranged , wherein a control is provided for the balance and the material valves, characterized in that for the disproportionate according to the recipe quantity of plastic granules, preferably the virgin material and / or the ground material, at least two material funnels (2) are provided and each material funnel ( 2) a material valve designed as an ier osier valve (3)! It should be noted that the scale is a plate-shaped weighing cell (5) and a mixer is a ball mixer (6).
    [7]
    7. Device according to claim 6, characterized in that the metering valve {3) as selbstschlleßendes, Uber one, preferably on the housing (1) arranged, pneumatic cylinder opening material valve is formed S. Device according to claim 6 or 7, characterized in that the control a computer unit, in particular a microprocessor, comprising the measured value of the plate form weighing cell (S) is fed and the computer unit in which the recipe is stored, the amount of each type of plastic granules calculated and controls the metering valves (3) accordingly. < T Wittmarin Kunststoffgeräte GmbH

    Mag V Mag. Marius Baumann & MMag. Dr. Peter Pescoller HOg asrivaH SSfiit'ZCZSet'OO XVd ss: si tlos 7.0 / 60
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    引用文献:
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    法律状态:
    2016-10-15| MM01| Lapse because of not paying annual fees|Effective date: 20160209 |
    优先权:
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    EP20120709495| EP2673600B1|2011-02-09|2012-02-07|Method for dosing bulk material|
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