• 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:
    Device (16) for producing a mixture of at least one gas and at least one liquid plastic component, comprising a mixing device (17) which is connected via a first line (18) to an introduction device (19) for the at least one gas and via a second line (16). 20) is connected to a conveying device (21) for the at least one liquid plastic component, the introduction device (19) and the conveying device (21) being designed as piston (22, 23) having piston pumps (25, 24).
    公开号:AT516945A4
    申请号:T434/2015
    申请日:2015-07-03
    公开日:2016-10-15
    发明作者:
    申请人:Sonderhoff Eng Gmbh；
    IPC主号:
    专利说明:

    The present invention relates to an apparatus for producing a mixture of at least one gas and at least one liquid plastic component having the features of the preamble of claim 1.
    Such a device is shown in FIG. 10 of EP 0 776 745 B1. There, the introduction device for the at least one gas in the form of a gas pressure bottle is formed. The conveying device for the at least one liquid plastic component is in the form of a pump. In other figures of this document and piston pumps are disclosed. The at least one gas and the at least one liquid plastic component are mixed in the piston pumps themselves. The supply of the gas is carried out and regulated by a valve. As described in this document, it is difficult to introduce the correct amount of gas in the correct ratio in the liquid plastic component.
    The object of the invention is to provide a device in which the problems described above are avoided.
    This object is achieved by a device having the features of claim 1. Advantageous embodiments of the invention are defined in the dependent claims.
    The use of piston pumps for both the at least one gas and the liquid plastic component allows the accurate metering of gas to liquid plastic component. Assuming that a certain maximum filling volume of the piston pump of the conveying device for the liquid plastic component is present and that a certain maximum filling volume of the piston pump of the introduction device for the at least one gas is present (this may be equal to or different from the filling volume of the conveying device), so For example, the amount of gas supplied to the liquid plastic component may be influenced by the pressure with which the gas is filled into the introduction device. The solution according to the invention is less expensive, structurally simpler and smaller.
    In principle, the piston pumps of the introduction device and the delivery device can be operated independently of each other in the sense that they are controlled separately. In order to achieve a particularly simple and cost-effective embodiment, it is preferably provided that the piston of the introduction device and the piston of the conveying device are mechanically or electrically coupled. There are two variants for this coupling. In a mechanically opposite coupling is provided that the piston of the introduction device and the piston of the conveying device are coupled such that when a discharge of gas from the introduction device liquid plastic component is introduced into the conveyor and at a dispensing of liquid plastic component from the conveyor gas in the introduction device is introduced. In contrast, it is provided in a parallel or mechanically synchronous coupling, that the piston of the introduction device and the piston of the conveying device are coupled such that when a discharge of gas from the introduction device liquid plastic component is discharged from the conveyor and with an introduction of gas into the Insertion device liquid plastic component is introduced into the conveyor.
    Protection is also desired for a device for producing foamed plastic parts, in particular sealing beads, with a device according to the invention for producing a mixture of at least one gas and at least one liquid plastic component.
    Embodiments of the invention will be discussed with reference to the figures. Show it:
    Fig. 1 shows schematically an apparatus for producing foamed
    Plastic parts,
    Fig. 2 shows a first embodiment of a piston pump, in which the
    Pistons are mechanically gegengleich coupled,
    3 shows a variant of the embodiment of FIG. 2,
    Fig. 4 shows an embodiment of the invention, in which the pistons are mechanically synchronously coupled.
    5 shows an embodiment of the invention in which the pistons are electrically coupled,
    6 shows an embodiment of the invention, wherein the one piston pump and the other piston pump are each designed alternately as an introduction device and as a delivery device,
    Fig. 7 in detail the buffer device and
    8 shows an alternative variant of the buffer device.
    Fig. 1 shows in its entirety schematically a device 100 for the production of foamed plastic parts, in particular of sealing beads. This device 100 again has several essential subunits.
    Such a subunit is formed by a device 16 for producing a mixture of at least one gas and at least one liquid plastic component. This device 16 in turn has at least one mixing device 17, a feed device 19 for the at least one gas connected to the mixing device 17 via a first line 18 and a conveying device 21 for the at least one liquid plastic component connected to the mixing device 17 via a second line 20. In addition, this device 16 has a container 53 for the plastic component and a gas source 54, in particular a compressed air generating device on. Instead of the container 53, a feed pump could also be provided.
    In such a device 16 is provided in contrast to the prior art that the introduction device 19 and the conveyor device 21 as piston 22 and 23 having piston pumps 25 and 24 are formed.
    The piston 22 of the introduction device 19 (piston pump 25) and the piston 23 of the delivery device 21 (piston pump 24) are in this example mechanically counter-coupled via a pressure booster 26. This allows the use of a drive operating at relatively low pressure (e.g., pneumatics) because the necessary force increase is achieved through the power transmission. In addition, intake valves 27, 28 and exhaust valves 29, 30 can be seen.
    As shown in more detail in FIG. 2, these intake valves 27, 28 and exhaust valves 29, 30 are actuated by a control device 33 in response to the movement of the coupled pistons 22, 23. Shown is also a sensor 31, which is connected via a signal line 32 to the control device 33 for signal transmission. The sensor 31 serves to determine the position of the pressure booster 26.
    Thus, the position of the piston 22, 23 is determined. The position of the pistons 22, 23 can also be determined directly via the sensor 31 (see the further embodiments). In general, with such a sensor 31 leakage detection can take place, namely when the piston seals between the piston 23 and the cylinder 34 of the introduction device 19, the piston seals between the piston 22 and the cylinder 35 of the conveyor 21 and / or at least one of the valves 27 to 30th worn out. For leak detection, e.g. Inlet valve 28 and exhaust gas outlet valve 30 are closed. By means of the piston 22, a compression of the gas volume located between inlet valve 28 and outlet valve 30 is carried out. If there is a leak, after the compression has taken place, an irregular movement of the pressure booster 26, which is detected by the sensor 31, occurs. It can also be checked whether irregular gas components are present in the liquid plastic component, since these lead to a movement of the piston 23 when the inlet valve 27 and outlet valve 29 are closed, since the liquid plastic component is compressible due to the irregular gas components. If appropriate, this can be compensated by the control device 33.
    FIG. 3 shows a single piston pump, which simultaneously forms the piston pump 24 for the delivery device 21 and the piston pump 25 for the introduction device 19. In this variant, no separate pressure booster is provided, but a piston forms both the piston 23 of the piston pump 24 and the piston 22 of the piston pump 25. Also, this system of FIG. 3 operates mechanically gegengleich. That is, when gas is applied via the introduction device 19 (shown below), liquid plastic component is introduced into the delivery device 21 and vice versa.
    In contrast, Fig. 4 shows a system in which the piston pumps 24 and 25 are mechanically synchronously coupled. Specifically, the piston 22 of the
    Insertion device 19 and the Koiben 23 of the conveyor 21 coupled via a coupling mechanism 63 such that when a discharge of gas from the introduction device 19 liquid plastic component from the conveyor 21 is applied and upon introduction of gas into the introduction device 19 liquid plastic component in the conveyor 21st is introduced.
    Fig. 5 shows an electronic coupling of the piston pumps 24 and 25. The movement of the pistons 22 and 23 is controlled by a control device 64, which communicates with drive devices of the two piston pump 24 and 25 in signal communication. The pistons 22 and 23 can be moved in opposite or synchronous manner. This is adjustable via the control device 64.
    FIG. 6 shows a piston pump 25 and a piston pump 24, which alternately form the introduction device 19 or the delivery device 21. An advantage here is that on both sides of the seals are alternately lubricated by the liquid plastic component. A change is possible after a predefinable number of cycles. The change takes place via switching device 65 and 66, which can either be switched over to dogs or preferably via a control device 67, preferably regularly switched. In the first switching position, the liquid plastic component is conveyed from the container 53 via a first line 68 to the piston pump 24 (shown above), while the gas is conveyed from the gas source 54 via the second line 69 to the piston pump 25. In this respect, the entire system is in this first switching position with Figs. 1 and 2 match. In the second switching position, however, a diversion takes place. In concrete terms, in this second switching position, the liquid plastic component is conveyed from the container 53 via a third line 70 to the piston pump 25 (shown below), while the gas is conveyed from the gas source 54 via a fourth line 71 to the piston pump 24. In this second switching position accordingly forms - the reverse to the first switching position - the piston pump 25, the conveyor 21 and the piston pump 24, the introduction device 19. Depending on the switching position is then on the first line 18 and the second line 20, the liquid plastic component or the gas Blending device 17 further pumped.
    Returning to FIG. 1, another subunit of the device 100 is formed by a device 36 providing a liquid plastic component, preferably mixed with gas, for a metering device 38. This device 36 has a source 37 for at least one liquid plastic component. Preferably, this source 37 is formed by a conduit which leads away from the mixing device 17 already mentioned. Furthermore, this device 36 has an intermittently operating relay device for the at least one liquid plastic component. This intermittent forwarding device is formed by the piston pumps 24, 25, but may also be any other, arbitrarily designed device which is suitable to forward the liquid plastic component intermittently. An intermittently operating source is understood to mean not only one source whose delivery rate drops to zero (eg a piston pump), but also a source whose delivery rate, in particular pulsating, fluctuations downwards / forwards (eg gear pump).
    The device 36 further comprises a metering device 38, preferably a metering pump, for which the plastic component is provided by the relay device. In addition, the device 36 has a buffer device 39 with a variable buffer volume 40 arranged between the source 37 for the at least one liquid plastic component and the metering device 38, through which the liquid plastic component delivered intermittently to the buffer device 39 always in sufficient quantity with sufficient biasing pressure for the metering device 38 is provided. After the metering device 38, the plastic component passes to a metering valve 60, after which the plastic component directly (see dashed line shown nozzle 61) -or indirectly as shown in Fig. 1 via another mixing element 58 - discharged through a nozzle 61 and by the application and the so accompanying pressure drop foams.
    In order to enable as constant a forwarding as possible, it is preferably provided that the pressure prevailing between the buffer device 39 and the metering device 38 in the liquid plastic component can be controlled by the buffer device 39. Via an inlet opening 41, the liquid plastic component passes from the source 37 into the buffer volume 40 of the buffer device 39
    Outlet opening 42, the buffer volume 40 is in turn connected to the Dosien / device 38. In FIG. 1, the inlet opening 41 is formed in a wall of a housing 43 of the buffer device 39. This is also apparent in Fig. 7. Alternatively, however, it may also be provided that the inlet opening 41 is formed in a piston rod 44 of the buffer device 39 connected to a piston 45 (see FIG. 8). Furthermore, an inlet valve 51 is arranged upstream of the inlet opening and an outlet valve 52 downstream of the outlet opening 42. In addition, a displacement sensor 72 may be provided, with which at least selected positions of the piston 45 in the housing 43 can be determined.
    Furthermore, it is provided that a pressure sensor 46 is arranged on an output side of the metering device 38. This pressure sensor 46 is connected to a control device 47 via a control line 48 in connection. The control device 47 controls the buffer device 39 such that the pressure applied to the input side of the metering device 38 is tracked to the pressure prevailing on the output side of the metering device 38. Furthermore, the control device 47 may be designed to close both the inlet valve 51 and the outlet valve 52 and to compress the liquid plastic component located in the buffer volume 40. In addition, a sensor, not shown, can be provided, through which an irregular compression of the buffer volume 40 can be detected.
    Furthermore, the buffer device 39 is connected to a device 49 for pressurizing the puff device 39. This can be controlled either by the control device 47 (dashed line) or by a separate control device 50.
    In principle, the two devices 16 and 36 would already suffice for the production of foamed plastic parts in the form of sealing beads. However, it can additionally be provided that a second plastic component parallel to the first plastic component or mixed with the first plastic component to the plastic part, preferably physically, foams. Therefore, a further subunit of the device 100 is formed by a device 62 for multi-component foaming (see again Fig. 1). This device 54 has a container 55 for a second plastic component, from which the, preferably mixed with gas, second plastic component via a metering device 56 and a metering valve 57 to the mixing element 58 is performed. In this mixing element 58, this second plastic component is mixed with the first plastic component. Subsequently, this mixture is discharged after a further metering valve 59 via a schematically indicated nozzle 61, whereby the gas contained in the mixture foams. In other words, it comes through the application to a pressure drop, the gas brings the liquid plastic component for foaming and it is formed after curing of the foamed plastic component provided with a pores plastic part, for example in the form of a sealing bead 73rd
    In the metering valves 57 and / or 60 as blocking valves can be provided, as provided in FIG. 1 with the reference numerals 51 and 52 are used as inlet and outlet valve.
    LIST OF REFERENCES: 16 device 17 mixing device 18 first line 19 introduction device 20 second line 21 conveying device 22 piston 23 piston 24 piston pump 25 piston pump 26 pressure booster 27 inlet valve 28 inlet valve 29 outlet valve 30 outlet valve 31 sensor 32 signal line 33 control device 34 cylinder 35 cylinder 36 Device for forwarding a liquid Plastic component 37 Source 38 Metering device 39 Buffer device 40 Buffer volume 41 Inlet port 42 Outlet port 43 Housing 44 Piston rod 45 Piston 46 Pressure sensor 47 Control device 48 Control line 49 Pressurization device 50 Control device 51 Inlet valve 52 Outlet valve 53 Container for plastic component 54 Gas source 55 Container for second plastic component 56 Mixing device 57 Dosing valve 58 mixing element 59 metering valve 60 metering valve 61 nozzle 62 device for multi-component foaming 63 coupling mechanism 64 control device 65 Schaltvorrich Device 66 Switching device 67 Control device 68 First line 69 Second line 70 Third line 71 Fourth line 72 Distance sensor 73 Sealing bead 100 Device for producing foamed plastic parts
    权利要求:
    Claims (6)
    [1]
    claims
    A device (16) for producing a mixture of at least one gas and at least one liquid plastic component, comprising a mixing device (17) having a first line (18) with a feed device (19) for the at least one gas and a second Line (20) with a conveying device (21) for the at least one liquid plastic component is connected, characterized in that the introduction device (19) and the conveying device (21) as piston (22, 23) having piston pumps (25, 24) are formed ,
    [2]
    2. Device (16) according to claim 1, wherein the piston (22) of the introduction device (19) and the piston (23) of the conveying device (21) are mechanically or electrically coupled.
    [3]
    3. Device (16) according to claim 2, wherein the piston (22) of the introduction device (19) and the piston (23) of the conveying device (21) are coupled such that when a discharge of gas from the introduction device (19) liquid plastic component is introduced into the conveying device (21) and in a dispensing of liquid plastic component from the conveying device (21) gas is introduced into the introduction device (19).
    [4]
    4. Device (16) according to claim 2, wherein the piston (22) of the introduction device (19) and the piston (23) of the conveying device (21) are coupled such that when a discharge of gas from the introduction device (19) liquid plastic component is discharged from the conveyor device (21) and when introducing gas into the introduction device (19) liquid plastic component is introduced into the conveying device (21).
    [5]
    5. Apparatus according to claim 2, wherein both piston pumps (24, 25) each alternately the introduction device (19) or the conveying device (21) form.
    [6]
    6. Device (100) for the production of foamed plastic parts, in particular sealing beads, with a device (16) according to one of claims 1 to 4.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE602004008632T2|2008-06-05|PROCEDURE FOR CONVEYING POWDER MATERIAL THROUGH PIPING
    DE2612609A1|1976-10-07|PUMP SYSTEM
    DE2748982C2|1987-10-01|Arrangement for filling molds with resin or the like. pourable liquid media
    DE10145448A1|2003-05-22|Device for conveying powder and method for operating it
    DE3441054A1|1985-05-15|DOUBLE UNIT PUMP WITH CONSTANT FLOW RATE
    DE2808183A1|1979-09-06|DEVICES FOR CAST RESIN PLANTS TO CONTROL THE SAME AND / OR DIFFERENT, ALSO SYNCHRONIZED EMISSION QUANTITIES OF FLOWABLE TO HIGHLY VISCOSE MEDIA
    DE10329314A1|2004-05-13|Pump for introducing a liquid into a chromatograph comprises chambers, plungers forming a first and a second volume with the chambers, a liquid connecting channel, a liquid inlet channel, and a liquid outlet channel
    DE2123375A1|1971-11-25|Measuring device for determining the gas content of liquids
    DE3305890A1|1984-08-23|METHOD AND DEVICE FOR DOSING AND MIXING MULTI-COMPONENT MEDIA
    AT516945B1|2016-10-15|Device for producing a mixture of at least one gas and at least one liquid plastic component
    EP2202496B1|2015-08-05|Piston-type dosing device with supervised valve
    EP3317063B1|2020-06-03|Device with intermittend delivery of a liquid polymeric component mixed with a gas
    DE2305376C2|1975-01-09|Device to prevent unwanted addition of resistance-reducing additives to water during unsteady flow processes
    DE102011114554A1|2013-04-04|Method and apparatus for metering an incompressible working fluid
    DE10356955B3|2005-06-09|System, to give liquid medium flow, especially for liquid chromatography, has controlled valve to switch flow from pump into auxiliary impeller units each with buffer volume
    EP0478944B1|1994-05-18|Device for proportioning and mixing two fluid components
    EP3409300A1|2018-12-05|Decontamination arrangement, system and decontamination method
    DE3504107A1|1986-08-07|Hydraulic dosing and delivery system
    DE102018124656A1|2020-04-09|LIQUID OUTPUT DEVICE FOR A VEHICLE WASHING SYSTEM AND METHOD FOR THEIR OPERATION
    DE102018124657A1|2020-04-09|LIQUID OUTPUT DEVICE FOR A VEHICLE WASHING SYSTEM AND METHOD FOR THEIR OPERATION
    DE19912931A1|2000-09-28|Mixing, dosing and spray application of viscous two-component plastic resin employs positive displacement pumps injecting hardener just ahead of static mixer, whilst avoiding pulsations and inhomogeneities
    DE4344922C2|1999-07-29|Device for filling one or more casting molds with pourable liquid media
    DE10020089A1|2001-10-31|Dosed introduction of liquid volume flows into system or component involves pumping circular flow from tank to branch region and back; smaller flow passes to system or component
    DE3624976A1|1988-02-04|Device for metering and transporting liquid and pasty media
    DE1806897A1|1969-06-19|Dosing device
    同族专利:
    公开号 | 公开日
    SG11201800059YA|2018-02-27|
    RU2689589C1|2019-05-28|
    US10661478B2|2020-05-26|
    JP6576478B2|2019-09-18|
    KR102018468B1|2019-09-04|
    EP3317538A1|2018-05-09|
    CN107980081A|2018-05-01|
    CN107980081B|2020-06-26|
    WO2017004634A1|2017-01-12|
    AU2016291288B2|2019-06-27|
    US20180370075A1|2018-12-27|
    JP2018525241A|2018-09-06|
    KR20180026488A|2018-03-12|
    AU2016291288A1|2018-01-25|
    AT516945B1|2016-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1503648A|1975-04-23|1978-03-15|Jennings G|Pumping apparatus|
    CA1094995A|1978-05-01|1981-02-03|Wallace F. Krueger|Apparatus for transferring metered quantities of material from one location to another|
    US4171191A|1976-03-25|1979-10-16|Krueger Wallace F|Apparatus for transferring metered quantities of material from one location to another|
    CA1081539A|1976-03-25|1980-07-15|Wallace F. Krueger|Apparatus for transferring metered quantities of material from one location to another|
    GB1532045A|1976-09-28|1978-11-15|Liquid Controls Ltd|Pump drive system|
    JPH0144134B2|1984-03-27|1989-09-26|Niigata Tetsukosho Kk|
    FR2595121B1|1986-03-03|1988-07-01|Beraud Jean Louis|DOSING PUMP FOR DELIVERING TWO COMPONENTS IN A SPECIFIED PROPORTION|
    EP0412978B1|1988-04-20|1992-11-11|Lenhardt Maschinenbau GmbH|Device for dispensing high-viscosity pasty compressible substances|
    JP3177037B2|1992-12-28|2001-06-18|タイヨーテクノ株式会社|Method of mixing gas into fluid material|
    ES2124804T3|1993-03-14|1999-02-16|Hedrich Vakuumanlagen Wilhelm|PROCEDURE AND DEVICE FOR FILLING CAST MOLDS WITH CAST RESIN OR SIMILAR COLLABLE FLUIDS.|
    EP0630729B1|1993-06-18|2000-09-27|WILHELM HEDRICH VAKUUMANLAGEN GmbH & Co. KG|Device for mixing liquid products|
    ES2157423T3|1995-02-20|2001-08-16|Hedrich Vakuumanlagen Wilhelm|INSTALLATION FOR SUPPLY OF MATERIALS WITH FLUIDITY PROPERTIES, COMPOUNDS OF AT LEAST TWO COMPONENTS THAT REACT BETWEEN, IN SPECIAL MOLDING RESIN.|
    US6538040B1|1995-12-01|2003-03-25|Sunstar Giken Kabushiki Kaisha|Method and apparatus for mixing a high-viscosity material into a gas|
    EP0776745B1|1995-12-01|2001-02-21|Sunstar Engineering Inc.|Method of an apparatus for foaming a viscous material|
    JP3851895B2|1995-12-01|2006-11-29|サンスター技研株式会社|Method and apparatus for foaming high viscosity material|
    US7338980B2|1995-12-01|2008-03-04|Sunstar Giken Kabushiki Kaisha|Method and apparatus for mixing a high-viscosity material into a gas|
    JP3482309B2|1995-12-01|2003-12-22|サンスター技研株式会社|Method and apparatus for foaming high viscosity material|
    RU2164304C2|1999-02-23|2001-03-20|Палецких Владимир Михайлович|Multifunctional modular power plant|
    RU2258156C1|2004-03-24|2005-08-10|Государственное образовательное учреждение высшего профессионального образования "Московский энергетический институт ")|Hydraulically-operated reciprocating double-acting pump|
    JP4731940B2|2005-02-14|2011-07-27|サンスター技研株式会社|Foaming method and apparatus|
    EP2067992A1|2007-12-06|2009-06-10|Groupe E SA|Compressor and apparatus for compressing two gases at high pressure|
    RU83809U1|2009-01-23|2009-06-20|Клоян Омари Отариевич|MULTI-STAGE PUMPING DEVICE|
    WO2014195312A1|2013-06-05|2014-12-11|Basf Se|Metering pump and metering system|CN106979124A|2017-05-04|2017-07-25|芜湖市海联机械设备有限公司|A kind of free-piston gas machine|
    CN110997125B|2017-08-01|2021-09-24|本田技研工业株式会社|Liquid mixing device and liquid mixing method|
    法律状态:
    2021-06-15| PC| Change of the owner|Owner name: HENKEL AG & CO. KGAA, DE Effective date: 20210511 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA434/2015A|AT516945B1|2015-07-03|2015-07-03|Device for producing a mixture of at least one gas and at least one liquid plastic component|ATA434/2015A| AT516945B1|2015-07-03|2015-07-03|Device for producing a mixture of at least one gas and at least one liquid plastic component|
    RU2018103358A| RU2689589C1|2015-07-03|2016-06-24|Device for making a mixture of at least one gas and at least one liquid plastic component|
    JP2017566005A| JP6576478B2|2015-07-03|2016-06-24|Apparatus for producing a mixture comprising at least one gas and at least one liquid plastic component|
    PCT/AT2016/050225| WO2017004634A1|2015-07-03|2016-06-24|Apparatus for the production of a mixture of at least one gas and at least one liquid plastic component|
    EP16740937.4A| EP3317538A1|2015-07-03|2016-06-24|Apparatus for the production of a mixture of at least one gas and at least one liquid plastic component|
    SG11201800059YA| SG11201800059YA|2015-07-03|2016-06-24|Apparatus for the production of a mixture of at least one gas and at least one liquid plastic component|
    AU2016291288A| AU2016291288B2|2015-07-03|2016-06-24|Apparatus for the production of a mixture of at least one gas and at least one liquid plastic component|
    KR1020187003036A| KR102018468B1|2015-07-03|2016-06-24|Apparatus for producing a mixture of at least one gas and at least one liquid plastic component|
    CN201680038082.6A| CN107980081B|2015-07-03|2016-06-24|Device for producing a mixture of at least one gas and at least one liquid plastic component|
    US15/741,396| US10661478B2|2015-07-03|2016-06-24|Apparatus for the production of a mixture of at least one gas and at least one liquid plastic component|
    [返回顶部]