WO2018069238A1 - Dispositif et procédé permettant de contrôler des matières plastiques fondues - Google Patents

Dispositif et procédé permettant de contrôler des matières plastiques fondues Download PDF

Info

Publication number
WO2018069238A1
WO2018069238A1 PCT/EP2017/075659 EP2017075659W WO2018069238A1 WO 2018069238 A1 WO2018069238 A1 WO 2018069238A1 EP 2017075659 W EP2017075659 W EP 2017075659W WO 2018069238 A1 WO2018069238 A1 WO 2018069238A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
extruder
pressure
rinsing
electronic control
Prior art date
Application number
PCT/EP2017/075659
Other languages
German (de)
English (en)
Inventor
Friedrich Kastner
Original Assignee
Dr. Collin Gmbh
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 Dr. Collin Gmbh filed Critical Dr. Collin Gmbh
Priority to EP17780758.3A priority Critical patent/EP3341180A1/fr
Publication of WO2018069238A1 publication Critical patent/WO2018069238A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
    • G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
    • G01N11/08—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/02—Small extruding apparatus, e.g. handheld, toy or laboratory extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B29C48/6912—Arrangements for replacing filters, e.g. with two parallel filters for alternate use the filters being fitted on a single rectilinearly reciprocating slide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B29C48/6914—Arrangements for replacing filters, e.g. with two parallel filters for alternate use the filters being fitted on a rotatable or pivotable disc or on the circumference of a rotatable or pivotable cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/692—Filters or screens for the moulding material in the form of webs displaceable for using adjacent areas consecutively
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/44—Resins; Plastics; Rubber; Leather
    • G01N33/442—Resins; Plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92019—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92466—Auxiliary unit, e.g. for external melt filtering, re-combining or transfer between units

Definitions

  • the invention relates to a device for testing plastic melts and a method for operating a device for testing plastic melts.
  • WO 2016/037206 A2 discloses a device for testing plastic melts comprising an extruder with a material inlet and a material outlet, a storage device and a pressure filter testing device.
  • the storage device comprises a plurality of storage containers, which are provided to hold plastic materials to be introduced into the extruder via the material inlet.
  • the extruder is set up to produce a plastic melt from the plastic material and to dispense it at the material outlet, so that the pressure filter test device can perform a pressure filter test.
  • DE 10 2011 109 871 A1 discloses an apparatus and a method for testing the purity of the rheological properties of plastic melts comprising an extruder and a pressure filter testing device.
  • the pressure filter test device comprises a rail on which individual filter screens are mounted one behind the other to allow a quick change of the filter screens.
  • the object of the present invention is to provide an improved operation of a device for testing plastic melts with an extruder, a storage device and a pressure filter test device.
  • an extruder having a material inlet and a material outlet and arranged, a plastic melt from a filled in its material inlet
  • a storage device connected to the material inlet, the plurality, provided for receiving plastic materials reservoir, a for receiving a further rinsing material provided reservoir and a removal device, which is adapted to at least partially empty the reservoir and the further storage device, so that the stored in the reservoirs plastic materials and stored in the other reservoir rinsing material via the material inlet at least partially in the extruder to reach,
  • a pressure filter test device connected to the material outlet and having a filter chamber and a pressure sensor coupled to the filter chamber, the filter chamber being for receiving a filter screen or a piece of filter screen belt so that during a pressure fiddle test the plastic melt passes through the filter screen located in the filter chamber or the piece of filter screen belt located in the filter chamber is conveyed, and the pressure filter testing device is adapted to automatically replace a filter screen located in the filter chamber with another filter screen or the piece of filter screen belt located in the filter chamber through another piece of the filter screen belt, and
  • An electronic control device coupled to the extruder, the storage device, and the pressure filter test device is arranged to trigger the sampling device in such a way that it alternately empties one of the reservoir and the further reservoir at least partially, alternately storing the plastic materials stored in the reservoirs for a pressure filter test and pass the rinsing material for a rinsing process of the extruder and Druckfiltertest- device in the extruder between two pressure filter tests, and to control the pressure filter test device after the end of a rinsing process so that it automatically located in the filter chamber filter through another filter or in the filter chamber located piece of the filter screen belt replaced by another piece of the filter screen belt.
  • the device for testing plastic melts accordingly comprises the extruder, the storage device, the pressure filter testing device and the electronic control device, which are essentially adapted to control the operation of the device for testing plastic melts. To do this, e.g. on the electronic control device a corresponding computer program.
  • the extruder includes the material inlet. This is in particular funnel-shaped in order to facilitate the filling of the extruder with the plastic material and the rinsing material. you. Extruders as such are known to those skilled in principle and are adapted to produce a plastic melt from the plastic material.
  • the plastic melt is conveyed through the material outlet and enters the pressure filter test device.
  • the pressure filter test device is provided to perform a pressure filter test, which as such is familiar to those skilled in the art. As part of this pressure filter test, the plastic melt is conveyed through the filter in the filter chamber.
  • a piece of a filter screen belt is used instead of the filter screen. The stored in the reservoirs plastic materials are therefore provided for the pressure fume test.
  • the signals of the pressure sensor which is coupled to the filter chamber, evaluated. This can also be done by the electronic control device.
  • the further reservoir is provided for holding the rinsing material.
  • the rinsing material is in particular also a plastic material which is provided for rinsing the extruder and the pressure filter test device. The extruder produces a rinsing melt from the rinsing material.
  • the storage device comprises the removal device that can be activated by the electronic control device.
  • the removal device is provided, controlled by the electronic control device, to remove at least partially plastic material from the storage containers or at least partially rinsing material from the further storage container, so that they pass through the material inlet into the extruder.
  • the electronic control device controls the removal device so that it alternately at least partially emptied one of the reservoir and the other reservoir, so that alternately stored in the reservoirs Kunststoffstof materials for a pressure filter test and the rinsing material for a flushing of the extruder and the pressure filter test device in the Enter extruder.
  • the electronic control device controls the extraction device such that between two pressure filter tests for which the electronic control device, the removal device so controls that this at least partially empties the relevant reservoir, the other storage device is at least partially emptied, so that the flushing material passes to flush the extruder and the pressure filter test in the extruder.
  • the extruder is automatically purged with the flushing material between two pressure filter tests.
  • the electronic control device is also set up to control the pressure filter test device after the end of a rinsing process so that it automatically replaces the filter screen located in the filter chamber with another filter screen or the piece of filter filter belt in the filter chamber through another piece of the filter screen belt.
  • the electronic control device automatically controls the operation of the device according to the invention such that not only are the extruder and the pressure filter test device automatically automatically purged between two successive pressure filter tests, but also automatically the filter screen or piece of filter belt strip is automatically changed between two successive pressure filter tests.
  • an automatic series of pressure filter tests is enabled, which is carried out automatically in succession by the device according to the invention.
  • the electronic control device controls the entire operation of the device according to the invention.
  • the electronic control device thereof is therefore set up to carry out the following steps for a plurality of pressure filter tests to be carried out one after another
  • Another aspect of the invention relates to a method for operating the device according to the invention for testing plastic melts, comprising the following method steps:
  • the storage device may have a holding device arranged above the material inlet, to which the further storage container and the storage containers are fastened such that the storage container and the further storage container are arranged above the material inlet. This makes it possible, in particular, for the plastic materials or the rinsing material to automatically enter the extruder via the material inlet when the storage container or the additional storage container is opened by the removal device.
  • the reservoirs are non-destructively releasably attached to the holding device.
  • empty storage containers can be relatively easily replaced by new, filled with a plastic material reservoir.
  • the other reservoir can be attached to the fixture nondestructive and detachable.
  • the storage container and the further storage container can each have a Verschplimecha- mechanism.
  • the storage container and the further storage container are then arranged above the material inlet on the holding device in such a way that, when the closing mechanisms are open, the storage containers and the further storage container are emptied into the extruder via the material inlet.
  • the extraction device is formed as an opening mechanism
  • the electronic control device is configured to control the opening mechanism so as to alternately open a shutter mechanism of one of the reservoir and the shutter mechanism of the another reservoir.
  • the closure mechanisms are preferably arranged in the region of the bottoms of the storage container or of the additional storage container.
  • the electronic control device controls the opening mechanism such that the reservoirs completely empty their plastic materials through the material inlet into the extruder.
  • the electronic control device is preferably arranged such that it controls the opening mechanism such that the closure mechanism of the other reservoir is open only for a predetermined period of time, so that the further reservoir is only partially emptied and a predetermined amount of flushing material passes through the material inlet into the extruder. This prevents, for example, that the additional reservoir does not need to be refilled more often than necessary with a flushing material.
  • the extruder may comprise a level sensor connected to the electronic control device and arranged in the region of the material inlet, which is set up to determine the fill level of the extruder in the region of its material inlet. The electronic control device can then be set up to actuate the removal device on the basis of the fill level detected by the fill level sensor.
  • the storage containers are each provided with an individual marking.
  • the markings are e.g. Individual codes attached to the surfaces of the storage containers, such as bar codes or QR codes.
  • the markings can also be RFID transponders.
  • the storage device comprises in this case a connected to the electronic control device, provided for recognizing the markers detection device.
  • the recognition device is e.g. when using the bar codes or the QR codes, a sensor, in particular an optical sensor.
  • the electronic control device is arranged in this case to control the detection device to determine the positions of the individual storage containers relative to the holding device. Thereby, the electronic control device obtains information about the individual positions of the storage containers on the holding device, whereby it informs the electronic control device e.g. it is possible to comply with a predetermined order of the reservoir for the series of pressure filter tests.
  • the filter screen or the piece of the filter belt band should be promoted as possible no rinse melt or plastic melt through the filter chamber. This can e.g. can be achieved by the electronic control device during this change the extruder so drives that it promotes no plastic melt or rinsing melt through the pressure filter test device or even reverses the conveying direction.
  • the pressure filter testing device includes a three-way diverter having an inlet connected to the material outlet, an outlet connected to the filter chamber, and a second outlet.
  • the electronic control device is configured to operate the three-way switch during the pressure filter test and purging operation in a first mode of operation in which the inlet of the three-way switch is connected to the first outlet thereof to remove the plastic melt during the pressure filter test and during the purging operation, to convey a rinse melt made from the rinse material through the filter chamber, and to operate for changing the filter screen or piece of the filter belt in a second mode of operation in which the inlet of the three-way diverter is connected to the second outlet thereof pass the rinsing melt past the filter chamber.
  • the three-way switch for changing the filter screen or the piece of filter screen belt, operating the three-way switch in a second mode of operation in which the inlet of the three-way switch is connected to the second outlet thereof to bypass the plastic melt and the wash melt past the filter chamber.
  • the three-way switch is preferably part of the pressure filter test device.
  • the pressure filter testing device may comprise a pump that is in particular controlled by the electronic control device.
  • the pump is arranged between the material outlet and the filter chamber and optionally in front of the three-way switch.
  • the filter chamber can be heated.
  • the pressure filter test device is preferably designed in such a way that it preheats the next filter screen or the next part of the filter filter belt provided for a pressure filter test.
  • FIG. 1 shows a device for testing plastic melts with an extruder, a storage device and a pressure filter test device in a perspective view,
  • FIG. 5 is a side view of a portion of the pressure filter test device in a sectional view
  • Fig. 6 is a plan view of a portion of a filter screen belt
  • Fig. 7 shows the filter screen belt rolled up on a roll
  • Fig. 8 is a flow chart.
  • FIG. 1 shows a perspective view of a device 1 for testing plastic melts, which has an extruder 20, a storage device 30, a pressure filter test device 40 and an electronic control device 10.
  • the electronic control device 10 is configured to control the operation of the device 1 for testing plastic melts.
  • a suitable computer program preferably runs on the electronic control device 10.
  • the device 1 for testing plastic melts comprises, in the case of the present exemplary embodiment, an input and output device 11.
  • the device 1 for testing plastic melts comprises the extruder 20.
  • a side view of the extruder 20 in a sectional representation is shown in FIG. 2.
  • the extruder 20 is provided to produce a plastic melt from a plastic material.
  • the extruder 20, which is preferably designed as a single-screw extruder comprises in the case of the present embodiment, a material inlet 21 for the plastic material, a preferably driven by the electronic control device 10 drive 23, in particular horizontally aligned, hollow cylindrical housing 24, one within the housing 24th rotatably mounted, driven by the drive 23 worm shaft 25 and a material outlet 22 through which the plastic melt is conveyed.
  • the housing 24 comprises the material inlet 21 and the material outlet 22.
  • the material inlet 21 is preferably funnel-shaped.
  • the drive 23 is preferably an electric drive and may be a variable speed electric drive.
  • the extruder 20 further comprises a heater, not shown, but known in the art and preferably controlled by the electronic control device 10 so that in operation of the extruder 20 in the material inlet 21 into the interior of the extruder 20 reached plastic material by means of the screw shaft 25 to the material outlet 22nd is promoted and heated, whereby from the plastic material, the plastic melt is formed.
  • the device 1 for testing plastic melts comprises the storage device 30, which is connected to the electronic control device 10.
  • the electronic control device 10 is configured to control the operation of the stocking device 30.
  • the storage device 30 is disposed above the material inlet 21 and, in the case of the present embodiment, comprises a holding device 31, e.g. attached to the extruder 20 and to the housing 24.
  • the storage device 30 comprises a plurality of storage containers 32, in each of which a plastic material is stored.
  • the plastic materials of the individual reservoir 32 may differ.
  • the plastic materials stored in the storage containers 30 are fed to the extruder 20 via the material inlet 21.
  • the plastic material stored in the storage containers 32 or the resulting plastic melt is to be tested by means of the device 1 for testing plastic melts, in particular with their pressure filter testing device 40, as part of a pressure filter test.
  • the storage containers 32 are attached to the holding device 31 so as to be non-destructively detachable, in order to preferably allow replacement of empty storage containers 32 with new storage containers 32 filled with a plastic material.
  • 1 shows the storage device 30 with its maximum possible occupancy of storage containers 32 and in FIG. 3, the storage device 30 is shown only partially occupied with storage containers 32.
  • the storage device 30 comprises in the case of the present embodiment, a further reservoir 33, which is provided for holding a rinsing material.
  • the further storage container 33 is preferably fastened to the holding device 31 in a non-destructive manner.
  • the rinse material is also a plastic material and is intended to rinse the extruder 20 and the pressure filter test device 40 after a pressure filter test. For this purge, the extruder produces a purge melt which is conveyed through the pressure filter test device 40.
  • the reservoir 32 and the further reservoir 33 which are arranged by means of the holding device 31 above the funnel-shaped material inlet 21, each comprise in their lower regions a closable by means of a shutter mechanism 34 opening.
  • the storage device 30 comprises an opening mechanism 35 connected to the electronic control device 10.
  • the opening mechanism 35 comprises in particular a drive and is set up, controlled by the electronic control device 10, the closure mechanisms 34 of the storage container 32 or of the further storage container 33 individually in such a way that the closure mechanism 34 of the associated storage container 33 or of the further storage container 33 opens, so that the corresponding content, ie the plastic material stored in the corresponding storage container 32 or the storage container 33 stored in the further storage container 33 Rinsing material is at least partially emptied and able to enter via the material inlet 21 in the extruder 20.
  • the electronic control device 10 is thus in particular adapted to control the storage device 30, in particular the opening mechanism 35, so that optionally the contents of a specific one of the storage container 32 or the further storage container 33 are at least partially emptied into the extruder 20.
  • the corresponding reservoir 32 completely empty.
  • the further reservoir 33 should preferably, if activated, only partially empty. This can be achieved by the electronic control device 10 activating the opening mechanism 35 such that it opens the closing mechanism 34 of the further storage container 33 for a predetermined period of time and subsequently closes it again.
  • the storage device 30 can also be designed such that, controlled by the electronic control device 10, only a predetermined part of the plastic material of a selected storage container 32 is removed.
  • the reservoir 32 are each provided with an individual mark 36.
  • the marker 36 is e.g. a barcode and is e.g. applied to the surface of the respective storage tank 32.
  • the marking can also be an RFID transponder.
  • the storage device 30 comprises a sensor 37, which is connected to the electronic control device 10 and is arranged to detect the markings 36.
  • the sensor 37 and thus the electronic control device 10 to detect the position of a particular storage container 32 on the holding device 31 in order subsequently to actuate the opening mechanism 35 to actuate the closure mechanism 34 of the corresponding storage container 32 so that its contents at least partially emptied into the extruder 20 via the material inlet 21.
  • the electronic control device 10 may eg be set up or programmed such that it activates the storage device 30 or its opening mechanism 35 in such a way that alternately a storage container 32 and the further storage container 34 at least partially transfer their plastic materials or the rinsing material into the reservoir Empty extruder 20.
  • the electronic control device 10 may have information about the sequence of the storage containers 32 to be opened on the basis of which markings 36.
  • the device 1 for testing plastic melts may comprise a filling level sensor, not shown, which is adapted to detect the level of plastic material in the region of the material inlet 21 and to transmit information about the current level in the region of the material inlet 21 of the electronic control device 10.
  • the device 1 for testing plastic melts comprises the pressure filter test device 40. This is likewise connected to the electronic control device 10, so that the electronic control device 10 is also able to control the operation of the pressure filter test device 40.
  • a side view of the pressure filter test device 40 is shown in FIG. 4 and FIG. 5 is a side view of a portion of the pressure filter test device 40 in a sectional view.
  • the pressure filter test device 40 comprises in the case of the present embodiment, a channel 41 and a filter chamber 42 which is connected through the channel 41 with the material outlet 22 of the extruder 20. During operation of the device 1 for testing plastic melts, the plastic melt produced by the extruder 20 is conveyed through the channel 41 into the filter chamber 42.
  • a pump Downstream of the channel 41 or the material outlet 22 there may be provided a pump, not shown and preferably controlled by the electronic control device 10, which improves the plastic melt through the channel 41 into the filter chamber 42.
  • the pressure filter test device 40 comprises a pressure sensor 43 and optionally a temperature sensor.
  • the pressure sensor 43 and optionally the temperature sensor are connected to the Filter chamber 42 coupled and connected in the case of the present embodiment with the electronic control device 10 so that they can evaluate the originating from the pressure sensor 43 and optionally from the temperature sensor signals, which in turn allows a conclusion about the currently promoted by the filter chamber 42 plastic melt.
  • the pressure filter test device 40 comprises a bearing device 44, in which a plurality of filter screens 45 are stacked in particular, stacked one above the other.
  • the pressure filter testing device 40 includes a rail 46 coupled to the storage device 45 and the filter chamber 42 and a drive 47 connected to the electronic control device 10.
  • the rail 46 and the drive 47 which preferably includes an electric motor, form a propulsion mechanism 48 that is configured Controlled by electronic control device 10, successively to move the stored in the storage device 44 filter screens 45 via the rail 46 into the filter chamber 42.
  • the filter screen currently located in the filter chamber 42 which is provided in Fig. 5 by the reference numeral 45 a, is currently used for a pressure filter test for checking the currently funded through the filter chamber 42 plastic melt.
  • the pressure filter test device 40 is set up to automatically replace the filter screen 45 a currently located in the filter chamber 42 with a new filter screen 45 under the current pressure filter test, under the control of the electronic control device 10. This is done in the case of the present embodiment by driving the feed mechanism 48 by the electronic control device 10, so that the feed mechanism 48 pushes the bottom filter 45 of the storage device 44 in the direction of the filter chamber 42, whereby the mounted on the rail 46 filter screens 45 also in the direction Filter chamber 42 are moved and the currently located in the filter chamber 42 filter 45 a is replaced by a new filter 45.
  • the filter screen used for the pressure filter test 45 a is thus consumed and automatically passes in the case of the present embodiment when replacing automatically on a sloped rail 49 and then passes, for example, in a container, not shown.
  • the spent filter screens are provided with the reference numeral 45b.
  • the plastic melt is conveyed by the filter located in the filter chamber 42 45 a.
  • the filter screen 45 a is preferably clamped in the filter chamber 42.
  • the pressure filter test device 40 comprises a suitable device, which is preferably likewise controlled by the electronic control device 10.
  • no plastic melt is conveyed through the filter chamber 42 at this time.
  • This can e.g. can be realized by the electronic control device 10, the pump and the extruder 20 controls such that no further plastic melt or no purge melt is conveyed into the filter chamber 42 or that the conveying direction of the plastic melt or the purge melt is reversed.
  • a three-way valve (not shown for the sake of clarity) is provided, which is connected between the material outlet 22 and the filter chamber 42, in particular between the pump and the filter chamber 42.
  • the three-way valve is part of the pressure filter test device 40th
  • the three-way valve has an inlet connected to the material outlet 22 or to the pump, a first outlet connected to the channel 41 or the filter chamber 42, and a second outlet, and is actuated by the electronic control device 10.
  • the three-way valve is switched so that its inlet is connected to the first outlet, so that the plastic melt from the material outlet 22 via the channel 41 into the filter chamber 42 can be promoted.
  • the inlet of the three-way valve is connected to the second outlet, so that the plastic melt or the rinsing melt is guided past the filter chamber 42.
  • the pressure filter test device 40 is designed such that thereby also the Area of the pressure filter test device 40 is heated, in which there is the filter screen 45, which is used for the next pressure filter test.
  • this filter screen 45 is already preheated before it is moved into the filter chamber 42.
  • the pressure filter test device 40 may also be configured such that no individual filter screens 45 are used for the pressure filter test, but a filter screen belt 60 shown in FIGS. 6 and 7.
  • Fig. 6 shows a part of the filter belt 60 in a plan view.
  • the filter belt 60 has a metal mesh.
  • the pressure filter test device 40 is set up to move the filter filter belt 60 bit by bit through the filter chamber 42, such that an unused portion 61 of the filter filter belt 60 is located in the filter chamber 42 for a pressure filter test.
  • the filter screen belt 60 under the control of the electronic locking device 10, is moved such that another, unused piece 61 of the filter screen belt 60 replaces the currently used piece 61.
  • the unconsumed filter belt 60 is rolled up on a rotatably mounted first roller 62 shown in FIG.
  • One end of the filter belt 60 is passed through the filter chamber 42.
  • a rotatably mounted second roller 63 is provided. This is coupled to a non-illustrated and connected to the electronic control device 10 drive, such as an electric drive, so that, controlled by the electronic control device 10, the filter belt 60 can be moved piece by piece through the filter chamber 42. As a result, the used filter screen belt 60 is rolled up piece by piece onto the second roller 63 and at the same time the unused filter screen belt is unrolled from the first roller 62.
  • the filter chamber 42 is heated.
  • the pressure filter test device 40 is designed in such a way that it also heats the area of the pressure filter test device 40 in which the piece 61 of the filter filter belt 60 that is used for the next pressure filter test is located. Thus, This piece 61 of the filter belt 60 already preheated before it is moved into the filter chamber 42.
  • the apparatus 1 for testing plastic melts is in particular designed to automatically perform a plurality of pressure filter tests.
  • an example of the operation of the plastic melt testing apparatus 1 will be described with reference to a flowchart shown in FIG. 8.
  • the storage containers 32 are provided with the individual markings 36. Prior to the pressure filter tests as such, in the case of the present embodiment, controlled by the electronic control device 10 by means of the sensor 37, the storage container 32 used in the storage device 30 is scanned. This sampling can be done arbitrarily. The storage device 30 need not be completely provided with the storage containers 32. As a result, the electronic control device 10 receives information about the positions of the storage containers 32 in the storage device 30.
  • a list of the plastic materials used with a corresponding reservoir 32 created. Double assignments are to be avoided. This list can also be created automatically.
  • the plastic materials of the storage container 32 are tested automatically in succession according to the list.
  • the sampling of the reservoirs may be repeated to detect any change made, e.g. by replacing an empty reservoir 32 by a filled with a plastic material new reservoir 32 to recognize.
  • the extruder 10 and the pressure filter test device 40 are rinsed by means of the rinsing material.
  • the Driven 23 of the extruder 20 drives, controlled by the electronic control device 10, the worm shaft 25 at.
  • the pump, if any, is also on.
  • the electronic control device 10 controls the storage device 30 and its opening mechanism 35 so that the shutter mechanism 34 of the further storage tank 33 is opened, step A of the flowchart.
  • rinsing material passes through the material inlet 21 into the extruder 2, is plasticized and is conveyed as a rinsing melt through the material outlet 22.
  • the three-way switch controlled by the electronic control device 10 is switched such that its inlet is connected to the first outlet. As a result, the rinsing melt is conveyed through the filter chamber 42.
  • the electronic control device 10 controls the opening mechanism 35 so that the shutter mechanism 34 of the further reservoir 33 is closed, step B of the flowchart.
  • the electronic control device 10 controls the storage device 30 or its storage device Opening mechanism 35 so that the shutter mechanism 34 of one of the reservoir 32 is opened, step C of the flowchart.
  • the plastic material of this reservoir 32 passes through the material inlet 21 into the extruder 20, is plasticized and is conveyed through the material outlet 22 as a plastic melt.
  • the electronic control device 10 controls the three-way valve so that its inlet is connected to the second outlet, step D of the flowchart. As a result, the rinsing melt is guided past the filter chamber 43. Thereafter, the electronic control device 10 optionally controls a shutter of the filter chamber 42 to open it. Thereafter, the electronic control device 10 controls the propulsion mechanism 48 and the drive of the second roller 62 such that the currently located in the filter chamber 42 filter 45 a is replaced by an unconsumed filter screen 45 or that currently located in the filter chamber 42 piece 61st of the filter belt 60 is replaced by an unconsumed piece 61 of the filter belt, step E of the flow chart.
  • the electronic control device 10 controls the closure of the filter chamber 42 in order to close the filter chamber 42 with the replaced filter screen 45 a or the new piece 61 of the filter screen belt 60.
  • the electronic control device 10 also controls the three-way valve so that its inlet is connected to the first outlet.
  • the pressure filter test for the current plastic melt begins by recording the data originating from the pressure sensor 43 and optionally from the temperature sensor and preferably evaluating it with the electronic control device 10.
  • the evaluation can take place during the pressure filter test or later, step G of the flow chart.
  • the pressure filter test lasts a predetermined measurement duration, during which the signals originating from the pressure sensor 43 and, if appropriate, from the temperature sensor are recorded for the evaluation.
  • the electronic control device 10 controls the storage device 30 or its opening mechanism 35 so that the shutter mechanism 34 of the other reservoir 33 is opened.
  • step H of the flow diagram As a result, further rinsing material reaches the extruder 2 via the material inlet 21 and a further rinsing melt is formed, step H of the flow diagram.
  • a predetermined period of time is preferably waited until the filter screen 45 a currently located in the filter chamber 42 or the piece 61 of the filter filter belt 60 currently located in the filter chamber 42 is replaced, ie continue with step B, to test the plastic material of another reservoir 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Clinical Laboratory Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un dispositif (1) servant à contrôler des matières plastiques fondues. L'invention concerne également un procédé pour faire fonctionner ledit dispositif (1). Ce dispositif (1) servant à contrôler des matières plastiques fondues comprend une extrudeuse (20) pourvue d'une entrée de matière (21) et d'une sortie de matière (22), un dispositif d'approvisionnement (30) relié à l'entrée de matière (21), un dispositif de test (40) destiné à déterminer la valeur de pression du filtre lors d'un essai et relié à la sortie de matière (22), ainsi qu'un dispositif de commande électronique (10) couplé à l'extrudeuse (20), au dispositif d'approvisionnement (30) et au dispositif de test (40).
PCT/EP2017/075659 2016-10-10 2017-10-09 Dispositif et procédé permettant de contrôler des matières plastiques fondues WO2018069238A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17780758.3A EP3341180A1 (fr) 2016-10-10 2017-10-09 Dispositif et procédé permettant de contrôler des matières plastiques fondues

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016119175.2A DE102016119175B4 (de) 2016-10-10 2016-10-10 Vorrichtung zur Prüfung von Kunststoffschmelzen und Verfahren zum Betreiben einer Vorrichtung zur Prüfung von Kunststoffschmelzen
DE102016119175.2 2016-10-10

Publications (1)

Publication Number Publication Date
WO2018069238A1 true WO2018069238A1 (fr) 2018-04-19

Family

ID=60037623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/075659 WO2018069238A1 (fr) 2016-10-10 2017-10-09 Dispositif et procédé permettant de contrôler des matières plastiques fondues

Country Status (3)

Country Link
EP (1) EP3341180A1 (fr)
DE (1) DE102016119175B4 (fr)
WO (1) WO2018069238A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111855491A (zh) * 2019-04-28 2020-10-30 中国石油化工股份有限公司 聚合物熔体流动状态的检测方法和装置
WO2021229111A1 (fr) 2020-05-12 2021-11-18 Laboratorios Farmacéuticos Rovi, S.A. Procédé pour la purification de particules polymères thermoplastiques biodégradables à usage médical et/ou pharmaceutique
CN113702242A (zh) * 2021-09-04 2021-11-26 西南石油大学 一种乳化液堵塞疏通用测试装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111141778A (zh) * 2019-12-31 2020-05-12 联想(北京)有限公司 电子设备和信息处理方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551659A2 (fr) * 2011-07-27 2013-01-30 Goettfert Werkstoff-Pruefmaschinen Gmbh Dispositif et procédé de vérification de la pureté et des propriétés rhéologiques de matières plastiques fondues
DE102013100812A1 (de) * 2013-01-28 2014-07-31 Windmöller & Hölscher Kg Verfahren für einen Materialwechsel bei einer Extrusionsvorrichtung
WO2016037206A2 (fr) 2014-09-10 2016-03-17 Next Generation Analytics Gmbh Procédé et dispositif de production et de test de pièces
WO2016142242A1 (fr) * 2015-03-09 2016-09-15 Dr. Collin Gmbh Dispositif et procédé d'essais de matériaux

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150796C2 (de) * 2001-10-15 2003-08-07 Collin Gmbh Dr Vorrichtung zur Prüfung der Reinheit von Kunststoffschmelzen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551659A2 (fr) * 2011-07-27 2013-01-30 Goettfert Werkstoff-Pruefmaschinen Gmbh Dispositif et procédé de vérification de la pureté et des propriétés rhéologiques de matières plastiques fondues
DE102011109871A1 (de) 2011-07-27 2013-01-31 Göttfert Werkstoff-Prüfmaschinen GmbH Vorrichtung und Verfahren zur Prüfung der Reinheit und der rheologischen Eigenschaften von Kunststoffschmelzen
DE102013100812A1 (de) * 2013-01-28 2014-07-31 Windmöller & Hölscher Kg Verfahren für einen Materialwechsel bei einer Extrusionsvorrichtung
WO2016037206A2 (fr) 2014-09-10 2016-03-17 Next Generation Analytics Gmbh Procédé et dispositif de production et de test de pièces
WO2016142242A1 (fr) * 2015-03-09 2016-09-15 Dr. Collin Gmbh Dispositif et procédé d'essais de matériaux

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CARSTEN LÜDTGE: "Qualitätsrezept für hochwertige Masterbatches", KUNSTSTOFFE, vol. 9, no. 2005, 30 September 2005 (2005-09-30), pages 176 - 177, XP055432228 *
N.N.: "Dr. Collin: 7 Proben + 7 Filter = 7 Prüfungen pro Systemlauf | K-AKTUELL.de", K-AKTUELL, 15 April 2015 (2015-04-15), Bad Homburg, pages 1 - 2, XP055431943, Retrieved from the Internet <URL:http://www.k-aktuell.de/dr-collin-7-proben-7-filter-7-pruefungen-in-einem-systemlauf-18136/> [retrieved on 20171205] *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111855491A (zh) * 2019-04-28 2020-10-30 中国石油化工股份有限公司 聚合物熔体流动状态的检测方法和装置
CN111855491B (zh) * 2019-04-28 2023-08-22 中国石油化工股份有限公司 聚合物熔体流动状态的检测方法和装置
WO2021229111A1 (fr) 2020-05-12 2021-11-18 Laboratorios Farmacéuticos Rovi, S.A. Procédé pour la purification de particules polymères thermoplastiques biodégradables à usage médical et/ou pharmaceutique
CN113702242A (zh) * 2021-09-04 2021-11-26 西南石油大学 一种乳化液堵塞疏通用测试装置

Also Published As

Publication number Publication date
EP3341180A1 (fr) 2018-07-04
DE102016119175A1 (de) 2018-04-12
DE102016119175B4 (de) 2018-05-24

Similar Documents

Publication Publication Date Title
WO2018069238A1 (fr) Dispositif et procédé permettant de contrôler des matières plastiques fondues
DE69122925T2 (de) Münzsortierer
EP2702386B1 (fr) Dispositif de poinçonnage pourvu d&#39;une unité de préhension
EP3296075B1 (fr) Dispositif de transport d&#39;une matière visqueuse provenant d&#39;un récipient et procédé de fonctionnement du dispositif de transport
EP2207019A1 (fr) Support de produit à peser pour une balance
EP2065101A1 (fr) Machine de laquage
EP0144715A1 (fr) Dispositif de transfert de composants, particulièrement des puces intégrées, d&#39;un bac d&#39;entrée à un bac de sortie
WO2021180793A1 (fr) Dispositif et procédé d&#39;apprentissage de parfums à un animal
DE10347565B4 (de) Reinigungssystem für einen Rücknahmeautomaten für Leergutbehälter, Reinigungsmodul und Verfahren zum Betreiben eines Rücknahmeautomaten
DE102017109375A1 (de) Verfahren zum Polstern von Gegenständen in einem Behälter, sowie Vorrichtung zum Polstern von Gegenständen in einem Behälter
EP3191288B1 (fr) Dispositif pour la production et pour tester de pièces
DE102016015240A1 (de) Reinigungseinrichtung zum Reinigen von Kanälen und Rohren und Verfahren zum Betreiben der Reinigungseinrichtung
EP1811468A1 (fr) Appareil de distribution pour un automate de reprise
EP2633921A1 (fr) Installation de laquage alimentée par une pompe monopiston
DE102007004472A1 (de) Verfahren und Vorrichtung zur Ermittlung des Füllgrades von Medienbehältern
DE19744980C2 (de) Verladestation für Schüttgut
DE102012021997A1 (de) Verfahren zum Herstellen von Getränkebehältnissen und Vorrichtung zum Herstellen von Getränkebehältnissen
DE3922835C2 (fr)
WO2001089932A1 (fr) Machine a remplir les tubes
DE102005022954A1 (de) Verfahren und Vorrichtungen zum Entleeren von Farbe aus dem Farbkasten eines Farbwerks einer Druckmaschine
DE10221827A1 (de) Verfahren und Vorrichtung zum Beschicken eines Behälters mit Feststoffen
DE102013217971B4 (de) Mehrkomponentendosiereinrichtung
WO2016142244A2 (fr) Dispositif et procédé d&#39;essai de liquides
WO2018065079A1 (fr) Machine et procédé de nettoyage du ballast sur une voie ferrée
DE8908096U1 (de) Vorrichtung zum Verflüssigen eines hochpolymeren, thermoplastischen Werkstoffes

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2017780758

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17780758

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE