SU576223A1 - System for stabilizing processing parameters of material being extruded - Google Patents

System for stabilizing processing parameters of material being extruded

Info

Publication number
SU576223A1
SU576223A1 SU7301872770A SU1872770A SU576223A1 SU 576223 A1 SU576223 A1 SU 576223A1 SU 7301872770 A SU7301872770 A SU 7301872770A SU 1872770 A SU1872770 A SU 1872770A SU 576223 A1 SU576223 A1 SU 576223A1
Authority
SU
USSR - Soviet Union
Prior art keywords
extruder
extruded
processing parameters
stabilizing processing
scheme
Prior art date
Application number
SU7301872770A
Other languages
Russian (ru)
Inventor
Борис Николаевич Значковский
Original Assignee
Предприятие П/Я В-8406
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 Предприятие П/Я В-8406 filed Critical Предприятие П/Я В-8406
Priority to SU7301872770A priority Critical patent/SU576223A1/en
Application granted granted Critical
Publication of SU576223A1 publication Critical patent/SU576223A1/en

Links

Classifications

    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
    • B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
    • 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
    • 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
    • B29C2948/92009—Measured parameter
    • B29C2948/92209—Temperature
    • 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
    • B29C2948/92361—Extrusion unit
    • B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/924—Barrel or housing
    • 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
    • B29C2948/92361—Extrusion unit
    • B29C2948/92409—Die; Nozzle zone
    • 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
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—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
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone

Description

1one

Изобретение относитс  к области переработки материалов методом экструзии.This invention relates to the field of materials extrusion.

Известны способы стабилизации лроцесеа экструзии путем регулировани  давлени  изменением скорости вращени  черв ка или путем регулировани  температуры изменением коэффицие-нта дросселировани  1.There are known methods for stabilizing the extrusion process by adjusting the pressure by varying the speed of rotation of the screw or by adjusting the temperature by changing the coefficient of choking 1.

Каждый из известных .способов предполагает регулирование только одного те.хнологического параметра, что ие обеспечивает получение изделий хорошего качества.Each of the known methods involves the regulation of only one technological parameter, which does not ensure the production of good quality products.

Известна также схема стабилизации технологических параметров зкструдата, содерл аща  экструдер с устройством стабилизированной запитки и фор.мующей голов кой, регул торы температуры с измерительными термопарами , установленными в зонах нагрева (охлаждени ) экструдера, регул тор давлени  с у.стано;вленнЫ)МИ в формующей головке датчиком давлени . Последн   из указанных выше схем  вл етс  (более близкой к описываелюму изобретению. Педостатком этой схемы  вл етс  наличие оульсации в зкости расплава, а следовательно и производительности экструдера .Also known is a scheme for stabilizing the technological parameters of an extruder, containing an extruder with a stabilized power supply unit and a shaping head, temperature controllers with measuring thermocouples installed in the heating (cooling) zones of the extruder, pressure regulator with stationary; die head pressure sensor. The last of the above schemes is (closer to the description of the invention. The main disadvantage of this scheme is the presence of a melt viscosity viscosity, and hence an extruder output.

С целью улучшени  качества издели  за счет стабилизации в зкости расплава предлагают схему, отличающуюс  от известной тем, что выход регул тора давлени  через регулируемые элементы соединен с задающими цеп ми регул торов температуры.In order to improve the quality of the product by stabilizing the melt viscosity, a scheme is proposed that differs from that known in that the output of the pressure regulator through adjustable elements is connected to the master circuits of the temperature regulators.

На чертеже приведена схема стабилизации технолагических параметров экструдата.The drawing shows the stabilization scheme of the technological parameters of the extrudate.

Схема состоит из экструдера 1, с устройством дл  стабилизированной дозированной запитки 2, и формующей головкой 3, зол нагреза (охлаждени ) 4 экструдера, в которые в.монтировань термопары 5 и подключены к терморегул торам 6. В фор.ующсп голозке 3 экструдера 1 установлен датчик давлени  расплава 7, подключенный к регул тору давлени  8. Выход последнего через регулируемые элементы 9 соединен с задающими цеп ми .(на схеме не  оказаны) терморегул торов б таким образом, что выход регул тора давлени  8 может измен ть уставки температуры, поддерживаемые терморегул торами б в зонах нагрева 4 экструдера 1.The scheme consists of an extruder 1, with a device for stabilized dosed feeding 2, and a forming head 3, a heating or cooling extruder 4, in which thermometer is mounted in 5 and connected to thermostats 6. In the hollow head 3 extruder 1 is installed Melt pressure sensor 7 connected to pressure regulator 8. The output of the latter through adjustable elements 9 is connected to the master circuits. (There are no thermostats in the diagram) so that the output of pressure regulator 8 can change the temperature settings, maintaining mye thermoregulatory tori used in 4 heating zones of the extruder 1.

Предлагаема  схема работает следуюц 1,им образом.The proposed scheme works as follows 1, it follows.

Экструдер 1 осуществл ет известным способом стабилизированную запитку, пластикацию, го.могенизацию и выдавливание через формующую головку 3 перерабатьг:вае ого термопласта . Температуры, измер емые термопарами 5 в зонах нагрева (охлал дени ) 4 лоддерл иваютс  на заданных уровн х терморегул торами 6 за счет регулировани  мощностей нагрева (или охлаждени ).The extruder 1 performs, in a known manner, stabilized feeding, kneading, homogenization and extrusion of a fresh thermoplastic through the forming head 3. The temperatures measured by thermocouples 5 in the heating zones (cooled) 4 of the water heaters are maintained at predetermined levels by thermostats 6 by adjusting the heating (or cooling) powers.

SU7301872770A 1973-01-12 1973-01-12 System for stabilizing processing parameters of material being extruded SU576223A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU7301872770A SU576223A1 (en) 1973-01-12 1973-01-12 System for stabilizing processing parameters of material being extruded

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7301872770A SU576223A1 (en) 1973-01-12 1973-01-12 System for stabilizing processing parameters of material being extruded

Publications (1)

Publication Number Publication Date
SU576223A1 true SU576223A1 (en) 1977-10-15

Family

ID=20539486

Family Applications (1)

Application Number Title Priority Date Filing Date
SU7301872770A SU576223A1 (en) 1973-01-12 1973-01-12 System for stabilizing processing parameters of material being extruded

Country Status (1)

Country Link
SU (1) SU576223A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759890A (en) * 1985-12-21 1988-07-26 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Process for monitoring a screw or worm extruder, particularly a pin-cylinder extruder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759890A (en) * 1985-12-21 1988-07-26 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Process for monitoring a screw or worm extruder, particularly a pin-cylinder extruder

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