SU1172737A1 - Extruder for processing polymeric materials - Google Patents
Extruder for processing polymeric materials Download PDFInfo
- Publication number
- SU1172737A1 SU1172737A1 SU843748899A SU3748899A SU1172737A1 SU 1172737 A1 SU1172737 A1 SU 1172737A1 SU 843748899 A SU843748899 A SU 843748899A SU 3748899 A SU3748899 A SU 3748899A SU 1172737 A1 SU1172737 A1 SU 1172737A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- shafts
- gears
- extruder
- possibility
- polymeric materials
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/241—Drive means therefor; screw bearings
-
- 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
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/41—Intermeshing counter-rotating screws
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
ЭКСТРУДЕР ДЛЯ ПЕРЕРАБОТКИ ПОЛИМЕРНЫХ МАТЕРИАЛОВ, содержащий размещенные в корпусе два шнека на валах, механизм вращени шнеков, включающий установленные на валах две щестерни , два промежуточных вала, один из которых установлен с возможностью ограниченного осевого перемещени и снабжен двум щестерн ми с противоположно наклонными зубь ми, приводной вал и двигатель, отличающийс тем, что, с целью уменьшени габаритов экструдера, второй промежуточный вал снабжен двум щестерн ми с противоположно наклонными зубь ми и установлен с возможностью ограниченного осевого перемещени , при этом шестерн каждого из валов находитс в зацеплении с парой шестерен промежуточных валов, коi торые кинематически св заны с приводным валом. (Л 1C оо EXTRUDER FOR PROCESSING POLYMERIC MATERIALS, containing two augers located on the housing on the shafts, a screw rotation mechanism including two tinesters mounted on the shafts, two intermediate shafts, one of which is installed with the possibility of limited axial movement and equipped with two shchestrennyh with oppositely inclined teeth, a drive shaft and a motor, characterized in that, in order to reduce the dimensions of the extruder, the second intermediate shaft is provided with two teeth with oppositely inclined teeth and is mounted with the possibility of limited axial movement, with the gear of each of the shafts meshed with a pair of gears of the intermediate shafts, which are kinematically connected with the drive shaft. (L 1C oo
Description
Изобретение относитс к полимерному машиностроению и может быть использовано при создании многошнеквоых экструдеров. Цель изобретени - уменьшение габаритов экструдера. На фиг. 1 показан зкструдер дл переработки поли:1у1ернь1х материалов, обш,ий вид; на фиг. 2 - то же, горизонтальный разрез; на фиг. 3 - сечение А-А на фиг. 1; на фиг. 4 - сечение Б-Б на фиг. 1; на фиг. 5 - кинематическа схема механизма вращени первого и-второго валов шнеков. Экструдер содержит два шнека 1 и 2 на валах, размещенные в корпусе 3, имеющем загрузочное отверстие 4. Шнеки 1 и 2 через зубчатые муфты 5 и 6 соединены с механизмо.м вращени шнеков , включающим установленные на валах 7 и 8 шестерни (ведомые) 9 и 10, промежуточные валы 11 и 12, установленные с возможностью ограниченного осевого перемещени . На каждом из промежуточных валов И и 12 установлены щестерни 13, 14 и 15, 16 с противоположно наклонными зубь ми, при этом шестерни 9 и 10 валов 7 и 8 установлены с зацеплением соответственно с парой шестерен 13, 14 и 15, 16 промежуточных валов 11 и 12. Через пары шестерен 17, 18 и 19, 18 промежуточные валы св заны с приводным валом 20 электродвигател . Дл воспри ти осевых усилий шнеков предусмотрены блоки осевых подшипников 21 и 22. Экструдер работает следующим образом. При включении двигател через приводной вал пары щестерен 17, 18 и 19, 18 промежуточные валы II и 12 с щестерн ми 13, 14 и 15, 16 привод тс во вращение шестернк 9 и 10 и вместе с ними валы 7 и 8, передающие вращение шнекам 1 и 2. Подаваемый в загрузочное отверстие 4 полимерный материал гомогенизируетс , пластифицируетс и транспортируетс шнеками 1 и 2. При вращении промежуточных валов 11 и 12 в направлении, указанном стрелкой на фиг. 1 осевые усили в зацеплении щестерен 13 и 14 уравновешиваютс усили ми в зацеплении щестерен 15 и 16, так как эти шестерни имеют одинаковые передаточные числа и углы наклона зубьев. Возможность перемещени промежуточных валов в осевом направлении обеспечивает их наиболее благопри тное положение дл равномерной нагрузки зубьев, благодар чему шестерни 13-16 передают одинаковый крут щий момент. Вследствие этого на шестерни 9 и 10 воздействуют равные противоположно направленные к каждой из них радиальные усили Р (фиг. 3 и 4). Изгибающие силы, действующие на ва7 и «, от радиальных усилий в зацеплении незначительны. Изобретение позвол ет уменьшить в сравнении с известным техническим решением количество промежуточных валов и зубчатых колес, что уменьшает габариты устройства .This invention relates to polymer engineering and can be used to create multi-screw extruders. The purpose of the invention is to reduce the dimensions of the extruder. FIG. Figure 1 shows an extruder for processing poly: first-class materials, general view; in fig. 2 - the same, horizontal section; in fig. 3 is a section A-A in FIG. one; in fig. 4 is a section BB in FIG. one; in fig. 5 shows a kinematic diagram of the mechanism for rotating the first and second shafts of the screws. The extruder contains two screws 1 and 2 on the shafts placed in the housing 3 having a loading opening 4. The screws 1 and 2 are connected via gear sleeves 5 and 6 to the mechanism of rotation of the screws including gears (driven) 9 installed on shafts 7 and 8 and 10, intermediate shafts 11 and 12, which are installed with the possibility of limited axial movement. Gears 13, 14 and 15, 16 with oppositely inclined gears are mounted on each of the intermediate shafts I and 12, while the gears 9 and 10 of the shafts 7 and 8 are mounted with gearing respectively with a pair of gears 13, 14 and 15, 16 of the intermediate shafts 11 and 12. Through pairs of gears 17, 18 and 19, 18, the intermediate shafts are connected to the drive shaft 20 of the electric motor. To absorb the axial forces of the screws, axial bearing blocks 21 and 22 are provided. The extruder operates as follows. When the engine is turned on, through a drive shaft, a pair of tweezers 17, 18, and 19, 18, intermediate shafts II and 12 with gear 13, 14, and 15, 16 are driven to rotate gears 9 and 10, and with them shafts 7 and 8, transmitting rotation to screws 1 and 2. The polymeric material supplied to the charging opening 4 is homogenized, plasticized and transported by screws 1 and 2. When the intermediate shafts 11 and 12 are rotated in the direction indicated by the arrow in FIG. 1, the axial forces in the engagement of the gears 13 and 14 are balanced by the forces in the engagement of the gears 15 and 16, since these gears have the same gear ratios and the angles of inclination of the teeth. The possibility of moving the intermediate shafts in the axial direction ensures their most favorable position for uniform loading of the teeth, whereby the gears 13-16 transfer the same torque. As a consequence, the gears 9 and 10 are affected by equal oppositely directed radial forces P to each of them (Fig. 3 and 4). The bending forces acting on ba7 and "from radial forces in the mesh are insignificant. The invention makes it possible to reduce in comparison with the known technical solution the number of intermediate shafts and gears, which reduces the size of the device.
15381538
6 76 7
фиг. 2 А-А Сриг. 3FIG. 2 AA Srig. 3
CPUS. 5 5-5 ( puz-tfCPUS. 5 5-5 (puz-tf
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU843748899A SU1172737A1 (en) | 1984-06-04 | 1984-06-04 | Extruder for processing polymeric materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU843748899A SU1172737A1 (en) | 1984-06-04 | 1984-06-04 | Extruder for processing polymeric materials |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1172737A1 true SU1172737A1 (en) | 1985-08-15 |
Family
ID=21122138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU843748899A SU1172737A1 (en) | 1984-06-04 | 1984-06-04 | Extruder for processing polymeric materials |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1172737A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0679495A1 (en) * | 1994-04-22 | 1995-11-02 | Johannes Dr.-Ing. Weber | Drive for a double-screw extruder |
-
1984
- 1984-06-04 SU SU843748899A patent/SU1172737A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 763129, кл. В 29 F 3/01, 1977. Авторское свидетельство СССР j4o 692553, кл. В 29 F 3/01, 1974. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0679495A1 (en) * | 1994-04-22 | 1995-11-02 | Johannes Dr.-Ing. Weber | Drive for a double-screw extruder |
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