SU712252A2 - Apparatus for making tubular articles from thermoplastic material - Google Patents
Apparatus for making tubular articles from thermoplastic material Download PDFInfo
- Publication number
- SU712252A2 SU712252A2 SU2668105A SU2668105A SU712252A2 SU 712252 A2 SU712252 A2 SU 712252A2 SU 2668105 A SU2668105 A SU 2668105A SU 2668105 A SU2668105 A SU 2668105A SU 712252 A2 SU712252 A2 SU 712252A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- poles
- magnet
- ring
- thermoplastic material
- sleeve
- Prior art date
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
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
-
- 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
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
Изобретение относитс к нереработке полимерных материалов, в частности к агрегатам дл производства рукавной пленки из термопластов, и вл етс усовершенствованием изобретени по авт. св. № 597560, содержащего корпус экструзионной головки с с расположенным в нем дорном, охлаждающее кольцо и магнитный узел, выполненный в виде образующих между собой зазор дл прохода заготовки издели двух кольцевых посто нных магнитов с полюсами по торцам , один из которых установлен на охлаждающем кольце, а второй смонтирован на корпусе экструзионной головки, при этом противолежащие полюса магнитов выполнены разноименными. Известное устройство малоэффективно в работе. . При перемещении расплава заготовки издели - рукава в зазоре между магнитами, рукав дважды пересекает противоположно направленные магнитные пол в зоне кристаллизации . Тем самым вызываетс нестабильна ориентаци кристаллов расплава при прохождении разнонаправленных магнитных полей, что снижает прочность издели . Целью изобретени вл етс повыщение прочности изделий за счет обеспечени стабильности ориентации кристаллов расплава термопласта. Цель достигаетс благодар тому, что посто нные магниты выполнены конусообразными с сближенными верхними разноименными полюсами и соединены нижними торцевыми полюсами с корпусом экструзионной головки один - посредством кольца и второй - посредством стакана из паромагнитного материала, которыми снабжено устройство . Верхние разноименные полюса магнитов образуют кольцевую щель дл прохода рукава пленки. А нижние полюса, за счет конусности магнитов, удалены от движущегос рукава, и нижний полюс внещлего магнита в охлаждающем кольце замкнут кольцом на корпус головки, а второй внутренний магнит прикреплен нижним торцем к стакану , который скольз ще входит в дорн и прикреплен к щтоку его подъема. Таким образом, магнитное поле между нижними полюсами магнитов посто нно замкнуто на корпус экструзионной головки и вследствие большой массы головки, рассеиваетс , исключа образование напр женного участка между полюсами. Расплав термопласта рукава пленки пересекает только одно посто нное магнитное поле, чем улучшаетс упрочнение издели благодар The invention relates to the non-processing of polymeric materials, in particular to units for the production of a tubular film of thermoplastics, and is an improvement of the invention according to the author. St. No. 597560, comprising an extrusion die body with a mandrel located therein, a cooling ring and a magnet assembly, made in the form of two annular permanent magnets with a pole along the ends, one of which is mounted on the cooling ring, and the second is mounted on the body of the extrusion head, while the opposite poles of the magnets are opposites. The known device is ineffective in operation. . When moving the melt of the workpiece - the sleeve in the gap between the magnets, the sleeve twice crosses the oppositely directed magnetic fields in the crystallization zone. This causes an unstable orientation of the melt crystals during the passage of differently directed magnetic fields, which reduces the strength of the product. The aim of the invention is to increase the strength of the products by ensuring the stability of the orientation of the melt crystals of the thermoplastic. The goal is achieved due to the fact that the permanent magnets are made cone-shaped with close upper opposite poles and are connected by bottom end poles to the body of the extrusion head, one by means of a ring and the second by means of a cup of vapor-magnetic material with which the device is fitted. The upper opposite poles of the magnets form an annular gap for the passage of the film sleeve. And the lower poles, due to the taper of the magnets, are removed from the moving sleeve, and the lower pole of the outer magnet in the cooling ring is closed by a ring on the head body, and the second inner magnet is attached to the cup by a lower end, which slides into the mandrel and is attached to the lifting rod. . Thus, the magnetic field between the lower poles of the magnets is permanently closed on the body of the extrusion head and, due to the large mass of the head, is dissipated, eliminating the formation of a stressed section between the poles. The thermoplastic melt of the film sleeve intersects only one constant magnetic field, which improves the strengthening of the product due to
ориентации кристаллов только в одиом посто нном магнитном поле.orientation of crystals only in one constant magnetic field.
На чертеже изображено устройство, общий вид, вертикальный разрез.The drawing shows the device, General view, vertical section.
Устройство содержит корпус 1 экструзиоиной головки, на котором установлено охлаждающее кольцо 2 дл охлаждени рукава пленки воздухом. В охлаждающее кольцо 2 встроен посто нный кольцевой магнит 3 магнитного узла, а второй его кольцевой магнит 4 нижним торцем закреплен на стакане 5 из паромагнитного материала .The device comprises an extrusion head body 1 on which a cooling ring 2 is mounted for air cooling of the film sleeve. A permanent ring magnet 3 of the magnet assembly is embedded in the cooling ring 2, and its second ring magnet 4 is fixed to the cup 5 of a vapor-magnetic material by its bottom end.
Магнит 3 замкнут нижним полюсом на корпус 1 кольцом 6 из паромагнитного материала . Магниты 3 и 4 выполнены конусообразными и верхними торцевыми сближенными разноименными полюсами обращены друг к другу, образу одно концентричное поле, а нижними полюсами магниты замкнуты на корпус 1 головки посредством стакана 5 и кольца 6 за счет чего происходит рассеивание нижнего магнитного пол . Зазор между верхними полюсами магнитов выполнен минимальным, чтобы создать напр женное магнитное поле и одновременно обеспечить проход рукава.The magnet 3 is closed by a lower pole on the body 1 by a ring 6 of a vapor-magnetic material. The magnets 3 and 4 are made cone-shaped and the upper end approximate opposite poles face each other, forming a single concentric field, and the bottom poles of the magnets are closed onto the head body 1 by means of cup 5 and ring 6, thereby dissipating the lower magnetic field. The gap between the upper poles of the magnets is minimal, in order to create a strong magnetic field and at the same time ensure the passage of the sleeve.
Стакан 5 прикреплен к подвижному щтоку 7, который посредством поворотной гайки 8 с руко тками закреплен на нижнем конце дорна 9, установленного в корпусе 1 экструзионной головкн. Шток 7 может перемещатьс в вертикальной плоскости относительно оси экструзионной головки.The glass 5 is attached to the movable brush 7, which is fixed to the lower end of the mandrel 9 mounted in the body 1 of the extrusion die by means of a rotary nut 8 with handles. The rod 7 can move in a vertical plane relative to the axis of the extrusion head.
Шток 7 имеет по всей длине сверление а дл подвода воздуха на раздув рукава.The rod 7 has a drilling along the entire length for supplying air to the blowing sleeve.
В стакане 5 закреплен щтифт 10, которш перемещаетс в вертикальном пазе б дорна 9 при подъеме, чем предотвращаетс поворот стакана 5.In the glass 5, a pin 10 is fixed, which moves in the vertical groove of the mandrel 9 during lifting, which prevents the rotation of the glass 5.
При перемещении штока 7 вниз с закрепленным стаканом 5 и магнитом 4, последний входит в гнездо А дорна 9, что необходимо дл ручной выт жки и заправки рукава при пуске устройства в работу.When the rod 7 is moved downward with a fixed glass 5 and a magnet 4, the latter enters the socket A of the mandrel 9, which is necessary for manual drawing and filling the sleeve when the device is put into operation.
Устройство работает следующим образом. При пуске устройства магнит 4 опущен в гнездо А дорна 9 головки, производитс заправка рукава в приемно-т нущее устройство агрегата (не показано).The device works as follows. When the device is started up, the magnet 4 is lowered into the socket A of the mandrel 9 of the head, the sleeve is filled into the receiving device of the unit (not shown).
При выходе устройства на стабильный режим работы, то есть когда экструдируетс When the device enters a stable mode of operation, i.e. when extruded
стабильно рукав пленки, посредством гайкиstable film sleeve, by nut
8 магнит 4 на стакане 5 поднимаетс на8 magnet 4 on glass 5 rises on
уровень магнита 3.magnet level 3.
Рукав пленки в расплавленном состо нии проходит через одно магнитное поле, что обеспечивает стабильную ориентацию кристаллов расплава термопласта.The film in the molten state passes through a single magnetic field, which ensures a stable orientation of the thermoplastic melt crystals.
Напр женность магнитного пол можно изменить перемещением магнита 4 вверх. Когда рассто ние между полюсами увеличиваетс , напр женность магнитного пол ослабевает.The intensity of the magnetic field can be changed by moving the magnet 4 upwards. When the distance between the poles increases, the magnetic field strength decreases.
Данное устройство позвол ет улучшитьThis device allows you to improve
услови ориентации пленки в зоне кристаллизации и повысить прочность изделий.condition the orientation of the film in the crystallization zone and increase the strength of products.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2668105A SU712252A2 (en) | 1978-09-26 | 1978-09-26 | Apparatus for making tubular articles from thermoplastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2668105A SU712252A2 (en) | 1978-09-26 | 1978-09-26 | Apparatus for making tubular articles from thermoplastic material |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU597560 Addition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU712252A2 true SU712252A2 (en) | 1980-01-30 |
Family
ID=20786881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2668105A SU712252A2 (en) | 1978-09-26 | 1978-09-26 | Apparatus for making tubular articles from thermoplastic material |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU712252A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110053244A (en) * | 2019-05-31 | 2019-07-26 | 重庆瑞霆塑胶有限公司 | Vane device is used in blow molding |
-
1978
- 1978-09-26 SU SU2668105A patent/SU712252A2/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110053244A (en) * | 2019-05-31 | 2019-07-26 | 重庆瑞霆塑胶有限公司 | Vane device is used in blow molding |
| CN110053244B (en) * | 2019-05-31 | 2021-05-28 | 重庆瑞霆塑胶有限公司 | Wind ring device for blow molding |
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