Установка для получения плоскостабилизированной полиэтиленовой сетки

Изобретение относится к производству плоских сеток из термопластичных материалов и может быть использовано в химической, текстильной и легкой промьшленности. Цель изобретения - повышение качества получаемой сетки за счет обеспечения стабильности форм ее ячеек. Для этого установка содержит последовательно смонтированные на платформе ширительное, вытягивающее и термофик- сирующее устройства. Ширительное устройство выполнено в виде скругленной угловой рамы, снабженной регулирующим устройством и закрепленной одним концом на платформе. Вытягивающее устройство вьшолнено в виде приводного съемного валка, снабженного фигурными колками; Установка термофиксации выполнена в виде двух стационарно ус- тановленньк сосудов соответственно для горячей и холодной воды. 1 ил. € (Л ...

DEVICE FOR LATTICEWORK FABRICATION

Экструзионная головка для изготовления плоских сеток из пластмасс

Изобретение касается изготовления изделий из полимерных материалов экструзией , в частности, плоских сеток из пластмасс. Цель изобретения - повышение качества плоских сеток с шагом нитей по ширине полотна до 80 мм. Экструзионная головка содержит накопительную камеру для подачи расплава и подвижную и неподвижную формующие фильтры с формующими каналами для продольных нитей. По всей ширине фильер между накопительной камерой и формующими каналами выполнены канавки для формования поперечных нитей. Новым в головке является закрепление подвижной фильеры на валу, смонтированном с возможностью поворота вокруг собственной оси. Вал снабжен приводом качающегося перемещения. При повороте вала по часовой стрелке фильеры сжаты и расплав поступает в формующие каналы, образуя продольные нити сетки. При повороте вала против часовой стрелки между фильерами образуется щель, через которую выдавливается поперечная нить изготавливаемой сетки. 3 ил.

Устройство для экструдирования ячеистой перегородки и ячеистая перегородка

Изобретение относится к экструзионно- му формованию ячеистой перегородки и к конструкции ячеистой перегородки. Цель изобретения - повышение прочности перегородки и удешевление ее изготовления. Для этого устройство содержит два элемента , скользящие один относительно другого вдоль секущей поверхности направления выхода продукта в режиме периодического движения. Один из элементов образован фильерой с отверстием для прохода продукта в виде по меньшей мере одной прорези в форме ломаной линии. Другой элемент является отражателем, снабженным окном, частично открывающим указанное отверстие между своими ближайшими двумя противоположными краями. Размер окна. измеренный между указанными противоположными краями, превышает наибольшую ширину прорези. Т.о. можно непрерывно получать трехмерную ячеистую перегородку путем экструзии через фильеру пастообразного материала и затвердевания вне фильеры . Каждая ячейка ограничена множеством стенок, поперечных толщине пластины. По меньшей мере две из указанных ...

Device of manufacture uninterrupted by extrusion of a three-dimensional alveolar wall, alveolar wall while resulting.

EXTRUSION AND ITS USE

GEOGRIDS

MOLECULARLY ORIENTATING PLASTICS MATERIAL

An integral plastics material starting sheet has a square or rectangular pattern of holes defining strand-forming zones. The strandforming zones are formed with depressions with the sheet at a low or ambient temperature. The sheet is then stretched to form the strand-forming into orientated strands.

MOLECULARLY ORIENTATING PLASTICS MATERIAL

GEOGRIDS

A starting material is stretched longitudinally to produce a geogrid. The starting material has pronounced ribs on each face, merging into sloping sides. Between the ribs, there are holes on a square grid. The mean thickness of the longitudinal elements is substantially greater than the mean thickness of the interconnecting elements, and the cross-sectional area of the longitudinal elements is at least 2.5 times the transverse cross-sectional area of the interconnecting elements. The longitudinal elements are stretched out into continuous oriented strands. The centres of the junctions reduce in thickness by at least 10% but substantially less than the percentage reduction at the thinnest parts of the strands.

Verfahren zur Herstellung eines kontinuierlichen Streifens eines Netzes aus thermoplastischem Material sowie Vorrichtung zur Ausführung des Verfahrens

Welding-mark-free injection molding structure of precise automobile grille mold

Adjustable constant-force screen manufacturing device and using method thereof

PROCESS OF PRODUCTION Of a NET AND NET OBTAINED

DEVICE OF MANUFACTURE Of an ALVEOLAR PLATE, PLATES ALVEOLAR WHILE RESULTING

METHOD FOR PRODUCING A SEPARATION NET AND SEPARATION NET

DEVICE FOR THE CONTINUOUS FABRICATION BY EXTRUSION OF A TRIDIMENSIONAL ALVEOLAR WALL, ALVEOLAR WALL THUS OBTAINED

RETICULAR BODY INCLUDING GLASS FIBER AND ITS MANUFACTURE

PURPOSE: To obtain a reticular body including glass fiber for civil engineering with large strength, by laminating thermoplastic synthetic resin sheets and long glass fiber mats, and by heat-fusing them to be pressed. CONSTITUTION: With the upper and lower sections of the thermoplastic synthetic resin sheet 1b of polypropylene, polyethylene, or the like, long glass fiber mats 2a, 2b through rolls 3, 4 are put together, and with the upper and lower sections of the mats, thermoplastic synthetic resin sheets 1a, 1c fed from rolls 5, 6 are put together. After the laminate units are pressure-integrated with each other by a laminating device 7, the units are softened by fusion by a heater 9 and a reticular body 16 of a specified length is formed in press processings 10, 13, 18. The strength of the resulting reticular body 16 including glass fiber obtained is large, and the obtained reticular body can be used for the sheathing of the inclined surface of banking, the reinforcing of poor subsoil ...

METHOD OF FORMING ORIENTATION STRAND BY STRETCHING PLASTIC SUBSTANCE WITH HOLE OR MESH HOLE

TRAVERSE DRAWING DEVICE

PURPOSE: To enable traverse drawing without unlocking a net-like body regardless of rigidity by providing a pair of pulleys, a pair of belts for holding the lateral ends of said body between the pulleys to carry the body in outwardly extending manner, and projections for locking the lateral ends of the body. CONSTITUTION: Both ends of a net 2 introduced are held between endless drawing belts 10a, 10b and drawing pulleys 5a, 5b at a point (b). While being heated in a solution 3 such as hot water of about 100°C, the net 2 is transferred along the outer peripheries of the pulleys 5a, 5b in laterally outwardly extended manner, so that the net is extended in a lateral direction up to 6-10 times its width and released at a point C of the end of rail, wherein the net 2 locked at the point (b) is positioned in a manner as shown by a numeral 21 until it reaches a point (d) and tensioned as shown by an arrow A to be drawn. COPYRIGHT: (C)1992,JPO&Japio ...

MOLD APPARATUS FOR MOLDING RETICULATED BODY

PROBLEM TO BE SOLVED: To prevent the generation of a short shot and the formation of a weld line in a molding. SOLUTION: An apparatus has a fixed mold 31, a movable mold 34 which forms a cavity space 41 equipped with a mesh part 11 and a fringe part 13 between it and the fixed mold 31, pins which are arranged to face spots of the fringe part 13 and to be able to move forward and backward freely, and a controller. The controller is equipped with a resin flow controlling means which in an injection process, moves the pins forward at a set time before a resin reaches the fringe part 13 to cut off the resin flow in the fringe part 13 and moves the pins backward at another set time. Before the injected resin, which entered a mesh part 11, reaches the fringe part 13, the pins are moved forward to cut off the resin flow in the fringe part 13 so that the resin which reached the fringe part 13 flows in the fringe part 13, preventing the resin from entering the mesh part 11 again from another part ...

Экструзионная головка для изготовления сетеподобных изделий из полимерных материалов

Изобретение относится к области переработки полимерных материалов. Цель изобретения - расширение технологических возможностей головки за счет получения сетеподобных изделий с ячейками любой величины н формы . Экструэионная головка содержит корпус с подводящим каналом. В корпусе размещены с возможностью относительного перемещения фильеры. Головка снабжена приводом колебательного попарно-встречного перемещения фильер. Фильеры выполнены в виде отделыа1Х насадок, снабженных сменными наконечниками . Фильеры смонтированы в корпусе с помоирью шарниров. При работе расплав полимера по подводящему каналу подается в фильеры и выходит в виде нитей из наконечников, В связи с тем, что фильеры совершают колеба-. тельные перемещения навстречу друг другу, нити, выходящие из наконечников , свариваются и образуются узлы сети. Регулируя угловую скорость колебаний фильер, можно получать любые размеры сетеподобных изделий. 3 ил. с ...

Ленточный пресс для изготовления листовых полимерных материалов

Изобретение относится к оборудованию для прессования непрерывного листового полимерного материала. Целью изобретения является расширение технологических возможностей. Для этого в ленточном прессе расположенные по периферии зоны прессования уплотнительные элементы 13, 14 охлаждаются за счет подвода охлаждающей жидкости через два канала двух обогреваемых нажимных плит, каждая из которых имеет вкладыш 19, плавающий на жидкости под давлением и установленный относительно нее с зазором 21, а также контактирующих теплопроводных элементов 32. Дополнительный нагрев лент 5 осуществляют контактирующими с ней установленными во вкладыше 19 теплопроводными элементами 29. Такая конструкция позволяет поддерживать пониженную по сравнению с температурой формования температуру зоны уплотнения камеры давления 12. 5 з.п. ф-лы, 7 ил.

Устройство для производства решетчатых конструкций

PRODUCING NETS OF PLASTIC MATERIAL

Molecularly orientating plastics material

An integral plastics material starting sheet has a square or rectangular pattern of holes defining strand-forming zones. The strand-forming zones are formed with depressions with the sheet at a low or ambient temperature. The sheet is then stretched to form the strand-forming into orientated strands.

MOLECULARLY ORIENTATING PLASTICS MATERIAL

PROCEDURE FOR THE PRODUCTION OF A BUILDING OF LATTICES AS WELL AS A BUILDING OF LATTICES.

Mesh

Es wird ein Maschennetz mit einer Maschen (3) bildenden Lage zwischen parallelen, einander paarweise gegenüberliegenden Zugbändchen (4, 5) beschrieben, die auf der der Lage zugekehrten Seite eine thermoplastische Bindungsschicht aufweisen und über die Bindungsschicht miteinander und mit der Lage verbunden sind. Um vorteilhafte Konstruktionsbedingungen zu schaffen, wird vorgeschlagen, dass als Maschen (3) bildende Lage ein Kunststoffnetz (1) vorgesehen ist, dessen miteinander stoffschlüssig verbundene Netzstege (2) verstreckt sind und rautenförmige Maschen (3) bilden, deren Längsdiagonale quer zu den Zugbändchen (4, 5) verlaufen.

Procedure for the production one kontinuerlich sequential net strip and device for the execution of the procedure

GEOGRIDS

Plastics material mesh structures

MULTIPLE-LAYER REINFORCED LAMINATE INCLUDING A NETWORK OF COMPOSITE THERMOPLASTIC STRANDS

Laminated sheet product reinforced with composite heat-sealable, plastic strands in process for preparation thereof. The composite strands include inner core polymer of relatively high strength and an outer adhesive polymer. The strands are co-extruded in the form of a net-like structure which may be heat-sealed within outer covering material.

DEVICE FOR PRODUCING A GRATE CONSTRUCTION AND A GRATE CONSTRUCTION

This invention relates to a device for the production of grate constructions. In general, such constructions are manufactured manually by connecting transverse ribs to elongated supporting means by welding. Grate constructions can be manufactured automatically at a single step by means of an extruder known from pipe manufacturing techniques. Chill moulds (1, 2) moving in the production direction are thereby modified in such a manner that the chill moulds comprise at least two moulding spaces (14) communicating with each other by means of conduits (16).

Filter screen production mold capable of automatically cutting excess material

Ultra-high molecular weight polyethylene mesh coating shaping production device

Double-layer composite plastic grid forming machine head

PROCESS AND DEVICE FOR THE REALIZATION OF FILMS HAVE OPENWORK WALLS

PROCESS AND DEVICE FOR THE REALIZATION OF FILMS HAVE OPENWORK WALLS

LAMINATE MULTI-LAYER WEAPON

INJECTION MOLDING APPARATUS AND MOLDED ARTICLE OBTAINED BY THE SAME

PROCESS FOR PRODUCING SHAPED CONTACT-FILTRATION MEMBER, SHAPED CONTACT-FILTRATION MEMBER, FILTRATION APPARATUS, AND METHOD OF PROCESSING SOILED WATER

APPARATUS AND METHOD FOR MANUFACTURING MESH-LIKE POLYMERIC STRUCTURES

A method and apparatus for manufacturing a combined polymeric structure are disclosed. The apparatus includes an extruder body (110), a die (120) configured to receive flowing polymeric material from the extruder body (110) and a motion unit. The die includes a hollow inner die (122), a protecting sleeve (124) located within the inner die (122) and an outer die (125) located at an exit (128) end of the hollow inner die (122). The motion unit is configured to cause bidirectional translational motion of the hollow inner die (122) relative to the outer die (125).

DEVICE FOR TRANSVERSELY EXTENDING A BELT-LIKE BODY

HOT AIR CIRCULATING TYPE DRAWING MACHINE

PURPOSE: To stabilize the quality by heating to a uniform temp. improve the thermal efficiency by applying a jet of hot air to a stretchable strip-like body and producing its circulation. CONSTITUTION: When the drawing width or factor of a stretchable strip-like body F to be drawn is set by operating drawing factor adjusting mechanism 4 to regulate the distance or opening angle between support plates 3, the movable plates 7b of a hot air guide plate 7 are automatically actuated responsively to the distance and the opening angle between these support plates 3 into contact with the inner surface of drawing pulleys 3a. In a case where the stretchable strip-like body F is composed of the film having little or no air permeability, when a jet of hot air is directed against a nearly central part of the film drawing zone by a hot air blower 5, this hot air is allowed to flow along the film surface to the entrance side 1 of the film and the exit side 0 thereof to heat the film entirely to a uniform ...

MOLECULAR ORIENTATION OF PLASTIC MATERIAL.

Mesh

Es wird ein Maschennetz mit einer Maschen (3) bildenden Lage zwischen parallelen, einander paarweise gegenüberliegenden Zugbändchen (4, 5) beschrieben, die auf der der Lage zugekehrten Seite eine thermoplastische Bindungsschicht aufweisen und über die Bindungsschicht miteinander und mit der Lage verbunden sind. Um vorteilhafte Konstruktionsbedingungen zu schaffen, wird vorgeschlagen, dass als Maschen (3) bildende Lage ein Kunststoffnetz (1) vorgesehen ist, dessen miteinander stoffschlüssig verbundene Netzstege (2) verstreckt sind und rautenförmige Maschen (3) bilden, deren Längsdiagonale quer zu den Zugbändchen (4, 5) verlaufen.

EXTRUDED ARTICLE AND METHOD OF MAKING SAME

PROCESS FOR PRODUCING NETS OF PLASTIC MATERIAL AND APPARATUSES FOR CARRYING OUT SAID PROCESS

The process consists of extruding the strands making up the net, through a plurality of nozzles set along a pair of counter-rotating anular crowns. A tubular net is thus obtained, the meshes of which have, with respect to the axis, an inclination that can vary in function of the speed of the counter-rotating crowns. Cutting this tube with an opportune inclination a continuous strip of net is obtained. The invention relates also to the apparatuses for carrying out said process.

Head is extruded to plastic net cover

Reticular photographic film production equipment

Continuous processing production equipment for composite geotextile drainage net

Automatic production equipment for fiber reinforced plastic gratings

METHOD AND EQUIPMENT FOR CONTINOUSLY MAKING STRIP MATERIALS UNDER HIGH TEMP.

... 本发明涉及一种用双带压力机连续压制料带的方法，这种料带为了完全硬化需要较高的温度，为此，将双带压力机的加压板分成一个边缘区和一个内区。边缘区具有密封装置材料可承受的温度，而内区则加热到较高的温度。借助导热元件将热量从内区传递到对着该区的加压带部分。实施此方法的设备中，构成此边缘区的加压板上有一矩形槽，在槽中设有一块构成内区的加压板嵌件。加压板嵌件被加热，并装有导热元件，将热量传到加压带上。 ...

PROCESS OF PRODUCTION Of a NET AND NET OBTAINED

PLASTIC TULLE AND ITS MANUFACTORING PROCESS

PROCEDE DE PRODUCTION D'UN FILET ET FILET OBTENU

La présente invention concerne la production d'un filet comportant un double réseau de gros brins 10 formant un filet à grandes mailles et de petits brins 12 formant un filet à petites mailles par étirage d'un film en polymère synthétique profilé. Le film en polymère présente un profilage principal formé par un réseau de surfaces plus épaisses et plus minces qui peut erre étiré de manière à déchirer les surfaces les plus minces et former une structure du type filet, les surfaces les plus minces du film étant elles-mêmes munies d'un second profilage formé d'un réseau de surfaces plus épaisses et plus minces, avec une échelle plus petite que celui du profilage principal. L'invention est applicable à la fabrication des filets du type en cause pour allier la solidité des filets à grandes mailles au pouvoir de rétention des filets à petites mailles.

Lacrosse head pocket and related method of manufacture

A lacrosse head pocket and a related method of manufacture are provided to facilitate consistent, repeatable and/or custom manufacture of lacrosse equipment. The pocket can be constructed from multiple different sections joined with one another, or can be knitted, weaved or otherwise assembled on an automated assembly machine from strands, and/or can be formed as a unitary textile material having regions/sections with different physical and/or mechanical properties. The pocket can be integrally molded within portions of a lacrosse head to eliminate manually constructed connections between the pocket and lacrosse head. The lacrosse head can be integrally molded with a lacrosse handle to provide a one-piece unitary lacrosse stick. Related methods of manufacturing also are provided.

Lacrosse head pocket and related method of manufacture

A lacrosse head pocket and a related method of manufacture are provided to facilitate consistent, repeatable and/or custom manufacture of lacrosse equipment. The pocket can be constructed from multiple different sections joined with one another, or can be knitted, weaved or otherwise assembled on an automated assembly machine from strands, and/or can be formed as a unitary textile material having regions/sections with different physical and/or mechanical properties. The pocket can be integrally molded within portions of a lacrosse head to eliminate manually constructed connections between the pocket and lacrosse head. The lacrosse head can be integrally molded with a lacrosse handle to provide a one-piece unitary lacrosse stick. Related methods of manufacturing also are provided.

MOLDING METHOD OF FOAMED FIBRILLATED MATERIAL

PURPOSE: To mold at high productivity a foamed fibrillated material which is superior in a degree of fibrillation and feeling, by a method wherein a composite constituted of a thermoplastic resin foaming agent and filling material is melted and extruded through a slit nozzle and the same is taken off directly after extrusion while the same is being air-cooled. CONSTITUTION: A composite constituted of 100wt part thermoplastic resin, a 0.2W3wt part foaming agent and a 2W40wt part filling agent is melted and extruded through a slit nozzle 2 by an extruding machine 1. A molten extruded material 3 is air-cooled through an air ring 4. In cooperation with thinning of a molten extruded material based on take-off, a bubble is burst and made into the starting point 5 of fibrillation while it is being expanded and extended and the molten extruded material 3 is molded into a netted foamed fabrillated material 6. With this molding method, as compared with an extent of the maximum take-off speed m/min ...

СЕТЧАТАЯ ОБОЛОЧКА

Изобретение может быть использовано для предохранения хрупких трубопроводов при их транспортировании и монтаже, для удержания теплоизоляционного материала на трубопроводах. Сетчатая оболочка выполнена в виде тела вращения из полимерных материалов и образована слоем пересекающихся полимерных волокон цилиндрической формы. Полимерные волокна расположены одним слоем и имеют форму взаимно пересекающихся в вершинах и впадинах синусоид со средними линиями, параллельными центральной оси сетчатой оболочки. Оболочка надежна в работе, многофункциональна и может быть использована в различных отраслях промышленности. 1 ил.

Устройство для изготовления плоских сеток из термопластов

Изобретение относится к оборудованию для изготовления плоских сеток из термопластов экструзией. Оно может найти применение в сельском хозяйстве, химической промышленности, дорожном строительстве. Цель изобретения - повышение качества плоской сетки путем предотвращения образования продольных и поперечных спаев и устранения прогиба валка в зоне образования сетки. Устройство содержит валок с приводом вращения, неподвижный элемент и питатель для подачи термопласта. Рабочая поверхность неподвижного элемента выполнена вогнутой, охватывающей наружную поверхность валка с продольными и поперечными кольцевыми проточками, которая разделена на три равных по длине участка (центральный участок цилиндрический и два концевые конические с образующими в виде прямой при максимальном прогибе неподвижного элемента). Питатель выполнен в виде камеры с поперечным сечением в форме неправильного пятиугольника. Нижняя сторона камеры образует с касательной к поверхности валка угол в пределах от 45 до 60°. Расплав ...

EXTRUDER UND SEINE VERWENDUNG

VORRICHTUNG ZUR HERSTELLUNG EINES KONTINUIERLICH FORTLAUFENDEN NETZSTREIFENS

PRODUCTION OF NET

Multiple-layer reinforced laminate

Laminated sheet product (60,62) is reinforced with composite heat sealable plastic strands (64) comprising an inner core of a first polymer and an outer adhesive layer. ...

MULTIPLE-LAYER REINFORCED LAMINATE

PLASTIC NET

Method of producing film with through-holes

A film 2 made of an elastic material is stretched in at least one direction parallel to a surface of the film and then through-holes 25 are punched in the film in the state where the film is stretched. After the punching is completed, the stretching is terminated, so that the film recovers its original shape. Preferably the through-holes are formed using needles 115. The film may be used in an ink transfer printer (Fig 4).

APPARATUS AND A METHOD FOR MANUFACTURING A PERFORATE SYNTHETIC RESIN FLOOR MAT.

PURPOSE:To constitute a network structure mat molding being in contact with each other at a constant distance by limiting such that each nozzle being disposed in a rank on the T-die of an extrusion molding machine is swingable with respect to the extrusion face of a molding material, and the swinging face to an adjacent nozzle conducts a counter periodical motion. CONSTITUTION:Each nozzle 1a, 1b...1n being disposed in a rank (about 54-90pieces) to the main body of a T-die is constituted to be swingable with respect to their molding extrusion faces, and limited such that the swinging faces of the nozzle 1a, 1b...1n adjacent to each other are in opposite directions. Herein, each streak-shaped molding extruded from each nozzle winds such as waves, and forms a continuous length molding in succession. And, by accelerating the transporting speed of a conveyor transporting a network molding with respect to the extruding speed of streak-shaped moldings, there may arise the tensile operational force ...

A DEVICE FOR PRODUCING A GRATE CONSTRUCTION AND A GRATE CONSTRUCTION

Mold for producing high-frequency fine vibrating screen cloth and forming method of mold

Injection molding device

Mould of head is extruded to plastic net cover

EXTRUSION OF PLASTIC NETTING

APPARATUS AND METHOD FOR MANUFACTURING RETICULAR BODIES MADE OF COMPOSITE MATERIAL

Herein described are an apparatus and a process for manufacturing grids made of reinforced synthetic resin wherein a continuous conveyor having a forming side enables to continuously deposit a reinforcement fibre and resin as well as forming reticular- structured continuous bodies.

Methods of making films comprising an array of openings

Polymeric layer having first and second, generally opposed major surfaces, comprising an array of openings extending between the first and second major surfaces. The polymeric layers are useful, for example, as components in personal care garments such as diapers and feminine hygiene products. They can also be useful for filtering (including liquid filtering) and acoustic applications.

PREPARATION OF NET SHEET

PURPOSE: To improve the scraping properties and gelling speed of a net sheet by filling the intaglio having a graved net pattern with the paste containing a specified rate of metallic powder mixed with synthetic resin, and heating, gelling and taking this mixed paste out of the intaglio. CONSTITUTION: The intaglio having a graved net pattern is filled with paste in which 100pts.wt. of synthetic resin are mixed with 200W1,400pts.wt. of metallic powder and the residual paste is scraped off by a doctor blade. Then, the heated, gelled paste is taken out of the intaglio to obtain the desired net sheet. In this manner, the scraping properties and the gelling speed of the net sheet are improved to prepare a flexible net sheet remarkably efficiently. This net sheet is used for shielding electromagnetic wave. COPYRIGHT: (C)1985,JPO&Japio ...

Устройство для экструзии рукавных полимерных сеток

Изобретение относится к оборудованию для переработки пластмасс, в частности к устройствам для экструзии рукавных полимерных сеток. Цель изобретения - упрощение конструкции устройства и повышение его эксплуатационных качеств. Устройство содержит две кольцевые фильеры с формующими отверстиями. Фильеры концентрично смонтированы на общей неподвижной оси с возможностью разнонаправленного вращения. Неподвижная ось и внутренняя фильера выполнены с опорными буртиками для крепления соответственно внутренней и наружной фильер. На наружной фильере закреплена приводная звездочка. Между торцовыми поверхностями фильер установлен упорный подшипник. Сепаратор подшипника закреплен неподвижно. Выполнение привода для разнонаправленного вращения фильер позволяет упростить конструкцию устройства и повысить его эксплуатационные качества, так как подшипник выполняет не опорную, а кинематическую функцию. Он передает вращение, одновременно реверсируя его. 3 ил.

Plastics material mesh structures

Plastic net composed of co-extruded composite strands

An improved plastic net product and its method of manufacture. Intersecting strands of plastic are extruded to form a net structure. Each strand is comprised of a plastic core of a first polymer sandwiched between layers of another polymer, all of which are co-extruded.

A plastic net extension die, with heating means

The strands making up the net are extruded as a tubular net from between a pair of counter-rotating annular dies, and the net tube is taken from the dies around a tubular mandrel immersed in cooling fluid, on which it is cut along a helical path to be continuously removed as a net strip. According to the invention, temperature irregularities within the die are avoided, by heating it by an annular heater (8) e.g. a resistance heater, disposed around the outer die at a clearance e.g. of a few tenths of a millimetre. ...

Extrusion method, extruder and product produced thereby

GEOGRIDS

A starting material is stretched longitudinally to produce a geogrid. The starting material has pronounced ribs on each face, merging into sloping sides. Between the ribs, there are holes on a square grid. The mean thickness of the longitudinal elements is substantially greater than the mean thickness of the interconnecting elements, and the cross-sectional area of the longitudinal elements is at least 2.5 times the transverse cross-sectional area of the interconnecting elements. The longitudinal elements are stretched out into continuous oriented strands. The centres of the junctions reduce in thickness by at least 10% but substantially less than the percentage reduction at the thinnest parts of the strands.

Mould structure of product grid drawing of patterns

Filter screen production equipment for mobile air conditioner

PROCESS OF PRODUCTION OF FILM COMPRISING OF THE CROSSING HOLES

Film (2) fait d'une matière élastique. Le film (2) est étiré dans au moins une direction (Y) parallèlement à une face du film (2). Puis, l'on perfore des trous traversants (25) dans le film au moyen d'aiguilles (115), dans un état où le film (2) est étiré. Après la fin de la perforation, on met fin à l'étirement, de façon que le film (2) reprenne sa forme d'origine.

DISPOSITIF DE FABRICATION D'UNE PLAQUE ALVEOLAIRE, PLAQUE ALVEOLAIRE EN RESULTANT

DISPOSITIF DE FABRICATION D'UNE PLAQUE ALVEOLAIRE. PLAQUE ALVEOLAIRE. LE DISPOSITIF SELON L'INVENTION EST CONSTITUE PAR UNE FILIERE D'EXTRUSION 1 DONT L'OUVERTURE 2 EST UNE SECTION SANS SOLUTION DE CONTINUITE FORMANT UNE FRISE DE SEGMENTS RECTILIGNES OU CURVILIGNES CONCOURANTS ET PAR UN MASQUE 3 ANIME D'UN MOUVEMENT ALTERNATIF DE COULISSEMENT DEVANT LA FILIERE 1 ET QUI COMPORTE UNE FENETRE NE DECOUVRANT QU'UNE PARTIE DE LA SECTION 2 VARIABLE AVEC LE MOUVEMENT DU MASQUE.

Lacrosse head pocket and related method of manufacture

A lacrosse head pocket and a related method of manufacture are provided to facilitate consistent, repeatable and/or custom manufacture of lacrosse equipment. The pocket can be constructed from multiple different sections joined with one another, or can be knitted, weaved or otherwise assembled on an automated assembly machine from strands, and/or can be formed as a unitary textile material having regions/sections with different physical and/or mechanical properties. The pocket can be integrally molded within portions of a lacrosse head to eliminate manually constructed connections between the pocket and lacrosse head. The lacrosse head can be integrally molded with a lacrosse handle to provide a one-piece unitary lacrosse stick. Related methods of manufacturing also are provided.

METHOD AND APPARATUS FOR MANUFACTURING PLATE MESH BODY

PURPOSE: To provide a method and apparatus for manufacturing a plate mesh body capable of being easily manufactured and greatly reduced in manufacturing costs, in particular, being preferably used in a specious area and simply varied in weight, thickness and so forth per unit area of the plate mesh body to be manufactured, and further corresponding to wide use. CONSTITUTION: The apparatus is such that it includes an extruder 2, a pair of form rollers 4, 4 placed proximate to the forward of a die 3 of the extruder 2, and a punching out machine 7 in this order, and on the peripheral surfaces of respective rollers 4, 4, the same configured projections are formed in an equally distanced manner so as to allow the projections of two form rollers 4, 4 to be confronted each other and thus the confronted projections are permitted to be approached one another as close as possible, and respective rollers 4, 4 are rotated in the forwardly delivering direction and can be controlled in its rotating speed ...

FOAMED NET

PROBLEM TO BE SOLVED: To provide a foamed net with improved cushioning characteristics without performing a troublesome task of folding it double. SOLUTION: The mesh-like foamed net comprises a plurality of foamed strands s1 and s2 which are intersected with each other and the strands s1 and s2 are welded at their intersection k. The foamed strands s1 and s2 have oval cross-sectional shapes different in aspect ratio, and the strands s1 and s2 are welded in such a state that a longitudinal direction as the cross-sectional shape is orthogonal or approximately orthogonal to a mesh-like net plane 2. COPYRIGHT: (C)2002,JPO ...

CONTINUOUS MANUFACTURE OF SYNTHETIC RESIN FLAT NET

PURPOSE: To obtain a flat net made up of threads that are extended longitudinally and laterally so that they are intersected at right angles, by controlling the extruding speed and the rotational speeds of an inner mold and an outer mold, and intersecting the synthetic threads extruded from the molds at right angles to form a cylindrical net. CONSTITUTION: A melted thermoplastic resin is extruded from an extruder (a) into a mouthpiece (b). The flow direction of the extruded resin is changed by 90° in the mouthpiece (b) and the resin is flowed circumferentially shown at 7 and is extruded from small holes 8 in the inner mold 3 and small holes 9 in the outer mold 4. At that time, the inner mold 3 and the outer mold 4 are rotated in opposite directions, their circumferential speeds around the circumference 7 are made substantially equal and the extrusion speed of the resin is made equal to the circumferential speed. Accordingly, the resin threads extruded from the small holes 8 and the resin ...

DEVICE FOR TRANSVERSE EXTENSION OF RETIFORM MATERIALS AND IN PARTICULAR FIBRILLAR POLYMERIC FILM

... of the disclosure Within the scope of a process of known type consisting of sending said retiform materials to transverse extension (opening) devices having elements for grasping the product, e.g. pincers, which run on opening elements, e.g. divergent guides, and are towed by translation elements, e.g. chains, the device in accordance with the present invention makes it possible to reduce in a controlled manner the distance between the product grasping elements during the opening phase and subsequently maintain said reduced distance in such a manner that the translation speed of the material drawn by the grasping elements can diminish progressively to compensate for the longitudinal retraction due to the transverse extension.

POLYMERIC INTEGRAL NET

The present invention provides an integral net having a lattice of polymeric material defined by holes traversing the integral net from one surface to the other. The present invention also provides a method for producing an embossed sheet of polymeric material by first contacting a billet of polymeric material with an embossing tool having a plurality of protrusions whereby the embossing tool impresses indentations into the billet to a given depth. Subsequently, the method involves skiving the embossed billet. By this method, an embossed sheet of the polymeric material is removed from the billet, which embossed sheet can be an integral net.