WO2004039570A1 - Machine for the production of tubular bodies - Google Patents
Machine for the production of tubular bodies Download PDFInfo
- Publication number
- WO2004039570A1 WO2004039570A1 PCT/ES2003/000560 ES0300560W WO2004039570A1 WO 2004039570 A1 WO2004039570 A1 WO 2004039570A1 ES 0300560 W ES0300560 W ES 0300560W WO 2004039570 A1 WO2004039570 A1 WO 2004039570A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bands
- mandrel
- machine
- manufacture
- tubular bodies
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31C3/00—Making tubes or pipes by feeding obliquely to the winding mandrel centre line
Definitions
- the present invention relates to a machine that has been specially designed for the manufacture of tubular bodies, specifically cylindrical bodies, usable as packages of different types of products, in granular, powdery or pasty form, as well as usable as formwork elements , in the field of construction, to obtain cylindrical columns.
- the machine uses as a raw material, several sheets or continuous bands, which combine raw materials or base of vegetable and / or synthetic fibers, combined with melting polymers, grouping them into a single complex or band that, helically wound and heat welded, gives rise to the body Tubular and cylindrical pursued.
- the invention also presents the quality of incorporating heating means of the bands, necessary for a softening of the plastic material, which participates in such bands, and the consequent fusion or heat welding between them to configure the desired tubular body.
- the invention consequently contemplates the quality of obtaining a drastic dimensional reduction in the machine or installation, with the consequences that this brings with it from the point of view of use of the cabin in which said machine is established.
- tubular containers encompasses both any type of container itself. said obtained based on this type of material, such as the tubular and cylindrical bodies used as formwork to obtain columns, also cylindrical, or any other practical assumption, in which a body of these characteristics is required.
- the machine for the manufacture of tubular bodies that the invention proposes has been specially designed to obtain cylindrical tubular bodies, using the method of the said Invention Patent, specifically using raw materials based on vegetable and / or synthetic fibers combined with melting polymers , configuring a band or complex, which can also incorporate an aluminum foil within it.
- the invention also contemplates the fact that in order to achieve a substantially greater use of the space, a plurality of heat sources, specifically one for each band to be heated, is disposed in the immediate vicinity of a mandrel and in the situation of said tunnel, so that keeping the bands properly spaced by an adequate guidance of them, despite their confluence on the mandrel, in the vicinity of it, leave enough space for the location between them of the heat sources.
- the machine for the manufacture of tubular bodies object of the invention is structured from a fixed cylindrical mandrel, that is, immobilized, both rotationally and axially, of diameter according to the diameter of the tubular body to be obtained, hollow and provided with cooling means, whose purpose will be described later.
- Said mandrel is intended to receive simultaneously in oblique arrangement and longitudinally offset, to a plurality of bands that partially overlap thereon, bands supplied from respective coils independently mounted in a rewinder and that access the mandrel, after passing through a heating tunnel , assisted by a hot air generator, which attacks said tunnel laterally and obliquely in the initial zone of the tunnel and causes adequate heating of the bands, so that the plastic material that participates in them, softens and adopts conditions of thermal adhesion in the superposition between layers, the definitive adhesion taking place practically immediately, thanks to the cooling system of which the mandrel is provided.
- the traction on the bands is produced by a dragging device, based on a flat belt that acts on the entire periphery of the mandrel, with interposition of the band bundle adapted to the latter, causing a drag of the bands, with simultaneous sliding of the same on the mandrel, which by the inclination of said bands, gives rise to the helical winding thereof on the mandrel, with simultaneous longitudinal displacement along the same, of the tube that is obtained.
- the mandrel is cantilevered mounted on a support structure from its end corresponding to the entrance of the bands, so that the tubular body obtained comes out freely through the other end of the mandrel, where a cutting device will fragment it into sections of predetermined length.
- the non-adhesion of the plastic material that participates in the bands, generally polymeric, to the mandrel, is ensured by the cooling of said mandrels, and in order to facilitate the sliding of the bands on the mandrel, the contribution thereto is provided, in the zone of reception of the bands, of a softening liquid, which acts as a lubricant between the surface of the bands and the surface of the mandrel.
- the non-adhesion of the constituent material of the tubular body to the mandrel can be achieved by other means, specifically the following:
- a silicone auxiliary band that constitutes the support and sliding means on the mandrel.
- the bands are supplied independently from a feed unwinder, in which each coil is mounted on its own axis, with independent rotation of the others, so that keeping its linear displacement substantially uniform, they can have different angular speeds, depending on the different diameters of the coils used, each coil also being assisted by an auxiliary coil that allows the machine's power to be replenished substantially quickly when the first coil is consumed.
- each of the mentioned heat sources can be materialized in a nozzle for high temperature air pressure blowing, being configured as an elongated nozzle corresponding to the width of the band and arranged transversely with respect to the latter, in which case, the air pressure circuit may incorporate a coil housed inside a boiler, where the heating of the air occurs, up to temperatures that can reach 300 degrees C, so that the blowing of pressurized air on the continuous bands, causes their instantaneous heating to the working temperature considered as ideal.
- the aforementioned pressurized hot air nozzles can be replaced by burners located directly in the vicinity of the continuous, gas or infrared bands.
- Figure number 1. Shows a schematic plan representation of the machine for the manufacture of tubular bodies that constitutes the object of the present invention, as a whole, relative to a machine for the manufacture of tubular bodies.
- Figure number 2. Shows a detail in perspective of the unwinder.
- Figure number 3. Shows, also according to a perspective view, a partial detail of the heating tunnel, observing in it the access of the bands to the interior thereof.
- Figure number 4.- Shows another perspective view of the heating tunnel, on its side opposite to that shown in figure number 3.
- Figure number 5. Shows in partial and upper perspective of the end of the mandrel, through which the different bands access it and on which the dragging device acts.
- Figure number 6. Corresponds to a lateral perspective of the same area of the mandrel, in which the partial overlap between bands is observed.
- Figure number 7. Represents a detail in perspective of said band dragging device.
- Figure number 8.- Reflects a schematic plan representation of a machine for manufacturing tubular bodies made in accordance with this embodiment.
- Figure number 9. Represents a detail in perspective of the area of the machine shown in figure number 8, on which the characteristics of the second embodiment of the invention are located.
- Figure number 10.- Finally corresponds to a schematic representation in side elevation of the assembly represented in figure number 9.
- a rewinder (1) represented in detail in figure number 2, participates in which on a support frame (2), a plurality of axes (3) are established, independent of each other, intended to receive respective coils (4) that supply continuous bands (5) of the plasticized paper, each main reel (4) counting with at least one auxiliary coil (6) intended to remain in reserve to eliminate the dead time of the machine when the main coil (4) runs out, at which point the terminal end of the band (5) is fixed, for example, by means of a two-sided adhesive (7), the initial end of the complementary coil (6).
- the different bands (5) are conveniently guided by rollers (8) or by any other means towards a heating tunnel
- Said heating tunnel (9) is provided with interior separators (11), which keep the bands (5) duly independent, being assisted by a hot air generator (12) that attacks said tunnel (9) laterally and obliquely and which in collaboration with a fan (13), supplies air at the initial tunnel zone (9) at a temperature between 160 ° C and 200 ° C, so at the exit of the tunnel (9), a temperature in turn between 140 ° C and 190 ° C is maintained , suitable for the plastic material, specifically the polyethylene, which participates in the bands (5), is in a thermal condition to adhere to both another layer of polyethylene and any other layer of the complex.
- the bands (5) After leaving the tunnel (9), the bands (5) reach obliquely to the mandrel (10), being offset in the axial direction of the mandrel (10), as specifically observed in figure number 6, but mostly superimposed, being located in this initial end of the mandrel (10), a drag device materialized in a flat belt (14), which acting externally on the bands (5) and constituting the mandrel (10), a static element, causes said bands (5) to slide ) around the mandrel (10), with a parallel axial displacement thereof, due to its own inclination, that is, causing a helical winding of the bands on the mandrel, with parallel axial displacement thereof along said mandrel (10)
- the mandrel (10) which, as previously stated, remains static, both in a rotating and axial direction, is connected by its initial end and by means of a robust support (15), to the structure of the machine, so that its terminal end is cantilevered, to allow the free exit of the cylindrical tube (16) already formed, being located beyond said free end of the mandrel (10), a cutting mechanism, not shown, for the adequate fragmentation of the tube continued to be is getting
- the mandrel (10) is refrigerated, having for this purpose an inlet (17) and an outlet (18) of water, in order to prevent the high temperature at which the bands (5) reach said mandrel (10 ), causes them to adhere to the mandrel (10), and in addition, in this initial area of said mandrel (10), a softening liquid is applied thereto which facilitates the surface sliding of the bands (5) with respect to the repeatedly cited mandrel (10), softening liquid of an oily nature, which can be applied drop by drop or with any other type of impregnator.
- (5) on the mandrel (10), consists, as already mentioned above, in a wide flat, annular belt (14), which perimetrically hugging the mandrel (10), extends between two cylinders (19), of parallel shafts, mounted on both sides of the mandrel (10).
- These two parallel-axis cylinders (19) can be driven independently and synchronously, by means of respective motors housed in the support base thereof, or said motorization can exclusively affect one of the cylinders (19), moving the other cylinder synchronously with it, through the transmission itself generated by the flat belt (14), being able to be used in any case, mechanical or hydraulic motors.
- a stabilizer bar (21), preferably telescopic is established, that is to say, of adjustable length by means of a spindle-nut system, in which a steering wheel of drive (22), so that not only the stability in the axes of the cylinders (19) is ensured, but also the tension of the flat belt (14) can be regulated, that is, the pressure thereof on the mandrel (10).
- each main coil (34) having at least one auxiliary coil (36) destined to remain in reserve to eliminate the dead time of the machine when it occurs the depletion of the main coil. (34), at which time a two-sided adhesive is attached to the terminal end of the band (35), the initial end of the complementary coil (36).
- a nozzle (43) is established for blowing at high temperature air pressure, specifically at the temperature suitable for the plastic material, specifically polystyrene, which participates in the bands (35), is in thermal conditions, to adhere to both another polystyrene plate and any other layer of the complex, temperature that can reach 300 ° C.
- the nozzles (43) for blowing hot pressurized air can be replaced by burners located directly next to the bands (35), such as gas burners or infrared burners.
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03769512A EP1591232A1 (en) | 2002-10-30 | 2003-10-30 | Machine for the production of tubular bodies |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP200202498 | 2002-10-30 | ||
ES200202498A ES2208106B1 (en) | 2002-10-30 | 2002-10-30 | MACHINE FOR THE MANUFACTURE OF TUBULAR BODIES. |
ESP200300566 | 2003-03-07 | ||
ES200300566U ES1054817Y (en) | 2003-03-07 | 2003-03-07 | CONSTRUCTION PANEL |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004039570A1 true WO2004039570A1 (en) | 2004-05-13 |
Family
ID=32232247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2003/000560 WO2004039570A1 (en) | 2002-10-30 | 2003-10-30 | Machine for the production of tubular bodies |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2004039570A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3159515A (en) * | 1962-03-19 | 1964-12-01 | Sonoco Products Co | Method and apparatus for making composite oil containers of spirally wound strips |
US3400029A (en) * | 1965-01-22 | 1968-09-03 | Continental Can Co | Method of making spiral wound container bodies |
ES8400290A1 (en) * | 1981-09-14 | 1983-10-16 | Abzac Cartonnages | Method and apparatus for manufacturing spirally wound paper tubes, and tubes produced by such a method. |
WO1992012902A1 (en) * | 1991-01-17 | 1992-08-06 | Gonod Andre | Method for fabricating a tube by rolling a metal strip glued to a cardboard band |
WO1995010399A1 (en) * | 1993-10-08 | 1995-04-20 | Fabio Perini S.P.A. | Machine for producing tubes continuously, with independent operation of the cutting unit |
WO1997013695A1 (en) * | 1995-10-11 | 1997-04-17 | Ingmar Andreasson | Method and device for production of tubes |
EP0857567A2 (en) * | 1997-02-06 | 1998-08-12 | Sonoco Products Company | Polymeric liner ply for tubular containers and methods and apparatus for manufacturing same |
-
2003
- 2003-10-30 WO PCT/ES2003/000560 patent/WO2004039570A1/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3159515A (en) * | 1962-03-19 | 1964-12-01 | Sonoco Products Co | Method and apparatus for making composite oil containers of spirally wound strips |
US3400029A (en) * | 1965-01-22 | 1968-09-03 | Continental Can Co | Method of making spiral wound container bodies |
ES8400290A1 (en) * | 1981-09-14 | 1983-10-16 | Abzac Cartonnages | Method and apparatus for manufacturing spirally wound paper tubes, and tubes produced by such a method. |
WO1992012902A1 (en) * | 1991-01-17 | 1992-08-06 | Gonod Andre | Method for fabricating a tube by rolling a metal strip glued to a cardboard band |
WO1995010399A1 (en) * | 1993-10-08 | 1995-04-20 | Fabio Perini S.P.A. | Machine for producing tubes continuously, with independent operation of the cutting unit |
WO1997013695A1 (en) * | 1995-10-11 | 1997-04-17 | Ingmar Andreasson | Method and device for production of tubes |
EP0857567A2 (en) * | 1997-02-06 | 1998-08-12 | Sonoco Products Company | Polymeric liner ply for tubular containers and methods and apparatus for manufacturing same |
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