ES2279331T3 - SOUL FOR ROLLS OF LAMINARY MATERIAL. - Google Patents
SOUL FOR ROLLS OF LAMINARY MATERIAL. Download PDFInfo
- Publication number
- ES2279331T3 ES2279331T3 ES04425350T ES04425350T ES2279331T3 ES 2279331 T3 ES2279331 T3 ES 2279331T3 ES 04425350 T ES04425350 T ES 04425350T ES 04425350 T ES04425350 T ES 04425350T ES 2279331 T3 ES2279331 T3 ES 2279331T3
- Authority
- ES
- Spain
- Prior art keywords
- soul
- ribs
- corrugated
- diameter
- internal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 title claims abstract description 23
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 3
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 239000003000 extruded plastic Substances 0.000 claims 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/67—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material
- B65D85/671—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form
- B65D85/672—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form on cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/51—Cores or reels characterised by the material
- B65H2701/512—Cores or reels characterised by the material moulded
- B65H2701/5122—Plastics
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Alma (1) para rollos de material laminar con una pared lateral corrugada (2), caracterizada por el hecho de que dicha pared lateral corrugada (2) posee numerosas nervaduras anulares (3), que sobresalen radialmente hacia fuera, intercaladas con numerosas nervaduras anulares (4), que sobresalen hacia dentro.Soul (1) for rolls of sheet material with a corrugated side wall (2), characterized by the fact that said corrugated side wall (2) has numerous annular ribs (3), projecting radially outward, interspersed with numerous annular ribs (4), protruding inwards.
Description
Alma para rollos de material laminar.Soul for rolls of sheet material.
La presente invención se refiere a un alma para rollos de material laminar, concebida principalmente para filmes extensibles destinados al embalaje, como filmes de LLDPE (polietileno lineal de baja densidad).The present invention relates to a soul for rolls of sheet material, designed primarily for films Extensible for packaging, such as LLDPE films (linear low density polyethylene).
En la actualidad, generalmente los rollos de material laminar se bobinan en almas tubulares de cartón o plástico, principalmente de PVC (cloruro de polivinilo).At present, generally the rolls of sheet material is wound in cardboard or plastic tubular souls, mainly PVC (polyvinyl chloride).
Las almas realizadas con esta técnica presentan algunos inconvenientes.Souls made with this technique present Some inconvenients.
En efecto, para soportar adecuadamente el rollo, estas almas tienen un espesor elevado, con el resultado de un excesivo desperdicio de material, peso elevado y, en consecuencia, problemas de transporte.Indeed, to properly support the roll, these souls have a high thickness, with the result of a excessive waste of material, high weight and, consequently, transportation problems.
Las almas de PVC, además de ser muy costosas, presentan el inconveniente de no ser compatibles con algunos materiales que pueden componer el rollo (por ejemplo, el polietileno), comportando así notorias problemas de reciclaje.PVC souls, besides being very expensive, They have the disadvantage of not being compatible with some materials that can make up the roll (for example, the polyethylene), thus leading to noticeable recycling problems.
También las almas de cartón presentan problemas de reciclaje a causa del elevado contenido de silicatos. Además, las almas de cartón no pueden ser utilizadas en ambientes abiertos, ya que sufren un rápido deterioro a causa de la humedad.Also cardboard souls present problems Recycling because of the high silicate content. Further, cardboard souls cannot be used in open environments, since they suffer rapid deterioration due to moisture.
Por otra parte, las almas realizadas con la técnica conocida frecuentemente requieren manguitos adicionales de plástico, que se colocan en las extremidades para permitir la sujeción por parte del usuario, evitando que éste se queme las manos a causa del rozamiento con la superficie lisa del alma. Naturalmente, estos manguitos implican un coste adicional.On the other hand, the souls made with the known technique often require additional sleeves of plastic, which are placed on the extremities to allow clamping by the user, preventing the user from burning the hands because of friction with the smooth surface of the soul. Naturally, these sleeves imply an additional cost.
Las patentes
US-A-3 856 229 y
DE-U-8713881 se refieren a almas
para rollos con una pared lateral corrugada que comprende numerosas
nervaduras anulares orientadas en sentido longitudinal. Esta
conformación no ofrece la rigidez y resistencia mecánica necesarias
para resistir la fuerza radial ejercida por el film bobinado
alrededor del
alma.US-A-3 856 229 and DE-U-8713881 refer to souls for rolls with a corrugated side wall comprising numerous annular ribs oriented longitudinally. This conformation does not offer the rigidity and mechanical strength necessary to resist the radial force exerted by the film wound around the
soul.
El objetivo de la presente invención consiste en resolver los inconvenientes de la técnica conocida, suministrando un alma para rollos de material laminar que sea práctica, económica, de fácil realización y, al mismo tiempo, capaz de garantizar una adecuada rigidez y resistencia mecánica a las deformaciones.The objective of the present invention is to solve the drawbacks of the known technique, providing a soul for rolls of sheet material that is practical, economical, easily realized and, at the same time, capable of guaranteeing adequate rigidity and mechanical resistance to deformations.
Otro objetivo de la presente invención consiste en suministrar un alma para rollos de material laminar compatible con el material del rollo y, al mismo tiempo, reciclable.Another objective of the present invention is to in supplying a core for rolls of compatible sheet material with the material of the roll and, at the same time, recyclable.
Estos objetivos se alcanzan mediante la invención con las características enumeradas en la admitida reivindicación independiente 1.These objectives are achieved through the invention with the characteristics listed in the admitted independent claim 1.
Algunas ventajosas aplicaciones de la invención se enumeran en las reivindicaciones dependientes.Some advantageous applications of the invention They are listed in the dependent claims.
Según la invención, el alma para rollos de material laminar comprende una pared lateral corrugada. De este modo se obtiene un significativo ahorro en el espesor del material que constituye el alma, garantizando su adecuada rigidez y resistencia a la deformación.According to the invention, the soul for rolls of sheet material comprises a corrugated side wall. Of this mode a significant saving in material thickness is obtained which constitutes the soul, guaranteeing its adequate rigidity and deformation resistance.
Ulteriores características de la invención se indicarán con mayor claridad en la siguiente descripción detallada, referida a una forma determinada exclusivamente a título de ejemplo y, por lo tanto, no limitativo de realización. Dicha forma se ilustra en los esquemas admitidos, en los queFurther features of the invention are indicate more clearly in the following detailed description, referred to a form determined exclusively by way of example and, therefore, not limitative of realization. This form is illustrated in the supported schemes, in which
- la Fig. 1 muestra una vista en perspectiva, parcialmente interrumpida, de un alma para rollos de material laminar según la invención,- Fig. 1 shows a view in perspective, partially interrupted, of a soul for rolls of sheet material according to the invention,
- mientras que la Fig. 1A muestra una vista ampliada del detalle delimitado por el círculo A en la Fig. 1.- while Fig. 1A shows a enlarged view of the detail delimited by circle A in Fig. one.
En la Fig. 1 se ilustra un alma 1, sustancialmente tubular, hueca y con una pared lateral corrugada 2. La pared lateral corrugada 2 presenta numerosas nervaduras anulares 3, que sobresalen radialmente hacia fuera, alternadas con nervaduras anulares 4, que sobresalen radialmente hacia dentro. Las nervaduras externas 3 delimitan intersticios anulares 30 dentro del alma 1, mientras que las nervaduras internas 4 definen intersticios anulares 40 hacia fuera del alma 1.A soul 1 is illustrated in Fig. 1, substantially tubular, hollow and with a corrugated side wall 2. Corrugated side wall 2 has numerous annular ribs 3, which protrude radially outward, alternated with annular ribs 4, projecting radially inwards. The external ribs 3 delimit annular interstices 30 within the soul 1, while internal ribs 4 define interstices ring 40 out of the soul 1.
Tal como se observa en la Fig. 1A, las nervaduras externas 3 y las nervaduras internas 4 tienen un perfil sustancialmente rectangular en sección axial; la dimensión longitudinal a de las nervaduras externas 3 es prácticamente igual a la dimensión longitudinal a de las nervaduras internas 4. De este modo, vista en sección axial, la pared corrugada 2 asume una configuración similar a una onda cuadrada. A título de ejemplo, no limitativo, la extensión longitudinal a de cada nervadura 3 y 4 de la pared corrugada 2 puede variar de 3,4 mm a 3,8 mm. Naturalmente, cuanto mayor es la densidad de nervaduras 3 y 4 distribuidas en la longitud del alma 1, menor es la extensión longitudinal a de las nervaduras y mayor es la resistencia a la deformación del alma 1.As seen in Fig. 1A, the outer ribs 3 and the inner ribs 4 have a substantially rectangular profile in axial section; the longitudinal dimension a of the external ribs 3 is practically equal to the longitudinal dimension a of the internal ribs 4. Thus, seen in axial section, the corrugated wall 2 assumes a configuration similar to a square wave. By way of example, not limitation, the longitudinal extension a of each rib 3 and 4 of the corrugated wall 2 can vary from 3.4 mm to 3.8 mm. Naturally, the greater the density of ribs 3 and 4 distributed over the length of the soul 1, the smaller the longitudinal extension a of the ribs and the greater the resistance to deformation of the soul 1.
La longitud del alma 1 puede variar en función de las necesidades.The length of soul 1 may vary depending on of the needs.
La pared lateral corrugada 2 del alma presenta un espesor s suficientemente reducido. A título de ejemplo, el espesor s de la pared lateral corrugada 2 puede variar de 5 mm a 7 mm, en conformidad con algunos parámetros, como el material utilizado, la rigidez requerida para el alma y la densidad de nervaduras (3, 4).The corrugated side wall 2 has a sufficiently reduced soul thickness s. As an example, the thickness s of the corrugated side wall 2 can vary from 5 mm to 7 mm, in accordance with some parameters, such as the material used, the stiffness required for the core and the density of ribs (3, 4) .
Las extremidades del alma 1 terminan en dos segmentos en forma de manguito 5. Cada segmento en forma de manguito está definido por un perfil sustancialmente arqueado 6, aplicado en superficie lateral exterior del alma 1. La conformación de los segmentos en forma de manguito 5 facilita la sujeción manual del alma por parte del usuario.The extremities of soul 1 end in two sleeve-shaped segments 5. Each sleeve-shaped segment is defined by a substantially arched profile 6, applied in outer lateral surface of the soul 1. The conformation of the sleeve-shaped segments 5 facilitates manual clamping of the soul by the user.
El alma 1 presenta un diámetro interno \diameter_{i} definido por la extremidad interna de las nervaduras que sobresalen hacia dentro 4, y un diámetro externo \diameter_{e} definido por la extremidad externa de las nervaduras que sobresalen hacia fuera 3.Soul 1 has an internal diameter \ diameter_ {i} defined by the inner limb of the ribs protruding inward 4, and an external diameter \ diameter_ {e} defined by the outer extremity of the ribs protruding out 3.
El diámetro interno \diameter_{i} se selecciona en función del tipo de mandril del bobinador en el que se utiliza el alma 1. El diámetro externo \diameter_{e} por el contrario, se selecciona en función de la rigidez, dureza y resistencia del material utilizado para la producción del alma 1, y en conformidad con el peso total del rollo bobinado en dicha alma. Obviamente, una gran diferencia entre el diámetro externo \diameter_{e} y el diámetro interno \diameter_{i} comporta una debilitación de las nervaduras 3 y 4 de la pared corrugada; por el contrario, una pequeña diferencia entre el diámetro externo \diameter_{e} y el diámetro interno \diameter_{i} comporta un fortalecimiento de las nervaduras 3 y 4 de la pared corrugada.The inner diameter \ diameter_ {i} is selected according to the type of mandrel of the winder in which use the soul 1. The outer diameter \ diameter_ {e} by the Otherwise, it is selected based on stiffness, hardness and resistance of the material used for the production of the soul 1, and in accordance with the total weight of the winding roll in said soul. Obviously, a big difference between the outer diameter \ diameter_ {e} and the internal diameter \ diameter_ {i} a weakening of the ribs 3 and 4 of the corrugated wall; by On the contrary, a small difference between the external diameter \ diameter_ {e} and the internal diameter \ diameter_ {i} a strengthening of the ribs 3 and 4 of the wall corrugated
A título puramente enunciativo y no limitativo, el diámetro interno \diameter_{i} puede variar de 20 mm a 80 mm. Preferiblemente, en la presente invención, se seleccionan cuatro valores de diámetro intermedios \diameter_{i}: 25 mm, 38 mm, 50 mm y 76 mm.On a purely enunciative and non-limiting basis, The internal diameter \ diameter_ {i} can vary from 20 mm to 80 mm. Preferably, in the present invention, four are selected intermediate diameter values \ diameter_ {i}: 25 mm, 38 mm, 50 mm and 76 mm.
En función del diámetro interno \diameter_{i}, el diámetro externo \diameter_{e} puede variar según los valores indicados en la tabla siguiente:Depending on the internal diameter \ diameter_ {i}, the outer diameter \ diameter_ {e} can vary according to the values indicated in the following table:
\vskip1.000000\baselineskip\ vskip1.000000 \ baselineskip
Debemos notar que, según la invención, gracias a la pared corrugada 2, el alma 1 garantiza una resistencia a la deformación y una rigidez comparables a las de un alma tradicional con un espesor notablemente mayor, lo que implica un notable ahorro de material para la producción del alma 1.We should note that, according to the invention, thanks to the corrugated wall 2, the soul 1 guarantees a resistance to deformation and rigidity comparable to those of a traditional soul with a noticeably greater thickness, which implies a remarkable saving of material for soul production 1.
Según la invención, el alma 1 se produce preferiblemente mediante extrusión de materiales plásticos. Se utilizan ventajosamente materiales plásticos a base de PE (polietileno), en particular, LLDPE (polietileno lineal de baja densidad). De este modo, el alma 1 es compatible con los filmes de LLDPE y, por lo tanto, si entra en contacto con algunas espiras de dicho material, sigue siendo totalmente reciclable, sin necesidad de separar ambos productos.According to the invention, soul 1 is produced preferably by extrusion of plastic materials. Be advantageously use PE-based plastic materials (polyethylene), in particular, LLDPE (linear low polyethylene density). In this way, soul 1 is compatible with the films of LLDPE and, therefore, if it comes into contact with some turns of said material, remains fully recyclable, without the need for Separate both products.
El alma 1 de PE presenta la ventaja adicional de poder ser utilizada también al aire libre y en ambientes húmedos, ya que no se deteriora con la humedad.PE soul 1 has the additional advantage of can also be used outdoors and in humid environments, since it does not deteriorate with moisture.
A título enunciativo, según la invención, el alma corrugada 1 pesa aproximadamente 90 g, mientras que un alma de cartón tradicional pesa 300 g y una de PVC tradicional pesa 480 g. En consecuencia, gracias a esta invención, el alma corrugada tiene un coste de aproximadamente 1/3 con respecto al de un alma de cartón tradicional, y aproximadamente 1/9 con respecto al de un alma de PVC tradicional.By way of example, according to the invention, the 1 corrugated soul weighs approximately 90 g, while a soul of Traditional cardboard weighs 300 g and a traditional PVC weighs 480 g. Consequently, thanks to this invention, the corrugated soul has a cost of approximately 1/3 with respect to a cardboard core traditional, and approximately 1/9 with respect to that of a soul of Traditional PVC
A la presente forma de realización de la invención se pueden realizar numerosas variaciones y modificaciones de detalles -totalmente accesibles para cualquier técnico del sector-, incluidas en el ámbito de la invención expresado en las reivindicaciones adjuntas.To the present embodiment of the invention numerous variations and modifications can be made of details - fully accessible to any technician of the sector-, included in the scope of the invention expressed in the attached claims.
Claims (14)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04425350A EP1598297B1 (en) | 2004-05-17 | 2004-05-17 | Core for rolls of sheet material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2279331T3 true ES2279331T3 (en) | 2007-08-16 |
Family
ID=34932499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES04425350T Expired - Lifetime ES2279331T3 (en) | 2004-05-17 | 2004-05-17 | SOUL FOR ROLLS OF LAMINARY MATERIAL. |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1598297B1 (en) |
| DE (1) | DE602004004374T2 (en) |
| ES (1) | ES2279331T3 (en) |
| HR (1) | HRP20070105T3 (en) |
| PL (1) | PL1598297T3 (en) |
| SI (1) | SI1598297T1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7712700B2 (en) | 2007-10-02 | 2010-05-11 | Sonoco Development, Inc. | Clean-release tape core |
| IT1400701B1 (en) * | 2010-06-23 | 2013-06-28 | Colines Spa | TUBULAR SUPPORT FOR THE WINDING OF MATERIAL IN THE SHEET |
| DE102011075142A1 (en) | 2011-05-03 | 2012-11-08 | Polycine Gmbh | rewinder |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1258421A (en) * | 1960-03-04 | 1961-04-14 | Teco | Cylinder for textile, paper and similar industries |
| US3856229A (en) * | 1973-12-06 | 1974-12-24 | Ibm | Web winding spool |
| DE8713881U1 (en) * | 1987-10-15 | 1989-02-09 | Kunststoff-Spritzgußwerk Ing. Klaus Burk KG, 5063 Overath | Winding body |
| DE19507514C2 (en) * | 1995-03-03 | 1997-09-25 | Alcan Gmbh | Metal winding tube |
| DE19823402C1 (en) * | 1998-05-26 | 2000-02-17 | Signode Bernpak Gmbh | Material wraps, in particular wrapping material for strapping material for packages, and method for its production |
-
2004
- 2004-05-17 PL PL04425350T patent/PL1598297T3/en unknown
- 2004-05-17 EP EP04425350A patent/EP1598297B1/en not_active Expired - Lifetime
- 2004-05-17 DE DE602004004374T patent/DE602004004374T2/en not_active Expired - Lifetime
- 2004-05-17 SI SI200430227T patent/SI1598297T1/en unknown
- 2004-05-17 ES ES04425350T patent/ES2279331T3/en not_active Expired - Lifetime
-
2007
- 2007-03-16 HR HR20070105T patent/HRP20070105T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HRP20070105T3 (en) | 2007-07-31 |
| PL1598297T3 (en) | 2007-06-29 |
| EP1598297A1 (en) | 2005-11-23 |
| DE602004004374T2 (en) | 2007-11-08 |
| EP1598297B1 (en) | 2007-01-17 |
| SI1598297T1 (en) | 2007-06-30 |
| DE602004004374D1 (en) | 2007-03-08 |
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