ES2554818T3 - Arrangement for a shrink film heater - Google Patents
Arrangement for a shrink film heater Download PDFInfo
- Publication number
- ES2554818T3 ES2554818T3 ES13153333.3T ES13153333T ES2554818T3 ES 2554818 T3 ES2554818 T3 ES 2554818T3 ES 13153333 T ES13153333 T ES 13153333T ES 2554818 T3 ES2554818 T3 ES 2554818T3
- Authority
- ES
- Spain
- Prior art keywords
- heater
- air
- lifting roller
- band
- lifting
- 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.)
- Active
Links
- 229920006300 shrink film Polymers 0.000 title description 3
- 230000008602 contraction Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 description 6
- 239000011888 foil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
- B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
- B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
- B65B53/066—Mobile frames, hoods, posts or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Packaging Of Special Articles (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
Disposición para la aplicación por contracción de láminas en productos embalados, compuesto de a) una banda de rodillos de elevación (1) b) un calentador (2) con una abertura de entrada o de salida, en el que por medio de la banda de rodillos de elevación se pueden introducir productos embalados (3), c) un sistema de conducción de aire realizado entre la banda de rodillos de elevación y el calentador (2) para la circulación de aire, caracterizada por que d) el sistema de conducción de aire dentro del calentador (2) presenta un techo de conducción de aire y e) el calentador (2) presenta una tubuladura de aspiración f) el sistema de conducción de aire de la banda de rodillos de elevación (1) dispone de un canal de aspiración de aire (4), de manera que mediante la elevación de la banda (1) al mismo tiempo se realiza una estanqueización entre el canal de aspiración de aire (4) de la banda de rodillos de elevación y la tubuladura de aspiración del calentador y durante la circulación de aire se produce un efecto de aspiración debajo del palé, mediante el que la lámina se ciñe firmemente a la zona inferior del palé.Arrangement for the application by contraction of sheets in packaged products, composed of a) a band of lifting rollers (1) b) a heater (2) with an inlet or outlet opening, in which by means of the band of Lifted rollers can be introduced packaged products (3), c) an air conduction system made between the lifting roller band and the heater (2) for air circulation, characterized in that d) the conduction system of air inside the heater (2) has an air duct roof and e) the heater (2) has a suction pipe f) the air duct system of the lifting roller belt (1) has a suction channel of air (4), so that by raising the band (1) at the same time, a sealing between the air intake channel (4) of the lifting roller band and the heater suction pipe is carried out and during the Air circulation produces a suction effect under the pallet, whereby the sheet is firmly attached to the lower part of the pallet.
Description
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DESCRIPCIONDESCRIPTION
Disposicion para un calentador de laminas encogiblesArrangement for a shrink foil heater
La presente invencion esta basada en el siguiente objetivo: calentamiento de aire y generacion de una corriente de aire circulante para contraer pilas de papel envueltas en lamina encogible.The present invention is based on the following objective: heating of air and generating a current of circulating air to contract piles of paper wrapped in shrinkable foil.
En el estado de la tecnica, por ejemplo por el documento US2005/0022469A1, es conocida una disposicion para el calentamiento de tubos flexibles encogibles ("heat shrink sleeve") para botellas que segun dicho documento resulta adecuada para que clientes apliquen por contraction laminas tubulares individuales en artlculos pequenos tales como botellas. Para ello, una botella se introduce en un precalentador y, a continuation, en una camara de contraccion. En la camara de contraccion, se insufla aire calentado a traves de una hendidura. El aire caliente preferentemente se difunde mediante lana de acero. Esta disposicion generalmente resulta inadecuada para el uso en productos embalados, especialmente falta una circulation controlada de aire en la camara de contraccion. Para el objetivo previsto por la invencion, la disposicion resulta inadecuada en primer lugar porque no se trata de la aplicacion por contraccion de lamina encogible, sino que solo es adecuada para aplicar tubos flexibles encogibles individuales en productos pequenos. En el documento DE3516609A1 se describe un calentador para lamina encogible sobre un producto embalado, que pudiendo desplazarse verticalmente aplica de forma anular por secciones aire caliente sobre la lamina encogible. Este procedimiento es engorroso y no permite aplicar por contraccion una lamina sobre productos embalados de forma rapida y con ahorro de energla aprovechando la circulacion de aire dentro del calentador.In the state of the art, for example from document US2005 / 0022469A1, a provision for heating shrinkable flexible tubes ("heat shrink sleeve") is known for bottles according to said document is suitable for customers to apply tubular sheets by contraction individual in small items such as bottles. To do this, a bottle is introduced into a preheater and then into a shrink chamber. In the contraction chamber, heated air is blown through a slit. The hot air is preferably diffused by steel wool. This arrangement is generally unsuitable for use in packaged products, especially a controlled circulation of air in the contraction chamber is missing. For the purpose set by the invention, the arrangement is inadequate in the first place because it is not the application by shrinkage shrinkage, but is only suitable for applying individual shrinkable flexible tubes in small products. In document DE3516609A1 a heater for shrinkable film is described on a packaged product, which being able to move vertically applies annularly by hot air sections on the shrinkable sheet. This procedure is cumbersome and does not allow a sheet to be applied by shrinkage over packaged products quickly and with energy saving, taking advantage of the circulation of air inside the heater.
En cuanto a la disposicion cabe mencionar lo siguiente:As for the provision, the following should be mentioned:
Sobre un bastidor se monta un calentador de lamina encogible (2) en el que se introduce desde abajo una banda de rodillos de elevation (1).A shrink-film heater (2) is mounted on a frame in which an elevation roller band (1) is inserted from below.
La banda de rodillos de elevacion (1) es alimentada por medio de un elemento transportador discrecional, por ejemplo, por medio de un transportador de cadena.The lifting roller belt (1) is fed by means of a discretionary conveyor element, for example, by means of a chain conveyor.
La estructura basica del calentador (2) se compone de un armazon en su interior. Desde fuera, dicho armazon se reviste por todos los lados con placas aislantes. La camara de contraccion del calentador (2) esta cerrada en el lado inferior por dos puertas correderas que se pueden desplazar horizontalmente. El accionamiento de las puertasThe basic structure of the heater (2) consists of a frame inside. From the outside, said frame is coated on all sides with insulating plates. The heater contraction chamber (2) is closed on the lower side by two sliding doors that can be moved horizontally. The door drive
correderas se realiza mediante un motor de engranaje comun, accionado electricamente. Este acciona un arbol deSliding is done by a common, electrically driven gear motor. This drives a tree of
marcha sincronica sobre el que estan montadas ruedas de cadena y cadenas. Mediante el arbol de marchasynchronous gear on which chain wheels and chains are mounted. Through the gear shaft
sincronica y el accionamiento comun, las puertas correderas se abren y se cierran de forma simetrica.synchronous and the common drive, the sliding doors open and close symmetrically.
Preferentemente, el calentador (2) esta dotado de una sola abertura que sirve para la entrada y la salida de los productos embalados (3). Dicha abertura deberla estar realizada en el lado del fondo. No obstante, tambien es posible realizar la alimentation del calentador a traves de varias aberturas situadas en el lado del fondo.Preferably, the heater (2) is provided with a single opening which serves for the entry and exit of the packaged products (3). Said opening should be made on the bottom side. However, it is also possible to power the heater through several openings located on the bottom side.
En el interior del calentador (3) se encuentra un sistema de conduction de aire con un ventilador. El ventilador tiene la funcion de hacer correr aire por el elemento calefactor y generar una corriente de aire circulante en el conjunto del calentador (2). En la zona superior de la camara de contraccion, un techo de conduccion de aire garantiza una distribucion uniforme del aire caliente dentro de la camara de contraccion. Dentro de la banda de rodillos de elevacion (1) tambien se encuentra una parte del sistema de conduccion de aire. Cuando la banda de rodillos de elevacion (1) se eleva al interior del calentador (2) se cierra el circuito de circulacion y el aire puede circular.Inside the heater (3) is an air conduction system with a fan. The fan has the function of running air through the heating element and generating a current of circulating air in the heater assembly (2). In the upper area of the contraction chamber, an air duct ceiling guarantees a uniform distribution of the hot air within the contraction chamber. Within the lifting roller belt (1) there is also a part of the air duct system. When the band of lifting rollers (1) rises inside the heater (2) the circulation circuit is closed and the air can circulate.
Durante la circulacion de aire, a traves del canal de aspiration de aire (4) en la banda de rodillos de elevacion (1) y el aire circulante se produce un efecto de aspiracion debajo del pale. Este hace que la lamina se cina firmemente a la zona inferior del pale durante la contraccion.During air circulation, through the air aspiration channel (4) in the lifting roller band (1) and the circulating air an aspiration effect occurs under the pale. This causes the sheet to cook firmly to the lower part of the pale during contraction.
El aire caliente es generado por el elemento calefactor. Si el funcionamiento del horno de contraccion se realiza con gas, se usa un intercambiador de calor. En el caso del calentamiento electrico se usa un registro de calefaccion con varias barras calefactoras.The hot air is generated by the heating element. If the operation of the contraction oven is carried out with gas, a heat exchanger is used. In the case of electric heating, a heating register with several heating bars is used.
La banda de rodillos de elevacion (1) se eleva con cuatro cadenas mediante un motor de engranaje accionado electricamente. Durante ello, la banda de rodillos (1) se gula en las columnas del bastidor en cuatro rieles gula. Cuando la banda de rodillos de elevacion ha alcanzado la position superior, mediante la elevacion de la banda se realiza al mismo tiempo una estanqueizacion entre el canal de aspiracion de aire (4) de la banda de rodillos de elevacion y la tubuladura de aspiracion del calentador. De esta manera, queda cerrado el circuito de circulacion para el aire.The lifting roller belt (1) is lifted with four chains by an electrically driven gear motor. During this, the roller band (1) is glided in the columns of the frame in four glula rails. When the lifting roller belt has reached the upper position, by means of the lifting of the belt, a sealing between the air suction channel (4) of the lifting roller band and the heater suction pipe is carried out at the same time. . In this way, the air circulation circuit is closed.
La secuencia de funcionamiento puede describirse de la siguiente manera:The sequence of operation can be described as follows:
Una pila de papel (3) envuelta en lamina encogible se transporta sobre la banda de rodillos de elevacion (1).A stack of paper (3) wrapped in shrink foil is transported on the lifting roller belt (1).
Para permitir la introduccion por elevacion de la banda de rodillos de elevacion (1), se abren las puertas correderas y se tira hacia arriba la banda de rodillos de elevacion (1). La banda de rodillos de elevacion (1) cierra la camara de contraccion hacia abajo. Cuando la banda de rodillos de elevacion (1) esta acoplada al calentador (2) en la posicion 5 superior, se enciende el ventilador y el aire calentado comienza a circular. Comienza el proceso de contraccion.To allow the lifting roller band (1) to be introduced by elevation, the sliding doors are opened and the lifting roller band (1) is pulled up. The lifting roller belt (1) closes the shrink chamber down. When the lifting roller band (1) is coupled to the heater (2) in the upper position 5, the fan is turned on and the heated air begins to circulate. The contraction process begins.
Una vez finalizado el tiempo de contraccion, se apaga el ventilador, se desciende la banda de rodillos de elevacion (1) y, a continuacion, se cierran las puertas correderas. Una vez que la banda de rodillos de elevacion (1) ha alcanzado la posicion inferior, el pale contraldo se entrega al elemento transportador situado a continuacion.Once the contraction time is over, the fan is turned off, the lifting roller band (1) is lowered and then the sliding doors are closed. Once the lifting roller band (1) has reached the lower position, the pale back is delivered to the conveyor element located below.
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Ahora, el calentador de laminas encogibles (2) esta listo para el siguiente pale.Now, the shrink film heater (2) is ready for the next pale.
En caso de aptitud de la mercancla, tambien es posible una disposicion en la que el producto embalado se introduce desde arriba en el horno de contraccion.In case of suitability of the market, a provision is also possible in which the packaged product is introduced from above into the contraction oven.
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Las figuras 1 y 2 muestran la disposicion con la tubuladura de aspiracion (4)Figures 1 and 2 show the arrangement with the suction pipe (4)
La figura 3 muestra la disposicion con el elemento transportador o la banda de rodillos de elevacion (1) descendidos.Figure 3 shows the arrangement with the conveyor element or the lifting roller band (1) lowered.
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La figura 4 muestra la disposicion con el elemento transportador o la banda de rodillos de elevacion (1) elevados, en la que la banda de rodillos de elevacion (1) estanqueiza el calentador (2) y el horno de contraccion y permite la circulacion de aire.Figure 4 shows the arrangement with the conveyor element or the elevated lifting roller band (1), in which the lifting roller band (1) seals the heater (2) and the contraction oven and allows the circulation of air.
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201220100369 DE202012100369U1 (en) | 2012-02-03 | 2012-02-03 | Arrangement of a shrink-film heater |
| DE202012100369U | 2012-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2554818T3 true ES2554818T3 (en) | 2015-12-23 |
Family
ID=45923811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES13153333.3T Active ES2554818T3 (en) | 2012-02-03 | 2013-01-30 | Arrangement for a shrink film heater |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2623423B1 (en) |
| DE (1) | DE202012100369U1 (en) |
| ES (1) | ES2554818T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022990B (en) * | 2021-03-08 | 2022-11-18 | 四川达优机械有限公司 | Thermal shrinkage packaging machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662512A (en) * | 1968-01-24 | 1972-05-16 | Weldotron Corp | Method and apparatus for shrink-film wrapping a pallet load |
| FR2082861A5 (en) * | 1970-03-25 | 1971-12-10 | Hurdequint Louis | Shrink-wrapping oven - drops over a pack to shrink the bag mouth uniformly using directional hot air jets |
| FR2564033B1 (en) * | 1984-05-10 | 1987-01-02 | Thimon Ste Nouvelle Exploit | METHOD FOR HEATING - WITH A VIEW TO RETRACTING IT - A HEAT SHRINKABLE PLASTIC SHEATH COVERING A LOAD AND A MACHINE FOR CARRYING OUT THE METHOD |
| FR2858297B1 (en) * | 2003-07-31 | 2006-01-20 | Sleever Int | METHOD AND THERMORETRACTION MACHINE FOR THERMORETRACTABLE SLEEVES, INDIVIDUALLY SIDED ON OBJECTS SUCH AS BOTTLES |
-
2012
- 2012-02-03 DE DE201220100369 patent/DE202012100369U1/en not_active Expired - Lifetime
-
2013
- 2013-01-30 ES ES13153333.3T patent/ES2554818T3/en active Active
- 2013-01-30 EP EP13153333.3A patent/EP2623423B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2623423A3 (en) | 2013-08-14 |
| EP2623423A2 (en) | 2013-08-07 |
| DE202012100369U1 (en) | 2012-03-06 |
| EP2623423B1 (en) | 2015-09-02 |
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