ES2356758A1 - Compact head for the application of hot melt adhesive - Google Patents

Compact head for the application of hot melt adhesive Download PDF

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Publication number
ES2356758A1
ES2356758A1 ES200801391A ES200801391A ES2356758A1 ES 2356758 A1 ES2356758 A1 ES 2356758A1 ES 200801391 A ES200801391 A ES 200801391A ES 200801391 A ES200801391 A ES 200801391A ES 2356758 A1 ES2356758 A1 ES 2356758A1
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Spain
Prior art keywords
application
head
tail
tank
melts
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Granted
Application number
ES200801391A
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Spanish (es)
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ES2356758B1 (en
Inventor
Jesus Francisco Barberan Latorre
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Individual
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Individual
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Publication date
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Priority to ES200801391A priority Critical patent/ES2356758B1/en
Priority to EP09159904A priority patent/EP2119509A3/en
Publication of ES2356758A1 publication Critical patent/ES2356758A1/en
Application granted granted Critical
Publication of ES2356758B1 publication Critical patent/ES2356758B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1042—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus

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  • Coating Apparatus (AREA)

Abstract

The head has an adhesive melting reservoir (1) including, in its base, a series of passage outlets (5) communicating with a lower chamber (6), which communicates with an application head (2) i.e. nozzle, through a duct (7). The reservoir is connected to the application head, and surrounded by electrical resistors (8) housed in a peripheral chamber (4) filled with an insulating material. The reservoir is realized with a tight seal to avoid influence of external air on the adhesive, and surrounded by an insulating layer to prevent heat loss at outside.

Description

Cabezal compacto para la aplicación de colas termofusibles.Compact head for the application of tails hot melts.

Sector de la técnicaTechnical sector

La presente invención esta relacionada con la aplicación de colas termofusibles mediante cabezales a los que la cola a aplicar se suministra desde fusores donde por calentamiento se dota a la cola de la fluidez necesaria para la aplicación, proponiendo un cabezal compacto en el que se reúnen de manera conjunta el elemento fusor y el elemento aplicador de la cola fundida.The present invention is related to the application of hot melt tails using heads to which the glue to be applied is supplied from melters where by heating the tail is provided with the fluidity necessary for the application, proposing a compact head where they meet so joint the fuser element and the glue applicator element cast.

Estado de la técnicaState of the art

En la aplicación de colas termofusibles se utilizan fusores para transformar la cola de un estado sólido, en el que convencionalmente se suministra, a un estado fluido necesario para la aplicación.In the application of hot melts, they use fusers to transform the tail of a solid state, into the which is conventionally supplied, at a necessary fluid state For the application.

Convencionalmente los fusores destinados para transformar las colas termofusibles al estado fluido de aplicación, son unos grandes depósitos que se sitúan a cierta distancia del cabezal mediante el que se realiza la aplicación de la cola.Conventionally the fusers intended for transform hot melts to the fluid state of application, they are large deposits that are located at a certain distance from the head by means of which the application of the tail is realized.

Desde el fusor hasta el cabezal de aplicación, la cola fundida se transporta a través de mangueras calefactadas y recubiertas de aislante, para que la cola fundida llegue al cabezal de aplicación en las condiciones de fluidez necesarias.From the fuser to the application head, the molten tail is transported through heated hoses and insulated, so that the molten tail reaches the head of application in the conditions of fluidity necessary.

Estas disposiciones convencionales, necesitan un gran espacio de instalación, debido a la independencia y ubicación por separado de los elementos de fusión y de aplicación de las colas, y además, para que la cola fundida llegue adecuadamente al cabezal de aplicación, se necesitan mangueras de conducción calefactadas, lo cual incrementa el gasto energético.These conventional provisions, need a large installation space, due to independence and location separately from the elements of fusion and application of tails, and also, so that the molten tail properly reaches the application head, conduction hoses are needed heated, which increases energy expenditure.

Objeto de la invenciónObject of the invention

De acuerdo con la invención se propone un cabezal compacto, en el cual se incluyen incorporados conjuntamente el fusor de la cola y el elemento aplicador, de manera que el paso de la cola fundida entre ambos elementos es directo, sin necesidad de conducción por mangueras calefactadas.According to the invention, a compact head, which are incorporated together the fuser of the glue and the applicator element, so that the step of the molten tail between both elements is direct, no need of driving by heated hoses.

Este cabezal objeto de la invención, incluye un depósito calefactado para fundir la cola y una cabeza de aplicación, incorporando una bomba de impulsión para pasar la cola fundida del depósito de fusión hasta la cabeza de aplicación.This head object of the invention includes a heated tank to melt the glue and an application head, incorporating a drive pump to pass the molten tail of the Fusion tank to the application head.

El depósito fusor puede ser de forma variable, abierto o cerrado de manera hermética, en el cual se introduce la cola termofusible en estado sólido, de modo que en el interior, debido al calor que proporcionan unas resistencias eléctricas dispuestas alrededor de dicho deposito, la cola se funde adquiriendo un estado fluido, para ser impulsada hacia la cabeza de aplicación.The fuser tank can be variable, hermetically opened or closed, in which the hot melt glue in solid state, so that inside, due to the heat provided by electrical resistors arranged around said deposit, the tail melts by acquiring a fluid state, to be propelled towards the head of application.

El depósito fusor se prevé rodeado de una capa aislante, para evitar las pérdidas de calor hacia el exterior, con el fin de conseguir el máximo aprovechamiento del consumo energético que se utiliza para la fusión de las colas.The fuser deposit is envisaged surrounded by a layer insulator, to avoid heat losses to the outside, with in order to achieve maximum use of energy consumption which is used for the fusion of the tails.

Por todo ello, dicho cabezal compacto objeto de la invención ofrece unas características que resultan ciertamente ventajosas, adquiriendo vida propia y carácter preferente respecto de los cabezales convencionales con elementos separados que se emplean para la aplicación de las colas termofusibles.Therefore, said compact head object of the invention offers characteristics that are certainly advantageous, acquiring a life of its own and preferential character of conventional heads with separate elements that are used for the application of hot melts.

Descripción de las figurasDescription of the figures

La figura 1 es una perspectiva de un ejemplo constructivo del cabezal compacto de aplicación de colas termofusibles, según la invención.Figure 1 is a perspective of an example construction of the compact tail application head hot melts, according to the invention.

La figura 2 es una sección vertical de dicho cabezal compacto objeto de la invención.Figure 2 is a vertical section of said compact head object of the invention.

La figura 3 es una sección en planta del mismo cabezal compacto anterior.Figure 3 is a plan section of the same front compact head.

La figura 4 es una perspectiva de otro ejemplo constructivo del cabezal compacto preconizado.Figure 4 is a perspective of another example construction of the recommended compact head.

Descripción detallada de la invenciónDetailed description of the invention

El objeto de la invención se refiere a un cabezal compacto para aplicación de colas termofusibles, en el cual se incluyen tanto el elemento destinado para la fusión de la cola, como el elemento de aplicación de la cola fundida.The object of the invention relates to a compact head for application of hot melts, in which both the element destined for the fusion of the tail is included, as the application element of the molten tail.

El cabezal compacto preconizado consta de un depósito fusor (1), el cual como muestra la figura 1 puede tener forma cilíndrica, pudiendo también tener otras formas, como por ejemplo una forma prismática, como representa la figura 4, sin que ello altere el concepto del cabezal aplicador de las colas termofusibles ni su función. Para determinadas colas que reticulan con la humedad del aire, como por ejemplo las colas poliuretánicas, dicho depósito fusor (1) debe establecerse herméticamente cerrado, mientras que para otros tipos de colas que no presentan esta particularidad, no se necesita un cierre hermético.The recommended compact head consists of a fuser tank (1), which as shown in figure 1 can have cylindrical shape, may also have other shapes, such as by example a prismatic form, as shown in figure 4, without this alters the concept of the tail applicator head Hot melts or their function. For certain queues that crosslink with air humidity, such as polyurethane glues, said fuser tank (1) must be tightly sealed, while for other types of queues that do not present this particularity, a tight seal is not needed.

Dicho depósito fusor (1) va acoplado en conexión directa respecto de una cabeza (2) de aplicación de la cola, que puede ser de tipo de labio o de cualquier otra forma convencional de las boquillas existentes de aplicación de colas, disponiendo el conjunto de una bomba (3), destinada para impulsar la cola fundida desde el depósito fusor (1) hasta la cabeza (2) de aplicación.Said fuser tank (1) is coupled in connection direct with respect to a head (2) of application of the tail, which it can be of lip type or any other conventional form of existing queue application nozzles, providing the pump assembly (3), designed to drive the molten tail from the fuser tank (1) to the application head (2).

El deposito fusor (1) se dispone rodeado de resistencias eléctricas (no representadas), en una cámara periférica (4) que se establece llena de material aislante, y en la base dicho depósito (1) determina una serie de salidas (5) de paso hasta una cámara (6), la cual a su vez se halla comunicada a través de un conducto (7) con la cabeza (2) de aplicación de las colas, yendo incorporadas en los espacios entre las salidas (5) y alrededor de la cámara (6), resistencias eléctricas (8).The fuser tank (1) is surrounded by electrical resistors (not shown), in a peripheral chamber (4) which is established full of insulating material, and at the base said tank (1) determines a series of outputs (5) of passage up to a chamber (6), which in turn is communicated through a duct (7) with the head (2) of application of the tails, going incorporated into the spaces between the exits (5) and around the chamber (6), electrical resistors (8).

Con ello así, la cola destinada para la aplicación se introduce en estado sólido en el depósito (1), cayendo por gravedad al fondo provisto con las salidas (5), de forma que merced al calor que proporcionan las resistencias que rodean al depósito (1) se produce una fusión inicial de la cola, la cual en las salidas (5) de la base termina de fundir, merced al calor de las resistencias (7) que se hallan en los espacios entre las mencionadas salidas (5), fluyendo la cola fundida hasta la cámara (6), en donde se mantiene el estado de fusión, y desde dicha cámara (6) la cola fundida es impulsada por la bomba (3) hasta la cabeza (2) de aplicación, en el transcurso hasta la cual se hallan incluidas también resistencias eléctricas (8) para mantener la cola en el adecuado estado de fluidez para la aplicación.With this, the queue destined for application is introduced in solid state in the tank (1), falling by gravity to the bottom provided with the outputs (5), so that thanks to the heat provided by the resistances surrounding the deposit (1) an initial fusion of the tail occurs, which in the outlets (5) of the base finishes melting, thanks to the heat of the resistors (7) found in the spaces between the mentioned exits (5), the molten tail flowing to the chamber (6), where the fusion state is maintained, and from said chamber (6) the tail molten is driven by the pump (3) to the head (2) of application, in the course until which they are included also electrical resistors (8) to keep the tail in the adequate state of fluidity for the application.

En estas condiciones, la cola sólida que se introduce en el depósito (1) se va fundiendo progresivamente en dicho depósito (1), de manera que llega a las salidas inferiores (5) en un estado semifundido, adquiriendo en dichas salidas (5) una fluidez que la permite pasar hasta la cámara (6), de modo que en ese transcurso y en la cámara (6) se completa y mantiene la fusión, impulsándose la cola fundida directamente desde la zona de fusión hacia la cabeza (2) de aplicación, de modo que no existen transcursos de circulación largos en los que la cola pueda enfriarse y perder fluidez, en tanto que el conjunto del cabezal resulta de una dimensión que le permite ser utilizado en espacios reducidos.Under these conditions, the solid tail that enter the tank (1) gradually melts into said tank (1), so that it reaches the lower exits (5) in a semi-molten state, acquiring in said outputs (5) a fluidity that allows it to pass to the chamber (6), so that in that course and in the chamber (6) the fusion is completed and maintained, the molten tail being driven directly from the fusion zone towards the application head (2), so that they do not exist long circulation paths in which the tail can cool and lose fluidity, while the head assembly results from a dimension that allows it to be used in spaces reduced

Claims (4)

1. Cabezal compacto para la aplicación de colas termofusibles, del tipo de los que la cola termofusible se funde en un depósito fusor, desde el cual la cola fundida es impulsada hacia una cabeza de aplicación, caracterizado porque comprende un depósito fusor (1) que va acoplado en conexión directa respecto de una cabeza (2) de aplicación, determinando el depósito fusor (1) en su base una serie de salidas (5) que comunican con una cámara inferior (6), la cual se halla comunicada a su vez, a través de un conducto (7), con la cabeza (2) de aplicación.1. Compact head for the application of hot melts, of the type of which the hot melt glue melts in a melting tank, from which the molten tail is driven towards an application head, characterized in that it comprises a melting tank (1) which It is coupled in direct connection with respect to an application head (2), determining the fuser tank (1) at its base a series of outputs (5) that communicate with a lower chamber (6), which is in turn communicated , through a duct (7), with the application head (2). 2. Cabezal compacto para aplicación de colas termofusibles, de acuerdo con la primera reivindicación, caracterizado porque el deposito fusor (1) se halla rodeado de resistencias eléctricas alojadas en una cámara periférica (4) rellena con material aislante, yendo incorporadas a su vez entre las salidas (5) y alrededor de la cámara inferior (6) resistencias eléctricas (8), de modo que la cola termofusible de aplicación se funde parcialmente en el depósito (1), pasando por las salidas (5) a la cámara inferior (6), en donde se completa la fusión.2. Compact head for the application of hot melts, according to the first claim, characterized in that the melting tank (1) is surrounded by electrical resistors housed in a peripheral chamber (4) filled with insulating material, and in turn incorporated between the outputs (5) and around the lower chamber (6) electrical resistors (8), so that the hot melt application glue partially melts in the tank (1), passing through the outputs (5) to the lower chamber ( 6), where the merger is completed. 3. Cabezal compacto para aplicación de colas termofusibles, de acuerdo con las reivindicaciones primera y segunda, caracterizado porque el depósito fusor (1) se establece con un cierre hermético, para evitar la influencia del aire exterior sobre la cola que se funde.3. Compact head for application of hot melts, according to the first and second claims, characterized in that the melting tank (1) is established with a tight seal, to avoid the influence of outside air on the melting tail. 4. Cabezal compacto para aplicación de colas termofusibles, de acuerdo con las reivindicaciones primera y segunda, caracterizado porque en relación con la cámara inferior (6) va dispuesta una bomba (3), mediante la cual se impulsa la cola fundida desde dicha cámara (6) hacia la cabeza (2) de aplicación.4. Compact head for application of hot melts, according to the first and second claims, characterized in that in relation to the lower chamber (6) a pump (3) is arranged, by means of which the molten tail is driven from said chamber ( 6) towards the application head (2).
ES200801391A 2008-05-14 2008-05-14 COMPACT HEAD FOR THE APPLICATION OF TERMOFUSIBLE TAILS. Expired - Fee Related ES2356758B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES200801391A ES2356758B1 (en) 2008-05-14 2008-05-14 COMPACT HEAD FOR THE APPLICATION OF TERMOFUSIBLE TAILS.
EP09159904A EP2119509A3 (en) 2008-05-14 2009-05-11 Compact head for the application of hot melt adhesive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200801391A ES2356758B1 (en) 2008-05-14 2008-05-14 COMPACT HEAD FOR THE APPLICATION OF TERMOFUSIBLE TAILS.

Publications (2)

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ES2356758A1 true ES2356758A1 (en) 2011-04-13
ES2356758B1 ES2356758B1 (en) 2012-01-25

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ES200801391A Expired - Fee Related ES2356758B1 (en) 2008-05-14 2008-05-14 COMPACT HEAD FOR THE APPLICATION OF TERMOFUSIBLE TAILS.

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EP (1) EP2119509A3 (en)
ES (1) ES2356758B1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2015018953A1 (en) * 2013-08-07 2015-02-12 Meler Aplicadores De Hot-Melt, S.A. Melter

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Publication number Priority date Publication date Assignee Title
EP1979144B1 (en) 2006-01-17 2012-01-04 Nordson Corporation Apparatus and method for melting and dispensing thermoplastic material
EP2523894B1 (en) 2010-01-14 2017-08-23 Nordson Corporation Jetting discrete volumes of high viscosity liquid
US9061316B2 (en) 2011-10-28 2015-06-23 Nordson Corporation Mountable device for dispensing heated adhesive
US9304028B2 (en) 2012-09-20 2016-04-05 Nordson Corporation Adhesive dispensing device having optimized reservoir and capacitive level sensor
US10099242B2 (en) 2012-09-20 2018-10-16 Nordson Corporation Adhesive melter having pump mounted into heated housing
US9169088B2 (en) 2012-09-20 2015-10-27 Nordson Corporation Adhesive dispensing device having optimized cyclonic separator unit
US9200741B2 (en) 2012-10-25 2015-12-01 Nordson Corporation Adhesive dispensing system and method using smart melt heater control
US9120115B2 (en) 2012-10-25 2015-09-01 Nordson Corporation Dispensing systems and methods for monitoring actuation signals for diagnostics
US9427768B2 (en) * 2012-10-26 2016-08-30 Nordson Corporation Adhesive dispensing system and method with melt on demand at point of dispensing
US9243626B2 (en) 2012-11-19 2016-01-26 Nordson Corporation Adhesive dispensing system and method including a pump with integrated diagnostics
US9574714B2 (en) 2013-07-29 2017-02-21 Nordson Corporation Adhesive melter and method having predictive maintenance for exhaust air filter
CN107716227A (en) * 2016-08-12 2018-02-23 诺信公司 Glue machine

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US4474311A (en) * 1981-07-31 1984-10-02 Nordson Corporation Thermoplastic melting and dispensing apparatus
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US5814790A (en) * 1995-10-04 1998-09-29 Nordson Corporation Apparatus and method for liquifying thermoplastic material
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US20040200858A1 (en) * 2003-02-15 2004-10-14 Robatech Ag Procedure, apparatus and system for controlled dispensing of a prepared medium capable of flowing
EP1894689A1 (en) * 2006-08-28 2008-03-05 SCM GROUP S.p.A. Glue dispensing apparatus

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Publication number Priority date Publication date Assignee Title
US2567960A (en) * 1949-10-03 1951-09-18 William R Myers Plastic extrusion gun
US4474311A (en) * 1981-07-31 1984-10-02 Nordson Corporation Thermoplastic melting and dispensing apparatus
DE3815089A1 (en) * 1988-05-04 1989-11-09 Hesselmann Planatolwerk H Process and an apparatus for liquefying hot melt compounds
US5814790A (en) * 1995-10-04 1998-09-29 Nordson Corporation Apparatus and method for liquifying thermoplastic material
EP1260330A2 (en) * 2001-05-18 2002-11-27 SCM GROUP S.p.A. A glue feed unit in particular for machines which process wooden panels
US20040200858A1 (en) * 2003-02-15 2004-10-14 Robatech Ag Procedure, apparatus and system for controlled dispensing of a prepared medium capable of flowing
EP1894689A1 (en) * 2006-08-28 2008-03-05 SCM GROUP S.p.A. Glue dispensing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015018953A1 (en) * 2013-08-07 2015-02-12 Meler Aplicadores De Hot-Melt, S.A. Melter
US10010903B2 (en) 2013-08-07 2018-07-03 Meler Aplicadores De Hot-Melt, S.A. Melter

Also Published As

Publication number Publication date
ES2356758B1 (en) 2012-01-25
EP2119509A3 (en) 2010-02-17
EP2119509A2 (en) 2009-11-18

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