WO2001079111A1 - Procede et appareil permettant l'application continue d'un adhesif thermofusible - Google Patents

Procede et appareil permettant l'application continue d'un adhesif thermofusible Download PDF

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Publication number
WO2001079111A1
WO2001079111A1 PCT/US2001/011887 US0111887W WO0179111A1 WO 2001079111 A1 WO2001079111 A1 WO 2001079111A1 US 0111887 W US0111887 W US 0111887W WO 0179111 A1 WO0179111 A1 WO 0179111A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
hot
recited
melt adhesive
glue pot
Prior art date
Application number
PCT/US2001/011887
Other languages
English (en)
Inventor
Lyn E. Bright
Original Assignee
Westport Trading Company, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Westport Trading Company, Inc. filed Critical Westport Trading Company, Inc.
Priority to AU2001253394A priority Critical patent/AU2001253394A1/en
Publication of WO2001079111A1 publication Critical patent/WO2001079111A1/fr

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/022—Melting the material to be shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0097—Glues or adhesives, e.g. hot melts or thermofusible adhesives

Definitions

  • This invention pertains generally to feed systems for hot-melt adhesive materials and, more particularly, to a method and apparatus for automatically and continuously applying hot- melt adhesive within predetermined temperature and viscosity ranges.
  • Hot-melt adhesive is particularly popular in commercial and industrial applications due to the ease of handling in the cooled state and controllable flow characteristics in the heated or melted state. Other desirable characteristics of hot-melt adhesive are its quick-setting, adhesive "tack" and gap-filling properties.
  • the adhesive must undergo a change in state before it can be used; namely, the adhesive must be heated so that it changes from a solid state to a fluid state before the adhesive can be applied to an object.
  • this seemingly simple process poses a considerable challenge to the use of automated equipment for applying hot-melt adhesive in commercial and industrial applications. To appreciate this problem more fully, an understanding of basic hot-melt adhesive application systems will be helpful.
  • a basic system commonly used for applying hot-melt adhesive includes a melting pot, a pump, a hose, and an application nozzle.
  • the pot which is normally rectangular in shape but can have other shapes such as square or round, is heated by means of a heating element typically located at the bottom of the pot, although the heating element can be positioned at any point in the pot elevation or structure.
  • the adhesive is melted in the pot and then pumped through the hose to the application nozzle.
  • the type of nozzle may vary but typically comprises a spray nozzle or a glue bar which then spreads the adhesive over the surface of an object.
  • the melted adhesive will be spread over a glue wheel which in turn transfers the adhesive to label stock much like ink is spread in a gravure printing press. If the maximum temperature of the glue is exceeded at any time during the heating process a distinct color change occurs within the glue and with continued heating it can become charred. A glue pan is often used to catch excess adhesive which is then returned to the pot directly or through a filtration system for recirculation.
  • problems can arise when adhesive must be applied on a continuous and consistent basis.
  • One difficulty is continuously feeding the glue pot while at the same time keeping the adhesive within a prescribed temperature and viscosity range that allows for viscosity and open/set time necessary for the application.
  • Other difficulties involve temperature differentials at the point of application of the adhesive which create "stringing" of the adhesive, distortion of materials, and/or contamination of the object or components in the system. Each of these situations can result in lower production efficiencies and poor adhesion characteristics.
  • the present invention pertains to a method and apparatus for automatically and continuously applying hot-melt adhesive within predetermined temperature and viscosity ranges.
  • the present invention solves the problems inherent in conventional hot-melt adhesive application systems by employing a supply of hot- melt adhesive which is fed into the glue pot on demand.
  • hot-melt adhesive in its solid state is wrapped around a spool for support, and the spool is mounted to, or forms a part of, an adhesive loading mechanism located in the system.
  • the solid hot-melt adhesive is preferably extruded in a continuous strand similar to rope or in a flat-form similar to a sheet, either of which is wrapped around the spool like a ribbon. While a roll-fed form of adhesive is preferred, it will be appreciated that the adhesive and its associated support mechanism, as well as other specific aspects of the invention described below, can be embodied in other forms without departing from the present invention.
  • the loading mechanism is coupled to the glue pot and configured to unwind the spool and feed the adhesive into the glue pot on demand, so that there is a continuous supply of melted adhesive for subsequent output.
  • the loading mechanism can be operated continuously at a predetermined speed, triggered automatically when the amount of adhesive in the glue pot falls to a predetermined level or another predetermined criteria is reached, or operated manually if desired.
  • a pre-heat device such as a chamber, pot, or the like can be positioned between the adhesive loading mechanism and the input to the glue pot to soften or partially melt the adhesive unwound from the spool before it enters the glue pot, or even completely melt the adhesive so that it enters the glue pot already in a melted form.
  • the temperature of the pre-heat device would be higher than typically employed in the pot to account for heat loss during the transfer of melted adhesive from the pre-heat device to the glue pot.
  • the size of the spool of adhesive roll is limited only to the practical considerations of the application.
  • a pallet with one large spool could be provided to supply a feed of glue for days, if not weeks or months.
  • a lightweight spool could be formed so that the spool could be put into place and fed by a wide range of operators.
  • a plurality of spools of adhesive can be provided, and arranged to provide multiple simultaneous feeds, or spliced together to form a single continuous feed. It will further be appreciated that a combination of feed mechanisms could be employed where, for example, some adhesive is fed directly into the glue pot while an additional amount of adhesive is heated in the pre-heat chamber prior to being fed into the glue pot.
  • the design of the glue pot and the physical structure of the adhesive are altered in relation to conventional approaches to allow for a continuous feed of the adhesive while also eliminating any need to open the pot during resupply of the adhesive.
  • the present invention advantageously lowers the amount of adhesive which must be maintained in the pot available for application on demand. Accordingly, the size of the glue pot may then be reduced.
  • An object of the invention is to provide an adhesive arrangement and glue application system which overcomes the above-noted problems of conventional systems in a cost effective manner.
  • Another object of the invention is to provide an adhesive arrangement and glue application system which allow for continuous feeding of adhesive while also improving the quality and consistency of the adhesive for use in any commercial or industrial application, including labeling, packaging applications, and parts assembly.
  • FIG. 1 is a perspective view of a spool of adhesive in accordance with a first (stranded) embodiment of the present invention.
  • FIG. 2 is a perspective view of a spool of adhesive in accordance with a second (ribbon) embodiment of the present invention.
  • FIG. 3 is a schematic diagram in perspective of an embodiment of a glue-pot with a preheat device which is being fed solid adhesive continuously according to the present invention.
  • FIG. 4 is a schematic diagram of an embodiment of a continuous glue application system according to the present invention employing the glue pot and feed arrangement shown in FIG. 1 but with the pre-heat device removed.
  • FIG. 5 is a partial schematic diagram of an embodiment for the feed roller portion of the adhesive loader portion of the invention shown in FIG. 4.
  • FIG. 6 is a schematic diagram of an alternate embodiment of the adhesive feed mechanism shown in FIG. 4 configured with a second adhesive loader to maintain an adhesive feed loop with slack.
  • FIG. 7 is a schematic diagram of an alternative embodiment of the adhesive feed mechanism shown in FIG. 4 wherein adhesive pillows are dispensed from a hopper onto a conveyor.
  • FIG. 1 through FIG. 7 where like reference numbers denote like parts, and in the process steps described in connection therewith. It will be appreciated that the apparatus may vary as to configuration and as to details of the parts, and that the method may vary as to the specific steps and sequence, without departing from the basic concepts as disclosed herein.
  • FIG. 1 an adhesive arrangement 10 in accordance with a first embodiment of the present invention is shown. More specifically, as shown, hot-melt adhesive is processed or extruded into a continuous strand 12 and wrapped around a spool 14 for support and subsequent dispensing, about axis 16. While the adhesive can have round, triangular, hexagonal or other regular or irregular cross-sectional shapes, flat ribbons or sheets of adhesive are preferred.
  • FIG. 2 shows a second embodiment of this arrangement wherein the hot-melt adhesive is processed or formed into a continuous flat ribbon or sheet 18. For many applications, a thinner and wider adhesive strip is preferred because such an arrangement facilitates rapid melting.
  • the hot-melt adhesive itself can be made from any suitable process and formulation known in the art. Therefore, the specific composition of hot-melt adhesive used in the present invention is not critical and will not be described herein.
  • the rolls can be formed in a size that best suits the intended application.
  • a ten to twenty pound roll can supply a half-shift of production, thereby reducing the need for an operator to constantly monitor glue levels.
  • the adhesive can be coated with a powder such as cornstarch before being rolled onto the spool so as to facilitate easier dispensing by reducing the tackiness of the adhesive, increasing pliability of the roll as it is unwound, and reducing the amount of adhesive potentially lost during use.
  • commercially available adhesives having a sheath around the adhesive can be used to prevent undesired blocking (sticking) of the material. Such sheaths are designed become part of the melted adhesive, so contamination is not a problem.
  • Various manufacturers, such as Croda and National Adhesives supply adhesives having the above- described sheath.
  • FIG. 3 a system for continuous application of hot melt adhesive according to the present invention is shown.
  • a basic glue pot and feed mechanism 20 are shown as an introduction to the more detailed embodiment of FIG. 4.
  • FIG. 3 shows the adhesive strand material 12 being fed from spool 14 into the input 22 of a feed tube 24.
  • the solid adhesive material moving through feed tube 24 is first heated by a pre-heat device 26 before it exits the output 28 of feed tube 26 into the glue pot 30.
  • a pump 32 then pumps the melted adhesive 34 from glue pot 30 to a glue application system 36 (FIG. 4) which performs adhesive application.
  • pre-heat device 26 optimizes the processing of the hot-melt adhesive.
  • This pre-heat device can include a heating element 38 located in proximity to the solid hot-melt adhesive, which is arranged to maintain a higher temperature within the pre-melt device than the temperature within the glue pot, or any other suitable heating element.
  • pre-heat device 26 can be a chamber, another glue pot, or other heating system that is intermediate to hot-melt adhesive 12 and glue pot 30.
  • FIG. 4 a preferred embodiment of a complete continuous feed glue application system 40 is shown.
  • pre-heat device 38 is not shown in FIG. 4, but would be incorporated as described above with reference to FIG. 3.
  • the system comprises three basic stages.
  • the first stage comprises an adhesive feed system 42 comprising spool 14 with adhesive 12 and an adhesive loader 44.
  • the second stage comprises glue pot 30 where the adhesive is melted
  • the third stage comprises glue application system 36 where the hot liquid glue is distributed and applied.
  • spool 14 with adhesive 12 is rotatably mounted about axis 16 to any conventional spool support.
  • Adhesive loader 44 is provided to controllably unwind the adhesive from the spool, and feed the unwound adhesive into the glue pot.
  • adhesive loader 44 includes a motor driven bottom roller 46 which operates in conjunction with a powered or un-powered upper roller 48 to create a pulling force on the adhesive when the adhesive is positioned between the two rollers. The pulling force unwinds the solid-form adhesive from the spool at a controlled rate for feeding into the adhesive application system.
  • Bottom roller 46 can be driven using a pulley /belt arrangement 50 coupled to a motor 52.
  • both rollers could be powered or the top roller could be powered with the bottom roller being un-powered.
  • the outer surfaces of the two rollers can be configured to increase friction or gripping ability between bottom roller 46 and top roller 48 by adding a plurality of teeth 54 around the periphery of the rollers, a portion of which are shown in FIG. 5, or other suitable surface appendages, or by providing rollers with appropriate surface roughening.
  • non-stick coatings can be added to the surface such rollers so that the solid-form glue does not adhere to the roller.
  • Motor 52 may be any suitable type of motor, including a DC stepper or servo type motor.
  • a direct drive arrangement could be substituted for the belt drive arrangement shown.
  • feed system 42 directs the end of the solid adhesive 12 is into feed tube 24.
  • feed tube 24 is located in the top of glue pot 30 so as to allow gravity to assist feeding of the adhesive into the pot.
  • a safety flap arrangement is also provided within the glue pot to seal off feed tube 30 and prevent any backflow or overflow of melted adhesive if the level of adhesive in the pot ever reached the top.
  • the flap arrangement is formed by a pair of swinging doors 56a, 56b mounted via suitable hinges (not shown) to an inside surface of the top of the pot.
  • Each door preferably would be mounted at an angle relative to the level of the glue such that when the glue level is below the doors, gravity will allow the doors to hang down into the pot, but as the glue level rises, the glue will make contact with the doors and force them upward into a closed position.
  • control of the feed motor 52 is automated through a feedback sensor arrangement associated with the glue pot.
  • a low level sensor 58 provides an output signal indicative of the glue level in the pot reaching a low point AA@. Output of a low level signal causes a controller 60 to activate the feed motor to add more adhesive to the pot.
  • a high level sensor 62 provides an output indicative of the level of glue in the pot reaching a desired high point AB@. Controller 60 stops motor 52 in response to a high signal.
  • Sensors 58 and 62 can be implemented using any suitable type of level sensor, such as an infrared (IR) transmitter/receiver arrangement which can pass a beam of light across the inside of the glue pot.
  • IR infrared
  • Controller 60 is preferably implemented as a programmed data processing system, such as a personal computer, programmed to monitor the sensors to control operation of motor 52.
  • controller 60 controller can be connected to an audible and/or visual alarm system 64 to provide an alert to system operators regarding glue level in the pot or malfunction of motor 52.
  • a color monitoring sensor 66 can be connected to the glue pot for providing an output signal indicative of the color of the glue.
  • Such a sensor arrangement can provide, for example, an indication of glue burning. This color detecting sensor can be output directly to an alarm or processed by controller 60 which provides output to the alarm system and/or to the heat control arrangement.
  • Glue pot 30 can be heated to a desired temperature using any suitable type of heating arrangement (not shown), such as a conventional burner unit, a microwave unit, or heating elements mounted around glue pot 30 at any suitable position along the elevation of the pot.
  • a temperature sensor 68 can be mounted to the glue pot to provide a feedback control signal for controlling operation of the heating elements to maintain the desired temperature level.
  • a conventional thermostatic control system with an adjustable set point or the like can be employed for this purpose. Other parameters, such as viscosity of the melted adhesive, could be monitored and controlled as well.
  • solid hot-melt adhesive can be continuously supplied from spool 12 to allow glue to be continually fed into the glue pot without any operator intervention.
  • the melted adhesive can then be pumped through a glue line 70 by pump 32 to glue application system 36.
  • pump 32 comprises an air pump that pumps glue from an outlet in the bottom of the glue pot and into glue line 70.
  • the melted adhesive could be gravity feed to glue application system 36 to reduce complexity.
  • the melted glue preferably is filtered by at least one strainer which is connected to the pot at the outlet before distribution through glue line 70.
  • a preferred embodiment utilizes two strainers, 72a, 72b, connected back to back.
  • the glue application system 36 can also include heated control nozzles (not shown) to further improve application results.
  • a second adhesive loader 74 having a top roller 76 and a bottom roller 78 could be employed as schematically shown. Either one or both of the rollers could be powered and configured in the same way as previously described with respect to rollers 46, 48 in adhesive loader 44. The purpose of this arrangement would be to provide a loop 80 in the continuous strand of adhesive to maintain slack. In this way, potential intermittent changes in feed speed can be eliminated that could otherwise result from binding or the like in spool 14.
  • Adhesive loader 44 would continue to operate as a "finite feeder” in the same manner as heretofore described, and adhesive loader 74 would function as a "rough feeder” to maintain slack in loop 80.
  • Loop 80 could be guided by an arcuate channel, roller or the like (not shown) within a housing 82 having optical sensors 84a, 84b operatively coupled to controller 60 to monitor the configuration of loop 80 and control the operation of adhesive loader 74 to maintain slack in the loop.
  • While the adhesive feed system has been described in terms of a single spool, another option for feeding the solid adhesive material is to provide a feed rack formed from a plurality of spools (not shown). Each of the spools can be connected to the loader so as to provide an input feed to the adhesive loader. The multiple spools can be arranged to provide multiple simultaneous feeds, or spliced together to form a single continuous feed.
  • FIG. 7 schematically shows a hopper 86 from which conventional adhesive pillows 88 having a surrounding sheath are dropped onto a conveyor 90 for delivery to the glue pot.
  • AC air-conditioner
  • the adhesive could alternatively be fed directly into the glue application system 26, such as a glue bar, spray head, or other application head, that contains a heating element.
  • the present invention enhances a hot-melt adhesive application system by continually supplying adhesive in solid-form to a glue pot.
  • the adhesive can be fed directly into the glue pot or, optionally, fed into a pre-heating chamber to partially or completely melt the adhesive before being fed into the melting pot.
  • the present invention allows for continuous replenishment of a glue pot while improving the quality and consistency of the melted-form adhesive pumped from the glue pot for use in labeling, packaging, or other commercial and industrial processes.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

La présente invention concerne un agencement d'adhésif thermofusible (10) et un système d'application de colle (36) qui permettent d'alimenter de façon continue un bac à colle (30) en adhésif sous forme solide. L'adhésif sous forme solide est traité de façon qu'il forme un ruban (12) ou une feuille plate (18) continue et qu'il est enroulé autour d'une bobine d'alimentation (14). On déroule alors l'adhésif sous forme solide et on l'amène directement dans le bac à colle (30) ou, facultativement, dans une chambre de préchauffage (26) afin de le faire fondre partiellement ou complètement avant de l'introduire dans le bac. L'invention permet d'alimenter de façon continue un bac à colle (30) tout en améliorant la qualité et la consistance de l'adhésif sous forme fondue qui pompé dans le bac à colle (30) afin d'être utilisé pour l'étiquetage, l'emballage ou d'autres procédés commerciaux ou industriels.
PCT/US2001/011887 2000-04-14 2001-04-11 Procede et appareil permettant l'application continue d'un adhesif thermofusible WO2001079111A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001253394A AU2001253394A1 (en) 2000-04-14 2001-04-11 Method and apparatus for continuous application of hot-melt adhesive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54982800A 2000-04-14 2000-04-14
US09/549,828 2000-04-14

Publications (1)

Publication Number Publication Date
WO2001079111A1 true WO2001079111A1 (fr) 2001-10-25

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AU (1) AU2001253394A1 (fr)
WO (1) WO2001079111A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1773712A2 (fr) * 2004-06-10 2007-04-18 Liquid Control Corporation Procede et appareil de distribution d'adhesif thermofusible
JP2007113003A (ja) * 2005-10-06 2007-05-10 Natl Starch & Chem Investment Holding Corp 一体化された低適用温度ホットメルト接着剤加工システム
CN100464874C (zh) * 2003-10-31 2009-03-04 诺信公司 利用机器可读信息的热熔性粘合剂系统和方法
EP2329889A1 (fr) * 2009-12-04 2011-06-08 Sika Technology AG Procédé de fabrication d'un tronçon de colle à fondre chaude enveloppée avec de la cire
GB2485041A (en) * 2010-10-27 2012-05-02 Xerox Corp Automatic glue level control
WO2014065837A1 (fr) * 2012-10-25 2014-05-01 Graco Minnesota Inc. Capteur de niveau de matière fondue chaude et logement pour capteur
CN104091855A (zh) * 2014-06-05 2014-10-08 浚丰太阳能(江苏)有限公司 简易灌胶机
EP2776172A4 (fr) * 2011-11-07 2015-11-25 Graco Minnesota Inc Système de fusion à chaud
WO2016073566A1 (fr) * 2014-11-04 2016-05-12 Nordson Corporation Système et procédé de distribution d'adhésifs thermofusibles
US9878515B2 (en) 2013-05-29 2018-01-30 H.B. Fuller Company Packaged hot-melt pressure sensitive adhesive
ES2798177A1 (es) * 2019-06-07 2020-12-09 Focke Meler Gluing Solutions S A Sistema de fusion de adhesivos termofusibles

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US3318481A (en) * 1965-12-27 1967-05-09 United Shoe Machinery Corp Devices for melting and dispensing molten thermoplastic material
US3377012A (en) * 1966-04-06 1968-04-09 Western Electric Co Apparatus for applying a coating of a fused material to an article
US4613062A (en) * 1984-04-17 1986-09-23 Continental Can Company, Inc. Hot melt material dispenser
US4804110A (en) * 1986-01-08 1989-02-14 Charles R. Sperry Apparatus, method and article for applying a melted adhesive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318481A (en) * 1965-12-27 1967-05-09 United Shoe Machinery Corp Devices for melting and dispensing molten thermoplastic material
US3377012A (en) * 1966-04-06 1968-04-09 Western Electric Co Apparatus for applying a coating of a fused material to an article
US4613062A (en) * 1984-04-17 1986-09-23 Continental Can Company, Inc. Hot melt material dispenser
US4804110A (en) * 1986-01-08 1989-02-14 Charles R. Sperry Apparatus, method and article for applying a melted adhesive

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100464874C (zh) * 2003-10-31 2009-03-04 诺信公司 利用机器可读信息的热熔性粘合剂系统和方法
US8137745B2 (en) 2003-10-31 2012-03-20 Nordson Corporation Hot melt adhesive system and method using machine readable information
US8784935B2 (en) 2003-10-31 2014-07-22 Nordson Corporation Hot melt adhesive system and method using machine readable information
EP1773712A4 (fr) * 2004-06-10 2009-06-17 Graco Ohio Inc Procede et appareil de distribution d'adhesif thermofusible
EP1773712A2 (fr) * 2004-06-10 2007-04-18 Liquid Control Corporation Procede et appareil de distribution d'adhesif thermofusible
US8225963B2 (en) 2005-10-06 2012-07-24 Henkel Ag & Co. Kgaa Integrated low application temperature hot melt adhesive processing system
JP2007113003A (ja) * 2005-10-06 2007-05-10 Natl Starch & Chem Investment Holding Corp 一体化された低適用温度ホットメルト接着剤加工システム
EP1792663A2 (fr) * 2005-10-06 2007-06-06 National Starch and Chemical Investment Holding Corporation Système de traitement integré d'adhésif thermofusible à basse température d'application
EP1792663A3 (fr) * 2005-10-06 2008-01-23 National Starch and Chemical Investment Holding Corporation Système de traitement integré d'adhésif thermofusible à basse température d'application
EP2329889A1 (fr) * 2009-12-04 2011-06-08 Sika Technology AG Procédé de fabrication d'un tronçon de colle à fondre chaude enveloppée avec de la cire
WO2011067213A1 (fr) * 2009-12-04 2011-06-09 Sika Technology Ag Procédé de production d'un cordon d'adhésif thermofusible enveloppé de cire
CN102555576A (zh) * 2010-10-27 2012-07-11 施乐公司 自动控制胶水平面的方法及装置
GB2485041A (en) * 2010-10-27 2012-05-02 Xerox Corp Automatic glue level control
EP2776172A4 (fr) * 2011-11-07 2015-11-25 Graco Minnesota Inc Système de fusion à chaud
WO2014065837A1 (fr) * 2012-10-25 2014-05-01 Graco Minnesota Inc. Capteur de niveau de matière fondue chaude et logement pour capteur
CN104755175A (zh) * 2012-10-25 2015-07-01 格瑞克明尼苏达有限公司 热熔液位传感器和传感器壳体
US9267647B2 (en) 2012-10-25 2016-02-23 Graco Minnesota Inc. Hot melt level sensor and sensor housing
US9878515B2 (en) 2013-05-29 2018-01-30 H.B. Fuller Company Packaged hot-melt pressure sensitive adhesive
CN104091855A (zh) * 2014-06-05 2014-10-08 浚丰太阳能(江苏)有限公司 简易灌胶机
WO2016073566A1 (fr) * 2014-11-04 2016-05-12 Nordson Corporation Système et procédé de distribution d'adhésifs thermofusibles
CN107073508A (zh) * 2014-11-04 2017-08-18 诺信公司 用于分配热熔粘合剂的系统和方法
US9920222B2 (en) 2014-11-04 2018-03-20 Nordson Corporation System and method for dispensing hot melt adhesives
ES2798177A1 (es) * 2019-06-07 2020-12-09 Focke Meler Gluing Solutions S A Sistema de fusion de adhesivos termofusibles

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