EP3059018B1 - Spendervorrichtung zum schmelzen und austragen von hot melt kleber für automatische klebesysteme, und automatische klebesystem mit diser spendervorrichtung - Google Patents

Spendervorrichtung zum schmelzen und austragen von hot melt kleber für automatische klebesysteme, und automatische klebesystem mit diser spendervorrichtung Download PDF

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Publication number
EP3059018B1
EP3059018B1 EP16153185.0A EP16153185A EP3059018B1 EP 3059018 B1 EP3059018 B1 EP 3059018B1 EP 16153185 A EP16153185 A EP 16153185A EP 3059018 B1 EP3059018 B1 EP 3059018B1
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EP
European Patent Office
Prior art keywords
melter body
wire
dispenser device
inner passage
outlet
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Application number
EP16153185.0A
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English (en)
French (fr)
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EP3059018A1 (de
EP3059018A8 (de
Inventor
Enrico Bianchi
Maria Paola Bianchi
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Bianchi Enrico
Bianchi Maria Paola
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Individual
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Publication of EP3059018A8 publication Critical patent/EP3059018A8/de
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    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
    • 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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00523—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material
    • B05C17/00526—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material the material being supplied to the apparatus in a solid state, e.g. rod, and melted before application

Definitions

  • the present invention relates to a dispenser device to melt and dispense hot melt glue starting from a hot melt solid glue as a continuous wire, for example for an automatic glueing system. More specifically, the invention relates to an interchangeable device, easily mountable to/removable from a support structure of an automatic glueing system, or for a glueing machine. The present invention further relates to an automatic glueing system comprising one or more of said interchangeable devices mounted to said system. For example, said glueing system is configured to carry out some processing/glueing steps of pleated filter media.
  • glueing machines which receive an incoming solid hot melt glue wire, melt it continuously thus forming molten glue, and dispense such a molten glue at an output for gluing the processed product.
  • US4804110 discloses a dispenser for extruding a hot melt adhesive obtained by melting a rod of adhesive in a normally closed pressurized melting chamber.
  • the dispenser device comprises only one meting chamber and only one rod drive located in the vicinity of the spool.
  • US4804110 discloses the preamble of claim 1.
  • Such machines generally comprise a device for feeding the hot melt glue wire, arranged upstream of a melter body, which is adapted to melt such a wire thus forming molten glue, and to provide such a molten glue at the output.
  • Such machines further include a support for a reel of hot melt solid glue wire upstream of the wire feeding device.
  • the melting of a continuous hot melt glue wire is a rather delicate process requiring a controlled heating of the wire itself, so as to obtain a molten wire at the output with a predetermined consistency but above all, not to alter the physical properties of solidification of the molten glue, of adhesion strength or mechanical seal of the solidified glue after said melting step.
  • the hot melt solid glue wire which is delimited by an outer surface, for example cylindrical in shape, passes through a passage within a melter body, it receives an amount of heat from the melter body which passes through the outer surface of the solid glue wire and gradually penetrates into the interior of the same, which begins to melt from the outside inwards according to a melting rate which depends on the amount of heat supplied and on the diameter of the glue wire. Generally, the greater the wire diameter, the longer the time required for the complete melting of the wire. Simultaneously, the wire is fed along the passage in the melter body according to a predetermined feeding speed, on which the residence time of the hot melt glue wire inside the melter body depends.
  • the melting rate of a length unit of the hot melt glue wire is related to the amount of heat supplied in the time unit, the diameter of the wire and the feeding speed.
  • a maximum value of such a melting rate is determined by the chemical and physical features of the material forming the hot melt slid glue wire, and therefore it forms a technological barrier which, if exceeded, alters the chemical-physical-structural features of the solidified glue after said melting step.
  • the residence time of the wire into the melter body should be increased. This can be achieved either by reducing the wire feeding speed into the melter body or by making a melter body with an inner passage for the solid wire which extends by a greater length.
  • the feeding speed is reduced, the advantage due to the greater diameter of the wire is reduced or canceled, and therefore the molten glue rate does not benefit therefrom; if the length of the passage for the solid glue wire in the molten body is increased, a large melter body must be made, which is therefore too bulky and heavy to be used on a device easily interchangeable and mountable/dismountable to/from a support structure of an automatic glueing system.
  • a melter body with an inner path which extends by a considerable length in addition to involving the drawback of being excessively bulky and heavy for a removable and interchangeable device, would also entail the drawback of requiring a greater heating energy of the melter body due to the greater volume to be heated.
  • known devices do not allow a high temporal flow rate of molten glue to be obtained and simultaneously limit the overall dimensions and the weight of the device.
  • It is a further object of the present invention to provide an automatic glueing system comprising a structure and at least one device for melting and dispensing hot melt glue interchangeably mounted to the structure, in which such a system is capable of dispensing a large amount of molten glue while being easily reconfigurable.
  • the provision of a plurality of wire feeding units connected to a single melter body allows a plurality of molten hot melt glue wires to be introduced into the dispenser device, thereby increasing the flow rate of molten glue at the output, keeping the overall dimensions of the device extremely small, so it can be quickly mounted to a structure of an automatic system or so as to easily change the configuration of such a system.
  • the provision of a single melter body for more than one wire feeding unit further allows the overall heat exchange surface between the melter body and the incoming solid glue wires to be increased, with equal thermal power generated.
  • an optimized use of the thermal energy is achieved without requiring a substantial increase in the overall dimensions of the melter body.
  • the provision of a plurality of wire feeding units connected to a single melter body allows even further significant advantages to be achieved, such as for example the possibility to simultaneously dispense different types of molten glue separated from one another, in the case of separate passages of the melter body, or the possibility of dispensing a mixture of different glues, hot-mixed inside the melter body, in the case of incident or communicating melter body passages.
  • a dispenser device for melting hot melt solid glue as a wire (30, 130) and dispensing molten glue starting from said hot melt solid glue as a wire according to the invention is globally designated by reference numeral 1.
  • the dispenser device 1 comprises a first wire feeding unit 100 and at least one further wire feeding unit 200, a single melter body 20 connected to all the wire feeding units 100, 200 for melting the hot melt glue as a wire when said glue passes therethrough, at least one dispensing nozzle 70 for molten glue associated with, for example secured to, a melter body outlet 23, at least one opening/closure valve 90 for allowing or preventing the flow of molten glue through the at least one melter body outlet 23, for example through the dispensing nozzle 70.
  • the first wire feeding unit 100 comprises a first dragging mechanism 40 comprising an inner passage 47, 48 having an inlet 41 and an outlet 42 for a first solid glue wire 30, dragging members 43, 44 arranged to drag said first solid glue wire 30 from said inlet 41 to said outlet 42 through said inner passage 47, 48 applying a dragging force to said first solid glue wire 30.
  • a first dragging mechanism 40 comprising an inner passage 47, 48 having an inlet 41 and an outlet 42 for a first solid glue wire 30, dragging members 43, 44 arranged to drag said first solid glue wire 30 from said inlet 41 to said outlet 42 through said inner passage 47, 48 applying a dragging force to said first solid glue wire 30.
  • the dragging members 43, 44 are a pair of rollers comprising a driving roller 44 and a driven roller 43 arranged with rotation axes 38, 39 parallel to each other and operatively pressing one against the other in a direction orthogonal to such rotation axes 38, 39.
  • the pair of rollers 43, 44 is adapted to operatively receive the first solid glue wire 30 interposed between the driving roller 44 and the driven roller 43 to drag said first solid glue wire 30 through the rotation of said pair of rollers.
  • the dragging mechanism 40 comprises a motor 75, for example a gear-motor comprising a motor 75 and a reduction gear 76, having a rotary shaft 77 mechanically connected to the driving roller 44 so as to bring it into rotation.
  • Motor 75 is for example an electric motor, for example a brushless motor, or for example a three-phase motor.
  • motor 75 may be a pneumatic or hydraulic motor.
  • motor 75 is mounted with its shaft arranged in a direction substantially orthogonal to the rotation axis 39 of the driving roller. Thereby, the transverse dimension of the dispenser device remains contained.
  • the driving roller 44 comprises a driving wheel 44' coaxial to and integral with the driving roller 44
  • the driven roller 43 comprises a driven wheel 43' integral to and coaxial with the driven roller 43
  • the driving wheel 44' and the driven wheel 43' are configured and arranged so that the driving wheel 44' transmits the motion to the driven wheel 43'
  • the driving wheel 44' and the driven wheel 43' are toothed wheels configured so as to transmit the motion even if the distance between the rotation axes varies slightly.
  • both the driving roller 44 and the driven roller 43 have a shaped profile 44", 43" so as to transmit a sufficient static friction force to the interposed solid glue wire 30 to drag such a solid glue wire 30, for example such a shaped profile 44", 43" has a concave section towards the exterior, such as semicircular.
  • the dragging mechanism 40 comprises an inlet guiding member 45 having an inner conduit 47 adapted to be crossed by the solid glue wire 30, in which such an inner conduit 47 goes from the inlet 41 of the dragging mechanism to an outlet end portion 49' arranged close to the pair of rollers 43, 44 so as to drive the solid glue wire 30 in a guided fashion in inlet to said pair of rollers 43, 44.
  • the inner conduit 47 forms a part of the inner passage 47, 48 of the dragging mechanism 40.
  • the dragging mechanism 40 comprises an outlet guiding member 46 having an inner conduit 48, adapted to be crossed by said solid glue wire 30, where such an inner conduit 48 goes from an end portion 49" arranged close to said pair of rollers 43, 44 so as to receive said solid glue wire 30 coming out of said pair of rollers 43, 44, up to outlet 42 of the dragging mechanism 40.
  • the inner conduit 48 forms a part of the inner passage 47, 48 of the dragging mechanism 40.
  • the inlet guiding member 45 and/or the outlet guiding member 46 are configured so as to accurately drive the solid glue wire 30 between the driving 44 and driven 43 rollers, in particular at the shaped profiles 44", 43".
  • the dragging mechanism 40 comprises a controller 80 of force exerted between the driving roller 44 and the driven roller 43.
  • Controller 80 comprises, for example, means for changing the distance between axes 38, 39 of the driving roller 44 and of the driven roller 43.
  • the means for changing the distance comprise a roller holding member 37, rotatably supporting one between the driving roller 44 and the driven roller 43, wherein the roller holding member 37 is hinged, in a first end thereof, to a fixed base 81 of the dragging mechanism 40, about a hinge axis 36 substantially parallel to axes 38, 39 of the driving roller 44 and of the driven roller 43.
  • the means for changing the distance comprise an adjustment knob 82 rotatable about an axis 83 substantially orthogonal to the hinge axis 36 and substantially parallel to a plane passing through axes 38, 39 of the driving roller 44 and of the driven roller 43, so that by tightening or loosening the adjustment knob 82 the distance between axes 38, 39 of the driving roller 44 and of the driven roller 43 is reduced or increased, respectively.
  • a different type of dragging mechanism 40 may be provided, for example comprising a linear actuator, not shown in the figures, for dragging the solid glue wire according to a reciprocating motion.
  • the first feeding unit 100 further comprises a first connection member 60 having a tubular shape defining an inner passage 66 for said first solid glue wire 30 and having a first end 61 connected to said outlet 42 of said first dragging mechanism 40 and a second end 62 opposite said first end 61, said inner passage 66 of first tubular member being aligned with said inner passage 47, 48 of first dragging mechanism, said first connection member 60 being made of a thermally insulating material.
  • connection member 60 has a length, measured along the inner passage 66, substantially in the range from 20 mm to 300 mm, in particular in the range from 30 mm to 150 mm, particularly substantially equal to 80 mm.
  • connection member 60 has high stiffness features.
  • the inner passage 66 of the connection member 60 is rectilinear or substantially rectilinear.
  • connection member 60 is made of Teflon or of a ceramic material.
  • connection member 60 is connected to the dragging mechanism 40 by means of a bush 63.
  • the bush 63 comprises a cup-shaped portion adapted to accommodate a corresponding end 61 of the connection member 60 therein.
  • the bush 63 may include a threaded portion adapted to engage in a threaded hole at the outlet 42 of the dragging mechanism, respectively.
  • the bush 63 includes a central through hole 63' connecting the inner passage 48 of the dragging mechanism 40 and the inner passage 66 of the connection member 60 by shape continuity.
  • the inner diameter of the inner passage 47, 48 of the dragging mechanism 40 is substantially equal to the inner diameter of the inner conduit 66.
  • the bush 63 forms a seal between the connection member 60 and the dragging mechanism 40.
  • the at least one further wire feeding unit 200 comprises a further dragging mechanism 140 comprising an inner passage 147, 148 having an inlet 141 and an outlet 142 for a further solid glue wire 130, dragging members 143, 144 arranged to drag said further solid glue wire 130 from said inlet 141 to said outlet 142 through said inner passage 147, 148 applying a dragging force to said further solid glue wire 130.
  • the at least one further wire feeding unit comprises a further connection member 160 which is tubular in shape defining an inner passage 166 for said further solid glue wire 130 and having a first end 161 connected to said outlet 142 of said further dragging mechanism 140 and a second end 162 opposite said first end 161, said inner passage 166 of further connection member 160 being aligned with said inner passage 147, 148 of said further dragging mechanism 140, said further connection member 160 being made of a thermally insulating material.
  • the at least one further wire feeding unit comprises actuation means 275 associated with said further dragging mechanism 140 to actuate said dragging members 143, 144 of said further dragging mechanism 140. Examples of such actuation means shall be described hereinafter.
  • the at least one further wire feeding unit 200 is substantially identical to said first wire feeding unit 100, for example, arranged side by side with said first feeding unit 100.
  • the melter body 20 has a first inlet 21 for said first solid glue wire 30 and at least one second inlet 121 for said at least one further solid glue wire 130, said first inlet 21 being connected to said second end 62 of said first connection member 30, and said at least one second inlet 121 being connected to said second end 162 of a corresponding second connection member 160, said melter body 20 having at least one melter body outlet 23 for molten glue, a first inner passage 22 connecting said first melter body inlet 21 to said at least one melter body outlet 23, at least one further inner passage 122 connecting said at least one further melter body inlet 121 to said at least one melter body outlet 23.
  • the melter body 20 comprises heating members to melt the first solid glue wire 30 and the at least one further solid glue wire 130 along said first inner passage 22 of the melter body and said at least one further passage 122 of the melter body.
  • the dispenser device comprises at least one dispensing nozzle 70 for molten glue associated with, for example secured to, said at least one melter body outlet 23.
  • the dispenser device comprises at least one opening/closure valve 90 comprising an occlusion member 91 movable between a first position in which the occlusion member 91 allows the molten glue to flow through said at least one outlet 23 of the melter body, and a second position in which the occlusion member 91 prevents the molten glue from flowing through said at least one outlet 23 of the melter body, driven actuation means 92 to actuate said valve.
  • the inner passage 47, 48 of the first dragging mechanism 40 and the inner passage 66 of the first connection member 60 form a continuous conduit extending along a first substantially straight extension line L.
  • the inner passage 147, 148 of the at least one further dragging mechanism 140 and the inner passage 166 of the at least one further connection member 160 form a corresponding continuous conduit extending along at least one further substantially straight extension line L'.
  • said first extension line L and said at least one further extension line L' are substantially mutually parallel.
  • the melter body 20 has a main extension direction R substantially parallel to the first extension line L, said melter body 20 defining a rear end face 27 transversal to said first extension line L and comprising said first melter body inlet 21 and said at least one further melter body inlet 121.
  • the melter body 20 further defines a front end face 28 opposite said rear end face 27 comprising said at least one melter body outlet 23.
  • the dispenser device 1 comprises a temperature sensor in thermal contact with the melter body 20 to detect the temperature of the inner passage 22 and/or of the at least one further inner passage 121 of the melter body 20.
  • said at least one opening/closure valve 90 is a pin valve mounted to the melter body 20, in which the movable occlusion member 91 is a pin member extending along a substantially straight pin line S.
  • the first inner passage 22 of the melter body and/or the at least one further inner passage 122 of the melter body extend along corresponding melter body passage lines (C, C').
  • the pin line S is oblique with respect to said melter body passage lines C, C' and incident to said melter body passage lines C, C', for example at said at least one melter body outlet 23.
  • said melter body passage lines C, C' are straight lines.
  • the dispenser device 1 comprises a single further wire feeding unit 200, in addition to the first wire feeding unit 100, in which the first inner passage 22 of the melter body and the further inner passage 122 of the melter body extend along two respective melter body passage lines C, C', straight and mutually inclined by a predetermined angle CA, for example the predetermined angle is in the range from 3° to 15°.
  • the pin line S may be, for example, inclined with respect to a plane passing by said melter body passage lines C, C' according to a predetermined angle SA, for example said predetermined angle SA being in the range from 5° to 35°.
  • the first extension line L, the second extension line L', the melter body passage lines C, C' and the main melter body extension line R belong to a same plane.
  • said dispensing nozzle 70 defines an inner nozzle hole 71 extending along said pin line S.
  • the inner nozzle hole 71 is adapted to slidably receive a free end of the movable occlusion member 91 to allow/prevent the flow of liquid glue through nozzle 70.
  • the actuation means 275 associated with said further dragging mechanism 140 comprise a mechanical motion transmission 149 to transmit the motion from the first motor 75 associated with the first dragging mechanism 40 to the at least one further dragging mechanism 140.
  • the mechanical transmission 149 is interposed between the first dragging mechanism 40 and the at least a one further dragging mechanism 140. Thereby, the mechanical transmission 149 transmits the motion from the first dragging mechanism 40 to the further dragging mechanism 140.
  • the dispenser device comprises a single further wire feeding unit 200 in addition to the first wire feeding unit 100, the first dragging mechanism 40 and the further dragging mechanism 140 are substantially equal and mounted facing each other.
  • the further dragging mechanism 140 may comprise a driving roller 143 arranged coaxial to the driving roller 43 of the first dragging mechanism 40, and the mechanical transmission of motion 149 may comprise a mechanical fitting, such as a shaft-hub coupling, or a flanged joint.
  • the use of a single motor 75 for actuating all the dragging devices 40, 140 has the advantage of limiting the driving power required compared to the use of more than one motor.
  • the dispenser device since the dispenser device is adapted to receive more than one hot melt glue wire simultaneously, at the same feeding rate and diameters of the wires, the hourly flow rate of molten glue increases as a multiple of the flow rate achieved with single wire. Therefore, a flow rate which is still high while reducing the rotation speed of the motor may be achieved, thus limiting the power consumption.
  • the concurrent melting of the wires in the melter body reduces the mechanical resistance to the feeding of the wires and thereby the mechanical resistance on the motor shaft.
  • the actuation means 275 comprise a further motor 175 associated with a respective further dragging mechanism 140.
  • each dragging mechanism 40, 140 can be actuated independently of the others, such as by adjusting the wire feeding rate differently or selectively.
  • This aspect is highly advantageous, mainly for the following two reasons.
  • a first advantage is the fact that the possibility of independently adjusting the wire feeding rate of the dragging mechanisms powers allows hot melt glue wires having different physical features to be fed simultaneously and melted with the same melter body of the same dispenser device.
  • melter body 20 has a separate outlet for each wire feeding unit 100, 200, it allows different types of molten glue adapted to different glueing processes to be dispensed simultaneously.
  • the first solid glue wire 30 and the at least one further solid glue wire 130 are hot-mixed during the crossing of the melter body, forming a molten glue which is the mixture of the hot melt glue of the first solid glue wire 30 and of the at least a second solid glue wire 130.
  • the above mixing may be made at a controlled temperature.
  • a wire of a hot melt chemical additive may be provided, to be molten and mixed with the other glue wires in its passage within the melter body 20.
  • the dispenser device 1 comprises an electrical connector for electrically connecting the dispenser device 1 to an external power source and/or to an external control unit, to electrically power and/or control at least one of the following devices:
  • the first motor 75 comprises means to adjust the rotation speed of the motor itself, such as an electronic inverter.
  • the dispenser device 1 comprises a control unit functionally connected to said means to adjust the rotation speed of motor 75 and to said temperature sensor 73, said control unit being configured to adjust the feeding speed of the solid glue wire 30 according to the temperature of the melter body.
  • control unit is mounted on board of said dispenser device.
  • control unit is implemented on an external machine to which the dispenser device is mounted.
  • the dispenser device comprises one or more connectors to interface with such an external machine.
  • the dispenser device 1 comprises a first connection bracket 10 to connect the first dragging mechanism 40 and the melter body 20 configured so that the outlet 42 of the first dragging mechanism 40 faces and in particular is aligned to the first melter body inlet 21.
  • the dispenser device 1 comprises at least one further connection bracket 110 to connect the at least one further dragging mechanism 140 and the melter body 20.
  • the first connection bracket and/or the second connection bracket are flat metal plates.
  • the dragging mechanism 40 and the melter body 20 are rigidly connected together through the first connection bracket 10.
  • the first connection bracket 10 supports the first dragging mechanism 40 and the melter body 20 at a predetermined distance between them, for example in the range from 20 mm to 300 mm, in particular in the range from 30 mm to 150 mm, in particular substantially equal to 80 mm. It was found that such distances prevent such an amount of heat from being transmitted, between the melter body 20 and the first dragging mechanism 40, to soften or melt the solid glue wire 30 before it reaches the melter body 20.
  • the dispenser device 1 comprises a mounting portion 11 to secure said dispenser device 1 to a structure of an automatic glueing system.
  • said first connection bracket 10 comprises said mounting portion 11.
  • said mounting portion 11 comprises at least one through hole 12, for example to receive a pin or a screw.
  • the first wire feeding unit 100 comprises a first reel-holder device 83 adapted to accommodate a coil of said first solid glue wire 30.
  • the at least one further wire feeding unit 200 comprises a further reel-holder device 183 adapted to accommodate a coil of said at least one further solid glue wire 130.
  • said first reel-holder device 83 is secured to said first wire feeding unit 100 through a rigid arm 84.
  • said further reel-holder device 183 is secured to said first wire feeding unit 100 through said rigid arm 84.
  • said first reel-holder device 83 and said at least one further reel-holder device 183 are rotatably supported by a rigid arm 84 secured to said first connection bracket 10.
  • dispenser device 1 allows the dispenser device 1 to be implemented as a single self-contained block, which is structurally compact and solid, easily mountable to the structure of a glueing system and simultaneously easily removable, for example to reconfigure the glueing system for a new process.
  • such a dispenser device may be seen as a glueing module for an automatic glueing system.
  • said at least one further wire feeding unit 140 is a single further wire feeding unit 140, in which said at least one further melter body inlet 142 is a single further melter body inlet 142, in which said at least one melter body outlet 23 is a single melter body outlet 23, and in which said opening/closure valve 90 is a single opening/closure valve 90.
  • the first dragging mechanism 40 is arranged facing said single further dragging mechanism 40, for example by being kinematically mutually engaged.
  • An automatic glueing system 300 to apply molten hot melt glue to a piece to be glued 313 is described herein, comprising:
  • control unit 318 is configured to drive said first motor 75, or said first motor 75 and said at least one further motor, said heating members and said at least one opening/closure valve 90.
  • the automatic glueing system 300 comprises a connector, for example secured to said support structure 303, for example of electrical type, adapted to be removably connected to a corresponding connector secured to said at least one dispenser device 1.
  • the automatic glueing system is a system for producing a filter 313, for example for filtering a fluid flow when such a fluid passes therethrough.
  • the automatic glueing system 300 comprises a pleating machine 319.
  • One end of a filtering media tape 330 is dragged on a piece holder 317 along a feeding direction 316, while a motorized marker roller 320 provides a folding line on the filtering media transversely to the feeding direction of the filtering media 316.
  • a dragging roller 321 may be provided downstream of the motorized marker roller 320.
  • a pair of fold forming screws 323 may be provided downstream of the motorized marker roller 320, adapted to provide the folding itself in order to obtain the pleated filter media 213.
  • the at least one dispenser device 1 is mounted downstream of the forming screws 323, for example to arrange molten glue on the ridges of the pleated media 213 in the feeding direction 316 of the pleated media 313.
  • the automatic glueing system 300 comprises two dispenser devices 1, for example they are slidably constrained to the system in a direction transverse to the feeding direction 316 of the pleated media.
  • the dispenser device 1 according to the present invention may be mounted to any support structure, for example made of modular components assembled together to form any desired configuration.
  • the dispenser device 1 as an alternative to the use to stabilize the ridges of filtering media, may be used for many other applications, such as paper glueing, for example by locating the glue distribution at the edges to be glued.

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Claims (10)

  1. Spendevorrichtung (1) zum Schmelzen von heißschmelzendem Festklebstoff als Draht (30, 130) und zum Spenden von geschmolzenem Klebstoff, ausgehend von dem heißschmelzendem festen Klebstoff als Draht, welche aufweist:
    A) eine erste Drahtfördereinheit (100), welche aufweist:
    - einen ersten Schleppmechanismus (40), der einen Innenkanal (47, 48) mit einem Einlass (41) und einem Auslass (42) für einen ersten festen Klebstoffdraht (30) aufweist, wobei Schleppelemente (43, 44) angeordnet sind, um den ersten festen Klebstoffdraht (30) von dem Einlass (41) durch den Innenkanal (47, 48) zu dem Auslass (42) zu schleppen, indem auf den ersten festen Klebstoffdraht (30) eine Schleppkraft ausgeübt wird;
    - einen ersten Motor (75), der dem ersten Schleppmechanismus (40) zugeordnet ist, um die Schleppelemente (43, 44) des ersten Schleppmechanismus (40) zu aktivieren;
    - ein erstes rohrförmiges Verbindungselement (60), das die einen Innenkanal (66) mit dem ersten festen Klebstoffdraht (30) definiert, und ein erstes Ende (61), das mit dem Auslass (42) des ersten Schleppmechanismus (40) verbunden ist, sowie ein zweites Ende (62) entgegengesetzt dem ersten Ende (61) aufweist, wobei der Innenkanal (66) des ersten rohrförmigen Elements mit dem Innenkanal (47, 48) des ersten Schleppmechanismus fluchtet, und das erste Verbindungselement (60) aus thermisch isolierendem Material hergestellt ist;
    B) zumindest einen Schmelzerkörper (20) mit einem ersten Einlass (21) für den ersten festen Klebstoffdraht (30), wobei der erste Einlass (21) mit dem zweiten Ende (62) des ersten Verbindungselements (60) verbunden ist, wobei der Schmelzerkörper (20) zumindest einen Auslass des Schmelzerkörpers (23) für geschmolzenen Klebstoff aufweist, wobei ein erster Innenkanal (22) den ersten Schmelzerkörpereinlass (21) mit dem zumindest einen Schmelzerkörperauslass (23) verbindet; wobei der Schmelzerkörper (20) Heizelemente aufweist, um den ersten festen Klebstoffdraht (30) entlang dem ersten Schmelzerkörperinnenkanal (22) zu schmelzen;
    C) zumindest ein Öffnungs-/Schließventil (90), das ein Verschlusselement (91) aufweist, das zwischen einer ersten Position, in der das Verschlusselement (91) den Fluss des geschmolzenen Klebstoffs durch den zumindest einen Schmelzerkörperauslass (23) erlaubt, und einer zweiten Position, in der das Verschlusselement (91) den Fluss des geschmolzenen Klebstoffs durch den zumindest einen Schmelzerkörperauslass (23) verhindert, bewegbar ist, sowie Antriebsaktivierungsmittel (92) zum Aktivieren des Ventils;
    D) zumindest eine Spendedüse (70) für geschmolzenen Klebstoff, die dem zumindest einen Schmelzerkörperauslass (23) zugeordnet ist,
    wobei die Spendevorrichtung (1) dadurch gekennzeichnet ist, dass sie aufweist:
    E) zumindest eine weitere Drahtfördereinheit (200), welche aufweist:
    - einen weiteren Schleppmechanismus (140), der einen Innenkanal (147, 148) mit einem Einlass (141) und einem Auslass (142) für einen weiteren festen Klebstoffdraht (130) aufweist, wobei Schleppelemente (143, 144) angeordnet sind, um den weiteren festen Klebstoffdraht (130) von dem Einlass (141) durch den Innenkanal (147, 148) zu dem Auslass (142) zu schleppen, wobei auf den weiteren festen Klebstoffdraht (130) eine Schleppkraft ausgeübt wird;
    - Aktivierungsmittel (275), die dem weiteren Schleppmechanismus (140) zugeordnet sind, um die Schleppelemente (143, 144) des weiteren Schleppmechanismus (140) zu aktivieren;
    - ein weiteres rohrförmiges Verbindungselement (160), das den Innenkanal (166) für den weiteren festen Klebstoffdraht (130) definiert und ein erstes Ende (161), das mit dem Auslass (142) des weiteren Schleppmechanismus (140) verbunden ist, sowie ein zweites Ende (162) entgegengesetzt dem ersten Ende (161) aufweist, wobei der Innenkanal (166) des weiteren Verbindungselements (160) mit dem Innenkanal (147, 148) des weiteren Schleppmechanismus (140) fluchtet, wobei das weitere Verbindungselement (160) aus thermisch isolierendem Material hergestellt ist;
    wobei der Schmelzerkörper (20) zumindest einen weiteren Einlass (121) für den zumindest einen weiteren festen Klebstoffdraht (130) aufweist, wobei der zumindest eine weitere Einlass (121) mit dem zweiten Ende (162) eines entsprechenden zweiten Verbindungselements (160) verbunden ist, wobei zumindest ein weiterer Innenkanal (122) den zumindest einen weiteren Schmelzerkörpereinlass (121) mit dem zumindest einen Schmelzerkörperauslass (23) verbindet;
    wobei die Heizelemente dazu dienen, auch den zumindest einen weiteren festen Klebstoffdraht (130) entlang dem zumindest einen weiteren Schmelzerkörperkanal (122) zu schmelzen.
  2. Die Spendevorrichtung (1) nach Anspruch 1, wobei der Innenkanal (47, 48) des ersten Schleppmechanismus (40) und der Innenkanal (66) des ersten Verbindungselements (60) eine durchgehende Leitung bilden, die sich entlang einer ersten im Wesentlichen geraden Erstreckungslinie (L) erstreckt, und/oder wobei der Innenkanal (147, 148) des zumindest einen weiteren Schleppmechanismus (140) und der Innenkanal (166) des zumindest einen weiteren Verbindungselements (160) eine entsprechende durchgehende Leitung bilden, die sich entlang zumindest einer weiteren im Wesentlichen geraden Erstreckungslinie (L') erstreckt.
  3. Die Spendevorrichtung (1) nach Anspruch 1 oder 2, wobei die erste Erstreckungsline (L) und die zumindest eine weitere Erstreckungslinie (L') im Wesentlichen zueinander parallel sind.
  4. Die Spendevorrichtung (1) nach einem der vorhergehenden Ansprüche, wobei der Schmelzerkörper (20) eine Haupterstreckungsrichtung (R) im Wesentlichen parallel zur ersten Erstreckungslinie (L) aufweist, wobei der Schmelzerkörper (20) eine hintere Endfläche (27) quer zu der ersten Erstreckungslinie (L) definiert und den ersten Schmelzerkörpereinlass (21) und den zumindest einen weiteren Schmelzerkörpereinlass (121) aufweist, und eine vordere Endfläche (28) entgegengesetzt der hinteren Endfläche (27) den zumindest einen Schmelzerkörperauslass (23) aufweist.
  5. Die Spendevorrichtung (1) nach Anspruch 4, wobei das zumindest eine Öffnungs-/Schließventil (90) ein an dem Schmelzerkörper (20) angebrachtes Nadelventil ist, in dem das bewegbare Verschlusselement (91) ein Nadelelement ist, das sich entlang einer im Wesentlichen geraden Nadellinie (S) erstreckt, in der sich der erste Schmelzerkörperinnenkanal (22) und/oder der zumindest eine weitere Schmelzerkörperinnenkanal (122) entlang entsprechenden Schmelzerkörperkanallinien (C, C') erstreckt, und in der die Nadellinie (S) schräg zu den Schmelzkörperkanallinien (C, C') ist, und auf die Schmelzerkörperkanallinien (C, C') fällt, z.B. an dem zumindest einen Schmelzerkörperauslass (23).
  6. Die Spendevorrichtung (1) nach Anspruch 5, wobei der Schmelzerkörper (20) zumindest ein inneres Durchgangsloch (97) aufweist, das sich entlang der Nadellinie (S) erstreckt, wobei das zumindest eine Durchgangsloch (97) darin das Nadelelement (91) verschiebbar aufnimmt, wobei das zumindest eine Durchgangsloch (97) ein erstes Ende (98), an dem das Nadelventil (90) gesichert ist, sowie ein entgegengesetztes Ende (99), an dem die Düse (70) gesichert ist, aufweist.
  7. Die Spendevorrichtung (1) nach einem oder mehreren vorhergehenden Ansprüchen, wobei die dem weiteren Schleppmechanismus (140) zugeordneten Aktivierungsmittel (275) aufweisen:
    - ein mechanisches Bewegungsgetriebe (149), um die Bewegung vom dem ersten Schleppmechanismus (40) zugeordneten ersten Motor (75) auf den zumindest einen weiteren Schleppmechanismus (140) zu übertragen; oder
    - einen weiteren Motor (175), der einem entsprechenden weiteren Schleppmechanismus (140) zugeordnet ist.
  8. Die Spendevorrichtung (1) nach einem oder mehreren vorhergehenden Ansprüchen, die einen ersten Verbindungsträger (10) aufweist, um den ersten Schleppmechanismus (40) mit dem Schmelzerkörper (20) derart zu verbinden, dass der Auslass (42) des ersten Schleppmechanismus (40) zu dem ersten Schmelzerkörpereinlass (21) weist und damit flutet, und/oder einen Halterungsabschnitt (11) aufweist, um die Spendervorrichtung (1) an einer Struktur eines automatischen Verklebungssystems zu sichern.
  9. Die Spendevorrichtung (1) nach zumindest einem vorhergehenden Anspruch, wobei die zumindest eine weiter Drahtfördereinheit (140) eine einzelne weitere Drahtfördereinheit (140) ist, in der der zumindest eine weitere Schmelzerkörpereinlass (142) ein einzelner weiterer Schmelzerkörpereinlass (142) ist, wobei der zumindest eine Schmelzerkörperauslass (23) ein einzelner Schmelzerkörperauslass (23) ist, und wobei das Öffnungs-/Schließventil (90) ein einzelnes Öffnungs-/Schließventil (90) ist.
  10. Automatisches Klebesystem (300) zum Auftragen von geschmolzenen Heißschmelzklebstoff auf ein zu klebendes Stück (313), welches aufweist:
    - zumindest eine Spendevorrichtung (1) nach einem oder mehreren vorhergehenden Ansprüchen;
    - ein Stückhalter (317) zum Tragen des zu klebenden Stücks;
    - Bewegungsmittel (307) zum Erhalt einer Bewegung zwischen dem zu klebenden Stück und der zumindest einen Spendevorrichtung (1);
    - eine Tragstruktur (303) zum Tragen der zumindest einen Spendevorrichtung (1);
    - eine Verbindungsvorrichtung (304) zum bewegbaren Sichern der zumindest einen Spendevorrichtung (1) an der Tragstruktur (303);
    - eine Steuereinheit (318) zum Antreiben und Steuern der zumindest einen Spendevorrichtung (1).
EP16153185.0A 2015-02-23 2016-01-28 Spendervorrichtung zum schmelzen und austragen von hot melt kleber für automatische klebesysteme, und automatische klebesystem mit diser spendervorrichtung Active EP3059018B1 (de)

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CN108672219A (zh) * 2018-07-27 2018-10-19 深圳市鑫万福珠宝首饰有限公司 一种珠宝加工用上胶装置
CN109317361B (zh) * 2018-11-14 2024-02-20 广东沃德精密科技股份有限公司 自动组装设备
CN113118782B (zh) * 2021-03-26 2024-07-19 东莞市泰伟实业有限公司 一种自动折边多工序自动加工设备
FR3126322A1 (fr) * 2021-08-24 2023-03-03 Gaztransport Et Technigaz Dispositif d’encollage pour système automatisé d’application de bande pour l’étanchéité d’une membrane de cuve
CN117101967B (zh) * 2023-10-23 2023-12-26 江苏中鲲智能装备有限公司 一种点胶机用的点胶针头

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US4804110A (en) * 1986-01-08 1989-02-14 Charles R. Sperry Apparatus, method and article for applying a melted adhesive
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