CN110997161B - Hot glue sticking equipment with hot glue pen - Google Patents
Hot glue sticking equipment with hot glue pen Download PDFInfo
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- CN110997161B CN110997161B CN201880048555.XA CN201880048555A CN110997161B CN 110997161 B CN110997161 B CN 110997161B CN 201880048555 A CN201880048555 A CN 201880048555A CN 110997161 B CN110997161 B CN 110997161B
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- 239000004831 Hot glue Substances 0.000 title claims abstract description 133
- 238000010438 heat treatment Methods 0.000 claims abstract description 148
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 24
- 230000006698 induction Effects 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims description 84
- 230000006854 communication Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 239000004836 Glue Stick Substances 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000011664 signaling Effects 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 claims 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
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- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
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- 101000579646 Penaeus vannamei Penaeidin-1 Proteins 0.000 description 1
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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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
- 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
- B05C17/00546—Details of the heating means
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
- B43M11/00—Hand or desk devices of the office or personal type for applying liquid, other than ink, by contact to surfaces, e.g. for applying adhesive
- B43M11/06—Hand-held devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- General Induction Heating (AREA)
Abstract
The invention relates to a hot gluing device (100) having at least one hot glue pen (110, 150, 152) of the cordless mobile type for handling hot glue sticks (112, 158, 160) and an external electrical heating station (200), wherein the heating station (200) has a holding device (202) having an induction heater (210) for at least partially contactlessly heating the hot glue pen (110, 150, 152) that can be at least partially accommodated in the holding device (202).
Description
Technical Field
The invention relates to a hot-gluing device comprising at least one wireless mobile hot-glue pen for handling hot-glue sticks and an external electrical heating station.
Background
The prior art discloses pen-shaped heat gluing devices for handling heat glue sticks. In such a pen-shaped hot-glue device, a generally cylindrical hot-glue stick or hot-glue cartridge, which is required for operation, is pushed into a generally resistively heated melting chamber of the respective hot-glue pen and melted therein in sections. In addition, wired and wireless hot glue pens are disclosed, wherein the latter would enable more convenient work.
DE 1779467 discloses a cordless, hand-held applicator for thermoplastic adhesives or glues. This cordless, hand-held applicator has a portable application element and a generally fixed position heating element. The coating element is formed by an elongated barrel which delimits a substantially cylindrical chamber for receiving a predetermined amount of solid, thermoplastic adhesive or glue material. The heating insert of the stationary heating element has a continuous conical bore which passes through the base plate and is designed to receive the heat conducting head of the portable application element. The heating insert in the stationary heating element is supplied with heat by means of an electrical heating resistor, which is transferred in a thermally conductive manner to the heat-conducting head of the portable application element.
Disclosure of Invention
The invention relates to a hot-gluing device comprising at least one wireless, mobile hot-glue pen for handling hot-glue sticks and an external electrical heating station, wherein the heating station comprises a holding device having an induction heater for at least partially contactless heating of the hot-glue pen that can be accommodated at least in sections in the holding device.
The invention thus enables energy-saving, wireless operation of a plurality of different types or types of hot glue pens at only one heating station. In the context of the present description, different kinds of hotgel pens are understood, for example, as hotgel pens provided with hotgel sticks having different colors, having different adhesive material properties and/or having different fillings.
Preferably, the hot glue pen has a pen-shaped pen housing with a supply section for a hot glue stick and a holding section for a user-side grip, wherein the holding section can be accommodated coaxially with an annular gap in a receiving well of a holding device of the heating station. This makes it possible to work easily and with a mobile, cordless hot glue pen.
Preferably, a centering section is formed between the feed section and the holding section of the pen housing, which centering section can be received in a form-fitting manner in the receiving shaft, wherein a shoulder is formed between the feed section and the centering section, which shoulder is provided for abutting against an end face of a holding device of the heating station. The spatial orientation of the hot glue stick inserted into the heating station as intended is thus defined in a precise and reliably reproducible manner in the radial and axial directions. This is particularly important for the efficiency of the induction heater and for the reliable and unambiguous contactless identification of different types of hotgel pens, for example, equipped with different hotgel sticks or hotgel cartridges. The outer diameter of the supply section is preferably dimensioned here at least slightly larger than the outer diameter of the centering section, which in turn is preferably dimensioned at least slightly larger than the outer diameter of the holding section.
According to a preferred embodiment, the heating station has a base plate with a storage area for a predetermined number of hot-glue pens, the longitudinal center axis of the receiving shaft of the holding device of the heating station extending at an angle to the base plate. Thereby, a plurality of different hot glue pens can be arranged and provided in a convenient manner at any time for the user.
Preferably, the induction heater comprises at least one first heating winding for melting a hot glue stick. This ensures a rapid, energy-saving melting of the hot glue stick on the end side.
Preferably, the induction heater comprises a second heating winding for preheating the hot glue stick. The time required for liquefying the hot glue stick in sections can be significantly reduced by heating or preheating the hot glue stick to a predetermined softening temperature, which is preferably lower than the melting temperature of the hot glue stick concerned. Alternatively, instead of a separate second heating winding, an inhomogeneous heating winding can be provided, which, due to the flux density varying with the location, allows the generation of a temperature profile which differs in sections.
Preferably, at least one first detector winding is arranged in the region of the insertion section of the holding device of the heating station. In particular, this enables an empty detection of the receiving shaft, so that at least one heating winding can be switched on automatically, for example, when a hot-glue pen is inserted.
Preferably, at least one second detector winding is arranged in the region of an end section of the receiving shaft of the holding device of the heating station facing away from the insertion section of the holding device. Thus, depending on the correspondingly configured sensor device, any data, for example the current temperature of the respective heating nozzle or preheating sleeve, etc., can be wirelessly transmitted from the hot-glue pen to the heating station. The heating winding and the detector winding are preferably arranged on a required winding carrier which, after the winding process, can be pushed axially into a substantially hollow-cylindrical holding device of the heating station and can be latched with the holding device.
Preferably, a metallic heating nozzle is arranged in the region of the nozzle section of the pen housing. By means of the heating nozzle made of a metal with good electrical conductivity, the hot glue pen can be inductively heated with particularly low losses, i.e. energy-saving, in cooperation with the first heating winding. The pen housing of the hot glue pen is preferably made of a thermally well-insulated plastic.
According to one specific embodiment, a metallic preheating sleeve is arranged in the region of the holding section of the pen housing. In this way, if necessary, an effective preheating or preheating of the hot glue stick can be achieved in cooperation with the second heating winding, which preheating or preheating in particular allows the operating time of the hot glue pens which are completely heated in the heating station to be increased.
In one embodiment, at least one coding element is arranged in the pen housing, wherein at least two different types of hot glue sticks can be unambiguously identified and the presence of non-compliant foreign bodies can be reliably detected by means of the coding element and the first detector winding. At least the identification of different types or kinds of hotmelt sticks, the detection of an empty space in the receiving shaft and the detection of possible non-compliant foreign bodies in the receiving shaft (e.g. screwdriver blades, screws, drills, wires, etc.) can be achieved on the basis of the coding element, which is preferably formed from a metallic material.
Preferably, the heating station has a first controller. The control and regulation process can thus be run automatically in the hot-gluing device.
Preferably, the thermal gel pen has at least one temperature sensor and/or at least one AM communication unit for contactless communication with the first controller. In this way, for example, the current temperature of the preheating jacket and of the heating nozzle can be wirelessly transmitted to the control of the heating station. In this case, the necessary data are preferably transmitted in an amplitude-modulated manner (AM communication unit). Alternatively, a hot-glue pen with a temperature sensor or a hot-glue pen with a temperature sensor and with an AM communication unit can be used at the heating station.
Preferably, the hot glue pen has a second controller which can be supplied with electrical energy contactlessly by the heating station. Thus, the energy supply of a second controller integrated into the hot-glue pen, which simultaneously feeds the temperature sensor with electrical energy, is ensured.
Preferably, the heating station has at least one optical and/or at least one acoustic signal unit. This makes it possible to inform the user of the operational readiness of the heating station, the operational readiness of the hot glue pen inserted into the holder, the standby state reached, the current temperature of the hot glue pen, error information, and the like. The acoustic signaling unit enables particularly convenient guidance of the user by outputting speech by means of the first control unit, since no line-of-sight contact is required. In addition, a distinctive acoustic warning signal can be output by means of an acoustic signal unit if metal objects or non-compliant foreign bodies are present in the holding device of the heating station, which are not authorized for use with the hot-gluing device.
Drawings
The invention is explained in more detail in the following description on the basis of embodiments shown in the drawings.
The figures show:
figure 1 is a perspective view, partially in section, of a thermal gluing device with a wired heating station and a cordless mobile thermal glue pen inserted as prescribed into this heating station,
figure 2 an enlarged partially sectioned perspective view of the thermal gluing device of figure 1 with the heating station and the thermal glue pens inserted as specified in this heating station,
FIG. 3 is an electrical wiring schematic of the thermal adhesive device of FIG. 2 having a heating winding and first and second detector windings, an
Fig. 4 is a schematic diagram of a temperature-dependent curve of the tank quality of the second detector winding of fig. 3.
Detailed Description
Fig. 1 shows a thermal gluing device 100 with an electrical heating station 200. The hot glue device has at least one holding device 202, into which the first, for example wireless, mobile hot glue pen 110 is inserted or guided. Illustratively, the hot glue pen 110 is equipped with a first type of hot glue stick 112 or glue bullet. The first hot-melt adhesive stick 112 can be formed, for example, using a conventional hot-melt adhesive which has a solid consistency at room temperature and changes from the solid state to a viscous, pasty state capable of adhesive action when a processing temperature in the range of, for example, 160 ℃ up to 200 ℃ is reached. Preferably, after the treatment temperature has been reached, the hot melt adhesive or the molten plastic remains processable for a period of time of 5 to 90 seconds, even without further heat supply.
The holding device 202 of the heating station 200 is preferably arranged on a base plate 204, which has a storage area 206 on the side. In this case, only two further hot- glue pens 150, 152, which are not currently required by the user, are stored on the storage area 206 by way of example in the groove-shaped longitudinal recesses 154, 156, which are associated with these hot-glue pens, respectively. The second thermal paste pen 150 is illustratively equipped with a second type of thermal paste stick 158 and the thermal paste pen 152 is equipped with a third type of thermal paste stick 160.
The three hot-melt adhesive sticks 112, 158, 160 are preferably formed with different types of hot-melt adhesives, special waxes, or the like, in respectively different colors, light transmission levels, melting temperatures, strengths, and the like. In addition, different solid and/or filler particles (e.g., glitter particles, crystallites, metal foil particles, etc.) can be embedded into the hot glue sticks 112, 158, 160. What is thus possible is: the user can use a plurality of hot glue pens 110, 150, 152 quickly and flexibly during operation and in a manner that is individually adapted to the specific requirements of the workpiece.
According to the invention, the heating station 200 has a contactless electric induction heater 210 for heating the hot glue pen 110 inserted into the holding device 202 at least partially without contact. Since the heating station 200 is constructed separately and independently from the thermal paste pens 110, it is also referred to as an "external" heating station.
Compared to conventional resistance heating elements, the induction heater 210 enables a shorter heating phase, targeted heating and significantly increased efficiency while achieving excellent control dynamics. In addition, different heating zones can be provided in a simple manner by means of an inhomogeneous magnetic field, for example to preheat and melt the hotmelt bars 112, 158, 160. In addition to this, the induction heater 210 makes it possible to achieve a particularly compact pen-like structural shape of the hot glue pens 110, 150, 152, but the pen housing of the hot glue pens can nevertheless be well insulated or encapsulated in order to exclude in particular the risk of burns for the user (so-called "cold touch" hot glue pens). In addition to this, the hot- glue pens 110, 150, 152 have a structurally comparatively simple and cost-effective construction, so that the hot-glue device 100 enables a parallel use of a plurality of hot- glue pens 110, 150, 152, which are preferably equipped with hot- glue sticks 112, 158, 160 composed of different hot-melt glues.
The first hot glue pen 110 preferably has an at least substantially rod-shaped pen housing 114 with a hollow-cylindrical supply section 116 for the hot glue stick 112 and a holding section 118 adjoining the supply section in the axial direction for gripping by a user. The holding section 118 can be accommodated with the narrow annular gap 120 in the accommodating shaft 122 of the holding device 202 of the heating station 200. Between the substantially hollow-cylindrical supply section 116 and the likewise hollow-cylindrical holding section 118, a likewise approximately hollow-cylindrical centering section 124 is formed on the pen housing 114, which centering section can be at least partially received in a form-fitting manner in the receiving shaft 122. Between the larger-diameter supply section 116 and the smaller-diameter centering section 124, the pen housing 114 has a circumferential, slightly conical (annular) shoulder 126, which, in the inserted state of the hot-glue pen 110 shown here, at least partially bears against the end face 128 of the holding device 202 of the heating station 200. The structural design of the pen housing 114 of the first thermal gel pen 110 corresponds exactly to the structural design of the pen housings of the two further thermal gel pens 150, 152, which are not shown for the sake of clarity. The central longitudinal axis 130 of the receiving well 122 of the holding device 202 extends obliquely with respect to the base plate 204, so that the user can replace the hot glue pens 110, 150, 152 in an ergonomic manner.
The axial feed of the glue sticks 112, 158, 160 can be achieved, for example, by pressing the free ends of the glue sticks 112, 158, 160, which are not shown for the sake of clarity, into the supply section 116 of the glue pen 110 and the remaining supply sections of the glue pens 150, 152, which are not shown, on the user side. Alternatively, a mechanical feed device familiar to the person skilled in the art can be provided, which can be actuated in the respective holding sections of the three hotgel pens 110, 150, 152 by means of at least one finger of the user. Furthermore, a first electronic control unit 270, which is preferably implemented using a microcontroller 272, is integrated in the heating station 200. The heating station 200 is supplied with electrical energy, for example, by means of an electrical socket 274, via which, if necessary, a bidirectional data exchange between the controller 270 and an external computing unit (for example, a PC, tablet or smartphone) can simultaneously be effected. Receptacle 274 can be configured to receive, for example, an USB2.0B-type plug, so that a widely used smartphone charger can be used to power station 200. Alternatively, the heating station 200 can also be designed for wireless or network-independent operation, which is achieved, for example, with batteries and/or dry cells integrated into the base plate 204. In the simplest configuration, the heating station 200 is supplied with the electrical energy required for operation directly by means of a not-shown cable plugged into the socket 274 and by means of a possibly not-shown power grid component provided specifically for the heating station 200.
Here, the induction heater 210 exemplarily includes a first heating winding 220 for melting of the end side and a second heating winding 222 for preheating the hot glue stick 112. In particular, the preheating of the hot glue stick 112 by means of the second heating winding 222 increases the service life of the hot glue pen 110 and at the same time reduces the time to reach the ready state of operation. Instead of two electrically separate heating windings 220, 222, it is also possible to use only one unevenly wound heating winding with a winding density that differs in sections for generating an uneven magnetic field. The first heating winding 220 interacts with a metallic heating nozzle 224, which has a substantially hollow-cone shape with a nozzle-like outlet opening 226 on the end side in the region of the cone apex, by means of an alternating magnetic field, while the second heating winding 222 is coupled by means of the alternating magnetic field to a metallic hollow-cylindrical preheating sleeve 228 in such a way that eddy currents are induced in the heating nozzle 224 and the preheating sleeve 226, respectively, by means of the two heating windings 220, 222, which eddy currents lead to a desired defined temperature rise of the heating nozzle 224 and the preheating sleeve 226 as a further component of the induction heater 210, due to ohmic losses occurring therein. In order to generate the required alternating magnetic field, the heating windings 220, 222 are supplied with a current by means of a first control 270, which current has a suitable time profile (course in time), in particular a frequency, an amplitude and a shape.
However, it should also be noted that the desired defined temperature increase of the heating nozzle 224 and the preheating sleeve 226 is not only produced by eddy current losses. More specifically, for the case where the heating nozzle 224 and the preheating sleeve 226 are constructed of ferromagnetic materials (e.g., iron, steel, etc.), the hysteresis losses that occur accordingly contribute significantly to heating.
The material of the hot glue stick 112 which is melted or liquefied in the region of the heating nozzle 224 is discharged in a defined manner through the discharge opening 226 and can be supplied to the workpiece to be treated by the user in a precisely metered manner. For optimum heat transfer, the hot glue stick 112 directly contacts the heating nozzle 224 and the preheating sleeve 228, while the heating nozzle 224 and the preheating sleeve 226 are completely surrounded on the outside by the retaining section 118 and the conical nozzle section 132 of the pen housing 114 for thermal insulation. The optional metallic pre-heat sleeve 228 can prolong the duration of use of the hot glue pen 110 that is fully heated in the heating station 200 and, in addition, reduce the tendency of the molten material of the hot glue stick 112 to flow or drip out of the discharge outlet 226 of the heating nozzle 224 in an uncontrolled manner.
The two cylindrical heating coils 220, 222 are accommodated in an exemplary fashion in a winding carrier 230 of plastic material in the form of a roller, which is pushed in the axial direction into an annular housing 232 of the holding device 202 of the heating station 200 and preferably latches with this annular housing. The winding carrier 230 simultaneously forms the inner cylindrical receiving shaft 122 of the holding device 202. The annular housing 232 of the holding device 202 is connected to the base plate 204 of the heating station 200 via an at least partially hollow wedge-shaped base 234. The base 234 serves at the same time to accommodate the first controller 270, the socket 274 and the optical 276 and/or acoustic 278 signal unit. In addition to this, the controller 270 can be coupled with a first wireless AM communication unit 280, for example, in order to enable wireless data exchange with the hot glue pen 110, wherein the AM communication unit 280 is handled by the first controller 270 in a suitable manner.
Preferably, the optional first detector winding 240 is located in the region of the insertion section 236 of the holding device 202 or of the receiving shaft 122 defined by the winding carrier 230, and the optional second detector winding 242 is located in the end section 238 of the receiving shaft 122 formed by the winding carrier 230 facing away from the insertion region. In the position of the hot-glue pen 110 shown here inserted into the holding device 202 of the heating station 200, the first detector winding 240 interacts magnetically with a coding element 244 arranged in the region of the centering portion 124 of the pen housing 114. The encoding element 244 is realized here only exemplarily with a metal ring 246, but can alternatively also be a ring coil or another component influencing the magnetic field.
In particular, the detection of an empty position of the receiving shaft 122 can be carried out by means of the first detector winding 240, so that, for example, when the hot-glue pen 110 is inserted, the two heating windings 220, 222d can preferably be switched on automatically by means of the microcontroller 272 and can be adjusted accordingly to achieve a specific temperature. In addition, the following are reliably excluded by the detector winding 240 according to the "key lock principle": heating, by means of induction heaters, of foreign bodies not envisaged for conventional use of the heating station 200, which are not authorized, such as screwdriver blades, drills, screws, metal rods, wires, etc. In addition, if further coding elements which can be distinguished from the coding elements 244 by means of the first detector winding 240 are integrated in the hot glue pens 110, 150, 152 which are equipped with different hot glue sticks 112, 158, 160, then these hot glue pens 110, 150, 152 can be reliably identified and distinguished by means of the first detector winding 240. Thus, different parameter sets can be used in the first controller 260 or microcontroller 272 in order to achieve an optimal operation of the respective hot glue stick 112, 158, 160 in the respective hot glue pen 110, 150, 152. This is preferably achieved by corresponding temperature regulation of the induction heater 210 by means of the first controller 270.
It is also possible to operate the hot glue pen 110 at a reduced temperature, for example, in the sense of improved flame protection, wherein the hot glue stick 112 is formed here with an alternative glue or plastic having a significantly reduced melting enthalpy, in particular with a special wax or the like. It is also possible to store a plurality of heating profiles in the first controller 270. When one of the hot glue pens 110, 150, 152 is inserted into the holding device 202, the heating profile assigned to this hot glue pen by means of the respective coding element can be set up and used for the individually adapted actuation of the induction heater 210 by means of the first controller 270. Such a heating profile can contain, in particular, information about the time profile of the heating power of the induction heater 210.
In contrast, an embodiment of the heating station 200, which is not shown in the drawings, which comprises only the first heating winding 220 for melting and the second heating winding 222 for preheating, enables only an empty detection of the receiving shaft of the holding device 202 and a reliable detection of unauthorized foreign objects on the basis of magnetic field changes due to geometric deviations between the foreign objects and the hot glue pens 110, 150, 152 authorized for proper operation in the hot glue application device 100.
Fig. 2 shows the thermal gluing device 100 of fig. 1, which has a heating station 200, into whose holding device 202 the thermal glue pen 1 of fig. 1, equipped with the thermal glue stick 112, is inserted, i.e. introduced in an axially centered manner with respect to the longitudinal mid-axis 130. The annular housing 232 of the holding device 202 is connected to the base plate 204 of the heating station 200 by means of a pedestal 234. A first controller 270, preferably realized with a microcontroller 272, an optical signal unit 276, an acoustic signal unit 278, a socket 274 and an AM communication unit 280, which is only symbolically shown in the drawing, are integrated into the base 234. The two further thermal glue pens 150, 152 of fig. 1 are stored in a storage area of the base plate 204, which is concealed here.
The end face 128 of the holding device 202 comprises an approximately circular end face 250 of the winding carrier 230 and an likewise approximately circular end face 252 of the annular housing 232. The two heating windings 220, 222 and the two detector windings 240, 242 are accommodated in the winding carrier 230, wherein the first detector winding 240 is arranged in a first annular groove 254 of the winding carrier 230 and the second detector winding 242 is arranged in a second annular groove 256 of the winding carrier 230. The first annular groove 254 with the first detector winding 240 is preferably located in the region of the insertion section 236 of the holding device 202, while the second annular groove 256 is located in the region of the end section 238 of the holding device 202. The first heating winding 220 is located in a first annular cavity 258 of the winding carrier 230 and the second heating winding 222 is located in a second annular cavity 260 of the winding carrier 230, wherein the two, preferably substantially cylindrical, annular cavities 258, 260 are separated by a first annular flange 262 pointing radially outwards. The first annular groove 254 is separated axially from the second annular cavity 260 by a second annular flange 264 of the winding carrier 230, and the second annular groove 256 is separated from the first annular cavity 258 by a third annular flange 266 of the winding carrier 230. In particular, the three annular flanges 262, 264, 266, which are formed integrally with the winding carrier 230, allow the winding carrier to be precisely centered in the annular housing 232 of the holding device 202 of the heating station 200, which is essential for a defined and reliably reproducible function of the induction heater 210.
First heating winding 220 is magnetically coupled to a metallic heating nozzle 224, which can thereby be heated, so that hot-melt adhesive stick 112 is liquefied in the region of melting region 140 of hot-melt adhesive pen 110 and the molten hot-melt adhesive is discharged in a controlled and precisely metered manner from a discharge opening 226 of metallic heating nozzle 224 in the direction of the workpiece, not shown. The second heating winding 222 is magnetically coupled to a metallic preheating sleeve 228, so that the preheating region 142 of the hot glue pen 110 is correspondingly tempered or preheated. Only the axial feed of the still cold and solid hot-glue stick 112 takes place in the feed area 144 of the hot-glue pen 110.
In this case, the two heating windings 220, 222 are electrically actuated by means of the first controller 270 or microcontroller 272 in such a way that the heating power of the induction heater 210 of the thermal adhesive device 100, which is formed in particular by means of the two heating windings 220, 222, is precisely adapted to the respective requirements of the thermal adhesive stick 112 currently inserted into the thermal adhesive pen 110.
By means of the first detector winding 240, which is likewise coupled in a suitable manner to the first electrical controller 270, in conjunction with the coding element 244 in the hot-glue pen 110, a reliable detection of the absence of the receiving shaft 122 of the holding device 202, which is formed by the winding carrier 230, can be achieved. Thus, the induction heater 210 is only activated by the first control 270 when the hot glue pen 110 is pushed into the receiving well 122 of the holding device 202 as intended. In addition, the first detector winding 240, in cooperation with the first controller 270, may unambiguously detect a plurality of different metallic foreign objects in the receiving hoistway 122 that are not determined for use with the thermal adhesive apparatus 100. In addition to this, the first detector winding 240, in cooperation with the coding element 244 integrated into the hot-glue pen 110, can unambiguously recognize the three trained hot- glue pens 110, 150, 152, so that, if necessary, the corresponding heating parameters of the induction heater 210 can be individually and fully automatically adjusted for each of the hot- glue pens 110, 150, 152 of the hot-glue device 100 in a manner controlled by the first controller 270. In this case, the first controller 270 or the microcontroller 272 is based on the assignment of the three hot glue sticks 112, 158, 160, in this case, to the three hot glue pens 110, 150, 152, which is pre-stored or programmed in the first controller or microcontroller, which can obviously be changed and/or expanded at will on the user side.
Alternatively, a bidirectional communication between the fourth hot glue pen 300, which is indicated by a dotted line only, and the first controller 270 or the microcontroller 272 of the heating station 202 of the hot glue apparatus 100 can be realized by the second detector winding 242. For this purpose, the hot glue pen 300 preferably has a pen-owned winding 302 which is coupled to a second AM communication unit 304 integrated into the hot glue pen 300, which is controlled in a suitable manner by a second electronic controller 306 also integrated into the hot glue pen 300. The second electronic controller 306 is preferably implemented using a microcontroller 308 as well. Furthermore, a temperature sensor 310 can be integrated into the hot glue pen 300, which temperature sensor is preferably realized with an NTC resistor 312, which can be obtained in a cost-effective manner. The NTC resistor 312 is thermally coupled to a metallic heating nozzle 314 of the hot-glue pen 300, which is structurally configured to correspond, among other things, to the hot-glue pen 110 and its metallic heating nozzle 224 and the preheating sleeve 228. It is thus possible to transmit the current temperature of the heating nozzle 314 of the hot-glue pen 300 at any time wirelessly through the winding 302 and the second detector winding 242 of the heating station 200 to the first controller 270. At the same time, the second controller 306, the second AM communication unit 304 and the NTC resistor 312 can be fed with the electrical energy required for operation reliably and wirelessly via the pen-owned winding 302 by inductive coupling with the second detector winding 242 of the heating station 200.
Alternatively, not only passive hotgel pens 110, 150, but also hotgel pens 300 equipped with their own intelligence, which have an integrated microcontroller 308 and a sensing mechanism in the form of an NTC resistor 312 or thermistor, can be used on the hotgel device 100 according to the invention.
Fig. 3 shows an electrical connection diagram of the thermal gluing device 100 of fig. 2 with a thermal glue pen 300, which is inserted in the illustration in the axial direction into the holding device 202 of the heating station 200 of the thermal gluing device 100, which is shown in a simplified illustration. In the region of the first detector winding 240 on the heating station side, no object of interest, i.e. in particular no coding element, is present, which is illustrated by the open winding 320 (indicated by a dashed line). The metallic heating nozzle 314 is inductively heated in an efficient manner by means of the first heating winding 220 in order to melt the hot glue stick 112 quickly, while the current temperature θ of the metallic heating nozzle 314 is detected here by means of the second detector winding 242 and transmitted wirelessly from the hot glue pen 300 to the heating station 200.
For this purpose, the NTC resistor 312 is connected in parallel with the own pen winding 302 and forms, together with parasitic capacitances not shown, an oscillating circuit 322. The pen's own second AM communication unit 304 and a switch 324 in series with the second AM communication unit, which is preferably implemented as a normally open switch 326, are connected in parallel with the NTC resistor 312. As indicated by the dashed oval, the NTC resistor 312 is in direct thermal contact with a heating nozzle 314 of the hot-glue pen 300 in order to detect the temperature of the hot-glue pen 112 used here as an example as far as possible without delay and with high measurement accuracy.
The second controller 306 or microcontroller 308 is connected in parallel with the second AM communication unit 304 and in parallel with a switch 324 connected in series with the second AM communication unit. The switch 324 can preferably be actuated by the second pen-side controller 306 or microcontroller 308. The quality Q of the resonant circuit 322 is dependent primarily on the current resistance value R of the NTC resistor 312 and thus on the corresponding temperature θ of the heating nozzle 314, wherein the resistance value R decreases strongly non-linearly as the temperature θ increases when the NTC resistor 312 (thermistor) is used here as the temperature sensor 310.
Fig. 4 shows a schematic diagram of a temperature-dependent curve of the tank quality Q of the second detector winding 242 of fig. 3. The quality Q of the oscillating circuit of fig. 3 is plotted on the vertical axis from "0" up to the maximum possible value "1", while the change in the temperature θ of the heating nozzle or NTC resistor is symbolized by an arrow 328 oriented opposite to the direction of extension of the vertical axis. For the tank circuit of fig. 3, there are basically three quality regions here.
In the second quality area 332, the thermal paste pen is accommodated in the holding means of the thermal paste apparatus. The temperature-dependent quality Q of the resonant circuit occurs via an NTC resistor connected in parallel with the coil of the pen itself. A higher quality Q results at low temperatures θ in the range of 20 ℃ on the basis of a special temperature-dependent, strongly nonlinear NTC resistance characteristic curve, whereas at significantly higher temperatures θ in the range above 100 ℃, a correspondingly lower quality Q of the resonant circuit occurs. The current temperature θ of the heating nozzle of the hot glue pen can thus be wirelessly transmitted to the first controller of the heating station of the hot glue device in a simple manner.
Claims (15)
1. A hot glue device (100) having at least one wireless, mobile hot glue pen (110, 150, 152, 300) for handling hot glue sticks (112, 158, 160) and an external electrical heating station (200), characterized in that the electric heating station (200) has a holding device (202) with an induction heater (210), for at least partially contactlessly heating the hotgel pencil (110, 150, 152, 300) that can be accommodated at least in sections in the holding device (202), wherein the hot glue pen (110) has an at least substantially rod-shaped pen housing (114), the pen housing has a hollow-cylindrical supply section (116) for a hot glue stick (112) and a holding section (118) adjoining the supply section in the axial direction for gripping by a user.
2. The thermal gluing device according to claim 1, characterized in that the thermal glue pen (110, 150, 152, 300) has a pen-shaped pen housing (114) with a supply section (116) for a thermal glue stick (112, 158, 160) and a holding section (118) for a user-side grip, wherein the holding section (118) can be accommodated coaxially in a receiving well (122) of a holding device (202) of the electrical heating station (200) with the formation of an annular gap (120).
3. The hot gluing device according to claim 2, characterized in that a centering section (124) is formed between the feed section (116) and the holding section (118) of the pen housing (114), which centering section can be received in a form-fitting manner in the receiving shaft (122), wherein a shoulder (126) is formed between the feed section (116) and the centering section (124), which shoulder is provided for abutting against an end face (128) of a holding device (202) of the electrical heating station (200).
4. The thermogluing device according to claim 2 or 3, characterized in that the electrical heating station (200) has a base plate (204) with a storage area (206) for a predetermined number of thermogluing pens (110, 150, 152, 300), the central longitudinal axis (130) of the receiving shaft (122) of the holding device (202) of the electrical heating station (200) extending obliquely with respect to the base plate (204).
5. A thermo-gluing device according to any of claims 1 to 3, characterised in that the induction heater (210) comprises at least one first heating winding (220) for melting a thermo-glue stick (112, 158, 160).
6. A thermal gluing device according to claim 5, wherein said induction heater (210) comprises a second heating winding (222) for preheating said hot glue stick (112, 158, 160).
7. A thermal gluing apparatus according to any one of claims 1 to 3, wherein at least one first detector winding (240) is arranged in the region of the lead-in section (236) of the holding means (202) of the electrical heating station (200).
8. The hot gluing device according to claim 7, characterized in that at least one second detector winding (242) is provided in the region of an end section (238) of a receiving shaft (122) of a holding device (202) of the electrical heating station (200) facing away from a lead-in section (236) of the holding device (202).
9. A thermal gluing device according to any one of claims 1 to 3, characterised in that a metallic heating nozzle (224) is arranged in the region of the nozzle section (132) of the pen housing (114).
10. A thermal gluing device according to claim 2 or 3, characterized in that a metallic preheating sleeve (228) is arranged in the region of the holding section (118) of the pen housing (114).
11. A thermo-gluing device according to claim 7, characterised in that at least one coding element (244) is arranged in the pen housing (114), wherein at least two different types of thermo-glue sticks (112, 158, 160) can be unambiguously identified and the presence of non-compliant foreign bodies can be reliably detected by means of the coding element (244) and the first detector winding (240).
12. A thermal gluing apparatus according to any one of claims 1 to 3, characterised in that said electric heating station (200) has a first controller (270).
13. A hot glue device according to claim 12, characterised in that the hot glue pen (300) has at least one temperature sensor (310) and/or at least one AM communication unit (304) for contactless communication with the first controller (270).
14. A hot-gluing apparatus according to claim 12, characterized in that the hot-glue pen (300) has a second controller (306) which can be supplied with electrical energy contactlessly by the electrical heating station (200).
15. The thermal gluing device according to claim 12, characterized in that said electric heating station (200) has at least one optical and/or at least one acoustic signalling unit (276, 278).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017212528.4 | 2017-07-20 | ||
| DE102017212528.4A DE102017212528A1 (en) | 2017-07-20 | 2017-07-20 | Hot glue device with a hot glue stick |
| PCT/EP2018/064549 WO2019015840A1 (en) | 2017-07-20 | 2018-06-04 | Hot-seal device with a hot glue pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110997161A CN110997161A (en) | 2020-04-10 |
| CN110997161B true CN110997161B (en) | 2022-04-19 |
Family
ID=62555056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880048555.XA Active CN110997161B (en) | 2017-07-20 | 2018-06-04 | Hot glue sticking equipment with hot glue pen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3655171A1 (en) |
| CN (1) | CN110997161B (en) |
| DE (1) | DE102017212528A1 (en) |
| WO (1) | WO2019015840A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019220199A1 (en) | 2019-12-19 | 2021-06-24 | Robert Bosch Gesellschaft mit beschränkter Haftung | Device for supplying a mobile multi-melting device with heating power and / or for temperature measurement |
| DE102019220217A1 (en) * | 2019-12-19 | 2021-06-24 | Robert Bosch Gmbh | Portable multi-melter and apparatus with a portable multi-melter |
| DE102021213122A1 (en) | 2021-11-22 | 2023-05-25 | Robert Bosch Gesellschaft mit beschränkter Haftung | Heater pen device, hot-melt adhesive system with the heater pen device and method for heating a heatable pin of a heater pin device |
| CN115415116B (en) * | 2022-09-26 | 2023-07-18 | 山东力诺阳光电力科技有限公司 | Double-roller type temperature control automatic glue extruding device and glue extruding method |
| DE102022211276A1 (en) | 2022-10-25 | 2024-04-25 | Robert Bosch Gesellschaft mit beschränkter Haftung | Adhesive device |
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| US3430816A (en) * | 1967-08-17 | 1969-03-04 | Daubert Chem Co | Apparatus for dispensing adhesive materials |
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| US6041972A (en) * | 1997-01-17 | 2000-03-28 | Maayeh; George | Warming tray for holding removable cartridges |
| DE102006059305A1 (en) * | 2006-12-15 | 2008-06-19 | Atrium Enterprises Gmbh | Device for heating/dispensing a flowable substance, especially a hot melt adhesive, comprises a handle element with a mechanism for dispensing substance from a melting region, and a heating element housing with an induction coil |
| CN104138127A (en) * | 2008-05-23 | 2014-11-12 | 捷通国际有限公司 | Inductively-heated applicator system |
| JP2017119229A (en) * | 2015-12-28 | 2017-07-06 | 極東産機株式会社 | Adhesive discharge device |
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| EP0696481A1 (en) * | 1994-08-10 | 1996-02-14 | Loctite Corporation | Microwaveable adhesive dispenser and microwaveable adhesive charge therefor |
| US5584419A (en) * | 1995-05-08 | 1996-12-17 | Lasko; Bernard C. | Magnetically heated susceptor |
| GB2371590B (en) * | 2001-01-25 | 2004-12-15 | Carglass Luxembourg Sarl Zug | Curing of adhesive materials particularly for glazing applications |
| DE102010030636B4 (en) * | 2010-06-29 | 2023-12-28 | Robert Bosch Gmbh | Hot glue device |
| DE102015201906A1 (en) * | 2015-02-04 | 2016-08-04 | Robert Bosch Gmbh | Hot glue device |
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2017
- 2017-07-20 DE DE102017212528.4A patent/DE102017212528A1/en active Pending
-
2018
- 2018-06-04 WO PCT/EP2018/064549 patent/WO2019015840A1/en unknown
- 2018-06-04 EP EP18729635.5A patent/EP3655171A1/en active Pending
- 2018-06-04 CN CN201880048555.XA patent/CN110997161B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3430816A (en) * | 1967-08-17 | 1969-03-04 | Daubert Chem Co | Apparatus for dispensing adhesive materials |
| US5540357A (en) * | 1994-08-10 | 1996-07-30 | Loctite Corporation | Microwaveable adhesive charge comprising shaped adhesive body |
| US6041972A (en) * | 1997-01-17 | 2000-03-28 | Maayeh; George | Warming tray for holding removable cartridges |
| DE102006059305A1 (en) * | 2006-12-15 | 2008-06-19 | Atrium Enterprises Gmbh | Device for heating/dispensing a flowable substance, especially a hot melt adhesive, comprises a handle element with a mechanism for dispensing substance from a melting region, and a heating element housing with an induction coil |
| CN104138127A (en) * | 2008-05-23 | 2014-11-12 | 捷通国际有限公司 | Inductively-heated applicator system |
| JP2017119229A (en) * | 2015-12-28 | 2017-07-06 | 極東産機株式会社 | Adhesive discharge device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017212528A1 (en) | 2019-01-24 |
| EP3655171A1 (en) | 2020-05-27 |
| WO2019015840A1 (en) | 2019-01-24 |
| CN110997161A (en) | 2020-04-10 |
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