DE202015005977U1 - Activation device for a device for applying in particular adhesively heat-activatable edge strips on plate-like workpieces - Google Patents

Abstract

Activation device for a device for applying in particular adhesively heat-activatable edge strips (1) to plate-type workpieces, comprising at least one hot gas supply (9) for supplying heated and pressurized hot gas (12) into an activation space (26) in which the hot gas (12 ) heats the heat-activatable layer of the edge strip (1), and at least one collecting device (8) for collecting and discharging the heated hot gas (12) from the activation space (26), characterized in that the activation space (26) is formed bounded in such a way in that the hot gas (12) flowing through the activation space (26) is led largely completely within the activation space (26) from the hot gas supply (9) to the hot gas (8) receiving means (8) without being able to exit the activation space (26) ,

Description

The present invention relates to an activation device for a device for applying in particular adhesively heat-activatable edge strips on plate-like workpieces according to the preamble of claim 1.

Devices for applying an edge strip to a narrow surface of a workpiece, in particular a wooden workpiece, are known in different embodiments. These so-called Kantenanleimvorrichtungen be used in woodworking to apply edge strips (also called edge banding) on a narrow surface of a workpiece.

Edge strips were generally used in the past, which were provided on one side with an activatable hot melt adhesive or had not yet applied an adhesive. Such an edge strip is applied with a special device on the workpiece edge, fixed after application of a viscous under heat adhesive or activation of a pre-applied hot melt adhesive on the narrow surface and machined by machine.

More recently, other edge banding materials have been developed, known as so-called non-adhesive edge banding. These consist of two or more preferably co-extruded layers of different plastic materials, one of which is melted by laser light in such a manner as in the known art Melt adhesive layers can be applied to narrow surfaces and glued to these narrow surfaces. The other of the two layers is not changed by the laser light and forms the visible outside of the edge strip. In this case, these two coextruded layers are optically identical-looking and, in particular, also have the same color, so that the thinly melted layer, which is thin anyway, does not visually differ from the rest of the edge strip after the edge strip has been applied. In the industry, therefore, either the so-called. Nullfuge or with reference to the usual type of thermal activation of the laser edge is spoken.

From the DE 10 2011 015 898 A1 It has become known, instead of activating these glueless edge strips instead of as originally thought by means of laser with hot gas applied under pressure to the edge strips, in particular with hot air, that the edge strips can be glued. This makes it possible to achieve significantly lower equipment costs compared with laser activation or even alternative plasma activation with at least as good adhesion. Conveniently, heated air as hot gas z. B. used in the form of heated compressed air, since it is almost everywhere available in the workshop.

The volume flow of hot gas required for heat activation of such edge material is quite considerable due to the higher pressure. In addition, since this hot gas must be brought to the required temperature quite costly, hot gas production is a very significant cost factor for the edge coating. It is therefore desirable to keep the volume flow of the hot gas as low as possible or to heat more effectively in order to cost-effectively activate the edge material can.

In this case, especially the losses of hot gas play a special role, which can be quite considerable in the conventional application of the hot gas to the edge material. The hot gas is usually passed through nozzles in a guide channel for guiding the edge material on the edge material, said guide channel is usually designed to be open to the environment. Thus, at the sides of the guide channel of the edge material redirected hot gas in a considerable extent emerge from the guide channel, also is entrained by the continuous edge material itself hot gas and thus discharged a total of high proportion of the hot gas from the guide channel. This hot gas is not only lost, but also stresses surrounding components of an edge coater thermally strong and therefore separate precautions must be taken to thermally isolate these adjacent components.

From the DE 10 2013 012 644 A1 a coating device is known which collects at least a portion of the falling after activation hot gas via an exhaust duct again and returns for reuse. In this case, however, the degree of capture of the falling hot gas is insufficient due to lack of sealing, also hot gas occurs in the intervals between the individual coating operations in which no edge material passes through the guide channel, uncontrolled from the guide channel and can not be recovered.

The object of the invention is to propose a further developed activation device for a device for applying in particular adhesively heat-activatable edge strips on plate-like workpieces, which allows a largely lossless with respect to the hot gas activation of the edge material and a nearly complete recovery of the hot gas after activation.

The solution of the object of the invention results from the characterizing features of claim 1 in conjunction with the features of the preamble. Further advantageous embodiments of the invention will become apparent from the dependent claims.

The invention relates to an activation device for a device for applying in particular adhesively heat-activatable edge strips on plate-like workpieces, comprising at least one hot gas supply for supplying heated and pressurized hot gas into an activation space in which the hot gas heats the heat-activatable layer of the edge strip, and at least one collecting device for collecting and for discharging the heated hot gas from the activation space. Such a generic activation device is formed further characterized in that the activation space is formed bounded so that the hot gas flowing through the activation space is passed almost completely within the activation space of the hot gas supply to the hot gas collection device, without being able to escape from the activation space. As a result, the previously unavoidable leakage losses as well as the entrainment of hot gas are minimized by the edge strips as far as possible and kept the hot gas within the activation space. In this case, the hot gas flows almost exclusively from the hot gas supply with designated hot gas outlets under contacting the edge material to be activated provided with Auffangeinlässen catcher for collecting and for discharging the heated hot gas after activation of the edge material and can almost completely z. B. recycled to a hot gas treatment or to a heat exchanger or used for preheating the edge material. As a result, on the one hand to heat much less hot gas, since the hot gas collected is usually still very hot and therefore only a smaller temperature difference must be applied by re-heating in a re-use of this recovered hot gas. It is also possible, other hot gases than z. B. to use the abundant ambient air, z. B. to use certain physical or chemical or other properties of such hot gases. Such special hot gases can also be largely completely recovered and thereby circulated without the need for constantly high levels of newly prepared hot gases. In addition to improving the energy balance of the activation of the edge material by the hot gas by the avoidance of heat losses surrounding the activation space functional components of the device for applying edge strips by the avoided hot gas outlet thermally far less burden, resulting on the one hand in the already scarce installation space for the activation device Space is gained and the life of these thermally less stressed components can be increased, which allows a further improvement in the economics of edge coating.

In an advantageous development, the activation space on one side is delimited by a rear wall component in which channels for the hot gas supply and for the hot gas collector are arranged, which are in fluid communication with hot gas outlets and catch inlets in the area of the rear wall component facing the edge material , This rear wall serves on the one hand as a base component for mounting further components of the activation device, on the other hand, all components required for the hot gas supply and hot gas discharge are arranged such connections, distribution channels and hot gas outlets and Auffangseinlässe in this compact backplane component and therefore reduces the space required for the activation device significantly. In this case, the hot gas outlets and catch inlets are arranged on the surface of the rear wall component facing the continuous edge material and act directly on the surface of the edge material running past it and to be activated.

It is particularly advantageous if the hot gas outlets are arranged adjacent to the exit of the edge material from the activation space to the workpiece to be coated. As a result, the highest temperatures in the surface to be activated of the edge material when leaving the activation space and thus immediately before the pressing of the edge material to the workpiece to be coated is achieved, which takes place in the direction of passage immediately behind the activation device. This allows precise adjustment of the activation of the edge material caused by the hot gas due to the heating temperature, since the activated surface of the edge material can cool down only slightly before the contact with the workpiece to be coated takes place. In this case, the hot gas outlets are arranged in the direction of passage of the edge material behind the Auffangseinlässen for the hot gas and the hot gas flows from the Heißgasauslässen against the direction of passage of the edge material to the Auffangseinlässen. By this countercurrent occurs a particularly intimate contact of the hot gas with the edge material and thus a particularly good heat transfer of hot gas on edge material.

In a further embodiment, the hot gas outlets the hot gas flow perpendicular to the continuous edge material or inclined, preferably in the direction of the Auffangseinlässen for the hot gas discharged to the continuous edge material. In a vertical flow of the edge material, a particularly intense impact situation of the hot gas is created on the edge material, whereas a below a z. B. acute angle successive influx of the hot gas on the edge material influences the flow conditions within the activation space and possibly allows directional turbulence of the hot gas with turbulent flow and thus also high heat transfer. As a result, if necessary, the amount of hot gas required can be reduced, and thus again the cost-effectiveness of the coating can be influenced.

It is particularly advantageous if hot gas outlets and collecting inlets are arranged on the same side of the edge material. As a result, the continuous edge material directs the hot gas with its surface to be thermally activated directly from the hot gas outlets to the collection inlets, without the non-thermally activatable part of the edge material unnecessarily coated by the hot gas and possibly unnecessarily or even damaged. The hot gas advantageously flows into the edge material in such a way that the hot gas is deflected by the surface of the edge material to be activated in the direction of the collection inlets.

A further improvement with regard to the hot gas losses can be achieved by arranging flap-like closure devices preferably adjacent to the activation space, which close the inlet channel and / or the exit channel for the edge material to the activation space when no edge material passes through the activation device. Of course, other than flap-like designs of the closure devices are conceivable. Since the edge material is applied intermittently to the workpiece as a rule, the edge material usually unwound from a roll always passes through the activation space only temporarily. In the meantime, in which z. B. is fed a new workpiece or another edge of the same workpiece is positioned relative to the activation device, in the activation space is usually no edge material in the pass. Since it is not possible due to the necessary flow in the heating of hot gas for these rather short, but not negligible periods to completely stop the hot gas generation, the hot gas is indeed heated further, but reduces the supply of hot gas. Nevertheless, depending on the handling times for the workpiece in these time periods, a rather considerable portion of the still supplied hot gas is lost through the openings arranged in the channel for guiding the edge material on the inlet side and outlet side of the activation space. Here is ensured by the inventive design with closure devices in the region of the inlet and / or the outlet for the edging material that no or substantially less hot gas can flow through these openings into the environment and thereby the hot gas balance is further improved. In a further embodiment, the closure devices can be opened and closed by the edge material itself when the edge material passes through the region of the activation space. This is for example possible by means of buttons or the like. Components that mechanically detect the passage of the edge material and also mechanically z. B. spring loaded preloaded locking devices open or close. In another embodiment, it is also conceivable that the closure devices by z. B. electrical or pneumatic or other adjusting devices are opened when the edge material passes through the region of the activation space, and be closed when no edge material passes through the region of the activation space. Again, sensors are used to detect the passage of edge material, and these sensors then control the corresponding actuators.

It is also conceivable and useful here for the closure devices to adapt their opening position to the thickness of the respective edge strip material. In particular, when the closure means urge the edge strip towards the hot gas outlets and catch inlets for the hot gas in the backwall member, the edge material is always passed accurately relative to the backwall member through the activation space, thereby also sharing the entrance channel and / or the outflow channel for the edge material be sealed with the edge material passing through the region of the activation space largely completely against the escape of hot gas. The closure devices close off the inlet channel and / or the outlet channel exactly as far as is predetermined by the width of the continuous edge material and close the gap between the respective edge material and the generally larger sized inlet channel and / or the outlet channel usually designed for the largest cross-sectional dimensions of the edge material to be processed.

In a further advantageous embodiment, the activation space opposite the rear wall component may be delimited by a preferably plate-like or sheet-like cover component, and the edge material between the rear wall component and the cover component may continuously pass through the activation space. The cover is usually transverse to Passage direction of the edge material and arranged opposite and parallel to the rear wall component, so that the activation space is formed primarily between the rear wall member and cover member. By the cover member is prevented on the one hand, that hot gas, flows laterally past the edge material, thereby released freely into the environment and would be lost. On the other hand, in a further refinement, the cover component can be arranged to be adjustable relative to the rear wall component such that the relative position of the cover component can be set to the respective dimensions and the passage height of the edge material. This is particularly useful when the cover member has guide means which guide the edge material as it passes through the activation space relative to the hot gas outlets and the catch inlets for the hot gas. The cover component takes on the one hand the task of demarcating the activation space opposite to the back wall component adaptable to each edge material to be processed and thus limit the loss of hot gas in this area, on the other hand, the cover component leads the edge material at least in sections when passing through the activation space , In order to be able to process different dimensions of the edge material here too, the cover component is arranged to be adjustable relative to the rear wall component and thus also to the hot gas outlets or collecting inlets. In a further embodiment, the cover component is arranged relative to the rear wall component and determined that forces on the cover member during the guidance of the edge material cause no changes in position of the cover. Since the cover member is made of thin space rather thin sheet, it must be absolutely prevented that the cover member is unduly deformed by the forces of the continuous edge material or changed in its set position, whereby on the one hand, the passage of the edge material through the activation space and on the other the seal the activation space may be affected by unwanted leakage of hot gas.

In a further embodiment, an adjusting device can be adjustably arranged between cover component and rear wall component, by which at least sections of the hot gas outlets and / or the collection inlets can be closed depending on the width of the edge material. Such an advantageously plate-like adjusting device is guided substantially perpendicular to the direction of passage of the edge material adjustable between the cover member and rear wall component and preferably infinitely fixed to the rear wall component and can cover at least portions of the hot gas outlets dense and thus seal the escape of hot gas from these sections. As a result, depending on the width of the edge material to be processed, only the portions of the hot gas outlets are released, which is needed to fully heat the heat-activatable part of the edging material to match the width of the edging material, without hot gas being used laterally on the edging material due to the dimensions of the respective edge material blown over. As a result, the required amount of hot gas can be optimally adapted to the dimensions of the edge material by covering unneeded sections of the hot gas outlets and thus sealed. In a further embodiment, guiding devices can be arranged on the region of the plate-like adjusting device facing the edge material, which guides the edge material as it passes through the activating space relative to the hot gas outlets and the collecting inlets for the hot gas. This can take place, for example, in the form of guide projections or the like, which interact with the edge regions of the edge material during the passage of the edge material and guide it. In particular, these guide devices can cooperate with the corresponding guide devices on the cover component.

With regard to the design of the hot gas outlets and the intake inlets for the hot gas, it is conceivable to form these in the form of preferably cylindrical bores and / or elongated holes and / or slots or the like openings.

It may be of particular effect with respect to the improvement of the heat transfer from the hot gas to the edge material in the activation space, if in the activation space, preferably in the area of the edge material facing surface of the back wall member, at least one device for swirling the hot gas in the enclosed activation space for a more intense heat transfer of hot gas is placed on the edge material. Since the time available for activating the edge material is rather low due to the rather high coating speeds, a particularly high degree of heat transfer from the hot gas to the edge material is important. For this purpose, on the one hand, the flow of the hot gas is used by the hot gas outlets to Auffangeinlässen so that the hot gas sweeps over the edge material to be activated. Also, due to the flow conditions, turbulent flow of the hot gas on the way from the hot gas outlets to the catch inlets is unavoidable. However, it can improve the heat transfer particularly effective if this turbulence is specifically influenced by means for swirling, such as by at least one baffle-like device for hot gas control in the area between hot gas outlets and Auffangseinlässen for the hot gas. Such a device, which advantageously has at least one chamber-like depression in the rear wall component, passes the hot gas stream z. B. targeted in the area of the edges of the edge material, there to ensure the degree of activation of the edge material in any case. This edge region of the edge material is visually and functionally particularly important later on the workpiece, because it is mechanically heavily loaded and visually even small missing bonding points can be recognized. It is of course conceivable to design and design the at least one device for swirling to produce other advantageous flow conditions of the hot gas. It is also conceivable to provide the hot gas outlets and / or collecting inlets for the hot gas itself with baffle-like devices, so that the hot gas is swirled specifically directly after it leaves the hot gas outlets.

In a further embodiment, it is also conceivable that the baffle-like device is fixedly arranged in the activation space and thus always influences the flow conditions in the activation space in the same way. But it is also conceivable that the baffle-like device is arranged relatively adjustable to the continuous edge material in the activation space, preferably in the continuous plane of the edge material or perpendicular thereto. As a result, a change in the flow conditions in the activation space is possible depending on the effects to be achieved or depending on the respective dimensions of the edge material. Furthermore, it is conceivable that the baffle-like device is arranged movably in the activation space during the activation process, preferably rotating or oscillating, the movement of the baffle-like device in the activation space being driven externally, preferably via an electric motor, or internally via the hot gas itself.

The baffle-like device may itself be smooth or have a specific roughness and / or a profiling to z. B. at a fixed baffle-like device, the flow of the hot gas by surface properties such. B. small roughness or larger profiles to change.

Advantageous for the life of the activation space adjacent components, it is when the activation space delimiting components such as rear wall member, cover member and closure means are formed of a heat-insulating material or provided with a heat-insulating material. Although the boundary of the activation space prevents direct escape of hot gas and the concomitant direct thermal load of adjacent to the activation space components, but components such as backplane, cover and sealing devices heat themselves by the contact with the fuel gas. A release of this heating to the activation space bounding components can be prevented by appropriate materials of backplane component, cover component and closure devices or additionally arranged on the rear wall component, cover component and closure devices heat protection materials.

In a further embodiment, it is also conceivable that the rear wall component has openings which are directed to the narrow surface of the workpiece to be coated and selectively deliver hot gas for preheating the to be coated narrow surface of the workpiece to be coated. Here, a targeted loss of hot gas makes sense to improve the bonding with the heat-activated edge material by preheating the to be coated narrow surface of the workpiece to be coated.

A particularly preferred embodiment of the activation device according to the invention is shown in the drawing.

Show it:

1 A schematic representation of a partially opened front view of the activation device according to the invention with a representation of the rear wall component and the hot gas supply arranged therein and the collecting device for collecting and discharging the heated hot gas from the activation space and the edge material passing in front of it,

2 - A plan view of the activation device according to 1 in a view with arranged in front of the rear wall component cover member and adjusting device for partially closing the hot gas supply and the collecting device,

3 - A side view of the activation device according to 1 .

4 - A plan view of an activation device according to 1 and closure means arranged thereon for covering the gaps in the area of the inlet and outlet channel for the edge material.

In the 1 is a very schematic representation of a partially open front view of the activation device according to the invention to recognize, in which a front of the continuous edge material 1 arranged cover component 17 and an actuator 16 were omitted.

One recognizes the approximately plate-shaped rear wall component 2 and the hot gas supply arranged therein 9 as well as the catcher 8th for collecting and discharging the heated hot gas 12 from the activation room 26 as well as the preceding edge material 1 , Here are in the back wall component 2 from above two blind holes 13 . 14 introduced, in the manner not shown, a hot gas stream 6 can be supplied from a heating device, not shown, and transverse to the bore 13 arranged openings 3 , here in the form of a nozzle row of cylindrical individual nozzles 3 towards the front of the back wall component 2 continuous edge material 1 can be blown out. The edging material 1 is doing by means not shown in the direction of the arrow 5 in front of the back wall component 2 previously moved and that from the nozzles 3 exiting hot gas stream 12 in this case activates the thermally activatable layer of the edge material in a basically known manner 1 , The hot gas stream 12 flows predominantly on the front of the rear wall component 2 facing and to be activated surface of the edge material 1 contrary to the direction of passage 5 of the edge material 1 towards the catcher 8th for collecting and discharging the heated hot gas, the hot gas stream 12 after the thermal activation of the edge material 1 into a slot-like opening here 4 in the front of the back wall component 2 enters and in the hole 14 as dissipated hot gas stream 7 from the connection 8th a further use, not shown, such as in a circulation process or a heat exchanger or for preheating the edge material in a manner not shown, can be supplied.

This so far largely known activation process of the edge material 1 using the hot gas 12 is further developed device technology in that in the area of the front of the back panel component 2 in the manner described below, a largely fluid-tight activation space 26 is formed, through which the hot gas 12 while largely avoiding leakage through flows and thus little to no hot gas 12 lost in activation.

For this purpose, in the area of the front of the back wall component 2 in the in the 2 and 3 closer recognizable way through a cover 17 and an actuator 16 the activation room 26 enclosed by the edge material 1 passes through and the flow of hot gas 12 conducted in the manner described. The adjusting device 16 Here is a substantially plate-shaped component, the side on both sides of the rear wall component 2 encompasses and on the back wall component 2 through these lateral encirclements 25 guided to the back wall component 2 in the direction of the arrow 23 can be adjusted in height. The adjusting device 16 this covers depending on their relative position to the back wall component 2 a certain proportion of the nozzles 3 or the slot 4 the catcher 8th for collecting and discharging the heated hot gas 12 thereby preventing a flow of the hot gas 12 through these outlets 3 or inlets 4 , The setting of the relative position of the adjusting device 16 to the back wall component 2 takes place here depending on the width of the edge material 1 as shown in the side view of 3 best seen. The total number of nozzles 3 or length of the outlets 3 or inlets 4 is hereby limited to maximum cross-sectional dimensions of the edge material 1 matched, often and depending on the thickness of the workpiece to be coated only smaller widths of the edge material 1 to be processed. To activate such a narrow edge material 1 necessary volume flow of hot gas 12 to be reduced by the adjusting device 16 only the outlets 3 or inlets 4 released on the edge material 1 are directed. The other sections of the outlets 3 or inlets 4 be through the actuator 16 covered and thus closed.

Below the adjusting device 16 , as in 3 represented thereby creates the activation space 26 in the form of a flow channel for the edge material 1 , in which the volume flow of the hot gas 12 from the outlets 3 on the surface of the edge material to be activated 1 is blown. An outflow of the hot gas 12 to above this flow channel 26 is doing by the actuator 16 prevented.

Furthermore, an outflow of the hot gas 12 in one out of the edge material 1 lying area is covered by the cover 17 prevents the sheet-like or plate-like design and is relatively adjustable in the vertical direction 24 at the adjusting device 16 is held. For this purpose, as in the arrangement of the adjusting device 16 on the back wall component 2 the cover component 17 formed laterally across and accurately height adjustable on the back wall component 2 or at the adjusting device 16 arranged. Thus, the cover member 17 relative to the actuator 16 and the actuator 16 again height-displaceable to the rear wall component 2 be set. The for a specific edge material 1 each possible and necessary setting of cover component 17 and adjusting device 16 relative to the backplane member 2 can then by screws 18 be backed up by corresponding slot-like and not shown in more detail slots or holes in cover 17 and adjusting device 16 in thread in the rear wall component 2 be screwed and thereby cover component 17 and adjusting device 16 on the back wall component 2 terminals.

cover member 17 and adjusting device 16 can each guide the edge material 1 through the activation room 26 be used by leading edges 19 on the cover component 17 and leading edges 20 at the adjusting device 16 are provided, which form groove-like depressions, which are the edges of the edge material 1 overlap laterally and thereby in its passage through the activation space 26 to lead. Due to the relative adjustability of cover component 17 and adjusting device 16 to each other, these leading edges 19 . 20 suitable for an unobstructed, but nevertheless accurate passage of the edge material 1 be set.

Lower side of the activation room 26 is the back wall component 2 on an only indicated base plate 27 held, so the activation space 26 also on the underside largely tight against unwanted escape of hot gas 12 is sealed.

In the 4 is further indicated as the activation space 26 in the area of the inlet or outlet of the edge material 1 against unwanted escape of hot gas 12 can be sealed. Because the activation room 26 to ensure a flow around the edge material 1 and depending on the thickness of the actuator 16 usually wider than the thickness of the edge material 1 is formed, can hot gas 12 in or against the passage direction 5 of the edge material 1 from the inlet or outlet of the activation space 26 for the edge material 1 escape. To prevent such unwanted flow of the hot gas can in the region of the inlet and outlet of the edge material 1 suitably shaped, hinged flaps 21 be arranged, the z. B. on the effect of a joint arranged close to the spring 22 by means of the air pressure automatically close, if just no edge material 1 through the activation room 26 passes through. Runs edge material 1 through the activation room 26 through, like this in 4 can be seen, so open the flaps 21 so far that they are on the edge material 1 z. B. contact touching and thus bridge the gap, otherwise in the region of the inlet or outlet of the edge material 1 would remain open. It is conceivable that the flaps 21 automatically by mechanical elements of the edge material 1 opened and / or closed, also z. B. an active electrical or pneumatic actuation of the flaps 21 conceivable, if not in 4 shown.

For example, in the area of the passing edge material 1 arranged surface of the rear wall component 2 can in the 1 respectively. 4 only roughly schematically indicated swirling devices 10 . 15 are arranged, which are fluidically designed so that the volume flow of hot gas 12 in addition to the already unavoidable turbulence of the flow continues to swirl and targeted. This can be done in a pocket-like depression 15 in this area of the rear wall component 2 one or a series of harassment 10 be arranged, the z. B. as in 4 represented a little over the surface of the back wall component 2 in the activation room 26 protrude into it and the volume flow of the hot gas 12 swirl targeted. As a result, the heat transfer from the volume flow of the hot gas 12 on the edge material 1 and thus the activation of the edge material 1 be further improved. It is also conceivable here, but not shown in the figures, that the at least one chicane 10 , which can also be formed fluidically in a variety of ways, in the activation space 26 movable to arrange. For example, by means of a drive mechanism, not shown, such a chicane 10 z. B. in the plane or perpendicular to the continuous edge material 1 associated surface of the rear wall component 2 to be moved. This produces an increase in the turbulence and thus an improvement in the heat transfer from the volume flow of the hot gas 12 on the edge material 1 ,

LIST OF REFERENCE NUMBERS

1

edge material

2

Rear wall component

3

Outlets, nozzles

4

Inlets, slot, holes

5

Passage direction edge material

6

Inflow of hot gas

7

Outflow hot gas

8th

Collecting device for the hot gas

9

Hot gas supply

10

chicane

11

Front surface rear wall component

12

Hot gas stream

13

blind hole

14

blind hole

15

pocket-like depression

16

setting device

17

cover

18

screw

19

Guide edge cover

20

Leading edge adjusting device

21

flap

22

spring element

23

Adjustment direction Actuator

24

Adjustment direction cover

25

encasement

26

activation space

27

baseplate

28

exit

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102011015898 A1 [0005]
• DE 102013012644 A1 [0008]

Claims (35)

Activation device for a device for applying in particular adhesively heat-activatable edge strips ( 1 ) on plate-like workpieces, comprising at least one hot gas supply ( 9 ) for supplying heated and pressurized hot gas ( 12 ) into an activation space ( 26 ), in which the hot gas ( 12 ) the heat-activatable layer of the edge strip ( 1 ), and at least one collecting device ( 8th ) for collecting and discharging the heated hot gas ( 12 ) from the activation space ( 26 ), characterized in that the activation space ( 26 ) is formed so bounded that the activation space ( 26 ) flowing hot gas ( 12 ) largely completely within the activation space ( 26 ) from the hot gas supply ( 9 ) to the catcher ( 8th ) for the hot gas ( 12 ) is passed without leaving the activation space ( 26 ) to be able to escape. Activation device according to claim 1, characterized in that the activation space ( 26 ) on one side of a rear wall component ( 2 ), in which channels ( 13 ) for the hot gas supply and for the collecting device ( 14 ) for the hot gas ( 12 ) arranged with hot gas outlets ( 3 ) and intercepting inlets ( 4 ) in the area of the edge material ( 1 ) facing surface ( 11 ) of the rear wall component ( 2 ) are in fluid communication. Activation device according to claim 2, characterized in that the hot gas outlets ( 3 ) adjacent to the exit ( 28 ) of the edge material ( 1 ) from the activation space ( 26 ) are arranged to the workpiece to be coated. Activation device according to claim 3, characterized in that the hot gas outlets ( 3 ) in the direction of passage ( 5 ) of the edge material ( 1 ) behind the collection inlets ( 4 ) for the hot gas ( 12 ) are arranged. Activation device according to one of claims 2 to 4, characterized in that the hot gas outlets ( 3 ) the hot gas stream ( 12 ) perpendicular to the continuous edge material ( 1 ) or inclined, preferably towards the collecting inlets ( 4 ) for the hot gas ( 12 ), on the continuous edge material ( 1 ), preferably counter to the passage direction ( 5 ) of the edge material ( 1 ) dismisses. Activation device according to one of claims 2 to 5, characterized in that hot gas outlets ( 3 ) and collection inputs ( 4 ) on the same side of the edge material ( 1 ) are arranged. Activation device according to one of claims 2 to 6, characterized in that the hot gas ( 12 ) the edge material ( 1 ) flows in such a way that the hot gas ( 12 ) of the edge material ( 1 ) towards the collection inlets ( 4 ) is distracted. Activation device according to one of the preceding claims, characterized in that adjacent to the activation space ( 26 ) preferably flap-like closure devices ( 21 ) are arranged, which the inlet channel and / or the outlet channel for the edge material ( 1 ) to the activation space ( 26 ), if no edge material ( 1 ) passes through the activation device. Activation device according to claim 8, characterized in that the closure devices ( 21 ) of the edge material ( 1 ) itself open and closed when the edge material ( 1 ) the area of the activation space ( 26 ) goes through. Activation device according to claim 8, characterized in that the closure devices ( 21 ) are opened by adjusting devices when the edge material ( 1 ) the area of the activation space ( 26 ) and closed when no edge material ( 1 ) the area of the activation space ( 26 ) goes through. Activation device according to one of claims 8 to 10, characterized in that the closure devices ( 21 ) its opening position of the thickness of the respective edge strip ( 1 ) to adjust. Activation device according to one of claims 8 to 11, characterized in that the closure devices ( 21 ) the edge strip ( 1 ) in the direction of the hot gas outlets ( 3 ) and collection inputs ( 4 ) for the hot gas ( 12 ) in the back wall component ( 2 ) and the inlet channel and / or the exit channel for the edge material ( 1 ) together with the area of the activation area ( 26 ) continuous edge material ( 1 ) largely completely opposite hot gas outlet ( 12 ) seal. Activation device according to one of the preceding claims, characterized in that the activation space ( 26 ) opposite to the back wall component ( 2 ) of a preferably plate-like or blechartigem cover component ( 17 ) and the edge material ( 1 ) between the rear wall component ( 2 ) and the cover component ( 17 ) traversing the activation space ( 26 ) passes through. Activation device according to claim 13, characterized in that the cover component ( 17 ) relative to the backwall component ( 2 ) so adjustable ( 23 . 24 ) is arranged such that the relative position of the cover ( 17 ) to the respective thickness and flow height of the edge material ( 1 ) is adjustable. Activation device according to one of claims 13 or 14, characterized in that the cover component ( 17 ) Management facilities ( 19 ) having the edge material ( 1 ) when passing through the activation space ( 26 ) relative to the hot gas outlets ( 3 ) and the collection intakes ( 4 ) for the hot gas ( 12 ) to lead. Activation device according to one of claims 13 to 15, characterized in that the cover component ( 17 ) relative to the rear wall component ( 2 ) is arranged and determined that forces on the cover ( 17 ) while guiding the edge material ( 1 ) no position changes of the cover component ( 17 ) cause. Activation device according to one of claims 13 to 16, characterized in that between cover component ( 17 ) and rear wall component ( 2 ) an adjusting device ( 16 ) is adjustably arranged, through which at least portions of the hot gas outlets ( 3 ) and / or the intake intakes ( 4 ) depending on the width of the edge material ( 1 ) are closable. Activation device according to claim 17, characterized in that the adjusting device ( 16 ) is plate-like and substantially perpendicular to the passage direction ( 5 ) of the edge material ( 1 ) adjustable between cover component ( 17 ) and rear wall component ( 2 ) and is preferably infinitely adjustable. Activation device according to one of claims 17 or 18, characterized in that the plate-like actuating device ( 16 ) at least portions of the hot gas outlets ( 3 ) and the escape of hot gas ( 12 ) closes off these sections. Activation device according to one of claims 17 to 19, characterized in that on the edge material ( 1 ) facing the plate-like adjusting device ( 16 ) Management facilities ( 20 ) are arranged, which the edge material ( 1 ) when passing through the activation space ( 26 ) relative to the hot gas outlets ( 3 ) and the collection intakes ( 4 ) for the hot gas ( 12 ) to lead. Activation device according to one of the preceding claims, characterized in that the hot gas outlets ( 3 ) Outlet openings for the hot gas ( 12 ) in the form of preferably cylindrical bores and / or elongated holes and / or slots. Activation device according to one of the preceding claims, characterized in that the catch inlets ( 4 ) for the hot gas ( 12 ) cylindrical bores and / or elongated holes and / or slots, which with a channel ( 14 ) for the removal of the collected hot gas ( 12 ) are in fluid communication. Activation device according to one of the preceding claims, characterized in that in the activation space ( 26 ), preferably in the region of the edge material ( 1 ) facing surface ( 11 ) of the rear wall component ( 2 ), at least one institution ( 10 ) for swirling the hot gas ( 12 ) in the enclosed activation space ( 26 ) for a more intense heat transfer of hot gas ( 12 ) on the edge material ( 1 ) is arranged. Activation device according to claim 23, characterized in that as means for swirling at least one baffle-like device ( 10 ) for hot gas control in the area between hot gas outlets ( 3 ) and intercepting inlets ( 4 ) for the hot gas ( 12 ) is arranged. Activation device according to one of claims 23 or 24, characterized in that the device for swirling ( 10 ) at least one chamber-like depression ( 15 ) in the back wall component ( 2 ) having. Activation device according to one of claims 23 to 25, characterized in that hot gas outlets ( 3 ) and / or collection inputs ( 4 ) for the hot gas ( 12 ) even with bullying devices ( 10 ) are provided. Activation device according to one of claims 23 to 26, characterized in that the baffle-like device ( 10 ) fixed in the activation space ( 26 ) is arranged. Activation device according to one of claims 23 to 26, characterized in that the baffle-like device ( 10 ) relatively adjustable to the continuous edge material ( 1 ) in the activation space ( 26 ) is arranged, preferably in the continuous plane of the edge material ( 1 ) or perpendicular to it. Activation device according to claim 28, characterized in that the baffle-like device ( 10 ) during the activation process movable in the activation space ( 26 ) is arranged, preferably rotating or oscillating. Activation device according to claim 29, characterized in that the movement of the baffle-like device ( 10 ) in the activation space ( 26 ) externally, preferably via a drive motor, preferably an electric motor, or internally via the hot gas ( 12 ) is self-propelled. Activation device according to one of claims 23 to 30, characterized in that the baffle-like device ( 10 ) even smooth or has a specific roughness and / or profiling. Activation device according to one of the preceding claims, characterized in that the with the Auffangseinlässen ( 4 ) collected hot gas ( 12 ) is traceable to a hot gas treatment or to a heat exchanger or a preheating of the edge material. Activation device according to one of the preceding claims, characterized in that the activation space ( 26 ) delimiting components, in particular rear wall component ( 2 ), Cover component ( 17 ) and closure devices ( 21 ) is formed of a heat-insulating material or provided with a heat-insulating material. Activation device according to one of the preceding claims, characterized in that heat protection devices the activation space ( 26 ), in particular behind the rear wall component ( 2 ) in the direction of further functional components of the device for applying edge strips ( 1 ). Activation device according to one of the preceding claims, characterized in that the rear wall component ( 2 ) Has openings which are directed to the narrow surface of the workpiece to be coated and specifically hot gas ( 12 ) for preheating the to be coated narrow surface of the workpiece to be coated.

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