DE102011055141B4 - Film removal apparatus and method for removing a film of objects - Google Patents

Abstract

A film removal device (50) for removing film materials (10) from objects (12), with a perforation device (70) for introducing at least one hole (L) into the film material (10) resting against the object (12) and with a loading device ( 60), which impinges a region lying between the film material (10) and the object (12) through the hole (L) with a flowable medium, characterized in that the perforation device (70) is the object underlying the film material (10) (12) is not damaged, since the perforating device (70) is movable relative to the film in any position, so that the hole (L) can be placed at any position of the film and the perforating device (70) relative to the object (12) in a first predetermined direction (R1), and a second predetermined direction (R2), which with the first direction (R1) includes an angle different from 0 °, movable is, wherein both the first direction (R1) and the second direction (R2) extend in a plane which is parallel to at least one of the sheet material (10) provided portion of the object (12).

Description

The present invention relates to an apparatus and a method for detaching film materials - in particular self-adhesive film materials - from objects. As part of industrial production, general cargo, such as housing parts, often provided with films. An essential step in the processing of such objects is to replace the film of this object at least in sections. For this purpose, various devices are known from the prior art. An essential problem in the replacement of such films is that although the film should be replaced, the respective release device should not damage the object.

From the DE 10 2009 034 434 A1 a film release device, a film release system and a method for film release are known. The separation of a film should take place thermally, and the tip of a film release device should be softer than the surface of the workpiece on which the film is mounted. In this way, while preventing the object to be processed from being damaged, it is also necessary for the processing device, here a tip, to be replaced relatively frequently.

The DE 198 16 793 C1 describes a method and an apparatus for cutting films consisting of a carrier film and a decorative layer located thereon. In this case, a decorative layer is first removed by means of a laser radiation along a cutting line from a carrier film and then cut mechanically in the thus formed removal track of the carrier film by means of a knife. However, this method is only partially suitable for detaching plastic films from objects, since it is not always ensured that the respective film material can also be cut by means of a laser.

The GB 2 163 092 A describes a plastic film separator. This device has a symmetrical tip that does not need to be reoriented to cut in different directions.

From the DE 20 2009 010 663 U1 a Folienentfernvorrichtung is known. This film removal device has a knife wheel for scoring the film and a scraper for removing the thus separated film.

The EP 0 292 952 describes a device for cutting characters in a template. In this case, a heated cutting pin is used, the temperature of which is in the range between 200 ° C and 300 ° C. Each cutting pin has a conical tip.

The EP 0 116 415 describes improvements in production lines to remove a slide from another object. Again, a dividing line is generated by means of a tool, this separating element is provided with a heating element.

The DE 40 21 786 A1 relates to a method and a device for automatic loading of machines with packaged masses, in particular polyester masses for processing in injection molding machines, wherein the doughy polyester mass is packaged airtight in a packaging film as a handy polyester bag.

The DE 39 21 356 A1 describes a device for releasing packaging film from sticky masses by means of a hollow needle, with which compressed air is blown between the packaging film and the packaged object.

The EP 1 923 315 A1 describes a method for removing a bag that wraps food loaf and a device for removing this bag.

The NL 10 27 106 C relates to a device for removing a housing from an object. In this case, a device for injecting a fluid between the object and the housing and two holding devices for holding the housing is present. Due to a mutual movement of the holding devices after the injection of the fluid, a force is exerted on the housing.

The GB 2 136 384 A discloses a device for opening a sealed container by placing it, using holding means, in a predetermined position within a protective grid into which a hollow needle is inserted. Subsequently, a high pressure liquid is injected into the container through the needle, whereby it is split and the frozen contents can fall into a collecting container.

The DE 202 19 543 U1 describes a device for removing an envelope enclosing an article, wherein there is an arrangement by means of which the coated article is treated with ultrasound before removal of the envelope.

The DE 10 2011 080 289 A1 discloses an apparatus for removing a sterile article from a foil pouch. A hollow needle serves to pierce the foil bag, whereby, by means of a gas connection connected to the needle, the film can be inflated and thus lifted off the sterile object.

The present invention is therefore based on the object to remove films from objects, without damaging the objects themselves. This is achieved according to the invention by a device and a method according to the independent claims. Advantageous embodiments and further developments are the subject of the dependent claims.

A film removal device according to the invention for removing film materials from objects has a perforation device in order to introduce at least one hole into the film material applied to the object. In this case, the perforating device is movable relative to the object in a first predetermined direction and a second predetermined direction, which includes an angle different from 0 ° with the first direction, wherein both the first direction and the second direction extend in a plane which is parallel extends to at least one provided with the film material portion of the object. Furthermore, a loading device is provided which acts on a lying between the film material and the object area through the hole with a flowable medium.

It is therefore proposed that at least one hole is introduced into the film by means of a perforating device and then the film is lifted by being exposed to the flowable medium from the object, that is to say in particular by blowing. In this case, the perforating device relative to the film is advantageously movable in any position, so that the mentioned hole can be set at substantially any position of the film. This relative movement of the film relative to the perforating device can be achieved both by a movement of the perforating device and by a movement of the object with the film as well as by a combination of these movements.

The perforator may have a tip, such as a needle-like tip, which pierces the film material without damaging the object underneath. In the prior art, metal scrapers and the like are usually used to lift the foils. However, this is not reliable or leaves traces on the surface. If now, as proposed here, a thin nozzle, for example in the form of an injection needle, used so that the film pierced so that, for example, compressed air can be injected, so the film lifts in the form of a bubble. Advantageously, the perforating device is made of a material which is harder than the object to which the film material is attached. It would also be possible for the film to be made of copper, for example. The flowable medium is in particular a gaseous medium and in particular air. However, it would also be possible to introduce liquids (possibly also in addition), such as solvents, which dissolve, for example, an adhesive layer between the film material and the object.

In a further advantageous embodiment, the perforation device has a channel through which the flowable medium can be guided and this channel forms part of the loading device. Thus, for example, the channel may be formed in a hollow rod, the end of which forms the above-mentioned tip. In this embodiment, the perforating device is designed in the form of an injection needle. However, it would also be conceivable to form the perforating device separately from the channel, for example by means of a needle to pierce in the vertical direction and then introduce the channel obliquely thereto. However, the embodiment as an injection needle is preferred.

In a further advantageous embodiment, therefore, a tip for piercing the film material is arranged on a section of the perforation device facing the object. Advantageously, the device has a force measuring device which measures a force which is applied to the object by the perforation device.

In a further embodiment according to the invention, the film removal device has a heating device for at least partially heating the perforation device. In particular, the tip, which serves for piercing the film material, is heated. With the help of the heated tip, the above-mentioned hole can be more easily inserted in the film material. Advantageously, this heating device is switched on or off to ensure, depending on the material of the object that the heated or heated tip does not damage areas of the object.

In a further advantageous embodiment, the film removing device has a tightening device for attracting the film material located on the object. In this case, for example, a certain area of the film is lifted by means of the tip with the supply of air and then this area is raised with the attracting means of the object and thus permanently removed.

The attracting device is advantageously coupled to the tip in the movement. Advantageously, the tightening device and the tip are arranged on a common carrier.

In a further advantageous embodiment, the tightening device is a vacuum device, which acts on a region of the film material with a negative pressure and can lift it. However, it would also be possible for the attracting means to be an electrostatic attracting means which attracts the sheet material by electrostatic charging.

In a further advantageous embodiment, the tightening device is also movable in a direction which is perpendicular to the object acted upon by the film material. In this way, the film can also be lifted by a movement of the attracting device. Advantageously, the perforating device is movable in this direction perpendicular to the sheet material direction.

In a further advantageous embodiment, the device has a contact body, which can advantageously be applied in a closed circumference to a predetermined surface area of the film material arranged on the object. This may be, for example, a circular or polyconical circumference, wherein advantageously also the above-mentioned tip of the film removal device is arranged within this circumference. For example, the apply body may have a circumferential sealant, such as an O-ring, which is applied to said area. Within this sealant, for example, a vacuum is then applied, for example, and at the same time compressed air is introduced through the hole into the area between the film and the object. Now, if the landing body lifted, so that the film material is raised in the said area with it. In this way, the film can be completely removed from the object, without causing increased contact between the film removal device and the object, except for the area in which the hole was introduced.

Advantageously, a control device is provided, which controls the device such that it is first inserted and blown in and the film material is lifted only during the blowing. Advantageously, the contact body thus forms a vacuum device.

In a further advantageous embodiment, the film removing device has a separating device for at least sectionally separating the film material arranged on the object, the separating device being opposite the object in a first predetermined direction and a second predetermined direction, which with the first direction has an angle different from 0 ° and wherein both the first and second directions are in a plane parallel to at least one portion of the object provided with the sheet material, the separation means having a separator contactable with the sheet material for separation therebetween.

It is therefore proposed that cutting lines be introduced first in the film material, which is particularly advantageous if not all film areas are to be subtracted from the object, but only certain film areas. After the respective cutting or cutting edges have been introduced, the corresponding film sections can be removed with the film removing device described here.

Advantageously, the separating body has a curved profile with a predetermined radius of curvature on a surface facing the film material.

In the prior art, as mentioned above, contact tips, that is sharp-edged elements used to score the films. However, such sharp-edged elements regularly involve the risk of damaging the underlying surface of the object. In contrast, it is proposed that the separation object or the separating body has your predetermined radius of curvature, that is curved, so as to protect the object. In this case, a protection of the object is also possible if the separating body consists of a very hard material, such as diamond or hardened steel and in particular of a material which is harder than the material of the respective object. Advantageously, the two directions mentioned above, in which the separating device is movable, perpendicular to each other. In this way it is achieved that the separating body can in principle be brought into any desired cutting position for separating the film from the object.

In a further advantageous embodiment, the separating device itself is movable in the two directions, but it would also be possible for the separating device itself to stand in the space and for the object to move relative to the separating device.

In a further advantageous embodiment, the device has a first drive device for moving the separating device in the first direction, and particularly preferably also one second drive means for moving the separator in the second direction. Advantageously, at least one drive device and preferably both drive devices are an electric motor, and particularly preferably a servomotor or linear motor. Advantageously, the two above-mentioned directions are not the same, that is, they do not enclose an angle of 0 ° with each other or an angle of 180 ° with each other.

Due to the above-mentioned rounding, therefore, the underlying object under the film is spared. Strictly speaking, the plastic film is not, as in the prior art, cut through with a sharp-edged object, but cut through with a separating body, which has a softer compared to the prior art "edge course". It would even be conceivable that the material is pushed through. By the movement of the separating device in the two directions and a separation of the material along a predetermined driving profile is possible. As will be described in more detail below, curves, corners and the like can also be cut in particular.

In a further advantageous embodiment, the separating body has at least the same hardness as the object itself. Advantageously, the separating body is replaceable, so that it can be replaced in the event of wear against a new separating body.

In a further advantageous embodiment, a support for holding the object is present, this support is advantageously arranged stationary.

However, it would also be possible in principle to effect the separation of the film-like material by a hot medium, for example hot air or a hot liquid or even hot steam. In this embodiment, the separating device would advantageously have a channel in which the respective flowable medium can be supplied to the separating body, this separating body in this case being an outlet opening or having an outlet opening through which the flowable medium impinges on the film. For example, a separation process could also take place by exposure to hot air (for example in a temperature range between 200 and 300 ° C.). The applicant reserves the right to claim protection for such a design as well. In particular, it would be possible to combine such a separating body, which acts on the film with a gaseous hot medium, in combination with other features disclosed in this specification, such as the mobility in the two directions.

In a further advantageous embodiment, the radius of curvature is between 0.03 mm and 0.4 mm, preferably between 0.06 mm and 0.2 mm and particularly preferably between 0.08 mm and 0.2 mm. The choice of this radius of curvature also depends on the film material to be separated and / or on the respective object. For example, the film thickness of the film material may be relevant in the choice of the radius of curvature.

In a further advantageous embodiment, the separating device is movable relative to the object in a third direction, which differs from both the first direction and the second direction. Preferably, the third direction extends with respect to both the first direction and the second direction at an angle which is between 30 ° and 150 °, preferably between 60 ° and 120 °, preferably between 80 ° and 100 °, and most preferably perpendicular to the provided with the film material portion of the object is.

This mobility in the third direction serves on the one hand to settle the separating body of the film, for example to allow a cut interruption, but also so that with the help of this movement even highly curved curves or corners can be separated. Furthermore, by this lifting a way can be created to respond to unevenness of the film or the respective underlying object.

In a further advantageous embodiment, the separating body is arranged on a carrier and the separating body is formed with respect to this carrier rotatable wheel. In this embodiment, therefore, a rolling against the film to be processed takes place. Alternatively, it would also be possible for the separating body to be equipped with a spherical surface facing the film material.

In a further advantageous embodiment, the wheel is driven by a further drive (in particular rotationally) in order to protect the object even further. In this way, a slippage of the wheel relative to the object can be avoided and in this way can be further prevented the risk of scratch marks. Thus, it is possible that the drive that drives this wheel is tuned in response to the drive that moves the wheel in its entirety or the carrier. Advantageously, therefore, a control device is provided which controls the movement of the separating device in the two above-mentioned directions and which additionally also drives the drive device for driving the rotatable wheel. This is advantageous a drive speed This wheel is controlled in response to the Verfahrprofil the separator relative to the object.

In a further advantageous embodiment, the wheel has a diameter which is between 0.1 mm and 30 mm, preferably between 0.5 mm and 25 mm, preferably between 1 mm and 20 mm and particularly preferably between 5 mm and 15 mm, and particularly preferably between 10mm and 15mm. Damage to the object can be prevented by these comparatively small radii, since the contact area between the wheel and the object can be kept very small, and thus, in particular when cutting curved paths, no scratch marks in one direction, which are transverse to the direction of movement of the separating body runs, can arise.

Advantageously, the separator is removable from the separator. In this way, the device can be adapted quickly to different film materials or objects. Thus, for example, a quick-change mechanism can be provided, the replacement of the separator - if necessary. Even without the aid of tools -. For example, if the separator is a wheel, then a set of wheels could be provided, all having substantially the same diameter but different radii of curvature.

In a further advantageous embodiment, the separating body is pivotable relative to an axis which is substantially perpendicular to the portion of the object provided with the film material. Therefore, it is possible in this embodiment, that the separating body can also align according to the current direction of movement of the separator. Particularly preferably, this axis runs through the contact point between the film and the separating body or through the contact surface between the film and the separating body. In this way, even lighter curves can be cut.

By substantially perpendicular is meant that an angle between a vertical direction and the axis is less than 20 °, preferably less than 10 ° and particularly preferably less than 5 °.

It is possible that the entire carrier with the separating body in the plane is pivotable, but it would also be possible that the separating body relative to the carrier in the said plane is pivotable.

Furthermore, it would also be possible for the separating body, in addition to the said axis, to be pivotable about a further axis, in particular about an axis which is arranged offset parallel to the foil and preferably offset therefrom. In this way, it is also possible that with the help of the separating body curved surfaces, for example, 90 ° curved surfaces of the object to be processed can be freed from the film.

In a further advantageous embodiment, the film release device has a force detection device which determines a force with which the separating body is loaded against the object or the film to be separated. In this way, a finer control of the separation process is possible because, for example, a maximum force can be adjusted with which the separating body is pressed onto the film or the object and which should not be exceeded. Advantageously, the object on which the film is arranged is a solid, which is particularly preferably less flexible than the film arranged on it.

In a further advantageous embodiment, the film removal device also has a distance measuring device for detecting a distance between the separating body and the object. This may be, for example, magnetic distance detection device to optical sensors, or the like.

In a further advantageous embodiment, a measuring device for measuring a height structure of the object or of the object acted upon by the film is also provided.

Advantageously, the device further comprises a control device for controlling the entire movement sequence, that is both for moving the separating device in the above-mentioned directions as well as for moving the separating device in the direction perpendicular thereto as preferably also for rotating the separating body and / or for driving the separating body.

In a further advantageous embodiment, the separating body is heated. Thus, for example, in the case of a rotatable separating wheel, a heating cartridge may be provided in the interior thereof, which in this way heats the entire separating body. Also, heating coils or the like could be arranged inside the separator. A temperature of the separating body is advantageously adjustable to achieve an adaptation to different film materials. Advantageously, the film material is a plastic material.

In a further advantageous embodiment, the film release device has a Control means, which controls a movement of the separating body in the direction which is preferably perpendicular to the above-mentioned first and second directions, in response to a force applied by the separating body to the object force. Thus, for example, when a certain force characteristic value or force limit value is exceeded, the separating body can easily be lifted off the film and / or be brought to the film when it falls below a certain force characteristic value or force limit value.

These force limits are advantageously selected such that on the one hand the film can be cut through safely, on the other hand, however, the object is not damaged. Advantageously, these force limits are adjustable or changeable. Instead of or in addition to the invention, a biasing device - for example in the form of a spring - is provided, which biases the separating body in the direction of the film material. However, the biasing member may also be formed by an electric motor drive.

Furthermore, a control device is provided, which causes the above-mentioned hole in (in particular local) dependence is generated by a generated separating edge. In particular, the control device ensures that the hole is generated at a certain minimum distance from the separating edge, for example at a distance of 2 cm and can be achieved in this way that when blowing with, for example, air, this air does not have a corresponding edge section of the film material exit. A control device thus advantageously stores the position at which the separating device has in each case attached the cuts and accordingly adjusts the positioning of the perforating device. However, it would also be conceivable that a local detection device detects the separating edge (s). On the other hand, the individual holes are also advantageously not set too far from corresponding separating edges, so that when the film is raised, an edge region is reached relatively soon, in order to be able to simply pull off the film in this way.

The present invention is further directed to a method of removing sheet material from an object, wherein a perforating means creates a hole in the sheet material at a predetermined position of the sheet material and an urging means passes through this hole an area between the sheet material and the object flowable medium is applied to lift the film material from the object. It is therefore also proposed on the method side, that in the film, a hole is introduced, for example by means of a lancing device and then the area between the film and the object is raised by the application of the flowable medium.

In an advantageous method, a tightening device pulls the film material into an area opposite the object, this area being located in the vicinity of the hole. In this way, a very advantageous lifting of the film material is achieved.

Advantageously, the blowing and tightening takes place substantially simultaneously. It would also be possible that, for example, air used for tightening is also used simultaneously to blow over the hole, so that in this respect a closed system is provided. Further advantages and embodiments will be apparent from the attached drawings:

• 1 eine schematische Draufsicht auf eine erfindungsgemäße Vorrichtung;
• 2 eine schematische Darstellung einer Trenneinrichtung;
• 3 eine Ansicht eines Trennkörpers;
• 4 eine Darstellung zur Veranschaulichung der geometrischen Ausgestaltung des Trennkörpers;
• 5 eine weitere Darstellung einer Trenneinrichtung;
• 6 eine Darstellung einer weiteren Ausführungsform einer Trenneinrichtung, und;
• 7 eine weitere Darstellung einer Trenneinrichtung;
• 8 eine Darstellung einer erfindungsgemäßen Vorrichtung mit einer Trenneinrichtung und einer Folienentfernungseinrichtung;
• 9 eine Darstellung einer erfindungsgemäßen Folienentfernungseinrichtung;
• 10 eine Darstellung der Funktion der Folienentfernungsvorrichtung; und
• 11 eine weitere Darstellung einer Folienentfernungsvorrichtung.

Show:

• 1 a schematic plan view of a device according to the invention;
• 2 a schematic representation of a separator;
• 3 a view of a separator;
• 4 a representation for illustrating the geometric configuration of the separating body;
• 5 a further illustration of a separating device;
• 6 a representation of another embodiment of a separating device, and;
• 7 a further illustration of a separating device;
• 8th an illustration of a device according to the invention with a separator and a film removal device;
• 9 an illustration of a film removal device according to the invention;
• 10 a representation of the function of the film removal device; and
• 11 another illustration of a film removal device.

1 shows a schematic representation of a device according to the invention 1 , In this case, the reference numeral refers 12 on an object on which a slide 10 (not visible) is applied. The device 1 has a separator 2 on which for separating the film material 10 serves. This separator 2 is doing so in one direction X as well as in one direction Y movable. These directions X and Y stand here vertically to each other and form a plane e which are parallel to the object 12 or the film material 10 lies.

In this case, the reference numeral 46 a drive device shown only schematically, which for the movement of the separating device 2 in that direction Y provides. For this purpose, a holding body, as here a rod 44 , arranged such that this holding body along the direction Y can be moved. At this holding body 44 is a second drive device 42 arranged, showing the movement of the separator 2 in that direction X causes. In this way, the separator is in principle in any position relative to the object 12 displaceable. Also, any dividing lines can be incorporated into the film in this way, as shown schematically by the dividing lines T1 . T2 and T3 is shown.

Furthermore, the device 1 removal means (not shown) for detaching the severed portions of the sheet material from the object 12 serves. This removal device can also be movable in a similar manner as the separator 2 and in particular, it can be so mobile that, in principle, it can also be moved to arbitrary points or positions with respect to the object 12 can be moved.

The reference number 30 Roughly schematically indicates a control device for controlling the device 1 , In this case, this control device can control in particular the drives, which the separator 2 move in the X and Y directions. In addition, however, the control device can also control the movement of the separating device 2 in that direction Z control and preferably also a drive device which drives the separating body as well as a drive device which the separating device to one of the film 10 essentially perpendicular axis rotates.

In this case, it is possible for the data to be initially input by the user for one or more separating lines to be generated, and then the control device controls the individual drives in such a way that these separating lines are produced without causing damage to the object. Advantageously, the control device 30 Therefore, a processor device, which determines from the movements of the separating device in the X and Y direction, as the separating body is driven and / or pivoted about the axis perpendicular to the film axis.

The above-mentioned removal device for (in particular permanent) removal of the film from the object or its movement can also be effected by the said control device 30 to be controlled. In this case, the removal device can for example be introduced to the dividing lines produced such that the regions to be separated can be removed. For example, if you want to remove the surface that is in 1 through the dividing line T3 is limited, the removal device along the longitudinal direction of this surface could be brought to this to remove the film.

2 shows a schematic representation of a separator 2 , Here again is the holding body 44 shown on which the drive device 42 is arranged, and in turn to this drive means a holding element 52 , At this holding element, a further drive device 48 be provided with their help, a movement of the separator 2 in that direction Z which are perpendicular to the directions X and Y is possible. At this separator 2 is a separator 20 provided here as a rotation axis D1 rotatable wheel is executed. Furthermore, this separator is 20 with the help of another drive device 54 with respect to a second axis of rotation D2 rotatable, so that also the separating body can be pivoted with respect to this axis. For this purpose is a holding element 56 by means of bearings 62 rotatable relative to a carrier 22 and thus also with respect to the holding element or the carrier rod 52 arranged.

3 shows an enlarged view of a separating body 20 , This separator has here a separation surface 26 on in contact with the foil material 10 get to separate this. The reference number D1 refers in turn to the axis of rotation to that of the separator 20 is rotatable.

4 shows an enlarged view of the separator 20 in the area of the separating surface 26 , One recognizes that the separation surface 26 not bent here as in the prior art or pointed, but a finite radius of curvature Rk having. By this radius of curvature Rk can - as mentioned above - the film material to be cut without this at the same time the underlying object is damaged. Through the interface 26 the film material is separated to the side can thus be stretched so that it is severed as a result. The film material is therefore preferably a flexible or extensible material. The interface is symmetrical to the plane of symmetry S arranged. However, it would also be possible to form the separating surface deliberately asymmetrically with respect to the plane of symmetry, in order to deliberately restrict the film material in working operation to one side with respect to the plane of symmetry. The control device can also control depending on the film material, how deep the separator 20 or the separating surface 26 is pressed into this. The radius of curvature Rk can be constant, but it can also change so that, for example, a central region of the contact surface has a larger radius of curvature than an outer region of the contact surface.

5 shows a further illustration of the device according to the invention. One recognizes further here a drive device 32 which the separating body 20 drives, that is in rotation with respect to the axis of rotation D1 drives. Furthermore, here is a heating element 28 provided, which for heating the separating body 20 serves. Due to this heat influence, the separation of the film material 20 be further improved. Furthermore, you can see that the axis of rotation D2 to which of the separating bodies 20 is pivotable, by a support point or a support surface A runs, which between the separating body 20 and the foil 10 is formed and preferably extends from the support surface perpendicular to the film.

The right part of the figure in 5 shows a view of the separator 20 from the side and thus in particular in a direction of movement along a movement of the separating body 20 opposite the object 12 or the film 10 ,

6 shows a further embodiment of a device according to the invention. In this embodiment, the separating body 20 designed as a spherical separator, which thus also has a finite radius of curvature. It is conceivable that this separating body 20 rotatable and, for example, in any direction rotatable relative to a carrier 34 is arranged, approximately in the nature of the ball of a ballpoint pen. The reference number 28 again refers to a heating device which is capable of supporting the carrier 34 and thus the separating body 20 to warm up. Both at the in 5 as well as at the 6 In the embodiment shown, it is possible that the separating body or the separating device also in the direction Z are mobile.

7 shows a further embodiment of the separation device according to the invention 2 , Again, the drive device is again 54 shown, which is a rotation of the separating body 20 around the axis of rotation D1 , which are also perpendicular to a plane of the film 10 extends, turns. The reference number 22 marks again the carrier on which the Tennkörper 20 is rotatably arranged. The reference number P indicates the path of movement of the separating device with respect to the film along which a dividing line is created by the separating process.

8th shows a further illustration of the device according to the invention. This representation is similar to the one in 1 shown here, in addition to a second in the direction R2 movable holding body 94 is provided, on which in turn is arranged in its entirety 70 marked perforating device. This is a drive device 92 provided, which the perforating device 70 in that direction R1 that is, moving in the horizontal direction. The reference number 96 indicates a second drive means, which the carrier 94 in that direction R2 emotional. In this way, also the perforating device 70 in principle in any position with respect to the object 12 to be moved.

For carrying out the method or for handling the device, several possibilities are conceivable. Thus, it would be conceivable that first the separating device, as described above, cuts the predetermined separating edges. The holding body 94 At this stage, it may become in a resting position, for example near an end position of the rail 4 are located. After the separating edges are cut, it would be possible, conversely, the carrier 44 to move in such an end position to then perform the release operation of the film with the perforating.

The perforating device 70 is advantageous also movable perpendicular to the plane of the figure to remove the films.

The reference number 30 Grossly schematically denotes a control device which, among other things, the movements of the perforating device 70 controls.

9 shows a further illustration to illustrate the method described here. Again, the perforator is 70 shown, which the film material in an area A punctures. There is a tip for that 64 provided which penetrates through the film material. The reference number 50 indicates the film removing device in its entirety.

The reference number 74 indicates a heating device with which the tip 64 can be heated. The reference number 66 indicates a cavity or channel through which, starting from a reservoir 75 a flowable medium, for example air, under the film, that is in an area between the film 10 and the object 12 can be performed. In this way, it comes to a curvature of the film material 10 , The reference number 60 indicates in its entirety a loading device, which the area below the film 10 or between the film 10 and the object 12 subjected to the flowable medium. The channel 66 is a part of this admission device. An opening 61 this channel is in the range of the above-mentioned peak intended. The admission device 60 can therefore be designed in the manner of an injection needle. By lifting the foil material 10 from the object 12 Also, an adhesive bond between the film material 10 and the object 12 separated.

For this reason, care should also be taken that the hole is not placed too close to a separating edge of the foil so that air does not get between the foil and the object 12 can escape.

The reference number 80 indicates in its entirety a tightening device which is capable of lifting the already lifted film from the object. In this case, the reference numeral refers 85 on a vacuum device, which the attracting device 80 subjected to this vacuum so as to attract the film material. The reference numeral 88 refers to a contact body, which can be applied to the film material, in particular to apply this to a negative pressure. Sealing means (not shown) are advantageously arranged on this contact body 88, which delimits the region of the film which lies within the contact body from the region of the film which lies outside the contact body 88. The tightening device may be offset from the perforating device 70 as shown in the figures. However, it would also be possible for the perforator to be within the donor 80 is arranged.

Furthermore, the perforation device can also be arranged resiliently on a carrier, so that the perforation device 70 or their tip with a certain spring force against the film 10 or the object is preloaded.

As can be seen in the figures, it is possible that the perforating device 70 (or the channel 66 ) is advantageously inclined relative to the object. In this way, a puncture of the film can be simplified An angle of inclination a relative to a direction perpendicular to the object can be between 10 ° and 80 °, preferably between 10 ° and 70 °, preferably between 20 ° and 60 ° and particularly preferably between 30 ° and 55 ° are. That way, the top gets 64 easier in the foil 10 inserted. In addition, a movement device could be provided which moves the tip not only on the object but also preferably a movement of the tip in 9 generated to the left.

10 shows a further illustration of the device according to the invention. Again, one can see a hole set by the perforator L and the laterally arranged next thereto attracting device, which is the film 10 in an area where it was raised.

At the in 11 Shown embodiment, several tightening devices 80 arranged side by side and also several perforators 70 , Here, first, a lifting of the film by means of compressed air in several areas and then the so-lifted film with the individual attraction devices 80 be raised.

It is possible in this way, for example, to lift the film along a separating edge. Subsequently, the thus raised end of the film material can be captured and withdrawn with a pickup device. This pick-up device could, for example, have two wheels which can be rotated into one another and feed the film thus detached.

Thus, for example, two nested and mutually rotatable hollow cylinder could be provided, which serve to receive the film as well as its winding. Thus, it would also be possible for the entire device, such as these inter-rotatable hollow cylinders, to be arranged on a pivotable arm which can pivot away from the object so as to peel off the entire foil. In this context, the above-mentioned DE 20 2009 010 663 U1 the disclosure of which is hereby also made in full to the disclosure content of the present application.

However, it would also be possible that after tightening or gripping the film by a movement of the in 8th shown carrier to one end of the rail 4 moved and then dropped, for example, in a receptacle. Also it would be possible that the whole in 8th shown arrangement is reversed, that is, the carrier 44 and 94 lie below the object, so that detached film can simply fall down. By the procedure proposed here, the detached film can be removed in principle in any surface areas of the object.

The Applicant reserves the right to claim individually or in combination with one another or several of the features disclosed in the context of this description, provided that these features are novel over the prior art.

LIST OF REFERENCE NUMBERS

1

contraption

2

separator

4

rail

10

Foil, foil material

12

object

20

separating body

22

carrier

26

interface

28

heating element

30

control device

32

driving means

34

carrier

42

driving means

46

driving means

48

driving means

44

holding body

50

Film removal device

52

retaining element

54

driving means

56

retaining element

60

loading device

61

opening

62

camp

64

top

66

channel

70

perforation

74

heater

75

reservoir

80

attracting means

85

vacuum equipment

92

driving means

94

carrier

96

driving means

A

Piercing region

R1, R2, X, Y, Z

directions

T1, T2, T3

dividing lines

e

level

D1, D2

rotational axes

Rk

radius of curvature

P

motion path

S

plane of symmetry

L

hole

a

tilt angle

Claims (12)

A film removal device (50) for removing film materials (10) from objects (12), with a perforation device (70) for introducing at least one hole (L) into the film material (10) resting against the object (12) and with a loading device ( 60), which impinges a region lying between the film material (10) and the object (12) through the hole (L) with a flowable medium, characterized in that the perforation device (70) is the object underlying the film material (10) (12) is not damaged, since the perforating device (70) is movable relative to the film in any position, so that the hole (L) can be placed at any position of the film and the perforating device (70) relative to the object (12) in a first predetermined direction (R1), and a second predetermined direction (R2), which with the first direction (R1) includes an angle different from 0 °, movable is, wherein both the first direction (R1) and the second direction (R2) extend in a plane which is parallel to at least one of the sheet material (10) provided portion of the object (12). Foil removal device (50) according to Claim 1 , characterized in that the perforation device (70) has a channel (66) through which the flowable medium can be guided and this channel forms a part of the loading device (70). Foil removal device (50) according to Claim 2 , characterized in that at a said object (12) facing the end of the perforating device (70) has a tip (64) for piercing the film material (10) is arranged. Foil removal device (50) according to Claim 3 , characterized in that the Folienentfernvorrichtung (50) has a heating device (74) for at least partially heating the perforating device (70). Film removal apparatus (50) according to at least one of the preceding claims, characterized in that the A film removal device has a tightening device (80) for attracting the film material (10) located on the object (12). Foil removal device (50) according to Claim 5 characterized in that the attracting device (80) is a vacuum device (85) or has a vacuum device (85) which applies a negative pressure to a region of the film material (10). Film removal device (50) according to at least one of the preceding claims, characterized in that the device (50) has a contact body (88) which can be applied with an advantageously closed circumference to a predetermined surface area of the film material (10) arranged on the object (12) is. Arranged film removal device (1) according to at least one of the preceding claims, characterized in that the film removal means comprises a separating means (2) for at least partially separating the at the object (12) sheet material (10), wherein said separating means (2) relative to the object ( 12) in a first predetermined direction (X), and a second predetermined direction (X), which with the first direction (X) includes an angle different from 0 °, is movable, wherein both the first direction (X) and the second direction (Y) extending in a plane which is parallel to at least one of the sheet material (10) provided portion of the object (12), wherein the separating device (2) with the sheet material (10) for bringing it into contact separation body (20), A method of removing sheet material from an object (12), wherein a perforating means (70) at a predetermined position of the sheet material (10) creates a hole (L) in the sheet material (10) and urging means (60) through said hole (L ) is exposed to a flowable medium between a sheet material (10) and the object area to lift the sheet material (10) of the object (12), characterized in that the perforating means (70) under the sheet material (10) lying object (12) is not damaged because the perforating device (70) relative to the film in any position is movable, so that the hole (L) can be placed at any position of the film. Method according to Claim 9 characterized in that attracting means (80) attracts the sheet material (10) in an area opposite to the object (12), said area being in the vicinity of the hole (L). A film removal device (50) for removing film materials (10) from objects (12), with a perforation device (70) for introducing at least one hole (L) into the film material (10) resting against the object (12) and with a loading device ( 60), which impinges a region lying between the film material (10) and the object (12) through the hole (L) with a flowable medium, characterized in that the perforation device (70) is the object underlying the film material (10) (12) undamaged, wherein the Folienentfernvorrichtung (50) has a heating device for at least partially heating the perforating device and the perforating device (70) relative to the object (12) in a first predetermined direction (R1), and a second predetermined direction (R2) which is movable at an angle different from 0 ° with the first direction (R1), both the e First direction (R1) and the second direction (R2) in a plane which is parallel to at least one provided with the film material (10) portion of the object (12). A film removal device (50) for removing film materials (10) from objects (12), with a perforation device (70) for introducing at least one hole (L) into the film material (10) resting against the object (12) and with a loading device ( 60), which impinges a region lying between the film material (10) and the object (12) through the hole (L) with a flowable medium, characterized in that the perforation device (70) is the object underlying the film material (10) (12) is not damaged, wherein the perforating device (70) is resiliently arranged on a carrier so that the perforating device (70) is biased against the object (12) with a certain spring force, and the perforating device (70) opposite the object (12) in FIG a first predetermined direction (R1), and a second predetermined direction (R2), which with the first direction (R1) an angle different from 0 ° is movable, wherein both the first direction (R1) and the second direction (R2) extend in a plane which is parallel to at least one with the film material (10) provided portion of the object (12).

Images