Device (32) for the production of a thermoset, half-honeycomb strip (2e, 2f) made of a strip material (2), where the strip material (2) essentially consists of a fibre material, in particular of a paper web, where the fibre material has been preimpregnated with a binder which crosslinks to give a thermoset, comprising a first and a second impression wheel (4a, 4b) each having a contact area (4v) which runs in circumferential direction, with impression teeth (4c) arranged in circumferential direction with intervening distances and with depressions (4d) arranged therebetween, where the first and the second impression wheel (4a, 4b) have been designed appropriately for one another and have been arranged so as to intermesh with one another so as to produce, between the first and the second impression wheel (4a, 4b), a pressure site (4p) which takes the form of a line or area and which, during the rotation of the impression wheels (4a, 4b) progresses along the contact area (4v) in order to create a rolling pressure site (4p) that moves along the strip material (2), and also comprising a controllable pressure-generation device (4m) connected to the first and second impression wheel (4a, 4b) in order to generate a controllable pressure between the impression wheels (4a, 4b), and also comprising in each case a drive device (4h, 4i) to drive the first and the second impression wheel (4a, 4b), and also comprising a heating device (4j) for at least one of the impression wheels (4a, 4b), and also comprising a regulating device (30) connected at least to the drive devices (4h, 4i) and to the pressure-generation device (4m) in a manner permitting signal transmission, in order to provide mirror-image rotation of the impression wheels (4a, 4b) in a direction of conveying (F), and in order to generate a controllable pressure by way of the pressure-generation device (4m) and the drive devices (4h, 4i) at the pressure site (4p).
E04C 2/36 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
H05B 6/10 - Induction heating apparatus, other than furnaces, for specific applications
B29C 65/18 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated tool
The invention relates to a device (1) for the production of a honeycomb structure (10) made of a strip material (2), where the strip material (2) contains a fibre material which is in particular made of a paper web and which has been preimpregnated with a binder that crosslinks to form a thermoset, where the device (1) has equipment for embossing thermoset strips (2e, 2f) in the form of a semi-honeycomb made of the strip material (2), where the device (1) has a bonding device (6, 34) for bonding the strips (2e, 2f) in the form of a semi-honeycomb or of honeycomb-shaped strips (2g) formed from at least two strips (2e, 2f) in the form of a semi-honeycomb, at bonding sites to form a honeycomb structure (10), and where the device (1) has means for heating the honeycomb-shaped strips (2g) or of the honeycomb structure (10) so as to harden the bonding sites. The invention further relates to a process for the production of a honeycomb structure (10).
E04C 2/36 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
H05B 6/10 - Induction heating apparatus, other than furnaces, for specific applications
B29C 65/18 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated tool
The invention relates to a device (1) for producing a honeycomb structure (10) from strip material (2) comprising a supply and forming device (32), which forms a structured strip (2e, 2f) from the strip material (2) and additionally determines a conveying speed of the structured strip (2e, 2f), and a stop device (34) comprising a feed channel (34a), wherein the stop device (34) is disposed downstream of the forming device (32) such that the structured strip (2e, 2f) can be supplied to the feed channel (34a), and wherein the honeycomb structure (10) comprises a stop edge (10a), which runs parallel to the feed channel (34a), and wherein the stop device (34) comprises a stop (27) and stop means (21a, 21b), which are designed in a movable manner such that the structured strip (2e, 2f) can be connected to a stop edge (10a) of the honeycomb structure (10).
B29C 65/00 - Joining of preformed partsApparatus therefor
E04C 2/36 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
B31D 3/02 - Making articles of cellular structure, e.g. insulating board honeycombed structures
The invention relates to a device (32) for producing a thermosetting strip (2e, 2f) having a honeycomb half-cell shape from a strip material (2), wherein the strip material (2) consists essentially of a fibre material, in particular a paper web, said fibre material being pre-impregnated with a binder that is to be cross-linked to a thermosetting material. Said device comprises a first and a second stamping wheel (4a, 4b), each having a contact surface extending in the circumferential direction with stamping teeth (4c) which are arranged at a distance from each other in the circumferential direction and with recesses (4d) arranged therebetween. The first and the second stamping wheels (4a, 4b) are designed to be adapted to one another and arranged to engage into one another, such that a line- or surface-shaped pressure point (4p) forms between the first and the second stamping wheels (4a, 4b), which is moving along the contact surface during the rotation of the stamping wheels (4a, 4b) in order to produce a pressure point (4p) that moves along and rolls off the strip material (2). Said device further comprises a pressure-generating device (4m) which is connected to the first and the second stamping wheels (4a, 4b) in order to generate a pressure between the stamping wheels (4a, 4b), a respective drive device (4h, 4i) for driving the first and the second stamping wheels (4a, 4b), a heating device for at least one of the stamping wheels (4a, 4b), and a regulation device (30) connected to at least one of the drive devices (4h, 4i) in a signal-transmitting manner in order to rotate the stamping wheels (4a, 4b) in opposition in a conveying direction (F) and to generate a controllable pressure on the pressure point (4p) via the pressure-generating device (4m) and the drive devices (4h, 4i).
B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
B29C 65/78 - Means for handling the parts to be joined, e.g. for making containers or hollow articles
B29L 31/60 - Multitubular or multicompartmented articles, e.g. honeycomb
E04C 2/36 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
The invention relates to a method for producing a thermosetting strip (2e) having a honeycomb half-cell shape from a strip material (2), wherein the strip material (2) consists essentially of a fibre material, in particular a paper web, said fibre material being pre-impregnated with a binder that is to be cross-linked to a thermosetting material. According to the invention, the strip material (2) is continuously conveyed, thereby heated and subjected to a pressure in order to cause a condensation reaction. A pressure is exerted on the continuously conveyed strip material (2) under the effect of a rolling movement, the binder is pressed into the strip material (2) and the condensation products which were released during the polycondensation process are pressed out of the strip material (2) by guiding the strip material (2) between two stamping wheels which are mutually engaging, heated and mutually roll off so that the strip material (2) is heated by the stamping wheels (4a, 4b), is subjected to the pressure and is at the same time shaped to form a strip having a honeycomb half-cell shape (2e).
B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
B29C 65/78 - Means for handling the parts to be joined, e.g. for making containers or hollow articles
B29L 31/60 - Multitubular or multicompartmented articles, e.g. honeycomb
B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
H05B 6/10 - Induction heating apparatus, other than furnaces, for specific applications
E04C 2/36 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
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